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authorTomi Virkki <virkki@vaadin.com>2016-01-12 16:59:26 +0200
committerTomi Virkki <virkki@vaadin.com>2016-01-12 21:41:11 +0200
commitd8b0a67cbfe0bce683ee4005797e0bd84ba7a54d (patch)
treeaad9b3be4ae4719a9700570ac70e77deee066c3e /demo
parent22b6379602dff09bf1b3a662a6e59f5d852be1ae (diff)
downloadvaadin-core-d8b0a67cbfe0bce683ee4005797e0bd84ba7a54d.tar.gz
vaadin-core-d8b0a67cbfe0bce683ee4005797e0bd84ba7a54d.zip
Moved and updated integration examples from vaadin-grid to vaadin-core-elements
Diffstat (limited to 'demo')
-rw-r--r--demo/angular-demo-embed.html60
-rw-r--r--demo/angular-grid.html12
-rw-r--r--demo/angular-grid.ts48
-rw-r--r--demo/angular2.html109
-rw-r--r--demo/common.html32
-rw-r--r--demo/js_dependencies/JSXTransformer.js15924
-rw-r--r--demo/js_dependencies/Rx.min.js211
-rw-r--r--demo/js_dependencies/angular2-polyfills.min.js1
-rw-r--r--demo/js_dependencies/angular2.min.js19
-rw-r--r--demo/js_dependencies/react.min.js15
-rw-r--r--demo/js_dependencies/system.js6
-rw-r--r--demo/js_dependencies/typescript.js50339
-rw-r--r--demo/polymer.html181
-rw-r--r--demo/react-demo-embed.html63
-rw-r--r--demo/react.html150
15 files changed, 67170 insertions, 0 deletions
diff --git a/demo/angular-demo-embed.html b/demo/angular-demo-embed.html
new file mode 100644
index 0000000..467f1de
--- /dev/null
+++ b/demo/angular-demo-embed.html
@@ -0,0 +1,60 @@
+<!doctype html>
+<html>
+
+<head>
+ <title>vaadin-grid Code Examples - Angular 2 Integration</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+ <link rel="import" href="common.html">
+
+ <script src="js_dependencies/system.js"></script>
+ <script src="js_dependencies/typescript.js"></script>
+ <script src="js_dependencies/angular2-polyfills.min.js"></script>
+ <script src="js_dependencies/Rx.min.js"></script>
+ <script src="js_dependencies/angular2.min.js"></script>
+
+ <style>
+ body {
+ padding: 0;
+ margin: 0;
+ }
+
+ img.user-image {
+ position: absolute;
+ bottom: 0px;
+ right: 0px;
+ max-width: 33%;
+ max-height: 33%;
+ }
+ </style>
+ <script>
+ (function wait() {
+ // Wait for the polyfilled browsers to finish importing needed resources
+ if (!document.querySelector('link[href$="vaadin-grid.html"]') || !window.getJSON) {
+ return setTimeout(wait, 50);
+ }
+
+ // Configure SystemJS
+ System.config({
+ transpiler: 'typescript',
+ typescriptOptions: {emitDecoratorMetadata: true},
+ packages: {'src': {defaultExtension: 'ts'}}
+ });
+
+ // Bootstrap
+ System.import('angular2/platform/browser').then(function(ng) {
+ System.import('angular-grid.ts').then(function(src) {
+ ng.bootstrap(src.AngularGrid);
+ });
+ });
+ })();
+ </script>
+</head>
+
+<body>
+ <angular-grid></angular-grid>
+</body>
+
+</html>
diff --git a/demo/angular-grid.html b/demo/angular-grid.html
new file mode 100644
index 0000000..77869ad
--- /dev/null
+++ b/demo/angular-grid.html
@@ -0,0 +1,12 @@
+<vaadin-grid [columns]="columns" [items]="items" (selected-items-changed)="onSelect()">
+</vaadin-grid>
+
+<img *ngIf="selected" class="user-image" src="{{selected.user.picture.large}}">
+
+<div style="display: none">
+ <select maxlength=5 (change)="onFilterChange()">
+ <option value=''></option>
+ <option value='male'>Men only</option>
+ <option value='female'>Women only</option>
+ </select>
+</div>
diff --git a/demo/angular-grid.ts b/demo/angular-grid.ts
new file mode 100644
index 0000000..e6488fb
--- /dev/null
+++ b/demo/angular-grid.ts
@@ -0,0 +1,48 @@
+import {Component} from 'angular2/core';
+
+@Component({
+ selector: 'angular-grid',
+ templateUrl: 'angular-grid.html'
+})
+export class AngularGrid {
+ selected: Object;
+ grid = document.querySelector('angular-grid vaadin-grid');
+ columns = [
+ {name: "user.picture.thumbnail", width: 100, renderer: this.pictureRenderer},
+ {name: "user.gender"},
+ {name: "user.name.first"},
+ {name: "user.name.last"},
+ {name: "user.email"},
+ ];
+
+ constructor() {
+ // Once grid is ready, add a new header row with the gender select in it
+ this.grid.then(() =>
+ this.grid.header.addRow(1, ['', document.querySelector('angular-grid select')])
+ );
+ }
+
+ pictureRenderer(cell) {
+ cell.element.innerHTML = '<img style="width: 30px" src="' + cell.data + '" />';
+ }
+
+ items(params, callback) {
+ var gender = document.querySelector('angular-grid select');
+ var url = 'https://randomuser.me/api?nat=us&gender='
+ + gender.value + '&results=' + params.count;
+ getJSON(url, data =>
+ callback(data ? data.results : [], gender.value ? 50 : 100)
+ }
+
+ onSelect() {
+ this.selected = undefined;
+ const selectedIndex = this.grid.selection.selected()[0];
+ this.grid.getItem(selectedIndex, (err, data) => this.selected = data);
+ }
+
+ onFilterChange() {
+ this.grid.async(() => this.grid.refreshItems());
+ this.grid.scrollToStart();
+ }
+
+}
diff --git a/demo/angular2.html b/demo/angular2.html
new file mode 100644
index 0000000..a254f8b
--- /dev/null
+++ b/demo/angular2.html
@@ -0,0 +1,109 @@
+<!doctype html>
+<!--
+title: Angular 2
+order: 2
+layout: page
+-->
+
+<html>
+
+<head>
+ <title>vaadin-core-elements Code Examples - Angular 2 Integration</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+ <link rel="import" href="common.html">
+
+</head>
+
+<body unresolved>
+ <h1>vaadin-core-elements</h1>
+
+ <section>
+ <h3>Angular2 (beta1) Integration</h3>
+ <p>Click a row to see an enlarged user image.</p>
+ <code-example>
+ <iframe src="angular-demo-embed.html" style="width: 100%; height: 600px; border: none; display: none;"></iframe>
+ <style>
+ iframe ~ [demo] {
+ display: none !important;
+ }
+ </style>
+ <div demo>
+ <vaadin-grid [columns]="columns" [items]="items" (selected-items-changed)="onSelect()">
+ </vaadin-grid>
+
+ <img *ngIf="selected" class="user-image" src="{{selected.user.picture.large}}">
+
+ <div style="display: none">
+ <select maxlength=5 (change)="onFilterChange()">
+ <option value=''></option>
+ <option value='male'>Men only</option>
+ <option value='female'>Women only</option>
+ </select>
+ </div>
+ </div>
+ <code>
+ /*
+ // code
+ // Component file: angular-grid.ts
+ import {Component} from 'angular2/core';
+
+ @Component({
+ selector: 'angular-grid',
+ templateUrl: 'angular-grid.html'
+ })
+ export class AngularGrid {
+ selected: Object;
+ grid = document.querySelector('angular-grid vaadin-grid');
+ columns = [
+ {name: "user.picture.thumbnail", width: 100, renderer: this.pictureRenderer},
+ {name: "user.gender"},
+ {name: "user.name.first"},
+ {name: "user.name.last"},
+ {name: "user.email"},
+ ];
+
+ constructor() {
+ // Once grid is ready, add a new header row with the gender select in it
+ this.grid.then(() =>
+ this.grid.header.addRow(1, ['', document.querySelector('angular-grid select')])
+ );
+ }
+
+ pictureRenderer(cell) {
+ cell.element.innerHTML = '<img style="width: 30px" src="' + cell.data + '" />';
+ }
+
+ items(params, callback) {
+ var gender = document.querySelector('angular-grid select');
+ var url = 'https://randomuser.me/api?nat=us&gender='
+ + gender.value + '&results=' + params.count;
+ getJSON(url, data =>
+ callback(data ? data.results : [], gender.value ? 50 : 100)
+ }
+
+ onSelect() {
+ this.selected = undefined;
+ const selectedIndex = this.grid.selection.selected()[0];
+ this.grid.getItem(selectedIndex, (err, data) => this.selected = data);
+ }
+
+ onFilterChange() {
+ this.grid.refreshItems();
+ this.grid.scrollToStart();
+ }
+
+ }
+ // end-code
+ */
+
+ document.querySelector('iframe').style.display = 'inline';
+ document.body.removeAttribute('unresolved');
+ </code>
+ </code-example>
+ </section>
+
+</body>
+</html>
diff --git a/demo/common.html b/demo/common.html
new file mode 100644
index 0000000..1bdf32f
--- /dev/null
+++ b/demo/common.html
@@ -0,0 +1,32 @@
+<link rel="stylesheet" href="../../elements-demo-resources/demo.css">
+<script src="../../elements-demo-resources/ga.js"></script>
+
+
+<script>
+
+ window.localUserUrl = 'users.json';
+ var bowerComponents = '../../';
+
+ window.xCodeExampleSourceHead =
+ ' <script src="https://cdn.vaadin.com/vaadin-core-elements/latest/webcomponentsjs/webcomponents-lite.js"><\/script>\n' +
+ ' <link href="https://cdn.vaadin.com/vaadin-core-elements/latest/vaadin-core-elements/vaadin-core-elements.html" rel="import">\n';
+
+ if (!window.Polymer) {
+ var link = document.querySelector('link[href$="common.html"]');
+ var baseCommon = link.href.replace(/common.html/, '');
+ var base = baseCommon + bowerComponents;
+
+ var polymerImport = document.createElement('link');
+ polymerImport.rel = 'import';
+ polymerImport.href = base + 'polymer/polymer.html';
+
+ polymerImport.onload = function() {
+ window.localUserUrl = baseCommon + 'users.json';
+ Polymer.Base.importHref(base + 'code-example/code-example.html');
+ Polymer.Base.importHref(base + 'table-of-contents/table-of-contents.html');
+ Polymer.Base.importHref(base + 'vaadin-grid/vaadin-grid.html');
+ Polymer.Base.importHref(base + 'elements-demo-resources/getjson.html');
+ };
+ document.head.appendChild(polymerImport);
+ }
+</script>
diff --git a/demo/js_dependencies/JSXTransformer.js b/demo/js_dependencies/JSXTransformer.js
new file mode 100644
index 0000000..63608d4
--- /dev/null
+++ b/demo/js_dependencies/JSXTransformer.js
@@ -0,0 +1,15924 @@
+/**
+ * JSXTransformer v0.13.0
+ */
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.JSXTransformer = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+/* jshint browser: true */
+/* jslint evil: true */
+/*eslint-disable no-eval */
+/*eslint-disable block-scoped-var */
+
+'use strict';
+
+var ReactTools = _dereq_('../main');
+var inlineSourceMap = _dereq_('./inline-source-map');
+
+var headEl;
+var dummyAnchor;
+var inlineScriptCount = 0;
+
+// The source-map library relies on Object.defineProperty, but IE8 doesn't
+// support it fully even with es5-sham. Indeed, es5-sham's defineProperty
+// throws when Object.prototype.__defineGetter__ is missing, so we skip building
+// the source map in that case.
+var supportsAccessors = Object.prototype.hasOwnProperty('__defineGetter__');
+
+/**
+ * Run provided code through jstransform.
+ *
+ * @param {string} source Original source code
+ * @param {object?} options Options to pass to jstransform
+ * @return {object} object as returned from jstransform
+ */
+function transformReact(source, options) {
+ options = options || {};
+
+ // Force the sourcemaps option manually. We don't want to use it if it will
+ // break (see above note about supportsAccessors). We'll only override the
+ // value here if sourceMap was specified and is truthy. This guarantees that
+ // we won't override any user intent (since this method is exposed publicly).
+ if (options.sourceMap) {
+ options.sourceMap = supportsAccessors;
+ }
+
+ // Otherwise just pass all options straight through to react-tools.
+ return ReactTools.transformWithDetails(source, options);
+}
+
+/**
+ * Eval provided source after transforming it.
+ *
+ * @param {string} source Original source code
+ * @param {object?} options Options to pass to jstransform
+ */
+function exec(source, options) {
+ return eval(transformReact(source, options).code);
+}
+
+/**
+ * This method returns a nicely formated line of code pointing to the exact
+ * location of the error `e`. The line is limited in size so big lines of code
+ * are also shown in a readable way.
+ *
+ * Example:
+ * ... x', overflow:'scroll'}} id={} onScroll={this.scroll} class=" ...
+ * ^
+ *
+ * @param {string} code The full string of code
+ * @param {Error} e The error being thrown
+ * @return {string} formatted message
+ * @internal
+ */
+function createSourceCodeErrorMessage(code, e) {
+ var sourceLines = code.split('\n');
+ // e.lineNumber is non-standard so we can't depend on its availability. If
+ // we're in a browser where it isn't supported, don't even bother trying to
+ // format anything. We may also hit a case where the line number is reported
+ // incorrectly and is outside the bounds of the actual code. Handle that too.
+ if (!e.lineNumber || e.lineNumber > sourceLines.length) {
+ return '';
+ }
+ var erroneousLine = sourceLines[e.lineNumber - 1];
+
+ // Removes any leading indenting spaces and gets the number of
+ // chars indenting the `erroneousLine`
+ var indentation = 0;
+ erroneousLine = erroneousLine.replace(/^\s+/, function(leadingSpaces) {
+ indentation = leadingSpaces.length;
+ return '';
+ });
+
+ // Defines the number of characters that are going to show
+ // before and after the erroneous code
+ var LIMIT = 30;
+ var errorColumn = e.column - indentation;
+
+ if (errorColumn > LIMIT) {
+ erroneousLine = '... ' + erroneousLine.slice(errorColumn - LIMIT);
+ errorColumn = 4 + LIMIT;
+ }
+ if (erroneousLine.length - errorColumn > LIMIT) {
+ erroneousLine = erroneousLine.slice(0, errorColumn + LIMIT) + ' ...';
+ }
+ var message = '\n\n' + erroneousLine + '\n';
+ message += new Array(errorColumn - 1).join(' ') + '^';
+ return message;
+}
+
+/**
+ * Actually transform the code.
+ *
+ * @param {string} code
+ * @param {string?} url
+ * @param {object?} options
+ * @return {string} The transformed code.
+ * @internal
+ */
+function transformCode(code, url, options) {
+ try {
+ var transformed = transformReact(code, options);
+ } catch(e) {
+ e.message += '\n at ';
+ if (url) {
+ if ('fileName' in e) {
+ // We set `fileName` if it's supported by this error object and
+ // a `url` was provided.
+ // The error will correctly point to `url` in Firefox.
+ e.fileName = url;
+ }
+ e.message += url + ':' + e.lineNumber + ':' + e.columnNumber;
+ } else {
+ e.message += location.href;
+ }
+ e.message += createSourceCodeErrorMessage(code, e);
+ throw e;
+ }
+
+ if (!transformed.sourceMap) {
+ return transformed.code;
+ }
+
+ var source;
+ if (url == null) {
+ source = 'Inline JSX script';
+ inlineScriptCount++;
+ if (inlineScriptCount > 1) {
+ source += ' (' + inlineScriptCount + ')';
+ }
+ } else if (dummyAnchor) {
+ // Firefox has problems when the sourcemap source is a proper URL with a
+ // protocol and hostname, so use the pathname. We could use just the
+ // filename, but hopefully using the full path will prevent potential
+ // issues where the same filename exists in multiple directories.
+ dummyAnchor.href = url;
+ source = dummyAnchor.pathname.substr(1);
+ }
+
+ return (
+ transformed.code +
+ '\n' +
+ inlineSourceMap(transformed.sourceMap, code, source)
+ );
+}
+
+
+/**
+ * Appends a script element at the end of the <head> with the content of code,
+ * after transforming it.
+ *
+ * @param {string} code The original source code
+ * @param {string?} url Where the code came from. null if inline
+ * @param {object?} options Options to pass to jstransform
+ * @internal
+ */
+function run(code, url, options) {
+ var scriptEl = document.createElement('script');
+ scriptEl.text = transformCode(code, url, options);
+ headEl.appendChild(scriptEl);
+}
+
+/**
+ * Load script from the provided url and pass the content to the callback.
+ *
+ * @param {string} url The location of the script src
+ * @param {function} callback Function to call with the content of url
+ * @internal
+ */
+function load(url, successCallback, errorCallback) {
+ var xhr;
+ xhr = window.ActiveXObject ? new window.ActiveXObject('Microsoft.XMLHTTP')
+ : new XMLHttpRequest();
+
+ // async, however scripts will be executed in the order they are in the
+ // DOM to mirror normal script loading.
+ xhr.open('GET', url, true);
+ if ('overrideMimeType' in xhr) {
+ xhr.overrideMimeType('text/plain');
+ }
+ xhr.onreadystatechange = function() {
+ if (xhr.readyState === 4) {
+ if (xhr.status === 0 || xhr.status === 200) {
+ successCallback(xhr.responseText);
+ } else {
+ errorCallback();
+ throw new Error('Could not load ' + url);
+ }
+ }
+ };
+ return xhr.send(null);
+}
+
+/**
+ * Loop over provided script tags and get the content, via innerHTML if an
+ * inline script, or by using XHR. Transforms are applied if needed. The scripts
+ * are executed in the order they are found on the page.
+ *
+ * @param {array} scripts The <script> elements to load and run.
+ * @internal
+ */
+function loadScripts(scripts) {
+ var result = [];
+ var count = scripts.length;
+
+ function check() {
+ var script, i;
+
+ for (i = 0; i < count; i++) {
+ script = result[i];
+
+ if (script.loaded && !script.executed) {
+ script.executed = true;
+ run(script.content, script.url, script.options);
+ } else if (!script.loaded && !script.error && !script.async) {
+ break;
+ }
+ }
+ }
+
+ scripts.forEach(function(script, i) {
+ var options = {
+ sourceMap: true
+ };
+ if (/;harmony=true(;|$)/.test(script.type)) {
+ options.harmony = true;
+ }
+ if (/;stripTypes=true(;|$)/.test(script.type)) {
+ options.stripTypes = true;
+ }
+
+ // script.async is always true for non-javascript script tags
+ var async = script.hasAttribute('async');
+
+ if (script.src) {
+ result[i] = {
+ async: async,
+ error: false,
+ executed: false,
+ content: null,
+ loaded: false,
+ url: script.src,
+ options: options
+ };
+
+ load(script.src, function(content) {
+ result[i].loaded = true;
+ result[i].content = content;
+ check();
+ }, function() {
+ result[i].error = true;
+ check();
+ });
+ } else {
+ result[i] = {
+ async: async,
+ error: false,
+ executed: false,
+ content: script.innerHTML,
+ loaded: true,
+ url: null,
+ options: options
+ };
+ }
+ });
+
+ check();
+}
+
+/**
+ * Find and run all script tags with type="text/jsx".
+ *
+ * @internal
+ */
+function runScripts() {
+ var scripts = document.getElementsByTagName('script');
+
+ // Array.prototype.slice cannot be used on NodeList on IE8
+ var jsxScripts = [];
+ for (var i = 0; i < scripts.length; i++) {
+ if (/^text\/jsx(;|$)/.test(scripts.item(i).type)) {
+ jsxScripts.push(scripts.item(i));
+ }
+ }
+
+ if (jsxScripts.length < 1) {
+ return;
+ }
+
+ console.warn(
+ 'You are using the in-browser JSX transformer. Be sure to precompile ' +
+ 'your JSX for production - ' +
+ 'http://facebook.github.io/react/docs/tooling-integration.html#jsx'
+ );
+
+ loadScripts(jsxScripts);
+}
+
+// Listen for load event if we're in a browser and then kick off finding and
+// running of scripts.
+if (typeof window !== 'undefined' && window !== null) {
+ headEl = document.getElementsByTagName('head')[0];
+ dummyAnchor = document.createElement('a');
+
+ if (window.addEventListener) {
+ window.addEventListener('DOMContentLoaded', runScripts, false);
+ } else {
+ window.attachEvent('onload', runScripts);
+ }
+}
+
+module.exports = {
+ transform: transformReact,
+ exec: exec
+};
+
+},{"../main":2,"./inline-source-map":41}],2:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+'use strict';
+/*eslint-disable no-undef*/
+var visitors = _dereq_('./vendor/fbtransform/visitors');
+var transform = _dereq_('jstransform').transform;
+var typesSyntax = _dereq_('jstransform/visitors/type-syntax');
+var inlineSourceMap = _dereq_('./vendor/inline-source-map');
+
+module.exports = {
+ transform: function(input, options) {
+ options = processOptions(options);
+ var output = innerTransform(input, options);
+ var result = output.code;
+ if (options.sourceMap) {
+ var map = inlineSourceMap(
+ output.sourceMap,
+ input,
+ options.filename
+ );
+ result += '\n' + map;
+ }
+ return result;
+ },
+ transformWithDetails: function(input, options) {
+ options = processOptions(options);
+ var output = innerTransform(input, options);
+ var result = {};
+ result.code = output.code;
+ if (options.sourceMap) {
+ result.sourceMap = output.sourceMap.toJSON();
+ }
+ if (options.filename) {
+ result.sourceMap.sources = [options.filename];
+ }
+ return result;
+ }
+};
+
+/**
+ * Only copy the values that we need. We'll do some preprocessing to account for
+ * converting command line flags to options that jstransform can actually use.
+ */
+function processOptions(opts) {
+ opts = opts || {};
+ var options = {};
+
+ options.harmony = opts.harmony;
+ options.stripTypes = opts.stripTypes;
+ options.sourceMap = opts.sourceMap;
+ options.filename = opts.sourceFilename;
+
+ if (opts.es6module) {
+ options.sourceType = 'module';
+ }
+ if (opts.nonStrictEs6Module) {
+ options.sourceType = 'nonStrict6Module';
+ }
+
+ // Instead of doing any fancy validation, only look for 'es3'. If we have
+ // that, then use it. Otherwise use 'es5'.
+ options.es3 = opts.target === 'es3';
+ options.es5 = !options.es3;
+
+ return options;
+}
+
+function innerTransform(input, options) {
+ var visitorSets = ['react'];
+ if (options.harmony) {
+ visitorSets.push('harmony');
+ }
+
+ if (options.es3) {
+ visitorSets.push('es3');
+ }
+
+ if (options.stripTypes) {
+ // Stripping types needs to happen before the other transforms
+ // unfortunately, due to bad interactions. For example,
+ // es6-rest-param-visitors conflict with stripping rest param type
+ // annotation
+ input = transform(typesSyntax.visitorList, input, options).code;
+ }
+
+ var visitorList = visitors.getVisitorsBySet(visitorSets);
+ return transform(visitorList, input, options);
+}
+
+},{"./vendor/fbtransform/visitors":40,"./vendor/inline-source-map":41,"jstransform":22,"jstransform/visitors/type-syntax":36}],3:[function(_dereq_,module,exports){
+/*!
+ * The buffer module from node.js, for the browser.
+ *
+ * @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
+ * @license MIT
+ */
+
+var base64 = _dereq_('base64-js')
+var ieee754 = _dereq_('ieee754')
+var isArray = _dereq_('is-array')
+
+exports.Buffer = Buffer
+exports.SlowBuffer = SlowBuffer
+exports.INSPECT_MAX_BYTES = 50
+Buffer.poolSize = 8192 // not used by this implementation
+
+var kMaxLength = 0x3fffffff
+var rootParent = {}
+
+/**
+ * If `Buffer.TYPED_ARRAY_SUPPORT`:
+ * === true Use Uint8Array implementation (fastest)
+ * === false Use Object implementation (most compatible, even IE6)
+ *
+ * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
+ * Opera 11.6+, iOS 4.2+.
+ *
+ * Note:
+ *
+ * - Implementation must support adding new properties to `Uint8Array` instances.
+ * Firefox 4-29 lacked support, fixed in Firefox 30+.
+ * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
+ *
+ * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
+ *
+ * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
+ * incorrect length in some situations.
+ *
+ * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they will
+ * get the Object implementation, which is slower but will work correctly.
+ */
+Buffer.TYPED_ARRAY_SUPPORT = (function () {
+ try {
+ var buf = new ArrayBuffer(0)
+ var arr = new Uint8Array(buf)
+ arr.foo = function () { return 42 }
+ return arr.foo() === 42 && // typed array instances can be augmented
+ typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
+ new Uint8Array(1).subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
+ } catch (e) {
+ return false
+ }
+})()
+
+/**
+ * Class: Buffer
+ * =============
+ *
+ * The Buffer constructor returns instances of `Uint8Array` that are augmented
+ * with function properties for all the node `Buffer` API functions. We use
+ * `Uint8Array` so that square bracket notation works as expected -- it returns
+ * a single octet.
+ *
+ * By augmenting the instances, we can avoid modifying the `Uint8Array`
+ * prototype.
+ */
+function Buffer (subject, encoding, noZero) {
+ if (!(this instanceof Buffer)) return new Buffer(subject, encoding, noZero)
+
+ var type = typeof subject
+ var length
+
+ if (type === 'number') {
+ length = +subject
+ } else if (type === 'string') {
+ length = Buffer.byteLength(subject, encoding)
+ } else if (type === 'object' && subject !== null) {
+ // assume object is array-like
+ if (subject.type === 'Buffer' && isArray(subject.data)) subject = subject.data
+ length = +subject.length
+ } else {
+ throw new TypeError('must start with number, buffer, array or string')
+ }
+
+ if (length > kMaxLength) {
+ throw new RangeError('Attempt to allocate Buffer larger than maximum size: 0x' +
+ kMaxLength.toString(16) + ' bytes')
+ }
+
+ if (length < 0) length = 0
+ else length >>>= 0 // coerce to uint32
+
+ var self = this
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ // Preferred: Return an augmented `Uint8Array` instance for best performance
+ /*eslint-disable consistent-this */
+ self = Buffer._augment(new Uint8Array(length))
+ /*eslint-enable consistent-this */
+ } else {
+ // Fallback: Return THIS instance of Buffer (created by `new`)
+ self.length = length
+ self._isBuffer = true
+ }
+
+ var i
+ if (Buffer.TYPED_ARRAY_SUPPORT && typeof subject.byteLength === 'number') {
+ // Speed optimization -- use set if we're copying from a typed array
+ self._set(subject)
+ } else if (isArrayish(subject)) {
+ // Treat array-ish objects as a byte array
+ if (Buffer.isBuffer(subject)) {
+ for (i = 0; i < length; i++) {
+ self[i] = subject.readUInt8(i)
+ }
+ } else {
+ for (i = 0; i < length; i++) {
+ self[i] = ((subject[i] % 256) + 256) % 256
+ }
+ }
+ } else if (type === 'string') {
+ self.write(subject, 0, encoding)
+ } else if (type === 'number' && !Buffer.TYPED_ARRAY_SUPPORT && !noZero) {
+ for (i = 0; i < length; i++) {
+ self[i] = 0
+ }
+ }
+
+ if (length > 0 && length <= Buffer.poolSize) self.parent = rootParent
+
+ return self
+}
+
+function SlowBuffer (subject, encoding, noZero) {
+ if (!(this instanceof SlowBuffer)) return new SlowBuffer(subject, encoding, noZero)
+
+ var buf = new Buffer(subject, encoding, noZero)
+ delete buf.parent
+ return buf
+}
+
+Buffer.isBuffer = function isBuffer (b) {
+ return !!(b != null && b._isBuffer)
+}
+
+Buffer.compare = function compare (a, b) {
+ if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
+ throw new TypeError('Arguments must be Buffers')
+ }
+
+ if (a === b) return 0
+
+ var x = a.length
+ var y = b.length
+ for (var i = 0, len = Math.min(x, y); i < len && a[i] === b[i]; i++) {}
+ if (i !== len) {
+ x = a[i]
+ y = b[i]
+ }
+ if (x < y) return -1
+ if (y < x) return 1
+ return 0
+}
+
+Buffer.isEncoding = function isEncoding (encoding) {
+ switch (String(encoding).toLowerCase()) {
+ case 'hex':
+ case 'utf8':
+ case 'utf-8':
+ case 'ascii':
+ case 'binary':
+ case 'base64':
+ case 'raw':
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return true
+ default:
+ return false
+ }
+}
+
+Buffer.concat = function concat (list, totalLength) {
+ if (!isArray(list)) throw new TypeError('Usage: Buffer.concat(list[, length])')
+
+ if (list.length === 0) {
+ return new Buffer(0)
+ } else if (list.length === 1) {
+ return list[0]
+ }
+
+ var i
+ if (totalLength === undefined) {
+ totalLength = 0
+ for (i = 0; i < list.length; i++) {
+ totalLength += list[i].length
+ }
+ }
+
+ var buf = new Buffer(totalLength)
+ var pos = 0
+ for (i = 0; i < list.length; i++) {
+ var item = list[i]
+ item.copy(buf, pos)
+ pos += item.length
+ }
+ return buf
+}
+
+Buffer.byteLength = function byteLength (str, encoding) {
+ var ret
+ str = str + ''
+ switch (encoding || 'utf8') {
+ case 'ascii':
+ case 'binary':
+ case 'raw':
+ ret = str.length
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = str.length * 2
+ break
+ case 'hex':
+ ret = str.length >>> 1
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8ToBytes(str).length
+ break
+ case 'base64':
+ ret = base64ToBytes(str).length
+ break
+ default:
+ ret = str.length
+ }
+ return ret
+}
+
+// pre-set for values that may exist in the future
+Buffer.prototype.length = undefined
+Buffer.prototype.parent = undefined
+
+// toString(encoding, start=0, end=buffer.length)
+Buffer.prototype.toString = function toString (encoding, start, end) {
+ var loweredCase = false
+
+ start = start >>> 0
+ end = end === undefined || end === Infinity ? this.length : end >>> 0
+
+ if (!encoding) encoding = 'utf8'
+ if (start < 0) start = 0
+ if (end > this.length) end = this.length
+ if (end <= start) return ''
+
+ while (true) {
+ switch (encoding) {
+ case 'hex':
+ return hexSlice(this, start, end)
+
+ case 'utf8':
+ case 'utf-8':
+ return utf8Slice(this, start, end)
+
+ case 'ascii':
+ return asciiSlice(this, start, end)
+
+ case 'binary':
+ return binarySlice(this, start, end)
+
+ case 'base64':
+ return base64Slice(this, start, end)
+
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ return utf16leSlice(this, start, end)
+
+ default:
+ if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
+ encoding = (encoding + '').toLowerCase()
+ loweredCase = true
+ }
+ }
+}
+
+Buffer.prototype.equals = function equals (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return true
+ return Buffer.compare(this, b) === 0
+}
+
+Buffer.prototype.inspect = function inspect () {
+ var str = ''
+ var max = exports.INSPECT_MAX_BYTES
+ if (this.length > 0) {
+ str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
+ if (this.length > max) str += ' ... '
+ }
+ return '<Buffer ' + str + '>'
+}
+
+Buffer.prototype.compare = function compare (b) {
+ if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
+ if (this === b) return 0
+ return Buffer.compare(this, b)
+}
+
+Buffer.prototype.indexOf = function indexOf (val, byteOffset) {
+ if (byteOffset > 0x7fffffff) byteOffset = 0x7fffffff
+ else if (byteOffset < -0x80000000) byteOffset = -0x80000000
+ byteOffset >>= 0
+
+ if (this.length === 0) return -1
+ if (byteOffset >= this.length) return -1
+
+ // Negative offsets start from the end of the buffer
+ if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
+
+ if (typeof val === 'string') {
+ if (val.length === 0) return -1 // special case: looking for empty string always fails
+ return String.prototype.indexOf.call(this, val, byteOffset)
+ }
+ if (Buffer.isBuffer(val)) {
+ return arrayIndexOf(this, val, byteOffset)
+ }
+ if (typeof val === 'number') {
+ if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
+ return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
+ }
+ return arrayIndexOf(this, [ val ], byteOffset)
+ }
+
+ function arrayIndexOf (arr, val, byteOffset) {
+ var foundIndex = -1
+ for (var i = 0; byteOffset + i < arr.length; i++) {
+ if (arr[byteOffset + i] === val[foundIndex === -1 ? 0 : i - foundIndex]) {
+ if (foundIndex === -1) foundIndex = i
+ if (i - foundIndex + 1 === val.length) return byteOffset + foundIndex
+ } else {
+ foundIndex = -1
+ }
+ }
+ return -1
+ }
+
+ throw new TypeError('val must be string, number or Buffer')
+}
+
+// `get` will be removed in Node 0.13+
+Buffer.prototype.get = function get (offset) {
+ console.log('.get() is deprecated. Access using array indexes instead.')
+ return this.readUInt8(offset)
+}
+
+// `set` will be removed in Node 0.13+
+Buffer.prototype.set = function set (v, offset) {
+ console.log('.set() is deprecated. Access using array indexes instead.')
+ return this.writeUInt8(v, offset)
+}
+
+function hexWrite (buf, string, offset, length) {
+ offset = Number(offset) || 0
+ var remaining = buf.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+
+ // must be an even number of digits
+ var strLen = string.length
+ if (strLen % 2 !== 0) throw new Error('Invalid hex string')
+
+ if (length > strLen / 2) {
+ length = strLen / 2
+ }
+ for (var i = 0; i < length; i++) {
+ var parsed = parseInt(string.substr(i * 2, 2), 16)
+ if (isNaN(parsed)) throw new Error('Invalid hex string')
+ buf[offset + i] = parsed
+ }
+ return i
+}
+
+function utf8Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
+ return charsWritten
+}
+
+function asciiWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(asciiToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function binaryWrite (buf, string, offset, length) {
+ return asciiWrite(buf, string, offset, length)
+}
+
+function base64Write (buf, string, offset, length) {
+ var charsWritten = blitBuffer(base64ToBytes(string), buf, offset, length)
+ return charsWritten
+}
+
+function utf16leWrite (buf, string, offset, length) {
+ var charsWritten = blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
+ return charsWritten
+}
+
+Buffer.prototype.write = function write (string, offset, length, encoding) {
+ // Support both (string, offset, length, encoding)
+ // and the legacy (string, encoding, offset, length)
+ if (isFinite(offset)) {
+ if (!isFinite(length)) {
+ encoding = length
+ length = undefined
+ }
+ } else { // legacy
+ var swap = encoding
+ encoding = offset
+ offset = length
+ length = swap
+ }
+
+ offset = Number(offset) || 0
+
+ if (length < 0 || offset < 0 || offset > this.length) {
+ throw new RangeError('attempt to write outside buffer bounds')
+ }
+
+ var remaining = this.length - offset
+ if (!length) {
+ length = remaining
+ } else {
+ length = Number(length)
+ if (length > remaining) {
+ length = remaining
+ }
+ }
+ encoding = String(encoding || 'utf8').toLowerCase()
+
+ var ret
+ switch (encoding) {
+ case 'hex':
+ ret = hexWrite(this, string, offset, length)
+ break
+ case 'utf8':
+ case 'utf-8':
+ ret = utf8Write(this, string, offset, length)
+ break
+ case 'ascii':
+ ret = asciiWrite(this, string, offset, length)
+ break
+ case 'binary':
+ ret = binaryWrite(this, string, offset, length)
+ break
+ case 'base64':
+ ret = base64Write(this, string, offset, length)
+ break
+ case 'ucs2':
+ case 'ucs-2':
+ case 'utf16le':
+ case 'utf-16le':
+ ret = utf16leWrite(this, string, offset, length)
+ break
+ default:
+ throw new TypeError('Unknown encoding: ' + encoding)
+ }
+ return ret
+}
+
+Buffer.prototype.toJSON = function toJSON () {
+ return {
+ type: 'Buffer',
+ data: Array.prototype.slice.call(this._arr || this, 0)
+ }
+}
+
+function base64Slice (buf, start, end) {
+ if (start === 0 && end === buf.length) {
+ return base64.fromByteArray(buf)
+ } else {
+ return base64.fromByteArray(buf.slice(start, end))
+ }
+}
+
+function utf8Slice (buf, start, end) {
+ var res = ''
+ var tmp = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ if (buf[i] <= 0x7F) {
+ res += decodeUtf8Char(tmp) + String.fromCharCode(buf[i])
+ tmp = ''
+ } else {
+ tmp += '%' + buf[i].toString(16)
+ }
+ }
+
+ return res + decodeUtf8Char(tmp)
+}
+
+function asciiSlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i] & 0x7F)
+ }
+ return ret
+}
+
+function binarySlice (buf, start, end) {
+ var ret = ''
+ end = Math.min(buf.length, end)
+
+ for (var i = start; i < end; i++) {
+ ret += String.fromCharCode(buf[i])
+ }
+ return ret
+}
+
+function hexSlice (buf, start, end) {
+ var len = buf.length
+
+ if (!start || start < 0) start = 0
+ if (!end || end < 0 || end > len) end = len
+
+ var out = ''
+ for (var i = start; i < end; i++) {
+ out += toHex(buf[i])
+ }
+ return out
+}
+
+function utf16leSlice (buf, start, end) {
+ var bytes = buf.slice(start, end)
+ var res = ''
+ for (var i = 0; i < bytes.length; i += 2) {
+ res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
+ }
+ return res
+}
+
+Buffer.prototype.slice = function slice (start, end) {
+ var len = this.length
+ start = ~~start
+ end = end === undefined ? len : ~~end
+
+ if (start < 0) {
+ start += len
+ if (start < 0) start = 0
+ } else if (start > len) {
+ start = len
+ }
+
+ if (end < 0) {
+ end += len
+ if (end < 0) end = 0
+ } else if (end > len) {
+ end = len
+ }
+
+ if (end < start) end = start
+
+ var newBuf
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ newBuf = Buffer._augment(this.subarray(start, end))
+ } else {
+ var sliceLen = end - start
+ newBuf = new Buffer(sliceLen, undefined, true)
+ for (var i = 0; i < sliceLen; i++) {
+ newBuf[i] = this[i + start]
+ }
+ }
+
+ if (newBuf.length) newBuf.parent = this.parent || this
+
+ return newBuf
+}
+
+/*
+ * Need to make sure that buffer isn't trying to write out of bounds.
+ */
+function checkOffset (offset, ext, length) {
+ if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
+ if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
+}
+
+Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) {
+ checkOffset(offset, byteLength, this.length)
+ }
+
+ var val = this[offset + --byteLength]
+ var mul = 1
+ while (byteLength > 0 && (mul *= 0x100)) {
+ val += this[offset + --byteLength] * mul
+ }
+
+ return val
+}
+
+Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ return this[offset]
+}
+
+Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return this[offset] | (this[offset + 1] << 8)
+}
+
+Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ return (this[offset] << 8) | this[offset + 1]
+}
+
+Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return ((this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16)) +
+ (this[offset + 3] * 0x1000000)
+}
+
+Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] * 0x1000000) +
+ ((this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ this[offset + 3])
+}
+
+Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var val = this[offset]
+ var mul = 1
+ var i = 0
+ while (++i < byteLength && (mul *= 0x100)) {
+ val += this[offset + i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkOffset(offset, byteLength, this.length)
+
+ var i = byteLength
+ var mul = 1
+ var val = this[offset + --i]
+ while (i > 0 && (mul *= 0x100)) {
+ val += this[offset + --i] * mul
+ }
+ mul *= 0x80
+
+ if (val >= mul) val -= Math.pow(2, 8 * byteLength)
+
+ return val
+}
+
+Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 1, this.length)
+ if (!(this[offset] & 0x80)) return (this[offset])
+ return ((0xff - this[offset] + 1) * -1)
+}
+
+Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset] | (this[offset + 1] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 2, this.length)
+ var val = this[offset + 1] | (this[offset] << 8)
+ return (val & 0x8000) ? val | 0xFFFF0000 : val
+}
+
+Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset]) |
+ (this[offset + 1] << 8) |
+ (this[offset + 2] << 16) |
+ (this[offset + 3] << 24)
+}
+
+Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+
+ return (this[offset] << 24) |
+ (this[offset + 1] << 16) |
+ (this[offset + 2] << 8) |
+ (this[offset + 3])
+}
+
+Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, true, 23, 4)
+}
+
+Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 4, this.length)
+ return ieee754.read(this, offset, false, 23, 4)
+}
+
+Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, true, 52, 8)
+}
+
+Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
+ if (!noAssert) checkOffset(offset, 8, this.length)
+ return ieee754.read(this, offset, false, 52, 8)
+}
+
+function checkInt (buf, value, offset, ext, max, min) {
+ if (!Buffer.isBuffer(buf)) throw new TypeError('buffer must be a Buffer instance')
+ if (value > max || value < min) throw new RangeError('value is out of bounds')
+ if (offset + ext > buf.length) throw new RangeError('index out of range')
+}
+
+Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+
+ var mul = 1
+ var i = 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) >>> 0 & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ byteLength = byteLength >>> 0
+ if (!noAssert) checkInt(this, value, offset, byteLength, Math.pow(2, 8 * byteLength), 0)
+
+ var i = byteLength - 1
+ var mul = 1
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = (value / mul) >>> 0 & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
+ if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
+ this[offset] = value
+ return offset + 1
+}
+
+function objectWriteUInt16 (buf, value, offset, littleEndian) {
+ if (value < 0) value = 0xffff + value + 1
+ for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
+ buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
+ (littleEndian ? i : 1 - i) * 8
+ }
+}
+
+Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = value
+ this[offset + 1] = (value >>> 8)
+ } else {
+ objectWriteUInt16(this, value, offset, true)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 8)
+ this[offset + 1] = value
+ } else {
+ objectWriteUInt16(this, value, offset, false)
+ }
+ return offset + 2
+}
+
+function objectWriteUInt32 (buf, value, offset, littleEndian) {
+ if (value < 0) value = 0xffffffff + value + 1
+ for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
+ buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
+ }
+}
+
+Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset + 3] = (value >>> 24)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 1] = (value >>> 8)
+ this[offset] = value
+ } else {
+ objectWriteUInt32(this, value, offset, true)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = value
+ } else {
+ objectWriteUInt32(this, value, offset, false)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ checkInt(
+ this, value, offset, byteLength,
+ Math.pow(2, 8 * byteLength - 1) - 1,
+ -Math.pow(2, 8 * byteLength - 1)
+ )
+ }
+
+ var i = 0
+ var mul = 1
+ var sub = value < 0 ? 1 : 0
+ this[offset] = value & 0xFF
+ while (++i < byteLength && (mul *= 0x100)) {
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) {
+ checkInt(
+ this, value, offset, byteLength,
+ Math.pow(2, 8 * byteLength - 1) - 1,
+ -Math.pow(2, 8 * byteLength - 1)
+ )
+ }
+
+ var i = byteLength - 1
+ var mul = 1
+ var sub = value < 0 ? 1 : 0
+ this[offset + i] = value & 0xFF
+ while (--i >= 0 && (mul *= 0x100)) {
+ this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
+ }
+
+ return offset + byteLength
+}
+
+Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
+ if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
+ if (value < 0) value = 0xff + value + 1
+ this[offset] = value
+ return offset + 1
+}
+
+Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = value
+ this[offset + 1] = (value >>> 8)
+ } else {
+ objectWriteUInt16(this, value, offset, true)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 8)
+ this[offset + 1] = value
+ } else {
+ objectWriteUInt16(this, value, offset, false)
+ }
+ return offset + 2
+}
+
+Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = value
+ this[offset + 1] = (value >>> 8)
+ this[offset + 2] = (value >>> 16)
+ this[offset + 3] = (value >>> 24)
+ } else {
+ objectWriteUInt32(this, value, offset, true)
+ }
+ return offset + 4
+}
+
+Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
+ value = +value
+ offset = offset >>> 0
+ if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
+ if (value < 0) value = 0xffffffff + value + 1
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ this[offset] = (value >>> 24)
+ this[offset + 1] = (value >>> 16)
+ this[offset + 2] = (value >>> 8)
+ this[offset + 3] = value
+ } else {
+ objectWriteUInt32(this, value, offset, false)
+ }
+ return offset + 4
+}
+
+function checkIEEE754 (buf, value, offset, ext, max, min) {
+ if (value > max || value < min) throw new RangeError('value is out of bounds')
+ if (offset + ext > buf.length) throw new RangeError('index out of range')
+ if (offset < 0) throw new RangeError('index out of range')
+}
+
+function writeFloat (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 23, 4)
+ return offset + 4
+}
+
+Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
+ return writeFloat(this, value, offset, false, noAssert)
+}
+
+function writeDouble (buf, value, offset, littleEndian, noAssert) {
+ if (!noAssert) {
+ checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
+ }
+ ieee754.write(buf, value, offset, littleEndian, 52, 8)
+ return offset + 8
+}
+
+Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, true, noAssert)
+}
+
+Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
+ return writeDouble(this, value, offset, false, noAssert)
+}
+
+// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
+Buffer.prototype.copy = function copy (target, target_start, start, end) {
+ var self = this // source
+
+ if (!start) start = 0
+ if (!end && end !== 0) end = this.length
+ if (target_start >= target.length) target_start = target.length
+ if (!target_start) target_start = 0
+ if (end > 0 && end < start) end = start
+
+ // Copy 0 bytes; we're done
+ if (end === start) return 0
+ if (target.length === 0 || self.length === 0) return 0
+
+ // Fatal error conditions
+ if (target_start < 0) {
+ throw new RangeError('targetStart out of bounds')
+ }
+ if (start < 0 || start >= self.length) throw new RangeError('sourceStart out of bounds')
+ if (end < 0) throw new RangeError('sourceEnd out of bounds')
+
+ // Are we oob?
+ if (end > this.length) end = this.length
+ if (target.length - target_start < end - start) {
+ end = target.length - target_start + start
+ }
+
+ var len = end - start
+
+ if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
+ for (var i = 0; i < len; i++) {
+ target[i + target_start] = this[i + start]
+ }
+ } else {
+ target._set(this.subarray(start, start + len), target_start)
+ }
+
+ return len
+}
+
+// fill(value, start=0, end=buffer.length)
+Buffer.prototype.fill = function fill (value, start, end) {
+ if (!value) value = 0
+ if (!start) start = 0
+ if (!end) end = this.length
+
+ if (end < start) throw new RangeError('end < start')
+
+ // Fill 0 bytes; we're done
+ if (end === start) return
+ if (this.length === 0) return
+
+ if (start < 0 || start >= this.length) throw new RangeError('start out of bounds')
+ if (end < 0 || end > this.length) throw new RangeError('end out of bounds')
+
+ var i
+ if (typeof value === 'number') {
+ for (i = start; i < end; i++) {
+ this[i] = value
+ }
+ } else {
+ var bytes = utf8ToBytes(value.toString())
+ var len = bytes.length
+ for (i = start; i < end; i++) {
+ this[i] = bytes[i % len]
+ }
+ }
+
+ return this
+}
+
+/**
+ * Creates a new `ArrayBuffer` with the *copied* memory of the buffer instance.
+ * Added in Node 0.12. Only available in browsers that support ArrayBuffer.
+ */
+Buffer.prototype.toArrayBuffer = function toArrayBuffer () {
+ if (typeof Uint8Array !== 'undefined') {
+ if (Buffer.TYPED_ARRAY_SUPPORT) {
+ return (new Buffer(this)).buffer
+ } else {
+ var buf = new Uint8Array(this.length)
+ for (var i = 0, len = buf.length; i < len; i += 1) {
+ buf[i] = this[i]
+ }
+ return buf.buffer
+ }
+ } else {
+ throw new TypeError('Buffer.toArrayBuffer not supported in this browser')
+ }
+}
+
+// HELPER FUNCTIONS
+// ================
+
+var BP = Buffer.prototype
+
+/**
+ * Augment a Uint8Array *instance* (not the Uint8Array class!) with Buffer methods
+ */
+Buffer._augment = function _augment (arr) {
+ arr.constructor = Buffer
+ arr._isBuffer = true
+
+ // save reference to original Uint8Array get/set methods before overwriting
+ arr._get = arr.get
+ arr._set = arr.set
+
+ // deprecated, will be removed in node 0.13+
+ arr.get = BP.get
+ arr.set = BP.set
+
+ arr.write = BP.write
+ arr.toString = BP.toString
+ arr.toLocaleString = BP.toString
+ arr.toJSON = BP.toJSON
+ arr.equals = BP.equals
+ arr.compare = BP.compare
+ arr.indexOf = BP.indexOf
+ arr.copy = BP.copy
+ arr.slice = BP.slice
+ arr.readUIntLE = BP.readUIntLE
+ arr.readUIntBE = BP.readUIntBE
+ arr.readUInt8 = BP.readUInt8
+ arr.readUInt16LE = BP.readUInt16LE
+ arr.readUInt16BE = BP.readUInt16BE
+ arr.readUInt32LE = BP.readUInt32LE
+ arr.readUInt32BE = BP.readUInt32BE
+ arr.readIntLE = BP.readIntLE
+ arr.readIntBE = BP.readIntBE
+ arr.readInt8 = BP.readInt8
+ arr.readInt16LE = BP.readInt16LE
+ arr.readInt16BE = BP.readInt16BE
+ arr.readInt32LE = BP.readInt32LE
+ arr.readInt32BE = BP.readInt32BE
+ arr.readFloatLE = BP.readFloatLE
+ arr.readFloatBE = BP.readFloatBE
+ arr.readDoubleLE = BP.readDoubleLE
+ arr.readDoubleBE = BP.readDoubleBE
+ arr.writeUInt8 = BP.writeUInt8
+ arr.writeUIntLE = BP.writeUIntLE
+ arr.writeUIntBE = BP.writeUIntBE
+ arr.writeUInt16LE = BP.writeUInt16LE
+ arr.writeUInt16BE = BP.writeUInt16BE
+ arr.writeUInt32LE = BP.writeUInt32LE
+ arr.writeUInt32BE = BP.writeUInt32BE
+ arr.writeIntLE = BP.writeIntLE
+ arr.writeIntBE = BP.writeIntBE
+ arr.writeInt8 = BP.writeInt8
+ arr.writeInt16LE = BP.writeInt16LE
+ arr.writeInt16BE = BP.writeInt16BE
+ arr.writeInt32LE = BP.writeInt32LE
+ arr.writeInt32BE = BP.writeInt32BE
+ arr.writeFloatLE = BP.writeFloatLE
+ arr.writeFloatBE = BP.writeFloatBE
+ arr.writeDoubleLE = BP.writeDoubleLE
+ arr.writeDoubleBE = BP.writeDoubleBE
+ arr.fill = BP.fill
+ arr.inspect = BP.inspect
+ arr.toArrayBuffer = BP.toArrayBuffer
+
+ return arr
+}
+
+var INVALID_BASE64_RE = /[^+\/0-9A-z\-]/g
+
+function base64clean (str) {
+ // Node strips out invalid characters like \n and \t from the string, base64-js does not
+ str = stringtrim(str).replace(INVALID_BASE64_RE, '')
+ // Node converts strings with length < 2 to ''
+ if (str.length < 2) return ''
+ // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
+ while (str.length % 4 !== 0) {
+ str = str + '='
+ }
+ return str
+}
+
+function stringtrim (str) {
+ if (str.trim) return str.trim()
+ return str.replace(/^\s+|\s+$/g, '')
+}
+
+function isArrayish (subject) {
+ return isArray(subject) || Buffer.isBuffer(subject) ||
+ subject && typeof subject === 'object' &&
+ typeof subject.length === 'number'
+}
+
+function toHex (n) {
+ if (n < 16) return '0' + n.toString(16)
+ return n.toString(16)
+}
+
+function utf8ToBytes (string, units) {
+ units = units || Infinity
+ var codePoint
+ var length = string.length
+ var leadSurrogate = null
+ var bytes = []
+ var i = 0
+
+ for (; i < length; i++) {
+ codePoint = string.charCodeAt(i)
+
+ // is surrogate component
+ if (codePoint > 0xD7FF && codePoint < 0xE000) {
+ // last char was a lead
+ if (leadSurrogate) {
+ // 2 leads in a row
+ if (codePoint < 0xDC00) {
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = codePoint
+ continue
+ } else {
+ // valid surrogate pair
+ codePoint = leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00 | 0x10000
+ leadSurrogate = null
+ }
+ } else {
+ // no lead yet
+
+ if (codePoint > 0xDBFF) {
+ // unexpected trail
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ } else if (i + 1 === length) {
+ // unpaired lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ continue
+ } else {
+ // valid lead
+ leadSurrogate = codePoint
+ continue
+ }
+ }
+ } else if (leadSurrogate) {
+ // valid bmp char, but last char was a lead
+ if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
+ leadSurrogate = null
+ }
+
+ // encode utf8
+ if (codePoint < 0x80) {
+ if ((units -= 1) < 0) break
+ bytes.push(codePoint)
+ } else if (codePoint < 0x800) {
+ if ((units -= 2) < 0) break
+ bytes.push(
+ codePoint >> 0x6 | 0xC0,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x10000) {
+ if ((units -= 3) < 0) break
+ bytes.push(
+ codePoint >> 0xC | 0xE0,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else if (codePoint < 0x200000) {
+ if ((units -= 4) < 0) break
+ bytes.push(
+ codePoint >> 0x12 | 0xF0,
+ codePoint >> 0xC & 0x3F | 0x80,
+ codePoint >> 0x6 & 0x3F | 0x80,
+ codePoint & 0x3F | 0x80
+ )
+ } else {
+ throw new Error('Invalid code point')
+ }
+ }
+
+ return bytes
+}
+
+function asciiToBytes (str) {
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ // Node's code seems to be doing this and not & 0x7F..
+ byteArray.push(str.charCodeAt(i) & 0xFF)
+ }
+ return byteArray
+}
+
+function utf16leToBytes (str, units) {
+ var c, hi, lo
+ var byteArray = []
+ for (var i = 0; i < str.length; i++) {
+ if ((units -= 2) < 0) break
+
+ c = str.charCodeAt(i)
+ hi = c >> 8
+ lo = c % 256
+ byteArray.push(lo)
+ byteArray.push(hi)
+ }
+
+ return byteArray
+}
+
+function base64ToBytes (str) {
+ return base64.toByteArray(base64clean(str))
+}
+
+function blitBuffer (src, dst, offset, length) {
+ for (var i = 0; i < length; i++) {
+ if ((i + offset >= dst.length) || (i >= src.length)) break
+ dst[i + offset] = src[i]
+ }
+ return i
+}
+
+function decodeUtf8Char (str) {
+ try {
+ return decodeURIComponent(str)
+ } catch (err) {
+ return String.fromCharCode(0xFFFD) // UTF 8 invalid char
+ }
+}
+
+},{"base64-js":4,"ieee754":5,"is-array":6}],4:[function(_dereq_,module,exports){
+var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
+
+;(function (exports) {
+ 'use strict';
+
+ var Arr = (typeof Uint8Array !== 'undefined')
+ ? Uint8Array
+ : Array
+
+ var PLUS = '+'.charCodeAt(0)
+ var SLASH = '/'.charCodeAt(0)
+ var NUMBER = '0'.charCodeAt(0)
+ var LOWER = 'a'.charCodeAt(0)
+ var UPPER = 'A'.charCodeAt(0)
+ var PLUS_URL_SAFE = '-'.charCodeAt(0)
+ var SLASH_URL_SAFE = '_'.charCodeAt(0)
+
+ function decode (elt) {
+ var code = elt.charCodeAt(0)
+ if (code === PLUS ||
+ code === PLUS_URL_SAFE)
+ return 62 // '+'
+ if (code === SLASH ||
+ code === SLASH_URL_SAFE)
+ return 63 // '/'
+ if (code < NUMBER)
+ return -1 //no match
+ if (code < NUMBER + 10)
+ return code - NUMBER + 26 + 26
+ if (code < UPPER + 26)
+ return code - UPPER
+ if (code < LOWER + 26)
+ return code - LOWER + 26
+ }
+
+ function b64ToByteArray (b64) {
+ var i, j, l, tmp, placeHolders, arr
+
+ if (b64.length % 4 > 0) {
+ throw new Error('Invalid string. Length must be a multiple of 4')
+ }
+
+ // the number of equal signs (place holders)
+ // if there are two placeholders, than the two characters before it
+ // represent one byte
+ // if there is only one, then the three characters before it represent 2 bytes
+ // this is just a cheap hack to not do indexOf twice
+ var len = b64.length
+ placeHolders = '=' === b64.charAt(len - 2) ? 2 : '=' === b64.charAt(len - 1) ? 1 : 0
+
+ // base64 is 4/3 + up to two characters of the original data
+ arr = new Arr(b64.length * 3 / 4 - placeHolders)
+
+ // if there are placeholders, only get up to the last complete 4 chars
+ l = placeHolders > 0 ? b64.length - 4 : b64.length
+
+ var L = 0
+
+ function push (v) {
+ arr[L++] = v
+ }
+
+ for (i = 0, j = 0; i < l; i += 4, j += 3) {
+ tmp = (decode(b64.charAt(i)) << 18) | (decode(b64.charAt(i + 1)) << 12) | (decode(b64.charAt(i + 2)) << 6) | decode(b64.charAt(i + 3))
+ push((tmp & 0xFF0000) >> 16)
+ push((tmp & 0xFF00) >> 8)
+ push(tmp & 0xFF)
+ }
+
+ if (placeHolders === 2) {
+ tmp = (decode(b64.charAt(i)) << 2) | (decode(b64.charAt(i + 1)) >> 4)
+ push(tmp & 0xFF)
+ } else if (placeHolders === 1) {
+ tmp = (decode(b64.charAt(i)) << 10) | (decode(b64.charAt(i + 1)) << 4) | (decode(b64.charAt(i + 2)) >> 2)
+ push((tmp >> 8) & 0xFF)
+ push(tmp & 0xFF)
+ }
+
+ return arr
+ }
+
+ function uint8ToBase64 (uint8) {
+ var i,
+ extraBytes = uint8.length % 3, // if we have 1 byte left, pad 2 bytes
+ output = "",
+ temp, length
+
+ function encode (num) {
+ return lookup.charAt(num)
+ }
+
+ function tripletToBase64 (num) {
+ return encode(num >> 18 & 0x3F) + encode(num >> 12 & 0x3F) + encode(num >> 6 & 0x3F) + encode(num & 0x3F)
+ }
+
+ // go through the array every three bytes, we'll deal with trailing stuff later
+ for (i = 0, length = uint8.length - extraBytes; i < length; i += 3) {
+ temp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
+ output += tripletToBase64(temp)
+ }
+
+ // pad the end with zeros, but make sure to not forget the extra bytes
+ switch (extraBytes) {
+ case 1:
+ temp = uint8[uint8.length - 1]
+ output += encode(temp >> 2)
+ output += encode((temp << 4) & 0x3F)
+ output += '=='
+ break
+ case 2:
+ temp = (uint8[uint8.length - 2] << 8) + (uint8[uint8.length - 1])
+ output += encode(temp >> 10)
+ output += encode((temp >> 4) & 0x3F)
+ output += encode((temp << 2) & 0x3F)
+ output += '='
+ break
+ }
+
+ return output
+ }
+
+ exports.toByteArray = b64ToByteArray
+ exports.fromByteArray = uint8ToBase64
+}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
+
+},{}],5:[function(_dereq_,module,exports){
+exports.read = function(buffer, offset, isLE, mLen, nBytes) {
+ var e, m,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ nBits = -7,
+ i = isLE ? (nBytes - 1) : 0,
+ d = isLE ? -1 : 1,
+ s = buffer[offset + i];
+
+ i += d;
+
+ e = s & ((1 << (-nBits)) - 1);
+ s >>= (-nBits);
+ nBits += eLen;
+ for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ m = e & ((1 << (-nBits)) - 1);
+ e >>= (-nBits);
+ nBits += mLen;
+ for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8);
+
+ if (e === 0) {
+ e = 1 - eBias;
+ } else if (e === eMax) {
+ return m ? NaN : ((s ? -1 : 1) * Infinity);
+ } else {
+ m = m + Math.pow(2, mLen);
+ e = e - eBias;
+ }
+ return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
+};
+
+exports.write = function(buffer, value, offset, isLE, mLen, nBytes) {
+ var e, m, c,
+ eLen = nBytes * 8 - mLen - 1,
+ eMax = (1 << eLen) - 1,
+ eBias = eMax >> 1,
+ rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0),
+ i = isLE ? 0 : (nBytes - 1),
+ d = isLE ? 1 : -1,
+ s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;
+
+ value = Math.abs(value);
+
+ if (isNaN(value) || value === Infinity) {
+ m = isNaN(value) ? 1 : 0;
+ e = eMax;
+ } else {
+ e = Math.floor(Math.log(value) / Math.LN2);
+ if (value * (c = Math.pow(2, -e)) < 1) {
+ e--;
+ c *= 2;
+ }
+ if (e + eBias >= 1) {
+ value += rt / c;
+ } else {
+ value += rt * Math.pow(2, 1 - eBias);
+ }
+ if (value * c >= 2) {
+ e++;
+ c /= 2;
+ }
+
+ if (e + eBias >= eMax) {
+ m = 0;
+ e = eMax;
+ } else if (e + eBias >= 1) {
+ m = (value * c - 1) * Math.pow(2, mLen);
+ e = e + eBias;
+ } else {
+ m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
+ e = 0;
+ }
+ }
+
+ for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8);
+
+ e = (e << mLen) | m;
+ eLen += mLen;
+ for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8);
+
+ buffer[offset + i - d] |= s * 128;
+};
+
+},{}],6:[function(_dereq_,module,exports){
+
+/**
+ * isArray
+ */
+
+var isArray = Array.isArray;
+
+/**
+ * toString
+ */
+
+var str = Object.prototype.toString;
+
+/**
+ * Whether or not the given `val`
+ * is an array.
+ *
+ * example:
+ *
+ * isArray([]);
+ * // > true
+ * isArray(arguments);
+ * // > false
+ * isArray('');
+ * // > false
+ *
+ * @param {mixed} val
+ * @return {bool}
+ */
+
+module.exports = isArray || function (val) {
+ return !! val && '[object Array]' == str.call(val);
+};
+
+},{}],7:[function(_dereq_,module,exports){
+(function (process){
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// resolves . and .. elements in a path array with directory names there
+// must be no slashes, empty elements, or device names (c:\) in the array
+// (so also no leading and trailing slashes - it does not distinguish
+// relative and absolute paths)
+function normalizeArray(parts, allowAboveRoot) {
+ // if the path tries to go above the root, `up` ends up > 0
+ var up = 0;
+ for (var i = parts.length - 1; i >= 0; i--) {
+ var last = parts[i];
+ if (last === '.') {
+ parts.splice(i, 1);
+ } else if (last === '..') {
+ parts.splice(i, 1);
+ up++;
+ } else if (up) {
+ parts.splice(i, 1);
+ up--;
+ }
+ }
+
+ // if the path is allowed to go above the root, restore leading ..s
+ if (allowAboveRoot) {
+ for (; up--; up) {
+ parts.unshift('..');
+ }
+ }
+
+ return parts;
+}
+
+// Split a filename into [root, dir, basename, ext], unix version
+// 'root' is just a slash, or nothing.
+var splitPathRe =
+ /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
+var splitPath = function(filename) {
+ return splitPathRe.exec(filename).slice(1);
+};
+
+// path.resolve([from ...], to)
+// posix version
+exports.resolve = function() {
+ var resolvedPath = '',
+ resolvedAbsolute = false;
+
+ for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
+ var path = (i >= 0) ? arguments[i] : process.cwd();
+
+ // Skip empty and invalid entries
+ if (typeof path !== 'string') {
+ throw new TypeError('Arguments to path.resolve must be strings');
+ } else if (!path) {
+ continue;
+ }
+
+ resolvedPath = path + '/' + resolvedPath;
+ resolvedAbsolute = path.charAt(0) === '/';
+ }
+
+ // At this point the path should be resolved to a full absolute path, but
+ // handle relative paths to be safe (might happen when process.cwd() fails)
+
+ // Normalize the path
+ resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
+ return !!p;
+ }), !resolvedAbsolute).join('/');
+
+ return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
+};
+
+// path.normalize(path)
+// posix version
+exports.normalize = function(path) {
+ var isAbsolute = exports.isAbsolute(path),
+ trailingSlash = substr(path, -1) === '/';
+
+ // Normalize the path
+ path = normalizeArray(filter(path.split('/'), function(p) {
+ return !!p;
+ }), !isAbsolute).join('/');
+
+ if (!path && !isAbsolute) {
+ path = '.';
+ }
+ if (path && trailingSlash) {
+ path += '/';
+ }
+
+ return (isAbsolute ? '/' : '') + path;
+};
+
+// posix version
+exports.isAbsolute = function(path) {
+ return path.charAt(0) === '/';
+};
+
+// posix version
+exports.join = function() {
+ var paths = Array.prototype.slice.call(arguments, 0);
+ return exports.normalize(filter(paths, function(p, index) {
+ if (typeof p !== 'string') {
+ throw new TypeError('Arguments to path.join must be strings');
+ }
+ return p;
+ }).join('/'));
+};
+
+
+// path.relative(from, to)
+// posix version
+exports.relative = function(from, to) {
+ from = exports.resolve(from).substr(1);
+ to = exports.resolve(to).substr(1);
+
+ function trim(arr) {
+ var start = 0;
+ for (; start < arr.length; start++) {
+ if (arr[start] !== '') break;
+ }
+
+ var end = arr.length - 1;
+ for (; end >= 0; end--) {
+ if (arr[end] !== '') break;
+ }
+
+ if (start > end) return [];
+ return arr.slice(start, end - start + 1);
+ }
+
+ var fromParts = trim(from.split('/'));
+ var toParts = trim(to.split('/'));
+
+ var length = Math.min(fromParts.length, toParts.length);
+ var samePartsLength = length;
+ for (var i = 0; i < length; i++) {
+ if (fromParts[i] !== toParts[i]) {
+ samePartsLength = i;
+ break;
+ }
+ }
+
+ var outputParts = [];
+ for (var i = samePartsLength; i < fromParts.length; i++) {
+ outputParts.push('..');
+ }
+
+ outputParts = outputParts.concat(toParts.slice(samePartsLength));
+
+ return outputParts.join('/');
+};
+
+exports.sep = '/';
+exports.delimiter = ':';
+
+exports.dirname = function(path) {
+ var result = splitPath(path),
+ root = result[0],
+ dir = result[1];
+
+ if (!root && !dir) {
+ // No dirname whatsoever
+ return '.';
+ }
+
+ if (dir) {
+ // It has a dirname, strip trailing slash
+ dir = dir.substr(0, dir.length - 1);
+ }
+
+ return root + dir;
+};
+
+
+exports.basename = function(path, ext) {
+ var f = splitPath(path)[2];
+ // TODO: make this comparison case-insensitive on windows?
+ if (ext && f.substr(-1 * ext.length) === ext) {
+ f = f.substr(0, f.length - ext.length);
+ }
+ return f;
+};
+
+
+exports.extname = function(path) {
+ return splitPath(path)[3];
+};
+
+function filter (xs, f) {
+ if (xs.filter) return xs.filter(f);
+ var res = [];
+ for (var i = 0; i < xs.length; i++) {
+ if (f(xs[i], i, xs)) res.push(xs[i]);
+ }
+ return res;
+}
+
+// String.prototype.substr - negative index don't work in IE8
+var substr = 'ab'.substr(-1) === 'b'
+ ? function (str, start, len) { return str.substr(start, len) }
+ : function (str, start, len) {
+ if (start < 0) start = str.length + start;
+ return str.substr(start, len);
+ }
+;
+
+}).call(this,_dereq_('_process'))
+},{"_process":8}],8:[function(_dereq_,module,exports){
+// shim for using process in browser
+
+var process = module.exports = {};
+var queue = [];
+var draining = false;
+
+function drainQueue() {
+ if (draining) {
+ return;
+ }
+ draining = true;
+ var currentQueue;
+ var len = queue.length;
+ while(len) {
+ currentQueue = queue;
+ queue = [];
+ var i = -1;
+ while (++i < len) {
+ currentQueue[i]();
+ }
+ len = queue.length;
+ }
+ draining = false;
+}
+process.nextTick = function (fun) {
+ queue.push(fun);
+ if (!draining) {
+ setTimeout(drainQueue, 0);
+ }
+};
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+process.version = ''; // empty string to avoid regexp issues
+process.versions = {};
+
+function noop() {}
+
+process.on = noop;
+process.addListener = noop;
+process.once = noop;
+process.off = noop;
+process.removeListener = noop;
+process.removeAllListeners = noop;
+process.emit = noop;
+
+process.binding = function (name) {
+ throw new Error('process.binding is not supported');
+};
+
+// TODO(shtylman)
+process.cwd = function () { return '/' };
+process.chdir = function (dir) {
+ throw new Error('process.chdir is not supported');
+};
+process.umask = function() { return 0; };
+
+},{}],9:[function(_dereq_,module,exports){
+/*
+ Copyright (C) 2013 Ariya Hidayat <ariya.hidayat@gmail.com>
+ Copyright (C) 2013 Thaddee Tyl <thaddee.tyl@gmail.com>
+ Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
+ Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>
+ Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
+ Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>
+ Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
+ Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
+ Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+(function (root, factory) {
+ 'use strict';
+
+ // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
+ // Rhino, and plain browser loading.
+
+ /* istanbul ignore next */
+ if (typeof define === 'function' && define.amd) {
+ define(['exports'], factory);
+ } else if (typeof exports !== 'undefined') {
+ factory(exports);
+ } else {
+ factory((root.esprima = {}));
+ }
+}(this, function (exports) {
+ 'use strict';
+
+ var Token,
+ TokenName,
+ FnExprTokens,
+ Syntax,
+ PropertyKind,
+ Messages,
+ Regex,
+ SyntaxTreeDelegate,
+ XHTMLEntities,
+ ClassPropertyType,
+ source,
+ strict,
+ index,
+ lineNumber,
+ lineStart,
+ length,
+ delegate,
+ lookahead,
+ state,
+ extra;
+
+ Token = {
+ BooleanLiteral: 1,
+ EOF: 2,
+ Identifier: 3,
+ Keyword: 4,
+ NullLiteral: 5,
+ NumericLiteral: 6,
+ Punctuator: 7,
+ StringLiteral: 8,
+ RegularExpression: 9,
+ Template: 10,
+ JSXIdentifier: 11,
+ JSXText: 12
+ };
+
+ TokenName = {};
+ TokenName[Token.BooleanLiteral] = 'Boolean';
+ TokenName[Token.EOF] = '<end>';
+ TokenName[Token.Identifier] = 'Identifier';
+ TokenName[Token.Keyword] = 'Keyword';
+ TokenName[Token.NullLiteral] = 'Null';
+ TokenName[Token.NumericLiteral] = 'Numeric';
+ TokenName[Token.Punctuator] = 'Punctuator';
+ TokenName[Token.StringLiteral] = 'String';
+ TokenName[Token.JSXIdentifier] = 'JSXIdentifier';
+ TokenName[Token.JSXText] = 'JSXText';
+ TokenName[Token.RegularExpression] = 'RegularExpression';
+
+ // A function following one of those tokens is an expression.
+ FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
+ 'return', 'case', 'delete', 'throw', 'void',
+ // assignment operators
+ '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=',
+ '&=', '|=', '^=', ',',
+ // binary/unary operators
+ '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
+ '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
+ '<=', '<', '>', '!=', '!=='];
+
+ Syntax = {
+ AnyTypeAnnotation: 'AnyTypeAnnotation',
+ ArrayExpression: 'ArrayExpression',
+ ArrayPattern: 'ArrayPattern',
+ ArrayTypeAnnotation: 'ArrayTypeAnnotation',
+ ArrowFunctionExpression: 'ArrowFunctionExpression',
+ AssignmentExpression: 'AssignmentExpression',
+ BinaryExpression: 'BinaryExpression',
+ BlockStatement: 'BlockStatement',
+ BooleanTypeAnnotation: 'BooleanTypeAnnotation',
+ BreakStatement: 'BreakStatement',
+ CallExpression: 'CallExpression',
+ CatchClause: 'CatchClause',
+ ClassBody: 'ClassBody',
+ ClassDeclaration: 'ClassDeclaration',
+ ClassExpression: 'ClassExpression',
+ ClassImplements: 'ClassImplements',
+ ClassProperty: 'ClassProperty',
+ ComprehensionBlock: 'ComprehensionBlock',
+ ComprehensionExpression: 'ComprehensionExpression',
+ ConditionalExpression: 'ConditionalExpression',
+ ContinueStatement: 'ContinueStatement',
+ DebuggerStatement: 'DebuggerStatement',
+ DeclareClass: 'DeclareClass',
+ DeclareFunction: 'DeclareFunction',
+ DeclareModule: 'DeclareModule',
+ DeclareVariable: 'DeclareVariable',
+ DoWhileStatement: 'DoWhileStatement',
+ EmptyStatement: 'EmptyStatement',
+ ExportDeclaration: 'ExportDeclaration',
+ ExportBatchSpecifier: 'ExportBatchSpecifier',
+ ExportSpecifier: 'ExportSpecifier',
+ ExpressionStatement: 'ExpressionStatement',
+ ForInStatement: 'ForInStatement',
+ ForOfStatement: 'ForOfStatement',
+ ForStatement: 'ForStatement',
+ FunctionDeclaration: 'FunctionDeclaration',
+ FunctionExpression: 'FunctionExpression',
+ FunctionTypeAnnotation: 'FunctionTypeAnnotation',
+ FunctionTypeParam: 'FunctionTypeParam',
+ GenericTypeAnnotation: 'GenericTypeAnnotation',
+ Identifier: 'Identifier',
+ IfStatement: 'IfStatement',
+ ImportDeclaration: 'ImportDeclaration',
+ ImportDefaultSpecifier: 'ImportDefaultSpecifier',
+ ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
+ ImportSpecifier: 'ImportSpecifier',
+ InterfaceDeclaration: 'InterfaceDeclaration',
+ InterfaceExtends: 'InterfaceExtends',
+ IntersectionTypeAnnotation: 'IntersectionTypeAnnotation',
+ LabeledStatement: 'LabeledStatement',
+ Literal: 'Literal',
+ LogicalExpression: 'LogicalExpression',
+ MemberExpression: 'MemberExpression',
+ MethodDefinition: 'MethodDefinition',
+ ModuleSpecifier: 'ModuleSpecifier',
+ NewExpression: 'NewExpression',
+ NullableTypeAnnotation: 'NullableTypeAnnotation',
+ NumberTypeAnnotation: 'NumberTypeAnnotation',
+ ObjectExpression: 'ObjectExpression',
+ ObjectPattern: 'ObjectPattern',
+ ObjectTypeAnnotation: 'ObjectTypeAnnotation',
+ ObjectTypeCallProperty: 'ObjectTypeCallProperty',
+ ObjectTypeIndexer: 'ObjectTypeIndexer',
+ ObjectTypeProperty: 'ObjectTypeProperty',
+ Program: 'Program',
+ Property: 'Property',
+ QualifiedTypeIdentifier: 'QualifiedTypeIdentifier',
+ ReturnStatement: 'ReturnStatement',
+ SequenceExpression: 'SequenceExpression',
+ SpreadElement: 'SpreadElement',
+ SpreadProperty: 'SpreadProperty',
+ StringLiteralTypeAnnotation: 'StringLiteralTypeAnnotation',
+ StringTypeAnnotation: 'StringTypeAnnotation',
+ SwitchCase: 'SwitchCase',
+ SwitchStatement: 'SwitchStatement',
+ TaggedTemplateExpression: 'TaggedTemplateExpression',
+ TemplateElement: 'TemplateElement',
+ TemplateLiteral: 'TemplateLiteral',
+ ThisExpression: 'ThisExpression',
+ ThrowStatement: 'ThrowStatement',
+ TupleTypeAnnotation: 'TupleTypeAnnotation',
+ TryStatement: 'TryStatement',
+ TypeAlias: 'TypeAlias',
+ TypeAnnotation: 'TypeAnnotation',
+ TypeCastExpression: 'TypeCastExpression',
+ TypeofTypeAnnotation: 'TypeofTypeAnnotation',
+ TypeParameterDeclaration: 'TypeParameterDeclaration',
+ TypeParameterInstantiation: 'TypeParameterInstantiation',
+ UnaryExpression: 'UnaryExpression',
+ UnionTypeAnnotation: 'UnionTypeAnnotation',
+ UpdateExpression: 'UpdateExpression',
+ VariableDeclaration: 'VariableDeclaration',
+ VariableDeclarator: 'VariableDeclarator',
+ VoidTypeAnnotation: 'VoidTypeAnnotation',
+ WhileStatement: 'WhileStatement',
+ WithStatement: 'WithStatement',
+ JSXIdentifier: 'JSXIdentifier',
+ JSXNamespacedName: 'JSXNamespacedName',
+ JSXMemberExpression: 'JSXMemberExpression',
+ JSXEmptyExpression: 'JSXEmptyExpression',
+ JSXExpressionContainer: 'JSXExpressionContainer',
+ JSXElement: 'JSXElement',
+ JSXClosingElement: 'JSXClosingElement',
+ JSXOpeningElement: 'JSXOpeningElement',
+ JSXAttribute: 'JSXAttribute',
+ JSXSpreadAttribute: 'JSXSpreadAttribute',
+ JSXText: 'JSXText',
+ YieldExpression: 'YieldExpression',
+ AwaitExpression: 'AwaitExpression'
+ };
+
+ PropertyKind = {
+ Data: 1,
+ Get: 2,
+ Set: 4
+ };
+
+ ClassPropertyType = {
+ 'static': 'static',
+ prototype: 'prototype'
+ };
+
+ // Error messages should be identical to V8.
+ Messages = {
+ UnexpectedToken: 'Unexpected token %0',
+ UnexpectedNumber: 'Unexpected number',
+ UnexpectedString: 'Unexpected string',
+ UnexpectedIdentifier: 'Unexpected identifier',
+ UnexpectedReserved: 'Unexpected reserved word',
+ UnexpectedTemplate: 'Unexpected quasi %0',
+ UnexpectedEOS: 'Unexpected end of input',
+ NewlineAfterThrow: 'Illegal newline after throw',
+ InvalidRegExp: 'Invalid regular expression',
+ UnterminatedRegExp: 'Invalid regular expression: missing /',
+ InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+ InvalidLHSInFormalsList: 'Invalid left-hand side in formals list',
+ InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+ MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+ NoCatchOrFinally: 'Missing catch or finally after try',
+ UnknownLabel: 'Undefined label \'%0\'',
+ Redeclaration: '%0 \'%1\' has already been declared',
+ IllegalContinue: 'Illegal continue statement',
+ IllegalBreak: 'Illegal break statement',
+ IllegalDuplicateClassProperty: 'Illegal duplicate property in class definition',
+ IllegalClassConstructorProperty: 'Illegal constructor property in class definition',
+ IllegalReturn: 'Illegal return statement',
+ IllegalSpread: 'Illegal spread element',
+ StrictModeWith: 'Strict mode code may not include a with statement',
+ StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+ StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+ StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+ StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+ ParameterAfterRestParameter: 'Rest parameter must be final parameter of an argument list',
+ DefaultRestParameter: 'Rest parameter can not have a default value',
+ ElementAfterSpreadElement: 'Spread must be the final element of an element list',
+ PropertyAfterSpreadProperty: 'A rest property must be the final property of an object literal',
+ ObjectPatternAsRestParameter: 'Invalid rest parameter',
+ ObjectPatternAsSpread: 'Invalid spread argument',
+ StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+ StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+ StrictDelete: 'Delete of an unqualified identifier in strict mode.',
+ StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode',
+ AccessorDataProperty: 'Object literal may not have data and accessor property with the same name',
+ AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name',
+ StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
+ StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictReservedWord: 'Use of future reserved word in strict mode',
+ MissingFromClause: 'Missing from clause',
+ NoAsAfterImportNamespace: 'Missing as after import *',
+ InvalidModuleSpecifier: 'Invalid module specifier',
+ IllegalImportDeclaration: 'Illegal import declaration',
+ IllegalExportDeclaration: 'Illegal export declaration',
+ NoUninitializedConst: 'Const must be initialized',
+ ComprehensionRequiresBlock: 'Comprehension must have at least one block',
+ ComprehensionError: 'Comprehension Error',
+ EachNotAllowed: 'Each is not supported',
+ InvalidJSXAttributeValue: 'JSX value should be either an expression or a quoted JSX text',
+ ExpectedJSXClosingTag: 'Expected corresponding JSX closing tag for %0',
+ AdjacentJSXElements: 'Adjacent JSX elements must be wrapped in an enclosing tag',
+ ConfusedAboutFunctionType: 'Unexpected token =>. It looks like ' +
+ 'you are trying to write a function type, but you ended up ' +
+ 'writing a grouped type followed by an =>, which is a syntax ' +
+ 'error. Remember, function type parameters are named so function ' +
+ 'types look like (name1: type1, name2: type2) => returnType. You ' +
+ 'probably wrote (type1) => returnType'
+ };
+
+ // See also tools/generate-unicode-regex.py.
+ Regex = {
+ NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
+ NonAsciiIdentifierPart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0300-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u0483-\u0487\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u05d0-\u05ea\u05f0-\u05f2\u0610-\u061a\u0620-\u0669\u066e-\u06d3\u06d5-\u06dc\u06df-\u06e8\u06ea-\u06fc\u06ff\u0710-\u074a\u074d-\u07b1\u07c0-\u07f5\u07fa\u0800-\u082d\u0840-\u085b\u08a0\u08a2-\u08ac\u08e4-\u08fe\u0900-\u0963\u0966-\u096f\u0971-\u0977\u0979-\u097f\u0981-\u0983\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bc-\u09c4\u09c7\u09c8\u09cb-\u09ce\u09d7\u09dc\u09dd\u09df-\u09e3\u09e6-\u09f1\u0a01-\u0a03\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a59-\u0a5c\u0a5e\u0a66-\u0a75\u0a81-\u0a83\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abc-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ad0\u0ae0-\u0ae3\u0ae6-\u0aef\u0b01-\u0b03\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3c-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b56\u0b57\u0b5c\u0b5d\u0b5f-\u0b63\u0b66-\u0b6f\u0b71\u0b82\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd0\u0bd7\u0be6-\u0bef\u0c01-\u0c03\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c58\u0c59\u0c60-\u0c63\u0c66-\u0c6f\u0c82\u0c83\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbc-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0cde\u0ce0-\u0ce3\u0ce6-\u0cef\u0cf1\u0cf2\u0d02\u0d03\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d-\u0d44\u0d46-\u0d48\u0d4a-\u0d4e\u0d57\u0d60-\u0d63\u0d66-\u0d6f\u0d7a-\u0d7f\u0d82\u0d83\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0df2\u0df3\u0e01-\u0e3a\u0e40-\u0e4e\u0e50-\u0e59\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb9\u0ebb-\u0ebd\u0ec0-\u0ec4\u0ec6\u0ec8-\u0ecd\u0ed0-\u0ed9\u0edc-\u0edf\u0f00\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e-\u0f47\u0f49-\u0f6c\u0f71-\u0f84\u0f86-\u0f97\u0f99-\u0fbc\u0fc6\u1000-\u1049\u1050-\u109d\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u135d-\u135f\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176c\u176e-\u1770\u1772\u1773\u1780-\u17d3\u17d7\u17dc\u17dd\u17e0-\u17e9\u180b-\u180d\u1810-\u1819\u1820-\u1877\u1880-\u18aa\u18b0-\u18f5\u1900-\u191c\u1920-\u192b\u1930-\u193b\u1946-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u19d0-\u19d9\u1a00-\u1a1b\u1a20-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1aa7\u1b00-\u1b4b\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1bf3\u1c00-\u1c37\u1c40-\u1c49\u1c4d-\u1c7d\u1cd0-\u1cd2\u1cd4-\u1cf6\u1d00-\u1de6\u1dfc-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u200c\u200d\u203f\u2040\u2054\u2071\u207f\u2090-\u209c\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d7f-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2de0-\u2dff\u2e2f\u3005-\u3007\u3021-\u302f\u3031-\u3035\u3038-\u303c\u3041-\u3096\u3099\u309a\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua62b\ua640-\ua66f\ua674-\ua67d\ua67f-\ua697\ua69f-\ua6f1\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua827\ua840-\ua873\ua880-\ua8c4\ua8d0-\ua8d9\ua8e0-\ua8f7\ua8fb\ua900-\ua92d\ua930-\ua953\ua960-\ua97c\ua980-\ua9c0\ua9cf-\ua9d9\uaa00-\uaa36\uaa40-\uaa4d\uaa50-\uaa59\uaa60-\uaa76\uaa7a\uaa7b\uaa80-\uaac2\uaadb-\uaadd\uaae0-\uaaef\uaaf2-\uaaf6\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabea\uabec\uabed\uabf0-\uabf9\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe00-\ufe0f\ufe20-\ufe26\ufe33\ufe34\ufe4d-\ufe4f\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff3f\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
+ LeadingZeros: new RegExp('^0+(?!$)')
+ };
+
+ // Ensure the condition is true, otherwise throw an error.
+ // This is only to have a better contract semantic, i.e. another safety net
+ // to catch a logic error. The condition shall be fulfilled in normal case.
+ // Do NOT use this to enforce a certain condition on any user input.
+
+ function assert(condition, message) {
+ /* istanbul ignore if */
+ if (!condition) {
+ throw new Error('ASSERT: ' + message);
+ }
+ }
+
+ function StringMap() {
+ this.$data = {};
+ }
+
+ StringMap.prototype.get = function (key) {
+ key = '$' + key;
+ return this.$data[key];
+ };
+
+ StringMap.prototype.set = function (key, value) {
+ key = '$' + key;
+ this.$data[key] = value;
+ return this;
+ };
+
+ StringMap.prototype.has = function (key) {
+ key = '$' + key;
+ return Object.prototype.hasOwnProperty.call(this.$data, key);
+ };
+
+ StringMap.prototype["delete"] = function (key) {
+ key = '$' + key;
+ return delete this.$data[key];
+ };
+
+ function isDecimalDigit(ch) {
+ return (ch >= 48 && ch <= 57); // 0..9
+ }
+
+ function isHexDigit(ch) {
+ return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
+ }
+
+ function isOctalDigit(ch) {
+ return '01234567'.indexOf(ch) >= 0;
+ }
+
+
+ // 7.2 White Space
+
+ function isWhiteSpace(ch) {
+ return (ch === 32) || // space
+ (ch === 9) || // tab
+ (ch === 0xB) ||
+ (ch === 0xC) ||
+ (ch === 0xA0) ||
+ (ch >= 0x1680 && '\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\uFEFF'.indexOf(String.fromCharCode(ch)) > 0);
+ }
+
+ // 7.3 Line Terminators
+
+ function isLineTerminator(ch) {
+ return (ch === 10) || (ch === 13) || (ch === 0x2028) || (ch === 0x2029);
+ }
+
+ // 7.6 Identifier Names and Identifiers
+
+ function isIdentifierStart(ch) {
+ return (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)
+ (ch >= 65 && ch <= 90) || // A..Z
+ (ch >= 97 && ch <= 122) || // a..z
+ (ch === 92) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)));
+ }
+
+ function isIdentifierPart(ch) {
+ return (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)
+ (ch >= 65 && ch <= 90) || // A..Z
+ (ch >= 97 && ch <= 122) || // a..z
+ (ch >= 48 && ch <= 57) || // 0..9
+ (ch === 92) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)));
+ }
+
+ // 7.6.1.2 Future Reserved Words
+
+ function isFutureReservedWord(id) {
+ switch (id) {
+ case 'class':
+ case 'enum':
+ case 'export':
+ case 'extends':
+ case 'import':
+ case 'super':
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ function isStrictModeReservedWord(id) {
+ switch (id) {
+ case 'implements':
+ case 'interface':
+ case 'package':
+ case 'private':
+ case 'protected':
+ case 'public':
+ case 'static':
+ case 'yield':
+ case 'let':
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ function isRestrictedWord(id) {
+ return id === 'eval' || id === 'arguments';
+ }
+
+ // 7.6.1.1 Keywords
+
+ function isKeyword(id) {
+ if (strict && isStrictModeReservedWord(id)) {
+ return true;
+ }
+
+ // 'const' is specialized as Keyword in V8.
+ // 'yield' is only treated as a keyword in strict mode.
+ // 'let' is for compatiblity with SpiderMonkey and ES.next.
+ // Some others are from future reserved words.
+
+ switch (id.length) {
+ case 2:
+ return (id === 'if') || (id === 'in') || (id === 'do');
+ case 3:
+ return (id === 'var') || (id === 'for') || (id === 'new') ||
+ (id === 'try') || (id === 'let');
+ case 4:
+ return (id === 'this') || (id === 'else') || (id === 'case') ||
+ (id === 'void') || (id === 'with') || (id === 'enum');
+ case 5:
+ return (id === 'while') || (id === 'break') || (id === 'catch') ||
+ (id === 'throw') || (id === 'const') ||
+ (id === 'class') || (id === 'super');
+ case 6:
+ return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
+ (id === 'switch') || (id === 'export') || (id === 'import');
+ case 7:
+ return (id === 'default') || (id === 'finally') || (id === 'extends');
+ case 8:
+ return (id === 'function') || (id === 'continue') || (id === 'debugger');
+ case 10:
+ return (id === 'instanceof');
+ default:
+ return false;
+ }
+ }
+
+ // 7.4 Comments
+
+ function addComment(type, value, start, end, loc) {
+ var comment;
+ assert(typeof start === 'number', 'Comment must have valid position');
+
+ // Because the way the actual token is scanned, often the comments
+ // (if any) are skipped twice during the lexical analysis.
+ // Thus, we need to skip adding a comment if the comment array already
+ // handled it.
+ if (state.lastCommentStart >= start) {
+ return;
+ }
+ state.lastCommentStart = start;
+
+ comment = {
+ type: type,
+ value: value
+ };
+ if (extra.range) {
+ comment.range = [start, end];
+ }
+ if (extra.loc) {
+ comment.loc = loc;
+ }
+ extra.comments.push(comment);
+ if (extra.attachComment) {
+ extra.leadingComments.push(comment);
+ extra.trailingComments.push(comment);
+ }
+ }
+
+ function skipSingleLineComment() {
+ var start, loc, ch, comment;
+
+ start = index - 2;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart - 2
+ }
+ };
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ ++index;
+ if (isLineTerminator(ch)) {
+ if (extra.comments) {
+ comment = source.slice(start + 2, index - 1);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart - 1
+ };
+ addComment('Line', comment, start, index - 1, loc);
+ }
+ if (ch === 13 && source.charCodeAt(index) === 10) {
+ ++index;
+ }
+ ++lineNumber;
+ lineStart = index;
+ return;
+ }
+ }
+
+ if (extra.comments) {
+ comment = source.slice(start + 2, index);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+ addComment('Line', comment, start, index, loc);
+ }
+ }
+
+ function skipMultiLineComment() {
+ var start, loc, ch, comment;
+
+ if (extra.comments) {
+ start = index - 2;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart - 2
+ }
+ };
+ }
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (isLineTerminator(ch)) {
+ if (ch === 13 && source.charCodeAt(index + 1) === 10) {
+ ++index;
+ }
+ ++lineNumber;
+ ++index;
+ lineStart = index;
+ if (index >= length) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ } else if (ch === 42) {
+ // Block comment ends with '*/' (char #42, char #47).
+ if (source.charCodeAt(index + 1) === 47) {
+ ++index;
+ ++index;
+ if (extra.comments) {
+ comment = source.slice(start + 2, index - 2);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+ addComment('Block', comment, start, index, loc);
+ }
+ return;
+ }
+ ++index;
+ } else {
+ ++index;
+ }
+ }
+
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ function skipComment() {
+ var ch;
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+
+ if (isWhiteSpace(ch)) {
+ ++index;
+ } else if (isLineTerminator(ch)) {
+ ++index;
+ if (ch === 13 && source.charCodeAt(index) === 10) {
+ ++index;
+ }
+ ++lineNumber;
+ lineStart = index;
+ } else if (ch === 47) { // 47 is '/'
+ ch = source.charCodeAt(index + 1);
+ if (ch === 47) {
+ ++index;
+ ++index;
+ skipSingleLineComment();
+ } else if (ch === 42) { // 42 is '*'
+ ++index;
+ ++index;
+ skipMultiLineComment();
+ } else {
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+ }
+
+ function scanHexEscape(prefix) {
+ var i, len, ch, code = 0;
+
+ len = (prefix === 'u') ? 4 : 2;
+ for (i = 0; i < len; ++i) {
+ if (index < length && isHexDigit(source[index])) {
+ ch = source[index++];
+ code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+ } else {
+ return '';
+ }
+ }
+ return String.fromCharCode(code);
+ }
+
+ function scanUnicodeCodePointEscape() {
+ var ch, code, cu1, cu2;
+
+ ch = source[index];
+ code = 0;
+
+ // At least, one hex digit is required.
+ if (ch === '}') {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ while (index < length) {
+ ch = source[index++];
+ if (!isHexDigit(ch)) {
+ break;
+ }
+ code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+ }
+
+ if (code > 0x10FFFF || ch !== '}') {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ // UTF-16 Encoding
+ if (code <= 0xFFFF) {
+ return String.fromCharCode(code);
+ }
+ cu1 = ((code - 0x10000) >> 10) + 0xD800;
+ cu2 = ((code - 0x10000) & 1023) + 0xDC00;
+ return String.fromCharCode(cu1, cu2);
+ }
+
+ function getEscapedIdentifier() {
+ var ch, id;
+
+ ch = source.charCodeAt(index++);
+ id = String.fromCharCode(ch);
+
+ // '\u' (char #92, char #117) denotes an escaped character.
+ if (ch === 92) {
+ if (source.charCodeAt(index) !== 117) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ ++index;
+ ch = scanHexEscape('u');
+ if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ id = ch;
+ }
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (!isIdentifierPart(ch)) {
+ break;
+ }
+ ++index;
+ id += String.fromCharCode(ch);
+
+ // '\u' (char #92, char #117) denotes an escaped character.
+ if (ch === 92) {
+ id = id.substr(0, id.length - 1);
+ if (source.charCodeAt(index) !== 117) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ ++index;
+ ch = scanHexEscape('u');
+ if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ id += ch;
+ }
+ }
+
+ return id;
+ }
+
+ function getIdentifier() {
+ var start, ch;
+
+ start = index++;
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (ch === 92) {
+ // Blackslash (char #92) marks Unicode escape sequence.
+ index = start;
+ return getEscapedIdentifier();
+ }
+ if (isIdentifierPart(ch)) {
+ ++index;
+ } else {
+ break;
+ }
+ }
+
+ return source.slice(start, index);
+ }
+
+ function scanIdentifier() {
+ var start, id, type;
+
+ start = index;
+
+ // Backslash (char #92) starts an escaped character.
+ id = (source.charCodeAt(index) === 92) ? getEscapedIdentifier() : getIdentifier();
+
+ // There is no keyword or literal with only one character.
+ // Thus, it must be an identifier.
+ if (id.length === 1) {
+ type = Token.Identifier;
+ } else if (isKeyword(id)) {
+ type = Token.Keyword;
+ } else if (id === 'null') {
+ type = Token.NullLiteral;
+ } else if (id === 'true' || id === 'false') {
+ type = Token.BooleanLiteral;
+ } else {
+ type = Token.Identifier;
+ }
+
+ return {
+ type: type,
+ value: id,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+
+ // 7.7 Punctuators
+
+ function scanPunctuator() {
+ var start = index,
+ code = source.charCodeAt(index),
+ code2,
+ ch1 = source[index],
+ ch2,
+ ch3,
+ ch4;
+
+ if (state.inJSXTag || state.inJSXChild) {
+ // Don't need to check for '{' and '}' as it's already handled
+ // correctly by default.
+ switch (code) {
+ case 60: // <
+ case 62: // >
+ ++index;
+ return {
+ type: Token.Punctuator,
+ value: String.fromCharCode(code),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+ }
+
+ switch (code) {
+ // Check for most common single-character punctuators.
+ case 40: // ( open bracket
+ case 41: // ) close bracket
+ case 59: // ; semicolon
+ case 44: // , comma
+ case 123: // { open curly brace
+ case 125: // } close curly brace
+ case 91: // [
+ case 93: // ]
+ case 58: // :
+ case 63: // ?
+ case 126: // ~
+ ++index;
+ if (extra.tokenize) {
+ if (code === 40) {
+ extra.openParenToken = extra.tokens.length;
+ } else if (code === 123) {
+ extra.openCurlyToken = extra.tokens.length;
+ }
+ }
+ return {
+ type: Token.Punctuator,
+ value: String.fromCharCode(code),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+
+ default:
+ code2 = source.charCodeAt(index + 1);
+
+ // '=' (char #61) marks an assignment or comparison operator.
+ if (code2 === 61) {
+ switch (code) {
+ case 37: // %
+ case 38: // &
+ case 42: // *:
+ case 43: // +
+ case 45: // -
+ case 47: // /
+ case 60: // <
+ case 62: // >
+ case 94: // ^
+ case 124: // |
+ index += 2;
+ return {
+ type: Token.Punctuator,
+ value: String.fromCharCode(code) + String.fromCharCode(code2),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+
+ case 33: // !
+ case 61: // =
+ index += 2;
+
+ // !== and ===
+ if (source.charCodeAt(index) === 61) {
+ ++index;
+ }
+ return {
+ type: Token.Punctuator,
+ value: source.slice(start, index),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ default:
+ break;
+ }
+ }
+ break;
+ }
+
+ // Peek more characters.
+
+ ch2 = source[index + 1];
+ ch3 = source[index + 2];
+ ch4 = source[index + 3];
+
+ // 4-character punctuator: >>>=
+
+ if (ch1 === '>' && ch2 === '>' && ch3 === '>') {
+ if (ch4 === '=') {
+ index += 4;
+ return {
+ type: Token.Punctuator,
+ value: '>>>=',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+ }
+
+ // 3-character punctuators: === !== >>> <<= >>=
+
+ if (ch1 === '>' && ch2 === '>' && ch3 === '>' && !state.inType) {
+ index += 3;
+ return {
+ type: Token.Punctuator,
+ value: '>>>',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if (ch1 === '<' && ch2 === '<' && ch3 === '=') {
+ index += 3;
+ return {
+ type: Token.Punctuator,
+ value: '<<=',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if (ch1 === '>' && ch2 === '>' && ch3 === '=') {
+ index += 3;
+ return {
+ type: Token.Punctuator,
+ value: '>>=',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if (ch1 === '.' && ch2 === '.' && ch3 === '.') {
+ index += 3;
+ return {
+ type: Token.Punctuator,
+ value: '...',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ // Other 2-character punctuators: ++ -- << >> && ||
+
+ // Don't match these tokens if we're in a type, since they never can
+ // occur and can mess up types like Map<string, Array<string>>
+ if (ch1 === ch2 && ('+-<>&|'.indexOf(ch1) >= 0) && !state.inType) {
+ index += 2;
+ return {
+ type: Token.Punctuator,
+ value: ch1 + ch2,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if (ch1 === '=' && ch2 === '>') {
+ index += 2;
+ return {
+ type: Token.Punctuator,
+ value: '=>',
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
+ ++index;
+ return {
+ type: Token.Punctuator,
+ value: ch1,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ if (ch1 === '.') {
+ ++index;
+ return {
+ type: Token.Punctuator,
+ value: ch1,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ // 7.8.3 Numeric Literals
+
+ function scanHexLiteral(start) {
+ var number = '';
+
+ while (index < length) {
+ if (!isHexDigit(source[index])) {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (number.length === 0) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt('0x' + number, 16),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanBinaryLiteral(start) {
+ var ch, number;
+
+ number = '';
+
+ while (index < length) {
+ ch = source[index];
+ if (ch !== '0' && ch !== '1') {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (number.length === 0) {
+ // only 0b or 0B
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ if (index < length) {
+ ch = source.charCodeAt(index);
+ /* istanbul ignore else */
+ if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt(number, 2),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanOctalLiteral(prefix, start) {
+ var number, octal;
+
+ if (isOctalDigit(prefix)) {
+ octal = true;
+ number = '0' + source[index++];
+ } else {
+ octal = false;
+ ++index;
+ number = '';
+ }
+
+ while (index < length) {
+ if (!isOctalDigit(source[index])) {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (!octal && number.length === 0) {
+ // only 0o or 0O
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt(number, 8),
+ octal: octal,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanNumericLiteral() {
+ var number, start, ch;
+
+ ch = source[index];
+ assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),
+ 'Numeric literal must start with a decimal digit or a decimal point');
+
+ start = index;
+ number = '';
+ if (ch !== '.') {
+ number = source[index++];
+ ch = source[index];
+
+ // Hex number starts with '0x'.
+ // Octal number starts with '0'.
+ // Octal number in ES6 starts with '0o'.
+ // Binary number in ES6 starts with '0b'.
+ if (number === '0') {
+ if (ch === 'x' || ch === 'X') {
+ ++index;
+ return scanHexLiteral(start);
+ }
+ if (ch === 'b' || ch === 'B') {
+ ++index;
+ return scanBinaryLiteral(start);
+ }
+ if (ch === 'o' || ch === 'O' || isOctalDigit(ch)) {
+ return scanOctalLiteral(ch, start);
+ }
+ // decimal number starts with '0' such as '09' is illegal.
+ if (ch && isDecimalDigit(ch.charCodeAt(0))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ }
+
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ ch = source[index];
+ }
+
+ if (ch === '.') {
+ number += source[index++];
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ ch = source[index];
+ }
+
+ if (ch === 'e' || ch === 'E') {
+ number += source[index++];
+
+ ch = source[index];
+ if (ch === '+' || ch === '-') {
+ number += source[index++];
+ }
+ if (isDecimalDigit(source.charCodeAt(index))) {
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ } else {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index))) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseFloat(number),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ // 7.8.4 String Literals
+
+ function scanStringLiteral() {
+ var str = '', quote, start, ch, code, unescaped, restore, octal = false;
+
+ quote = source[index];
+ assert((quote === '\'' || quote === '"'),
+ 'String literal must starts with a quote');
+
+ start = index;
+ ++index;
+
+ while (index < length) {
+ ch = source[index++];
+
+ if (ch === quote) {
+ quote = '';
+ break;
+ } else if (ch === '\\') {
+ ch = source[index++];
+ if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
+ switch (ch) {
+ case 'n':
+ str += '\n';
+ break;
+ case 'r':
+ str += '\r';
+ break;
+ case 't':
+ str += '\t';
+ break;
+ case 'u':
+ case 'x':
+ if (source[index] === '{') {
+ ++index;
+ str += scanUnicodeCodePointEscape();
+ } else {
+ restore = index;
+ unescaped = scanHexEscape(ch);
+ if (unescaped) {
+ str += unescaped;
+ } else {
+ index = restore;
+ str += ch;
+ }
+ }
+ break;
+ case 'b':
+ str += '\b';
+ break;
+ case 'f':
+ str += '\f';
+ break;
+ case 'v':
+ str += '\x0B';
+ break;
+
+ default:
+ if (isOctalDigit(ch)) {
+ code = '01234567'.indexOf(ch);
+
+ // \0 is not octal escape sequence
+ if (code !== 0) {
+ octal = true;
+ }
+
+ /* istanbul ignore else */
+ if (index < length && isOctalDigit(source[index])) {
+ octal = true;
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+
+ // 3 digits are only allowed when string starts
+ // with 0, 1, 2, 3
+ if ('0123'.indexOf(ch) >= 0 &&
+ index < length &&
+ isOctalDigit(source[index])) {
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+ }
+ }
+ str += String.fromCharCode(code);
+ } else {
+ str += ch;
+ }
+ break;
+ }
+ } else {
+ ++lineNumber;
+ if (ch === '\r' && source[index] === '\n') {
+ ++index;
+ }
+ lineStart = index;
+ }
+ } else if (isLineTerminator(ch.charCodeAt(0))) {
+ break;
+ } else {
+ str += ch;
+ }
+ }
+
+ if (quote !== '') {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ return {
+ type: Token.StringLiteral,
+ value: str,
+ octal: octal,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanTemplate() {
+ var cooked = '', ch, start, terminated, tail, restore, unescaped, code, octal;
+
+ terminated = false;
+ tail = false;
+ start = index;
+
+ ++index;
+
+ while (index < length) {
+ ch = source[index++];
+ if (ch === '`') {
+ tail = true;
+ terminated = true;
+ break;
+ } else if (ch === '$') {
+ if (source[index] === '{') {
+ ++index;
+ terminated = true;
+ break;
+ }
+ cooked += ch;
+ } else if (ch === '\\') {
+ ch = source[index++];
+ if (!isLineTerminator(ch.charCodeAt(0))) {
+ switch (ch) {
+ case 'n':
+ cooked += '\n';
+ break;
+ case 'r':
+ cooked += '\r';
+ break;
+ case 't':
+ cooked += '\t';
+ break;
+ case 'u':
+ case 'x':
+ if (source[index] === '{') {
+ ++index;
+ cooked += scanUnicodeCodePointEscape();
+ } else {
+ restore = index;
+ unescaped = scanHexEscape(ch);
+ if (unescaped) {
+ cooked += unescaped;
+ } else {
+ index = restore;
+ cooked += ch;
+ }
+ }
+ break;
+ case 'b':
+ cooked += '\b';
+ break;
+ case 'f':
+ cooked += '\f';
+ break;
+ case 'v':
+ cooked += '\v';
+ break;
+
+ default:
+ if (isOctalDigit(ch)) {
+ code = '01234567'.indexOf(ch);
+
+ // \0 is not octal escape sequence
+ if (code !== 0) {
+ octal = true;
+ }
+
+ /* istanbul ignore else */
+ if (index < length && isOctalDigit(source[index])) {
+ octal = true;
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+
+ // 3 digits are only allowed when string starts
+ // with 0, 1, 2, 3
+ if ('0123'.indexOf(ch) >= 0 &&
+ index < length &&
+ isOctalDigit(source[index])) {
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+ }
+ }
+ cooked += String.fromCharCode(code);
+ } else {
+ cooked += ch;
+ }
+ break;
+ }
+ } else {
+ ++lineNumber;
+ if (ch === '\r' && source[index] === '\n') {
+ ++index;
+ }
+ lineStart = index;
+ }
+ } else if (isLineTerminator(ch.charCodeAt(0))) {
+ ++lineNumber;
+ if (ch === '\r' && source[index] === '\n') {
+ ++index;
+ }
+ lineStart = index;
+ cooked += '\n';
+ } else {
+ cooked += ch;
+ }
+ }
+
+ if (!terminated) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ return {
+ type: Token.Template,
+ value: {
+ cooked: cooked,
+ raw: source.slice(start + 1, index - ((tail) ? 1 : 2))
+ },
+ tail: tail,
+ octal: octal,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanTemplateElement(option) {
+ var startsWith, template;
+
+ lookahead = null;
+ skipComment();
+
+ startsWith = (option.head) ? '`' : '}';
+
+ if (source[index] !== startsWith) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ template = scanTemplate();
+
+ peek();
+
+ return template;
+ }
+
+ function testRegExp(pattern, flags) {
+ var tmp = pattern,
+ value;
+
+ if (flags.indexOf('u') >= 0) {
+ // Replace each astral symbol and every Unicode code point
+ // escape sequence with a single ASCII symbol to avoid throwing on
+ // regular expressions that are only valid in combination with the
+ // `/u` flag.
+ // Note: replacing with the ASCII symbol `x` might cause false
+ // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+ // perfectly valid pattern that is equivalent to `[a-b]`, but it
+ // would be replaced by `[x-b]` which throws an error.
+ tmp = tmp
+ .replace(/\\u\{([0-9a-fA-F]+)\}/g, function ($0, $1) {
+ if (parseInt($1, 16) <= 0x10FFFF) {
+ return 'x';
+ }
+ throwError({}, Messages.InvalidRegExp);
+ })
+ .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, 'x');
+ }
+
+ // First, detect invalid regular expressions.
+ try {
+ value = new RegExp(tmp);
+ } catch (e) {
+ throwError({}, Messages.InvalidRegExp);
+ }
+
+ // Return a regular expression object for this pattern-flag pair, or
+ // `null` in case the current environment doesn't support the flags it
+ // uses.
+ try {
+ return new RegExp(pattern, flags);
+ } catch (exception) {
+ return null;
+ }
+ }
+
+ function scanRegExpBody() {
+ var ch, str, classMarker, terminated, body;
+
+ ch = source[index];
+ assert(ch === '/', 'Regular expression literal must start with a slash');
+ str = source[index++];
+
+ classMarker = false;
+ terminated = false;
+ while (index < length) {
+ ch = source[index++];
+ str += ch;
+ if (ch === '\\') {
+ ch = source[index++];
+ // ECMA-262 7.8.5
+ if (isLineTerminator(ch.charCodeAt(0))) {
+ throwError({}, Messages.UnterminatedRegExp);
+ }
+ str += ch;
+ } else if (isLineTerminator(ch.charCodeAt(0))) {
+ throwError({}, Messages.UnterminatedRegExp);
+ } else if (classMarker) {
+ if (ch === ']') {
+ classMarker = false;
+ }
+ } else {
+ if (ch === '/') {
+ terminated = true;
+ break;
+ } else if (ch === '[') {
+ classMarker = true;
+ }
+ }
+ }
+
+ if (!terminated) {
+ throwError({}, Messages.UnterminatedRegExp);
+ }
+
+ // Exclude leading and trailing slash.
+ body = str.substr(1, str.length - 2);
+ return {
+ value: body,
+ literal: str
+ };
+ }
+
+ function scanRegExpFlags() {
+ var ch, str, flags, restore;
+
+ str = '';
+ flags = '';
+ while (index < length) {
+ ch = source[index];
+ if (!isIdentifierPart(ch.charCodeAt(0))) {
+ break;
+ }
+
+ ++index;
+ if (ch === '\\' && index < length) {
+ ch = source[index];
+ if (ch === 'u') {
+ ++index;
+ restore = index;
+ ch = scanHexEscape('u');
+ if (ch) {
+ flags += ch;
+ for (str += '\\u'; restore < index; ++restore) {
+ str += source[restore];
+ }
+ } else {
+ index = restore;
+ flags += 'u';
+ str += '\\u';
+ }
+ throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
+ } else {
+ str += '\\';
+ throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+ } else {
+ flags += ch;
+ str += ch;
+ }
+ }
+
+ return {
+ value: flags,
+ literal: str
+ };
+ }
+
+ function scanRegExp() {
+ var start, body, flags, value;
+
+ lookahead = null;
+ skipComment();
+ start = index;
+
+ body = scanRegExpBody();
+ flags = scanRegExpFlags();
+ value = testRegExp(body.value, flags.value);
+
+ if (extra.tokenize) {
+ return {
+ type: Token.RegularExpression,
+ value: value,
+ regex: {
+ pattern: body.value,
+ flags: flags.value
+ },
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ return {
+ literal: body.literal + flags.literal,
+ value: value,
+ regex: {
+ pattern: body.value,
+ flags: flags.value
+ },
+ range: [start, index]
+ };
+ }
+
+ function isIdentifierName(token) {
+ return token.type === Token.Identifier ||
+ token.type === Token.Keyword ||
+ token.type === Token.BooleanLiteral ||
+ token.type === Token.NullLiteral;
+ }
+
+ function advanceSlash() {
+ var prevToken,
+ checkToken;
+ // Using the following algorithm:
+ // https://github.com/mozilla/sweet.js/wiki/design
+ prevToken = extra.tokens[extra.tokens.length - 1];
+ if (!prevToken) {
+ // Nothing before that: it cannot be a division.
+ return scanRegExp();
+ }
+ if (prevToken.type === 'Punctuator') {
+ if (prevToken.value === ')') {
+ checkToken = extra.tokens[extra.openParenToken - 1];
+ if (checkToken &&
+ checkToken.type === 'Keyword' &&
+ (checkToken.value === 'if' ||
+ checkToken.value === 'while' ||
+ checkToken.value === 'for' ||
+ checkToken.value === 'with')) {
+ return scanRegExp();
+ }
+ return scanPunctuator();
+ }
+ if (prevToken.value === '}') {
+ // Dividing a function by anything makes little sense,
+ // but we have to check for that.
+ if (extra.tokens[extra.openCurlyToken - 3] &&
+ extra.tokens[extra.openCurlyToken - 3].type === 'Keyword') {
+ // Anonymous function.
+ checkToken = extra.tokens[extra.openCurlyToken - 4];
+ if (!checkToken) {
+ return scanPunctuator();
+ }
+ } else if (extra.tokens[extra.openCurlyToken - 4] &&
+ extra.tokens[extra.openCurlyToken - 4].type === 'Keyword') {
+ // Named function.
+ checkToken = extra.tokens[extra.openCurlyToken - 5];
+ if (!checkToken) {
+ return scanRegExp();
+ }
+ } else {
+ return scanPunctuator();
+ }
+ // checkToken determines whether the function is
+ // a declaration or an expression.
+ if (FnExprTokens.indexOf(checkToken.value) >= 0) {
+ // It is an expression.
+ return scanPunctuator();
+ }
+ // It is a declaration.
+ return scanRegExp();
+ }
+ return scanRegExp();
+ }
+ if (prevToken.type === 'Keyword' && prevToken.value !== 'this') {
+ return scanRegExp();
+ }
+ return scanPunctuator();
+ }
+
+ function advance() {
+ var ch;
+
+ if (!state.inJSXChild) {
+ skipComment();
+ }
+
+ if (index >= length) {
+ return {
+ type: Token.EOF,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [index, index]
+ };
+ }
+
+ if (state.inJSXChild) {
+ return advanceJSXChild();
+ }
+
+ ch = source.charCodeAt(index);
+
+ // Very common: ( and ) and ;
+ if (ch === 40 || ch === 41 || ch === 58) {
+ return scanPunctuator();
+ }
+
+ // String literal starts with single quote (#39) or double quote (#34).
+ if (ch === 39 || ch === 34) {
+ if (state.inJSXTag) {
+ return scanJSXStringLiteral();
+ }
+ return scanStringLiteral();
+ }
+
+ if (state.inJSXTag && isJSXIdentifierStart(ch)) {
+ return scanJSXIdentifier();
+ }
+
+ if (ch === 96) {
+ return scanTemplate();
+ }
+ if (isIdentifierStart(ch)) {
+ return scanIdentifier();
+ }
+
+ // Dot (.) char #46 can also start a floating-point number, hence the need
+ // to check the next character.
+ if (ch === 46) {
+ if (isDecimalDigit(source.charCodeAt(index + 1))) {
+ return scanNumericLiteral();
+ }
+ return scanPunctuator();
+ }
+
+ if (isDecimalDigit(ch)) {
+ return scanNumericLiteral();
+ }
+
+ // Slash (/) char #47 can also start a regex.
+ if (extra.tokenize && ch === 47) {
+ return advanceSlash();
+ }
+
+ return scanPunctuator();
+ }
+
+ function lex() {
+ var token;
+
+ token = lookahead;
+ index = token.range[1];
+ lineNumber = token.lineNumber;
+ lineStart = token.lineStart;
+
+ lookahead = advance();
+
+ index = token.range[1];
+ lineNumber = token.lineNumber;
+ lineStart = token.lineStart;
+
+ return token;
+ }
+
+ function peek() {
+ var pos, line, start;
+
+ pos = index;
+ line = lineNumber;
+ start = lineStart;
+ lookahead = advance();
+ index = pos;
+ lineNumber = line;
+ lineStart = start;
+ }
+
+ function lookahead2() {
+ var adv, pos, line, start, result;
+
+ // If we are collecting the tokens, don't grab the next one yet.
+ /* istanbul ignore next */
+ adv = (typeof extra.advance === 'function') ? extra.advance : advance;
+
+ pos = index;
+ line = lineNumber;
+ start = lineStart;
+
+ // Scan for the next immediate token.
+ /* istanbul ignore if */
+ if (lookahead === null) {
+ lookahead = adv();
+ }
+ index = lookahead.range[1];
+ lineNumber = lookahead.lineNumber;
+ lineStart = lookahead.lineStart;
+
+ // Grab the token right after.
+ result = adv();
+ index = pos;
+ lineNumber = line;
+ lineStart = start;
+
+ return result;
+ }
+
+ function rewind(token) {
+ index = token.range[0];
+ lineNumber = token.lineNumber;
+ lineStart = token.lineStart;
+ lookahead = token;
+ }
+
+ function markerCreate() {
+ if (!extra.loc && !extra.range) {
+ return undefined;
+ }
+ skipComment();
+ return {offset: index, line: lineNumber, col: index - lineStart};
+ }
+
+ function markerCreatePreserveWhitespace() {
+ if (!extra.loc && !extra.range) {
+ return undefined;
+ }
+ return {offset: index, line: lineNumber, col: index - lineStart};
+ }
+
+ function processComment(node) {
+ var lastChild,
+ trailingComments,
+ bottomRight = extra.bottomRightStack,
+ last = bottomRight[bottomRight.length - 1];
+
+ if (node.type === Syntax.Program) {
+ /* istanbul ignore else */
+ if (node.body.length > 0) {
+ return;
+ }
+ }
+
+ if (extra.trailingComments.length > 0) {
+ if (extra.trailingComments[0].range[0] >= node.range[1]) {
+ trailingComments = extra.trailingComments;
+ extra.trailingComments = [];
+ } else {
+ extra.trailingComments.length = 0;
+ }
+ } else {
+ if (last && last.trailingComments && last.trailingComments[0].range[0] >= node.range[1]) {
+ trailingComments = last.trailingComments;
+ delete last.trailingComments;
+ }
+ }
+
+ // Eating the stack.
+ if (last) {
+ while (last && last.range[0] >= node.range[0]) {
+ lastChild = last;
+ last = bottomRight.pop();
+ }
+ }
+
+ if (lastChild) {
+ if (lastChild.leadingComments && lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= node.range[0]) {
+ node.leadingComments = lastChild.leadingComments;
+ delete lastChild.leadingComments;
+ }
+ } else if (extra.leadingComments.length > 0 && extra.leadingComments[extra.leadingComments.length - 1].range[1] <= node.range[0]) {
+ node.leadingComments = extra.leadingComments;
+ extra.leadingComments = [];
+ }
+
+ if (trailingComments) {
+ node.trailingComments = trailingComments;
+ }
+
+ bottomRight.push(node);
+ }
+
+ function markerApply(marker, node) {
+ if (extra.range) {
+ node.range = [marker.offset, index];
+ }
+ if (extra.loc) {
+ node.loc = {
+ start: {
+ line: marker.line,
+ column: marker.col
+ },
+ end: {
+ line: lineNumber,
+ column: index - lineStart
+ }
+ };
+ node = delegate.postProcess(node);
+ }
+ if (extra.attachComment) {
+ processComment(node);
+ }
+ return node;
+ }
+
+ SyntaxTreeDelegate = {
+
+ name: 'SyntaxTree',
+
+ postProcess: function (node) {
+ return node;
+ },
+
+ createArrayExpression: function (elements) {
+ return {
+ type: Syntax.ArrayExpression,
+ elements: elements
+ };
+ },
+
+ createAssignmentExpression: function (operator, left, right) {
+ return {
+ type: Syntax.AssignmentExpression,
+ operator: operator,
+ left: left,
+ right: right
+ };
+ },
+
+ createBinaryExpression: function (operator, left, right) {
+ var type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression :
+ Syntax.BinaryExpression;
+ return {
+ type: type,
+ operator: operator,
+ left: left,
+ right: right
+ };
+ },
+
+ createBlockStatement: function (body) {
+ return {
+ type: Syntax.BlockStatement,
+ body: body
+ };
+ },
+
+ createBreakStatement: function (label) {
+ return {
+ type: Syntax.BreakStatement,
+ label: label
+ };
+ },
+
+ createCallExpression: function (callee, args) {
+ return {
+ type: Syntax.CallExpression,
+ callee: callee,
+ 'arguments': args
+ };
+ },
+
+ createCatchClause: function (param, body) {
+ return {
+ type: Syntax.CatchClause,
+ param: param,
+ body: body
+ };
+ },
+
+ createConditionalExpression: function (test, consequent, alternate) {
+ return {
+ type: Syntax.ConditionalExpression,
+ test: test,
+ consequent: consequent,
+ alternate: alternate
+ };
+ },
+
+ createContinueStatement: function (label) {
+ return {
+ type: Syntax.ContinueStatement,
+ label: label
+ };
+ },
+
+ createDebuggerStatement: function () {
+ return {
+ type: Syntax.DebuggerStatement
+ };
+ },
+
+ createDoWhileStatement: function (body, test) {
+ return {
+ type: Syntax.DoWhileStatement,
+ body: body,
+ test: test
+ };
+ },
+
+ createEmptyStatement: function () {
+ return {
+ type: Syntax.EmptyStatement
+ };
+ },
+
+ createExpressionStatement: function (expression) {
+ return {
+ type: Syntax.ExpressionStatement,
+ expression: expression
+ };
+ },
+
+ createForStatement: function (init, test, update, body) {
+ return {
+ type: Syntax.ForStatement,
+ init: init,
+ test: test,
+ update: update,
+ body: body
+ };
+ },
+
+ createForInStatement: function (left, right, body) {
+ return {
+ type: Syntax.ForInStatement,
+ left: left,
+ right: right,
+ body: body,
+ each: false
+ };
+ },
+
+ createForOfStatement: function (left, right, body) {
+ return {
+ type: Syntax.ForOfStatement,
+ left: left,
+ right: right,
+ body: body
+ };
+ },
+
+ createFunctionDeclaration: function (id, params, defaults, body, rest, generator, expression,
+ isAsync, returnType, typeParameters) {
+ var funDecl = {
+ type: Syntax.FunctionDeclaration,
+ id: id,
+ params: params,
+ defaults: defaults,
+ body: body,
+ rest: rest,
+ generator: generator,
+ expression: expression,
+ returnType: returnType,
+ typeParameters: typeParameters
+ };
+
+ if (isAsync) {
+ funDecl.async = true;
+ }
+
+ return funDecl;
+ },
+
+ createFunctionExpression: function (id, params, defaults, body, rest, generator, expression,
+ isAsync, returnType, typeParameters) {
+ var funExpr = {
+ type: Syntax.FunctionExpression,
+ id: id,
+ params: params,
+ defaults: defaults,
+ body: body,
+ rest: rest,
+ generator: generator,
+ expression: expression,
+ returnType: returnType,
+ typeParameters: typeParameters
+ };
+
+ if (isAsync) {
+ funExpr.async = true;
+ }
+
+ return funExpr;
+ },
+
+ createIdentifier: function (name) {
+ return {
+ type: Syntax.Identifier,
+ name: name,
+ // Only here to initialize the shape of the object to ensure
+ // that the 'typeAnnotation' key is ordered before others that
+ // are added later (like 'loc' and 'range'). This just helps
+ // keep the shape of Identifier nodes consistent with everything
+ // else.
+ typeAnnotation: undefined,
+ optional: undefined
+ };
+ },
+
+ createTypeAnnotation: function (typeAnnotation) {
+ return {
+ type: Syntax.TypeAnnotation,
+ typeAnnotation: typeAnnotation
+ };
+ },
+
+ createTypeCast: function (expression, typeAnnotation) {
+ return {
+ type: Syntax.TypeCastExpression,
+ expression: expression,
+ typeAnnotation: typeAnnotation
+ };
+ },
+
+ createFunctionTypeAnnotation: function (params, returnType, rest, typeParameters) {
+ return {
+ type: Syntax.FunctionTypeAnnotation,
+ params: params,
+ returnType: returnType,
+ rest: rest,
+ typeParameters: typeParameters
+ };
+ },
+
+ createFunctionTypeParam: function (name, typeAnnotation, optional) {
+ return {
+ type: Syntax.FunctionTypeParam,
+ name: name,
+ typeAnnotation: typeAnnotation,
+ optional: optional
+ };
+ },
+
+ createNullableTypeAnnotation: function (typeAnnotation) {
+ return {
+ type: Syntax.NullableTypeAnnotation,
+ typeAnnotation: typeAnnotation
+ };
+ },
+
+ createArrayTypeAnnotation: function (elementType) {
+ return {
+ type: Syntax.ArrayTypeAnnotation,
+ elementType: elementType
+ };
+ },
+
+ createGenericTypeAnnotation: function (id, typeParameters) {
+ return {
+ type: Syntax.GenericTypeAnnotation,
+ id: id,
+ typeParameters: typeParameters
+ };
+ },
+
+ createQualifiedTypeIdentifier: function (qualification, id) {
+ return {
+ type: Syntax.QualifiedTypeIdentifier,
+ qualification: qualification,
+ id: id
+ };
+ },
+
+ createTypeParameterDeclaration: function (params) {
+ return {
+ type: Syntax.TypeParameterDeclaration,
+ params: params
+ };
+ },
+
+ createTypeParameterInstantiation: function (params) {
+ return {
+ type: Syntax.TypeParameterInstantiation,
+ params: params
+ };
+ },
+
+ createAnyTypeAnnotation: function () {
+ return {
+ type: Syntax.AnyTypeAnnotation
+ };
+ },
+
+ createBooleanTypeAnnotation: function () {
+ return {
+ type: Syntax.BooleanTypeAnnotation
+ };
+ },
+
+ createNumberTypeAnnotation: function () {
+ return {
+ type: Syntax.NumberTypeAnnotation
+ };
+ },
+
+ createStringTypeAnnotation: function () {
+ return {
+ type: Syntax.StringTypeAnnotation
+ };
+ },
+
+ createStringLiteralTypeAnnotation: function (token) {
+ return {
+ type: Syntax.StringLiteralTypeAnnotation,
+ value: token.value,
+ raw: source.slice(token.range[0], token.range[1])
+ };
+ },
+
+ createVoidTypeAnnotation: function () {
+ return {
+ type: Syntax.VoidTypeAnnotation
+ };
+ },
+
+ createTypeofTypeAnnotation: function (argument) {
+ return {
+ type: Syntax.TypeofTypeAnnotation,
+ argument: argument
+ };
+ },
+
+ createTupleTypeAnnotation: function (types) {
+ return {
+ type: Syntax.TupleTypeAnnotation,
+ types: types
+ };
+ },
+
+ createObjectTypeAnnotation: function (properties, indexers, callProperties) {
+ return {
+ type: Syntax.ObjectTypeAnnotation,
+ properties: properties,
+ indexers: indexers,
+ callProperties: callProperties
+ };
+ },
+
+ createObjectTypeIndexer: function (id, key, value, isStatic) {
+ return {
+ type: Syntax.ObjectTypeIndexer,
+ id: id,
+ key: key,
+ value: value,
+ "static": isStatic
+ };
+ },
+
+ createObjectTypeCallProperty: function (value, isStatic) {
+ return {
+ type: Syntax.ObjectTypeCallProperty,
+ value: value,
+ "static": isStatic
+ };
+ },
+
+ createObjectTypeProperty: function (key, value, optional, isStatic) {
+ return {
+ type: Syntax.ObjectTypeProperty,
+ key: key,
+ value: value,
+ optional: optional,
+ "static": isStatic
+ };
+ },
+
+ createUnionTypeAnnotation: function (types) {
+ return {
+ type: Syntax.UnionTypeAnnotation,
+ types: types
+ };
+ },
+
+ createIntersectionTypeAnnotation: function (types) {
+ return {
+ type: Syntax.IntersectionTypeAnnotation,
+ types: types
+ };
+ },
+
+ createTypeAlias: function (id, typeParameters, right) {
+ return {
+ type: Syntax.TypeAlias,
+ id: id,
+ typeParameters: typeParameters,
+ right: right
+ };
+ },
+
+ createInterface: function (id, typeParameters, body, extended) {
+ return {
+ type: Syntax.InterfaceDeclaration,
+ id: id,
+ typeParameters: typeParameters,
+ body: body,
+ "extends": extended
+ };
+ },
+
+ createInterfaceExtends: function (id, typeParameters) {
+ return {
+ type: Syntax.InterfaceExtends,
+ id: id,
+ typeParameters: typeParameters
+ };
+ },
+
+ createDeclareFunction: function (id) {
+ return {
+ type: Syntax.DeclareFunction,
+ id: id
+ };
+ },
+
+ createDeclareVariable: function (id) {
+ return {
+ type: Syntax.DeclareVariable,
+ id: id
+ };
+ },
+
+ createDeclareModule: function (id, body) {
+ return {
+ type: Syntax.DeclareModule,
+ id: id,
+ body: body
+ };
+ },
+
+ createJSXAttribute: function (name, value) {
+ return {
+ type: Syntax.JSXAttribute,
+ name: name,
+ value: value || null
+ };
+ },
+
+ createJSXSpreadAttribute: function (argument) {
+ return {
+ type: Syntax.JSXSpreadAttribute,
+ argument: argument
+ };
+ },
+
+ createJSXIdentifier: function (name) {
+ return {
+ type: Syntax.JSXIdentifier,
+ name: name
+ };
+ },
+
+ createJSXNamespacedName: function (namespace, name) {
+ return {
+ type: Syntax.JSXNamespacedName,
+ namespace: namespace,
+ name: name
+ };
+ },
+
+ createJSXMemberExpression: function (object, property) {
+ return {
+ type: Syntax.JSXMemberExpression,
+ object: object,
+ property: property
+ };
+ },
+
+ createJSXElement: function (openingElement, closingElement, children) {
+ return {
+ type: Syntax.JSXElement,
+ openingElement: openingElement,
+ closingElement: closingElement,
+ children: children
+ };
+ },
+
+ createJSXEmptyExpression: function () {
+ return {
+ type: Syntax.JSXEmptyExpression
+ };
+ },
+
+ createJSXExpressionContainer: function (expression) {
+ return {
+ type: Syntax.JSXExpressionContainer,
+ expression: expression
+ };
+ },
+
+ createJSXOpeningElement: function (name, attributes, selfClosing) {
+ return {
+ type: Syntax.JSXOpeningElement,
+ name: name,
+ selfClosing: selfClosing,
+ attributes: attributes
+ };
+ },
+
+ createJSXClosingElement: function (name) {
+ return {
+ type: Syntax.JSXClosingElement,
+ name: name
+ };
+ },
+
+ createIfStatement: function (test, consequent, alternate) {
+ return {
+ type: Syntax.IfStatement,
+ test: test,
+ consequent: consequent,
+ alternate: alternate
+ };
+ },
+
+ createLabeledStatement: function (label, body) {
+ return {
+ type: Syntax.LabeledStatement,
+ label: label,
+ body: body
+ };
+ },
+
+ createLiteral: function (token) {
+ var object = {
+ type: Syntax.Literal,
+ value: token.value,
+ raw: source.slice(token.range[0], token.range[1])
+ };
+ if (token.regex) {
+ object.regex = token.regex;
+ }
+ return object;
+ },
+
+ createMemberExpression: function (accessor, object, property) {
+ return {
+ type: Syntax.MemberExpression,
+ computed: accessor === '[',
+ object: object,
+ property: property
+ };
+ },
+
+ createNewExpression: function (callee, args) {
+ return {
+ type: Syntax.NewExpression,
+ callee: callee,
+ 'arguments': args
+ };
+ },
+
+ createObjectExpression: function (properties) {
+ return {
+ type: Syntax.ObjectExpression,
+ properties: properties
+ };
+ },
+
+ createPostfixExpression: function (operator, argument) {
+ return {
+ type: Syntax.UpdateExpression,
+ operator: operator,
+ argument: argument,
+ prefix: false
+ };
+ },
+
+ createProgram: function (body) {
+ return {
+ type: Syntax.Program,
+ body: body
+ };
+ },
+
+ createProperty: function (kind, key, value, method, shorthand, computed) {
+ return {
+ type: Syntax.Property,
+ key: key,
+ value: value,
+ kind: kind,
+ method: method,
+ shorthand: shorthand,
+ computed: computed
+ };
+ },
+
+ createReturnStatement: function (argument) {
+ return {
+ type: Syntax.ReturnStatement,
+ argument: argument
+ };
+ },
+
+ createSequenceExpression: function (expressions) {
+ return {
+ type: Syntax.SequenceExpression,
+ expressions: expressions
+ };
+ },
+
+ createSwitchCase: function (test, consequent) {
+ return {
+ type: Syntax.SwitchCase,
+ test: test,
+ consequent: consequent
+ };
+ },
+
+ createSwitchStatement: function (discriminant, cases) {
+ return {
+ type: Syntax.SwitchStatement,
+ discriminant: discriminant,
+ cases: cases
+ };
+ },
+
+ createThisExpression: function () {
+ return {
+ type: Syntax.ThisExpression
+ };
+ },
+
+ createThrowStatement: function (argument) {
+ return {
+ type: Syntax.ThrowStatement,
+ argument: argument
+ };
+ },
+
+ createTryStatement: function (block, guardedHandlers, handlers, finalizer) {
+ return {
+ type: Syntax.TryStatement,
+ block: block,
+ guardedHandlers: guardedHandlers,
+ handlers: handlers,
+ finalizer: finalizer
+ };
+ },
+
+ createUnaryExpression: function (operator, argument) {
+ if (operator === '++' || operator === '--') {
+ return {
+ type: Syntax.UpdateExpression,
+ operator: operator,
+ argument: argument,
+ prefix: true
+ };
+ }
+ return {
+ type: Syntax.UnaryExpression,
+ operator: operator,
+ argument: argument,
+ prefix: true
+ };
+ },
+
+ createVariableDeclaration: function (declarations, kind) {
+ return {
+ type: Syntax.VariableDeclaration,
+ declarations: declarations,
+ kind: kind
+ };
+ },
+
+ createVariableDeclarator: function (id, init) {
+ return {
+ type: Syntax.VariableDeclarator,
+ id: id,
+ init: init
+ };
+ },
+
+ createWhileStatement: function (test, body) {
+ return {
+ type: Syntax.WhileStatement,
+ test: test,
+ body: body
+ };
+ },
+
+ createWithStatement: function (object, body) {
+ return {
+ type: Syntax.WithStatement,
+ object: object,
+ body: body
+ };
+ },
+
+ createTemplateElement: function (value, tail) {
+ return {
+ type: Syntax.TemplateElement,
+ value: value,
+ tail: tail
+ };
+ },
+
+ createTemplateLiteral: function (quasis, expressions) {
+ return {
+ type: Syntax.TemplateLiteral,
+ quasis: quasis,
+ expressions: expressions
+ };
+ },
+
+ createSpreadElement: function (argument) {
+ return {
+ type: Syntax.SpreadElement,
+ argument: argument
+ };
+ },
+
+ createSpreadProperty: function (argument) {
+ return {
+ type: Syntax.SpreadProperty,
+ argument: argument
+ };
+ },
+
+ createTaggedTemplateExpression: function (tag, quasi) {
+ return {
+ type: Syntax.TaggedTemplateExpression,
+ tag: tag,
+ quasi: quasi
+ };
+ },
+
+ createArrowFunctionExpression: function (params, defaults, body, rest, expression, isAsync) {
+ var arrowExpr = {
+ type: Syntax.ArrowFunctionExpression,
+ id: null,
+ params: params,
+ defaults: defaults,
+ body: body,
+ rest: rest,
+ generator: false,
+ expression: expression
+ };
+
+ if (isAsync) {
+ arrowExpr.async = true;
+ }
+
+ return arrowExpr;
+ },
+
+ createMethodDefinition: function (propertyType, kind, key, value, computed) {
+ return {
+ type: Syntax.MethodDefinition,
+ key: key,
+ value: value,
+ kind: kind,
+ 'static': propertyType === ClassPropertyType["static"],
+ computed: computed
+ };
+ },
+
+ createClassProperty: function (key, typeAnnotation, computed, isStatic) {
+ return {
+ type: Syntax.ClassProperty,
+ key: key,
+ typeAnnotation: typeAnnotation,
+ computed: computed,
+ "static": isStatic
+ };
+ },
+
+ createClassBody: function (body) {
+ return {
+ type: Syntax.ClassBody,
+ body: body
+ };
+ },
+
+ createClassImplements: function (id, typeParameters) {
+ return {
+ type: Syntax.ClassImplements,
+ id: id,
+ typeParameters: typeParameters
+ };
+ },
+
+ createClassExpression: function (id, superClass, body, typeParameters, superTypeParameters, implemented) {
+ return {
+ type: Syntax.ClassExpression,
+ id: id,
+ superClass: superClass,
+ body: body,
+ typeParameters: typeParameters,
+ superTypeParameters: superTypeParameters,
+ "implements": implemented
+ };
+ },
+
+ createClassDeclaration: function (id, superClass, body, typeParameters, superTypeParameters, implemented) {
+ return {
+ type: Syntax.ClassDeclaration,
+ id: id,
+ superClass: superClass,
+ body: body,
+ typeParameters: typeParameters,
+ superTypeParameters: superTypeParameters,
+ "implements": implemented
+ };
+ },
+
+ createModuleSpecifier: function (token) {
+ return {
+ type: Syntax.ModuleSpecifier,
+ value: token.value,
+ raw: source.slice(token.range[0], token.range[1])
+ };
+ },
+
+ createExportSpecifier: function (id, name) {
+ return {
+ type: Syntax.ExportSpecifier,
+ id: id,
+ name: name
+ };
+ },
+
+ createExportBatchSpecifier: function () {
+ return {
+ type: Syntax.ExportBatchSpecifier
+ };
+ },
+
+ createImportDefaultSpecifier: function (id) {
+ return {
+ type: Syntax.ImportDefaultSpecifier,
+ id: id
+ };
+ },
+
+ createImportNamespaceSpecifier: function (id) {
+ return {
+ type: Syntax.ImportNamespaceSpecifier,
+ id: id
+ };
+ },
+
+ createExportDeclaration: function (isDefault, declaration, specifiers, src) {
+ return {
+ type: Syntax.ExportDeclaration,
+ 'default': !!isDefault,
+ declaration: declaration,
+ specifiers: specifiers,
+ source: src
+ };
+ },
+
+ createImportSpecifier: function (id, name) {
+ return {
+ type: Syntax.ImportSpecifier,
+ id: id,
+ name: name
+ };
+ },
+
+ createImportDeclaration: function (specifiers, src, isType) {
+ return {
+ type: Syntax.ImportDeclaration,
+ specifiers: specifiers,
+ source: src,
+ isType: isType
+ };
+ },
+
+ createYieldExpression: function (argument, dlg) {
+ return {
+ type: Syntax.YieldExpression,
+ argument: argument,
+ delegate: dlg
+ };
+ },
+
+ createAwaitExpression: function (argument) {
+ return {
+ type: Syntax.AwaitExpression,
+ argument: argument
+ };
+ },
+
+ createComprehensionExpression: function (filter, blocks, body) {
+ return {
+ type: Syntax.ComprehensionExpression,
+ filter: filter,
+ blocks: blocks,
+ body: body
+ };
+ }
+
+ };
+
+ // Return true if there is a line terminator before the next token.
+
+ function peekLineTerminator() {
+ var pos, line, start, found;
+
+ pos = index;
+ line = lineNumber;
+ start = lineStart;
+ skipComment();
+ found = lineNumber !== line;
+ index = pos;
+ lineNumber = line;
+ lineStart = start;
+
+ return found;
+ }
+
+ // Throw an exception
+
+ function throwError(token, messageFormat) {
+ var error,
+ args = Array.prototype.slice.call(arguments, 2),
+ msg = messageFormat.replace(
+ /%(\d)/g,
+ function (whole, idx) {
+ assert(idx < args.length, 'Message reference must be in range');
+ return args[idx];
+ }
+ );
+
+ if (typeof token.lineNumber === 'number') {
+ error = new Error('Line ' + token.lineNumber + ': ' + msg);
+ error.index = token.range[0];
+ error.lineNumber = token.lineNumber;
+ error.column = token.range[0] - lineStart + 1;
+ } else {
+ error = new Error('Line ' + lineNumber + ': ' + msg);
+ error.index = index;
+ error.lineNumber = lineNumber;
+ error.column = index - lineStart + 1;
+ }
+
+ error.description = msg;
+ throw error;
+ }
+
+ function throwErrorTolerant() {
+ try {
+ throwError.apply(null, arguments);
+ } catch (e) {
+ if (extra.errors) {
+ extra.errors.push(e);
+ } else {
+ throw e;
+ }
+ }
+ }
+
+
+ // Throw an exception because of the token.
+
+ function throwUnexpected(token) {
+ if (token.type === Token.EOF) {
+ throwError(token, Messages.UnexpectedEOS);
+ }
+
+ if (token.type === Token.NumericLiteral) {
+ throwError(token, Messages.UnexpectedNumber);
+ }
+
+ if (token.type === Token.StringLiteral || token.type === Token.JSXText) {
+ throwError(token, Messages.UnexpectedString);
+ }
+
+ if (token.type === Token.Identifier) {
+ throwError(token, Messages.UnexpectedIdentifier);
+ }
+
+ if (token.type === Token.Keyword) {
+ if (isFutureReservedWord(token.value)) {
+ throwError(token, Messages.UnexpectedReserved);
+ } else if (strict && isStrictModeReservedWord(token.value)) {
+ throwErrorTolerant(token, Messages.StrictReservedWord);
+ return;
+ }
+ throwError(token, Messages.UnexpectedToken, token.value);
+ }
+
+ if (token.type === Token.Template) {
+ throwError(token, Messages.UnexpectedTemplate, token.value.raw);
+ }
+
+ // BooleanLiteral, NullLiteral, or Punctuator.
+ throwError(token, Messages.UnexpectedToken, token.value);
+ }
+
+ // Expect the next token to match the specified punctuator.
+ // If not, an exception will be thrown.
+
+ function expect(value) {
+ var token = lex();
+ if (token.type !== Token.Punctuator || token.value !== value) {
+ throwUnexpected(token);
+ }
+ }
+
+ // Expect the next token to match the specified keyword.
+ // If not, an exception will be thrown.
+
+ function expectKeyword(keyword, contextual) {
+ var token = lex();
+ if (token.type !== (contextual ? Token.Identifier : Token.Keyword) ||
+ token.value !== keyword) {
+ throwUnexpected(token);
+ }
+ }
+
+ // Expect the next token to match the specified contextual keyword.
+ // If not, an exception will be thrown.
+
+ function expectContextualKeyword(keyword) {
+ return expectKeyword(keyword, true);
+ }
+
+ // Return true if the next token matches the specified punctuator.
+
+ function match(value) {
+ return lookahead.type === Token.Punctuator && lookahead.value === value;
+ }
+
+ // Return true if the next token matches the specified keyword
+
+ function matchKeyword(keyword, contextual) {
+ var expectedType = contextual ? Token.Identifier : Token.Keyword;
+ return lookahead.type === expectedType && lookahead.value === keyword;
+ }
+
+ // Return true if the next token matches the specified contextual keyword
+
+ function matchContextualKeyword(keyword) {
+ return matchKeyword(keyword, true);
+ }
+
+ // Return true if the next token is an assignment operator
+
+ function matchAssign() {
+ var op;
+
+ if (lookahead.type !== Token.Punctuator) {
+ return false;
+ }
+ op = lookahead.value;
+ return op === '=' ||
+ op === '*=' ||
+ op === '/=' ||
+ op === '%=' ||
+ op === '+=' ||
+ op === '-=' ||
+ op === '<<=' ||
+ op === '>>=' ||
+ op === '>>>=' ||
+ op === '&=' ||
+ op === '^=' ||
+ op === '|=';
+ }
+
+ // Note that 'yield' is treated as a keyword in strict mode, but a
+ // contextual keyword (identifier) in non-strict mode, so we need to
+ // use matchKeyword('yield', false) and matchKeyword('yield', true)
+ // (i.e. matchContextualKeyword) appropriately.
+ function matchYield() {
+ return state.yieldAllowed && matchKeyword('yield', !strict);
+ }
+
+ function matchAsync() {
+ var backtrackToken = lookahead, matches = false;
+
+ if (matchContextualKeyword('async')) {
+ lex(); // Make sure peekLineTerminator() starts after 'async'.
+ matches = !peekLineTerminator();
+ rewind(backtrackToken); // Revert the lex().
+ }
+
+ return matches;
+ }
+
+ function matchAwait() {
+ return state.awaitAllowed && matchContextualKeyword('await');
+ }
+
+ function consumeSemicolon() {
+ var line, oldIndex = index, oldLineNumber = lineNumber,
+ oldLineStart = lineStart, oldLookahead = lookahead;
+
+ // Catch the very common case first: immediately a semicolon (char #59).
+ if (source.charCodeAt(index) === 59) {
+ lex();
+ return;
+ }
+
+ line = lineNumber;
+ skipComment();
+ if (lineNumber !== line) {
+ index = oldIndex;
+ lineNumber = oldLineNumber;
+ lineStart = oldLineStart;
+ lookahead = oldLookahead;
+ return;
+ }
+
+ if (match(';')) {
+ lex();
+ return;
+ }
+
+ if (lookahead.type !== Token.EOF && !match('}')) {
+ throwUnexpected(lookahead);
+ }
+ }
+
+ // Return true if provided expression is LeftHandSideExpression
+
+ function isLeftHandSide(expr) {
+ return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression;
+ }
+
+ function isAssignableLeftHandSide(expr) {
+ return isLeftHandSide(expr) || expr.type === Syntax.ObjectPattern || expr.type === Syntax.ArrayPattern;
+ }
+
+ // 11.1.4 Array Initialiser
+
+ function parseArrayInitialiser() {
+ var elements = [], blocks = [], filter = null, tmp, possiblecomprehension = true,
+ marker = markerCreate();
+
+ expect('[');
+ while (!match(']')) {
+ if (lookahead.value === 'for' &&
+ lookahead.type === Token.Keyword) {
+ if (!possiblecomprehension) {
+ throwError({}, Messages.ComprehensionError);
+ }
+ matchKeyword('for');
+ tmp = parseForStatement({ignoreBody: true});
+ tmp.of = tmp.type === Syntax.ForOfStatement;
+ tmp.type = Syntax.ComprehensionBlock;
+ if (tmp.left.kind) { // can't be let or const
+ throwError({}, Messages.ComprehensionError);
+ }
+ blocks.push(tmp);
+ } else if (lookahead.value === 'if' &&
+ lookahead.type === Token.Keyword) {
+ if (!possiblecomprehension) {
+ throwError({}, Messages.ComprehensionError);
+ }
+ expectKeyword('if');
+ expect('(');
+ filter = parseExpression();
+ expect(')');
+ } else if (lookahead.value === ',' &&
+ lookahead.type === Token.Punctuator) {
+ possiblecomprehension = false; // no longer allowed.
+ lex();
+ elements.push(null);
+ } else {
+ tmp = parseSpreadOrAssignmentExpression();
+ elements.push(tmp);
+ if (tmp && tmp.type === Syntax.SpreadElement) {
+ if (!match(']')) {
+ throwError({}, Messages.ElementAfterSpreadElement);
+ }
+ } else if (!(match(']') || matchKeyword('for') || matchKeyword('if'))) {
+ expect(','); // this lexes.
+ possiblecomprehension = false;
+ }
+ }
+ }
+
+ expect(']');
+
+ if (filter && !blocks.length) {
+ throwError({}, Messages.ComprehensionRequiresBlock);
+ }
+
+ if (blocks.length) {
+ if (elements.length !== 1) {
+ throwError({}, Messages.ComprehensionError);
+ }
+ return markerApply(marker, delegate.createComprehensionExpression(filter, blocks, elements[0]));
+ }
+ return markerApply(marker, delegate.createArrayExpression(elements));
+ }
+
+ // 11.1.5 Object Initialiser
+
+ function parsePropertyFunction(options) {
+ var previousStrict, previousYieldAllowed, previousAwaitAllowed,
+ params, defaults, body, marker = markerCreate();
+
+ previousStrict = strict;
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = options.generator;
+ previousAwaitAllowed = state.awaitAllowed;
+ state.awaitAllowed = options.async;
+ params = options.params || [];
+ defaults = options.defaults || [];
+
+ body = parseConciseBody();
+ if (options.name && strict && isRestrictedWord(params[0].name)) {
+ throwErrorTolerant(options.name, Messages.StrictParamName);
+ }
+ strict = previousStrict;
+ state.yieldAllowed = previousYieldAllowed;
+ state.awaitAllowed = previousAwaitAllowed;
+
+ return markerApply(marker, delegate.createFunctionExpression(
+ null,
+ params,
+ defaults,
+ body,
+ options.rest || null,
+ options.generator,
+ body.type !== Syntax.BlockStatement,
+ options.async,
+ options.returnType,
+ options.typeParameters
+ ));
+ }
+
+
+ function parsePropertyMethodFunction(options) {
+ var previousStrict, tmp, method;
+
+ previousStrict = strict;
+ strict = true;
+
+ tmp = parseParams();
+
+ if (tmp.stricted) {
+ throwErrorTolerant(tmp.stricted, tmp.message);
+ }
+
+ method = parsePropertyFunction({
+ params: tmp.params,
+ defaults: tmp.defaults,
+ rest: tmp.rest,
+ generator: options.generator,
+ async: options.async,
+ returnType: tmp.returnType,
+ typeParameters: options.typeParameters
+ });
+
+ strict = previousStrict;
+
+ return method;
+ }
+
+
+ function parseObjectPropertyKey() {
+ var marker = markerCreate(),
+ token = lex(),
+ propertyKey,
+ result;
+
+ // Note: This function is called only from parseObjectProperty(), where
+ // EOF and Punctuator tokens are already filtered out.
+
+ if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
+ if (strict && token.octal) {
+ throwErrorTolerant(token, Messages.StrictOctalLiteral);
+ }
+ return markerApply(marker, delegate.createLiteral(token));
+ }
+
+ if (token.type === Token.Punctuator && token.value === '[') {
+ // For computed properties we should skip the [ and ], and
+ // capture in marker only the assignment expression itself.
+ marker = markerCreate();
+ propertyKey = parseAssignmentExpression();
+ result = markerApply(marker, propertyKey);
+ expect(']');
+ return result;
+ }
+
+ return markerApply(marker, delegate.createIdentifier(token.value));
+ }
+
+ function parseObjectProperty() {
+ var token, key, id, param, computed,
+ marker = markerCreate(), returnType, typeParameters;
+
+ token = lookahead;
+ computed = (token.value === '[' && token.type === Token.Punctuator);
+
+ if (token.type === Token.Identifier || computed || matchAsync()) {
+ id = parseObjectPropertyKey();
+
+ if (match(':')) {
+ lex();
+
+ return markerApply(
+ marker,
+ delegate.createProperty(
+ 'init',
+ id,
+ parseAssignmentExpression(),
+ false,
+ false,
+ computed
+ )
+ );
+ }
+
+ if (match('(') || match('<')) {
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+ return markerApply(
+ marker,
+ delegate.createProperty(
+ 'init',
+ id,
+ parsePropertyMethodFunction({
+ generator: false,
+ async: false,
+ typeParameters: typeParameters
+ }),
+ true,
+ false,
+ computed
+ )
+ );
+ }
+
+ // Property Assignment: Getter and Setter.
+
+ if (token.value === 'get') {
+ computed = (lookahead.value === '[');
+ key = parseObjectPropertyKey();
+
+ expect('(');
+ expect(')');
+ if (match(':')) {
+ returnType = parseTypeAnnotation();
+ }
+
+ return markerApply(
+ marker,
+ delegate.createProperty(
+ 'get',
+ key,
+ parsePropertyFunction({
+ generator: false,
+ async: false,
+ returnType: returnType
+ }),
+ false,
+ false,
+ computed
+ )
+ );
+ }
+
+ if (token.value === 'set') {
+ computed = (lookahead.value === '[');
+ key = parseObjectPropertyKey();
+
+ expect('(');
+ token = lookahead;
+ param = [ parseTypeAnnotatableIdentifier() ];
+ expect(')');
+ if (match(':')) {
+ returnType = parseTypeAnnotation();
+ }
+
+ return markerApply(
+ marker,
+ delegate.createProperty(
+ 'set',
+ key,
+ parsePropertyFunction({
+ params: param,
+ generator: false,
+ async: false,
+ name: token,
+ returnType: returnType
+ }),
+ false,
+ false,
+ computed
+ )
+ );
+ }
+
+ if (token.value === 'async') {
+ computed = (lookahead.value === '[');
+ key = parseObjectPropertyKey();
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ return markerApply(
+ marker,
+ delegate.createProperty(
+ 'init',
+ key,
+ parsePropertyMethodFunction({
+ generator: false,
+ async: true,
+ typeParameters: typeParameters
+ }),
+ true,
+ false,
+ computed
+ )
+ );
+ }
+
+ if (computed) {
+ // Computed properties can only be used with full notation.
+ throwUnexpected(lookahead);
+ }
+
+ return markerApply(
+ marker,
+ delegate.createProperty('init', id, id, false, true, false)
+ );
+ }
+
+ if (token.type === Token.EOF || token.type === Token.Punctuator) {
+ if (!match('*')) {
+ throwUnexpected(token);
+ }
+ lex();
+
+ computed = (lookahead.type === Token.Punctuator && lookahead.value === '[');
+
+ id = parseObjectPropertyKey();
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ if (!match('(')) {
+ throwUnexpected(lex());
+ }
+
+ return markerApply(marker, delegate.createProperty(
+ 'init',
+ id,
+ parsePropertyMethodFunction({
+ generator: true,
+ typeParameters: typeParameters
+ }),
+ true,
+ false,
+ computed
+ ));
+ }
+ key = parseObjectPropertyKey();
+ if (match(':')) {
+ lex();
+ return markerApply(marker, delegate.createProperty('init', key, parseAssignmentExpression(), false, false, false));
+ }
+ if (match('(') || match('<')) {
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+ return markerApply(marker, delegate.createProperty(
+ 'init',
+ key,
+ parsePropertyMethodFunction({
+ generator: false,
+ typeParameters: typeParameters
+ }),
+ true,
+ false,
+ false
+ ));
+ }
+ throwUnexpected(lex());
+ }
+
+ function parseObjectSpreadProperty() {
+ var marker = markerCreate();
+ expect('...');
+ return markerApply(marker, delegate.createSpreadProperty(parseAssignmentExpression()));
+ }
+
+ function getFieldName(key) {
+ var toString = String;
+ if (key.type === Syntax.Identifier) {
+ return key.name;
+ }
+ return toString(key.value);
+ }
+
+ function parseObjectInitialiser() {
+ var properties = [], property, name, kind, storedKind, map = new StringMap(),
+ marker = markerCreate(), toString = String;
+
+ expect('{');
+
+ while (!match('}')) {
+ if (match('...')) {
+ property = parseObjectSpreadProperty();
+ } else {
+ property = parseObjectProperty();
+
+ if (property.key.type === Syntax.Identifier) {
+ name = property.key.name;
+ } else {
+ name = toString(property.key.value);
+ }
+ kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
+
+ if (map.has(name)) {
+ storedKind = map.get(name);
+ if (storedKind === PropertyKind.Data) {
+ if (strict && kind === PropertyKind.Data) {
+ throwErrorTolerant({}, Messages.StrictDuplicateProperty);
+ } else if (kind !== PropertyKind.Data) {
+ throwErrorTolerant({}, Messages.AccessorDataProperty);
+ }
+ } else {
+ if (kind === PropertyKind.Data) {
+ throwErrorTolerant({}, Messages.AccessorDataProperty);
+ } else if (storedKind & kind) {
+ throwErrorTolerant({}, Messages.AccessorGetSet);
+ }
+ }
+ map.set(name, storedKind | kind);
+ } else {
+ map.set(name, kind);
+ }
+ }
+
+ properties.push(property);
+
+ if (!match('}')) {
+ expect(',');
+ }
+ }
+
+ expect('}');
+
+ return markerApply(marker, delegate.createObjectExpression(properties));
+ }
+
+ function parseTemplateElement(option) {
+ var marker = markerCreate(),
+ token = scanTemplateElement(option);
+ if (strict && token.octal) {
+ throwError(token, Messages.StrictOctalLiteral);
+ }
+ return markerApply(marker, delegate.createTemplateElement({ raw: token.value.raw, cooked: token.value.cooked }, token.tail));
+ }
+
+ function parseTemplateLiteral() {
+ var quasi, quasis, expressions, marker = markerCreate();
+
+ quasi = parseTemplateElement({ head: true });
+ quasis = [ quasi ];
+ expressions = [];
+
+ while (!quasi.tail) {
+ expressions.push(parseExpression());
+ quasi = parseTemplateElement({ head: false });
+ quasis.push(quasi);
+ }
+
+ return markerApply(marker, delegate.createTemplateLiteral(quasis, expressions));
+ }
+
+ // 11.1.6 The Grouping Operator
+
+ function parseGroupExpression() {
+ var expr, marker, typeAnnotation;
+
+ expect('(');
+
+ ++state.parenthesizedCount;
+
+ marker = markerCreate();
+
+ expr = parseExpression();
+
+ if (match(':')) {
+ typeAnnotation = parseTypeAnnotation();
+ expr = markerApply(marker, delegate.createTypeCast(
+ expr,
+ typeAnnotation
+ ));
+ }
+
+ expect(')');
+
+ return expr;
+ }
+
+ function matchAsyncFuncExprOrDecl() {
+ var token;
+
+ if (matchAsync()) {
+ token = lookahead2();
+ if (token.type === Token.Keyword && token.value === 'function') {
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ // 11.1 Primary Expressions
+
+ function parsePrimaryExpression() {
+ var marker, type, token, expr;
+
+ type = lookahead.type;
+
+ if (type === Token.Identifier) {
+ marker = markerCreate();
+ return markerApply(marker, delegate.createIdentifier(lex().value));
+ }
+
+ if (type === Token.StringLiteral || type === Token.NumericLiteral) {
+ if (strict && lookahead.octal) {
+ throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
+ }
+ marker = markerCreate();
+ return markerApply(marker, delegate.createLiteral(lex()));
+ }
+
+ if (type === Token.Keyword) {
+ if (matchKeyword('this')) {
+ marker = markerCreate();
+ lex();
+ return markerApply(marker, delegate.createThisExpression());
+ }
+
+ if (matchKeyword('function')) {
+ return parseFunctionExpression();
+ }
+
+ if (matchKeyword('class')) {
+ return parseClassExpression();
+ }
+
+ if (matchKeyword('super')) {
+ marker = markerCreate();
+ lex();
+ return markerApply(marker, delegate.createIdentifier('super'));
+ }
+ }
+
+ if (type === Token.BooleanLiteral) {
+ marker = markerCreate();
+ token = lex();
+ token.value = (token.value === 'true');
+ return markerApply(marker, delegate.createLiteral(token));
+ }
+
+ if (type === Token.NullLiteral) {
+ marker = markerCreate();
+ token = lex();
+ token.value = null;
+ return markerApply(marker, delegate.createLiteral(token));
+ }
+
+ if (match('[')) {
+ return parseArrayInitialiser();
+ }
+
+ if (match('{')) {
+ return parseObjectInitialiser();
+ }
+
+ if (match('(')) {
+ return parseGroupExpression();
+ }
+
+ if (match('/') || match('/=')) {
+ marker = markerCreate();
+ expr = delegate.createLiteral(scanRegExp());
+ peek();
+ return markerApply(marker, expr);
+ }
+
+ if (type === Token.Template) {
+ return parseTemplateLiteral();
+ }
+
+ if (match('<')) {
+ return parseJSXElement();
+ }
+
+ throwUnexpected(lex());
+ }
+
+ // 11.2 Left-Hand-Side Expressions
+
+ function parseArguments() {
+ var args = [], arg;
+
+ expect('(');
+
+ if (!match(')')) {
+ while (index < length) {
+ arg = parseSpreadOrAssignmentExpression();
+ args.push(arg);
+
+ if (match(')')) {
+ break;
+ } else if (arg.type === Syntax.SpreadElement) {
+ throwError({}, Messages.ElementAfterSpreadElement);
+ }
+
+ expect(',');
+ }
+ }
+
+ expect(')');
+
+ return args;
+ }
+
+ function parseSpreadOrAssignmentExpression() {
+ if (match('...')) {
+ var marker = markerCreate();
+ lex();
+ return markerApply(marker, delegate.createSpreadElement(parseAssignmentExpression()));
+ }
+ return parseAssignmentExpression();
+ }
+
+ function parseNonComputedProperty() {
+ var marker = markerCreate(),
+ token = lex();
+
+ if (!isIdentifierName(token)) {
+ throwUnexpected(token);
+ }
+
+ return markerApply(marker, delegate.createIdentifier(token.value));
+ }
+
+ function parseNonComputedMember() {
+ expect('.');
+
+ return parseNonComputedProperty();
+ }
+
+ function parseComputedMember() {
+ var expr;
+
+ expect('[');
+
+ expr = parseExpression();
+
+ expect(']');
+
+ return expr;
+ }
+
+ function parseNewExpression() {
+ var callee, args, marker = markerCreate();
+
+ expectKeyword('new');
+ callee = parseLeftHandSideExpression();
+ args = match('(') ? parseArguments() : [];
+
+ return markerApply(marker, delegate.createNewExpression(callee, args));
+ }
+
+ function parseLeftHandSideExpressionAllowCall() {
+ var expr, args, marker = markerCreate();
+
+ expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+ while (match('.') || match('[') || match('(') || lookahead.type === Token.Template) {
+ if (match('(')) {
+ args = parseArguments();
+ expr = markerApply(marker, delegate.createCallExpression(expr, args));
+ } else if (match('[')) {
+ expr = markerApply(marker, delegate.createMemberExpression('[', expr, parseComputedMember()));
+ } else if (match('.')) {
+ expr = markerApply(marker, delegate.createMemberExpression('.', expr, parseNonComputedMember()));
+ } else {
+ expr = markerApply(marker, delegate.createTaggedTemplateExpression(expr, parseTemplateLiteral()));
+ }
+ }
+
+ return expr;
+ }
+
+ function parseLeftHandSideExpression() {
+ var expr, marker = markerCreate();
+
+ expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+ while (match('.') || match('[') || lookahead.type === Token.Template) {
+ if (match('[')) {
+ expr = markerApply(marker, delegate.createMemberExpression('[', expr, parseComputedMember()));
+ } else if (match('.')) {
+ expr = markerApply(marker, delegate.createMemberExpression('.', expr, parseNonComputedMember()));
+ } else {
+ expr = markerApply(marker, delegate.createTaggedTemplateExpression(expr, parseTemplateLiteral()));
+ }
+ }
+
+ return expr;
+ }
+
+ // 11.3 Postfix Expressions
+
+ function parsePostfixExpression() {
+ var marker = markerCreate(),
+ expr = parseLeftHandSideExpressionAllowCall(),
+ token;
+
+ if (lookahead.type !== Token.Punctuator) {
+ return expr;
+ }
+
+ if ((match('++') || match('--')) && !peekLineTerminator()) {
+ // 11.3.1, 11.3.2
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ throwErrorTolerant({}, Messages.StrictLHSPostfix);
+ }
+
+ if (!isLeftHandSide(expr)) {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+
+ token = lex();
+ expr = markerApply(marker, delegate.createPostfixExpression(token.value, expr));
+ }
+
+ return expr;
+ }
+
+ // 11.4 Unary Operators
+
+ function parseUnaryExpression() {
+ var marker, token, expr;
+
+ if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {
+ return parsePostfixExpression();
+ }
+
+ if (match('++') || match('--')) {
+ marker = markerCreate();
+ token = lex();
+ expr = parseUnaryExpression();
+ // 11.4.4, 11.4.5
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ throwErrorTolerant({}, Messages.StrictLHSPrefix);
+ }
+
+ if (!isLeftHandSide(expr)) {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+
+ return markerApply(marker, delegate.createUnaryExpression(token.value, expr));
+ }
+
+ if (match('+') || match('-') || match('~') || match('!')) {
+ marker = markerCreate();
+ token = lex();
+ expr = parseUnaryExpression();
+ return markerApply(marker, delegate.createUnaryExpression(token.value, expr));
+ }
+
+ if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
+ marker = markerCreate();
+ token = lex();
+ expr = parseUnaryExpression();
+ expr = markerApply(marker, delegate.createUnaryExpression(token.value, expr));
+ if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
+ throwErrorTolerant({}, Messages.StrictDelete);
+ }
+ return expr;
+ }
+
+ return parsePostfixExpression();
+ }
+
+ function binaryPrecedence(token, allowIn) {
+ var prec = 0;
+
+ if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
+ return 0;
+ }
+
+ switch (token.value) {
+ case '||':
+ prec = 1;
+ break;
+
+ case '&&':
+ prec = 2;
+ break;
+
+ case '|':
+ prec = 3;
+ break;
+
+ case '^':
+ prec = 4;
+ break;
+
+ case '&':
+ prec = 5;
+ break;
+
+ case '==':
+ case '!=':
+ case '===':
+ case '!==':
+ prec = 6;
+ break;
+
+ case '<':
+ case '>':
+ case '<=':
+ case '>=':
+ case 'instanceof':
+ prec = 7;
+ break;
+
+ case 'in':
+ prec = allowIn ? 7 : 0;
+ break;
+
+ case '<<':
+ case '>>':
+ case '>>>':
+ prec = 8;
+ break;
+
+ case '+':
+ case '-':
+ prec = 9;
+ break;
+
+ case '*':
+ case '/':
+ case '%':
+ prec = 11;
+ break;
+
+ default:
+ break;
+ }
+
+ return prec;
+ }
+
+ // 11.5 Multiplicative Operators
+ // 11.6 Additive Operators
+ // 11.7 Bitwise Shift Operators
+ // 11.8 Relational Operators
+ // 11.9 Equality Operators
+ // 11.10 Binary Bitwise Operators
+ // 11.11 Binary Logical Operators
+
+ function parseBinaryExpression() {
+ var expr, token, prec, previousAllowIn, stack, right, operator, left, i,
+ marker, markers;
+
+ previousAllowIn = state.allowIn;
+ state.allowIn = true;
+
+ marker = markerCreate();
+ left = parseUnaryExpression();
+
+ token = lookahead;
+ prec = binaryPrecedence(token, previousAllowIn);
+ if (prec === 0) {
+ return left;
+ }
+ token.prec = prec;
+ lex();
+
+ markers = [marker, markerCreate()];
+ right = parseUnaryExpression();
+
+ stack = [left, token, right];
+
+ while ((prec = binaryPrecedence(lookahead, previousAllowIn)) > 0) {
+
+ // Reduce: make a binary expression from the three topmost entries.
+ while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
+ right = stack.pop();
+ operator = stack.pop().value;
+ left = stack.pop();
+ expr = delegate.createBinaryExpression(operator, left, right);
+ markers.pop();
+ marker = markers.pop();
+ markerApply(marker, expr);
+ stack.push(expr);
+ markers.push(marker);
+ }
+
+ // Shift.
+ token = lex();
+ token.prec = prec;
+ stack.push(token);
+ markers.push(markerCreate());
+ expr = parseUnaryExpression();
+ stack.push(expr);
+ }
+
+ state.allowIn = previousAllowIn;
+
+ // Final reduce to clean-up the stack.
+ i = stack.length - 1;
+ expr = stack[i];
+ markers.pop();
+ while (i > 1) {
+ expr = delegate.createBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
+ i -= 2;
+ marker = markers.pop();
+ markerApply(marker, expr);
+ }
+
+ return expr;
+ }
+
+
+ // 11.12 Conditional Operator
+
+ function parseConditionalExpression() {
+ var expr, previousAllowIn, consequent, alternate, marker = markerCreate();
+ expr = parseBinaryExpression();
+
+ if (match('?')) {
+ lex();
+ previousAllowIn = state.allowIn;
+ state.allowIn = true;
+ consequent = parseAssignmentExpression();
+ state.allowIn = previousAllowIn;
+ expect(':');
+ alternate = parseAssignmentExpression();
+
+ expr = markerApply(marker, delegate.createConditionalExpression(expr, consequent, alternate));
+ }
+
+ return expr;
+ }
+
+ // 11.13 Assignment Operators
+
+ // 12.14.5 AssignmentPattern
+
+ function reinterpretAsAssignmentBindingPattern(expr) {
+ var i, len, property, element;
+
+ if (expr.type === Syntax.ObjectExpression) {
+ expr.type = Syntax.ObjectPattern;
+ for (i = 0, len = expr.properties.length; i < len; i += 1) {
+ property = expr.properties[i];
+ if (property.type === Syntax.SpreadProperty) {
+ if (i < len - 1) {
+ throwError({}, Messages.PropertyAfterSpreadProperty);
+ }
+ reinterpretAsAssignmentBindingPattern(property.argument);
+ } else {
+ if (property.kind !== 'init') {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+ reinterpretAsAssignmentBindingPattern(property.value);
+ }
+ }
+ } else if (expr.type === Syntax.ArrayExpression) {
+ expr.type = Syntax.ArrayPattern;
+ for (i = 0, len = expr.elements.length; i < len; i += 1) {
+ element = expr.elements[i];
+ /* istanbul ignore else */
+ if (element) {
+ reinterpretAsAssignmentBindingPattern(element);
+ }
+ }
+ } else if (expr.type === Syntax.Identifier) {
+ if (isRestrictedWord(expr.name)) {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+ } else if (expr.type === Syntax.SpreadElement) {
+ reinterpretAsAssignmentBindingPattern(expr.argument);
+ if (expr.argument.type === Syntax.ObjectPattern) {
+ throwError({}, Messages.ObjectPatternAsSpread);
+ }
+ } else {
+ /* istanbul ignore else */
+ if (expr.type !== Syntax.MemberExpression && expr.type !== Syntax.CallExpression && expr.type !== Syntax.NewExpression) {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+ }
+ }
+
+ // 13.2.3 BindingPattern
+
+ function reinterpretAsDestructuredParameter(options, expr) {
+ var i, len, property, element;
+
+ if (expr.type === Syntax.ObjectExpression) {
+ expr.type = Syntax.ObjectPattern;
+ for (i = 0, len = expr.properties.length; i < len; i += 1) {
+ property = expr.properties[i];
+ if (property.type === Syntax.SpreadProperty) {
+ if (i < len - 1) {
+ throwError({}, Messages.PropertyAfterSpreadProperty);
+ }
+ reinterpretAsDestructuredParameter(options, property.argument);
+ } else {
+ if (property.kind !== 'init') {
+ throwError({}, Messages.InvalidLHSInFormalsList);
+ }
+ reinterpretAsDestructuredParameter(options, property.value);
+ }
+ }
+ } else if (expr.type === Syntax.ArrayExpression) {
+ expr.type = Syntax.ArrayPattern;
+ for (i = 0, len = expr.elements.length; i < len; i += 1) {
+ element = expr.elements[i];
+ if (element) {
+ reinterpretAsDestructuredParameter(options, element);
+ }
+ }
+ } else if (expr.type === Syntax.Identifier) {
+ validateParam(options, expr, expr.name);
+ } else if (expr.type === Syntax.SpreadElement) {
+ // BindingRestElement only allows BindingIdentifier
+ if (expr.argument.type !== Syntax.Identifier) {
+ throwError({}, Messages.InvalidLHSInFormalsList);
+ }
+ validateParam(options, expr.argument, expr.argument.name);
+ } else {
+ throwError({}, Messages.InvalidLHSInFormalsList);
+ }
+ }
+
+ function reinterpretAsCoverFormalsList(expressions) {
+ var i, len, param, params, defaults, defaultCount, options, rest;
+
+ params = [];
+ defaults = [];
+ defaultCount = 0;
+ rest = null;
+ options = {
+ paramSet: new StringMap()
+ };
+
+ for (i = 0, len = expressions.length; i < len; i += 1) {
+ param = expressions[i];
+ if (param.type === Syntax.Identifier) {
+ params.push(param);
+ defaults.push(null);
+ validateParam(options, param, param.name);
+ } else if (param.type === Syntax.ObjectExpression || param.type === Syntax.ArrayExpression) {
+ reinterpretAsDestructuredParameter(options, param);
+ params.push(param);
+ defaults.push(null);
+ } else if (param.type === Syntax.SpreadElement) {
+ assert(i === len - 1, 'It is guaranteed that SpreadElement is last element by parseExpression');
+ if (param.argument.type !== Syntax.Identifier) {
+ throwError({}, Messages.InvalidLHSInFormalsList);
+ }
+ reinterpretAsDestructuredParameter(options, param.argument);
+ rest = param.argument;
+ } else if (param.type === Syntax.AssignmentExpression) {
+ params.push(param.left);
+ defaults.push(param.right);
+ ++defaultCount;
+ validateParam(options, param.left, param.left.name);
+ } else {
+ return null;
+ }
+ }
+
+ if (options.message === Messages.StrictParamDupe) {
+ throwError(
+ strict ? options.stricted : options.firstRestricted,
+ options.message
+ );
+ }
+
+ if (defaultCount === 0) {
+ defaults = [];
+ }
+
+ return {
+ params: params,
+ defaults: defaults,
+ rest: rest,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ }
+
+ function parseArrowFunctionExpression(options, marker) {
+ var previousStrict, previousYieldAllowed, previousAwaitAllowed, body;
+
+ expect('=>');
+
+ previousStrict = strict;
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = false;
+ previousAwaitAllowed = state.awaitAllowed;
+ state.awaitAllowed = !!options.async;
+ body = parseConciseBody();
+
+ if (strict && options.firstRestricted) {
+ throwError(options.firstRestricted, options.message);
+ }
+ if (strict && options.stricted) {
+ throwErrorTolerant(options.stricted, options.message);
+ }
+
+ strict = previousStrict;
+ state.yieldAllowed = previousYieldAllowed;
+ state.awaitAllowed = previousAwaitAllowed;
+
+ return markerApply(marker, delegate.createArrowFunctionExpression(
+ options.params,
+ options.defaults,
+ body,
+ options.rest,
+ body.type !== Syntax.BlockStatement,
+ !!options.async
+ ));
+ }
+
+ function parseAssignmentExpression() {
+ var marker, expr, token, params, oldParenthesizedCount,
+ startsWithParen = false, backtrackToken = lookahead,
+ possiblyAsync = false;
+
+ if (matchYield()) {
+ return parseYieldExpression();
+ }
+
+ if (matchAwait()) {
+ return parseAwaitExpression();
+ }
+
+ oldParenthesizedCount = state.parenthesizedCount;
+
+ marker = markerCreate();
+
+ if (matchAsyncFuncExprOrDecl()) {
+ return parseFunctionExpression();
+ }
+
+ if (matchAsync()) {
+ // We can't be completely sure that this 'async' token is
+ // actually a contextual keyword modifying a function
+ // expression, so we might have to un-lex() it later by
+ // calling rewind(backtrackToken).
+ possiblyAsync = true;
+ lex();
+ }
+
+ if (match('(')) {
+ token = lookahead2();
+ if ((token.type === Token.Punctuator && token.value === ')') || token.value === '...') {
+ params = parseParams();
+ if (!match('=>')) {
+ throwUnexpected(lex());
+ }
+ params.async = possiblyAsync;
+ return parseArrowFunctionExpression(params, marker);
+ }
+ startsWithParen = true;
+ }
+
+ token = lookahead;
+
+ // If the 'async' keyword is not followed by a '(' character or an
+ // identifier, then it can't be an arrow function modifier, and we
+ // should interpret it as a normal identifer.
+ if (possiblyAsync && !match('(') && token.type !== Token.Identifier) {
+ possiblyAsync = false;
+ rewind(backtrackToken);
+ }
+
+ expr = parseConditionalExpression();
+
+ if (match('=>') &&
+ (state.parenthesizedCount === oldParenthesizedCount ||
+ state.parenthesizedCount === (oldParenthesizedCount + 1))) {
+ if (expr.type === Syntax.Identifier) {
+ params = reinterpretAsCoverFormalsList([ expr ]);
+ } else if (expr.type === Syntax.AssignmentExpression ||
+ expr.type === Syntax.ArrayExpression ||
+ expr.type === Syntax.ObjectExpression) {
+ if (!startsWithParen) {
+ throwUnexpected(lex());
+ }
+ params = reinterpretAsCoverFormalsList([ expr ]);
+ } else if (expr.type === Syntax.SequenceExpression) {
+ params = reinterpretAsCoverFormalsList(expr.expressions);
+ }
+ if (params) {
+ params.async = possiblyAsync;
+ return parseArrowFunctionExpression(params, marker);
+ }
+ }
+
+ // If we haven't returned by now, then the 'async' keyword was not
+ // a function modifier, and we should rewind and interpret it as a
+ // normal identifier.
+ if (possiblyAsync) {
+ possiblyAsync = false;
+ rewind(backtrackToken);
+ expr = parseConditionalExpression();
+ }
+
+ if (matchAssign()) {
+ // 11.13.1
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ throwErrorTolerant(token, Messages.StrictLHSAssignment);
+ }
+
+ // ES.next draf 11.13 Runtime Semantics step 1
+ if (match('=') && (expr.type === Syntax.ObjectExpression || expr.type === Syntax.ArrayExpression)) {
+ reinterpretAsAssignmentBindingPattern(expr);
+ } else if (!isLeftHandSide(expr)) {
+ throwError({}, Messages.InvalidLHSInAssignment);
+ }
+
+ expr = markerApply(marker, delegate.createAssignmentExpression(lex().value, expr, parseAssignmentExpression()));
+ }
+
+ return expr;
+ }
+
+ // 11.14 Comma Operator
+
+ function parseExpression() {
+ var marker, expr, expressions, sequence, spreadFound;
+
+ marker = markerCreate();
+ expr = parseAssignmentExpression();
+ expressions = [ expr ];
+
+ if (match(',')) {
+ while (index < length) {
+ if (!match(',')) {
+ break;
+ }
+
+ lex();
+ expr = parseSpreadOrAssignmentExpression();
+ expressions.push(expr);
+
+ if (expr.type === Syntax.SpreadElement) {
+ spreadFound = true;
+ if (!match(')')) {
+ throwError({}, Messages.ElementAfterSpreadElement);
+ }
+ break;
+ }
+ }
+
+ sequence = markerApply(marker, delegate.createSequenceExpression(expressions));
+ }
+
+ if (spreadFound && lookahead2().value !== '=>') {
+ throwError({}, Messages.IllegalSpread);
+ }
+
+ return sequence || expr;
+ }
+
+ // 12.1 Block
+
+ function parseStatementList() {
+ var list = [],
+ statement;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ statement = parseSourceElement();
+ if (typeof statement === 'undefined') {
+ break;
+ }
+ list.push(statement);
+ }
+
+ return list;
+ }
+
+ function parseBlock() {
+ var block, marker = markerCreate();
+
+ expect('{');
+
+ block = parseStatementList();
+
+ expect('}');
+
+ return markerApply(marker, delegate.createBlockStatement(block));
+ }
+
+ // 12.2 Variable Statement
+
+ function parseTypeParameterDeclaration() {
+ var marker = markerCreate(), paramTypes = [];
+
+ expect('<');
+ while (!match('>')) {
+ paramTypes.push(parseTypeAnnotatableIdentifier());
+ if (!match('>')) {
+ expect(',');
+ }
+ }
+ expect('>');
+
+ return markerApply(marker, delegate.createTypeParameterDeclaration(
+ paramTypes
+ ));
+ }
+
+ function parseTypeParameterInstantiation() {
+ var marker = markerCreate(), oldInType = state.inType, paramTypes = [];
+
+ state.inType = true;
+
+ expect('<');
+ while (!match('>')) {
+ paramTypes.push(parseType());
+ if (!match('>')) {
+ expect(',');
+ }
+ }
+ expect('>');
+
+ state.inType = oldInType;
+
+ return markerApply(marker, delegate.createTypeParameterInstantiation(
+ paramTypes
+ ));
+ }
+
+ function parseObjectTypeIndexer(marker, isStatic) {
+ var id, key, value;
+
+ expect('[');
+ id = parseObjectPropertyKey();
+ expect(':');
+ key = parseType();
+ expect(']');
+ expect(':');
+ value = parseType();
+
+ return markerApply(marker, delegate.createObjectTypeIndexer(
+ id,
+ key,
+ value,
+ isStatic
+ ));
+ }
+
+ function parseObjectTypeMethodish(marker) {
+ var params = [], rest = null, returnType, typeParameters = null;
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ expect('(');
+ while (lookahead.type === Token.Identifier) {
+ params.push(parseFunctionTypeParam());
+ if (!match(')')) {
+ expect(',');
+ }
+ }
+
+ if (match('...')) {
+ lex();
+ rest = parseFunctionTypeParam();
+ }
+ expect(')');
+ expect(':');
+ returnType = parseType();
+
+ return markerApply(marker, delegate.createFunctionTypeAnnotation(
+ params,
+ returnType,
+ rest,
+ typeParameters
+ ));
+ }
+
+ function parseObjectTypeMethod(marker, isStatic, key) {
+ var optional = false, value;
+ value = parseObjectTypeMethodish(marker);
+
+ return markerApply(marker, delegate.createObjectTypeProperty(
+ key,
+ value,
+ optional,
+ isStatic
+ ));
+ }
+
+ function parseObjectTypeCallProperty(marker, isStatic) {
+ var valueMarker = markerCreate();
+ return markerApply(marker, delegate.createObjectTypeCallProperty(
+ parseObjectTypeMethodish(valueMarker),
+ isStatic
+ ));
+ }
+
+ function parseObjectType(allowStatic) {
+ var callProperties = [], indexers = [], marker, optional = false,
+ properties = [], propertyKey, propertyTypeAnnotation,
+ token, isStatic, matchStatic;
+
+ expect('{');
+
+ while (!match('}')) {
+ marker = markerCreate();
+ matchStatic =
+ strict
+ ? matchKeyword('static')
+ : matchContextualKeyword('static');
+
+ if (allowStatic && matchStatic) {
+ token = lex();
+ isStatic = true;
+ }
+
+ if (match('[')) {
+ indexers.push(parseObjectTypeIndexer(marker, isStatic));
+ } else if (match('(') || match('<')) {
+ callProperties.push(parseObjectTypeCallProperty(marker, allowStatic));
+ } else {
+ if (isStatic && match(':')) {
+ propertyKey = markerApply(marker, delegate.createIdentifier(token));
+ throwErrorTolerant(token, Messages.StrictReservedWord);
+ } else {
+ propertyKey = parseObjectPropertyKey();
+ }
+ if (match('<') || match('(')) {
+ // This is a method property
+ properties.push(parseObjectTypeMethod(marker, isStatic, propertyKey));
+ } else {
+ if (match('?')) {
+ lex();
+ optional = true;
+ }
+ expect(':');
+ propertyTypeAnnotation = parseType();
+ properties.push(markerApply(marker, delegate.createObjectTypeProperty(
+ propertyKey,
+ propertyTypeAnnotation,
+ optional,
+ isStatic
+ )));
+ }
+ }
+
+ if (match(';')) {
+ lex();
+ } else if (!match('}')) {
+ throwUnexpected(lookahead);
+ }
+ }
+
+ expect('}');
+
+ return delegate.createObjectTypeAnnotation(
+ properties,
+ indexers,
+ callProperties
+ );
+ }
+
+ function parseGenericType() {
+ var marker = markerCreate(),
+ typeParameters = null, typeIdentifier;
+
+ typeIdentifier = parseVariableIdentifier();
+
+ while (match('.')) {
+ expect('.');
+ typeIdentifier = markerApply(marker, delegate.createQualifiedTypeIdentifier(
+ typeIdentifier,
+ parseVariableIdentifier()
+ ));
+ }
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterInstantiation();
+ }
+
+ return markerApply(marker, delegate.createGenericTypeAnnotation(
+ typeIdentifier,
+ typeParameters
+ ));
+ }
+
+ function parseVoidType() {
+ var marker = markerCreate();
+ expectKeyword('void');
+ return markerApply(marker, delegate.createVoidTypeAnnotation());
+ }
+
+ function parseTypeofType() {
+ var argument, marker = markerCreate();
+ expectKeyword('typeof');
+ argument = parsePrimaryType();
+ return markerApply(marker, delegate.createTypeofTypeAnnotation(
+ argument
+ ));
+ }
+
+ function parseTupleType() {
+ var marker = markerCreate(), types = [];
+ expect('[');
+ // We allow trailing commas
+ while (index < length && !match(']')) {
+ types.push(parseType());
+ if (match(']')) {
+ break;
+ }
+ expect(',');
+ }
+ expect(']');
+ return markerApply(marker, delegate.createTupleTypeAnnotation(
+ types
+ ));
+ }
+
+ function parseFunctionTypeParam() {
+ var marker = markerCreate(), name, optional = false, typeAnnotation;
+ name = parseVariableIdentifier();
+ if (match('?')) {
+ lex();
+ optional = true;
+ }
+ expect(':');
+ typeAnnotation = parseType();
+ return markerApply(marker, delegate.createFunctionTypeParam(
+ name,
+ typeAnnotation,
+ optional
+ ));
+ }
+
+ function parseFunctionTypeParams() {
+ var ret = { params: [], rest: null };
+ while (lookahead.type === Token.Identifier) {
+ ret.params.push(parseFunctionTypeParam());
+ if (!match(')')) {
+ expect(',');
+ }
+ }
+
+ if (match('...')) {
+ lex();
+ ret.rest = parseFunctionTypeParam();
+ }
+ return ret;
+ }
+
+ // The parsing of types roughly parallels the parsing of expressions, and
+ // primary types are kind of like primary expressions...they're the
+ // primitives with which other types are constructed.
+ function parsePrimaryType() {
+ var params = null, returnType = null,
+ marker = markerCreate(), rest = null, tmp,
+ typeParameters, token, type, isGroupedType = false;
+
+ switch (lookahead.type) {
+ case Token.Identifier:
+ switch (lookahead.value) {
+ case 'any':
+ lex();
+ return markerApply(marker, delegate.createAnyTypeAnnotation());
+ case 'bool': // fallthrough
+ case 'boolean':
+ lex();
+ return markerApply(marker, delegate.createBooleanTypeAnnotation());
+ case 'number':
+ lex();
+ return markerApply(marker, delegate.createNumberTypeAnnotation());
+ case 'string':
+ lex();
+ return markerApply(marker, delegate.createStringTypeAnnotation());
+ }
+ return markerApply(marker, parseGenericType());
+ case Token.Punctuator:
+ switch (lookahead.value) {
+ case '{':
+ return markerApply(marker, parseObjectType());
+ case '[':
+ return parseTupleType();
+ case '<':
+ typeParameters = parseTypeParameterDeclaration();
+ expect('(');
+ tmp = parseFunctionTypeParams();
+ params = tmp.params;
+ rest = tmp.rest;
+ expect(')');
+
+ expect('=>');
+
+ returnType = parseType();
+
+ return markerApply(marker, delegate.createFunctionTypeAnnotation(
+ params,
+ returnType,
+ rest,
+ typeParameters
+ ));
+ case '(':
+ lex();
+ // Check to see if this is actually a grouped type
+ if (!match(')') && !match('...')) {
+ if (lookahead.type === Token.Identifier) {
+ token = lookahead2();
+ isGroupedType = token.value !== '?' && token.value !== ':';
+ } else {
+ isGroupedType = true;
+ }
+ }
+
+ if (isGroupedType) {
+ type = parseType();
+ expect(')');
+
+ // If we see a => next then someone was probably confused about
+ // function types, so we can provide a better error message
+ if (match('=>')) {
+ throwError({}, Messages.ConfusedAboutFunctionType);
+ }
+
+ return type;
+ }
+
+ tmp = parseFunctionTypeParams();
+ params = tmp.params;
+ rest = tmp.rest;
+
+ expect(')');
+
+ expect('=>');
+
+ returnType = parseType();
+
+ return markerApply(marker, delegate.createFunctionTypeAnnotation(
+ params,
+ returnType,
+ rest,
+ null /* typeParameters */
+ ));
+ }
+ break;
+ case Token.Keyword:
+ switch (lookahead.value) {
+ case 'void':
+ return markerApply(marker, parseVoidType());
+ case 'typeof':
+ return markerApply(marker, parseTypeofType());
+ }
+ break;
+ case Token.StringLiteral:
+ token = lex();
+ if (token.octal) {
+ throwError(token, Messages.StrictOctalLiteral);
+ }
+ return markerApply(marker, delegate.createStringLiteralTypeAnnotation(
+ token
+ ));
+ }
+
+ throwUnexpected(lookahead);
+ }
+
+ function parsePostfixType() {
+ var marker = markerCreate(), t = parsePrimaryType();
+ if (match('[')) {
+ expect('[');
+ expect(']');
+ return markerApply(marker, delegate.createArrayTypeAnnotation(t));
+ }
+ return t;
+ }
+
+ function parsePrefixType() {
+ var marker = markerCreate();
+ if (match('?')) {
+ lex();
+ return markerApply(marker, delegate.createNullableTypeAnnotation(
+ parsePrefixType()
+ ));
+ }
+ return parsePostfixType();
+ }
+
+
+ function parseIntersectionType() {
+ var marker = markerCreate(), type, types;
+ type = parsePrefixType();
+ types = [type];
+ while (match('&')) {
+ lex();
+ types.push(parsePrefixType());
+ }
+
+ return types.length === 1 ?
+ type :
+ markerApply(marker, delegate.createIntersectionTypeAnnotation(
+ types
+ ));
+ }
+
+ function parseUnionType() {
+ var marker = markerCreate(), type, types;
+ type = parseIntersectionType();
+ types = [type];
+ while (match('|')) {
+ lex();
+ types.push(parseIntersectionType());
+ }
+ return types.length === 1 ?
+ type :
+ markerApply(marker, delegate.createUnionTypeAnnotation(
+ types
+ ));
+ }
+
+ function parseType() {
+ var oldInType = state.inType, type;
+ state.inType = true;
+
+ type = parseUnionType();
+
+ state.inType = oldInType;
+ return type;
+ }
+
+ function parseTypeAnnotation() {
+ var marker = markerCreate(), type;
+
+ expect(':');
+ type = parseType();
+
+ return markerApply(marker, delegate.createTypeAnnotation(type));
+ }
+
+ function parseVariableIdentifier() {
+ var marker = markerCreate(),
+ token = lex();
+
+ if (token.type !== Token.Identifier) {
+ throwUnexpected(token);
+ }
+
+ return markerApply(marker, delegate.createIdentifier(token.value));
+ }
+
+ function parseTypeAnnotatableIdentifier(requireTypeAnnotation, canBeOptionalParam) {
+ var marker = markerCreate(),
+ ident = parseVariableIdentifier(),
+ isOptionalParam = false;
+
+ if (canBeOptionalParam && match('?')) {
+ expect('?');
+ isOptionalParam = true;
+ }
+
+ if (requireTypeAnnotation || match(':')) {
+ ident.typeAnnotation = parseTypeAnnotation();
+ ident = markerApply(marker, ident);
+ }
+
+ if (isOptionalParam) {
+ ident.optional = true;
+ ident = markerApply(marker, ident);
+ }
+
+ return ident;
+ }
+
+ function parseVariableDeclaration(kind) {
+ var id,
+ marker = markerCreate(),
+ init = null,
+ typeAnnotationMarker = markerCreate();
+ if (match('{')) {
+ id = parseObjectInitialiser();
+ reinterpretAsAssignmentBindingPattern(id);
+ if (match(':')) {
+ id.typeAnnotation = parseTypeAnnotation();
+ markerApply(typeAnnotationMarker, id);
+ }
+ } else if (match('[')) {
+ id = parseArrayInitialiser();
+ reinterpretAsAssignmentBindingPattern(id);
+ if (match(':')) {
+ id.typeAnnotation = parseTypeAnnotation();
+ markerApply(typeAnnotationMarker, id);
+ }
+ } else {
+ /* istanbul ignore next */
+ id = state.allowKeyword ? parseNonComputedProperty() : parseTypeAnnotatableIdentifier();
+ // 12.2.1
+ if (strict && isRestrictedWord(id.name)) {
+ throwErrorTolerant({}, Messages.StrictVarName);
+ }
+ }
+
+ if (kind === 'const') {
+ if (!match('=')) {
+ throwError({}, Messages.NoUninitializedConst);
+ }
+ expect('=');
+ init = parseAssignmentExpression();
+ } else if (match('=')) {
+ lex();
+ init = parseAssignmentExpression();
+ }
+
+ return markerApply(marker, delegate.createVariableDeclarator(id, init));
+ }
+
+ function parseVariableDeclarationList(kind) {
+ var list = [];
+
+ do {
+ list.push(parseVariableDeclaration(kind));
+ if (!match(',')) {
+ break;
+ }
+ lex();
+ } while (index < length);
+
+ return list;
+ }
+
+ function parseVariableStatement() {
+ var declarations, marker = markerCreate();
+
+ expectKeyword('var');
+
+ declarations = parseVariableDeclarationList();
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createVariableDeclaration(declarations, 'var'));
+ }
+
+ // kind may be `const` or `let`
+ // Both are experimental and not in the specification yet.
+ // see http://wiki.ecmascript.org/doku.php?id=harmony:const
+ // and http://wiki.ecmascript.org/doku.php?id=harmony:let
+ function parseConstLetDeclaration(kind) {
+ var declarations, marker = markerCreate();
+
+ expectKeyword(kind);
+
+ declarations = parseVariableDeclarationList(kind);
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createVariableDeclaration(declarations, kind));
+ }
+
+ // people.mozilla.org/~jorendorff/es6-draft.html
+
+ function parseModuleSpecifier() {
+ var marker = markerCreate(),
+ specifier;
+
+ if (lookahead.type !== Token.StringLiteral) {
+ throwError({}, Messages.InvalidModuleSpecifier);
+ }
+ specifier = delegate.createModuleSpecifier(lookahead);
+ lex();
+ return markerApply(marker, specifier);
+ }
+
+ function parseExportBatchSpecifier() {
+ var marker = markerCreate();
+ expect('*');
+ return markerApply(marker, delegate.createExportBatchSpecifier());
+ }
+
+ function parseExportSpecifier() {
+ var id, name = null, marker = markerCreate(), from;
+ if (matchKeyword('default')) {
+ lex();
+ id = markerApply(marker, delegate.createIdentifier('default'));
+ // export {default} from "something";
+ } else {
+ id = parseVariableIdentifier();
+ }
+ if (matchContextualKeyword('as')) {
+ lex();
+ name = parseNonComputedProperty();
+ }
+
+ return markerApply(marker, delegate.createExportSpecifier(id, name));
+ }
+
+ function parseExportDeclaration() {
+ var declaration = null,
+ possibleIdentifierToken, sourceElement,
+ isExportFromIdentifier,
+ src = null, specifiers = [],
+ marker = markerCreate();
+
+ expectKeyword('export');
+
+ if (matchKeyword('default')) {
+ // covers:
+ // export default ...
+ lex();
+ if (matchKeyword('function') || matchKeyword('class')) {
+ possibleIdentifierToken = lookahead2();
+ if (isIdentifierName(possibleIdentifierToken)) {
+ // covers:
+ // export default function foo () {}
+ // export default class foo {}
+ sourceElement = parseSourceElement();
+ return markerApply(marker, delegate.createExportDeclaration(true, sourceElement, [sourceElement.id], null));
+ }
+ // covers:
+ // export default function () {}
+ // export default class {}
+ switch (lookahead.value) {
+ case 'class':
+ return markerApply(marker, delegate.createExportDeclaration(true, parseClassExpression(), [], null));
+ case 'function':
+ return markerApply(marker, delegate.createExportDeclaration(true, parseFunctionExpression(), [], null));
+ }
+ }
+
+ if (matchContextualKeyword('from')) {
+ throwError({}, Messages.UnexpectedToken, lookahead.value);
+ }
+
+ // covers:
+ // export default {};
+ // export default [];
+ if (match('{')) {
+ declaration = parseObjectInitialiser();
+ } else if (match('[')) {
+ declaration = parseArrayInitialiser();
+ } else {
+ declaration = parseAssignmentExpression();
+ }
+ consumeSemicolon();
+ return markerApply(marker, delegate.createExportDeclaration(true, declaration, [], null));
+ }
+
+ // non-default export
+ if (lookahead.type === Token.Keyword || matchContextualKeyword('type')) {
+ // covers:
+ // export var f = 1;
+ switch (lookahead.value) {
+ case 'type':
+ case 'let':
+ case 'const':
+ case 'var':
+ case 'class':
+ case 'function':
+ return markerApply(marker, delegate.createExportDeclaration(false, parseSourceElement(), specifiers, null));
+ }
+ }
+
+ if (match('*')) {
+ // covers:
+ // export * from "foo";
+ specifiers.push(parseExportBatchSpecifier());
+
+ if (!matchContextualKeyword('from')) {
+ throwError({}, lookahead.value ?
+ Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
+ }
+ lex();
+ src = parseModuleSpecifier();
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createExportDeclaration(false, null, specifiers, src));
+ }
+
+ expect('{');
+ if (!match('}')) {
+ do {
+ isExportFromIdentifier = isExportFromIdentifier || matchKeyword('default');
+ specifiers.push(parseExportSpecifier());
+ } while (match(',') && lex());
+ }
+ expect('}');
+
+ if (matchContextualKeyword('from')) {
+ // covering:
+ // export {default} from "foo";
+ // export {foo} from "foo";
+ lex();
+ src = parseModuleSpecifier();
+ consumeSemicolon();
+ } else if (isExportFromIdentifier) {
+ // covering:
+ // export {default}; // missing fromClause
+ throwError({}, lookahead.value ?
+ Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
+ } else {
+ // cover
+ // export {foo};
+ consumeSemicolon();
+ }
+ return markerApply(marker, delegate.createExportDeclaration(false, declaration, specifiers, src));
+ }
+
+
+ function parseImportSpecifier() {
+ // import {<foo as bar>} ...;
+ var id, name = null, marker = markerCreate();
+
+ id = parseNonComputedProperty();
+ if (matchContextualKeyword('as')) {
+ lex();
+ name = parseVariableIdentifier();
+ }
+
+ return markerApply(marker, delegate.createImportSpecifier(id, name));
+ }
+
+ function parseNamedImports() {
+ var specifiers = [];
+ // {foo, bar as bas}
+ expect('{');
+ if (!match('}')) {
+ do {
+ specifiers.push(parseImportSpecifier());
+ } while (match(',') && lex());
+ }
+ expect('}');
+ return specifiers;
+ }
+
+ function parseImportDefaultSpecifier() {
+ // import <foo> ...;
+ var id, marker = markerCreate();
+
+ id = parseNonComputedProperty();
+
+ return markerApply(marker, delegate.createImportDefaultSpecifier(id));
+ }
+
+ function parseImportNamespaceSpecifier() {
+ // import <* as foo> ...;
+ var id, marker = markerCreate();
+
+ expect('*');
+ if (!matchContextualKeyword('as')) {
+ throwError({}, Messages.NoAsAfterImportNamespace);
+ }
+ lex();
+ id = parseNonComputedProperty();
+
+ return markerApply(marker, delegate.createImportNamespaceSpecifier(id));
+ }
+
+ function parseImportDeclaration() {
+ var specifiers, src, marker = markerCreate(), isType = false, token2;
+
+ expectKeyword('import');
+
+ if (matchContextualKeyword('type')) {
+ token2 = lookahead2();
+ if ((token2.type === Token.Identifier && token2.value !== 'from') ||
+ (token2.type === Token.Punctuator &&
+ (token2.value === '{' || token2.value === '*'))) {
+ isType = true;
+ lex();
+ }
+ }
+
+ specifiers = [];
+
+ if (lookahead.type === Token.StringLiteral) {
+ // covers:
+ // import "foo";
+ src = parseModuleSpecifier();
+ consumeSemicolon();
+ return markerApply(marker, delegate.createImportDeclaration(specifiers, src, isType));
+ }
+
+ if (!matchKeyword('default') && isIdentifierName(lookahead)) {
+ // covers:
+ // import foo
+ // import foo, ...
+ specifiers.push(parseImportDefaultSpecifier());
+ if (match(',')) {
+ lex();
+ }
+ }
+ if (match('*')) {
+ // covers:
+ // import foo, * as foo
+ // import * as foo
+ specifiers.push(parseImportNamespaceSpecifier());
+ } else if (match('{')) {
+ // covers:
+ // import foo, {bar}
+ // import {bar}
+ specifiers = specifiers.concat(parseNamedImports());
+ }
+
+ if (!matchContextualKeyword('from')) {
+ throwError({}, lookahead.value ?
+ Messages.UnexpectedToken : Messages.MissingFromClause, lookahead.value);
+ }
+ lex();
+ src = parseModuleSpecifier();
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createImportDeclaration(specifiers, src, isType));
+ }
+
+ // 12.3 Empty Statement
+
+ function parseEmptyStatement() {
+ var marker = markerCreate();
+ expect(';');
+ return markerApply(marker, delegate.createEmptyStatement());
+ }
+
+ // 12.4 Expression Statement
+
+ function parseExpressionStatement() {
+ var marker = markerCreate(), expr = parseExpression();
+ consumeSemicolon();
+ return markerApply(marker, delegate.createExpressionStatement(expr));
+ }
+
+ // 12.5 If statement
+
+ function parseIfStatement() {
+ var test, consequent, alternate, marker = markerCreate();
+
+ expectKeyword('if');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ consequent = parseStatement();
+
+ if (matchKeyword('else')) {
+ lex();
+ alternate = parseStatement();
+ } else {
+ alternate = null;
+ }
+
+ return markerApply(marker, delegate.createIfStatement(test, consequent, alternate));
+ }
+
+ // 12.6 Iteration Statements
+
+ function parseDoWhileStatement() {
+ var body, test, oldInIteration, marker = markerCreate();
+
+ expectKeyword('do');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ body = parseStatement();
+
+ state.inIteration = oldInIteration;
+
+ expectKeyword('while');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ if (match(';')) {
+ lex();
+ }
+
+ return markerApply(marker, delegate.createDoWhileStatement(body, test));
+ }
+
+ function parseWhileStatement() {
+ var test, body, oldInIteration, marker = markerCreate();
+
+ expectKeyword('while');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ body = parseStatement();
+
+ state.inIteration = oldInIteration;
+
+ return markerApply(marker, delegate.createWhileStatement(test, body));
+ }
+
+ function parseForVariableDeclaration() {
+ var marker = markerCreate(),
+ token = lex(),
+ declarations = parseVariableDeclarationList();
+
+ return markerApply(marker, delegate.createVariableDeclaration(declarations, token.value));
+ }
+
+ function parseForStatement(opts) {
+ var init, test, update, left, right, body, operator, oldInIteration,
+ marker = markerCreate();
+ init = test = update = null;
+ expectKeyword('for');
+
+ // http://wiki.ecmascript.org/doku.php?id=proposals:iterators_and_generators&s=each
+ if (matchContextualKeyword('each')) {
+ throwError({}, Messages.EachNotAllowed);
+ }
+
+ expect('(');
+
+ if (match(';')) {
+ lex();
+ } else {
+ if (matchKeyword('var') || matchKeyword('let') || matchKeyword('const')) {
+ state.allowIn = false;
+ init = parseForVariableDeclaration();
+ state.allowIn = true;
+
+ if (init.declarations.length === 1) {
+ if (matchKeyword('in') || matchContextualKeyword('of')) {
+ operator = lookahead;
+ if (!((operator.value === 'in' || init.kind !== 'var') && init.declarations[0].init)) {
+ lex();
+ left = init;
+ right = parseExpression();
+ init = null;
+ }
+ }
+ }
+ } else {
+ state.allowIn = false;
+ init = parseExpression();
+ state.allowIn = true;
+
+ if (matchContextualKeyword('of')) {
+ operator = lex();
+ left = init;
+ right = parseExpression();
+ init = null;
+ } else if (matchKeyword('in')) {
+ // LeftHandSideExpression
+ if (!isAssignableLeftHandSide(init)) {
+ throwError({}, Messages.InvalidLHSInForIn);
+ }
+ operator = lex();
+ left = init;
+ right = parseExpression();
+ init = null;
+ }
+ }
+
+ if (typeof left === 'undefined') {
+ expect(';');
+ }
+ }
+
+ if (typeof left === 'undefined') {
+
+ if (!match(';')) {
+ test = parseExpression();
+ }
+ expect(';');
+
+ if (!match(')')) {
+ update = parseExpression();
+ }
+ }
+
+ expect(')');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ if (!(opts !== undefined && opts.ignoreBody)) {
+ body = parseStatement();
+ }
+
+ state.inIteration = oldInIteration;
+
+ if (typeof left === 'undefined') {
+ return markerApply(marker, delegate.createForStatement(init, test, update, body));
+ }
+
+ if (operator.value === 'in') {
+ return markerApply(marker, delegate.createForInStatement(left, right, body));
+ }
+ return markerApply(marker, delegate.createForOfStatement(left, right, body));
+ }
+
+ // 12.7 The continue statement
+
+ function parseContinueStatement() {
+ var label = null, marker = markerCreate();
+
+ expectKeyword('continue');
+
+ // Optimize the most common form: 'continue;'.
+ if (source.charCodeAt(index) === 59) {
+ lex();
+
+ if (!state.inIteration) {
+ throwError({}, Messages.IllegalContinue);
+ }
+
+ return markerApply(marker, delegate.createContinueStatement(null));
+ }
+
+ if (peekLineTerminator()) {
+ if (!state.inIteration) {
+ throwError({}, Messages.IllegalContinue);
+ }
+
+ return markerApply(marker, delegate.createContinueStatement(null));
+ }
+
+ if (lookahead.type === Token.Identifier) {
+ label = parseVariableIdentifier();
+
+ if (!state.labelSet.has(label.name)) {
+ throwError({}, Messages.UnknownLabel, label.name);
+ }
+ }
+
+ consumeSemicolon();
+
+ if (label === null && !state.inIteration) {
+ throwError({}, Messages.IllegalContinue);
+ }
+
+ return markerApply(marker, delegate.createContinueStatement(label));
+ }
+
+ // 12.8 The break statement
+
+ function parseBreakStatement() {
+ var label = null, marker = markerCreate();
+
+ expectKeyword('break');
+
+ // Catch the very common case first: immediately a semicolon (char #59).
+ if (source.charCodeAt(index) === 59) {
+ lex();
+
+ if (!(state.inIteration || state.inSwitch)) {
+ throwError({}, Messages.IllegalBreak);
+ }
+
+ return markerApply(marker, delegate.createBreakStatement(null));
+ }
+
+ if (peekLineTerminator()) {
+ if (!(state.inIteration || state.inSwitch)) {
+ throwError({}, Messages.IllegalBreak);
+ }
+
+ return markerApply(marker, delegate.createBreakStatement(null));
+ }
+
+ if (lookahead.type === Token.Identifier) {
+ label = parseVariableIdentifier();
+
+ if (!state.labelSet.has(label.name)) {
+ throwError({}, Messages.UnknownLabel, label.name);
+ }
+ }
+
+ consumeSemicolon();
+
+ if (label === null && !(state.inIteration || state.inSwitch)) {
+ throwError({}, Messages.IllegalBreak);
+ }
+
+ return markerApply(marker, delegate.createBreakStatement(label));
+ }
+
+ // 12.9 The return statement
+
+ function parseReturnStatement() {
+ var argument = null, marker = markerCreate();
+
+ expectKeyword('return');
+
+ if (!state.inFunctionBody) {
+ throwErrorTolerant({}, Messages.IllegalReturn);
+ }
+
+ // 'return' followed by a space and an identifier is very common.
+ if (source.charCodeAt(index) === 32) {
+ if (isIdentifierStart(source.charCodeAt(index + 1))) {
+ argument = parseExpression();
+ consumeSemicolon();
+ return markerApply(marker, delegate.createReturnStatement(argument));
+ }
+ }
+
+ if (peekLineTerminator()) {
+ return markerApply(marker, delegate.createReturnStatement(null));
+ }
+
+ if (!match(';')) {
+ if (!match('}') && lookahead.type !== Token.EOF) {
+ argument = parseExpression();
+ }
+ }
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createReturnStatement(argument));
+ }
+
+ // 12.10 The with statement
+
+ function parseWithStatement() {
+ var object, body, marker = markerCreate();
+
+ if (strict) {
+ throwErrorTolerant({}, Messages.StrictModeWith);
+ }
+
+ expectKeyword('with');
+
+ expect('(');
+
+ object = parseExpression();
+
+ expect(')');
+
+ body = parseStatement();
+
+ return markerApply(marker, delegate.createWithStatement(object, body));
+ }
+
+ // 12.10 The swith statement
+
+ function parseSwitchCase() {
+ var test,
+ consequent = [],
+ sourceElement,
+ marker = markerCreate();
+
+ if (matchKeyword('default')) {
+ lex();
+ test = null;
+ } else {
+ expectKeyword('case');
+ test = parseExpression();
+ }
+ expect(':');
+
+ while (index < length) {
+ if (match('}') || matchKeyword('default') || matchKeyword('case')) {
+ break;
+ }
+ sourceElement = parseSourceElement();
+ if (typeof sourceElement === 'undefined') {
+ break;
+ }
+ consequent.push(sourceElement);
+ }
+
+ return markerApply(marker, delegate.createSwitchCase(test, consequent));
+ }
+
+ function parseSwitchStatement() {
+ var discriminant, cases, clause, oldInSwitch, defaultFound, marker = markerCreate();
+
+ expectKeyword('switch');
+
+ expect('(');
+
+ discriminant = parseExpression();
+
+ expect(')');
+
+ expect('{');
+
+ cases = [];
+
+ if (match('}')) {
+ lex();
+ return markerApply(marker, delegate.createSwitchStatement(discriminant, cases));
+ }
+
+ oldInSwitch = state.inSwitch;
+ state.inSwitch = true;
+ defaultFound = false;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ clause = parseSwitchCase();
+ if (clause.test === null) {
+ if (defaultFound) {
+ throwError({}, Messages.MultipleDefaultsInSwitch);
+ }
+ defaultFound = true;
+ }
+ cases.push(clause);
+ }
+
+ state.inSwitch = oldInSwitch;
+
+ expect('}');
+
+ return markerApply(marker, delegate.createSwitchStatement(discriminant, cases));
+ }
+
+ // 12.13 The throw statement
+
+ function parseThrowStatement() {
+ var argument, marker = markerCreate();
+
+ expectKeyword('throw');
+
+ if (peekLineTerminator()) {
+ throwError({}, Messages.NewlineAfterThrow);
+ }
+
+ argument = parseExpression();
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createThrowStatement(argument));
+ }
+
+ // 12.14 The try statement
+
+ function parseCatchClause() {
+ var param, body, marker = markerCreate();
+
+ expectKeyword('catch');
+
+ expect('(');
+ if (match(')')) {
+ throwUnexpected(lookahead);
+ }
+
+ param = parseExpression();
+ // 12.14.1
+ if (strict && param.type === Syntax.Identifier && isRestrictedWord(param.name)) {
+ throwErrorTolerant({}, Messages.StrictCatchVariable);
+ }
+
+ expect(')');
+ body = parseBlock();
+ return markerApply(marker, delegate.createCatchClause(param, body));
+ }
+
+ function parseTryStatement() {
+ var block, handlers = [], finalizer = null, marker = markerCreate();
+
+ expectKeyword('try');
+
+ block = parseBlock();
+
+ if (matchKeyword('catch')) {
+ handlers.push(parseCatchClause());
+ }
+
+ if (matchKeyword('finally')) {
+ lex();
+ finalizer = parseBlock();
+ }
+
+ if (handlers.length === 0 && !finalizer) {
+ throwError({}, Messages.NoCatchOrFinally);
+ }
+
+ return markerApply(marker, delegate.createTryStatement(block, [], handlers, finalizer));
+ }
+
+ // 12.15 The debugger statement
+
+ function parseDebuggerStatement() {
+ var marker = markerCreate();
+ expectKeyword('debugger');
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createDebuggerStatement());
+ }
+
+ // 12 Statements
+
+ function parseStatement() {
+ var type = lookahead.type,
+ marker,
+ expr,
+ labeledBody;
+
+ if (type === Token.EOF) {
+ throwUnexpected(lookahead);
+ }
+
+ if (type === Token.Punctuator) {
+ switch (lookahead.value) {
+ case ';':
+ return parseEmptyStatement();
+ case '{':
+ return parseBlock();
+ case '(':
+ return parseExpressionStatement();
+ default:
+ break;
+ }
+ }
+
+ if (type === Token.Keyword) {
+ switch (lookahead.value) {
+ case 'break':
+ return parseBreakStatement();
+ case 'continue':
+ return parseContinueStatement();
+ case 'debugger':
+ return parseDebuggerStatement();
+ case 'do':
+ return parseDoWhileStatement();
+ case 'for':
+ return parseForStatement();
+ case 'function':
+ return parseFunctionDeclaration();
+ case 'class':
+ return parseClassDeclaration();
+ case 'if':
+ return parseIfStatement();
+ case 'return':
+ return parseReturnStatement();
+ case 'switch':
+ return parseSwitchStatement();
+ case 'throw':
+ return parseThrowStatement();
+ case 'try':
+ return parseTryStatement();
+ case 'var':
+ return parseVariableStatement();
+ case 'while':
+ return parseWhileStatement();
+ case 'with':
+ return parseWithStatement();
+ default:
+ break;
+ }
+ }
+
+ if (matchAsyncFuncExprOrDecl()) {
+ return parseFunctionDeclaration();
+ }
+
+ marker = markerCreate();
+ expr = parseExpression();
+
+ // 12.12 Labelled Statements
+ if ((expr.type === Syntax.Identifier) && match(':')) {
+ lex();
+
+ if (state.labelSet.has(expr.name)) {
+ throwError({}, Messages.Redeclaration, 'Label', expr.name);
+ }
+
+ state.labelSet.set(expr.name, true);
+ labeledBody = parseStatement();
+ state.labelSet["delete"](expr.name);
+ return markerApply(marker, delegate.createLabeledStatement(expr, labeledBody));
+ }
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createExpressionStatement(expr));
+ }
+
+ // 13 Function Definition
+
+ function parseConciseBody() {
+ if (match('{')) {
+ return parseFunctionSourceElements();
+ }
+ return parseAssignmentExpression();
+ }
+
+ function parseFunctionSourceElements() {
+ var sourceElement, sourceElements = [], token, directive, firstRestricted,
+ oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, oldParenthesizedCount,
+ marker = markerCreate();
+
+ expect('{');
+
+ while (index < length) {
+ if (lookahead.type !== Token.StringLiteral) {
+ break;
+ }
+ token = lookahead;
+
+ sourceElement = parseSourceElement();
+ sourceElements.push(sourceElement);
+ if (sourceElement.expression.type !== Syntax.Literal) {
+ // this is not directive
+ break;
+ }
+ directive = source.slice(token.range[0] + 1, token.range[1] - 1);
+ if (directive === 'use strict') {
+ strict = true;
+ if (firstRestricted) {
+ throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
+ }
+ } else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+
+ oldLabelSet = state.labelSet;
+ oldInIteration = state.inIteration;
+ oldInSwitch = state.inSwitch;
+ oldInFunctionBody = state.inFunctionBody;
+ oldParenthesizedCount = state.parenthesizedCount;
+
+ state.labelSet = new StringMap();
+ state.inIteration = false;
+ state.inSwitch = false;
+ state.inFunctionBody = true;
+ state.parenthesizedCount = 0;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ sourceElement = parseSourceElement();
+ if (typeof sourceElement === 'undefined') {
+ break;
+ }
+ sourceElements.push(sourceElement);
+ }
+
+ expect('}');
+
+ state.labelSet = oldLabelSet;
+ state.inIteration = oldInIteration;
+ state.inSwitch = oldInSwitch;
+ state.inFunctionBody = oldInFunctionBody;
+ state.parenthesizedCount = oldParenthesizedCount;
+
+ return markerApply(marker, delegate.createBlockStatement(sourceElements));
+ }
+
+ function validateParam(options, param, name) {
+ if (strict) {
+ if (isRestrictedWord(name)) {
+ options.stricted = param;
+ options.message = Messages.StrictParamName;
+ }
+ if (options.paramSet.has(name)) {
+ options.stricted = param;
+ options.message = Messages.StrictParamDupe;
+ }
+ } else if (!options.firstRestricted) {
+ if (isRestrictedWord(name)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictParamName;
+ } else if (isStrictModeReservedWord(name)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictReservedWord;
+ } else if (options.paramSet.has(name)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictParamDupe;
+ }
+ }
+ options.paramSet.set(name, true);
+ }
+
+ function parseParam(options) {
+ var marker, token, rest, param, def;
+
+ token = lookahead;
+ if (token.value === '...') {
+ token = lex();
+ rest = true;
+ }
+
+ if (match('[')) {
+ marker = markerCreate();
+ param = parseArrayInitialiser();
+ reinterpretAsDestructuredParameter(options, param);
+ if (match(':')) {
+ param.typeAnnotation = parseTypeAnnotation();
+ markerApply(marker, param);
+ }
+ } else if (match('{')) {
+ marker = markerCreate();
+ if (rest) {
+ throwError({}, Messages.ObjectPatternAsRestParameter);
+ }
+ param = parseObjectInitialiser();
+ reinterpretAsDestructuredParameter(options, param);
+ if (match(':')) {
+ param.typeAnnotation = parseTypeAnnotation();
+ markerApply(marker, param);
+ }
+ } else {
+ param =
+ rest
+ ? parseTypeAnnotatableIdentifier(
+ false, /* requireTypeAnnotation */
+ false /* canBeOptionalParam */
+ )
+ : parseTypeAnnotatableIdentifier(
+ false, /* requireTypeAnnotation */
+ true /* canBeOptionalParam */
+ );
+
+ validateParam(options, token, token.value);
+ }
+
+ if (match('=')) {
+ if (rest) {
+ throwErrorTolerant(lookahead, Messages.DefaultRestParameter);
+ }
+ lex();
+ def = parseAssignmentExpression();
+ ++options.defaultCount;
+ }
+
+ if (rest) {
+ if (!match(')')) {
+ throwError({}, Messages.ParameterAfterRestParameter);
+ }
+ options.rest = param;
+ return false;
+ }
+
+ options.params.push(param);
+ options.defaults.push(def);
+ return !match(')');
+ }
+
+ function parseParams(firstRestricted) {
+ var options, marker = markerCreate();
+
+ options = {
+ params: [],
+ defaultCount: 0,
+ defaults: [],
+ rest: null,
+ firstRestricted: firstRestricted
+ };
+
+ expect('(');
+
+ if (!match(')')) {
+ options.paramSet = new StringMap();
+ while (index < length) {
+ if (!parseParam(options)) {
+ break;
+ }
+ expect(',');
+ }
+ }
+
+ expect(')');
+
+ if (options.defaultCount === 0) {
+ options.defaults = [];
+ }
+
+ if (match(':')) {
+ options.returnType = parseTypeAnnotation();
+ }
+
+ return markerApply(marker, options);
+ }
+
+ function parseFunctionDeclaration() {
+ var id, body, token, tmp, firstRestricted, message, generator, isAsync,
+ previousStrict, previousYieldAllowed, previousAwaitAllowed,
+ marker = markerCreate(), typeParameters;
+
+ isAsync = false;
+ if (matchAsync()) {
+ lex();
+ isAsync = true;
+ }
+
+ expectKeyword('function');
+
+ generator = false;
+ if (match('*')) {
+ lex();
+ generator = true;
+ }
+
+ token = lookahead;
+
+ id = parseVariableIdentifier();
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ if (strict) {
+ if (isRestrictedWord(token.value)) {
+ throwErrorTolerant(token, Messages.StrictFunctionName);
+ }
+ } else {
+ if (isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictFunctionName;
+ } else if (isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictReservedWord;
+ }
+ }
+
+ tmp = parseParams(firstRestricted);
+ firstRestricted = tmp.firstRestricted;
+ if (tmp.message) {
+ message = tmp.message;
+ }
+
+ previousStrict = strict;
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = generator;
+ previousAwaitAllowed = state.awaitAllowed;
+ state.awaitAllowed = isAsync;
+
+ body = parseFunctionSourceElements();
+
+ if (strict && firstRestricted) {
+ throwError(firstRestricted, message);
+ }
+ if (strict && tmp.stricted) {
+ throwErrorTolerant(tmp.stricted, message);
+ }
+ strict = previousStrict;
+ state.yieldAllowed = previousYieldAllowed;
+ state.awaitAllowed = previousAwaitAllowed;
+
+ return markerApply(
+ marker,
+ delegate.createFunctionDeclaration(
+ id,
+ tmp.params,
+ tmp.defaults,
+ body,
+ tmp.rest,
+ generator,
+ false,
+ isAsync,
+ tmp.returnType,
+ typeParameters
+ )
+ );
+ }
+
+ function parseFunctionExpression() {
+ var token, id = null, firstRestricted, message, tmp, body, generator, isAsync,
+ previousStrict, previousYieldAllowed, previousAwaitAllowed,
+ marker = markerCreate(), typeParameters;
+
+ isAsync = false;
+ if (matchAsync()) {
+ lex();
+ isAsync = true;
+ }
+
+ expectKeyword('function');
+
+ generator = false;
+
+ if (match('*')) {
+ lex();
+ generator = true;
+ }
+
+ if (!match('(')) {
+ if (!match('<')) {
+ token = lookahead;
+ id = parseVariableIdentifier();
+
+ if (strict) {
+ if (isRestrictedWord(token.value)) {
+ throwErrorTolerant(token, Messages.StrictFunctionName);
+ }
+ } else {
+ if (isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictFunctionName;
+ } else if (isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictReservedWord;
+ }
+ }
+ }
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+ }
+
+ tmp = parseParams(firstRestricted);
+ firstRestricted = tmp.firstRestricted;
+ if (tmp.message) {
+ message = tmp.message;
+ }
+
+ previousStrict = strict;
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = generator;
+ previousAwaitAllowed = state.awaitAllowed;
+ state.awaitAllowed = isAsync;
+
+ body = parseFunctionSourceElements();
+
+ if (strict && firstRestricted) {
+ throwError(firstRestricted, message);
+ }
+ if (strict && tmp.stricted) {
+ throwErrorTolerant(tmp.stricted, message);
+ }
+ strict = previousStrict;
+ state.yieldAllowed = previousYieldAllowed;
+ state.awaitAllowed = previousAwaitAllowed;
+
+ return markerApply(
+ marker,
+ delegate.createFunctionExpression(
+ id,
+ tmp.params,
+ tmp.defaults,
+ body,
+ tmp.rest,
+ generator,
+ false,
+ isAsync,
+ tmp.returnType,
+ typeParameters
+ )
+ );
+ }
+
+ function parseYieldExpression() {
+ var delegateFlag, expr, marker = markerCreate();
+
+ expectKeyword('yield', !strict);
+
+ delegateFlag = false;
+ if (match('*')) {
+ lex();
+ delegateFlag = true;
+ }
+
+ expr = parseAssignmentExpression();
+
+ return markerApply(marker, delegate.createYieldExpression(expr, delegateFlag));
+ }
+
+ function parseAwaitExpression() {
+ var expr, marker = markerCreate();
+ expectContextualKeyword('await');
+ expr = parseAssignmentExpression();
+ return markerApply(marker, delegate.createAwaitExpression(expr));
+ }
+
+ // 14 Functions and classes
+
+ // 14.1 Functions is defined above (13 in ES5)
+ // 14.2 Arrow Functions Definitions is defined in (7.3 assignments)
+
+ // 14.3 Method Definitions
+ // 14.3.7
+ function specialMethod(methodDefinition) {
+ return methodDefinition.kind === 'get' ||
+ methodDefinition.kind === 'set' ||
+ methodDefinition.value.generator;
+ }
+
+ function parseMethodDefinition(key, isStatic, generator, computed) {
+ var token, param, propType,
+ isAsync, typeParameters, tokenValue, returnType;
+
+ propType = isStatic ? ClassPropertyType["static"] : ClassPropertyType.prototype;
+
+ if (generator) {
+ return delegate.createMethodDefinition(
+ propType,
+ '',
+ key,
+ parsePropertyMethodFunction({ generator: true }),
+ computed
+ );
+ }
+
+ tokenValue = key.type === 'Identifier' && key.name;
+
+ if (tokenValue === 'get' && !match('(')) {
+ key = parseObjectPropertyKey();
+
+ expect('(');
+ expect(')');
+ if (match(':')) {
+ returnType = parseTypeAnnotation();
+ }
+ return delegate.createMethodDefinition(
+ propType,
+ 'get',
+ key,
+ parsePropertyFunction({ generator: false, returnType: returnType }),
+ computed
+ );
+ }
+ if (tokenValue === 'set' && !match('(')) {
+ key = parseObjectPropertyKey();
+
+ expect('(');
+ token = lookahead;
+ param = [ parseTypeAnnotatableIdentifier() ];
+ expect(')');
+ if (match(':')) {
+ returnType = parseTypeAnnotation();
+ }
+ return delegate.createMethodDefinition(
+ propType,
+ 'set',
+ key,
+ parsePropertyFunction({
+ params: param,
+ generator: false,
+ name: token,
+ returnType: returnType
+ }),
+ computed
+ );
+ }
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ isAsync = tokenValue === 'async' && !match('(');
+ if (isAsync) {
+ key = parseObjectPropertyKey();
+ }
+
+ return delegate.createMethodDefinition(
+ propType,
+ '',
+ key,
+ parsePropertyMethodFunction({
+ generator: false,
+ async: isAsync,
+ typeParameters: typeParameters
+ }),
+ computed
+ );
+ }
+
+ function parseClassProperty(key, computed, isStatic) {
+ var typeAnnotation;
+
+ typeAnnotation = parseTypeAnnotation();
+ expect(';');
+
+ return delegate.createClassProperty(
+ key,
+ typeAnnotation,
+ computed,
+ isStatic
+ );
+ }
+
+ function parseClassElement() {
+ var computed = false, generator = false, key, marker = markerCreate(),
+ isStatic = false, possiblyOpenBracketToken;
+ if (match(';')) {
+ lex();
+ return undefined;
+ }
+
+ if (lookahead.value === 'static') {
+ lex();
+ isStatic = true;
+ }
+
+ if (match('*')) {
+ lex();
+ generator = true;
+ }
+
+ possiblyOpenBracketToken = lookahead;
+ if (matchContextualKeyword('get') || matchContextualKeyword('set')) {
+ possiblyOpenBracketToken = lookahead2();
+ }
+
+ if (possiblyOpenBracketToken.type === Token.Punctuator
+ && possiblyOpenBracketToken.value === '[') {
+ computed = true;
+ }
+
+ key = parseObjectPropertyKey();
+
+ if (!generator && lookahead.value === ':') {
+ return markerApply(marker, parseClassProperty(key, computed, isStatic));
+ }
+
+ return markerApply(marker, parseMethodDefinition(
+ key,
+ isStatic,
+ generator,
+ computed
+ ));
+ }
+
+ function parseClassBody() {
+ var classElement, classElements = [], existingProps = {},
+ marker = markerCreate(), propName, propType;
+
+ existingProps[ClassPropertyType["static"]] = new StringMap();
+ existingProps[ClassPropertyType.prototype] = new StringMap();
+
+ expect('{');
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ classElement = parseClassElement(existingProps);
+
+ if (typeof classElement !== 'undefined') {
+ classElements.push(classElement);
+
+ propName = !classElement.computed && getFieldName(classElement.key);
+ if (propName !== false) {
+ propType = classElement["static"] ?
+ ClassPropertyType["static"] :
+ ClassPropertyType.prototype;
+
+ if (classElement.type === Syntax.MethodDefinition) {
+ if (propName === 'constructor' && !classElement["static"]) {
+ if (specialMethod(classElement)) {
+ throwError(classElement, Messages.IllegalClassConstructorProperty);
+ }
+ if (existingProps[ClassPropertyType.prototype].has('constructor')) {
+ throwError(classElement.key, Messages.IllegalDuplicateClassProperty);
+ }
+ }
+ existingProps[propType].set(propName, true);
+ }
+ }
+ }
+ }
+
+ expect('}');
+
+ return markerApply(marker, delegate.createClassBody(classElements));
+ }
+
+ function parseClassImplements() {
+ var id, implemented = [], marker, typeParameters;
+ if (strict) {
+ expectKeyword('implements');
+ } else {
+ expectContextualKeyword('implements');
+ }
+ while (index < length) {
+ marker = markerCreate();
+ id = parseVariableIdentifier();
+ if (match('<')) {
+ typeParameters = parseTypeParameterInstantiation();
+ } else {
+ typeParameters = null;
+ }
+ implemented.push(markerApply(marker, delegate.createClassImplements(
+ id,
+ typeParameters
+ )));
+ if (!match(',')) {
+ break;
+ }
+ expect(',');
+ }
+ return implemented;
+ }
+
+ function parseClassExpression() {
+ var id, implemented, previousYieldAllowed, superClass = null,
+ superTypeParameters, marker = markerCreate(), typeParameters,
+ matchImplements;
+
+ expectKeyword('class');
+
+ matchImplements =
+ strict
+ ? matchKeyword('implements')
+ : matchContextualKeyword('implements');
+
+ if (!matchKeyword('extends') && !matchImplements && !match('{')) {
+ id = parseVariableIdentifier();
+ }
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ if (matchKeyword('extends')) {
+ expectKeyword('extends');
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = false;
+ superClass = parseLeftHandSideExpressionAllowCall();
+ if (match('<')) {
+ superTypeParameters = parseTypeParameterInstantiation();
+ }
+ state.yieldAllowed = previousYieldAllowed;
+ }
+
+ if (strict ? matchKeyword('implements') : matchContextualKeyword('implements')) {
+ implemented = parseClassImplements();
+ }
+
+ return markerApply(marker, delegate.createClassExpression(
+ id,
+ superClass,
+ parseClassBody(),
+ typeParameters,
+ superTypeParameters,
+ implemented
+ ));
+ }
+
+ function parseClassDeclaration() {
+ var id, implemented, previousYieldAllowed, superClass = null,
+ superTypeParameters, marker = markerCreate(), typeParameters;
+
+ expectKeyword('class');
+
+ id = parseVariableIdentifier();
+
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ if (matchKeyword('extends')) {
+ expectKeyword('extends');
+ previousYieldAllowed = state.yieldAllowed;
+ state.yieldAllowed = false;
+ superClass = parseLeftHandSideExpressionAllowCall();
+ if (match('<')) {
+ superTypeParameters = parseTypeParameterInstantiation();
+ }
+ state.yieldAllowed = previousYieldAllowed;
+ }
+
+ if (strict ? matchKeyword('implements') : matchContextualKeyword('implements')) {
+ implemented = parseClassImplements();
+ }
+
+ return markerApply(marker, delegate.createClassDeclaration(
+ id,
+ superClass,
+ parseClassBody(),
+ typeParameters,
+ superTypeParameters,
+ implemented
+ ));
+ }
+
+ // 15 Program
+
+ function parseSourceElement() {
+ var token;
+ if (lookahead.type === Token.Keyword) {
+ switch (lookahead.value) {
+ case 'const':
+ case 'let':
+ return parseConstLetDeclaration(lookahead.value);
+ case 'function':
+ return parseFunctionDeclaration();
+ case 'export':
+ throwErrorTolerant({}, Messages.IllegalExportDeclaration);
+ return parseExportDeclaration();
+ case 'import':
+ throwErrorTolerant({}, Messages.IllegalImportDeclaration);
+ return parseImportDeclaration();
+ case 'interface':
+ if (lookahead2().type === Token.Identifier) {
+ return parseInterface();
+ }
+ return parseStatement();
+ default:
+ return parseStatement();
+ }
+ }
+
+ if (matchContextualKeyword('type')
+ && lookahead2().type === Token.Identifier) {
+ return parseTypeAlias();
+ }
+
+ if (matchContextualKeyword('interface')
+ && lookahead2().type === Token.Identifier) {
+ return parseInterface();
+ }
+
+ if (matchContextualKeyword('declare')) {
+ token = lookahead2();
+ if (token.type === Token.Keyword) {
+ switch (token.value) {
+ case 'class':
+ return parseDeclareClass();
+ case 'function':
+ return parseDeclareFunction();
+ case 'var':
+ return parseDeclareVariable();
+ }
+ } else if (token.type === Token.Identifier
+ && token.value === 'module') {
+ return parseDeclareModule();
+ }
+ }
+
+ if (lookahead.type !== Token.EOF) {
+ return parseStatement();
+ }
+ }
+
+ function parseProgramElement() {
+ var isModule = extra.sourceType === 'module' || extra.sourceType === 'nonStrictModule';
+
+ if (isModule && lookahead.type === Token.Keyword) {
+ switch (lookahead.value) {
+ case 'export':
+ return parseExportDeclaration();
+ case 'import':
+ return parseImportDeclaration();
+ }
+ }
+
+ return parseSourceElement();
+ }
+
+ function parseProgramElements() {
+ var sourceElement, sourceElements = [], token, directive, firstRestricted;
+
+ while (index < length) {
+ token = lookahead;
+ if (token.type !== Token.StringLiteral) {
+ break;
+ }
+
+ sourceElement = parseProgramElement();
+ sourceElements.push(sourceElement);
+ if (sourceElement.expression.type !== Syntax.Literal) {
+ // this is not directive
+ break;
+ }
+ directive = source.slice(token.range[0] + 1, token.range[1] - 1);
+ if (directive === 'use strict') {
+ strict = true;
+ if (firstRestricted) {
+ throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
+ }
+ } else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+
+ while (index < length) {
+ sourceElement = parseProgramElement();
+ if (typeof sourceElement === 'undefined') {
+ break;
+ }
+ sourceElements.push(sourceElement);
+ }
+ return sourceElements;
+ }
+
+ function parseProgram() {
+ var body, marker = markerCreate();
+ strict = extra.sourceType === 'module';
+ peek();
+ body = parseProgramElements();
+ return markerApply(marker, delegate.createProgram(body));
+ }
+
+ // 16 JSX
+
+ XHTMLEntities = {
+ quot: '\u0022',
+ amp: '&',
+ apos: '\u0027',
+ lt: '<',
+ gt: '>',
+ nbsp: '\u00A0',
+ iexcl: '\u00A1',
+ cent: '\u00A2',
+ pound: '\u00A3',
+ curren: '\u00A4',
+ yen: '\u00A5',
+ brvbar: '\u00A6',
+ sect: '\u00A7',
+ uml: '\u00A8',
+ copy: '\u00A9',
+ ordf: '\u00AA',
+ laquo: '\u00AB',
+ not: '\u00AC',
+ shy: '\u00AD',
+ reg: '\u00AE',
+ macr: '\u00AF',
+ deg: '\u00B0',
+ plusmn: '\u00B1',
+ sup2: '\u00B2',
+ sup3: '\u00B3',
+ acute: '\u00B4',
+ micro: '\u00B5',
+ para: '\u00B6',
+ middot: '\u00B7',
+ cedil: '\u00B8',
+ sup1: '\u00B9',
+ ordm: '\u00BA',
+ raquo: '\u00BB',
+ frac14: '\u00BC',
+ frac12: '\u00BD',
+ frac34: '\u00BE',
+ iquest: '\u00BF',
+ Agrave: '\u00C0',
+ Aacute: '\u00C1',
+ Acirc: '\u00C2',
+ Atilde: '\u00C3',
+ Auml: '\u00C4',
+ Aring: '\u00C5',
+ AElig: '\u00C6',
+ Ccedil: '\u00C7',
+ Egrave: '\u00C8',
+ Eacute: '\u00C9',
+ Ecirc: '\u00CA',
+ Euml: '\u00CB',
+ Igrave: '\u00CC',
+ Iacute: '\u00CD',
+ Icirc: '\u00CE',
+ Iuml: '\u00CF',
+ ETH: '\u00D0',
+ Ntilde: '\u00D1',
+ Ograve: '\u00D2',
+ Oacute: '\u00D3',
+ Ocirc: '\u00D4',
+ Otilde: '\u00D5',
+ Ouml: '\u00D6',
+ times: '\u00D7',
+ Oslash: '\u00D8',
+ Ugrave: '\u00D9',
+ Uacute: '\u00DA',
+ Ucirc: '\u00DB',
+ Uuml: '\u00DC',
+ Yacute: '\u00DD',
+ THORN: '\u00DE',
+ szlig: '\u00DF',
+ agrave: '\u00E0',
+ aacute: '\u00E1',
+ acirc: '\u00E2',
+ atilde: '\u00E3',
+ auml: '\u00E4',
+ aring: '\u00E5',
+ aelig: '\u00E6',
+ ccedil: '\u00E7',
+ egrave: '\u00E8',
+ eacute: '\u00E9',
+ ecirc: '\u00EA',
+ euml: '\u00EB',
+ igrave: '\u00EC',
+ iacute: '\u00ED',
+ icirc: '\u00EE',
+ iuml: '\u00EF',
+ eth: '\u00F0',
+ ntilde: '\u00F1',
+ ograve: '\u00F2',
+ oacute: '\u00F3',
+ ocirc: '\u00F4',
+ otilde: '\u00F5',
+ ouml: '\u00F6',
+ divide: '\u00F7',
+ oslash: '\u00F8',
+ ugrave: '\u00F9',
+ uacute: '\u00FA',
+ ucirc: '\u00FB',
+ uuml: '\u00FC',
+ yacute: '\u00FD',
+ thorn: '\u00FE',
+ yuml: '\u00FF',
+ OElig: '\u0152',
+ oelig: '\u0153',
+ Scaron: '\u0160',
+ scaron: '\u0161',
+ Yuml: '\u0178',
+ fnof: '\u0192',
+ circ: '\u02C6',
+ tilde: '\u02DC',
+ Alpha: '\u0391',
+ Beta: '\u0392',
+ Gamma: '\u0393',
+ Delta: '\u0394',
+ Epsilon: '\u0395',
+ Zeta: '\u0396',
+ Eta: '\u0397',
+ Theta: '\u0398',
+ Iota: '\u0399',
+ Kappa: '\u039A',
+ Lambda: '\u039B',
+ Mu: '\u039C',
+ Nu: '\u039D',
+ Xi: '\u039E',
+ Omicron: '\u039F',
+ Pi: '\u03A0',
+ Rho: '\u03A1',
+ Sigma: '\u03A3',
+ Tau: '\u03A4',
+ Upsilon: '\u03A5',
+ Phi: '\u03A6',
+ Chi: '\u03A7',
+ Psi: '\u03A8',
+ Omega: '\u03A9',
+ alpha: '\u03B1',
+ beta: '\u03B2',
+ gamma: '\u03B3',
+ delta: '\u03B4',
+ epsilon: '\u03B5',
+ zeta: '\u03B6',
+ eta: '\u03B7',
+ theta: '\u03B8',
+ iota: '\u03B9',
+ kappa: '\u03BA',
+ lambda: '\u03BB',
+ mu: '\u03BC',
+ nu: '\u03BD',
+ xi: '\u03BE',
+ omicron: '\u03BF',
+ pi: '\u03C0',
+ rho: '\u03C1',
+ sigmaf: '\u03C2',
+ sigma: '\u03C3',
+ tau: '\u03C4',
+ upsilon: '\u03C5',
+ phi: '\u03C6',
+ chi: '\u03C7',
+ psi: '\u03C8',
+ omega: '\u03C9',
+ thetasym: '\u03D1',
+ upsih: '\u03D2',
+ piv: '\u03D6',
+ ensp: '\u2002',
+ emsp: '\u2003',
+ thinsp: '\u2009',
+ zwnj: '\u200C',
+ zwj: '\u200D',
+ lrm: '\u200E',
+ rlm: '\u200F',
+ ndash: '\u2013',
+ mdash: '\u2014',
+ lsquo: '\u2018',
+ rsquo: '\u2019',
+ sbquo: '\u201A',
+ ldquo: '\u201C',
+ rdquo: '\u201D',
+ bdquo: '\u201E',
+ dagger: '\u2020',
+ Dagger: '\u2021',
+ bull: '\u2022',
+ hellip: '\u2026',
+ permil: '\u2030',
+ prime: '\u2032',
+ Prime: '\u2033',
+ lsaquo: '\u2039',
+ rsaquo: '\u203A',
+ oline: '\u203E',
+ frasl: '\u2044',
+ euro: '\u20AC',
+ image: '\u2111',
+ weierp: '\u2118',
+ real: '\u211C',
+ trade: '\u2122',
+ alefsym: '\u2135',
+ larr: '\u2190',
+ uarr: '\u2191',
+ rarr: '\u2192',
+ darr: '\u2193',
+ harr: '\u2194',
+ crarr: '\u21B5',
+ lArr: '\u21D0',
+ uArr: '\u21D1',
+ rArr: '\u21D2',
+ dArr: '\u21D3',
+ hArr: '\u21D4',
+ forall: '\u2200',
+ part: '\u2202',
+ exist: '\u2203',
+ empty: '\u2205',
+ nabla: '\u2207',
+ isin: '\u2208',
+ notin: '\u2209',
+ ni: '\u220B',
+ prod: '\u220F',
+ sum: '\u2211',
+ minus: '\u2212',
+ lowast: '\u2217',
+ radic: '\u221A',
+ prop: '\u221D',
+ infin: '\u221E',
+ ang: '\u2220',
+ and: '\u2227',
+ or: '\u2228',
+ cap: '\u2229',
+ cup: '\u222A',
+ 'int': '\u222B',
+ there4: '\u2234',
+ sim: '\u223C',
+ cong: '\u2245',
+ asymp: '\u2248',
+ ne: '\u2260',
+ equiv: '\u2261',
+ le: '\u2264',
+ ge: '\u2265',
+ sub: '\u2282',
+ sup: '\u2283',
+ nsub: '\u2284',
+ sube: '\u2286',
+ supe: '\u2287',
+ oplus: '\u2295',
+ otimes: '\u2297',
+ perp: '\u22A5',
+ sdot: '\u22C5',
+ lceil: '\u2308',
+ rceil: '\u2309',
+ lfloor: '\u230A',
+ rfloor: '\u230B',
+ lang: '\u2329',
+ rang: '\u232A',
+ loz: '\u25CA',
+ spades: '\u2660',
+ clubs: '\u2663',
+ hearts: '\u2665',
+ diams: '\u2666'
+ };
+
+ function getQualifiedJSXName(object) {
+ if (object.type === Syntax.JSXIdentifier) {
+ return object.name;
+ }
+ if (object.type === Syntax.JSXNamespacedName) {
+ return object.namespace.name + ':' + object.name.name;
+ }
+ /* istanbul ignore else */
+ if (object.type === Syntax.JSXMemberExpression) {
+ return (
+ getQualifiedJSXName(object.object) + '.' +
+ getQualifiedJSXName(object.property)
+ );
+ }
+ /* istanbul ignore next */
+ throwUnexpected(object);
+ }
+
+ function isJSXIdentifierStart(ch) {
+ // exclude backslash (\)
+ return (ch !== 92) && isIdentifierStart(ch);
+ }
+
+ function isJSXIdentifierPart(ch) {
+ // exclude backslash (\) and add hyphen (-)
+ return (ch !== 92) && (ch === 45 || isIdentifierPart(ch));
+ }
+
+ function scanJSXIdentifier() {
+ var ch, start, value = '';
+
+ start = index;
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (!isJSXIdentifierPart(ch)) {
+ break;
+ }
+ value += source[index++];
+ }
+
+ return {
+ type: Token.JSXIdentifier,
+ value: value,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanJSXEntity() {
+ var ch, str = '', start = index, count = 0, code;
+ ch = source[index];
+ assert(ch === '&', 'Entity must start with an ampersand');
+ index++;
+ while (index < length && count++ < 10) {
+ ch = source[index++];
+ if (ch === ';') {
+ break;
+ }
+ str += ch;
+ }
+
+ // Well-formed entity (ending was found).
+ if (ch === ';') {
+ // Numeric entity.
+ if (str[0] === '#') {
+ if (str[1] === 'x') {
+ code = +('0' + str.substr(1));
+ } else {
+ // Removing leading zeros in order to avoid treating as octal in old browsers.
+ code = +str.substr(1).replace(Regex.LeadingZeros, '');
+ }
+
+ if (!isNaN(code)) {
+ return String.fromCharCode(code);
+ }
+ /* istanbul ignore else */
+ } else if (XHTMLEntities[str]) {
+ return XHTMLEntities[str];
+ }
+ }
+
+ // Treat non-entity sequences as regular text.
+ index = start + 1;
+ return '&';
+ }
+
+ function scanJSXText(stopChars) {
+ var ch, str = '', start;
+ start = index;
+ while (index < length) {
+ ch = source[index];
+ if (stopChars.indexOf(ch) !== -1) {
+ break;
+ }
+ if (ch === '&') {
+ str += scanJSXEntity();
+ } else {
+ index++;
+ if (ch === '\r' && source[index] === '\n') {
+ str += ch;
+ ch = source[index];
+ index++;
+ }
+ if (isLineTerminator(ch.charCodeAt(0))) {
+ ++lineNumber;
+ lineStart = index;
+ }
+ str += ch;
+ }
+ }
+ return {
+ type: Token.JSXText,
+ value: str,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ range: [start, index]
+ };
+ }
+
+ function scanJSXStringLiteral() {
+ var innerToken, quote, start;
+
+ quote = source[index];
+ assert((quote === '\'' || quote === '"'),
+ 'String literal must starts with a quote');
+
+ start = index;
+ ++index;
+
+ innerToken = scanJSXText([quote]);
+
+ if (quote !== source[index]) {
+ throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
+ }
+
+ ++index;
+
+ innerToken.range = [start, index];
+
+ return innerToken;
+ }
+
+ /**
+ * Between JSX opening and closing tags (e.g. <foo>HERE</foo>), anything that
+ * is not another JSX tag and is not an expression wrapped by {} is text.
+ */
+ function advanceJSXChild() {
+ var ch = source.charCodeAt(index);
+
+ // '<' 60, '>' 62, '{' 123, '}' 125
+ if (ch !== 60 && ch !== 62 && ch !== 123 && ch !== 125) {
+ return scanJSXText(['<', '>', '{', '}']);
+ }
+
+ return scanPunctuator();
+ }
+
+ function parseJSXIdentifier() {
+ var token, marker = markerCreate();
+
+ if (lookahead.type !== Token.JSXIdentifier) {
+ throwUnexpected(lookahead);
+ }
+
+ token = lex();
+ return markerApply(marker, delegate.createJSXIdentifier(token.value));
+ }
+
+ function parseJSXNamespacedName() {
+ var namespace, name, marker = markerCreate();
+
+ namespace = parseJSXIdentifier();
+ expect(':');
+ name = parseJSXIdentifier();
+
+ return markerApply(marker, delegate.createJSXNamespacedName(namespace, name));
+ }
+
+ function parseJSXMemberExpression() {
+ var marker = markerCreate(),
+ expr = parseJSXIdentifier();
+
+ while (match('.')) {
+ lex();
+ expr = markerApply(marker, delegate.createJSXMemberExpression(expr, parseJSXIdentifier()));
+ }
+
+ return expr;
+ }
+
+ function parseJSXElementName() {
+ if (lookahead2().value === ':') {
+ return parseJSXNamespacedName();
+ }
+ if (lookahead2().value === '.') {
+ return parseJSXMemberExpression();
+ }
+
+ return parseJSXIdentifier();
+ }
+
+ function parseJSXAttributeName() {
+ if (lookahead2().value === ':') {
+ return parseJSXNamespacedName();
+ }
+
+ return parseJSXIdentifier();
+ }
+
+ function parseJSXAttributeValue() {
+ var value, marker;
+ if (match('{')) {
+ value = parseJSXExpressionContainer();
+ if (value.expression.type === Syntax.JSXEmptyExpression) {
+ throwError(
+ value,
+ 'JSX attributes must only be assigned a non-empty ' +
+ 'expression'
+ );
+ }
+ } else if (match('<')) {
+ value = parseJSXElement();
+ } else if (lookahead.type === Token.JSXText) {
+ marker = markerCreate();
+ value = markerApply(marker, delegate.createLiteral(lex()));
+ } else {
+ throwError({}, Messages.InvalidJSXAttributeValue);
+ }
+ return value;
+ }
+
+ function parseJSXEmptyExpression() {
+ var marker = markerCreatePreserveWhitespace();
+ while (source.charAt(index) !== '}') {
+ index++;
+ }
+ return markerApply(marker, delegate.createJSXEmptyExpression());
+ }
+
+ function parseJSXExpressionContainer() {
+ var expression, origInJSXChild, origInJSXTag, marker = markerCreate();
+
+ origInJSXChild = state.inJSXChild;
+ origInJSXTag = state.inJSXTag;
+ state.inJSXChild = false;
+ state.inJSXTag = false;
+
+ expect('{');
+
+ if (match('}')) {
+ expression = parseJSXEmptyExpression();
+ } else {
+ expression = parseExpression();
+ }
+
+ state.inJSXChild = origInJSXChild;
+ state.inJSXTag = origInJSXTag;
+
+ expect('}');
+
+ return markerApply(marker, delegate.createJSXExpressionContainer(expression));
+ }
+
+ function parseJSXSpreadAttribute() {
+ var expression, origInJSXChild, origInJSXTag, marker = markerCreate();
+
+ origInJSXChild = state.inJSXChild;
+ origInJSXTag = state.inJSXTag;
+ state.inJSXChild = false;
+ state.inJSXTag = false;
+
+ expect('{');
+ expect('...');
+
+ expression = parseAssignmentExpression();
+
+ state.inJSXChild = origInJSXChild;
+ state.inJSXTag = origInJSXTag;
+
+ expect('}');
+
+ return markerApply(marker, delegate.createJSXSpreadAttribute(expression));
+ }
+
+ function parseJSXAttribute() {
+ var name, marker;
+
+ if (match('{')) {
+ return parseJSXSpreadAttribute();
+ }
+
+ marker = markerCreate();
+
+ name = parseJSXAttributeName();
+
+ // HTML empty attribute
+ if (match('=')) {
+ lex();
+ return markerApply(marker, delegate.createJSXAttribute(name, parseJSXAttributeValue()));
+ }
+
+ return markerApply(marker, delegate.createJSXAttribute(name));
+ }
+
+ function parseJSXChild() {
+ var token, marker;
+ if (match('{')) {
+ token = parseJSXExpressionContainer();
+ } else if (lookahead.type === Token.JSXText) {
+ marker = markerCreatePreserveWhitespace();
+ token = markerApply(marker, delegate.createLiteral(lex()));
+ } else if (match('<')) {
+ token = parseJSXElement();
+ } else {
+ throwUnexpected(lookahead);
+ }
+ return token;
+ }
+
+ function parseJSXClosingElement() {
+ var name, origInJSXChild, origInJSXTag, marker = markerCreate();
+ origInJSXChild = state.inJSXChild;
+ origInJSXTag = state.inJSXTag;
+ state.inJSXChild = false;
+ state.inJSXTag = true;
+ expect('<');
+ expect('/');
+ name = parseJSXElementName();
+ // Because advance() (called by lex() called by expect()) expects there
+ // to be a valid token after >, it needs to know whether to look for a
+ // standard JS token or an JSX text node
+ state.inJSXChild = origInJSXChild;
+ state.inJSXTag = origInJSXTag;
+ expect('>');
+ return markerApply(marker, delegate.createJSXClosingElement(name));
+ }
+
+ function parseJSXOpeningElement() {
+ var name, attributes = [], selfClosing = false, origInJSXChild, origInJSXTag, marker = markerCreate();
+
+ origInJSXChild = state.inJSXChild;
+ origInJSXTag = state.inJSXTag;
+ state.inJSXChild = false;
+ state.inJSXTag = true;
+
+ expect('<');
+
+ name = parseJSXElementName();
+
+ while (index < length &&
+ lookahead.value !== '/' &&
+ lookahead.value !== '>') {
+ attributes.push(parseJSXAttribute());
+ }
+
+ state.inJSXTag = origInJSXTag;
+
+ if (lookahead.value === '/') {
+ expect('/');
+ // Because advance() (called by lex() called by expect()) expects
+ // there to be a valid token after >, it needs to know whether to
+ // look for a standard JS token or an JSX text node
+ state.inJSXChild = origInJSXChild;
+ expect('>');
+ selfClosing = true;
+ } else {
+ state.inJSXChild = true;
+ expect('>');
+ }
+ return markerApply(marker, delegate.createJSXOpeningElement(name, attributes, selfClosing));
+ }
+
+ function parseJSXElement() {
+ var openingElement, closingElement = null, children = [], origInJSXChild, origInJSXTag, marker = markerCreate();
+
+ origInJSXChild = state.inJSXChild;
+ origInJSXTag = state.inJSXTag;
+ openingElement = parseJSXOpeningElement();
+
+ if (!openingElement.selfClosing) {
+ while (index < length) {
+ state.inJSXChild = false; // Call lookahead2() with inJSXChild = false because </ should not be considered in the child
+ if (lookahead.value === '<' && lookahead2().value === '/') {
+ break;
+ }
+ state.inJSXChild = true;
+ children.push(parseJSXChild());
+ }
+ state.inJSXChild = origInJSXChild;
+ state.inJSXTag = origInJSXTag;
+ closingElement = parseJSXClosingElement();
+ if (getQualifiedJSXName(closingElement.name) !== getQualifiedJSXName(openingElement.name)) {
+ throwError({}, Messages.ExpectedJSXClosingTag, getQualifiedJSXName(openingElement.name));
+ }
+ }
+
+ // When (erroneously) writing two adjacent tags like
+ //
+ // var x = <div>one</div><div>two</div>;
+ //
+ // the default error message is a bit incomprehensible. Since it's
+ // rarely (never?) useful to write a less-than sign after an JSX
+ // element, we disallow it here in the parser in order to provide a
+ // better error message. (In the rare case that the less-than operator
+ // was intended, the left tag can be wrapped in parentheses.)
+ if (!origInJSXChild && match('<')) {
+ throwError(lookahead, Messages.AdjacentJSXElements);
+ }
+
+ return markerApply(marker, delegate.createJSXElement(openingElement, closingElement, children));
+ }
+
+ function parseTypeAlias() {
+ var id, marker = markerCreate(), typeParameters = null, right;
+ expectContextualKeyword('type');
+ id = parseVariableIdentifier();
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+ expect('=');
+ right = parseType();
+ consumeSemicolon();
+ return markerApply(marker, delegate.createTypeAlias(id, typeParameters, right));
+ }
+
+ function parseInterfaceExtends() {
+ var marker = markerCreate(), id, typeParameters = null;
+
+ id = parseVariableIdentifier();
+ if (match('<')) {
+ typeParameters = parseTypeParameterInstantiation();
+ }
+
+ return markerApply(marker, delegate.createInterfaceExtends(
+ id,
+ typeParameters
+ ));
+ }
+
+ function parseInterfaceish(marker, allowStatic) {
+ var body, bodyMarker, extended = [], id,
+ typeParameters = null;
+
+ id = parseVariableIdentifier();
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+
+ if (matchKeyword('extends')) {
+ expectKeyword('extends');
+
+ while (index < length) {
+ extended.push(parseInterfaceExtends());
+ if (!match(',')) {
+ break;
+ }
+ expect(',');
+ }
+ }
+
+ bodyMarker = markerCreate();
+ body = markerApply(bodyMarker, parseObjectType(allowStatic));
+
+ return markerApply(marker, delegate.createInterface(
+ id,
+ typeParameters,
+ body,
+ extended
+ ));
+ }
+
+ function parseInterface() {
+ var marker = markerCreate();
+
+ if (strict) {
+ expectKeyword('interface');
+ } else {
+ expectContextualKeyword('interface');
+ }
+
+ return parseInterfaceish(marker, /* allowStatic */false);
+ }
+
+ function parseDeclareClass() {
+ var marker = markerCreate(), ret;
+ expectContextualKeyword('declare');
+ expectKeyword('class');
+
+ ret = parseInterfaceish(marker, /* allowStatic */true);
+ ret.type = Syntax.DeclareClass;
+ return ret;
+ }
+
+ function parseDeclareFunction() {
+ var id, idMarker,
+ marker = markerCreate(), params, returnType, rest, tmp,
+ typeParameters = null, value, valueMarker;
+
+ expectContextualKeyword('declare');
+ expectKeyword('function');
+ idMarker = markerCreate();
+ id = parseVariableIdentifier();
+
+ valueMarker = markerCreate();
+ if (match('<')) {
+ typeParameters = parseTypeParameterDeclaration();
+ }
+ expect('(');
+ tmp = parseFunctionTypeParams();
+ params = tmp.params;
+ rest = tmp.rest;
+ expect(')');
+
+ expect(':');
+ returnType = parseType();
+
+ value = markerApply(valueMarker, delegate.createFunctionTypeAnnotation(
+ params,
+ returnType,
+ rest,
+ typeParameters
+ ));
+
+ id.typeAnnotation = markerApply(valueMarker, delegate.createTypeAnnotation(
+ value
+ ));
+ markerApply(idMarker, id);
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createDeclareFunction(
+ id
+ ));
+ }
+
+ function parseDeclareVariable() {
+ var id, marker = markerCreate();
+ expectContextualKeyword('declare');
+ expectKeyword('var');
+ id = parseTypeAnnotatableIdentifier();
+
+ consumeSemicolon();
+
+ return markerApply(marker, delegate.createDeclareVariable(
+ id
+ ));
+ }
+
+ function parseDeclareModule() {
+ var body = [], bodyMarker, id, idMarker, marker = markerCreate(), token;
+ expectContextualKeyword('declare');
+ expectContextualKeyword('module');
+
+ if (lookahead.type === Token.StringLiteral) {
+ if (strict && lookahead.octal) {
+ throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
+ }
+ idMarker = markerCreate();
+ id = markerApply(idMarker, delegate.createLiteral(lex()));
+ } else {
+ id = parseVariableIdentifier();
+ }
+
+ bodyMarker = markerCreate();
+ expect('{');
+ while (index < length && !match('}')) {
+ token = lookahead2();
+ switch (token.value) {
+ case 'class':
+ body.push(parseDeclareClass());
+ break;
+ case 'function':
+ body.push(parseDeclareFunction());
+ break;
+ case 'var':
+ body.push(parseDeclareVariable());
+ break;
+ default:
+ throwUnexpected(lookahead);
+ }
+ }
+ expect('}');
+
+ return markerApply(marker, delegate.createDeclareModule(
+ id,
+ markerApply(bodyMarker, delegate.createBlockStatement(body))
+ ));
+ }
+
+ function collectToken() {
+ var loc, token, range, value, entry;
+
+ /* istanbul ignore else */
+ if (!state.inJSXChild) {
+ skipComment();
+ }
+
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart
+ }
+ };
+
+ token = extra.advance();
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+
+ if (token.type !== Token.EOF) {
+ range = [token.range[0], token.range[1]];
+ value = source.slice(token.range[0], token.range[1]);
+ entry = {
+ type: TokenName[token.type],
+ value: value,
+ range: range,
+ loc: loc
+ };
+ if (token.regex) {
+ entry.regex = {
+ pattern: token.regex.pattern,
+ flags: token.regex.flags
+ };
+ }
+ extra.tokens.push(entry);
+ }
+
+ return token;
+ }
+
+ function collectRegex() {
+ var pos, loc, regex, token;
+
+ skipComment();
+
+ pos = index;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart
+ }
+ };
+
+ regex = extra.scanRegExp();
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+
+ if (!extra.tokenize) {
+ /* istanbul ignore next */
+ // Pop the previous token, which is likely '/' or '/='
+ if (extra.tokens.length > 0) {
+ token = extra.tokens[extra.tokens.length - 1];
+ if (token.range[0] === pos && token.type === 'Punctuator') {
+ if (token.value === '/' || token.value === '/=') {
+ extra.tokens.pop();
+ }
+ }
+ }
+
+ extra.tokens.push({
+ type: 'RegularExpression',
+ value: regex.literal,
+ regex: regex.regex,
+ range: [pos, index],
+ loc: loc
+ });
+ }
+
+ return regex;
+ }
+
+ function filterTokenLocation() {
+ var i, entry, token, tokens = [];
+
+ for (i = 0; i < extra.tokens.length; ++i) {
+ entry = extra.tokens[i];
+ token = {
+ type: entry.type,
+ value: entry.value
+ };
+ if (entry.regex) {
+ token.regex = {
+ pattern: entry.regex.pattern,
+ flags: entry.regex.flags
+ };
+ }
+ if (extra.range) {
+ token.range = entry.range;
+ }
+ if (extra.loc) {
+ token.loc = entry.loc;
+ }
+ tokens.push(token);
+ }
+
+ extra.tokens = tokens;
+ }
+
+ function patch() {
+ if (typeof extra.tokens !== 'undefined') {
+ extra.advance = advance;
+ extra.scanRegExp = scanRegExp;
+
+ advance = collectToken;
+ scanRegExp = collectRegex;
+ }
+ }
+
+ function unpatch() {
+ if (typeof extra.scanRegExp === 'function') {
+ advance = extra.advance;
+ scanRegExp = extra.scanRegExp;
+ }
+ }
+
+ // This is used to modify the delegate.
+
+ function extend(object, properties) {
+ var entry, result = {};
+
+ for (entry in object) {
+ /* istanbul ignore else */
+ if (object.hasOwnProperty(entry)) {
+ result[entry] = object[entry];
+ }
+ }
+
+ for (entry in properties) {
+ /* istanbul ignore else */
+ if (properties.hasOwnProperty(entry)) {
+ result[entry] = properties[entry];
+ }
+ }
+
+ return result;
+ }
+
+ function tokenize(code, options) {
+ var toString,
+ token,
+ tokens;
+
+ toString = String;
+ if (typeof code !== 'string' && !(code instanceof String)) {
+ code = toString(code);
+ }
+
+ delegate = SyntaxTreeDelegate;
+ source = code;
+ index = 0;
+ lineNumber = (source.length > 0) ? 1 : 0;
+ lineStart = 0;
+ length = source.length;
+ lookahead = null;
+ state = {
+ allowKeyword: true,
+ allowIn: true,
+ labelSet: new StringMap(),
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ lastCommentStart: -1
+ };
+
+ extra = {};
+
+ // Options matching.
+ options = options || {};
+
+ // Of course we collect tokens here.
+ options.tokens = true;
+ extra.tokens = [];
+ extra.tokenize = true;
+ // The following two fields are necessary to compute the Regex tokens.
+ extra.openParenToken = -1;
+ extra.openCurlyToken = -1;
+
+ extra.range = (typeof options.range === 'boolean') && options.range;
+ extra.loc = (typeof options.loc === 'boolean') && options.loc;
+
+ if (typeof options.comment === 'boolean' && options.comment) {
+ extra.comments = [];
+ }
+ if (typeof options.tolerant === 'boolean' && options.tolerant) {
+ extra.errors = [];
+ }
+
+ patch();
+
+ try {
+ peek();
+ if (lookahead.type === Token.EOF) {
+ return extra.tokens;
+ }
+
+ token = lex();
+ while (lookahead.type !== Token.EOF) {
+ try {
+ token = lex();
+ } catch (lexError) {
+ token = lookahead;
+ if (extra.errors) {
+ extra.errors.push(lexError);
+ // We have to break on the first error
+ // to avoid infinite loops.
+ break;
+ } else {
+ throw lexError;
+ }
+ }
+ }
+
+ filterTokenLocation();
+ tokens = extra.tokens;
+ if (typeof extra.comments !== 'undefined') {
+ tokens.comments = extra.comments;
+ }
+ if (typeof extra.errors !== 'undefined') {
+ tokens.errors = extra.errors;
+ }
+ } catch (e) {
+ throw e;
+ } finally {
+ unpatch();
+ extra = {};
+ }
+ return tokens;
+ }
+
+ function parse(code, options) {
+ var program, toString;
+
+ toString = String;
+ if (typeof code !== 'string' && !(code instanceof String)) {
+ code = toString(code);
+ }
+
+ delegate = SyntaxTreeDelegate;
+ source = code;
+ index = 0;
+ lineNumber = (source.length > 0) ? 1 : 0;
+ lineStart = 0;
+ length = source.length;
+ lookahead = null;
+ state = {
+ allowKeyword: false,
+ allowIn: true,
+ labelSet: new StringMap(),
+ parenthesizedCount: 0,
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ inJSXChild: false,
+ inJSXTag: false,
+ inType: false,
+ lastCommentStart: -1,
+ yieldAllowed: false,
+ awaitAllowed: false
+ };
+
+ extra = {};
+ if (typeof options !== 'undefined') {
+ extra.range = (typeof options.range === 'boolean') && options.range;
+ extra.loc = (typeof options.loc === 'boolean') && options.loc;
+ extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment;
+
+ if (extra.loc && options.source !== null && options.source !== undefined) {
+ delegate = extend(delegate, {
+ 'postProcess': function (node) {
+ node.loc.source = toString(options.source);
+ return node;
+ }
+ });
+ }
+
+ extra.sourceType = options.sourceType;
+ if (typeof options.tokens === 'boolean' && options.tokens) {
+ extra.tokens = [];
+ }
+ if (typeof options.comment === 'boolean' && options.comment) {
+ extra.comments = [];
+ }
+ if (typeof options.tolerant === 'boolean' && options.tolerant) {
+ extra.errors = [];
+ }
+ if (extra.attachComment) {
+ extra.range = true;
+ extra.comments = [];
+ extra.bottomRightStack = [];
+ extra.trailingComments = [];
+ extra.leadingComments = [];
+ }
+ }
+
+ patch();
+ try {
+ program = parseProgram();
+ if (typeof extra.comments !== 'undefined') {
+ program.comments = extra.comments;
+ }
+ if (typeof extra.tokens !== 'undefined') {
+ filterTokenLocation();
+ program.tokens = extra.tokens;
+ }
+ if (typeof extra.errors !== 'undefined') {
+ program.errors = extra.errors;
+ }
+ } catch (e) {
+ throw e;
+ } finally {
+ unpatch();
+ extra = {};
+ }
+
+ return program;
+ }
+
+ // Sync with *.json manifests.
+ exports.version = '13001.1001.0-dev-harmony-fb';
+
+ exports.tokenize = tokenize;
+
+ exports.parse = parse;
+
+ // Deep copy.
+ /* istanbul ignore next */
+ exports.Syntax = (function () {
+ var name, types = {};
+
+ if (typeof Object.create === 'function') {
+ types = Object.create(null);
+ }
+
+ for (name in Syntax) {
+ if (Syntax.hasOwnProperty(name)) {
+ types[name] = Syntax[name];
+ }
+ }
+
+ if (typeof Object.freeze === 'function') {
+ Object.freeze(types);
+ }
+
+ return types;
+ }());
+
+}));
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+},{}],10:[function(_dereq_,module,exports){
+var Base62 = (function (my) {
+ my.chars = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]
+
+ my.encode = function(i){
+ if (i === 0) {return '0'}
+ var s = ''
+ while (i > 0) {
+ s = this.chars[i % 62] + s
+ i = Math.floor(i/62)
+ }
+ return s
+ };
+ my.decode = function(a,b,c,d){
+ for (
+ b = c = (
+ a === (/\W|_|^$/.test(a += "") || a)
+ ) - 1;
+ d = a.charCodeAt(c++);
+ )
+ b = b * 62 + d - [, 48, 29, 87][d >> 5];
+ return b
+ };
+
+ return my;
+}({}));
+
+module.exports = Base62
+},{}],11:[function(_dereq_,module,exports){
+/*
+ * Copyright 2009-2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE.txt or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+exports.SourceMapGenerator = _dereq_('./source-map/source-map-generator').SourceMapGenerator;
+exports.SourceMapConsumer = _dereq_('./source-map/source-map-consumer').SourceMapConsumer;
+exports.SourceNode = _dereq_('./source-map/source-node').SourceNode;
+
+},{"./source-map/source-map-consumer":16,"./source-map/source-map-generator":17,"./source-map/source-node":18}],12:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var util = _dereq_('./util');
+
+ /**
+ * A data structure which is a combination of an array and a set. Adding a new
+ * member is O(1), testing for membership is O(1), and finding the index of an
+ * element is O(1). Removing elements from the set is not supported. Only
+ * strings are supported for membership.
+ */
+ function ArraySet() {
+ this._array = [];
+ this._set = {};
+ }
+
+ /**
+ * Static method for creating ArraySet instances from an existing array.
+ */
+ ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
+ var set = new ArraySet();
+ for (var i = 0, len = aArray.length; i < len; i++) {
+ set.add(aArray[i], aAllowDuplicates);
+ }
+ return set;
+ };
+
+ /**
+ * Add the given string to this set.
+ *
+ * @param String aStr
+ */
+ ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
+ var isDuplicate = this.has(aStr);
+ var idx = this._array.length;
+ if (!isDuplicate || aAllowDuplicates) {
+ this._array.push(aStr);
+ }
+ if (!isDuplicate) {
+ this._set[util.toSetString(aStr)] = idx;
+ }
+ };
+
+ /**
+ * Is the given string a member of this set?
+ *
+ * @param String aStr
+ */
+ ArraySet.prototype.has = function ArraySet_has(aStr) {
+ return Object.prototype.hasOwnProperty.call(this._set,
+ util.toSetString(aStr));
+ };
+
+ /**
+ * What is the index of the given string in the array?
+ *
+ * @param String aStr
+ */
+ ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
+ if (this.has(aStr)) {
+ return this._set[util.toSetString(aStr)];
+ }
+ throw new Error('"' + aStr + '" is not in the set.');
+ };
+
+ /**
+ * What is the element at the given index?
+ *
+ * @param Number aIdx
+ */
+ ArraySet.prototype.at = function ArraySet_at(aIdx) {
+ if (aIdx >= 0 && aIdx < this._array.length) {
+ return this._array[aIdx];
+ }
+ throw new Error('No element indexed by ' + aIdx);
+ };
+
+ /**
+ * Returns the array representation of this set (which has the proper indices
+ * indicated by indexOf). Note that this is a copy of the internal array used
+ * for storing the members so that no one can mess with internal state.
+ */
+ ArraySet.prototype.toArray = function ArraySet_toArray() {
+ return this._array.slice();
+ };
+
+ exports.ArraySet = ArraySet;
+
+});
+
+},{"./util":19,"amdefine":20}],13:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ *
+ * Based on the Base 64 VLQ implementation in Closure Compiler:
+ * https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
+ *
+ * Copyright 2011 The Closure Compiler Authors. All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var base64 = _dereq_('./base64');
+
+ // A single base 64 digit can contain 6 bits of data. For the base 64 variable
+ // length quantities we use in the source map spec, the first bit is the sign,
+ // the next four bits are the actual value, and the 6th bit is the
+ // continuation bit. The continuation bit tells us whether there are more
+ // digits in this value following this digit.
+ //
+ // Continuation
+ // | Sign
+ // | |
+ // V V
+ // 101011
+
+ var VLQ_BASE_SHIFT = 5;
+
+ // binary: 100000
+ var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
+
+ // binary: 011111
+ var VLQ_BASE_MASK = VLQ_BASE - 1;
+
+ // binary: 100000
+ var VLQ_CONTINUATION_BIT = VLQ_BASE;
+
+ /**
+ * Converts from a two-complement value to a value where the sign bit is
+ * is placed in the least significant bit. For example, as decimals:
+ * 1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
+ * 2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
+ */
+ function toVLQSigned(aValue) {
+ return aValue < 0
+ ? ((-aValue) << 1) + 1
+ : (aValue << 1) + 0;
+ }
+
+ /**
+ * Converts to a two-complement value from a value where the sign bit is
+ * is placed in the least significant bit. For example, as decimals:
+ * 2 (10 binary) becomes 1, 3 (11 binary) becomes -1
+ * 4 (100 binary) becomes 2, 5 (101 binary) becomes -2
+ */
+ function fromVLQSigned(aValue) {
+ var isNegative = (aValue & 1) === 1;
+ var shifted = aValue >> 1;
+ return isNegative
+ ? -shifted
+ : shifted;
+ }
+
+ /**
+ * Returns the base 64 VLQ encoded value.
+ */
+ exports.encode = function base64VLQ_encode(aValue) {
+ var encoded = "";
+ var digit;
+
+ var vlq = toVLQSigned(aValue);
+
+ do {
+ digit = vlq & VLQ_BASE_MASK;
+ vlq >>>= VLQ_BASE_SHIFT;
+ if (vlq > 0) {
+ // There are still more digits in this value, so we must make sure the
+ // continuation bit is marked.
+ digit |= VLQ_CONTINUATION_BIT;
+ }
+ encoded += base64.encode(digit);
+ } while (vlq > 0);
+
+ return encoded;
+ };
+
+ /**
+ * Decodes the next base 64 VLQ value from the given string and returns the
+ * value and the rest of the string.
+ */
+ exports.decode = function base64VLQ_decode(aStr) {
+ var i = 0;
+ var strLen = aStr.length;
+ var result = 0;
+ var shift = 0;
+ var continuation, digit;
+
+ do {
+ if (i >= strLen) {
+ throw new Error("Expected more digits in base 64 VLQ value.");
+ }
+ digit = base64.decode(aStr.charAt(i++));
+ continuation = !!(digit & VLQ_CONTINUATION_BIT);
+ digit &= VLQ_BASE_MASK;
+ result = result + (digit << shift);
+ shift += VLQ_BASE_SHIFT;
+ } while (continuation);
+
+ return {
+ value: fromVLQSigned(result),
+ rest: aStr.slice(i)
+ };
+ };
+
+});
+
+},{"./base64":14,"amdefine":20}],14:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var charToIntMap = {};
+ var intToCharMap = {};
+
+ 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+ .split('')
+ .forEach(function (ch, index) {
+ charToIntMap[ch] = index;
+ intToCharMap[index] = ch;
+ });
+
+ /**
+ * Encode an integer in the range of 0 to 63 to a single base 64 digit.
+ */
+ exports.encode = function base64_encode(aNumber) {
+ if (aNumber in intToCharMap) {
+ return intToCharMap[aNumber];
+ }
+ throw new TypeError("Must be between 0 and 63: " + aNumber);
+ };
+
+ /**
+ * Decode a single base 64 digit to an integer.
+ */
+ exports.decode = function base64_decode(aChar) {
+ if (aChar in charToIntMap) {
+ return charToIntMap[aChar];
+ }
+ throw new TypeError("Not a valid base 64 digit: " + aChar);
+ };
+
+});
+
+},{"amdefine":20}],15:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ /**
+ * Recursive implementation of binary search.
+ *
+ * @param aLow Indices here and lower do not contain the needle.
+ * @param aHigh Indices here and higher do not contain the needle.
+ * @param aNeedle The element being searched for.
+ * @param aHaystack The non-empty array being searched.
+ * @param aCompare Function which takes two elements and returns -1, 0, or 1.
+ */
+ function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {
+ // This function terminates when one of the following is true:
+ //
+ // 1. We find the exact element we are looking for.
+ //
+ // 2. We did not find the exact element, but we can return the next
+ // closest element that is less than that element.
+ //
+ // 3. We did not find the exact element, and there is no next-closest
+ // element which is less than the one we are searching for, so we
+ // return null.
+ var mid = Math.floor((aHigh - aLow) / 2) + aLow;
+ var cmp = aCompare(aNeedle, aHaystack[mid], true);
+ if (cmp === 0) {
+ // Found the element we are looking for.
+ return aHaystack[mid];
+ }
+ else if (cmp > 0) {
+ // aHaystack[mid] is greater than our needle.
+ if (aHigh - mid > 1) {
+ // The element is in the upper half.
+ return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);
+ }
+ // We did not find an exact match, return the next closest one
+ // (termination case 2).
+ return aHaystack[mid];
+ }
+ else {
+ // aHaystack[mid] is less than our needle.
+ if (mid - aLow > 1) {
+ // The element is in the lower half.
+ return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);
+ }
+ // The exact needle element was not found in this haystack. Determine if
+ // we are in termination case (2) or (3) and return the appropriate thing.
+ return aLow < 0
+ ? null
+ : aHaystack[aLow];
+ }
+ }
+
+ /**
+ * This is an implementation of binary search which will always try and return
+ * the next lowest value checked if there is no exact hit. This is because
+ * mappings between original and generated line/col pairs are single points,
+ * and there is an implicit region between each of them, so a miss just means
+ * that you aren't on the very start of a region.
+ *
+ * @param aNeedle The element you are looking for.
+ * @param aHaystack The array that is being searched.
+ * @param aCompare A function which takes the needle and an element in the
+ * array and returns -1, 0, or 1 depending on whether the needle is less
+ * than, equal to, or greater than the element, respectively.
+ */
+ exports.search = function search(aNeedle, aHaystack, aCompare) {
+ return aHaystack.length > 0
+ ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare)
+ : null;
+ };
+
+});
+
+},{"amdefine":20}],16:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var util = _dereq_('./util');
+ var binarySearch = _dereq_('./binary-search');
+ var ArraySet = _dereq_('./array-set').ArraySet;
+ var base64VLQ = _dereq_('./base64-vlq');
+
+ /**
+ * A SourceMapConsumer instance represents a parsed source map which we can
+ * query for information about the original file positions by giving it a file
+ * position in the generated source.
+ *
+ * The only parameter is the raw source map (either as a JSON string, or
+ * already parsed to an object). According to the spec, source maps have the
+ * following attributes:
+ *
+ * - version: Which version of the source map spec this map is following.
+ * - sources: An array of URLs to the original source files.
+ * - names: An array of identifiers which can be referrenced by individual mappings.
+ * - sourceRoot: Optional. The URL root from which all sources are relative.
+ * - sourcesContent: Optional. An array of contents of the original source files.
+ * - mappings: A string of base64 VLQs which contain the actual mappings.
+ * - file: The generated file this source map is associated with.
+ *
+ * Here is an example source map, taken from the source map spec[0]:
+ *
+ * {
+ * version : 3,
+ * file: "out.js",
+ * sourceRoot : "",
+ * sources: ["foo.js", "bar.js"],
+ * names: ["src", "maps", "are", "fun"],
+ * mappings: "AA,AB;;ABCDE;"
+ * }
+ *
+ * [0]: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1#
+ */
+ function SourceMapConsumer(aSourceMap) {
+ var sourceMap = aSourceMap;
+ if (typeof aSourceMap === 'string') {
+ sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
+ }
+
+ var version = util.getArg(sourceMap, 'version');
+ var sources = util.getArg(sourceMap, 'sources');
+ // Sass 3.3 leaves out the 'names' array, so we deviate from the spec (which
+ // requires the array) to play nice here.
+ var names = util.getArg(sourceMap, 'names', []);
+ var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
+ var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
+ var mappings = util.getArg(sourceMap, 'mappings');
+ var file = util.getArg(sourceMap, 'file', null);
+
+ // Once again, Sass deviates from the spec and supplies the version as a
+ // string rather than a number, so we use loose equality checking here.
+ if (version != this._version) {
+ throw new Error('Unsupported version: ' + version);
+ }
+
+ // Pass `true` below to allow duplicate names and sources. While source maps
+ // are intended to be compressed and deduplicated, the TypeScript compiler
+ // sometimes generates source maps with duplicates in them. See Github issue
+ // #72 and bugzil.la/889492.
+ this._names = ArraySet.fromArray(names, true);
+ this._sources = ArraySet.fromArray(sources, true);
+
+ this.sourceRoot = sourceRoot;
+ this.sourcesContent = sourcesContent;
+ this._mappings = mappings;
+ this.file = file;
+ }
+
+ /**
+ * Create a SourceMapConsumer from a SourceMapGenerator.
+ *
+ * @param SourceMapGenerator aSourceMap
+ * The source map that will be consumed.
+ * @returns SourceMapConsumer
+ */
+ SourceMapConsumer.fromSourceMap =
+ function SourceMapConsumer_fromSourceMap(aSourceMap) {
+ var smc = Object.create(SourceMapConsumer.prototype);
+
+ smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
+ smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
+ smc.sourceRoot = aSourceMap._sourceRoot;
+ smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(),
+ smc.sourceRoot);
+ smc.file = aSourceMap._file;
+
+ smc.__generatedMappings = aSourceMap._mappings.slice()
+ .sort(util.compareByGeneratedPositions);
+ smc.__originalMappings = aSourceMap._mappings.slice()
+ .sort(util.compareByOriginalPositions);
+
+ return smc;
+ };
+
+ /**
+ * The version of the source mapping spec that we are consuming.
+ */
+ SourceMapConsumer.prototype._version = 3;
+
+ /**
+ * The list of original sources.
+ */
+ Object.defineProperty(SourceMapConsumer.prototype, 'sources', {
+ get: function () {
+ return this._sources.toArray().map(function (s) {
+ return this.sourceRoot ? util.join(this.sourceRoot, s) : s;
+ }, this);
+ }
+ });
+
+ // `__generatedMappings` and `__originalMappings` are arrays that hold the
+ // parsed mapping coordinates from the source map's "mappings" attribute. They
+ // are lazily instantiated, accessed via the `_generatedMappings` and
+ // `_originalMappings` getters respectively, and we only parse the mappings
+ // and create these arrays once queried for a source location. We jump through
+ // these hoops because there can be many thousands of mappings, and parsing
+ // them is expensive, so we only want to do it if we must.
+ //
+ // Each object in the arrays is of the form:
+ //
+ // {
+ // generatedLine: The line number in the generated code,
+ // generatedColumn: The column number in the generated code,
+ // source: The path to the original source file that generated this
+ // chunk of code,
+ // originalLine: The line number in the original source that
+ // corresponds to this chunk of generated code,
+ // originalColumn: The column number in the original source that
+ // corresponds to this chunk of generated code,
+ // name: The name of the original symbol which generated this chunk of
+ // code.
+ // }
+ //
+ // All properties except for `generatedLine` and `generatedColumn` can be
+ // `null`.
+ //
+ // `_generatedMappings` is ordered by the generated positions.
+ //
+ // `_originalMappings` is ordered by the original positions.
+
+ SourceMapConsumer.prototype.__generatedMappings = null;
+ Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
+ get: function () {
+ if (!this.__generatedMappings) {
+ this.__generatedMappings = [];
+ this.__originalMappings = [];
+ this._parseMappings(this._mappings, this.sourceRoot);
+ }
+
+ return this.__generatedMappings;
+ }
+ });
+
+ SourceMapConsumer.prototype.__originalMappings = null;
+ Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
+ get: function () {
+ if (!this.__originalMappings) {
+ this.__generatedMappings = [];
+ this.__originalMappings = [];
+ this._parseMappings(this._mappings, this.sourceRoot);
+ }
+
+ return this.__originalMappings;
+ }
+ });
+
+ /**
+ * Parse the mappings in a string in to a data structure which we can easily
+ * query (the ordered arrays in the `this.__generatedMappings` and
+ * `this.__originalMappings` properties).
+ */
+ SourceMapConsumer.prototype._parseMappings =
+ function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
+ var generatedLine = 1;
+ var previousGeneratedColumn = 0;
+ var previousOriginalLine = 0;
+ var previousOriginalColumn = 0;
+ var previousSource = 0;
+ var previousName = 0;
+ var mappingSeparator = /^[,;]/;
+ var str = aStr;
+ var mapping;
+ var temp;
+
+ while (str.length > 0) {
+ if (str.charAt(0) === ';') {
+ generatedLine++;
+ str = str.slice(1);
+ previousGeneratedColumn = 0;
+ }
+ else if (str.charAt(0) === ',') {
+ str = str.slice(1);
+ }
+ else {
+ mapping = {};
+ mapping.generatedLine = generatedLine;
+
+ // Generated column.
+ temp = base64VLQ.decode(str);
+ mapping.generatedColumn = previousGeneratedColumn + temp.value;
+ previousGeneratedColumn = mapping.generatedColumn;
+ str = temp.rest;
+
+ if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+ // Original source.
+ temp = base64VLQ.decode(str);
+ mapping.source = this._sources.at(previousSource + temp.value);
+ previousSource += temp.value;
+ str = temp.rest;
+ if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+ throw new Error('Found a source, but no line and column');
+ }
+
+ // Original line.
+ temp = base64VLQ.decode(str);
+ mapping.originalLine = previousOriginalLine + temp.value;
+ previousOriginalLine = mapping.originalLine;
+ // Lines are stored 0-based
+ mapping.originalLine += 1;
+ str = temp.rest;
+ if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
+ throw new Error('Found a source and line, but no column');
+ }
+
+ // Original column.
+ temp = base64VLQ.decode(str);
+ mapping.originalColumn = previousOriginalColumn + temp.value;
+ previousOriginalColumn = mapping.originalColumn;
+ str = temp.rest;
+
+ if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
+ // Original name.
+ temp = base64VLQ.decode(str);
+ mapping.name = this._names.at(previousName + temp.value);
+ previousName += temp.value;
+ str = temp.rest;
+ }
+ }
+
+ this.__generatedMappings.push(mapping);
+ if (typeof mapping.originalLine === 'number') {
+ this.__originalMappings.push(mapping);
+ }
+ }
+ }
+
+ this.__originalMappings.sort(util.compareByOriginalPositions);
+ };
+
+ /**
+ * Find the mapping that best matches the hypothetical "needle" mapping that
+ * we are searching for in the given "haystack" of mappings.
+ */
+ SourceMapConsumer.prototype._findMapping =
+ function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName,
+ aColumnName, aComparator) {
+ // To return the position we are searching for, we must first find the
+ // mapping for the given position and then return the opposite position it
+ // points to. Because the mappings are sorted, we can use binary search to
+ // find the best mapping.
+
+ if (aNeedle[aLineName] <= 0) {
+ throw new TypeError('Line must be greater than or equal to 1, got '
+ + aNeedle[aLineName]);
+ }
+ if (aNeedle[aColumnName] < 0) {
+ throw new TypeError('Column must be greater than or equal to 0, got '
+ + aNeedle[aColumnName]);
+ }
+
+ return binarySearch.search(aNeedle, aMappings, aComparator);
+ };
+
+ /**
+ * Returns the original source, line, and column information for the generated
+ * source's line and column positions provided. The only argument is an object
+ * with the following properties:
+ *
+ * - line: The line number in the generated source.
+ * - column: The column number in the generated source.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - source: The original source file, or null.
+ * - line: The line number in the original source, or null.
+ * - column: The column number in the original source, or null.
+ * - name: The original identifier, or null.
+ */
+ SourceMapConsumer.prototype.originalPositionFor =
+ function SourceMapConsumer_originalPositionFor(aArgs) {
+ var needle = {
+ generatedLine: util.getArg(aArgs, 'line'),
+ generatedColumn: util.getArg(aArgs, 'column')
+ };
+
+ var mapping = this._findMapping(needle,
+ this._generatedMappings,
+ "generatedLine",
+ "generatedColumn",
+ util.compareByGeneratedPositions);
+
+ if (mapping) {
+ var source = util.getArg(mapping, 'source', null);
+ if (source && this.sourceRoot) {
+ source = util.join(this.sourceRoot, source);
+ }
+ return {
+ source: source,
+ line: util.getArg(mapping, 'originalLine', null),
+ column: util.getArg(mapping, 'originalColumn', null),
+ name: util.getArg(mapping, 'name', null)
+ };
+ }
+
+ return {
+ source: null,
+ line: null,
+ column: null,
+ name: null
+ };
+ };
+
+ /**
+ * Returns the original source content. The only argument is the url of the
+ * original source file. Returns null if no original source content is
+ * availible.
+ */
+ SourceMapConsumer.prototype.sourceContentFor =
+ function SourceMapConsumer_sourceContentFor(aSource) {
+ if (!this.sourcesContent) {
+ return null;
+ }
+
+ if (this.sourceRoot) {
+ aSource = util.relative(this.sourceRoot, aSource);
+ }
+
+ if (this._sources.has(aSource)) {
+ return this.sourcesContent[this._sources.indexOf(aSource)];
+ }
+
+ var url;
+ if (this.sourceRoot
+ && (url = util.urlParse(this.sourceRoot))) {
+ // XXX: file:// URIs and absolute paths lead to unexpected behavior for
+ // many users. We can help them out when they expect file:// URIs to
+ // behave like it would if they were running a local HTTP server. See
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=885597.
+ var fileUriAbsPath = aSource.replace(/^file:\/\//, "");
+ if (url.scheme == "file"
+ && this._sources.has(fileUriAbsPath)) {
+ return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)]
+ }
+
+ if ((!url.path || url.path == "/")
+ && this._sources.has("/" + aSource)) {
+ return this.sourcesContent[this._sources.indexOf("/" + aSource)];
+ }
+ }
+
+ throw new Error('"' + aSource + '" is not in the SourceMap.');
+ };
+
+ /**
+ * Returns the generated line and column information for the original source,
+ * line, and column positions provided. The only argument is an object with
+ * the following properties:
+ *
+ * - source: The filename of the original source.
+ * - line: The line number in the original source.
+ * - column: The column number in the original source.
+ *
+ * and an object is returned with the following properties:
+ *
+ * - line: The line number in the generated source, or null.
+ * - column: The column number in the generated source, or null.
+ */
+ SourceMapConsumer.prototype.generatedPositionFor =
+ function SourceMapConsumer_generatedPositionFor(aArgs) {
+ var needle = {
+ source: util.getArg(aArgs, 'source'),
+ originalLine: util.getArg(aArgs, 'line'),
+ originalColumn: util.getArg(aArgs, 'column')
+ };
+
+ if (this.sourceRoot) {
+ needle.source = util.relative(this.sourceRoot, needle.source);
+ }
+
+ var mapping = this._findMapping(needle,
+ this._originalMappings,
+ "originalLine",
+ "originalColumn",
+ util.compareByOriginalPositions);
+
+ if (mapping) {
+ return {
+ line: util.getArg(mapping, 'generatedLine', null),
+ column: util.getArg(mapping, 'generatedColumn', null)
+ };
+ }
+
+ return {
+ line: null,
+ column: null
+ };
+ };
+
+ SourceMapConsumer.GENERATED_ORDER = 1;
+ SourceMapConsumer.ORIGINAL_ORDER = 2;
+
+ /**
+ * Iterate over each mapping between an original source/line/column and a
+ * generated line/column in this source map.
+ *
+ * @param Function aCallback
+ * The function that is called with each mapping.
+ * @param Object aContext
+ * Optional. If specified, this object will be the value of `this` every
+ * time that `aCallback` is called.
+ * @param aOrder
+ * Either `SourceMapConsumer.GENERATED_ORDER` or
+ * `SourceMapConsumer.ORIGINAL_ORDER`. Specifies whether you want to
+ * iterate over the mappings sorted by the generated file's line/column
+ * order or the original's source/line/column order, respectively. Defaults to
+ * `SourceMapConsumer.GENERATED_ORDER`.
+ */
+ SourceMapConsumer.prototype.eachMapping =
+ function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
+ var context = aContext || null;
+ var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
+
+ var mappings;
+ switch (order) {
+ case SourceMapConsumer.GENERATED_ORDER:
+ mappings = this._generatedMappings;
+ break;
+ case SourceMapConsumer.ORIGINAL_ORDER:
+ mappings = this._originalMappings;
+ break;
+ default:
+ throw new Error("Unknown order of iteration.");
+ }
+
+ var sourceRoot = this.sourceRoot;
+ mappings.map(function (mapping) {
+ var source = mapping.source;
+ if (source && sourceRoot) {
+ source = util.join(sourceRoot, source);
+ }
+ return {
+ source: source,
+ generatedLine: mapping.generatedLine,
+ generatedColumn: mapping.generatedColumn,
+ originalLine: mapping.originalLine,
+ originalColumn: mapping.originalColumn,
+ name: mapping.name
+ };
+ }).forEach(aCallback, context);
+ };
+
+ exports.SourceMapConsumer = SourceMapConsumer;
+
+});
+
+},{"./array-set":12,"./base64-vlq":13,"./binary-search":15,"./util":19,"amdefine":20}],17:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var base64VLQ = _dereq_('./base64-vlq');
+ var util = _dereq_('./util');
+ var ArraySet = _dereq_('./array-set').ArraySet;
+
+ /**
+ * An instance of the SourceMapGenerator represents a source map which is
+ * being built incrementally. To create a new one, you must pass an object
+ * with the following properties:
+ *
+ * - file: The filename of the generated source.
+ * - sourceRoot: An optional root for all URLs in this source map.
+ */
+ function SourceMapGenerator(aArgs) {
+ this._file = util.getArg(aArgs, 'file');
+ this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
+ this._sources = new ArraySet();
+ this._names = new ArraySet();
+ this._mappings = [];
+ this._sourcesContents = null;
+ }
+
+ SourceMapGenerator.prototype._version = 3;
+
+ /**
+ * Creates a new SourceMapGenerator based on a SourceMapConsumer
+ *
+ * @param aSourceMapConsumer The SourceMap.
+ */
+ SourceMapGenerator.fromSourceMap =
+ function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
+ var sourceRoot = aSourceMapConsumer.sourceRoot;
+ var generator = new SourceMapGenerator({
+ file: aSourceMapConsumer.file,
+ sourceRoot: sourceRoot
+ });
+ aSourceMapConsumer.eachMapping(function (mapping) {
+ var newMapping = {
+ generated: {
+ line: mapping.generatedLine,
+ column: mapping.generatedColumn
+ }
+ };
+
+ if (mapping.source) {
+ newMapping.source = mapping.source;
+ if (sourceRoot) {
+ newMapping.source = util.relative(sourceRoot, newMapping.source);
+ }
+
+ newMapping.original = {
+ line: mapping.originalLine,
+ column: mapping.originalColumn
+ };
+
+ if (mapping.name) {
+ newMapping.name = mapping.name;
+ }
+ }
+
+ generator.addMapping(newMapping);
+ });
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content) {
+ generator.setSourceContent(sourceFile, content);
+ }
+ });
+ return generator;
+ };
+
+ /**
+ * Add a single mapping from original source line and column to the generated
+ * source's line and column for this source map being created. The mapping
+ * object should have the following properties:
+ *
+ * - generated: An object with the generated line and column positions.
+ * - original: An object with the original line and column positions.
+ * - source: The original source file (relative to the sourceRoot).
+ * - name: An optional original token name for this mapping.
+ */
+ SourceMapGenerator.prototype.addMapping =
+ function SourceMapGenerator_addMapping(aArgs) {
+ var generated = util.getArg(aArgs, 'generated');
+ var original = util.getArg(aArgs, 'original', null);
+ var source = util.getArg(aArgs, 'source', null);
+ var name = util.getArg(aArgs, 'name', null);
+
+ this._validateMapping(generated, original, source, name);
+
+ if (source && !this._sources.has(source)) {
+ this._sources.add(source);
+ }
+
+ if (name && !this._names.has(name)) {
+ this._names.add(name);
+ }
+
+ this._mappings.push({
+ generatedLine: generated.line,
+ generatedColumn: generated.column,
+ originalLine: original != null && original.line,
+ originalColumn: original != null && original.column,
+ source: source,
+ name: name
+ });
+ };
+
+ /**
+ * Set the source content for a source file.
+ */
+ SourceMapGenerator.prototype.setSourceContent =
+ function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
+ var source = aSourceFile;
+ if (this._sourceRoot) {
+ source = util.relative(this._sourceRoot, source);
+ }
+
+ if (aSourceContent !== null) {
+ // Add the source content to the _sourcesContents map.
+ // Create a new _sourcesContents map if the property is null.
+ if (!this._sourcesContents) {
+ this._sourcesContents = {};
+ }
+ this._sourcesContents[util.toSetString(source)] = aSourceContent;
+ } else {
+ // Remove the source file from the _sourcesContents map.
+ // If the _sourcesContents map is empty, set the property to null.
+ delete this._sourcesContents[util.toSetString(source)];
+ if (Object.keys(this._sourcesContents).length === 0) {
+ this._sourcesContents = null;
+ }
+ }
+ };
+
+ /**
+ * Applies the mappings of a sub-source-map for a specific source file to the
+ * source map being generated. Each mapping to the supplied source file is
+ * rewritten using the supplied source map. Note: The resolution for the
+ * resulting mappings is the minimium of this map and the supplied map.
+ *
+ * @param aSourceMapConsumer The source map to be applied.
+ * @param aSourceFile Optional. The filename of the source file.
+ * If omitted, SourceMapConsumer's file property will be used.
+ */
+ SourceMapGenerator.prototype.applySourceMap =
+ function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {
+ // If aSourceFile is omitted, we will use the file property of the SourceMap
+ if (!aSourceFile) {
+ aSourceFile = aSourceMapConsumer.file;
+ }
+ var sourceRoot = this._sourceRoot;
+ // Make "aSourceFile" relative if an absolute Url is passed.
+ if (sourceRoot) {
+ aSourceFile = util.relative(sourceRoot, aSourceFile);
+ }
+ // Applying the SourceMap can add and remove items from the sources and
+ // the names array.
+ var newSources = new ArraySet();
+ var newNames = new ArraySet();
+
+ // Find mappings for the "aSourceFile"
+ this._mappings.forEach(function (mapping) {
+ if (mapping.source === aSourceFile && mapping.originalLine) {
+ // Check if it can be mapped by the source map, then update the mapping.
+ var original = aSourceMapConsumer.originalPositionFor({
+ line: mapping.originalLine,
+ column: mapping.originalColumn
+ });
+ if (original.source !== null) {
+ // Copy mapping
+ if (sourceRoot) {
+ mapping.source = util.relative(sourceRoot, original.source);
+ } else {
+ mapping.source = original.source;
+ }
+ mapping.originalLine = original.line;
+ mapping.originalColumn = original.column;
+ if (original.name !== null && mapping.name !== null) {
+ // Only use the identifier name if it's an identifier
+ // in both SourceMaps
+ mapping.name = original.name;
+ }
+ }
+ }
+
+ var source = mapping.source;
+ if (source && !newSources.has(source)) {
+ newSources.add(source);
+ }
+
+ var name = mapping.name;
+ if (name && !newNames.has(name)) {
+ newNames.add(name);
+ }
+
+ }, this);
+ this._sources = newSources;
+ this._names = newNames;
+
+ // Copy sourcesContents of applied map.
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content) {
+ if (sourceRoot) {
+ sourceFile = util.relative(sourceRoot, sourceFile);
+ }
+ this.setSourceContent(sourceFile, content);
+ }
+ }, this);
+ };
+
+ /**
+ * A mapping can have one of the three levels of data:
+ *
+ * 1. Just the generated position.
+ * 2. The Generated position, original position, and original source.
+ * 3. Generated and original position, original source, as well as a name
+ * token.
+ *
+ * To maintain consistency, we validate that any new mapping being added falls
+ * in to one of these categories.
+ */
+ SourceMapGenerator.prototype._validateMapping =
+ function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
+ aName) {
+ if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+ && aGenerated.line > 0 && aGenerated.column >= 0
+ && !aOriginal && !aSource && !aName) {
+ // Case 1.
+ return;
+ }
+ else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
+ && aOriginal && 'line' in aOriginal && 'column' in aOriginal
+ && aGenerated.line > 0 && aGenerated.column >= 0
+ && aOriginal.line > 0 && aOriginal.column >= 0
+ && aSource) {
+ // Cases 2 and 3.
+ return;
+ }
+ else {
+ throw new Error('Invalid mapping: ' + JSON.stringify({
+ generated: aGenerated,
+ source: aSource,
+ orginal: aOriginal,
+ name: aName
+ }));
+ }
+ };
+
+ /**
+ * Serialize the accumulated mappings in to the stream of base 64 VLQs
+ * specified by the source map format.
+ */
+ SourceMapGenerator.prototype._serializeMappings =
+ function SourceMapGenerator_serializeMappings() {
+ var previousGeneratedColumn = 0;
+ var previousGeneratedLine = 1;
+ var previousOriginalColumn = 0;
+ var previousOriginalLine = 0;
+ var previousName = 0;
+ var previousSource = 0;
+ var result = '';
+ var mapping;
+
+ // The mappings must be guaranteed to be in sorted order before we start
+ // serializing them or else the generated line numbers (which are defined
+ // via the ';' separators) will be all messed up. Note: it might be more
+ // performant to maintain the sorting as we insert them, rather than as we
+ // serialize them, but the big O is the same either way.
+ this._mappings.sort(util.compareByGeneratedPositions);
+
+ for (var i = 0, len = this._mappings.length; i < len; i++) {
+ mapping = this._mappings[i];
+
+ if (mapping.generatedLine !== previousGeneratedLine) {
+ previousGeneratedColumn = 0;
+ while (mapping.generatedLine !== previousGeneratedLine) {
+ result += ';';
+ previousGeneratedLine++;
+ }
+ }
+ else {
+ if (i > 0) {
+ if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) {
+ continue;
+ }
+ result += ',';
+ }
+ }
+
+ result += base64VLQ.encode(mapping.generatedColumn
+ - previousGeneratedColumn);
+ previousGeneratedColumn = mapping.generatedColumn;
+
+ if (mapping.source) {
+ result += base64VLQ.encode(this._sources.indexOf(mapping.source)
+ - previousSource);
+ previousSource = this._sources.indexOf(mapping.source);
+
+ // lines are stored 0-based in SourceMap spec version 3
+ result += base64VLQ.encode(mapping.originalLine - 1
+ - previousOriginalLine);
+ previousOriginalLine = mapping.originalLine - 1;
+
+ result += base64VLQ.encode(mapping.originalColumn
+ - previousOriginalColumn);
+ previousOriginalColumn = mapping.originalColumn;
+
+ if (mapping.name) {
+ result += base64VLQ.encode(this._names.indexOf(mapping.name)
+ - previousName);
+ previousName = this._names.indexOf(mapping.name);
+ }
+ }
+ }
+
+ return result;
+ };
+
+ SourceMapGenerator.prototype._generateSourcesContent =
+ function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
+ return aSources.map(function (source) {
+ if (!this._sourcesContents) {
+ return null;
+ }
+ if (aSourceRoot) {
+ source = util.relative(aSourceRoot, source);
+ }
+ var key = util.toSetString(source);
+ return Object.prototype.hasOwnProperty.call(this._sourcesContents,
+ key)
+ ? this._sourcesContents[key]
+ : null;
+ }, this);
+ };
+
+ /**
+ * Externalize the source map.
+ */
+ SourceMapGenerator.prototype.toJSON =
+ function SourceMapGenerator_toJSON() {
+ var map = {
+ version: this._version,
+ file: this._file,
+ sources: this._sources.toArray(),
+ names: this._names.toArray(),
+ mappings: this._serializeMappings()
+ };
+ if (this._sourceRoot) {
+ map.sourceRoot = this._sourceRoot;
+ }
+ if (this._sourcesContents) {
+ map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
+ }
+
+ return map;
+ };
+
+ /**
+ * Render the source map being generated to a string.
+ */
+ SourceMapGenerator.prototype.toString =
+ function SourceMapGenerator_toString() {
+ return JSON.stringify(this);
+ };
+
+ exports.SourceMapGenerator = SourceMapGenerator;
+
+});
+
+},{"./array-set":12,"./base64-vlq":13,"./util":19,"amdefine":20}],18:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ var SourceMapGenerator = _dereq_('./source-map-generator').SourceMapGenerator;
+ var util = _dereq_('./util');
+
+ /**
+ * SourceNodes provide a way to abstract over interpolating/concatenating
+ * snippets of generated JavaScript source code while maintaining the line and
+ * column information associated with the original source code.
+ *
+ * @param aLine The original line number.
+ * @param aColumn The original column number.
+ * @param aSource The original source's filename.
+ * @param aChunks Optional. An array of strings which are snippets of
+ * generated JS, or other SourceNodes.
+ * @param aName The original identifier.
+ */
+ function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
+ this.children = [];
+ this.sourceContents = {};
+ this.line = aLine === undefined ? null : aLine;
+ this.column = aColumn === undefined ? null : aColumn;
+ this.source = aSource === undefined ? null : aSource;
+ this.name = aName === undefined ? null : aName;
+ if (aChunks != null) this.add(aChunks);
+ }
+
+ /**
+ * Creates a SourceNode from generated code and a SourceMapConsumer.
+ *
+ * @param aGeneratedCode The generated code
+ * @param aSourceMapConsumer The SourceMap for the generated code
+ */
+ SourceNode.fromStringWithSourceMap =
+ function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {
+ // The SourceNode we want to fill with the generated code
+ // and the SourceMap
+ var node = new SourceNode();
+
+ // The generated code
+ // Processed fragments are removed from this array.
+ var remainingLines = aGeneratedCode.split('\n');
+
+ // We need to remember the position of "remainingLines"
+ var lastGeneratedLine = 1, lastGeneratedColumn = 0;
+
+ // The generate SourceNodes we need a code range.
+ // To extract it current and last mapping is used.
+ // Here we store the last mapping.
+ var lastMapping = null;
+
+ aSourceMapConsumer.eachMapping(function (mapping) {
+ if (lastMapping === null) {
+ // We add the generated code until the first mapping
+ // to the SourceNode without any mapping.
+ // Each line is added as separate string.
+ while (lastGeneratedLine < mapping.generatedLine) {
+ node.add(remainingLines.shift() + "\n");
+ lastGeneratedLine++;
+ }
+ if (lastGeneratedColumn < mapping.generatedColumn) {
+ var nextLine = remainingLines[0];
+ node.add(nextLine.substr(0, mapping.generatedColumn));
+ remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+ lastGeneratedColumn = mapping.generatedColumn;
+ }
+ } else {
+ // We add the code from "lastMapping" to "mapping":
+ // First check if there is a new line in between.
+ if (lastGeneratedLine < mapping.generatedLine) {
+ var code = "";
+ // Associate full lines with "lastMapping"
+ do {
+ code += remainingLines.shift() + "\n";
+ lastGeneratedLine++;
+ lastGeneratedColumn = 0;
+ } while (lastGeneratedLine < mapping.generatedLine);
+ // When we reached the correct line, we add code until we
+ // reach the correct column too.
+ if (lastGeneratedColumn < mapping.generatedColumn) {
+ var nextLine = remainingLines[0];
+ code += nextLine.substr(0, mapping.generatedColumn);
+ remainingLines[0] = nextLine.substr(mapping.generatedColumn);
+ lastGeneratedColumn = mapping.generatedColumn;
+ }
+ // Create the SourceNode.
+ addMappingWithCode(lastMapping, code);
+ } else {
+ // There is no new line in between.
+ // Associate the code between "lastGeneratedColumn" and
+ // "mapping.generatedColumn" with "lastMapping"
+ var nextLine = remainingLines[0];
+ var code = nextLine.substr(0, mapping.generatedColumn -
+ lastGeneratedColumn);
+ remainingLines[0] = nextLine.substr(mapping.generatedColumn -
+ lastGeneratedColumn);
+ lastGeneratedColumn = mapping.generatedColumn;
+ addMappingWithCode(lastMapping, code);
+ }
+ }
+ lastMapping = mapping;
+ }, this);
+ // We have processed all mappings.
+ // Associate the remaining code in the current line with "lastMapping"
+ // and add the remaining lines without any mapping
+ addMappingWithCode(lastMapping, remainingLines.join("\n"));
+
+ // Copy sourcesContent into SourceNode
+ aSourceMapConsumer.sources.forEach(function (sourceFile) {
+ var content = aSourceMapConsumer.sourceContentFor(sourceFile);
+ if (content) {
+ node.setSourceContent(sourceFile, content);
+ }
+ });
+
+ return node;
+
+ function addMappingWithCode(mapping, code) {
+ if (mapping === null || mapping.source === undefined) {
+ node.add(code);
+ } else {
+ node.add(new SourceNode(mapping.originalLine,
+ mapping.originalColumn,
+ mapping.source,
+ code,
+ mapping.name));
+ }
+ }
+ };
+
+ /**
+ * Add a chunk of generated JS to this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ * SourceNode, or an array where each member is one of those things.
+ */
+ SourceNode.prototype.add = function SourceNode_add(aChunk) {
+ if (Array.isArray(aChunk)) {
+ aChunk.forEach(function (chunk) {
+ this.add(chunk);
+ }, this);
+ }
+ else if (aChunk instanceof SourceNode || typeof aChunk === "string") {
+ if (aChunk) {
+ this.children.push(aChunk);
+ }
+ }
+ else {
+ throw new TypeError(
+ "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+ );
+ }
+ return this;
+ };
+
+ /**
+ * Add a chunk of generated JS to the beginning of this source node.
+ *
+ * @param aChunk A string snippet of generated JS code, another instance of
+ * SourceNode, or an array where each member is one of those things.
+ */
+ SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
+ if (Array.isArray(aChunk)) {
+ for (var i = aChunk.length-1; i >= 0; i--) {
+ this.prepend(aChunk[i]);
+ }
+ }
+ else if (aChunk instanceof SourceNode || typeof aChunk === "string") {
+ this.children.unshift(aChunk);
+ }
+ else {
+ throw new TypeError(
+ "Expected a SourceNode, string, or an array of SourceNodes and strings. Got " + aChunk
+ );
+ }
+ return this;
+ };
+
+ /**
+ * Walk over the tree of JS snippets in this node and its children. The
+ * walking function is called once for each snippet of JS and is passed that
+ * snippet and the its original associated source's line/column location.
+ *
+ * @param aFn The traversal function.
+ */
+ SourceNode.prototype.walk = function SourceNode_walk(aFn) {
+ var chunk;
+ for (var i = 0, len = this.children.length; i < len; i++) {
+ chunk = this.children[i];
+ if (chunk instanceof SourceNode) {
+ chunk.walk(aFn);
+ }
+ else {
+ if (chunk !== '') {
+ aFn(chunk, { source: this.source,
+ line: this.line,
+ column: this.column,
+ name: this.name });
+ }
+ }
+ }
+ };
+
+ /**
+ * Like `String.prototype.join` except for SourceNodes. Inserts `aStr` between
+ * each of `this.children`.
+ *
+ * @param aSep The separator.
+ */
+ SourceNode.prototype.join = function SourceNode_join(aSep) {
+ var newChildren;
+ var i;
+ var len = this.children.length;
+ if (len > 0) {
+ newChildren = [];
+ for (i = 0; i < len-1; i++) {
+ newChildren.push(this.children[i]);
+ newChildren.push(aSep);
+ }
+ newChildren.push(this.children[i]);
+ this.children = newChildren;
+ }
+ return this;
+ };
+
+ /**
+ * Call String.prototype.replace on the very right-most source snippet. Useful
+ * for trimming whitespace from the end of a source node, etc.
+ *
+ * @param aPattern The pattern to replace.
+ * @param aReplacement The thing to replace the pattern with.
+ */
+ SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
+ var lastChild = this.children[this.children.length - 1];
+ if (lastChild instanceof SourceNode) {
+ lastChild.replaceRight(aPattern, aReplacement);
+ }
+ else if (typeof lastChild === 'string') {
+ this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
+ }
+ else {
+ this.children.push(''.replace(aPattern, aReplacement));
+ }
+ return this;
+ };
+
+ /**
+ * Set the source content for a source file. This will be added to the SourceMapGenerator
+ * in the sourcesContent field.
+ *
+ * @param aSourceFile The filename of the source file
+ * @param aSourceContent The content of the source file
+ */
+ SourceNode.prototype.setSourceContent =
+ function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
+ this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
+ };
+
+ /**
+ * Walk over the tree of SourceNodes. The walking function is called for each
+ * source file content and is passed the filename and source content.
+ *
+ * @param aFn The traversal function.
+ */
+ SourceNode.prototype.walkSourceContents =
+ function SourceNode_walkSourceContents(aFn) {
+ for (var i = 0, len = this.children.length; i < len; i++) {
+ if (this.children[i] instanceof SourceNode) {
+ this.children[i].walkSourceContents(aFn);
+ }
+ }
+
+ var sources = Object.keys(this.sourceContents);
+ for (var i = 0, len = sources.length; i < len; i++) {
+ aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
+ }
+ };
+
+ /**
+ * Return the string representation of this source node. Walks over the tree
+ * and concatenates all the various snippets together to one string.
+ */
+ SourceNode.prototype.toString = function SourceNode_toString() {
+ var str = "";
+ this.walk(function (chunk) {
+ str += chunk;
+ });
+ return str;
+ };
+
+ /**
+ * Returns the string representation of this source node along with a source
+ * map.
+ */
+ SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
+ var generated = {
+ code: "",
+ line: 1,
+ column: 0
+ };
+ var map = new SourceMapGenerator(aArgs);
+ var sourceMappingActive = false;
+ var lastOriginalSource = null;
+ var lastOriginalLine = null;
+ var lastOriginalColumn = null;
+ var lastOriginalName = null;
+ this.walk(function (chunk, original) {
+ generated.code += chunk;
+ if (original.source !== null
+ && original.line !== null
+ && original.column !== null) {
+ if(lastOriginalSource !== original.source
+ || lastOriginalLine !== original.line
+ || lastOriginalColumn !== original.column
+ || lastOriginalName !== original.name) {
+ map.addMapping({
+ source: original.source,
+ original: {
+ line: original.line,
+ column: original.column
+ },
+ generated: {
+ line: generated.line,
+ column: generated.column
+ },
+ name: original.name
+ });
+ }
+ lastOriginalSource = original.source;
+ lastOriginalLine = original.line;
+ lastOriginalColumn = original.column;
+ lastOriginalName = original.name;
+ sourceMappingActive = true;
+ } else if (sourceMappingActive) {
+ map.addMapping({
+ generated: {
+ line: generated.line,
+ column: generated.column
+ }
+ });
+ lastOriginalSource = null;
+ sourceMappingActive = false;
+ }
+ chunk.split('').forEach(function (ch) {
+ if (ch === '\n') {
+ generated.line++;
+ generated.column = 0;
+ } else {
+ generated.column++;
+ }
+ });
+ });
+ this.walkSourceContents(function (sourceFile, sourceContent) {
+ map.setSourceContent(sourceFile, sourceContent);
+ });
+
+ return { code: generated.code, map: map };
+ };
+
+ exports.SourceNode = SourceNode;
+
+});
+
+},{"./source-map-generator":17,"./util":19,"amdefine":20}],19:[function(_dereq_,module,exports){
+/* -*- Mode: js; js-indent-level: 2; -*- */
+/*
+ * Copyright 2011 Mozilla Foundation and contributors
+ * Licensed under the New BSD license. See LICENSE or:
+ * http://opensource.org/licenses/BSD-3-Clause
+ */
+if (typeof define !== 'function') {
+ var define = _dereq_('amdefine')(module, _dereq_);
+}
+define(function (_dereq_, exports, module) {
+
+ /**
+ * This is a helper function for getting values from parameter/options
+ * objects.
+ *
+ * @param args The object we are extracting values from
+ * @param name The name of the property we are getting.
+ * @param defaultValue An optional value to return if the property is missing
+ * from the object. If this is not specified and the property is missing, an
+ * error will be thrown.
+ */
+ function getArg(aArgs, aName, aDefaultValue) {
+ if (aName in aArgs) {
+ return aArgs[aName];
+ } else if (arguments.length === 3) {
+ return aDefaultValue;
+ } else {
+ throw new Error('"' + aName + '" is a required argument.');
+ }
+ }
+ exports.getArg = getArg;
+
+ var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/;
+ var dataUrlRegexp = /^data:.+\,.+/;
+
+ function urlParse(aUrl) {
+ var match = aUrl.match(urlRegexp);
+ if (!match) {
+ return null;
+ }
+ return {
+ scheme: match[1],
+ auth: match[3],
+ host: match[4],
+ port: match[6],
+ path: match[7]
+ };
+ }
+ exports.urlParse = urlParse;
+
+ function urlGenerate(aParsedUrl) {
+ var url = aParsedUrl.scheme + "://";
+ if (aParsedUrl.auth) {
+ url += aParsedUrl.auth + "@"
+ }
+ if (aParsedUrl.host) {
+ url += aParsedUrl.host;
+ }
+ if (aParsedUrl.port) {
+ url += ":" + aParsedUrl.port
+ }
+ if (aParsedUrl.path) {
+ url += aParsedUrl.path;
+ }
+ return url;
+ }
+ exports.urlGenerate = urlGenerate;
+
+ function join(aRoot, aPath) {
+ var url;
+
+ if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) {
+ return aPath;
+ }
+
+ if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {
+ url.path = aPath;
+ return urlGenerate(url);
+ }
+
+ return aRoot.replace(/\/$/, '') + '/' + aPath;
+ }
+ exports.join = join;
+
+ /**
+ * Because behavior goes wacky when you set `__proto__` on objects, we
+ * have to prefix all the strings in our set with an arbitrary character.
+ *
+ * See https://github.com/mozilla/source-map/pull/31 and
+ * https://github.com/mozilla/source-map/issues/30
+ *
+ * @param String aStr
+ */
+ function toSetString(aStr) {
+ return '$' + aStr;
+ }
+ exports.toSetString = toSetString;
+
+ function fromSetString(aStr) {
+ return aStr.substr(1);
+ }
+ exports.fromSetString = fromSetString;
+
+ function relative(aRoot, aPath) {
+ aRoot = aRoot.replace(/\/$/, '');
+
+ var url = urlParse(aRoot);
+ if (aPath.charAt(0) == "/" && url && url.path == "/") {
+ return aPath.slice(1);
+ }
+
+ return aPath.indexOf(aRoot + '/') === 0
+ ? aPath.substr(aRoot.length + 1)
+ : aPath;
+ }
+ exports.relative = relative;
+
+ function strcmp(aStr1, aStr2) {
+ var s1 = aStr1 || "";
+ var s2 = aStr2 || "";
+ return (s1 > s2) - (s1 < s2);
+ }
+
+ /**
+ * Comparator between two mappings where the original positions are compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same original source/line/column, but different generated
+ * line and column the same. Useful when searching for a mapping with a
+ * stubbed out mapping.
+ */
+ function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
+ var cmp;
+
+ cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp || onlyCompareOriginal) {
+ return cmp;
+ }
+
+ cmp = strcmp(mappingA.name, mappingB.name);
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp) {
+ return cmp;
+ }
+
+ return mappingA.generatedColumn - mappingB.generatedColumn;
+ };
+ exports.compareByOriginalPositions = compareByOriginalPositions;
+
+ /**
+ * Comparator between two mappings where the generated positions are
+ * compared.
+ *
+ * Optionally pass in `true` as `onlyCompareGenerated` to consider two
+ * mappings with the same generated line and column, but different
+ * source/name/original line and column the same. Useful when searching for a
+ * mapping with a stubbed out mapping.
+ */
+ function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) {
+ var cmp;
+
+ cmp = mappingA.generatedLine - mappingB.generatedLine;
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.generatedColumn - mappingB.generatedColumn;
+ if (cmp || onlyCompareGenerated) {
+ return cmp;
+ }
+
+ cmp = strcmp(mappingA.source, mappingB.source);
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalLine - mappingB.originalLine;
+ if (cmp) {
+ return cmp;
+ }
+
+ cmp = mappingA.originalColumn - mappingB.originalColumn;
+ if (cmp) {
+ return cmp;
+ }
+
+ return strcmp(mappingA.name, mappingB.name);
+ };
+ exports.compareByGeneratedPositions = compareByGeneratedPositions;
+
+});
+
+},{"amdefine":20}],20:[function(_dereq_,module,exports){
+(function (process,__filename){
+/** vim: et:ts=4:sw=4:sts=4
+ * @license amdefine 0.1.0 Copyright (c) 2011, The Dojo Foundation All Rights Reserved.
+ * Available via the MIT or new BSD license.
+ * see: http://github.com/jrburke/amdefine for details
+ */
+
+/*jslint node: true */
+/*global module, process */
+'use strict';
+
+/**
+ * Creates a define for node.
+ * @param {Object} module the "module" object that is defined by Node for the
+ * current module.
+ * @param {Function} [requireFn]. Node's require function for the current module.
+ * It only needs to be passed in Node versions before 0.5, when module.require
+ * did not exist.
+ * @returns {Function} a define function that is usable for the current node
+ * module.
+ */
+function amdefine(module, requireFn) {
+ 'use strict';
+ var defineCache = {},
+ loaderCache = {},
+ alreadyCalled = false,
+ path = _dereq_('path'),
+ makeRequire, stringRequire;
+
+ /**
+ * Trims the . and .. from an array of path segments.
+ * It will keep a leading path segment if a .. will become
+ * the first path segment, to help with module name lookups,
+ * which act like paths, but can be remapped. But the end result,
+ * all paths that use this function should look normalized.
+ * NOTE: this method MODIFIES the input array.
+ * @param {Array} ary the array of path segments.
+ */
+ function trimDots(ary) {
+ var i, part;
+ for (i = 0; ary[i]; i+= 1) {
+ part = ary[i];
+ if (part === '.') {
+ ary.splice(i, 1);
+ i -= 1;
+ } else if (part === '..') {
+ if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
+ //End of the line. Keep at least one non-dot
+ //path segment at the front so it can be mapped
+ //correctly to disk. Otherwise, there is likely
+ //no path mapping for a path starting with '..'.
+ //This can still fail, but catches the most reasonable
+ //uses of ..
+ break;
+ } else if (i > 0) {
+ ary.splice(i - 1, 2);
+ i -= 2;
+ }
+ }
+ }
+ }
+
+ function normalize(name, baseName) {
+ var baseParts;
+
+ //Adjust any relative paths.
+ if (name && name.charAt(0) === '.') {
+ //If have a base name, try to normalize against it,
+ //otherwise, assume it is a top-level require that will
+ //be relative to baseUrl in the end.
+ if (baseName) {
+ baseParts = baseName.split('/');
+ baseParts = baseParts.slice(0, baseParts.length - 1);
+ baseParts = baseParts.concat(name.split('/'));
+ trimDots(baseParts);
+ name = baseParts.join('/');
+ }
+ }
+
+ return name;
+ }
+
+ /**
+ * Create the normalize() function passed to a loader plugin's
+ * normalize method.
+ */
+ function makeNormalize(relName) {
+ return function (name) {
+ return normalize(name, relName);
+ };
+ }
+
+ function makeLoad(id) {
+ function load(value) {
+ loaderCache[id] = value;
+ }
+
+ load.fromText = function (id, text) {
+ //This one is difficult because the text can/probably uses
+ //define, and any relative paths and requires should be relative
+ //to that id was it would be found on disk. But this would require
+ //bootstrapping a module/require fairly deeply from node core.
+ //Not sure how best to go about that yet.
+ throw new Error('amdefine does not implement load.fromText');
+ };
+
+ return load;
+ }
+
+ makeRequire = function (systemRequire, exports, module, relId) {
+ function amdRequire(deps, callback) {
+ if (typeof deps === 'string') {
+ //Synchronous, single module require('')
+ return stringRequire(systemRequire, exports, module, deps, relId);
+ } else {
+ //Array of dependencies with a callback.
+
+ //Convert the dependencies to modules.
+ deps = deps.map(function (depName) {
+ return stringRequire(systemRequire, exports, module, depName, relId);
+ });
+
+ //Wait for next tick to call back the require call.
+ process.nextTick(function () {
+ callback.apply(null, deps);
+ });
+ }
+ }
+
+ amdRequire.toUrl = function (filePath) {
+ if (filePath.indexOf('.') === 0) {
+ return normalize(filePath, path.dirname(module.filename));
+ } else {
+ return filePath;
+ }
+ };
+
+ return amdRequire;
+ };
+
+ //Favor explicit value, passed in if the module wants to support Node 0.4.
+ requireFn = requireFn || function req() {
+ return module.require.apply(module, arguments);
+ };
+
+ function runFactory(id, deps, factory) {
+ var r, e, m, result;
+
+ if (id) {
+ e = loaderCache[id] = {};
+ m = {
+ id: id,
+ uri: __filename,
+ exports: e
+ };
+ r = makeRequire(requireFn, e, m, id);
+ } else {
+ //Only support one define call per file
+ if (alreadyCalled) {
+ throw new Error('amdefine with no module ID cannot be called more than once per file.');
+ }
+ alreadyCalled = true;
+
+ //Use the real variables from node
+ //Use module.exports for exports, since
+ //the exports in here is amdefine exports.
+ e = module.exports;
+ m = module;
+ r = makeRequire(requireFn, e, m, module.id);
+ }
+
+ //If there are dependencies, they are strings, so need
+ //to convert them to dependency values.
+ if (deps) {
+ deps = deps.map(function (depName) {
+ return r(depName);
+ });
+ }
+
+ //Call the factory with the right dependencies.
+ if (typeof factory === 'function') {
+ result = factory.apply(m.exports, deps);
+ } else {
+ result = factory;
+ }
+
+ if (result !== undefined) {
+ m.exports = result;
+ if (id) {
+ loaderCache[id] = m.exports;
+ }
+ }
+ }
+
+ stringRequire = function (systemRequire, exports, module, id, relId) {
+ //Split the ID by a ! so that
+ var index = id.indexOf('!'),
+ originalId = id,
+ prefix, plugin;
+
+ if (index === -1) {
+ id = normalize(id, relId);
+
+ //Straight module lookup. If it is one of the special dependencies,
+ //deal with it, otherwise, delegate to node.
+ if (id === 'require') {
+ return makeRequire(systemRequire, exports, module, relId);
+ } else if (id === 'exports') {
+ return exports;
+ } else if (id === 'module') {
+ return module;
+ } else if (loaderCache.hasOwnProperty(id)) {
+ return loaderCache[id];
+ } else if (defineCache[id]) {
+ runFactory.apply(null, defineCache[id]);
+ return loaderCache[id];
+ } else {
+ if(systemRequire) {
+ return systemRequire(originalId);
+ } else {
+ throw new Error('No module with ID: ' + id);
+ }
+ }
+ } else {
+ //There is a plugin in play.
+ prefix = id.substring(0, index);
+ id = id.substring(index + 1, id.length);
+
+ plugin = stringRequire(systemRequire, exports, module, prefix, relId);
+
+ if (plugin.normalize) {
+ id = plugin.normalize(id, makeNormalize(relId));
+ } else {
+ //Normalize the ID normally.
+ id = normalize(id, relId);
+ }
+
+ if (loaderCache[id]) {
+ return loaderCache[id];
+ } else {
+ plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
+
+ return loaderCache[id];
+ }
+ }
+ };
+
+ //Create a define function specific to the module asking for amdefine.
+ function define(id, deps, factory) {
+ if (Array.isArray(id)) {
+ factory = deps;
+ deps = id;
+ id = undefined;
+ } else if (typeof id !== 'string') {
+ factory = id;
+ id = deps = undefined;
+ }
+
+ if (deps && !Array.isArray(deps)) {
+ factory = deps;
+ deps = undefined;
+ }
+
+ if (!deps) {
+ deps = ['require', 'exports', 'module'];
+ }
+
+ //Set up properties for this module. If an ID, then use
+ //internal cache. If no ID, then use the external variables
+ //for this node module.
+ if (id) {
+ //Put the module in deep freeze until there is a
+ //require call for it.
+ defineCache[id] = [id, deps, factory];
+ } else {
+ runFactory(id, deps, factory);
+ }
+ }
+
+ //define.require, which has access to all the values in the
+ //cache. Useful for AMD modules that all have IDs in the file,
+ //but need to finally export a value to node based on one of those
+ //IDs.
+ define.require = function (id) {
+ if (loaderCache[id]) {
+ return loaderCache[id];
+ }
+
+ if (defineCache[id]) {
+ runFactory.apply(null, defineCache[id]);
+ return loaderCache[id];
+ }
+ };
+
+ define.amd = {};
+
+ return define;
+}
+
+module.exports = amdefine;
+
+}).call(this,_dereq_('_process'),"/node_modules/jstransform/node_modules/source-map/node_modules/amdefine/amdefine.js")
+},{"_process":8,"path":7}],21:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+var docblockRe = /^\s*(\/\*\*(.|\r?\n)*?\*\/)/;
+var ltrimRe = /^\s*/;
+/**
+ * @param {String} contents
+ * @return {String}
+ */
+function extract(contents) {
+ var match = contents.match(docblockRe);
+ if (match) {
+ return match[0].replace(ltrimRe, '') || '';
+ }
+ return '';
+}
+
+
+var commentStartRe = /^\/\*\*?/;
+var commentEndRe = /\*+\/$/;
+var wsRe = /[\t ]+/g;
+var stringStartRe = /(\r?\n|^) *\*/g;
+var multilineRe = /(?:^|\r?\n) *(@[^\r\n]*?) *\r?\n *([^@\r\n\s][^@\r\n]+?) *\r?\n/g;
+var propertyRe = /(?:^|\r?\n) *@(\S+) *([^\r\n]*)/g;
+
+/**
+ * @param {String} contents
+ * @return {Array}
+ */
+function parse(docblock) {
+ docblock = docblock
+ .replace(commentStartRe, '')
+ .replace(commentEndRe, '')
+ .replace(wsRe, ' ')
+ .replace(stringStartRe, '$1');
+
+ // Normalize multi-line directives
+ var prev = '';
+ while (prev != docblock) {
+ prev = docblock;
+ docblock = docblock.replace(multilineRe, "\n$1 $2\n");
+ }
+ docblock = docblock.trim();
+
+ var result = [];
+ var match;
+ while (match = propertyRe.exec(docblock)) {
+ result.push([match[1], match[2]]);
+ }
+
+ return result;
+}
+
+/**
+ * Same as parse but returns an object of prop: value instead of array of paris
+ * If a property appers more than once the last one will be returned
+ *
+ * @param {String} contents
+ * @return {Object}
+ */
+function parseAsObject(docblock) {
+ var pairs = parse(docblock);
+ var result = {};
+ for (var i = 0; i < pairs.length; i++) {
+ result[pairs[i][0]] = pairs[i][1];
+ }
+ return result;
+}
+
+
+exports.extract = extract;
+exports.parse = parse;
+exports.parseAsObject = parseAsObject;
+
+},{}],22:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/*jslint node: true*/
+"use strict";
+
+var esprima = _dereq_('esprima-fb');
+var utils = _dereq_('./utils');
+
+var getBoundaryNode = utils.getBoundaryNode;
+var declareIdentInScope = utils.declareIdentInLocalScope;
+var initScopeMetadata = utils.initScopeMetadata;
+var Syntax = esprima.Syntax;
+
+/**
+ * @param {object} node
+ * @param {object} parentNode
+ * @return {boolean}
+ */
+function _nodeIsClosureScopeBoundary(node, parentNode) {
+ if (node.type === Syntax.Program) {
+ return true;
+ }
+
+ var parentIsFunction =
+ parentNode.type === Syntax.FunctionDeclaration
+ || parentNode.type === Syntax.FunctionExpression
+ || parentNode.type === Syntax.ArrowFunctionExpression;
+
+ var parentIsCurlylessArrowFunc =
+ parentNode.type === Syntax.ArrowFunctionExpression
+ && node === parentNode.body;
+
+ return parentIsFunction
+ && (node.type === Syntax.BlockStatement || parentIsCurlylessArrowFunc);
+}
+
+function _nodeIsBlockScopeBoundary(node, parentNode) {
+ if (node.type === Syntax.Program) {
+ return false;
+ }
+
+ return node.type === Syntax.BlockStatement
+ && parentNode.type === Syntax.CatchClause;
+}
+
+/**
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function traverse(node, path, state) {
+ /*jshint -W004*/
+ // Create a scope stack entry if this is the first node we've encountered in
+ // its local scope
+ var startIndex = null;
+ var parentNode = path[0];
+ if (!Array.isArray(node) && state.localScope.parentNode !== parentNode) {
+ if (_nodeIsClosureScopeBoundary(node, parentNode)) {
+ var scopeIsStrict = state.scopeIsStrict;
+ if (!scopeIsStrict
+ && (node.type === Syntax.BlockStatement
+ || node.type === Syntax.Program)) {
+ scopeIsStrict =
+ node.body.length > 0
+ && node.body[0].type === Syntax.ExpressionStatement
+ && node.body[0].expression.type === Syntax.Literal
+ && node.body[0].expression.value === 'use strict';
+ }
+
+ if (node.type === Syntax.Program) {
+ startIndex = state.g.buffer.length;
+ state = utils.updateState(state, {
+ scopeIsStrict: scopeIsStrict
+ });
+ } else {
+ startIndex = state.g.buffer.length + 1;
+ state = utils.updateState(state, {
+ localScope: {
+ parentNode: parentNode,
+ parentScope: state.localScope,
+ identifiers: {},
+ tempVarIndex: 0,
+ tempVars: []
+ },
+ scopeIsStrict: scopeIsStrict
+ });
+
+ // All functions have an implicit 'arguments' object in scope
+ declareIdentInScope('arguments', initScopeMetadata(node), state);
+
+ // Include function arg identifiers in the scope boundaries of the
+ // function
+ if (parentNode.params.length > 0) {
+ var param;
+ var metadata = initScopeMetadata(parentNode, path.slice(1), path[0]);
+ for (var i = 0; i < parentNode.params.length; i++) {
+ param = parentNode.params[i];
+ if (param.type === Syntax.Identifier) {
+ declareIdentInScope(param.name, metadata, state);
+ }
+ }
+ }
+
+ // Include rest arg identifiers in the scope boundaries of their
+ // functions
+ if (parentNode.rest) {
+ var metadata = initScopeMetadata(
+ parentNode,
+ path.slice(1),
+ path[0]
+ );
+ declareIdentInScope(parentNode.rest.name, metadata, state);
+ }
+
+ // Named FunctionExpressions scope their name within the body block of
+ // themselves only
+ if (parentNode.type === Syntax.FunctionExpression && parentNode.id) {
+ var metaData =
+ initScopeMetadata(parentNode, path.parentNodeslice, parentNode);
+ declareIdentInScope(parentNode.id.name, metaData, state);
+ }
+ }
+
+ // Traverse and find all local identifiers in this closure first to
+ // account for function/variable declaration hoisting
+ collectClosureIdentsAndTraverse(node, path, state);
+ }
+
+ if (_nodeIsBlockScopeBoundary(node, parentNode)) {
+ startIndex = state.g.buffer.length;
+ state = utils.updateState(state, {
+ localScope: {
+ parentNode: parentNode,
+ parentScope: state.localScope,
+ identifiers: {},
+ tempVarIndex: 0,
+ tempVars: []
+ }
+ });
+
+ if (parentNode.type === Syntax.CatchClause) {
+ var metadata = initScopeMetadata(
+ parentNode,
+ path.slice(1),
+ parentNode
+ );
+ declareIdentInScope(parentNode.param.name, metadata, state);
+ }
+ collectBlockIdentsAndTraverse(node, path, state);
+ }
+ }
+
+ // Only catchup() before and after traversing a child node
+ function traverser(node, path, state) {
+ node.range && utils.catchup(node.range[0], state);
+ traverse(node, path, state);
+ node.range && utils.catchup(node.range[1], state);
+ }
+
+ utils.analyzeAndTraverse(walker, traverser, node, path, state);
+
+ // Inject temp variables into the scope.
+ if (startIndex !== null) {
+ utils.injectTempVarDeclarations(state, startIndex);
+ }
+}
+
+function collectClosureIdentsAndTraverse(node, path, state) {
+ utils.analyzeAndTraverse(
+ visitLocalClosureIdentifiers,
+ collectClosureIdentsAndTraverse,
+ node,
+ path,
+ state
+ );
+}
+
+function collectBlockIdentsAndTraverse(node, path, state) {
+ utils.analyzeAndTraverse(
+ visitLocalBlockIdentifiers,
+ collectBlockIdentsAndTraverse,
+ node,
+ path,
+ state
+ );
+}
+
+function visitLocalClosureIdentifiers(node, path, state) {
+ var metaData;
+ switch (node.type) {
+ case Syntax.ArrowFunctionExpression:
+ case Syntax.FunctionExpression:
+ // Function expressions don't get their names (if there is one) added to
+ // the closure scope they're defined in
+ return false;
+ case Syntax.ClassDeclaration:
+ case Syntax.ClassExpression:
+ case Syntax.FunctionDeclaration:
+ if (node.id) {
+ metaData = initScopeMetadata(getBoundaryNode(path), path.slice(), node);
+ declareIdentInScope(node.id.name, metaData, state);
+ }
+ return false;
+ case Syntax.VariableDeclarator:
+ // Variables have function-local scope
+ if (path[0].kind === 'var') {
+ metaData = initScopeMetadata(getBoundaryNode(path), path.slice(), node);
+ declareIdentInScope(node.id.name, metaData, state);
+ }
+ break;
+ }
+}
+
+function visitLocalBlockIdentifiers(node, path, state) {
+ // TODO: Support 'let' here...maybe...one day...or something...
+ if (node.type === Syntax.CatchClause) {
+ return false;
+ }
+}
+
+function walker(node, path, state) {
+ var visitors = state.g.visitors;
+ for (var i = 0; i < visitors.length; i++) {
+ if (visitors[i].test(node, path, state)) {
+ return visitors[i](traverse, node, path, state);
+ }
+ }
+}
+
+var _astCache = {};
+
+function getAstForSource(source, options) {
+ if (_astCache[source] && !options.disableAstCache) {
+ return _astCache[source];
+ }
+ var ast = esprima.parse(source, {
+ comment: true,
+ loc: true,
+ range: true,
+ sourceType: options.sourceType
+ });
+ if (!options.disableAstCache) {
+ _astCache[source] = ast;
+ }
+ return ast;
+}
+
+/**
+ * Applies all available transformations to the source
+ * @param {array} visitors
+ * @param {string} source
+ * @param {?object} options
+ * @return {object}
+ */
+function transform(visitors, source, options) {
+ options = options || {};
+ var ast;
+ try {
+ ast = getAstForSource(source, options);
+ } catch (e) {
+ e.message = 'Parse Error: ' + e.message;
+ throw e;
+ }
+ var state = utils.createState(source, ast, options);
+ state.g.visitors = visitors;
+
+ if (options.sourceMap) {
+ var SourceMapGenerator = _dereq_('source-map').SourceMapGenerator;
+ state.g.sourceMap = new SourceMapGenerator({file: options.filename || 'transformed.js'});
+ }
+
+ traverse(ast, [], state);
+ utils.catchup(source.length, state);
+
+ var ret = {code: state.g.buffer, extra: state.g.extra};
+ if (options.sourceMap) {
+ ret.sourceMap = state.g.sourceMap;
+ ret.sourceMapFilename = options.filename || 'source.js';
+ }
+ return ret;
+}
+
+exports.transform = transform;
+exports.Syntax = Syntax;
+
+},{"./utils":23,"esprima-fb":9,"source-map":11}],23:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/*jslint node: true*/
+var Syntax = _dereq_('esprima-fb').Syntax;
+var leadingIndentRegexp = /(^|\n)( {2}|\t)/g;
+var nonWhiteRegexp = /(\S)/g;
+
+/**
+ * A `state` object represents the state of the parser. It has "local" and
+ * "global" parts. Global contains parser position, source, etc. Local contains
+ * scope based properties like current class name. State should contain all the
+ * info required for transformation. It's the only mandatory object that is
+ * being passed to every function in transform chain.
+ *
+ * @param {string} source
+ * @param {object} transformOptions
+ * @return {object}
+ */
+function createState(source, rootNode, transformOptions) {
+ return {
+ /**
+ * A tree representing the current local scope (and its lexical scope chain)
+ * Useful for tracking identifiers from parent scopes, etc.
+ * @type {Object}
+ */
+ localScope: {
+ parentNode: rootNode,
+ parentScope: null,
+ identifiers: {},
+ tempVarIndex: 0,
+ tempVars: []
+ },
+ /**
+ * The name (and, if applicable, expression) of the super class
+ * @type {Object}
+ */
+ superClass: null,
+ /**
+ * The namespace to use when munging identifiers
+ * @type {String}
+ */
+ mungeNamespace: '',
+ /**
+ * Ref to the node for the current MethodDefinition
+ * @type {Object}
+ */
+ methodNode: null,
+ /**
+ * Ref to the node for the FunctionExpression of the enclosing
+ * MethodDefinition
+ * @type {Object}
+ */
+ methodFuncNode: null,
+ /**
+ * Name of the enclosing class
+ * @type {String}
+ */
+ className: null,
+ /**
+ * Whether we're currently within a `strict` scope
+ * @type {Bool}
+ */
+ scopeIsStrict: null,
+ /**
+ * Indentation offset
+ * @type {Number}
+ */
+ indentBy: 0,
+ /**
+ * Global state (not affected by updateState)
+ * @type {Object}
+ */
+ g: {
+ /**
+ * A set of general options that transformations can consider while doing
+ * a transformation:
+ *
+ * - minify
+ * Specifies that transformation steps should do their best to minify
+ * the output source when possible. This is useful for places where
+ * minification optimizations are possible with higher-level context
+ * info than what jsxmin can provide.
+ *
+ * For example, the ES6 class transform will minify munged private
+ * variables if this flag is set.
+ */
+ opts: transformOptions,
+ /**
+ * Current position in the source code
+ * @type {Number}
+ */
+ position: 0,
+ /**
+ * Auxiliary data to be returned by transforms
+ * @type {Object}
+ */
+ extra: {},
+ /**
+ * Buffer containing the result
+ * @type {String}
+ */
+ buffer: '',
+ /**
+ * Source that is being transformed
+ * @type {String}
+ */
+ source: source,
+
+ /**
+ * Cached parsed docblock (see getDocblock)
+ * @type {object}
+ */
+ docblock: null,
+
+ /**
+ * Whether the thing was used
+ * @type {Boolean}
+ */
+ tagNamespaceUsed: false,
+
+ /**
+ * If using bolt xjs transformation
+ * @type {Boolean}
+ */
+ isBolt: undefined,
+
+ /**
+ * Whether to record source map (expensive) or not
+ * @type {SourceMapGenerator|null}
+ */
+ sourceMap: null,
+
+ /**
+ * Filename of the file being processed. Will be returned as a source
+ * attribute in the source map
+ */
+ sourceMapFilename: 'source.js',
+
+ /**
+ * Only when source map is used: last line in the source for which
+ * source map was generated
+ * @type {Number}
+ */
+ sourceLine: 1,
+
+ /**
+ * Only when source map is used: last line in the buffer for which
+ * source map was generated
+ * @type {Number}
+ */
+ bufferLine: 1,
+
+ /**
+ * The top-level Program AST for the original file.
+ */
+ originalProgramAST: null,
+
+ sourceColumn: 0,
+ bufferColumn: 0
+ }
+ };
+}
+
+/**
+ * Updates a copy of a given state with "update" and returns an updated state.
+ *
+ * @param {object} state
+ * @param {object} update
+ * @return {object}
+ */
+function updateState(state, update) {
+ var ret = Object.create(state);
+ Object.keys(update).forEach(function(updatedKey) {
+ ret[updatedKey] = update[updatedKey];
+ });
+ return ret;
+}
+
+/**
+ * Given a state fill the resulting buffer from the original source up to
+ * the end
+ *
+ * @param {number} end
+ * @param {object} state
+ * @param {?function} contentTransformer Optional callback to transform newly
+ * added content.
+ */
+function catchup(end, state, contentTransformer) {
+ if (end < state.g.position) {
+ // cannot move backwards
+ return;
+ }
+ var source = state.g.source.substring(state.g.position, end);
+ var transformed = updateIndent(source, state);
+ if (state.g.sourceMap && transformed) {
+ // record where we are
+ state.g.sourceMap.addMapping({
+ generated: { line: state.g.bufferLine, column: state.g.bufferColumn },
+ original: { line: state.g.sourceLine, column: state.g.sourceColumn },
+ source: state.g.sourceMapFilename
+ });
+
+ // record line breaks in transformed source
+ var sourceLines = source.split('\n');
+ var transformedLines = transformed.split('\n');
+ // Add line break mappings between last known mapping and the end of the
+ // added piece. So for the code piece
+ // (foo, bar);
+ // > var x = 2;
+ // > var b = 3;
+ // var c =
+ // only add lines marked with ">": 2, 3.
+ for (var i = 1; i < sourceLines.length - 1; i++) {
+ state.g.sourceMap.addMapping({
+ generated: { line: state.g.bufferLine, column: 0 },
+ original: { line: state.g.sourceLine, column: 0 },
+ source: state.g.sourceMapFilename
+ });
+ state.g.sourceLine++;
+ state.g.bufferLine++;
+ }
+ // offset for the last piece
+ if (sourceLines.length > 1) {
+ state.g.sourceLine++;
+ state.g.bufferLine++;
+ state.g.sourceColumn = 0;
+ state.g.bufferColumn = 0;
+ }
+ state.g.sourceColumn += sourceLines[sourceLines.length - 1].length;
+ state.g.bufferColumn +=
+ transformedLines[transformedLines.length - 1].length;
+ }
+ state.g.buffer +=
+ contentTransformer ? contentTransformer(transformed) : transformed;
+ state.g.position = end;
+}
+
+/**
+ * Returns original source for an AST node.
+ * @param {object} node
+ * @param {object} state
+ * @return {string}
+ */
+function getNodeSourceText(node, state) {
+ return state.g.source.substring(node.range[0], node.range[1]);
+}
+
+function _replaceNonWhite(value) {
+ return value.replace(nonWhiteRegexp, ' ');
+}
+
+/**
+ * Removes all non-whitespace characters
+ */
+function _stripNonWhite(value) {
+ return value.replace(nonWhiteRegexp, '');
+}
+
+/**
+ * Finds the position of the next instance of the specified syntactic char in
+ * the pending source.
+ *
+ * NOTE: This will skip instances of the specified char if they sit inside a
+ * comment body.
+ *
+ * NOTE: This function also assumes that the buffer's current position is not
+ * already within a comment or a string. This is rarely the case since all
+ * of the buffer-advancement utility methods tend to be used on syntactic
+ * nodes' range values -- but it's a small gotcha that's worth mentioning.
+ */
+function getNextSyntacticCharOffset(char, state) {
+ var pendingSource = state.g.source.substring(state.g.position);
+ var pendingSourceLines = pendingSource.split('\n');
+
+ var charOffset = 0;
+ var line;
+ var withinBlockComment = false;
+ var withinString = false;
+ lineLoop: while ((line = pendingSourceLines.shift()) !== undefined) {
+ var lineEndPos = charOffset + line.length;
+ charLoop: for (; charOffset < lineEndPos; charOffset++) {
+ var currChar = pendingSource[charOffset];
+ if (currChar === '"' || currChar === '\'') {
+ withinString = !withinString;
+ continue charLoop;
+ } else if (withinString) {
+ continue charLoop;
+ } else if (charOffset + 1 < lineEndPos) {
+ var nextTwoChars = currChar + line[charOffset + 1];
+ if (nextTwoChars === '//') {
+ charOffset = lineEndPos + 1;
+ continue lineLoop;
+ } else if (nextTwoChars === '/*') {
+ withinBlockComment = true;
+ charOffset += 1;
+ continue charLoop;
+ } else if (nextTwoChars === '*/') {
+ withinBlockComment = false;
+ charOffset += 1;
+ continue charLoop;
+ }
+ }
+
+ if (!withinBlockComment && currChar === char) {
+ return charOffset + state.g.position;
+ }
+ }
+
+ // Account for '\n'
+ charOffset++;
+ withinString = false;
+ }
+
+ throw new Error('`' + char + '` not found!');
+}
+
+/**
+ * Catches up as `catchup` but replaces non-whitespace chars with spaces.
+ */
+function catchupWhiteOut(end, state) {
+ catchup(end, state, _replaceNonWhite);
+}
+
+/**
+ * Catches up as `catchup` but removes all non-whitespace characters.
+ */
+function catchupWhiteSpace(end, state) {
+ catchup(end, state, _stripNonWhite);
+}
+
+/**
+ * Removes all non-newline characters
+ */
+var reNonNewline = /[^\n]/g;
+function stripNonNewline(value) {
+ return value.replace(reNonNewline, function() {
+ return '';
+ });
+}
+
+/**
+ * Catches up as `catchup` but removes all non-newline characters.
+ *
+ * Equivalent to appending as many newlines as there are in the original source
+ * between the current position and `end`.
+ */
+function catchupNewlines(end, state) {
+ catchup(end, state, stripNonNewline);
+}
+
+
+/**
+ * Same as catchup but does not touch the buffer
+ *
+ * @param {number} end
+ * @param {object} state
+ */
+function move(end, state) {
+ // move the internal cursors
+ if (state.g.sourceMap) {
+ if (end < state.g.position) {
+ state.g.position = 0;
+ state.g.sourceLine = 1;
+ state.g.sourceColumn = 0;
+ }
+
+ var source = state.g.source.substring(state.g.position, end);
+ var sourceLines = source.split('\n');
+ if (sourceLines.length > 1) {
+ state.g.sourceLine += sourceLines.length - 1;
+ state.g.sourceColumn = 0;
+ }
+ state.g.sourceColumn += sourceLines[sourceLines.length - 1].length;
+ }
+ state.g.position = end;
+}
+
+/**
+ * Appends a string of text to the buffer
+ *
+ * @param {string} str
+ * @param {object} state
+ */
+function append(str, state) {
+ if (state.g.sourceMap && str) {
+ state.g.sourceMap.addMapping({
+ generated: { line: state.g.bufferLine, column: state.g.bufferColumn },
+ original: { line: state.g.sourceLine, column: state.g.sourceColumn },
+ source: state.g.sourceMapFilename
+ });
+ var transformedLines = str.split('\n');
+ if (transformedLines.length > 1) {
+ state.g.bufferLine += transformedLines.length - 1;
+ state.g.bufferColumn = 0;
+ }
+ state.g.bufferColumn +=
+ transformedLines[transformedLines.length - 1].length;
+ }
+ state.g.buffer += str;
+}
+
+/**
+ * Update indent using state.indentBy property. Indent is measured in
+ * double spaces. Updates a single line only.
+ *
+ * @param {string} str
+ * @param {object} state
+ * @return {string}
+ */
+function updateIndent(str, state) {
+ /*jshint -W004*/
+ var indentBy = state.indentBy;
+ if (indentBy < 0) {
+ for (var i = 0; i < -indentBy; i++) {
+ str = str.replace(leadingIndentRegexp, '$1');
+ }
+ } else {
+ for (var i = 0; i < indentBy; i++) {
+ str = str.replace(leadingIndentRegexp, '$1$2$2');
+ }
+ }
+ return str;
+}
+
+/**
+ * Calculates indent from the beginning of the line until "start" or the first
+ * character before start.
+ * @example
+ * " foo.bar()"
+ * ^
+ * start
+ * indent will be " "
+ *
+ * @param {number} start
+ * @param {object} state
+ * @return {string}
+ */
+function indentBefore(start, state) {
+ var end = start;
+ start = start - 1;
+
+ while (start > 0 && state.g.source[start] != '\n') {
+ if (!state.g.source[start].match(/[ \t]/)) {
+ end = start;
+ }
+ start--;
+ }
+ return state.g.source.substring(start + 1, end);
+}
+
+function getDocblock(state) {
+ if (!state.g.docblock) {
+ var docblock = _dereq_('./docblock');
+ state.g.docblock =
+ docblock.parseAsObject(docblock.extract(state.g.source));
+ }
+ return state.g.docblock;
+}
+
+function identWithinLexicalScope(identName, state, stopBeforeNode) {
+ var currScope = state.localScope;
+ while (currScope) {
+ if (currScope.identifiers[identName] !== undefined) {
+ return true;
+ }
+
+ if (stopBeforeNode && currScope.parentNode === stopBeforeNode) {
+ break;
+ }
+
+ currScope = currScope.parentScope;
+ }
+ return false;
+}
+
+function identInLocalScope(identName, state) {
+ return state.localScope.identifiers[identName] !== undefined;
+}
+
+/**
+ * @param {object} boundaryNode
+ * @param {?array} path
+ * @return {?object} node
+ */
+function initScopeMetadata(boundaryNode, path, node) {
+ return {
+ boundaryNode: boundaryNode,
+ bindingPath: path,
+ bindingNode: node
+ };
+}
+
+function declareIdentInLocalScope(identName, metaData, state) {
+ state.localScope.identifiers[identName] = {
+ boundaryNode: metaData.boundaryNode,
+ path: metaData.bindingPath,
+ node: metaData.bindingNode,
+ state: Object.create(state)
+ };
+}
+
+function getLexicalBindingMetadata(identName, state) {
+ var currScope = state.localScope;
+ while (currScope) {
+ if (currScope.identifiers[identName] !== undefined) {
+ return currScope.identifiers[identName];
+ }
+
+ currScope = currScope.parentScope;
+ }
+}
+
+function getLocalBindingMetadata(identName, state) {
+ return state.localScope.identifiers[identName];
+}
+
+/**
+ * Apply the given analyzer function to the current node. If the analyzer
+ * doesn't return false, traverse each child of the current node using the given
+ * traverser function.
+ *
+ * @param {function} analyzer
+ * @param {function} traverser
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function analyzeAndTraverse(analyzer, traverser, node, path, state) {
+ if (node.type) {
+ if (analyzer(node, path, state) === false) {
+ return;
+ }
+ path.unshift(node);
+ }
+
+ getOrderedChildren(node).forEach(function(child) {
+ traverser(child, path, state);
+ });
+
+ node.type && path.shift();
+}
+
+/**
+ * It is crucial that we traverse in order, or else catchup() on a later
+ * node that is processed out of order can move the buffer past a node
+ * that we haven't handled yet, preventing us from modifying that node.
+ *
+ * This can happen when a node has multiple properties containing children.
+ * For example, XJSElement nodes have `openingElement`, `closingElement` and
+ * `children`. If we traverse `openingElement`, then `closingElement`, then
+ * when we get to `children`, the buffer has already caught up to the end of
+ * the closing element, after the children.
+ *
+ * This is basically a Schwartzian transform. Collects an array of children,
+ * each one represented as [child, startIndex]; sorts the array by start
+ * index; then traverses the children in that order.
+ */
+function getOrderedChildren(node) {
+ var queue = [];
+ for (var key in node) {
+ if (node.hasOwnProperty(key)) {
+ enqueueNodeWithStartIndex(queue, node[key]);
+ }
+ }
+ queue.sort(function(a, b) { return a[1] - b[1]; });
+ return queue.map(function(pair) { return pair[0]; });
+}
+
+/**
+ * Helper function for analyzeAndTraverse which queues up all of the children
+ * of the given node.
+ *
+ * Children can also be found in arrays, so we basically want to merge all of
+ * those arrays together so we can sort them and then traverse the children
+ * in order.
+ *
+ * One example is the Program node. It contains `body` and `comments`, both
+ * arrays. Lexographically, comments are interspersed throughout the body
+ * nodes, but esprima's AST groups them together.
+ */
+function enqueueNodeWithStartIndex(queue, node) {
+ if (typeof node !== 'object' || node === null) {
+ return;
+ }
+ if (node.range) {
+ queue.push([node, node.range[0]]);
+ } else if (Array.isArray(node)) {
+ for (var ii = 0; ii < node.length; ii++) {
+ enqueueNodeWithStartIndex(queue, node[ii]);
+ }
+ }
+}
+
+/**
+ * Checks whether a node or any of its sub-nodes contains
+ * a syntactic construct of the passed type.
+ * @param {object} node - AST node to test.
+ * @param {string} type - node type to lookup.
+ */
+function containsChildOfType(node, type) {
+ return containsChildMatching(node, function(node) {
+ return node.type === type;
+ });
+}
+
+function containsChildMatching(node, matcher) {
+ var foundMatchingChild = false;
+ function nodeTypeAnalyzer(node) {
+ if (matcher(node) === true) {
+ foundMatchingChild = true;
+ return false;
+ }
+ }
+ function nodeTypeTraverser(child, path, state) {
+ if (!foundMatchingChild) {
+ foundMatchingChild = containsChildMatching(child, matcher);
+ }
+ }
+ analyzeAndTraverse(
+ nodeTypeAnalyzer,
+ nodeTypeTraverser,
+ node,
+ []
+ );
+ return foundMatchingChild;
+}
+
+var scopeTypes = {};
+scopeTypes[Syntax.ArrowFunctionExpression] = true;
+scopeTypes[Syntax.FunctionExpression] = true;
+scopeTypes[Syntax.FunctionDeclaration] = true;
+scopeTypes[Syntax.Program] = true;
+
+function getBoundaryNode(path) {
+ for (var ii = 0; ii < path.length; ++ii) {
+ if (scopeTypes[path[ii].type]) {
+ return path[ii];
+ }
+ }
+ throw new Error(
+ 'Expected to find a node with one of the following types in path:\n' +
+ JSON.stringify(Object.keys(scopeTypes))
+ );
+}
+
+function getTempVar(tempVarIndex) {
+ return '$__' + tempVarIndex;
+}
+
+function injectTempVar(state) {
+ var tempVar = '$__' + (state.localScope.tempVarIndex++);
+ state.localScope.tempVars.push(tempVar);
+ return tempVar;
+}
+
+function injectTempVarDeclarations(state, index) {
+ if (state.localScope.tempVars.length) {
+ state.g.buffer =
+ state.g.buffer.slice(0, index) +
+ 'var ' + state.localScope.tempVars.join(', ') + ';' +
+ state.g.buffer.slice(index);
+ state.localScope.tempVars = [];
+ }
+}
+
+exports.analyzeAndTraverse = analyzeAndTraverse;
+exports.append = append;
+exports.catchup = catchup;
+exports.catchupNewlines = catchupNewlines;
+exports.catchupWhiteOut = catchupWhiteOut;
+exports.catchupWhiteSpace = catchupWhiteSpace;
+exports.containsChildMatching = containsChildMatching;
+exports.containsChildOfType = containsChildOfType;
+exports.createState = createState;
+exports.declareIdentInLocalScope = declareIdentInLocalScope;
+exports.getBoundaryNode = getBoundaryNode;
+exports.getDocblock = getDocblock;
+exports.getLexicalBindingMetadata = getLexicalBindingMetadata;
+exports.getLocalBindingMetadata = getLocalBindingMetadata;
+exports.getNextSyntacticCharOffset = getNextSyntacticCharOffset;
+exports.getNodeSourceText = getNodeSourceText;
+exports.getOrderedChildren = getOrderedChildren;
+exports.getTempVar = getTempVar;
+exports.identInLocalScope = identInLocalScope;
+exports.identWithinLexicalScope = identWithinLexicalScope;
+exports.indentBefore = indentBefore;
+exports.initScopeMetadata = initScopeMetadata;
+exports.injectTempVar = injectTempVar;
+exports.injectTempVarDeclarations = injectTempVarDeclarations;
+exports.move = move;
+exports.scopeTypes = scopeTypes;
+exports.updateIndent = updateIndent;
+exports.updateState = updateState;
+
+},{"./docblock":21,"esprima-fb":9}],24:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*global exports:true*/
+
+/**
+ * Desugars ES6 Arrow functions to ES3 function expressions.
+ * If the function contains `this` expression -- automatically
+ * binds the function to current value of `this`.
+ *
+ * Single parameter, simple expression:
+ *
+ * [1, 2, 3].map(x => x * x);
+ *
+ * [1, 2, 3].map(function(x) { return x * x; });
+ *
+ * Several parameters, complex block:
+ *
+ * this.users.forEach((user, idx) => {
+ * return this.isActive(idx) && this.send(user);
+ * });
+ *
+ * this.users.forEach(function(user, idx) {
+ * return this.isActive(idx) && this.send(user);
+ * }.bind(this));
+ *
+ */
+var restParamVisitors = _dereq_('./es6-rest-param-visitors');
+var destructuringVisitors = _dereq_('./es6-destructuring-visitors');
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+/**
+ * @public
+ */
+function visitArrowFunction(traverse, node, path, state) {
+ var notInExpression = (path[0].type === Syntax.ExpressionStatement);
+
+ // Wrap a function into a grouping operator, if it's not
+ // in the expression position.
+ if (notInExpression) {
+ utils.append('(', state);
+ }
+
+ utils.append('function', state);
+ renderParams(traverse, node, path, state);
+
+ // Skip arrow.
+ utils.catchupWhiteSpace(node.body.range[0], state);
+
+ var renderBody = node.body.type == Syntax.BlockStatement
+ ? renderStatementBody
+ : renderExpressionBody;
+
+ path.unshift(node);
+ renderBody(traverse, node, path, state);
+ path.shift();
+
+ // Bind the function only if `this` value is used
+ // inside it or inside any sub-expression.
+ var containsBindingSyntax =
+ utils.containsChildMatching(node.body, function(node) {
+ return node.type === Syntax.ThisExpression
+ || (node.type === Syntax.Identifier
+ && node.name === "super");
+ });
+
+ if (containsBindingSyntax) {
+ utils.append('.bind(this)', state);
+ }
+
+ utils.catchupWhiteSpace(node.range[1], state);
+
+ // Close wrapper if not in the expression.
+ if (notInExpression) {
+ utils.append(')', state);
+ }
+
+ return false;
+}
+
+function renderParams(traverse, node, path, state) {
+ // To preserve inline typechecking directives, we
+ // distinguish between parens-free and paranthesized single param.
+ if (isParensFreeSingleParam(node, state) || !node.params.length) {
+ utils.append('(', state);
+ }
+ if (node.params.length !== 0) {
+ path.unshift(node);
+ traverse(node.params, path, state);
+ path.unshift();
+ }
+ utils.append(')', state);
+}
+
+function isParensFreeSingleParam(node, state) {
+ return node.params.length === 1 &&
+ state.g.source[state.g.position] !== '(';
+}
+
+function renderExpressionBody(traverse, node, path, state) {
+ // Wrap simple expression bodies into a block
+ // with explicit return statement.
+ utils.append('{', state);
+
+ // Special handling of rest param.
+ if (node.rest) {
+ utils.append(
+ restParamVisitors.renderRestParamSetup(node, state),
+ state
+ );
+ }
+
+ // Special handling of destructured params.
+ destructuringVisitors.renderDestructuredComponents(
+ node,
+ utils.updateState(state, {
+ localScope: {
+ parentNode: state.parentNode,
+ parentScope: state.parentScope,
+ identifiers: state.identifiers,
+ tempVarIndex: 0
+ }
+ })
+ );
+
+ utils.append('return ', state);
+ renderStatementBody(traverse, node, path, state);
+ utils.append(';}', state);
+}
+
+function renderStatementBody(traverse, node, path, state) {
+ traverse(node.body, path, state);
+ utils.catchup(node.body.range[1], state);
+}
+
+visitArrowFunction.test = function(node, path, state) {
+ return node.type === Syntax.ArrowFunctionExpression;
+};
+
+exports.visitorList = [
+ visitArrowFunction
+];
+
+
+},{"../src/utils":23,"./es6-destructuring-visitors":27,"./es6-rest-param-visitors":30,"esprima-fb":9}],25:[function(_dereq_,module,exports){
+/**
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ */
+/*global exports:true*/
+
+/**
+ * Implements ES6 call spread.
+ *
+ * instance.method(a, b, c, ...d)
+ *
+ * instance.method.apply(instance, [a, b, c].concat(d))
+ *
+ */
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+function process(traverse, node, path, state) {
+ utils.move(node.range[0], state);
+ traverse(node, path, state);
+ utils.catchup(node.range[1], state);
+}
+
+function visitCallSpread(traverse, node, path, state) {
+ utils.catchup(node.range[0], state);
+
+ if (node.type === Syntax.NewExpression) {
+ // Input = new Set(1, 2, ...list)
+ // Output = new (Function.prototype.bind.apply(Set, [null, 1, 2].concat(list)))
+ utils.append('new (Function.prototype.bind.apply(', state);
+ process(traverse, node.callee, path, state);
+ } else if (node.callee.type === Syntax.MemberExpression) {
+ // Input = get().fn(1, 2, ...more)
+ // Output = (_ = get()).fn.apply(_, [1, 2].apply(more))
+ var tempVar = utils.injectTempVar(state);
+ utils.append('(' + tempVar + ' = ', state);
+ process(traverse, node.callee.object, path, state);
+ utils.append(')', state);
+ if (node.callee.property.type === Syntax.Identifier) {
+ utils.append('.', state);
+ process(traverse, node.callee.property, path, state);
+ } else {
+ utils.append('[', state);
+ process(traverse, node.callee.property, path, state);
+ utils.append(']', state);
+ }
+ utils.append('.apply(' + tempVar, state);
+ } else {
+ // Input = max(1, 2, ...list)
+ // Output = max.apply(null, [1, 2].concat(list))
+ var needsToBeWrappedInParenthesis =
+ node.callee.type === Syntax.FunctionDeclaration ||
+ node.callee.type === Syntax.FunctionExpression;
+ if (needsToBeWrappedInParenthesis) {
+ utils.append('(', state);
+ }
+ process(traverse, node.callee, path, state);
+ if (needsToBeWrappedInParenthesis) {
+ utils.append(')', state);
+ }
+ utils.append('.apply(null', state);
+ }
+ utils.append(', ', state);
+
+ var args = node.arguments.slice();
+ var spread = args.pop();
+ if (args.length || node.type === Syntax.NewExpression) {
+ utils.append('[', state);
+ if (node.type === Syntax.NewExpression) {
+ utils.append('null' + (args.length ? ', ' : ''), state);
+ }
+ while (args.length) {
+ var arg = args.shift();
+ utils.move(arg.range[0], state);
+ traverse(arg, path, state);
+ if (args.length) {
+ utils.catchup(args[0].range[0], state);
+ } else {
+ utils.catchup(arg.range[1], state);
+ }
+ }
+ utils.append('].concat(', state);
+ process(traverse, spread.argument, path, state);
+ utils.append(')', state);
+ } else {
+ process(traverse, spread.argument, path, state);
+ }
+ utils.append(node.type === Syntax.NewExpression ? '))' : ')', state);
+
+ utils.move(node.range[1], state);
+ return false;
+}
+
+visitCallSpread.test = function(node, path, state) {
+ return (
+ (
+ node.type === Syntax.CallExpression ||
+ node.type === Syntax.NewExpression
+ ) &&
+ node.arguments.length > 0 &&
+ node.arguments[node.arguments.length - 1].type === Syntax.SpreadElement
+ );
+};
+
+exports.visitorList = [
+ visitCallSpread
+];
+
+},{"../src/utils":23,"esprima-fb":9}],26:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node:true*/
+
+/**
+ * @typechecks
+ */
+'use strict';
+
+var base62 = _dereq_('base62');
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+var reservedWordsHelper = _dereq_('./reserved-words-helper');
+
+var declareIdentInLocalScope = utils.declareIdentInLocalScope;
+var initScopeMetadata = utils.initScopeMetadata;
+
+var SUPER_PROTO_IDENT_PREFIX = '____SuperProtoOf';
+
+var _anonClassUUIDCounter = 0;
+var _mungedSymbolMaps = {};
+
+function resetSymbols() {
+ _anonClassUUIDCounter = 0;
+ _mungedSymbolMaps = {};
+}
+
+/**
+ * Used to generate a unique class for use with code-gens for anonymous class
+ * expressions.
+ *
+ * @param {object} state
+ * @return {string}
+ */
+function _generateAnonymousClassName(state) {
+ var mungeNamespace = state.mungeNamespace || '';
+ return '____Class' + mungeNamespace + base62.encode(_anonClassUUIDCounter++);
+}
+
+/**
+ * Given an identifier name, munge it using the current state's mungeNamespace.
+ *
+ * @param {string} identName
+ * @param {object} state
+ * @return {string}
+ */
+function _getMungedName(identName, state) {
+ var mungeNamespace = state.mungeNamespace;
+ var shouldMinify = state.g.opts.minify;
+
+ if (shouldMinify) {
+ if (!_mungedSymbolMaps[mungeNamespace]) {
+ _mungedSymbolMaps[mungeNamespace] = {
+ symbolMap: {},
+ identUUIDCounter: 0
+ };
+ }
+
+ var symbolMap = _mungedSymbolMaps[mungeNamespace].symbolMap;
+ if (!symbolMap[identName]) {
+ symbolMap[identName] =
+ base62.encode(_mungedSymbolMaps[mungeNamespace].identUUIDCounter++);
+ }
+ identName = symbolMap[identName];
+ }
+ return '$' + mungeNamespace + identName;
+}
+
+/**
+ * Extracts super class information from a class node.
+ *
+ * Information includes name of the super class and/or the expression string
+ * (if extending from an expression)
+ *
+ * @param {object} node
+ * @param {object} state
+ * @return {object}
+ */
+function _getSuperClassInfo(node, state) {
+ var ret = {
+ name: null,
+ expression: null
+ };
+ if (node.superClass) {
+ if (node.superClass.type === Syntax.Identifier) {
+ ret.name = node.superClass.name;
+ } else {
+ // Extension from an expression
+ ret.name = _generateAnonymousClassName(state);
+ ret.expression = state.g.source.substring(
+ node.superClass.range[0],
+ node.superClass.range[1]
+ );
+ }
+ }
+ return ret;
+}
+
+/**
+ * Used with .filter() to find the constructor method in a list of
+ * MethodDefinition nodes.
+ *
+ * @param {object} classElement
+ * @return {boolean}
+ */
+function _isConstructorMethod(classElement) {
+ return classElement.type === Syntax.MethodDefinition &&
+ classElement.key.type === Syntax.Identifier &&
+ classElement.key.name === 'constructor';
+}
+
+/**
+ * @param {object} node
+ * @param {object} state
+ * @return {boolean}
+ */
+function _shouldMungeIdentifier(node, state) {
+ return (
+ !!state.methodFuncNode &&
+ !utils.getDocblock(state).hasOwnProperty('preventMunge') &&
+ /^_(?!_)/.test(node.name)
+ );
+}
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitClassMethod(traverse, node, path, state) {
+ if (!state.g.opts.es5 && (node.kind === 'get' || node.kind === 'set')) {
+ throw new Error(
+ 'This transform does not support ' + node.kind + 'ter methods for ES6 ' +
+ 'classes. (line: ' + node.loc.start.line + ', col: ' +
+ node.loc.start.column + ')'
+ );
+ }
+ state = utils.updateState(state, {
+ methodNode: node
+ });
+ utils.catchup(node.range[0], state);
+ path.unshift(node);
+ traverse(node.value, path, state);
+ path.shift();
+ return false;
+}
+visitClassMethod.test = function(node, path, state) {
+ return node.type === Syntax.MethodDefinition;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitClassFunctionExpression(traverse, node, path, state) {
+ var methodNode = path[0];
+ var isGetter = methodNode.kind === 'get';
+ var isSetter = methodNode.kind === 'set';
+
+ state = utils.updateState(state, {
+ methodFuncNode: node
+ });
+
+ if (methodNode.key.name === 'constructor') {
+ utils.append('function ' + state.className, state);
+ } else {
+ var methodAccessorComputed = false;
+ var methodAccessor;
+ var prototypeOrStatic = methodNode["static"] ? '' : '.prototype';
+ var objectAccessor = state.className + prototypeOrStatic;
+
+ if (methodNode.key.type === Syntax.Identifier) {
+ // foo() {}
+ methodAccessor = methodNode.key.name;
+ if (_shouldMungeIdentifier(methodNode.key, state)) {
+ methodAccessor = _getMungedName(methodAccessor, state);
+ }
+ if (isGetter || isSetter) {
+ methodAccessor = JSON.stringify(methodAccessor);
+ } else if (reservedWordsHelper.isReservedWord(methodAccessor)) {
+ methodAccessorComputed = true;
+ methodAccessor = JSON.stringify(methodAccessor);
+ }
+ } else if (methodNode.key.type === Syntax.Literal) {
+ // 'foo bar'() {} | get 'foo bar'() {} | set 'foo bar'() {}
+ methodAccessor = JSON.stringify(methodNode.key.value);
+ methodAccessorComputed = true;
+ }
+
+ if (isSetter || isGetter) {
+ utils.append(
+ 'Object.defineProperty(' +
+ objectAccessor + ',' +
+ methodAccessor + ',' +
+ '{configurable:true,' +
+ methodNode.kind + ':function',
+ state
+ );
+ } else {
+ if (state.g.opts.es3) {
+ if (methodAccessorComputed) {
+ methodAccessor = '[' + methodAccessor + ']';
+ } else {
+ methodAccessor = '.' + methodAccessor;
+ }
+ utils.append(
+ objectAccessor +
+ methodAccessor + '=function' + (node.generator ? '*' : ''),
+ state
+ );
+ } else {
+ if (!methodAccessorComputed) {
+ methodAccessor = JSON.stringify(methodAccessor);
+ }
+ utils.append(
+ 'Object.defineProperty(' +
+ objectAccessor + ',' +
+ methodAccessor + ',' +
+ '{writable:true,configurable:true,' +
+ 'value:function' + (node.generator ? '*' : ''),
+ state
+ );
+ }
+ }
+ }
+ utils.move(methodNode.key.range[1], state);
+ utils.append('(', state);
+
+ var params = node.params;
+ if (params.length > 0) {
+ utils.catchupNewlines(params[0].range[0], state);
+ for (var i = 0; i < params.length; i++) {
+ utils.catchup(node.params[i].range[0], state);
+ path.unshift(node);
+ traverse(params[i], path, state);
+ path.shift();
+ }
+ }
+
+ var closingParenPosition = utils.getNextSyntacticCharOffset(')', state);
+ utils.catchupWhiteSpace(closingParenPosition, state);
+
+ var openingBracketPosition = utils.getNextSyntacticCharOffset('{', state);
+ utils.catchup(openingBracketPosition + 1, state);
+
+ if (!state.scopeIsStrict) {
+ utils.append('"use strict";', state);
+ state = utils.updateState(state, {
+ scopeIsStrict: true
+ });
+ }
+ utils.move(node.body.range[0] + '{'.length, state);
+
+ path.unshift(node);
+ traverse(node.body, path, state);
+ path.shift();
+ utils.catchup(node.body.range[1], state);
+
+ if (methodNode.key.name !== 'constructor') {
+ if (isGetter || isSetter || !state.g.opts.es3) {
+ utils.append('})', state);
+ }
+ utils.append(';', state);
+ }
+ return false;
+}
+visitClassFunctionExpression.test = function(node, path, state) {
+ return node.type === Syntax.FunctionExpression
+ && path[0].type === Syntax.MethodDefinition;
+};
+
+function visitClassMethodParam(traverse, node, path, state) {
+ var paramName = node.name;
+ if (_shouldMungeIdentifier(node, state)) {
+ paramName = _getMungedName(node.name, state);
+ }
+ utils.append(paramName, state);
+ utils.move(node.range[1], state);
+}
+visitClassMethodParam.test = function(node, path, state) {
+ if (!path[0] || !path[1]) {
+ return;
+ }
+
+ var parentFuncExpr = path[0];
+ var parentClassMethod = path[1];
+
+ return parentFuncExpr.type === Syntax.FunctionExpression
+ && parentClassMethod.type === Syntax.MethodDefinition
+ && node.type === Syntax.Identifier;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function _renderClassBody(traverse, node, path, state) {
+ var className = state.className;
+ var superClass = state.superClass;
+
+ // Set up prototype of constructor on same line as `extends` for line-number
+ // preservation. This relies on function-hoisting if a constructor function is
+ // defined in the class body.
+ if (superClass.name) {
+ // If the super class is an expression, we need to memoize the output of the
+ // expression into the generated class name variable and use that to refer
+ // to the super class going forward. Example:
+ //
+ // class Foo extends mixin(Bar, Baz) {}
+ // --transforms to--
+ // function Foo() {} var ____Class0Blah = mixin(Bar, Baz);
+ if (superClass.expression !== null) {
+ utils.append(
+ 'var ' + superClass.name + '=' + superClass.expression + ';',
+ state
+ );
+ }
+
+ var keyName = superClass.name + '____Key';
+ var keyNameDeclarator = '';
+ if (!utils.identWithinLexicalScope(keyName, state)) {
+ keyNameDeclarator = 'var ';
+ declareIdentInLocalScope(keyName, initScopeMetadata(node), state);
+ }
+ utils.append(
+ 'for(' + keyNameDeclarator + keyName + ' in ' + superClass.name + '){' +
+ 'if(' + superClass.name + '.hasOwnProperty(' + keyName + ')){' +
+ className + '[' + keyName + ']=' +
+ superClass.name + '[' + keyName + '];' +
+ '}' +
+ '}',
+ state
+ );
+
+ var superProtoIdentStr = SUPER_PROTO_IDENT_PREFIX + superClass.name;
+ if (!utils.identWithinLexicalScope(superProtoIdentStr, state)) {
+ utils.append(
+ 'var ' + superProtoIdentStr + '=' + superClass.name + '===null?' +
+ 'null:' + superClass.name + '.prototype;',
+ state
+ );
+ declareIdentInLocalScope(superProtoIdentStr, initScopeMetadata(node), state);
+ }
+
+ utils.append(
+ className + '.prototype=Object.create(' + superProtoIdentStr + ');',
+ state
+ );
+ utils.append(
+ className + '.prototype.constructor=' + className + ';',
+ state
+ );
+ utils.append(
+ className + '.__superConstructor__=' + superClass.name + ';',
+ state
+ );
+ }
+
+ // If there's no constructor method specified in the class body, create an
+ // empty constructor function at the top (same line as the class keyword)
+ if (!node.body.body.filter(_isConstructorMethod).pop()) {
+ utils.append('function ' + className + '(){', state);
+ if (!state.scopeIsStrict) {
+ utils.append('"use strict";', state);
+ }
+ if (superClass.name) {
+ utils.append(
+ 'if(' + superClass.name + '!==null){' +
+ superClass.name + '.apply(this,arguments);}',
+ state
+ );
+ }
+ utils.append('}', state);
+ }
+
+ utils.move(node.body.range[0] + '{'.length, state);
+ traverse(node.body, path, state);
+ utils.catchupWhiteSpace(node.range[1], state);
+}
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitClassDeclaration(traverse, node, path, state) {
+ var className = node.id.name;
+ var superClass = _getSuperClassInfo(node, state);
+
+ state = utils.updateState(state, {
+ mungeNamespace: className,
+ className: className,
+ superClass: superClass
+ });
+
+ _renderClassBody(traverse, node, path, state);
+
+ return false;
+}
+visitClassDeclaration.test = function(node, path, state) {
+ return node.type === Syntax.ClassDeclaration;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitClassExpression(traverse, node, path, state) {
+ var className = node.id && node.id.name || _generateAnonymousClassName(state);
+ var superClass = _getSuperClassInfo(node, state);
+
+ utils.append('(function(){', state);
+
+ state = utils.updateState(state, {
+ mungeNamespace: className,
+ className: className,
+ superClass: superClass
+ });
+
+ _renderClassBody(traverse, node, path, state);
+
+ utils.append('return ' + className + ';})()', state);
+ return false;
+}
+visitClassExpression.test = function(node, path, state) {
+ return node.type === Syntax.ClassExpression;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitPrivateIdentifier(traverse, node, path, state) {
+ utils.append(_getMungedName(node.name, state), state);
+ utils.move(node.range[1], state);
+}
+visitPrivateIdentifier.test = function(node, path, state) {
+ if (node.type === Syntax.Identifier && _shouldMungeIdentifier(node, state)) {
+ // Always munge non-computed properties of MemberExpressions
+ // (a la preventing access of properties of unowned objects)
+ if (path[0].type === Syntax.MemberExpression && path[0].object !== node
+ && path[0].computed === false) {
+ return true;
+ }
+
+ // Always munge identifiers that were declared within the method function
+ // scope
+ if (utils.identWithinLexicalScope(node.name, state, state.methodFuncNode)) {
+ return true;
+ }
+
+ // Always munge private keys on object literals defined within a method's
+ // scope.
+ if (path[0].type === Syntax.Property
+ && path[1].type === Syntax.ObjectExpression) {
+ return true;
+ }
+
+ // Always munge function parameters
+ if (path[0].type === Syntax.FunctionExpression
+ || path[0].type === Syntax.FunctionDeclaration
+ || path[0].type === Syntax.ArrowFunctionExpression) {
+ for (var i = 0; i < path[0].params.length; i++) {
+ if (path[0].params[i] === node) {
+ return true;
+ }
+ }
+ }
+ }
+ return false;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitSuperCallExpression(traverse, node, path, state) {
+ var superClassName = state.superClass.name;
+
+ if (node.callee.type === Syntax.Identifier) {
+ if (_isConstructorMethod(state.methodNode)) {
+ utils.append(superClassName + '.call(', state);
+ } else {
+ var protoProp = SUPER_PROTO_IDENT_PREFIX + superClassName;
+ if (state.methodNode.key.type === Syntax.Identifier) {
+ protoProp += '.' + state.methodNode.key.name;
+ } else if (state.methodNode.key.type === Syntax.Literal) {
+ protoProp += '[' + JSON.stringify(state.methodNode.key.value) + ']';
+ }
+ utils.append(protoProp + ".call(", state);
+ }
+ utils.move(node.callee.range[1], state);
+ } else if (node.callee.type === Syntax.MemberExpression) {
+ utils.append(SUPER_PROTO_IDENT_PREFIX + superClassName, state);
+ utils.move(node.callee.object.range[1], state);
+
+ if (node.callee.computed) {
+ // ["a" + "b"]
+ utils.catchup(node.callee.property.range[1] + ']'.length, state);
+ } else {
+ // .ab
+ utils.append('.' + node.callee.property.name, state);
+ }
+
+ utils.append('.call(', state);
+ utils.move(node.callee.range[1], state);
+ }
+
+ utils.append('this', state);
+ if (node.arguments.length > 0) {
+ utils.append(',', state);
+ utils.catchupWhiteSpace(node.arguments[0].range[0], state);
+ traverse(node.arguments, path, state);
+ }
+
+ utils.catchupWhiteSpace(node.range[1], state);
+ utils.append(')', state);
+ return false;
+}
+visitSuperCallExpression.test = function(node, path, state) {
+ if (state.superClass && node.type === Syntax.CallExpression) {
+ var callee = node.callee;
+ if (callee.type === Syntax.Identifier && callee.name === 'super'
+ || callee.type == Syntax.MemberExpression
+ && callee.object.name === 'super') {
+ return true;
+ }
+ }
+ return false;
+};
+
+/**
+ * @param {function} traverse
+ * @param {object} node
+ * @param {array} path
+ * @param {object} state
+ */
+function visitSuperMemberExpression(traverse, node, path, state) {
+ var superClassName = state.superClass.name;
+
+ utils.append(SUPER_PROTO_IDENT_PREFIX + superClassName, state);
+ utils.move(node.object.range[1], state);
+}
+visitSuperMemberExpression.test = function(node, path, state) {
+ return state.superClass
+ && node.type === Syntax.MemberExpression
+ && node.object.type === Syntax.Identifier
+ && node.object.name === 'super';
+};
+
+exports.resetSymbols = resetSymbols;
+
+exports.visitorList = [
+ visitClassDeclaration,
+ visitClassExpression,
+ visitClassFunctionExpression,
+ visitClassMethod,
+ visitClassMethodParam,
+ visitPrivateIdentifier,
+ visitSuperCallExpression,
+ visitSuperMemberExpression
+];
+
+},{"../src/utils":23,"./reserved-words-helper":34,"base62":10,"esprima-fb":9}],27:[function(_dereq_,module,exports){
+/**
+ * Copyright 2014 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*global exports:true*/
+
+/**
+ * Implements ES6 destructuring assignment and pattern matchng.
+ *
+ * function init({port, ip, coords: [x, y]}) {
+ * return (x && y) ? {id, port} : {ip};
+ * };
+ *
+ * function init($__0) {
+ * var
+ * port = $__0.port,
+ * ip = $__0.ip,
+ * $__1 = $__0.coords,
+ * x = $__1[0],
+ * y = $__1[1];
+ * return (x && y) ? {id, port} : {ip};
+ * }
+ *
+ * var x, {ip, port} = init({ip, port});
+ *
+ * var x, $__0 = init({ip, port}), ip = $__0.ip, port = $__0.port;
+ *
+ */
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+var reservedWordsHelper = _dereq_('./reserved-words-helper');
+var restParamVisitors = _dereq_('./es6-rest-param-visitors');
+var restPropertyHelpers = _dereq_('./es7-rest-property-helpers');
+
+// -------------------------------------------------------
+// 1. Structured variable declarations.
+//
+// var [a, b] = [b, a];
+// var {x, y} = {y, x};
+// -------------------------------------------------------
+
+function visitStructuredVariable(traverse, node, path, state) {
+ // Allocate new temp for the pattern.
+ utils.append(utils.getTempVar(state.localScope.tempVarIndex) + '=', state);
+ // Skip the pattern and assign the init to the temp.
+ utils.catchupWhiteSpace(node.init.range[0], state);
+ traverse(node.init, path, state);
+ utils.catchup(node.init.range[1], state);
+ // Render the destructured data.
+ utils.append(',' + getDestructuredComponents(node.id, state), state);
+ state.localScope.tempVarIndex++;
+ return false;
+}
+
+visitStructuredVariable.test = function(node, path, state) {
+ return node.type === Syntax.VariableDeclarator &&
+ isStructuredPattern(node.id);
+};
+
+function isStructuredPattern(node) {
+ return node.type === Syntax.ObjectPattern ||
+ node.type === Syntax.ArrayPattern;
+}
+
+// Main function which does actual recursive destructuring
+// of nested complex structures.
+function getDestructuredComponents(node, state) {
+ var tmpIndex = state.localScope.tempVarIndex;
+ var components = [];
+ var patternItems = getPatternItems(node);
+
+ for (var idx = 0; idx < patternItems.length; idx++) {
+ var item = patternItems[idx];
+ if (!item) {
+ continue;
+ }
+
+ if (item.type === Syntax.SpreadElement) {
+ // Spread/rest of an array.
+ // TODO(dmitrys): support spread in the middle of a pattern
+ // and also for function param patterns: [x, ...xs, y]
+ components.push(item.argument.name +
+ '=Array.prototype.slice.call(' +
+ utils.getTempVar(tmpIndex) + ',' + idx + ')'
+ );
+ continue;
+ }
+
+ if (item.type === Syntax.SpreadProperty) {
+ var restExpression = restPropertyHelpers.renderRestExpression(
+ utils.getTempVar(tmpIndex),
+ patternItems
+ );
+ components.push(item.argument.name + '=' + restExpression);
+ continue;
+ }
+
+ // Depending on pattern type (Array or Object), we get
+ // corresponding pattern item parts.
+ var accessor = getPatternItemAccessor(node, item, tmpIndex, idx);
+ var value = getPatternItemValue(node, item);
+
+ // TODO(dmitrys): implement default values: {x, y=5}
+ if (value.type === Syntax.Identifier) {
+ // Simple pattern item.
+ components.push(value.name + '=' + accessor);
+ } else {
+ // Complex sub-structure.
+ components.push(
+ utils.getTempVar(++state.localScope.tempVarIndex) + '=' + accessor +
+ ',' + getDestructuredComponents(value, state)
+ );
+ }
+ }
+
+ return components.join(',');
+}
+
+function getPatternItems(node) {
+ return node.properties || node.elements;
+}
+
+function getPatternItemAccessor(node, patternItem, tmpIndex, idx) {
+ var tmpName = utils.getTempVar(tmpIndex);
+ if (node.type === Syntax.ObjectPattern) {
+ if (reservedWordsHelper.isReservedWord(patternItem.key.name)) {
+ return tmpName + '["' + patternItem.key.name + '"]';
+ } else if (patternItem.key.type === Syntax.Literal) {
+ return tmpName + '[' + JSON.stringify(patternItem.key.value) + ']';
+ } else if (patternItem.key.type === Syntax.Identifier) {
+ return tmpName + '.' + patternItem.key.name;
+ }
+ } else if (node.type === Syntax.ArrayPattern) {
+ return tmpName + '[' + idx + ']';
+ }
+}
+
+function getPatternItemValue(node, patternItem) {
+ return node.type === Syntax.ObjectPattern
+ ? patternItem.value
+ : patternItem;
+}
+
+// -------------------------------------------------------
+// 2. Assignment expression.
+//
+// [a, b] = [b, a];
+// ({x, y} = {y, x});
+// -------------------------------------------------------
+
+function visitStructuredAssignment(traverse, node, path, state) {
+ var exprNode = node.expression;
+ utils.append('var ' + utils.getTempVar(state.localScope.tempVarIndex) + '=', state);
+
+ utils.catchupWhiteSpace(exprNode.right.range[0], state);
+ traverse(exprNode.right, path, state);
+ utils.catchup(exprNode.right.range[1], state);
+
+ utils.append(
+ ';' + getDestructuredComponents(exprNode.left, state) + ';',
+ state
+ );
+
+ utils.catchupWhiteSpace(node.range[1], state);
+ state.localScope.tempVarIndex++;
+ return false;
+}
+
+visitStructuredAssignment.test = function(node, path, state) {
+ // We consider the expression statement rather than just assignment
+ // expression to cover case with object patters which should be
+ // wrapped in grouping operator: ({x, y} = {y, x});
+ return node.type === Syntax.ExpressionStatement &&
+ node.expression.type === Syntax.AssignmentExpression &&
+ isStructuredPattern(node.expression.left);
+};
+
+// -------------------------------------------------------
+// 3. Structured parameter.
+//
+// function foo({x, y}) { ... }
+// -------------------------------------------------------
+
+function visitStructuredParameter(traverse, node, path, state) {
+ utils.append(utils.getTempVar(getParamIndex(node, path)), state);
+ utils.catchupWhiteSpace(node.range[1], state);
+ return true;
+}
+
+function getParamIndex(paramNode, path) {
+ var funcNode = path[0];
+ var tmpIndex = 0;
+ for (var k = 0; k < funcNode.params.length; k++) {
+ var param = funcNode.params[k];
+ if (param === paramNode) {
+ break;
+ }
+ if (isStructuredPattern(param)) {
+ tmpIndex++;
+ }
+ }
+ return tmpIndex;
+}
+
+visitStructuredParameter.test = function(node, path, state) {
+ return isStructuredPattern(node) && isFunctionNode(path[0]);
+};
+
+function isFunctionNode(node) {
+ return (node.type == Syntax.FunctionDeclaration ||
+ node.type == Syntax.FunctionExpression ||
+ node.type == Syntax.MethodDefinition ||
+ node.type == Syntax.ArrowFunctionExpression);
+}
+
+// -------------------------------------------------------
+// 4. Function body for structured parameters.
+//
+// function foo({x, y}) { x; y; }
+// -------------------------------------------------------
+
+function visitFunctionBodyForStructuredParameter(traverse, node, path, state) {
+ var funcNode = path[0];
+
+ utils.catchup(funcNode.body.range[0] + 1, state);
+ renderDestructuredComponents(funcNode, state);
+
+ if (funcNode.rest) {
+ utils.append(
+ restParamVisitors.renderRestParamSetup(funcNode, state),
+ state
+ );
+ }
+
+ return true;
+}
+
+function renderDestructuredComponents(funcNode, state) {
+ var destructuredComponents = [];
+
+ for (var k = 0; k < funcNode.params.length; k++) {
+ var param = funcNode.params[k];
+ if (isStructuredPattern(param)) {
+ destructuredComponents.push(
+ getDestructuredComponents(param, state)
+ );
+ state.localScope.tempVarIndex++;
+ }
+ }
+
+ if (destructuredComponents.length) {
+ utils.append('var ' + destructuredComponents.join(',') + ';', state);
+ }
+}
+
+visitFunctionBodyForStructuredParameter.test = function(node, path, state) {
+ return node.type === Syntax.BlockStatement && isFunctionNode(path[0]);
+};
+
+exports.visitorList = [
+ visitStructuredVariable,
+ visitStructuredAssignment,
+ visitStructuredParameter,
+ visitFunctionBodyForStructuredParameter
+];
+
+exports.renderDestructuredComponents = renderDestructuredComponents;
+
+
+},{"../src/utils":23,"./es6-rest-param-visitors":30,"./es7-rest-property-helpers":32,"./reserved-words-helper":34,"esprima-fb":9}],28:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node:true*/
+
+/**
+ * Desugars concise methods of objects to function expressions.
+ *
+ * var foo = {
+ * method(x, y) { ... }
+ * };
+ *
+ * var foo = {
+ * method: function(x, y) { ... }
+ * };
+ *
+ */
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+var reservedWordsHelper = _dereq_('./reserved-words-helper');
+
+function visitObjectConciseMethod(traverse, node, path, state) {
+ var isGenerator = node.value.generator;
+ if (isGenerator) {
+ utils.catchupWhiteSpace(node.range[0] + 1, state);
+ }
+ if (node.computed) { // [<expr>]() { ...}
+ utils.catchup(node.key.range[1] + 1, state);
+ } else if (reservedWordsHelper.isReservedWord(node.key.name)) {
+ utils.catchup(node.key.range[0], state);
+ utils.append('"', state);
+ utils.catchup(node.key.range[1], state);
+ utils.append('"', state);
+ }
+
+ utils.catchup(node.key.range[1], state);
+ utils.append(
+ ':function' + (isGenerator ? '*' : ''),
+ state
+ );
+ path.unshift(node);
+ traverse(node.value, path, state);
+ path.shift();
+ return false;
+}
+
+visitObjectConciseMethod.test = function(node, path, state) {
+ return node.type === Syntax.Property &&
+ node.value.type === Syntax.FunctionExpression &&
+ node.method === true;
+};
+
+exports.visitorList = [
+ visitObjectConciseMethod
+];
+
+},{"../src/utils":23,"./reserved-words-helper":34,"esprima-fb":9}],29:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node: true*/
+
+/**
+ * Desugars ES6 Object Literal short notations into ES3 full notation.
+ *
+ * // Easier return values.
+ * function foo(x, y) {
+ * return {x, y}; // {x: x, y: y}
+ * };
+ *
+ * // Destructuring.
+ * function init({port, ip, coords: {x, y}}) { ... }
+ *
+ */
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+/**
+ * @public
+ */
+function visitObjectLiteralShortNotation(traverse, node, path, state) {
+ utils.catchup(node.key.range[1], state);
+ utils.append(':' + node.key.name, state);
+ return false;
+}
+
+visitObjectLiteralShortNotation.test = function(node, path, state) {
+ return node.type === Syntax.Property &&
+ node.kind === 'init' &&
+ node.shorthand === true &&
+ path[0].type !== Syntax.ObjectPattern;
+};
+
+exports.visitorList = [
+ visitObjectLiteralShortNotation
+];
+
+
+},{"../src/utils":23,"esprima-fb":9}],30:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node:true*/
+
+/**
+ * Desugars ES6 rest parameters into an ES3 arguments array.
+ *
+ * function printf(template, ...args) {
+ * args.forEach(...);
+ * }
+ *
+ * We could use `Array.prototype.slice.call`, but that usage of arguments causes
+ * functions to be deoptimized in V8, so instead we use a for-loop.
+ *
+ * function printf(template) {
+ * for (var args = [], $__0 = 1, $__1 = arguments.length; $__0 < $__1; $__0++)
+ * args.push(arguments[$__0]);
+ * args.forEach(...);
+ * }
+ *
+ */
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+
+
+function _nodeIsFunctionWithRestParam(node) {
+ return (node.type === Syntax.FunctionDeclaration
+ || node.type === Syntax.FunctionExpression
+ || node.type === Syntax.ArrowFunctionExpression)
+ && node.rest;
+}
+
+function visitFunctionParamsWithRestParam(traverse, node, path, state) {
+ if (node.parametricType) {
+ utils.catchup(node.parametricType.range[0], state);
+ path.unshift(node);
+ traverse(node.parametricType, path, state);
+ path.shift();
+ }
+
+ // Render params.
+ if (node.params.length) {
+ path.unshift(node);
+ traverse(node.params, path, state);
+ path.shift();
+ } else {
+ // -3 is for ... of the rest.
+ utils.catchup(node.rest.range[0] - 3, state);
+ }
+ utils.catchupWhiteSpace(node.rest.range[1], state);
+
+ path.unshift(node);
+ traverse(node.body, path, state);
+ path.shift();
+
+ return false;
+}
+
+visitFunctionParamsWithRestParam.test = function(node, path, state) {
+ return _nodeIsFunctionWithRestParam(node);
+};
+
+function renderRestParamSetup(functionNode, state) {
+ var idx = state.localScope.tempVarIndex++;
+ var len = state.localScope.tempVarIndex++;
+
+ return 'for (var ' + functionNode.rest.name + '=[],' +
+ utils.getTempVar(idx) + '=' + functionNode.params.length + ',' +
+ utils.getTempVar(len) + '=arguments.length;' +
+ utils.getTempVar(idx) + '<' + utils.getTempVar(len) + ';' +
+ utils.getTempVar(idx) + '++) ' +
+ functionNode.rest.name + '.push(arguments[' + utils.getTempVar(idx) + ']);';
+}
+
+function visitFunctionBodyWithRestParam(traverse, node, path, state) {
+ utils.catchup(node.range[0] + 1, state);
+ var parentNode = path[0];
+ utils.append(renderRestParamSetup(parentNode, state), state);
+ return true;
+}
+
+visitFunctionBodyWithRestParam.test = function(node, path, state) {
+ return node.type === Syntax.BlockStatement
+ && _nodeIsFunctionWithRestParam(path[0]);
+};
+
+exports.renderRestParamSetup = renderRestParamSetup;
+exports.visitorList = [
+ visitFunctionParamsWithRestParam,
+ visitFunctionBodyWithRestParam
+];
+
+},{"../src/utils":23,"esprima-fb":9}],31:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node:true*/
+
+/**
+ * @typechecks
+ */
+'use strict';
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+/**
+ * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-12.1.9
+ */
+function visitTemplateLiteral(traverse, node, path, state) {
+ var templateElements = node.quasis;
+
+ utils.append('(', state);
+ for (var ii = 0; ii < templateElements.length; ii++) {
+ var templateElement = templateElements[ii];
+ if (templateElement.value.raw !== '') {
+ utils.append(getCookedValue(templateElement), state);
+ if (!templateElement.tail) {
+ // + between element and substitution
+ utils.append(' + ', state);
+ }
+ // maintain line numbers
+ utils.move(templateElement.range[0], state);
+ utils.catchupNewlines(templateElement.range[1], state);
+ } else { // templateElement.value.raw === ''
+ // Concatenat adjacent substitutions, e.g. `${x}${y}`. Empty templates
+ // appear before the first and after the last element - nothing to add in
+ // those cases.
+ if (ii > 0 && !templateElement.tail) {
+ // + between substitution and substitution
+ utils.append(' + ', state);
+ }
+ }
+
+ utils.move(templateElement.range[1], state);
+ if (!templateElement.tail) {
+ var substitution = node.expressions[ii];
+ if (substitution.type === Syntax.Identifier ||
+ substitution.type === Syntax.MemberExpression ||
+ substitution.type === Syntax.CallExpression) {
+ utils.catchup(substitution.range[1], state);
+ } else {
+ utils.append('(', state);
+ traverse(substitution, path, state);
+ utils.catchup(substitution.range[1], state);
+ utils.append(')', state);
+ }
+ // if next templateElement isn't empty...
+ if (templateElements[ii + 1].value.cooked !== '') {
+ utils.append(' + ', state);
+ }
+ }
+ }
+ utils.move(node.range[1], state);
+ utils.append(')', state);
+ return false;
+}
+
+visitTemplateLiteral.test = function(node, path, state) {
+ return node.type === Syntax.TemplateLiteral;
+};
+
+/**
+ * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-12.2.6
+ */
+function visitTaggedTemplateExpression(traverse, node, path, state) {
+ var template = node.quasi;
+ var numQuasis = template.quasis.length;
+
+ // print the tag
+ utils.move(node.tag.range[0], state);
+ traverse(node.tag, path, state);
+ utils.catchup(node.tag.range[1], state);
+
+ // print array of template elements
+ utils.append('(function() { var siteObj = [', state);
+ for (var ii = 0; ii < numQuasis; ii++) {
+ utils.append(getCookedValue(template.quasis[ii]), state);
+ if (ii !== numQuasis - 1) {
+ utils.append(', ', state);
+ }
+ }
+ utils.append(']; siteObj.raw = [', state);
+ for (ii = 0; ii < numQuasis; ii++) {
+ utils.append(getRawValue(template.quasis[ii]), state);
+ if (ii !== numQuasis - 1) {
+ utils.append(', ', state);
+ }
+ }
+ utils.append(
+ ']; Object.freeze(siteObj.raw); Object.freeze(siteObj); return siteObj; }()',
+ state
+ );
+
+ // print substitutions
+ if (numQuasis > 1) {
+ for (ii = 0; ii < template.expressions.length; ii++) {
+ var expression = template.expressions[ii];
+ utils.append(', ', state);
+
+ // maintain line numbers by calling catchupWhiteSpace over the whole
+ // previous TemplateElement
+ utils.move(template.quasis[ii].range[0], state);
+ utils.catchupNewlines(template.quasis[ii].range[1], state);
+
+ utils.move(expression.range[0], state);
+ traverse(expression, path, state);
+ utils.catchup(expression.range[1], state);
+ }
+ }
+
+ // print blank lines to push the closing ) down to account for the final
+ // TemplateElement.
+ utils.catchupNewlines(node.range[1], state);
+
+ utils.append(')', state);
+
+ return false;
+}
+
+visitTaggedTemplateExpression.test = function(node, path, state) {
+ return node.type === Syntax.TaggedTemplateExpression;
+};
+
+function getCookedValue(templateElement) {
+ return JSON.stringify(templateElement.value.cooked);
+}
+
+function getRawValue(templateElement) {
+ return JSON.stringify(templateElement.value.raw);
+}
+
+exports.visitorList = [
+ visitTemplateLiteral,
+ visitTaggedTemplateExpression
+];
+
+},{"../src/utils":23,"esprima-fb":9}],32:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*jslint node:true*/
+
+/**
+ * Desugars ES7 rest properties into ES5 object iteration.
+ */
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+
+// TODO: This is a pretty massive helper, it should only be defined once, in the
+// transform's runtime environment. We don't currently have a runtime though.
+var restFunction =
+ '(function(source, exclusion) {' +
+ 'var rest = {};' +
+ 'var hasOwn = Object.prototype.hasOwnProperty;' +
+ 'if (source == null) {' +
+ 'throw new TypeError();' +
+ '}' +
+ 'for (var key in source) {' +
+ 'if (hasOwn.call(source, key) && !hasOwn.call(exclusion, key)) {' +
+ 'rest[key] = source[key];' +
+ '}' +
+ '}' +
+ 'return rest;' +
+ '})';
+
+function getPropertyNames(properties) {
+ var names = [];
+ for (var i = 0; i < properties.length; i++) {
+ var property = properties[i];
+ if (property.type === Syntax.SpreadProperty) {
+ continue;
+ }
+ if (property.type === Syntax.Identifier) {
+ names.push(property.name);
+ } else {
+ names.push(property.key.name);
+ }
+ }
+ return names;
+}
+
+function getRestFunctionCall(source, exclusion) {
+ return restFunction + '(' + source + ',' + exclusion + ')';
+}
+
+function getSimpleShallowCopy(accessorExpression) {
+ // This could be faster with 'Object.assign({}, ' + accessorExpression + ')'
+ // but to unify code paths and avoid a ES6 dependency we use the same
+ // helper as for the exclusion case.
+ return getRestFunctionCall(accessorExpression, '{}');
+}
+
+function renderRestExpression(accessorExpression, excludedProperties) {
+ var excludedNames = getPropertyNames(excludedProperties);
+ if (!excludedNames.length) {
+ return getSimpleShallowCopy(accessorExpression);
+ }
+ return getRestFunctionCall(
+ accessorExpression,
+ '{' + excludedNames.join(':1,') + ':1}'
+ );
+}
+
+exports.renderRestExpression = renderRestExpression;
+
+},{"esprima-fb":9}],33:[function(_dereq_,module,exports){
+/**
+ * Copyright 2004-present Facebook. All Rights Reserved.
+ */
+/*global exports:true*/
+
+/**
+ * Implements ES7 object spread property.
+ * https://gist.github.com/sebmarkbage/aa849c7973cb4452c547
+ *
+ * { ...a, x: 1 }
+ *
+ * Object.assign({}, a, {x: 1 })
+ *
+ */
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+
+function visitObjectLiteralSpread(traverse, node, path, state) {
+ utils.catchup(node.range[0], state);
+
+ utils.append('Object.assign({', state);
+
+ // Skip the original {
+ utils.move(node.range[0] + 1, state);
+
+ var previousWasSpread = false;
+
+ for (var i = 0; i < node.properties.length; i++) {
+ var property = node.properties[i];
+ if (property.type === Syntax.SpreadProperty) {
+
+ // Close the previous object or initial object
+ if (!previousWasSpread) {
+ utils.append('}', state);
+ }
+
+ if (i === 0) {
+ // Normally there will be a comma when we catch up, but not before
+ // the first property.
+ utils.append(',', state);
+ }
+
+ utils.catchup(property.range[0], state);
+
+ // skip ...
+ utils.move(property.range[0] + 3, state);
+
+ traverse(property.argument, path, state);
+
+ utils.catchup(property.range[1], state);
+
+ previousWasSpread = true;
+
+ } else {
+
+ utils.catchup(property.range[0], state);
+
+ if (previousWasSpread) {
+ utils.append('{', state);
+ }
+
+ traverse(property, path, state);
+
+ utils.catchup(property.range[1], state);
+
+ previousWasSpread = false;
+
+ }
+ }
+
+ // Strip any non-whitespace between the last item and the end.
+ // We only catch up on whitespace so that we ignore any trailing commas which
+ // are stripped out for IE8 support. Unfortunately, this also strips out any
+ // trailing comments.
+ utils.catchupWhiteSpace(node.range[1] - 1, state);
+
+ // Skip the trailing }
+ utils.move(node.range[1], state);
+
+ if (!previousWasSpread) {
+ utils.append('}', state);
+ }
+
+ utils.append(')', state);
+ return false;
+}
+
+visitObjectLiteralSpread.test = function(node, path, state) {
+ if (node.type !== Syntax.ObjectExpression) {
+ return false;
+ }
+ // Tight loop optimization
+ var hasAtLeastOneSpreadProperty = false;
+ for (var i = 0; i < node.properties.length; i++) {
+ var property = node.properties[i];
+ if (property.type === Syntax.SpreadProperty) {
+ hasAtLeastOneSpreadProperty = true;
+ } else if (property.kind !== 'init') {
+ return false;
+ }
+ }
+ return hasAtLeastOneSpreadProperty;
+};
+
+exports.visitorList = [
+ visitObjectLiteralSpread
+];
+
+},{"../src/utils":23,"esprima-fb":9}],34:[function(_dereq_,module,exports){
+/**
+ * Copyright 2014 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+var KEYWORDS = [
+ 'break', 'do', 'in', 'typeof', 'case', 'else', 'instanceof', 'var', 'catch',
+ 'export', 'new', 'void', 'class', 'extends', 'return', 'while', 'const',
+ 'finally', 'super', 'with', 'continue', 'for', 'switch', 'yield', 'debugger',
+ 'function', 'this', 'default', 'if', 'throw', 'delete', 'import', 'try'
+];
+
+var FUTURE_RESERVED_WORDS = [
+ 'enum', 'await', 'implements', 'package', 'protected', 'static', 'interface',
+ 'private', 'public'
+];
+
+var LITERALS = [
+ 'null',
+ 'true',
+ 'false'
+];
+
+// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-reserved-words
+var RESERVED_WORDS = [].concat(
+ KEYWORDS,
+ FUTURE_RESERVED_WORDS,
+ LITERALS
+);
+
+var reservedWordsMap = Object.create(null);
+RESERVED_WORDS.forEach(function(k) {
+ reservedWordsMap[k] = true;
+});
+
+/**
+ * This list should not grow as new reserved words are introdued. This list is
+ * of words that need to be quoted because ES3-ish browsers do not allow their
+ * use as identifier names.
+ */
+var ES3_FUTURE_RESERVED_WORDS = [
+ 'enum', 'implements', 'package', 'protected', 'static', 'interface',
+ 'private', 'public'
+];
+
+var ES3_RESERVED_WORDS = [].concat(
+ KEYWORDS,
+ ES3_FUTURE_RESERVED_WORDS,
+ LITERALS
+);
+
+var es3ReservedWordsMap = Object.create(null);
+ES3_RESERVED_WORDS.forEach(function(k) {
+ es3ReservedWordsMap[k] = true;
+});
+
+exports.isReservedWord = function(word) {
+ return !!reservedWordsMap[word];
+};
+
+exports.isES3ReservedWord = function(word) {
+ return !!es3ReservedWordsMap[word];
+};
+
+},{}],35:[function(_dereq_,module,exports){
+/**
+ * Copyright 2014 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+/*global exports:true*/
+
+var Syntax = _dereq_('esprima-fb').Syntax;
+var utils = _dereq_('../src/utils');
+var reserverdWordsHelper = _dereq_('./reserved-words-helper');
+
+/**
+ * Code adapted from https://github.com/spicyj/es3ify
+ * The MIT License (MIT)
+ * Copyright (c) 2014 Ben Alpert
+ */
+
+function visitProperty(traverse, node, path, state) {
+ utils.catchup(node.key.range[0], state);
+ utils.append('"', state);
+ utils.catchup(node.key.range[1], state);
+ utils.append('"', state);
+ utils.catchup(node.value.range[0], state);
+ traverse(node.value, path, state);
+ return false;
+}
+
+visitProperty.test = function(node) {
+ return node.type === Syntax.Property &&
+ node.key.type === Syntax.Identifier &&
+ !node.method &&
+ !node.shorthand &&
+ !node.computed &&
+ reserverdWordsHelper.isES3ReservedWord(node.key.name);
+};
+
+function visitMemberExpression(traverse, node, path, state) {
+ traverse(node.object, path, state);
+ utils.catchup(node.property.range[0] - 1, state);
+ utils.append('[', state);
+ utils.catchupWhiteSpace(node.property.range[0], state);
+ utils.append('"', state);
+ utils.catchup(node.property.range[1], state);
+ utils.append('"]', state);
+ return false;
+}
+
+visitMemberExpression.test = function(node) {
+ return node.type === Syntax.MemberExpression &&
+ node.property.type === Syntax.Identifier &&
+ reserverdWordsHelper.isES3ReservedWord(node.property.name);
+};
+
+exports.visitorList = [
+ visitProperty,
+ visitMemberExpression
+];
+
+},{"../src/utils":23,"./reserved-words-helper":34,"esprima-fb":9}],36:[function(_dereq_,module,exports){
+var esprima = _dereq_('esprima-fb');
+var utils = _dereq_('../src/utils');
+
+var Syntax = esprima.Syntax;
+
+function _isFunctionNode(node) {
+ return node.type === Syntax.FunctionDeclaration
+ || node.type === Syntax.FunctionExpression
+ || node.type === Syntax.ArrowFunctionExpression;
+}
+
+function visitClassProperty(traverse, node, path, state) {
+ utils.catchup(node.range[0], state);
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitClassProperty.test = function(node, path, state) {
+ return node.type === Syntax.ClassProperty;
+};
+
+function visitTypeAlias(traverse, node, path, state) {
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitTypeAlias.test = function(node, path, state) {
+ return node.type === Syntax.TypeAlias;
+};
+
+function visitTypeCast(traverse, node, path, state) {
+ path.unshift(node);
+ traverse(node.expression, path, state);
+ path.shift();
+
+ utils.catchup(node.typeAnnotation.range[0], state);
+ utils.catchupWhiteOut(node.typeAnnotation.range[1], state);
+ return false;
+}
+visitTypeCast.test = function(node, path, state) {
+ return node.type === Syntax.TypeCastExpression;
+};
+
+function visitInterfaceDeclaration(traverse, node, path, state) {
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitInterfaceDeclaration.test = function(node, path, state) {
+ return node.type === Syntax.InterfaceDeclaration;
+};
+
+function visitDeclare(traverse, node, path, state) {
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitDeclare.test = function(node, path, state) {
+ switch (node.type) {
+ case Syntax.DeclareVariable:
+ case Syntax.DeclareFunction:
+ case Syntax.DeclareClass:
+ case Syntax.DeclareModule:
+ return true;
+ }
+ return false;
+};
+
+function visitFunctionParametricAnnotation(traverse, node, path, state) {
+ utils.catchup(node.range[0], state);
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitFunctionParametricAnnotation.test = function(node, path, state) {
+ return node.type === Syntax.TypeParameterDeclaration
+ && path[0]
+ && _isFunctionNode(path[0])
+ && node === path[0].typeParameters;
+};
+
+function visitFunctionReturnAnnotation(traverse, node, path, state) {
+ utils.catchup(node.range[0], state);
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitFunctionReturnAnnotation.test = function(node, path, state) {
+ return path[0] && _isFunctionNode(path[0]) && node === path[0].returnType;
+};
+
+function visitOptionalFunctionParameterAnnotation(traverse, node, path, state) {
+ utils.catchup(node.range[0] + node.name.length, state);
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitOptionalFunctionParameterAnnotation.test = function(node, path, state) {
+ return node.type === Syntax.Identifier
+ && node.optional
+ && path[0]
+ && _isFunctionNode(path[0]);
+};
+
+function visitTypeAnnotatedIdentifier(traverse, node, path, state) {
+ utils.catchup(node.typeAnnotation.range[0], state);
+ utils.catchupWhiteOut(node.typeAnnotation.range[1], state);
+ return false;
+}
+visitTypeAnnotatedIdentifier.test = function(node, path, state) {
+ return node.type === Syntax.Identifier && node.typeAnnotation;
+};
+
+function visitTypeAnnotatedObjectOrArrayPattern(traverse, node, path, state) {
+ utils.catchup(node.typeAnnotation.range[0], state);
+ utils.catchupWhiteOut(node.typeAnnotation.range[1], state);
+ return false;
+}
+visitTypeAnnotatedObjectOrArrayPattern.test = function(node, path, state) {
+ var rightType = node.type === Syntax.ObjectPattern
+ || node.type === Syntax.ArrayPattern;
+ return rightType && node.typeAnnotation;
+};
+
+/**
+ * Methods cause trouble, since esprima parses them as a key/value pair, where
+ * the location of the value starts at the method body. For example
+ * { bar(x:number,...y:Array<number>):number {} }
+ * is parsed as
+ * { bar: function(x: number, ...y:Array<number>): number {} }
+ * except that the location of the FunctionExpression value is 40-something,
+ * which is the location of the function body. This means that by the time we
+ * visit the params, rest param, and return type organically, we've already
+ * catchup()'d passed them.
+ */
+function visitMethod(traverse, node, path, state) {
+ path.unshift(node);
+ traverse(node.key, path, state);
+
+ path.unshift(node.value);
+ traverse(node.value.params, path, state);
+ node.value.rest && traverse(node.value.rest, path, state);
+ node.value.returnType && traverse(node.value.returnType, path, state);
+ traverse(node.value.body, path, state);
+
+ path.shift();
+
+ path.shift();
+ return false;
+}
+
+visitMethod.test = function(node, path, state) {
+ return (node.type === "Property" && (node.method || node.kind === "set" || node.kind === "get"))
+ || (node.type === "MethodDefinition");
+};
+
+function visitImportType(traverse, node, path, state) {
+ utils.catchupWhiteOut(node.range[1], state);
+ return false;
+}
+visitImportType.test = function(node, path, state) {
+ return node.type === 'ImportDeclaration'
+ && node.isType;
+};
+
+exports.visitorList = [
+ visitClassProperty,
+ visitDeclare,
+ visitImportType,
+ visitInterfaceDeclaration,
+ visitFunctionParametricAnnotation,
+ visitFunctionReturnAnnotation,
+ visitMethod,
+ visitOptionalFunctionParameterAnnotation,
+ visitTypeAlias,
+ visitTypeCast,
+ visitTypeAnnotatedIdentifier,
+ visitTypeAnnotatedObjectOrArrayPattern
+];
+
+},{"../src/utils":23,"esprima-fb":9}],37:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+/*global exports:true*/
+'use strict';
+var Syntax = _dereq_('jstransform').Syntax;
+var utils = _dereq_('jstransform/src/utils');
+
+function renderJSXLiteral(object, isLast, state, start, end) {
+ var lines = object.value.split(/\r\n|\n|\r/);
+
+ if (start) {
+ utils.append(start, state);
+ }
+
+ var lastNonEmptyLine = 0;
+
+ lines.forEach(function(line, index) {
+ if (line.match(/[^ \t]/)) {
+ lastNonEmptyLine = index;
+ }
+ });
+
+ lines.forEach(function(line, index) {
+ var isFirstLine = index === 0;
+ var isLastLine = index === lines.length - 1;
+ var isLastNonEmptyLine = index === lastNonEmptyLine;
+
+ // replace rendered whitespace tabs with spaces
+ var trimmedLine = line.replace(/\t/g, ' ');
+
+ // trim whitespace touching a newline
+ if (!isFirstLine) {
+ trimmedLine = trimmedLine.replace(/^[ ]+/, '');
+ }
+ if (!isLastLine) {
+ trimmedLine = trimmedLine.replace(/[ ]+$/, '');
+ }
+
+ if (!isFirstLine) {
+ utils.append(line.match(/^[ \t]*/)[0], state);
+ }
+
+ if (trimmedLine || isLastNonEmptyLine) {
+ utils.append(
+ JSON.stringify(trimmedLine) +
+ (!isLastNonEmptyLine ? ' + \' \' +' : ''),
+ state);
+
+ if (isLastNonEmptyLine) {
+ if (end) {
+ utils.append(end, state);
+ }
+ if (!isLast) {
+ utils.append(', ', state);
+ }
+ }
+
+ // only restore tail whitespace if line had literals
+ if (trimmedLine && !isLastLine) {
+ utils.append(line.match(/[ \t]*$/)[0], state);
+ }
+ }
+
+ if (!isLastLine) {
+ utils.append('\n', state);
+ }
+ });
+
+ utils.move(object.range[1], state);
+}
+
+function renderJSXExpressionContainer(traverse, object, isLast, path, state) {
+ // Plus 1 to skip `{`.
+ utils.move(object.range[0] + 1, state);
+ utils.catchup(object.expression.range[0], state);
+ traverse(object.expression, path, state);
+
+ if (!isLast && object.expression.type !== Syntax.JSXEmptyExpression) {
+ // If we need to append a comma, make sure to do so after the expression.
+ utils.catchup(object.expression.range[1], state, trimLeft);
+ utils.append(', ', state);
+ }
+
+ // Minus 1 to skip `}`.
+ utils.catchup(object.range[1] - 1, state, trimLeft);
+ utils.move(object.range[1], state);
+ return false;
+}
+
+function quoteAttrName(attr) {
+ // Quote invalid JS identifiers.
+ if (!/^[a-z_$][a-z\d_$]*$/i.test(attr)) {
+ return '"' + attr + '"';
+ }
+ return attr;
+}
+
+function trimLeft(value) {
+ return value.replace(/^[ ]+/, '');
+}
+
+exports.renderJSXExpressionContainer = renderJSXExpressionContainer;
+exports.renderJSXLiteral = renderJSXLiteral;
+exports.quoteAttrName = quoteAttrName;
+exports.trimLeft = trimLeft;
+
+},{"jstransform":22,"jstransform/src/utils":23}],38:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+/*global exports:true*/
+'use strict';
+
+var Syntax = _dereq_('jstransform').Syntax;
+var utils = _dereq_('jstransform/src/utils');
+
+var renderJSXExpressionContainer =
+ _dereq_('./jsx').renderJSXExpressionContainer;
+var renderJSXLiteral = _dereq_('./jsx').renderJSXLiteral;
+var quoteAttrName = _dereq_('./jsx').quoteAttrName;
+
+var trimLeft = _dereq_('./jsx').trimLeft;
+
+/**
+ * Customized desugar processor for React JSX. Currently:
+ *
+ * <X> </X> => React.createElement(X, null)
+ * <X prop="1" /> => React.createElement(X, {prop: '1'}, null)
+ * <X prop="2"><Y /></X> => React.createElement(X, {prop:'2'},
+ * React.createElement(Y, null)
+ * )
+ * <div /> => React.createElement("div", null)
+ */
+
+/**
+ * Removes all non-whitespace/parenthesis characters
+ */
+var reNonWhiteParen = /([^\s\(\)])/g;
+function stripNonWhiteParen(value) {
+ return value.replace(reNonWhiteParen, '');
+}
+
+var tagConvention = /^[a-z]|\-/;
+function isTagName(name) {
+ return tagConvention.test(name);
+}
+
+function visitReactTag(traverse, object, path, state) {
+ var openingElement = object.openingElement;
+ var nameObject = openingElement.name;
+ var attributesObject = openingElement.attributes;
+
+ utils.catchup(openingElement.range[0], state, trimLeft);
+
+ if (nameObject.type === Syntax.JSXNamespacedName && nameObject.namespace) {
+ throw new Error('Namespace tags are not supported. ReactJSX is not XML.');
+ }
+
+ // We assume that the React runtime is already in scope
+ utils.append('React.createElement(', state);
+
+ if (nameObject.type === Syntax.JSXIdentifier && isTagName(nameObject.name)) {
+ utils.append('"' + nameObject.name + '"', state);
+ utils.move(nameObject.range[1], state);
+ } else {
+ // Use utils.catchup in this case so we can easily handle
+ // JSXMemberExpressions which look like Foo.Bar.Baz. This also handles
+ // JSXIdentifiers that aren't fallback tags.
+ utils.move(nameObject.range[0], state);
+ utils.catchup(nameObject.range[1], state);
+ }
+
+ utils.append(', ', state);
+
+ var hasAttributes = attributesObject.length;
+
+ var hasAtLeastOneSpreadProperty = attributesObject.some(function(attr) {
+ return attr.type === Syntax.JSXSpreadAttribute;
+ });
+
+ // if we don't have any attributes, pass in null
+ if (hasAtLeastOneSpreadProperty) {
+ utils.append('React.__spread({', state);
+ } else if (hasAttributes) {
+ utils.append('{', state);
+ } else {
+ utils.append('null', state);
+ }
+
+ // keep track of if the previous attribute was a spread attribute
+ var previousWasSpread = false;
+
+ // write attributes
+ attributesObject.forEach(function(attr, index) {
+ var isLast = index === attributesObject.length - 1;
+
+ if (attr.type === Syntax.JSXSpreadAttribute) {
+ // Close the previous object or initial object
+ if (!previousWasSpread) {
+ utils.append('}, ', state);
+ }
+
+ // Move to the expression start, ignoring everything except parenthesis
+ // and whitespace.
+ utils.catchup(attr.range[0], state, stripNonWhiteParen);
+ // Plus 1 to skip `{`.
+ utils.move(attr.range[0] + 1, state);
+ utils.catchup(attr.argument.range[0], state, stripNonWhiteParen);
+
+ traverse(attr.argument, path, state);
+
+ utils.catchup(attr.argument.range[1], state);
+
+ // Move to the end, ignoring parenthesis and the closing `}`
+ utils.catchup(attr.range[1] - 1, state, stripNonWhiteParen);
+
+ if (!isLast) {
+ utils.append(', ', state);
+ }
+
+ utils.move(attr.range[1], state);
+
+ previousWasSpread = true;
+
+ return;
+ }
+
+ // If the next attribute is a spread, we're effective last in this object
+ if (!isLast) {
+ isLast = attributesObject[index + 1].type === Syntax.JSXSpreadAttribute;
+ }
+
+ if (attr.name.namespace) {
+ throw new Error(
+ 'Namespace attributes are not supported. ReactJSX is not XML.');
+ }
+ var name = attr.name.name;
+
+ utils.catchup(attr.range[0], state, trimLeft);
+
+ if (previousWasSpread) {
+ utils.append('{', state);
+ }
+
+ utils.append(quoteAttrName(name), state);
+ utils.append(': ', state);
+
+ if (!attr.value) {
+ state.g.buffer += 'true';
+ state.g.position = attr.name.range[1];
+ if (!isLast) {
+ utils.append(', ', state);
+ }
+ } else {
+ utils.move(attr.name.range[1], state);
+ // Use catchupNewlines to skip over the '=' in the attribute
+ utils.catchupNewlines(attr.value.range[0], state);
+ if (attr.value.type === Syntax.Literal) {
+ renderJSXLiteral(attr.value, isLast, state);
+ } else {
+ renderJSXExpressionContainer(traverse, attr.value, isLast, path, state);
+ }
+ }
+
+ utils.catchup(attr.range[1], state, trimLeft);
+
+ previousWasSpread = false;
+
+ });
+
+ if (!openingElement.selfClosing) {
+ utils.catchup(openingElement.range[1] - 1, state, trimLeft);
+ utils.move(openingElement.range[1], state);
+ }
+
+ if (hasAttributes && !previousWasSpread) {
+ utils.append('}', state);
+ }
+
+ if (hasAtLeastOneSpreadProperty) {
+ utils.append(')', state);
+ }
+
+ // filter out whitespace
+ var childrenToRender = object.children.filter(function(child) {
+ return !(child.type === Syntax.Literal
+ && typeof child.value === 'string'
+ && child.value.match(/^[ \t]*[\r\n][ \t\r\n]*$/));
+ });
+ if (childrenToRender.length > 0) {
+ var lastRenderableIndex;
+
+ childrenToRender.forEach(function(child, index) {
+ if (child.type !== Syntax.JSXExpressionContainer ||
+ child.expression.type !== Syntax.JSXEmptyExpression) {
+ lastRenderableIndex = index;
+ }
+ });
+
+ if (lastRenderableIndex !== undefined) {
+ utils.append(', ', state);
+ }
+
+ childrenToRender.forEach(function(child, index) {
+ utils.catchup(child.range[0], state, trimLeft);
+
+ var isLast = index >= lastRenderableIndex;
+
+ if (child.type === Syntax.Literal) {
+ renderJSXLiteral(child, isLast, state);
+ } else if (child.type === Syntax.JSXExpressionContainer) {
+ renderJSXExpressionContainer(traverse, child, isLast, path, state);
+ } else {
+ traverse(child, path, state);
+ if (!isLast) {
+ utils.append(', ', state);
+ }
+ }
+
+ utils.catchup(child.range[1], state, trimLeft);
+ });
+ }
+
+ if (openingElement.selfClosing) {
+ // everything up to />
+ utils.catchup(openingElement.range[1] - 2, state, trimLeft);
+ utils.move(openingElement.range[1], state);
+ } else {
+ // everything up to </ sdflksjfd>
+ utils.catchup(object.closingElement.range[0], state, trimLeft);
+ utils.move(object.closingElement.range[1], state);
+ }
+
+ utils.append(')', state);
+ return false;
+}
+
+visitReactTag.test = function(object, path, state) {
+ return object.type === Syntax.JSXElement;
+};
+
+exports.visitorList = [
+ visitReactTag
+];
+
+},{"./jsx":37,"jstransform":22,"jstransform/src/utils":23}],39:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+/*global exports:true*/
+'use strict';
+
+var Syntax = _dereq_('jstransform').Syntax;
+var utils = _dereq_('jstransform/src/utils');
+
+function addDisplayName(displayName, object, state) {
+ if (object &&
+ object.type === Syntax.CallExpression &&
+ object.callee.type === Syntax.MemberExpression &&
+ object.callee.object.type === Syntax.Identifier &&
+ object.callee.object.name === 'React' &&
+ object.callee.property.type === Syntax.Identifier &&
+ object.callee.property.name === 'createClass' &&
+ object.arguments.length === 1 &&
+ object.arguments[0].type === Syntax.ObjectExpression) {
+ // Verify that the displayName property isn't already set
+ var properties = object.arguments[0].properties;
+ var safe = properties.every(function(property) {
+ var value = property.key.type === Syntax.Identifier ?
+ property.key.name :
+ property.key.value;
+ return value !== 'displayName';
+ });
+
+ if (safe) {
+ utils.catchup(object.arguments[0].range[0] + 1, state);
+ utils.append('displayName: "' + displayName + '",', state);
+ }
+ }
+}
+
+/**
+ * Transforms the following:
+ *
+ * var MyComponent = React.createClass({
+ * render: ...
+ * });
+ *
+ * into:
+ *
+ * var MyComponent = React.createClass({
+ * displayName: 'MyComponent',
+ * render: ...
+ * });
+ *
+ * Also catches:
+ *
+ * MyComponent = React.createClass(...);
+ * exports.MyComponent = React.createClass(...);
+ * module.exports = {MyComponent: React.createClass(...)};
+ */
+function visitReactDisplayName(traverse, object, path, state) {
+ var left, right;
+
+ if (object.type === Syntax.AssignmentExpression) {
+ left = object.left;
+ right = object.right;
+ } else if (object.type === Syntax.Property) {
+ left = object.key;
+ right = object.value;
+ } else if (object.type === Syntax.VariableDeclarator) {
+ left = object.id;
+ right = object.init;
+ }
+
+ if (left && left.type === Syntax.MemberExpression) {
+ left = left.property;
+ }
+ if (left && left.type === Syntax.Identifier) {
+ addDisplayName(left.name, right, state);
+ }
+}
+
+visitReactDisplayName.test = function(object, path, state) {
+ return (
+ object.type === Syntax.AssignmentExpression ||
+ object.type === Syntax.Property ||
+ object.type === Syntax.VariableDeclarator
+ );
+};
+
+exports.visitorList = [
+ visitReactDisplayName
+];
+
+},{"jstransform":22,"jstransform/src/utils":23}],40:[function(_dereq_,module,exports){
+/*global exports:true*/
+
+'use strict';
+
+var es6ArrowFunctions =
+ _dereq_('jstransform/visitors/es6-arrow-function-visitors');
+var es6Classes = _dereq_('jstransform/visitors/es6-class-visitors');
+var es6Destructuring =
+ _dereq_('jstransform/visitors/es6-destructuring-visitors');
+var es6ObjectConciseMethod =
+ _dereq_('jstransform/visitors/es6-object-concise-method-visitors');
+var es6ObjectShortNotation =
+ _dereq_('jstransform/visitors/es6-object-short-notation-visitors');
+var es6RestParameters = _dereq_('jstransform/visitors/es6-rest-param-visitors');
+var es6Templates = _dereq_('jstransform/visitors/es6-template-visitors');
+var es6CallSpread =
+ _dereq_('jstransform/visitors/es6-call-spread-visitors');
+var es7SpreadProperty =
+ _dereq_('jstransform/visitors/es7-spread-property-visitors');
+var react = _dereq_('./transforms/react');
+var reactDisplayName = _dereq_('./transforms/reactDisplayName');
+var reservedWords = _dereq_('jstransform/visitors/reserved-words-visitors');
+
+/**
+ * Map from transformName => orderedListOfVisitors.
+ */
+var transformVisitors = {
+ 'es6-arrow-functions': es6ArrowFunctions.visitorList,
+ 'es6-classes': es6Classes.visitorList,
+ 'es6-destructuring': es6Destructuring.visitorList,
+ 'es6-object-concise-method': es6ObjectConciseMethod.visitorList,
+ 'es6-object-short-notation': es6ObjectShortNotation.visitorList,
+ 'es6-rest-params': es6RestParameters.visitorList,
+ 'es6-templates': es6Templates.visitorList,
+ 'es6-call-spread': es6CallSpread.visitorList,
+ 'es7-spread-property': es7SpreadProperty.visitorList,
+ 'react': react.visitorList.concat(reactDisplayName.visitorList),
+ 'reserved-words': reservedWords.visitorList
+};
+
+var transformSets = {
+ 'harmony': [
+ 'es6-arrow-functions',
+ 'es6-object-concise-method',
+ 'es6-object-short-notation',
+ 'es6-classes',
+ 'es6-rest-params',
+ 'es6-templates',
+ 'es6-destructuring',
+ 'es6-call-spread',
+ 'es7-spread-property'
+ ],
+ 'es3': [
+ 'reserved-words'
+ ],
+ 'react': [
+ 'react'
+ ]
+};
+
+/**
+ * Specifies the order in which each transform should run.
+ */
+var transformRunOrder = [
+ 'reserved-words',
+ 'es6-arrow-functions',
+ 'es6-object-concise-method',
+ 'es6-object-short-notation',
+ 'es6-classes',
+ 'es6-rest-params',
+ 'es6-templates',
+ 'es6-destructuring',
+ 'es6-call-spread',
+ 'es7-spread-property',
+ 'react'
+];
+
+/**
+ * Given a list of transform names, return the ordered list of visitors to be
+ * passed to the transform() function.
+ *
+ * @param {array?} excludes
+ * @return {array}
+ */
+function getAllVisitors(excludes) {
+ var ret = [];
+ for (var i = 0, il = transformRunOrder.length; i < il; i++) {
+ if (!excludes || excludes.indexOf(transformRunOrder[i]) === -1) {
+ ret = ret.concat(transformVisitors[transformRunOrder[i]]);
+ }
+ }
+ return ret;
+}
+
+/**
+ * Given a list of visitor set names, return the ordered list of visitors to be
+ * passed to jstransform.
+ *
+ * @param {array}
+ * @return {array}
+ */
+function getVisitorsBySet(sets) {
+ var visitorsToInclude = sets.reduce(function(visitors, set) {
+ if (!transformSets.hasOwnProperty(set)) {
+ throw new Error('Unknown visitor set: ' + set);
+ }
+ transformSets[set].forEach(function(visitor) {
+ visitors[visitor] = true;
+ });
+ return visitors;
+ }, {});
+
+ var visitorList = [];
+ for (var i = 0; i < transformRunOrder.length; i++) {
+ if (visitorsToInclude.hasOwnProperty(transformRunOrder[i])) {
+ visitorList = visitorList.concat(transformVisitors[transformRunOrder[i]]);
+ }
+ }
+
+ return visitorList;
+}
+
+exports.getVisitorsBySet = getVisitorsBySet;
+exports.getAllVisitors = getAllVisitors;
+exports.transformVisitors = transformVisitors;
+
+},{"./transforms/react":38,"./transforms/reactDisplayName":39,"jstransform/visitors/es6-arrow-function-visitors":24,"jstransform/visitors/es6-call-spread-visitors":25,"jstransform/visitors/es6-class-visitors":26,"jstransform/visitors/es6-destructuring-visitors":27,"jstransform/visitors/es6-object-concise-method-visitors":28,"jstransform/visitors/es6-object-short-notation-visitors":29,"jstransform/visitors/es6-rest-param-visitors":30,"jstransform/visitors/es6-template-visitors":31,"jstransform/visitors/es7-spread-property-visitors":33,"jstransform/visitors/reserved-words-visitors":35}],41:[function(_dereq_,module,exports){
+/**
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+'use strict';
+/*eslint-disable no-undef*/
+var Buffer = _dereq_('buffer').Buffer;
+
+function inlineSourceMap(sourceMap, sourceCode, sourceFilename) {
+ // This can be used with a sourcemap that has already has toJSON called on it.
+ // Check first.
+ var json = sourceMap;
+ if (typeof sourceMap.toJSON === 'function') {
+ json = sourceMap.toJSON();
+ }
+ json.sources = [sourceFilename];
+ json.sourcesContent = [sourceCode];
+ var base64 = Buffer(JSON.stringify(json)).toString('base64');
+ return '//# sourceMappingURL=data:application/json;base64,' + base64;
+}
+
+module.exports = inlineSourceMap;
+
+},{"buffer":3}]},{},[1])(1)
+}); \ No newline at end of file
diff --git a/demo/js_dependencies/Rx.min.js b/demo/js_dependencies/Rx.min.js
new file mode 100644
index 0000000..9ce4153
--- /dev/null
+++ b/demo/js_dependencies/Rx.min.js
@@ -0,0 +1,211 @@
+/**
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
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+ for any such Derivative Works as a whole, provided Your use,
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+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
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+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
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+ Copyright 2015 Netflix, Inc.
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+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
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+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+**/
+"format register";System.register("rxjs/util/noop",[],!0,function(require,e,t){function r(){}var i=System.global,s=i.define;return i.define=void 0,e.noop=r,i.define=s,t.exports}),System.register("rxjs/util/throwError",[],!0,function(require,e,t){function r(e){throw e}var i=System.global,s=i.define;return i.define=void 0,e.throwError=r,i.define=s,t.exports}),System.register("rxjs/util/tryOrOnError",[],!0,function(require,e,t){function r(e){function t(){try{t.target.apply(this,arguments)}catch(e){this.error(e)}}return t.target=e,t}var i=System.global,s=i.define;return i.define=void 0,e.tryOrOnError=r,i.define=s,t.exports}),System.register("rxjs/Subscription",["rxjs/util/noop"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/util/noop"),o=function(){function e(e){this.isUnsubscribed=!1,e&&(this._unsubscribe=e)}return e.prototype._unsubscribe=function(){s.noop()},e.prototype.unsubscribe=function(){if(!this.isUnsubscribed){this.isUnsubscribed=!0;var e=this._unsubscribe,t=this._subscriptions;if(this._subscriptions=void 0,e&&e.call(this),null!=t)for(var r=-1,i=t.length;++r<i;)t[r].unsubscribe()}},e.prototype.add=function(t){if(t&&t!==this&&t!==e.EMPTY){var r=t;switch(typeof t){case"function":r=new e(t);case"object":if(r.isUnsubscribed||"function"!=typeof r.unsubscribe)break;if(this.isUnsubscribed)r.unsubscribe();else{var i=this._subscriptions||(this._subscriptions=[]);i.push(r)}break;default:throw new Error("Unrecognized subscription "+t+" added to Subscription.")}}},e.prototype.remove=function(t){if(null!=t&&t!==this&&t!==e.EMPTY){var r=this._subscriptions;if(r){var i=r.indexOf(t);-1!==i&&r.splice(i,1)}}},e.EMPTY=function(e){return e.isUnsubscribed=!0,e}(new e),e}();return e.Subscription=o,r.define=i,t.exports}),System.register("rxjs/util/root",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s={"boolean":!1,"function":!0,object:!0,number:!1,string:!1,undefined:!1};e.root=s[typeof self]&&self||s[typeof window]&&window;var o=(s[typeof e]&&e&&!e.nodeType&&e,s[typeof t]&&t&&!t.nodeType&&t,s[typeof r]&&r);return!o||o.global!==o&&o.window!==o||(e.root=o),r.define=i,t.exports}),System.register("rxjs/subject/SubjectSubscription",["rxjs/Subscription","rxjs/Subscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscription"),n=require("rxjs/Subscriber"),a=function(e){function t(t,r){e.call(this),this.subject=t,this.observer=r,this.isUnsubscribed=!1}return s(t,e),t.prototype.unsubscribe=function(){if(!this.isUnsubscribed){this.isUnsubscribed=!0;var e=this.subject,t=e.observers;if(this.subject=void 0,t&&0!==t.length&&!e.isUnsubscribed){this.observer instanceof n.Subscriber&&this.observer.unsubscribe();var r=t.indexOf(this.observer);-1!==r&&t.splice(r,1)}}},t}(o.Subscription);return e.SubjectSubscription=a,r.define=i,t.exports}),System.register("rxjs/util/errorObject",[],!0,function(require,e,t){var r=System.global,i=r.define;return r.define=void 0,e.errorObject={e:{}},r.define=i,t.exports}),System.register("rxjs/observable/throw",["rxjs/Observable"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=function(e){function t(t,r){e.call(this),this.error=t,this.scheduler=r}return s(t,e),t.create=function(e,r){return new t(e,r)},t.dispatch=function(e){var t=e.error,r=e.subscriber;r.error(t)},t.prototype._subscribe=function(e){var r=this.error,i=this.scheduler;i?e.add(i.schedule(t.dispatch,0,{error:r,subscriber:e})):e.error(r)},t}(o.Observable);return e.ErrorObservable=n,r.define=i,t.exports}),System.register("rxjs/observable/empty",["rxjs/Observable"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=function(e){function t(t){e.call(this),this.scheduler=t}return s(t,e),t.create=function(e){return new t(e)},t.dispatch=function(e){var t=e.subscriber;t.complete()},t.prototype._subscribe=function(e){var r=this.scheduler;r?e.add(r.schedule(t.dispatch,0,{subscriber:e})):e.complete()},t}(o.Observable);return e.EmptyObservable=n,r.define=i,t.exports}),System.register("rxjs/util/isScheduler",[],!0,function(require,e,t){function r(e){return e&&"function"==typeof e.schedule}var i=System.global,s=i.define;return i.define=void 0,e.isScheduler=r,i.define=s,t.exports}),System.register("rxjs/OuterSubscriber",["rxjs/Subscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscriber"),n=function(e){function t(){e.apply(this,arguments)}return s(t,e),t.prototype.notifyComplete=function(e){this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){this.destination.next(t)},t.prototype.notifyError=function(e,t){this.destination.error(e)},t}(o.Subscriber);return e.OuterSubscriber=n,r.define=i,t.exports}),System.register("rxjs/InnerSubscriber",["rxjs/Subscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in 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i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscription"),n=function(e){function t(t,r){e.call(this),this.scheduler=t,this.work=r}return s(t,e),t.prototype.schedule=function(e){if(this.isUnsubscribed)return this;this.state=e;var t=this.scheduler;return t.actions.push(this),t.flush(),this},t.prototype.execute=function(){if(this.isUnsubscribed)throw new Error("How did did we execute a canceled Action?");this.work(this.state)},t.prototype.unsubscribe=function(){var t=this.scheduler,r=t.actions,i=r.indexOf(this);this.work=void 0,this.state=void 0,this.scheduler=void 0,-1!==i&&r.splice(i,1),e.prototype.unsubscribe.call(this)},t}(o.Subscription);return e.QueueAction=n,r.define=i,t.exports}),System.register("rxjs/scheduler/FutureAction",["rxjs/scheduler/QueueAction"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/scheduler/QueueAction"),n=function(e){function t(t,r){e.call(this,t,r),this.scheduler=t,this.work=r}return s(t,e),t.prototype.schedule=function(e,t){var r=this;if(void 0===t&&(t=0),this.isUnsubscribed)return this;this.delay=t,this.state=e;var i=this.id;null!=i&&(this.id=void 0,clearTimeout(i));var s=this.scheduler;return this.id=setTimeout(function(){r.id=void 0,s.actions.push(r),s.flush()},this.delay),this},t.prototype.unsubscribe=function(){var t=this.id;null!=t&&(this.id=void 0,clearTimeout(t)),e.prototype.unsubscribe.call(this)},t}(o.QueueAction);return e.FutureAction=n,r.define=i,t.exports}),System.register("rxjs/operator/mergeAll-support",["rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/OuterSubscriber"),n=require("rxjs/util/subscribeToResult"),a=function(){function e(e){this.concurrent=e}return e.prototype.call=function(e){return new u(e,this.concurrent)},e}();e.MergeAllOperator=a;var u=function(e){function t(t,r){e.call(this,t),this.concurrent=r,this.hasCompleted=!1,this.buffer=[],this.active=0}return s(t,e),t.prototype._next=function(e){this.active<this.concurrent?e._isScalar?this.destination.next(e.value):(this.active++,this.add(n.subscribeToResult(this,e))):this.buffer.push(e)},t.prototype._complete=function(){this.hasCompleted=!0,0===this.active&&0===this.buffer.length&&this.destination.complete()},t.prototype.notifyComplete=function(e){var t=this.buffer;this.remove(e),this.active--,t.length>0?this._next(t.shift()):0===this.active&&this.hasCompleted&&this.destination.complete()},t}(o.OuterSubscriber);return e.MergeAllSubscriber=u,r.define=i,t.exports}),System.register("rxjs/operator/merge-static",["rxjs/observable/fromArray","rxjs/operator/mergeAll-support","rxjs/scheduler/queue","rxjs/util/isScheduler"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=Number.POSITIVE_INFINITY,i=a.queue,s=e[e.length-1];return u.isScheduler(s)?(i=e.pop(),e.length>1&&"number"==typeof e[e.length-1]&&(r=e.pop())):"number"==typeof s&&(r=e.pop()),1===e.length?e[0]:new o.ArrayObservable(e,i).lift(new n.MergeAllOperator(r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/fromArray"),n=require("rxjs/operator/mergeAll-support"),a=require("rxjs/scheduler/queue"),u=require("rxjs/util/isScheduler");return e.merge=r,i.define=s,t.exports}),System.register("rxjs/subject/AsyncSubject",["rxjs/Subject"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subject"),n=function(e){function t(){e.call(this),this._value=void 0,this._hasNext=!1,this._isScalar=!1}return s(t,e),t.prototype._subscribe=function(t){return this.completeSignal&&this._hasNext&&t.next(this._value),e.prototype._subscribe.call(this,t)},t.prototype._next=function(e){this._value=e,this._hasNext=!0},t.prototype._complete=function(){var e=-1,t=this.observers,r=t.length;if(this.observers=void 0,this.isUnsubscribed=!0,this._hasNext)for(;++e<r;){var i=t[e];i.next(this._value),i.complete()}else for(;++e<r;)t[e].complete();this.isUnsubscribed=!1},t}(o.Subject);return e.AsyncSubject=n,r.define=i,t.exports}),System.register("rxjs/observable/defer",["rxjs/Observable","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=function(e){function t(t){e.call(this),this.observableFactory=t}return s(t,e),t.create=function(e){return new t(e)},t.prototype._subscribe=function(e){var t=n.tryCatch(this.observableFactory)();t===a.errorObject?e.error(a.errorObject.e):t.subscribe(e)},t}(o.Observable);return e.DeferObservable=u,r.define=i,t.exports}),System.register("rxjs/add/observable/empty",["rxjs/Observable","rxjs/observable/empty"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/empty");return s.Observable.empty=o.EmptyObservable.create,r.define=i,t.exports}),System.register("rxjs/observable/fromPromise",["rxjs/Observable","rxjs/Subscription","rxjs/scheduler/queue"],!0,function(require,e,t){function r(e){var t=e.value,r=e.subscriber;r.next(t),r.complete()}function i(e){var t=e.err,r=e.subscriber;r.error(t)}var s=System.global,o=s.define;s.define=void 0;var n=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=require("rxjs/Observable"),u=require("rxjs/Subscription"),c=require("rxjs/scheduler/queue"),l=function(e){function t(t,r){void 0===r&&(r=c.queue),e.call(this),this.promise=t,this.scheduler=r,this._isScalar=!1}return n(t,e),t.create=function(e,r){return void 0===r&&(r=c.queue),new t(e,r)},t.prototype._subscribe=function(e){var t=this,s=this.scheduler,o=this.promise;if(s!==c.queue){var n=new u.Subscription;if(this._isScalar){var a=this.value;n.add(s.schedule(r,0,{value:a,subscriber:e}))}else o.then(function(i){t._isScalar=!0,t.value=i,n.add(s.schedule(r,0,{value:i,subscriber:e}))},function(t){return n.add(s.schedule(i,0,{err:t,subscriber:e}))}).then(null,function(e){s.schedule(function(){throw e})});return n}this._isScalar?(e.next(this.value),e.complete()):o.then(function(r){t._isScalar=!0,t.value=r,e.next(r),e.complete()},function(t){return e.error(t)}).then(null,function(e){setTimeout(function(){throw e})})},t}(a.Observable);return e.PromiseObservable=l,s.define=o,t.exports}),System.register("rxjs/util/isPromise",[],!0,function(require,e,t){function r(e){return e&&"function"!=typeof e.subscribe&&"function"==typeof e.then}var i=System.global,s=i.define;return i.define=void 0,e.isPromise=r,i.define=s,t.exports}),System.register("rxjs/observable/IteratorObservable",["rxjs/Observable","rxjs/util/root","rxjs/util/SymbolShim","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){var t=e[p.SymbolShim.iterator];if(!t&&"string"==typeof e)return new d(e);if(!t&&void 0!==e.length)return new v(e);if(!t)throw new TypeError("Object is not iterable");return e[p.SymbolShim.iterator]()}function i(e){var t=+e.length;return isNaN(t)?0:0!==t&&s(t)?(t=o(t)*Math.floor(Math.abs(t)),0>=t?0:t>x?x:t):t}function s(e){return"number"==typeof e&&l.root.isFinite(e)}function o(e){var t=+e;return 0===t?t:isNaN(t)?t:0>t?-1:1}var n=System.global,a=n.define;n.define=void 0;var u=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},c=require("rxjs/Observable"),l=require("rxjs/util/root"),p=require("rxjs/util/SymbolShim"),b=require("rxjs/util/tryCatch"),h=require("rxjs/util/errorObject"),f=function(e){function t(t,i,s,o){if(e.call(this),this.project=i,this.thisArg=s,this.scheduler=o,null==t)throw new Error("iterator cannot be null.");if(i&&"function"!=typeof i)throw new Error("When provided, `project` must be a function.");this.iterator=r(t)}return u(t,e),t.create=function(e,r,i,s){return new t(e,r,i,s)},t.dispatch=function(e){var t=e.index,r=e.hasError,i=e.thisArg,s=e.project,o=e.iterator,n=e.subscriber;if(r)return void n.error(e.error);var a=o.next();return a.done?void n.complete():(s?(a=b.tryCatch(s).call(i,a.value,t),a===h.errorObject?(e.error=h.errorObject.e,e.hasError=!0):(n.next(a),e.index=t+1)):(n.next(a.value),e.index=t+1),void(n.isUnsubscribed||this.schedule(e)))},t.prototype._subscribe=function(e){var r=0,i=this,s=i.iterator,o=i.project,n=i.thisArg,a=i.scheduler;if(a)e.add(a.schedule(t.dispatch,0,{index:r,thisArg:n,project:o,iterator:s,subscriber:e}));else for(;;){var u=s.next();if(u.done){e.complete();break}if(o){if(u=b.tryCatch(o).call(n,u.value,r++),u===h.errorObject){e.error(h.errorObject.e);break}e.next(u)}else e.next(u.value);if(e.isUnsubscribed)break}},t}(c.Observable);e.IteratorObservable=f;var d=function(){function e(e,t,r){void 0===t&&(t=0),void 0===r&&(r=e.length),this.str=e,this.idx=t,this.len=r}return e.prototype[p.SymbolShim.iterator]=function(){return this},e.prototype.next=function(){return this.idx<this.len?{done:!1,value:this.str.charAt(this.idx++)}:{done:!0,value:void 0}},e}(),v=function(){function e(e,t,r){void 0===t&&(t=0),void 0===r&&(r=i(e)),this.arr=e,this.idx=t,this.len=r}return e.prototype[p.SymbolShim.iterator]=function(){return this},e.prototype.next=function(){return this.idx<this.len?{done:!1,value:this.arr[this.idx++]}:{done:!0,value:void 0}},e}(),x=Math.pow(2,53)-1;return n.define=a,t.exports}),System.register("rxjs/Notification",["rxjs/Observable"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=function(){function e(e,t,r){this.kind=e,this.value=t,this.exception=r,this.hasValue="N"===e}return e.prototype.observe=function(e){switch(this.kind){case"N":return e.next(this.value);case"E":return e.error(this.exception);case"C":return e.complete()}},e.prototype["do"]=function(e,t,r){var i=this.kind;switch(i){case"N":return e(this.value);case"E":return t(this.exception);case"C":return r()}},e.prototype.accept=function(e,t,r){return e&&"function"==typeof e.next?this.observe(e):this["do"](e,t,r)},e.prototype.toObservable=function(){var e=this.kind;switch(e){case"N":return s.Observable.of(this.value);case"E":return s.Observable["throw"](this.exception);case"C":return s.Observable.empty()}},e.createNext=function(t){return"undefined"!=typeof t?new e("N",t):this.undefinedValueNotification},e.createError=function(t){return new e("E",void 0,t)},e.createComplete=function(){return this.completeNotification},e.completeNotification=new e("C"),e.undefinedValueNotification=new e("N",void 0),e}();return e.Notification=o,r.define=i,t.exports}),System.register("rxjs/add/observable/fromArray",["rxjs/Observable","rxjs/observable/fromArray"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/fromArray");return s.Observable.fromArray=o.ArrayObservable.create,s.Observable.of=o.ArrayObservable.of,r.define=i,t.exports}),System.register("rxjs/observable/fromEvent",["rxjs/Observable","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/Subscription"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/Subscription"),c=function(e){function t(t,r,i){e.call(this),this.sourceObj=t,this.eventName=r,this.selector=i}return s(t,e),t.create=function(e,r,i){return new t(e,r,i)},t.setupSubscription=function(e,r,i,s){var o,n=e.toString();if("[object NodeList]"===n||"[object HTMLCollection]"===n)for(var a=0,c=e.length;c>a;a++)t.setupSubscription(e[a],r,i,s);else"function"==typeof e.addEventListener&&"function"==typeof e.removeEventListener?(e.addEventListener(r,i),o=function(){return e.removeEventListener(r,i)}):"function"==typeof e.on&&"function"==typeof e.off?(e.on(r,i),o=function(){return e.off(r,i)}):"function"==typeof e.addListener&&"function"==typeof e.removeListener&&(e.addListener(r,i),o=function(){return e.removeListener(r,i)});s.add(new u.Subscription(o))},t.prototype._subscribe=function(e){var r=this.sourceObj,i=this.eventName,s=this.selector,o=s?function(t){var r=n.tryCatch(s)(t);r===a.errorObject?e.error(r.e):e.next(r)}:function(t){return e.next(t)};t.setupSubscription(r,i,o,e)},t}(o.Observable);return e.FromEventObservable=c,r.define=i,t.exports}),System.register("rxjs/observable/fromEventPattern",["rxjs/Observable","rxjs/Subscription","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/Subscription"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject"),c=function(e){function t(t,r,i){e.call(this),this.addHandler=t,this.removeHandler=r,this.selector=i}return s(t,e),t.create=function(e,r,i){return new t(e,r,i)},t.prototype._subscribe=function(e){var t=this.addHandler,r=this.removeHandler,i=this.selector,s=i?function(t){var r=a.tryCatch(i).apply(null,arguments);r===u.errorObject?e.error(r.e):e.next(r)}:function(t){e.next(t)},o=a.tryCatch(t)(s);o===u.errorObject&&e.error(o.e),e.add(new n.Subscription(function(){r(s)}))},t}(o.Observable);return e.FromEventPatternObservable=c,r.define=i,t.exports}),System.register("rxjs/add/observable/fromPromise",["rxjs/Observable","rxjs/observable/fromPromise"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/fromPromise");return s.Observable.fromPromise=o.PromiseObservable.create,r.define=i,t.exports}),System.register("rxjs/util/isNumeric",[],!0,function(require,e,t){function r(e){return!o(e)&&e-parseFloat(e)+1>=0}var i=System.global,s=i.define;i.define=void 0;var o=Array.isArray;return e.isNumeric=r,i.define=s,t.exports}),System.register("rxjs/util/Immediate",["rxjs/util/root"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/util/root"),o=function(){function e(e){if(this.root=e,e.setImmediate)this.setImmediate=e.setImmediate,this.clearImmediate=e.clearImmediate;else{this.nextHandle=1,this.tasksByHandle={},this.currentlyRunningATask=!1,this.canUseProcessNextTick()?this.setImmediate=this.createProcessNextTickSetImmediate():this.canUsePostMessage()?this.setImmediate=this.createPostMessageSetImmediate():this.canUseMessageChannel()?this.setImmediate=this.createMessageChannelSetImmediate():this.canUseReadyStateChange()?this.setImmediate=this.createReadyStateChangeSetImmediate():this.setImmediate=this.createSetTimeoutSetImmediate();var t=function r(e){delete r.instance.tasksByHandle[e]};t.instance=this,this.clearImmediate=t}}return e.prototype.identify=function(e){return this.root.Object.prototype.toString.call(e)},e.prototype.canUseProcessNextTick=function(){return"[object process]"===this.identify(this.root.process)},e.prototype.canUseMessageChannel=function(){return Boolean(this.root.MessageChannel)},e.prototype.canUseReadyStateChange=function(){var e=this.root.document;return Boolean(e&&"onreadystatechange"in e.createElement("script"))},e.prototype.canUsePostMessage=function(){var e=this.root;if(e.postMessage&&!e.importScripts){var t=!0,r=e.onmessage;return e.onmessage=function(){t=!1},e.postMessage("","*"),e.onmessage=r,t}return!1},e.prototype.partiallyApplied=function(e){for(var t=[],r=1;r<arguments.length;r++)t[r-1]=arguments[r];var i=function s(){var e=s,t=e.handler,r=e.args;"function"==typeof t?t.apply(void 0,r):new Function(""+t)()};return i.handler=e,i.args=t,i},e.prototype.addFromSetImmediateArguments=function(e){return this.tasksByHandle[this.nextHandle]=this.partiallyApplied.apply(void 0,e),this.nextHandle++},e.prototype.createProcessNextTickSetImmediate=function(){var e=function t(){var e=t.instance,r=e.addFromSetImmediateArguments(arguments);return e.root.process.nextTick(e.partiallyApplied(e.runIfPresent,r)),r};return e.instance=this,e},e.prototype.createPostMessageSetImmediate=function(){var e=this.root,t="setImmediate$"+e.Math.random()+"$",r=function s(r){var i=s.instance;r.source===e&&"string"==typeof r.data&&0===r.data.indexOf(t)&&i.runIfPresent(+r.data.slice(t.length))};r.instance=this,e.addEventListener("message",r,!1);var i=function o(){var e=o,t=e.messagePrefix,r=e.instance,i=r.addFromSetImmediateArguments(arguments);return r.root.postMessage(t+i,"*"),i};return i.instance=this,i.messagePrefix=t,i},e.prototype.runIfPresent=function(e){if(this.currentlyRunningATask)this.root.setTimeout(this.partiallyApplied(this.runIfPresent,e),0);else{var t=this.tasksByHandle[e];if(t){this.currentlyRunningATask=!0;try{t()}finally{this.clearImmediate(e),this.currentlyRunningATask=!1}}}},e.prototype.createMessageChannelSetImmediate=function(){var e=this,t=new this.root.MessageChannel;t.port1.onmessage=function(t){var r=t.data;e.runIfPresent(r)};var r=function i(){var e=i,t=e.channel,r=e.instance,s=r.addFromSetImmediateArguments(arguments);return t.port2.postMessage(s),s};return r.channel=t,r.instance=this,r},e.prototype.createReadyStateChangeSetImmediate=function(){var e=function t(){var e=t.instance,r=e.root,i=r.document,s=i.documentElement,o=e.addFromSetImmediateArguments(arguments),n=i.createElement("script");return n.onreadystatechange=function(){e.runIfPresent(o),n.onreadystatechange=null,s.removeChild(n),n=null},s.appendChild(n),o};return e.instance=this,e},e.prototype.createSetTimeoutSetImmediate=function(){var e=function t(){var e=t.instance,r=e.addFromSetImmediateArguments(arguments);return e.root.setTimeout(e.partiallyApplied(e.runIfPresent,r),0),r};return e.instance=this,e},e}();return e.ImmediateDefinition=o,e.Immediate=new o(s.root),r.define=i,t.exports}),System.register("rxjs/observable/never",["rxjs/Observable","rxjs/util/noop"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/util/noop"),a=function(e){function t(){e.call(this)}return s(t,e),t.create=function(){return new t},t.prototype._subscribe=function(e){n.noop()},t}(o.Observable);return e.InfiniteObservable=a,r.define=i,t.exports}),System.register("rxjs/observable/range",["rxjs/Observable"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=function(e){function t(t,r,i){e.call(this),this.start=t,this.end=r,this.scheduler=i}return s(t,e),t.create=function(e,r,i){return void 0===e&&(e=0),void 0===r&&(r=0),new t(e,r,i)},t.dispatch=function(e){var t=e.start,r=e.index,i=e.end,s=e.subscriber;return r>=i?void s.complete():(s.next(t),void(s.isUnsubscribed||(e.index=r+1,e.start=t+1,this.schedule(e))))},t.prototype._subscribe=function(e){var r=0,i=this.start,s=this.end,o=this.scheduler;if(o)e.add(o.schedule(t.dispatch,0,{index:r,end:s,start:i,subscriber:e}));else for(;;){if(r++>=s){e.complete();break}if(e.next(i++),e.isUnsubscribed)break}},t}(o.Observable);return e.RangeObservable=n,r.define=i,t.exports}),System.register("rxjs/add/observable/throw",["rxjs/Observable","rxjs/observable/throw"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/throw");return s.Observable["throw"]=o.ErrorObservable.create,r.define=i,t.exports}),System.register("rxjs/util/isDate",[],!0,function(require,e,t){function r(e){return e instanceof Date&&!isNaN(+e)}var i=System.global,s=i.define;return i.define=void 0,e.isDate=r,i.define=s,t.exports}),System.register("rxjs/operator/zip-support",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult","rxjs/util/SymbolShim"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscriber"),n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/OuterSubscriber"),c=require("rxjs/util/subscribeToResult"),l=require("rxjs/util/SymbolShim"),p=Array.isArray,b=function(){function e(e){this.project=e}return e.prototype.call=function(e){return new h(e,this.project)},e}();e.ZipOperator=b;var h=function(e){function t(t,r,i){void 0===i&&(i=Object.create(null)),e.call(this,t),this.index=0,this.iterators=[],this.active=0,this.project="function"==typeof 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f=function(){function e(e){this.iterator=e,this.nextResult=e.next()}return e.prototype.hasValue=function(){return!0},e.prototype.next=function(){var e=this.nextResult;return this.nextResult=this.iterator.next(),e},e.prototype.hasCompleted=function(){var e=this.nextResult;return e&&e.done},e}(),d=function(){function e(e){this.array=e,this.index=0,this.length=0,this.length=e.length}return e.prototype[l.SymbolShim.iterator]=function(){return this},e.prototype.next=function(e){var t=this.index++,r=this.array;return t<this.length?{value:r[t],done:!1}:{done:!0}},e.prototype.hasValue=function(){return this.array.length>this.index},e.prototype.hasCompleted=function(){return this.array.length===this.index},e}(),v=function(e){function t(t,r,i,s){e.call(this,t),this.parent=r,this.observable=i,this.index=s,this.stillUnsubscribed=!0,this.buffer=[],this.isComplete=!1}return s(t,e),t.prototype[l.SymbolShim.iterator]=function(){return this},t.prototype.next=function(){var e=this.buffer;return 0===e.length&&this.isComplete?{done:!0}:{value:e.shift(),done:!1}},t.prototype.hasValue=function(){return this.buffer.length>0},t.prototype.hasCompleted=function(){return 0===this.buffer.length&&this.isComplete},t.prototype.notifyComplete=function(){this.buffer.length>0?(this.isComplete=!0,this.parent.notifyInactive()):this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){this.buffer.push(t),this.parent.checkIterators()},t.prototype.subscribe=function(e,t){this.add(c.subscribeToResult(this,this.observable,this,t))},t}(u.OuterSubscriber);return r.define=i,t.exports}),System.register("rxjs/operator/buffer",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.buffer=r;var a=function(){function e(e){this.closingNotifier=e}return e.prototype.call=function(e){return new u(e,this.closingNotifier);
+},e}(),u=function(e){function t(t,r){e.call(this,t),this.buffer=[],this.notifierSubscriber=null,this.notifierSubscriber=new c(this),this.add(r._subscribe(this.notifierSubscriber))}return o(t,e),t.prototype._next=function(e){this.buffer.push(e)},t.prototype._error=function(e){this.destination.error(e)},t.prototype._complete=function(){this.destination.complete()},t.prototype.flushBuffer=function(){var e=this.buffer;this.buffer=[],this.destination.next(e),this.isUnsubscribed&&this.notifierSubscriber.unsubscribe()},t}(n.Subscriber),c=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.flushBuffer()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/bufferCount",["rxjs/Subscriber"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=null),this.lift(new a(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.bufferCount=r;var a=function(){function e(e,t){this.bufferSize=e,this.startBufferEvery=t}return e.prototype.call=function(e){return new u(e,this.bufferSize,this.startBufferEvery)},e}(),u=function(e){function t(t,r,i){e.call(this,t),this.bufferSize=r,this.startBufferEvery=i,this.buffers=[[]],this.count=0}return o(t,e),t.prototype._next=function(e){var t=this.count+=1,r=this.destination,i=this.bufferSize,s=null==this.startBufferEvery?i:this.startBufferEvery,o=this.buffers,n=o.length,a=-1;t%s===0&&o.push([]);for(var u=0;n>u;u++){var c=o[u];c.push(e),c.length===i&&(a=u,r.next(c))}-1!==a&&o.splice(a,1)},t.prototype._error=function(e){this.destination.error(e)},t.prototype._complete=function(){for(var e=this.destination,t=this.buffers;t.length>0;){var r=t.shift();r.length>0&&e.next(r)}e.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/bufferTime",["rxjs/Subscriber","rxjs/scheduler/asap"],!0,function(require,e,t){function r(e,t,r){return void 0===t&&(t=null),void 0===r&&(r=l.asap),this.lift(new p(e,t,r))}function i(e){var t=e.subscriber,r=e.buffer;r&&t.closeBuffer(r),e.buffer=t.openBuffer(),t.isUnsubscribed||this.schedule(e,e.bufferTimeSpan)}function s(e){var t=e.bufferCreationInterval,r=e.bufferTimeSpan,i=e.subscriber,s=e.scheduler,n=i.openBuffer(),a=this;i.isUnsubscribed||(a.add(s.schedule(o,r,{subscriber:i,buffer:n})),a.schedule(e,t))}function o(e){var t=e.subscriber,r=e.buffer;t.closeBuffer(r)}var n=System.global,a=n.define;n.define=void 0;var u=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},c=require("rxjs/Subscriber"),l=require("rxjs/scheduler/asap");e.bufferTime=r;var p=function(){function e(e,t,r){this.bufferTimeSpan=e,this.bufferCreationInterval=t,this.scheduler=r}return e.prototype.call=function(e){return new b(e,this.bufferTimeSpan,this.bufferCreationInterval,this.scheduler)},e}(),b=function(e){function t(t,r,n,a){e.call(this,t),this.bufferTimeSpan=r,this.bufferCreationInterval=n,this.scheduler=a,this.buffers=[];var u=this.openBuffer();if(null!==n&&n>=0){var c={subscriber:this,buffer:u},l={bufferTimeSpan:r,bufferCreationInterval:n,subscriber:this,scheduler:a};this.add(a.schedule(o,r,c)),this.add(a.schedule(s,n,l))}else{var p={subscriber:this,buffer:u,bufferTimeSpan:r};this.add(a.schedule(i,r,p))}}return u(t,e),t.prototype._next=function(e){for(var t=this.buffers,r=t.length,i=0;r>i;i++)t[i].push(e)},t.prototype._error=function(e){this.buffers.length=0,this.destination.error(e)},t.prototype._complete=function(){for(var e=this.buffers;e.length>0;)this.destination.next(e.shift());this.destination.complete()},t.prototype.openBuffer=function(){var e=[];return this.buffers.push(e),e},t.prototype.closeBuffer=function(e){this.destination.next(e);var t=this.buffers;t.splice(t.indexOf(e),1)},t}(c.Subscriber);return n.define=a,t.exports}),System.register("rxjs/operator/bufferToggle",["rxjs/Subscriber","rxjs/Subscription","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){return this.lift(new l(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subscription"),u=require("rxjs/util/tryCatch"),c=require("rxjs/util/errorObject");e.bufferToggle=r;var l=function(){function e(e,t){this.openings=e,this.closingSelector=t}return e.prototype.call=function(e){return new p(e,this.openings,this.closingSelector)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.openings=r,this.closingSelector=i,this.contexts=[],this.add(this.openings._subscribe(new b(this)))}return o(t,e),t.prototype._next=function(e){for(var t=this.contexts,r=t.length,i=0;r>i;i++)t[i].buffer.push(e)},t.prototype._error=function(e){for(var t=this.contexts;t.length>0;){var r=t.shift();r.subscription.unsubscribe(),r.buffer=null,r.subscription=null}this.contexts=null,this.destination.error(e)},t.prototype._complete=function(){for(var e=this.contexts;e.length>0;){var t=e.shift();this.destination.next(t.buffer),t.subscription.unsubscribe(),t.buffer=null,t.subscription=null}this.contexts=null,this.destination.complete()},t.prototype.openBuffer=function(e){var t=this.closingSelector,r=this.contexts,i=u.tryCatch(t)(e);if(i===c.errorObject)this._error(i.e);else{var s={buffer:[],subscription:new a.Subscription};r.push(s);var o=new h(this,s),n=i._subscribe(o);s.subscription.add(n),this.add(n)}},t.prototype.closeBuffer=function(e){var t=this.contexts;if(null!==t){var r=e.buffer,i=e.subscription;this.destination.next(r),t.splice(t.indexOf(e),1),this.remove(i),i.unsubscribe()}},t}(n.Subscriber),b=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.openBuffer(e)},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){},t}(n.Subscriber),h=function(e){function t(t,r){e.call(this,null),this.parent=t,this.context=r}return o(t,e),t.prototype._next=function(){this.parent.closeBuffer(this.context)},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.closeBuffer(this.context)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/bufferWhen",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new c(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.bufferWhen=r;var c=function(){function e(e){this.closingSelector=e}return e.prototype.call=function(e){return new l(e,this.closingSelector)},e}(),l=function(e){function t(t,r){e.call(this,t),this.closingSelector=r,this.openBuffer()}return o(t,e),t.prototype._next=function(e){this.buffer.push(e)},t.prototype._error=function(e){this.buffer=null,this.destination.error(e)},t.prototype._complete=function(){var e=this.buffer;this.destination.next(e),this.buffer=null,this.destination.complete()},t.prototype.openBuffer=function(){var e=this.closingNotification;e&&(this.remove(e),e.unsubscribe());var t=this.buffer;t&&this.destination.next(t),this.buffer=[];var r=a.tryCatch(this.closingSelector)();if(r===u.errorObject){var i=r.e;this.buffer=null,this.destination.error(i)}else this.add(this.closingNotification=r._subscribe(new p(this)))},t}(n.Subscriber),p=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(){this.parent.openBuffer()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.openBuffer()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/catch",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){var t=new c(e),r=this.lift(t);return t.caught=r,r}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e._catch=r;var c=function(){function e(e){this.selector=e}return e.prototype.call=function(e){return new l(e,this.selector,this.caught)},e}(),l=function(e){function t(t,r,i){e.call(this,null),this.destination=t,this.selector=r,this.caught=i,this.lastSubscription=this,this.destination.add(this)}return o(t,e),t.prototype._next=function(e){this.destination.next(e)},t.prototype._error=function(e){var t=a.tryCatch(this.selector)(e,this.caught);t===u.errorObject?this.destination.error(u.errorObject.e):(this.lastSubscription.unsubscribe(),this.lastSubscription=t.subscribe(this.destination))},t.prototype._complete=function(){this.lastSubscription.unsubscribe(),this.destination.complete()},t.prototype._unsubscribe=function(){this.lastSubscription.unsubscribe()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/combineAll",["rxjs/operator/combineLatest-support"],!0,function(require,e,t){function r(e){return this.lift(new o.CombineLatestOperator(e))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/combineLatest-support");return e.combineAll=r,i.define=s,t.exports}),System.register("rxjs/operator/combineLatest",["rxjs/observable/fromArray","rxjs/operator/combineLatest-support","rxjs/util/isArray"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=null;return"function"==typeof e[e.length-1]&&(r=e.pop()),1===e.length&&a.isArray(e[0])&&(e=e[0]),e.unshift(this),new o.ArrayObservable(e).lift(new n.CombineLatestOperator(r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/fromArray"),n=require("rxjs/operator/combineLatest-support"),a=require("rxjs/util/isArray");return e.combineLatest=r,i.define=s,t.exports}),System.register("rxjs/operator/concat",["rxjs/util/isScheduler","rxjs/observable/fromArray","rxjs/operator/mergeAll-support"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=e;r.unshift(this);var i=null;return o.isScheduler(r[r.length-1])&&(i=r.pop()),new n.ArrayObservable(r,i).lift(new a.MergeAllOperator(1))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/util/isScheduler"),n=require("rxjs/observable/fromArray"),a=require("rxjs/operator/mergeAll-support");return e.concat=r,i.define=s,t.exports}),System.register("rxjs/operator/concatAll",["rxjs/operator/mergeAll-support"],!0,function(require,e,t){function r(){return this.lift(new o.MergeAllOperator(1))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeAll-support");return e.concatAll=r,i.define=s,t.exports}),System.register("rxjs/operator/mergeMap-support",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/util/subscribeToResult","rxjs/OuterSubscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/tryCatch"),n=require("rxjs/util/errorObject"),a=require("rxjs/util/subscribeToResult"),u=require("rxjs/OuterSubscriber"),c=function(){function e(e,t,r){void 0===r&&(r=Number.POSITIVE_INFINITY),this.project=e,this.resultSelector=t,this.concurrent=r}return e.prototype.call=function(e){return new l(e,this.project,this.resultSelector,this.concurrent)},e}();e.MergeMapOperator=c;var l=function(e){function t(t,r,i,s){void 0===s&&(s=Number.POSITIVE_INFINITY),e.call(this,t),this.project=r,this.resultSelector=i,this.concurrent=s,this.hasCompleted=!1,this.buffer=[],this.active=0,this.index=0}return s(t,e),t.prototype._next=function(e){if(this.active<this.concurrent){var t=this.index++,r=o.tryCatch(this.project)(e,t),i=this.destination;r===n.errorObject?i.error(r.e):(this.active++,this._innerSub(r,e,t))}else this.buffer.push(e)},t.prototype._innerSub=function(e,t,r){this.add(a.subscribeToResult(this,e,t,r))},t.prototype._complete=function(){this.hasCompleted=!0,0===this.active&&0===this.buffer.length&&this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){var s=this,a=s.destination,u=s.resultSelector;if(u){var c=o.tryCatch(u)(e,t,r,i);c===n.errorObject?a.error(n.errorObject.e):a.next(c)}else a.next(t)},t.prototype.notifyComplete=function(e){var t=this.buffer;this.remove(e),this.active--,t.length>0?this._next(t.shift()):0===this.active&&this.hasCompleted&&this.destination.complete()},t}(u.OuterSubscriber);return e.MergeMapSubscriber=l,r.define=i,t.exports}),System.register("rxjs/operator/mergeMapTo-support",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/tryCatch"),n=require("rxjs/util/errorObject"),a=require("rxjs/OuterSubscriber"),u=require("rxjs/util/subscribeToResult"),c=function(){function e(e,t,r){void 0===r&&(r=Number.POSITIVE_INFINITY),this.ish=e,this.resultSelector=t,this.concurrent=r}return e.prototype.call=function(e){return new l(e,this.ish,this.resultSelector,this.concurrent)},e}();e.MergeMapToOperator=c;var l=function(e){function t(t,r,i,s){void 0===s&&(s=Number.POSITIVE_INFINITY),e.call(this,t),this.ish=r,this.resultSelector=i,this.concurrent=s,this.hasCompleted=!1,this.buffer=[],this.active=0,this.index=0}return s(t,e),t.prototype._next=function(e){if(this.active<this.concurrent){var t=this.resultSelector,r=this.index++,i=this.ish,s=this.destination;this.active++,this._innerSub(i,s,t,e,r)}else this.buffer.push(e)},t.prototype._innerSub=function(e,t,r,i,s){this.add(u.subscribeToResult(this,e,i,s))},t.prototype._complete=function(){this.hasCompleted=!0,0===this.active&&0===this.buffer.length&&this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){var s=this,a=s.resultSelector,u=s.destination;if(a){var c=o.tryCatch(a)(e,t,r,i);c===n.errorObject?u.error(n.errorObject.e):u.next(c)}else u.next(t)},t.prototype.notifyError=function(e){this.destination.error(e)},t.prototype.notifyComplete=function(e){var t=this.buffer;this.remove(e),this.active--,t.length>0?this._next(t.shift()):0===this.active&&this.hasCompleted&&this.destination.complete()},t}(a.OuterSubscriber);return e.MergeMapToSubscriber=l,r.define=i,t.exports}),System.register("rxjs/operator/count",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new c(e,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.count=r;var c=function(){function e(e,t){this.predicate=e,this.source=t}return e.prototype.call=function(e){return new l(e,this.predicate,this.source)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.predicate=r,this.source=i,this.count=0,this.index=0}return o(t,e),t.prototype._next=function(e){var t=this.predicate,r=!0;return t&&(r=a.tryCatch(t)(e,this.index++,this.source),r===u.errorObject)?void this.destination.error(r.e):void(r&&(this.count+=1))},t.prototype._complete=function(){this.destination.next(this.count),this.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/dematerialize",["rxjs/Subscriber"],!0,function(require,e,t){function r(){return this.lift(new a)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.dematerialize=r;var a=function(){function e(){}return e.prototype.call=function(e){return new 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t(t,r){e.call(this,t),this.durationSelector=r,this.debouncedSubscription=null,this.lastValue=null,this._index=0}return o(t,e),Object.defineProperty(t.prototype,"index",{get:function(){return this._index},enumerable:!0,configurable:!0}),t.prototype._next=function(e){var t=this.destination,r=++this._index,i=u.tryCatch(this.durationSelector)(e);i===l.errorObject?t.error(l.errorObject.e):(c.isPromise(i)&&(i=n.PromiseObservable.create(i)),this.lastValue=e,this.clearDebounce(),this.add(this.debouncedSubscription=i._subscribe(new h(this,r))))},t.prototype._complete=function(){this.debouncedNext(),this.destination.complete()},t.prototype.debouncedNext=function(){this.clearDebounce(),null!=this.lastValue&&(this.destination.next(this.lastValue),this.lastValue=null)},t.prototype.clearDebounce=function(){var e=this.debouncedSubscription;e&&(e.unsubscribe(),this.remove(e),this.debouncedSubscription=null)},t}(a.Subscriber),h=function(e){function t(t,r){e.call(this,null),this.parent=t,this.currentIndex=r}return o(t,e),t.prototype.debounceNext=function(){var e=this.parent;this.currentIndex===e.index&&(e.debouncedNext(),this.isUnsubscribed||this.unsubscribe())},t.prototype._next=function(e){this.debounceNext()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.debounceNext()},t}(a.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/debounceTime",["rxjs/Subscriber","rxjs/scheduler/asap"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=u.asap),this.lift(new c(e,t))}function i(e){e.debouncedNext()}var s=System.global,o=s.define;s.define=void 0;var n=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=require("rxjs/Subscriber"),u=require("rxjs/scheduler/asap");e.debounceTime=r;var c=function(){function e(e,t){this.dueTime=e,this.scheduler=t}return e.prototype.call=function(e){return new l(e,this.dueTime,this.scheduler)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.dueTime=r,this.scheduler=i,this.debouncedSubscription=null,this.lastValue=null}return n(t,e),t.prototype._next=function(e){this.clearDebounce(),this.lastValue=e,this.add(this.debouncedSubscription=this.scheduler.schedule(i,this.dueTime,this))},t.prototype._complete=function(){this.debouncedNext(),this.destination.complete()},t.prototype.debouncedNext=function(){this.clearDebounce(),null!=this.lastValue&&(this.destination.next(this.lastValue),this.lastValue=null)},t.prototype.clearDebounce=function(){var e=this.debouncedSubscription;null!==e&&(this.remove(e),e.unsubscribe(),this.debouncedSubscription=null)},t}(a.Subscriber);return s.define=o,t.exports}),System.register("rxjs/operator/defaultIfEmpty",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return void 0===e&&(e=null),this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.defaultIfEmpty=r;var a=function(){function e(e){this.defaultValue=e}return e.prototype.call=function(e){return new u(e,this.defaultValue)},e}(),u=function(e){function t(t,r){e.call(this,t),this.defaultValue=r,this.isEmpty=!0}return o(t,e),t.prototype._next=function(e){this.isEmpty=!1,this.destination.next(e)},t.prototype._complete=function(){this.isEmpty&&this.destination.next(this.defaultValue),this.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/delay",["rxjs/Subscriber","rxjs/Notification","rxjs/scheduler/queue","rxjs/util/isDate"],!0,function(require,e,t){function r(e,t){void 0===t&&(t=u.queue);var r=c.isDate(e),i=r?+e-t.now():e;return this.lift(new l(i,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Notification"),u=require("rxjs/scheduler/queue"),c=require("rxjs/util/isDate");e.delay=r;var l=function(){function e(e,t){this.delay=e,this.scheduler=t}return e.prototype.call=function(e){return new p(e,this.delay,this.scheduler)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.delay=r,this.scheduler=i,this.queue=[],this.active=!1,this.errored=!1}return o(t,e),t.dispatch=function(e){for(var t=e.source,r=t.queue,i=e.scheduler,s=e.destination;r.length>0&&r[0].time-i.now()<=0;)r.shift().notification.observe(s);if(r.length>0){var o=Math.max(0,r[0].time-i.now());this.schedule(e,o)}else t.active=!1},t.prototype._schedule=function(e){this.active=!0,this.add(e.schedule(t.dispatch,this.delay,{source:this,destination:this.destination,scheduler:e}))},t.prototype.scheduleNotification=function(e){if(this.errored!==!0){var t=this.scheduler,r=new b(t.now()+this.delay,e);this.queue.push(r),this.active===!1&&this._schedule(t)}},t.prototype._next=function(e){this.scheduleNotification(a.Notification.createNext(e))},t.prototype._error=function(e){this.errored=!0,this.queue=[],this.destination.error(e)},t.prototype._complete=function(){this.scheduleNotification(a.Notification.createComplete())},t}(n.Subscriber),b=function(){function e(e,t){this.time=e,this.notification=t}return e}();return i.define=s,t.exports}),System.register("rxjs/operator/distinctUntilChanged",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new c(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.distinctUntilChanged=r;var c=function(){function e(e){this.compare=e}return e.prototype.call=function(e){return new l(e,this.compare)},e}(),l=function(e){function t(t,r){e.call(this,t),this.hasValue=!1,"function"==typeof r&&(this.compare=r)}return o(t,e),t.prototype.compare=function(e,t){return e===t},t.prototype._next=function(e){var t=!1;if(this.hasValue){if(t=a.tryCatch(this.compare)(this.value,e),t===u.errorObject)return void this.destination.error(u.errorObject.e)}else this.hasValue=!0;Boolean(t)===!1&&(this.value=e,this.destination.next(e))},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/do",["rxjs/Subscriber","rxjs/util/noop","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t,r){var i;return e&&"object"==typeof e?(i=e.next,t=e.error,r=e.complete):i=e,this.lift(new l(i||a.noop,t||a.noop,r||a.noop))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/noop"),u=require("rxjs/util/tryCatch"),c=require("rxjs/util/errorObject");e._do=r;var l=function(){function e(e,t,r){this.next=e,this.error=t,this.complete=r}return e.prototype.call=function(e){return new p(e,this.next,this.error,this.complete)},e}(),p=function(e){function t(t,r,i,s){e.call(this,t),this.__next=r,this.__error=i,this.__complete=s}return o(t,e),t.prototype._next=function(e){var t=u.tryCatch(this.__next)(e);t===c.errorObject?this.destination.error(c.errorObject.e):this.destination.next(e)},t.prototype._error=function(e){var t=u.tryCatch(this.__error)(e);t===c.errorObject?this.destination.error(c.errorObject.e):this.destination.error(e)},t.prototype._complete=function(){var e=u.tryCatch(this.__complete)();e===c.errorObject?this.destination.error(c.errorObject.e):this.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/expand-support",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/tryCatch"),n=require("rxjs/util/errorObject"),a=require("rxjs/OuterSubscriber"),u=require("rxjs/util/subscribeToResult"),c=function(){function e(e,t,r){this.project=e,this.concurrent=t,this.scheduler=r}return e.prototype.call=function(e){return new l(e,this.project,this.concurrent,this.scheduler)},e}();e.ExpandOperator=c;var l=function(e){function t(t,r,i,s){e.call(this,t),this.project=r,this.concurrent=i,this.scheduler=s,this.index=0,this.active=0,this.hasCompleted=!1,i<Number.POSITIVE_INFINITY&&(this.buffer=[])}return s(t,e),t.dispatch=function(e){var t=e.subscriber,r=e.result,i=e.value,s=e.index;t.subscribeToProjection(r,i,s)},t.prototype._next=function(e){var r=this.destination;if(r.isUnsubscribed)return void this._complete();var i=this.index++;if(this.active<this.concurrent){r.next(e);var s=o.tryCatch(this.project)(e,i);if(s===n.errorObject)r.error(s.e);else if(this.scheduler){var a={subscriber:this,result:s,value:e,index:i};this.add(this.scheduler.schedule(t.dispatch,0,a))}else this.subscribeToProjection(s,e,i)}else this.buffer.push(e)},t.prototype.subscribeToProjection=function(e,t,r){e._isScalar?this._next(e.value):(this.active++,this.add(u.subscribeToResult(this,e,t,r)))},t.prototype._complete=function(){this.hasCompleted=!0,this.hasCompleted&&0===this.active&&this.destination.complete()},t.prototype.notifyComplete=function(e){var t=this.buffer;this.remove(e),this.active--,t&&t.length>0&&this._next(t.shift()),this.hasCompleted&&0===this.active&&this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){this._next(t)},t}(a.OuterSubscriber);return e.ExpandSubscriber=l,r.define=i,t.exports}),System.register("rxjs/operator/filter",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){return this.lift(new c(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.filter=r;var c=function(){function e(e,t){this.select=e,this.thisArg=t}return e.prototype.call=function(e){return new l(e,this.select,this.thisArg)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.thisArg=i,this.count=0,this.select=r}return o(t,e),t.prototype._next=function(e){var t=a.tryCatch(this.select).call(this.thisArg||this,e,this.count++);t===u.errorObject?this.destination.error(u.errorObject.e):Boolean(t)&&this.destination.next(e)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/finally",["rxjs/Subscriber","rxjs/Subscription"],!0,function(require,e,t){function r(e){return this.lift(new u(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subscription");e._finally=r;var u=function(){function e(e){this.finallySelector=e}return e.prototype.call=function(e){return new c(e,this.finallySelector)},e}(),c=function(e){function t(t,r){e.call(this,t),this.add(new a.Subscription(r))}return o(t,e),t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/util/EmptyError",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=function(){function e(){this.name="EmptyError",this.message="no elements in sequence"}return e}();return e.EmptyError=s,r.define=i,t.exports}),System.register("rxjs/util/MapPolyfill",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=function(){function e(){this.size=0,this._values=[],this._keys=[]}return e.prototype.get=function(e){var t=this._keys.indexOf(e);return-1===t?void 0:this._values[t]},e.prototype.set=function(e,t){var r=this._keys.indexOf(e);return-1===r?(this._keys.push(e),this._values.push(t),this.size++):this._values[r]=t,this},e.prototype["delete"]=function(e){var t=this._keys.indexOf(e);return-1===t?!1:(this._values.splice(t,1),this._keys.splice(t,1),this.size--,!0)},e.prototype.forEach=function(e,t){for(var r=0;r<this.size;r++)e.call(t,this._values[r],this._keys[r])},e}();return e.MapPolyfill=s,r.define=i,t.exports}),System.register("rxjs/util/FastMap",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=function(){function e(){this.values={}}return e.prototype["delete"]=function(e){return this.values[e]=null,!0},e.prototype.set=function(e,t){return this.values[e]=t,this},e.prototype.get=function(e){return this.values[e]},e.prototype.forEach=function(e,t){var r=this.values;for(var i in r)r.hasOwnProperty(i)&&null!==r[i]&&e.call(t,r[i],i)},e.prototype.clear=function(){this.values={}},e}();return e.FastMap=s,r.define=i,t.exports}),System.register("rxjs/operator/groupBy-support",["rxjs/Subscription","rxjs/Observable"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscription"),n=require("rxjs/Observable"),a=function(e){function t(){e.call(this),this.attemptedToUnsubscribePrimary=!1,this.count=0}return s(t,e),t.prototype.setPrimary=function(e){this.primary=e},t.prototype.unsubscribe=function(){
+this.isUnsubscribed||this.attemptedToUnsubscribePrimary||(this.attemptedToUnsubscribePrimary=!0,0===this.count&&(e.prototype.unsubscribe.call(this),this.primary.unsubscribe()))},t}(o.Subscription);e.RefCountSubscription=a;var u=function(e){function t(t,r,i){e.call(this),this.key=t,this.groupSubject=r,this.refCountSubscription=i}return s(t,e),t.prototype._subscribe=function(e){var t=new o.Subscription;return this.refCountSubscription&&!this.refCountSubscription.isUnsubscribed&&t.add(new c(this.refCountSubscription)),t.add(this.groupSubject.subscribe(e)),t},t}(n.Observable);e.GroupedObservable=u;var c=function(e){function t(t){e.call(this),this.parent=t,t.count++}return s(t,e),t.prototype.unsubscribe=function(){this.parent.isUnsubscribed||this.isUnsubscribed||(e.prototype.unsubscribe.call(this),this.parent.count--,0===this.parent.count&&this.parent.attemptedToUnsubscribePrimary&&(this.parent.unsubscribe(),this.parent.primary.unsubscribe()))},t}(o.Subscription);return e.InnerRefCountSubscription=c,r.define=i,t.exports}),System.register("rxjs/operator/ignoreElements",["rxjs/Subscriber","rxjs/util/noop"],!0,function(require,e,t){function r(){return this.lift(new u)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/noop");e.ignoreElements=r;var u=function(){function e(){}return e.prototype.call=function(e){return new c(e)},e}(),c=function(e){function t(){e.apply(this,arguments)}return o(t,e),t.prototype._next=function(e){a.noop()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/every",["rxjs/observable/ScalarObservable","rxjs/observable/fromArray","rxjs/observable/throw","rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){var r,i=this;if(i._isScalar)return r=l.tryCatch(e).call(t||this,i.value,0,i),r===p.errorObject?new u.ErrorObservable(p.errorObject.e,i.scheduler):new n.ScalarObservable(r,i.scheduler);if(i instanceof a.ArrayObservable){var s=i.array,o=l.tryCatch(function(e,t,r){return e.every(t,r)})(s,e,t);return o===p.errorObject?new u.ErrorObservable(p.errorObject.e,i.scheduler):new n.ScalarObservable(o,i.scheduler)}return i.lift(new b(e,t,i))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/observable/ScalarObservable"),a=require("rxjs/observable/fromArray"),u=require("rxjs/observable/throw"),c=require("rxjs/Subscriber"),l=require("rxjs/util/tryCatch"),p=require("rxjs/util/errorObject");e.every=r;var b=function(){function e(e,t,r){this.predicate=e,this.thisArg=t,this.source=r}return e.prototype.call=function(e){return new h(e,this.predicate,this.thisArg,this.source)},e}(),h=function(e){function t(t,r,i,s){e.call(this,t),this.predicate=r,this.thisArg=i,this.source=s,this.index=0}return o(t,e),t.prototype.notifyComplete=function(e){this.destination.next(e),this.destination.complete()},t.prototype._next=function(e){var t=l.tryCatch(this.predicate).call(this.thisArg||this,e,this.index++,this.source);t===p.errorObject?this.destination.error(t.e):t||this.notifyComplete(!1)},t.prototype._complete=function(){this.notifyComplete(!0)},t}(c.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/last",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/util/EmptyError"],!0,function(require,e,t){function r(e,t,r){return this.lift(new l(e,t,r,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject"),c=require("rxjs/util/EmptyError");e.last=r;var l=function(){function e(e,t,r,i){this.predicate=e,this.resultSelector=t,this.defaultValue=r,this.source=i}return e.prototype.call=function(e){return new p(e,this.predicate,this.resultSelector,this.defaultValue,this.source)},e}(),p=function(e){function t(t,r,i,s,o){e.call(this,t),this.predicate=r,this.resultSelector=i,this.defaultValue=s,this.source=o,this.hasValue=!1,this.index=0,"undefined"!=typeof s&&(this.lastValue=s,this.hasValue=!0)}return o(t,e),t.prototype._next=function(e){var t=this,r=t.predicate,i=t.resultSelector,s=t.destination,o=this.index++;if(r){var n=a.tryCatch(r)(e,o,this.source);if(n===u.errorObject)return void s.error(u.errorObject.e);if(n){if(i){var c=a.tryCatch(i)(e,o);if(c===u.errorObject)return void s.error(u.errorObject.e);this.lastValue=c}else this.lastValue=e;this.hasValue=!0}}else this.lastValue=e,this.hasValue=!0},t.prototype._complete=function(){var e=this.destination;this.hasValue?(e.next(this.lastValue),e.complete()):e.error(new c.EmptyError)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/map",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){if("function"!=typeof e)throw new TypeError("argument is not a function. Are you looking for `mapTo()`?");return this.lift(new c(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.map=r;var c=function(){function e(e,t){this.project=e,this.thisArg=t}return e.prototype.call=function(e){return new l(e,this.project,this.thisArg)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.project=r,this.thisArg=i,this.count=0}return o(t,e),t.prototype._next=function(e){var t=a.tryCatch(this.project).call(this.thisArg||this,e,this.count++);t===u.errorObject?this.error(u.errorObject.e):this.destination.next(t)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/mapTo",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.mapTo=r;var a=function(){function e(e){this.value=e}return e.prototype.call=function(e){return new u(e,this.value)},e}(),u=function(e){function t(t,r){e.call(this,t),this.value=r}return o(t,e),t.prototype._next=function(e){this.destination.next(this.value)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/materialize",["rxjs/Subscriber","rxjs/Notification"],!0,function(require,e,t){function r(){return this.lift(new u)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Notification");e.materialize=r;var u=function(){function e(){}return e.prototype.call=function(e){return new c(e)},e}(),c=function(e){function t(t){e.call(this,t)}return o(t,e),t.prototype._next=function(e){this.destination.next(a.Notification.createNext(e))},t.prototype._error=function(e){var t=this.destination;t.next(a.Notification.createError(e)),t.complete()},t.prototype._complete=function(){var e=this.destination;e.next(a.Notification.createComplete()),e.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/merge",["rxjs/operator/merge-static"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];return e.unshift(this),o.merge.apply(this,e)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/merge-static");return e.merge=r,i.define=s,t.exports}),System.register("rxjs/operator/mergeAll",["rxjs/operator/mergeAll-support"],!0,function(require,e,t){function r(e){return void 0===e&&(e=Number.POSITIVE_INFINITY),this.lift(new o.MergeAllOperator(e))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeAll-support");return e.mergeAll=r,i.define=s,t.exports}),System.register("rxjs/operator/mergeMap",["rxjs/operator/mergeMap-support"],!0,function(require,e,t){function r(e,t,r){return void 0===r&&(r=Number.POSITIVE_INFINITY),this.lift(new o.MergeMapOperator(e,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeMap-support");return e.mergeMap=r,i.define=s,t.exports}),System.register("rxjs/operator/mergeMapTo",["rxjs/operator/mergeMapTo-support"],!0,function(require,e,t){function r(e,t,r){return void 0===r&&(r=Number.POSITIVE_INFINITY),this.lift(new o.MergeMapToOperator(e,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeMapTo-support");return e.mergeMapTo=r,i.define=s,t.exports}),System.register("rxjs/observable/ConnectableObservable",["rxjs/Observable","rxjs/Subscription","rxjs/Subscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/Subscription"),a=require("rxjs/Subscriber"),u=function(e){function t(t,r){e.call(this),this.source=t,this.subjectFactory=r}return s(t,e),t.prototype._subscribe=function(e){return this._getSubject().subscribe(e)},t.prototype._getSubject=function(){var e=this.subject;return e&&!e.isUnsubscribed?e:this.subject=this.subjectFactory()},t.prototype.connect=function(){var e=this.source,t=this.subscription;return t&&!t.isUnsubscribed?t:(t=e.subscribe(this._getSubject()),t.add(new c(this)),this.subscription=t)},t.prototype.refCount=function(){return new l(this)},t}(o.Observable);e.ConnectableObservable=u;var c=function(e){function t(t){e.call(this),this.connectable=t}return s(t,e),t.prototype._unsubscribe=function(){var e=this.connectable;e.subject=void 0,e.subscription=void 0,this.connectable=void 0},t}(n.Subscription),l=function(e){function t(t,r){void 0===r&&(r=0),e.call(this),this.connectable=t,this.refCount=r}return s(t,e),t.prototype._subscribe=function(e){var t=this.connectable,r=new p(e,this),i=t.subscribe(r);return i.isUnsubscribed||1!==++this.refCount||(r.connection=this.connection=t.connect()),i},t}(o.Observable),p=function(e){function t(t,r){e.call(this,null),this.destination=t,this.refCountObservable=r,this.connection=r.connection,t.add(this)}return s(t,e),t.prototype._next=function(e){this.destination.next(e)},t.prototype._error=function(e){this._resetConnectable(),this.destination.error(e)},t.prototype._complete=function(){this._resetConnectable(),this.destination.complete()},t.prototype._resetConnectable=function(){var e=this.refCountObservable,t=e.connection,r=this.connection;r&&r===t&&(e.refCount=0,t.unsubscribe(),e.connection=void 0,this.unsubscribe())},t.prototype._unsubscribe=function(){var e=this.refCountObservable;if(0!==e.refCount&&0===--e.refCount){var t=e.connection,r=this.connection;r&&r===t&&(t.unsubscribe(),e.connection=void 0)}},t}(a.Subscriber);return r.define=i,t.exports}),System.register("rxjs/operator/observeOn",["rxjs/operator/observeOn-support"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=0),this.lift(new o.ObserveOnOperator(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/observeOn-support");return e.observeOn=r,i.define=s,t.exports}),System.register("rxjs/util/not",[],!0,function(require,e,t){function r(e,t){function r(){return!r.pred.apply(r.thisArg,arguments)}return r.pred=e,r.thisArg=t,r}var i=System.global,s=i.define;return i.define=void 0,e.not=r,i.define=s,t.exports}),System.register("rxjs/operator/publish",["rxjs/Subject","rxjs/operator/multicast"],!0,function(require,e,t){function r(){return n.multicast.call(this,new o.Subject)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/Subject"),n=require("rxjs/operator/multicast");return e.publish=r,i.define=s,t.exports}),System.register("rxjs/util/ObjectUnsubscribedError",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=function(e){function t(){e.call(this,"object unsubscribed"),this.name="ObjectUnsubscribedError"}return s(t,e),t}(Error);return e.ObjectUnsubscribedError=o,r.define=i,t.exports}),System.register("rxjs/subject/ReplaySubject",["rxjs/Subject","rxjs/scheduler/queue"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subject"),n=require("rxjs/scheduler/queue"),a=function(e){function t(t,r,i){void 0===t&&(t=Number.POSITIVE_INFINITY),void 0===r&&(r=Number.POSITIVE_INFINITY),e.call(this),this.events=[],this.bufferSize=1>t?1:t,this._windowTime=1>r?1:r,this.scheduler=i}return s(t,e),t.prototype._next=function(t){var r=this._getNow();this.events.push(new u(r,t)),this._trimBufferThenGetEvents(r),e.prototype._next.call(this,t)},t.prototype._subscribe=function(t){for(var r=this._trimBufferThenGetEvents(this._getNow()),i=-1,s=r.length;!t.isUnsubscribed&&++i<s;)t.next(r[i].value);return e.prototype._subscribe.call(this,t)},t.prototype._getNow=function(){return(this.scheduler||n.queue).now()},t.prototype._trimBufferThenGetEvents=function(e){for(var t=this.bufferSize,r=this._windowTime,i=this.events,s=i.length,o=0;s>o&&!(e-i[o].time<r);)o+=1;return s>t&&(o=Math.max(o,s-t)),o>0&&i.splice(0,o),i},t}(o.Subject);e.ReplaySubject=a;var u=function(){function e(e,t){this.time=e,this.value=t}return e}();return r.define=i,t.exports}),System.register("rxjs/operator/publishLast",["rxjs/subject/AsyncSubject","rxjs/operator/multicast"],!0,function(require,e,t){function r(){return n.multicast.call(this,new o.AsyncSubject)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/subject/AsyncSubject"),n=require("rxjs/operator/multicast");return e.publishLast=r,i.define=s,t.exports}),System.register("rxjs/operator/reduce-support",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscriber"),n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=function(){function e(e,t){this.project=e,this.seed=t}return e.prototype.call=function(e){return new c(e,this.project,this.seed)},e}();e.ReduceOperator=u;var c=function(e){function t(t,r,i){e.call(this,t),this.hasValue=!1,this.acc=i,this.project=r,this.hasSeed="undefined"!=typeof i}return s(t,e),t.prototype._next=function(e){if(this.hasValue||(this.hasValue=this.hasSeed)){var t=n.tryCatch(this.project).call(this,this.acc,e);t===a.errorObject?this.destination.error(a.errorObject.e):this.acc=t}else this.acc=e,this.hasValue=!0},t.prototype._complete=function(){(this.hasValue||this.hasSeed)&&this.destination.next(this.acc),this.destination.complete()},t}(o.Subscriber);return e.ReduceSubscriber=c,r.define=i,t.exports}),System.register("rxjs/operator/repeat",["rxjs/Subscriber","rxjs/observable/empty"],!0,function(require,e,t){function r(e){return void 0===e&&(e=-1),0===e?new a.EmptyObservable:this.lift(new u(e,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/observable/empty");e.repeat=r;var u=function(){function e(e,t){this.count=e,this.source=t}return e.prototype.call=function(e){return new c(e,this.count,this.source)},e}(),c=function(e){function t(t,r,i){e.call(this),this.destination=t,this.count=r,this.source=i,t.add(this),this.lastSubscription=this}return o(t,e),t.prototype._next=function(e){this.destination.next(e)},t.prototype._error=function(e){this.destination.error(e)},t.prototype.complete=function(){this.isUnsubscribed||this.resubscribe(this.count)},t.prototype.unsubscribe=function(){var t=this.lastSubscription;t===this?e.prototype.unsubscribe.call(this):t.unsubscribe()},t.prototype.resubscribe=function(e){var t=this,r=t.destination,i=t.lastSubscription;if(r.remove(i),i.unsubscribe(),e-1===0)r.complete();else{var s=new l(this,e-1);this.lastSubscription=this.source.subscribe(s),r.add(this.lastSubscription)}},t}(n.Subscriber),l=function(e){function t(t,r){e.call(this),this.parent=t,this.count=r}return o(t,e),t.prototype._next=function(e){this.parent.destination.next(e)},t.prototype._error=function(e){this.parent.destination.error(e)},t.prototype._complete=function(){var e=this.count;this.parent.resubscribe(0>e?-1:e)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/retry",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return void 0===e&&(e=0),this.lift(new a(e,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.retry=r;var a=function(){function e(e,t){this.count=e,this.source=t}return e.prototype.call=function(e){return new u(e,this.count,this.source)},e}(),u=function(e){function t(t,r,i){e.call(this),this.destination=t,this.count=r,this.source=i,t.add(this),this.lastSubscription=this}return o(t,e),t.prototype._next=function(e){this.destination.next(e)},t.prototype.error=function(e){this.isUnsubscribed||(this.unsubscribe(),this.resubscribe())},t.prototype._complete=function(){this.unsubscribe(),this.destination.complete()},t.prototype.resubscribe=function(e){void 0===e&&(e=0);var t=this,r=t.lastSubscription,i=t.destination;i.remove(r),r.unsubscribe();var s=new c(this,this.count,e+1);this.lastSubscription=this.source.subscribe(s),i.add(this.lastSubscription)},t}(n.Subscriber),c=function(e){function t(t,r,i){void 0===i&&(i=0),e.call(this,null),this.parent=t,this.count=r,this.retried=i}return o(t,e),t.prototype._next=function(e){this.parent.destination.next(e)},t.prototype._error=function(e){var t=this.parent,r=this.retried,i=this.count;i&&r===i?t.destination.error(e):t.resubscribe(r)},t.prototype._complete=function(){this.parent.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/retryWhen",["rxjs/Subscriber","rxjs/Subject","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new l(e,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subject"),u=require("rxjs/util/tryCatch"),c=require("rxjs/util/errorObject");e.retryWhen=r;var l=function(){function e(e,t){this.notifier=e,this.source=t}return e.prototype.call=function(e){return new p(e,this.notifier,this.source)},e}(),p=function(e){function t(t,r,i){e.call(this),this.destination=t,this.notifier=r,this.source=i,t.add(this),this.lastSubscription=this}return o(t,e),t.prototype._next=function(e){this.destination.next(e)},t.prototype.error=function(t){var r=this.destination;if(!this.isUnsubscribed){if(e.prototype.unsubscribe.call(this),!this.retryNotifications){this.errors=new a.Subject;var i=u.tryCatch(this.notifier).call(this,this.errors);if(i===c.errorObject)r.error(c.errorObject.e);else{this.retryNotifications=i;var s=new h(this);this.notificationSubscription=i.subscribe(s),r.add(this.notificationSubscription)}}this.errors.next(t)}},t.prototype.destinationError=function(e){this.tearDown(),this.destination.error(e)},t.prototype._complete=function(){this.destinationComplete()},t.prototype.destinationComplete=function(){this.tearDown(),this.destination.complete()},t.prototype.unsubscribe=function(){var t=this.lastSubscription;t===this?e.prototype.unsubscribe.call(this):this.tearDown()},t.prototype.tearDown=function(){e.prototype.unsubscribe.call(this),this.lastSubscription.unsubscribe();var t=this.notificationSubscription;t&&t.unsubscribe()},t.prototype.resubscribe=function(){var e=this,t=e.destination,r=e.lastSubscription;t.remove(r),r.unsubscribe();var i=new b(this);this.lastSubscription=this.source.subscribe(i),t.add(this.lastSubscription)},t}(n.Subscriber),b=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.destination.next(e)},t.prototype._error=function(e){this.parent.errors.next(e)},t.prototype._complete=function(){this.parent.destinationComplete()},t}(n.Subscriber),h=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.resubscribe()},t.prototype._error=function(e){this.parent.destinationError(e)},t.prototype._complete=function(){this.parent.destinationComplete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/sample",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.sample=r;var a=function(){function e(e){this.notifier=e}return e.prototype.call=function(e){return new u(e,this.notifier)},e}(),u=function(e){function t(t,r){e.call(this,t),this.notifier=r,this.hasValue=!1,this.add(r._subscribe(new c(this)))}return o(t,e),t.prototype._next=function(e){this.lastValue=e,this.hasValue=!0},t.prototype.notifyNext=function(){this.hasValue&&(this.hasValue=!1,this.destination.next(this.lastValue))},t}(n.Subscriber),c=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(){this.parent.notifyNext()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.notifyNext()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/sampleTime",["rxjs/Subscriber","rxjs/scheduler/asap"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=u.asap),this.lift(new c(e,t))}function i(e){var t=e.subscriber,r=e.delay;t.notifyNext(),this.schedule(e,r)}var s=System.global,o=s.define;s.define=void 0;var n=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=require("rxjs/Subscriber"),u=require("rxjs/scheduler/asap");e.sampleTime=r;var c=function(){function e(e,t){this.delay=e,this.scheduler=t}return e.prototype.call=function(e){return new l(e,this.delay,this.scheduler)},e}(),l=function(e){function t(t,r,s){e.call(this,t),this.delay=r,this.scheduler=s,this.hasValue=!1,this.add(s.schedule(i,r,{subscriber:this,delay:r}))}return n(t,e),t.prototype._next=function(e){this.lastValue=e,this.hasValue=!0},t.prototype.notifyNext=function(){this.hasValue&&(this.hasValue=!1,this.destination.next(this.lastValue))},t}(a.Subscriber);return s.define=o,t.exports}),System.register("rxjs/operator/scan",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){return this.lift(new c(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.scan=r;var c=function(){function e(e,t){this.accumulator=e,this.seed=t}return e.prototype.call=function(e){return new l(e,this.accumulator,this.seed)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.accumulator=r,this.accumulatorSet=!1,this.seed=i,this.accumulator=r,this.accumulatorSet="undefined"!=typeof i}return o(t,e),Object.defineProperty(t.prototype,"seed",{get:function(){return this._seed},set:function(e){this.accumulatorSet=!0,this._seed=e},enumerable:!0,configurable:!0}),t.prototype._next=function(e){if(this.accumulatorSet){var t=a.tryCatch(this.accumulator).call(this,this.seed,e);t===u.errorObject?this.destination.error(u.errorObject.e):(this.seed=t,this.destination.next(this.seed))}else this.seed=e,this.destination.next(e)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/share",["rxjs/operator/multicast","rxjs/Subject"],!0,function(require,e,t){function r(){return new a.Subject}function i(){return n.multicast.call(this,r).refCount()}var s=System.global,o=s.define;s.define=void 0;var n=require("rxjs/operator/multicast"),a=require("rxjs/Subject");return e.share=i,s.define=o,t.exports}),System.register("rxjs/operator/single",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/util/EmptyError"],!0,function(require,e,t){function r(e){return this.lift(new l(e,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject"),c=require("rxjs/util/EmptyError");e.single=r;var l=function(){function e(e,t){this.predicate=e,this.source=t}return e.prototype.call=function(e){return new p(e,this.predicate,this.source)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.predicate=r,this.source=i,this.seenValue=!1,this.index=0}return o(t,e),t.prototype.applySingleValue=function(e){this.seenValue?this.destination.error("Sequence contains more than one element"):(this.seenValue=!0,this.singleValue=e)},t.prototype._next=function(e){var t=this.predicate,r=this.index++;if(t){var i=a.tryCatch(t)(e,r,this.source);i===u.errorObject?this.destination.error(i.e):i&&this.applySingleValue(e)}else this.applySingleValue(e)},t.prototype._complete=function(){var e=this.destination;this.index>0?(e.next(this.seenValue?this.singleValue:void 0),e.complete()):e.error(new c.EmptyError)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/skip",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.skip=r;var a=function(){function e(e){this.total=e}return e.prototype.call=function(e){return new u(e,this.total)},e}(),u=function(e){function t(t,r){e.call(this,t),this.total=r,this.count=0}return o(t,e),t.prototype._next=function(e){++this.count>this.total&&this.destination.next(e)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/skipUntil",["rxjs/Subscriber"],!0,function(require,e,t){function r(e){return this.lift(new a(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.skipUntil=r;var a=function(){function e(e){this.notifier=e}return e.prototype.call=function(e){return new u(e,this.notifier)},e}(),u=function(e){function t(t,r){e.call(this,t),this.notifier=r,this.notificationSubscriber=null,this.notificationSubscriber=new c(this),this.add(this.notifier.subscribe(this.notificationSubscriber))}return o(t,e),t.prototype._next=function(e){this.notificationSubscriber.hasValue&&this.destination.next(e)},t.prototype._error=function(e){this.destination.error(e)},t.prototype._complete=function(){this.notificationSubscriber.hasCompleted&&this.destination.complete(),this.notificationSubscriber.unsubscribe()},t.prototype.unsubscribe=function(){this._isUnsubscribed||(this._subscription?(this._subscription.unsubscribe(),this._isUnsubscribed=!0):e.prototype.unsubscribe.call(this))},t}(n.Subscriber),c=function(e){function t(t){e.call(this,null),this.parent=t,this.hasValue=!1,this.hasCompleted=!1}return o(t,e),t.prototype._next=function(e){this.hasValue=!0},t.prototype._error=function(e){this.parent.error(e),this.hasValue=!0},t.prototype._complete=function(){this.hasCompleted=!0},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/skipWhile",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new c(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.skipWhile=r;var c=function(){function e(e){this.predicate=e}return e.prototype.call=function(e){return new l(e,this.predicate)},e}(),l=function(e){function t(t,r){e.call(this,t),this.predicate=r,this.skipping=!0,this.index=0}return o(t,e),t.prototype._next=function(e){var t=this.destination;if(this.skipping===!0){var r=this.index++,i=a.tryCatch(this.predicate)(e,r);i===u.errorObject?t.error(i.e):this.skipping=Boolean(i)}this.skipping===!1&&t.next(e)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/startWith",["rxjs/observable/fromArray","rxjs/observable/ScalarObservable","rxjs/observable/empty","rxjs/operator/concat-static","rxjs/util/isScheduler"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=e[e.length-1];c.isScheduler(r)?e.pop():r=void 0;var i=e.length;return 1===i?u.concat(new n.ScalarObservable(e[0],r),this):i>1?u.concat(new o.ArrayObservable(e,r),this):u.concat(new a.EmptyObservable(r),this)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/fromArray"),n=require("rxjs/observable/ScalarObservable"),a=require("rxjs/observable/empty"),u=require("rxjs/operator/concat-static"),c=require("rxjs/util/isScheduler");return e.startWith=r,i.define=s,t.exports}),System.register("rxjs/observable/SubscribeOnObservable",["rxjs/Observable","rxjs/scheduler/asap","rxjs/util/isNumeric"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/scheduler/asap"),a=require("rxjs/util/isNumeric"),u=function(e){function t(t,r,i){void 0===r&&(r=0),void 0===i&&(i=n.asap),e.call(this),this.source=t,this.delayTime=r,
+this.scheduler=i,(!a.isNumeric(r)||0>r)&&(this.delayTime=0),i&&"function"==typeof i.schedule||(this.scheduler=n.asap)}return s(t,e),t.create=function(e,r,i){return void 0===r&&(r=0),void 0===i&&(i=n.asap),new t(e,r,i)},t.dispatch=function(e){var t=e.source,r=e.subscriber;return t.subscribe(r)},t.prototype._subscribe=function(e){var r=this.delayTime,i=this.source,s=this.scheduler;e.add(s.schedule(t.dispatch,r,{source:i,subscriber:e}))},t}(o.Observable);return e.SubscribeOnObservable=u,r.define=i,t.exports}),System.register("rxjs/operator/switch",["rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){function r(){return this.lift(new u)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/OuterSubscriber"),a=require("rxjs/util/subscribeToResult");e._switch=r;var u=function(){function e(){}return e.prototype.call=function(e){return new c(e)},e}(),c=function(e){function t(t){e.call(this,t),this.active=0,this.hasCompleted=!1}return o(t,e),t.prototype._next=function(e){this.unsubscribeInner(),this.active++,this.add(this.innerSubscription=a.subscribeToResult(this,e))},t.prototype._complete=function(){this.hasCompleted=!0,0===this.active&&this.destination.complete()},t.prototype.unsubscribeInner=function(){this.active=this.active>0?this.active-1:0;var e=this.innerSubscription;e&&(e.unsubscribe(),this.remove(e))},t.prototype.notifyNext=function(e,t){this.destination.next(t)},t.prototype.notifyError=function(e){this.destination.error(e)},t.prototype.notifyComplete=function(){this.unsubscribeInner(),this.hasCompleted&&0===this.active&&this.destination.complete()},t}(n.OuterSubscriber);return i.define=s,t.exports}),System.register("rxjs/operator/switchMap",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){function r(e,t){return this.lift(new l(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/OuterSubscriber"),c=require("rxjs/util/subscribeToResult");e.switchMap=r;var l=function(){function e(e,t){this.project=e,this.resultSelector=t}return e.prototype.call=function(e){return new p(e,this.project,this.resultSelector)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.project=r,this.resultSelector=i,this.hasCompleted=!1,this.index=0}return o(t,e),t.prototype._next=function(e){var t=this.index++,r=this.destination,i=n.tryCatch(this.project)(e,t);if(i===a.errorObject)r.error(i.e);else{var s=this.innerSubscription;s&&s.unsubscribe(),this.add(this.innerSubscription=c.subscribeToResult(this,i,e,t))}},t.prototype._complete=function(){var e=this.innerSubscription;this.hasCompleted=!0,(!e||e.isUnsubscribed)&&this.destination.complete()},t.prototype.notifyComplete=function(e){this.remove(e);var t=this.innerSubscription;t&&t.unsubscribe(),this.innerSubscription=null,this.hasCompleted&&this.destination.complete()},t.prototype.notifyError=function(e){this.destination.error(e)},t.prototype.notifyNext=function(e,t,r,i){var s=this,o=s.resultSelector,u=s.destination;if(o){var c=n.tryCatch(o)(e,t,r,i);c===a.errorObject?u.error(a.errorObject.e):u.next(c)}else u.next(t)},t}(u.OuterSubscriber);return i.define=s,t.exports}),System.register("rxjs/operator/switchMapTo",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){function r(e,t){return this.lift(new l(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/OuterSubscriber"),c=require("rxjs/util/subscribeToResult");e.switchMapTo=r;var l=function(){function e(e,t){this.observable=e,this.resultSelector=t}return e.prototype.call=function(e){return new p(e,this.observable,this.resultSelector)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.inner=r,this.resultSelector=i,this.hasCompleted=!1,this.index=0}return o(t,e),t.prototype._next=function(e){var t=this.index++,r=this.innerSubscription;r&&r.unsubscribe(),this.add(this.innerSubscription=c.subscribeToResult(this,this.inner,e,t))},t.prototype._complete=function(){var e=this.innerSubscription;this.hasCompleted=!0,(!e||e.isUnsubscribed)&&this.destination.complete()},t.prototype.notifyComplete=function(e){this.remove(e);var t=this.innerSubscription;t&&t.unsubscribe(),this.innerSubscription=null,this.hasCompleted&&this.destination.complete()},t.prototype.notifyError=function(e){this.destination.error(e)},t.prototype.notifyNext=function(e,t,r,i){var s=this,o=s.resultSelector,u=s.destination;if(o){var c=n.tryCatch(o)(e,t,r,i);c===a.errorObject?u.error(a.errorObject.e):u.next(c)}else u.next(t)},t}(u.OuterSubscriber);return i.define=s,t.exports}),System.register("rxjs/util/ArgumentOutOfRangeError",[],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=function(){function e(){this.name="ArgumentOutOfRangeError",this.message="argument out of range"}return e}();return e.ArgumentOutOfRangeError=s,r.define=i,t.exports}),System.register("rxjs/operator/takeUntil",["rxjs/Subscriber","rxjs/util/noop"],!0,function(require,e,t){function r(e){return this.lift(new u(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/noop");e.takeUntil=r;var u=function(){function e(e){this.notifier=e}return e.prototype.call=function(e){return new c(e,this.notifier)},e}(),c=function(e){function t(t,r){e.call(this,t),this.notifier=r,this.notificationSubscriber=null,this.notificationSubscriber=new l(t),this.add(r.subscribe(this.notificationSubscriber))}return o(t,e),t.prototype._complete=function(){this.destination.complete(),this.notificationSubscriber.unsubscribe()},t}(n.Subscriber),l=function(e){function t(t){e.call(this,null),this.destination=t}return o(t,e),t.prototype._next=function(e){this.destination.complete()},t.prototype._error=function(e){this.destination.error(e)},t.prototype._complete=function(){a.noop()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/takeWhile",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new c(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject");e.takeWhile=r;var c=function(){function e(e){this.predicate=e}return e.prototype.call=function(e){return new l(e,this.predicate)},e}(),l=function(e){function t(t,r){e.call(this,t),this.predicate=r,this.index=0}return o(t,e),t.prototype._next=function(e){var t=this.destination,r=a.tryCatch(this.predicate)(e,this.index++);r==u.errorObject?t.error(r.e):Boolean(r)?t.next(e):t.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/throttle",["rxjs/observable/fromPromise","rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/isPromise","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new p(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/observable/fromPromise"),a=require("rxjs/Subscriber"),u=require("rxjs/util/tryCatch"),c=require("rxjs/util/isPromise"),l=require("rxjs/util/errorObject");e.throttle=r;var p=function(){function e(e){this.durationSelector=e}return e.prototype.call=function(e){return new b(e,this.durationSelector)},e}(),b=function(e){function t(t,r){e.call(this,t),this.durationSelector=r}return o(t,e),t.prototype._next=function(e){if(!this.throttled){var t=this.destination,r=u.tryCatch(this.durationSelector)(e);if(r===l.errorObject)return void t.error(l.errorObject.e);c.isPromise(r)&&(r=n.PromiseObservable.create(r)),this.add(this.throttled=r._subscribe(new h(this))),t.next(e)}},t.prototype._error=function(t){this.clearThrottle(),e.prototype._error.call(this,t)},t.prototype._complete=function(){this.clearThrottle(),e.prototype._complete.call(this)},t.prototype.clearThrottle=function(){var e=this.throttled;e&&(e.unsubscribe(),this.remove(e),this.throttled=null)},t}(a.Subscriber),h=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.clearThrottle()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.clearThrottle()},t}(a.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/throttleTime",["rxjs/Subscriber","rxjs/scheduler/asap"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=u.asap),this.lift(new c(e,t))}function i(e){var t=e.subscriber;t.clearThrottle()}var s=System.global,o=s.define;s.define=void 0;var n=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=require("rxjs/Subscriber"),u=require("rxjs/scheduler/asap");e.throttleTime=r;var c=function(){function e(e,t){this.delay=e,this.scheduler=t}return e.prototype.call=function(e){return new l(e,this.delay,this.scheduler)},e}(),l=function(e){function t(t,r,i){e.call(this,t),this.delay=r,this.scheduler=i}return n(t,e),t.prototype._next=function(e){this.throttled||(this.add(this.throttled=this.scheduler.schedule(i,this.delay,{subscriber:this})),this.destination.next(e))},t.prototype.clearThrottle=function(){var e=this.throttled;e&&(e.unsubscribe(),this.remove(e),this.throttled=null)},t}(a.Subscriber);return s.define=o,t.exports}),System.register("rxjs/operator/timeout",["rxjs/Subscriber","rxjs/scheduler/queue","rxjs/util/isDate"],!0,function(require,e,t){function r(e,t,r){void 0===t&&(t=null),void 0===r&&(r=a.queue);var i=u.isDate(e),s=i?+e-r.now():e;return this.lift(new c(s,i,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/scheduler/queue"),u=require("rxjs/util/isDate");e.timeout=r;var c=function(){function e(e,t,r,i){this.waitFor=e,this.absoluteTimeout=t,this.errorToSend=r,this.scheduler=i}return e.prototype.call=function(e){return new l(e,this.absoluteTimeout,this.waitFor,this.errorToSend,this.scheduler)},e}(),l=function(e){function t(t,r,i,s,o){e.call(this,t),this.absoluteTimeout=r,this.waitFor=i,this.errorToSend=s,this.scheduler=o,this.index=0,this._previousIndex=0,this._hasCompleted=!1,this.scheduleTimeout()}return o(t,e),Object.defineProperty(t.prototype,"previousIndex",{get:function(){return this._previousIndex},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"hasCompleted",{get:function(){return this._hasCompleted},enumerable:!0,configurable:!0}),t.dispatchTimeout=function(e){var t=e.subscriber,r=e.index;t.hasCompleted||t.previousIndex!==r||t.notifyTimeout()},t.prototype.scheduleTimeout=function(){var e=this.index;this.scheduler.schedule(t.dispatchTimeout,this.waitFor,{subscriber:this,index:e}),this.index++,this._previousIndex=e},t.prototype._next=function(e){this.destination.next(e),this.absoluteTimeout||this.scheduleTimeout()},t.prototype._error=function(e){this.destination.error(e),this._hasCompleted=!0},t.prototype._complete=function(){this.destination.complete(),this._hasCompleted=!0},t.prototype.notifyTimeout=function(){this.error(this.errorToSend||new Error("timeout"))},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/timeoutWith",["rxjs/scheduler/queue","rxjs/util/isDate","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){function r(e,t,r){void 0===r&&(r=n.queue);var i=a.isDate(e),s=i?+e-r.now():e;return this.lift(new l(s,i,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/scheduler/queue"),a=require("rxjs/util/isDate"),u=require("rxjs/OuterSubscriber"),c=require("rxjs/util/subscribeToResult");e.timeoutWith=r;var l=function(){function e(e,t,r,i){this.waitFor=e,this.absoluteTimeout=t,this.withObservable=r,this.scheduler=i}return e.prototype.call=function(e){return new p(e,this.absoluteTimeout,this.waitFor,this.withObservable,this.scheduler)},e}(),p=function(e){function t(t,r,i,s,o){e.call(this,null),this.destination=t,this.absoluteTimeout=r,this.waitFor=i,this.withObservable=s,this.scheduler=o,this.timeoutSubscription=void 0,this.index=0,this._previousIndex=0,this._hasCompleted=!1,t.add(this),this.scheduleTimeout()}return o(t,e),Object.defineProperty(t.prototype,"previousIndex",{get:function(){return this._previousIndex},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"hasCompleted",{get:function(){return this._hasCompleted},enumerable:!0,configurable:!0}),t.dispatchTimeout=function(e){var t=e.subscriber,r=e.index;t.hasCompleted||t.previousIndex!==r||t.handleTimeout()},t.prototype.scheduleTimeout=function(){var e=this.index,r={subscriber:this,index:e};this.scheduler.schedule(t.dispatchTimeout,this.waitFor,r),this.index++,this._previousIndex=e},t.prototype._next=function(e){this.destination.next(e),this.absoluteTimeout||this.scheduleTimeout()},t.prototype._error=function(e){this.destination.error(e),this._hasCompleted=!0},t.prototype._complete=function(){this.destination.complete(),this._hasCompleted=!0},t.prototype.handleTimeout=function(){if(!this.isUnsubscribed){var e=this.withObservable;this.unsubscribe(),this.destination.add(this.timeoutSubscription=c.subscribeToResult(this,e))}},t}(u.OuterSubscriber);return i.define=s,t.exports}),System.register("rxjs/operator/toArray",["rxjs/Subscriber"],!0,function(require,e,t){function r(){return this.lift(new a)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber");e.toArray=r;var a=function(){function e(){}return e.prototype.call=function(e){return new u(e)},e}(),u=function(e){function t(t){e.call(this,t),this.array=[]}return o(t,e),t.prototype._next=function(e){this.array.push(e)},t.prototype._complete=function(){this.destination.next(this.array),this.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/toPromise",["rxjs/util/root"],!0,function(require,e,t){function r(e){var t=this;if(e||(o.root.Rx&&o.root.Rx.config&&o.root.Rx.config.Promise?e=o.root.Rx.config.Promise:o.root.Promise&&(e=o.root.Promise)),!e)throw new Error("no Promise impl found");return new e(function(e,r){var i;t.subscribe(function(e){return i=e},function(e){return r(e)},function(){return e(i)})})}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/util/root");return e.toPromise=r,i.define=s,t.exports}),System.register("rxjs/operator/window",["rxjs/Subscriber","rxjs/Subject"],!0,function(require,e,t){function r(e){return this.lift(new u(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subject");e.window=r;var u=function(){function e(e){this.closingNotifier=e}return e.prototype.call=function(e){return new c(e,this.closingNotifier)},e}(),c=function(e){function t(t,r){e.call(this,t),this.destination=t,this.closingNotifier=r,this.add(r._subscribe(new l(this))),this.openWindow()}return o(t,e),t.prototype._next=function(e){this.window.next(e)},t.prototype._error=function(e){this.window.error(e),this.destination.error(e)},t.prototype._complete=function(){this.window.complete(),this.destination.complete()},t.prototype.openWindow=function(){var e=this.window;e&&e.complete();var t=this.destination,r=this.window=new a.Subject;t.add(r),t.next(r)},t}(n.Subscriber),l=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(){this.parent.openWindow()},t.prototype._error=function(e){this.parent._error(e)},t.prototype._complete=function(){this.parent._complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/windowCount",["rxjs/Subscriber","rxjs/Subject"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=0),this.lift(new u(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subject");e.windowCount=r;var u=function(){function e(e,t){this.windowSize=e,this.startWindowEvery=t}return e.prototype.call=function(e){return new c(e,this.windowSize,this.startWindowEvery)},e}(),c=function(e){function t(t,r,i){e.call(this,t),this.destination=t,this.windowSize=r,this.startWindowEvery=i,this.windows=[new a.Subject],this.count=0;var s=this.windows[0];t.add(s),t.next(s)}return o(t,e),t.prototype._next=function(e){for(var t=this.startWindowEvery>0?this.startWindowEvery:this.windowSize,r=this.destination,i=this.windowSize,s=this.windows,o=s.length,n=0;o>n;n++)s[n].next(e);var u=this.count-i+1;if(u>=0&&u%t===0&&s.shift().complete(),++this.count%t===0){var c=new a.Subject;s.push(c),r.add(c),r.next(c)}},t.prototype._error=function(e){for(var t=this.windows;t.length>0;)t.shift().error(e);this.destination.error(e)},t.prototype._complete=function(){for(var e=this.windows;e.length>0;)e.shift().complete();this.destination.complete()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/windowTime",["rxjs/Subscriber","rxjs/Subject","rxjs/scheduler/asap"],!0,function(require,e,t){function r(e,t,r){return void 0===t&&(t=null),void 0===r&&(r=p.asap),this.lift(new b(e,t,r))}function i(e){var t=e.subscriber,r=e.windowTimeSpan,i=e.window;i&&i.complete(),e.window=t.openWindow(),this.schedule(e,r)}function s(e){var t=e.windowTimeSpan,r=e.subscriber,i=e.scheduler,s=e.windowCreationInterval,n=r.openWindow(),a=this,u={action:a,subscription:null},c={subscriber:r,window:n,context:u};u.subscription=i.schedule(o,t,c),a.add(u.subscription),a.schedule(e,s)}function o(e){var t=e.subscriber,r=e.window,i=e.context;i&&i.action&&i.subscription&&i.action.remove(i.subscription),t.closeWindow(r)}var n=System.global,a=n.define;n.define=void 0;var u=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},c=require("rxjs/Subscriber"),l=require("rxjs/Subject"),p=require("rxjs/scheduler/asap");e.windowTime=r;var b=function(){function e(e,t,r){this.windowTimeSpan=e,this.windowCreationInterval=t,this.scheduler=r}return e.prototype.call=function(e){return new h(e,this.windowTimeSpan,this.windowCreationInterval,this.scheduler)},e}(),h=function(e){function t(t,r,n,a){if(e.call(this,t),this.destination=t,this.windowTimeSpan=r,this.windowCreationInterval=n,this.scheduler=a,this.windows=[],null!==n&&n>=0){var u=this.openWindow(),c={subscriber:this,window:u,context:null},l={windowTimeSpan:r,windowCreationInterval:n,subscriber:this,scheduler:a};this.add(a.schedule(o,r,c)),this.add(a.schedule(s,n,l))}else{var p=this.openWindow(),b={subscriber:this,window:p,windowTimeSpan:r};this.add(a.schedule(i,r,b))}}return u(t,e),t.prototype._next=function(e){for(var t=this.windows,r=t.length,i=0;r>i;i++)t[i].next(e)},t.prototype._error=function(e){for(var t=this.windows;t.length>0;)t.shift().error(e);this.destination.error(e)},t.prototype._complete=function(){for(var e=this.windows;e.length>0;)e.shift().complete();this.destination.complete()},t.prototype.openWindow=function(){var e=new l.Subject;this.windows.push(e);var t=this.destination;return t.add(e),t.next(e),e},t.prototype.closeWindow=function(e){e.complete();var t=this.windows;t.splice(t.indexOf(e),1)},t}(c.Subscriber);return n.define=a,t.exports}),System.register("rxjs/operator/windowToggle",["rxjs/Subscriber","rxjs/Subject","rxjs/Subscription","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t){return this.lift(new p(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subject"),u=require("rxjs/Subscription"),c=require("rxjs/util/tryCatch"),l=require("rxjs/util/errorObject");e.windowToggle=r;var p=function(){function e(e,t){this.openings=e,this.closingSelector=t}return e.prototype.call=function(e){return new b(e,this.openings,this.closingSelector)},e}(),b=function(e){function t(t,r,i){e.call(this,t),this.destination=t,this.openings=r,this.closingSelector=i,this.contexts=[],this.add(this.openings._subscribe(new f(this)))}return o(t,e),t.prototype._next=function(e){for(var t=this.contexts,r=t.length,i=0;r>i;i++)t[i].window.next(e)},t.prototype._error=function(e){for(var t=this.contexts;t.length>0;)t.shift().window.error(e);this.destination.error(e)},t.prototype._complete=function(){for(var e=this.contexts;e.length>0;){var t=e.shift();t.window.complete(),t.subscription.unsubscribe()}this.destination.complete()},t.prototype.openWindow=function(e){var t=this.closingSelector,r=c.tryCatch(t)(e);if(r===l.errorObject)this.error(r.e);else{var i=this.destination,s=new a.Subject,o=new u.Subscription,n={window:s,subscription:o};this.contexts.push(n);var p=new h(this,n),b=r._subscribe(p);o.add(b),i.add(o),i.add(s),i.next(s)}},t.prototype.closeWindow=function(e){var t=e.window,r=e.subscription,i=this.contexts,s=this.destination;i.splice(i.indexOf(e),1),t.complete(),s.remove(r),s.remove(t),r.unsubscribe()},t}(n.Subscriber),h=function(e){function t(t,r){e.call(this,null),this.parent=t,this.windowContext=r}return o(t,e),t.prototype._next=function(){this.parent.closeWindow(this.windowContext)},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.closeWindow(this.windowContext)},t}(n.Subscriber),f=function(e){function t(t){e.call(this),this.parent=t}return o(t,e),t.prototype._next=function(e){this.parent.openWindow(e)},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/windowWhen",["rxjs/Subscriber","rxjs/Subject","rxjs/Subscription","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e){return this.lift(new p(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/Subject"),u=require("rxjs/Subscription"),c=require("rxjs/util/tryCatch"),l=require("rxjs/util/errorObject");e.windowWhen=r;var p=function(){function e(e){this.closingSelector=e}return e.prototype.call=function(e){return new b(e,this.closingSelector)},e}(),b=function(e){function t(t,r){e.call(this,t),this.destination=t,this.closingSelector=r,this.openWindow()}return o(t,e),t.prototype._next=function(e){this.window.next(e)},t.prototype._error=function(e){this.window.error(e),this.destination.error(e),this._unsubscribeClosingNotification()},t.prototype._complete=function(){this.window.complete(),this.destination.complete(),this._unsubscribeClosingNotification()},t.prototype.unsubscribe=function(){e.prototype.unsubscribe.call(this),this._unsubscribeClosingNotification()},t.prototype._unsubscribeClosingNotification=function(){var e=this.closingNotification;e&&e.unsubscribe()},t.prototype.openWindow=function(){var e=this.closingNotification;e&&(this.remove(e),e.unsubscribe());var t=this.window;t&&t.complete();var r=this.window=new a.Subject;this.destination.next(r);var i=c.tryCatch(this.closingSelector)();if(i===l.errorObject){var s=i.e;this.destination.error(s),this.window.error(s)}else{var o=this.closingNotification=new u.Subscription;o.add(i._subscribe(new h(this))),this.add(o),this.add(r)}},t}(n.Subscriber),h=function(e){function t(t){e.call(this,null),this.parent=t}return o(t,e),t.prototype._next=function(){this.parent.openWindow()},t.prototype._error=function(e){this.parent.error(e)},t.prototype._complete=function(){this.parent.openWindow()},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/withLatestFrom",["rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/OuterSubscriber","rxjs/util/subscribeToResult"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r;"function"==typeof e[e.length-1]&&(r=e.pop());var i=e;return this.lift(new l(i,r))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/OuterSubscriber"),c=require("rxjs/util/subscribeToResult");e.withLatestFrom=r;var l=function(){function e(e,t){this.observables=e,this.project=t}return e.prototype.call=function(e){return new p(e,this.observables,this.project)},e}(),p=function(e){function t(t,r,i){e.call(this,t),this.observables=r,this.project=i,this.toRespond=[];var s=r.length;this.values=new Array(s);for(var o=0;s>o;o++)this.toRespond.push(o);for(var o=0;s>o;o++){var n=r[o];this.add(c.subscribeToResult(this,n,n,o))}}return o(t,e),t.prototype.notifyNext=function(e,t,r,i){this.values[r]=t;var s=this.toRespond;if(s.length>0){var o=s.indexOf(r);-1!==o&&s.splice(o,1)}},t.prototype.notifyComplete=function(){},t.prototype._next=function(e){if(0===this.toRespond.length){var t=this.values,r=this.destination,i=this.project,s=[e].concat(t);if(i){var o=n.tryCatch(this.project).apply(this,s);o===a.errorObject?r.error(o.e):r.next(o)}else 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t(t,r,i){e.call(this,t),this.index=r,this.context=i,this._value=null}return n(t,e),t.prototype._next=function(e){this._value=e},t.prototype._complete=function(){var e=this.destination;null==this._value&&e.complete();var t=this.context;t.completed++,t.values[this.index]=this._value;var i=t.values;if(t.completed===i.length){if(i.every(r)){var s=t.selector?t.selector.apply(this,i):i;e.next(s)}e.complete()}},t}(u.Subscriber);return s.define=o,t.exports}),System.register("rxjs/operator/observeOn-support",["rxjs/Subscriber","rxjs/Notification"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subscriber"),n=require("rxjs/Notification"),a=function(){function e(e,t){void 0===t&&(t=0),this.scheduler=e,this.delay=t}return e.prototype.call=function(e){return new 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s(t,e),t.prototype.schedule=function(e){var t=this;if(this.isUnsubscribed)return this;this.state=e;var r=this.scheduler;return r.actions.push(this),r.scheduled||(r.scheduled=!0,this.id=o.Immediate.setImmediate(function(){t.id=null,t.scheduler.scheduled=!1,t.scheduler.flush()})),this},t.prototype.unsubscribe=function(){var t=this.id,r=this.scheduler;e.prototype.unsubscribe.call(this),0===r.actions.length&&(r.active=!1,r.scheduled=!1),t&&(this.id=null,o.Immediate.clearImmediate(t))},t}(n.QueueAction);return e.AsapAction=a,r.define=i,t.exports}),System.register("rxjs/add/observable/never",["rxjs/Observable","rxjs/observable/never"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/never");return s.Observable.never=o.InfiniteObservable.create,r.define=i,t.exports}),System.register("rxjs/add/observable/range",["rxjs/Observable","rxjs/observable/range"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/range");return s.Observable.range=o.RangeObservable.create,r.define=i,t.exports}),System.register("rxjs/observable/timer",["rxjs/util/isNumeric","rxjs/Observable","rxjs/scheduler/asap","rxjs/util/isScheduler","rxjs/util/isDate"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/isNumeric"),n=require("rxjs/Observable"),a=require("rxjs/scheduler/asap"),u=require("rxjs/util/isScheduler"),c=require("rxjs/util/isDate"),l=function(e){function t(t,r,i){void 0===t&&(t=0),e.call(this),this.period=r,this.scheduler=i,this.dueTime=0,o.isNumeric(r)?this._period=Number(r)<1&&1||Number(r):u.isScheduler(r)&&(i=r),u.isScheduler(i)||(i=a.asap),this.scheduler=i;var s=c.isDate(t);this.dueTime=s?+t-this.scheduler.now():t}return s(t,e),t.create=function(e,r,i){return void 0===e&&(e=0),new t(e,r,i)},t.dispatch=function(e){var r=e.index,i=e.period,s=e.subscriber,o=this;return s.next(r),"undefined"==typeof i?void s.complete():void(s.isUnsubscribed||("undefined"==typeof o.delay?o.add(o.scheduler.schedule(t.dispatch,i,{index:r+1,period:i,subscriber:s})):(e.index=r+1,o.schedule(e,i))))},t.prototype._subscribe=function(e){var r=0,i=this._period,s=this.dueTime,o=this.scheduler;e.add(o.schedule(t.dispatch,s,{index:r,period:i,subscriber:e}))},t}(n.Observable);return e.TimerObservable=l,r.define=i,t.exports}),System.register("rxjs/operator/zip-static",["rxjs/observable/fromArray","rxjs/operator/zip-support"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=e[e.length-1];return"function"==typeof r&&e.pop(),new o.ArrayObservable(e).lift(new n.ZipOperator(r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/fromArray"),n=require("rxjs/operator/zip-support");return e.zip=r,i.define=s,t.exports}),System.register("rxjs/add/operator/buffer",["rxjs/Observable","rxjs/operator/buffer"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/buffer");return s.Observable.prototype.buffer=o.buffer,r.define=i,t.exports}),System.register("rxjs/add/operator/bufferCount",["rxjs/Observable","rxjs/operator/bufferCount"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/bufferCount");return s.Observable.prototype.bufferCount=o.bufferCount,r.define=i,t.exports}),System.register("rxjs/add/operator/bufferTime",["rxjs/Observable","rxjs/operator/bufferTime"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/bufferTime");return s.Observable.prototype.bufferTime=o.bufferTime,r.define=i,t.exports}),System.register("rxjs/add/operator/bufferToggle",["rxjs/Observable","rxjs/operator/bufferToggle"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/bufferToggle");return s.Observable.prototype.bufferToggle=o.bufferToggle,r.define=i,t.exports}),System.register("rxjs/add/operator/bufferWhen",["rxjs/Observable","rxjs/operator/bufferWhen"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/bufferWhen");return s.Observable.prototype.bufferWhen=o.bufferWhen,r.define=i,t.exports}),System.register("rxjs/add/operator/catch",["rxjs/Observable","rxjs/operator/catch"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/catch");return s.Observable.prototype["catch"]=o._catch,r.define=i,t.exports}),System.register("rxjs/add/operator/combineAll",["rxjs/Observable","rxjs/operator/combineAll"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/combineAll");return s.Observable.prototype.combineAll=o.combineAll,r.define=i,t.exports}),System.register("rxjs/add/operator/combineLatest",["rxjs/Observable","rxjs/operator/combineLatest"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/combineLatest");return s.Observable.prototype.combineLatest=o.combineLatest,r.define=i,t.exports}),System.register("rxjs/add/operator/concat",["rxjs/Observable","rxjs/operator/concat"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/concat");return s.Observable.prototype.concat=o.concat,r.define=i,t.exports}),System.register("rxjs/add/operator/concatAll",["rxjs/Observable","rxjs/operator/concatAll"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/concatAll");return s.Observable.prototype.concatAll=o.concatAll,r.define=i,t.exports}),System.register("rxjs/operator/concatMap",["rxjs/operator/mergeMap-support"],!0,function(require,e,t){function r(e,t){return this.lift(new o.MergeMapOperator(e,t,1))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeMap-support");return e.concatMap=r,i.define=s,t.exports}),System.register("rxjs/operator/concatMapTo",["rxjs/operator/mergeMapTo-support"],!0,function(require,e,t){function r(e,t){return this.lift(new o.MergeMapToOperator(e,t,1))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/mergeMapTo-support");return e.concatMapTo=r,i.define=s,t.exports}),System.register("rxjs/add/operator/count",["rxjs/Observable","rxjs/operator/count"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/count");return s.Observable.prototype.count=o.count,r.define=i,t.exports}),System.register("rxjs/add/operator/dematerialize",["rxjs/Observable","rxjs/operator/dematerialize"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/dematerialize");return s.Observable.prototype.dematerialize=o.dematerialize,r.define=i,t.exports}),System.register("rxjs/add/operator/debounce",["rxjs/Observable","rxjs/operator/debounce"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/debounce");return s.Observable.prototype.debounce=o.debounce,r.define=i,t.exports}),System.register("rxjs/add/operator/debounceTime",["rxjs/Observable","rxjs/operator/debounceTime"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/debounceTime");return s.Observable.prototype.debounceTime=o.debounceTime,r.define=i,t.exports}),System.register("rxjs/add/operator/defaultIfEmpty",["rxjs/Observable","rxjs/operator/defaultIfEmpty"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/defaultIfEmpty");return s.Observable.prototype.defaultIfEmpty=o.defaultIfEmpty,r.define=i,t.exports}),System.register("rxjs/add/operator/delay",["rxjs/Observable","rxjs/operator/delay"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/delay");return s.Observable.prototype.delay=o.delay,r.define=i,t.exports}),System.register("rxjs/add/operator/distinctUntilChanged",["rxjs/Observable","rxjs/operator/distinctUntilChanged"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/distinctUntilChanged");return s.Observable.prototype.distinctUntilChanged=o.distinctUntilChanged,r.define=i,t.exports}),System.register("rxjs/add/operator/do",["rxjs/Observable","rxjs/operator/do"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/do");return s.Observable.prototype["do"]=o._do,r.define=i,t.exports}),System.register("rxjs/operator/expand",["rxjs/operator/expand-support"],!0,function(require,e,t){function r(e,t,r){return void 0===t&&(t=Number.POSITIVE_INFINITY),void 0===r&&(r=void 0),t=1>(t||0)?Number.POSITIVE_INFINITY:t,this.lift(new o.ExpandOperator(e,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/expand-support");return e.expand=r,i.define=s,t.exports}),System.register("rxjs/add/operator/filter",["rxjs/Observable","rxjs/operator/filter"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/filter");return s.Observable.prototype.filter=o.filter,r.define=i,t.exports}),System.register("rxjs/add/operator/finally",["rxjs/Observable","rxjs/operator/finally"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/finally");return s.Observable.prototype["finally"]=o._finally,r.define=i,t.exports}),System.register("rxjs/operator/first",["rxjs/Subscriber","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/util/EmptyError"],!0,function(require,e,t){function r(e,t,r){return this.lift(new l(e,t,r,this))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/tryCatch"),u=require("rxjs/util/errorObject"),c=require("rxjs/util/EmptyError");e.first=r;var l=function(){function e(e,t,r,i){this.predicate=e,this.resultSelector=t,this.defaultValue=r,this.source=i}return e.prototype.call=function(e){return new p(e,this.predicate,this.resultSelector,this.defaultValue,this.source)},e}(),p=function(e){function t(t,r,i,s,o){e.call(this,t),this.predicate=r,this.resultSelector=i,this.defaultValue=s,this.source=o,this.index=0,this.hasCompleted=!1}return o(t,e),t.prototype._next=function(e){var t=this,r=t.destination,i=t.predicate,s=t.resultSelector,o=this.index++,n=!0;if(i&&(n=a.tryCatch(i)(e,o,this.source),n===u.errorObject))return void r.error(u.errorObject.e);if(n){if(s){var 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s.Observable.prototype.ignoreElements=o.ignoreElements,r.define=i,t.exports}),System.register("rxjs/add/operator/every",["rxjs/Observable","rxjs/operator/every"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/every");return s.Observable.prototype.every=o.every,r.define=i,t.exports}),System.register("rxjs/add/operator/last",["rxjs/Observable","rxjs/operator/last"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/last");return s.Observable.prototype.last=o.last,r.define=i,t.exports}),System.register("rxjs/add/operator/map",["rxjs/Observable","rxjs/operator/map"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/map");return s.Observable.prototype.map=o.map,r.define=i,t.exports}),System.register("rxjs/add/operator/mapTo",["rxjs/Observable","rxjs/operator/mapTo"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/mapTo");return s.Observable.prototype.mapTo=o.mapTo,r.define=i,t.exports}),System.register("rxjs/add/operator/materialize",["rxjs/Observable","rxjs/operator/materialize"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/materialize");return s.Observable.prototype.materialize=o.materialize,r.define=i,t.exports}),System.register("rxjs/add/operator/merge",["rxjs/Observable","rxjs/operator/merge"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/merge");return s.Observable.prototype.merge=o.merge,r.define=i,t.exports}),System.register("rxjs/add/operator/mergeAll",["rxjs/Observable","rxjs/operator/mergeAll"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/mergeAll");return s.Observable.prototype.mergeAll=o.mergeAll,r.define=i,t.exports}),System.register("rxjs/add/operator/mergeMap",["rxjs/Observable","rxjs/operator/mergeMap"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/mergeMap");return s.Observable.prototype.mergeMap=o.mergeMap,s.Observable.prototype.flatMap=o.mergeMap,r.define=i,t.exports}),System.register("rxjs/add/operator/mergeMapTo",["rxjs/Observable","rxjs/operator/mergeMapTo"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/mergeMapTo");return s.Observable.prototype.mergeMapTo=o.mergeMapTo,r.define=i,t.exports}),System.register("rxjs/operator/multicast",["rxjs/observable/ConnectableObservable"],!0,function(require,e,t){function r(e){var t;return t="function"==typeof e?e:function(){return e},new o.ConnectableObservable(this,t)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/ConnectableObservable");return e.multicast=r,i.define=s,t.exports}),System.register("rxjs/add/operator/observeOn",["rxjs/Observable","rxjs/operator/observeOn"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/observeOn");return s.Observable.prototype.observeOn=o.observeOn,r.define=i,t.exports}),System.register("rxjs/operator/partition",["rxjs/util/not","rxjs/operator/filter"],!0,function(require,e,t){function r(e,t){return[n.filter.call(this,e),n.filter.call(this,o.not(e,t))]}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/util/not"),n=require("rxjs/operator/filter");return e.partition=r,i.define=s,t.exports}),System.register("rxjs/add/operator/publish",["rxjs/Observable","rxjs/operator/publish"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/publish");return s.Observable.prototype.publish=o.publish,r.define=i,t.exports}),System.register("rxjs/subject/BehaviorSubject",["rxjs/Subject","rxjs/util/throwError","rxjs/util/ObjectUnsubscribedError"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Subject"),n=require("rxjs/util/throwError"),a=require("rxjs/util/ObjectUnsubscribedError"),u=function(e){function t(t){e.call(this),this._value=t,this._hasError=!1}return s(t,e),t.prototype.getValue=function(){if(this._hasError)n.throwError(this._err);else{if(!this.isUnsubscribed)return this._value;n.throwError(new a.ObjectUnsubscribedError)}},Object.defineProperty(t.prototype,"value",{get:function(){return this.getValue()},enumerable:!0,configurable:!0}),t.prototype._subscribe=function(t){var r=e.prototype._subscribe.call(this,t);if(r)return r.isUnsubscribed||t.next(this._value),r},t.prototype._next=function(t){e.prototype._next.call(this,this._value=t)},t.prototype._error=function(t){this._hasError=!0,e.prototype._error.call(this,this._err=t)},t}(o.Subject);return e.BehaviorSubject=u,r.define=i,t.exports}),System.register("rxjs/operator/publishReplay",["rxjs/subject/ReplaySubject","rxjs/operator/multicast"],!0,function(require,e,t){function r(e,t,r){return void 0===e&&(e=Number.POSITIVE_INFINITY),void 0===t&&(t=Number.POSITIVE_INFINITY),n.multicast.call(this,new o.ReplaySubject(e,t,r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/subject/ReplaySubject"),n=require("rxjs/operator/multicast");return e.publishReplay=r,i.define=s,t.exports}),System.register("rxjs/add/operator/publishLast",["rxjs/Observable","rxjs/operator/publishLast"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/publishLast");return s.Observable.prototype.publishLast=o.publishLast,r.define=i,t.exports}),System.register("rxjs/operator/reduce",["rxjs/operator/reduce-support"],!0,function(require,e,t){function r(e,t){return this.lift(new o.ReduceOperator(e,t))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/reduce-support");return e.reduce=r,i.define=s,t.exports}),System.register("rxjs/add/operator/repeat",["rxjs/Observable","rxjs/operator/repeat"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/repeat");return s.Observable.prototype.repeat=o.repeat,r.define=i,t.exports}),System.register("rxjs/add/operator/retry",["rxjs/Observable","rxjs/operator/retry"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/retry");return s.Observable.prototype.retry=o.retry,r.define=i,t.exports}),System.register("rxjs/add/operator/retryWhen",["rxjs/Observable","rxjs/operator/retryWhen"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/retryWhen");return s.Observable.prototype.retryWhen=o.retryWhen,r.define=i,t.exports}),System.register("rxjs/add/operator/sample",["rxjs/Observable","rxjs/operator/sample"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/sample");return s.Observable.prototype.sample=o.sample,r.define=i,t.exports}),System.register("rxjs/add/operator/sampleTime",["rxjs/Observable","rxjs/operator/sampleTime"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/sampleTime");return s.Observable.prototype.sampleTime=o.sampleTime,r.define=i,t.exports}),System.register("rxjs/add/operator/scan",["rxjs/Observable","rxjs/operator/scan"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/scan");return s.Observable.prototype.scan=o.scan,r.define=i,t.exports}),System.register("rxjs/add/operator/share",["rxjs/Observable","rxjs/operator/share"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/share");return s.Observable.prototype.share=o.share,r.define=i,t.exports}),System.register("rxjs/add/operator/single",["rxjs/Observable","rxjs/operator/single"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/single");return s.Observable.prototype.single=o.single,r.define=i,t.exports}),System.register("rxjs/add/operator/skip",["rxjs/Observable","rxjs/operator/skip"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/skip");return s.Observable.prototype.skip=o.skip,r.define=i,t.exports}),System.register("rxjs/add/operator/skipUntil",["rxjs/Observable","rxjs/operator/skipUntil"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/skipUntil");return s.Observable.prototype.skipUntil=o.skipUntil,r.define=i,t.exports}),System.register("rxjs/add/operator/skipWhile",["rxjs/Observable","rxjs/operator/skipWhile"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/skipWhile");return s.Observable.prototype.skipWhile=o.skipWhile,r.define=i,t.exports}),System.register("rxjs/add/operator/startWith",["rxjs/Observable","rxjs/operator/startWith"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/startWith");return s.Observable.prototype.startWith=o.startWith,r.define=i,t.exports}),System.register("rxjs/operator/subscribeOn",["rxjs/observable/SubscribeOnObservable"],!0,function(require,e,t){function r(e,t){return void 0===t&&(t=0),new o.SubscribeOnObservable(this,t,e)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/SubscribeOnObservable");return e.subscribeOn=r,i.define=s,t.exports}),System.register("rxjs/add/operator/switch",["rxjs/Observable","rxjs/operator/switch"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/switch");return s.Observable.prototype["switch"]=o._switch,r.define=i,t.exports}),System.register("rxjs/add/operator/switchMap",["rxjs/Observable","rxjs/operator/switchMap"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/switchMap");return s.Observable.prototype.switchMap=o.switchMap,r.define=i,t.exports}),System.register("rxjs/add/operator/switchMapTo",["rxjs/Observable","rxjs/operator/switchMapTo"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/switchMapTo");return s.Observable.prototype.switchMapTo=o.switchMapTo,r.define=i,t.exports}),System.register("rxjs/operator/take",["rxjs/Subscriber","rxjs/util/ArgumentOutOfRangeError","rxjs/observable/empty"],!0,function(require,e,t){function r(e){return 0===e?new u.EmptyObservable:this.lift(new c(e))}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},n=require("rxjs/Subscriber"),a=require("rxjs/util/ArgumentOutOfRangeError"),u=require("rxjs/observable/empty");e.take=r;var c=function(){function e(e){if(this.total=e,this.total<0)throw new a.ArgumentOutOfRangeError}return e.prototype.call=function(e){return new l(e,this.total)},e}(),l=function(e){function t(t,r){e.call(this,t),this.total=r,this.count=0}return o(t,e),t.prototype._next=function(e){var t=this.total;++this.count<=t&&(this.destination.next(e),this.count===t&&this.destination.complete())},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/add/operator/takeUntil",["rxjs/Observable","rxjs/operator/takeUntil"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/takeUntil");return s.Observable.prototype.takeUntil=o.takeUntil,r.define=i,t.exports}),System.register("rxjs/add/operator/takeWhile",["rxjs/Observable","rxjs/operator/takeWhile"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/takeWhile");return s.Observable.prototype.takeWhile=o.takeWhile,r.define=i,t.exports;
+}),System.register("rxjs/add/operator/throttle",["rxjs/Observable","rxjs/operator/throttle"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/throttle");return s.Observable.prototype.throttle=o.throttle,r.define=i,t.exports}),System.register("rxjs/add/operator/throttleTime",["rxjs/Observable","rxjs/operator/throttleTime"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/throttleTime");return s.Observable.prototype.throttleTime=o.throttleTime,r.define=i,t.exports}),System.register("rxjs/add/operator/timeout",["rxjs/Observable","rxjs/operator/timeout"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/timeout");return s.Observable.prototype.timeout=o.timeout,r.define=i,t.exports}),System.register("rxjs/add/operator/timeoutWith",["rxjs/Observable","rxjs/operator/timeoutWith"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/timeoutWith");return s.Observable.prototype.timeoutWith=o.timeoutWith,r.define=i,t.exports}),System.register("rxjs/add/operator/toArray",["rxjs/Observable","rxjs/operator/toArray"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/toArray");return s.Observable.prototype.toArray=o.toArray,r.define=i,t.exports}),System.register("rxjs/add/operator/toPromise",["rxjs/Observable","rxjs/operator/toPromise"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/toPromise");return s.Observable.prototype.toPromise=o.toPromise,r.define=i,t.exports}),System.register("rxjs/add/operator/window",["rxjs/Observable","rxjs/operator/window"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/window");return s.Observable.prototype.window=o.window,r.define=i,t.exports}),System.register("rxjs/add/operator/windowCount",["rxjs/Observable","rxjs/operator/windowCount"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/windowCount");return s.Observable.prototype.windowCount=o.windowCount,r.define=i,t.exports}),System.register("rxjs/add/operator/windowTime",["rxjs/Observable","rxjs/operator/windowTime"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/windowTime");return s.Observable.prototype.windowTime=o.windowTime,r.define=i,t.exports}),System.register("rxjs/add/operator/windowToggle",["rxjs/Observable","rxjs/operator/windowToggle"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/windowToggle");return s.Observable.prototype.windowToggle=o.windowToggle,r.define=i,t.exports}),System.register("rxjs/add/operator/windowWhen",["rxjs/Observable","rxjs/operator/windowWhen"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/windowWhen");return s.Observable.prototype.windowWhen=o.windowWhen,r.define=i,t.exports}),System.register("rxjs/add/operator/withLatestFrom",["rxjs/Observable","rxjs/operator/withLatestFrom"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/withLatestFrom");return s.Observable.prototype.withLatestFrom=o.withLatestFrom,r.define=i,t.exports}),System.register("rxjs/add/operator/zip",["rxjs/Observable","rxjs/operator/zip"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/zip");return s.Observable.prototype.zip=o.zipProto,r.define=i,t.exports}),System.register("rxjs/add/operator/zipAll",["rxjs/Observable","rxjs/operator/zipAll"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/zipAll");return s.Observable.prototype.zipAll=o.zipAll,r.define=i,t.exports}),System.register("rxjs/symbol/rxSubscriber",["rxjs/util/SymbolShim"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/util/SymbolShim");return e.rxSubscriber=s.SymbolShim["for"]("rxSubscriber"),r.define=i,t.exports}),System.register("rxjs/observable/ScalarObservable",["rxjs/Observable","rxjs/util/tryCatch","rxjs/util/errorObject","rxjs/observable/throw","rxjs/observable/empty"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/util/tryCatch"),a=require("rxjs/util/errorObject"),u=require("rxjs/observable/throw"),c=require("rxjs/observable/empty"),l=function(e){function t(t,r){e.call(this),this.value=t,this.scheduler=r,this._isScalar=!0}return s(t,e),t.create=function(e,r){return new t(e,r)},t.dispatch=function(e){var t=e.done,r=e.value,i=e.subscriber;return t?void i.complete():(i.next(r),void(i.isUnsubscribed||(e.done=!0,this.schedule(e))))},t.prototype._subscribe=function(e){var r=this.value,i=this.scheduler;i?e.add(i.schedule(t.dispatch,0,{done:!1,value:r,subscriber:e})):(e.next(r),e.isUnsubscribed||e.complete())},t}(o.Observable);e.ScalarObservable=l;var p=l.prototype;return p.map=function(e,t){var r=n.tryCatch(e).call(t||this,this.value,0);return r===a.errorObject?new u.ErrorObservable(a.errorObject.e):new l(e.call(t||this,this.value,0))},p.filter=function(e,t){var r=n.tryCatch(e).call(t||this,this.value,0);return r===a.errorObject?new u.ErrorObservable(a.errorObject.e):r?this:new c.EmptyObservable},p.reduce=function(e,t){if("undefined"==typeof t)return this;var r=n.tryCatch(e)(t,this.value);return r===a.errorObject?new u.ErrorObservable(a.errorObject.e):new l(r)},p.scan=function(e,t){return this.reduce(e,t)},p.count=function(e){if(e){var t=n.tryCatch(e).call(this,this.value,0,this);return t===a.errorObject?new 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t(t,r){e.call(this,t),this.project=r,this.active=0,this.values=[],this.observables=[],this.toRespond=[]}return s(t,e),t.prototype._next=function(e){var t=this.toRespond;t.push(t.length),this.observables.push(e)},t.prototype._complete=function(){var e=this.observables,t=e.length;if(0===t)this.destination.complete();else{this.active=t;for(var r=0;t>r;r++){var i=e[r];this.add(u.subscribeToResult(this,i,i,r))}}},t.prototype.notifyComplete=function(e){0===(this.active-=1)&&this.destination.complete()},t.prototype.notifyNext=function(e,t,r,i){var s=this.values;s[r]=t;var a=this.toRespond;if(a.length>0){var u=a.indexOf(r);-1!==u&&a.splice(u,1)}if(0===a.length){var c=this.project,l=this.destination;if(c){var p=o.tryCatch(c).apply(this,s);p===n.errorObject?l.error(n.errorObject.e):l.next(p)}else l.next(s)}},t}(a.OuterSubscriber);return e.CombineLatestSubscriber=l,r.define=i,t.exports}),System.register("rxjs/scheduler/queue",["rxjs/scheduler/QueueScheduler"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/scheduler/QueueScheduler");return e.queue=new s.QueueScheduler,r.define=i,t.exports}),System.register("rxjs/add/observable/bindCallback",["rxjs/Observable","rxjs/observable/bindCallback"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/bindCallback");return s.Observable.bindCallback=o.BoundCallbackObservable.create,r.define=i,t.exports}),System.register("rxjs/add/observable/forkJoin",["rxjs/Observable","rxjs/observable/forkJoin"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/forkJoin");return s.Observable.forkJoin=o.ForkJoinObservable.create,r.define=i,t.exports}),System.register("rxjs/observable/from",["rxjs/observable/fromPromise","rxjs/observable/IteratorObservable","rxjs/observable/fromArray","rxjs/util/SymbolShim","rxjs/Observable","rxjs/operator/observeOn-support","rxjs/scheduler/queue"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/observable/fromPromise"),n=require("rxjs/observable/IteratorObservable"),a=require("rxjs/observable/fromArray"),u=require("rxjs/util/SymbolShim"),c=require("rxjs/Observable"),l=require("rxjs/operator/observeOn-support"),p=require("rxjs/scheduler/queue"),b=Array.isArray,h=function(e){function t(t,r){e.call(this,null),this.ish=t,this.scheduler=r}return s(t,e),t.create=function(e,r){if(void 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s=require("rxjs/Observable"),o=require("rxjs/operator/zip-static");return s.Observable.zip=o.zip,r.define=i,t.exports}),System.register("rxjs/add/operator/concatMap",["rxjs/Observable","rxjs/operator/concatMap"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/concatMap");return s.Observable.prototype.concatMap=o.concatMap,r.define=i,t.exports}),System.register("rxjs/add/operator/concatMapTo",["rxjs/Observable","rxjs/operator/concatMapTo"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/concatMapTo");return s.Observable.prototype.concatMapTo=o.concatMapTo,r.define=i,t.exports}),System.register("rxjs/add/operator/expand",["rxjs/Observable","rxjs/operator/expand"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/expand");return s.Observable.prototype.expand=o.expand,r.define=i,t.exports}),System.register("rxjs/add/operator/first",["rxjs/Observable","rxjs/operator/first"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/first");return s.Observable.prototype.first=o.first,r.define=i,t.exports}),System.register("rxjs/operator/groupBy",["rxjs/Subscriber","rxjs/Observable","rxjs/Subject","rxjs/util/Map","rxjs/util/FastMap","rxjs/operator/groupBy-support","rxjs/util/tryCatch","rxjs/util/errorObject"],!0,function(require,e,t){function r(e,t,r){return new f(this,e,t,r)}var i=System.global,s=i.define;i.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new 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r=this.groups,i=this.elementSelector,s=this.durationSelector;r||(r=this.groups="string"==typeof t?new l.FastMap:new c.Map);var o=r.get(t);if(!o){r.set(t,o=new u.Subject);var n=new p.GroupedObservable(t,o,this.refCountSubscription);if(s){var a=b.tryCatch(s)(new p.GroupedObservable(t,o));a===h.errorObject?this.error(a.e):this.add(a._subscribe(new v(t,o,this)))}this.destination.next(n)}if(i){var f=b.tryCatch(i)(e);f===h.errorObject?this.error(f.e):o.next(f)}else o.next(e)}},t.prototype._error=function(e){var t=this,r=this.groups;r&&r.forEach(function(r,i){r.error(e),t.removeGroup(i)}),this.destination.error(e)},t.prototype._complete=function(){var e=this,t=this.groups;t&&t.forEach(function(t,r){t.complete(),e.removeGroup(t)}),this.destination.complete()},t.prototype.removeGroup=function(e){this.groups["delete"](e)},t}(n.Subscriber),v=function(e){function t(t,r,i){e.call(this,null),this.key=t,this.group=r,this.parent=i}return o(t,e),t.prototype._next=function(e){this.group.complete(),this.parent.removeGroup(this.key)},t.prototype._error=function(e){this.group.error(e),this.parent.removeGroup(this.key)},t.prototype._complete=function(){this.group.complete(),this.parent.removeGroup(this.key)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/add/operator/multicast",["rxjs/Observable","rxjs/operator/multicast"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/multicast");return s.Observable.prototype.multicast=o.multicast,r.define=i,t.exports}),System.register("rxjs/add/operator/partition",["rxjs/Observable","rxjs/operator/partition"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/partition");return s.Observable.prototype.partition=o.partition,r.define=i,t.exports}),System.register("rxjs/operator/publishBehavior",["rxjs/subject/BehaviorSubject","rxjs/operator/multicast"],!0,function(require,e,t){function r(e){return n.multicast.call(this,new o.BehaviorSubject(e))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/subject/BehaviorSubject"),n=require("rxjs/operator/multicast");return e.publishBehavior=r,i.define=s,t.exports}),System.register("rxjs/add/operator/publishReplay",["rxjs/Observable","rxjs/operator/publishReplay"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/publishReplay");return s.Observable.prototype.publishReplay=o.publishReplay,r.define=i,t.exports}),System.register("rxjs/add/operator/reduce",["rxjs/Observable","rxjs/operator/reduce"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/reduce");return s.Observable.prototype.reduce=o.reduce,r.define=i,t.exports}),System.register("rxjs/add/operator/subscribeOn",["rxjs/Observable","rxjs/operator/subscribeOn"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/subscribeOn");return s.Observable.prototype.subscribeOn=o.subscribeOn,r.define=i,t.exports}),System.register("rxjs/add/operator/take",["rxjs/Observable","rxjs/operator/take"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/take");return s.Observable.prototype.take=o.take,r.define=i,t.exports}),System.register("rxjs/Subscriber",["rxjs/util/noop","rxjs/util/throwError","rxjs/util/tryOrOnError","rxjs/Subscription","rxjs/symbol/rxSubscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/noop"),n=require("rxjs/util/throwError"),a=require("rxjs/util/tryOrOnError"),u=require("rxjs/Subscription"),c=require("rxjs/symbol/rxSubscriber"),l=function(e){function t(r){if(e.call(this),this.destination=r,this._isUnsubscribed=!1,this.destination){var i=r._subscription;i?this._subscription=i:r instanceof t&&(this._subscription=r)}}return s(t,e),t.prototype[c.rxSubscriber]=function(){return this},Object.defineProperty(t.prototype,"isUnsubscribed",{get:function(){var e=this._subscription;return e?this._isUnsubscribed||e.isUnsubscribed:this._isUnsubscribed},set:function(e){var t=this._subscription;t?t.isUnsubscribed=Boolean(e):this._isUnsubscribed=Boolean(e)},enumerable:!0,configurable:!0}),t.create=function(e,r,i){var s=new t;return s._next="function"==typeof e&&a.tryOrOnError(e)||o.noop,s._error="function"==typeof r&&r||n.throwError,s._complete="function"==typeof i&&i||o.noop,s},t.prototype.add=function(t){var r=this._subscription;r?r.add(t):e.prototype.add.call(this,t)},t.prototype.remove=function(t){this._subscription?this._subscription.remove(t):e.prototype.remove.call(this,t)},t.prototype.unsubscribe=function(){this._isUnsubscribed||(this._subscription?this._isUnsubscribed=!0:e.prototype.unsubscribe.call(this))},t.prototype._next=function(e){var t=this.destination;t.next&&t.next(e)},t.prototype._error=function(e){var t=this.destination;t.error&&t.error(e)},t.prototype._complete=function(){var e=this.destination;e.complete&&e.complete()},t.prototype.next=function(e){this.isUnsubscribed||this._next(e)},t.prototype.error=function(e){this.isUnsubscribed||(this._error(e),this.unsubscribe())},t.prototype.complete=function(){this.isUnsubscribed||(this._complete(),this.unsubscribe())},t}(u.Subscription);return e.Subscriber=l,r.define=i,t.exports}),System.register("rxjs/observable/fromArray",["rxjs/Observable","rxjs/observable/ScalarObservable","rxjs/observable/empty","rxjs/util/isScheduler"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/observable/ScalarObservable"),a=require("rxjs/observable/empty"),u=require("rxjs/util/isScheduler"),c=function(e){function t(t,r){e.call(this),this.array=t,this.scheduler=r,r||1!==t.length||(this._isScalar=!0,this.value=t[0])}return s(t,e),t.create=function(e,r){return new t(e,r)},t.of=function(){for(var e=[],r=0;r<arguments.length;r++)e[r-0]=arguments[r];var i=e[e.length-1];u.isScheduler(i)?e.pop():i=void 0;var s=e.length;return s>1?new t(e,i):1===s?new n.ScalarObservable(e[0],i):new a.EmptyObservable(i)},t.dispatch=function(e){var t=e.array,r=e.index,i=e.count,s=e.subscriber;return r>=i?void s.complete():(s.next(t[r]),void(s.isUnsubscribed||(e.index=r+1,this.schedule(e))))},t.prototype._subscribe=function(e){var r=0,i=this.array,s=i.length,o=this.scheduler;if(o)e.add(o.schedule(t.dispatch,0,{array:i,index:r,count:s,subscriber:e}));else{for(var n=0;s>n&&!e.isUnsubscribed;n++)e.next(i[n]);e.complete()}},t}(o.Observable);return e.ArrayObservable=c,r.define=i,t.exports}),System.register("rxjs/operator/concat-static",["rxjs/scheduler/queue","rxjs/operator/mergeAll-support","rxjs/observable/fromArray","rxjs/util/isScheduler"],!0,function(require,e,t){function r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=o.queue,i=e;return u.isScheduler(i[e.length-1])&&(r=i.pop()),new a.ArrayObservable(e,r).lift(new n.MergeAllOperator(1))}var i=System.global,s=i.define;i.define=void 0;var 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r(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=null,i=null;return a.isScheduler(e[e.length-1])&&(i=e.pop()),"function"==typeof e[e.length-1]&&(r=e.pop()),1===e.length&&u.isArray(e[0])&&(e=e[0]),new o.ArrayObservable(e,i).lift(new n.CombineLatestOperator(r))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/observable/fromArray"),n=require("rxjs/operator/combineLatest-support"),a=require("rxjs/util/isScheduler"),u=require("rxjs/util/isArray");return e.combineLatest=r,i.define=s,t.exports}),System.register("rxjs/add/operator/concat-static",["rxjs/Observable","rxjs/operator/concat-static"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/concat-static");return s.Observable.concat=o.concat,r.define=i,t.exports}),System.register("rxjs/observable/interval",["rxjs/util/isNumeric","rxjs/Observable","rxjs/scheduler/asap"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/util/isNumeric"),n=require("rxjs/Observable"),a=require("rxjs/scheduler/asap"),u=function(e){function t(t,r){void 0===t&&(t=0),void 0===r&&(r=a.asap),e.call(this),this.period=t,this.scheduler=r,(!o.isNumeric(t)||0>t)&&(this.period=0),r&&"function"==typeof r.schedule||(this.scheduler=a.asap)}return s(t,e),t.create=function(e,r){return void 0===e&&(e=0),void 0===r&&(r=a.asap),new t(e,r)},t.dispatch=function(e){var t=e.index,r=e.subscriber,i=e.period;r.next(t),r.isUnsubscribed||(e.index+=1,this.schedule(e,i))},t.prototype._subscribe=function(e){var r=0,i=this.period,s=this.scheduler;e.add(s.schedule(t.dispatch,i,{index:r,subscriber:e,period:i}))},t}(n.Observable);return e.IntervalObservable=u,r.define=i,t.exports}),System.register("rxjs/Subject",["rxjs/Observable","rxjs/Subscriber","rxjs/Subscription","rxjs/subject/SubjectSubscription","rxjs/symbol/rxSubscriber"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var i in t)t.hasOwnProperty(i)&&(e[i]=t[i]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},o=require("rxjs/Observable"),n=require("rxjs/Subscriber"),a=require("rxjs/Subscription"),u=require("rxjs/subject/SubjectSubscription"),c=require("rxjs/symbol/rxSubscriber"),l=a.Subscription.prototype.add,p=a.Subscription.prototype.remove,b=a.Subscription.prototype.unsubscribe,h=n.Subscriber.prototype.next,f=n.Subscriber.prototype.error,d=n.Subscriber.prototype.complete,v=n.Subscriber.prototype._next,x=n.Subscriber.prototype._error,y=n.Subscriber.prototype._complete,j=function(e){function 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0,b.call(this)},t.prototype.next=function(e){this.isUnsubscribed||(this.dispatching=!0,this._next(e),this.dispatching=!1,this.errorSignal?this.error(this.errorInstance):this.completeSignal&&this.complete())},t.prototype.error=function(e){this.isUnsubscribed||this.completeSignal||(this.errorSignal=!0,this.errorInstance=e,this.dispatching||(this._error(e),this.unsubscribe()))},t.prototype.complete=function(){this.isUnsubscribed||this.errorSignal||(this.completeSignal=!0,this.dispatching||(this._complete(),this.unsubscribe()))},t.prototype._next=function(e){for(var t=-1,r=this.observers.slice(0),i=r.length;++t<i;)r[t].next(e)},t.prototype._error=function(e){var t=-1,r=this.observers,i=r.length;for(this.observers=void 0,this.isUnsubscribed=!0;++t<i;)r[t].error(e);this.isUnsubscribed=!1},t.prototype._complete=function(){var e=-1,t=this.observers,r=t.length;for(this.observers=void 0,this.isUnsubscribed=!0;++e<r;)t[e].complete();this.isUnsubscribed=!1},t}(o.Observable);e.Subject=j;var m=function(e){function t(t,r){e.call(this),this.source=t,this.destination=r}return s(t,e),t.prototype._subscribe=function(e){var t=this.operator;return this.source._subscribe.call(this.source,t?t.call(e):e)},t.prototype.next=function(e){h.call(this,e)},t.prototype.error=function(e){f.call(this,e)},t.prototype.complete=function(){d.call(this)},t.prototype._next=function(e){v.call(this,e)},t.prototype._error=function(e){x.call(this,e)},t.prototype._complete=function(){y.call(this)},t}(j);return r.define=i,t.exports}),System.register("rxjs/add/operator/combineLatest-static",["rxjs/Observable","rxjs/operator/combineLatest-static"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/operator/combineLatest-static");return s.Observable.combineLatest=o.combineLatest,r.define=i,t.exports}),System.register("rxjs/add/observable/interval",["rxjs/Observable","rxjs/observable/interval"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Observable"),o=require("rxjs/observable/interval");return s.Observable.interval=o.IntervalObservable.create,r.define=i,t.exports}),System.register("rxjs/Rx",["rxjs/Subject","rxjs/Observable","rxjs/add/operator/combineLatest-static","rxjs/add/operator/concat-static","rxjs/add/operator/merge-static","rxjs/add/observable/bindCallback","rxjs/add/observable/defer","rxjs/add/observable/empty","rxjs/add/observable/forkJoin","rxjs/add/observable/from","rxjs/add/observable/fromArray","rxjs/add/observable/fromEvent","rxjs/add/observable/fromEventPattern","rxjs/add/observable/fromPromise","rxjs/add/observable/interval","rxjs/add/observable/never","rxjs/add/observable/range","rxjs/add/observable/throw","rxjs/add/observable/timer","rxjs/add/operator/zip-static","rxjs/add/operator/buffer","rxjs/add/operator/bufferCount","rxjs/add/operator/bufferTime","rxjs/add/operator/bufferToggle","rxjs/add/operator/bufferWhen","rxjs/add/operator/catch","rxjs/add/operator/combineAll","rxjs/add/operator/combineLatest","rxjs/add/operator/concat","rxjs/add/operator/concatAll","rxjs/add/operator/concatMap","rxjs/add/operator/concatMapTo","rxjs/add/operator/count","rxjs/add/operator/dematerialize","rxjs/add/operator/debounce","rxjs/add/operator/debounceTime","rxjs/add/operator/defaultIfEmpty","rxjs/add/operator/delay","rxjs/add/operator/distinctUntilChanged","rxjs/add/operator/do","rxjs/add/operator/expand","rxjs/add/operator/filter","rxjs/add/operator/finally","rxjs/add/operator/first","rxjs/add/operator/groupBy","rxjs/add/operator/ignoreElements","rxjs/add/operator/every","rxjs/add/operator/last","rxjs/add/operator/map","rxjs/add/operator/mapTo","rxjs/add/operator/materialize","rxjs/add/operator/merge","rxjs/add/operator/mergeAll","rxjs/add/operator/mergeMap","rxjs/add/operator/mergeMapTo","rxjs/add/operator/multicast","rxjs/add/operator/observeOn","rxjs/add/operator/partition","rxjs/add/operator/publish","rxjs/add/operator/publishBehavior","rxjs/add/operator/publishReplay","rxjs/add/operator/publishLast","rxjs/add/operator/reduce","rxjs/add/operator/repeat","rxjs/add/operator/retry","rxjs/add/operator/retryWhen","rxjs/add/operator/sample","rxjs/add/operator/sampleTime","rxjs/add/operator/scan","rxjs/add/operator/share","rxjs/add/operator/single","rxjs/add/operator/skip","rxjs/add/operator/skipUntil","rxjs/add/operator/skipWhile","rxjs/add/operator/startWith","rxjs/add/operator/subscribeOn","rxjs/add/operator/switch","rxjs/add/operator/switchMap","rxjs/add/operator/switchMapTo","rxjs/add/operator/take","rxjs/add/operator/takeUntil","rxjs/add/operator/takeWhile","rxjs/add/operator/throttle","rxjs/add/operator/throttleTime","rxjs/add/operator/timeout","rxjs/add/operator/timeoutWith","rxjs/add/operator/toArray","rxjs/add/operator/toPromise","rxjs/add/operator/window","rxjs/add/operator/windowCount","rxjs/add/operator/windowTime","rxjs/add/operator/windowToggle","rxjs/add/operator/windowWhen","rxjs/add/operator/withLatestFrom","rxjs/add/operator/zip","rxjs/add/operator/zipAll","rxjs/Subscription","rxjs/Subscriber","rxjs/subject/AsyncSubject","rxjs/subject/ReplaySubject","rxjs/subject/BehaviorSubject","rxjs/observable/ConnectableObservable","rxjs/Notification","rxjs/util/EmptyError","rxjs/util/ArgumentOutOfRangeError","rxjs/util/ObjectUnsubscribedError","rxjs/scheduler/asap","rxjs/scheduler/queue","rxjs/symbol/rxSubscriber"],!0,function(require,e,t){
+var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/Subject");e.Subject=s.Subject;var o=require("rxjs/Observable");e.Observable=o.Observable,require("rxjs/add/operator/combineLatest-static"),require("rxjs/add/operator/concat-static"),require("rxjs/add/operator/merge-static"),require("rxjs/add/observable/bindCallback"),require("rxjs/add/observable/defer"),require("rxjs/add/observable/empty"),require("rxjs/add/observable/forkJoin"),require("rxjs/add/observable/from"),require("rxjs/add/observable/fromArray"),require("rxjs/add/observable/fromEvent"),require("rxjs/add/observable/fromEventPattern"),require("rxjs/add/observable/fromPromise"),require("rxjs/add/observable/interval"),require("rxjs/add/observable/never"),require("rxjs/add/observable/range"),require("rxjs/add/observable/throw"),require("rxjs/add/observable/timer"),require("rxjs/add/operator/zip-static"),require("rxjs/add/operator/buffer"),require("rxjs/add/operator/bufferCount"),require("rxjs/add/operator/bufferTime"),require("rxjs/add/operator/bufferToggle"),require("rxjs/add/operator/bufferWhen"),require("rxjs/add/operator/catch"),require("rxjs/add/operator/combineAll"),require("rxjs/add/operator/combineLatest"),require("rxjs/add/operator/concat"),require("rxjs/add/operator/concatAll"),require("rxjs/add/operator/concatMap"),require("rxjs/add/operator/concatMapTo"),require("rxjs/add/operator/count"),require("rxjs/add/operator/dematerialize"),require("rxjs/add/operator/debounce"),require("rxjs/add/operator/debounceTime"),require("rxjs/add/operator/defaultIfEmpty"),require("rxjs/add/operator/delay"),require("rxjs/add/operator/distinctUntilChanged"),require("rxjs/add/operator/do"),require("rxjs/add/operator/expand"),require("rxjs/add/operator/filter"),require("rxjs/add/operator/finally"),require("rxjs/add/operator/first"),require("rxjs/add/operator/groupBy"),require("rxjs/add/operator/ignoreElements"),require("rxjs/add/operator/every"),require("rxjs/add/operator/last"),require("rxjs/add/operator/map"),require("rxjs/add/operator/mapTo"),require("rxjs/add/operator/materialize"),require("rxjs/add/operator/merge"),require("rxjs/add/operator/mergeAll"),require("rxjs/add/operator/mergeMap"),require("rxjs/add/operator/mergeMapTo"),require("rxjs/add/operator/multicast"),require("rxjs/add/operator/observeOn"),require("rxjs/add/operator/partition"),require("rxjs/add/operator/publish"),require("rxjs/add/operator/publishBehavior"),require("rxjs/add/operator/publishReplay"),require("rxjs/add/operator/publishLast"),require("rxjs/add/operator/reduce"),require("rxjs/add/operator/repeat"),require("rxjs/add/operator/retry"),require("rxjs/add/operator/retryWhen"),require("rxjs/add/operator/sample"),require("rxjs/add/operator/sampleTime"),require("rxjs/add/operator/scan"),require("rxjs/add/operator/share"),require("rxjs/add/operator/single"),require("rxjs/add/operator/skip"),require("rxjs/add/operator/skipUntil"),require("rxjs/add/operator/skipWhile"),require("rxjs/add/operator/startWith"),require("rxjs/add/operator/subscribeOn"),require("rxjs/add/operator/switch"),require("rxjs/add/operator/switchMap"),require("rxjs/add/operator/switchMapTo"),require("rxjs/add/operator/take"),require("rxjs/add/operator/takeUntil"),require("rxjs/add/operator/takeWhile"),require("rxjs/add/operator/throttle"),require("rxjs/add/operator/throttleTime"),require("rxjs/add/operator/timeout"),require("rxjs/add/operator/timeoutWith"),require("rxjs/add/operator/toArray"),require("rxjs/add/operator/toPromise"),require("rxjs/add/operator/window"),require("rxjs/add/operator/windowCount"),require("rxjs/add/operator/windowTime"),require("rxjs/add/operator/windowToggle"),require("rxjs/add/operator/windowWhen"),require("rxjs/add/operator/withLatestFrom"),require("rxjs/add/operator/zip"),require("rxjs/add/operator/zipAll");var n=require("rxjs/Subscription");e.Subscription=n.Subscription;var a=require("rxjs/Subscriber");e.Subscriber=a.Subscriber;var u=require("rxjs/subject/AsyncSubject");e.AsyncSubject=u.AsyncSubject;var c=require("rxjs/subject/ReplaySubject");e.ReplaySubject=c.ReplaySubject;var l=require("rxjs/subject/BehaviorSubject");e.BehaviorSubject=l.BehaviorSubject;var p=require("rxjs/observable/ConnectableObservable");e.ConnectableObservable=p.ConnectableObservable;var b=require("rxjs/Notification");e.Notification=b.Notification;var h=require("rxjs/util/EmptyError");e.EmptyError=h.EmptyError;var f=require("rxjs/util/ArgumentOutOfRangeError");e.ArgumentOutOfRangeError=f.ArgumentOutOfRangeError;var d=require("rxjs/util/ObjectUnsubscribedError");e.ObjectUnsubscribedError=d.ObjectUnsubscribedError;var v=require("rxjs/scheduler/asap"),x=require("rxjs/scheduler/queue"),y=require("rxjs/symbol/rxSubscriber"),j={asap:v.asap,queue:x.queue};e.Scheduler=j;var m={rxSubscriber:y.rxSubscriber};return e.Symbol=m,r.define=i,t.exports});
+//# sourceMappingURL=Rx.min.js.map \ No newline at end of file
diff --git a/demo/js_dependencies/angular2-polyfills.min.js b/demo/js_dependencies/angular2-polyfills.min.js
new file mode 100644
index 0000000..dee0c44
--- /dev/null
+++ b/demo/js_dependencies/angular2-polyfills.min.js
@@ -0,0 +1 @@
+!function e(t,n,r){function o(u,a){if(!n[u]){if(!t[u]){var s="function"==typeof require&&require;if(!a&&s)return s(u,!0);if(i)return i(u,!0);var c=new Error("Cannot find module '"+u+"'");throw c.code="MODULE_NOT_FOUND",c}var f=n[u]={exports:{}};t[u][0].call(f.exports,function(e){var n=t[u][1][e];return o(n?n:e)},f,f.exports,e,t,n,r)}return n[u].exports}for(var i="function"==typeof require&&require,u=0;u<r.length;u++)o(r[u]);return o}({1:[function(e,t,n){(function(t){"use strict";var n=e("../core"),r=e("../microtask"),o=e("../patch/browser"),i=e("es6-promise");t.Zone&&console.warn("Zone already exported on window the object!"),t.Zone=r.addMicrotaskSupport(n.Zone),t.zone=new t.Zone,t.Promise=i.Promise,o.apply()}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"../core":2,"../microtask":4,"../patch/browser":5,"es6-promise":17}],2:[function(e,t,n){(function(n){"use strict";function r(e,t){var 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v(e,this.input,r,this.location)},e}();t._ParseAST=_;var b=function(){function e(){this.simple=!0}return e.check=function(t){var r=new e;return t.visit(r),r.simple},e.prototype.visitImplicitReceiver=function(e){},e.prototype.visitInterpolation=function(e){this.simple=!1},e.prototype.visitLiteralPrimitive=function(e){},e.prototype.visitPropertyRead=function(e){},e.prototype.visitPropertyWrite=function(e){this.simple=!1},e.prototype.visitSafePropertyRead=function(e){this.simple=!1},e.prototype.visitMethodCall=function(e){this.simple=!1},e.prototype.visitSafeMethodCall=function(e){this.simple=!1},e.prototype.visitFunctionCall=function(e){this.simple=!1},e.prototype.visitLiteralArray=function(e){this.visitAll(e.expressions)},e.prototype.visitLiteralMap=function(e){this.visitAll(e.values)},e.prototype.visitBinary=function(e){this.simple=!1},e.prototype.visitPrefixNot=function(e){this.simple=!1},e.prototype.visitConditional=function(e){this.simple=!1},e.prototype.visitPipe=function(e){this.simple=!1},e.prototype.visitKeyedRead=function(e){this.simple=!1},e.prototype.visitKeyedWrite=function(e){this.simple=!1},e.prototype.visitAll=function(e){for(var t=p.ListWrapper.createFixedSize(e.length),r=0;r<e.length;++r)t[r]=e[r].visit(this);return t},e.prototype.visitChain=function(e){this.simple=!1},e.prototype.visitQuote=function(e){this.simple=!1},e}();return n.define=i,r.exports}),System.register("angular2/src/core/change_detection/parser/locals",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/facade/collection"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/facade/exceptions"),s=e("angular2/src/facade/collection"),c=function(){function e(e,t){this.parent=e,this.current=t}return e.prototype.contains=function(e){return this.current.has(e)?!0:o.isPresent(this.parent)?this.parent.contains(e):!1},e.prototype.get=function(e){if(this.current.has(e))return this.current.get(e);if(o.isPresent(this.parent))return this.parent.get(e);throw new a.BaseException("Cannot find '"+e+"'")},e.prototype.set=function(e,t){if(!this.current.has(e))throw new a.BaseException("Setting of new keys post-construction is not supported. Key: "+e+".");this.current.set(e,t)},e.prototype.clearValues=function(){s.MapWrapper.clearValues(this.current)},e}();return t.Locals=c,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/exceptions",["angular2/src/facade/exceptions"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=e("angular2/src/facade/exceptions"),s=function(e){function t(t,r,n,i){e.call(this,"Expression '"+t+"' has changed after it was checked. "+("Previous value: '"+r+"'. Current value: '"+n+"'"))}return o(t,e),t}(a.BaseException);t.ExpressionChangedAfterItHasBeenCheckedException=s;var c=function(e){function t(t,r,n,i){e.call(this,r+" in ["+t+"]",r,n,i),this.location=t}return o(t,e),t}(a.WrappedException);t.ChangeDetectionError=c;var l=function(e){function t(){e.call(this,"Attempt to detect changes on a dehydrated detector.")}return o(t,e),t}(a.BaseException);return t.DehydratedException=l,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/interfaces",[],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=function(){function e(e,t,r,n,i,o){this.element=e,this.componentElement=t,this.directive=r,this.context=n,this.locals=i,this.injector=o}return e}();t.DebugContext=o;var a=function(){function e(e,t,r){this.genDebugInfo=e,this.logBindingUpdate=t,this.useJit=r}return e}();t.ChangeDetectorGenConfig=a;var s=function(){function e(e,t,r,n,i,o,a){this.id=e,this.strategy=t,this.variableNames=r,this.bindingRecords=n,this.eventRecords=i,this.directiveRecords=o,this.genConfig=a}return e}();return t.ChangeDetectorDefinition=s,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/constants",["angular2/src/facade/lang"],!0,function(e,t,r){function n(e){return a.isBlank(e)||e===c.Default}var i=System.global,o=i.define;i.define=void 0;var a=e("angular2/src/facade/lang");!function(e){e[e.NeverChecked=0]="NeverChecked",e[e.CheckedBefore=1]="CheckedBefore",e[e.Errored=2]="Errored"}(t.ChangeDetectorState||(t.ChangeDetectorState={}));var s=t.ChangeDetectorState;!function(e){e[e.CheckOnce=0]="CheckOnce",e[e.Checked=1]="Checked",e[e.CheckAlways=2]="CheckAlways",e[e.Detached=3]="Detached",e[e.OnPush=4]="OnPush",e[e.Default=5]="Default",e[e.OnPushObserve=6]="OnPushObserve"}(t.ChangeDetectionStrategy||(t.ChangeDetectionStrategy={}));var c=t.ChangeDetectionStrategy;return t.CHANGE_DETECTION_STRATEGY_VALUES=[c.CheckOnce,c.Checked,c.CheckAlways,c.Detached,c.OnPush,c.Default,c.OnPushObserve],t.CHANGE_DETECTOR_STATE_VALUES=[s.NeverChecked,s.CheckedBefore,s.Errored],t.isDefaultChangeDetectionStrategy=n,i.define=o,r.exports}),System.register("angular2/src/core/change_detection/pipe_lifecycle_reflector",[],!0,function(e,t,r){function n(e){return e.constructor.prototype.ngOnDestroy}var i=System.global,o=i.define;return i.define=void 0,t.implementsOnDestroy=n,i.define=o,r.exports}),System.register("angular2/src/core/change_detection/binding_record",["angular2/src/facade/lang"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a="directiveLifecycle",s="native",c="directive",l="elementProperty",u="elementAttribute",p="elementClass",d="elementStyle",f="textNode",h="event",g="hostEvent",m=function(){function e(e,t,r,n,i){this.mode=e,this.elementIndex=t,this.name=r,this.unit=n,this.debug=i}return e.prototype.isDirective=function(){return this.mode===c},e.prototype.isElementProperty=function(){return this.mode===l},e.prototype.isElementAttribute=function(){return this.mode===u},e.prototype.isElementClass=function(){return this.mode===p},e.prototype.isElementStyle=function(){return this.mode===d},e.prototype.isTextNode=function(){return this.mode===f},e}();t.BindingTarget=m;var v=function(){function e(e,t,r,n,i,o,a){this.mode=e,this.target=t,this.implicitReceiver=r,this.ast=n,this.setter=i,this.lifecycleEvent=o,this.directiveRecord=a}return e.prototype.isDirectiveLifecycle=function(){return this.mode===a},e.prototype.callOnChanges=function(){return o.isPresent(this.directiveRecord)&&this.directiveRecord.callOnChanges},e.prototype.isDefaultChangeDetection=function(){return o.isBlank(this.directiveRecord)||this.directiveRecord.isDefaultChangeDetection()},e.createDirectiveDoCheck=function(t){return new e(a,null,0,null,null,"DoCheck",t)},e.createDirectiveOnInit=function(t){return new e(a,null,0,null,null,"OnInit",t)},e.createDirectiveOnChanges=function(t){return new e(a,null,0,null,null,"OnChanges",t)},e.createForDirective=function(t,r,n,i){var o=i.directiveIndex.elementIndex,a=new m(c,o,r,null,t.toString());return new e(c,a,0,t,n,null,i)},e.createForElementProperty=function(t,r,n){var i=new m(l,r,n,null,t.toString());return new e(s,i,0,t,null,null,null)},e.createForElementAttribute=function(t,r,n){var i=new m(u,r,n,null,t.toString());return new e(s,i,0,t,null,null,null)},e.createForElementClass=function(t,r,n){var i=new m(p,r,n,null,t.toString());return new e(s,i,0,t,null,null,null)},e.createForElementStyle=function(t,r,n,i){var o=new m(d,r,n,i,t.toString());return new e(s,o,0,t,null,null,null)},e.createForHostProperty=function(t,r,n){var i=new m(l,t.elementIndex,n,null,r.toString());return new e(s,i,t,r,null,null,null)},e.createForHostAttribute=function(t,r,n){var i=new m(u,t.elementIndex,n,null,r.toString());return new e(s,i,t,r,null,null,null)},e.createForHostClass=function(t,r,n){var i=new m(p,t.elementIndex,n,null,r.toString());return new e(s,i,t,r,null,null,null)},e.createForHostStyle=function(t,r,n,i){var o=new m(d,t.elementIndex,n,i,r.toString());return new e(s,o,t,r,null,null,null)},e.createForTextNode=function(t,r){var n=new m(f,r,null,null,t.toString());return new e(s,n,0,t,null,null,null)},e.createForEvent=function(t,r,n){var i=new m(h,n,r,null,t.toString());return new e(h,i,0,t,null,null,null)},e.createForHostEvent=function(t,r,n){var i=n.directiveIndex,o=new m(g,i.elementIndex,r,null,t.toString());return new e(g,o,i,t,null,null,n)},e}();return t.BindingRecord=v,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/directive_record",["angular2/src/facade/lang","angular2/src/core/change_detection/constants"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/core/change_detection/constants"),s=function(){function e(e,t){this.elementIndex=e,this.directiveIndex=t}return Object.defineProperty(e.prototype,"name",{get:function(){return this.elementIndex+"_"+this.directiveIndex},enumerable:!0,configurable:!0}),e}();t.DirectiveIndex=s;var c=function(){function e(e){var t=void 0===e?{}:e,r=t.directiveIndex,n=t.callAfterContentInit,i=t.callAfterContentChecked,a=t.callAfterViewInit,s=t.callAfterViewChecked,c=t.callOnChanges,l=t.callDoCheck,u=t.callOnInit,p=t.changeDetection;this.directiveIndex=r,this.callAfterContentInit=o.normalizeBool(n),this.callAfterContentChecked=o.normalizeBool(i),this.callOnChanges=o.normalizeBool(c),this.callAfterViewInit=o.normalizeBool(a),this.callAfterViewChecked=o.normalizeBool(s),this.callDoCheck=o.normalizeBool(l),this.callOnInit=o.normalizeBool(u),this.changeDetection=p}return e.prototype.isDefaultChangeDetection=function(){return a.isDefaultChangeDetectionStrategy(this.changeDetection)},e}();return t.DirectiveRecord=c,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/change_detector_ref",["angular2/src/core/change_detection/constants"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=e("angular2/src/core/change_detection/constants"),s=function(){function e(){}return e}();t.ChangeDetectorRef=s;var c=function(e){function t(t){e.call(this),this._cd=t}return o(t,e),t.prototype.markForCheck=function(){this._cd.markPathToRootAsCheckOnce()},t.prototype.detach=function(){this._cd.mode=a.ChangeDetectionStrategy.Detached},t.prototype.detectChanges=function(){this._cd.detectChanges()},t.prototype.checkNoChanges=function(){this._cd.checkNoChanges()},t.prototype.reattach=function(){this._cd.mode=a.ChangeDetectionStrategy.CheckAlways,this.markForCheck()},t}(s);return t.ChangeDetectorRef_=c,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/observable_facade",[],!0,function(e,t,r){function n(e){return!1}var i=System.global,o=i.define;return i.define=void 0,t.isObservable=n,i.define=o,r.exports}),System.register("angular2/src/core/change_detection/proto_record",[],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0,function(e){e[e.Self=0]="Self",e[e.Const=1]="Const",e[e.PrimitiveOp=2]="PrimitiveOp",e[e.PropertyRead=3]="PropertyRead",e[e.PropertyWrite=4]="PropertyWrite",e[e.Local=5]="Local",e[e.InvokeMethod=6]="InvokeMethod",e[e.InvokeClosure=7]="InvokeClosure",e[e.KeyedRead=8]="KeyedRead",e[e.KeyedWrite=9]="KeyedWrite",e[e.Pipe=10]="Pipe",e[e.Interpolate=11]="Interpolate",e[e.SafeProperty=12]="SafeProperty",e[e.CollectionLiteral=13]="CollectionLiteral",e[e.SafeMethodInvoke=14]="SafeMethodInvoke",e[e.DirectiveLifecycle=15]="DirectiveLifecycle",e[e.Chain=16]="Chain",e[e.SkipRecordsIf=17]="SkipRecordsIf",e[e.SkipRecordsIfNot=18]="SkipRecordsIfNot",e[e.SkipRecords=19]="SkipRecords"}(t.RecordType||(t.RecordType={}));var o=t.RecordType,a=function(){function e(e,t,r,n,i,o,a,s,c,l,u,p,d,f){this.mode=e,this.name=t,this.funcOrValue=r,this.args=n,
+this.fixedArgs=i,this.contextIndex=o,this.directiveIndex=a,this.selfIndex=s,this.bindingRecord=c,this.lastInBinding=l,this.lastInDirective=u,this.argumentToPureFunction=p,this.referencedBySelf=d,this.propertyBindingIndex=f}return e.prototype.isPureFunction=function(){return this.mode===o.Interpolate||this.mode===o.CollectionLiteral},e.prototype.isUsedByOtherRecord=function(){return!this.lastInBinding||this.referencedBySelf},e.prototype.shouldBeChecked=function(){return this.argumentToPureFunction||this.lastInBinding||this.isPureFunction()||this.isPipeRecord()},e.prototype.isPipeRecord=function(){return this.mode===o.Pipe},e.prototype.isConditionalSkipRecord=function(){return this.mode===o.SkipRecordsIfNot||this.mode===o.SkipRecordsIf},e.prototype.isUnconditionalSkipRecord=function(){return this.mode===o.SkipRecords},e.prototype.isSkipRecord=function(){return this.isConditionalSkipRecord()||this.isUnconditionalSkipRecord()},e.prototype.isLifeCycleRecord=function(){return this.mode===o.DirectiveLifecycle},e}();return t.ProtoRecord=a,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/event_binding",[],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=function(){function e(e,t,r,n){this.eventName=e,this.elIndex=t,this.dirIndex=r,this.records=n}return e}();return t.EventBinding=o,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/coalesce",["angular2/src/facade/lang","angular2/src/facade/collection","angular2/src/core/change_detection/proto_record"],!0,function(e,t,r){function n(e){for(var t=[],r=[],n=new h.Map,a=0,c=h.ListWrapper.createFixedSize(e.length),l=0;l<e.length;l++){var u=c[l];f.isPresent(u)&&(a--,u.fixedArgs[0]=t.length);var p=e[l],d=s(p,t,n);if(d.isSkipRecord())t.push(d),a++,c[d.fixedArgs[0]]=d;else{var g=o(d,t,r,a>0);n.set(p.selfIndex,g.selfIndex)}}return i(t)}function i(e){for(var t=[],r=h.ListWrapper.createFixedSize(e.length),n=new h.Map,i=0;i<e.length;i++){var o=r[i];f.isPresent(o)&&(o.fixedArgs[0]=t.length);var a=e[i];if(a.isSkipRecord()){if(a.isConditionalSkipRecord()&&a.fixedArgs[0]===i+2&&i<e.length-1&&e[i+1].mode===g.RecordType.SkipRecords&&(a.mode=a.mode===g.RecordType.SkipRecordsIf?g.RecordType.SkipRecordsIfNot:g.RecordType.SkipRecordsIf,a.fixedArgs[0]=e[i+1].fixedArgs[0],i++),a.fixedArgs[0]>i+1){var c=s(a,t,n);t.push(c),r[c.fixedArgs[0]]=c}}else{var c=s(a,t,n);t.push(c),n.set(a.selfIndex,c.selfIndex)}}return t}function o(e,t,r,n){var i=a(e,t,r);return f.isPresent(i)?(e.lastInBinding?(t.push(l(e,i.selfIndex,t.length+1)),i.referencedBySelf=!0):e.argumentToPureFunction&&(i.argumentToPureFunction=!0),i):(n&&r.push(e.selfIndex),t.push(e),e)}function a(e,t,r){return t.find(function(t){return-1==r.indexOf(t.selfIndex)&&t.mode!==g.RecordType.DirectiveLifecycle&&u(t,e)&&t.mode===e.mode&&f.looseIdentical(t.funcOrValue,e.funcOrValue)&&t.contextIndex===e.contextIndex&&f.looseIdentical(t.name,e.name)&&h.ListWrapper.equals(t.args,e.args)})}function s(e,t,r){var n=e.args.map(function(e){return c(r,e)}),i=c(r,e.contextIndex),o=t.length+1;return new g.ProtoRecord(e.mode,e.name,e.funcOrValue,n,e.fixedArgs,i,e.directiveIndex,o,e.bindingRecord,e.lastInBinding,e.lastInDirective,e.argumentToPureFunction,e.referencedBySelf,e.propertyBindingIndex)}function c(e,t){var r=e.get(t);return f.isPresent(r)?r:t}function l(e,t,r){return new g.ProtoRecord(g.RecordType.Self,"self",null,[],e.fixedArgs,t,e.directiveIndex,r,e.bindingRecord,e.lastInBinding,e.lastInDirective,!1,!1,e.propertyBindingIndex)}function u(e,t){var r=f.isBlank(e.directiveIndex)?null:e.directiveIndex.directiveIndex,n=f.isBlank(e.directiveIndex)?null:e.directiveIndex.elementIndex,i=f.isBlank(t.directiveIndex)?null:t.directiveIndex.directiveIndex,o=f.isBlank(t.directiveIndex)?null:t.directiveIndex.elementIndex;return r===i&&n===o}var p=System.global,d=p.define;p.define=void 0;var f=e("angular2/src/facade/lang"),h=e("angular2/src/facade/collection"),g=e("angular2/src/core/change_detection/proto_record");return t.coalesce=n,p.define=d,r.exports}),System.register("angular2/src/core/change_detection/codegen_name_util",["angular2/src/facade/lang","angular2/src/facade/collection"],!0,function(e,t,r){function n(e){return a.StringWrapper.replaceAll(e,v,"")}var i=System.global,o=i.define;i.define=void 0;var a=e("angular2/src/facade/lang"),s=e("angular2/src/facade/collection"),c="state",l="propertyBindingIndex",u="directiveIndices",p="dispatcher",d="locals",f="mode",h="pipes",g="protos";t.CONTEXT_ACCESSOR="context",t.CONTEXT_INDEX=0;var m="this.",v=/\W/g;t.sanitizeName=n;var y=function(){function e(e,r,i,o){this._records=e,this._eventBindings=r,this._directiveRecords=i,this._utilName=o,this._sanitizedEventNames=new s.Map,this._sanitizedNames=s.ListWrapper.createFixedSize(this._records.length+1),this._sanitizedNames[t.CONTEXT_INDEX]=t.CONTEXT_ACCESSOR;for(var a=0,c=this._records.length;c>a;++a)this._sanitizedNames[a+1]=n(""+this._records[a].name+a);for(var l=0;l<r.length;++l){for(var u=r[l],p=[t.CONTEXT_ACCESSOR],a=0,c=u.records.length;c>a;++a)p.push(n(""+u.records[a].name+a+"_"+l));this._sanitizedEventNames.set(u,p)}}return e.prototype._addFieldPrefix=function(e){return""+m+e},e.prototype.getDispatcherName=function(){return this._addFieldPrefix(p)},e.prototype.getPipesAccessorName=function(){return this._addFieldPrefix(h)},e.prototype.getProtosName=function(){return this._addFieldPrefix(g)},e.prototype.getDirectivesAccessorName=function(){return this._addFieldPrefix(u)},e.prototype.getLocalsAccessorName=function(){return this._addFieldPrefix(d)},e.prototype.getStateName=function(){return this._addFieldPrefix(c)},e.prototype.getModeName=function(){return this._addFieldPrefix(f)},e.prototype.getPropertyBindingIndex=function(){return this._addFieldPrefix(l)},e.prototype.getLocalName=function(e){return"l_"+this._sanitizedNames[e]},e.prototype.getEventLocalName=function(e,t){return"l_"+this._sanitizedEventNames.get(e)[t]},e.prototype.getChangeName=function(e){return"c_"+this._sanitizedNames[e]},e.prototype.genInitLocals=function(){for(var e=[],r=[],n=0,i=this.getFieldCount();i>n;++n)if(n==t.CONTEXT_INDEX)e.push(this.getLocalName(n)+" = "+this.getFieldName(n));else{var o=this._records[n-1];if(o.argumentToPureFunction){var a=this.getChangeName(n);e.push(this.getLocalName(n)+","+a),r.push(a)}else e.push(""+this.getLocalName(n))}var c=s.ListWrapper.isEmpty(r)?"":r.join("=")+" = false;";return"var 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o=e("angular2/src/facade/lang"),a=e("angular2/src/core/di"),s=e("angular2/src/core/application_tokens"),c=e("angular2/src/core/change_detection/change_detection"),l=e("angular2/src/core/linker/view_pool"),u=e("angular2/src/core/linker/view_manager"),p=e("angular2/src/core/linker/view_manager"),d=e("angular2/src/core/linker/view_manager_utils"),f=e("angular2/src/core/linker/view_resolver"),h=e("angular2/src/core/linker/view_listener"),g=e("angular2/src/core/linker/proto_view_factory"),m=e("angular2/src/core/linker/directive_resolver"),v=e("angular2/src/core/linker/pipe_resolver"),y=e("angular2/src/core/linker/compiler"),_=e("angular2/src/core/linker/compiler"),b=e("angular2/src/core/linker/dynamic_component_loader"),C=e("angular2/src/core/linker/dynamic_component_loader");return t.APPLICATION_COMMON_PROVIDERS=o.CONST_EXPR([new a.Provider(y.Compiler,{useClass:_.Compiler_}),s.APP_ID_RANDOM_PROVIDER,l.AppViewPool,new a.Provider(l.APP_VIEW_POOL_CAPACITY,{useValue:1e4}),new a.Provider(u.AppViewManager,{useClass:p.AppViewManager_}),d.AppViewManagerUtils,h.AppViewListener,g.ProtoViewFactory,f.ViewResolver,new a.Provider(c.IterableDiffers,{useValue:c.defaultIterableDiffers}),new a.Provider(c.KeyValueDiffers,{useValue:c.defaultKeyValueDiffers}),m.DirectiveResolver,v.PipeResolver,new a.Provider(b.DynamicComponentLoader,{useClass:C.DynamicComponentLoader_})]),n.define=i,r.exports}),System.register("angular2/src/platform/dom/events/event_manager",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/core/di","angular2/src/core/zone/ng_zone","angular2/src/facade/collection"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__decorate||function(e,t,r,n){var i,o=arguments.length,a=3>o?t:null===n?n=Object.getOwnPropertyDescriptor(t,r):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)a=Reflect.decorate(e,t,r,n);else for(var 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t.ChangeDetectionUtil=_,i.define=o,r.exports}),System.register("angular2/src/core/change_detection/abstract_change_detector",["angular2/src/facade/lang","angular2/src/facade/collection","angular2/src/core/change_detection/change_detection_util","angular2/src/core/change_detection/change_detector_ref","angular2/src/core/change_detection/exceptions","angular2/src/core/change_detection/constants","angular2/src/core/profile/profile","angular2/src/core/change_detection/observable_facade"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/facade/collection"),s=e("angular2/src/core/change_detection/change_detection_util"),c=e("angular2/src/core/change_detection/change_detector_ref"),l=e("angular2/src/core/change_detection/exceptions"),u=e("angular2/src/core/change_detection/constants"),p=e("angular2/src/core/profile/profile"),d=e("angular2/src/core/change_detection/observable_facade"),f=p.wtfCreateScope("ChangeDetector#check(ascii id, bool throwOnChange)"),h=function(){function e(e,t,r,n,i,o){this.element=e,this.componentElement=t,this.context=r,this.locals=n,this.injector=i,this.expression=o}return e}(),g=function(){function e(e,t,r,n,i,o){this.id=e,this.dispatcher=t,this.numberOfPropertyProtoRecords=r,this.bindingTargets=n,this.directiveIndices=i,this.strategy=o,this.contentChildren=[],this.viewChildren=[],this.state=u.ChangeDetectorState.NeverChecked,this.locals=null,this.mode=null,this.pipes=null,this.ref=new c.ChangeDetectorRef_(this)}return e.prototype.addContentChild=function(e){this.contentChildren.push(e),e.parent=this},e.prototype.removeContentChild=function(e){a.ListWrapper.remove(this.contentChildren,e)},e.prototype.addViewChild=function(e){this.viewChildren.push(e),e.parent=this},e.prototype.removeViewChild=function(e){a.ListWrapper.remove(this.viewChildren,e)},e.prototype.remove=function(){this.parent.removeContentChild(this)},e.prototype.handleEvent=function(e,t,r){var n=this.handleEventInternal(e,t,r);return this.markPathToRootAsCheckOnce(),n},e.prototype.handleEventInternal=function(e,t,r){return!1},e.prototype.detectChanges=function(){this.runDetectChanges(!1)},e.prototype.checkNoChanges=function(){o.assertionsEnabled()&&this.runDetectChanges(!0)},e.prototype.runDetectChanges=function(e){if(this.mode!==u.ChangeDetectionStrategy.Detached&&this.mode!==u.ChangeDetectionStrategy.Checked&&this.state!==u.ChangeDetectorState.Errored){var t=f(this.id,e);this.detectChangesInRecords(e),this._detectChangesContentChildren(e),e||this.afterContentLifecycleCallbacks(),this._detectChangesInViewChildren(e),e||this.afterViewLifecycleCallbacks(),this.mode===u.ChangeDetectionStrategy.CheckOnce&&(this.mode=u.ChangeDetectionStrategy.Checked),this.state=u.ChangeDetectorState.CheckedBefore,p.wtfLeave(t)}},e.prototype.detectChangesInRecords=function(e){this.hydrated()||this.throwDehydratedError();try{this.detectChangesInRecordsInternal(e)}catch(t){t instanceof l.ExpressionChangedAfterItHasBeenCheckedException||(this.state=u.ChangeDetectorState.Errored),this._throwError(t,t.stack)}},e.prototype.detectChangesInRecordsInternal=function(e){},e.prototype.hydrate=function(e,t,r,n){this.mode=s.ChangeDetectionUtil.changeDetectionMode(this.strategy),this.context=e,this.strategy===u.ChangeDetectionStrategy.OnPushObserve&&this.observeComponent(e),this.locals=t,this.pipes=n,this.hydrateDirectives(r),this.state=u.ChangeDetectorState.NeverChecked},e.prototype.hydrateDirectives=function(e){},e.prototype.dehydrate=function(){this.dehydrateDirectives(!0),this.strategy===u.ChangeDetectionStrategy.OnPushObserve&&this._unsubsribeFromObservables(),this.context=null,this.locals=null,this.pipes=null},e.prototype.dehydrateDirectives=function(e){},e.prototype.hydrated=function(){return o.isPresent(this.context)},e.prototype.afterContentLifecycleCallbacks=function(){this.dispatcher.notifyAfterContentChecked(),this.afterContentLifecycleCallbacksInternal()},e.prototype.afterContentLifecycleCallbacksInternal=function(){},e.prototype.afterViewLifecycleCallbacks=function(){this.dispatcher.notifyAfterViewChecked(),this.afterViewLifecycleCallbacksInternal()},e.prototype.afterViewLifecycleCallbacksInternal=function(){},e.prototype._detectChangesContentChildren=function(e){for(var t=this.contentChildren,r=0;r<t.length;++r)t[r].runDetectChanges(e)},e.prototype._detectChangesInViewChildren=function(e){for(var t=this.viewChildren,r=0;r<t.length;++r)t[r].runDetectChanges(e)},e.prototype.markAsCheckOnce=function(){this.mode=u.ChangeDetectionStrategy.CheckOnce},e.prototype.markPathToRootAsCheckOnce=function(){for(var e=this;o.isPresent(e)&&e.mode!==u.ChangeDetectionStrategy.Detached;)e.mode===u.ChangeDetectionStrategy.Checked&&(e.mode=u.ChangeDetectionStrategy.CheckOnce),e=e.parent},e.prototype._unsubsribeFromObservables=function(){if(o.isPresent(this.subscriptions))for(var e=0;e<this.subscriptions.length;++e){var t=this.subscriptions[e];o.isPresent(this.subscriptions[e])&&(t.cancel(),this.subscriptions[e]=null)}},e.prototype.observeValue=function(e,t){var r=this;return d.isObservable(e)&&(this._createArrayToStoreObservables(),o.isBlank(this.subscriptions[t])?(this.streams[t]=e.changes,this.subscriptions[t]=e.changes.listen(function(e){return r.ref.markForCheck()})):this.streams[t]!==e.changes&&(this.subscriptions[t].cancel(),this.streams[t]=e.changes,this.subscriptions[t]=e.changes.listen(function(e){return r.ref.markForCheck()}))),e},e.prototype.observeDirective=function(e,t){var r=this;if(d.isObservable(e)){this._createArrayToStoreObservables();var n=this.numberOfPropertyProtoRecords+t+2;this.streams[n]=e.changes,this.subscriptions[n]=e.changes.listen(function(e){return r.ref.markForCheck()})}return e},e.prototype.observeComponent=function(e){var t=this;if(d.isObservable(e)){this._createArrayToStoreObservables();var r=this.numberOfPropertyProtoRecords+1;this.streams[r]=e.changes,this.subscriptions[r]=e.changes.listen(function(e){return t.ref.markForCheck()})}return e},e.prototype._createArrayToStoreObservables=function(){o.isBlank(this.subscriptions)&&(this.subscriptions=a.ListWrapper.createFixedSize(this.numberOfPropertyProtoRecords+this.directiveIndices.length+2),this.streams=a.ListWrapper.createFixedSize(this.numberOfPropertyProtoRecords+this.directiveIndices.length+2))},e.prototype.getDirectiveFor=function(e,t){return e.getDirectiveFor(this.directiveIndices[t])},e.prototype.getDetectorFor=function(e,t){return e.getDetectorFor(this.directiveIndices[t])},e.prototype.notifyDispatcher=function(e){this.dispatcher.notifyOnBinding(this._currentBinding(),e)},e.prototype.logBindingUpdate=function(e){this.dispatcher.logBindingUpdate(this._currentBinding(),e)},e.prototype.addChange=function(e,t,r){return o.isBlank(e)&&(e={}),e[this._currentBinding().name]=s.ChangeDetectionUtil.simpleChange(t,r),e},e.prototype._throwError=function(e,t){var r;try{var n=this.dispatcher.getDebugContext(this._currentBinding().elementIndex,null),i=o.isPresent(n)?new h(n.element,n.componentElement,n.context,n.locals,n.injector,this._currentBinding().debug):null;r=new l.ChangeDetectionError(this._currentBinding().debug,e,t,i)}catch(a){r=new l.ChangeDetectionError(null,e,t,null)}throw r},e.prototype.throwOnChangeError=function(e,t){throw new l.ExpressionChangedAfterItHasBeenCheckedException(this._currentBinding().debug,e,t,null)},e.prototype.throwDehydratedError=function(){throw new l.DehydratedException},e.prototype._currentBinding=function(){return this.bindingTargets[this.propertyBindingIndex]},e}();return t.AbstractChangeDetector=g,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/codegen_logic_util",["angular2/src/facade/lang","angular2/src/core/change_detection/codegen_facade","angular2/src/core/change_detection/proto_record","angular2/src/core/change_detection/constants","angular2/src/facade/exceptions"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/core/change_detection/codegen_facade"),s=e("angular2/src/core/change_detection/proto_record"),c=e("angular2/src/core/change_detection/constants"),l=e("angular2/src/facade/exceptions"),u=function(){function e(e,t,r,n){this._names=e,this._utilName=t,this._changeDetectorStateName=r,this._changeDetection=n}return e.prototype.genPropertyBindingEvalValue=function(e){var t=this;return this._genEvalValue(e,function(e){return t._names.getLocalName(e)},this._names.getLocalsAccessorName())},e.prototype.genEventBindingEvalValue=function(e,t){var r=this;return this._genEvalValue(t,function(t){return r._names.getEventLocalName(e,t)},"locals")},e.prototype._genEvalValue=function(e,t,r){var n,i=-1==e.contextIndex?this._names.getDirectiveName(e.directiveIndex):t(e.contextIndex),o=e.args.map(function(e){return t(e)}).join(", ");switch(e.mode){case s.RecordType.Self:n=i;break;case s.RecordType.Const:n=a.codify(e.funcOrValue);break;case s.RecordType.PropertyRead:n=this._observe(i+"."+e.name,e);break;case s.RecordType.SafeProperty:var c=this._observe(i+"."+e.name,e);n=this._utilName+".isValueBlank("+i+") ? null : "+this._observe(c,e);break;case s.RecordType.PropertyWrite:n=i+"."+e.name+" = "+t(e.args[0]);break;case s.RecordType.Local:n=this._observe(r+".get("+a.rawString(e.name)+")",e);break;case s.RecordType.InvokeMethod:n=this._observe(i+"."+e.name+"("+o+")",e);break;case s.RecordType.SafeMethodInvoke:var u=i+"."+e.name+"("+o+")";n=this._utilName+".isValueBlank("+i+") ? null : "+this._observe(u,e);break;case s.RecordType.InvokeClosure:n=i+"("+o+")";break;case s.RecordType.PrimitiveOp:n=this._utilName+"."+e.name+"("+o+")";break;case s.RecordType.CollectionLiteral:n=this._utilName+"."+e.name+"("+o+")";break;case s.RecordType.Interpolate:n=this._genInterpolation(e);break;case s.RecordType.KeyedRead:n=this._observe(i+"["+t(e.args[0])+"]",e);break;case s.RecordType.KeyedWrite:n=i+"["+t(e.args[0])+"] = "+t(e.args[1]);break;case s.RecordType.Chain:n="null";break;default:throw new l.BaseException("Unknown operation "+e.mode)}return t(e.selfIndex)+" = "+n+";"},e.prototype._observe=function(e,t){return this._changeDetection===c.ChangeDetectionStrategy.OnPushObserve?"this.observeValue("+e+", "+t.selfIndex+")":e},e.prototype.genPropertyBindingTargets=function(e,t){var r=this,n=e.map(function(e){if(o.isBlank(e))return"null";var n=t?a.codify(e.debug):"null";return r._utilName+".bindingTarget("+a.codify(e.mode)+", "+e.elementIndex+", "+a.codify(e.name)+", "+a.codify(e.unit)+", "+n+")"});return"["+n.join(", ")+"]"},e.prototype.genDirectiveIndices=function(e){var t=this,r=e.map(function(e){return t._utilName+".directiveIndex("+e.directiveIndex.elementIndex+", "+e.directiveIndex.directiveIndex+")"});return"["+r.join(", ")+"]"},e.prototype._genInterpolation=function(e){for(var t=[],r=0;r<e.args.length;++r)t.push(a.codify(e.fixedArgs[r])),t.push(this._utilName+".s("+this._names.getLocalName(e.args[r])+")");return t.push(a.codify(e.fixedArgs[e.args.length])),a.combineGeneratedStrings(t)},e.prototype.genHydrateDirectives=function(e){for(var t=[],r=0;r<e.length;++r){var n=e[r];t.push(this._names.getDirectiveName(n.directiveIndex)+" = "+this._genReadDirective(r)+";")}return t.join("\n")},e.prototype._genReadDirective=function(e){return this._changeDetection===c.ChangeDetectionStrategy.OnPushObserve?"this.observeDirective(this.getDirectiveFor(directives, "+e+"), "+e+")":"this.getDirectiveFor(directives, "+e+")"},e.prototype.genHydrateDetectors=function(e){for(var t=[],r=0;r<e.length;++r){var n=e[r];n.isDefaultChangeDetection()||t.push(this._names.getDetectorName(n.directiveIndex)+" = this.getDetectorFor(directives, "+r+");")}return t.join("\n")},e.prototype.genContentLifecycleCallbacks=function(e){for(var t=[],r=o.IS_DART?"==":"===",n=e.length-1;n>=0;--n){var i=e[n];i.callAfterContentInit&&t.push("if("+this._names.getStateName()+" "+r+" "+this._changeDetectorStateName+".NeverChecked) "+this._names.getDirectiveName(i.directiveIndex)+".ngAfterContentInit();"),i.callAfterContentChecked&&t.push(this._names.getDirectiveName(i.directiveIndex)+".ngAfterContentChecked();")}return t},e.prototype.genViewLifecycleCallbacks=function(e){for(var t=[],r=o.IS_DART?"==":"===",n=e.length-1;n>=0;--n){var i=e[n];i.callAfterViewInit&&t.push("if("+this._names.getStateName()+" "+r+" "+this._changeDetectorStateName+".NeverChecked) "+this._names.getDirectiveName(i.directiveIndex)+".ngAfterViewInit();"),i.callAfterViewChecked&&t.push(this._names.getDirectiveName(i.directiveIndex)+".ngAfterViewChecked();")}return t},e}();return t.CodegenLogicUtil=u,n.define=i,r.exports}),System.register("angular2/src/core/pipes/pipes",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/facade/collection","angular2/src/core/change_detection/pipes"],!0,function(e,t,r){
+var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/facade/exceptions"),s=e("angular2/src/facade/collection"),c=e("angular2/src/core/change_detection/pipes"),l=function(){function e(e){this.config=e,this.config=e}return e.fromProviders=function(t){var r={};return t.forEach(function(e){return r[e.name]=e}),new e(r)},e.prototype.get=function(e){var t=this.config[e];if(o.isBlank(t))throw new a.BaseException("Cannot find pipe '"+e+"'.");return t},e}();t.ProtoPipes=l;var u=function(){function e(e,t){this.proto=e,this.injector=t,this._config={}}return e.prototype.get=function(e){var t=s.StringMapWrapper.get(this._config,e);if(o.isPresent(t))return t;var r=this.proto.get(e),n=this.injector.instantiateResolved(r),i=new c.SelectedPipe(n,r.pure);return r.pure&&s.StringMapWrapper.set(this._config,e,i),i},e}();return t.Pipes=u,n.define=i,r.exports}),System.register("angular2/src/core/linker/view",["angular2/src/facade/collection","angular2/src/core/change_detection/change_detection","angular2/src/core/change_detection/interfaces","angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/core/linker/view_ref","angular2/src/core/render/util","angular2/src/core/linker/view_ref","angular2/src/core/change_detection/interfaces"],!0,function(e,t,r){function n(e){for(var t={},r=e;u.isPresent(r);)t=s.StringMapWrapper.merge(t,s.MapWrapper.toStringMap(r.current)),r=r.parent;return t}var i=System.global,o=i.define;i.define=void 0;var a=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},s=e("angular2/src/facade/collection"),c=e("angular2/src/core/change_detection/change_detection"),l=e("angular2/src/core/change_detection/interfaces"),u=e("angular2/src/facade/lang"),p=e("angular2/src/facade/exceptions"),d=e("angular2/src/core/linker/view_ref"),f=e("angular2/src/core/render/util"),h=e("angular2/src/core/linker/view_ref"),g=e("angular2/src/core/change_detection/interfaces");t.DebugContext=g.DebugContext;var m="ng-reflect-";!function(e){e[e.HOST=0]="HOST",e[e.COMPONENT=1]="COMPONENT",e[e.EMBEDDED=2]="EMBEDDED"}(t.ViewType||(t.ViewType={}));var v=(t.ViewType,function(){function e(){this.views=[]}return e}());t.AppViewContainer=v;var y=function(){function e(e,t,r,n,i,o,a,l,u){this.renderer=e,this.proto=t,this.viewOffset=r,this.elementOffset=n,this.textOffset=i,this.render=a,this.renderFragment=l,this.containerElementInjector=u,this.views=null,this.elementInjectors=null,this.viewContainers=null,this.preBuiltObjects=null,this.changeDetector=null,this.context=null,this.ref=new h.ViewRef_(this),this.locals=new c.Locals(null,s.MapWrapper.clone(o))}return e.prototype.init=function(e,t,r,n,i,o,a){this.changeDetector=e,this.elementInjectors=t,this.rootElementInjectors=r,this.preBuiltObjects=n,this.views=i,this.elementRefs=o,this.viewContainers=a},e.prototype.setLocal=function(e,t){if(!this.hydrated())throw new p.BaseException("Cannot set locals on dehydrated view.");if(this.proto.templateVariableBindings.has(e)){var r=this.proto.templateVariableBindings.get(e);this.locals.set(r,t)}},e.prototype.hydrated=function(){return u.isPresent(this.context)},e.prototype.triggerEventHandlers=function(e,t,r){var n=new s.Map;n.set("$event",t),this.dispatchEvent(r,e,n)},e.prototype.notifyOnBinding=function(e,t){if(e.isTextNode())this.renderer.setText(this.render,e.elementIndex+this.textOffset,t);else{var r=this.elementRefs[this.elementOffset+e.elementIndex];if(e.isElementProperty())this.renderer.setElementProperty(r,e.name,t);else if(e.isElementAttribute())this.renderer.setElementAttribute(r,e.name,u.isPresent(t)?""+t:null);else if(e.isElementClass())this.renderer.setElementClass(r,e.name,t);else{if(!e.isElementStyle())throw new p.BaseException("Unsupported directive record");var n=u.isPresent(e.unit)?e.unit:"";this.renderer.setElementStyle(r,e.name,u.isPresent(t)?""+t+n:null)}}},e.prototype.logBindingUpdate=function(e,t){if(e.isDirective()||e.isElementProperty()){var r=this.elementRefs[this.elementOffset+e.elementIndex];this.renderer.setBindingDebugInfo(r,""+m+f.camelCaseToDashCase(e.name),""+t)}},e.prototype.notifyAfterContentChecked=function(){for(var e=this.proto.elementBinders.length,t=this.elementInjectors,r=e-1;r>=0;r--)u.isPresent(t[r+this.elementOffset])&&t[r+this.elementOffset].ngAfterContentChecked()},e.prototype.notifyAfterViewChecked=function(){for(var e=this.proto.elementBinders.length,t=this.elementInjectors,r=e-1;r>=0;r--)u.isPresent(t[r+this.elementOffset])&&t[r+this.elementOffset].ngAfterViewChecked()},e.prototype.getDirectiveFor=function(e){var t=this.elementInjectors[this.elementOffset+e.elementIndex];return t.getDirectiveAtIndex(e.directiveIndex)},e.prototype.getNestedView=function(e){var t=this.elementInjectors[e];return u.isPresent(t)?t.getNestedView():null},e.prototype.getContainerElement=function(){return u.isPresent(this.containerElementInjector)?this.containerElementInjector.getElementRef():null},e.prototype.getDebugContext=function(e,t){try{var r=this.elementOffset+e,i=r<this.elementRefs.length,o=i?this.elementRefs[this.elementOffset+e]:null,a=this.getContainerElement(),s=i?this.elementInjectors[this.elementOffset+e]:null,c=u.isPresent(o)?o.nativeElement:null,p=u.isPresent(a)?a.nativeElement:null,d=u.isPresent(t)?this.getDirectiveFor(t):null,f=u.isPresent(s)?s.getInjector():null;return new l.DebugContext(c,p,d,this.context,n(this.locals),f)}catch(h){return null}},e.prototype.getDetectorFor=function(e){var t=this.getNestedView(this.elementOffset+e.elementIndex);return u.isPresent(t)?t.changeDetector:null},e.prototype.invokeElementMethod=function(e,t,r){this.renderer.invokeElementMethod(this.elementRefs[e],t,r)},e.prototype.dispatchRenderEvent=function(e,t,r){var n=this.elementRefs[e],i=d.internalView(n.parentView);return i.dispatchEvent(n.boundElementIndex,t,r)},e.prototype.dispatchEvent=function(e,t,r){try{return this.hydrated()?!this.changeDetector.handleEvent(t,e-this.elementOffset,new c.Locals(this.locals,r)):!0}catch(n){var i=this.getDebugContext(e-this.elementOffset,null),o=u.isPresent(i)?new _(i.element,i.componentElement,i.context,i.locals,i.injector):null;throw new b(t,n,n.stack,o)}},Object.defineProperty(e.prototype,"ownBindersCount",{get:function(){return this.proto.elementBinders.length},enumerable:!0,configurable:!0}),e}();t.AppView=y;var _=function(){function e(e,t,r,n,i){this.element=e,this.componentElement=t,this.context=r,this.locals=n,this.injector=i}return e}(),b=function(e){function t(t,r,n,i){e.call(this,'Error during evaluation of "'+t+'"',r,n,i)}return a(t,e),t}(p.WrappedException),C=function(){function e(e,t,r){this.embeddedViewCount=e,this.elementCount=t,this.viewCount=r}return e}();t.AppProtoViewMergeInfo=C;var w=function(){function e(e,t,r,n,i,o,a){this.templateId=e,this.templateCmds=t,this.type=r,this.isMergable=n,this.changeDetectorFactory=i,this.templateVariableBindings=o,this.pipes=a,this.elementBinders=null,this.mergeInfo=null,this.variableLocations=null,this.textBindingCount=null,this.render=null,this.ref=new h.ProtoViewRef_(this)}return e.prototype.init=function(e,t,r,n,i){var o=this;this.render=e,this.elementBinders=t,this.textBindingCount=r,this.mergeInfo=n,this.variableLocations=i,this.protoLocals=new s.Map,u.isPresent(this.templateVariableBindings)&&this.templateVariableBindings.forEach(function(e,t){o.protoLocals.set(e,null)}),u.isPresent(i)&&i.forEach(function(e,t){o.protoLocals.set(t,null)})},e.prototype.isInitialized=function(){return u.isPresent(this.elementBinders)},e}();return t.AppProtoView=w,i.define=o,r.exports}),System.register("angular2/src/core/linker/view_manager_utils",["angular2/src/core/di","angular2/src/facade/collection","angular2/src/core/linker/element_injector","angular2/src/facade/lang","angular2/src/core/linker/view","angular2/src/core/linker/element_ref","angular2/src/core/linker/template_ref","angular2/src/core/pipes/pipes"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__decorate||function(e,t,r,n){var i,o=arguments.length,a=3>o?t:null===n?n=Object.getOwnPropertyDescriptor(t,r):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)a=Reflect.decorate(e,t,r,n);else for(var s=e.length-1;s>=0;s--)(i=e[s])&&(a=(3>o?i(a):o>3?i(t,r,a):i(t,r))||a);return o>3&&a&&Object.defineProperty(t,r,a),a},a=this&&this.__metadata||function(e,t){return"object"==typeof Reflect&&"function"==typeof Reflect.metadata?Reflect.metadata(e,t):void 0},s=e("angular2/src/core/di"),c=e("angular2/src/facade/collection"),l=e("angular2/src/core/linker/element_injector"),u=e("angular2/src/facade/lang"),p=e("angular2/src/core/linker/view"),d=e("angular2/src/core/linker/element_ref"),f=e("angular2/src/core/linker/template_ref"),h=e("angular2/src/core/pipes/pipes"),g=function(){function e(){}return e.prototype.getComponentInstance=function(e,t){var r=e.elementInjectors[t];return r.getComponent()},e.prototype.createView=function(e,t,r,n){for(var i=t.fragmentRefs,o=t.viewRef,a=e.mergeInfo.elementCount,s=e.mergeInfo.viewCount,h=c.ListWrapper.createFixedSize(a),g=c.ListWrapper.createFixedSize(a),m=c.ListWrapper.createFixedSize(a),v=c.ListWrapper.createFixedSize(a),y=c.ListWrapper.createFixedSize(s),_=0,b=0,C=0,w=c.ListWrapper.createFixedSize(s),P=0;s>P;P++){var E=w[P],S=u.isPresent(E)?v[E]:null,R=u.isPresent(S)?m[E].view:null,x=u.isPresent(E)?R.proto.elementBinders[E-R.elementOffset].nestedProtoView:e,O=null;(0===P||x.type===p.ViewType.EMBEDDED)&&(O=i[C++]);var D=new p.AppView(n,x,P,_,b,x.protoLocals,o,O,S);y[P]=D,u.isPresent(E)&&(m[E].nestedView=D);for(var T=[],A=P+1,I=0;I<x.elementBinders.length;I++){var k=x.elementBinders[I],N=_+I,V=null;u.isPresent(k.nestedProtoView)&&k.nestedProtoView.isMergable&&(w[A]=N,A+=k.nestedProtoView.mergeInfo.viewCount);var j=k.protoElementInjector;if(u.isPresent(j))if(u.isPresent(j.parent)){var M=v[_+j.parent.index];V=j.instantiate(M)}else V=j.instantiate(null),T.push(V);v[N]=V;var B=new d.ElementRef_(D.ref,N,n);if(h[B.boundElementIndex]=B,u.isPresent(V)){var L=u.isPresent(k.nestedProtoView)&&k.nestedProtoView.type===p.ViewType.EMBEDDED?new f.TemplateRef_(B):null;m[N]=new 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o=0;o<i.rootElementInjectors.length;++o){var a=i.rootElementInjectors[o];a.unlink()}},e.prototype.hydrateViewInContainer=function(e,t,r,n,i,o){u.isBlank(r)&&(r=e,n=t);var a=e.viewContainers[t],c=a.views[i],l=r.elementInjectors[n],p=u.isPresent(o)?s.Injector.fromResolvedProviders(o):null;this._hydrateView(c,p,l.getHost(),r.context,r.locals)},e.prototype._hydrateView=function(e,t,r,n,i){for(var o=e.viewOffset,a=o+e.proto.mergeInfo.viewCount-1;a>=o;){var s=e.views[o],c=s.proto;if(s!==e&&s.proto.type===p.ViewType.EMBEDDED)o+=s.proto.mergeInfo.viewCount;else{s!==e&&(t=null,i=null,r=s.containerElementInjector,n=r.getComponent()),s.context=n,s.locals.parent=i;for(var l=c.elementBinders,d=0;d<l.length;d++){var f=d+s.elementOffset,g=e.elementInjectors[f];u.isPresent(g)&&(g.hydrate(t,r,s.preBuiltObjects[f]),this._populateViewLocals(s,g,f),this._setUpEventEmitters(s,g,f))}var m=u.isPresent(r)?new h.Pipes(s.proto.pipes,r.getInjector()):null;s.changeDetector.hydrate(s.context,s.locals,s,m),o++}}},e.prototype._populateViewLocals=function(e,t,r){u.isPresent(t.getDirectiveVariableBindings())&&t.getDirectiveVariableBindings().forEach(function(n,i){u.isBlank(n)?e.locals.set(i,e.elementRefs[r].nativeElement):e.locals.set(i,t.getDirectiveAtIndex(n))})},e.prototype._setUpEventEmitters=function(e,t,r){for(var n=t.getEventEmitterAccessors(),i=0;i<n.length;++i)for(var o=n[i],a=t.getDirectiveAtIndex(i),s=0;s<o.length;++s){var c=o[s];c.subscribe(e,r,a)}},e.prototype.dehydrateView=function(e){for(var t=e.viewOffset+e.proto.mergeInfo.viewCount-1,r=e.viewOffset;t>=r;r++){var n=e.views[r];if(n.hydrated()){u.isPresent(n.locals)&&n.locals.clearValues(),n.context=null,n.changeDetector.dehydrate();for(var i=n.proto.elementBinders,o=0;o<i.length;o++){var a=e.elementInjectors[n.elementOffset+o];u.isPresent(a)&&a.dehydrate()}}}},e=o([s.Injectable(),a("design:paramtypes",[])],e)}();return t.AppViewManagerUtils=g,n.define=i,r.exports}),System.register("angular2/src/core/linker/directive_lifecycle_reflector",["angular2/src/facade/lang","angular2/src/core/linker/interfaces"],!0,function(e,t,r){function n(e,t){if(!(t instanceof a.Type))return!1;var r=t.prototype;switch(e){case s.LifecycleHooks.AfterContentInit:return!!r.ngAfterContentInit;case s.LifecycleHooks.AfterContentChecked:return!!r.ngAfterContentChecked;case s.LifecycleHooks.AfterViewInit:return!!r.ngAfterViewInit;case s.LifecycleHooks.AfterViewChecked:return!!r.ngAfterViewChecked;case s.LifecycleHooks.OnChanges:return!!r.ngOnChanges;case s.LifecycleHooks.DoCheck:return!!r.ngDoCheck;case s.LifecycleHooks.OnDestroy:return!!r.ngOnDestroy;case s.LifecycleHooks.OnInit:return!!r.ngOnInit;default:return!1}}var i=System.global,o=i.define;i.define=void 0;var a=e("angular2/src/facade/lang"),s=e("angular2/src/core/linker/interfaces");return 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r=e.templateId,n=t.factory.resolveComponentTemplate(r),i=this._beginElement(e,t,n),o=i;n.encapsulation===f.ViewEncapsulation.Native&&(o=t.factory.createShadowRoot(i,r),t.nativeShadowRoots.push(o));var a=0===t.componentCount&&t.isHost,s=new v(i,o,a,n);return t.enqueueComponentBuilder(s),this.parentStack.push(s),null},e.prototype.visitEndComponent=function(e){return this._endElement(),null},e.prototype.visitEmbeddedTemplate=function(e,t){var r=t.factory.createTemplateAnchor(e.attrNameAndValues);return this._addChild(r,e.ngContentIndex,t),t.boundElements.push(r),e.isMerged&&t.enqueueFragmentBuilder(this.parentComponent,this.template,e.children),null},e.prototype._beginElement=function(e,t,r){var n=t.consumeInplaceElement(),i=e.attrNameAndValues,o=this.template.encapsulation===f.ViewEncapsulation.Emulated,a=p.isPresent(r)&&r.encapsulation===f.ViewEncapsulation.Emulated,l=i.length+(o?2:0)+(a?2:0);if(l>i.length){var 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e(e,t,r){this.key=e,this.resolvedFactories=t,this.multiProvider=r}return Object.defineProperty(e.prototype,"resolvedFactory",{get:function(){return this.resolvedFactories[0]},enumerable:!0,configurable:!0}),e}();t.ResolvedProvider_=I;var k=function(){function e(e,t){this.factory=e,this.dependencies=t}return e}();t.ResolvedFactory=k,t.bind=n,t.provide=i;var N=function(){function e(e){this.token=e}return e.prototype.toClass=function(e){if(!b.isType(e))throw new C.BaseException('Trying to create a class provider but "'+b.stringify(e)+'" is not a class!');return new T(this.token,{useClass:e})},e.prototype.toValue=function(e){return new T(this.token,{useValue:e})},e.prototype.toAlias=function(e){if(b.isBlank(e))throw new C.BaseException("Can not alias "+b.stringify(this.token)+" to a blank value!");return new T(this.token,{useExisting:e})},e.prototype.toFactory=function(e,t){if(!b.isFunction(e))throw new C.BaseException('Trying to create a factory provider but "'+b.stringify(e)+'" is not a function!');return new T(this.token,{useFactory:e,deps:t})},e}();t.ProviderBuilder=N,t.resolveFactory=o,t.resolveProvider=a,t.resolveProviders=s;var V=function(){function e(e,t){this.key=e,this.resolvedFactory=t}return e}();return g.define=m,r.exports}),System.register("angular2/src/animate/css_animation_builder",["angular2/src/animate/css_animation_options","angular2/src/animate/animation"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/animate/css_animation_options"),a=e("angular2/src/animate/animation"),s=function(){function e(e){this.browserDetails=e,this.data=new o.CssAnimationOptions}return e.prototype.addAnimationClass=function(e){return this.data.animationClasses.push(e),this},e.prototype.addClass=function(e){return this.data.classesToAdd.push(e),this},e.prototype.removeClass=function(e){return this.data.classesToRemove.push(e),this},e.prototype.setDuration=function(e){return this.data.duration=e,this},e.prototype.setDelay=function(e){return this.data.delay=e,this},e.prototype.setStyles=function(e,t){return this.setFromStyles(e).setToStyles(t)},e.prototype.setFromStyles=function(e){return this.data.fromStyles=e,this},e.prototype.setToStyles=function(e){return this.data.toStyles=e,this},e.prototype.start=function(e){return new a.Animation(e,this.data,this.browserDetails)},e}();return t.CssAnimationBuilder=s,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/dynamic_change_detector",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/facade/collection","angular2/src/core/change_detection/abstract_change_detector","angular2/src/core/change_detection/change_detection_util","angular2/src/core/change_detection/constants","angular2/src/core/change_detection/proto_record"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=e("angular2/src/facade/lang"),s=e("angular2/src/facade/exceptions"),c=e("angular2/src/facade/collection"),l=e("angular2/src/core/change_detection/abstract_change_detector"),u=e("angular2/src/core/change_detection/change_detection_util"),p=e("angular2/src/core/change_detection/constants"),d=e("angular2/src/core/change_detection/proto_record"),f=function(e){function t(t,r,n,i,o,a,s,l,u,p){e.call(this,t,r,n,i,o,a),this._records=s,this._eventBindings=l,this._directiveRecords=u,this._genConfig=p,this.directives=null;var d=s.length+1;this.values=c.ListWrapper.createFixedSize(d),this.localPipes=c.ListWrapper.createFixedSize(d),this.prevContexts=c.ListWrapper.createFixedSize(d),this.changes=c.ListWrapper.createFixedSize(d),this.dehydrateDirectives(!1)}return o(t,e),t.prototype.handleEventInternal=function(e,t,r){var n=this,i=!1;return this._matchingEventBindings(e,t).forEach(function(e){var t=n._processEventBinding(e,r);t===!1&&(i=!0)}),i},t.prototype._processEventBinding=function(e,t){var r=c.ListWrapper.createFixedSize(e.records.length);r[0]=this.values[0];for(var n=0;n<e.records.length;++n){var i=e.records[n];if(i.isSkipRecord())n+=this._computeSkipLength(n,i,r);else{var o=this._calculateCurrValue(i,r,t);if(i.lastInBinding)return this._markPathAsCheckOnce(i),o;this._writeSelf(i,o,r)}}throw new s.BaseException("Cannot be reached")},t.prototype._computeSkipLength=function(e,t,r){if(t.mode===d.RecordType.SkipRecords)return t.fixedArgs[0]-e-1;if(t.mode===d.RecordType.SkipRecordsIf){var n=this._readContext(t,r);return n?t.fixedArgs[0]-e-1:0}if(t.mode===d.RecordType.SkipRecordsIfNot){var n=this._readContext(t,r);return n?0:t.fixedArgs[0]-e-1}throw new s.BaseException("Cannot be reached")},t.prototype._markPathAsCheckOnce=function(e){if(!e.bindingRecord.isDefaultChangeDetection()){var t=e.bindingRecord.directiveRecord;this._getDetectorFor(t.directiveIndex).markPathToRootAsCheckOnce()}},t.prototype._matchingEventBindings=function(e,t){return this._eventBindings.filter(function(r){return r.eventName==e&&r.elIndex===t})},t.prototype.hydrateDirectives=function(t){if(this.values[0]=this.context,this.directives=t,this.strategy===p.ChangeDetectionStrategy.OnPushObserve)for(var r=0;r<this.directiveIndices.length;++r){var n=this.directiveIndices[r];e.prototype.observeDirective.call(this,t.getDirectiveFor(n),r)}},t.prototype.dehydrateDirectives=function(e){e&&this._destroyPipes(),this.values[0]=null,this.directives=null,c.ListWrapper.fill(this.values,u.ChangeDetectionUtil.uninitialized,1),c.ListWrapper.fill(this.changes,!1),c.ListWrapper.fill(this.localPipes,null),c.ListWrapper.fill(this.prevContexts,u.ChangeDetectionUtil.uninitialized)},t.prototype._destroyPipes=function(){for(var e=0;e<this.localPipes.length;++e)a.isPresent(this.localPipes[e])&&u.ChangeDetectionUtil.callPipeOnDestroy(this.localPipes[e])},t.prototype.checkNoChanges=function(){this.runDetectChanges(!0)},t.prototype.detectChangesInRecordsInternal=function(e){for(var t=this._records,r=null,n=!1,i=0;i<t.length;++i){var o=t[i],s=o.bindingRecord,c=s.directiveRecord;if(this._firstInBinding(o)&&(this.propertyBindingIndex=o.propertyBindingIndex),o.isLifeCycleRecord())"DoCheck"!==o.name||e?"OnInit"!==o.name||e||this.state!=p.ChangeDetectorState.NeverChecked?"OnChanges"===o.name&&a.isPresent(r)&&!e&&this._getDirectiveFor(c.directiveIndex).ngOnChanges(r):this._getDirectiveFor(c.directiveIndex).ngOnInit():this._getDirectiveFor(c.directiveIndex).ngDoCheck();else if(o.isSkipRecord())i+=this._computeSkipLength(i,o,this.values);else{var l=this._check(o,e,this.values,this.locals);
+a.isPresent(l)&&(this._updateDirectiveOrElement(l,s),n=!0,r=this._addChange(s,l,r))}o.lastInDirective&&(r=null,n&&!s.isDefaultChangeDetection()&&this._getDetectorFor(c.directiveIndex).markAsCheckOnce(),n=!1)}},t.prototype._firstInBinding=function(e){var t=u.ChangeDetectionUtil.protoByIndex(this._records,e.selfIndex-1);return a.isBlank(t)||t.bindingRecord!==e.bindingRecord},t.prototype.afterContentLifecycleCallbacksInternal=function(){for(var e=this._directiveRecords,t=e.length-1;t>=0;--t){var r=e[t];r.callAfterContentInit&&this.state==p.ChangeDetectorState.NeverChecked&&this._getDirectiveFor(r.directiveIndex).ngAfterContentInit(),r.callAfterContentChecked&&this._getDirectiveFor(r.directiveIndex).ngAfterContentChecked()}},t.prototype.afterViewLifecycleCallbacksInternal=function(){for(var e=this._directiveRecords,t=e.length-1;t>=0;--t){var r=e[t];r.callAfterViewInit&&this.state==p.ChangeDetectorState.NeverChecked&&this._getDirectiveFor(r.directiveIndex).ngAfterViewInit(),r.callAfterViewChecked&&this._getDirectiveFor(r.directiveIndex).ngAfterViewChecked()}},t.prototype._updateDirectiveOrElement=function(t,r){if(a.isBlank(r.directiveRecord))e.prototype.notifyDispatcher.call(this,t.currentValue);else{var n=r.directiveRecord.directiveIndex;r.setter(this._getDirectiveFor(n),t.currentValue)}this._genConfig.logBindingUpdate&&e.prototype.logBindingUpdate.call(this,t.currentValue)},t.prototype._addChange=function(t,r,n){return t.callOnChanges()?e.prototype.addChange.call(this,n,r.previousValue,r.currentValue):n},t.prototype._getDirectiveFor=function(e){return this.directives.getDirectiveFor(e)},t.prototype._getDetectorFor=function(e){return this.directives.getDetectorFor(e)},t.prototype._check=function(e,t,r,n){return e.isPipeRecord()?this._pipeCheck(e,t,r):this._referenceCheck(e,t,r,n)},t.prototype._referenceCheck=function(t,r,n,i){if(this._pureFuncAndArgsDidNotChange(t))return this._setChanged(t,!1),null;var o=this._calculateCurrValue(t,n,i);if(this.strategy===p.ChangeDetectionStrategy.OnPushObserve&&e.prototype.observeValue.call(this,o,t.selfIndex),t.shouldBeChecked()){var a=this._readSelf(t,n);if(u.ChangeDetectionUtil.looseNotIdentical(a,o)){if(t.lastInBinding){var s=u.ChangeDetectionUtil.simpleChange(a,o);return r&&this.throwOnChangeError(a,o),this._writeSelf(t,o,n),this._setChanged(t,!0),s}return this._writeSelf(t,o,n),this._setChanged(t,!0),null}return this._setChanged(t,!1),null}return this._writeSelf(t,o,n),this._setChanged(t,!0),null},t.prototype._calculateCurrValue=function(e,t,r){switch(e.mode){case d.RecordType.Self:return this._readContext(e,t);case d.RecordType.Const:return e.funcOrValue;case d.RecordType.PropertyRead:var n=this._readContext(e,t);return e.funcOrValue(n);case d.RecordType.SafeProperty:var n=this._readContext(e,t);return a.isBlank(n)?null:e.funcOrValue(n);case d.RecordType.PropertyWrite:var n=this._readContext(e,t),i=this._readArgs(e,t)[0];return e.funcOrValue(n,i),i;case d.RecordType.KeyedWrite:var n=this._readContext(e,t),o=this._readArgs(e,t)[0],i=this._readArgs(e,t)[1];return n[o]=i,i;case d.RecordType.Local:return r.get(e.name);case d.RecordType.InvokeMethod:var n=this._readContext(e,t),c=this._readArgs(e,t);return e.funcOrValue(n,c);case d.RecordType.SafeMethodInvoke:var n=this._readContext(e,t);if(a.isBlank(n))return null;var c=this._readArgs(e,t);return e.funcOrValue(n,c);case d.RecordType.KeyedRead:var l=this._readArgs(e,t)[0];return this._readContext(e,t)[l];case d.RecordType.Chain:var c=this._readArgs(e,t);return c[c.length-1];case d.RecordType.InvokeClosure:return a.FunctionWrapper.apply(this._readContext(e,t),this._readArgs(e,t));case d.RecordType.Interpolate:case d.RecordType.PrimitiveOp:case d.RecordType.CollectionLiteral:return a.FunctionWrapper.apply(e.funcOrValue,this._readArgs(e,t));default:throw new s.BaseException("Unknown operation "+e.mode)}},t.prototype._pipeCheck=function(e,t,r){var n=this._readContext(e,r),i=this._pipeFor(e,n);if(!i.pure||this._argsOrContextChanged(e)){var o=this._readArgs(e,r),a=i.pipe.transform(n,o);if(e.shouldBeChecked()){var s=this._readSelf(e,r);if(u.ChangeDetectionUtil.looseNotIdentical(s,a)){if(a=u.ChangeDetectionUtil.unwrapValue(a),e.lastInBinding){var c=u.ChangeDetectionUtil.simpleChange(s,a);return t&&this.throwOnChangeError(s,a),this._writeSelf(e,a,r),this._setChanged(e,!0),c}return this._writeSelf(e,a,r),this._setChanged(e,!0),null}return this._setChanged(e,!1),null}return this._writeSelf(e,a,r),this._setChanged(e,!0),null}},t.prototype._pipeFor=function(e,t){var r=this._readPipe(e);if(a.isPresent(r))return r;var n=this.pipes.get(e.name);return this._writePipe(e,n),n},t.prototype._readContext=function(e,t){return-1==e.contextIndex?this._getDirectiveFor(e.directiveIndex):t[e.contextIndex]},t.prototype._readSelf=function(e,t){return t[e.selfIndex]},t.prototype._writeSelf=function(e,t,r){r[e.selfIndex]=t},t.prototype._readPipe=function(e){return this.localPipes[e.selfIndex]},t.prototype._writePipe=function(e,t){this.localPipes[e.selfIndex]=t},t.prototype._setChanged=function(e,t){e.argumentToPureFunction&&(this.changes[e.selfIndex]=t)},t.prototype._pureFuncAndArgsDidNotChange=function(e){return e.isPureFunction()&&!this._argsChanged(e)},t.prototype._argsChanged=function(e){for(var t=e.args,r=0;r<t.length;++r)if(this.changes[t[r]])return!0;return!1},t.prototype._argsOrContextChanged=function(e){return this._argsChanged(e)||this.changes[e.contextIndex]},t.prototype._readArgs=function(e,t){for(var r=c.ListWrapper.createFixedSize(e.args.length),n=e.args,i=0;i<n.length;++i)r[i]=t[n[i]];return r},t}(l.AbstractChangeDetector);return t.DynamicChangeDetector=f,n.define=i,r.exports}),System.register("angular2/src/core/change_detection/change_detection_jit_generator",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/facade/collection","angular2/src/core/change_detection/abstract_change_detector","angular2/src/core/change_detection/change_detection_util","angular2/src/core/change_detection/proto_record","angular2/src/core/change_detection/codegen_name_util","angular2/src/core/change_detection/codegen_logic_util","angular2/src/core/change_detection/codegen_facade","angular2/src/core/change_detection/constants","angular2/src/core/change_detection/proto_change_detector"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/facade/lang"),a=e("angular2/src/facade/exceptions"),s=e("angular2/src/facade/collection"),c=e("angular2/src/core/change_detection/abstract_change_detector"),l=e("angular2/src/core/change_detection/change_detection_util"),u=e("angular2/src/core/change_detection/proto_record"),p=e("angular2/src/core/change_detection/codegen_name_util"),d=e("angular2/src/core/change_detection/codegen_logic_util"),f=e("angular2/src/core/change_detection/codegen_facade"),h=e("angular2/src/core/change_detection/constants"),g=e("angular2/src/core/change_detection/proto_change_detector"),m="isChanged",v="changes",y=function(){function e(e,t,r,n){this.changeDetectionUtilVarName=t,this.abstractChangeDetectorVarName=r,this.changeDetectorStateVarName=n;var i=g.createPropertyRecords(e),o=g.createEventRecords(e),a=e.bindingRecords.map(function(e){return e.target});this.id=e.id,this.changeDetectionStrategy=e.strategy,this.genConfig=e.genConfig,this.records=i,this.propertyBindingTargets=a,this.eventBindings=o,this.directiveRecords=e.directiveRecords,this._names=new p.CodegenNameUtil(this.records,this.eventBindings,this.directiveRecords,this.changeDetectionUtilVarName),this._logic=new d.CodegenLogicUtil(this._names,this.changeDetectionUtilVarName,this.changeDetectorStateVarName,this.changeDetectionStrategy),this.typeName=p.sanitizeName("ChangeDetector_"+this.id)}return e.prototype.generate=function(){var e="\n "+this.generateSource()+"\n return function(dispatcher) {\n return new "+this.typeName+"(dispatcher);\n }\n ";return new Function(this.abstractChangeDetectorVarName,this.changeDetectionUtilVarName,this.changeDetectorStateVarName,e)(c.AbstractChangeDetector,l.ChangeDetectionUtil,h.ChangeDetectorState)},e.prototype.generateSource=function(){return"\n var "+this.typeName+" = function "+this.typeName+"(dispatcher) {\n "+this.abstractChangeDetectorVarName+".call(\n this, "+JSON.stringify(this.id)+", dispatcher, "+this.records.length+",\n "+this.typeName+".gen_propertyBindingTargets, "+this.typeName+".gen_directiveIndices,\n "+f.codify(this.changeDetectionStrategy)+");\n this.dehydrateDirectives(false);\n }\n\n "+this.typeName+".prototype = Object.create("+this.abstractChangeDetectorVarName+".prototype);\n\n "+this.typeName+".prototype.detectChangesInRecordsInternal = function(throwOnChange) {\n "+this._names.genInitLocals()+"\n var "+m+" = false;\n var "+v+" = null;\n\n "+this._genAllRecords(this.records)+"\n }\n\n "+this._maybeGenHandleEventInternal()+"\n\n "+this._maybeGenAfterContentLifecycleCallbacks()+"\n\n "+this._maybeGenAfterViewLifecycleCallbacks()+"\n\n "+this._maybeGenHydrateDirectives()+"\n\n "+this._maybeGenDehydrateDirectives()+"\n\n "+this._genPropertyBindingTargets()+"\n\n "+this._genDirectiveIndices()+"\n "},e.prototype._genPropertyBindingTargets=function(){var e=this._logic.genPropertyBindingTargets(this.propertyBindingTargets,this.genConfig.genDebugInfo);return this.typeName+".gen_propertyBindingTargets = "+e+";"},e.prototype._genDirectiveIndices=function(){var e=this._logic.genDirectiveIndices(this.directiveRecords);return this.typeName+".gen_directiveIndices = "+e+";"},e.prototype._maybeGenHandleEventInternal=function(){var e=this;if(this.eventBindings.length>0){var t=this.eventBindings.map(function(t){return e._genEventBinding(t)}).join("\n");return"\n "+this.typeName+".prototype.handleEventInternal = function(eventName, elIndex, locals) {\n var "+this._names.getPreventDefaultAccesor()+" = false;\n "+this._names.genInitEventLocals()+"\n "+t+"\n return "+this._names.getPreventDefaultAccesor()+";\n }\n "}return""},e.prototype._genEventBinding=function(e){var t=this,r=[];return this._endOfBlockIdxs=[],s.ListWrapper.forEachWithIndex(e.records,function(n,i){var o;o=n.isConditionalSkipRecord()?t._genConditionalSkip(n,t._names.getEventLocalName(e,i)):n.isUnconditionalSkipRecord()?t._genUnconditionalSkip(n):t._genEventBindingEval(e,n),o+=t._genEndOfSkipBlock(i),r.push(o)}),'\n if (eventName === "'+e.eventName+'" && elIndex === '+e.elIndex+") {\n "+r.join("\n")+"\n }"},e.prototype._genEventBindingEval=function(e,t){if(t.lastInBinding){var r=this._logic.genEventBindingEvalValue(e,t),n=this._genMarkPathToRootAsCheckOnce(t),i=this._genUpdatePreventDefault(e,t);return r+"\n"+n+"\n"+i}return this._logic.genEventBindingEvalValue(e,t)},e.prototype._genMarkPathToRootAsCheckOnce=function(e){var t=e.bindingRecord;return t.isDefaultChangeDetection()?"":this._names.getDetectorName(t.directiveRecord.directiveIndex)+".markPathToRootAsCheckOnce();"},e.prototype._genUpdatePreventDefault=function(e,t){var r=this._names.getEventLocalName(e,t.selfIndex);return"if ("+r+" === false) { "+this._names.getPreventDefaultAccesor()+" = true};"},e.prototype._maybeGenDehydrateDirectives=function(){var e=this._names.genPipeOnDestroy();e&&(e="if (destroyPipes) { "+e+" }");var t=this._names.genDehydrateFields();return e||t?this.typeName+".prototype.dehydrateDirectives = function(destroyPipes) {\n "+e+"\n "+t+"\n }":""},e.prototype._maybeGenHydrateDirectives=function(){var e=this._logic.genHydrateDirectives(this.directiveRecords),t=this._logic.genHydrateDetectors(this.directiveRecords);return e||t?this.typeName+".prototype.hydrateDirectives = function(directives) {\n "+e+"\n "+t+"\n }":""},e.prototype._maybeGenAfterContentLifecycleCallbacks=function(){var e=this._logic.genContentLifecycleCallbacks(this.directiveRecords);if(e.length>0){var t=e.join("\n");return"\n "+this.typeName+".prototype.afterContentLifecycleCallbacksInternal = function() {\n "+t+"\n }\n "}return""},e.prototype._maybeGenAfterViewLifecycleCallbacks=function(){var e=this._logic.genViewLifecycleCallbacks(this.directiveRecords);if(e.length>0){var t=e.join("\n");return"\n "+this.typeName+".prototype.afterViewLifecycleCallbacksInternal = function() {\n "+t+"\n }\n "}return""},e.prototype._genAllRecords=function(e){var t=[];this._endOfBlockIdxs=[];for(var r=0;r<e.length;r++){var n=void 0,i=e[r];n=i.isLifeCycleRecord()?this._genDirectiveLifecycle(i):i.isPipeRecord()?this._genPipeCheck(i):i.isConditionalSkipRecord()?this._genConditionalSkip(i,this._names.getLocalName(i.contextIndex)):i.isUnconditionalSkipRecord()?this._genUnconditionalSkip(i):this._genReferenceCheck(i),n="\n "+this._maybeFirstInBinding(i)+"\n "+n+"\n "+this._maybeGenLastInDirective(i)+"\n "+this._genEndOfSkipBlock(r)+"\n ",t.push(n)}return t.join("\n")},e.prototype._genConditionalSkip=function(e,t){var r=e.mode===u.RecordType.SkipRecordsIf?"!":"";return this._endOfBlockIdxs.push(e.fixedArgs[0]-1),"if ("+r+t+") {"},e.prototype._genUnconditionalSkip=function(e){return this._endOfBlockIdxs.pop(),this._endOfBlockIdxs.push(e.fixedArgs[0]-1),"} else {"},e.prototype._genEndOfSkipBlock=function(e){if(!s.ListWrapper.isEmpty(this._endOfBlockIdxs)){var t=s.ListWrapper.last(this._endOfBlockIdxs);if(e===t)return this._endOfBlockIdxs.pop(),"}"}return""},e.prototype._genDirectiveLifecycle=function(e){if("DoCheck"===e.name)return this._genOnCheck(e);if("OnInit"===e.name)return this._genOnInit(e);if("OnChanges"===e.name)return this._genOnChange(e);throw new a.BaseException("Unknown lifecycle event '"+e.name+"'")},e.prototype._genPipeCheck=function(e){var t=this,r=this._names.getLocalName(e.contextIndex),n=e.args.map(function(e){return t._names.getLocalName(e)}).join(", "),i=this._names.getFieldName(e.selfIndex),o=this._names.getLocalName(e.selfIndex),a=this._names.getPipeName(e.selfIndex),s=e.name,c="\n if ("+a+" === "+this.changeDetectionUtilVarName+".uninitialized) {\n "+a+" = "+this._names.getPipesAccessorName()+".get('"+s+"');\n }\n ",l=o+" = "+a+".pipe.transform("+r+", ["+n+"]);",u=e.args.map(function(e){return t._names.getChangeName(e)});u.push(this._names.getChangeName(e.contextIndex));var p="!"+a+".pure || ("+u.join(" || ")+")",d="\n if ("+this.changeDetectionUtilVarName+".looseNotIdentical("+i+", "+o+")) {\n "+o+" = "+this.changeDetectionUtilVarName+".unwrapValue("+o+")\n "+this._genChangeMarker(e)+"\n "+this._genUpdateDirectiveOrElement(e)+"\n "+this._genAddToChanges(e)+"\n "+i+" = "+o+";\n }\n ",f=e.shouldBeChecked()?""+l+d:l;return e.isUsedByOtherRecord()?c+" if ("+p+") { "+f+" } else { "+o+" = "+i+"; }":c+" if ("+p+") { "+f+" }"},e.prototype._genReferenceCheck=function(e){var t=this,r=this._names.getFieldName(e.selfIndex),n=this._names.getLocalName(e.selfIndex),i="\n "+this._logic.genPropertyBindingEvalValue(e)+"\n ",o="\n if ("+this.changeDetectionUtilVarName+".looseNotIdentical("+r+", "+n+")) {\n "+this._genChangeMarker(e)+"\n "+this._genUpdateDirectiveOrElement(e)+"\n "+this._genAddToChanges(e)+"\n "+r+" = "+n+";\n }\n ",a=e.shouldBeChecked()?""+i+o:i;if(e.isPureFunction()){var s=e.args.map(function(e){return t._names.getChangeName(e)}).join(" || ");return e.isUsedByOtherRecord()?"if ("+s+") { "+a+" } else { "+n+" = "+r+"; }":"if ("+s+") { "+a+" }"}return a},e.prototype._genChangeMarker=function(e){return e.argumentToPureFunction?this._names.getChangeName(e.selfIndex)+" = true":""},e.prototype._genUpdateDirectiveOrElement=function(e){if(!e.lastInBinding)return"";var t=this._names.getLocalName(e.selfIndex),r=this._names.getFieldName(e.selfIndex),n=this.genConfig.logBindingUpdate?"this.logBindingUpdate("+t+");":"",i=e.bindingRecord;if(i.target.isDirective()){var o=this._names.getDirectiveName(i.directiveRecord.directiveIndex)+"."+i.target.name;return"\n "+this._genThrowOnChangeCheck(r,t)+"\n "+o+" = "+t+";\n "+n+"\n "+m+" = true;\n "}return"\n "+this._genThrowOnChangeCheck(r,t)+"\n this.notifyDispatcher("+t+");\n "+n+"\n "},e.prototype._genThrowOnChangeCheck=function(e,t){return o.assertionsEnabled()?"\n if(throwOnChange) {\n this.throwOnChangeError("+e+", "+t+");\n }\n ":""},e.prototype._genAddToChanges=function(e){var t=this._names.getLocalName(e.selfIndex),r=this._names.getFieldName(e.selfIndex);return e.bindingRecord.callOnChanges()?v+" = this.addChange("+v+", "+r+", "+t+");":""},e.prototype._maybeFirstInBinding=function(e){var t=l.ChangeDetectionUtil.protoByIndex(this.records,e.selfIndex-1),r=o.isBlank(t)||t.bindingRecord!==e.bindingRecord;return r&&!e.bindingRecord.isDirectiveLifecycle()?this._names.getPropertyBindingIndex()+" = "+e.propertyBindingIndex+";":""},e.prototype._maybeGenLastInDirective=function(e){return e.lastInDirective?"\n "+v+" = null;\n "+this._genNotifyOnPushDetectors(e)+"\n "+m+" = false;\n ":""},e.prototype._genOnCheck=function(e){var t=e.bindingRecord;return"if (!throwOnChange) "+this._names.getDirectiveName(t.directiveRecord.directiveIndex)+".ngDoCheck();"},e.prototype._genOnInit=function(e){var t=e.bindingRecord;return"if (!throwOnChange && "+this._names.getStateName()+" === "+this.changeDetectorStateVarName+".NeverChecked) "+this._names.getDirectiveName(t.directiveRecord.directiveIndex)+".ngOnInit();"},e.prototype._genOnChange=function(e){var t=e.bindingRecord;return"if (!throwOnChange && "+v+") "+this._names.getDirectiveName(t.directiveRecord.directiveIndex)+".ngOnChanges("+v+");"},e.prototype._genNotifyOnPushDetectors=function(e){var t=e.bindingRecord;if(!e.lastInDirective||t.isDefaultChangeDetection())return"";var r="\n if("+m+") {\n "+this._names.getDetectorName(t.directiveRecord.directiveIndex)+".markAsCheckOnce();\n }\n ";return r},e}();return t.ChangeDetectorJITGenerator=y,n.define=i,r.exports}),System.register("angular2/src/core/linker/view_manager",["angular2/src/core/di","angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/core/linker/view","angular2/src/core/linker/view_ref","angular2/src/core/render/api","angular2/src/core/linker/view_manager_utils","angular2/src/core/linker/view_pool","angular2/src/core/linker/view_listener","angular2/src/core/profile/profile","angular2/src/core/linker/proto_view_factory"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},a=this&&this.__decorate||function(e,t,r,n){var i,o=arguments.length,a=3>o?t:null===n?n=Object.getOwnPropertyDescriptor(t,r):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)a=Reflect.decorate(e,t,r,n);else for(var s=e.length-1;s>=0;s--)(i=e[s])&&(a=(3>o?i(a):o>3?i(t,r,a):i(t,r))||a);return o>3&&a&&Object.defineProperty(t,r,a),a},s=this&&this.__metadata||function(e,t){return"object"==typeof Reflect&&"function"==typeof Reflect.metadata?Reflect.metadata(e,t):void 0},c=this&&this.__param||function(e,t){return function(r,n){t(r,n,e)}},l=e("angular2/src/core/di"),u=e("angular2/src/facade/lang"),p=e("angular2/src/facade/exceptions"),d=e("angular2/src/core/linker/view"),f=e("angular2/src/core/linker/view_ref"),h=e("angular2/src/core/render/api"),g=e("angular2/src/core/linker/view_manager_utils"),m=e("angular2/src/core/linker/view_pool"),v=e("angular2/src/core/linker/view_listener"),y=e("angular2/src/core/profile/profile"),_=e("angular2/src/core/linker/proto_view_factory"),b=function(){function e(){}return e.prototype.getHostElement=function(e){var t=f.internalView(e);if(t.proto.type!==d.ViewType.HOST)throw new p.BaseException("This operation is only allowed on host views");return t.elementRefs[t.elementOffset]},e}();t.AppViewManager=b;var C=function(e){function t(t,r,n,i,o){e.call(this),this._viewPool=t,this._viewListener=r,this._utils=n,this._renderer=i,this._createRootHostViewScope=y.wtfCreateScope("AppViewManager#createRootHostView()"),this._destroyRootHostViewScope=y.wtfCreateScope("AppViewManager#destroyRootHostView()"),this._createEmbeddedViewInContainerScope=y.wtfCreateScope("AppViewManager#createEmbeddedViewInContainer()"),this._createHostViewInContainerScope=y.wtfCreateScope("AppViewManager#createHostViewInContainer()"),this._destroyViewInContainerScope=y.wtfCreateScope("AppViewMananger#destroyViewInContainer()"),this._attachViewInContainerScope=y.wtfCreateScope("AppViewMananger#attachViewInContainer()"),this._detachViewInContainerScope=y.wtfCreateScope("AppViewMananger#detachViewInContainer()"),this._protoViewFactory=o}return o(t,e),t.prototype.getViewContainer=function(e){var t=f.internalView(e.parentView);return t.elementInjectors[e.boundElementIndex].getViewContainerRef()},t.prototype.getNamedElementInComponentView=function(e,t){var r=f.internalView(e.parentView),n=e.boundElementIndex,i=r.getNestedView(n);if(u.isBlank(i))throw new p.BaseException("There is no component directive at element "+n);var o=i.proto.variableLocations.get(t);if(u.isBlank(o))throw new p.BaseException("Could not find variable "+t);return i.elementRefs[i.elementOffset+o]},t.prototype.getComponent=function(e){var t=f.internalView(e.parentView),r=e.boundElementIndex;return this._utils.getComponentInstance(t,r)},t.prototype.createRootHostView=function(e,t,r){var n=this._createRootHostViewScope(),i=f.internalProtoView(e);this._protoViewFactory.initializeProtoViewIfNeeded(i);var o=t;u.isBlank(o)&&(o=i.elementBinders[0].componentDirective.metadata.selector);var a=this._renderer.createRootHostView(i.render,i.mergeInfo.embeddedViewCount+1,o),s=this._createMainView(i,a);return this._renderer.hydrateView(s.render),this._utils.hydrateRootHostView(s,r),y.wtfLeave(n,s.ref)},t.prototype.destroyRootHostView=function(e){var t=this._destroyRootHostViewScope(),r=f.internalView(e);this._renderer.detachFragment(r.renderFragment),this._renderer.dehydrateView(r.render),this._viewDehydrateRecurse(r),this._viewListener.onViewDestroyed(r),this._renderer.destroyView(r.render),y.wtfLeave(t)},t.prototype.createEmbeddedViewInContainer=function(e,t,r){var n=this._createEmbeddedViewInContainerScope(),i=f.internalProtoView(r.protoViewRef);if(i.type!==d.ViewType.EMBEDDED)throw new p.BaseException("This method can only be called with embedded ProtoViews!");return this._protoViewFactory.initializeProtoViewIfNeeded(i),y.wtfLeave(n,this._createViewInContainer(e,t,i,r.elementRef,null))},t.prototype.createHostViewInContainer=function(e,t,r,n){var i=this._createHostViewInContainerScope(),o=f.internalProtoView(r);if(o.type!==d.ViewType.HOST)throw new p.BaseException("This method can only be called with host ProtoViews!");return this._protoViewFactory.initializeProtoViewIfNeeded(o),y.wtfLeave(i,this._createViewInContainer(e,t,o,e,n))},t.prototype._createViewInContainer=function(e,t,r,n,i){var o,a=f.internalView(e.parentView),s=e.boundElementIndex,c=f.internalView(n.parentView),l=n.boundElementIndex,p=c.getNestedView(l);r.type===d.ViewType.EMBEDDED&&u.isPresent(p)&&!p.hydrated()?(o=p,this._attachRenderView(a,s,t,o)):(o=this._createPooledView(r),this._attachRenderView(a,s,t,o),this._renderer.hydrateView(o.render)),this._utils.attachViewInContainer(a,s,c,l,t,o);try{this._utils.hydrateViewInContainer(a,s,c,l,t,i)}catch(h){throw this._utils.detachViewInContainer(a,s,t),h}return o.ref},t.prototype._attachRenderView=function(e,t,r,n){var i=e.elementRefs[t];if(0===r)this._renderer.attachFragmentAfterElement(i,n.renderFragment);else{var o=e.viewContainers[t].views[r-1];this._renderer.attachFragmentAfterFragment(o.renderFragment,n.renderFragment)}},t.prototype.destroyViewInContainer=function(e,t){var r=this._destroyViewInContainerScope(),n=f.internalView(e.parentView),i=e.boundElementIndex;this._destroyViewInContainer(n,i,t),y.wtfLeave(r)},t.prototype.attachViewInContainer=function(e,t,r){var n=this._attachViewInContainerScope(),i=f.internalView(r),o=f.internalView(e.parentView),a=e.boundElementIndex;return this._utils.attachViewInContainer(o,a,null,null,t,i),this._attachRenderView(o,a,t,i),y.wtfLeave(n,r)},t.prototype.detachViewInContainer=function(e,t){var r=this._detachViewInContainerScope(),n=f.internalView(e.parentView),i=e.boundElementIndex,o=n.viewContainers[i],a=o.views[t];return this._utils.detachViewInContainer(n,i,t),this._renderer.detachFragment(a.renderFragment),y.wtfLeave(r,a.ref)},t.prototype._createMainView=function(e,t){var r=this._utils.createView(e,t,this,this._renderer);return this._renderer.setEventDispatcher(r.render,r),this._viewListener.onViewCreated(r),r},t.prototype._createPooledView=function(e){var t=this._viewPool.getView(e);return u.isBlank(t)&&(t=this._createMainView(e,this._renderer.createView(e.render,e.mergeInfo.embeddedViewCount+1))),t},t.prototype._destroyPooledView=function(e){var t=this._viewPool.returnView(e);t||(this._viewListener.onViewDestroyed(e),this._renderer.destroyView(e.render))},t.prototype._destroyViewInContainer=function(e,t,r){var n=e.viewContainers[t],i=n.views[r];this._viewDehydrateRecurse(i),this._utils.detachViewInContainer(e,t,r),i.viewOffset>0?this._renderer.detachFragment(i.renderFragment):(this._renderer.dehydrateView(i.render),this._renderer.detachFragment(i.renderFragment),this._destroyPooledView(i))},t.prototype._viewDehydrateRecurse=function(e){e.hydrated()&&this._utils.dehydrateView(e);for(var t=e.viewContainers,r=e.viewOffset,n=e.viewOffset+e.proto.mergeInfo.viewCount-1,i=e.elementOffset,o=r;n>=o;o++)for(var a=e.views[o],s=0;s<a.proto.elementBinders.length;s++,i++){var c=t[i];if(u.isPresent(c))for(var l=c.views.length-1;l>=0;l--)this._destroyViewInContainer(a,i,l)}},t=a([l.Injectable(),c(4,l.Inject(l.forwardRef(function(){return _.ProtoViewFactory}))),s("design:paramtypes",[m.AppViewPool,v.AppViewListener,g.AppViewManagerUtils,h.Renderer,Object])],t)}(b);return t.AppViewManager_=C,n.define=i,r.exports}),System.register("angular2/src/core/di/injector",["angular2/src/facade/collection","angular2/src/core/di/provider","angular2/src/core/di/exceptions","angular2/src/facade/lang","angular2/src/core/di/key","angular2/src/core/di/metadata"],!0,function(e,t,r){function n(e,t){return e===t||t===h.PublicAndPrivate||e===h.PublicAndPrivate}function i(e,t){for(var r=[],n=0;n<e._proto.numberOfProviders;++n)r.push(t(e._proto.getProviderAtIndex(n)));return r}var o=System.global,a=o.define;o.define=void 0;var s=e("angular2/src/facade/collection"),c=e("angular2/src/core/di/provider"),l=e("angular2/src/core/di/exceptions"),u=e("angular2/src/facade/lang"),p=e("angular2/src/core/di/key"),d=e("angular2/src/core/di/metadata"),f=10;t.UNDEFINED=u.CONST_EXPR(new Object),function(e){e[e.Public=0]="Public",e[e.Private=1]="Private",e[e.PublicAndPrivate=2]="PublicAndPrivate"}(t.Visibility||(t.Visibility={}));var h=t.Visibility,g=function(){function e(e,t){this.provider0=null,this.provider1=null,this.provider2=null,this.provider3=null,this.provider4=null,this.provider5=null,this.provider6=null,this.provider7=null,this.provider8=null,this.provider9=null,this.keyId0=null,this.keyId1=null,this.keyId2=null,this.keyId3=null,this.keyId4=null,this.keyId5=null,this.keyId6=null,this.keyId7=null,this.keyId8=null,this.keyId9=null,this.visibility0=null,this.visibility1=null,this.visibility2=null,this.visibility3=null,this.visibility4=null,this.visibility5=null,this.visibility6=null,this.visibility7=null,this.visibility8=null,this.visibility9=null;var r=t.length;r>0&&(this.provider0=t[0].provider,this.keyId0=t[0].getKeyId(),this.visibility0=t[0].visibility),r>1&&(this.provider1=t[1].provider,this.keyId1=t[1].getKeyId(),this.visibility1=t[1].visibility),r>2&&(this.provider2=t[2].provider,this.keyId2=t[2].getKeyId(),this.visibility2=t[2].visibility),r>3&&(this.provider3=t[3].provider,this.keyId3=t[3].getKeyId(),this.visibility3=t[3].visibility),r>4&&(this.provider4=t[4].provider,this.keyId4=t[4].getKeyId(),this.visibility4=t[4].visibility),r>5&&(this.provider5=t[5].provider,this.keyId5=t[5].getKeyId(),this.visibility5=t[5].visibility),r>6&&(this.provider6=t[6].provider,this.keyId6=t[6].getKeyId(),this.visibility6=t[6].visibility),r>7&&(this.provider7=t[7].provider,this.keyId7=t[7].getKeyId(),this.visibility7=t[7].visibility),r>8&&(this.provider8=t[8].provider,this.keyId8=t[8].getKeyId(),this.visibility8=t[8].visibility),r>9&&(this.provider9=t[9].provider,this.keyId9=t[9].getKeyId(),this.visibility9=t[9].visibility)}return e.prototype.getProviderAtIndex=function(e){if(0==e)return this.provider0;if(1==e)return this.provider1;if(2==e)return this.provider2;if(3==e)return this.provider3;if(4==e)return this.provider4;if(5==e)return this.provider5;if(6==e)return this.provider6;if(7==e)return this.provider7;if(8==e)return this.provider8;if(9==e)return this.provider9;throw new l.OutOfBoundsError(e)},e.prototype.createInjectorStrategy=function(e){return new y(e,this)},e}();t.ProtoInjectorInlineStrategy=g;var m=function(){function e(e,t){var r=t.length;this.providers=s.ListWrapper.createFixedSize(r),this.keyIds=s.ListWrapper.createFixedSize(r),this.visibilities=s.ListWrapper.createFixedSize(r);for(var n=0;r>n;n++)this.providers[n]=t[n].provider,this.keyIds[n]=t[n].getKeyId(),this.visibilities[n]=t[n].visibility}return e.prototype.getProviderAtIndex=function(e){if(0>e||e>=this.providers.length)throw new l.OutOfBoundsError(e);return this.providers[e]},e.prototype.createInjectorStrategy=function(e){return new _(this,e)},e}();t.ProtoInjectorDynamicStrategy=m;var v=function(){function e(e){this.numberOfProviders=e.length,this._strategy=e.length>f?new m(this,e):new g(this,e)}return e.prototype.getProviderAtIndex=function(e){return this._strategy.getProviderAtIndex(e)},e}();t.ProtoInjector=v;var y=function(){function e(e,r){this.injector=e,this.protoStrategy=r,this.obj0=t.UNDEFINED,this.obj1=t.UNDEFINED,this.obj2=t.UNDEFINED,this.obj3=t.UNDEFINED,this.obj4=t.UNDEFINED,this.obj5=t.UNDEFINED,this.obj6=t.UNDEFINED,this.obj7=t.UNDEFINED,this.obj8=t.UNDEFINED,this.obj9=t.UNDEFINED}return e.prototype.resetConstructionCounter=function(){this.injector._constructionCounter=0},e.prototype.instantiateProvider=function(e,t){return this.injector._new(e,t)},e.prototype.attach=function(e,t){var r=this.injector;r._parent=e,r._isHost=t},e.prototype.getObjByKeyId=function(e,r){var i=this.protoStrategy,o=this.injector;return i.keyId0===e&&n(i.visibility0,r)?(this.obj0===t.UNDEFINED&&(this.obj0=o._new(i.provider0,i.visibility0)),this.obj0):i.keyId1===e&&n(i.visibility1,r)?(this.obj1===t.UNDEFINED&&(this.obj1=o._new(i.provider1,i.visibility1)),this.obj1):i.keyId2===e&&n(i.visibility2,r)?(this.obj2===t.UNDEFINED&&(this.obj2=o._new(i.provider2,i.visibility2)),this.obj2):i.keyId3===e&&n(i.visibility3,r)?(this.obj3===t.UNDEFINED&&(this.obj3=o._new(i.provider3,i.visibility3)),this.obj3):i.keyId4===e&&n(i.visibility4,r)?(this.obj4===t.UNDEFINED&&(this.obj4=o._new(i.provider4,i.visibility4)),this.obj4):i.keyId5===e&&n(i.visibility5,r)?(this.obj5===t.UNDEFINED&&(this.obj5=o._new(i.provider5,i.visibility5)),this.obj5):i.keyId6===e&&n(i.visibility6,r)?(this.obj6===t.UNDEFINED&&(this.obj6=o._new(i.provider6,i.visibility6)),this.obj6):i.keyId7===e&&n(i.visibility7,r)?(this.obj7===t.UNDEFINED&&(this.obj7=o._new(i.provider7,i.visibility7)),this.obj7):i.keyId8===e&&n(i.visibility8,r)?(this.obj8===t.UNDEFINED&&(this.obj8=o._new(i.provider8,i.visibility8)),this.obj8):i.keyId9===e&&n(i.visibility9,r)?(this.obj9===t.UNDEFINED&&(this.obj9=o._new(i.provider9,i.visibility9)),this.obj9):t.UNDEFINED},e.prototype.getObjAtIndex=function(e){if(0==e)return this.obj0;if(1==e)return this.obj1;if(2==e)return this.obj2;if(3==e)return this.obj3;if(4==e)return this.obj4;if(5==e)return this.obj5;
+if(6==e)return this.obj6;if(7==e)return this.obj7;if(8==e)return this.obj8;if(9==e)return this.obj9;throw new l.OutOfBoundsError(e)},e.prototype.getMaxNumberOfObjects=function(){return f},e}();t.InjectorInlineStrategy=y;var _=function(){function e(e,r){this.protoStrategy=e,this.injector=r,this.objs=s.ListWrapper.createFixedSize(e.providers.length),s.ListWrapper.fill(this.objs,t.UNDEFINED)}return e.prototype.resetConstructionCounter=function(){this.injector._constructionCounter=0},e.prototype.instantiateProvider=function(e,t){return this.injector._new(e,t)},e.prototype.attach=function(e,t){var r=this.injector;r._parent=e,r._isHost=t},e.prototype.getObjByKeyId=function(e,r){for(var i=this.protoStrategy,o=0;o<i.keyIds.length;o++)if(i.keyIds[o]===e&&n(i.visibilities[o],r))return this.objs[o]===t.UNDEFINED&&(this.objs[o]=this.injector._new(i.providers[o],i.visibilities[o])),this.objs[o];return t.UNDEFINED},e.prototype.getObjAtIndex=function(e){if(0>e||e>=this.objs.length)throw new l.OutOfBoundsError(e);return this.objs[e]},e.prototype.getMaxNumberOfObjects=function(){return this.objs.length},e}();t.InjectorDynamicStrategy=_;var b=function(){function e(e,t){this.provider=e,this.visibility=t}return e.prototype.getKeyId=function(){return this.provider.key.id},e}();t.ProviderWithVisibility=b;var C=function(){function e(e,t,r,n){void 0===t&&(t=null),void 0===r&&(r=null),void 0===n&&(n=null),this._depProvider=r,this._debugContext=n,this._isHost=!1,this._constructionCounter=0,this._proto=e,this._parent=t,this._strategy=e._strategy.createInjectorStrategy(this)}return e.resolve=function(e){return c.resolveProviders(e)},e.resolveAndCreate=function(t){var r=e.resolve(t);return e.fromResolvedProviders(r)},e.fromResolvedProviders=function(t){var r=t.map(function(e){return new b(e,h.Public)}),n=new v(r);return new e(n,null,null)},e.fromResolvedBindings=function(t){return e.fromResolvedProviders(t)},e.prototype.debugContext=function(){return this._debugContext()},e.prototype.get=function(e){return this._getByKey(p.Key.get(e),null,null,!1,h.PublicAndPrivate)},e.prototype.getOptional=function(e){return this._getByKey(p.Key.get(e),null,null,!0,h.PublicAndPrivate)},e.prototype.getAt=function(e){return this._strategy.getObjAtIndex(e)},Object.defineProperty(e.prototype,"parent",{get:function(){return this._parent},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"internalStrategy",{get:function(){return this._strategy},enumerable:!0,configurable:!0}),e.prototype.resolveAndCreateChild=function(t){var r=e.resolve(t);return this.createChildFromResolved(r)},e.prototype.createChildFromResolved=function(t){var r=t.map(function(e){return new b(e,h.Public)}),n=new v(r),i=new e(n,null,null);return i._parent=this,i},e.prototype.resolveAndInstantiate=function(t){return this.instantiateResolved(e.resolve([t])[0])},e.prototype.instantiateResolved=function(e){return this._instantiateProvider(e,h.PublicAndPrivate)},e.prototype._new=function(e,t){if(this._constructionCounter++>this._strategy.getMaxNumberOfObjects())throw new l.CyclicDependencyError(this,e.key);return this._instantiateProvider(e,t)},e.prototype._instantiateProvider=function(e,t){if(e.multiProvider){for(var r=s.ListWrapper.createFixedSize(e.resolvedFactories.length),n=0;n<e.resolvedFactories.length;++n)r[n]=this._instantiate(e,e.resolvedFactories[n],t);return r}return this._instantiate(e,e.resolvedFactories[0],t)},e.prototype._instantiate=function(e,t,r){var 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O},e.prototype._getByDependency=function(e,r,n){var i=u.isPresent(this._depProvider)?this._depProvider.getDependency(this,e,r):t.UNDEFINED;return i!==t.UNDEFINED?i:this._getByKey(r.key,r.lowerBoundVisibility,r.upperBoundVisibility,r.optional,n)},e.prototype._getByKey=function(e,t,r,n,i){return e===w?this:r instanceof d.SelfMetadata?this._getByKeySelf(e,n,i):r instanceof d.HostMetadata?this._getByKeyHost(e,n,i,t):this._getByKeyDefault(e,n,i,t)},e.prototype._throwOrNull=function(e,t){if(t)return null;throw new l.NoProviderError(this,e)},e.prototype._getByKeySelf=function(e,r,n){var i=this._strategy.getObjByKeyId(e.id,n);return i!==t.UNDEFINED?i:this._throwOrNull(e,r)},e.prototype._getByKeyHost=function(e,r,n,i){var o=this;if(i instanceof d.SkipSelfMetadata){if(o._isHost)return this._getPrivateDependency(e,r,o);o=o._parent}for(;null!=o;){var a=o._strategy.getObjByKeyId(e.id,n);if(a!==t.UNDEFINED)return a;if(u.isPresent(o._parent)&&o._isHost)return 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o.define=a,r.exports}),System.register("angular2/src/animate/animation_builder",["angular2/src/core/di","angular2/src/animate/css_animation_builder","angular2/src/animate/browser_details"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=this&&this.__decorate||function(e,t,r,n){var i,o=arguments.length,a=3>o?t:null===n?n=Object.getOwnPropertyDescriptor(t,r):n;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)a=Reflect.decorate(e,t,r,n);else for(var s=e.length-1;s>=0;s--)(i=e[s])&&(a=(3>o?i(a):o>3?i(t,r,a):i(t,r))||a);return o>3&&a&&Object.defineProperty(t,r,a),a},a=this&&this.__metadata||function(e,t){return"object"==typeof Reflect&&"function"==typeof Reflect.metadata?Reflect.metadata(e,t):void 0},s=e("angular2/src/core/di"),c=e("angular2/src/animate/css_animation_builder"),l=e("angular2/src/animate/browser_details"),u=function(){function e(e){this.browserDetails=e}return e.prototype.css=function(){return new 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v.ChangeDetectionUtil.operation_identical;case"!==":return v.ChangeDetectionUtil.operation_not_identical;case"<":return v.ChangeDetectionUtil.operation_less_then;case">":return v.ChangeDetectionUtil.operation_greater_then;case"<=":return v.ChangeDetectionUtil.operation_less_or_equals_then;case">=":return v.ChangeDetectionUtil.operation_greater_or_equals_then;default:throw new h.BaseException("Unsupported operation "+e)}}function l(e){return f.isPresent(e)?""+e:""}function u(e){var t=e.length,r=t>0?e[0]:null,n=t>1?e[1]:null,i=t>2?e[2]:null,o=t>3?e[3]:null,a=t>4?e[4]:null,s=t>5?e[5]:null,c=t>6?e[6]:null,u=t>7?e[7]:null,p=t>8?e[8]:null,d=t>9?e[9]:null;switch(t-1){case 1:return function(e){return r+l(e)+n};case 2:return function(e,t){return r+l(e)+n+l(t)+i};case 3:return function(e,t,a){return r+l(e)+n+l(t)+i+l(a)+o};case 4:return function(e,t,s,c){return r+l(e)+n+l(t)+i+l(s)+o+l(c)+a};case 5:return function(e,t,c,u,p){return r+l(e)+n+l(t)+i+l(c)+o+l(u)+a+l(p)+s};case 6:return 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f=e("angular2/src/facade/lang"),h=e("angular2/src/facade/exceptions"),g=e("angular2/src/facade/collection"),m=e("angular2/src/core/change_detection/parser/ast"),v=e("angular2/src/core/change_detection/change_detection_util"),y=e("angular2/src/core/change_detection/dynamic_change_detector"),_=e("angular2/src/core/change_detection/directive_record"),b=e("angular2/src/core/change_detection/event_binding"),C=e("angular2/src/core/change_detection/coalesce"),w=e("angular2/src/core/change_detection/proto_record"),P=function(){function e(e){this._definition=e,this._propertyBindingRecords=n(e),this._eventBindingRecords=i(e),this._propertyBindingTargets=this._definition.bindingRecords.map(function(e){return e.target}),this._directiveIndices=this._definition.directiveRecords.map(function(e){return e.directiveIndex})}return e.prototype.instantiate=function(e){return new y.DynamicChangeDetector(this._definition.id,e,this._propertyBindingRecords.length,this._propertyBindingTargets,this._directiveIndices,this._definition.strategy,this._propertyBindingRecords,this._eventBindingRecords,this._definition.directiveRecords,this._definition.genConfig)},e}();t.DynamicProtoChangeDetector=P,t.createPropertyRecords=n,t.createEventRecords=i;var E=function(){function e(){this.records=[]}return e.prototype.add=function(e,t,r){var n=g.ListWrapper.last(this.records);f.isPresent(n)&&n.bindingRecord.directiveRecord==e.directiveRecord&&(n.lastInDirective=!1);var i=this.records.length;this._appendRecords(e,t,r);var o=g.ListWrapper.last(this.records);f.isPresent(o)&&o!==n&&(o.lastInBinding=!0,o.lastInDirective=!0,this._setArgumentToPureFunction(i))},e.prototype._setArgumentToPureFunction=function(e){for(var t=this,r=e;r<this.records.length;++r){var n=this.records[r];n.isPureFunction()&&n.args.forEach(function(e){return 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t=e.obj.visit(this),r=e.key.visit(this),n=e.value.visit(this);return this._addRecord(w.RecordType.KeyedWrite,null,null,[r,n],null,t)},e.prototype.visitSafePropertyRead=function(e){var t=e.receiver.visit(this);return this._addRecord(w.RecordType.SafeProperty,e.name,e.getter,[],null,t)},e.prototype.visitMethodCall=function(e){var t=e.receiver.visit(this),r=this._visitAll(e.args);if(f.isPresent(this._variableNames)&&g.ListWrapper.contains(this._variableNames,e.name)){var n=this._addRecord(w.RecordType.Local,e.name,e.name,[],null,t);return this._addRecord(w.RecordType.InvokeClosure,"closure",null,r,null,n)}return this._addRecord(w.RecordType.InvokeMethod,e.name,e.fn,r,null,t)},e.prototype.visitSafeMethodCall=function(e){var t=e.receiver.visit(this),r=this._visitAll(e.args);return this._addRecord(w.RecordType.SafeMethodInvoke,e.name,e.fn,r,null,t)},e.prototype.visitFunctionCall=function(e){var t=e.target.visit(this),r=this._visitAll(e.args);return this._addRecord(w.RecordType.InvokeClosure,"closure",null,r,null,t)},e.prototype.visitLiteralArray=function(e){var t="arrayFn"+e.expressions.length;return this._addRecord(w.RecordType.CollectionLiteral,t,o(e.expressions.length),this._visitAll(e.expressions),null,0)},e.prototype.visitLiteralMap=function(e){return this._addRecord(w.RecordType.CollectionLiteral,a(e.keys),v.ChangeDetectionUtil.mapFn(e.keys),this._visitAll(e.values),null,0)},e.prototype.visitBinary=function(e){var t=e.left.visit(this);switch(e.operation){case"&&":var r=[null];this._addRecord(w.RecordType.SkipRecordsIfNot,"SkipRecordsIfNot",null,[],r,t);var n=e.right.visit(this);return r[0]=n,this._addRecord(w.RecordType.PrimitiveOp,"cond",v.ChangeDetectionUtil.cond,[t,n,t],null,0);case"||":var r=[null];this._addRecord(w.RecordType.SkipRecordsIf,"SkipRecordsIf",null,[],r,t);var n=e.right.visit(this);return r[0]=n,this._addRecord(w.RecordType.PrimitiveOp,"cond",v.ChangeDetectionUtil.cond,[t,t,n],null,0);default:var n=e.right.visit(this);return this._addRecord(w.RecordType.PrimitiveOp,s(e.operation),c(e.operation),[t,n],null,0)}},e.prototype.visitPrefixNot=function(e){var t=e.expression.visit(this);return this._addRecord(w.RecordType.PrimitiveOp,"operation_negate",v.ChangeDetectionUtil.operation_negate,[t],null,0)},e.prototype.visitConditional=function(e){var t=e.condition.visit(this),r=[null],n=[null];this._addRecord(w.RecordType.SkipRecordsIfNot,"SkipRecordsIfNot",null,[],r,t);var i=e.trueExp.visit(this),o=this._addRecord(w.RecordType.SkipRecords,"SkipRecords",null,[],n,0),a=e.falseExp.visit(this);return r[0]=o,n[0]=a,this._addRecord(w.RecordType.PrimitiveOp,"cond",v.ChangeDetectionUtil.cond,[t,i,a],null,0)},e.prototype.visitPipe=function(e){var t=e.exp.visit(this),r=this._visitAll(e.args);return this._addRecord(w.RecordType.Pipe,e.name,e.name,r,null,t)},e.prototype.visitKeyedRead=function(e){var t=e.obj.visit(this),r=e.key.visit(this);return 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t.JitProtoChangeDetector=a,n.define=i,r.exports}),System.register("angular2/src/core/linker/element_injector",["angular2/src/facade/lang","angular2/src/facade/exceptions","angular2/src/facade/async","angular2/src/facade/collection","angular2/src/core/di","angular2/src/core/di/injector","angular2/src/core/di/provider","angular2/src/core/metadata/di","angular2/src/core/linker/view_manager","angular2/src/core/linker/view_container_ref","angular2/src/core/linker/element_ref","angular2/src/core/linker/template_ref","angular2/src/core/metadata/directives","angular2/src/core/linker/directive_lifecycle_reflector","angular2/src/core/change_detection/change_detection","angular2/src/core/linker/query_list","angular2/src/core/reflection/reflection","angular2/src/core/linker/event_config","angular2/src/core/pipes/pipe_provider","angular2/src/core/linker/interfaces","angular2/src/core/linker/view_container_ref"],!0,function(e,t,r){function n(e){var t=e.provider;if(!(t instanceof k))return[];var r=t;return r.eventEmitters.map(function(e){var t=R.EventConfig.parse(e);return new j(t.eventName,S.reflector.getter(t.fieldName))})}function i(e){var t=[];return d.ListWrapper.forEachWithIndex(e,function(e,r){if(e.provider instanceof k){var n=e.provider,i=n.queries;i.forEach(function(e){return t.push(new K(r,e.setter,e.metadata))});var o=n.resolvedFactory.dependencies;o.forEach(function(e){l.isPresent(e.queryDecorator)&&t.push(new K(r,null,e.queryDecorator))})}}),t}var o=System.global,a=o.define;o.define=void 0;var s,c=this&&this.__extends||function(e,t){function r(){this.constructor=e}for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)},l=e("angular2/src/facade/lang"),u=e("angular2/src/facade/exceptions"),p=e("angular2/src/facade/async"),d=e("angular2/src/facade/collection"),f=e("angular2/src/core/di"),h=e("angular2/src/core/di/injector"),g=e("angular2/src/core/di/provider"),m=e("angular2/src/core/metadata/di"),v=e("angular2/src/core/linker/view_manager"),y=e("angular2/src/core/linker/view_container_ref"),_=e("angular2/src/core/linker/element_ref"),b=e("angular2/src/core/linker/template_ref"),C=e("angular2/src/core/metadata/directives"),w=e("angular2/src/core/linker/directive_lifecycle_reflector"),P=e("angular2/src/core/change_detection/change_detection"),E=e("angular2/src/core/linker/query_list"),S=e("angular2/src/core/reflection/reflection"),R=e("angular2/src/core/linker/event_config"),x=e("angular2/src/core/pipes/pipe_provider"),O=e("angular2/src/core/linker/interfaces"),D=e("angular2/src/core/linker/view_container_ref"),T=function(){function e(){this.viewManagerId=f.Key.get(v.AppViewManager).id,this.templateRefId=f.Key.get(b.TemplateRef).id,this.viewContainerId=f.Key.get(y.ViewContainerRef).id,this.changeDetectorRefId=f.Key.get(P.ChangeDetectorRef).id,this.elementRefId=f.Key.get(_.ElementRef).id}return e.instance=function(){return l.isBlank(s)&&(s=new e),s},e}();t.StaticKeys=T;var A=function(){function e(e){l.isPresent(e)?e.addChild(this):this._parent=null}return e.prototype.addChild=function(e){e._parent=this},e.prototype.remove=function(){this._parent=null},Object.defineProperty(e.prototype,"parent",{get:function(){return this._parent},enumerable:!0,configurable:!0}),e}();t.TreeNode=A;var I=function(e){function t(t,r,n,i,o,a,s){e.call(this,t,r,n,i,o),this.attributeName=a,this.queryDecorator=s,this._verify()}return c(t,e),t.prototype._verify=function(){var e=0;if(l.isPresent(this.queryDecorator)&&e++,l.isPresent(this.attributeName)&&e++,e>1)throw new u.BaseException("A directive injectable can contain only one of the following @Attribute or @Query.")},t.createFrom=function(e){return new t(e.key,e.optional,e.lowerBoundVisibility,e.upperBoundVisibility,e.properties,t._attributeName(e.properties),t._query(e.properties))},t._attributeName=function(e){var t=e.find(function(e){return e instanceof m.AttributeMetadata});return l.isPresent(t)?t.attributeName:null},t._query=function(e){return e.find(function(e){return e instanceof m.QueryMetadata})},t}(f.Dependency);t.DirectiveDependency=I;var k=function(e){function t(t,r,n,i,o,a){e.call(this,t,[new g.ResolvedFactory(r,n)],!1),this.metadata=i,this.providers=o,this.viewProviders=a,this.callOnDestroy=w.hasLifecycleHook(O.LifecycleHooks.OnDestroy,t.token)}return c(t,e),Object.defineProperty(t.prototype,"displayName",{get:function(){return this.key.displayName},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"queries",{get:function(){if(l.isBlank(this.metadata.queries))return[];var e=[];return d.StringMapWrapper.forEach(this.metadata.queries,function(t,r){var n=S.reflector.setter(r);e.push(new V(n,t))}),e},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"eventEmitters",{get:function(){return l.isPresent(this.metadata)&&l.isPresent(this.metadata.outputs)?this.metadata.outputs:[]},enumerable:!0,configurable:!0}),t.createFromProvider=function(e,r){l.isBlank(r)&&(r=new C.DirectiveMetadata);var n=g.resolveProvider(e),i=n.resolvedFactories[0],o=i.dependencies.map(I.createFrom),a=l.isPresent(r.providers)?r.providers:[],s=r instanceof C.ComponentMetadata&&l.isPresent(r.viewProviders)?r.viewProviders:[];return new t(n.key,i.factory,o,r,a,s)},t.createFromType=function(e,r){var n=new f.Provider(e,{useClass:e});return t.createFromProvider(n,r)},t}(g.ResolvedProvider_);t.DirectiveProvider=k;var N=function(){function e(e,t,r,n){this.viewManager=e,this.view=t,this.elementRef=r,this.templateRef=n,this.nestedView=null}return e}();t.PreBuiltObjects=N;var V=function(){function e(e,t){this.setter=e,this.metadata=t}return e}();t.QueryMetadataWithSetter=V;var j=function(){function e(e,t){this.eventName=e,this.getter=t}return e.prototype.subscribe=function(e,t,r){var n=this,i=this.getter(r);return p.ObservableWrapper.subscribe(i,function(r){return e.triggerEventHandlers(n.eventName,r,t)})},e}();t.EventEmitterAccessor=j;var M=function(){function e(e,t,r,o,a,s){this.parent=e,this.index=t,this.distanceToParent=o,this.directiveVariableBindings=s,this._firstProviderIsComponent=a;var c=r.length;this.protoInjector=new h.ProtoInjector(r),this.eventEmitterAccessors=d.ListWrapper.createFixedSize(c);for(var l=0;c>l;++l)this.eventEmitterAccessors[l]=n(r[l]);this.protoQueryRefs=i(r)}return e.create=function(t,r,n,i,o,a){var s=[];return e._createDirectiveProviderWithVisibility(n,s,i),i&&e._createViewProvidersWithVisibility(n,s),e._createProvidersWithVisibility(n,s),new e(t,r,s,o,i,a)},e._createDirectiveProviderWithVisibility=function(t,r,n){t.forEach(function(i){r.push(e._createProviderWithVisibility(n,i,t,i))})},e._createProvidersWithVisibility=function(e,t){var r=[];e.forEach(function(e){r=d.ListWrapper.concat(r,e.providers)});var n=f.Injector.resolve(r);n.forEach(function(e){return t.push(new h.ProviderWithVisibility(e,h.Visibility.Public))})},e._createProviderWithVisibility=function(e,t,r,n){var i=e&&r[0]===t;return new h.ProviderWithVisibility(n,i?h.Visibility.PublicAndPrivate:h.Visibility.Public)},e._createViewProvidersWithVisibility=function(e,t){var r=f.Injector.resolve(e[0].viewProviders);r.forEach(function(e){return t.push(new h.ProviderWithVisibility(e,h.Visibility.Private))})},e.prototype.instantiate=function(e){return new L(this,e)},e.prototype.directParent=function(){return this.distanceToParent<2?this.parent:null},Object.defineProperty(e.prototype,"hasBindings",{get:function(){return this.eventEmitterAccessors.length>0},enumerable:!0,configurable:!0}),e.prototype.getProviderAtIndex=function(e){return this.protoInjector.getProviderAtIndex(e)},e}();t.ProtoElementInjector=M;var B=function(){function e(e,t,r){this.element=e,this.componentElement=t,this.injector=r}return e}(),L=function(e){function t(t,r){var n=this;e.call(this,r),this._preBuiltObjects=null,this._proto=t,this._injector=new f.Injector(this._proto.protoInjector,null,this,function(){return n._debugContext()});var i=this._injector.internalStrategy;this._strategy=i instanceof h.InjectorInlineStrategy?new q(i,this):new G(i,this),this.hydrated=!1,this._queryStrategy=this._buildQueryStrategy()}return c(t,e),t.prototype.dehydrate=function(){this.hydrated=!1,this._host=null,this._preBuiltObjects=null,this._strategy.callOnDestroy(),this._strategy.dehydrate(),this._queryStrategy.dehydrate()},t.prototype.hydrate=function(e,t,r){this._host=t,this._preBuiltObjects=r,this._reattachInjectors(e),this._queryStrategy.hydrate(),this._strategy.hydrate(),this.hydrated=!0},t.prototype._debugContext=function(){var e=this._preBuiltObjects,t=e.elementRef.boundElementIndex-e.view.elementOffset,r=this._preBuiltObjects.view.getDebugContext(t,null);return l.isPresent(r)?new B(r.element,r.componentElement,r.injector):null},t.prototype._reattachInjectors=function(e){l.isPresent(this._parent)?l.isPresent(e)?(this._reattachInjector(this._injector,e,!1),this._reattachInjector(e,this._parent._injector,!1)):this._reattachInjector(this._injector,this._parent._injector,!1):l.isPresent(this._host)?l.isPresent(e)?(this._reattachInjector(this._injector,e,!1),this._reattachInjector(e,this._host._injector,!0)):this._reattachInjector(this._injector,this._host._injector,!0):l.isPresent(e)&&this._reattachInjector(this._injector,e,!0)},t.prototype._reattachInjector=function(e,t,r){e.internalStrategy.attach(t,r)},t.prototype.hasVariableBinding=function(e){var t=this._proto.directiveVariableBindings;return l.isPresent(t)&&t.has(e)},t.prototype.getVariableBinding=function(e){var t=this._proto.directiveVariableBindings.get(e);return l.isPresent(t)?this.getDirectiveAtIndex(t):this.getElementRef()},t.prototype.get=function(e){return this._injector.get(e)},t.prototype.hasDirective=function(e){return l.isPresent(this._injector.getOptional(e))},t.prototype.getEventEmitterAccessors=function(){return this._proto.eventEmitterAccessors},t.prototype.getDirectiveVariableBindings=function(){return this._proto.directiveVariableBindings},t.prototype.getComponent=function(){return this._strategy.getComponent()},t.prototype.getInjector=function(){return this._injector},t.prototype.getElementRef=function(){return this._preBuiltObjects.elementRef},t.prototype.getViewContainerRef=function(){return new D.ViewContainerRef_(this._preBuiltObjects.viewManager,this.getElementRef())},t.prototype.getNestedView=function(){return this._preBuiltObjects.nestedView},t.prototype.getView=function(){return this._preBuiltObjects.view},t.prototype.directParent=function(){return this._proto.distanceToParent<2?this.parent:null},t.prototype.isComponentKey=function(e){return this._strategy.isComponentKey(e)},t.prototype.getDependency=function(e,t,r){var n=r.key;if(t instanceof k){var i=r,o=t,a=T.instance();if(n.id===a.viewManagerId)return this._preBuiltObjects.viewManager;if(l.isPresent(i.attributeName))return this._buildAttribute(i);if(l.isPresent(i.queryDecorator))return this._queryStrategy.findQuery(i.queryDecorator).list;if(i.key.id===T.instance().changeDetectorRefId){if(o.metadata instanceof C.ComponentMetadata){var s=this._preBuiltObjects.view.getNestedView(this._preBuiltObjects.elementRef.boundElementIndex);return s.changeDetector.ref}return this._preBuiltObjects.view.changeDetector.ref}if(i.key.id===T.instance().elementRefId)return this.getElementRef();
+if(i.key.id===T.instance().viewContainerId)return this.getViewContainerRef();if(i.key.id===T.instance().templateRefId){if(l.isBlank(this._preBuiltObjects.templateRef)){if(i.optional)return null;throw new f.NoProviderError(null,i.key)}return this._preBuiltObjects.templateRef}}else if(t instanceof x.PipeProvider&&r.key.id===T.instance().changeDetectorRefId){var s=this._preBuiltObjects.view.getNestedView(this._preBuiltObjects.elementRef.boundElementIndex);return s.changeDetector.ref}return h.UNDEFINED},t.prototype._buildAttribute=function(e){var t=this._proto.attributes;return l.isPresent(t)&&t.has(e.attributeName)?t.get(e.attributeName):null},t.prototype.addDirectivesMatchingQuery=function(e,t){var r=l.isBlank(this._preBuiltObjects)?null:this._preBuiltObjects.templateRef;e.selector===b.TemplateRef&&l.isPresent(r)&&t.push(r),this._strategy.addDirectivesMatchingQuery(e,t)},t.prototype._buildQueryStrategy=function(){return 0===this._proto.protoQueryRefs.length?W:this._proto.protoQueryRefs.length<=U.NUMBER_OF_SUPPORTED_QUERIES?new U(this):new H(this)},t.prototype.link=function(e){e.addChild(this)},t.prototype.unlink=function(){this.remove()},t.prototype.getDirectiveAtIndex=function(e){return this._injector.getAt(e)},t.prototype.hasInstances=function(){return this._proto.hasBindings&&this.hydrated},t.prototype.getHost=function(){return this._host},t.prototype.getBoundElementIndex=function(){return this._proto.index},t.prototype.getRootViewInjectors=function(){if(!this.hydrated)return[];var e=this._preBuiltObjects.view,t=e.getNestedView(e.elementOffset+this.getBoundElementIndex());return l.isPresent(t)?t.rootElementInjectors:[]},t.prototype.ngAfterViewChecked=function(){this._queryStrategy.updateViewQueries()},t.prototype.ngAfterContentChecked=function(){this._queryStrategy.updateContentQueries()},t.prototype.traverseAndSetQueriesAsDirty=function(){for(var e=this;l.isPresent(e);)e._setQueriesAsDirty(),e=e.parent},t.prototype._setQueriesAsDirty=function(){this._queryStrategy.setContentQueriesAsDirty(),l.isPresent(this._host)&&this._host._queryStrategy.setViewQueriesAsDirty()},t}(A);t.ElementInjector=L;var F=function(){function e(){}return e.prototype.setContentQueriesAsDirty=function(){},e.prototype.setViewQueriesAsDirty=function(){},e.prototype.hydrate=function(){},e.prototype.dehydrate=function(){},e.prototype.updateContentQueries=function(){},e.prototype.updateViewQueries=function(){},e.prototype.findQuery=function(e){throw new u.BaseException("Cannot find query for directive "+e+".")},e}(),W=new F,U=function(){function e(e){var t=e._proto.protoQueryRefs;t.length>0&&(this.query0=new z(t[0],e)),t.length>1&&(this.query1=new z(t[1],e)),t.length>2&&(this.query2=new z(t[2],e))}return e.prototype.setContentQueriesAsDirty=function(){l.isPresent(this.query0)&&!this.query0.isViewQuery&&(this.query0.dirty=!0),l.isPresent(this.query1)&&!this.query1.isViewQuery&&(this.query1.dirty=!0),l.isPresent(this.query2)&&!this.query2.isViewQuery&&(this.query2.dirty=!0)},e.prototype.setViewQueriesAsDirty=function(){l.isPresent(this.query0)&&this.query0.isViewQuery&&(this.query0.dirty=!0),l.isPresent(this.query1)&&this.query1.isViewQuery&&(this.query1.dirty=!0),l.isPresent(this.query2)&&this.query2.isViewQuery&&(this.query2.dirty=!0)},e.prototype.hydrate=function(){l.isPresent(this.query0)&&this.query0.hydrate(),l.isPresent(this.query1)&&this.query1.hydrate(),l.isPresent(this.query2)&&this.query2.hydrate()},e.prototype.dehydrate=function(){l.isPresent(this.query0)&&this.query0.dehydrate(),l.isPresent(this.query1)&&this.query1.dehydrate(),l.isPresent(this.query2)&&this.query2.dehydrate()},e.prototype.updateContentQueries=function(){l.isPresent(this.query0)&&!this.query0.isViewQuery&&this.query0.update(),l.isPresent(this.query1)&&!this.query1.isViewQuery&&this.query1.update(),l.isPresent(this.query2)&&!this.query2.isViewQuery&&this.query2.update()},e.prototype.updateViewQueries=function(){l.isPresent(this.query0)&&this.query0.isViewQuery&&this.query0.update(),l.isPresent(this.query1)&&this.query1.isViewQuery&&this.query1.update(),l.isPresent(this.query2)&&this.query2.isViewQuery&&this.query2.update()},e.prototype.findQuery=function(e){if(l.isPresent(this.query0)&&this.query0.protoQueryRef.query===e)return this.query0;if(l.isPresent(this.query1)&&this.query1.protoQueryRef.query===e)return this.query1;if(l.isPresent(this.query2)&&this.query2.protoQueryRef.query===e)return this.query2;throw new u.BaseException("Cannot find query for directive "+e+".")},e.NUMBER_OF_SUPPORTED_QUERIES=3,e}(),H=function(){function e(e){this.queries=e._proto.protoQueryRefs.map(function(t){return new z(t,e)})}return e.prototype.setContentQueriesAsDirty=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.isViewQuery||(t.dirty=!0)}},e.prototype.setViewQueriesAsDirty=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.isViewQuery&&(t.dirty=!0)}},e.prototype.hydrate=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.hydrate()}},e.prototype.dehydrate=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.dehydrate()}},e.prototype.updateContentQueries=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.isViewQuery||t.update()}},e.prototype.updateViewQueries=function(){for(var e=0;e<this.queries.length;++e){var t=this.queries[e];t.isViewQuery&&t.update()}},e.prototype.findQuery=function(e){for(var t=0;t<this.queries.length;++t){var r=this.queries[t];if(r.protoQueryRef.query===e)return r}throw new u.BaseException("Cannot find query for directive "+e+".")},e}(),q=function(){function e(e,t){this.injectorStrategy=e,this._ei=t}return e.prototype.hydrate=function(){var e=this.injectorStrategy,t=e.protoStrategy;e.resetConstructionCounter(),t.provider0 instanceof k&&l.isPresent(t.keyId0)&&e.obj0===h.UNDEFINED&&(e.obj0=e.instantiateProvider(t.provider0,t.visibility0)),t.provider1 instanceof k&&l.isPresent(t.keyId1)&&e.obj1===h.UNDEFINED&&(e.obj1=e.instantiateProvider(t.provider1,t.visibility1)),t.provider2 instanceof k&&l.isPresent(t.keyId2)&&e.obj2===h.UNDEFINED&&(e.obj2=e.instantiateProvider(t.provider2,t.visibility2)),t.provider3 instanceof k&&l.isPresent(t.keyId3)&&e.obj3===h.UNDEFINED&&(e.obj3=e.instantiateProvider(t.provider3,t.visibility3)),t.provider4 instanceof k&&l.isPresent(t.keyId4)&&e.obj4===h.UNDEFINED&&(e.obj4=e.instantiateProvider(t.provider4,t.visibility4)),t.provider5 instanceof k&&l.isPresent(t.keyId5)&&e.obj5===h.UNDEFINED&&(e.obj5=e.instantiateProvider(t.provider5,t.visibility5)),t.provider6 instanceof k&&l.isPresent(t.keyId6)&&e.obj6===h.UNDEFINED&&(e.obj6=e.instantiateProvider(t.provider6,t.visibility6)),t.provider7 instanceof k&&l.isPresent(t.keyId7)&&e.obj7===h.UNDEFINED&&(e.obj7=e.instantiateProvider(t.provider7,t.visibility7)),t.provider8 instanceof k&&l.isPresent(t.keyId8)&&e.obj8===h.UNDEFINED&&(e.obj8=e.instantiateProvider(t.provider8,t.visibility8)),t.provider9 instanceof k&&l.isPresent(t.keyId9)&&e.obj9===h.UNDEFINED&&(e.obj9=e.instantiateProvider(t.provider9,t.visibility9))},e.prototype.dehydrate=function(){var e=this.injectorStrategy;e.obj0=h.UNDEFINED,e.obj1=h.UNDEFINED,e.obj2=h.UNDEFINED,e.obj3=h.UNDEFINED,e.obj4=h.UNDEFINED,e.obj5=h.UNDEFINED,e.obj6=h.UNDEFINED,e.obj7=h.UNDEFINED,e.obj8=h.UNDEFINED,e.obj9=h.UNDEFINED},e.prototype.callOnDestroy=function(){var e=this.injectorStrategy,t=e.protoStrategy;t.provider0 instanceof k&&t.provider0.callOnDestroy&&e.obj0.ngOnDestroy(),t.provider1 instanceof k&&t.provider1.callOnDestroy&&e.obj1.ngOnDestroy(),t.provider2 instanceof k&&t.provider2.callOnDestroy&&e.obj2.ngOnDestroy(),t.provider3 instanceof k&&t.provider3.callOnDestroy&&e.obj3.ngOnDestroy(),t.provider4 instanceof k&&t.provider4.callOnDestroy&&e.obj4.ngOnDestroy(),t.provider5 instanceof k&&t.provider5.callOnDestroy&&e.obj5.ngOnDestroy(),t.provider6 instanceof k&&t.provider6.callOnDestroy&&e.obj6.ngOnDestroy(),t.provider7 instanceof k&&t.provider7.callOnDestroy&&e.obj7.ngOnDestroy(),t.provider8 instanceof k&&t.provider8.callOnDestroy&&e.obj8.ngOnDestroy(),t.provider9 instanceof k&&t.provider9.callOnDestroy&&e.obj9.ngOnDestroy()},e.prototype.getComponent=function(){return this.injectorStrategy.obj0},e.prototype.isComponentKey=function(e){return this._ei._proto._firstProviderIsComponent&&l.isPresent(e)&&e.id===this.injectorStrategy.protoStrategy.keyId0},e.prototype.addDirectivesMatchingQuery=function(e,t){var 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e(e,t){this.injectorStrategy=e,this._ei=t}return e.prototype.hydrate=function(){var e=this.injectorStrategy,t=e.protoStrategy;e.resetConstructionCounter();for(var r=0;r<t.keyIds.length;r++)t.providers[r]instanceof k&&l.isPresent(t.keyIds[r])&&e.objs[r]===h.UNDEFINED&&(e.objs[r]=e.instantiateProvider(t.providers[r],t.visibilities[r]))},e.prototype.dehydrate=function(){var e=this.injectorStrategy;d.ListWrapper.fill(e.objs,h.UNDEFINED)},e.prototype.callOnDestroy=function(){for(var e=this.injectorStrategy,t=e.protoStrategy,r=0;r<t.providers.length;r++)t.providers[r]instanceof k&&t.providers[r].callOnDestroy&&e.objs[r].ngOnDestroy()},e.prototype.getComponent=function(){return this.injectorStrategy.objs[0]},e.prototype.isComponentKey=function(e){var t=this.injectorStrategy.protoStrategy;return this._ei._proto._firstProviderIsComponent&&l.isPresent(e)&&e.id===t.keyIds[0]},e.prototype.addDirectivesMatchingQuery=function(e,t){for(var r=this.injectorStrategy,n=r.protoStrategy,i=0;i<n.providers.length;i++)n.providers[i].key.token===e.selector&&(r.objs[i]===h.UNDEFINED&&(r.objs[i]=r.instantiateProvider(n.providers[i],n.visibilities[i])),t.push(r.objs[i]))},e}(),K=function(){function e(e,t,r){this.dirIndex=e,this.setter=t,this.query=r}return Object.defineProperty(e.prototype,"usesPropertySyntax",{get:function(){return l.isPresent(this.setter)},enumerable:!0,configurable:!0}),e}();t.ProtoQueryRef=K;var z=function(){function e(e,t){this.protoQueryRef=e,this.originator=t}return Object.defineProperty(e.prototype,"isViewQuery",{get:function(){return this.protoQueryRef.query.isViewQuery},enumerable:!0,configurable:!0}),e.prototype.update=function(){if(this.dirty){if(this._update(),this.dirty=!1,this.protoQueryRef.usesPropertySyntax){var e=this.originator.getDirectiveAtIndex(this.protoQueryRef.dirIndex);this.protoQueryRef.query.first?this.protoQueryRef.setter(e,this.list.length>0?this.list.first:null):this.protoQueryRef.setter(e,this.list)}this.list.notifyOnChanges()}},e.prototype._update=function(){var e=[];if(this.protoQueryRef.query.isViewQuery){var t=this.originator.getView(),r=t.getNestedView(t.elementOffset+this.originator.getBoundElementIndex());l.isPresent(r)&&this._visitView(r,e)}else this._visit(this.originator,e);this.list.reset(e)},e.prototype._visit=function(e,t){for(var r=e.getView(),n=r.elementOffset+e._proto.index,i=n;i<r.elementOffset+r.ownBindersCount;i++){var o=r.elementInjectors[i];if(!l.isBlank(o)){if(i>n&&(l.isBlank(o)||l.isBlank(o.parent)||r.elementOffset+o.parent._proto.index<n))break;if(this.protoQueryRef.query.descendants||o.parent==this.originator||o==this.originator){this._visitInjector(o,t);var a=r.viewContainers[i];l.isPresent(a)&&this._visitViewContainer(a,t)}}}},e.prototype._visitInjector=function(e,t){this.protoQueryRef.query.isVarBindingQuery?this._aggregateVariableBinding(e,t):this._aggregateDirective(e,t)},e.prototype._visitViewContainer=function(e,t){for(var r=0;r<e.views.length;r++)this._visitView(e.views[r],t)},e.prototype._visitView=function(e,t){for(var r=e.elementOffset;r<e.elementOffset+e.ownBindersCount;r++){var n=e.elementInjectors[r];if(!l.isBlank(n)){this._visitInjector(n,t);var i=e.viewContainers[r];l.isPresent(i)&&this._visitViewContainer(i,t)}}},e.prototype._aggregateVariableBinding=function(e,t){for(var r=this.protoQueryRef.query.varBindings,n=0;n<r.length;++n)e.hasVariableBinding(r[n])&&t.push(e.getVariableBinding(r[n]))},e.prototype._aggregateDirective=function(e,t){e.addDirectivesMatchingQuery(this.protoQueryRef.query,t)},e.prototype.dehydrate=function(){this.list=null},e.prototype.hydrate=function(){this.list=new E.QueryList,this.dirty=!0},e}();return t.QueryRef=z,o.define=a,r.exports}),System.register("angular2/src/core/di",["angular2/src/core/di/metadata","angular2/src/core/di/decorators","angular2/src/core/di/forward_ref","angular2/src/core/di/injector","angular2/src/core/di/provider","angular2/src/core/di/key","angular2/src/core/di/exceptions","angular2/src/core/di/opaque_token"],!0,function(e,t,r){function n(e){for(var r in e)t.hasOwnProperty(r)||(t[r]=e[r])}var i=System.global,o=i.define;i.define=void 0;var a=e("angular2/src/core/di/metadata");t.InjectMetadata=a.InjectMetadata,t.OptionalMetadata=a.OptionalMetadata,t.InjectableMetadata=a.InjectableMetadata,t.SelfMetadata=a.SelfMetadata,t.HostMetadata=a.HostMetadata,t.SkipSelfMetadata=a.SkipSelfMetadata,t.DependencyMetadata=a.DependencyMetadata,n(e("angular2/src/core/di/decorators"));var s=e("angular2/src/core/di/forward_ref");t.forwardRef=s.forwardRef,t.resolveForwardRef=s.resolveForwardRef;var c=e("angular2/src/core/di/injector");t.Injector=c.Injector;var l=e("angular2/src/core/di/provider");t.Binding=l.Binding,t.ProviderBuilder=l.ProviderBuilder,t.ResolvedFactory=l.ResolvedFactory,t.Dependency=l.Dependency,t.bind=l.bind,t.Provider=l.Provider,t.provide=l.provide;var u=e("angular2/src/core/di/key");t.Key=u.Key,t.TypeLiteral=u.TypeLiteral;var p=e("angular2/src/core/di/exceptions");t.NoProviderError=p.NoProviderError,t.AbstractProviderError=p.AbstractProviderError,t.CyclicDependencyError=p.CyclicDependencyError,t.InstantiationError=p.InstantiationError,t.InvalidProviderError=p.InvalidProviderError,t.NoAnnotationError=p.NoAnnotationError,t.OutOfBoundsError=p.OutOfBoundsError;var d=e("angular2/src/core/di/opaque_token");return t.OpaqueToken=d.OpaqueToken,i.define=o,r.exports}),System.register("angular2/src/core/change_detection/change_detection",["angular2/src/core/change_detection/differs/iterable_differs","angular2/src/core/change_detection/differs/default_iterable_differ","angular2/src/core/change_detection/differs/keyvalue_differs","angular2/src/core/change_detection/differs/default_keyvalue_differ","angular2/src/facade/lang","angular2/src/core/change_detection/parser/ast","angular2/src/core/change_detection/parser/lexer","angular2/src/core/change_detection/parser/parser","angular2/src/core/change_detection/parser/locals","angular2/src/core/change_detection/exceptions","angular2/src/core/change_detection/interfaces","angular2/src/core/change_detection/constants","angular2/src/core/change_detection/proto_change_detector","angular2/src/core/change_detection/jit_proto_change_detector","angular2/src/core/change_detection/binding_record","angular2/src/core/change_detection/directive_record","angular2/src/core/change_detection/dynamic_change_detector","angular2/src/core/change_detection/change_detector_ref","angular2/src/core/change_detection/differs/iterable_differs","angular2/src/core/change_detection/differs/keyvalue_differs","angular2/src/core/change_detection/change_detection_util"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/core/change_detection/differs/iterable_differs"),a=e("angular2/src/core/change_detection/differs/default_iterable_differ"),s=e("angular2/src/core/change_detection/differs/keyvalue_differs"),c=e("angular2/src/core/change_detection/differs/default_keyvalue_differ"),l=e("angular2/src/facade/lang"),u=e("angular2/src/core/change_detection/parser/ast");t.ASTWithSource=u.ASTWithSource,t.AST=u.AST,t.AstTransformer=u.AstTransformer,t.PropertyRead=u.PropertyRead,t.LiteralArray=u.LiteralArray,t.ImplicitReceiver=u.ImplicitReceiver;var p=e("angular2/src/core/change_detection/parser/lexer");t.Lexer=p.Lexer;var d=e("angular2/src/core/change_detection/parser/parser");t.Parser=d.Parser;var f=e("angular2/src/core/change_detection/parser/locals");t.Locals=f.Locals;var h=e("angular2/src/core/change_detection/exceptions");t.DehydratedException=h.DehydratedException,t.ExpressionChangedAfterItHasBeenCheckedException=h.ExpressionChangedAfterItHasBeenCheckedException,t.ChangeDetectionError=h.ChangeDetectionError;var g=e("angular2/src/core/change_detection/interfaces");t.ChangeDetectorDefinition=g.ChangeDetectorDefinition,t.DebugContext=g.DebugContext,t.ChangeDetectorGenConfig=g.ChangeDetectorGenConfig;var m=e("angular2/src/core/change_detection/constants");t.ChangeDetectionStrategy=m.ChangeDetectionStrategy,t.CHANGE_DETECTION_STRATEGY_VALUES=m.CHANGE_DETECTION_STRATEGY_VALUES;var v=e("angular2/src/core/change_detection/proto_change_detector");t.DynamicProtoChangeDetector=v.DynamicProtoChangeDetector;var y=e("angular2/src/core/change_detection/jit_proto_change_detector");t.JitProtoChangeDetector=y.JitProtoChangeDetector;var _=e("angular2/src/core/change_detection/binding_record");t.BindingRecord=_.BindingRecord,t.BindingTarget=_.BindingTarget;var b=e("angular2/src/core/change_detection/directive_record");t.DirectiveIndex=b.DirectiveIndex,t.DirectiveRecord=b.DirectiveRecord;var C=e("angular2/src/core/change_detection/dynamic_change_detector");t.DynamicChangeDetector=C.DynamicChangeDetector;var w=e("angular2/src/core/change_detection/change_detector_ref");t.ChangeDetectorRef=w.ChangeDetectorRef;var P=e("angular2/src/core/change_detection/differs/iterable_differs");t.IterableDiffers=P.IterableDiffers;var E=e("angular2/src/core/change_detection/differs/keyvalue_differs");t.KeyValueDiffers=E.KeyValueDiffers;var S=e("angular2/src/core/change_detection/change_detection_util");return t.WrappedValue=S.WrappedValue,t.SimpleChange=S.SimpleChange,t.keyValDiff=l.CONST_EXPR([l.CONST_EXPR(new c.DefaultKeyValueDifferFactory)]),t.iterableDiff=l.CONST_EXPR([l.CONST_EXPR(new a.DefaultIterableDifferFactory)]),t.defaultIterableDiffers=l.CONST_EXPR(new o.IterableDiffers(t.iterableDiff)),t.defaultKeyValueDiffers=l.CONST_EXPR(new 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this.distanceToParentElementBinder=m.isPresent(e)?e.distanceToParent:this.distanceToParentElementBinder-1,this.distanceToParentProtoElementInjector=m.isPresent(t)?t.distanceToParent:this.distanceToParentProtoElementInjector-1,null},e}();return t.createDirectiveVariableBindings=s,p.define=d,r.exports}),System.register("angular2/src/core/change_detection",["angular2/src/core/change_detection/change_detection"],!0,function(e,t,r){var n=System.global,i=n.define;n.define=void 0;var o=e("angular2/src/core/change_detection/change_detection");return 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t.COMPILER_PROVIDERS=f.CONST_EXPR([D.Lexer,D.Parser,m.HtmlParser,g.TemplateParser,v.TemplateNormalizer,y.RuntimeMetadataResolver,O.DEFAULT_PACKAGE_URL_PROVIDER,b.StyleCompiler,C.CommandCompiler,_.ChangeDetectionCompiler,new h.Provider(P.ChangeDetectorGenConfig,{useFactory:i,deps:[]}),w.TemplateCompiler,new h.Provider(S.RuntimeCompiler,{useClass:s.RuntimeCompiler_}),new h.Provider(E.Compiler,{useExisting:S.RuntimeCompiler}),x.DomElementSchemaRegistry,new h.Provider(R.ElementSchemaRegistry,{useExisting:x.DomElementSchemaRegistry}),O.UrlResolver]),o.define=a,r.exports}),System.register("angular2/compiler",["angular2/src/compiler/url_resolver","angular2/src/compiler/xhr","angular2/src/compiler/compiler"],!0,function(e,t,r){function n(e){for(var r in e)t.hasOwnProperty(r)||(t[r]=e[r])}var i=System.global,o=i.define;return i.define=void 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diff --git a/demo/js_dependencies/react.min.js b/demo/js_dependencies/react.min.js
new file mode 100644
index 0000000..e7b194a
--- /dev/null
+++ b/demo/js_dependencies/react.min.js
@@ -0,0 +1,15 @@
+/**
+ * React v0.13.0
+ *
+ * Copyright 2013-2015, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.React=e()}}(function(){return function e(t,n,r){function o(a,u){if(!n[a]){if(!t[a]){var s="function"==typeof require&&require;if(!u&&s)return s(a,!0);if(i)return i(a,!0);var l=new Error("Cannot find module '"+a+"'");throw l.code="MODULE_NOT_FOUND",l}var c=n[a]={exports:{}};t[a][0].call(c.exports,function(e){var n=t[a][1][e];return o(n?n:e)},c,c.exports,e,t,n,r)}return n[a].exports}for(var i="function"==typeof require&&require,a=0;a<r.length;a++)o(r[a]);return o}({1:[function(e,t){"use strict";var n=e(19),r=e(32),o=e(34),i=e(33),a=e(38),u=e(39),s=e(55),l=(e(56),e(40)),c=e(51),p=e(54),d=e(64),f=e(68),h=e(73),m=e(76),v=e(79),g=e(82),y=e(27),C=e(115),E=e(142);p.inject();var 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This will render a read-only field. If the field should be mutable use `defaultValue`. Otherwise, set either `onChange` or `readOnly`.")},checked:function(e,t){return!e[t]||e.onChange||e.readOnly||e.disabled?null:new Error("You provided a `checked` prop to a form field without an `onChange` handler. This will render a read-only field. If the field should be mutable use `defaultChecked`. 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m.ReactEventListener.trapBubbledEvent(e,t,n)},trapCapturedEvent:function(e,t,n){return m.ReactEventListener.trapCapturedEvent(e,t,n)},ensureScrollValueMonitoring:function(){if(!p){var e=u.refreshScrollValues;
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r=e[t];n.unmountComponent(r)}}};t.exports=a},{116:116,132:132,147:147,79:79}],32:[function(e,t){"use strict";function n(e,t){this.forEachFunction=e,this.forEachContext=t}function r(e,t,n,r){var o=e;o.forEachFunction.call(o.forEachContext,t,r)}function o(e,t,o){if(null==e)return e;var i=n.getPooled(t,o);d(e,r,i),n.release(i)}function i(e,t,n){this.mapResult=e,this.mapFunction=t,this.mapContext=n}function a(e,t,n,r){var o=e,i=o.mapResult,a=!i.hasOwnProperty(n);if(a){var u=o.mapFunction.call(o.mapContext,t,r);i[n]=u}}function u(e,t,n){if(null==e)return e;var r={},o=i.getPooled(r,t,n);return d(e,a,o),i.release(o),p.create(r)}function s(){return null}function l(e){return d(e,s,null)}var c=e(28),p=e(61),d=e(149),f=(e(150),c.twoArgumentPooler),h=c.threeArgumentPooler;c.addPoolingTo(n,f),c.addPoolingTo(i,h);var m={forEach:o,map:u,count:l};t.exports=m},{149:149,150:150,28:28,61:61}],33:[function(e,t){"use strict";function n(e,t){var 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c=e(34),p=(e(39),e(55)),d=e(58),f=e(65),h=e(66),m=(e(75),e(74),e(84)),v=e(27),g=e(133),y=e(138),C=e(139),E=(e(150),C({mixins:null})),b=y({DEFINE_ONCE:null,DEFINE_MANY:null,OVERRIDE_BASE:null,DEFINE_MANY_MERGED:null}),_=[],x={mixins:b.DEFINE_MANY,statics:b.DEFINE_MANY,propTypes:b.DEFINE_MANY,contextTypes:b.DEFINE_MANY,childContextTypes:b.DEFINE_MANY,getDefaultProps:b.DEFINE_MANY_MERGED,getInitialState:b.DEFINE_MANY_MERGED,getChildContext:b.DEFINE_MANY_MERGED,render:b.DEFINE_ONCE,componentWillMount:b.DEFINE_MANY,componentDidMount:b.DEFINE_MANY,componentWillReceiveProps:b.DEFINE_MANY,shouldComponentUpdate:b.DEFINE_ONCE,componentWillUpdate:b.DEFINE_MANY,componentDidUpdate:b.DEFINE_MANY,componentWillUnmount:b.DEFINE_MANY,updateComponent:b.OVERRIDE_BASE},D={displayName:function(e,t){e.displayName=t},mixins:function(e,t){if(t)for(var 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E={Mixin:C};t.exports=E},{113:113,133:133,147:147,150:150,27:27,36:36,38:38,39:39,55:55,56:56,65:65,66:66,71:71,73:73,74:74,75:75,79:79,85:85}],38:[function(e,t){"use strict";var n=e(27),r=e(113),o=(e(150),{current:r,withContext:function(e,t){var r,i=o.current;o.current=n({},i,e);try{r=t()}finally{o.current=i}return r}});t.exports=o},{113:113,150:150,27:27}],39:[function(e,t){"use strict";var n={current:null};t.exports=n},{}],40:[function(e,t){"use strict";function n(e){return r.createFactory(e)}var 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i=t[o];if(null!=i)if(E.hasOwnProperty(o))r(this._rootNodeID,o,i,e);else{o===_&&(i&&(i=this._previousStyleCopy=h({},t.style)),i=a.createMarkupForStyles(i));var u=s.createMarkupForProperty(o,i);u&&(n+=" "+u)}}if(e.renderToStaticMarkup)return n+">";var l=s.createMarkupForID(this._rootNodeID);return n+" "+l+">"},_createContentMarkup:function(e,t){var n="";("listing"===this._tag||"pre"===this._tag||"textarea"===this._tag)&&(n="\n");var r=this._currentElement.props,o=r.dangerouslySetInnerHTML;if(null!=o){if(null!=o.__html)return n+o.__html}else{var i=b[typeof r.children]?r.children:null,a=null!=i?null:r.children;if(null!=i)return n+m(i);if(null!=a){var u=this.mountChildren(a,e,t);return n+u.join("")}}return n},receiveComponent:function(e,t,n){var 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n=e(15),r=e(25),o=e(29),i=e(33),a=e(55),u=a.createFactory("form"),s=i.createClass({displayName:"ReactDOMForm",tagName:"FORM",mixins:[o,r],render:function(){return u(this.props)},componentDidMount:function(){this.trapBubbledEvent(n.topLevelTypes.topReset,"reset"),this.trapBubbledEvent(n.topLevelTypes.topSubmit,"submit")}});t.exports=s},{15:15,25:25,29:29,33:33,55:55}],44:[function(e,t){"use strict";var n=e(5),r=e(9),o=e(11),i=e(68),a=e(73),u=e(133),s=e(144),l={dangerouslySetInnerHTML:"`dangerouslySetInnerHTML` must be set using `updateInnerHTMLByID()`.",style:"`style` must be set using `updateStylesByID()`."},c={updatePropertyByID:function(e,t,n){var r=i.getNode(e);u(!l.hasOwnProperty(t)),null!=n?o.setValueForProperty(r,t,n):o.deleteValueForProperty(r,t)},deletePropertyByID:function(e,t,n){var r=i.getNode(e);u(!l.hasOwnProperty(t)),o.deleteValueForProperty(r,t,n)},updateStylesByID:function(e,t){var r=i.getNode(e);n.setValueForStyles(r,t)},updateInnerHTMLByID:function(e,t){var n=i.getNode(e);s(n,t)},updateTextContentByID:function(e,t){var n=i.getNode(e);r.updateTextContent(n,t)},dangerouslyReplaceNodeWithMarkupByID:function(e,t){var n=i.getNode(e);r.dangerouslyReplaceNodeWithMarkup(n,t)},dangerouslyProcessChildrenUpdates:function(e,t){for(var n=0;n<e.length;n++)e[n].parentNode=i.getNode(e[n].parentID);r.processUpdates(e,t)}};a.measureMethods(c,"ReactDOMIDOperations",{updatePropertyByID:"updatePropertyByID",deletePropertyByID:"deletePropertyByID",updateStylesByID:"updateStylesByID",updateInnerHTMLByID:"updateInnerHTMLByID",updateTextContentByID:"updateTextContentByID",dangerouslyReplaceNodeWithMarkupByID:"dangerouslyReplaceNodeWithMarkupByID",dangerouslyProcessChildrenUpdates:"dangerouslyProcessChildrenUpdates"}),t.exports=c},{11:11,133:133,144:144,5:5,68:68,73:73,9:9}],45:[function(e,t){"use strict";var n=e(15),r=e(25),o=e(29),i=e(33),a=e(55),u=a.createFactory("iframe"),s=i.createClass({displayName:"ReactDOMIframe",tagName:"IFRAME",mixins:[o,r],render:function(){return u(this.props)},componentDidMount:function(){this.trapBubbledEvent(n.topLevelTypes.topLoad,"load")}});t.exports=s},{15:15,25:25,29:29,33:33,55:55}],46:[function(e,t){"use strict";var n=e(15),r=e(25),o=e(29),i=e(33),a=e(55),u=a.createFactory("img"),s=i.createClass({displayName:"ReactDOMImg",tagName:"IMG",mixins:[o,r],render:function(){return u(this.props)},componentDidMount:function(){this.trapBubbledEvent(n.topLevelTypes.topLoad,"load"),this.trapBubbledEvent(n.topLevelTypes.topError,"error")}});t.exports=s},{15:15,25:25,29:29,33:33,55:55}],47:[function(e,t){"use strict";function n(){this.isMounted()&&this.forceUpdate()}var 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t=i.getValue(this);null!=t&&o.setValueForProperty(e,"value",""+t)},_handleChange:function(e){var t,r=i.getOnChange(this);r&&(t=r.call(this,e)),c.asap(n,this);var o=this.props.name;if("radio"===this.props.type&&null!=o){for(var a=this.getDOMNode(),u=a;u.parentNode;)u=u.parentNode;for(var s=u.querySelectorAll("input[name="+JSON.stringify(""+o)+'][type="radio"]'),p=0,f=s.length;f>p;p++){var m=s[p];if(m!==a&&m.form===a.form){var v=l.getID(m);d(v);var g=h[v];d(g),c.asap(n,g)}}}return t}});t.exports=m},{11:11,133:133,2:2,24:24,27:27,29:29,33:33,55:55,68:68,85:85}],48:[function(e,t){"use strict";var n=e(29),r=e(33),o=e(55),i=(e(150),o.createFactory("option")),a=r.createClass({displayName:"ReactDOMOption",tagName:"OPTION",mixins:[n],componentWillMount:function(){},render:function(){return i(this.props,this.props.children)}});t.exports=a},{150:150,29:29,33:33,55:55}],49:[function(e,t){"use strict";function n(){if(this._pendingUpdate){this._pendingUpdate=!1;var e=a.getValue(this);null!=e&&this.isMounted()&&o(this,e)}}function r(e,t){if(null==e[t])return null;if(e.multiple){if(!Array.isArray(e[t]))return new Error("The `"+t+"` prop supplied to <select> must be an array if `multiple` is true.")}else if(Array.isArray(e[t]))return new Error("The `"+t+"` prop supplied to <select> must be a scalar value if `multiple` is false.")}function o(e,t){var n,r,o,i=e.getDOMNode().options;if(e.props.multiple){for(n={},r=0,o=t.length;o>r;r++)n[""+t[r]]=!0;for(r=0,o=i.length;o>r;r++){var a=n.hasOwnProperty(i[r].value);i[r].selected!==a&&(i[r].selected=a)}}else{for(n=""+t,r=0,o=i.length;o>r;r++)if(i[r].value===n)return void(i[r].selected=!0);i[0].selected=!0}}var i=e(2),a=e(24),u=e(29),s=e(33),l=e(55),c=e(85),p=e(27),d=l.createFactory("select"),f=s.createClass({displayName:"ReactDOMSelect",tagName:"SELECT",mixins:[i,a.Mixin,u],propTypes:{defaultValue:r,value:r},render:function(){var e=p({},this.props);return e.onChange=this._handleChange,e.value=null,d(e,this.props.children)},componentWillMount:function(){this._pendingUpdate=!1},componentDidMount:function(){var e=a.getValue(this);null!=e?o(this,e):null!=this.props.defaultValue&&o(this,this.props.defaultValue)},componentDidUpdate:function(e){var t=a.getValue(this);null!=t?(this._pendingUpdate=!1,o(this,t)):!e.multiple!=!this.props.multiple&&(null!=this.props.defaultValue?o(this,this.props.defaultValue):o(this,this.props.multiple?[]:""))},_handleChange:function(e){var t,r=a.getOnChange(this);return r&&(t=r.call(this,e)),this._pendingUpdate=!0,c.asap(n,this),t}});t.exports=f},{2:2,24:24,27:27,29:29,33:33,55:55,85:85}],50:[function(e,t){"use strict";function n(e,t,n,r){return e===n&&t===r}function r(e){var t=document.selection,n=t.createRange(),r=n.text.length,o=n.duplicate();o.moveToElementText(e),o.setEndPoint("EndToStart",n);var i=o.text.length,a=i+r;return{start:i,end:a}}function o(e){var t=window.getSelection&&window.getSelection();if(!t||0===t.rangeCount)return null;var r=t.anchorNode,o=t.anchorOffset,i=t.focusNode,a=t.focusOffset,u=t.getRangeAt(0),s=n(t.anchorNode,t.anchorOffset,t.focusNode,t.focusOffset),l=s?0:u.toString().length,c=u.cloneRange();c.selectNodeContents(e),c.setEnd(u.startContainer,u.startOffset);var p=n(c.startContainer,c.startOffset,c.endContainer,c.endOffset),d=p?0:c.toString().length,f=d+l,h=document.createRange();h.setStart(r,o),h.setEnd(i,a);var m=h.collapsed;return{start:m?f:d,end:m?d:f}}function i(e,t){var n,r,o=document.selection.createRange().duplicate();"undefined"==typeof t.end?(n=t.start,r=n):t.start>t.end?(n=t.end,r=t.start):(n=t.start,r=t.end),o.moveToElementText(e),o.moveStart("character",n),o.setEndPoint("EndToStart",o),o.moveEnd("character",r-n),o.select()}function a(e,t){if(window.getSelection){var n=window.getSelection(),r=e[l()].length,o=Math.min(t.start,r),i="undefined"==typeof t.end?o:Math.min(t.end,r);if(!n.extend&&o>i){var 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+//# sourceMappingURL=system.js.map
diff --git a/demo/js_dependencies/typescript.js b/demo/js_dependencies/typescript.js
new file mode 100644
index 0000000..1b65cf9
--- /dev/null
+++ b/demo/js_dependencies/typescript.js
@@ -0,0 +1,50339 @@
+//typescript 1.7.3
+
+/*! *****************************************************************************
+Copyright (c) Microsoft Corporation. All rights reserved.
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use
+this file except in compliance with the License. You may obtain a copy of the
+License at http://www.apache.org/licenses/LICENSE-2.0
+
+THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
+WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
+MERCHANTABLITY OR NON-INFRINGEMENT.
+
+See the Apache Version 2.0 License for specific language governing permissions
+and limitations under the License.
+***************************************************************************** */
+
+var ts;
+(function (ts) {
+ // token > SyntaxKind.Identifer => token is a keyword
+ // Also, If you add a new SyntaxKind be sure to keep the `Markers` section at the bottom in sync
+ (function (SyntaxKind) {
+ SyntaxKind[SyntaxKind["Unknown"] = 0] = "Unknown";
+ SyntaxKind[SyntaxKind["EndOfFileToken"] = 1] = "EndOfFileToken";
+ SyntaxKind[SyntaxKind["SingleLineCommentTrivia"] = 2] = "SingleLineCommentTrivia";
+ SyntaxKind[SyntaxKind["MultiLineCommentTrivia"] = 3] = "MultiLineCommentTrivia";
+ SyntaxKind[SyntaxKind["NewLineTrivia"] = 4] = "NewLineTrivia";
+ SyntaxKind[SyntaxKind["WhitespaceTrivia"] = 5] = "WhitespaceTrivia";
+ // We detect and preserve #! on the first line
+ SyntaxKind[SyntaxKind["ShebangTrivia"] = 6] = "ShebangTrivia";
+ // We detect and provide better error recovery when we encounter a git merge marker. This
+ // allows us to edit files with git-conflict markers in them in a much more pleasant manner.
+ SyntaxKind[SyntaxKind["ConflictMarkerTrivia"] = 7] = "ConflictMarkerTrivia";
+ // Literals
+ SyntaxKind[SyntaxKind["NumericLiteral"] = 8] = "NumericLiteral";
+ SyntaxKind[SyntaxKind["StringLiteral"] = 9] = "StringLiteral";
+ SyntaxKind[SyntaxKind["RegularExpressionLiteral"] = 10] = "RegularExpressionLiteral";
+ SyntaxKind[SyntaxKind["NoSubstitutionTemplateLiteral"] = 11] = "NoSubstitutionTemplateLiteral";
+ // Pseudo-literals
+ SyntaxKind[SyntaxKind["TemplateHead"] = 12] = "TemplateHead";
+ SyntaxKind[SyntaxKind["TemplateMiddle"] = 13] = "TemplateMiddle";
+ SyntaxKind[SyntaxKind["TemplateTail"] = 14] = "TemplateTail";
+ // Punctuation
+ SyntaxKind[SyntaxKind["OpenBraceToken"] = 15] = "OpenBraceToken";
+ SyntaxKind[SyntaxKind["CloseBraceToken"] = 16] = "CloseBraceToken";
+ SyntaxKind[SyntaxKind["OpenParenToken"] = 17] = "OpenParenToken";
+ SyntaxKind[SyntaxKind["CloseParenToken"] = 18] = "CloseParenToken";
+ SyntaxKind[SyntaxKind["OpenBracketToken"] = 19] = "OpenBracketToken";
+ SyntaxKind[SyntaxKind["CloseBracketToken"] = 20] = "CloseBracketToken";
+ SyntaxKind[SyntaxKind["DotToken"] = 21] = "DotToken";
+ SyntaxKind[SyntaxKind["DotDotDotToken"] = 22] = "DotDotDotToken";
+ SyntaxKind[SyntaxKind["SemicolonToken"] = 23] = "SemicolonToken";
+ SyntaxKind[SyntaxKind["CommaToken"] = 24] = "CommaToken";
+ SyntaxKind[SyntaxKind["LessThanToken"] = 25] = "LessThanToken";
+ SyntaxKind[SyntaxKind["LessThanSlashToken"] = 26] = "LessThanSlashToken";
+ SyntaxKind[SyntaxKind["GreaterThanToken"] = 27] = "GreaterThanToken";
+ SyntaxKind[SyntaxKind["LessThanEqualsToken"] = 28] = "LessThanEqualsToken";
+ SyntaxKind[SyntaxKind["GreaterThanEqualsToken"] = 29] = "GreaterThanEqualsToken";
+ SyntaxKind[SyntaxKind["EqualsEqualsToken"] = 30] = "EqualsEqualsToken";
+ SyntaxKind[SyntaxKind["ExclamationEqualsToken"] = 31] = "ExclamationEqualsToken";
+ SyntaxKind[SyntaxKind["EqualsEqualsEqualsToken"] = 32] = "EqualsEqualsEqualsToken";
+ SyntaxKind[SyntaxKind["ExclamationEqualsEqualsToken"] = 33] = "ExclamationEqualsEqualsToken";
+ SyntaxKind[SyntaxKind["EqualsGreaterThanToken"] = 34] = "EqualsGreaterThanToken";
+ SyntaxKind[SyntaxKind["PlusToken"] = 35] = "PlusToken";
+ SyntaxKind[SyntaxKind["MinusToken"] = 36] = "MinusToken";
+ SyntaxKind[SyntaxKind["AsteriskToken"] = 37] = "AsteriskToken";
+ SyntaxKind[SyntaxKind["AsteriskAsteriskToken"] = 38] = "AsteriskAsteriskToken";
+ SyntaxKind[SyntaxKind["SlashToken"] = 39] = "SlashToken";
+ SyntaxKind[SyntaxKind["PercentToken"] = 40] = "PercentToken";
+ SyntaxKind[SyntaxKind["PlusPlusToken"] = 41] = "PlusPlusToken";
+ SyntaxKind[SyntaxKind["MinusMinusToken"] = 42] = "MinusMinusToken";
+ SyntaxKind[SyntaxKind["LessThanLessThanToken"] = 43] = "LessThanLessThanToken";
+ SyntaxKind[SyntaxKind["GreaterThanGreaterThanToken"] = 44] = "GreaterThanGreaterThanToken";
+ SyntaxKind[SyntaxKind["GreaterThanGreaterThanGreaterThanToken"] = 45] = "GreaterThanGreaterThanGreaterThanToken";
+ SyntaxKind[SyntaxKind["AmpersandToken"] = 46] = "AmpersandToken";
+ SyntaxKind[SyntaxKind["BarToken"] = 47] = "BarToken";
+ SyntaxKind[SyntaxKind["CaretToken"] = 48] = "CaretToken";
+ SyntaxKind[SyntaxKind["ExclamationToken"] = 49] = "ExclamationToken";
+ SyntaxKind[SyntaxKind["TildeToken"] = 50] = "TildeToken";
+ SyntaxKind[SyntaxKind["AmpersandAmpersandToken"] = 51] = "AmpersandAmpersandToken";
+ SyntaxKind[SyntaxKind["BarBarToken"] = 52] = "BarBarToken";
+ SyntaxKind[SyntaxKind["QuestionToken"] = 53] = "QuestionToken";
+ SyntaxKind[SyntaxKind["ColonToken"] = 54] = "ColonToken";
+ SyntaxKind[SyntaxKind["AtToken"] = 55] = "AtToken";
+ // Assignments
+ SyntaxKind[SyntaxKind["EqualsToken"] = 56] = "EqualsToken";
+ SyntaxKind[SyntaxKind["PlusEqualsToken"] = 57] = "PlusEqualsToken";
+ SyntaxKind[SyntaxKind["MinusEqualsToken"] = 58] = "MinusEqualsToken";
+ SyntaxKind[SyntaxKind["AsteriskEqualsToken"] = 59] = "AsteriskEqualsToken";
+ SyntaxKind[SyntaxKind["AsteriskAsteriskEqualsToken"] = 60] = "AsteriskAsteriskEqualsToken";
+ SyntaxKind[SyntaxKind["SlashEqualsToken"] = 61] = "SlashEqualsToken";
+ SyntaxKind[SyntaxKind["PercentEqualsToken"] = 62] = "PercentEqualsToken";
+ SyntaxKind[SyntaxKind["LessThanLessThanEqualsToken"] = 63] = "LessThanLessThanEqualsToken";
+ SyntaxKind[SyntaxKind["GreaterThanGreaterThanEqualsToken"] = 64] = "GreaterThanGreaterThanEqualsToken";
+ SyntaxKind[SyntaxKind["GreaterThanGreaterThanGreaterThanEqualsToken"] = 65] = "GreaterThanGreaterThanGreaterThanEqualsToken";
+ SyntaxKind[SyntaxKind["AmpersandEqualsToken"] = 66] = "AmpersandEqualsToken";
+ SyntaxKind[SyntaxKind["BarEqualsToken"] = 67] = "BarEqualsToken";
+ SyntaxKind[SyntaxKind["CaretEqualsToken"] = 68] = "CaretEqualsToken";
+ // Identifiers
+ SyntaxKind[SyntaxKind["Identifier"] = 69] = "Identifier";
+ // Reserved words
+ SyntaxKind[SyntaxKind["BreakKeyword"] = 70] = "BreakKeyword";
+ SyntaxKind[SyntaxKind["CaseKeyword"] = 71] = "CaseKeyword";
+ SyntaxKind[SyntaxKind["CatchKeyword"] = 72] = "CatchKeyword";
+ SyntaxKind[SyntaxKind["ClassKeyword"] = 73] = "ClassKeyword";
+ SyntaxKind[SyntaxKind["ConstKeyword"] = 74] = "ConstKeyword";
+ SyntaxKind[SyntaxKind["ContinueKeyword"] = 75] = "ContinueKeyword";
+ SyntaxKind[SyntaxKind["DebuggerKeyword"] = 76] = "DebuggerKeyword";
+ SyntaxKind[SyntaxKind["DefaultKeyword"] = 77] = "DefaultKeyword";
+ SyntaxKind[SyntaxKind["DeleteKeyword"] = 78] = "DeleteKeyword";
+ SyntaxKind[SyntaxKind["DoKeyword"] = 79] = "DoKeyword";
+ SyntaxKind[SyntaxKind["ElseKeyword"] = 80] = "ElseKeyword";
+ SyntaxKind[SyntaxKind["EnumKeyword"] = 81] = "EnumKeyword";
+ SyntaxKind[SyntaxKind["ExportKeyword"] = 82] = "ExportKeyword";
+ SyntaxKind[SyntaxKind["ExtendsKeyword"] = 83] = "ExtendsKeyword";
+ SyntaxKind[SyntaxKind["FalseKeyword"] = 84] = "FalseKeyword";
+ SyntaxKind[SyntaxKind["FinallyKeyword"] = 85] = "FinallyKeyword";
+ SyntaxKind[SyntaxKind["ForKeyword"] = 86] = "ForKeyword";
+ SyntaxKind[SyntaxKind["FunctionKeyword"] = 87] = "FunctionKeyword";
+ SyntaxKind[SyntaxKind["IfKeyword"] = 88] = "IfKeyword";
+ SyntaxKind[SyntaxKind["ImportKeyword"] = 89] = "ImportKeyword";
+ SyntaxKind[SyntaxKind["InKeyword"] = 90] = "InKeyword";
+ SyntaxKind[SyntaxKind["InstanceOfKeyword"] = 91] = "InstanceOfKeyword";
+ SyntaxKind[SyntaxKind["NewKeyword"] = 92] = "NewKeyword";
+ SyntaxKind[SyntaxKind["NullKeyword"] = 93] = "NullKeyword";
+ SyntaxKind[SyntaxKind["ReturnKeyword"] = 94] = "ReturnKeyword";
+ SyntaxKind[SyntaxKind["SuperKeyword"] = 95] = "SuperKeyword";
+ SyntaxKind[SyntaxKind["SwitchKeyword"] = 96] = "SwitchKeyword";
+ SyntaxKind[SyntaxKind["ThisKeyword"] = 97] = "ThisKeyword";
+ SyntaxKind[SyntaxKind["ThrowKeyword"] = 98] = "ThrowKeyword";
+ SyntaxKind[SyntaxKind["TrueKeyword"] = 99] = "TrueKeyword";
+ SyntaxKind[SyntaxKind["TryKeyword"] = 100] = "TryKeyword";
+ SyntaxKind[SyntaxKind["TypeOfKeyword"] = 101] = "TypeOfKeyword";
+ SyntaxKind[SyntaxKind["VarKeyword"] = 102] = "VarKeyword";
+ SyntaxKind[SyntaxKind["VoidKeyword"] = 103] = "VoidKeyword";
+ SyntaxKind[SyntaxKind["WhileKeyword"] = 104] = "WhileKeyword";
+ SyntaxKind[SyntaxKind["WithKeyword"] = 105] = "WithKeyword";
+ // Strict mode reserved words
+ SyntaxKind[SyntaxKind["ImplementsKeyword"] = 106] = "ImplementsKeyword";
+ SyntaxKind[SyntaxKind["InterfaceKeyword"] = 107] = "InterfaceKeyword";
+ SyntaxKind[SyntaxKind["LetKeyword"] = 108] = "LetKeyword";
+ SyntaxKind[SyntaxKind["PackageKeyword"] = 109] = "PackageKeyword";
+ SyntaxKind[SyntaxKind["PrivateKeyword"] = 110] = "PrivateKeyword";
+ SyntaxKind[SyntaxKind["ProtectedKeyword"] = 111] = "ProtectedKeyword";
+ SyntaxKind[SyntaxKind["PublicKeyword"] = 112] = "PublicKeyword";
+ SyntaxKind[SyntaxKind["StaticKeyword"] = 113] = "StaticKeyword";
+ SyntaxKind[SyntaxKind["YieldKeyword"] = 114] = "YieldKeyword";
+ // Contextual keywords
+ SyntaxKind[SyntaxKind["AbstractKeyword"] = 115] = "AbstractKeyword";
+ SyntaxKind[SyntaxKind["AsKeyword"] = 116] = "AsKeyword";
+ SyntaxKind[SyntaxKind["AnyKeyword"] = 117] = "AnyKeyword";
+ SyntaxKind[SyntaxKind["AsyncKeyword"] = 118] = "AsyncKeyword";
+ SyntaxKind[SyntaxKind["AwaitKeyword"] = 119] = "AwaitKeyword";
+ SyntaxKind[SyntaxKind["BooleanKeyword"] = 120] = "BooleanKeyword";
+ SyntaxKind[SyntaxKind["ConstructorKeyword"] = 121] = "ConstructorKeyword";
+ SyntaxKind[SyntaxKind["DeclareKeyword"] = 122] = "DeclareKeyword";
+ SyntaxKind[SyntaxKind["GetKeyword"] = 123] = "GetKeyword";
+ SyntaxKind[SyntaxKind["IsKeyword"] = 124] = "IsKeyword";
+ SyntaxKind[SyntaxKind["ModuleKeyword"] = 125] = "ModuleKeyword";
+ SyntaxKind[SyntaxKind["NamespaceKeyword"] = 126] = "NamespaceKeyword";
+ SyntaxKind[SyntaxKind["RequireKeyword"] = 127] = "RequireKeyword";
+ SyntaxKind[SyntaxKind["NumberKeyword"] = 128] = "NumberKeyword";
+ SyntaxKind[SyntaxKind["SetKeyword"] = 129] = "SetKeyword";
+ SyntaxKind[SyntaxKind["StringKeyword"] = 130] = "StringKeyword";
+ SyntaxKind[SyntaxKind["SymbolKeyword"] = 131] = "SymbolKeyword";
+ SyntaxKind[SyntaxKind["TypeKeyword"] = 132] = "TypeKeyword";
+ SyntaxKind[SyntaxKind["FromKeyword"] = 133] = "FromKeyword";
+ SyntaxKind[SyntaxKind["OfKeyword"] = 134] = "OfKeyword";
+ // Parse tree nodes
+ // Names
+ SyntaxKind[SyntaxKind["QualifiedName"] = 135] = "QualifiedName";
+ SyntaxKind[SyntaxKind["ComputedPropertyName"] = 136] = "ComputedPropertyName";
+ // Signature elements
+ SyntaxKind[SyntaxKind["TypeParameter"] = 137] = "TypeParameter";
+ SyntaxKind[SyntaxKind["Parameter"] = 138] = "Parameter";
+ SyntaxKind[SyntaxKind["Decorator"] = 139] = "Decorator";
+ // TypeMember
+ SyntaxKind[SyntaxKind["PropertySignature"] = 140] = "PropertySignature";
+ SyntaxKind[SyntaxKind["PropertyDeclaration"] = 141] = "PropertyDeclaration";
+ SyntaxKind[SyntaxKind["MethodSignature"] = 142] = "MethodSignature";
+ SyntaxKind[SyntaxKind["MethodDeclaration"] = 143] = "MethodDeclaration";
+ SyntaxKind[SyntaxKind["Constructor"] = 144] = "Constructor";
+ SyntaxKind[SyntaxKind["GetAccessor"] = 145] = "GetAccessor";
+ SyntaxKind[SyntaxKind["SetAccessor"] = 146] = "SetAccessor";
+ SyntaxKind[SyntaxKind["CallSignature"] = 147] = "CallSignature";
+ SyntaxKind[SyntaxKind["ConstructSignature"] = 148] = "ConstructSignature";
+ SyntaxKind[SyntaxKind["IndexSignature"] = 149] = "IndexSignature";
+ // Type
+ SyntaxKind[SyntaxKind["TypePredicate"] = 150] = "TypePredicate";
+ SyntaxKind[SyntaxKind["TypeReference"] = 151] = "TypeReference";
+ SyntaxKind[SyntaxKind["FunctionType"] = 152] = "FunctionType";
+ SyntaxKind[SyntaxKind["ConstructorType"] = 153] = "ConstructorType";
+ SyntaxKind[SyntaxKind["TypeQuery"] = 154] = "TypeQuery";
+ SyntaxKind[SyntaxKind["TypeLiteral"] = 155] = "TypeLiteral";
+ SyntaxKind[SyntaxKind["ArrayType"] = 156] = "ArrayType";
+ SyntaxKind[SyntaxKind["TupleType"] = 157] = "TupleType";
+ SyntaxKind[SyntaxKind["UnionType"] = 158] = "UnionType";
+ SyntaxKind[SyntaxKind["IntersectionType"] = 159] = "IntersectionType";
+ SyntaxKind[SyntaxKind["ParenthesizedType"] = 160] = "ParenthesizedType";
+ // Binding patterns
+ SyntaxKind[SyntaxKind["ObjectBindingPattern"] = 161] = "ObjectBindingPattern";
+ SyntaxKind[SyntaxKind["ArrayBindingPattern"] = 162] = "ArrayBindingPattern";
+ SyntaxKind[SyntaxKind["BindingElement"] = 163] = "BindingElement";
+ // Expression
+ SyntaxKind[SyntaxKind["ArrayLiteralExpression"] = 164] = "ArrayLiteralExpression";
+ SyntaxKind[SyntaxKind["ObjectLiteralExpression"] = 165] = "ObjectLiteralExpression";
+ SyntaxKind[SyntaxKind["PropertyAccessExpression"] = 166] = "PropertyAccessExpression";
+ SyntaxKind[SyntaxKind["ElementAccessExpression"] = 167] = "ElementAccessExpression";
+ SyntaxKind[SyntaxKind["CallExpression"] = 168] = "CallExpression";
+ SyntaxKind[SyntaxKind["NewExpression"] = 169] = "NewExpression";
+ SyntaxKind[SyntaxKind["TaggedTemplateExpression"] = 170] = "TaggedTemplateExpression";
+ SyntaxKind[SyntaxKind["TypeAssertionExpression"] = 171] = "TypeAssertionExpression";
+ SyntaxKind[SyntaxKind["ParenthesizedExpression"] = 172] = "ParenthesizedExpression";
+ SyntaxKind[SyntaxKind["FunctionExpression"] = 173] = "FunctionExpression";
+ SyntaxKind[SyntaxKind["ArrowFunction"] = 174] = "ArrowFunction";
+ SyntaxKind[SyntaxKind["DeleteExpression"] = 175] = "DeleteExpression";
+ SyntaxKind[SyntaxKind["TypeOfExpression"] = 176] = "TypeOfExpression";
+ SyntaxKind[SyntaxKind["VoidExpression"] = 177] = "VoidExpression";
+ SyntaxKind[SyntaxKind["AwaitExpression"] = 178] = "AwaitExpression";
+ SyntaxKind[SyntaxKind["PrefixUnaryExpression"] = 179] = "PrefixUnaryExpression";
+ SyntaxKind[SyntaxKind["PostfixUnaryExpression"] = 180] = "PostfixUnaryExpression";
+ SyntaxKind[SyntaxKind["BinaryExpression"] = 181] = "BinaryExpression";
+ SyntaxKind[SyntaxKind["ConditionalExpression"] = 182] = "ConditionalExpression";
+ SyntaxKind[SyntaxKind["TemplateExpression"] = 183] = "TemplateExpression";
+ SyntaxKind[SyntaxKind["YieldExpression"] = 184] = "YieldExpression";
+ SyntaxKind[SyntaxKind["SpreadElementExpression"] = 185] = "SpreadElementExpression";
+ SyntaxKind[SyntaxKind["ClassExpression"] = 186] = "ClassExpression";
+ SyntaxKind[SyntaxKind["OmittedExpression"] = 187] = "OmittedExpression";
+ SyntaxKind[SyntaxKind["ExpressionWithTypeArguments"] = 188] = "ExpressionWithTypeArguments";
+ SyntaxKind[SyntaxKind["AsExpression"] = 189] = "AsExpression";
+ // Misc
+ SyntaxKind[SyntaxKind["TemplateSpan"] = 190] = "TemplateSpan";
+ SyntaxKind[SyntaxKind["SemicolonClassElement"] = 191] = "SemicolonClassElement";
+ // Element
+ SyntaxKind[SyntaxKind["Block"] = 192] = "Block";
+ SyntaxKind[SyntaxKind["VariableStatement"] = 193] = "VariableStatement";
+ SyntaxKind[SyntaxKind["EmptyStatement"] = 194] = "EmptyStatement";
+ SyntaxKind[SyntaxKind["ExpressionStatement"] = 195] = "ExpressionStatement";
+ SyntaxKind[SyntaxKind["IfStatement"] = 196] = "IfStatement";
+ SyntaxKind[SyntaxKind["DoStatement"] = 197] = "DoStatement";
+ SyntaxKind[SyntaxKind["WhileStatement"] = 198] = "WhileStatement";
+ SyntaxKind[SyntaxKind["ForStatement"] = 199] = "ForStatement";
+ SyntaxKind[SyntaxKind["ForInStatement"] = 200] = "ForInStatement";
+ SyntaxKind[SyntaxKind["ForOfStatement"] = 201] = "ForOfStatement";
+ SyntaxKind[SyntaxKind["ContinueStatement"] = 202] = "ContinueStatement";
+ SyntaxKind[SyntaxKind["BreakStatement"] = 203] = "BreakStatement";
+ SyntaxKind[SyntaxKind["ReturnStatement"] = 204] = "ReturnStatement";
+ SyntaxKind[SyntaxKind["WithStatement"] = 205] = "WithStatement";
+ SyntaxKind[SyntaxKind["SwitchStatement"] = 206] = "SwitchStatement";
+ SyntaxKind[SyntaxKind["LabeledStatement"] = 207] = "LabeledStatement";
+ SyntaxKind[SyntaxKind["ThrowStatement"] = 208] = "ThrowStatement";
+ SyntaxKind[SyntaxKind["TryStatement"] = 209] = "TryStatement";
+ SyntaxKind[SyntaxKind["DebuggerStatement"] = 210] = "DebuggerStatement";
+ SyntaxKind[SyntaxKind["VariableDeclaration"] = 211] = "VariableDeclaration";
+ SyntaxKind[SyntaxKind["VariableDeclarationList"] = 212] = "VariableDeclarationList";
+ SyntaxKind[SyntaxKind["FunctionDeclaration"] = 213] = "FunctionDeclaration";
+ SyntaxKind[SyntaxKind["ClassDeclaration"] = 214] = "ClassDeclaration";
+ SyntaxKind[SyntaxKind["InterfaceDeclaration"] = 215] = "InterfaceDeclaration";
+ SyntaxKind[SyntaxKind["TypeAliasDeclaration"] = 216] = "TypeAliasDeclaration";
+ SyntaxKind[SyntaxKind["EnumDeclaration"] = 217] = "EnumDeclaration";
+ SyntaxKind[SyntaxKind["ModuleDeclaration"] = 218] = "ModuleDeclaration";
+ SyntaxKind[SyntaxKind["ModuleBlock"] = 219] = "ModuleBlock";
+ SyntaxKind[SyntaxKind["CaseBlock"] = 220] = "CaseBlock";
+ SyntaxKind[SyntaxKind["ImportEqualsDeclaration"] = 221] = "ImportEqualsDeclaration";
+ SyntaxKind[SyntaxKind["ImportDeclaration"] = 222] = "ImportDeclaration";
+ SyntaxKind[SyntaxKind["ImportClause"] = 223] = "ImportClause";
+ SyntaxKind[SyntaxKind["NamespaceImport"] = 224] = "NamespaceImport";
+ SyntaxKind[SyntaxKind["NamedImports"] = 225] = "NamedImports";
+ SyntaxKind[SyntaxKind["ImportSpecifier"] = 226] = "ImportSpecifier";
+ SyntaxKind[SyntaxKind["ExportAssignment"] = 227] = "ExportAssignment";
+ SyntaxKind[SyntaxKind["ExportDeclaration"] = 228] = "ExportDeclaration";
+ SyntaxKind[SyntaxKind["NamedExports"] = 229] = "NamedExports";
+ SyntaxKind[SyntaxKind["ExportSpecifier"] = 230] = "ExportSpecifier";
+ SyntaxKind[SyntaxKind["MissingDeclaration"] = 231] = "MissingDeclaration";
+ // Module references
+ SyntaxKind[SyntaxKind["ExternalModuleReference"] = 232] = "ExternalModuleReference";
+ // JSX
+ SyntaxKind[SyntaxKind["JsxElement"] = 233] = "JsxElement";
+ SyntaxKind[SyntaxKind["JsxSelfClosingElement"] = 234] = "JsxSelfClosingElement";
+ SyntaxKind[SyntaxKind["JsxOpeningElement"] = 235] = "JsxOpeningElement";
+ SyntaxKind[SyntaxKind["JsxText"] = 236] = "JsxText";
+ SyntaxKind[SyntaxKind["JsxClosingElement"] = 237] = "JsxClosingElement";
+ SyntaxKind[SyntaxKind["JsxAttribute"] = 238] = "JsxAttribute";
+ SyntaxKind[SyntaxKind["JsxSpreadAttribute"] = 239] = "JsxSpreadAttribute";
+ SyntaxKind[SyntaxKind["JsxExpression"] = 240] = "JsxExpression";
+ // Clauses
+ SyntaxKind[SyntaxKind["CaseClause"] = 241] = "CaseClause";
+ SyntaxKind[SyntaxKind["DefaultClause"] = 242] = "DefaultClause";
+ SyntaxKind[SyntaxKind["HeritageClause"] = 243] = "HeritageClause";
+ SyntaxKind[SyntaxKind["CatchClause"] = 244] = "CatchClause";
+ // Property assignments
+ SyntaxKind[SyntaxKind["PropertyAssignment"] = 245] = "PropertyAssignment";
+ SyntaxKind[SyntaxKind["ShorthandPropertyAssignment"] = 246] = "ShorthandPropertyAssignment";
+ // Enum
+ SyntaxKind[SyntaxKind["EnumMember"] = 247] = "EnumMember";
+ // Top-level nodes
+ SyntaxKind[SyntaxKind["SourceFile"] = 248] = "SourceFile";
+ // JSDoc nodes.
+ SyntaxKind[SyntaxKind["JSDocTypeExpression"] = 249] = "JSDocTypeExpression";
+ // The * type.
+ SyntaxKind[SyntaxKind["JSDocAllType"] = 250] = "JSDocAllType";
+ // The ? type.
+ SyntaxKind[SyntaxKind["JSDocUnknownType"] = 251] = "JSDocUnknownType";
+ SyntaxKind[SyntaxKind["JSDocArrayType"] = 252] = "JSDocArrayType";
+ SyntaxKind[SyntaxKind["JSDocUnionType"] = 253] = "JSDocUnionType";
+ SyntaxKind[SyntaxKind["JSDocTupleType"] = 254] = "JSDocTupleType";
+ SyntaxKind[SyntaxKind["JSDocNullableType"] = 255] = "JSDocNullableType";
+ SyntaxKind[SyntaxKind["JSDocNonNullableType"] = 256] = "JSDocNonNullableType";
+ SyntaxKind[SyntaxKind["JSDocRecordType"] = 257] = "JSDocRecordType";
+ SyntaxKind[SyntaxKind["JSDocRecordMember"] = 258] = "JSDocRecordMember";
+ SyntaxKind[SyntaxKind["JSDocTypeReference"] = 259] = "JSDocTypeReference";
+ SyntaxKind[SyntaxKind["JSDocOptionalType"] = 260] = "JSDocOptionalType";
+ SyntaxKind[SyntaxKind["JSDocFunctionType"] = 261] = "JSDocFunctionType";
+ SyntaxKind[SyntaxKind["JSDocVariadicType"] = 262] = "JSDocVariadicType";
+ SyntaxKind[SyntaxKind["JSDocConstructorType"] = 263] = "JSDocConstructorType";
+ SyntaxKind[SyntaxKind["JSDocThisType"] = 264] = "JSDocThisType";
+ SyntaxKind[SyntaxKind["JSDocComment"] = 265] = "JSDocComment";
+ SyntaxKind[SyntaxKind["JSDocTag"] = 266] = "JSDocTag";
+ SyntaxKind[SyntaxKind["JSDocParameterTag"] = 267] = "JSDocParameterTag";
+ SyntaxKind[SyntaxKind["JSDocReturnTag"] = 268] = "JSDocReturnTag";
+ SyntaxKind[SyntaxKind["JSDocTypeTag"] = 269] = "JSDocTypeTag";
+ SyntaxKind[SyntaxKind["JSDocTemplateTag"] = 270] = "JSDocTemplateTag";
+ // Synthesized list
+ SyntaxKind[SyntaxKind["SyntaxList"] = 271] = "SyntaxList";
+ // Enum value count
+ SyntaxKind[SyntaxKind["Count"] = 272] = "Count";
+ // Markers
+ SyntaxKind[SyntaxKind["FirstAssignment"] = 56] = "FirstAssignment";
+ SyntaxKind[SyntaxKind["LastAssignment"] = 68] = "LastAssignment";
+ SyntaxKind[SyntaxKind["FirstReservedWord"] = 70] = "FirstReservedWord";
+ SyntaxKind[SyntaxKind["LastReservedWord"] = 105] = "LastReservedWord";
+ SyntaxKind[SyntaxKind["FirstKeyword"] = 70] = "FirstKeyword";
+ SyntaxKind[SyntaxKind["LastKeyword"] = 134] = "LastKeyword";
+ SyntaxKind[SyntaxKind["FirstFutureReservedWord"] = 106] = "FirstFutureReservedWord";
+ SyntaxKind[SyntaxKind["LastFutureReservedWord"] = 114] = "LastFutureReservedWord";
+ SyntaxKind[SyntaxKind["FirstTypeNode"] = 151] = "FirstTypeNode";
+ SyntaxKind[SyntaxKind["LastTypeNode"] = 160] = "LastTypeNode";
+ SyntaxKind[SyntaxKind["FirstPunctuation"] = 15] = "FirstPunctuation";
+ SyntaxKind[SyntaxKind["LastPunctuation"] = 68] = "LastPunctuation";
+ SyntaxKind[SyntaxKind["FirstToken"] = 0] = "FirstToken";
+ SyntaxKind[SyntaxKind["LastToken"] = 134] = "LastToken";
+ SyntaxKind[SyntaxKind["FirstTriviaToken"] = 2] = "FirstTriviaToken";
+ SyntaxKind[SyntaxKind["LastTriviaToken"] = 7] = "LastTriviaToken";
+ SyntaxKind[SyntaxKind["FirstLiteralToken"] = 8] = "FirstLiteralToken";
+ SyntaxKind[SyntaxKind["LastLiteralToken"] = 11] = "LastLiteralToken";
+ SyntaxKind[SyntaxKind["FirstTemplateToken"] = 11] = "FirstTemplateToken";
+ SyntaxKind[SyntaxKind["LastTemplateToken"] = 14] = "LastTemplateToken";
+ SyntaxKind[SyntaxKind["FirstBinaryOperator"] = 25] = "FirstBinaryOperator";
+ SyntaxKind[SyntaxKind["LastBinaryOperator"] = 68] = "LastBinaryOperator";
+ SyntaxKind[SyntaxKind["FirstNode"] = 135] = "FirstNode";
+ })(ts.SyntaxKind || (ts.SyntaxKind = {}));
+ var SyntaxKind = ts.SyntaxKind;
+ (function (NodeFlags) {
+ NodeFlags[NodeFlags["Export"] = 1] = "Export";
+ NodeFlags[NodeFlags["Ambient"] = 2] = "Ambient";
+ NodeFlags[NodeFlags["Public"] = 16] = "Public";
+ NodeFlags[NodeFlags["Private"] = 32] = "Private";
+ NodeFlags[NodeFlags["Protected"] = 64] = "Protected";
+ NodeFlags[NodeFlags["Static"] = 128] = "Static";
+ NodeFlags[NodeFlags["Abstract"] = 256] = "Abstract";
+ NodeFlags[NodeFlags["Async"] = 512] = "Async";
+ NodeFlags[NodeFlags["Default"] = 1024] = "Default";
+ NodeFlags[NodeFlags["MultiLine"] = 2048] = "MultiLine";
+ NodeFlags[NodeFlags["Synthetic"] = 4096] = "Synthetic";
+ NodeFlags[NodeFlags["DeclarationFile"] = 8192] = "DeclarationFile";
+ NodeFlags[NodeFlags["Let"] = 16384] = "Let";
+ NodeFlags[NodeFlags["Const"] = 32768] = "Const";
+ NodeFlags[NodeFlags["OctalLiteral"] = 65536] = "OctalLiteral";
+ NodeFlags[NodeFlags["Namespace"] = 131072] = "Namespace";
+ NodeFlags[NodeFlags["ExportContext"] = 262144] = "ExportContext";
+ NodeFlags[NodeFlags["ContainsThis"] = 524288] = "ContainsThis";
+ NodeFlags[NodeFlags["Modifier"] = 2035] = "Modifier";
+ NodeFlags[NodeFlags["AccessibilityModifier"] = 112] = "AccessibilityModifier";
+ NodeFlags[NodeFlags["BlockScoped"] = 49152] = "BlockScoped";
+ })(ts.NodeFlags || (ts.NodeFlags = {}));
+ var NodeFlags = ts.NodeFlags;
+ /* @internal */
+ (function (ParserContextFlags) {
+ ParserContextFlags[ParserContextFlags["None"] = 0] = "None";
+ // If this node was parsed in a context where 'in-expressions' are not allowed.
+ ParserContextFlags[ParserContextFlags["DisallowIn"] = 1] = "DisallowIn";
+ // If this node was parsed in the 'yield' context created when parsing a generator.
+ ParserContextFlags[ParserContextFlags["Yield"] = 2] = "Yield";
+ // If this node was parsed as part of a decorator
+ ParserContextFlags[ParserContextFlags["Decorator"] = 4] = "Decorator";
+ // If this node was parsed in the 'await' context created when parsing an async function.
+ ParserContextFlags[ParserContextFlags["Await"] = 8] = "Await";
+ // If the parser encountered an error when parsing the code that created this node. Note
+ // the parser only sets this directly on the node it creates right after encountering the
+ // error.
+ ParserContextFlags[ParserContextFlags["ThisNodeHasError"] = 16] = "ThisNodeHasError";
+ // This node was parsed in a JavaScript file and can be processed differently. For example
+ // its type can be specified usign a JSDoc comment.
+ ParserContextFlags[ParserContextFlags["JavaScriptFile"] = 32] = "JavaScriptFile";
+ // Context flags set directly by the parser.
+ ParserContextFlags[ParserContextFlags["ParserGeneratedFlags"] = 31] = "ParserGeneratedFlags";
+ // Exclude these flags when parsing a Type
+ ParserContextFlags[ParserContextFlags["TypeExcludesFlags"] = 10] = "TypeExcludesFlags";
+ // Context flags computed by aggregating child flags upwards.
+ // Used during incremental parsing to determine if this node or any of its children had an
+ // error. Computed only once and then cached.
+ ParserContextFlags[ParserContextFlags["ThisNodeOrAnySubNodesHasError"] = 64] = "ThisNodeOrAnySubNodesHasError";
+ // Used to know if we've computed data from children and cached it in this node.
+ ParserContextFlags[ParserContextFlags["HasAggregatedChildData"] = 128] = "HasAggregatedChildData";
+ })(ts.ParserContextFlags || (ts.ParserContextFlags = {}));
+ var ParserContextFlags = ts.ParserContextFlags;
+ (function (JsxFlags) {
+ JsxFlags[JsxFlags["None"] = 0] = "None";
+ JsxFlags[JsxFlags["IntrinsicNamedElement"] = 1] = "IntrinsicNamedElement";
+ JsxFlags[JsxFlags["IntrinsicIndexedElement"] = 2] = "IntrinsicIndexedElement";
+ JsxFlags[JsxFlags["ClassElement"] = 4] = "ClassElement";
+ JsxFlags[JsxFlags["UnknownElement"] = 8] = "UnknownElement";
+ JsxFlags[JsxFlags["IntrinsicElement"] = 3] = "IntrinsicElement";
+ })(ts.JsxFlags || (ts.JsxFlags = {}));
+ var JsxFlags = ts.JsxFlags;
+ /* @internal */
+ (function (RelationComparisonResult) {
+ RelationComparisonResult[RelationComparisonResult["Succeeded"] = 1] = "Succeeded";
+ RelationComparisonResult[RelationComparisonResult["Failed"] = 2] = "Failed";
+ RelationComparisonResult[RelationComparisonResult["FailedAndReported"] = 3] = "FailedAndReported";
+ })(ts.RelationComparisonResult || (ts.RelationComparisonResult = {}));
+ var RelationComparisonResult = ts.RelationComparisonResult;
+ var OperationCanceledException = (function () {
+ function OperationCanceledException() {
+ }
+ return OperationCanceledException;
+ })();
+ ts.OperationCanceledException = OperationCanceledException;
+ /** Return code used by getEmitOutput function to indicate status of the function */
+ (function (ExitStatus) {
+ // Compiler ran successfully. Either this was a simple do-nothing compilation (for example,
+ // when -version or -help was provided, or this was a normal compilation, no diagnostics
+ // were produced, and all outputs were generated successfully.
+ ExitStatus[ExitStatus["Success"] = 0] = "Success";
+ // Diagnostics were produced and because of them no code was generated.
+ ExitStatus[ExitStatus["DiagnosticsPresent_OutputsSkipped"] = 1] = "DiagnosticsPresent_OutputsSkipped";
+ // Diagnostics were produced and outputs were generated in spite of them.
+ ExitStatus[ExitStatus["DiagnosticsPresent_OutputsGenerated"] = 2] = "DiagnosticsPresent_OutputsGenerated";
+ })(ts.ExitStatus || (ts.ExitStatus = {}));
+ var ExitStatus = ts.ExitStatus;
+ (function (TypeFormatFlags) {
+ TypeFormatFlags[TypeFormatFlags["None"] = 0] = "None";
+ TypeFormatFlags[TypeFormatFlags["WriteArrayAsGenericType"] = 1] = "WriteArrayAsGenericType";
+ TypeFormatFlags[TypeFormatFlags["UseTypeOfFunction"] = 2] = "UseTypeOfFunction";
+ TypeFormatFlags[TypeFormatFlags["NoTruncation"] = 4] = "NoTruncation";
+ TypeFormatFlags[TypeFormatFlags["WriteArrowStyleSignature"] = 8] = "WriteArrowStyleSignature";
+ TypeFormatFlags[TypeFormatFlags["WriteOwnNameForAnyLike"] = 16] = "WriteOwnNameForAnyLike";
+ TypeFormatFlags[TypeFormatFlags["WriteTypeArgumentsOfSignature"] = 32] = "WriteTypeArgumentsOfSignature";
+ TypeFormatFlags[TypeFormatFlags["InElementType"] = 64] = "InElementType";
+ TypeFormatFlags[TypeFormatFlags["UseFullyQualifiedType"] = 128] = "UseFullyQualifiedType";
+ })(ts.TypeFormatFlags || (ts.TypeFormatFlags = {}));
+ var TypeFormatFlags = ts.TypeFormatFlags;
+ (function (SymbolFormatFlags) {
+ SymbolFormatFlags[SymbolFormatFlags["None"] = 0] = "None";
+ // Write symbols's type argument if it is instantiated symbol
+ // eg. class C<T> { p: T } <-- Show p as C<T>.p here
+ // var a: C<number>;
+ // var p = a.p; <--- Here p is property of C<number> so show it as C<number>.p instead of just C.p
+ SymbolFormatFlags[SymbolFormatFlags["WriteTypeParametersOrArguments"] = 1] = "WriteTypeParametersOrArguments";
+ // Use only external alias information to get the symbol name in the given context
+ // eg. module m { export class c { } } import x = m.c;
+ // When this flag is specified m.c will be used to refer to the class instead of alias symbol x
+ SymbolFormatFlags[SymbolFormatFlags["UseOnlyExternalAliasing"] = 2] = "UseOnlyExternalAliasing";
+ })(ts.SymbolFormatFlags || (ts.SymbolFormatFlags = {}));
+ var SymbolFormatFlags = ts.SymbolFormatFlags;
+ /* @internal */
+ (function (SymbolAccessibility) {
+ SymbolAccessibility[SymbolAccessibility["Accessible"] = 0] = "Accessible";
+ SymbolAccessibility[SymbolAccessibility["NotAccessible"] = 1] = "NotAccessible";
+ SymbolAccessibility[SymbolAccessibility["CannotBeNamed"] = 2] = "CannotBeNamed";
+ })(ts.SymbolAccessibility || (ts.SymbolAccessibility = {}));
+ var SymbolAccessibility = ts.SymbolAccessibility;
+ /** Indicates how to serialize the name for a TypeReferenceNode when emitting decorator
+ * metadata */
+ /* @internal */
+ (function (TypeReferenceSerializationKind) {
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["Unknown"] = 0] = "Unknown";
+ // should be emitted using a safe fallback.
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithConstructSignatureAndValue"] = 1] = "TypeWithConstructSignatureAndValue";
+ // function that can be reached at runtime (e.g. a `class`
+ // declaration or a `var` declaration for the static side
+ // of a type, such as the global `Promise` type in lib.d.ts).
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["VoidType"] = 2] = "VoidType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["NumberLikeType"] = 3] = "NumberLikeType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["StringLikeType"] = 4] = "StringLikeType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["BooleanType"] = 5] = "BooleanType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["ArrayLikeType"] = 6] = "ArrayLikeType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["ESSymbolType"] = 7] = "ESSymbolType";
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithCallSignature"] = 8] = "TypeWithCallSignature";
+ // with call signatures.
+ TypeReferenceSerializationKind[TypeReferenceSerializationKind["ObjectType"] = 9] = "ObjectType";
+ })(ts.TypeReferenceSerializationKind || (ts.TypeReferenceSerializationKind = {}));
+ var TypeReferenceSerializationKind = ts.TypeReferenceSerializationKind;
+ (function (SymbolFlags) {
+ SymbolFlags[SymbolFlags["None"] = 0] = "None";
+ SymbolFlags[SymbolFlags["FunctionScopedVariable"] = 1] = "FunctionScopedVariable";
+ SymbolFlags[SymbolFlags["BlockScopedVariable"] = 2] = "BlockScopedVariable";
+ SymbolFlags[SymbolFlags["Property"] = 4] = "Property";
+ SymbolFlags[SymbolFlags["EnumMember"] = 8] = "EnumMember";
+ SymbolFlags[SymbolFlags["Function"] = 16] = "Function";
+ SymbolFlags[SymbolFlags["Class"] = 32] = "Class";
+ SymbolFlags[SymbolFlags["Interface"] = 64] = "Interface";
+ SymbolFlags[SymbolFlags["ConstEnum"] = 128] = "ConstEnum";
+ SymbolFlags[SymbolFlags["RegularEnum"] = 256] = "RegularEnum";
+ SymbolFlags[SymbolFlags["ValueModule"] = 512] = "ValueModule";
+ SymbolFlags[SymbolFlags["NamespaceModule"] = 1024] = "NamespaceModule";
+ SymbolFlags[SymbolFlags["TypeLiteral"] = 2048] = "TypeLiteral";
+ SymbolFlags[SymbolFlags["ObjectLiteral"] = 4096] = "ObjectLiteral";
+ SymbolFlags[SymbolFlags["Method"] = 8192] = "Method";
+ SymbolFlags[SymbolFlags["Constructor"] = 16384] = "Constructor";
+ SymbolFlags[SymbolFlags["GetAccessor"] = 32768] = "GetAccessor";
+ SymbolFlags[SymbolFlags["SetAccessor"] = 65536] = "SetAccessor";
+ SymbolFlags[SymbolFlags["Signature"] = 131072] = "Signature";
+ SymbolFlags[SymbolFlags["TypeParameter"] = 262144] = "TypeParameter";
+ SymbolFlags[SymbolFlags["TypeAlias"] = 524288] = "TypeAlias";
+ SymbolFlags[SymbolFlags["ExportValue"] = 1048576] = "ExportValue";
+ SymbolFlags[SymbolFlags["ExportType"] = 2097152] = "ExportType";
+ SymbolFlags[SymbolFlags["ExportNamespace"] = 4194304] = "ExportNamespace";
+ SymbolFlags[SymbolFlags["Alias"] = 8388608] = "Alias";
+ SymbolFlags[SymbolFlags["Instantiated"] = 16777216] = "Instantiated";
+ SymbolFlags[SymbolFlags["Merged"] = 33554432] = "Merged";
+ SymbolFlags[SymbolFlags["Transient"] = 67108864] = "Transient";
+ SymbolFlags[SymbolFlags["Prototype"] = 134217728] = "Prototype";
+ SymbolFlags[SymbolFlags["SyntheticProperty"] = 268435456] = "SyntheticProperty";
+ SymbolFlags[SymbolFlags["Optional"] = 536870912] = "Optional";
+ SymbolFlags[SymbolFlags["ExportStar"] = 1073741824] = "ExportStar";
+ SymbolFlags[SymbolFlags["Enum"] = 384] = "Enum";
+ SymbolFlags[SymbolFlags["Variable"] = 3] = "Variable";
+ SymbolFlags[SymbolFlags["Value"] = 107455] = "Value";
+ SymbolFlags[SymbolFlags["Type"] = 793056] = "Type";
+ SymbolFlags[SymbolFlags["Namespace"] = 1536] = "Namespace";
+ SymbolFlags[SymbolFlags["Module"] = 1536] = "Module";
+ SymbolFlags[SymbolFlags["Accessor"] = 98304] = "Accessor";
+ // Variables can be redeclared, but can not redeclare a block-scoped declaration with the
+ // same name, or any other value that is not a variable, e.g. ValueModule or Class
+ SymbolFlags[SymbolFlags["FunctionScopedVariableExcludes"] = 107454] = "FunctionScopedVariableExcludes";
+ // Block-scoped declarations are not allowed to be re-declared
+ // they can not merge with anything in the value space
+ SymbolFlags[SymbolFlags["BlockScopedVariableExcludes"] = 107455] = "BlockScopedVariableExcludes";
+ SymbolFlags[SymbolFlags["ParameterExcludes"] = 107455] = "ParameterExcludes";
+ SymbolFlags[SymbolFlags["PropertyExcludes"] = 107455] = "PropertyExcludes";
+ SymbolFlags[SymbolFlags["EnumMemberExcludes"] = 107455] = "EnumMemberExcludes";
+ SymbolFlags[SymbolFlags["FunctionExcludes"] = 106927] = "FunctionExcludes";
+ SymbolFlags[SymbolFlags["ClassExcludes"] = 899519] = "ClassExcludes";
+ SymbolFlags[SymbolFlags["InterfaceExcludes"] = 792960] = "InterfaceExcludes";
+ SymbolFlags[SymbolFlags["RegularEnumExcludes"] = 899327] = "RegularEnumExcludes";
+ SymbolFlags[SymbolFlags["ConstEnumExcludes"] = 899967] = "ConstEnumExcludes";
+ SymbolFlags[SymbolFlags["ValueModuleExcludes"] = 106639] = "ValueModuleExcludes";
+ SymbolFlags[SymbolFlags["NamespaceModuleExcludes"] = 0] = "NamespaceModuleExcludes";
+ SymbolFlags[SymbolFlags["MethodExcludes"] = 99263] = "MethodExcludes";
+ SymbolFlags[SymbolFlags["GetAccessorExcludes"] = 41919] = "GetAccessorExcludes";
+ SymbolFlags[SymbolFlags["SetAccessorExcludes"] = 74687] = "SetAccessorExcludes";
+ SymbolFlags[SymbolFlags["TypeParameterExcludes"] = 530912] = "TypeParameterExcludes";
+ SymbolFlags[SymbolFlags["TypeAliasExcludes"] = 793056] = "TypeAliasExcludes";
+ SymbolFlags[SymbolFlags["AliasExcludes"] = 8388608] = "AliasExcludes";
+ SymbolFlags[SymbolFlags["ModuleMember"] = 8914931] = "ModuleMember";
+ SymbolFlags[SymbolFlags["ExportHasLocal"] = 944] = "ExportHasLocal";
+ SymbolFlags[SymbolFlags["HasExports"] = 1952] = "HasExports";
+ SymbolFlags[SymbolFlags["HasMembers"] = 6240] = "HasMembers";
+ SymbolFlags[SymbolFlags["BlockScoped"] = 418] = "BlockScoped";
+ SymbolFlags[SymbolFlags["PropertyOrAccessor"] = 98308] = "PropertyOrAccessor";
+ SymbolFlags[SymbolFlags["Export"] = 7340032] = "Export";
+ /* @internal */
+ // The set of things we consider semantically classifiable. Used to speed up the LS during
+ // classification.
+ SymbolFlags[SymbolFlags["Classifiable"] = 788448] = "Classifiable";
+ })(ts.SymbolFlags || (ts.SymbolFlags = {}));
+ var SymbolFlags = ts.SymbolFlags;
+ /* @internal */
+ (function (NodeCheckFlags) {
+ NodeCheckFlags[NodeCheckFlags["TypeChecked"] = 1] = "TypeChecked";
+ NodeCheckFlags[NodeCheckFlags["LexicalThis"] = 2] = "LexicalThis";
+ NodeCheckFlags[NodeCheckFlags["CaptureThis"] = 4] = "CaptureThis";
+ NodeCheckFlags[NodeCheckFlags["EmitExtends"] = 8] = "EmitExtends";
+ NodeCheckFlags[NodeCheckFlags["EmitDecorate"] = 16] = "EmitDecorate";
+ NodeCheckFlags[NodeCheckFlags["EmitParam"] = 32] = "EmitParam";
+ NodeCheckFlags[NodeCheckFlags["EmitAwaiter"] = 64] = "EmitAwaiter";
+ NodeCheckFlags[NodeCheckFlags["EmitGenerator"] = 128] = "EmitGenerator";
+ NodeCheckFlags[NodeCheckFlags["SuperInstance"] = 256] = "SuperInstance";
+ NodeCheckFlags[NodeCheckFlags["SuperStatic"] = 512] = "SuperStatic";
+ NodeCheckFlags[NodeCheckFlags["ContextChecked"] = 1024] = "ContextChecked";
+ NodeCheckFlags[NodeCheckFlags["LexicalArguments"] = 2048] = "LexicalArguments";
+ NodeCheckFlags[NodeCheckFlags["CaptureArguments"] = 4096] = "CaptureArguments";
+ // Values for enum members have been computed, and any errors have been reported for them.
+ NodeCheckFlags[NodeCheckFlags["EnumValuesComputed"] = 8192] = "EnumValuesComputed";
+ NodeCheckFlags[NodeCheckFlags["BlockScopedBindingInLoop"] = 16384] = "BlockScopedBindingInLoop";
+ NodeCheckFlags[NodeCheckFlags["LexicalModuleMergesWithClass"] = 32768] = "LexicalModuleMergesWithClass";
+ })(ts.NodeCheckFlags || (ts.NodeCheckFlags = {}));
+ var NodeCheckFlags = ts.NodeCheckFlags;
+ (function (TypeFlags) {
+ TypeFlags[TypeFlags["Any"] = 1] = "Any";
+ TypeFlags[TypeFlags["String"] = 2] = "String";
+ TypeFlags[TypeFlags["Number"] = 4] = "Number";
+ TypeFlags[TypeFlags["Boolean"] = 8] = "Boolean";
+ TypeFlags[TypeFlags["Void"] = 16] = "Void";
+ TypeFlags[TypeFlags["Undefined"] = 32] = "Undefined";
+ TypeFlags[TypeFlags["Null"] = 64] = "Null";
+ TypeFlags[TypeFlags["Enum"] = 128] = "Enum";
+ TypeFlags[TypeFlags["StringLiteral"] = 256] = "StringLiteral";
+ TypeFlags[TypeFlags["TypeParameter"] = 512] = "TypeParameter";
+ TypeFlags[TypeFlags["Class"] = 1024] = "Class";
+ TypeFlags[TypeFlags["Interface"] = 2048] = "Interface";
+ TypeFlags[TypeFlags["Reference"] = 4096] = "Reference";
+ TypeFlags[TypeFlags["Tuple"] = 8192] = "Tuple";
+ TypeFlags[TypeFlags["Union"] = 16384] = "Union";
+ TypeFlags[TypeFlags["Intersection"] = 32768] = "Intersection";
+ TypeFlags[TypeFlags["Anonymous"] = 65536] = "Anonymous";
+ TypeFlags[TypeFlags["Instantiated"] = 131072] = "Instantiated";
+ /* @internal */
+ TypeFlags[TypeFlags["FromSignature"] = 262144] = "FromSignature";
+ TypeFlags[TypeFlags["ObjectLiteral"] = 524288] = "ObjectLiteral";
+ /* @internal */
+ TypeFlags[TypeFlags["FreshObjectLiteral"] = 1048576] = "FreshObjectLiteral";
+ /* @internal */
+ TypeFlags[TypeFlags["ContainsUndefinedOrNull"] = 2097152] = "ContainsUndefinedOrNull";
+ /* @internal */
+ TypeFlags[TypeFlags["ContainsObjectLiteral"] = 4194304] = "ContainsObjectLiteral";
+ /* @internal */
+ TypeFlags[TypeFlags["ContainsAnyFunctionType"] = 8388608] = "ContainsAnyFunctionType";
+ TypeFlags[TypeFlags["ESSymbol"] = 16777216] = "ESSymbol";
+ TypeFlags[TypeFlags["ThisType"] = 33554432] = "ThisType";
+ /* @internal */
+ TypeFlags[TypeFlags["Intrinsic"] = 16777343] = "Intrinsic";
+ /* @internal */
+ TypeFlags[TypeFlags["Primitive"] = 16777726] = "Primitive";
+ TypeFlags[TypeFlags["StringLike"] = 258] = "StringLike";
+ TypeFlags[TypeFlags["NumberLike"] = 132] = "NumberLike";
+ TypeFlags[TypeFlags["ObjectType"] = 80896] = "ObjectType";
+ TypeFlags[TypeFlags["UnionOrIntersection"] = 49152] = "UnionOrIntersection";
+ TypeFlags[TypeFlags["StructuredType"] = 130048] = "StructuredType";
+ /* @internal */
+ TypeFlags[TypeFlags["RequiresWidening"] = 6291456] = "RequiresWidening";
+ /* @internal */
+ TypeFlags[TypeFlags["PropagatingFlags"] = 14680064] = "PropagatingFlags";
+ })(ts.TypeFlags || (ts.TypeFlags = {}));
+ var TypeFlags = ts.TypeFlags;
+ (function (SignatureKind) {
+ SignatureKind[SignatureKind["Call"] = 0] = "Call";
+ SignatureKind[SignatureKind["Construct"] = 1] = "Construct";
+ })(ts.SignatureKind || (ts.SignatureKind = {}));
+ var SignatureKind = ts.SignatureKind;
+ (function (IndexKind) {
+ IndexKind[IndexKind["String"] = 0] = "String";
+ IndexKind[IndexKind["Number"] = 1] = "Number";
+ })(ts.IndexKind || (ts.IndexKind = {}));
+ var IndexKind = ts.IndexKind;
+ (function (DiagnosticCategory) {
+ DiagnosticCategory[DiagnosticCategory["Warning"] = 0] = "Warning";
+ DiagnosticCategory[DiagnosticCategory["Error"] = 1] = "Error";
+ DiagnosticCategory[DiagnosticCategory["Message"] = 2] = "Message";
+ })(ts.DiagnosticCategory || (ts.DiagnosticCategory = {}));
+ var DiagnosticCategory = ts.DiagnosticCategory;
+ (function (ModuleResolutionKind) {
+ ModuleResolutionKind[ModuleResolutionKind["Classic"] = 1] = "Classic";
+ ModuleResolutionKind[ModuleResolutionKind["NodeJs"] = 2] = "NodeJs";
+ })(ts.ModuleResolutionKind || (ts.ModuleResolutionKind = {}));
+ var ModuleResolutionKind = ts.ModuleResolutionKind;
+ (function (ModuleKind) {
+ ModuleKind[ModuleKind["None"] = 0] = "None";
+ ModuleKind[ModuleKind["CommonJS"] = 1] = "CommonJS";
+ ModuleKind[ModuleKind["AMD"] = 2] = "AMD";
+ ModuleKind[ModuleKind["UMD"] = 3] = "UMD";
+ ModuleKind[ModuleKind["System"] = 4] = "System";
+ ModuleKind[ModuleKind["ES6"] = 5] = "ES6";
+ ModuleKind[ModuleKind["ES2015"] = 5] = "ES2015";
+ })(ts.ModuleKind || (ts.ModuleKind = {}));
+ var ModuleKind = ts.ModuleKind;
+ (function (JsxEmit) {
+ JsxEmit[JsxEmit["None"] = 0] = "None";
+ JsxEmit[JsxEmit["Preserve"] = 1] = "Preserve";
+ JsxEmit[JsxEmit["React"] = 2] = "React";
+ })(ts.JsxEmit || (ts.JsxEmit = {}));
+ var JsxEmit = ts.JsxEmit;
+ (function (NewLineKind) {
+ NewLineKind[NewLineKind["CarriageReturnLineFeed"] = 0] = "CarriageReturnLineFeed";
+ NewLineKind[NewLineKind["LineFeed"] = 1] = "LineFeed";
+ })(ts.NewLineKind || (ts.NewLineKind = {}));
+ var NewLineKind = ts.NewLineKind;
+ (function (ScriptTarget) {
+ ScriptTarget[ScriptTarget["ES3"] = 0] = "ES3";
+ ScriptTarget[ScriptTarget["ES5"] = 1] = "ES5";
+ ScriptTarget[ScriptTarget["ES6"] = 2] = "ES6";
+ ScriptTarget[ScriptTarget["ES2015"] = 2] = "ES2015";
+ ScriptTarget[ScriptTarget["Latest"] = 2] = "Latest";
+ })(ts.ScriptTarget || (ts.ScriptTarget = {}));
+ var ScriptTarget = ts.ScriptTarget;
+ (function (LanguageVariant) {
+ LanguageVariant[LanguageVariant["Standard"] = 0] = "Standard";
+ LanguageVariant[LanguageVariant["JSX"] = 1] = "JSX";
+ })(ts.LanguageVariant || (ts.LanguageVariant = {}));
+ var LanguageVariant = ts.LanguageVariant;
+ /* @internal */
+ (function (CharacterCodes) {
+ CharacterCodes[CharacterCodes["nullCharacter"] = 0] = "nullCharacter";
+ CharacterCodes[CharacterCodes["maxAsciiCharacter"] = 127] = "maxAsciiCharacter";
+ CharacterCodes[CharacterCodes["lineFeed"] = 10] = "lineFeed";
+ CharacterCodes[CharacterCodes["carriageReturn"] = 13] = "carriageReturn";
+ CharacterCodes[CharacterCodes["lineSeparator"] = 8232] = "lineSeparator";
+ CharacterCodes[CharacterCodes["paragraphSeparator"] = 8233] = "paragraphSeparator";
+ CharacterCodes[CharacterCodes["nextLine"] = 133] = "nextLine";
+ // Unicode 3.0 space characters
+ CharacterCodes[CharacterCodes["space"] = 32] = "space";
+ CharacterCodes[CharacterCodes["nonBreakingSpace"] = 160] = "nonBreakingSpace";
+ CharacterCodes[CharacterCodes["enQuad"] = 8192] = "enQuad";
+ CharacterCodes[CharacterCodes["emQuad"] = 8193] = "emQuad";
+ CharacterCodes[CharacterCodes["enSpace"] = 8194] = "enSpace";
+ CharacterCodes[CharacterCodes["emSpace"] = 8195] = "emSpace";
+ CharacterCodes[CharacterCodes["threePerEmSpace"] = 8196] = "threePerEmSpace";
+ CharacterCodes[CharacterCodes["fourPerEmSpace"] = 8197] = "fourPerEmSpace";
+ CharacterCodes[CharacterCodes["sixPerEmSpace"] = 8198] = "sixPerEmSpace";
+ CharacterCodes[CharacterCodes["figureSpace"] = 8199] = "figureSpace";
+ CharacterCodes[CharacterCodes["punctuationSpace"] = 8200] = "punctuationSpace";
+ CharacterCodes[CharacterCodes["thinSpace"] = 8201] = "thinSpace";
+ CharacterCodes[CharacterCodes["hairSpace"] = 8202] = "hairSpace";
+ CharacterCodes[CharacterCodes["zeroWidthSpace"] = 8203] = "zeroWidthSpace";
+ CharacterCodes[CharacterCodes["narrowNoBreakSpace"] = 8239] = "narrowNoBreakSpace";
+ CharacterCodes[CharacterCodes["ideographicSpace"] = 12288] = "ideographicSpace";
+ CharacterCodes[CharacterCodes["mathematicalSpace"] = 8287] = "mathematicalSpace";
+ CharacterCodes[CharacterCodes["ogham"] = 5760] = "ogham";
+ CharacterCodes[CharacterCodes["_"] = 95] = "_";
+ CharacterCodes[CharacterCodes["$"] = 36] = "$";
+ CharacterCodes[CharacterCodes["_0"] = 48] = "_0";
+ CharacterCodes[CharacterCodes["_1"] = 49] = "_1";
+ CharacterCodes[CharacterCodes["_2"] = 50] = "_2";
+ CharacterCodes[CharacterCodes["_3"] = 51] = "_3";
+ CharacterCodes[CharacterCodes["_4"] = 52] = "_4";
+ CharacterCodes[CharacterCodes["_5"] = 53] = "_5";
+ CharacterCodes[CharacterCodes["_6"] = 54] = "_6";
+ CharacterCodes[CharacterCodes["_7"] = 55] = "_7";
+ CharacterCodes[CharacterCodes["_8"] = 56] = "_8";
+ CharacterCodes[CharacterCodes["_9"] = 57] = "_9";
+ CharacterCodes[CharacterCodes["a"] = 97] = "a";
+ CharacterCodes[CharacterCodes["b"] = 98] = "b";
+ CharacterCodes[CharacterCodes["c"] = 99] = "c";
+ CharacterCodes[CharacterCodes["d"] = 100] = "d";
+ CharacterCodes[CharacterCodes["e"] = 101] = "e";
+ CharacterCodes[CharacterCodes["f"] = 102] = "f";
+ CharacterCodes[CharacterCodes["g"] = 103] = "g";
+ CharacterCodes[CharacterCodes["h"] = 104] = "h";
+ CharacterCodes[CharacterCodes["i"] = 105] = "i";
+ CharacterCodes[CharacterCodes["j"] = 106] = "j";
+ CharacterCodes[CharacterCodes["k"] = 107] = "k";
+ CharacterCodes[CharacterCodes["l"] = 108] = "l";
+ CharacterCodes[CharacterCodes["m"] = 109] = "m";
+ CharacterCodes[CharacterCodes["n"] = 110] = "n";
+ CharacterCodes[CharacterCodes["o"] = 111] = "o";
+ CharacterCodes[CharacterCodes["p"] = 112] = "p";
+ CharacterCodes[CharacterCodes["q"] = 113] = "q";
+ CharacterCodes[CharacterCodes["r"] = 114] = "r";
+ CharacterCodes[CharacterCodes["s"] = 115] = "s";
+ CharacterCodes[CharacterCodes["t"] = 116] = "t";
+ CharacterCodes[CharacterCodes["u"] = 117] = "u";
+ CharacterCodes[CharacterCodes["v"] = 118] = "v";
+ CharacterCodes[CharacterCodes["w"] = 119] = "w";
+ CharacterCodes[CharacterCodes["x"] = 120] = "x";
+ CharacterCodes[CharacterCodes["y"] = 121] = "y";
+ CharacterCodes[CharacterCodes["z"] = 122] = "z";
+ CharacterCodes[CharacterCodes["A"] = 65] = "A";
+ CharacterCodes[CharacterCodes["B"] = 66] = "B";
+ CharacterCodes[CharacterCodes["C"] = 67] = "C";
+ CharacterCodes[CharacterCodes["D"] = 68] = "D";
+ CharacterCodes[CharacterCodes["E"] = 69] = "E";
+ CharacterCodes[CharacterCodes["F"] = 70] = "F";
+ CharacterCodes[CharacterCodes["G"] = 71] = "G";
+ CharacterCodes[CharacterCodes["H"] = 72] = "H";
+ CharacterCodes[CharacterCodes["I"] = 73] = "I";
+ CharacterCodes[CharacterCodes["J"] = 74] = "J";
+ CharacterCodes[CharacterCodes["K"] = 75] = "K";
+ CharacterCodes[CharacterCodes["L"] = 76] = "L";
+ CharacterCodes[CharacterCodes["M"] = 77] = "M";
+ CharacterCodes[CharacterCodes["N"] = 78] = "N";
+ CharacterCodes[CharacterCodes["O"] = 79] = "O";
+ CharacterCodes[CharacterCodes["P"] = 80] = "P";
+ CharacterCodes[CharacterCodes["Q"] = 81] = "Q";
+ CharacterCodes[CharacterCodes["R"] = 82] = "R";
+ CharacterCodes[CharacterCodes["S"] = 83] = "S";
+ CharacterCodes[CharacterCodes["T"] = 84] = "T";
+ CharacterCodes[CharacterCodes["U"] = 85] = "U";
+ CharacterCodes[CharacterCodes["V"] = 86] = "V";
+ CharacterCodes[CharacterCodes["W"] = 87] = "W";
+ CharacterCodes[CharacterCodes["X"] = 88] = "X";
+ CharacterCodes[CharacterCodes["Y"] = 89] = "Y";
+ CharacterCodes[CharacterCodes["Z"] = 90] = "Z";
+ CharacterCodes[CharacterCodes["ampersand"] = 38] = "ampersand";
+ CharacterCodes[CharacterCodes["asterisk"] = 42] = "asterisk";
+ CharacterCodes[CharacterCodes["at"] = 64] = "at";
+ CharacterCodes[CharacterCodes["backslash"] = 92] = "backslash";
+ CharacterCodes[CharacterCodes["backtick"] = 96] = "backtick";
+ CharacterCodes[CharacterCodes["bar"] = 124] = "bar";
+ CharacterCodes[CharacterCodes["caret"] = 94] = "caret";
+ CharacterCodes[CharacterCodes["closeBrace"] = 125] = "closeBrace";
+ CharacterCodes[CharacterCodes["closeBracket"] = 93] = "closeBracket";
+ CharacterCodes[CharacterCodes["closeParen"] = 41] = "closeParen";
+ CharacterCodes[CharacterCodes["colon"] = 58] = "colon";
+ CharacterCodes[CharacterCodes["comma"] = 44] = "comma";
+ CharacterCodes[CharacterCodes["dot"] = 46] = "dot";
+ CharacterCodes[CharacterCodes["doubleQuote"] = 34] = "doubleQuote";
+ CharacterCodes[CharacterCodes["equals"] = 61] = "equals";
+ CharacterCodes[CharacterCodes["exclamation"] = 33] = "exclamation";
+ CharacterCodes[CharacterCodes["greaterThan"] = 62] = "greaterThan";
+ CharacterCodes[CharacterCodes["hash"] = 35] = "hash";
+ CharacterCodes[CharacterCodes["lessThan"] = 60] = "lessThan";
+ CharacterCodes[CharacterCodes["minus"] = 45] = "minus";
+ CharacterCodes[CharacterCodes["openBrace"] = 123] = "openBrace";
+ CharacterCodes[CharacterCodes["openBracket"] = 91] = "openBracket";
+ CharacterCodes[CharacterCodes["openParen"] = 40] = "openParen";
+ CharacterCodes[CharacterCodes["percent"] = 37] = "percent";
+ CharacterCodes[CharacterCodes["plus"] = 43] = "plus";
+ CharacterCodes[CharacterCodes["question"] = 63] = "question";
+ CharacterCodes[CharacterCodes["semicolon"] = 59] = "semicolon";
+ CharacterCodes[CharacterCodes["singleQuote"] = 39] = "singleQuote";
+ CharacterCodes[CharacterCodes["slash"] = 47] = "slash";
+ CharacterCodes[CharacterCodes["tilde"] = 126] = "tilde";
+ CharacterCodes[CharacterCodes["backspace"] = 8] = "backspace";
+ CharacterCodes[CharacterCodes["formFeed"] = 12] = "formFeed";
+ CharacterCodes[CharacterCodes["byteOrderMark"] = 65279] = "byteOrderMark";
+ CharacterCodes[CharacterCodes["tab"] = 9] = "tab";
+ CharacterCodes[CharacterCodes["verticalTab"] = 11] = "verticalTab";
+ })(ts.CharacterCodes || (ts.CharacterCodes = {}));
+ var CharacterCodes = ts.CharacterCodes;
+})(ts || (ts = {}));
+/// <reference path="types.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ /**
+ * Ternary values are defined such that
+ * x & y is False if either x or y is False.
+ * x & y is Maybe if either x or y is Maybe, but neither x or y is False.
+ * x & y is True if both x and y are True.
+ * x | y is False if both x and y are False.
+ * x | y is Maybe if either x or y is Maybe, but neither x or y is True.
+ * x | y is True if either x or y is True.
+ */
+ (function (Ternary) {
+ Ternary[Ternary["False"] = 0] = "False";
+ Ternary[Ternary["Maybe"] = 1] = "Maybe";
+ Ternary[Ternary["True"] = -1] = "True";
+ })(ts.Ternary || (ts.Ternary = {}));
+ var Ternary = ts.Ternary;
+ function createFileMap(getCanonicalFileName) {
+ var files = {};
+ return {
+ get: get,
+ set: set,
+ contains: contains,
+ remove: remove,
+ clear: clear,
+ forEachValue: forEachValueInMap
+ };
+ function set(fileName, value) {
+ files[normalizeKey(fileName)] = value;
+ }
+ function get(fileName) {
+ return files[normalizeKey(fileName)];
+ }
+ function contains(fileName) {
+ return hasProperty(files, normalizeKey(fileName));
+ }
+ function remove(fileName) {
+ var key = normalizeKey(fileName);
+ delete files[key];
+ }
+ function forEachValueInMap(f) {
+ forEachValue(files, f);
+ }
+ function normalizeKey(key) {
+ return getCanonicalFileName(normalizeSlashes(key));
+ }
+ function clear() {
+ files = {};
+ }
+ }
+ ts.createFileMap = createFileMap;
+ (function (Comparison) {
+ Comparison[Comparison["LessThan"] = -1] = "LessThan";
+ Comparison[Comparison["EqualTo"] = 0] = "EqualTo";
+ Comparison[Comparison["GreaterThan"] = 1] = "GreaterThan";
+ })(ts.Comparison || (ts.Comparison = {}));
+ var Comparison = ts.Comparison;
+ /**
+ * Iterates through 'array' by index and performs the callback on each element of array until the callback
+ * returns a truthy value, then returns that value.
+ * If no such value is found, the callback is applied to each element of array and undefined is returned.
+ */
+ function forEach(array, callback) {
+ if (array) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ var result = callback(array[i], i);
+ if (result) {
+ return result;
+ }
+ }
+ }
+ return undefined;
+ }
+ ts.forEach = forEach;
+ function contains(array, value) {
+ if (array) {
+ for (var _i = 0; _i < array.length; _i++) {
+ var v = array[_i];
+ if (v === value) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ ts.contains = contains;
+ function indexOf(array, value) {
+ if (array) {
+ for (var i = 0, len = array.length; i < len; i++) {
+ if (array[i] === value) {
+ return i;
+ }
+ }
+ }
+ return -1;
+ }
+ ts.indexOf = indexOf;
+ function countWhere(array, predicate) {
+ var count = 0;
+ if (array) {
+ for (var _i = 0; _i < array.length; _i++) {
+ var v = array[_i];
+ if (predicate(v)) {
+ count++;
+ }
+ }
+ }
+ return count;
+ }
+ ts.countWhere = countWhere;
+ function filter(array, f) {
+ var result;
+ if (array) {
+ result = [];
+ for (var _i = 0; _i < array.length; _i++) {
+ var item = array[_i];
+ if (f(item)) {
+ result.push(item);
+ }
+ }
+ }
+ return result;
+ }
+ ts.filter = filter;
+ function map(array, f) {
+ var result;
+ if (array) {
+ result = [];
+ for (var _i = 0; _i < array.length; _i++) {
+ var v = array[_i];
+ result.push(f(v));
+ }
+ }
+ return result;
+ }
+ ts.map = map;
+ function concatenate(array1, array2) {
+ if (!array2 || !array2.length)
+ return array1;
+ if (!array1 || !array1.length)
+ return array2;
+ return array1.concat(array2);
+ }
+ ts.concatenate = concatenate;
+ function deduplicate(array) {
+ var result;
+ if (array) {
+ result = [];
+ for (var _i = 0; _i < array.length; _i++) {
+ var item = array[_i];
+ if (!contains(result, item)) {
+ result.push(item);
+ }
+ }
+ }
+ return result;
+ }
+ ts.deduplicate = deduplicate;
+ function sum(array, prop) {
+ var result = 0;
+ for (var _i = 0; _i < array.length; _i++) {
+ var v = array[_i];
+ result += v[prop];
+ }
+ return result;
+ }
+ ts.sum = sum;
+ function addRange(to, from) {
+ if (to && from) {
+ for (var _i = 0; _i < from.length; _i++) {
+ var v = from[_i];
+ to.push(v);
+ }
+ }
+ }
+ ts.addRange = addRange;
+ function rangeEquals(array1, array2, pos, end) {
+ while (pos < end) {
+ if (array1[pos] !== array2[pos]) {
+ return false;
+ }
+ pos++;
+ }
+ return true;
+ }
+ ts.rangeEquals = rangeEquals;
+ /**
+ * Returns the last element of an array if non-empty, undefined otherwise.
+ */
+ function lastOrUndefined(array) {
+ if (array.length === 0) {
+ return undefined;
+ }
+ return array[array.length - 1];
+ }
+ ts.lastOrUndefined = lastOrUndefined;
+ /**
+ * Performs a binary search, finding the index at which 'value' occurs in 'array'.
+ * If no such index is found, returns the 2's-complement of first index at which
+ * number[index] exceeds number.
+ * @param array A sorted array whose first element must be no larger than number
+ * @param number The value to be searched for in the array.
+ */
+ function binarySearch(array, value) {
+ var low = 0;
+ var high = array.length - 1;
+ while (low <= high) {
+ var middle = low + ((high - low) >> 1);
+ var midValue = array[middle];
+ if (midValue === value) {
+ return middle;
+ }
+ else if (midValue > value) {
+ high = middle - 1;
+ }
+ else {
+ low = middle + 1;
+ }
+ }
+ return ~low;
+ }
+ ts.binarySearch = binarySearch;
+ function reduceLeft(array, f, initial) {
+ if (array) {
+ var count = array.length;
+ if (count > 0) {
+ var pos = 0;
+ var result = arguments.length <= 2 ? array[pos++] : initial;
+ while (pos < count) {
+ result = f(result, array[pos++]);
+ }
+ return result;
+ }
+ }
+ return initial;
+ }
+ ts.reduceLeft = reduceLeft;
+ function reduceRight(array, f, initial) {
+ if (array) {
+ var pos = array.length - 1;
+ if (pos >= 0) {
+ var result = arguments.length <= 2 ? array[pos--] : initial;
+ while (pos >= 0) {
+ result = f(result, array[pos--]);
+ }
+ return result;
+ }
+ }
+ return initial;
+ }
+ ts.reduceRight = reduceRight;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+ function hasProperty(map, key) {
+ return hasOwnProperty.call(map, key);
+ }
+ ts.hasProperty = hasProperty;
+ function getProperty(map, key) {
+ return hasOwnProperty.call(map, key) ? map[key] : undefined;
+ }
+ ts.getProperty = getProperty;
+ function isEmpty(map) {
+ for (var id in map) {
+ if (hasProperty(map, id)) {
+ return false;
+ }
+ }
+ return true;
+ }
+ ts.isEmpty = isEmpty;
+ function clone(object) {
+ var result = {};
+ for (var id in object) {
+ result[id] = object[id];
+ }
+ return result;
+ }
+ ts.clone = clone;
+ function extend(first, second) {
+ var result = {};
+ for (var id in first) {
+ result[id] = first[id];
+ }
+ for (var id in second) {
+ if (!hasProperty(result, id)) {
+ result[id] = second[id];
+ }
+ }
+ return result;
+ }
+ ts.extend = extend;
+ function forEachValue(map, callback) {
+ var result;
+ for (var id in map) {
+ if (result = callback(map[id]))
+ break;
+ }
+ return result;
+ }
+ ts.forEachValue = forEachValue;
+ function forEachKey(map, callback) {
+ var result;
+ for (var id in map) {
+ if (result = callback(id))
+ break;
+ }
+ return result;
+ }
+ ts.forEachKey = forEachKey;
+ function lookUp(map, key) {
+ return hasProperty(map, key) ? map[key] : undefined;
+ }
+ ts.lookUp = lookUp;
+ function copyMap(source, target) {
+ for (var p in source) {
+ target[p] = source[p];
+ }
+ }
+ ts.copyMap = copyMap;
+ /**
+ * Creates a map from the elements of an array.
+ *
+ * @param array the array of input elements.
+ * @param makeKey a function that produces a key for a given element.
+ *
+ * This function makes no effort to avoid collisions; if any two elements produce
+ * the same key with the given 'makeKey' function, then the element with the higher
+ * index in the array will be the one associated with the produced key.
+ */
+ function arrayToMap(array, makeKey) {
+ var result = {};
+ forEach(array, function (value) {
+ result[makeKey(value)] = value;
+ });
+ return result;
+ }
+ ts.arrayToMap = arrayToMap;
+ function memoize(callback) {
+ var value;
+ return function () {
+ if (callback) {
+ value = callback();
+ callback = undefined;
+ }
+ return value;
+ };
+ }
+ ts.memoize = memoize;
+ function formatStringFromArgs(text, args, baseIndex) {
+ baseIndex = baseIndex || 0;
+ return text.replace(/{(\d+)}/g, function (match, index) { return args[+index + baseIndex]; });
+ }
+ ts.localizedDiagnosticMessages = undefined;
+ function getLocaleSpecificMessage(message) {
+ return ts.localizedDiagnosticMessages && ts.localizedDiagnosticMessages[message]
+ ? ts.localizedDiagnosticMessages[message]
+ : message;
+ }
+ ts.getLocaleSpecificMessage = getLocaleSpecificMessage;
+ function createFileDiagnostic(file, start, length, message) {
+ var end = start + length;
+ Debug.assert(start >= 0, "start must be non-negative, is " + start);
+ Debug.assert(length >= 0, "length must be non-negative, is " + length);
+ if (file) {
+ Debug.assert(start <= file.text.length, "start must be within the bounds of the file. " + start + " > " + file.text.length);
+ Debug.assert(end <= file.text.length, "end must be the bounds of the file. " + end + " > " + file.text.length);
+ }
+ var text = getLocaleSpecificMessage(message.key);
+ if (arguments.length > 4) {
+ text = formatStringFromArgs(text, arguments, 4);
+ }
+ return {
+ file: file,
+ start: start,
+ length: length,
+ messageText: text,
+ category: message.category,
+ code: message.code
+ };
+ }
+ ts.createFileDiagnostic = createFileDiagnostic;
+ function createCompilerDiagnostic(message) {
+ var text = getLocaleSpecificMessage(message.key);
+ if (arguments.length > 1) {
+ text = formatStringFromArgs(text, arguments, 1);
+ }
+ return {
+ file: undefined,
+ start: undefined,
+ length: undefined,
+ messageText: text,
+ category: message.category,
+ code: message.code
+ };
+ }
+ ts.createCompilerDiagnostic = createCompilerDiagnostic;
+ function chainDiagnosticMessages(details, message) {
+ var text = getLocaleSpecificMessage(message.key);
+ if (arguments.length > 2) {
+ text = formatStringFromArgs(text, arguments, 2);
+ }
+ return {
+ messageText: text,
+ category: message.category,
+ code: message.code,
+ next: details
+ };
+ }
+ ts.chainDiagnosticMessages = chainDiagnosticMessages;
+ function concatenateDiagnosticMessageChains(headChain, tailChain) {
+ var lastChain = headChain;
+ while (lastChain.next) {
+ lastChain = lastChain.next;
+ }
+ lastChain.next = tailChain;
+ return headChain;
+ }
+ ts.concatenateDiagnosticMessageChains = concatenateDiagnosticMessageChains;
+ function compareValues(a, b) {
+ if (a === b)
+ return 0 /* EqualTo */;
+ if (a === undefined)
+ return -1 /* LessThan */;
+ if (b === undefined)
+ return 1 /* GreaterThan */;
+ return a < b ? -1 /* LessThan */ : 1 /* GreaterThan */;
+ }
+ ts.compareValues = compareValues;
+ function getDiagnosticFileName(diagnostic) {
+ return diagnostic.file ? diagnostic.file.fileName : undefined;
+ }
+ function compareDiagnostics(d1, d2) {
+ return compareValues(getDiagnosticFileName(d1), getDiagnosticFileName(d2)) ||
+ compareValues(d1.start, d2.start) ||
+ compareValues(d1.length, d2.length) ||
+ compareValues(d1.code, d2.code) ||
+ compareMessageText(d1.messageText, d2.messageText) ||
+ 0 /* EqualTo */;
+ }
+ ts.compareDiagnostics = compareDiagnostics;
+ function compareMessageText(text1, text2) {
+ while (text1 && text2) {
+ // We still have both chains.
+ var string1 = typeof text1 === "string" ? text1 : text1.messageText;
+ var string2 = typeof text2 === "string" ? text2 : text2.messageText;
+ var res = compareValues(string1, string2);
+ if (res) {
+ return res;
+ }
+ text1 = typeof text1 === "string" ? undefined : text1.next;
+ text2 = typeof text2 === "string" ? undefined : text2.next;
+ }
+ if (!text1 && !text2) {
+ // if the chains are done, then these messages are the same.
+ return 0 /* EqualTo */;
+ }
+ // We still have one chain remaining. The shorter chain should come first.
+ return text1 ? 1 /* GreaterThan */ : -1 /* LessThan */;
+ }
+ function sortAndDeduplicateDiagnostics(diagnostics) {
+ return deduplicateSortedDiagnostics(diagnostics.sort(compareDiagnostics));
+ }
+ ts.sortAndDeduplicateDiagnostics = sortAndDeduplicateDiagnostics;
+ function deduplicateSortedDiagnostics(diagnostics) {
+ if (diagnostics.length < 2) {
+ return diagnostics;
+ }
+ var newDiagnostics = [diagnostics[0]];
+ var previousDiagnostic = diagnostics[0];
+ for (var i = 1; i < diagnostics.length; i++) {
+ var currentDiagnostic = diagnostics[i];
+ var isDupe = compareDiagnostics(currentDiagnostic, previousDiagnostic) === 0 /* EqualTo */;
+ if (!isDupe) {
+ newDiagnostics.push(currentDiagnostic);
+ previousDiagnostic = currentDiagnostic;
+ }
+ }
+ return newDiagnostics;
+ }
+ ts.deduplicateSortedDiagnostics = deduplicateSortedDiagnostics;
+ function normalizeSlashes(path) {
+ return path.replace(/\\/g, "/");
+ }
+ ts.normalizeSlashes = normalizeSlashes;
+ // Returns length of path root (i.e. length of "/", "x:/", "//server/share/, file:///user/files")
+ function getRootLength(path) {
+ if (path.charCodeAt(0) === 47 /* slash */) {
+ if (path.charCodeAt(1) !== 47 /* slash */)
+ return 1;
+ var p1 = path.indexOf("/", 2);
+ if (p1 < 0)
+ return 2;
+ var p2 = path.indexOf("/", p1 + 1);
+ if (p2 < 0)
+ return p1 + 1;
+ return p2 + 1;
+ }
+ if (path.charCodeAt(1) === 58 /* colon */) {
+ if (path.charCodeAt(2) === 47 /* slash */)
+ return 3;
+ return 2;
+ }
+ // Per RFC 1738 'file' URI schema has the shape file://<host>/<path>
+ // if <host> is omitted then it is assumed that host value is 'localhost',
+ // however slash after the omitted <host> is not removed.
+ // file:///folder1/file1 - this is a correct URI
+ // file://folder2/file2 - this is an incorrect URI
+ if (path.lastIndexOf("file:///", 0) === 0) {
+ return "file:///".length;
+ }
+ var idx = path.indexOf("://");
+ if (idx !== -1) {
+ return idx + "://".length;
+ }
+ return 0;
+ }
+ ts.getRootLength = getRootLength;
+ ts.directorySeparator = "/";
+ function getNormalizedParts(normalizedSlashedPath, rootLength) {
+ var parts = normalizedSlashedPath.substr(rootLength).split(ts.directorySeparator);
+ var normalized = [];
+ for (var _i = 0; _i < parts.length; _i++) {
+ var part = parts[_i];
+ if (part !== ".") {
+ if (part === ".." && normalized.length > 0 && lastOrUndefined(normalized) !== "..") {
+ normalized.pop();
+ }
+ else {
+ // A part may be an empty string (which is 'falsy') if the path had consecutive slashes,
+ // e.g. "path//file.ts". Drop these before re-joining the parts.
+ if (part) {
+ normalized.push(part);
+ }
+ }
+ }
+ }
+ return normalized;
+ }
+ function normalizePath(path) {
+ path = normalizeSlashes(path);
+ var rootLength = getRootLength(path);
+ var normalized = getNormalizedParts(path, rootLength);
+ return path.substr(0, rootLength) + normalized.join(ts.directorySeparator);
+ }
+ ts.normalizePath = normalizePath;
+ function getDirectoryPath(path) {
+ return path.substr(0, Math.max(getRootLength(path), path.lastIndexOf(ts.directorySeparator)));
+ }
+ ts.getDirectoryPath = getDirectoryPath;
+ function isUrl(path) {
+ return path && !isRootedDiskPath(path) && path.indexOf("://") !== -1;
+ }
+ ts.isUrl = isUrl;
+ function isRootedDiskPath(path) {
+ return getRootLength(path) !== 0;
+ }
+ ts.isRootedDiskPath = isRootedDiskPath;
+ function normalizedPathComponents(path, rootLength) {
+ var normalizedParts = getNormalizedParts(path, rootLength);
+ return [path.substr(0, rootLength)].concat(normalizedParts);
+ }
+ function getNormalizedPathComponents(path, currentDirectory) {
+ path = normalizeSlashes(path);
+ var rootLength = getRootLength(path);
+ if (rootLength === 0) {
+ // If the path is not rooted it is relative to current directory
+ path = combinePaths(normalizeSlashes(currentDirectory), path);
+ rootLength = getRootLength(path);
+ }
+ return normalizedPathComponents(path, rootLength);
+ }
+ ts.getNormalizedPathComponents = getNormalizedPathComponents;
+ function getNormalizedAbsolutePath(fileName, currentDirectory) {
+ return getNormalizedPathFromPathComponents(getNormalizedPathComponents(fileName, currentDirectory));
+ }
+ ts.getNormalizedAbsolutePath = getNormalizedAbsolutePath;
+ function getNormalizedPathFromPathComponents(pathComponents) {
+ if (pathComponents && pathComponents.length) {
+ return pathComponents[0] + pathComponents.slice(1).join(ts.directorySeparator);
+ }
+ }
+ ts.getNormalizedPathFromPathComponents = getNormalizedPathFromPathComponents;
+ function getNormalizedPathComponentsOfUrl(url) {
+ // Get root length of http://www.website.com/folder1/foler2/
+ // In this example the root is: http://www.website.com/
+ // normalized path components should be ["http://www.website.com/", "folder1", "folder2"]
+ var urlLength = url.length;
+ // Initial root length is http:// part
+ var rootLength = url.indexOf("://") + "://".length;
+ while (rootLength < urlLength) {
+ // Consume all immediate slashes in the protocol
+ // eg.initial rootlength is just file:// but it needs to consume another "/" in file:///
+ if (url.charCodeAt(rootLength) === 47 /* slash */) {
+ rootLength++;
+ }
+ else {
+ // non slash character means we continue proceeding to next component of root search
+ break;
+ }
+ }
+ // there are no parts after http:// just return current string as the pathComponent
+ if (rootLength === urlLength) {
+ return [url];
+ }
+ // Find the index of "/" after website.com so the root can be http://www.website.com/ (from existing http://)
+ var indexOfNextSlash = url.indexOf(ts.directorySeparator, rootLength);
+ if (indexOfNextSlash !== -1) {
+ // Found the "/" after the website.com so the root is length of http://www.website.com/
+ // and get components afetr the root normally like any other folder components
+ rootLength = indexOfNextSlash + 1;
+ return normalizedPathComponents(url, rootLength);
+ }
+ else {
+ // Can't find the host assume the rest of the string as component
+ // but make sure we append "/" to it as root is not joined using "/"
+ // eg. if url passed in was http://website.com we want to use root as [http://website.com/]
+ // so that other path manipulations will be correct and it can be merged with relative paths correctly
+ return [url + ts.directorySeparator];
+ }
+ }
+ function getNormalizedPathOrUrlComponents(pathOrUrl, currentDirectory) {
+ if (isUrl(pathOrUrl)) {
+ return getNormalizedPathComponentsOfUrl(pathOrUrl);
+ }
+ else {
+ return getNormalizedPathComponents(pathOrUrl, currentDirectory);
+ }
+ }
+ function getRelativePathToDirectoryOrUrl(directoryPathOrUrl, relativeOrAbsolutePath, currentDirectory, getCanonicalFileName, isAbsolutePathAnUrl) {
+ var pathComponents = getNormalizedPathOrUrlComponents(relativeOrAbsolutePath, currentDirectory);
+ var directoryComponents = getNormalizedPathOrUrlComponents(directoryPathOrUrl, currentDirectory);
+ if (directoryComponents.length > 1 && lastOrUndefined(directoryComponents) === "") {
+ // If the directory path given was of type test/cases/ then we really need components of directory to be only till its name
+ // that is ["test", "cases", ""] needs to be actually ["test", "cases"]
+ directoryComponents.length--;
+ }
+ // Find the component that differs
+ for (var joinStartIndex = 0; joinStartIndex < pathComponents.length && joinStartIndex < directoryComponents.length; joinStartIndex++) {
+ if (getCanonicalFileName(directoryComponents[joinStartIndex]) !== getCanonicalFileName(pathComponents[joinStartIndex])) {
+ break;
+ }
+ }
+ // Get the relative path
+ if (joinStartIndex) {
+ var relativePath = "";
+ var relativePathComponents = pathComponents.slice(joinStartIndex, pathComponents.length);
+ for (; joinStartIndex < directoryComponents.length; joinStartIndex++) {
+ if (directoryComponents[joinStartIndex] !== "") {
+ relativePath = relativePath + ".." + ts.directorySeparator;
+ }
+ }
+ return relativePath + relativePathComponents.join(ts.directorySeparator);
+ }
+ // Cant find the relative path, get the absolute path
+ var absolutePath = getNormalizedPathFromPathComponents(pathComponents);
+ if (isAbsolutePathAnUrl && isRootedDiskPath(absolutePath)) {
+ absolutePath = "file:///" + absolutePath;
+ }
+ return absolutePath;
+ }
+ ts.getRelativePathToDirectoryOrUrl = getRelativePathToDirectoryOrUrl;
+ function getBaseFileName(path) {
+ if (!path) {
+ return undefined;
+ }
+ var i = path.lastIndexOf(ts.directorySeparator);
+ return i < 0 ? path : path.substring(i + 1);
+ }
+ ts.getBaseFileName = getBaseFileName;
+ function combinePaths(path1, path2) {
+ if (!(path1 && path1.length))
+ return path2;
+ if (!(path2 && path2.length))
+ return path1;
+ if (getRootLength(path2) !== 0)
+ return path2;
+ if (path1.charAt(path1.length - 1) === ts.directorySeparator)
+ return path1 + path2;
+ return path1 + ts.directorySeparator + path2;
+ }
+ ts.combinePaths = combinePaths;
+ function fileExtensionIs(path, extension) {
+ var pathLen = path.length;
+ var extLen = extension.length;
+ return pathLen > extLen && path.substr(pathLen - extLen, extLen) === extension;
+ }
+ ts.fileExtensionIs = fileExtensionIs;
+ /**
+ * List of supported extensions in order of file resolution precedence.
+ */
+ ts.supportedExtensions = [".ts", ".tsx", ".d.ts"];
+ /**
+ * List of extensions that will be used to look for external modules.
+ * This list is kept separate from supportedExtensions to for cases when we'll allow to include .js files in compilation,
+ * but still would like to load only TypeScript files as modules
+ */
+ ts.moduleFileExtensions = ts.supportedExtensions;
+ function isSupportedSourceFileName(fileName) {
+ if (!fileName) {
+ return false;
+ }
+ for (var _i = 0; _i < ts.supportedExtensions.length; _i++) {
+ var extension = ts.supportedExtensions[_i];
+ if (fileExtensionIs(fileName, extension)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ ts.isSupportedSourceFileName = isSupportedSourceFileName;
+ var extensionsToRemove = [".d.ts", ".ts", ".js", ".tsx", ".jsx"];
+ function removeFileExtension(path) {
+ for (var _i = 0; _i < extensionsToRemove.length; _i++) {
+ var ext = extensionsToRemove[_i];
+ if (fileExtensionIs(path, ext)) {
+ return path.substr(0, path.length - ext.length);
+ }
+ }
+ return path;
+ }
+ ts.removeFileExtension = removeFileExtension;
+ var backslashOrDoubleQuote = /[\"\\]/g;
+ var escapedCharsRegExp = /[\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
+ var escapedCharsMap = {
+ "\0": "\\0",
+ "\t": "\\t",
+ "\v": "\\v",
+ "\f": "\\f",
+ "\b": "\\b",
+ "\r": "\\r",
+ "\n": "\\n",
+ "\\": "\\\\",
+ "\"": "\\\"",
+ "\u2028": "\\u2028",
+ "\u2029": "\\u2029",
+ "\u0085": "\\u0085" // nextLine
+ };
+ function Symbol(flags, name) {
+ this.flags = flags;
+ this.name = name;
+ this.declarations = undefined;
+ }
+ function Type(checker, flags) {
+ this.flags = flags;
+ }
+ function Signature(checker) {
+ }
+ ts.objectAllocator = {
+ getNodeConstructor: function (kind) {
+ function Node() {
+ }
+ Node.prototype = {
+ kind: kind,
+ pos: -1,
+ end: -1,
+ flags: 0,
+ parent: undefined
+ };
+ return Node;
+ },
+ getSymbolConstructor: function () { return Symbol; },
+ getTypeConstructor: function () { return Type; },
+ getSignatureConstructor: function () { return Signature; }
+ };
+ (function (AssertionLevel) {
+ AssertionLevel[AssertionLevel["None"] = 0] = "None";
+ AssertionLevel[AssertionLevel["Normal"] = 1] = "Normal";
+ AssertionLevel[AssertionLevel["Aggressive"] = 2] = "Aggressive";
+ AssertionLevel[AssertionLevel["VeryAggressive"] = 3] = "VeryAggressive";
+ })(ts.AssertionLevel || (ts.AssertionLevel = {}));
+ var AssertionLevel = ts.AssertionLevel;
+ var Debug;
+ (function (Debug) {
+ var currentAssertionLevel = 0 /* None */;
+ function shouldAssert(level) {
+ return currentAssertionLevel >= level;
+ }
+ Debug.shouldAssert = shouldAssert;
+ function assert(expression, message, verboseDebugInfo) {
+ if (!expression) {
+ var verboseDebugString = "";
+ if (verboseDebugInfo) {
+ verboseDebugString = "\r\nVerbose Debug Information: " + verboseDebugInfo();
+ }
+ throw new Error("Debug Failure. False expression: " + (message || "") + verboseDebugString);
+ }
+ }
+ Debug.assert = assert;
+ function fail(message) {
+ Debug.assert(false, message);
+ }
+ Debug.fail = fail;
+ })(Debug = ts.Debug || (ts.Debug = {}));
+ function copyListRemovingItem(item, list) {
+ var copiedList = [];
+ for (var i = 0, len = list.length; i < len; i++) {
+ if (list[i] !== item) {
+ copiedList.push(list[i]);
+ }
+ }
+ return copiedList;
+ }
+ ts.copyListRemovingItem = copyListRemovingItem;
+})(ts || (ts = {}));
+/// <reference path="core.ts"/>
+var ts;
+(function (ts) {
+ ts.sys = (function () {
+ function getWScriptSystem() {
+ var fso = new ActiveXObject("Scripting.FileSystemObject");
+ var fileStream = new ActiveXObject("ADODB.Stream");
+ fileStream.Type = 2 /*text*/;
+ var binaryStream = new ActiveXObject("ADODB.Stream");
+ binaryStream.Type = 1 /*binary*/;
+ var args = [];
+ for (var i = 0; i < WScript.Arguments.length; i++) {
+ args[i] = WScript.Arguments.Item(i);
+ }
+ function readFile(fileName, encoding) {
+ if (!fso.FileExists(fileName)) {
+ return undefined;
+ }
+ fileStream.Open();
+ try {
+ if (encoding) {
+ fileStream.Charset = encoding;
+ fileStream.LoadFromFile(fileName);
+ }
+ else {
+ // Load file and read the first two bytes into a string with no interpretation
+ fileStream.Charset = "x-ansi";
+ fileStream.LoadFromFile(fileName);
+ var bom = fileStream.ReadText(2) || "";
+ // Position must be at 0 before encoding can be changed
+ fileStream.Position = 0;
+ // [0xFF,0xFE] and [0xFE,0xFF] mean utf-16 (little or big endian), otherwise default to utf-8
+ fileStream.Charset = bom.length >= 2 && (bom.charCodeAt(0) === 0xFF && bom.charCodeAt(1) === 0xFE || bom.charCodeAt(0) === 0xFE && bom.charCodeAt(1) === 0xFF) ? "unicode" : "utf-8";
+ }
+ // ReadText method always strips byte order mark from resulting string
+ return fileStream.ReadText();
+ }
+ catch (e) {
+ throw e;
+ }
+ finally {
+ fileStream.Close();
+ }
+ }
+ function writeFile(fileName, data, writeByteOrderMark) {
+ fileStream.Open();
+ binaryStream.Open();
+ try {
+ // Write characters in UTF-8 encoding
+ fileStream.Charset = "utf-8";
+ fileStream.WriteText(data);
+ // If we don't want the BOM, then skip it by setting the starting location to 3 (size of BOM).
+ // If not, start from position 0, as the BOM will be added automatically when charset==utf8.
+ if (writeByteOrderMark) {
+ fileStream.Position = 0;
+ }
+ else {
+ fileStream.Position = 3;
+ }
+ fileStream.CopyTo(binaryStream);
+ binaryStream.SaveToFile(fileName, 2 /*overwrite*/);
+ }
+ finally {
+ binaryStream.Close();
+ fileStream.Close();
+ }
+ }
+ function getCanonicalPath(path) {
+ return path.toLowerCase();
+ }
+ function getNames(collection) {
+ var result = [];
+ for (var e = new Enumerator(collection); !e.atEnd(); e.moveNext()) {
+ result.push(e.item().Name);
+ }
+ return result.sort();
+ }
+ function readDirectory(path, extension, exclude) {
+ var result = [];
+ exclude = ts.map(exclude, function (s) { return getCanonicalPath(ts.combinePaths(path, s)); });
+ visitDirectory(path);
+ return result;
+ function visitDirectory(path) {
+ var folder = fso.GetFolder(path || ".");
+ var files = getNames(folder.files);
+ for (var _i = 0; _i < files.length; _i++) {
+ var current = files[_i];
+ var name_1 = ts.combinePaths(path, current);
+ if ((!extension || ts.fileExtensionIs(name_1, extension)) && !ts.contains(exclude, getCanonicalPath(name_1))) {
+ result.push(name_1);
+ }
+ }
+ var subfolders = getNames(folder.subfolders);
+ for (var _a = 0; _a < subfolders.length; _a++) {
+ var current = subfolders[_a];
+ var name_2 = ts.combinePaths(path, current);
+ if (!ts.contains(exclude, getCanonicalPath(name_2))) {
+ visitDirectory(name_2);
+ }
+ }
+ }
+ }
+ return {
+ args: args,
+ newLine: "\r\n",
+ useCaseSensitiveFileNames: false,
+ write: function (s) {
+ WScript.StdOut.Write(s);
+ },
+ readFile: readFile,
+ writeFile: writeFile,
+ resolvePath: function (path) {
+ return fso.GetAbsolutePathName(path);
+ },
+ fileExists: function (path) {
+ return fso.FileExists(path);
+ },
+ directoryExists: function (path) {
+ return fso.FolderExists(path);
+ },
+ createDirectory: function (directoryName) {
+ if (!this.directoryExists(directoryName)) {
+ fso.CreateFolder(directoryName);
+ }
+ },
+ getExecutingFilePath: function () {
+ return WScript.ScriptFullName;
+ },
+ getCurrentDirectory: function () {
+ return new ActiveXObject("WScript.Shell").CurrentDirectory;
+ },
+ readDirectory: readDirectory,
+ exit: function (exitCode) {
+ try {
+ WScript.Quit(exitCode);
+ }
+ catch (e) {
+ }
+ }
+ };
+ }
+ function getNodeSystem() {
+ var _fs = require("fs");
+ var _path = require("path");
+ var _os = require("os");
+ // average async stat takes about 30 microseconds
+ // set chunk size to do 30 files in < 1 millisecond
+ function createWatchedFileSet(interval, chunkSize) {
+ if (interval === void 0) { interval = 2500; }
+ if (chunkSize === void 0) { chunkSize = 30; }
+ var watchedFiles = [];
+ var nextFileToCheck = 0;
+ var watchTimer;
+ function getModifiedTime(fileName) {
+ return _fs.statSync(fileName).mtime;
+ }
+ function poll(checkedIndex) {
+ var watchedFile = watchedFiles[checkedIndex];
+ if (!watchedFile) {
+ return;
+ }
+ _fs.stat(watchedFile.fileName, function (err, stats) {
+ if (err) {
+ watchedFile.callback(watchedFile.fileName);
+ }
+ else if (watchedFile.mtime.getTime() !== stats.mtime.getTime()) {
+ watchedFile.mtime = getModifiedTime(watchedFile.fileName);
+ watchedFile.callback(watchedFile.fileName, watchedFile.mtime.getTime() === 0);
+ }
+ });
+ }
+ // this implementation uses polling and
+ // stat due to inconsistencies of fs.watch
+ // and efficiency of stat on modern filesystems
+ function startWatchTimer() {
+ watchTimer = setInterval(function () {
+ var count = 0;
+ var nextToCheck = nextFileToCheck;
+ var firstCheck = -1;
+ while ((count < chunkSize) && (nextToCheck !== firstCheck)) {
+ poll(nextToCheck);
+ if (firstCheck < 0) {
+ firstCheck = nextToCheck;
+ }
+ nextToCheck++;
+ if (nextToCheck === watchedFiles.length) {
+ nextToCheck = 0;
+ }
+ count++;
+ }
+ nextFileToCheck = nextToCheck;
+ }, interval);
+ }
+ function addFile(fileName, callback) {
+ var file = {
+ fileName: fileName,
+ callback: callback,
+ mtime: getModifiedTime(fileName)
+ };
+ watchedFiles.push(file);
+ if (watchedFiles.length === 1) {
+ startWatchTimer();
+ }
+ return file;
+ }
+ function removeFile(file) {
+ watchedFiles = ts.copyListRemovingItem(file, watchedFiles);
+ }
+ return {
+ getModifiedTime: getModifiedTime,
+ poll: poll,
+ startWatchTimer: startWatchTimer,
+ addFile: addFile,
+ removeFile: removeFile
+ };
+ }
+ // REVIEW: for now this implementation uses polling.
+ // The advantage of polling is that it works reliably
+ // on all os and with network mounted files.
+ // For 90 referenced files, the average time to detect
+ // changes is 2*msInterval (by default 5 seconds).
+ // The overhead of this is .04 percent (1/2500) with
+ // average pause of < 1 millisecond (and max
+ // pause less than 1.5 milliseconds); question is
+ // do we anticipate reference sets in the 100s and
+ // do we care about waiting 10-20 seconds to detect
+ // changes for large reference sets? If so, do we want
+ // to increase the chunk size or decrease the interval
+ // time dynamically to match the large reference set?
+ var watchedFileSet = createWatchedFileSet();
+ function isNode4OrLater() {
+ return parseInt(process.version.charAt(1)) >= 4;
+ }
+ var platform = _os.platform();
+ // win32\win64 are case insensitive platforms, MacOS (darwin) by default is also case insensitive
+ var useCaseSensitiveFileNames = platform !== "win32" && platform !== "win64" && platform !== "darwin";
+ function readFile(fileName, encoding) {
+ if (!_fs.existsSync(fileName)) {
+ return undefined;
+ }
+ var buffer = _fs.readFileSync(fileName);
+ var len = buffer.length;
+ if (len >= 2 && buffer[0] === 0xFE && buffer[1] === 0xFF) {
+ // Big endian UTF-16 byte order mark detected. Since big endian is not supported by node.js,
+ // flip all byte pairs and treat as little endian.
+ len &= ~1;
+ for (var i = 0; i < len; i += 2) {
+ var temp = buffer[i];
+ buffer[i] = buffer[i + 1];
+ buffer[i + 1] = temp;
+ }
+ return buffer.toString("utf16le", 2);
+ }
+ if (len >= 2 && buffer[0] === 0xFF && buffer[1] === 0xFE) {
+ // Little endian UTF-16 byte order mark detected
+ return buffer.toString("utf16le", 2);
+ }
+ if (len >= 3 && buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
+ // UTF-8 byte order mark detected
+ return buffer.toString("utf8", 3);
+ }
+ // Default is UTF-8 with no byte order mark
+ return buffer.toString("utf8");
+ }
+ function writeFile(fileName, data, writeByteOrderMark) {
+ // If a BOM is required, emit one
+ if (writeByteOrderMark) {
+ data = "\uFEFF" + data;
+ }
+ _fs.writeFileSync(fileName, data, "utf8");
+ }
+ function getCanonicalPath(path) {
+ return useCaseSensitiveFileNames ? path.toLowerCase() : path;
+ }
+ function readDirectory(path, extension, exclude) {
+ var result = [];
+ exclude = ts.map(exclude, function (s) { return getCanonicalPath(ts.combinePaths(path, s)); });
+ visitDirectory(path);
+ return result;
+ function visitDirectory(path) {
+ var files = _fs.readdirSync(path || ".").sort();
+ var directories = [];
+ for (var _i = 0; _i < files.length; _i++) {
+ var current = files[_i];
+ var name_3 = ts.combinePaths(path, current);
+ if (!ts.contains(exclude, getCanonicalPath(name_3))) {
+ var stat = _fs.statSync(name_3);
+ if (stat.isFile()) {
+ if (!extension || ts.fileExtensionIs(name_3, extension)) {
+ result.push(name_3);
+ }
+ }
+ else if (stat.isDirectory()) {
+ directories.push(name_3);
+ }
+ }
+ }
+ for (var _a = 0; _a < directories.length; _a++) {
+ var current = directories[_a];
+ visitDirectory(current);
+ }
+ }
+ }
+ return {
+ args: process.argv.slice(2),
+ newLine: _os.EOL,
+ useCaseSensitiveFileNames: useCaseSensitiveFileNames,
+ write: function (s) {
+ var buffer = new Buffer(s, "utf8");
+ var offset = 0;
+ var toWrite = buffer.length;
+ var written = 0;
+ // 1 is a standard descriptor for stdout
+ while ((written = _fs.writeSync(1, buffer, offset, toWrite)) < toWrite) {
+ offset += written;
+ toWrite -= written;
+ }
+ },
+ readFile: readFile,
+ writeFile: writeFile,
+ watchFile: function (fileName, callback) {
+ // Node 4.0 stablized the `fs.watch` function on Windows which avoids polling
+ // and is more efficient than `fs.watchFile` (ref: https://github.com/nodejs/node/pull/2649
+ // and https://github.com/Microsoft/TypeScript/issues/4643), therefore
+ // if the current node.js version is newer than 4, use `fs.watch` instead.
+ if (isNode4OrLater()) {
+ // Note: in node the callback of fs.watch is given only the relative file name as a parameter
+ return _fs.watch(fileName, function (eventName, relativeFileName) { return callback(fileName); });
+ }
+ var watchedFile = watchedFileSet.addFile(fileName, callback);
+ return {
+ close: function () { return watchedFileSet.removeFile(watchedFile); }
+ };
+ },
+ watchDirectory: function (path, callback, recursive) {
+ // Node 4.0 `fs.watch` function supports the "recursive" option on both OSX and Windows
+ // (ref: https://github.com/nodejs/node/pull/2649 and https://github.com/Microsoft/TypeScript/issues/4643)
+ return _fs.watch(path, { persisten: true, recursive: !!recursive }, function (eventName, relativeFileName) {
+ // In watchDirectory we only care about adding and removing files (when event name is
+ // "rename"); changes made within files are handled by corresponding fileWatchers (when
+ // event name is "change")
+ if (eventName === "rename") {
+ // When deleting a file, the passed baseFileName is null
+ callback(!relativeFileName ? relativeFileName : ts.normalizePath(ts.combinePaths(path, relativeFileName)));
+ }
+ ;
+ });
+ },
+ resolvePath: function (path) {
+ return _path.resolve(path);
+ },
+ fileExists: function (path) {
+ return _fs.existsSync(path);
+ },
+ directoryExists: function (path) {
+ return _fs.existsSync(path) && _fs.statSync(path).isDirectory();
+ },
+ createDirectory: function (directoryName) {
+ if (!this.directoryExists(directoryName)) {
+ _fs.mkdirSync(directoryName);
+ }
+ },
+ getExecutingFilePath: function () {
+ return __filename;
+ },
+ getCurrentDirectory: function () {
+ return process.cwd();
+ },
+ readDirectory: readDirectory,
+ getMemoryUsage: function () {
+ if (global.gc) {
+ global.gc();
+ }
+ return process.memoryUsage().heapUsed;
+ },
+ exit: function (exitCode) {
+ process.exit(exitCode);
+ }
+ };
+ }
+ if (typeof WScript !== "undefined" && typeof ActiveXObject === "function") {
+ return getWScriptSystem();
+ }
+ else if (typeof process !== "undefined" && process.nextTick && !process.browser && typeof require !== "undefined") {
+ // process and process.nextTick checks if current environment is node-like
+ // process.browser check excludes webpack and browserify
+ return getNodeSystem();
+ }
+ else {
+ return undefined; // Unsupported host
+ }
+ })();
+})(ts || (ts = {}));
+// <auto-generated />
+/// <reference path="types.ts" />
+/* @internal */
+var ts;
+(function (ts) {
+ ts.Diagnostics = {
+ Unterminated_string_literal: { code: 1002, category: ts.DiagnosticCategory.Error, key: "Unterminated string literal." },
+ Identifier_expected: { code: 1003, category: ts.DiagnosticCategory.Error, key: "Identifier expected." },
+ _0_expected: { code: 1005, category: ts.DiagnosticCategory.Error, key: "'{0}' expected." },
+ A_file_cannot_have_a_reference_to_itself: { code: 1006, category: ts.DiagnosticCategory.Error, key: "A file cannot have a reference to itself." },
+ Trailing_comma_not_allowed: { code: 1009, category: ts.DiagnosticCategory.Error, key: "Trailing comma not allowed." },
+ Asterisk_Slash_expected: { code: 1010, category: ts.DiagnosticCategory.Error, key: "'*/' expected." },
+ Unexpected_token: { code: 1012, category: ts.DiagnosticCategory.Error, key: "Unexpected token." },
+ A_rest_parameter_must_be_last_in_a_parameter_list: { code: 1014, category: ts.DiagnosticCategory.Error, key: "A rest parameter must be last in a parameter list." },
+ Parameter_cannot_have_question_mark_and_initializer: { code: 1015, category: ts.DiagnosticCategory.Error, key: "Parameter cannot have question mark and initializer." },
+ A_required_parameter_cannot_follow_an_optional_parameter: { code: 1016, category: ts.DiagnosticCategory.Error, key: "A required parameter cannot follow an optional parameter." },
+ An_index_signature_cannot_have_a_rest_parameter: { code: 1017, category: ts.DiagnosticCategory.Error, key: "An index signature cannot have a rest parameter." },
+ An_index_signature_parameter_cannot_have_an_accessibility_modifier: { code: 1018, category: ts.DiagnosticCategory.Error, key: "An index signature parameter cannot have an accessibility modifier." },
+ An_index_signature_parameter_cannot_have_a_question_mark: { code: 1019, category: ts.DiagnosticCategory.Error, key: "An index signature parameter cannot have a question mark." },
+ An_index_signature_parameter_cannot_have_an_initializer: { code: 1020, category: ts.DiagnosticCategory.Error, key: "An index signature parameter cannot have an initializer." },
+ An_index_signature_must_have_a_type_annotation: { code: 1021, category: ts.DiagnosticCategory.Error, key: "An index signature must have a type annotation." },
+ An_index_signature_parameter_must_have_a_type_annotation: { code: 1022, category: ts.DiagnosticCategory.Error, key: "An index signature parameter must have a type annotation." },
+ An_index_signature_parameter_type_must_be_string_or_number: { code: 1023, category: ts.DiagnosticCategory.Error, key: "An index signature parameter type must be 'string' or 'number'." },
+ Accessibility_modifier_already_seen: { code: 1028, category: ts.DiagnosticCategory.Error, key: "Accessibility modifier already seen." },
+ _0_modifier_must_precede_1_modifier: { code: 1029, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier must precede '{1}' modifier." },
+ _0_modifier_already_seen: { code: 1030, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier already seen." },
+ _0_modifier_cannot_appear_on_a_class_element: { code: 1031, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot appear on a class element." },
+ super_must_be_followed_by_an_argument_list_or_member_access: { code: 1034, category: ts.DiagnosticCategory.Error, key: "'super' must be followed by an argument list or member access." },
+ Only_ambient_modules_can_use_quoted_names: { code: 1035, category: ts.DiagnosticCategory.Error, key: "Only ambient modules can use quoted names." },
+ Statements_are_not_allowed_in_ambient_contexts: { code: 1036, category: ts.DiagnosticCategory.Error, key: "Statements are not allowed in ambient contexts." },
+ A_declare_modifier_cannot_be_used_in_an_already_ambient_context: { code: 1038, category: ts.DiagnosticCategory.Error, key: "A 'declare' modifier cannot be used in an already ambient context." },
+ Initializers_are_not_allowed_in_ambient_contexts: { code: 1039, category: ts.DiagnosticCategory.Error, key: "Initializers are not allowed in ambient contexts." },
+ _0_modifier_cannot_be_used_in_an_ambient_context: { code: 1040, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot be used in an ambient context." },
+ _0_modifier_cannot_be_used_with_a_class_declaration: { code: 1041, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot be used with a class declaration." },
+ _0_modifier_cannot_be_used_here: { code: 1042, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot be used here." },
+ _0_modifier_cannot_appear_on_a_data_property: { code: 1043, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot appear on a data property." },
+ _0_modifier_cannot_appear_on_a_module_element: { code: 1044, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot appear on a module element." },
+ A_0_modifier_cannot_be_used_with_an_interface_declaration: { code: 1045, category: ts.DiagnosticCategory.Error, key: "A '{0}' modifier cannot be used with an interface declaration." },
+ A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file: { code: 1046, category: ts.DiagnosticCategory.Error, key: "A 'declare' modifier is required for a top level declaration in a .d.ts file." },
+ A_rest_parameter_cannot_be_optional: { code: 1047, category: ts.DiagnosticCategory.Error, key: "A rest parameter cannot be optional." },
+ A_rest_parameter_cannot_have_an_initializer: { code: 1048, category: ts.DiagnosticCategory.Error, key: "A rest parameter cannot have an initializer." },
+ A_set_accessor_must_have_exactly_one_parameter: { code: 1049, category: ts.DiagnosticCategory.Error, key: "A 'set' accessor must have exactly one parameter." },
+ A_set_accessor_cannot_have_an_optional_parameter: { code: 1051, category: ts.DiagnosticCategory.Error, key: "A 'set' accessor cannot have an optional parameter." },
+ A_set_accessor_parameter_cannot_have_an_initializer: { code: 1052, category: ts.DiagnosticCategory.Error, key: "A 'set' accessor parameter cannot have an initializer." },
+ A_set_accessor_cannot_have_rest_parameter: { code: 1053, category: ts.DiagnosticCategory.Error, key: "A 'set' accessor cannot have rest parameter." },
+ A_get_accessor_cannot_have_parameters: { code: 1054, category: ts.DiagnosticCategory.Error, key: "A 'get' accessor cannot have parameters." },
+ Type_0_is_not_a_valid_async_function_return_type: { code: 1055, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not a valid async function return type." },
+ Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher: { code: 1056, category: ts.DiagnosticCategory.Error, key: "Accessors are only available when targeting ECMAScript 5 and higher." },
+ An_async_function_or_method_must_have_a_valid_awaitable_return_type: { code: 1057, category: ts.DiagnosticCategory.Error, key: "An async function or method must have a valid awaitable return type." },
+ Operand_for_await_does_not_have_a_valid_callable_then_member: { code: 1058, category: ts.DiagnosticCategory.Error, key: "Operand for 'await' does not have a valid callable 'then' member." },
+ Return_expression_in_async_function_does_not_have_a_valid_callable_then_member: { code: 1059, category: ts.DiagnosticCategory.Error, key: "Return expression in async function does not have a valid callable 'then' member." },
+ Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member: { code: 1060, category: ts.DiagnosticCategory.Error, key: "Expression body for async arrow function does not have a valid callable 'then' member." },
+ Enum_member_must_have_initializer: { code: 1061, category: ts.DiagnosticCategory.Error, key: "Enum member must have initializer." },
+ _0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method: { code: 1062, category: ts.DiagnosticCategory.Error, key: "{0} is referenced directly or indirectly in the fulfillment callback of its own 'then' method." },
+ An_export_assignment_cannot_be_used_in_a_namespace: { code: 1063, category: ts.DiagnosticCategory.Error, key: "An export assignment cannot be used in a namespace." },
+ In_ambient_enum_declarations_member_initializer_must_be_constant_expression: { code: 1066, category: ts.DiagnosticCategory.Error, key: "In ambient enum declarations member initializer must be constant expression." },
+ Unexpected_token_A_constructor_method_accessor_or_property_was_expected: { code: 1068, category: ts.DiagnosticCategory.Error, key: "Unexpected token. A constructor, method, accessor, or property was expected." },
+ A_0_modifier_cannot_be_used_with_an_import_declaration: { code: 1079, category: ts.DiagnosticCategory.Error, key: "A '{0}' modifier cannot be used with an import declaration." },
+ Invalid_reference_directive_syntax: { code: 1084, category: ts.DiagnosticCategory.Error, key: "Invalid 'reference' directive syntax." },
+ Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher: { code: 1085, category: ts.DiagnosticCategory.Error, key: "Octal literals are not available when targeting ECMAScript 5 and higher." },
+ An_accessor_cannot_be_declared_in_an_ambient_context: { code: 1086, category: ts.DiagnosticCategory.Error, key: "An accessor cannot be declared in an ambient context." },
+ _0_modifier_cannot_appear_on_a_constructor_declaration: { code: 1089, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot appear on a constructor declaration." },
+ _0_modifier_cannot_appear_on_a_parameter: { code: 1090, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot appear on a parameter." },
+ Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement: { code: 1091, category: ts.DiagnosticCategory.Error, key: "Only a single variable declaration is allowed in a 'for...in' statement." },
+ Type_parameters_cannot_appear_on_a_constructor_declaration: { code: 1092, category: ts.DiagnosticCategory.Error, key: "Type parameters cannot appear on a constructor declaration." },
+ Type_annotation_cannot_appear_on_a_constructor_declaration: { code: 1093, category: ts.DiagnosticCategory.Error, key: "Type annotation cannot appear on a constructor declaration." },
+ An_accessor_cannot_have_type_parameters: { code: 1094, category: ts.DiagnosticCategory.Error, key: "An accessor cannot have type parameters." },
+ A_set_accessor_cannot_have_a_return_type_annotation: { code: 1095, category: ts.DiagnosticCategory.Error, key: "A 'set' accessor cannot have a return type annotation." },
+ An_index_signature_must_have_exactly_one_parameter: { code: 1096, category: ts.DiagnosticCategory.Error, key: "An index signature must have exactly one parameter." },
+ _0_list_cannot_be_empty: { code: 1097, category: ts.DiagnosticCategory.Error, key: "'{0}' list cannot be empty." },
+ Type_parameter_list_cannot_be_empty: { code: 1098, category: ts.DiagnosticCategory.Error, key: "Type parameter list cannot be empty." },
+ Type_argument_list_cannot_be_empty: { code: 1099, category: ts.DiagnosticCategory.Error, key: "Type argument list cannot be empty." },
+ Invalid_use_of_0_in_strict_mode: { code: 1100, category: ts.DiagnosticCategory.Error, key: "Invalid use of '{0}' in strict mode." },
+ with_statements_are_not_allowed_in_strict_mode: { code: 1101, category: ts.DiagnosticCategory.Error, key: "'with' statements are not allowed in strict mode." },
+ delete_cannot_be_called_on_an_identifier_in_strict_mode: { code: 1102, category: ts.DiagnosticCategory.Error, key: "'delete' cannot be called on an identifier in strict mode." },
+ A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement: { code: 1104, category: ts.DiagnosticCategory.Error, key: "A 'continue' statement can only be used within an enclosing iteration statement." },
+ A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement: { code: 1105, category: ts.DiagnosticCategory.Error, key: "A 'break' statement can only be used within an enclosing iteration or switch statement." },
+ Jump_target_cannot_cross_function_boundary: { code: 1107, category: ts.DiagnosticCategory.Error, key: "Jump target cannot cross function boundary." },
+ A_return_statement_can_only_be_used_within_a_function_body: { code: 1108, category: ts.DiagnosticCategory.Error, key: "A 'return' statement can only be used within a function body." },
+ Expression_expected: { code: 1109, category: ts.DiagnosticCategory.Error, key: "Expression expected." },
+ Type_expected: { code: 1110, category: ts.DiagnosticCategory.Error, key: "Type expected." },
+ A_class_member_cannot_be_declared_optional: { code: 1112, category: ts.DiagnosticCategory.Error, key: "A class member cannot be declared optional." },
+ A_default_clause_cannot_appear_more_than_once_in_a_switch_statement: { code: 1113, category: ts.DiagnosticCategory.Error, key: "A 'default' clause cannot appear more than once in a 'switch' statement." },
+ Duplicate_label_0: { code: 1114, category: ts.DiagnosticCategory.Error, key: "Duplicate label '{0}'" },
+ A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement: { code: 1115, category: ts.DiagnosticCategory.Error, key: "A 'continue' statement can only jump to a label of an enclosing iteration statement." },
+ A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement: { code: 1116, category: ts.DiagnosticCategory.Error, key: "A 'break' statement can only jump to a label of an enclosing statement." },
+ An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode: { code: 1117, category: ts.DiagnosticCategory.Error, key: "An object literal cannot have multiple properties with the same name in strict mode." },
+ An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name: { code: 1118, category: ts.DiagnosticCategory.Error, key: "An object literal cannot have multiple get/set accessors with the same name." },
+ An_object_literal_cannot_have_property_and_accessor_with_the_same_name: { code: 1119, category: ts.DiagnosticCategory.Error, key: "An object literal cannot have property and accessor with the same name." },
+ An_export_assignment_cannot_have_modifiers: { code: 1120, category: ts.DiagnosticCategory.Error, key: "An export assignment cannot have modifiers." },
+ Octal_literals_are_not_allowed_in_strict_mode: { code: 1121, category: ts.DiagnosticCategory.Error, key: "Octal literals are not allowed in strict mode." },
+ A_tuple_type_element_list_cannot_be_empty: { code: 1122, category: ts.DiagnosticCategory.Error, key: "A tuple type element list cannot be empty." },
+ Variable_declaration_list_cannot_be_empty: { code: 1123, category: ts.DiagnosticCategory.Error, key: "Variable declaration list cannot be empty." },
+ Digit_expected: { code: 1124, category: ts.DiagnosticCategory.Error, key: "Digit expected." },
+ Hexadecimal_digit_expected: { code: 1125, category: ts.DiagnosticCategory.Error, key: "Hexadecimal digit expected." },
+ Unexpected_end_of_text: { code: 1126, category: ts.DiagnosticCategory.Error, key: "Unexpected end of text." },
+ Invalid_character: { code: 1127, category: ts.DiagnosticCategory.Error, key: "Invalid character." },
+ Declaration_or_statement_expected: { code: 1128, category: ts.DiagnosticCategory.Error, key: "Declaration or statement expected." },
+ Statement_expected: { code: 1129, category: ts.DiagnosticCategory.Error, key: "Statement expected." },
+ case_or_default_expected: { code: 1130, category: ts.DiagnosticCategory.Error, key: "'case' or 'default' expected." },
+ Property_or_signature_expected: { code: 1131, category: ts.DiagnosticCategory.Error, key: "Property or signature expected." },
+ Enum_member_expected: { code: 1132, category: ts.DiagnosticCategory.Error, key: "Enum member expected." },
+ Variable_declaration_expected: { code: 1134, category: ts.DiagnosticCategory.Error, key: "Variable declaration expected." },
+ Argument_expression_expected: { code: 1135, category: ts.DiagnosticCategory.Error, key: "Argument expression expected." },
+ Property_assignment_expected: { code: 1136, category: ts.DiagnosticCategory.Error, key: "Property assignment expected." },
+ Expression_or_comma_expected: { code: 1137, category: ts.DiagnosticCategory.Error, key: "Expression or comma expected." },
+ Parameter_declaration_expected: { code: 1138, category: ts.DiagnosticCategory.Error, key: "Parameter declaration expected." },
+ Type_parameter_declaration_expected: { code: 1139, category: ts.DiagnosticCategory.Error, key: "Type parameter declaration expected." },
+ Type_argument_expected: { code: 1140, category: ts.DiagnosticCategory.Error, key: "Type argument expected." },
+ String_literal_expected: { code: 1141, category: ts.DiagnosticCategory.Error, key: "String literal expected." },
+ Line_break_not_permitted_here: { code: 1142, category: ts.DiagnosticCategory.Error, key: "Line break not permitted here." },
+ or_expected: { code: 1144, category: ts.DiagnosticCategory.Error, key: "'{' or ';' expected." },
+ Modifiers_not_permitted_on_index_signature_members: { code: 1145, category: ts.DiagnosticCategory.Error, key: "Modifiers not permitted on index signature members." },
+ Declaration_expected: { code: 1146, category: ts.DiagnosticCategory.Error, key: "Declaration expected." },
+ Import_declarations_in_a_namespace_cannot_reference_a_module: { code: 1147, category: ts.DiagnosticCategory.Error, key: "Import declarations in a namespace cannot reference a module." },
+ Cannot_compile_modules_unless_the_module_flag_is_provided: { code: 1148, category: ts.DiagnosticCategory.Error, key: "Cannot compile modules unless the '--module' flag is provided." },
+ File_name_0_differs_from_already_included_file_name_1_only_in_casing: { code: 1149, category: ts.DiagnosticCategory.Error, key: "File name '{0}' differs from already included file name '{1}' only in casing" },
+ new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead: { code: 1150, category: ts.DiagnosticCategory.Error, key: "'new T[]' cannot be used to create an array. Use 'new Array<T>()' instead." },
+ const_declarations_must_be_initialized: { code: 1155, category: ts.DiagnosticCategory.Error, key: "'const' declarations must be initialized" },
+ const_declarations_can_only_be_declared_inside_a_block: { code: 1156, category: ts.DiagnosticCategory.Error, key: "'const' declarations can only be declared inside a block." },
+ let_declarations_can_only_be_declared_inside_a_block: { code: 1157, category: ts.DiagnosticCategory.Error, key: "'let' declarations can only be declared inside a block." },
+ Unterminated_template_literal: { code: 1160, category: ts.DiagnosticCategory.Error, key: "Unterminated template literal." },
+ Unterminated_regular_expression_literal: { code: 1161, category: ts.DiagnosticCategory.Error, key: "Unterminated regular expression literal." },
+ An_object_member_cannot_be_declared_optional: { code: 1162, category: ts.DiagnosticCategory.Error, key: "An object member cannot be declared optional." },
+ A_yield_expression_is_only_allowed_in_a_generator_body: { code: 1163, category: ts.DiagnosticCategory.Error, key: "A 'yield' expression is only allowed in a generator body." },
+ Computed_property_names_are_not_allowed_in_enums: { code: 1164, category: ts.DiagnosticCategory.Error, key: "Computed property names are not allowed in enums." },
+ A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol: { code: 1165, category: ts.DiagnosticCategory.Error, key: "A computed property name in an ambient context must directly refer to a built-in symbol." },
+ A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol: { code: 1166, category: ts.DiagnosticCategory.Error, key: "A computed property name in a class property declaration must directly refer to a built-in symbol." },
+ A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol: { code: 1168, category: ts.DiagnosticCategory.Error, key: "A computed property name in a method overload must directly refer to a built-in symbol." },
+ A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol: { code: 1169, category: ts.DiagnosticCategory.Error, key: "A computed property name in an interface must directly refer to a built-in symbol." },
+ A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol: { code: 1170, category: ts.DiagnosticCategory.Error, key: "A computed property name in a type literal must directly refer to a built-in symbol." },
+ A_comma_expression_is_not_allowed_in_a_computed_property_name: { code: 1171, category: ts.DiagnosticCategory.Error, key: "A comma expression is not allowed in a computed property name." },
+ extends_clause_already_seen: { code: 1172, category: ts.DiagnosticCategory.Error, key: "'extends' clause already seen." },
+ extends_clause_must_precede_implements_clause: { code: 1173, category: ts.DiagnosticCategory.Error, key: "'extends' clause must precede 'implements' clause." },
+ Classes_can_only_extend_a_single_class: { code: 1174, category: ts.DiagnosticCategory.Error, key: "Classes can only extend a single class." },
+ implements_clause_already_seen: { code: 1175, category: ts.DiagnosticCategory.Error, key: "'implements' clause already seen." },
+ Interface_declaration_cannot_have_implements_clause: { code: 1176, category: ts.DiagnosticCategory.Error, key: "Interface declaration cannot have 'implements' clause." },
+ Binary_digit_expected: { code: 1177, category: ts.DiagnosticCategory.Error, key: "Binary digit expected." },
+ Octal_digit_expected: { code: 1178, category: ts.DiagnosticCategory.Error, key: "Octal digit expected." },
+ Unexpected_token_expected: { code: 1179, category: ts.DiagnosticCategory.Error, key: "Unexpected token. '{' expected." },
+ Property_destructuring_pattern_expected: { code: 1180, category: ts.DiagnosticCategory.Error, key: "Property destructuring pattern expected." },
+ Array_element_destructuring_pattern_expected: { code: 1181, category: ts.DiagnosticCategory.Error, key: "Array element destructuring pattern expected." },
+ A_destructuring_declaration_must_have_an_initializer: { code: 1182, category: ts.DiagnosticCategory.Error, key: "A destructuring declaration must have an initializer." },
+ An_implementation_cannot_be_declared_in_ambient_contexts: { code: 1183, category: ts.DiagnosticCategory.Error, key: "An implementation cannot be declared in ambient contexts." },
+ Modifiers_cannot_appear_here: { code: 1184, category: ts.DiagnosticCategory.Error, key: "Modifiers cannot appear here." },
+ Merge_conflict_marker_encountered: { code: 1185, category: ts.DiagnosticCategory.Error, key: "Merge conflict marker encountered." },
+ A_rest_element_cannot_have_an_initializer: { code: 1186, category: ts.DiagnosticCategory.Error, key: "A rest element cannot have an initializer." },
+ A_parameter_property_may_not_be_a_binding_pattern: { code: 1187, category: ts.DiagnosticCategory.Error, key: "A parameter property may not be a binding pattern." },
+ Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement: { code: 1188, category: ts.DiagnosticCategory.Error, key: "Only a single variable declaration is allowed in a 'for...of' statement." },
+ The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer: { code: 1189, category: ts.DiagnosticCategory.Error, key: "The variable declaration of a 'for...in' statement cannot have an initializer." },
+ The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer: { code: 1190, category: ts.DiagnosticCategory.Error, key: "The variable declaration of a 'for...of' statement cannot have an initializer." },
+ An_import_declaration_cannot_have_modifiers: { code: 1191, category: ts.DiagnosticCategory.Error, key: "An import declaration cannot have modifiers." },
+ Module_0_has_no_default_export: { code: 1192, category: ts.DiagnosticCategory.Error, key: "Module '{0}' has no default export." },
+ An_export_declaration_cannot_have_modifiers: { code: 1193, category: ts.DiagnosticCategory.Error, key: "An export declaration cannot have modifiers." },
+ Export_declarations_are_not_permitted_in_a_namespace: { code: 1194, category: ts.DiagnosticCategory.Error, key: "Export declarations are not permitted in a namespace." },
+ Catch_clause_variable_name_must_be_an_identifier: { code: 1195, category: ts.DiagnosticCategory.Error, key: "Catch clause variable name must be an identifier." },
+ Catch_clause_variable_cannot_have_a_type_annotation: { code: 1196, category: ts.DiagnosticCategory.Error, key: "Catch clause variable cannot have a type annotation." },
+ Catch_clause_variable_cannot_have_an_initializer: { code: 1197, category: ts.DiagnosticCategory.Error, key: "Catch clause variable cannot have an initializer." },
+ An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive: { code: 1198, category: ts.DiagnosticCategory.Error, key: "An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive." },
+ Unterminated_Unicode_escape_sequence: { code: 1199, category: ts.DiagnosticCategory.Error, key: "Unterminated Unicode escape sequence." },
+ Line_terminator_not_permitted_before_arrow: { code: 1200, category: ts.DiagnosticCategory.Error, key: "Line terminator not permitted before arrow." },
+ Import_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead: { code: 1202, category: ts.DiagnosticCategory.Error, key: "Import assignment cannot be used when targeting ECMAScript 6 modules. Consider using 'import * as ns from \"mod\"', 'import {a} from \"mod\"', 'import d from \"mod\"', or another module format instead." },
+ Export_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_export_default_or_another_module_format_instead: { code: 1203, category: ts.DiagnosticCategory.Error, key: "Export assignment cannot be used when targeting ECMAScript 6 modules. Consider using 'export default' or another module format instead." },
+ Cannot_compile_modules_into_es6_when_targeting_ES5_or_lower: { code: 1204, category: ts.DiagnosticCategory.Error, key: "Cannot compile modules into 'es6' when targeting 'ES5' or lower." },
+ Decorators_are_not_valid_here: { code: 1206, category: ts.DiagnosticCategory.Error, key: "Decorators are not valid here." },
+ Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name: { code: 1207, category: ts.DiagnosticCategory.Error, key: "Decorators cannot be applied to multiple get/set accessors of the same name." },
+ Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided: { code: 1208, category: ts.DiagnosticCategory.Error, key: "Cannot compile namespaces when the '--isolatedModules' flag is provided." },
+ Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided: { code: 1209, category: ts.DiagnosticCategory.Error, key: "Ambient const enums are not allowed when the '--isolatedModules' flag is provided." },
+ Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode: { code: 1210, category: ts.DiagnosticCategory.Error, key: "Invalid use of '{0}'. Class definitions are automatically in strict mode." },
+ A_class_declaration_without_the_default_modifier_must_have_a_name: { code: 1211, category: ts.DiagnosticCategory.Error, key: "A class declaration without the 'default' modifier must have a name" },
+ Identifier_expected_0_is_a_reserved_word_in_strict_mode: { code: 1212, category: ts.DiagnosticCategory.Error, key: "Identifier expected. '{0}' is a reserved word in strict mode" },
+ Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode: { code: 1213, category: ts.DiagnosticCategory.Error, key: "Identifier expected. '{0}' is a reserved word in strict mode. Class definitions are automatically in strict mode." },
+ Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode: { code: 1214, category: ts.DiagnosticCategory.Error, key: "Identifier expected. '{0}' is a reserved word in strict mode. Modules are automatically in strict mode." },
+ Invalid_use_of_0_Modules_are_automatically_in_strict_mode: { code: 1215, category: ts.DiagnosticCategory.Error, key: "Invalid use of '{0}'. Modules are automatically in strict mode." },
+ Export_assignment_is_not_supported_when_module_flag_is_system: { code: 1218, category: ts.DiagnosticCategory.Error, key: "Export assignment is not supported when '--module' flag is 'system'." },
+ Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Specify_experimentalDecorators_to_remove_this_warning: { code: 1219, category: ts.DiagnosticCategory.Error, key: "Experimental support for decorators is a feature that is subject to change in a future release. Specify '--experimentalDecorators' to remove this warning." },
+ Generators_are_only_available_when_targeting_ECMAScript_6_or_higher: { code: 1220, category: ts.DiagnosticCategory.Error, key: "Generators are only available when targeting ECMAScript 6 or higher." },
+ Generators_are_not_allowed_in_an_ambient_context: { code: 1221, category: ts.DiagnosticCategory.Error, key: "Generators are not allowed in an ambient context." },
+ An_overload_signature_cannot_be_declared_as_a_generator: { code: 1222, category: ts.DiagnosticCategory.Error, key: "An overload signature cannot be declared as a generator." },
+ _0_tag_already_specified: { code: 1223, category: ts.DiagnosticCategory.Error, key: "'{0}' tag already specified." },
+ Signature_0_must_have_a_type_predicate: { code: 1224, category: ts.DiagnosticCategory.Error, key: "Signature '{0}' must have a type predicate." },
+ Cannot_find_parameter_0: { code: 1225, category: ts.DiagnosticCategory.Error, key: "Cannot find parameter '{0}'." },
+ Type_predicate_0_is_not_assignable_to_1: { code: 1226, category: ts.DiagnosticCategory.Error, key: "Type predicate '{0}' is not assignable to '{1}'." },
+ Parameter_0_is_not_in_the_same_position_as_parameter_1: { code: 1227, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' is not in the same position as parameter '{1}'." },
+ A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods: { code: 1228, category: ts.DiagnosticCategory.Error, key: "A type predicate is only allowed in return type position for functions and methods." },
+ A_type_predicate_cannot_reference_a_rest_parameter: { code: 1229, category: ts.DiagnosticCategory.Error, key: "A type predicate cannot reference a rest parameter." },
+ A_type_predicate_cannot_reference_element_0_in_a_binding_pattern: { code: 1230, category: ts.DiagnosticCategory.Error, key: "A type predicate cannot reference element '{0}' in a binding pattern." },
+ An_export_assignment_can_only_be_used_in_a_module: { code: 1231, category: ts.DiagnosticCategory.Error, key: "An export assignment can only be used in a module." },
+ An_import_declaration_can_only_be_used_in_a_namespace_or_module: { code: 1232, category: ts.DiagnosticCategory.Error, key: "An import declaration can only be used in a namespace or module." },
+ An_export_declaration_can_only_be_used_in_a_module: { code: 1233, category: ts.DiagnosticCategory.Error, key: "An export declaration can only be used in a module." },
+ An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file: { code: 1234, category: ts.DiagnosticCategory.Error, key: "An ambient module declaration is only allowed at the top level in a file." },
+ A_namespace_declaration_is_only_allowed_in_a_namespace_or_module: { code: 1235, category: ts.DiagnosticCategory.Error, key: "A namespace declaration is only allowed in a namespace or module." },
+ The_return_type_of_a_property_decorator_function_must_be_either_void_or_any: { code: 1236, category: ts.DiagnosticCategory.Error, key: "The return type of a property decorator function must be either 'void' or 'any'." },
+ The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any: { code: 1237, category: ts.DiagnosticCategory.Error, key: "The return type of a parameter decorator function must be either 'void' or 'any'." },
+ Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression: { code: 1238, category: ts.DiagnosticCategory.Error, key: "Unable to resolve signature of class decorator when called as an expression." },
+ Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression: { code: 1239, category: ts.DiagnosticCategory.Error, key: "Unable to resolve signature of parameter decorator when called as an expression." },
+ Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression: { code: 1240, category: ts.DiagnosticCategory.Error, key: "Unable to resolve signature of property decorator when called as an expression." },
+ Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression: { code: 1241, category: ts.DiagnosticCategory.Error, key: "Unable to resolve signature of method decorator when called as an expression." },
+ abstract_modifier_can_only_appear_on_a_class_or_method_declaration: { code: 1242, category: ts.DiagnosticCategory.Error, key: "'abstract' modifier can only appear on a class or method declaration." },
+ _0_modifier_cannot_be_used_with_1_modifier: { code: 1243, category: ts.DiagnosticCategory.Error, key: "'{0}' modifier cannot be used with '{1}' modifier." },
+ Abstract_methods_can_only_appear_within_an_abstract_class: { code: 1244, category: ts.DiagnosticCategory.Error, key: "Abstract methods can only appear within an abstract class." },
+ Method_0_cannot_have_an_implementation_because_it_is_marked_abstract: { code: 1245, category: ts.DiagnosticCategory.Error, key: "Method '{0}' cannot have an implementation because it is marked abstract." },
+ with_statements_are_not_allowed_in_an_async_function_block: { code: 1300, category: ts.DiagnosticCategory.Error, key: "'with' statements are not allowed in an async function block." },
+ await_expression_is_only_allowed_within_an_async_function: { code: 1308, category: ts.DiagnosticCategory.Error, key: "'await' expression is only allowed within an async function." },
+ Async_functions_are_only_available_when_targeting_ECMAScript_6_and_higher: { code: 1311, category: ts.DiagnosticCategory.Error, key: "Async functions are only available when targeting ECMAScript 6 and higher." },
+ can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment: { code: 1312, category: ts.DiagnosticCategory.Error, key: "'=' can only be used in an object literal property inside a destructuring assignment." },
+ Duplicate_identifier_0: { code: 2300, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier '{0}'." },
+ Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: { code: 2301, category: ts.DiagnosticCategory.Error, key: "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor." },
+ Static_members_cannot_reference_class_type_parameters: { code: 2302, category: ts.DiagnosticCategory.Error, key: "Static members cannot reference class type parameters." },
+ Circular_definition_of_import_alias_0: { code: 2303, category: ts.DiagnosticCategory.Error, key: "Circular definition of import alias '{0}'." },
+ Cannot_find_name_0: { code: 2304, category: ts.DiagnosticCategory.Error, key: "Cannot find name '{0}'." },
+ Module_0_has_no_exported_member_1: { code: 2305, category: ts.DiagnosticCategory.Error, key: "Module '{0}' has no exported member '{1}'." },
+ File_0_is_not_a_module: { code: 2306, category: ts.DiagnosticCategory.Error, key: "File '{0}' is not a module." },
+ Cannot_find_module_0: { code: 2307, category: ts.DiagnosticCategory.Error, key: "Cannot find module '{0}'." },
+ An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements: { code: 2309, category: ts.DiagnosticCategory.Error, key: "An export assignment cannot be used in a module with other exported elements." },
+ Type_0_recursively_references_itself_as_a_base_type: { code: 2310, category: ts.DiagnosticCategory.Error, key: "Type '{0}' recursively references itself as a base type." },
+ A_class_may_only_extend_another_class: { code: 2311, category: ts.DiagnosticCategory.Error, key: "A class may only extend another class." },
+ An_interface_may_only_extend_a_class_or_another_interface: { code: 2312, category: ts.DiagnosticCategory.Error, key: "An interface may only extend a class or another interface." },
+ Constraint_of_a_type_parameter_cannot_reference_any_type_parameter_from_the_same_type_parameter_list: { code: 2313, category: ts.DiagnosticCategory.Error, key: "Constraint of a type parameter cannot reference any type parameter from the same type parameter list." },
+ Generic_type_0_requires_1_type_argument_s: { code: 2314, category: ts.DiagnosticCategory.Error, key: "Generic type '{0}' requires {1} type argument(s)." },
+ Type_0_is_not_generic: { code: 2315, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not generic." },
+ Global_type_0_must_be_a_class_or_interface_type: { code: 2316, category: ts.DiagnosticCategory.Error, key: "Global type '{0}' must be a class or interface type." },
+ Global_type_0_must_have_1_type_parameter_s: { code: 2317, category: ts.DiagnosticCategory.Error, key: "Global type '{0}' must have {1} type parameter(s)." },
+ Cannot_find_global_type_0: { code: 2318, category: ts.DiagnosticCategory.Error, key: "Cannot find global type '{0}'." },
+ Named_property_0_of_types_1_and_2_are_not_identical: { code: 2319, category: ts.DiagnosticCategory.Error, key: "Named property '{0}' of types '{1}' and '{2}' are not identical." },
+ Interface_0_cannot_simultaneously_extend_types_1_and_2: { code: 2320, category: ts.DiagnosticCategory.Error, key: "Interface '{0}' cannot simultaneously extend types '{1}' and '{2}'." },
+ Excessive_stack_depth_comparing_types_0_and_1: { code: 2321, category: ts.DiagnosticCategory.Error, key: "Excessive stack depth comparing types '{0}' and '{1}'." },
+ Type_0_is_not_assignable_to_type_1: { code: 2322, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not assignable to type '{1}'." },
+ Property_0_is_missing_in_type_1: { code: 2324, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is missing in type '{1}'." },
+ Property_0_is_private_in_type_1_but_not_in_type_2: { code: 2325, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is private in type '{1}' but not in type '{2}'." },
+ Types_of_property_0_are_incompatible: { code: 2326, category: ts.DiagnosticCategory.Error, key: "Types of property '{0}' are incompatible." },
+ Property_0_is_optional_in_type_1_but_required_in_type_2: { code: 2327, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is optional in type '{1}' but required in type '{2}'." },
+ Types_of_parameters_0_and_1_are_incompatible: { code: 2328, category: ts.DiagnosticCategory.Error, key: "Types of parameters '{0}' and '{1}' are incompatible." },
+ Index_signature_is_missing_in_type_0: { code: 2329, category: ts.DiagnosticCategory.Error, key: "Index signature is missing in type '{0}'." },
+ Index_signatures_are_incompatible: { code: 2330, category: ts.DiagnosticCategory.Error, key: "Index signatures are incompatible." },
+ this_cannot_be_referenced_in_a_module_or_namespace_body: { code: 2331, category: ts.DiagnosticCategory.Error, key: "'this' cannot be referenced in a module or namespace body." },
+ this_cannot_be_referenced_in_current_location: { code: 2332, category: ts.DiagnosticCategory.Error, key: "'this' cannot be referenced in current location." },
+ this_cannot_be_referenced_in_constructor_arguments: { code: 2333, category: ts.DiagnosticCategory.Error, key: "'this' cannot be referenced in constructor arguments." },
+ this_cannot_be_referenced_in_a_static_property_initializer: { code: 2334, category: ts.DiagnosticCategory.Error, key: "'this' cannot be referenced in a static property initializer." },
+ super_can_only_be_referenced_in_a_derived_class: { code: 2335, category: ts.DiagnosticCategory.Error, key: "'super' can only be referenced in a derived class." },
+ super_cannot_be_referenced_in_constructor_arguments: { code: 2336, category: ts.DiagnosticCategory.Error, key: "'super' cannot be referenced in constructor arguments." },
+ Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors: { code: 2337, category: ts.DiagnosticCategory.Error, key: "Super calls are not permitted outside constructors or in nested functions inside constructors." },
+ super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class: { code: 2338, category: ts.DiagnosticCategory.Error, key: "'super' property access is permitted only in a constructor, member function, or member accessor of a derived class." },
+ Property_0_does_not_exist_on_type_1: { code: 2339, category: ts.DiagnosticCategory.Error, key: "Property '{0}' does not exist on type '{1}'." },
+ Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword: { code: 2340, category: ts.DiagnosticCategory.Error, key: "Only public and protected methods of the base class are accessible via the 'super' keyword." },
+ Property_0_is_private_and_only_accessible_within_class_1: { code: 2341, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is private and only accessible within class '{1}'." },
+ An_index_expression_argument_must_be_of_type_string_number_symbol_or_any: { code: 2342, category: ts.DiagnosticCategory.Error, key: "An index expression argument must be of type 'string', 'number', 'symbol', or 'any'." },
+ Type_0_does_not_satisfy_the_constraint_1: { code: 2344, category: ts.DiagnosticCategory.Error, key: "Type '{0}' does not satisfy the constraint '{1}'." },
+ Argument_of_type_0_is_not_assignable_to_parameter_of_type_1: { code: 2345, category: ts.DiagnosticCategory.Error, key: "Argument of type '{0}' is not assignable to parameter of type '{1}'." },
+ Supplied_parameters_do_not_match_any_signature_of_call_target: { code: 2346, category: ts.DiagnosticCategory.Error, key: "Supplied parameters do not match any signature of call target." },
+ Untyped_function_calls_may_not_accept_type_arguments: { code: 2347, category: ts.DiagnosticCategory.Error, key: "Untyped function calls may not accept type arguments." },
+ Value_of_type_0_is_not_callable_Did_you_mean_to_include_new: { code: 2348, category: ts.DiagnosticCategory.Error, key: "Value of type '{0}' is not callable. Did you mean to include 'new'?" },
+ Cannot_invoke_an_expression_whose_type_lacks_a_call_signature: { code: 2349, category: ts.DiagnosticCategory.Error, key: "Cannot invoke an expression whose type lacks a call signature." },
+ Only_a_void_function_can_be_called_with_the_new_keyword: { code: 2350, category: ts.DiagnosticCategory.Error, key: "Only a void function can be called with the 'new' keyword." },
+ Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature: { code: 2351, category: ts.DiagnosticCategory.Error, key: "Cannot use 'new' with an expression whose type lacks a call or construct signature." },
+ Neither_type_0_nor_type_1_is_assignable_to_the_other: { code: 2352, category: ts.DiagnosticCategory.Error, key: "Neither type '{0}' nor type '{1}' is assignable to the other." },
+ Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1: { code: 2353, category: ts.DiagnosticCategory.Error, key: "Object literal may only specify known properties, and '{0}' does not exist in type '{1}'." },
+ No_best_common_type_exists_among_return_expressions: { code: 2354, category: ts.DiagnosticCategory.Error, key: "No best common type exists among return expressions." },
+ A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value_or_consist_of_a_single_throw_statement: { code: 2355, category: ts.DiagnosticCategory.Error, key: "A function whose declared type is neither 'void' nor 'any' must return a value or consist of a single 'throw' statement." },
+ An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type: { code: 2356, category: ts.DiagnosticCategory.Error, key: "An arithmetic operand must be of type 'any', 'number' or an enum type." },
+ The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_property_or_indexer: { code: 2357, category: ts.DiagnosticCategory.Error, key: "The operand of an increment or decrement operator must be a variable, property or indexer." },
+ The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2358, category: ts.DiagnosticCategory.Error, key: "The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter." },
+ The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type: { code: 2359, category: ts.DiagnosticCategory.Error, key: "The right-hand side of an 'instanceof' expression must be of type 'any' or of a type assignable to the 'Function' interface type." },
+ The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol: { code: 2360, category: ts.DiagnosticCategory.Error, key: "The left-hand side of an 'in' expression must be of type 'any', 'string', 'number', or 'symbol'." },
+ The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2361, category: ts.DiagnosticCategory.Error, key: "The right-hand side of an 'in' expression must be of type 'any', an object type or a type parameter" },
+ The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2362, category: ts.DiagnosticCategory.Error, key: "The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
+ The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2363, category: ts.DiagnosticCategory.Error, key: "The right-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
+ Invalid_left_hand_side_of_assignment_expression: { code: 2364, category: ts.DiagnosticCategory.Error, key: "Invalid left-hand side of assignment expression." },
+ Operator_0_cannot_be_applied_to_types_1_and_2: { code: 2365, category: ts.DiagnosticCategory.Error, key: "Operator '{0}' cannot be applied to types '{1}' and '{2}'." },
+ Type_parameter_name_cannot_be_0: { code: 2368, category: ts.DiagnosticCategory.Error, key: "Type parameter name cannot be '{0}'" },
+ A_parameter_property_is_only_allowed_in_a_constructor_implementation: { code: 2369, category: ts.DiagnosticCategory.Error, key: "A parameter property is only allowed in a constructor implementation." },
+ A_rest_parameter_must_be_of_an_array_type: { code: 2370, category: ts.DiagnosticCategory.Error, key: "A rest parameter must be of an array type." },
+ A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation: { code: 2371, category: ts.DiagnosticCategory.Error, key: "A parameter initializer is only allowed in a function or constructor implementation." },
+ Parameter_0_cannot_be_referenced_in_its_initializer: { code: 2372, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' cannot be referenced in its initializer." },
+ Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it: { code: 2373, category: ts.DiagnosticCategory.Error, key: "Initializer of parameter '{0}' cannot reference identifier '{1}' declared after it." },
+ Duplicate_string_index_signature: { code: 2374, category: ts.DiagnosticCategory.Error, key: "Duplicate string index signature." },
+ Duplicate_number_index_signature: { code: 2375, category: ts.DiagnosticCategory.Error, key: "Duplicate number index signature." },
+ A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_or_has_parameter_properties: { code: 2376, category: ts.DiagnosticCategory.Error, key: "A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties." },
+ Constructors_for_derived_classes_must_contain_a_super_call: { code: 2377, category: ts.DiagnosticCategory.Error, key: "Constructors for derived classes must contain a 'super' call." },
+ A_get_accessor_must_return_a_value_or_consist_of_a_single_throw_statement: { code: 2378, category: ts.DiagnosticCategory.Error, key: "A 'get' accessor must return a value or consist of a single 'throw' statement." },
+ Getter_and_setter_accessors_do_not_agree_in_visibility: { code: 2379, category: ts.DiagnosticCategory.Error, key: "Getter and setter accessors do not agree in visibility." },
+ get_and_set_accessor_must_have_the_same_type: { code: 2380, category: ts.DiagnosticCategory.Error, key: "'get' and 'set' accessor must have the same type." },
+ A_signature_with_an_implementation_cannot_use_a_string_literal_type: { code: 2381, category: ts.DiagnosticCategory.Error, key: "A signature with an implementation cannot use a string literal type." },
+ Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature: { code: 2382, category: ts.DiagnosticCategory.Error, key: "Specialized overload signature is not assignable to any non-specialized signature." },
+ Overload_signatures_must_all_be_exported_or_not_exported: { code: 2383, category: ts.DiagnosticCategory.Error, key: "Overload signatures must all be exported or not exported." },
+ Overload_signatures_must_all_be_ambient_or_non_ambient: { code: 2384, category: ts.DiagnosticCategory.Error, key: "Overload signatures must all be ambient or non-ambient." },
+ Overload_signatures_must_all_be_public_private_or_protected: { code: 2385, category: ts.DiagnosticCategory.Error, key: "Overload signatures must all be public, private or protected." },
+ Overload_signatures_must_all_be_optional_or_required: { code: 2386, category: ts.DiagnosticCategory.Error, key: "Overload signatures must all be optional or required." },
+ Function_overload_must_be_static: { code: 2387, category: ts.DiagnosticCategory.Error, key: "Function overload must be static." },
+ Function_overload_must_not_be_static: { code: 2388, category: ts.DiagnosticCategory.Error, key: "Function overload must not be static." },
+ Function_implementation_name_must_be_0: { code: 2389, category: ts.DiagnosticCategory.Error, key: "Function implementation name must be '{0}'." },
+ Constructor_implementation_is_missing: { code: 2390, category: ts.DiagnosticCategory.Error, key: "Constructor implementation is missing." },
+ Function_implementation_is_missing_or_not_immediately_following_the_declaration: { code: 2391, category: ts.DiagnosticCategory.Error, key: "Function implementation is missing or not immediately following the declaration." },
+ Multiple_constructor_implementations_are_not_allowed: { code: 2392, category: ts.DiagnosticCategory.Error, key: "Multiple constructor implementations are not allowed." },
+ Duplicate_function_implementation: { code: 2393, category: ts.DiagnosticCategory.Error, key: "Duplicate function implementation." },
+ Overload_signature_is_not_compatible_with_function_implementation: { code: 2394, category: ts.DiagnosticCategory.Error, key: "Overload signature is not compatible with function implementation." },
+ Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local: { code: 2395, category: ts.DiagnosticCategory.Error, key: "Individual declarations in merged declaration '{0}' must be all exported or all local." },
+ Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters: { code: 2396, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters." },
+ Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference: { code: 2399, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier '_this'. Compiler uses variable declaration '_this' to capture 'this' reference." },
+ Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference: { code: 2400, category: ts.DiagnosticCategory.Error, key: "Expression resolves to variable declaration '_this' that compiler uses to capture 'this' reference." },
+ Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference: { code: 2401, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference." },
+ Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference: { code: 2402, category: ts.DiagnosticCategory.Error, key: "Expression resolves to '_super' that compiler uses to capture base class reference." },
+ Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2: { code: 2403, category: ts.DiagnosticCategory.Error, key: "Subsequent variable declarations must have the same type. Variable '{0}' must be of type '{1}', but here has type '{2}'." },
+ The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation: { code: 2404, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...in' statement cannot use a type annotation." },
+ The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any: { code: 2405, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...in' statement must be of type 'string' or 'any'." },
+ Invalid_left_hand_side_in_for_in_statement: { code: 2406, category: ts.DiagnosticCategory.Error, key: "Invalid left-hand side in 'for...in' statement." },
+ The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2407, category: ts.DiagnosticCategory.Error, key: "The right-hand side of a 'for...in' statement must be of type 'any', an object type or a type parameter." },
+ Setters_cannot_return_a_value: { code: 2408, category: ts.DiagnosticCategory.Error, key: "Setters cannot return a value." },
+ Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class: { code: 2409, category: ts.DiagnosticCategory.Error, key: "Return type of constructor signature must be assignable to the instance type of the class" },
+ All_symbols_within_a_with_block_will_be_resolved_to_any: { code: 2410, category: ts.DiagnosticCategory.Error, key: "All symbols within a 'with' block will be resolved to 'any'." },
+ Property_0_of_type_1_is_not_assignable_to_string_index_type_2: { code: 2411, category: ts.DiagnosticCategory.Error, key: "Property '{0}' of type '{1}' is not assignable to string index type '{2}'." },
+ Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2: { code: 2412, category: ts.DiagnosticCategory.Error, key: "Property '{0}' of type '{1}' is not assignable to numeric index type '{2}'." },
+ Numeric_index_type_0_is_not_assignable_to_string_index_type_1: { code: 2413, category: ts.DiagnosticCategory.Error, key: "Numeric index type '{0}' is not assignable to string index type '{1}'." },
+ Class_name_cannot_be_0: { code: 2414, category: ts.DiagnosticCategory.Error, key: "Class name cannot be '{0}'" },
+ Class_0_incorrectly_extends_base_class_1: { code: 2415, category: ts.DiagnosticCategory.Error, key: "Class '{0}' incorrectly extends base class '{1}'." },
+ Class_static_side_0_incorrectly_extends_base_class_static_side_1: { code: 2417, category: ts.DiagnosticCategory.Error, key: "Class static side '{0}' incorrectly extends base class static side '{1}'." },
+ Type_name_0_in_extends_clause_does_not_reference_constructor_function_for_0: { code: 2419, category: ts.DiagnosticCategory.Error, key: "Type name '{0}' in extends clause does not reference constructor function for '{0}'." },
+ Class_0_incorrectly_implements_interface_1: { code: 2420, category: ts.DiagnosticCategory.Error, key: "Class '{0}' incorrectly implements interface '{1}'." },
+ A_class_may_only_implement_another_class_or_interface: { code: 2422, category: ts.DiagnosticCategory.Error, key: "A class may only implement another class or interface." },
+ Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor: { code: 2423, category: ts.DiagnosticCategory.Error, key: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member accessor." },
+ Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_property: { code: 2424, category: ts.DiagnosticCategory.Error, key: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member property." },
+ Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2425, category: ts.DiagnosticCategory.Error, key: "Class '{0}' defines instance member property '{1}', but extended class '{2}' defines it as instance member function." },
+ Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2426, category: ts.DiagnosticCategory.Error, key: "Class '{0}' defines instance member accessor '{1}', but extended class '{2}' defines it as instance member function." },
+ Interface_name_cannot_be_0: { code: 2427, category: ts.DiagnosticCategory.Error, key: "Interface name cannot be '{0}'" },
+ All_declarations_of_an_interface_must_have_identical_type_parameters: { code: 2428, category: ts.DiagnosticCategory.Error, key: "All declarations of an interface must have identical type parameters." },
+ Interface_0_incorrectly_extends_interface_1: { code: 2430, category: ts.DiagnosticCategory.Error, key: "Interface '{0}' incorrectly extends interface '{1}'." },
+ Enum_name_cannot_be_0: { code: 2431, category: ts.DiagnosticCategory.Error, key: "Enum name cannot be '{0}'" },
+ In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element: { code: 2432, category: ts.DiagnosticCategory.Error, key: "In an enum with multiple declarations, only one declaration can omit an initializer for its first enum element." },
+ A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged: { code: 2433, category: ts.DiagnosticCategory.Error, key: "A namespace declaration cannot be in a different file from a class or function with which it is merged" },
+ A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged: { code: 2434, category: ts.DiagnosticCategory.Error, key: "A namespace declaration cannot be located prior to a class or function with which it is merged" },
+ Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces: { code: 2435, category: ts.DiagnosticCategory.Error, key: "Ambient modules cannot be nested in other modules or namespaces." },
+ Ambient_module_declaration_cannot_specify_relative_module_name: { code: 2436, category: ts.DiagnosticCategory.Error, key: "Ambient module declaration cannot specify relative module name." },
+ Module_0_is_hidden_by_a_local_declaration_with_the_same_name: { code: 2437, category: ts.DiagnosticCategory.Error, key: "Module '{0}' is hidden by a local declaration with the same name" },
+ Import_name_cannot_be_0: { code: 2438, category: ts.DiagnosticCategory.Error, key: "Import name cannot be '{0}'" },
+ Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name: { code: 2439, category: ts.DiagnosticCategory.Error, key: "Import or export declaration in an ambient module declaration cannot reference module through relative module name." },
+ Import_declaration_conflicts_with_local_declaration_of_0: { code: 2440, category: ts.DiagnosticCategory.Error, key: "Import declaration conflicts with local declaration of '{0}'" },
+ Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module: { code: 2441, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module." },
+ Types_have_separate_declarations_of_a_private_property_0: { code: 2442, category: ts.DiagnosticCategory.Error, key: "Types have separate declarations of a private property '{0}'." },
+ Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2: { code: 2443, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is protected but type '{1}' is not a class derived from '{2}'." },
+ Property_0_is_protected_in_type_1_but_public_in_type_2: { code: 2444, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is protected in type '{1}' but public in type '{2}'." },
+ Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses: { code: 2445, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is protected and only accessible within class '{1}' and its subclasses." },
+ Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1: { code: 2446, category: ts.DiagnosticCategory.Error, key: "Property '{0}' is protected and only accessible through an instance of class '{1}'." },
+ The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead: { code: 2447, category: ts.DiagnosticCategory.Error, key: "The '{0}' operator is not allowed for boolean types. Consider using '{1}' instead." },
+ Block_scoped_variable_0_used_before_its_declaration: { code: 2448, category: ts.DiagnosticCategory.Error, key: "Block-scoped variable '{0}' used before its declaration." },
+ The_operand_of_an_increment_or_decrement_operator_cannot_be_a_constant: { code: 2449, category: ts.DiagnosticCategory.Error, key: "The operand of an increment or decrement operator cannot be a constant." },
+ Left_hand_side_of_assignment_expression_cannot_be_a_constant: { code: 2450, category: ts.DiagnosticCategory.Error, key: "Left-hand side of assignment expression cannot be a constant." },
+ Cannot_redeclare_block_scoped_variable_0: { code: 2451, category: ts.DiagnosticCategory.Error, key: "Cannot redeclare block-scoped variable '{0}'." },
+ An_enum_member_cannot_have_a_numeric_name: { code: 2452, category: ts.DiagnosticCategory.Error, key: "An enum member cannot have a numeric name." },
+ The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly: { code: 2453, category: ts.DiagnosticCategory.Error, key: "The type argument for type parameter '{0}' cannot be inferred from the usage. Consider specifying the type arguments explicitly." },
+ Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0: { code: 2455, category: ts.DiagnosticCategory.Error, key: "Type argument candidate '{1}' is not a valid type argument because it is not a supertype of candidate '{0}'." },
+ Type_alias_0_circularly_references_itself: { code: 2456, category: ts.DiagnosticCategory.Error, key: "Type alias '{0}' circularly references itself." },
+ Type_alias_name_cannot_be_0: { code: 2457, category: ts.DiagnosticCategory.Error, key: "Type alias name cannot be '{0}'" },
+ An_AMD_module_cannot_have_multiple_name_assignments: { code: 2458, category: ts.DiagnosticCategory.Error, key: "An AMD module cannot have multiple name assignments." },
+ Type_0_has_no_property_1_and_no_string_index_signature: { code: 2459, category: ts.DiagnosticCategory.Error, key: "Type '{0}' has no property '{1}' and no string index signature." },
+ Type_0_has_no_property_1: { code: 2460, category: ts.DiagnosticCategory.Error, key: "Type '{0}' has no property '{1}'." },
+ Type_0_is_not_an_array_type: { code: 2461, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not an array type." },
+ A_rest_element_must_be_last_in_an_array_destructuring_pattern: { code: 2462, category: ts.DiagnosticCategory.Error, key: "A rest element must be last in an array destructuring pattern" },
+ A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature: { code: 2463, category: ts.DiagnosticCategory.Error, key: "A binding pattern parameter cannot be optional in an implementation signature." },
+ A_computed_property_name_must_be_of_type_string_number_symbol_or_any: { code: 2464, category: ts.DiagnosticCategory.Error, key: "A computed property name must be of type 'string', 'number', 'symbol', or 'any'." },
+ this_cannot_be_referenced_in_a_computed_property_name: { code: 2465, category: ts.DiagnosticCategory.Error, key: "'this' cannot be referenced in a computed property name." },
+ super_cannot_be_referenced_in_a_computed_property_name: { code: 2466, category: ts.DiagnosticCategory.Error, key: "'super' cannot be referenced in a computed property name." },
+ A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type: { code: 2467, category: ts.DiagnosticCategory.Error, key: "A computed property name cannot reference a type parameter from its containing type." },
+ Cannot_find_global_value_0: { code: 2468, category: ts.DiagnosticCategory.Error, key: "Cannot find global value '{0}'." },
+ The_0_operator_cannot_be_applied_to_type_symbol: { code: 2469, category: ts.DiagnosticCategory.Error, key: "The '{0}' operator cannot be applied to type 'symbol'." },
+ Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object: { code: 2470, category: ts.DiagnosticCategory.Error, key: "'Symbol' reference does not refer to the global Symbol constructor object." },
+ A_computed_property_name_of_the_form_0_must_be_of_type_symbol: { code: 2471, category: ts.DiagnosticCategory.Error, key: "A computed property name of the form '{0}' must be of type 'symbol'." },
+ Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher: { code: 2472, category: ts.DiagnosticCategory.Error, key: "Spread operator in 'new' expressions is only available when targeting ECMAScript 5 and higher." },
+ Enum_declarations_must_all_be_const_or_non_const: { code: 2473, category: ts.DiagnosticCategory.Error, key: "Enum declarations must all be const or non-const." },
+ In_const_enum_declarations_member_initializer_must_be_constant_expression: { code: 2474, category: ts.DiagnosticCategory.Error, key: "In 'const' enum declarations member initializer must be constant expression." },
+ const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment: { code: 2475, category: ts.DiagnosticCategory.Error, key: "'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment." },
+ A_const_enum_member_can_only_be_accessed_using_a_string_literal: { code: 2476, category: ts.DiagnosticCategory.Error, key: "A const enum member can only be accessed using a string literal." },
+ const_enum_member_initializer_was_evaluated_to_a_non_finite_value: { code: 2477, category: ts.DiagnosticCategory.Error, key: "'const' enum member initializer was evaluated to a non-finite value." },
+ const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN: { code: 2478, category: ts.DiagnosticCategory.Error, key: "'const' enum member initializer was evaluated to disallowed value 'NaN'." },
+ Property_0_does_not_exist_on_const_enum_1: { code: 2479, category: ts.DiagnosticCategory.Error, key: "Property '{0}' does not exist on 'const' enum '{1}'." },
+ let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations: { code: 2480, category: ts.DiagnosticCategory.Error, key: "'let' is not allowed to be used as a name in 'let' or 'const' declarations." },
+ Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1: { code: 2481, category: ts.DiagnosticCategory.Error, key: "Cannot initialize outer scoped variable '{0}' in the same scope as block scoped declaration '{1}'." },
+ The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation: { code: 2483, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...of' statement cannot use a type annotation." },
+ Export_declaration_conflicts_with_exported_declaration_of_0: { code: 2484, category: ts.DiagnosticCategory.Error, key: "Export declaration conflicts with exported declaration of '{0}'" },
+ The_left_hand_side_of_a_for_of_statement_cannot_be_a_previously_defined_constant: { code: 2485, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...of' statement cannot be a previously defined constant." },
+ The_left_hand_side_of_a_for_in_statement_cannot_be_a_previously_defined_constant: { code: 2486, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...in' statement cannot be a previously defined constant." },
+ Invalid_left_hand_side_in_for_of_statement: { code: 2487, category: ts.DiagnosticCategory.Error, key: "Invalid left-hand side in 'for...of' statement." },
+ Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator: { code: 2488, category: ts.DiagnosticCategory.Error, key: "Type must have a '[Symbol.iterator]()' method that returns an iterator." },
+ An_iterator_must_have_a_next_method: { code: 2489, category: ts.DiagnosticCategory.Error, key: "An iterator must have a 'next()' method." },
+ The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property: { code: 2490, category: ts.DiagnosticCategory.Error, key: "The type returned by the 'next()' method of an iterator must have a 'value' property." },
+ The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern: { code: 2491, category: ts.DiagnosticCategory.Error, key: "The left-hand side of a 'for...in' statement cannot be a destructuring pattern." },
+ Cannot_redeclare_identifier_0_in_catch_clause: { code: 2492, category: ts.DiagnosticCategory.Error, key: "Cannot redeclare identifier '{0}' in catch clause" },
+ Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2: { code: 2493, category: ts.DiagnosticCategory.Error, key: "Tuple type '{0}' with length '{1}' cannot be assigned to tuple with length '{2}'." },
+ Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher: { code: 2494, category: ts.DiagnosticCategory.Error, key: "Using a string in a 'for...of' statement is only supported in ECMAScript 5 and higher." },
+ Type_0_is_not_an_array_type_or_a_string_type: { code: 2495, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not an array type or a string type." },
+ The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression: { code: 2496, category: ts.DiagnosticCategory.Error, key: "The 'arguments' object cannot be referenced in an arrow function in ES3 and ES5. Consider using a standard function expression." },
+ Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct: { code: 2497, category: ts.DiagnosticCategory.Error, key: "Module '{0}' resolves to a non-module entity and cannot be imported using this construct." },
+ Module_0_uses_export_and_cannot_be_used_with_export_Asterisk: { code: 2498, category: ts.DiagnosticCategory.Error, key: "Module '{0}' uses 'export =' and cannot be used with 'export *'." },
+ An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2499, category: ts.DiagnosticCategory.Error, key: "An interface can only extend an identifier/qualified-name with optional type arguments." },
+ A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2500, category: ts.DiagnosticCategory.Error, key: "A class can only implement an identifier/qualified-name with optional type arguments." },
+ A_rest_element_cannot_contain_a_binding_pattern: { code: 2501, category: ts.DiagnosticCategory.Error, key: "A rest element cannot contain a binding pattern." },
+ _0_is_referenced_directly_or_indirectly_in_its_own_type_annotation: { code: 2502, category: ts.DiagnosticCategory.Error, key: "'{0}' is referenced directly or indirectly in its own type annotation." },
+ Cannot_find_namespace_0: { code: 2503, category: ts.DiagnosticCategory.Error, key: "Cannot find namespace '{0}'." },
+ No_best_common_type_exists_among_yield_expressions: { code: 2504, category: ts.DiagnosticCategory.Error, key: "No best common type exists among yield expressions." },
+ A_generator_cannot_have_a_void_type_annotation: { code: 2505, category: ts.DiagnosticCategory.Error, key: "A generator cannot have a 'void' type annotation." },
+ _0_is_referenced_directly_or_indirectly_in_its_own_base_expression: { code: 2506, category: ts.DiagnosticCategory.Error, key: "'{0}' is referenced directly or indirectly in its own base expression." },
+ Type_0_is_not_a_constructor_function_type: { code: 2507, category: ts.DiagnosticCategory.Error, key: "Type '{0}' is not a constructor function type." },
+ No_base_constructor_has_the_specified_number_of_type_arguments: { code: 2508, category: ts.DiagnosticCategory.Error, key: "No base constructor has the specified number of type arguments." },
+ Base_constructor_return_type_0_is_not_a_class_or_interface_type: { code: 2509, category: ts.DiagnosticCategory.Error, key: "Base constructor return type '{0}' is not a class or interface type." },
+ Base_constructors_must_all_have_the_same_return_type: { code: 2510, category: ts.DiagnosticCategory.Error, key: "Base constructors must all have the same return type." },
+ Cannot_create_an_instance_of_the_abstract_class_0: { code: 2511, category: ts.DiagnosticCategory.Error, key: "Cannot create an instance of the abstract class '{0}'." },
+ Overload_signatures_must_all_be_abstract_or_not_abstract: { code: 2512, category: ts.DiagnosticCategory.Error, key: "Overload signatures must all be abstract or not abstract." },
+ Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression: { code: 2513, category: ts.DiagnosticCategory.Error, key: "Abstract method '{0}' in class '{1}' cannot be accessed via super expression." },
+ Classes_containing_abstract_methods_must_be_marked_abstract: { code: 2514, category: ts.DiagnosticCategory.Error, key: "Classes containing abstract methods must be marked abstract." },
+ Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2: { code: 2515, category: ts.DiagnosticCategory.Error, key: "Non-abstract class '{0}' does not implement inherited abstract member '{1}' from class '{2}'." },
+ All_declarations_of_an_abstract_method_must_be_consecutive: { code: 2516, category: ts.DiagnosticCategory.Error, key: "All declarations of an abstract method must be consecutive." },
+ Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type: { code: 2517, category: ts.DiagnosticCategory.Error, key: "Cannot assign an abstract constructor type to a non-abstract constructor type." },
+ Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions: { code: 2520, category: ts.DiagnosticCategory.Error, key: "Duplicate identifier '{0}'. Compiler uses declaration '{1}' to support async functions." },
+ Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions: { code: 2521, category: ts.DiagnosticCategory.Error, key: "Expression resolves to variable declaration '{0}' that compiler uses to support async functions." },
+ The_arguments_object_cannot_be_referenced_in_an_async_arrow_function_Consider_using_a_standard_async_function_expression: { code: 2522, category: ts.DiagnosticCategory.Error, key: "The 'arguments' object cannot be referenced in an async arrow function. Consider using a standard async function expression." },
+ yield_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2523, category: ts.DiagnosticCategory.Error, key: "'yield' expressions cannot be used in a parameter initializer." },
+ await_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2524, category: ts.DiagnosticCategory.Error, key: "'await' expressions cannot be used in a parameter initializer." },
+ Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value: { code: 2525, category: ts.DiagnosticCategory.Error, key: "Initializer provides no value for this binding element and the binding element has no default value." },
+ A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface: { code: 2526, category: ts.DiagnosticCategory.Error, key: "A 'this' type is available only in a non-static member of a class or interface." },
+ The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary: { code: 2527, category: ts.DiagnosticCategory.Error, key: "The inferred type of '{0}' references an inaccessible 'this' type. A type annotation is necessary." },
+ A_module_cannot_have_multiple_default_exports: { code: 2528, category: ts.DiagnosticCategory.Error, key: "A module cannot have multiple default exports." },
+ JSX_element_attributes_type_0_must_be_an_object_type: { code: 2600, category: ts.DiagnosticCategory.Error, key: "JSX element attributes type '{0}' must be an object type." },
+ The_return_type_of_a_JSX_element_constructor_must_return_an_object_type: { code: 2601, category: ts.DiagnosticCategory.Error, key: "The return type of a JSX element constructor must return an object type." },
+ JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist: { code: 2602, category: ts.DiagnosticCategory.Error, key: "JSX element implicitly has type 'any' because the global type 'JSX.Element' does not exist." },
+ Property_0_in_type_1_is_not_assignable_to_type_2: { code: 2603, category: ts.DiagnosticCategory.Error, key: "Property '{0}' in type '{1}' is not assignable to type '{2}'" },
+ JSX_element_type_0_does_not_have_any_construct_or_call_signatures: { code: 2604, category: ts.DiagnosticCategory.Error, key: "JSX element type '{0}' does not have any construct or call signatures." },
+ JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements: { code: 2605, category: ts.DiagnosticCategory.Error, key: "JSX element type '{0}' is not a constructor function for JSX elements." },
+ Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property: { code: 2606, category: ts.DiagnosticCategory.Error, key: "Property '{0}' of JSX spread attribute is not assignable to target property." },
+ JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property: { code: 2607, category: ts.DiagnosticCategory.Error, key: "JSX element class does not support attributes because it does not have a '{0}' property" },
+ The_global_type_JSX_0_may_not_have_more_than_one_property: { code: 2608, category: ts.DiagnosticCategory.Error, key: "The global type 'JSX.{0}' may not have more than one property" },
+ Cannot_emit_namespaced_JSX_elements_in_React: { code: 2650, category: ts.DiagnosticCategory.Error, key: "Cannot emit namespaced JSX elements in React" },
+ A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums: { code: 2651, category: ts.DiagnosticCategory.Error, key: "A member initializer in a enum declaration cannot reference members declared after it, including members defined in other enums." },
+ Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead: { code: 2652, category: ts.DiagnosticCategory.Error, key: "Merged declaration '{0}' cannot include a default export declaration. Consider adding a separate 'export default {0}' declaration instead." },
+ Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1: { code: 2653, category: ts.DiagnosticCategory.Error, key: "Non-abstract class expression does not implement inherited abstract member '{0}' from class '{1}'." },
+ Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_package_author_to_update_the_package_definition: { code: 2654, category: ts.DiagnosticCategory.Error, key: "Exported external package typings file cannot contain tripleslash references. Please contact the package author to update the package definition." },
+ Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_the_package_definition: { code: 2656, category: ts.DiagnosticCategory.Error, key: "Exported external package typings file '{0}' is not a module. Please contact the package author to update the package definition." },
+ Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import declaration '{0}' is using private name '{1}'." },
+ Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
+ Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
+ Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4006, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
+ Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4008, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
+ Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4010, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
+ Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4012, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of public method from exported class has or is using private name '{1}'." },
+ Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4014, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of method from exported interface has or is using private name '{1}'." },
+ Type_parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4016, category: ts.DiagnosticCategory.Error, key: "Type parameter '{0}' of exported function has or is using private name '{1}'." },
+ Implements_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4019, category: ts.DiagnosticCategory.Error, key: "Implements clause of exported class '{0}' has or is using private name '{1}'." },
+ Extends_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4020, category: ts.DiagnosticCategory.Error, key: "Extends clause of exported class '{0}' has or is using private name '{1}'." },
+ Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1: { code: 4022, category: ts.DiagnosticCategory.Error, key: "Extends clause of exported interface '{0}' has or is using private name '{1}'." },
+ Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4023, category: ts.DiagnosticCategory.Error, key: "Exported variable '{0}' has or is using name '{1}' from external module {2} but cannot be named." },
+ Exported_variable_0_has_or_is_using_name_1_from_private_module_2: { code: 4024, category: ts.DiagnosticCategory.Error, key: "Exported variable '{0}' has or is using name '{1}' from private module '{2}'." },
+ Exported_variable_0_has_or_is_using_private_name_1: { code: 4025, category: ts.DiagnosticCategory.Error, key: "Exported variable '{0}' has or is using private name '{1}'." },
+ Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4026, category: ts.DiagnosticCategory.Error, key: "Public static property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
+ Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4027, category: ts.DiagnosticCategory.Error, key: "Public static property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
+ Public_static_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4028, category: ts.DiagnosticCategory.Error, key: "Public static property '{0}' of exported class has or is using private name '{1}'." },
+ Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4029, category: ts.DiagnosticCategory.Error, key: "Public property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
+ Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4030, category: ts.DiagnosticCategory.Error, key: "Public property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
+ Public_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4031, category: ts.DiagnosticCategory.Error, key: "Public property '{0}' of exported class has or is using private name '{1}'." },
+ Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4032, category: ts.DiagnosticCategory.Error, key: "Property '{0}' of exported interface has or is using name '{1}' from private module '{2}'." },
+ Property_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4033, category: ts.DiagnosticCategory.Error, key: "Property '{0}' of exported interface has or is using private name '{1}'." },
+ Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4034, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public static property setter from exported class has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4035, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public static property setter from exported class has or is using private name '{1}'." },
+ Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4036, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public property setter from exported class has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4037, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public property setter from exported class has or is using private name '{1}'." },
+ Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4038, category: ts.DiagnosticCategory.Error, key: "Return type of public static property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
+ Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4039, category: ts.DiagnosticCategory.Error, key: "Return type of public static property getter from exported class has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4040, category: ts.DiagnosticCategory.Error, key: "Return type of public static property getter from exported class has or is using private name '{0}'." },
+ Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4041, category: ts.DiagnosticCategory.Error, key: "Return type of public property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
+ Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4042, category: ts.DiagnosticCategory.Error, key: "Return type of public property getter from exported class has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4043, category: ts.DiagnosticCategory.Error, key: "Return type of public property getter from exported class has or is using private name '{0}'." },
+ Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4044, category: ts.DiagnosticCategory.Error, key: "Return type of constructor signature from exported interface has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4045, category: ts.DiagnosticCategory.Error, key: "Return type of constructor signature from exported interface has or is using private name '{0}'." },
+ Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4046, category: ts.DiagnosticCategory.Error, key: "Return type of call signature from exported interface has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4047, category: ts.DiagnosticCategory.Error, key: "Return type of call signature from exported interface has or is using private name '{0}'." },
+ Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4048, category: ts.DiagnosticCategory.Error, key: "Return type of index signature from exported interface has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4049, category: ts.DiagnosticCategory.Error, key: "Return type of index signature from exported interface has or is using private name '{0}'." },
+ Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4050, category: ts.DiagnosticCategory.Error, key: "Return type of public static method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
+ Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4051, category: ts.DiagnosticCategory.Error, key: "Return type of public static method from exported class has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0: { code: 4052, category: ts.DiagnosticCategory.Error, key: "Return type of public static method from exported class has or is using private name '{0}'." },
+ Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4053, category: ts.DiagnosticCategory.Error, key: "Return type of public method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
+ Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4054, category: ts.DiagnosticCategory.Error, key: "Return type of public method from exported class has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0: { code: 4055, category: ts.DiagnosticCategory.Error, key: "Return type of public method from exported class has or is using private name '{0}'." },
+ Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4056, category: ts.DiagnosticCategory.Error, key: "Return type of method from exported interface has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0: { code: 4057, category: ts.DiagnosticCategory.Error, key: "Return type of method from exported interface has or is using private name '{0}'." },
+ Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4058, category: ts.DiagnosticCategory.Error, key: "Return type of exported function has or is using name '{0}' from external module {1} but cannot be named." },
+ Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1: { code: 4059, category: ts.DiagnosticCategory.Error, key: "Return type of exported function has or is using name '{0}' from private module '{1}'." },
+ Return_type_of_exported_function_has_or_is_using_private_name_0: { code: 4060, category: ts.DiagnosticCategory.Error, key: "Return type of exported function has or is using private name '{0}'." },
+ Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4061, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from external module {2} but cannot be named." },
+ Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4062, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1: { code: 4063, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of constructor from exported class has or is using private name '{1}'." },
+ Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4064, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of constructor signature from exported interface has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4065, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
+ Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4066, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of call signature from exported interface has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4067, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
+ Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4068, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
+ Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4069, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4070, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
+ Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4071, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
+ Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4072, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public method from exported class has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4073, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of public method from exported class has or is using private name '{1}'." },
+ Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4074, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of method from exported interface has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4075, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of method from exported interface has or is using private name '{1}'." },
+ Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4076, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of exported function has or is using name '{1}' from external module {2} but cannot be named." },
+ Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2: { code: 4077, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of exported function has or is using name '{1}' from private module '{2}'." },
+ Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' of exported function has or is using private name '{1}'." },
+ Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported type alias '{0}' has or is using private name '{1}'." },
+ Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default export of the module has or is using private name '{0}'." },
+ Loop_contains_block_scoped_variable_0_referenced_by_a_function_in_the_loop_This_is_only_supported_in_ECMAScript_6_or_higher: { code: 4091, category: ts.DiagnosticCategory.Error, key: "Loop contains block-scoped variable '{0}' referenced by a function in the loop. This is only supported in ECMAScript 6 or higher." },
+ The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The current host does not support the '{0}' option." },
+ Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot find the common subdirectory path for the input files." },
+ Cannot_read_file_0_Colon_1: { code: 5012, category: ts.DiagnosticCategory.Error, key: "Cannot read file '{0}': {1}" },
+ Unsupported_file_encoding: { code: 5013, category: ts.DiagnosticCategory.Error, key: "Unsupported file encoding." },
+ Failed_to_parse_file_0_Colon_1: { code: 5014, category: ts.DiagnosticCategory.Error, key: "Failed to parse file '{0}': {1}." },
+ Unknown_compiler_option_0: { code: 5023, category: ts.DiagnosticCategory.Error, key: "Unknown compiler option '{0}'." },
+ Compiler_option_0_requires_a_value_of_type_1: { code: 5024, category: ts.DiagnosticCategory.Error, key: "Compiler option '{0}' requires a value of type {1}." },
+ Could_not_write_file_0_Colon_1: { code: 5033, category: ts.DiagnosticCategory.Error, key: "Could not write file '{0}': {1}" },
+ Option_project_cannot_be_mixed_with_source_files_on_a_command_line: { code: 5042, category: ts.DiagnosticCategory.Error, key: "Option 'project' cannot be mixed with source files on a command line." },
+ Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES6_or_higher: { code: 5047, category: ts.DiagnosticCategory.Error, key: "Option 'isolatedModules' can only be used when either option'--module' is provided or option 'target' is 'ES6' or higher." },
+ Option_inlineSources_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided: { code: 5051, category: ts.DiagnosticCategory.Error, key: "Option 'inlineSources' can only be used when either option '--inlineSourceMap' or option '--sourceMap' is provided." },
+ Option_0_cannot_be_specified_without_specifying_option_1: { code: 5052, category: ts.DiagnosticCategory.Error, key: "Option '{0}' cannot be specified without specifying option '{1}'." },
+ Option_0_cannot_be_specified_with_option_1: { code: 5053, category: ts.DiagnosticCategory.Error, key: "Option '{0}' cannot be specified with option '{1}'." },
+ A_tsconfig_json_file_is_already_defined_at_Colon_0: { code: 5054, category: ts.DiagnosticCategory.Error, key: "A 'tsconfig.json' file is already defined at: '{0}'." },
+ Concatenate_and_emit_output_to_single_file: { code: 6001, category: ts.DiagnosticCategory.Message, key: "Concatenate and emit output to single file." },
+ Generates_corresponding_d_ts_file: { code: 6002, category: ts.DiagnosticCategory.Message, key: "Generates corresponding '.d.ts' file." },
+ Specifies_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations: { code: 6003, category: ts.DiagnosticCategory.Message, key: "Specifies the location where debugger should locate map files instead of generated locations." },
+ Specifies_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations: { code: 6004, category: ts.DiagnosticCategory.Message, key: "Specifies the location where debugger should locate TypeScript files instead of source locations." },
+ Watch_input_files: { code: 6005, category: ts.DiagnosticCategory.Message, key: "Watch input files." },
+ Redirect_output_structure_to_the_directory: { code: 6006, category: ts.DiagnosticCategory.Message, key: "Redirect output structure to the directory." },
+ Do_not_erase_const_enum_declarations_in_generated_code: { code: 6007, category: ts.DiagnosticCategory.Message, key: "Do not erase const enum declarations in generated code." },
+ Do_not_emit_outputs_if_any_errors_were_reported: { code: 6008, category: ts.DiagnosticCategory.Message, key: "Do not emit outputs if any errors were reported." },
+ Do_not_emit_comments_to_output: { code: 6009, category: ts.DiagnosticCategory.Message, key: "Do not emit comments to output." },
+ Do_not_emit_outputs: { code: 6010, category: ts.DiagnosticCategory.Message, key: "Do not emit outputs." },
+ Specify_ECMAScript_target_version_Colon_ES3_default_ES5_or_ES6_experimental: { code: 6015, category: ts.DiagnosticCategory.Message, key: "Specify ECMAScript target version: 'ES3' (default), 'ES5', or 'ES6' (experimental)" },
+ Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es6: { code: 6016, category: ts.DiagnosticCategory.Message, key: "Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es6'" },
+ Print_this_message: { code: 6017, category: ts.DiagnosticCategory.Message, key: "Print this message." },
+ Print_the_compiler_s_version: { code: 6019, category: ts.DiagnosticCategory.Message, key: "Print the compiler's version." },
+ Compile_the_project_in_the_given_directory: { code: 6020, category: ts.DiagnosticCategory.Message, key: "Compile the project in the given directory." },
+ Syntax_Colon_0: { code: 6023, category: ts.DiagnosticCategory.Message, key: "Syntax: {0}" },
+ options: { code: 6024, category: ts.DiagnosticCategory.Message, key: "options" },
+ file: { code: 6025, category: ts.DiagnosticCategory.Message, key: "file" },
+ Examples_Colon_0: { code: 6026, category: ts.DiagnosticCategory.Message, key: "Examples: {0}" },
+ Options_Colon: { code: 6027, category: ts.DiagnosticCategory.Message, key: "Options:" },
+ Version_0: { code: 6029, category: ts.DiagnosticCategory.Message, key: "Version {0}" },
+ Insert_command_line_options_and_files_from_a_file: { code: 6030, category: ts.DiagnosticCategory.Message, key: "Insert command line options and files from a file." },
+ File_change_detected_Starting_incremental_compilation: { code: 6032, category: ts.DiagnosticCategory.Message, key: "File change detected. Starting incremental compilation..." },
+ KIND: { code: 6034, category: ts.DiagnosticCategory.Message, key: "KIND" },
+ FILE: { code: 6035, category: ts.DiagnosticCategory.Message, key: "FILE" },
+ VERSION: { code: 6036, category: ts.DiagnosticCategory.Message, key: "VERSION" },
+ LOCATION: { code: 6037, category: ts.DiagnosticCategory.Message, key: "LOCATION" },
+ DIRECTORY: { code: 6038, category: ts.DiagnosticCategory.Message, key: "DIRECTORY" },
+ Compilation_complete_Watching_for_file_changes: { code: 6042, category: ts.DiagnosticCategory.Message, key: "Compilation complete. Watching for file changes." },
+ Generates_corresponding_map_file: { code: 6043, category: ts.DiagnosticCategory.Message, key: "Generates corresponding '.map' file." },
+ Compiler_option_0_expects_an_argument: { code: 6044, category: ts.DiagnosticCategory.Error, key: "Compiler option '{0}' expects an argument." },
+ Unterminated_quoted_string_in_response_file_0: { code: 6045, category: ts.DiagnosticCategory.Error, key: "Unterminated quoted string in response file '{0}'." },
+ Argument_for_module_option_must_be_commonjs_amd_system_umd_or_es6: { code: 6046, category: ts.DiagnosticCategory.Error, key: "Argument for '--module' option must be 'commonjs', 'amd', 'system', 'umd', or 'es6'." },
+ Argument_for_target_option_must_be_ES3_ES5_or_ES6: { code: 6047, category: ts.DiagnosticCategory.Error, key: "Argument for '--target' option must be 'ES3', 'ES5', or 'ES6'." },
+ Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1: { code: 6048, category: ts.DiagnosticCategory.Error, key: "Locale must be of the form <language> or <language>-<territory>. For example '{0}' or '{1}'." },
+ Unsupported_locale_0: { code: 6049, category: ts.DiagnosticCategory.Error, key: "Unsupported locale '{0}'." },
+ Unable_to_open_file_0: { code: 6050, category: ts.DiagnosticCategory.Error, key: "Unable to open file '{0}'." },
+ Corrupted_locale_file_0: { code: 6051, category: ts.DiagnosticCategory.Error, key: "Corrupted locale file {0}." },
+ Raise_error_on_expressions_and_declarations_with_an_implied_any_type: { code: 6052, category: ts.DiagnosticCategory.Message, key: "Raise error on expressions and declarations with an implied 'any' type." },
+ File_0_not_found: { code: 6053, category: ts.DiagnosticCategory.Error, key: "File '{0}' not found." },
+ File_0_has_unsupported_extension_The_only_supported_extensions_are_1: { code: 6054, category: ts.DiagnosticCategory.Error, key: "File '{0}' has unsupported extension. The only supported extensions are {1}." },
+ Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures: { code: 6055, category: ts.DiagnosticCategory.Message, key: "Suppress noImplicitAny errors for indexing objects lacking index signatures." },
+ Do_not_emit_declarations_for_code_that_has_an_internal_annotation: { code: 6056, category: ts.DiagnosticCategory.Message, key: "Do not emit declarations for code that has an '@internal' annotation." },
+ Specifies_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir: { code: 6058, category: ts.DiagnosticCategory.Message, key: "Specifies the root directory of input files. Use to control the output directory structure with --outDir." },
+ File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files: { code: 6059, category: ts.DiagnosticCategory.Error, key: "File '{0}' is not under 'rootDir' '{1}'. 'rootDir' is expected to contain all source files." },
+ Specifies_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix: { code: 6060, category: ts.DiagnosticCategory.Message, key: "Specifies the end of line sequence to be used when emitting files: 'CRLF' (dos) or 'LF' (unix)." },
+ NEWLINE: { code: 6061, category: ts.DiagnosticCategory.Message, key: "NEWLINE" },
+ Argument_for_newLine_option_must_be_CRLF_or_LF: { code: 6062, category: ts.DiagnosticCategory.Error, key: "Argument for '--newLine' option must be 'CRLF' or 'LF'." },
+ Argument_for_moduleResolution_option_must_be_node_or_classic: { code: 6063, category: ts.DiagnosticCategory.Error, key: "Argument for '--moduleResolution' option must be 'node' or 'classic'." },
+ Specify_JSX_code_generation_Colon_preserve_or_react: { code: 6080, category: ts.DiagnosticCategory.Message, key: "Specify JSX code generation: 'preserve' or 'react'" },
+ Argument_for_jsx_must_be_preserve_or_react: { code: 6081, category: ts.DiagnosticCategory.Message, key: "Argument for '--jsx' must be 'preserve' or 'react'." },
+ Enables_experimental_support_for_ES7_decorators: { code: 6065, category: ts.DiagnosticCategory.Message, key: "Enables experimental support for ES7 decorators." },
+ Enables_experimental_support_for_emitting_type_metadata_for_decorators: { code: 6066, category: ts.DiagnosticCategory.Message, key: "Enables experimental support for emitting type metadata for decorators." },
+ Enables_experimental_support_for_ES7_async_functions: { code: 6068, category: ts.DiagnosticCategory.Message, key: "Enables experimental support for ES7 async functions." },
+ Specifies_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6: { code: 6069, category: ts.DiagnosticCategory.Message, key: "Specifies module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6)." },
+ Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file: { code: 6070, category: ts.DiagnosticCategory.Message, key: "Initializes a TypeScript project and creates a tsconfig.json file." },
+ Successfully_created_a_tsconfig_json_file: { code: 6071, category: ts.DiagnosticCategory.Message, key: "Successfully created a tsconfig.json file." },
+ Suppress_excess_property_checks_for_object_literals: { code: 6072, category: ts.DiagnosticCategory.Message, key: "Suppress excess property checks for object literals." },
+ Variable_0_implicitly_has_an_1_type: { code: 7005, category: ts.DiagnosticCategory.Error, key: "Variable '{0}' implicitly has an '{1}' type." },
+ Parameter_0_implicitly_has_an_1_type: { code: 7006, category: ts.DiagnosticCategory.Error, key: "Parameter '{0}' implicitly has an '{1}' type." },
+ Member_0_implicitly_has_an_1_type: { code: 7008, category: ts.DiagnosticCategory.Error, key: "Member '{0}' implicitly has an '{1}' type." },
+ new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type: { code: 7009, category: ts.DiagnosticCategory.Error, key: "'new' expression, whose target lacks a construct signature, implicitly has an 'any' type." },
+ _0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type: { code: 7010, category: ts.DiagnosticCategory.Error, key: "'{0}', which lacks return-type annotation, implicitly has an '{1}' return type." },
+ Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type: { code: 7011, category: ts.DiagnosticCategory.Error, key: "Function expression, which lacks return-type annotation, implicitly has an '{0}' return type." },
+ Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7013, category: ts.DiagnosticCategory.Error, key: "Construct signature, which lacks return-type annotation, implicitly has an 'any' return type." },
+ Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_type_annotation: { code: 7016, category: ts.DiagnosticCategory.Error, key: "Property '{0}' implicitly has type 'any', because its 'set' accessor lacks a type annotation." },
+ Index_signature_of_object_type_implicitly_has_an_any_type: { code: 7017, category: ts.DiagnosticCategory.Error, key: "Index signature of object type implicitly has an 'any' type." },
+ Object_literal_s_property_0_implicitly_has_an_1_type: { code: 7018, category: ts.DiagnosticCategory.Error, key: "Object literal's property '{0}' implicitly has an '{1}' type." },
+ Rest_parameter_0_implicitly_has_an_any_type: { code: 7019, category: ts.DiagnosticCategory.Error, key: "Rest parameter '{0}' implicitly has an 'any[]' type." },
+ Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7020, category: ts.DiagnosticCategory.Error, key: "Call signature, which lacks return-type annotation, implicitly has an 'any' return type." },
+ _0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer: { code: 7022, category: ts.DiagnosticCategory.Error, key: "'{0}' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer." },
+ _0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7023, category: ts.DiagnosticCategory.Error, key: "'{0}' implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
+ Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7024, category: ts.DiagnosticCategory.Error, key: "Function implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
+ Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type: { code: 7025, category: ts.DiagnosticCategory.Error, key: "Generator implicitly has type '{0}' because it does not yield any values. Consider supplying a return type." },
+ JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists: { code: 7026, category: ts.DiagnosticCategory.Error, key: "JSX element implicitly has type 'any' because no interface 'JSX.{0}' exists" },
+ You_cannot_rename_this_element: { code: 8000, category: ts.DiagnosticCategory.Error, key: "You cannot rename this element." },
+ You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library: { code: 8001, category: ts.DiagnosticCategory.Error, key: "You cannot rename elements that are defined in the standard TypeScript library." },
+ import_can_only_be_used_in_a_ts_file: { code: 8002, category: ts.DiagnosticCategory.Error, key: "'import ... =' can only be used in a .ts file." },
+ export_can_only_be_used_in_a_ts_file: { code: 8003, category: ts.DiagnosticCategory.Error, key: "'export=' can only be used in a .ts file." },
+ type_parameter_declarations_can_only_be_used_in_a_ts_file: { code: 8004, category: ts.DiagnosticCategory.Error, key: "'type parameter declarations' can only be used in a .ts file." },
+ implements_clauses_can_only_be_used_in_a_ts_file: { code: 8005, category: ts.DiagnosticCategory.Error, key: "'implements clauses' can only be used in a .ts file." },
+ interface_declarations_can_only_be_used_in_a_ts_file: { code: 8006, category: ts.DiagnosticCategory.Error, key: "'interface declarations' can only be used in a .ts file." },
+ module_declarations_can_only_be_used_in_a_ts_file: { code: 8007, category: ts.DiagnosticCategory.Error, key: "'module declarations' can only be used in a .ts file." },
+ type_aliases_can_only_be_used_in_a_ts_file: { code: 8008, category: ts.DiagnosticCategory.Error, key: "'type aliases' can only be used in a .ts file." },
+ _0_can_only_be_used_in_a_ts_file: { code: 8009, category: ts.DiagnosticCategory.Error, key: "'{0}' can only be used in a .ts file." },
+ types_can_only_be_used_in_a_ts_file: { code: 8010, category: ts.DiagnosticCategory.Error, key: "'types' can only be used in a .ts file." },
+ type_arguments_can_only_be_used_in_a_ts_file: { code: 8011, category: ts.DiagnosticCategory.Error, key: "'type arguments' can only be used in a .ts file." },
+ parameter_modifiers_can_only_be_used_in_a_ts_file: { code: 8012, category: ts.DiagnosticCategory.Error, key: "'parameter modifiers' can only be used in a .ts file." },
+ property_declarations_can_only_be_used_in_a_ts_file: { code: 8014, category: ts.DiagnosticCategory.Error, key: "'property declarations' can only be used in a .ts file." },
+ enum_declarations_can_only_be_used_in_a_ts_file: { code: 8015, category: ts.DiagnosticCategory.Error, key: "'enum declarations' can only be used in a .ts file." },
+ type_assertion_expressions_can_only_be_used_in_a_ts_file: { code: 8016, category: ts.DiagnosticCategory.Error, key: "'type assertion expressions' can only be used in a .ts file." },
+ decorators_can_only_be_used_in_a_ts_file: { code: 8017, category: ts.DiagnosticCategory.Error, key: "'decorators' can only be used in a .ts file." },
+ Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_class_extends_clauses: { code: 9002, category: ts.DiagnosticCategory.Error, key: "Only identifiers/qualified-names with optional type arguments are currently supported in a class 'extends' clauses." },
+ class_expressions_are_not_currently_supported: { code: 9003, category: ts.DiagnosticCategory.Error, key: "'class' expressions are not currently supported." },
+ JSX_attributes_must_only_be_assigned_a_non_empty_expression: { code: 17000, category: ts.DiagnosticCategory.Error, key: "JSX attributes must only be assigned a non-empty 'expression'." },
+ JSX_elements_cannot_have_multiple_attributes_with_the_same_name: { code: 17001, category: ts.DiagnosticCategory.Error, key: "JSX elements cannot have multiple attributes with the same name." },
+ Expected_corresponding_JSX_closing_tag_for_0: { code: 17002, category: ts.DiagnosticCategory.Error, key: "Expected corresponding JSX closing tag for '{0}'." },
+ JSX_attribute_expected: { code: 17003, category: ts.DiagnosticCategory.Error, key: "JSX attribute expected." },
+ Cannot_use_JSX_unless_the_jsx_flag_is_provided: { code: 17004, category: ts.DiagnosticCategory.Error, key: "Cannot use JSX unless the '--jsx' flag is provided." },
+ A_constructor_cannot_contain_a_super_call_when_its_class_extends_null: { code: 17005, category: ts.DiagnosticCategory.Error, key: "A constructor cannot contain a 'super' call when its class extends 'null'" },
+ An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17006, category: ts.DiagnosticCategory.Error, key: "An unary expression with the '{0}' operator is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
+ A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." }
+ };
+})(ts || (ts = {}));
+/// <reference path="core.ts"/>
+/// <reference path="diagnosticInformationMap.generated.ts"/>
+var ts;
+(function (ts) {
+ /* @internal */
+ function tokenIsIdentifierOrKeyword(token) {
+ return token >= 69 /* Identifier */;
+ }
+ ts.tokenIsIdentifierOrKeyword = tokenIsIdentifierOrKeyword;
+ var textToToken = {
+ "abstract": 115 /* AbstractKeyword */,
+ "any": 117 /* AnyKeyword */,
+ "as": 116 /* AsKeyword */,
+ "boolean": 120 /* BooleanKeyword */,
+ "break": 70 /* BreakKeyword */,
+ "case": 71 /* CaseKeyword */,
+ "catch": 72 /* CatchKeyword */,
+ "class": 73 /* ClassKeyword */,
+ "continue": 75 /* ContinueKeyword */,
+ "const": 74 /* ConstKeyword */,
+ "constructor": 121 /* ConstructorKeyword */,
+ "debugger": 76 /* DebuggerKeyword */,
+ "declare": 122 /* DeclareKeyword */,
+ "default": 77 /* DefaultKeyword */,
+ "delete": 78 /* DeleteKeyword */,
+ "do": 79 /* DoKeyword */,
+ "else": 80 /* ElseKeyword */,
+ "enum": 81 /* EnumKeyword */,
+ "export": 82 /* ExportKeyword */,
+ "extends": 83 /* ExtendsKeyword */,
+ "false": 84 /* FalseKeyword */,
+ "finally": 85 /* FinallyKeyword */,
+ "for": 86 /* ForKeyword */,
+ "from": 133 /* FromKeyword */,
+ "function": 87 /* FunctionKeyword */,
+ "get": 123 /* GetKeyword */,
+ "if": 88 /* IfKeyword */,
+ "implements": 106 /* ImplementsKeyword */,
+ "import": 89 /* ImportKeyword */,
+ "in": 90 /* InKeyword */,
+ "instanceof": 91 /* InstanceOfKeyword */,
+ "interface": 107 /* InterfaceKeyword */,
+ "is": 124 /* IsKeyword */,
+ "let": 108 /* LetKeyword */,
+ "module": 125 /* ModuleKeyword */,
+ "namespace": 126 /* NamespaceKeyword */,
+ "new": 92 /* NewKeyword */,
+ "null": 93 /* NullKeyword */,
+ "number": 128 /* NumberKeyword */,
+ "package": 109 /* PackageKeyword */,
+ "private": 110 /* PrivateKeyword */,
+ "protected": 111 /* ProtectedKeyword */,
+ "public": 112 /* PublicKeyword */,
+ "require": 127 /* RequireKeyword */,
+ "return": 94 /* ReturnKeyword */,
+ "set": 129 /* SetKeyword */,
+ "static": 113 /* StaticKeyword */,
+ "string": 130 /* StringKeyword */,
+ "super": 95 /* SuperKeyword */,
+ "switch": 96 /* SwitchKeyword */,
+ "symbol": 131 /* SymbolKeyword */,
+ "this": 97 /* ThisKeyword */,
+ "throw": 98 /* ThrowKeyword */,
+ "true": 99 /* TrueKeyword */,
+ "try": 100 /* TryKeyword */,
+ "type": 132 /* TypeKeyword */,
+ "typeof": 101 /* TypeOfKeyword */,
+ "var": 102 /* VarKeyword */,
+ "void": 103 /* VoidKeyword */,
+ "while": 104 /* WhileKeyword */,
+ "with": 105 /* WithKeyword */,
+ "yield": 114 /* YieldKeyword */,
+ "async": 118 /* AsyncKeyword */,
+ "await": 119 /* AwaitKeyword */,
+ "of": 134 /* OfKeyword */,
+ "{": 15 /* OpenBraceToken */,
+ "}": 16 /* CloseBraceToken */,
+ "(": 17 /* OpenParenToken */,
+ ")": 18 /* CloseParenToken */,
+ "[": 19 /* OpenBracketToken */,
+ "]": 20 /* CloseBracketToken */,
+ ".": 21 /* DotToken */,
+ "...": 22 /* DotDotDotToken */,
+ ";": 23 /* SemicolonToken */,
+ ",": 24 /* CommaToken */,
+ "<": 25 /* LessThanToken */,
+ ">": 27 /* GreaterThanToken */,
+ "<=": 28 /* LessThanEqualsToken */,
+ ">=": 29 /* GreaterThanEqualsToken */,
+ "==": 30 /* EqualsEqualsToken */,
+ "!=": 31 /* ExclamationEqualsToken */,
+ "===": 32 /* EqualsEqualsEqualsToken */,
+ "!==": 33 /* ExclamationEqualsEqualsToken */,
+ "=>": 34 /* EqualsGreaterThanToken */,
+ "+": 35 /* PlusToken */,
+ "-": 36 /* MinusToken */,
+ "**": 38 /* AsteriskAsteriskToken */,
+ "*": 37 /* AsteriskToken */,
+ "/": 39 /* SlashToken */,
+ "%": 40 /* PercentToken */,
+ "++": 41 /* PlusPlusToken */,
+ "--": 42 /* MinusMinusToken */,
+ "<<": 43 /* LessThanLessThanToken */,
+ "</": 26 /* LessThanSlashToken */,
+ ">>": 44 /* GreaterThanGreaterThanToken */,
+ ">>>": 45 /* GreaterThanGreaterThanGreaterThanToken */,
+ "&": 46 /* AmpersandToken */,
+ "|": 47 /* BarToken */,
+ "^": 48 /* CaretToken */,
+ "!": 49 /* ExclamationToken */,
+ "~": 50 /* TildeToken */,
+ "&&": 51 /* AmpersandAmpersandToken */,
+ "||": 52 /* BarBarToken */,
+ "?": 53 /* QuestionToken */,
+ ":": 54 /* ColonToken */,
+ "=": 56 /* EqualsToken */,
+ "+=": 57 /* PlusEqualsToken */,
+ "-=": 58 /* MinusEqualsToken */,
+ "*=": 59 /* AsteriskEqualsToken */,
+ "**=": 60 /* AsteriskAsteriskEqualsToken */,
+ "/=": 61 /* SlashEqualsToken */,
+ "%=": 62 /* PercentEqualsToken */,
+ "<<=": 63 /* LessThanLessThanEqualsToken */,
+ ">>=": 64 /* GreaterThanGreaterThanEqualsToken */,
+ ">>>=": 65 /* GreaterThanGreaterThanGreaterThanEqualsToken */,
+ "&=": 66 /* AmpersandEqualsToken */,
+ "|=": 67 /* BarEqualsToken */,
+ "^=": 68 /* CaretEqualsToken */,
+ "@": 55 /* AtToken */
+ };
+ /*
+ As per ECMAScript Language Specification 3th Edition, Section 7.6: Identifiers
+ IdentifierStart ::
+ Can contain Unicode 3.0.0 categories:
+ Uppercase letter (Lu),
+ Lowercase letter (Ll),
+ Titlecase letter (Lt),
+ Modifier letter (Lm),
+ Other letter (Lo), or
+ Letter number (Nl).
+ IdentifierPart :: =
+ Can contain IdentifierStart + Unicode 3.0.0 categories:
+ Non-spacing mark (Mn),
+ Combining spacing mark (Mc),
+ Decimal number (Nd), or
+ Connector punctuation (Pc).
+
+ Codepoint ranges for ES3 Identifiers are extracted from the Unicode 3.0.0 specification at:
+ http://www.unicode.org/Public/3.0-Update/UnicodeData-3.0.0.txt
+ */
+ var unicodeES3IdentifierStart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 543, 546, 563, 592, 685, 688, 696, 699, 705, 720, 721, 736, 740, 750, 750, 890, 890, 902, 902, 904, 906, 908, 908, 910, 929, 931, 974, 976, 983, 986, 1011, 1024, 1153, 1164, 1220, 1223, 1224, 1227, 1228, 1232, 1269, 1272, 1273, 1329, 1366, 1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1569, 1594, 1600, 1610, 1649, 1747, 1749, 1749, 1765, 1766, 1786, 1788, 1808, 1808, 1810, 1836, 1920, 1957, 2309, 2361, 2365, 2365, 2384, 2384, 2392, 2401, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2524, 2525, 2527, 2529, 2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654, 2674, 2676, 2693, 2699, 2701, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2784, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2870, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 2997, 2999, 3001, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3168, 3169, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3294, 3294, 3296, 3297, 3333, 3340, 3342, 3344, 3346, 3368, 3370, 3385, 3424, 3425, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760, 3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3805, 3840, 3840, 3904, 3911, 3913, 3946, 3976, 3979, 4096, 4129, 4131, 4135, 4137, 4138, 4176, 4181, 4256, 4293, 4304, 4342, 4352, 4441, 4447, 4514, 4520, 4601, 4608, 4614, 4616, 4678, 4680, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4742, 4744, 4744, 4746, 4749, 4752, 4782, 4784, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4814, 4816, 4822, 4824, 4846, 4848, 4878, 4880, 4880, 4882, 4885, 4888, 4894, 4896, 4934, 4936, 4954, 5024, 5108, 5121, 5740, 5743, 5750, 5761, 5786, 5792, 5866, 6016, 6067, 6176, 6263, 6272, 6312, 7680, 7835, 7840, 7929, 7936, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8319, 8319, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8497, 8499, 8505, 8544, 8579, 12293, 12295, 12321, 12329, 12337, 12341, 12344, 12346, 12353, 12436, 12445, 12446, 12449, 12538, 12540, 12542, 12549, 12588, 12593, 12686, 12704, 12727, 13312, 19893, 19968, 40869, 40960, 42124, 44032, 55203, 63744, 64045, 64256, 64262, 64275, 64279, 64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65136, 65138, 65140, 65140, 65142, 65276, 65313, 65338, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+ var unicodeES3IdentifierPart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 543, 546, 563, 592, 685, 688, 696, 699, 705, 720, 721, 736, 740, 750, 750, 768, 846, 864, 866, 890, 890, 902, 902, 904, 906, 908, 908, 910, 929, 931, 974, 976, 983, 986, 1011, 1024, 1153, 1155, 1158, 1164, 1220, 1223, 1224, 1227, 1228, 1232, 1269, 1272, 1273, 1329, 1366, 1369, 1369, 1377, 1415, 1425, 1441, 1443, 1465, 1467, 1469, 1471, 1471, 1473, 1474, 1476, 1476, 1488, 1514, 1520, 1522, 1569, 1594, 1600, 1621, 1632, 1641, 1648, 1747, 1749, 1756, 1759, 1768, 1770, 1773, 1776, 1788, 1808, 1836, 1840, 1866, 1920, 1968, 2305, 2307, 2309, 2361, 2364, 2381, 2384, 2388, 2392, 2403, 2406, 2415, 2433, 2435, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2492, 2492, 2494, 2500, 2503, 2504, 2507, 2509, 2519, 2519, 2524, 2525, 2527, 2531, 2534, 2545, 2562, 2562, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2620, 2620, 2622, 2626, 2631, 2632, 2635, 2637, 2649, 2652, 2654, 2654, 2662, 2676, 2689, 2691, 2693, 2699, 2701, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2748, 2757, 2759, 2761, 2763, 2765, 2768, 2768, 2784, 2784, 2790, 2799, 2817, 2819, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2870, 2873, 2876, 2883, 2887, 2888, 2891, 2893, 2902, 2903, 2908, 2909, 2911, 2913, 2918, 2927, 2946, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 2997, 2999, 3001, 3006, 3010, 3014, 3016, 3018, 3021, 3031, 3031, 3047, 3055, 3073, 3075, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3134, 3140, 3142, 3144, 3146, 3149, 3157, 3158, 3168, 3169, 3174, 3183, 3202, 3203, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3262, 3268, 3270, 3272, 3274, 3277, 3285, 3286, 3294, 3294, 3296, 3297, 3302, 3311, 3330, 3331, 3333, 3340, 3342, 3344, 3346, 3368, 3370, 3385, 3390, 3395, 3398, 3400, 3402, 3405, 3415, 3415, 3424, 3425, 3430, 3439, 3458, 3459, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3530, 3530, 3535, 3540, 3542, 3542, 3544, 3551, 3570, 3571, 3585, 3642, 3648, 3662, 3664, 3673, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3769, 3771, 3773, 3776, 3780, 3782, 3782, 3784, 3789, 3792, 3801, 3804, 3805, 3840, 3840, 3864, 3865, 3872, 3881, 3893, 3893, 3895, 3895, 3897, 3897, 3902, 3911, 3913, 3946, 3953, 3972, 3974, 3979, 3984, 3991, 3993, 4028, 4038, 4038, 4096, 4129, 4131, 4135, 4137, 4138, 4140, 4146, 4150, 4153, 4160, 4169, 4176, 4185, 4256, 4293, 4304, 4342, 4352, 4441, 4447, 4514, 4520, 4601, 4608, 4614, 4616, 4678, 4680, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4742, 4744, 4744, 4746, 4749, 4752, 4782, 4784, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4814, 4816, 4822, 4824, 4846, 4848, 4878, 4880, 4880, 4882, 4885, 4888, 4894, 4896, 4934, 4936, 4954, 4969, 4977, 5024, 5108, 5121, 5740, 5743, 5750, 5761, 5786, 5792, 5866, 6016, 6099, 6112, 6121, 6160, 6169, 6176, 6263, 6272, 6313, 7680, 7835, 7840, 7929, 7936, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8255, 8256, 8319, 8319, 8400, 8412, 8417, 8417, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8497, 8499, 8505, 8544, 8579, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12346, 12353, 12436, 12441, 12442, 12445, 12446, 12449, 12542, 12549, 12588, 12593, 12686, 12704, 12727, 13312, 19893, 19968, 40869, 40960, 42124, 44032, 55203, 63744, 64045, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65056, 65059, 65075, 65076, 65101, 65103, 65136, 65138, 65140, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65381, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+ /*
+ As per ECMAScript Language Specification 5th Edition, Section 7.6: ISyntaxToken Names and Identifiers
+ IdentifierStart ::
+ Can contain Unicode 6.2 categories:
+ Uppercase letter (Lu),
+ Lowercase letter (Ll),
+ Titlecase letter (Lt),
+ Modifier letter (Lm),
+ Other letter (Lo), or
+ Letter number (Nl).
+ IdentifierPart ::
+ Can contain IdentifierStart + Unicode 6.2 categories:
+ Non-spacing mark (Mn),
+ Combining spacing mark (Mc),
+ Decimal number (Nd),
+ Connector punctuation (Pc),
+ <ZWNJ>, or
+ <ZWJ>.
+
+ Codepoint ranges for ES5 Identifiers are extracted from the Unicode 6.2 specification at:
+ http://www.unicode.org/Public/6.2.0/ucd/UnicodeData.txt
+ */
+ var unicodeES5IdentifierStart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, 880, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908, 910, 929, 931, 1013, 1015, 1153, 1162, 1319, 1329, 1366, 1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1568, 1610, 1646, 1647, 1649, 1747, 1749, 1749, 1765, 1766, 1774, 1775, 1786, 1788, 1791, 1791, 1808, 1808, 1810, 1839, 1869, 1957, 1969, 1969, 1994, 2026, 2036, 2037, 2042, 2042, 2048, 2069, 2074, 2074, 2084, 2084, 2088, 2088, 2112, 2136, 2208, 2208, 2210, 2220, 2308, 2361, 2365, 2365, 2384, 2384, 2392, 2401, 2417, 2423, 2425, 2431, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2493, 2493, 2510, 2510, 2524, 2525, 2527, 2529, 2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654, 2674, 2676, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2785, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2869, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2929, 2929, 2947, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, 3024, 3024, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3133, 3133, 3160, 3161, 3168, 3169, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3261, 3261, 3294, 3294, 3296, 3297, 3313, 3314, 3333, 3340, 3342, 3344, 3346, 3386, 3389, 3389, 3406, 3406, 3424, 3425, 3450, 3455, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760, 3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3807, 3840, 3840, 3904, 3911, 3913, 3948, 3976, 3980, 4096, 4138, 4159, 4159, 4176, 4181, 4186, 4189, 4193, 4193, 4197, 4198, 4206, 4208, 4213, 4225, 4238, 4238, 4256, 4293, 4295, 4295, 4301, 4301, 4304, 4346, 4348, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, 4882, 4885, 4888, 4954, 4992, 5007, 5024, 5108, 5121, 5740, 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900, 5902, 5905, 5920, 5937, 5952, 5969, 5984, 5996, 5998, 6000, 6016, 6067, 6103, 6103, 6108, 6108, 6176, 6263, 6272, 6312, 6314, 6314, 6320, 6389, 6400, 6428, 6480, 6509, 6512, 6516, 6528, 6571, 6593, 6599, 6656, 6678, 6688, 6740, 6823, 6823, 6917, 6963, 6981, 6987, 7043, 7072, 7086, 7087, 7098, 7141, 7168, 7203, 7245, 7247, 7258, 7293, 7401, 7404, 7406, 7409, 7413, 7414, 7424, 7615, 7680, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8305, 8305, 8319, 8319, 8336, 8348, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521, 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, 11360, 11492, 11499, 11502, 11506, 11507, 11520, 11557, 11559, 11559, 11565, 11565, 11568, 11623, 11631, 11631, 11648, 11670, 11680, 11686, 11688, 11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11823, 11823, 12293, 12295, 12321, 12329, 12337, 12341, 12344, 12348, 12353, 12438, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42527, 42538, 42539, 42560, 42606, 42623, 42647, 42656, 42735, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43009, 43011, 43013, 43015, 43018, 43020, 43042, 43072, 43123, 43138, 43187, 43250, 43255, 43259, 43259, 43274, 43301, 43312, 43334, 43360, 43388, 43396, 43442, 43471, 43471, 43520, 43560, 43584, 43586, 43588, 43595, 43616, 43638, 43642, 43642, 43648, 43695, 43697, 43697, 43701, 43702, 43705, 43709, 43712, 43712, 43714, 43714, 43739, 43741, 43744, 43754, 43762, 43764, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44002, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65136, 65140, 65142, 65276, 65313, 65338, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+ var unicodeES5IdentifierPart = [170, 170, 181, 181, 186, 186, 192, 214, 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, 768, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908, 910, 929, 931, 1013, 1015, 1153, 1155, 1159, 1162, 1319, 1329, 1366, 1369, 1369, 1377, 1415, 1425, 1469, 1471, 1471, 1473, 1474, 1476, 1477, 1479, 1479, 1488, 1514, 1520, 1522, 1552, 1562, 1568, 1641, 1646, 1747, 1749, 1756, 1759, 1768, 1770, 1788, 1791, 1791, 1808, 1866, 1869, 1969, 1984, 2037, 2042, 2042, 2048, 2093, 2112, 2139, 2208, 2208, 2210, 2220, 2276, 2302, 2304, 2403, 2406, 2415, 2417, 2423, 2425, 2431, 2433, 2435, 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, 2486, 2489, 2492, 2500, 2503, 2504, 2507, 2510, 2519, 2519, 2524, 2525, 2527, 2531, 2534, 2545, 2561, 2563, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, 2610, 2611, 2613, 2614, 2616, 2617, 2620, 2620, 2622, 2626, 2631, 2632, 2635, 2637, 2641, 2641, 2649, 2652, 2654, 2654, 2662, 2677, 2689, 2691, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, 2738, 2739, 2741, 2745, 2748, 2757, 2759, 2761, 2763, 2765, 2768, 2768, 2784, 2787, 2790, 2799, 2817, 2819, 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, 2869, 2873, 2876, 2884, 2887, 2888, 2891, 2893, 2902, 2903, 2908, 2909, 2911, 2915, 2918, 2927, 2929, 2929, 2946, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, 3006, 3010, 3014, 3016, 3018, 3021, 3024, 3024, 3031, 3031, 3046, 3055, 3073, 3075, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, 3125, 3129, 3133, 3140, 3142, 3144, 3146, 3149, 3157, 3158, 3160, 3161, 3168, 3171, 3174, 3183, 3202, 3203, 3205, 3212, 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3260, 3268, 3270, 3272, 3274, 3277, 3285, 3286, 3294, 3294, 3296, 3299, 3302, 3311, 3313, 3314, 3330, 3331, 3333, 3340, 3342, 3344, 3346, 3386, 3389, 3396, 3398, 3400, 3402, 3406, 3415, 3415, 3424, 3427, 3430, 3439, 3450, 3455, 3458, 3459, 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, 3530, 3530, 3535, 3540, 3542, 3542, 3544, 3551, 3570, 3571, 3585, 3642, 3648, 3662, 3664, 3673, 3713, 3714, 3716, 3716, 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3769, 3771, 3773, 3776, 3780, 3782, 3782, 3784, 3789, 3792, 3801, 3804, 3807, 3840, 3840, 3864, 3865, 3872, 3881, 3893, 3893, 3895, 3895, 3897, 3897, 3902, 3911, 3913, 3948, 3953, 3972, 3974, 3991, 3993, 4028, 4038, 4038, 4096, 4169, 4176, 4253, 4256, 4293, 4295, 4295, 4301, 4301, 4304, 4346, 4348, 4680, 4682, 4685, 4688, 4694, 4696, 4696, 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, 4882, 4885, 4888, 4954, 4957, 4959, 4992, 5007, 5024, 5108, 5121, 5740, 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900, 5902, 5908, 5920, 5940, 5952, 5971, 5984, 5996, 5998, 6000, 6002, 6003, 6016, 6099, 6103, 6103, 6108, 6109, 6112, 6121, 6155, 6157, 6160, 6169, 6176, 6263, 6272, 6314, 6320, 6389, 6400, 6428, 6432, 6443, 6448, 6459, 6470, 6509, 6512, 6516, 6528, 6571, 6576, 6601, 6608, 6617, 6656, 6683, 6688, 6750, 6752, 6780, 6783, 6793, 6800, 6809, 6823, 6823, 6912, 6987, 6992, 7001, 7019, 7027, 7040, 7155, 7168, 7223, 7232, 7241, 7245, 7293, 7376, 7378, 7380, 7414, 7424, 7654, 7676, 7957, 7960, 7965, 7968, 8005, 8008, 8013, 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, 8204, 8205, 8255, 8256, 8276, 8276, 8305, 8305, 8319, 8319, 8336, 8348, 8400, 8412, 8417, 8417, 8421, 8432, 8450, 8450, 8455, 8455, 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, 8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521, 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, 11360, 11492, 11499, 11507, 11520, 11557, 11559, 11559, 11565, 11565, 11568, 11623, 11631, 11631, 11647, 11670, 11680, 11686, 11688, 11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11744, 11775, 11823, 11823, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12348, 12353, 12438, 12441, 12442, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42539, 42560, 42607, 42612, 42621, 42623, 42647, 42655, 42737, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43047, 43072, 43123, 43136, 43204, 43216, 43225, 43232, 43255, 43259, 43259, 43264, 43309, 43312, 43347, 43360, 43388, 43392, 43456, 43471, 43481, 43520, 43574, 43584, 43597, 43600, 43609, 43616, 43638, 43642, 43643, 43648, 43714, 43739, 43741, 43744, 43759, 43762, 43766, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44010, 44012, 44013, 44016, 44025, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65024, 65039, 65056, 65062, 65075, 65076, 65101, 65103, 65136, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
+ function lookupInUnicodeMap(code, map) {
+ // Bail out quickly if it couldn't possibly be in the map.
+ if (code < map[0]) {
+ return false;
+ }
+ // Perform binary search in one of the Unicode range maps
+ var lo = 0;
+ var hi = map.length;
+ var mid;
+ while (lo + 1 < hi) {
+ mid = lo + (hi - lo) / 2;
+ // mid has to be even to catch a range's beginning
+ mid -= mid % 2;
+ if (map[mid] <= code && code <= map[mid + 1]) {
+ return true;
+ }
+ if (code < map[mid]) {
+ hi = mid;
+ }
+ else {
+ lo = mid + 2;
+ }
+ }
+ return false;
+ }
+ /* @internal */ function isUnicodeIdentifierStart(code, languageVersion) {
+ return languageVersion >= 1 /* ES5 */ ?
+ lookupInUnicodeMap(code, unicodeES5IdentifierStart) :
+ lookupInUnicodeMap(code, unicodeES3IdentifierStart);
+ }
+ ts.isUnicodeIdentifierStart = isUnicodeIdentifierStart;
+ function isUnicodeIdentifierPart(code, languageVersion) {
+ return languageVersion >= 1 /* ES5 */ ?
+ lookupInUnicodeMap(code, unicodeES5IdentifierPart) :
+ lookupInUnicodeMap(code, unicodeES3IdentifierPart);
+ }
+ function makeReverseMap(source) {
+ var result = [];
+ for (var name_4 in source) {
+ if (source.hasOwnProperty(name_4)) {
+ result[source[name_4]] = name_4;
+ }
+ }
+ return result;
+ }
+ var tokenStrings = makeReverseMap(textToToken);
+ function tokenToString(t) {
+ return tokenStrings[t];
+ }
+ ts.tokenToString = tokenToString;
+ /* @internal */
+ function stringToToken(s) {
+ return textToToken[s];
+ }
+ ts.stringToToken = stringToToken;
+ /* @internal */
+ function computeLineStarts(text) {
+ var result = new Array();
+ var pos = 0;
+ var lineStart = 0;
+ while (pos < text.length) {
+ var ch = text.charCodeAt(pos++);
+ switch (ch) {
+ case 13 /* carriageReturn */:
+ if (text.charCodeAt(pos) === 10 /* lineFeed */) {
+ pos++;
+ }
+ case 10 /* lineFeed */:
+ result.push(lineStart);
+ lineStart = pos;
+ break;
+ default:
+ if (ch > 127 /* maxAsciiCharacter */ && isLineBreak(ch)) {
+ result.push(lineStart);
+ lineStart = pos;
+ }
+ break;
+ }
+ }
+ result.push(lineStart);
+ return result;
+ }
+ ts.computeLineStarts = computeLineStarts;
+ function getPositionOfLineAndCharacter(sourceFile, line, character) {
+ return computePositionOfLineAndCharacter(getLineStarts(sourceFile), line, character);
+ }
+ ts.getPositionOfLineAndCharacter = getPositionOfLineAndCharacter;
+ /* @internal */
+ function computePositionOfLineAndCharacter(lineStarts, line, character) {
+ ts.Debug.assert(line >= 0 && line < lineStarts.length);
+ return lineStarts[line] + character;
+ }
+ ts.computePositionOfLineAndCharacter = computePositionOfLineAndCharacter;
+ /* @internal */
+ function getLineStarts(sourceFile) {
+ return sourceFile.lineMap || (sourceFile.lineMap = computeLineStarts(sourceFile.text));
+ }
+ ts.getLineStarts = getLineStarts;
+ /* @internal */
+ /**
+ * We assume the first line starts at position 0 and 'position' is non-negative.
+ */
+ function computeLineAndCharacterOfPosition(lineStarts, position) {
+ var lineNumber = ts.binarySearch(lineStarts, position);
+ if (lineNumber < 0) {
+ // If the actual position was not found,
+ // the binary search returns the 2's-complement of the next line start
+ // e.g. if the line starts at [5, 10, 23, 80] and the position requested was 20
+ // then the search will return -2.
+ //
+ // We want the index of the previous line start, so we subtract 1.
+ // Review 2's-complement if this is confusing.
+ lineNumber = ~lineNumber - 1;
+ ts.Debug.assert(lineNumber !== -1, "position cannot precede the beginning of the file");
+ }
+ return {
+ line: lineNumber,
+ character: position - lineStarts[lineNumber]
+ };
+ }
+ ts.computeLineAndCharacterOfPosition = computeLineAndCharacterOfPosition;
+ function getLineAndCharacterOfPosition(sourceFile, position) {
+ return computeLineAndCharacterOfPosition(getLineStarts(sourceFile), position);
+ }
+ ts.getLineAndCharacterOfPosition = getLineAndCharacterOfPosition;
+ var hasOwnProperty = Object.prototype.hasOwnProperty;
+ function isWhiteSpace(ch) {
+ // Note: nextLine is in the Zs space, and should be considered to be a whitespace.
+ // It is explicitly not a line-break as it isn't in the exact set specified by EcmaScript.
+ return ch === 32 /* space */ ||
+ ch === 9 /* tab */ ||
+ ch === 11 /* verticalTab */ ||
+ ch === 12 /* formFeed */ ||
+ ch === 160 /* nonBreakingSpace */ ||
+ ch === 133 /* nextLine */ ||
+ ch === 5760 /* ogham */ ||
+ ch >= 8192 /* enQuad */ && ch <= 8203 /* zeroWidthSpace */ ||
+ ch === 8239 /* narrowNoBreakSpace */ ||
+ ch === 8287 /* mathematicalSpace */ ||
+ ch === 12288 /* ideographicSpace */ ||
+ ch === 65279 /* byteOrderMark */;
+ }
+ ts.isWhiteSpace = isWhiteSpace;
+ function isLineBreak(ch) {
+ // ES5 7.3:
+ // The ECMAScript line terminator characters are listed in Table 3.
+ // Table 3: Line Terminator Characters
+ // Code Unit Value Name Formal Name
+ // \u000A Line Feed <LF>
+ // \u000D Carriage Return <CR>
+ // \u2028 Line separator <LS>
+ // \u2029 Paragraph separator <PS>
+ // Only the characters in Table 3 are treated as line terminators. Other new line or line
+ // breaking characters are treated as white space but not as line terminators.
+ return ch === 10 /* lineFeed */ ||
+ ch === 13 /* carriageReturn */ ||
+ ch === 8232 /* lineSeparator */ ||
+ ch === 8233 /* paragraphSeparator */;
+ }
+ ts.isLineBreak = isLineBreak;
+ function isDigit(ch) {
+ return ch >= 48 /* _0 */ && ch <= 57 /* _9 */;
+ }
+ /* @internal */
+ function isOctalDigit(ch) {
+ return ch >= 48 /* _0 */ && ch <= 55 /* _7 */;
+ }
+ ts.isOctalDigit = isOctalDigit;
+ function couldStartTrivia(text, pos) {
+ // Keep in sync with skipTrivia
+ var ch = text.charCodeAt(pos);
+ switch (ch) {
+ case 13 /* carriageReturn */:
+ case 10 /* lineFeed */:
+ case 9 /* tab */:
+ case 11 /* verticalTab */:
+ case 12 /* formFeed */:
+ case 32 /* space */:
+ case 47 /* slash */:
+ // starts of normal trivia
+ case 60 /* lessThan */:
+ case 61 /* equals */:
+ case 62 /* greaterThan */:
+ // Starts of conflict marker trivia
+ return true;
+ case 35 /* hash */:
+ // Only if its the beginning can we have #! trivia
+ return pos === 0;
+ default:
+ return ch > 127 /* maxAsciiCharacter */;
+ }
+ }
+ ts.couldStartTrivia = couldStartTrivia;
+ /* @internal */
+ function skipTrivia(text, pos, stopAfterLineBreak) {
+ // Keep in sync with couldStartTrivia
+ while (true) {
+ var ch = text.charCodeAt(pos);
+ switch (ch) {
+ case 13 /* carriageReturn */:
+ if (text.charCodeAt(pos + 1) === 10 /* lineFeed */) {
+ pos++;
+ }
+ case 10 /* lineFeed */:
+ pos++;
+ if (stopAfterLineBreak) {
+ return pos;
+ }
+ continue;
+ case 9 /* tab */:
+ case 11 /* verticalTab */:
+ case 12 /* formFeed */:
+ case 32 /* space */:
+ pos++;
+ continue;
+ case 47 /* slash */:
+ if (text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ while (pos < text.length) {
+ if (isLineBreak(text.charCodeAt(pos))) {
+ break;
+ }
+ pos++;
+ }
+ continue;
+ }
+ if (text.charCodeAt(pos + 1) === 42 /* asterisk */) {
+ pos += 2;
+ while (pos < text.length) {
+ if (text.charCodeAt(pos) === 42 /* asterisk */ && text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ break;
+ }
+ pos++;
+ }
+ continue;
+ }
+ break;
+ case 60 /* lessThan */:
+ case 61 /* equals */:
+ case 62 /* greaterThan */:
+ if (isConflictMarkerTrivia(text, pos)) {
+ pos = scanConflictMarkerTrivia(text, pos);
+ continue;
+ }
+ break;
+ case 35 /* hash */:
+ if (pos === 0 && isShebangTrivia(text, pos)) {
+ pos = scanShebangTrivia(text, pos);
+ continue;
+ }
+ break;
+ default:
+ if (ch > 127 /* maxAsciiCharacter */ && (isWhiteSpace(ch) || isLineBreak(ch))) {
+ pos++;
+ continue;
+ }
+ break;
+ }
+ return pos;
+ }
+ }
+ ts.skipTrivia = skipTrivia;
+ // All conflict markers consist of the same character repeated seven times. If it is
+ // a <<<<<<< or >>>>>>> marker then it is also followd by a space.
+ var mergeConflictMarkerLength = "<<<<<<<".length;
+ function isConflictMarkerTrivia(text, pos) {
+ ts.Debug.assert(pos >= 0);
+ // Conflict markers must be at the start of a line.
+ if (pos === 0 || isLineBreak(text.charCodeAt(pos - 1))) {
+ var ch = text.charCodeAt(pos);
+ if ((pos + mergeConflictMarkerLength) < text.length) {
+ for (var i = 0, n = mergeConflictMarkerLength; i < n; i++) {
+ if (text.charCodeAt(pos + i) !== ch) {
+ return false;
+ }
+ }
+ return ch === 61 /* equals */ ||
+ text.charCodeAt(pos + mergeConflictMarkerLength) === 32 /* space */;
+ }
+ }
+ return false;
+ }
+ function scanConflictMarkerTrivia(text, pos, error) {
+ if (error) {
+ error(ts.Diagnostics.Merge_conflict_marker_encountered, mergeConflictMarkerLength);
+ }
+ var ch = text.charCodeAt(pos);
+ var len = text.length;
+ if (ch === 60 /* lessThan */ || ch === 62 /* greaterThan */) {
+ while (pos < len && !isLineBreak(text.charCodeAt(pos))) {
+ pos++;
+ }
+ }
+ else {
+ ts.Debug.assert(ch === 61 /* equals */);
+ // Consume everything from the start of the mid-conlict marker to the start of the next
+ // end-conflict marker.
+ while (pos < len) {
+ var ch_1 = text.charCodeAt(pos);
+ if (ch_1 === 62 /* greaterThan */ && isConflictMarkerTrivia(text, pos)) {
+ break;
+ }
+ pos++;
+ }
+ }
+ return pos;
+ }
+ var shebangTriviaRegex = /^#!.*/;
+ function isShebangTrivia(text, pos) {
+ // Shebangs check must only be done at the start of the file
+ ts.Debug.assert(pos === 0);
+ return shebangTriviaRegex.test(text);
+ }
+ function scanShebangTrivia(text, pos) {
+ var shebang = shebangTriviaRegex.exec(text)[0];
+ pos = pos + shebang.length;
+ return pos;
+ }
+ /**
+ * Extract comments from text prefixing the token closest following `pos`.
+ * The return value is an array containing a TextRange for each comment.
+ * Single-line comment ranges include the beginning '//' characters but not the ending line break.
+ * Multi - line comment ranges include the beginning '/* and ending '<asterisk>/' characters.
+ * The return value is undefined if no comments were found.
+ * @param trailing
+ * If false, whitespace is skipped until the first line break and comments between that location
+ * and the next token are returned.
+ * If true, comments occurring between the given position and the next line break are returned.
+ */
+ function getCommentRanges(text, pos, trailing) {
+ var result;
+ var collecting = trailing || pos === 0;
+ while (true) {
+ var ch = text.charCodeAt(pos);
+ switch (ch) {
+ case 13 /* carriageReturn */:
+ if (text.charCodeAt(pos + 1) === 10 /* lineFeed */) {
+ pos++;
+ }
+ case 10 /* lineFeed */:
+ pos++;
+ if (trailing) {
+ return result;
+ }
+ collecting = true;
+ if (result && result.length) {
+ ts.lastOrUndefined(result).hasTrailingNewLine = true;
+ }
+ continue;
+ case 9 /* tab */:
+ case 11 /* verticalTab */:
+ case 12 /* formFeed */:
+ case 32 /* space */:
+ pos++;
+ continue;
+ case 47 /* slash */:
+ var nextChar = text.charCodeAt(pos + 1);
+ var hasTrailingNewLine = false;
+ if (nextChar === 47 /* slash */ || nextChar === 42 /* asterisk */) {
+ var kind = nextChar === 47 /* slash */ ? 2 /* SingleLineCommentTrivia */ : 3 /* MultiLineCommentTrivia */;
+ var startPos = pos;
+ pos += 2;
+ if (nextChar === 47 /* slash */) {
+ while (pos < text.length) {
+ if (isLineBreak(text.charCodeAt(pos))) {
+ hasTrailingNewLine = true;
+ break;
+ }
+ pos++;
+ }
+ }
+ else {
+ while (pos < text.length) {
+ if (text.charCodeAt(pos) === 42 /* asterisk */ && text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ break;
+ }
+ pos++;
+ }
+ }
+ if (collecting) {
+ if (!result) {
+ result = [];
+ }
+ result.push({ pos: startPos, end: pos, hasTrailingNewLine: hasTrailingNewLine, kind: kind });
+ }
+ continue;
+ }
+ break;
+ default:
+ if (ch > 127 /* maxAsciiCharacter */ && (isWhiteSpace(ch) || isLineBreak(ch))) {
+ if (result && result.length && isLineBreak(ch)) {
+ ts.lastOrUndefined(result).hasTrailingNewLine = true;
+ }
+ pos++;
+ continue;
+ }
+ break;
+ }
+ return result;
+ }
+ }
+ function getLeadingCommentRanges(text, pos) {
+ return getCommentRanges(text, pos, /*trailing*/ false);
+ }
+ ts.getLeadingCommentRanges = getLeadingCommentRanges;
+ function getTrailingCommentRanges(text, pos) {
+ return getCommentRanges(text, pos, /*trailing*/ true);
+ }
+ ts.getTrailingCommentRanges = getTrailingCommentRanges;
+ /** Optionally, get the shebang */
+ function getShebang(text) {
+ return shebangTriviaRegex.test(text)
+ ? shebangTriviaRegex.exec(text)[0]
+ : undefined;
+ }
+ ts.getShebang = getShebang;
+ function isIdentifierStart(ch, languageVersion) {
+ return ch >= 65 /* A */ && ch <= 90 /* Z */ || ch >= 97 /* a */ && ch <= 122 /* z */ ||
+ ch === 36 /* $ */ || ch === 95 /* _ */ ||
+ ch > 127 /* maxAsciiCharacter */ && isUnicodeIdentifierStart(ch, languageVersion);
+ }
+ ts.isIdentifierStart = isIdentifierStart;
+ function isIdentifierPart(ch, languageVersion) {
+ return ch >= 65 /* A */ && ch <= 90 /* Z */ || ch >= 97 /* a */ && ch <= 122 /* z */ ||
+ ch >= 48 /* _0 */ && ch <= 57 /* _9 */ || ch === 36 /* $ */ || ch === 95 /* _ */ ||
+ ch > 127 /* maxAsciiCharacter */ && isUnicodeIdentifierPart(ch, languageVersion);
+ }
+ ts.isIdentifierPart = isIdentifierPart;
+ // Creates a scanner over a (possibly unspecified) range of a piece of text.
+ function createScanner(languageVersion, skipTrivia, languageVariant, text, onError, start, length) {
+ if (languageVariant === void 0) { languageVariant = 0 /* Standard */; }
+ // Current position (end position of text of current token)
+ var pos;
+ // end of text
+ var end;
+ // Start position of whitespace before current token
+ var startPos;
+ // Start position of text of current token
+ var tokenPos;
+ var token;
+ var tokenValue;
+ var precedingLineBreak;
+ var hasExtendedUnicodeEscape;
+ var tokenIsUnterminated;
+ setText(text, start, length);
+ return {
+ getStartPos: function () { return startPos; },
+ getTextPos: function () { return pos; },
+ getToken: function () { return token; },
+ getTokenPos: function () { return tokenPos; },
+ getTokenText: function () { return text.substring(tokenPos, pos); },
+ getTokenValue: function () { return tokenValue; },
+ hasExtendedUnicodeEscape: function () { return hasExtendedUnicodeEscape; },
+ hasPrecedingLineBreak: function () { return precedingLineBreak; },
+ isIdentifier: function () { return token === 69 /* Identifier */ || token > 105 /* LastReservedWord */; },
+ isReservedWord: function () { return token >= 70 /* FirstReservedWord */ && token <= 105 /* LastReservedWord */; },
+ isUnterminated: function () { return tokenIsUnterminated; },
+ reScanGreaterToken: reScanGreaterToken,
+ reScanSlashToken: reScanSlashToken,
+ reScanTemplateToken: reScanTemplateToken,
+ scanJsxIdentifier: scanJsxIdentifier,
+ reScanJsxToken: reScanJsxToken,
+ scanJsxToken: scanJsxToken,
+ scan: scan,
+ setText: setText,
+ setScriptTarget: setScriptTarget,
+ setLanguageVariant: setLanguageVariant,
+ setOnError: setOnError,
+ setTextPos: setTextPos,
+ tryScan: tryScan,
+ lookAhead: lookAhead
+ };
+ function error(message, length) {
+ if (onError) {
+ onError(message, length || 0);
+ }
+ }
+ function scanNumber() {
+ var start = pos;
+ while (isDigit(text.charCodeAt(pos)))
+ pos++;
+ if (text.charCodeAt(pos) === 46 /* dot */) {
+ pos++;
+ while (isDigit(text.charCodeAt(pos)))
+ pos++;
+ }
+ var end = pos;
+ if (text.charCodeAt(pos) === 69 /* E */ || text.charCodeAt(pos) === 101 /* e */) {
+ pos++;
+ if (text.charCodeAt(pos) === 43 /* plus */ || text.charCodeAt(pos) === 45 /* minus */)
+ pos++;
+ if (isDigit(text.charCodeAt(pos))) {
+ pos++;
+ while (isDigit(text.charCodeAt(pos)))
+ pos++;
+ end = pos;
+ }
+ else {
+ error(ts.Diagnostics.Digit_expected);
+ }
+ }
+ return +(text.substring(start, end));
+ }
+ function scanOctalDigits() {
+ var start = pos;
+ while (isOctalDigit(text.charCodeAt(pos))) {
+ pos++;
+ }
+ return +(text.substring(start, pos));
+ }
+ /**
+ * Scans the given number of hexadecimal digits in the text,
+ * returning -1 if the given number is unavailable.
+ */
+ function scanExactNumberOfHexDigits(count) {
+ return scanHexDigits(/*minCount*/ count, /*scanAsManyAsPossible*/ false);
+ }
+ /**
+ * Scans as many hexadecimal digits as are available in the text,
+ * returning -1 if the given number of digits was unavailable.
+ */
+ function scanMinimumNumberOfHexDigits(count) {
+ return scanHexDigits(/*minCount*/ count, /*scanAsManyAsPossible*/ true);
+ }
+ function scanHexDigits(minCount, scanAsManyAsPossible) {
+ var digits = 0;
+ var value = 0;
+ while (digits < minCount || scanAsManyAsPossible) {
+ var ch = text.charCodeAt(pos);
+ if (ch >= 48 /* _0 */ && ch <= 57 /* _9 */) {
+ value = value * 16 + ch - 48 /* _0 */;
+ }
+ else if (ch >= 65 /* A */ && ch <= 70 /* F */) {
+ value = value * 16 + ch - 65 /* A */ + 10;
+ }
+ else if (ch >= 97 /* a */ && ch <= 102 /* f */) {
+ value = value * 16 + ch - 97 /* a */ + 10;
+ }
+ else {
+ break;
+ }
+ pos++;
+ digits++;
+ }
+ if (digits < minCount) {
+ value = -1;
+ }
+ return value;
+ }
+ function scanString() {
+ var quote = text.charCodeAt(pos++);
+ var result = "";
+ var start = pos;
+ while (true) {
+ if (pos >= end) {
+ result += text.substring(start, pos);
+ tokenIsUnterminated = true;
+ error(ts.Diagnostics.Unterminated_string_literal);
+ break;
+ }
+ var ch = text.charCodeAt(pos);
+ if (ch === quote) {
+ result += text.substring(start, pos);
+ pos++;
+ break;
+ }
+ if (ch === 92 /* backslash */) {
+ result += text.substring(start, pos);
+ result += scanEscapeSequence();
+ start = pos;
+ continue;
+ }
+ if (isLineBreak(ch)) {
+ result += text.substring(start, pos);
+ tokenIsUnterminated = true;
+ error(ts.Diagnostics.Unterminated_string_literal);
+ break;
+ }
+ pos++;
+ }
+ return result;
+ }
+ /**
+ * Sets the current 'tokenValue' and returns a NoSubstitutionTemplateLiteral or
+ * a literal component of a TemplateExpression.
+ */
+ function scanTemplateAndSetTokenValue() {
+ var startedWithBacktick = text.charCodeAt(pos) === 96 /* backtick */;
+ pos++;
+ var start = pos;
+ var contents = "";
+ var resultingToken;
+ while (true) {
+ if (pos >= end) {
+ contents += text.substring(start, pos);
+ tokenIsUnterminated = true;
+ error(ts.Diagnostics.Unterminated_template_literal);
+ resultingToken = startedWithBacktick ? 11 /* NoSubstitutionTemplateLiteral */ : 14 /* TemplateTail */;
+ break;
+ }
+ var currChar = text.charCodeAt(pos);
+ // '`'
+ if (currChar === 96 /* backtick */) {
+ contents += text.substring(start, pos);
+ pos++;
+ resultingToken = startedWithBacktick ? 11 /* NoSubstitutionTemplateLiteral */ : 14 /* TemplateTail */;
+ break;
+ }
+ // '${'
+ if (currChar === 36 /* $ */ && pos + 1 < end && text.charCodeAt(pos + 1) === 123 /* openBrace */) {
+ contents += text.substring(start, pos);
+ pos += 2;
+ resultingToken = startedWithBacktick ? 12 /* TemplateHead */ : 13 /* TemplateMiddle */;
+ break;
+ }
+ // Escape character
+ if (currChar === 92 /* backslash */) {
+ contents += text.substring(start, pos);
+ contents += scanEscapeSequence();
+ start = pos;
+ continue;
+ }
+ // Speculated ECMAScript 6 Spec 11.8.6.1:
+ // <CR><LF> and <CR> LineTerminatorSequences are normalized to <LF> for Template Values
+ if (currChar === 13 /* carriageReturn */) {
+ contents += text.substring(start, pos);
+ pos++;
+ if (pos < end && text.charCodeAt(pos) === 10 /* lineFeed */) {
+ pos++;
+ }
+ contents += "\n";
+ start = pos;
+ continue;
+ }
+ pos++;
+ }
+ ts.Debug.assert(resultingToken !== undefined);
+ tokenValue = contents;
+ return resultingToken;
+ }
+ function scanEscapeSequence() {
+ pos++;
+ if (pos >= end) {
+ error(ts.Diagnostics.Unexpected_end_of_text);
+ return "";
+ }
+ var ch = text.charCodeAt(pos++);
+ switch (ch) {
+ case 48 /* _0 */:
+ return "\0";
+ case 98 /* b */:
+ return "\b";
+ case 116 /* t */:
+ return "\t";
+ case 110 /* n */:
+ return "\n";
+ case 118 /* v */:
+ return "\v";
+ case 102 /* f */:
+ return "\f";
+ case 114 /* r */:
+ return "\r";
+ case 39 /* singleQuote */:
+ return "\'";
+ case 34 /* doubleQuote */:
+ return "\"";
+ case 117 /* u */:
+ // '\u{DDDDDDDD}'
+ if (pos < end && text.charCodeAt(pos) === 123 /* openBrace */) {
+ hasExtendedUnicodeEscape = true;
+ pos++;
+ return scanExtendedUnicodeEscape();
+ }
+ // '\uDDDD'
+ return scanHexadecimalEscape(/*numDigits*/ 4);
+ case 120 /* x */:
+ // '\xDD'
+ return scanHexadecimalEscape(/*numDigits*/ 2);
+ // when encountering a LineContinuation (i.e. a backslash and a line terminator sequence),
+ // the line terminator is interpreted to be "the empty code unit sequence".
+ case 13 /* carriageReturn */:
+ if (pos < end && text.charCodeAt(pos) === 10 /* lineFeed */) {
+ pos++;
+ }
+ // fall through
+ case 10 /* lineFeed */:
+ case 8232 /* lineSeparator */:
+ case 8233 /* paragraphSeparator */:
+ return "";
+ default:
+ return String.fromCharCode(ch);
+ }
+ }
+ function scanHexadecimalEscape(numDigits) {
+ var escapedValue = scanExactNumberOfHexDigits(numDigits);
+ if (escapedValue >= 0) {
+ return String.fromCharCode(escapedValue);
+ }
+ else {
+ error(ts.Diagnostics.Hexadecimal_digit_expected);
+ return "";
+ }
+ }
+ function scanExtendedUnicodeEscape() {
+ var escapedValue = scanMinimumNumberOfHexDigits(1);
+ var isInvalidExtendedEscape = false;
+ // Validate the value of the digit
+ if (escapedValue < 0) {
+ error(ts.Diagnostics.Hexadecimal_digit_expected);
+ isInvalidExtendedEscape = true;
+ }
+ else if (escapedValue > 0x10FFFF) {
+ error(ts.Diagnostics.An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive);
+ isInvalidExtendedEscape = true;
+ }
+ if (pos >= end) {
+ error(ts.Diagnostics.Unexpected_end_of_text);
+ isInvalidExtendedEscape = true;
+ }
+ else if (text.charCodeAt(pos) === 125 /* closeBrace */) {
+ // Only swallow the following character up if it's a '}'.
+ pos++;
+ }
+ else {
+ error(ts.Diagnostics.Unterminated_Unicode_escape_sequence);
+ isInvalidExtendedEscape = true;
+ }
+ if (isInvalidExtendedEscape) {
+ return "";
+ }
+ return utf16EncodeAsString(escapedValue);
+ }
+ // Derived from the 10.1.1 UTF16Encoding of the ES6 Spec.
+ function utf16EncodeAsString(codePoint) {
+ ts.Debug.assert(0x0 <= codePoint && codePoint <= 0x10FFFF);
+ if (codePoint <= 65535) {
+ return String.fromCharCode(codePoint);
+ }
+ var codeUnit1 = Math.floor((codePoint - 65536) / 1024) + 0xD800;
+ var codeUnit2 = ((codePoint - 65536) % 1024) + 0xDC00;
+ return String.fromCharCode(codeUnit1, codeUnit2);
+ }
+ // Current character is known to be a backslash. Check for Unicode escape of the form '\uXXXX'
+ // and return code point value if valid Unicode escape is found. Otherwise return -1.
+ function peekUnicodeEscape() {
+ if (pos + 5 < end && text.charCodeAt(pos + 1) === 117 /* u */) {
+ var start_1 = pos;
+ pos += 2;
+ var value = scanExactNumberOfHexDigits(4);
+ pos = start_1;
+ return value;
+ }
+ return -1;
+ }
+ function scanIdentifierParts() {
+ var result = "";
+ var start = pos;
+ while (pos < end) {
+ var ch = text.charCodeAt(pos);
+ if (isIdentifierPart(ch, languageVersion)) {
+ pos++;
+ }
+ else if (ch === 92 /* backslash */) {
+ ch = peekUnicodeEscape();
+ if (!(ch >= 0 && isIdentifierPart(ch, languageVersion))) {
+ break;
+ }
+ result += text.substring(start, pos);
+ result += String.fromCharCode(ch);
+ // Valid Unicode escape is always six characters
+ pos += 6;
+ start = pos;
+ }
+ else {
+ break;
+ }
+ }
+ result += text.substring(start, pos);
+ return result;
+ }
+ function getIdentifierToken() {
+ // Reserved words are between 2 and 11 characters long and start with a lowercase letter
+ var len = tokenValue.length;
+ if (len >= 2 && len <= 11) {
+ var ch = tokenValue.charCodeAt(0);
+ if (ch >= 97 /* a */ && ch <= 122 /* z */ && hasOwnProperty.call(textToToken, tokenValue)) {
+ return token = textToToken[tokenValue];
+ }
+ }
+ return token = 69 /* Identifier */;
+ }
+ function scanBinaryOrOctalDigits(base) {
+ ts.Debug.assert(base !== 2 || base !== 8, "Expected either base 2 or base 8");
+ var value = 0;
+ // For counting number of digits; Valid binaryIntegerLiteral must have at least one binary digit following B or b.
+ // Similarly valid octalIntegerLiteral must have at least one octal digit following o or O.
+ var numberOfDigits = 0;
+ while (true) {
+ var ch = text.charCodeAt(pos);
+ var valueOfCh = ch - 48 /* _0 */;
+ if (!isDigit(ch) || valueOfCh >= base) {
+ break;
+ }
+ value = value * base + valueOfCh;
+ pos++;
+ numberOfDigits++;
+ }
+ // Invalid binaryIntegerLiteral or octalIntegerLiteral
+ if (numberOfDigits === 0) {
+ return -1;
+ }
+ return value;
+ }
+ function scan() {
+ startPos = pos;
+ hasExtendedUnicodeEscape = false;
+ precedingLineBreak = false;
+ tokenIsUnterminated = false;
+ while (true) {
+ tokenPos = pos;
+ if (pos >= end) {
+ return token = 1 /* EndOfFileToken */;
+ }
+ var ch = text.charCodeAt(pos);
+ // Special handling for shebang
+ if (ch === 35 /* hash */ && pos === 0 && isShebangTrivia(text, pos)) {
+ pos = scanShebangTrivia(text, pos);
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ return token = 6 /* ShebangTrivia */;
+ }
+ }
+ switch (ch) {
+ case 10 /* lineFeed */:
+ case 13 /* carriageReturn */:
+ precedingLineBreak = true;
+ if (skipTrivia) {
+ pos++;
+ continue;
+ }
+ else {
+ if (ch === 13 /* carriageReturn */ && pos + 1 < end && text.charCodeAt(pos + 1) === 10 /* lineFeed */) {
+ // consume both CR and LF
+ pos += 2;
+ }
+ else {
+ pos++;
+ }
+ return token = 4 /* NewLineTrivia */;
+ }
+ case 9 /* tab */:
+ case 11 /* verticalTab */:
+ case 12 /* formFeed */:
+ case 32 /* space */:
+ if (skipTrivia) {
+ pos++;
+ continue;
+ }
+ else {
+ while (pos < end && isWhiteSpace(text.charCodeAt(pos))) {
+ pos++;
+ }
+ return token = 5 /* WhitespaceTrivia */;
+ }
+ case 33 /* exclamation */:
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ if (text.charCodeAt(pos + 2) === 61 /* equals */) {
+ return pos += 3, token = 33 /* ExclamationEqualsEqualsToken */;
+ }
+ return pos += 2, token = 31 /* ExclamationEqualsToken */;
+ }
+ return pos++, token = 49 /* ExclamationToken */;
+ case 34 /* doubleQuote */:
+ case 39 /* singleQuote */:
+ tokenValue = scanString();
+ return token = 9 /* StringLiteral */;
+ case 96 /* backtick */:
+ return token = scanTemplateAndSetTokenValue();
+ case 37 /* percent */:
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 62 /* PercentEqualsToken */;
+ }
+ return pos++, token = 40 /* PercentToken */;
+ case 38 /* ampersand */:
+ if (text.charCodeAt(pos + 1) === 38 /* ampersand */) {
+ return pos += 2, token = 51 /* AmpersandAmpersandToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 66 /* AmpersandEqualsToken */;
+ }
+ return pos++, token = 46 /* AmpersandToken */;
+ case 40 /* openParen */:
+ return pos++, token = 17 /* OpenParenToken */;
+ case 41 /* closeParen */:
+ return pos++, token = 18 /* CloseParenToken */;
+ case 42 /* asterisk */:
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 59 /* AsteriskEqualsToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 42 /* asterisk */) {
+ if (text.charCodeAt(pos + 2) === 61 /* equals */) {
+ return pos += 3, token = 60 /* AsteriskAsteriskEqualsToken */;
+ }
+ return pos += 2, token = 38 /* AsteriskAsteriskToken */;
+ }
+ return pos++, token = 37 /* AsteriskToken */;
+ case 43 /* plus */:
+ if (text.charCodeAt(pos + 1) === 43 /* plus */) {
+ return pos += 2, token = 41 /* PlusPlusToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 57 /* PlusEqualsToken */;
+ }
+ return pos++, token = 35 /* PlusToken */;
+ case 44 /* comma */:
+ return pos++, token = 24 /* CommaToken */;
+ case 45 /* minus */:
+ if (text.charCodeAt(pos + 1) === 45 /* minus */) {
+ return pos += 2, token = 42 /* MinusMinusToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 58 /* MinusEqualsToken */;
+ }
+ return pos++, token = 36 /* MinusToken */;
+ case 46 /* dot */:
+ if (isDigit(text.charCodeAt(pos + 1))) {
+ tokenValue = "" + scanNumber();
+ return token = 8 /* NumericLiteral */;
+ }
+ if (text.charCodeAt(pos + 1) === 46 /* dot */ && text.charCodeAt(pos + 2) === 46 /* dot */) {
+ return pos += 3, token = 22 /* DotDotDotToken */;
+ }
+ return pos++, token = 21 /* DotToken */;
+ case 47 /* slash */:
+ // Single-line comment
+ if (text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ while (pos < end) {
+ if (isLineBreak(text.charCodeAt(pos))) {
+ break;
+ }
+ pos++;
+ }
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ return token = 2 /* SingleLineCommentTrivia */;
+ }
+ }
+ // Multi-line comment
+ if (text.charCodeAt(pos + 1) === 42 /* asterisk */) {
+ pos += 2;
+ var commentClosed = false;
+ while (pos < end) {
+ var ch_2 = text.charCodeAt(pos);
+ if (ch_2 === 42 /* asterisk */ && text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ commentClosed = true;
+ break;
+ }
+ if (isLineBreak(ch_2)) {
+ precedingLineBreak = true;
+ }
+ pos++;
+ }
+ if (!commentClosed) {
+ error(ts.Diagnostics.Asterisk_Slash_expected);
+ }
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ tokenIsUnterminated = !commentClosed;
+ return token = 3 /* MultiLineCommentTrivia */;
+ }
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 61 /* SlashEqualsToken */;
+ }
+ return pos++, token = 39 /* SlashToken */;
+ case 48 /* _0 */:
+ if (pos + 2 < end && (text.charCodeAt(pos + 1) === 88 /* X */ || text.charCodeAt(pos + 1) === 120 /* x */)) {
+ pos += 2;
+ var value = scanMinimumNumberOfHexDigits(1);
+ if (value < 0) {
+ error(ts.Diagnostics.Hexadecimal_digit_expected);
+ value = 0;
+ }
+ tokenValue = "" + value;
+ return token = 8 /* NumericLiteral */;
+ }
+ else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 66 /* B */ || text.charCodeAt(pos + 1) === 98 /* b */)) {
+ pos += 2;
+ var value = scanBinaryOrOctalDigits(/* base */ 2);
+ if (value < 0) {
+ error(ts.Diagnostics.Binary_digit_expected);
+ value = 0;
+ }
+ tokenValue = "" + value;
+ return token = 8 /* NumericLiteral */;
+ }
+ else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 79 /* O */ || text.charCodeAt(pos + 1) === 111 /* o */)) {
+ pos += 2;
+ var value = scanBinaryOrOctalDigits(/* base */ 8);
+ if (value < 0) {
+ error(ts.Diagnostics.Octal_digit_expected);
+ value = 0;
+ }
+ tokenValue = "" + value;
+ return token = 8 /* NumericLiteral */;
+ }
+ // Try to parse as an octal
+ if (pos + 1 < end && isOctalDigit(text.charCodeAt(pos + 1))) {
+ tokenValue = "" + scanOctalDigits();
+ return token = 8 /* NumericLiteral */;
+ }
+ // This fall-through is a deviation from the EcmaScript grammar. The grammar says that a leading zero
+ // can only be followed by an octal digit, a dot, or the end of the number literal. However, we are being
+ // permissive and allowing decimal digits of the form 08* and 09* (which many browsers also do).
+ case 49 /* _1 */:
+ case 50 /* _2 */:
+ case 51 /* _3 */:
+ case 52 /* _4 */:
+ case 53 /* _5 */:
+ case 54 /* _6 */:
+ case 55 /* _7 */:
+ case 56 /* _8 */:
+ case 57 /* _9 */:
+ tokenValue = "" + scanNumber();
+ return token = 8 /* NumericLiteral */;
+ case 58 /* colon */:
+ return pos++, token = 54 /* ColonToken */;
+ case 59 /* semicolon */:
+ return pos++, token = 23 /* SemicolonToken */;
+ case 60 /* lessThan */:
+ if (isConflictMarkerTrivia(text, pos)) {
+ pos = scanConflictMarkerTrivia(text, pos, error);
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ return token = 7 /* ConflictMarkerTrivia */;
+ }
+ }
+ if (text.charCodeAt(pos + 1) === 60 /* lessThan */) {
+ if (text.charCodeAt(pos + 2) === 61 /* equals */) {
+ return pos += 3, token = 63 /* LessThanLessThanEqualsToken */;
+ }
+ return pos += 2, token = 43 /* LessThanLessThanToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 28 /* LessThanEqualsToken */;
+ }
+ if (languageVariant === 1 /* JSX */ &&
+ text.charCodeAt(pos + 1) === 47 /* slash */ &&
+ text.charCodeAt(pos + 2) !== 42 /* asterisk */) {
+ return pos += 2, token = 26 /* LessThanSlashToken */;
+ }
+ return pos++, token = 25 /* LessThanToken */;
+ case 61 /* equals */:
+ if (isConflictMarkerTrivia(text, pos)) {
+ pos = scanConflictMarkerTrivia(text, pos, error);
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ return token = 7 /* ConflictMarkerTrivia */;
+ }
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ if (text.charCodeAt(pos + 2) === 61 /* equals */) {
+ return pos += 3, token = 32 /* EqualsEqualsEqualsToken */;
+ }
+ return pos += 2, token = 30 /* EqualsEqualsToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 62 /* greaterThan */) {
+ return pos += 2, token = 34 /* EqualsGreaterThanToken */;
+ }
+ return pos++, token = 56 /* EqualsToken */;
+ case 62 /* greaterThan */:
+ if (isConflictMarkerTrivia(text, pos)) {
+ pos = scanConflictMarkerTrivia(text, pos, error);
+ if (skipTrivia) {
+ continue;
+ }
+ else {
+ return token = 7 /* ConflictMarkerTrivia */;
+ }
+ }
+ return pos++, token = 27 /* GreaterThanToken */;
+ case 63 /* question */:
+ return pos++, token = 53 /* QuestionToken */;
+ case 91 /* openBracket */:
+ return pos++, token = 19 /* OpenBracketToken */;
+ case 93 /* closeBracket */:
+ return pos++, token = 20 /* CloseBracketToken */;
+ case 94 /* caret */:
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 68 /* CaretEqualsToken */;
+ }
+ return pos++, token = 48 /* CaretToken */;
+ case 123 /* openBrace */:
+ return pos++, token = 15 /* OpenBraceToken */;
+ case 124 /* bar */:
+ if (text.charCodeAt(pos + 1) === 124 /* bar */) {
+ return pos += 2, token = 52 /* BarBarToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 67 /* BarEqualsToken */;
+ }
+ return pos++, token = 47 /* BarToken */;
+ case 125 /* closeBrace */:
+ return pos++, token = 16 /* CloseBraceToken */;
+ case 126 /* tilde */:
+ return pos++, token = 50 /* TildeToken */;
+ case 64 /* at */:
+ return pos++, token = 55 /* AtToken */;
+ case 92 /* backslash */:
+ var cookedChar = peekUnicodeEscape();
+ if (cookedChar >= 0 && isIdentifierStart(cookedChar, languageVersion)) {
+ pos += 6;
+ tokenValue = String.fromCharCode(cookedChar) + scanIdentifierParts();
+ return token = getIdentifierToken();
+ }
+ error(ts.Diagnostics.Invalid_character);
+ return pos++, token = 0 /* Unknown */;
+ default:
+ if (isIdentifierStart(ch, languageVersion)) {
+ pos++;
+ while (pos < end && isIdentifierPart(ch = text.charCodeAt(pos), languageVersion))
+ pos++;
+ tokenValue = text.substring(tokenPos, pos);
+ if (ch === 92 /* backslash */) {
+ tokenValue += scanIdentifierParts();
+ }
+ return token = getIdentifierToken();
+ }
+ else if (isWhiteSpace(ch)) {
+ pos++;
+ continue;
+ }
+ else if (isLineBreak(ch)) {
+ precedingLineBreak = true;
+ pos++;
+ continue;
+ }
+ error(ts.Diagnostics.Invalid_character);
+ return pos++, token = 0 /* Unknown */;
+ }
+ }
+ }
+ function reScanGreaterToken() {
+ if (token === 27 /* GreaterThanToken */) {
+ if (text.charCodeAt(pos) === 62 /* greaterThan */) {
+ if (text.charCodeAt(pos + 1) === 62 /* greaterThan */) {
+ if (text.charCodeAt(pos + 2) === 61 /* equals */) {
+ return pos += 3, token = 65 /* GreaterThanGreaterThanGreaterThanEqualsToken */;
+ }
+ return pos += 2, token = 45 /* GreaterThanGreaterThanGreaterThanToken */;
+ }
+ if (text.charCodeAt(pos + 1) === 61 /* equals */) {
+ return pos += 2, token = 64 /* GreaterThanGreaterThanEqualsToken */;
+ }
+ return pos++, token = 44 /* GreaterThanGreaterThanToken */;
+ }
+ if (text.charCodeAt(pos) === 61 /* equals */) {
+ return pos++, token = 29 /* GreaterThanEqualsToken */;
+ }
+ }
+ return token;
+ }
+ function reScanSlashToken() {
+ if (token === 39 /* SlashToken */ || token === 61 /* SlashEqualsToken */) {
+ var p = tokenPos + 1;
+ var inEscape = false;
+ var inCharacterClass = false;
+ while (true) {
+ // If we reach the end of a file, or hit a newline, then this is an unterminated
+ // regex. Report error and return what we have so far.
+ if (p >= end) {
+ tokenIsUnterminated = true;
+ error(ts.Diagnostics.Unterminated_regular_expression_literal);
+ break;
+ }
+ var ch = text.charCodeAt(p);
+ if (isLineBreak(ch)) {
+ tokenIsUnterminated = true;
+ error(ts.Diagnostics.Unterminated_regular_expression_literal);
+ break;
+ }
+ if (inEscape) {
+ // Parsing an escape character;
+ // reset the flag and just advance to the next char.
+ inEscape = false;
+ }
+ else if (ch === 47 /* slash */ && !inCharacterClass) {
+ // A slash within a character class is permissible,
+ // but in general it signals the end of the regexp literal.
+ p++;
+ break;
+ }
+ else if (ch === 91 /* openBracket */) {
+ inCharacterClass = true;
+ }
+ else if (ch === 92 /* backslash */) {
+ inEscape = true;
+ }
+ else if (ch === 93 /* closeBracket */) {
+ inCharacterClass = false;
+ }
+ p++;
+ }
+ while (p < end && isIdentifierPart(text.charCodeAt(p), languageVersion)) {
+ p++;
+ }
+ pos = p;
+ tokenValue = text.substring(tokenPos, pos);
+ token = 10 /* RegularExpressionLiteral */;
+ }
+ return token;
+ }
+ /**
+ * Unconditionally back up and scan a template expression portion.
+ */
+ function reScanTemplateToken() {
+ ts.Debug.assert(token === 16 /* CloseBraceToken */, "'reScanTemplateToken' should only be called on a '}'");
+ pos = tokenPos;
+ return token = scanTemplateAndSetTokenValue();
+ }
+ function reScanJsxToken() {
+ pos = tokenPos = startPos;
+ return token = scanJsxToken();
+ }
+ function scanJsxToken() {
+ startPos = tokenPos = pos;
+ if (pos >= end) {
+ return token = 1 /* EndOfFileToken */;
+ }
+ var char = text.charCodeAt(pos);
+ if (char === 60 /* lessThan */) {
+ if (text.charCodeAt(pos + 1) === 47 /* slash */) {
+ pos += 2;
+ return token = 26 /* LessThanSlashToken */;
+ }
+ pos++;
+ return token = 25 /* LessThanToken */;
+ }
+ if (char === 123 /* openBrace */) {
+ pos++;
+ return token = 15 /* OpenBraceToken */;
+ }
+ while (pos < end) {
+ pos++;
+ char = text.charCodeAt(pos);
+ if ((char === 123 /* openBrace */) || (char === 60 /* lessThan */)) {
+ break;
+ }
+ }
+ return token = 236 /* JsxText */;
+ }
+ // Scans a JSX identifier; these differ from normal identifiers in that
+ // they allow dashes
+ function scanJsxIdentifier() {
+ if (tokenIsIdentifierOrKeyword(token)) {
+ var firstCharPosition = pos;
+ while (pos < end) {
+ var ch = text.charCodeAt(pos);
+ if (ch === 45 /* minus */ || ((firstCharPosition === pos) ? isIdentifierStart(ch, languageVersion) : isIdentifierPart(ch, languageVersion))) {
+ pos++;
+ }
+ else {
+ break;
+ }
+ }
+ tokenValue += text.substr(firstCharPosition, pos - firstCharPosition);
+ }
+ return token;
+ }
+ function speculationHelper(callback, isLookahead) {
+ var savePos = pos;
+ var saveStartPos = startPos;
+ var saveTokenPos = tokenPos;
+ var saveToken = token;
+ var saveTokenValue = tokenValue;
+ var savePrecedingLineBreak = precedingLineBreak;
+ var result = callback();
+ // If our callback returned something 'falsy' or we're just looking ahead,
+ // then unconditionally restore us to where we were.
+ if (!result || isLookahead) {
+ pos = savePos;
+ startPos = saveStartPos;
+ tokenPos = saveTokenPos;
+ token = saveToken;
+ tokenValue = saveTokenValue;
+ precedingLineBreak = savePrecedingLineBreak;
+ }
+ return result;
+ }
+ function lookAhead(callback) {
+ return speculationHelper(callback, /*isLookahead:*/ true);
+ }
+ function tryScan(callback) {
+ return speculationHelper(callback, /*isLookahead:*/ false);
+ }
+ function setText(newText, start, length) {
+ text = newText || "";
+ end = length === undefined ? text.length : start + length;
+ setTextPos(start || 0);
+ }
+ function setOnError(errorCallback) {
+ onError = errorCallback;
+ }
+ function setScriptTarget(scriptTarget) {
+ languageVersion = scriptTarget;
+ }
+ function setLanguageVariant(variant) {
+ languageVariant = variant;
+ }
+ function setTextPos(textPos) {
+ ts.Debug.assert(textPos >= 0);
+ pos = textPos;
+ startPos = textPos;
+ tokenPos = textPos;
+ token = 0 /* Unknown */;
+ precedingLineBreak = false;
+ tokenValue = undefined;
+ hasExtendedUnicodeEscape = false;
+ tokenIsUnterminated = false;
+ }
+ }
+ ts.createScanner = createScanner;
+})(ts || (ts = {}));
+/// <reference path="parser.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ ts.bindTime = 0;
+ (function (ModuleInstanceState) {
+ ModuleInstanceState[ModuleInstanceState["NonInstantiated"] = 0] = "NonInstantiated";
+ ModuleInstanceState[ModuleInstanceState["Instantiated"] = 1] = "Instantiated";
+ ModuleInstanceState[ModuleInstanceState["ConstEnumOnly"] = 2] = "ConstEnumOnly";
+ })(ts.ModuleInstanceState || (ts.ModuleInstanceState = {}));
+ var ModuleInstanceState = ts.ModuleInstanceState;
+ function getModuleInstanceState(node) {
+ // A module is uninstantiated if it contains only
+ // 1. interface declarations, type alias declarations
+ if (node.kind === 215 /* InterfaceDeclaration */ || node.kind === 216 /* TypeAliasDeclaration */) {
+ return 0 /* NonInstantiated */;
+ }
+ else if (ts.isConstEnumDeclaration(node)) {
+ return 2 /* ConstEnumOnly */;
+ }
+ else if ((node.kind === 222 /* ImportDeclaration */ || node.kind === 221 /* ImportEqualsDeclaration */) && !(node.flags & 1 /* Export */)) {
+ return 0 /* NonInstantiated */;
+ }
+ else if (node.kind === 219 /* ModuleBlock */) {
+ var state = 0 /* NonInstantiated */;
+ ts.forEachChild(node, function (n) {
+ switch (getModuleInstanceState(n)) {
+ case 0 /* NonInstantiated */:
+ // child is non-instantiated - continue searching
+ return false;
+ case 2 /* ConstEnumOnly */:
+ // child is const enum only - record state and continue searching
+ state = 2 /* ConstEnumOnly */;
+ return false;
+ case 1 /* Instantiated */:
+ // child is instantiated - record state and stop
+ state = 1 /* Instantiated */;
+ return true;
+ }
+ });
+ return state;
+ }
+ else if (node.kind === 218 /* ModuleDeclaration */) {
+ return getModuleInstanceState(node.body);
+ }
+ else {
+ return 1 /* Instantiated */;
+ }
+ }
+ ts.getModuleInstanceState = getModuleInstanceState;
+ var ContainerFlags;
+ (function (ContainerFlags) {
+ // The current node is not a container, and no container manipulation should happen before
+ // recursing into it.
+ ContainerFlags[ContainerFlags["None"] = 0] = "None";
+ // The current node is a container. It should be set as the current container (and block-
+ // container) before recursing into it. The current node does not have locals. Examples:
+ //
+ // Classes, ObjectLiterals, TypeLiterals, Interfaces...
+ ContainerFlags[ContainerFlags["IsContainer"] = 1] = "IsContainer";
+ // The current node is a block-scoped-container. It should be set as the current block-
+ // container before recursing into it. Examples:
+ //
+ // Blocks (when not parented by functions), Catch clauses, For/For-in/For-of statements...
+ ContainerFlags[ContainerFlags["IsBlockScopedContainer"] = 2] = "IsBlockScopedContainer";
+ ContainerFlags[ContainerFlags["HasLocals"] = 4] = "HasLocals";
+ // If the current node is a container that also container that also contains locals. Examples:
+ //
+ // Functions, Methods, Modules, Source-files.
+ ContainerFlags[ContainerFlags["IsContainerWithLocals"] = 5] = "IsContainerWithLocals";
+ })(ContainerFlags || (ContainerFlags = {}));
+ function bindSourceFile(file) {
+ var start = new Date().getTime();
+ bindSourceFileWorker(file);
+ ts.bindTime += new Date().getTime() - start;
+ }
+ ts.bindSourceFile = bindSourceFile;
+ function bindSourceFileWorker(file) {
+ var parent;
+ var container;
+ var blockScopeContainer;
+ var lastContainer;
+ var seenThisKeyword;
+ // If this file is an external module, then it is automatically in strict-mode according to
+ // ES6. If it is not an external module, then we'll determine if it is in strict mode or
+ // not depending on if we see "use strict" in certain places (or if we hit a class/namespace).
+ var inStrictMode = !!file.externalModuleIndicator;
+ var symbolCount = 0;
+ var Symbol = ts.objectAllocator.getSymbolConstructor();
+ var classifiableNames = {};
+ if (!file.locals) {
+ bind(file);
+ file.symbolCount = symbolCount;
+ file.classifiableNames = classifiableNames;
+ }
+ return;
+ function createSymbol(flags, name) {
+ symbolCount++;
+ return new Symbol(flags, name);
+ }
+ function addDeclarationToSymbol(symbol, node, symbolFlags) {
+ symbol.flags |= symbolFlags;
+ node.symbol = symbol;
+ if (!symbol.declarations) {
+ symbol.declarations = [];
+ }
+ symbol.declarations.push(node);
+ if (symbolFlags & 1952 /* HasExports */ && !symbol.exports) {
+ symbol.exports = {};
+ }
+ if (symbolFlags & 6240 /* HasMembers */ && !symbol.members) {
+ symbol.members = {};
+ }
+ if (symbolFlags & 107455 /* Value */ && !symbol.valueDeclaration) {
+ symbol.valueDeclaration = node;
+ }
+ }
+ // Should not be called on a declaration with a computed property name,
+ // unless it is a well known Symbol.
+ function getDeclarationName(node) {
+ if (node.name) {
+ if (node.kind === 218 /* ModuleDeclaration */ && node.name.kind === 9 /* StringLiteral */) {
+ return "\"" + node.name.text + "\"";
+ }
+ if (node.name.kind === 136 /* ComputedPropertyName */) {
+ var nameExpression = node.name.expression;
+ ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
+ return ts.getPropertyNameForKnownSymbolName(nameExpression.name.text);
+ }
+ return node.name.text;
+ }
+ switch (node.kind) {
+ case 144 /* Constructor */:
+ return "__constructor";
+ case 152 /* FunctionType */:
+ case 147 /* CallSignature */:
+ return "__call";
+ case 153 /* ConstructorType */:
+ case 148 /* ConstructSignature */:
+ return "__new";
+ case 149 /* IndexSignature */:
+ return "__index";
+ case 228 /* ExportDeclaration */:
+ return "__export";
+ case 227 /* ExportAssignment */:
+ return node.isExportEquals ? "export=" : "default";
+ case 213 /* FunctionDeclaration */:
+ case 214 /* ClassDeclaration */:
+ return node.flags & 1024 /* Default */ ? "default" : undefined;
+ }
+ }
+ function getDisplayName(node) {
+ return node.name ? ts.declarationNameToString(node.name) : getDeclarationName(node);
+ }
+ /**
+ * Declares a Symbol for the node and adds it to symbols. Reports errors for conflicting identifier names.
+ * @param symbolTable - The symbol table which node will be added to.
+ * @param parent - node's parent declaration.
+ * @param node - The declaration to be added to the symbol table
+ * @param includes - The SymbolFlags that node has in addition to its declaration type (eg: export, ambient, etc.)
+ * @param excludes - The flags which node cannot be declared alongside in a symbol table. Used to report forbidden declarations.
+ */
+ function declareSymbol(symbolTable, parent, node, includes, excludes) {
+ ts.Debug.assert(!ts.hasDynamicName(node));
+ var isDefaultExport = node.flags & 1024 /* Default */;
+ // The exported symbol for an export default function/class node is always named "default"
+ var name = isDefaultExport && parent ? "default" : getDeclarationName(node);
+ var symbol;
+ if (name !== undefined) {
+ // Check and see if the symbol table already has a symbol with this name. If not,
+ // create a new symbol with this name and add it to the table. Note that we don't
+ // give the new symbol any flags *yet*. This ensures that it will not conflict
+ // with the 'excludes' flags we pass in.
+ //
+ // If we do get an existing symbol, see if it conflicts with the new symbol we're
+ // creating. For example, a 'var' symbol and a 'class' symbol will conflict within
+ // the same symbol table. If we have a conflict, report the issue on each
+ // declaration we have for this symbol, and then create a new symbol for this
+ // declaration.
+ //
+ // If we created a new symbol, either because we didn't have a symbol with this name
+ // in the symbol table, or we conflicted with an existing symbol, then just add this
+ // node as the sole declaration of the new symbol.
+ //
+ // Otherwise, we'll be merging into a compatible existing symbol (for example when
+ // you have multiple 'vars' with the same name in the same container). In this case
+ // just add this node into the declarations list of the symbol.
+ symbol = ts.hasProperty(symbolTable, name)
+ ? symbolTable[name]
+ : (symbolTable[name] = createSymbol(0 /* None */, name));
+ if (name && (includes & 788448 /* Classifiable */)) {
+ classifiableNames[name] = name;
+ }
+ if (symbol.flags & excludes) {
+ if (node.name) {
+ node.name.parent = node;
+ }
+ // Report errors every position with duplicate declaration
+ // Report errors on previous encountered declarations
+ var message = symbol.flags & 2 /* BlockScopedVariable */
+ ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0
+ : ts.Diagnostics.Duplicate_identifier_0;
+ ts.forEach(symbol.declarations, function (declaration) {
+ if (declaration.flags & 1024 /* Default */) {
+ message = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
+ }
+ });
+ ts.forEach(symbol.declarations, function (declaration) {
+ file.bindDiagnostics.push(ts.createDiagnosticForNode(declaration.name || declaration, message, getDisplayName(declaration)));
+ });
+ file.bindDiagnostics.push(ts.createDiagnosticForNode(node.name || node, message, getDisplayName(node)));
+ symbol = createSymbol(0 /* None */, name);
+ }
+ }
+ else {
+ symbol = createSymbol(0 /* None */, "__missing");
+ }
+ addDeclarationToSymbol(symbol, node, includes);
+ symbol.parent = parent;
+ return symbol;
+ }
+ function declareModuleMember(node, symbolFlags, symbolExcludes) {
+ var hasExportModifier = ts.getCombinedNodeFlags(node) & 1 /* Export */;
+ if (symbolFlags & 8388608 /* Alias */) {
+ if (node.kind === 230 /* ExportSpecifier */ || (node.kind === 221 /* ImportEqualsDeclaration */ && hasExportModifier)) {
+ return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+ }
+ else {
+ return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+ }
+ }
+ else {
+ // Exported module members are given 2 symbols: A local symbol that is classified with an ExportValue,
+ // ExportType, or ExportContainer flag, and an associated export symbol with all the correct flags set
+ // on it. There are 2 main reasons:
+ //
+ // 1. We treat locals and exports of the same name as mutually exclusive within a container.
+ // That means the binder will issue a Duplicate Identifier error if you mix locals and exports
+ // with the same name in the same container.
+ // TODO: Make this a more specific error and decouple it from the exclusion logic.
+ // 2. When we checkIdentifier in the checker, we set its resolved symbol to the local symbol,
+ // but return the export symbol (by calling getExportSymbolOfValueSymbolIfExported). That way
+ // when the emitter comes back to it, it knows not to qualify the name if it was found in a containing scope.
+ if (hasExportModifier || container.flags & 262144 /* ExportContext */) {
+ var exportKind = (symbolFlags & 107455 /* Value */ ? 1048576 /* ExportValue */ : 0) |
+ (symbolFlags & 793056 /* Type */ ? 2097152 /* ExportType */ : 0) |
+ (symbolFlags & 1536 /* Namespace */ ? 4194304 /* ExportNamespace */ : 0);
+ var local = declareSymbol(container.locals, undefined, node, exportKind, symbolExcludes);
+ local.exportSymbol = declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+ node.localSymbol = local;
+ return local;
+ }
+ else {
+ return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+ }
+ }
+ }
+ // All container nodes are kept on a linked list in declaration order. This list is used by
+ // the getLocalNameOfContainer function in the type checker to validate that the local name
+ // used for a container is unique.
+ function bindChildren(node) {
+ // Before we recurse into a node's chilren, we first save the existing parent, container
+ // and block-container. Then after we pop out of processing the children, we restore
+ // these saved values.
+ var saveParent = parent;
+ var saveContainer = container;
+ var savedBlockScopeContainer = blockScopeContainer;
+ // This node will now be set as the parent of all of its children as we recurse into them.
+ parent = node;
+ // Depending on what kind of node this is, we may have to adjust the current container
+ // and block-container. If the current node is a container, then it is automatically
+ // considered the current block-container as well. Also, for containers that we know
+ // may contain locals, we proactively initialize the .locals field. We do this because
+ // it's highly likely that the .locals will be needed to place some child in (for example,
+ // a parameter, or variable declaration).
+ //
+ // However, we do not proactively create the .locals for block-containers because it's
+ // totally normal and common for block-containers to never actually have a block-scoped
+ // variable in them. We don't want to end up allocating an object for every 'block' we
+ // run into when most of them won't be necessary.
+ //
+ // Finally, if this is a block-container, then we clear out any existing .locals object
+ // it may contain within it. This happens in incremental scenarios. Because we can be
+ // reusing a node from a previous compilation, that node may have had 'locals' created
+ // for it. We must clear this so we don't accidently move any stale data forward from
+ // a previous compilation.
+ var containerFlags = getContainerFlags(node);
+ if (containerFlags & 1 /* IsContainer */) {
+ container = blockScopeContainer = node;
+ if (containerFlags & 4 /* HasLocals */) {
+ container.locals = {};
+ }
+ addToContainerChain(container);
+ }
+ else if (containerFlags & 2 /* IsBlockScopedContainer */) {
+ blockScopeContainer = node;
+ blockScopeContainer.locals = undefined;
+ }
+ if (node.kind === 215 /* InterfaceDeclaration */) {
+ seenThisKeyword = false;
+ ts.forEachChild(node, bind);
+ node.flags = seenThisKeyword ? node.flags | 524288 /* ContainsThis */ : node.flags & ~524288 /* ContainsThis */;
+ }
+ else {
+ ts.forEachChild(node, bind);
+ }
+ container = saveContainer;
+ parent = saveParent;
+ blockScopeContainer = savedBlockScopeContainer;
+ }
+ function getContainerFlags(node) {
+ switch (node.kind) {
+ case 186 /* ClassExpression */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 155 /* TypeLiteral */:
+ case 165 /* ObjectLiteralExpression */:
+ return 1 /* IsContainer */;
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 213 /* FunctionDeclaration */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 218 /* ModuleDeclaration */:
+ case 248 /* SourceFile */:
+ case 216 /* TypeAliasDeclaration */:
+ return 5 /* IsContainerWithLocals */;
+ case 244 /* CatchClause */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 220 /* CaseBlock */:
+ return 2 /* IsBlockScopedContainer */;
+ case 192 /* Block */:
+ // do not treat blocks directly inside a function as a block-scoped-container.
+ // Locals that reside in this block should go to the function locals. Othewise 'x'
+ // would not appear to be a redeclaration of a block scoped local in the following
+ // example:
+ //
+ // function foo() {
+ // var x;
+ // let x;
+ // }
+ //
+ // If we placed 'var x' into the function locals and 'let x' into the locals of
+ // the block, then there would be no collision.
+ //
+ // By not creating a new block-scoped-container here, we ensure that both 'var x'
+ // and 'let x' go into the Function-container's locals, and we do get a collision
+ // conflict.
+ return ts.isFunctionLike(node.parent) ? 0 /* None */ : 2 /* IsBlockScopedContainer */;
+ }
+ return 0 /* None */;
+ }
+ function addToContainerChain(next) {
+ if (lastContainer) {
+ lastContainer.nextContainer = next;
+ }
+ lastContainer = next;
+ }
+ function declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes) {
+ // Just call this directly so that the return type of this function stays "void".
+ declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes);
+ }
+ function declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes) {
+ switch (container.kind) {
+ // Modules, source files, and classes need specialized handling for how their
+ // members are declared (for example, a member of a class will go into a specific
+ // symbol table depending on if it is static or not). We defer to specialized
+ // handlers to take care of declaring these child members.
+ case 218 /* ModuleDeclaration */:
+ return declareModuleMember(node, symbolFlags, symbolExcludes);
+ case 248 /* SourceFile */:
+ return declareSourceFileMember(node, symbolFlags, symbolExcludes);
+ case 186 /* ClassExpression */:
+ case 214 /* ClassDeclaration */:
+ return declareClassMember(node, symbolFlags, symbolExcludes);
+ case 217 /* EnumDeclaration */:
+ return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
+ case 155 /* TypeLiteral */:
+ case 165 /* ObjectLiteralExpression */:
+ case 215 /* InterfaceDeclaration */:
+ // Interface/Object-types always have their children added to the 'members' of
+ // their container. They are only accessible through an instance of their
+ // container, and are never in scope otherwise (even inside the body of the
+ // object / type / interface declaring them). An exception is type parameters,
+ // which are in scope without qualification (similar to 'locals').
+ return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 216 /* TypeAliasDeclaration */:
+ // All the children of these container types are never visible through another
+ // symbol (i.e. through another symbol's 'exports' or 'members'). Instead,
+ // they're only accessed 'lexically' (i.e. from code that exists underneath
+ // their container in the tree. To accomplish this, we simply add their declared
+ // symbol to the 'locals' of the container. These symbols can then be found as
+ // the type checker walks up the containers, checking them for matching names.
+ return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
+ }
+ }
+ function declareClassMember(node, symbolFlags, symbolExcludes) {
+ return node.flags & 128 /* Static */
+ ? declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes)
+ : declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
+ }
+ function declareSourceFileMember(node, symbolFlags, symbolExcludes) {
+ return ts.isExternalModule(file)
+ ? declareModuleMember(node, symbolFlags, symbolExcludes)
+ : declareSymbol(file.locals, undefined, node, symbolFlags, symbolExcludes);
+ }
+ function isAmbientContext(node) {
+ while (node) {
+ if (node.flags & 2 /* Ambient */) {
+ return true;
+ }
+ node = node.parent;
+ }
+ return false;
+ }
+ function hasExportDeclarations(node) {
+ var body = node.kind === 248 /* SourceFile */ ? node : node.body;
+ if (body.kind === 248 /* SourceFile */ || body.kind === 219 /* ModuleBlock */) {
+ for (var _i = 0, _a = body.statements; _i < _a.length; _i++) {
+ var stat = _a[_i];
+ if (stat.kind === 228 /* ExportDeclaration */ || stat.kind === 227 /* ExportAssignment */) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ function setExportContextFlag(node) {
+ // A declaration source file or ambient module declaration that contains no export declarations (but possibly regular
+ // declarations with export modifiers) is an export context in which declarations are implicitly exported.
+ if (isAmbientContext(node) && !hasExportDeclarations(node)) {
+ node.flags |= 262144 /* ExportContext */;
+ }
+ else {
+ node.flags &= ~262144 /* ExportContext */;
+ }
+ }
+ function bindModuleDeclaration(node) {
+ setExportContextFlag(node);
+ if (node.name.kind === 9 /* StringLiteral */) {
+ declareSymbolAndAddToSymbolTable(node, 512 /* ValueModule */, 106639 /* ValueModuleExcludes */);
+ }
+ else {
+ var state = getModuleInstanceState(node);
+ if (state === 0 /* NonInstantiated */) {
+ declareSymbolAndAddToSymbolTable(node, 1024 /* NamespaceModule */, 0 /* NamespaceModuleExcludes */);
+ }
+ else {
+ declareSymbolAndAddToSymbolTable(node, 512 /* ValueModule */, 106639 /* ValueModuleExcludes */);
+ if (node.symbol.flags & (16 /* Function */ | 32 /* Class */ | 256 /* RegularEnum */)) {
+ // if module was already merged with some function, class or non-const enum
+ // treat is a non-const-enum-only
+ node.symbol.constEnumOnlyModule = false;
+ }
+ else {
+ var currentModuleIsConstEnumOnly = state === 2 /* ConstEnumOnly */;
+ if (node.symbol.constEnumOnlyModule === undefined) {
+ // non-merged case - use the current state
+ node.symbol.constEnumOnlyModule = currentModuleIsConstEnumOnly;
+ }
+ else {
+ // merged case: module is const enum only if all its pieces are non-instantiated or const enum
+ node.symbol.constEnumOnlyModule = node.symbol.constEnumOnlyModule && currentModuleIsConstEnumOnly;
+ }
+ }
+ }
+ }
+ }
+ function bindFunctionOrConstructorType(node) {
+ // For a given function symbol "<...>(...) => T" we want to generate a symbol identical
+ // to the one we would get for: { <...>(...): T }
+ //
+ // We do that by making an anonymous type literal symbol, and then setting the function
+ // symbol as its sole member. To the rest of the system, this symbol will be indistinguishable
+ // from an actual type literal symbol you would have gotten had you used the long form.
+ var symbol = createSymbol(131072 /* Signature */, getDeclarationName(node));
+ addDeclarationToSymbol(symbol, node, 131072 /* Signature */);
+ var typeLiteralSymbol = createSymbol(2048 /* TypeLiteral */, "__type");
+ addDeclarationToSymbol(typeLiteralSymbol, node, 2048 /* TypeLiteral */);
+ typeLiteralSymbol.members = (_a = {}, _a[symbol.name] = symbol, _a);
+ var _a;
+ }
+ function bindObjectLiteralExpression(node) {
+ var ElementKind;
+ (function (ElementKind) {
+ ElementKind[ElementKind["Property"] = 1] = "Property";
+ ElementKind[ElementKind["Accessor"] = 2] = "Accessor";
+ })(ElementKind || (ElementKind = {}));
+ if (inStrictMode) {
+ var seen = {};
+ for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+ var prop = _a[_i];
+ if (prop.name.kind !== 69 /* Identifier */) {
+ continue;
+ }
+ var identifier = prop.name;
+ // ECMA-262 11.1.5 Object Initialiser
+ // If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
+ // a.This production is contained in strict code and IsDataDescriptor(previous) is true and
+ // IsDataDescriptor(propId.descriptor) is true.
+ // b.IsDataDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true.
+ // c.IsAccessorDescriptor(previous) is true and IsDataDescriptor(propId.descriptor) is true.
+ // d.IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true
+ // and either both previous and propId.descriptor have[[Get]] fields or both previous and propId.descriptor have[[Set]] fields
+ var currentKind = prop.kind === 245 /* PropertyAssignment */ || prop.kind === 246 /* ShorthandPropertyAssignment */ || prop.kind === 143 /* MethodDeclaration */
+ ? 1 /* Property */
+ : 2 /* Accessor */;
+ var existingKind = seen[identifier.text];
+ if (!existingKind) {
+ seen[identifier.text] = currentKind;
+ continue;
+ }
+ if (currentKind === 1 /* Property */ && existingKind === 1 /* Property */) {
+ var span = ts.getErrorSpanForNode(file, identifier);
+ file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode));
+ }
+ }
+ }
+ return bindAnonymousDeclaration(node, 4096 /* ObjectLiteral */, "__object");
+ }
+ function bindAnonymousDeclaration(node, symbolFlags, name) {
+ var symbol = createSymbol(symbolFlags, name);
+ addDeclarationToSymbol(symbol, node, symbolFlags);
+ }
+ function bindBlockScopedDeclaration(node, symbolFlags, symbolExcludes) {
+ switch (blockScopeContainer.kind) {
+ case 218 /* ModuleDeclaration */:
+ declareModuleMember(node, symbolFlags, symbolExcludes);
+ break;
+ case 248 /* SourceFile */:
+ if (ts.isExternalModule(container)) {
+ declareModuleMember(node, symbolFlags, symbolExcludes);
+ break;
+ }
+ // fall through.
+ default:
+ if (!blockScopeContainer.locals) {
+ blockScopeContainer.locals = {};
+ addToContainerChain(blockScopeContainer);
+ }
+ declareSymbol(blockScopeContainer.locals, undefined, node, symbolFlags, symbolExcludes);
+ }
+ }
+ function bindBlockScopedVariableDeclaration(node) {
+ bindBlockScopedDeclaration(node, 2 /* BlockScopedVariable */, 107455 /* BlockScopedVariableExcludes */);
+ }
+ // The binder visits every node in the syntax tree so it is a convenient place to perform a single localized
+ // check for reserved words used as identifiers in strict mode code.
+ function checkStrictModeIdentifier(node) {
+ if (inStrictMode &&
+ node.originalKeywordKind >= 106 /* FirstFutureReservedWord */ &&
+ node.originalKeywordKind <= 114 /* LastFutureReservedWord */ &&
+ !ts.isIdentifierName(node)) {
+ // Report error only if there are no parse errors in file
+ if (!file.parseDiagnostics.length) {
+ file.bindDiagnostics.push(ts.createDiagnosticForNode(node, getStrictModeIdentifierMessage(node), ts.declarationNameToString(node)));
+ }
+ }
+ }
+ function getStrictModeIdentifierMessage(node) {
+ // Provide specialized messages to help the user understand why we think they're in
+ // strict mode.
+ if (ts.getContainingClass(node)) {
+ return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode;
+ }
+ if (file.externalModuleIndicator) {
+ return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode;
+ }
+ return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode;
+ }
+ function checkStrictModeBinaryExpression(node) {
+ if (inStrictMode && ts.isLeftHandSideExpression(node.left) && ts.isAssignmentOperator(node.operatorToken.kind)) {
+ // ECMA 262 (Annex C) The identifier eval or arguments may not appear as the LeftHandSideExpression of an
+ // Assignment operator(11.13) or of a PostfixExpression(11.3)
+ checkStrictModeEvalOrArguments(node, node.left);
+ }
+ }
+ function checkStrictModeCatchClause(node) {
+ // It is a SyntaxError if a TryStatement with a Catch occurs within strict code and the Identifier of the
+ // Catch production is eval or arguments
+ if (inStrictMode && node.variableDeclaration) {
+ checkStrictModeEvalOrArguments(node, node.variableDeclaration.name);
+ }
+ }
+ function checkStrictModeDeleteExpression(node) {
+ // Grammar checking
+ if (inStrictMode && node.expression.kind === 69 /* Identifier */) {
+ // When a delete operator occurs within strict mode code, a SyntaxError is thrown if its
+ // UnaryExpression is a direct reference to a variable, function argument, or function name
+ var span = ts.getErrorSpanForNode(file, node.expression);
+ file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.delete_cannot_be_called_on_an_identifier_in_strict_mode));
+ }
+ }
+ function isEvalOrArgumentsIdentifier(node) {
+ return node.kind === 69 /* Identifier */ &&
+ (node.text === "eval" || node.text === "arguments");
+ }
+ function checkStrictModeEvalOrArguments(contextNode, name) {
+ if (name && name.kind === 69 /* Identifier */) {
+ var identifier = name;
+ if (isEvalOrArgumentsIdentifier(identifier)) {
+ // We check first if the name is inside class declaration or class expression; if so give explicit message
+ // otherwise report generic error message.
+ var span = ts.getErrorSpanForNode(file, name);
+ file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, getStrictModeEvalOrArgumentsMessage(contextNode), identifier.text));
+ }
+ }
+ }
+ function getStrictModeEvalOrArgumentsMessage(node) {
+ // Provide specialized messages to help the user understand why we think they're in
+ // strict mode.
+ if (ts.getContainingClass(node)) {
+ return ts.Diagnostics.Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode;
+ }
+ if (file.externalModuleIndicator) {
+ return ts.Diagnostics.Invalid_use_of_0_Modules_are_automatically_in_strict_mode;
+ }
+ return ts.Diagnostics.Invalid_use_of_0_in_strict_mode;
+ }
+ function checkStrictModeFunctionName(node) {
+ if (inStrictMode) {
+ // It is a SyntaxError if the identifier eval or arguments appears within a FormalParameterList of a strict mode FunctionDeclaration or FunctionExpression (13.1))
+ checkStrictModeEvalOrArguments(node, node.name);
+ }
+ }
+ function checkStrictModeNumericLiteral(node) {
+ if (inStrictMode && node.flags & 65536 /* OctalLiteral */) {
+ file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Octal_literals_are_not_allowed_in_strict_mode));
+ }
+ }
+ function checkStrictModePostfixUnaryExpression(node) {
+ // Grammar checking
+ // The identifier eval or arguments may not appear as the LeftHandSideExpression of an
+ // Assignment operator(11.13) or of a PostfixExpression(11.3) or as the UnaryExpression
+ // operated upon by a Prefix Increment(11.4.4) or a Prefix Decrement(11.4.5) operator.
+ if (inStrictMode) {
+ checkStrictModeEvalOrArguments(node, node.operand);
+ }
+ }
+ function checkStrictModePrefixUnaryExpression(node) {
+ // Grammar checking
+ if (inStrictMode) {
+ if (node.operator === 41 /* PlusPlusToken */ || node.operator === 42 /* MinusMinusToken */) {
+ checkStrictModeEvalOrArguments(node, node.operand);
+ }
+ }
+ }
+ function checkStrictModeWithStatement(node) {
+ // Grammar checking for withStatement
+ if (inStrictMode) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_strict_mode);
+ }
+ }
+ function grammarErrorOnFirstToken(node, message, arg0, arg1, arg2) {
+ var span = ts.getSpanOfTokenAtPosition(file, node.pos);
+ file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, message, arg0, arg1, arg2));
+ }
+ function getDestructuringParameterName(node) {
+ return "__" + ts.indexOf(node.parent.parameters, node);
+ }
+ function bind(node) {
+ node.parent = parent;
+ var savedInStrictMode = inStrictMode;
+ if (!savedInStrictMode) {
+ updateStrictMode(node);
+ }
+ // First we bind declaration nodes to a symbol if possible. We'll both create a symbol
+ // and then potentially add the symbol to an appropriate symbol table. Possible
+ // destination symbol tables are:
+ //
+ // 1) The 'exports' table of the current container's symbol.
+ // 2) The 'members' table of the current container's symbol.
+ // 3) The 'locals' table of the current container.
+ //
+ // However, not all symbols will end up in any of these tables. 'Anonymous' symbols
+ // (like TypeLiterals for example) will not be put in any table.
+ bindWorker(node);
+ // Then we recurse into the children of the node to bind them as well. For certain
+ // symbols we do specialized work when we recurse. For example, we'll keep track of
+ // the current 'container' node when it changes. This helps us know which symbol table
+ // a local should go into for example.
+ bindChildren(node);
+ inStrictMode = savedInStrictMode;
+ }
+ function updateStrictMode(node) {
+ switch (node.kind) {
+ case 248 /* SourceFile */:
+ case 219 /* ModuleBlock */:
+ updateStrictModeStatementList(node.statements);
+ return;
+ case 192 /* Block */:
+ if (ts.isFunctionLike(node.parent)) {
+ updateStrictModeStatementList(node.statements);
+ }
+ return;
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ // All classes are automatically in strict mode in ES6.
+ inStrictMode = true;
+ return;
+ }
+ }
+ function updateStrictModeStatementList(statements) {
+ for (var _i = 0; _i < statements.length; _i++) {
+ var statement = statements[_i];
+ if (!ts.isPrologueDirective(statement)) {
+ return;
+ }
+ if (isUseStrictPrologueDirective(statement)) {
+ inStrictMode = true;
+ return;
+ }
+ }
+ }
+ /// Should be called only on prologue directives (isPrologueDirective(node) should be true)
+ function isUseStrictPrologueDirective(node) {
+ var nodeText = ts.getTextOfNodeFromSourceText(file.text, node.expression);
+ // Note: the node text must be exactly "use strict" or 'use strict'. It is not ok for the
+ // string to contain unicode escapes (as per ES5).
+ return nodeText === "\"use strict\"" || nodeText === "'use strict'";
+ }
+ function bindWorker(node) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ return checkStrictModeIdentifier(node);
+ case 181 /* BinaryExpression */:
+ return checkStrictModeBinaryExpression(node);
+ case 244 /* CatchClause */:
+ return checkStrictModeCatchClause(node);
+ case 175 /* DeleteExpression */:
+ return checkStrictModeDeleteExpression(node);
+ case 8 /* NumericLiteral */:
+ return checkStrictModeNumericLiteral(node);
+ case 180 /* PostfixUnaryExpression */:
+ return checkStrictModePostfixUnaryExpression(node);
+ case 179 /* PrefixUnaryExpression */:
+ return checkStrictModePrefixUnaryExpression(node);
+ case 205 /* WithStatement */:
+ return checkStrictModeWithStatement(node);
+ case 97 /* ThisKeyword */:
+ seenThisKeyword = true;
+ return;
+ case 137 /* TypeParameter */:
+ return declareSymbolAndAddToSymbolTable(node, 262144 /* TypeParameter */, 530912 /* TypeParameterExcludes */);
+ case 138 /* Parameter */:
+ return bindParameter(node);
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ return bindVariableDeclarationOrBindingElement(node);
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return bindPropertyOrMethodOrAccessor(node, 4 /* Property */ | (node.questionToken ? 536870912 /* Optional */ : 0 /* None */), 107455 /* PropertyExcludes */);
+ case 245 /* PropertyAssignment */:
+ case 246 /* ShorthandPropertyAssignment */:
+ return bindPropertyOrMethodOrAccessor(node, 4 /* Property */, 107455 /* PropertyExcludes */);
+ case 247 /* EnumMember */:
+ return bindPropertyOrMethodOrAccessor(node, 8 /* EnumMember */, 107455 /* EnumMemberExcludes */);
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ return declareSymbolAndAddToSymbolTable(node, 131072 /* Signature */, 0 /* None */);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ // If this is an ObjectLiteralExpression method, then it sits in the same space
+ // as other properties in the object literal. So we use SymbolFlags.PropertyExcludes
+ // so that it will conflict with any other object literal members with the same
+ // name.
+ return bindPropertyOrMethodOrAccessor(node, 8192 /* Method */ | (node.questionToken ? 536870912 /* Optional */ : 0 /* None */), ts.isObjectLiteralMethod(node) ? 107455 /* PropertyExcludes */ : 99263 /* MethodExcludes */);
+ case 213 /* FunctionDeclaration */:
+ checkStrictModeFunctionName(node);
+ return declareSymbolAndAddToSymbolTable(node, 16 /* Function */, 106927 /* FunctionExcludes */);
+ case 144 /* Constructor */:
+ return declareSymbolAndAddToSymbolTable(node, 16384 /* Constructor */, /*symbolExcludes:*/ 0 /* None */);
+ case 145 /* GetAccessor */:
+ return bindPropertyOrMethodOrAccessor(node, 32768 /* GetAccessor */, 41919 /* GetAccessorExcludes */);
+ case 146 /* SetAccessor */:
+ return bindPropertyOrMethodOrAccessor(node, 65536 /* SetAccessor */, 74687 /* SetAccessorExcludes */);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ return bindFunctionOrConstructorType(node);
+ case 155 /* TypeLiteral */:
+ return bindAnonymousDeclaration(node, 2048 /* TypeLiteral */, "__type");
+ case 165 /* ObjectLiteralExpression */:
+ return bindObjectLiteralExpression(node);
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ checkStrictModeFunctionName(node);
+ var bindingName = node.name ? node.name.text : "__function";
+ return bindAnonymousDeclaration(node, 16 /* Function */, bindingName);
+ case 186 /* ClassExpression */:
+ case 214 /* ClassDeclaration */:
+ return bindClassLikeDeclaration(node);
+ case 215 /* InterfaceDeclaration */:
+ return bindBlockScopedDeclaration(node, 64 /* Interface */, 792960 /* InterfaceExcludes */);
+ case 216 /* TypeAliasDeclaration */:
+ return bindBlockScopedDeclaration(node, 524288 /* TypeAlias */, 793056 /* TypeAliasExcludes */);
+ case 217 /* EnumDeclaration */:
+ return bindEnumDeclaration(node);
+ case 218 /* ModuleDeclaration */:
+ return bindModuleDeclaration(node);
+ case 221 /* ImportEqualsDeclaration */:
+ case 224 /* NamespaceImport */:
+ case 226 /* ImportSpecifier */:
+ case 230 /* ExportSpecifier */:
+ return declareSymbolAndAddToSymbolTable(node, 8388608 /* Alias */, 8388608 /* AliasExcludes */);
+ case 223 /* ImportClause */:
+ return bindImportClause(node);
+ case 228 /* ExportDeclaration */:
+ return bindExportDeclaration(node);
+ case 227 /* ExportAssignment */:
+ return bindExportAssignment(node);
+ case 248 /* SourceFile */:
+ return bindSourceFileIfExternalModule();
+ }
+ }
+ function bindSourceFileIfExternalModule() {
+ setExportContextFlag(file);
+ if (ts.isExternalModule(file)) {
+ bindAnonymousDeclaration(file, 512 /* ValueModule */, "\"" + ts.removeFileExtension(file.fileName) + "\"");
+ }
+ }
+ function bindExportAssignment(node) {
+ if (!container.symbol || !container.symbol.exports) {
+ // Export assignment in some sort of block construct
+ bindAnonymousDeclaration(node, 8388608 /* Alias */, getDeclarationName(node));
+ }
+ else if (node.expression.kind === 69 /* Identifier */) {
+ // An export default clause with an identifier exports all meanings of that identifier
+ declareSymbol(container.symbol.exports, container.symbol, node, 8388608 /* Alias */, 107455 /* PropertyExcludes */ | 8388608 /* AliasExcludes */);
+ }
+ else {
+ // An export default clause with an expression exports a value
+ declareSymbol(container.symbol.exports, container.symbol, node, 4 /* Property */, 107455 /* PropertyExcludes */ | 8388608 /* AliasExcludes */);
+ }
+ }
+ function bindExportDeclaration(node) {
+ if (!container.symbol || !container.symbol.exports) {
+ // Export * in some sort of block construct
+ bindAnonymousDeclaration(node, 1073741824 /* ExportStar */, getDeclarationName(node));
+ }
+ else if (!node.exportClause) {
+ // All export * declarations are collected in an __export symbol
+ declareSymbol(container.symbol.exports, container.symbol, node, 1073741824 /* ExportStar */, 0 /* None */);
+ }
+ }
+ function bindImportClause(node) {
+ if (node.name) {
+ declareSymbolAndAddToSymbolTable(node, 8388608 /* Alias */, 8388608 /* AliasExcludes */);
+ }
+ }
+ function bindClassLikeDeclaration(node) {
+ if (node.kind === 214 /* ClassDeclaration */) {
+ bindBlockScopedDeclaration(node, 32 /* Class */, 899519 /* ClassExcludes */);
+ }
+ else {
+ var bindingName = node.name ? node.name.text : "__class";
+ bindAnonymousDeclaration(node, 32 /* Class */, bindingName);
+ // Add name of class expression into the map for semantic classifier
+ if (node.name) {
+ classifiableNames[node.name.text] = node.name.text;
+ }
+ }
+ var symbol = node.symbol;
+ // TypeScript 1.0 spec (April 2014): 8.4
+ // Every class automatically contains a static property member named 'prototype', the
+ // type of which is an instantiation of the class type with type Any supplied as a type
+ // argument for each type parameter. It is an error to explicitly declare a static
+ // property member with the name 'prototype'.
+ //
+ // Note: we check for this here because this class may be merging into a module. The
+ // module might have an exported variable called 'prototype'. We can't allow that as
+ // that would clash with the built-in 'prototype' for the class.
+ var prototypeSymbol = createSymbol(4 /* Property */ | 134217728 /* Prototype */, "prototype");
+ if (ts.hasProperty(symbol.exports, prototypeSymbol.name)) {
+ if (node.name) {
+ node.name.parent = node;
+ }
+ file.bindDiagnostics.push(ts.createDiagnosticForNode(symbol.exports[prototypeSymbol.name].declarations[0], ts.Diagnostics.Duplicate_identifier_0, prototypeSymbol.name));
+ }
+ symbol.exports[prototypeSymbol.name] = prototypeSymbol;
+ prototypeSymbol.parent = symbol;
+ }
+ function bindEnumDeclaration(node) {
+ return ts.isConst(node)
+ ? bindBlockScopedDeclaration(node, 128 /* ConstEnum */, 899967 /* ConstEnumExcludes */)
+ : bindBlockScopedDeclaration(node, 256 /* RegularEnum */, 899327 /* RegularEnumExcludes */);
+ }
+ function bindVariableDeclarationOrBindingElement(node) {
+ if (inStrictMode) {
+ checkStrictModeEvalOrArguments(node, node.name);
+ }
+ if (!ts.isBindingPattern(node.name)) {
+ if (ts.isBlockOrCatchScoped(node)) {
+ bindBlockScopedVariableDeclaration(node);
+ }
+ else if (ts.isParameterDeclaration(node)) {
+ // It is safe to walk up parent chain to find whether the node is a destructing parameter declaration
+ // because its parent chain has already been set up, since parents are set before descending into children.
+ //
+ // If node is a binding element in parameter declaration, we need to use ParameterExcludes.
+ // Using ParameterExcludes flag allows the compiler to report an error on duplicate identifiers in Parameter Declaration
+ // For example:
+ // function foo([a,a]) {} // Duplicate Identifier error
+ // function bar(a,a) {} // Duplicate Identifier error, parameter declaration in this case is handled in bindParameter
+ // // which correctly set excluded symbols
+ declareSymbolAndAddToSymbolTable(node, 1 /* FunctionScopedVariable */, 107455 /* ParameterExcludes */);
+ }
+ else {
+ declareSymbolAndAddToSymbolTable(node, 1 /* FunctionScopedVariable */, 107454 /* FunctionScopedVariableExcludes */);
+ }
+ }
+ }
+ function bindParameter(node) {
+ if (inStrictMode) {
+ // It is a SyntaxError if the identifier eval or arguments appears within a FormalParameterList of a
+ // strict mode FunctionLikeDeclaration or FunctionExpression(13.1)
+ checkStrictModeEvalOrArguments(node, node.name);
+ }
+ if (ts.isBindingPattern(node.name)) {
+ bindAnonymousDeclaration(node, 1 /* FunctionScopedVariable */, getDestructuringParameterName(node));
+ }
+ else {
+ declareSymbolAndAddToSymbolTable(node, 1 /* FunctionScopedVariable */, 107455 /* ParameterExcludes */);
+ }
+ // If this is a property-parameter, then also declare the property symbol into the
+ // containing class.
+ if (node.flags & 112 /* AccessibilityModifier */ &&
+ node.parent.kind === 144 /* Constructor */ &&
+ ts.isClassLike(node.parent.parent)) {
+ var classDeclaration = node.parent.parent;
+ declareSymbol(classDeclaration.symbol.members, classDeclaration.symbol, node, 4 /* Property */, 107455 /* PropertyExcludes */);
+ }
+ }
+ function bindPropertyOrMethodOrAccessor(node, symbolFlags, symbolExcludes) {
+ return ts.hasDynamicName(node)
+ ? bindAnonymousDeclaration(node, symbolFlags, "__computed")
+ : declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes);
+ }
+ }
+})(ts || (ts = {}));
+/// <reference path="binder.ts" />
+/// <reference path="sys.ts" />
+/* @internal */
+var ts;
+(function (ts) {
+ function getDeclarationOfKind(symbol, kind) {
+ var declarations = symbol.declarations;
+ if (declarations) {
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ if (declaration.kind === kind) {
+ return declaration;
+ }
+ }
+ }
+ return undefined;
+ }
+ ts.getDeclarationOfKind = getDeclarationOfKind;
+ // Pool writers to avoid needing to allocate them for every symbol we write.
+ var stringWriters = [];
+ function getSingleLineStringWriter() {
+ if (stringWriters.length === 0) {
+ var str = "";
+ var writeText = function (text) { return str += text; };
+ return {
+ string: function () { return str; },
+ writeKeyword: writeText,
+ writeOperator: writeText,
+ writePunctuation: writeText,
+ writeSpace: writeText,
+ writeStringLiteral: writeText,
+ writeParameter: writeText,
+ writeSymbol: writeText,
+ // Completely ignore indentation for string writers. And map newlines to
+ // a single space.
+ writeLine: function () { return str += " "; },
+ increaseIndent: function () { },
+ decreaseIndent: function () { },
+ clear: function () { return str = ""; },
+ trackSymbol: function () { },
+ reportInaccessibleThisError: function () { }
+ };
+ }
+ return stringWriters.pop();
+ }
+ ts.getSingleLineStringWriter = getSingleLineStringWriter;
+ function releaseStringWriter(writer) {
+ writer.clear();
+ stringWriters.push(writer);
+ }
+ ts.releaseStringWriter = releaseStringWriter;
+ function getFullWidth(node) {
+ return node.end - node.pos;
+ }
+ ts.getFullWidth = getFullWidth;
+ function arrayIsEqualTo(arr1, arr2, comparer) {
+ if (!arr1 || !arr2) {
+ return arr1 === arr2;
+ }
+ if (arr1.length !== arr2.length) {
+ return false;
+ }
+ for (var i = 0; i < arr1.length; ++i) {
+ var equals = comparer ? comparer(arr1[i], arr2[i]) : arr1[i] === arr2[i];
+ if (!equals) {
+ return false;
+ }
+ }
+ return true;
+ }
+ ts.arrayIsEqualTo = arrayIsEqualTo;
+ function hasResolvedModule(sourceFile, moduleNameText) {
+ return sourceFile.resolvedModules && ts.hasProperty(sourceFile.resolvedModules, moduleNameText);
+ }
+ ts.hasResolvedModule = hasResolvedModule;
+ function getResolvedModule(sourceFile, moduleNameText) {
+ return hasResolvedModule(sourceFile, moduleNameText) ? sourceFile.resolvedModules[moduleNameText] : undefined;
+ }
+ ts.getResolvedModule = getResolvedModule;
+ function setResolvedModule(sourceFile, moduleNameText, resolvedModule) {
+ if (!sourceFile.resolvedModules) {
+ sourceFile.resolvedModules = {};
+ }
+ sourceFile.resolvedModules[moduleNameText] = resolvedModule;
+ }
+ ts.setResolvedModule = setResolvedModule;
+ // Returns true if this node contains a parse error anywhere underneath it.
+ function containsParseError(node) {
+ aggregateChildData(node);
+ return (node.parserContextFlags & 64 /* ThisNodeOrAnySubNodesHasError */) !== 0;
+ }
+ ts.containsParseError = containsParseError;
+ function aggregateChildData(node) {
+ if (!(node.parserContextFlags & 128 /* HasAggregatedChildData */)) {
+ // A node is considered to contain a parse error if:
+ // a) the parser explicitly marked that it had an error
+ // b) any of it's children reported that it had an error.
+ var thisNodeOrAnySubNodesHasError = ((node.parserContextFlags & 16 /* ThisNodeHasError */) !== 0) ||
+ ts.forEachChild(node, containsParseError);
+ // If so, mark ourselves accordingly.
+ if (thisNodeOrAnySubNodesHasError) {
+ node.parserContextFlags |= 64 /* ThisNodeOrAnySubNodesHasError */;
+ }
+ // Also mark that we've propogated the child information to this node. This way we can
+ // always consult the bit directly on this node without needing to check its children
+ // again.
+ node.parserContextFlags |= 128 /* HasAggregatedChildData */;
+ }
+ }
+ function getSourceFileOfNode(node) {
+ while (node && node.kind !== 248 /* SourceFile */) {
+ node = node.parent;
+ }
+ return node;
+ }
+ ts.getSourceFileOfNode = getSourceFileOfNode;
+ function getStartPositionOfLine(line, sourceFile) {
+ ts.Debug.assert(line >= 0);
+ return ts.getLineStarts(sourceFile)[line];
+ }
+ ts.getStartPositionOfLine = getStartPositionOfLine;
+ // This is a useful function for debugging purposes.
+ function nodePosToString(node) {
+ var file = getSourceFileOfNode(node);
+ var loc = ts.getLineAndCharacterOfPosition(file, node.pos);
+ return file.fileName + "(" + (loc.line + 1) + "," + (loc.character + 1) + ")";
+ }
+ ts.nodePosToString = nodePosToString;
+ function getStartPosOfNode(node) {
+ return node.pos;
+ }
+ ts.getStartPosOfNode = getStartPosOfNode;
+ // Returns true if this node is missing from the actual source code. A 'missing' node is different
+ // from 'undefined/defined'. When a node is undefined (which can happen for optional nodes
+ // in the tree), it is definitely missing. However, a node may be defined, but still be
+ // missing. This happens whenever the parser knows it needs to parse something, but can't
+ // get anything in the source code that it expects at that location. For example:
+ //
+ // let a: ;
+ //
+ // Here, the Type in the Type-Annotation is not-optional (as there is a colon in the source
+ // code). So the parser will attempt to parse out a type, and will create an actual node.
+ // However, this node will be 'missing' in the sense that no actual source-code/tokens are
+ // contained within it.
+ function nodeIsMissing(node) {
+ if (!node) {
+ return true;
+ }
+ return node.pos === node.end && node.pos >= 0 && node.kind !== 1 /* EndOfFileToken */;
+ }
+ ts.nodeIsMissing = nodeIsMissing;
+ function nodeIsPresent(node) {
+ return !nodeIsMissing(node);
+ }
+ ts.nodeIsPresent = nodeIsPresent;
+ function getTokenPosOfNode(node, sourceFile) {
+ // With nodes that have no width (i.e. 'Missing' nodes), we actually *don't*
+ // want to skip trivia because this will launch us forward to the next token.
+ if (nodeIsMissing(node)) {
+ return node.pos;
+ }
+ return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
+ }
+ ts.getTokenPosOfNode = getTokenPosOfNode;
+ function getNonDecoratorTokenPosOfNode(node, sourceFile) {
+ if (nodeIsMissing(node) || !node.decorators) {
+ return getTokenPosOfNode(node, sourceFile);
+ }
+ return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.decorators.end);
+ }
+ ts.getNonDecoratorTokenPosOfNode = getNonDecoratorTokenPosOfNode;
+ function getSourceTextOfNodeFromSourceFile(sourceFile, node, includeTrivia) {
+ if (includeTrivia === void 0) { includeTrivia = false; }
+ if (nodeIsMissing(node)) {
+ return "";
+ }
+ var text = sourceFile.text;
+ return text.substring(includeTrivia ? node.pos : ts.skipTrivia(text, node.pos), node.end);
+ }
+ ts.getSourceTextOfNodeFromSourceFile = getSourceTextOfNodeFromSourceFile;
+ function getTextOfNodeFromSourceText(sourceText, node) {
+ if (nodeIsMissing(node)) {
+ return "";
+ }
+ return sourceText.substring(ts.skipTrivia(sourceText, node.pos), node.end);
+ }
+ ts.getTextOfNodeFromSourceText = getTextOfNodeFromSourceText;
+ function getTextOfNode(node, includeTrivia) {
+ if (includeTrivia === void 0) { includeTrivia = false; }
+ return getSourceTextOfNodeFromSourceFile(getSourceFileOfNode(node), node, includeTrivia);
+ }
+ ts.getTextOfNode = getTextOfNode;
+ // Add an extra underscore to identifiers that start with two underscores to avoid issues with magic names like '__proto__'
+ function escapeIdentifier(identifier) {
+ return identifier.length >= 2 && identifier.charCodeAt(0) === 95 /* _ */ && identifier.charCodeAt(1) === 95 /* _ */ ? "_" + identifier : identifier;
+ }
+ ts.escapeIdentifier = escapeIdentifier;
+ // Remove extra underscore from escaped identifier
+ function unescapeIdentifier(identifier) {
+ return identifier.length >= 3 && identifier.charCodeAt(0) === 95 /* _ */ && identifier.charCodeAt(1) === 95 /* _ */ && identifier.charCodeAt(2) === 95 /* _ */ ? identifier.substr(1) : identifier;
+ }
+ ts.unescapeIdentifier = unescapeIdentifier;
+ // Make an identifier from an external module name by extracting the string after the last "/" and replacing
+ // all non-alphanumeric characters with underscores
+ function makeIdentifierFromModuleName(moduleName) {
+ return ts.getBaseFileName(moduleName).replace(/^(\d)/, "_$1").replace(/\W/g, "_");
+ }
+ ts.makeIdentifierFromModuleName = makeIdentifierFromModuleName;
+ function isBlockOrCatchScoped(declaration) {
+ return (getCombinedNodeFlags(declaration) & 49152 /* BlockScoped */) !== 0 ||
+ isCatchClauseVariableDeclaration(declaration);
+ }
+ ts.isBlockOrCatchScoped = isBlockOrCatchScoped;
+ // Gets the nearest enclosing block scope container that has the provided node
+ // as a descendant, that is not the provided node.
+ function getEnclosingBlockScopeContainer(node) {
+ var current = node.parent;
+ while (current) {
+ if (isFunctionLike(current)) {
+ return current;
+ }
+ switch (current.kind) {
+ case 248 /* SourceFile */:
+ case 220 /* CaseBlock */:
+ case 244 /* CatchClause */:
+ case 218 /* ModuleDeclaration */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ return current;
+ case 192 /* Block */:
+ // function block is not considered block-scope container
+ // see comment in binder.ts: bind(...), case for SyntaxKind.Block
+ if (!isFunctionLike(current.parent)) {
+ return current;
+ }
+ }
+ current = current.parent;
+ }
+ }
+ ts.getEnclosingBlockScopeContainer = getEnclosingBlockScopeContainer;
+ function isCatchClauseVariableDeclaration(declaration) {
+ return declaration &&
+ declaration.kind === 211 /* VariableDeclaration */ &&
+ declaration.parent &&
+ declaration.parent.kind === 244 /* CatchClause */;
+ }
+ ts.isCatchClauseVariableDeclaration = isCatchClauseVariableDeclaration;
+ // Return display name of an identifier
+ // Computed property names will just be emitted as "[<expr>]", where <expr> is the source
+ // text of the expression in the computed property.
+ function declarationNameToString(name) {
+ return getFullWidth(name) === 0 ? "(Missing)" : getTextOfNode(name);
+ }
+ ts.declarationNameToString = declarationNameToString;
+ function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
+ var sourceFile = getSourceFileOfNode(node);
+ var span = getErrorSpanForNode(sourceFile, node);
+ return ts.createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2);
+ }
+ ts.createDiagnosticForNode = createDiagnosticForNode;
+ function createDiagnosticForNodeFromMessageChain(node, messageChain) {
+ var sourceFile = getSourceFileOfNode(node);
+ var span = getErrorSpanForNode(sourceFile, node);
+ return {
+ file: sourceFile,
+ start: span.start,
+ length: span.length,
+ code: messageChain.code,
+ category: messageChain.category,
+ messageText: messageChain.next ? messageChain : messageChain.messageText
+ };
+ }
+ ts.createDiagnosticForNodeFromMessageChain = createDiagnosticForNodeFromMessageChain;
+ function getSpanOfTokenAtPosition(sourceFile, pos) {
+ var scanner = ts.createScanner(sourceFile.languageVersion, /*skipTrivia*/ true, sourceFile.languageVariant, sourceFile.text, /*onError:*/ undefined, pos);
+ scanner.scan();
+ var start = scanner.getTokenPos();
+ return ts.createTextSpanFromBounds(start, scanner.getTextPos());
+ }
+ ts.getSpanOfTokenAtPosition = getSpanOfTokenAtPosition;
+ function getErrorSpanForNode(sourceFile, node) {
+ var errorNode = node;
+ switch (node.kind) {
+ case 248 /* SourceFile */:
+ var pos_1 = ts.skipTrivia(sourceFile.text, 0, /*stopAfterLineBreak*/ false);
+ if (pos_1 === sourceFile.text.length) {
+ // file is empty - return span for the beginning of the file
+ return ts.createTextSpan(0, 0);
+ }
+ return getSpanOfTokenAtPosition(sourceFile, pos_1);
+ // This list is a work in progress. Add missing node kinds to improve their error
+ // spans.
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 215 /* InterfaceDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 247 /* EnumMember */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ errorNode = node.name;
+ break;
+ }
+ if (errorNode === undefined) {
+ // If we don't have a better node, then just set the error on the first token of
+ // construct.
+ return getSpanOfTokenAtPosition(sourceFile, node.pos);
+ }
+ var pos = nodeIsMissing(errorNode)
+ ? errorNode.pos
+ : ts.skipTrivia(sourceFile.text, errorNode.pos);
+ return ts.createTextSpanFromBounds(pos, errorNode.end);
+ }
+ ts.getErrorSpanForNode = getErrorSpanForNode;
+ function isExternalModule(file) {
+ return file.externalModuleIndicator !== undefined;
+ }
+ ts.isExternalModule = isExternalModule;
+ function isDeclarationFile(file) {
+ return (file.flags & 8192 /* DeclarationFile */) !== 0;
+ }
+ ts.isDeclarationFile = isDeclarationFile;
+ function isConstEnumDeclaration(node) {
+ return node.kind === 217 /* EnumDeclaration */ && isConst(node);
+ }
+ ts.isConstEnumDeclaration = isConstEnumDeclaration;
+ function walkUpBindingElementsAndPatterns(node) {
+ while (node && (node.kind === 163 /* BindingElement */ || isBindingPattern(node))) {
+ node = node.parent;
+ }
+ return node;
+ }
+ // Returns the node flags for this node and all relevant parent nodes. This is done so that
+ // nodes like variable declarations and binding elements can returned a view of their flags
+ // that includes the modifiers from their container. i.e. flags like export/declare aren't
+ // stored on the variable declaration directly, but on the containing variable statement
+ // (if it has one). Similarly, flags for let/const are store on the variable declaration
+ // list. By calling this function, all those flags are combined so that the client can treat
+ // the node as if it actually had those flags.
+ function getCombinedNodeFlags(node) {
+ node = walkUpBindingElementsAndPatterns(node);
+ var flags = node.flags;
+ if (node.kind === 211 /* VariableDeclaration */) {
+ node = node.parent;
+ }
+ if (node && node.kind === 212 /* VariableDeclarationList */) {
+ flags |= node.flags;
+ node = node.parent;
+ }
+ if (node && node.kind === 193 /* VariableStatement */) {
+ flags |= node.flags;
+ }
+ return flags;
+ }
+ ts.getCombinedNodeFlags = getCombinedNodeFlags;
+ function isConst(node) {
+ return !!(getCombinedNodeFlags(node) & 32768 /* Const */);
+ }
+ ts.isConst = isConst;
+ function isLet(node) {
+ return !!(getCombinedNodeFlags(node) & 16384 /* Let */);
+ }
+ ts.isLet = isLet;
+ function isPrologueDirective(node) {
+ return node.kind === 195 /* ExpressionStatement */ && node.expression.kind === 9 /* StringLiteral */;
+ }
+ ts.isPrologueDirective = isPrologueDirective;
+ function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
+ return ts.getLeadingCommentRanges(sourceFileOfNode.text, node.pos);
+ }
+ ts.getLeadingCommentRangesOfNode = getLeadingCommentRangesOfNode;
+ function getJsDocComments(node, sourceFileOfNode) {
+ var commentRanges = (node.kind === 138 /* Parameter */ || node.kind === 137 /* TypeParameter */) ?
+ ts.concatenate(ts.getTrailingCommentRanges(sourceFileOfNode.text, node.pos), ts.getLeadingCommentRanges(sourceFileOfNode.text, node.pos)) :
+ getLeadingCommentRangesOfNode(node, sourceFileOfNode);
+ return ts.filter(commentRanges, isJsDocComment);
+ function isJsDocComment(comment) {
+ // True if the comment starts with '/**' but not if it is '/**/'
+ return sourceFileOfNode.text.charCodeAt(comment.pos + 1) === 42 /* asterisk */ &&
+ sourceFileOfNode.text.charCodeAt(comment.pos + 2) === 42 /* asterisk */ &&
+ sourceFileOfNode.text.charCodeAt(comment.pos + 3) !== 47 /* slash */;
+ }
+ }
+ ts.getJsDocComments = getJsDocComments;
+ ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
+ ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
+ function isTypeNode(node) {
+ if (151 /* FirstTypeNode */ <= node.kind && node.kind <= 160 /* LastTypeNode */) {
+ return true;
+ }
+ switch (node.kind) {
+ case 117 /* AnyKeyword */:
+ case 128 /* NumberKeyword */:
+ case 130 /* StringKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ return true;
+ case 103 /* VoidKeyword */:
+ return node.parent.kind !== 177 /* VoidExpression */;
+ case 9 /* StringLiteral */:
+ // Specialized signatures can have string literals as their parameters' type names
+ return node.parent.kind === 138 /* Parameter */;
+ case 188 /* ExpressionWithTypeArguments */:
+ return !isExpressionWithTypeArgumentsInClassExtendsClause(node);
+ // Identifiers and qualified names may be type nodes, depending on their context. Climb
+ // above them to find the lowest container
+ case 69 /* Identifier */:
+ // If the identifier is the RHS of a qualified name, then it's a type iff its parent is.
+ if (node.parent.kind === 135 /* QualifiedName */ && node.parent.right === node) {
+ node = node.parent;
+ }
+ else if (node.parent.kind === 166 /* PropertyAccessExpression */ && node.parent.name === node) {
+ node = node.parent;
+ }
+ // At this point, node is either a qualified name or an identifier
+ ts.Debug.assert(node.kind === 69 /* Identifier */ || node.kind === 135 /* QualifiedName */ || node.kind === 166 /* PropertyAccessExpression */, "'node' was expected to be a qualified name, identifier or property access in 'isTypeNode'.");
+ case 135 /* QualifiedName */:
+ case 166 /* PropertyAccessExpression */:
+ case 97 /* ThisKeyword */:
+ var parent_1 = node.parent;
+ if (parent_1.kind === 154 /* TypeQuery */) {
+ return false;
+ }
+ // Do not recursively call isTypeNode on the parent. In the example:
+ //
+ // let a: A.B.C;
+ //
+ // Calling isTypeNode would consider the qualified name A.B a type node. Only C or
+ // A.B.C is a type node.
+ if (151 /* FirstTypeNode */ <= parent_1.kind && parent_1.kind <= 160 /* LastTypeNode */) {
+ return true;
+ }
+ switch (parent_1.kind) {
+ case 188 /* ExpressionWithTypeArguments */:
+ return !isExpressionWithTypeArgumentsInClassExtendsClause(parent_1);
+ case 137 /* TypeParameter */:
+ return node === parent_1.constraint;
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 138 /* Parameter */:
+ case 211 /* VariableDeclaration */:
+ return node === parent_1.type;
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 144 /* Constructor */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return node === parent_1.type;
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ return node === parent_1.type;
+ case 171 /* TypeAssertionExpression */:
+ return node === parent_1.type;
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ return parent_1.typeArguments && ts.indexOf(parent_1.typeArguments, node) >= 0;
+ case 170 /* TaggedTemplateExpression */:
+ // TODO (drosen): TaggedTemplateExpressions may eventually support type arguments.
+ return false;
+ }
+ }
+ return false;
+ }
+ ts.isTypeNode = isTypeNode;
+ // Warning: This has the same semantics as the forEach family of functions,
+ // in that traversal terminates in the event that 'visitor' supplies a truthy value.
+ function forEachReturnStatement(body, visitor) {
+ return traverse(body);
+ function traverse(node) {
+ switch (node.kind) {
+ case 204 /* ReturnStatement */:
+ return visitor(node);
+ case 220 /* CaseBlock */:
+ case 192 /* Block */:
+ case 196 /* IfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 205 /* WithStatement */:
+ case 206 /* SwitchStatement */:
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ case 207 /* LabeledStatement */:
+ case 209 /* TryStatement */:
+ case 244 /* CatchClause */:
+ return ts.forEachChild(node, traverse);
+ }
+ }
+ }
+ ts.forEachReturnStatement = forEachReturnStatement;
+ function forEachYieldExpression(body, visitor) {
+ return traverse(body);
+ function traverse(node) {
+ switch (node.kind) {
+ case 184 /* YieldExpression */:
+ visitor(node);
+ var operand = node.expression;
+ if (operand) {
+ traverse(operand);
+ }
+ case 217 /* EnumDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ // These are not allowed inside a generator now, but eventually they may be allowed
+ // as local types. Regardless, any yield statements contained within them should be
+ // skipped in this traversal.
+ return;
+ default:
+ if (isFunctionLike(node)) {
+ var name_5 = node.name;
+ if (name_5 && name_5.kind === 136 /* ComputedPropertyName */) {
+ // Note that we will not include methods/accessors of a class because they would require
+ // first descending into the class. This is by design.
+ traverse(name_5.expression);
+ return;
+ }
+ }
+ else if (!isTypeNode(node)) {
+ // This is the general case, which should include mostly expressions and statements.
+ // Also includes NodeArrays.
+ ts.forEachChild(node, traverse);
+ }
+ }
+ }
+ }
+ ts.forEachYieldExpression = forEachYieldExpression;
+ function isVariableLike(node) {
+ if (node) {
+ switch (node.kind) {
+ case 163 /* BindingElement */:
+ case 247 /* EnumMember */:
+ case 138 /* Parameter */:
+ case 245 /* PropertyAssignment */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 246 /* ShorthandPropertyAssignment */:
+ case 211 /* VariableDeclaration */:
+ return true;
+ }
+ }
+ return false;
+ }
+ ts.isVariableLike = isVariableLike;
+ function isAccessor(node) {
+ return node && (node.kind === 145 /* GetAccessor */ || node.kind === 146 /* SetAccessor */);
+ }
+ ts.isAccessor = isAccessor;
+ function isClassLike(node) {
+ return node && (node.kind === 214 /* ClassDeclaration */ || node.kind === 186 /* ClassExpression */);
+ }
+ ts.isClassLike = isClassLike;
+ function isFunctionLike(node) {
+ if (node) {
+ switch (node.kind) {
+ case 144 /* Constructor */:
+ case 173 /* FunctionExpression */:
+ case 213 /* FunctionDeclaration */:
+ case 174 /* ArrowFunction */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ return true;
+ }
+ }
+ return false;
+ }
+ ts.isFunctionLike = isFunctionLike;
+ function introducesArgumentsExoticObject(node) {
+ switch (node.kind) {
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ return true;
+ }
+ return false;
+ }
+ ts.introducesArgumentsExoticObject = introducesArgumentsExoticObject;
+ function isFunctionBlock(node) {
+ return node && node.kind === 192 /* Block */ && isFunctionLike(node.parent);
+ }
+ ts.isFunctionBlock = isFunctionBlock;
+ function isObjectLiteralMethod(node) {
+ return node && node.kind === 143 /* MethodDeclaration */ && node.parent.kind === 165 /* ObjectLiteralExpression */;
+ }
+ ts.isObjectLiteralMethod = isObjectLiteralMethod;
+ function getContainingFunction(node) {
+ while (true) {
+ node = node.parent;
+ if (!node || isFunctionLike(node)) {
+ return node;
+ }
+ }
+ }
+ ts.getContainingFunction = getContainingFunction;
+ function getContainingClass(node) {
+ while (true) {
+ node = node.parent;
+ if (!node || isClassLike(node)) {
+ return node;
+ }
+ }
+ }
+ ts.getContainingClass = getContainingClass;
+ function getThisContainer(node, includeArrowFunctions) {
+ while (true) {
+ node = node.parent;
+ if (!node) {
+ return undefined;
+ }
+ switch (node.kind) {
+ case 136 /* ComputedPropertyName */:
+ // If the grandparent node is an object literal (as opposed to a class),
+ // then the computed property is not a 'this' container.
+ // A computed property name in a class needs to be a this container
+ // so that we can error on it.
+ if (isClassLike(node.parent.parent)) {
+ return node;
+ }
+ // If this is a computed property, then the parent should not
+ // make it a this container. The parent might be a property
+ // in an object literal, like a method or accessor. But in order for
+ // such a parent to be a this container, the reference must be in
+ // the *body* of the container.
+ node = node.parent;
+ break;
+ case 139 /* Decorator */:
+ // Decorators are always applied outside of the body of a class or method.
+ if (node.parent.kind === 138 /* Parameter */ && isClassElement(node.parent.parent)) {
+ // If the decorator's parent is a Parameter, we resolve the this container from
+ // the grandparent class declaration.
+ node = node.parent.parent;
+ }
+ else if (isClassElement(node.parent)) {
+ // If the decorator's parent is a class element, we resolve the 'this' container
+ // from the parent class declaration.
+ node = node.parent;
+ }
+ break;
+ case 174 /* ArrowFunction */:
+ if (!includeArrowFunctions) {
+ continue;
+ }
+ // Fall through
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 218 /* ModuleDeclaration */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ case 217 /* EnumDeclaration */:
+ case 248 /* SourceFile */:
+ return node;
+ }
+ }
+ }
+ ts.getThisContainer = getThisContainer;
+ function getSuperContainer(node, includeFunctions) {
+ while (true) {
+ node = node.parent;
+ if (!node)
+ return node;
+ switch (node.kind) {
+ case 136 /* ComputedPropertyName */:
+ // If the grandparent node is an object literal (as opposed to a class),
+ // then the computed property is not a 'super' container.
+ // A computed property name in a class needs to be a super container
+ // so that we can error on it.
+ if (isClassLike(node.parent.parent)) {
+ return node;
+ }
+ // If this is a computed property, then the parent should not
+ // make it a super container. The parent might be a property
+ // in an object literal, like a method or accessor. But in order for
+ // such a parent to be a super container, the reference must be in
+ // the *body* of the container.
+ node = node.parent;
+ break;
+ case 139 /* Decorator */:
+ // Decorators are always applied outside of the body of a class or method.
+ if (node.parent.kind === 138 /* Parameter */ && isClassElement(node.parent.parent)) {
+ // If the decorator's parent is a Parameter, we resolve the this container from
+ // the grandparent class declaration.
+ node = node.parent.parent;
+ }
+ else if (isClassElement(node.parent)) {
+ // If the decorator's parent is a class element, we resolve the 'this' container
+ // from the parent class declaration.
+ node = node.parent;
+ }
+ break;
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ if (!includeFunctions) {
+ continue;
+ }
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return node;
+ }
+ }
+ }
+ ts.getSuperContainer = getSuperContainer;
+ function getEntityNameFromTypeNode(node) {
+ if (node) {
+ switch (node.kind) {
+ case 151 /* TypeReference */:
+ return node.typeName;
+ case 188 /* ExpressionWithTypeArguments */:
+ return node.expression;
+ case 69 /* Identifier */:
+ case 135 /* QualifiedName */:
+ return node;
+ }
+ }
+ return undefined;
+ }
+ ts.getEntityNameFromTypeNode = getEntityNameFromTypeNode;
+ function getInvokedExpression(node) {
+ if (node.kind === 170 /* TaggedTemplateExpression */) {
+ return node.tag;
+ }
+ // Will either be a CallExpression, NewExpression, or Decorator.
+ return node.expression;
+ }
+ ts.getInvokedExpression = getInvokedExpression;
+ function nodeCanBeDecorated(node) {
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ // classes are valid targets
+ return true;
+ case 141 /* PropertyDeclaration */:
+ // property declarations are valid if their parent is a class declaration.
+ return node.parent.kind === 214 /* ClassDeclaration */;
+ case 138 /* Parameter */:
+ // if the parameter's parent has a body and its grandparent is a class declaration, this is a valid target;
+ return node.parent.body && node.parent.parent.kind === 214 /* ClassDeclaration */;
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 143 /* MethodDeclaration */:
+ // if this method has a body and its parent is a class declaration, this is a valid target.
+ return node.body && node.parent.kind === 214 /* ClassDeclaration */;
+ }
+ return false;
+ }
+ ts.nodeCanBeDecorated = nodeCanBeDecorated;
+ function nodeIsDecorated(node) {
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ if (node.decorators) {
+ return true;
+ }
+ return false;
+ case 141 /* PropertyDeclaration */:
+ case 138 /* Parameter */:
+ if (node.decorators) {
+ return true;
+ }
+ return false;
+ case 145 /* GetAccessor */:
+ if (node.body && node.decorators) {
+ return true;
+ }
+ return false;
+ case 143 /* MethodDeclaration */:
+ case 146 /* SetAccessor */:
+ if (node.body && node.decorators) {
+ return true;
+ }
+ return false;
+ }
+ return false;
+ }
+ ts.nodeIsDecorated = nodeIsDecorated;
+ function childIsDecorated(node) {
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ return ts.forEach(node.members, nodeOrChildIsDecorated);
+ case 143 /* MethodDeclaration */:
+ case 146 /* SetAccessor */:
+ return ts.forEach(node.parameters, nodeIsDecorated);
+ }
+ return false;
+ }
+ ts.childIsDecorated = childIsDecorated;
+ function nodeOrChildIsDecorated(node) {
+ return nodeIsDecorated(node) || childIsDecorated(node);
+ }
+ ts.nodeOrChildIsDecorated = nodeOrChildIsDecorated;
+ function isPropertyAccessExpression(node) {
+ return node.kind === 166 /* PropertyAccessExpression */;
+ }
+ ts.isPropertyAccessExpression = isPropertyAccessExpression;
+ function isElementAccessExpression(node) {
+ return node.kind === 167 /* ElementAccessExpression */;
+ }
+ ts.isElementAccessExpression = isElementAccessExpression;
+ function isExpression(node) {
+ switch (node.kind) {
+ case 95 /* SuperKeyword */:
+ case 93 /* NullKeyword */:
+ case 99 /* TrueKeyword */:
+ case 84 /* FalseKeyword */:
+ case 10 /* RegularExpressionLiteral */:
+ case 164 /* ArrayLiteralExpression */:
+ case 165 /* ObjectLiteralExpression */:
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 170 /* TaggedTemplateExpression */:
+ case 189 /* AsExpression */:
+ case 171 /* TypeAssertionExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 173 /* FunctionExpression */:
+ case 186 /* ClassExpression */:
+ case 174 /* ArrowFunction */:
+ case 177 /* VoidExpression */:
+ case 175 /* DeleteExpression */:
+ case 176 /* TypeOfExpression */:
+ case 179 /* PrefixUnaryExpression */:
+ case 180 /* PostfixUnaryExpression */:
+ case 181 /* BinaryExpression */:
+ case 182 /* ConditionalExpression */:
+ case 185 /* SpreadElementExpression */:
+ case 183 /* TemplateExpression */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ case 187 /* OmittedExpression */:
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 184 /* YieldExpression */:
+ case 178 /* AwaitExpression */:
+ return true;
+ case 135 /* QualifiedName */:
+ while (node.parent.kind === 135 /* QualifiedName */) {
+ node = node.parent;
+ }
+ return node.parent.kind === 154 /* TypeQuery */;
+ case 69 /* Identifier */:
+ if (node.parent.kind === 154 /* TypeQuery */) {
+ return true;
+ }
+ // fall through
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ case 97 /* ThisKeyword */:
+ var parent_2 = node.parent;
+ switch (parent_2.kind) {
+ case 211 /* VariableDeclaration */:
+ case 138 /* Parameter */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 247 /* EnumMember */:
+ case 245 /* PropertyAssignment */:
+ case 163 /* BindingElement */:
+ return parent_2.initializer === node;
+ case 195 /* ExpressionStatement */:
+ case 196 /* IfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 204 /* ReturnStatement */:
+ case 205 /* WithStatement */:
+ case 206 /* SwitchStatement */:
+ case 241 /* CaseClause */:
+ case 208 /* ThrowStatement */:
+ case 206 /* SwitchStatement */:
+ return parent_2.expression === node;
+ case 199 /* ForStatement */:
+ var forStatement = parent_2;
+ return (forStatement.initializer === node && forStatement.initializer.kind !== 212 /* VariableDeclarationList */) ||
+ forStatement.condition === node ||
+ forStatement.incrementor === node;
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ var forInStatement = parent_2;
+ return (forInStatement.initializer === node && forInStatement.initializer.kind !== 212 /* VariableDeclarationList */) ||
+ forInStatement.expression === node;
+ case 171 /* TypeAssertionExpression */:
+ case 189 /* AsExpression */:
+ return node === parent_2.expression;
+ case 190 /* TemplateSpan */:
+ return node === parent_2.expression;
+ case 136 /* ComputedPropertyName */:
+ return node === parent_2.expression;
+ case 139 /* Decorator */:
+ case 240 /* JsxExpression */:
+ case 239 /* JsxSpreadAttribute */:
+ return true;
+ case 188 /* ExpressionWithTypeArguments */:
+ return parent_2.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_2);
+ default:
+ if (isExpression(parent_2)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ ts.isExpression = isExpression;
+ function isExternalModuleNameRelative(moduleName) {
+ // TypeScript 1.0 spec (April 2014): 11.2.1
+ // An external module name is "relative" if the first term is "." or "..".
+ return moduleName.substr(0, 2) === "./" || moduleName.substr(0, 3) === "../" || moduleName.substr(0, 2) === ".\\" || moduleName.substr(0, 3) === "..\\";
+ }
+ ts.isExternalModuleNameRelative = isExternalModuleNameRelative;
+ function isInstantiatedModule(node, preserveConstEnums) {
+ var moduleState = ts.getModuleInstanceState(node);
+ return moduleState === 1 /* Instantiated */ ||
+ (preserveConstEnums && moduleState === 2 /* ConstEnumOnly */);
+ }
+ ts.isInstantiatedModule = isInstantiatedModule;
+ function isExternalModuleImportEqualsDeclaration(node) {
+ return node.kind === 221 /* ImportEqualsDeclaration */ && node.moduleReference.kind === 232 /* ExternalModuleReference */;
+ }
+ ts.isExternalModuleImportEqualsDeclaration = isExternalModuleImportEqualsDeclaration;
+ function getExternalModuleImportEqualsDeclarationExpression(node) {
+ ts.Debug.assert(isExternalModuleImportEqualsDeclaration(node));
+ return node.moduleReference.expression;
+ }
+ ts.getExternalModuleImportEqualsDeclarationExpression = getExternalModuleImportEqualsDeclarationExpression;
+ function isInternalModuleImportEqualsDeclaration(node) {
+ return node.kind === 221 /* ImportEqualsDeclaration */ && node.moduleReference.kind !== 232 /* ExternalModuleReference */;
+ }
+ ts.isInternalModuleImportEqualsDeclaration = isInternalModuleImportEqualsDeclaration;
+ function getExternalModuleName(node) {
+ if (node.kind === 222 /* ImportDeclaration */) {
+ return node.moduleSpecifier;
+ }
+ if (node.kind === 221 /* ImportEqualsDeclaration */) {
+ var reference = node.moduleReference;
+ if (reference.kind === 232 /* ExternalModuleReference */) {
+ return reference.expression;
+ }
+ }
+ if (node.kind === 228 /* ExportDeclaration */) {
+ return node.moduleSpecifier;
+ }
+ }
+ ts.getExternalModuleName = getExternalModuleName;
+ function hasQuestionToken(node) {
+ if (node) {
+ switch (node.kind) {
+ case 138 /* Parameter */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 246 /* ShorthandPropertyAssignment */:
+ case 245 /* PropertyAssignment */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return node.questionToken !== undefined;
+ }
+ }
+ return false;
+ }
+ ts.hasQuestionToken = hasQuestionToken;
+ function isJSDocConstructSignature(node) {
+ return node.kind === 261 /* JSDocFunctionType */ &&
+ node.parameters.length > 0 &&
+ node.parameters[0].type.kind === 263 /* JSDocConstructorType */;
+ }
+ ts.isJSDocConstructSignature = isJSDocConstructSignature;
+ function getJSDocTag(node, kind) {
+ if (node && node.jsDocComment) {
+ for (var _i = 0, _a = node.jsDocComment.tags; _i < _a.length; _i++) {
+ var tag = _a[_i];
+ if (tag.kind === kind) {
+ return tag;
+ }
+ }
+ }
+ }
+ function getJSDocTypeTag(node) {
+ return getJSDocTag(node, 269 /* JSDocTypeTag */);
+ }
+ ts.getJSDocTypeTag = getJSDocTypeTag;
+ function getJSDocReturnTag(node) {
+ return getJSDocTag(node, 268 /* JSDocReturnTag */);
+ }
+ ts.getJSDocReturnTag = getJSDocReturnTag;
+ function getJSDocTemplateTag(node) {
+ return getJSDocTag(node, 270 /* JSDocTemplateTag */);
+ }
+ ts.getJSDocTemplateTag = getJSDocTemplateTag;
+ function getCorrespondingJSDocParameterTag(parameter) {
+ if (parameter.name && parameter.name.kind === 69 /* Identifier */) {
+ // If it's a parameter, see if the parent has a jsdoc comment with an @param
+ // annotation.
+ var parameterName = parameter.name.text;
+ var docComment = parameter.parent.jsDocComment;
+ if (docComment) {
+ return ts.forEach(docComment.tags, function (t) {
+ if (t.kind === 267 /* JSDocParameterTag */) {
+ var parameterTag = t;
+ var name_6 = parameterTag.preParameterName || parameterTag.postParameterName;
+ if (name_6.text === parameterName) {
+ return t;
+ }
+ }
+ });
+ }
+ }
+ }
+ ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
+ function hasRestParameter(s) {
+ return isRestParameter(ts.lastOrUndefined(s.parameters));
+ }
+ ts.hasRestParameter = hasRestParameter;
+ function isRestParameter(node) {
+ if (node) {
+ if (node.parserContextFlags & 32 /* JavaScriptFile */) {
+ if (node.type && node.type.kind === 262 /* JSDocVariadicType */) {
+ return true;
+ }
+ var paramTag = getCorrespondingJSDocParameterTag(node);
+ if (paramTag && paramTag.typeExpression) {
+ return paramTag.typeExpression.type.kind === 262 /* JSDocVariadicType */;
+ }
+ }
+ return node.dotDotDotToken !== undefined;
+ }
+ return false;
+ }
+ ts.isRestParameter = isRestParameter;
+ function isLiteralKind(kind) {
+ return 8 /* FirstLiteralToken */ <= kind && kind <= 11 /* LastLiteralToken */;
+ }
+ ts.isLiteralKind = isLiteralKind;
+ function isTextualLiteralKind(kind) {
+ return kind === 9 /* StringLiteral */ || kind === 11 /* NoSubstitutionTemplateLiteral */;
+ }
+ ts.isTextualLiteralKind = isTextualLiteralKind;
+ function isTemplateLiteralKind(kind) {
+ return 11 /* FirstTemplateToken */ <= kind && kind <= 14 /* LastTemplateToken */;
+ }
+ ts.isTemplateLiteralKind = isTemplateLiteralKind;
+ function isBindingPattern(node) {
+ return !!node && (node.kind === 162 /* ArrayBindingPattern */ || node.kind === 161 /* ObjectBindingPattern */);
+ }
+ ts.isBindingPattern = isBindingPattern;
+ function isNodeDescendentOf(node, ancestor) {
+ while (node) {
+ if (node === ancestor)
+ return true;
+ node = node.parent;
+ }
+ return false;
+ }
+ ts.isNodeDescendentOf = isNodeDescendentOf;
+ function isInAmbientContext(node) {
+ while (node) {
+ if (node.flags & (2 /* Ambient */ | 8192 /* DeclarationFile */)) {
+ return true;
+ }
+ node = node.parent;
+ }
+ return false;
+ }
+ ts.isInAmbientContext = isInAmbientContext;
+ function isDeclaration(node) {
+ switch (node.kind) {
+ case 174 /* ArrowFunction */:
+ case 163 /* BindingElement */:
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 144 /* Constructor */:
+ case 217 /* EnumDeclaration */:
+ case 247 /* EnumMember */:
+ case 230 /* ExportSpecifier */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 145 /* GetAccessor */:
+ case 223 /* ImportClause */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 226 /* ImportSpecifier */:
+ case 215 /* InterfaceDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 218 /* ModuleDeclaration */:
+ case 224 /* NamespaceImport */:
+ case 138 /* Parameter */:
+ case 245 /* PropertyAssignment */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 146 /* SetAccessor */:
+ case 246 /* ShorthandPropertyAssignment */:
+ case 216 /* TypeAliasDeclaration */:
+ case 137 /* TypeParameter */:
+ case 211 /* VariableDeclaration */:
+ return true;
+ }
+ return false;
+ }
+ ts.isDeclaration = isDeclaration;
+ function isStatement(n) {
+ switch (n.kind) {
+ case 203 /* BreakStatement */:
+ case 202 /* ContinueStatement */:
+ case 210 /* DebuggerStatement */:
+ case 197 /* DoStatement */:
+ case 195 /* ExpressionStatement */:
+ case 194 /* EmptyStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 199 /* ForStatement */:
+ case 196 /* IfStatement */:
+ case 207 /* LabeledStatement */:
+ case 204 /* ReturnStatement */:
+ case 206 /* SwitchStatement */:
+ case 98 /* ThrowKeyword */:
+ case 209 /* TryStatement */:
+ case 193 /* VariableStatement */:
+ case 198 /* WhileStatement */:
+ case 205 /* WithStatement */:
+ case 227 /* ExportAssignment */:
+ return true;
+ default:
+ return false;
+ }
+ }
+ ts.isStatement = isStatement;
+ function isClassElement(n) {
+ switch (n.kind) {
+ case 144 /* Constructor */:
+ case 141 /* PropertyDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 142 /* MethodSignature */:
+ case 149 /* IndexSignature */:
+ return true;
+ default:
+ return false;
+ }
+ }
+ ts.isClassElement = isClassElement;
+ // True if the given identifier, string literal, or number literal is the name of a declaration node
+ function isDeclarationName(name) {
+ if (name.kind !== 69 /* Identifier */ && name.kind !== 9 /* StringLiteral */ && name.kind !== 8 /* NumericLiteral */) {
+ return false;
+ }
+ var parent = name.parent;
+ if (parent.kind === 226 /* ImportSpecifier */ || parent.kind === 230 /* ExportSpecifier */) {
+ if (parent.propertyName) {
+ return true;
+ }
+ }
+ if (isDeclaration(parent)) {
+ return parent.name === name;
+ }
+ return false;
+ }
+ ts.isDeclarationName = isDeclarationName;
+ // Return true if the given identifier is classified as an IdentifierName
+ function isIdentifierName(node) {
+ var parent = node.parent;
+ switch (parent.kind) {
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 247 /* EnumMember */:
+ case 245 /* PropertyAssignment */:
+ case 166 /* PropertyAccessExpression */:
+ // Name in member declaration or property name in property access
+ return parent.name === node;
+ case 135 /* QualifiedName */:
+ // Name on right hand side of dot in a type query
+ if (parent.right === node) {
+ while (parent.kind === 135 /* QualifiedName */) {
+ parent = parent.parent;
+ }
+ return parent.kind === 154 /* TypeQuery */;
+ }
+ return false;
+ case 163 /* BindingElement */:
+ case 226 /* ImportSpecifier */:
+ // Property name in binding element or import specifier
+ return parent.propertyName === node;
+ case 230 /* ExportSpecifier */:
+ // Any name in an export specifier
+ return true;
+ }
+ return false;
+ }
+ ts.isIdentifierName = isIdentifierName;
+ // An alias symbol is created by one of the following declarations:
+ // import <symbol> = ...
+ // import <symbol> from ...
+ // import * as <symbol> from ...
+ // import { x as <symbol> } from ...
+ // export { x as <symbol> } from ...
+ // export = ...
+ // export default ...
+ function isAliasSymbolDeclaration(node) {
+ return node.kind === 221 /* ImportEqualsDeclaration */ ||
+ node.kind === 223 /* ImportClause */ && !!node.name ||
+ node.kind === 224 /* NamespaceImport */ ||
+ node.kind === 226 /* ImportSpecifier */ ||
+ node.kind === 230 /* ExportSpecifier */ ||
+ node.kind === 227 /* ExportAssignment */ && node.expression.kind === 69 /* Identifier */;
+ }
+ ts.isAliasSymbolDeclaration = isAliasSymbolDeclaration;
+ function getClassExtendsHeritageClauseElement(node) {
+ var heritageClause = getHeritageClause(node.heritageClauses, 83 /* ExtendsKeyword */);
+ return heritageClause && heritageClause.types.length > 0 ? heritageClause.types[0] : undefined;
+ }
+ ts.getClassExtendsHeritageClauseElement = getClassExtendsHeritageClauseElement;
+ function getClassImplementsHeritageClauseElements(node) {
+ var heritageClause = getHeritageClause(node.heritageClauses, 106 /* ImplementsKeyword */);
+ return heritageClause ? heritageClause.types : undefined;
+ }
+ ts.getClassImplementsHeritageClauseElements = getClassImplementsHeritageClauseElements;
+ function getInterfaceBaseTypeNodes(node) {
+ var heritageClause = getHeritageClause(node.heritageClauses, 83 /* ExtendsKeyword */);
+ return heritageClause ? heritageClause.types : undefined;
+ }
+ ts.getInterfaceBaseTypeNodes = getInterfaceBaseTypeNodes;
+ function getHeritageClause(clauses, kind) {
+ if (clauses) {
+ for (var _i = 0; _i < clauses.length; _i++) {
+ var clause = clauses[_i];
+ if (clause.token === kind) {
+ return clause;
+ }
+ }
+ }
+ return undefined;
+ }
+ ts.getHeritageClause = getHeritageClause;
+ function tryResolveScriptReference(host, sourceFile, reference) {
+ if (!host.getCompilerOptions().noResolve) {
+ var referenceFileName = ts.isRootedDiskPath(reference.fileName) ? reference.fileName : ts.combinePaths(ts.getDirectoryPath(sourceFile.fileName), reference.fileName);
+ referenceFileName = ts.getNormalizedAbsolutePath(referenceFileName, host.getCurrentDirectory());
+ return host.getSourceFile(referenceFileName);
+ }
+ }
+ ts.tryResolveScriptReference = tryResolveScriptReference;
+ function getAncestor(node, kind) {
+ while (node) {
+ if (node.kind === kind) {
+ return node;
+ }
+ node = node.parent;
+ }
+ return undefined;
+ }
+ ts.getAncestor = getAncestor;
+ function getFileReferenceFromReferencePath(comment, commentRange) {
+ var simpleReferenceRegEx = /^\/\/\/\s*<reference\s+/gim;
+ var isNoDefaultLibRegEx = /^(\/\/\/\s*<reference\s+no-default-lib\s*=\s*)('|")(.+?)\2\s*\/>/gim;
+ if (simpleReferenceRegEx.exec(comment)) {
+ if (isNoDefaultLibRegEx.exec(comment)) {
+ return {
+ isNoDefaultLib: true
+ };
+ }
+ else {
+ var matchResult = ts.fullTripleSlashReferencePathRegEx.exec(comment);
+ if (matchResult) {
+ var start = commentRange.pos;
+ var end = commentRange.end;
+ return {
+ fileReference: {
+ pos: start,
+ end: end,
+ fileName: matchResult[3]
+ },
+ isNoDefaultLib: false
+ };
+ }
+ else {
+ return {
+ diagnosticMessage: ts.Diagnostics.Invalid_reference_directive_syntax,
+ isNoDefaultLib: false
+ };
+ }
+ }
+ }
+ return undefined;
+ }
+ ts.getFileReferenceFromReferencePath = getFileReferenceFromReferencePath;
+ function isKeyword(token) {
+ return 70 /* FirstKeyword */ <= token && token <= 134 /* LastKeyword */;
+ }
+ ts.isKeyword = isKeyword;
+ function isTrivia(token) {
+ return 2 /* FirstTriviaToken */ <= token && token <= 7 /* LastTriviaToken */;
+ }
+ ts.isTrivia = isTrivia;
+ function isAsyncFunctionLike(node) {
+ return isFunctionLike(node) && (node.flags & 512 /* Async */) !== 0 && !isAccessor(node);
+ }
+ ts.isAsyncFunctionLike = isAsyncFunctionLike;
+ /**
+ * A declaration has a dynamic name if both of the following are true:
+ * 1. The declaration has a computed property name
+ * 2. The computed name is *not* expressed as Symbol.<name>, where name
+ * is a property of the Symbol constructor that denotes a built in
+ * Symbol.
+ */
+ function hasDynamicName(declaration) {
+ return declaration.name &&
+ declaration.name.kind === 136 /* ComputedPropertyName */ &&
+ !isWellKnownSymbolSyntactically(declaration.name.expression);
+ }
+ ts.hasDynamicName = hasDynamicName;
+ /**
+ * Checks if the expression is of the form:
+ * Symbol.name
+ * where Symbol is literally the word "Symbol", and name is any identifierName
+ */
+ function isWellKnownSymbolSyntactically(node) {
+ return isPropertyAccessExpression(node) && isESSymbolIdentifier(node.expression);
+ }
+ ts.isWellKnownSymbolSyntactically = isWellKnownSymbolSyntactically;
+ function getPropertyNameForPropertyNameNode(name) {
+ if (name.kind === 69 /* Identifier */ || name.kind === 9 /* StringLiteral */ || name.kind === 8 /* NumericLiteral */) {
+ return name.text;
+ }
+ if (name.kind === 136 /* ComputedPropertyName */) {
+ var nameExpression = name.expression;
+ if (isWellKnownSymbolSyntactically(nameExpression)) {
+ var rightHandSideName = nameExpression.name.text;
+ return getPropertyNameForKnownSymbolName(rightHandSideName);
+ }
+ }
+ return undefined;
+ }
+ ts.getPropertyNameForPropertyNameNode = getPropertyNameForPropertyNameNode;
+ function getPropertyNameForKnownSymbolName(symbolName) {
+ return "__@" + symbolName;
+ }
+ ts.getPropertyNameForKnownSymbolName = getPropertyNameForKnownSymbolName;
+ /**
+ * Includes the word "Symbol" with unicode escapes
+ */
+ function isESSymbolIdentifier(node) {
+ return node.kind === 69 /* Identifier */ && node.text === "Symbol";
+ }
+ ts.isESSymbolIdentifier = isESSymbolIdentifier;
+ function isModifier(token) {
+ switch (token) {
+ case 115 /* AbstractKeyword */:
+ case 118 /* AsyncKeyword */:
+ case 74 /* ConstKeyword */:
+ case 122 /* DeclareKeyword */:
+ case 77 /* DefaultKeyword */:
+ case 82 /* ExportKeyword */:
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 113 /* StaticKeyword */:
+ return true;
+ }
+ return false;
+ }
+ ts.isModifier = isModifier;
+ function isParameterDeclaration(node) {
+ var root = getRootDeclaration(node);
+ return root.kind === 138 /* Parameter */;
+ }
+ ts.isParameterDeclaration = isParameterDeclaration;
+ function getRootDeclaration(node) {
+ while (node.kind === 163 /* BindingElement */) {
+ node = node.parent.parent;
+ }
+ return node;
+ }
+ ts.getRootDeclaration = getRootDeclaration;
+ function nodeStartsNewLexicalEnvironment(n) {
+ return isFunctionLike(n) || n.kind === 218 /* ModuleDeclaration */ || n.kind === 248 /* SourceFile */;
+ }
+ ts.nodeStartsNewLexicalEnvironment = nodeStartsNewLexicalEnvironment;
+ function cloneEntityName(node) {
+ if (node.kind === 69 /* Identifier */) {
+ var clone_1 = createSynthesizedNode(69 /* Identifier */);
+ clone_1.text = node.text;
+ return clone_1;
+ }
+ else {
+ var clone_2 = createSynthesizedNode(135 /* QualifiedName */);
+ clone_2.left = cloneEntityName(node.left);
+ clone_2.left.parent = clone_2;
+ clone_2.right = cloneEntityName(node.right);
+ clone_2.right.parent = clone_2;
+ return clone_2;
+ }
+ }
+ ts.cloneEntityName = cloneEntityName;
+ function nodeIsSynthesized(node) {
+ return node.pos === -1;
+ }
+ ts.nodeIsSynthesized = nodeIsSynthesized;
+ function createSynthesizedNode(kind, startsOnNewLine) {
+ var node = ts.createNode(kind);
+ node.startsOnNewLine = startsOnNewLine;
+ return node;
+ }
+ ts.createSynthesizedNode = createSynthesizedNode;
+ function createSynthesizedNodeArray() {
+ var array = [];
+ array.pos = -1;
+ array.end = -1;
+ return array;
+ }
+ ts.createSynthesizedNodeArray = createSynthesizedNodeArray;
+ function createDiagnosticCollection() {
+ var nonFileDiagnostics = [];
+ var fileDiagnostics = {};
+ var diagnosticsModified = false;
+ var modificationCount = 0;
+ return {
+ add: add,
+ getGlobalDiagnostics: getGlobalDiagnostics,
+ getDiagnostics: getDiagnostics,
+ getModificationCount: getModificationCount,
+ reattachFileDiagnostics: reattachFileDiagnostics
+ };
+ function getModificationCount() {
+ return modificationCount;
+ }
+ function reattachFileDiagnostics(newFile) {
+ if (!ts.hasProperty(fileDiagnostics, newFile.fileName)) {
+ return;
+ }
+ for (var _i = 0, _a = fileDiagnostics[newFile.fileName]; _i < _a.length; _i++) {
+ var diagnostic = _a[_i];
+ diagnostic.file = newFile;
+ }
+ }
+ function add(diagnostic) {
+ var diagnostics;
+ if (diagnostic.file) {
+ diagnostics = fileDiagnostics[diagnostic.file.fileName];
+ if (!diagnostics) {
+ diagnostics = [];
+ fileDiagnostics[diagnostic.file.fileName] = diagnostics;
+ }
+ }
+ else {
+ diagnostics = nonFileDiagnostics;
+ }
+ diagnostics.push(diagnostic);
+ diagnosticsModified = true;
+ modificationCount++;
+ }
+ function getGlobalDiagnostics() {
+ sortAndDeduplicate();
+ return nonFileDiagnostics;
+ }
+ function getDiagnostics(fileName) {
+ sortAndDeduplicate();
+ if (fileName) {
+ return fileDiagnostics[fileName] || [];
+ }
+ var allDiagnostics = [];
+ function pushDiagnostic(d) {
+ allDiagnostics.push(d);
+ }
+ ts.forEach(nonFileDiagnostics, pushDiagnostic);
+ for (var key in fileDiagnostics) {
+ if (ts.hasProperty(fileDiagnostics, key)) {
+ ts.forEach(fileDiagnostics[key], pushDiagnostic);
+ }
+ }
+ return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
+ }
+ function sortAndDeduplicate() {
+ if (!diagnosticsModified) {
+ return;
+ }
+ diagnosticsModified = false;
+ nonFileDiagnostics = ts.sortAndDeduplicateDiagnostics(nonFileDiagnostics);
+ for (var key in fileDiagnostics) {
+ if (ts.hasProperty(fileDiagnostics, key)) {
+ fileDiagnostics[key] = ts.sortAndDeduplicateDiagnostics(fileDiagnostics[key]);
+ }
+ }
+ }
+ }
+ ts.createDiagnosticCollection = createDiagnosticCollection;
+ // This consists of the first 19 unprintable ASCII characters, canonical escapes, lineSeparator,
+ // paragraphSeparator, and nextLine. The latter three are just desirable to suppress new lines in
+ // the language service. These characters should be escaped when printing, and if any characters are added,
+ // the map below must be updated. Note that this regexp *does not* include the 'delete' character.
+ // There is no reason for this other than that JSON.stringify does not handle it either.
+ var escapedCharsRegExp = /[\\\"\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
+ var escapedCharsMap = {
+ "\0": "\\0",
+ "\t": "\\t",
+ "\v": "\\v",
+ "\f": "\\f",
+ "\b": "\\b",
+ "\r": "\\r",
+ "\n": "\\n",
+ "\\": "\\\\",
+ "\"": "\\\"",
+ "\u2028": "\\u2028",
+ "\u2029": "\\u2029",
+ "\u0085": "\\u0085" // nextLine
+ };
+ /**
+ * Based heavily on the abstract 'Quote'/'QuoteJSONString' operation from ECMA-262 (24.3.2.2),
+ * but augmented for a few select characters (e.g. lineSeparator, paragraphSeparator, nextLine)
+ * Note that this doesn't actually wrap the input in double quotes.
+ */
+ function escapeString(s) {
+ s = escapedCharsRegExp.test(s) ? s.replace(escapedCharsRegExp, getReplacement) : s;
+ return s;
+ function getReplacement(c) {
+ return escapedCharsMap[c] || get16BitUnicodeEscapeSequence(c.charCodeAt(0));
+ }
+ }
+ ts.escapeString = escapeString;
+ function isIntrinsicJsxName(name) {
+ var ch = name.substr(0, 1);
+ return ch.toLowerCase() === ch;
+ }
+ ts.isIntrinsicJsxName = isIntrinsicJsxName;
+ function get16BitUnicodeEscapeSequence(charCode) {
+ var hexCharCode = charCode.toString(16).toUpperCase();
+ var paddedHexCode = ("0000" + hexCharCode).slice(-4);
+ return "\\u" + paddedHexCode;
+ }
+ var nonAsciiCharacters = /[^\u0000-\u007F]/g;
+ function escapeNonAsciiCharacters(s) {
+ // Replace non-ASCII characters with '\uNNNN' escapes if any exist.
+ // Otherwise just return the original string.
+ return nonAsciiCharacters.test(s) ?
+ s.replace(nonAsciiCharacters, function (c) { return get16BitUnicodeEscapeSequence(c.charCodeAt(0)); }) :
+ s;
+ }
+ ts.escapeNonAsciiCharacters = escapeNonAsciiCharacters;
+ var indentStrings = ["", " "];
+ function getIndentString(level) {
+ if (indentStrings[level] === undefined) {
+ indentStrings[level] = getIndentString(level - 1) + indentStrings[1];
+ }
+ return indentStrings[level];
+ }
+ ts.getIndentString = getIndentString;
+ function getIndentSize() {
+ return indentStrings[1].length;
+ }
+ ts.getIndentSize = getIndentSize;
+ function createTextWriter(newLine) {
+ var output = "";
+ var indent = 0;
+ var lineStart = true;
+ var lineCount = 0;
+ var linePos = 0;
+ function write(s) {
+ if (s && s.length) {
+ if (lineStart) {
+ output += getIndentString(indent);
+ lineStart = false;
+ }
+ output += s;
+ }
+ }
+ function rawWrite(s) {
+ if (s !== undefined) {
+ if (lineStart) {
+ lineStart = false;
+ }
+ output += s;
+ }
+ }
+ function writeLiteral(s) {
+ if (s && s.length) {
+ write(s);
+ var lineStartsOfS = ts.computeLineStarts(s);
+ if (lineStartsOfS.length > 1) {
+ lineCount = lineCount + lineStartsOfS.length - 1;
+ linePos = output.length - s.length + ts.lastOrUndefined(lineStartsOfS);
+ }
+ }
+ }
+ function writeLine() {
+ if (!lineStart) {
+ output += newLine;
+ lineCount++;
+ linePos = output.length;
+ lineStart = true;
+ }
+ }
+ function writeTextOfNode(sourceFile, node) {
+ write(getSourceTextOfNodeFromSourceFile(sourceFile, node));
+ }
+ return {
+ write: write,
+ rawWrite: rawWrite,
+ writeTextOfNode: writeTextOfNode,
+ writeLiteral: writeLiteral,
+ writeLine: writeLine,
+ increaseIndent: function () { return indent++; },
+ decreaseIndent: function () { return indent--; },
+ getIndent: function () { return indent; },
+ getTextPos: function () { return output.length; },
+ getLine: function () { return lineCount + 1; },
+ getColumn: function () { return lineStart ? indent * getIndentSize() + 1 : output.length - linePos + 1; },
+ getText: function () { return output; }
+ };
+ }
+ ts.createTextWriter = createTextWriter;
+ function getOwnEmitOutputFilePath(sourceFile, host, extension) {
+ var compilerOptions = host.getCompilerOptions();
+ var emitOutputFilePathWithoutExtension;
+ if (compilerOptions.outDir) {
+ emitOutputFilePathWithoutExtension = ts.removeFileExtension(getSourceFilePathInNewDir(sourceFile, host, compilerOptions.outDir));
+ }
+ else {
+ emitOutputFilePathWithoutExtension = ts.removeFileExtension(sourceFile.fileName);
+ }
+ return emitOutputFilePathWithoutExtension + extension;
+ }
+ ts.getOwnEmitOutputFilePath = getOwnEmitOutputFilePath;
+ function getSourceFilePathInNewDir(sourceFile, host, newDirPath) {
+ var sourceFilePath = ts.getNormalizedAbsolutePath(sourceFile.fileName, host.getCurrentDirectory());
+ sourceFilePath = sourceFilePath.replace(host.getCommonSourceDirectory(), "");
+ return ts.combinePaths(newDirPath, sourceFilePath);
+ }
+ ts.getSourceFilePathInNewDir = getSourceFilePathInNewDir;
+ function writeFile(host, diagnostics, fileName, data, writeByteOrderMark) {
+ host.writeFile(fileName, data, writeByteOrderMark, function (hostErrorMessage) {
+ diagnostics.push(ts.createCompilerDiagnostic(ts.Diagnostics.Could_not_write_file_0_Colon_1, fileName, hostErrorMessage));
+ });
+ }
+ ts.writeFile = writeFile;
+ function getLineOfLocalPosition(currentSourceFile, pos) {
+ return ts.getLineAndCharacterOfPosition(currentSourceFile, pos).line;
+ }
+ ts.getLineOfLocalPosition = getLineOfLocalPosition;
+ function getFirstConstructorWithBody(node) {
+ return ts.forEach(node.members, function (member) {
+ if (member.kind === 144 /* Constructor */ && nodeIsPresent(member.body)) {
+ return member;
+ }
+ });
+ }
+ ts.getFirstConstructorWithBody = getFirstConstructorWithBody;
+ function getSetAccessorTypeAnnotationNode(accessor) {
+ return accessor && accessor.parameters.length > 0 && accessor.parameters[0].type;
+ }
+ ts.getSetAccessorTypeAnnotationNode = getSetAccessorTypeAnnotationNode;
+ function shouldEmitToOwnFile(sourceFile, compilerOptions) {
+ if (!isDeclarationFile(sourceFile)) {
+ if ((isExternalModule(sourceFile) || !(compilerOptions.outFile || compilerOptions.out))) {
+ // 1. in-browser single file compilation scenario
+ // 2. non .js file
+ return compilerOptions.isolatedModules || !ts.fileExtensionIs(sourceFile.fileName, ".js");
+ }
+ return false;
+ }
+ return false;
+ }
+ ts.shouldEmitToOwnFile = shouldEmitToOwnFile;
+ function getAllAccessorDeclarations(declarations, accessor) {
+ var firstAccessor;
+ var secondAccessor;
+ var getAccessor;
+ var setAccessor;
+ if (hasDynamicName(accessor)) {
+ firstAccessor = accessor;
+ if (accessor.kind === 145 /* GetAccessor */) {
+ getAccessor = accessor;
+ }
+ else if (accessor.kind === 146 /* SetAccessor */) {
+ setAccessor = accessor;
+ }
+ else {
+ ts.Debug.fail("Accessor has wrong kind");
+ }
+ }
+ else {
+ ts.forEach(declarations, function (member) {
+ if ((member.kind === 145 /* GetAccessor */ || member.kind === 146 /* SetAccessor */)
+ && (member.flags & 128 /* Static */) === (accessor.flags & 128 /* Static */)) {
+ var memberName = getPropertyNameForPropertyNameNode(member.name);
+ var accessorName = getPropertyNameForPropertyNameNode(accessor.name);
+ if (memberName === accessorName) {
+ if (!firstAccessor) {
+ firstAccessor = member;
+ }
+ else if (!secondAccessor) {
+ secondAccessor = member;
+ }
+ if (member.kind === 145 /* GetAccessor */ && !getAccessor) {
+ getAccessor = member;
+ }
+ if (member.kind === 146 /* SetAccessor */ && !setAccessor) {
+ setAccessor = member;
+ }
+ }
+ }
+ });
+ }
+ return {
+ firstAccessor: firstAccessor,
+ secondAccessor: secondAccessor,
+ getAccessor: getAccessor,
+ setAccessor: setAccessor
+ };
+ }
+ ts.getAllAccessorDeclarations = getAllAccessorDeclarations;
+ function emitNewLineBeforeLeadingComments(currentSourceFile, writer, node, leadingComments) {
+ // If the leading comments start on different line than the start of node, write new line
+ if (leadingComments && leadingComments.length && node.pos !== leadingComments[0].pos &&
+ getLineOfLocalPosition(currentSourceFile, node.pos) !== getLineOfLocalPosition(currentSourceFile, leadingComments[0].pos)) {
+ writer.writeLine();
+ }
+ }
+ ts.emitNewLineBeforeLeadingComments = emitNewLineBeforeLeadingComments;
+ function emitComments(currentSourceFile, writer, comments, trailingSeparator, newLine, writeComment) {
+ var emitLeadingSpace = !trailingSeparator;
+ ts.forEach(comments, function (comment) {
+ if (emitLeadingSpace) {
+ writer.write(" ");
+ emitLeadingSpace = false;
+ }
+ writeComment(currentSourceFile, writer, comment, newLine);
+ if (comment.hasTrailingNewLine) {
+ writer.writeLine();
+ }
+ else if (trailingSeparator) {
+ writer.write(" ");
+ }
+ else {
+ // Emit leading space to separate comment during next comment emit
+ emitLeadingSpace = true;
+ }
+ });
+ }
+ ts.emitComments = emitComments;
+ function writeCommentRange(currentSourceFile, writer, comment, newLine) {
+ if (currentSourceFile.text.charCodeAt(comment.pos + 1) === 42 /* asterisk */) {
+ var firstCommentLineAndCharacter = ts.getLineAndCharacterOfPosition(currentSourceFile, comment.pos);
+ var lineCount = ts.getLineStarts(currentSourceFile).length;
+ var firstCommentLineIndent;
+ for (var pos = comment.pos, currentLine = firstCommentLineAndCharacter.line; pos < comment.end; currentLine++) {
+ var nextLineStart = (currentLine + 1) === lineCount
+ ? currentSourceFile.text.length + 1
+ : getStartPositionOfLine(currentLine + 1, currentSourceFile);
+ if (pos !== comment.pos) {
+ // If we are not emitting first line, we need to write the spaces to adjust the alignment
+ if (firstCommentLineIndent === undefined) {
+ firstCommentLineIndent = calculateIndent(getStartPositionOfLine(firstCommentLineAndCharacter.line, currentSourceFile), comment.pos);
+ }
+ // These are number of spaces writer is going to write at current indent
+ var currentWriterIndentSpacing = writer.getIndent() * getIndentSize();
+ // Number of spaces we want to be writing
+ // eg: Assume writer indent
+ // module m {
+ // /* starts at character 9 this is line 1
+ // * starts at character pos 4 line --1 = 8 - 8 + 3
+ // More left indented comment */ --2 = 8 - 8 + 2
+ // class c { }
+ // }
+ // module m {
+ // /* this is line 1 -- Assume current writer indent 8
+ // * line --3 = 8 - 4 + 5
+ // More right indented comment */ --4 = 8 - 4 + 11
+ // class c { }
+ // }
+ var spacesToEmit = currentWriterIndentSpacing - firstCommentLineIndent + calculateIndent(pos, nextLineStart);
+ if (spacesToEmit > 0) {
+ var numberOfSingleSpacesToEmit = spacesToEmit % getIndentSize();
+ var indentSizeSpaceString = getIndentString((spacesToEmit - numberOfSingleSpacesToEmit) / getIndentSize());
+ // Write indent size string ( in eg 1: = "", 2: "" , 3: string with 8 spaces 4: string with 12 spaces
+ writer.rawWrite(indentSizeSpaceString);
+ // Emit the single spaces (in eg: 1: 3 spaces, 2: 2 spaces, 3: 1 space, 4: 3 spaces)
+ while (numberOfSingleSpacesToEmit) {
+ writer.rawWrite(" ");
+ numberOfSingleSpacesToEmit--;
+ }
+ }
+ else {
+ // No spaces to emit write empty string
+ writer.rawWrite("");
+ }
+ }
+ // Write the comment line text
+ writeTrimmedCurrentLine(pos, nextLineStart);
+ pos = nextLineStart;
+ }
+ }
+ else {
+ // Single line comment of style //....
+ writer.write(currentSourceFile.text.substring(comment.pos, comment.end));
+ }
+ function writeTrimmedCurrentLine(pos, nextLineStart) {
+ var end = Math.min(comment.end, nextLineStart - 1);
+ var currentLineText = currentSourceFile.text.substring(pos, end).replace(/^\s+|\s+$/g, "");
+ if (currentLineText) {
+ // trimmed forward and ending spaces text
+ writer.write(currentLineText);
+ if (end !== comment.end) {
+ writer.writeLine();
+ }
+ }
+ else {
+ // Empty string - make sure we write empty line
+ writer.writeLiteral(newLine);
+ }
+ }
+ function calculateIndent(pos, end) {
+ var currentLineIndent = 0;
+ for (; pos < end && ts.isWhiteSpace(currentSourceFile.text.charCodeAt(pos)); pos++) {
+ if (currentSourceFile.text.charCodeAt(pos) === 9 /* tab */) {
+ // Tabs = TabSize = indent size and go to next tabStop
+ currentLineIndent += getIndentSize() - (currentLineIndent % getIndentSize());
+ }
+ else {
+ // Single space
+ currentLineIndent++;
+ }
+ }
+ return currentLineIndent;
+ }
+ }
+ ts.writeCommentRange = writeCommentRange;
+ function modifierToFlag(token) {
+ switch (token) {
+ case 113 /* StaticKeyword */: return 128 /* Static */;
+ case 112 /* PublicKeyword */: return 16 /* Public */;
+ case 111 /* ProtectedKeyword */: return 64 /* Protected */;
+ case 110 /* PrivateKeyword */: return 32 /* Private */;
+ case 115 /* AbstractKeyword */: return 256 /* Abstract */;
+ case 82 /* ExportKeyword */: return 1 /* Export */;
+ case 122 /* DeclareKeyword */: return 2 /* Ambient */;
+ case 74 /* ConstKeyword */: return 32768 /* Const */;
+ case 77 /* DefaultKeyword */: return 1024 /* Default */;
+ case 118 /* AsyncKeyword */: return 512 /* Async */;
+ }
+ return 0;
+ }
+ ts.modifierToFlag = modifierToFlag;
+ function isLeftHandSideExpression(expr) {
+ if (expr) {
+ switch (expr.kind) {
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ case 169 /* NewExpression */:
+ case 168 /* CallExpression */:
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 170 /* TaggedTemplateExpression */:
+ case 164 /* ArrayLiteralExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 165 /* ObjectLiteralExpression */:
+ case 186 /* ClassExpression */:
+ case 173 /* FunctionExpression */:
+ case 69 /* Identifier */:
+ case 10 /* RegularExpressionLiteral */:
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ case 183 /* TemplateExpression */:
+ case 84 /* FalseKeyword */:
+ case 93 /* NullKeyword */:
+ case 97 /* ThisKeyword */:
+ case 99 /* TrueKeyword */:
+ case 95 /* SuperKeyword */:
+ return true;
+ }
+ }
+ return false;
+ }
+ ts.isLeftHandSideExpression = isLeftHandSideExpression;
+ function isAssignmentOperator(token) {
+ return token >= 56 /* FirstAssignment */ && token <= 68 /* LastAssignment */;
+ }
+ ts.isAssignmentOperator = isAssignmentOperator;
+ function isExpressionWithTypeArgumentsInClassExtendsClause(node) {
+ return node.kind === 188 /* ExpressionWithTypeArguments */ &&
+ node.parent.token === 83 /* ExtendsKeyword */ &&
+ isClassLike(node.parent.parent);
+ }
+ ts.isExpressionWithTypeArgumentsInClassExtendsClause = isExpressionWithTypeArgumentsInClassExtendsClause;
+ // Returns false if this heritage clause element's expression contains something unsupported
+ // (i.e. not a name or dotted name).
+ function isSupportedExpressionWithTypeArguments(node) {
+ return isSupportedExpressionWithTypeArgumentsRest(node.expression);
+ }
+ ts.isSupportedExpressionWithTypeArguments = isSupportedExpressionWithTypeArguments;
+ function isSupportedExpressionWithTypeArgumentsRest(node) {
+ if (node.kind === 69 /* Identifier */) {
+ return true;
+ }
+ else if (isPropertyAccessExpression(node)) {
+ return isSupportedExpressionWithTypeArgumentsRest(node.expression);
+ }
+ else {
+ return false;
+ }
+ }
+ function isRightSideOfQualifiedNameOrPropertyAccess(node) {
+ return (node.parent.kind === 135 /* QualifiedName */ && node.parent.right === node) ||
+ (node.parent.kind === 166 /* PropertyAccessExpression */ && node.parent.name === node);
+ }
+ ts.isRightSideOfQualifiedNameOrPropertyAccess = isRightSideOfQualifiedNameOrPropertyAccess;
+ function isEmptyObjectLiteralOrArrayLiteral(expression) {
+ var kind = expression.kind;
+ if (kind === 165 /* ObjectLiteralExpression */) {
+ return expression.properties.length === 0;
+ }
+ if (kind === 164 /* ArrayLiteralExpression */) {
+ return expression.elements.length === 0;
+ }
+ return false;
+ }
+ ts.isEmptyObjectLiteralOrArrayLiteral = isEmptyObjectLiteralOrArrayLiteral;
+ function getLocalSymbolForExportDefault(symbol) {
+ return symbol && symbol.valueDeclaration && (symbol.valueDeclaration.flags & 1024 /* Default */) ? symbol.valueDeclaration.localSymbol : undefined;
+ }
+ ts.getLocalSymbolForExportDefault = getLocalSymbolForExportDefault;
+ function isJavaScript(fileName) {
+ return ts.fileExtensionIs(fileName, ".js");
+ }
+ ts.isJavaScript = isJavaScript;
+ function isTsx(fileName) {
+ return ts.fileExtensionIs(fileName, ".tsx");
+ }
+ ts.isTsx = isTsx;
+ /**
+ * Replace each instance of non-ascii characters by one, two, three, or four escape sequences
+ * representing the UTF-8 encoding of the character, and return the expanded char code list.
+ */
+ function getExpandedCharCodes(input) {
+ var output = [];
+ var length = input.length;
+ for (var i = 0; i < length; i++) {
+ var charCode = input.charCodeAt(i);
+ // handel utf8
+ if (charCode < 0x80) {
+ output.push(charCode);
+ }
+ else if (charCode < 0x800) {
+ output.push((charCode >> 6) | 192);
+ output.push((charCode & 63) | 128);
+ }
+ else if (charCode < 0x10000) {
+ output.push((charCode >> 12) | 224);
+ output.push(((charCode >> 6) & 63) | 128);
+ output.push((charCode & 63) | 128);
+ }
+ else if (charCode < 0x20000) {
+ output.push((charCode >> 18) | 240);
+ output.push(((charCode >> 12) & 63) | 128);
+ output.push(((charCode >> 6) & 63) | 128);
+ output.push((charCode & 63) | 128);
+ }
+ else {
+ ts.Debug.assert(false, "Unexpected code point");
+ }
+ }
+ return output;
+ }
+ var base64Digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+ /**
+ * Converts a string to a base-64 encoded ASCII string.
+ */
+ function convertToBase64(input) {
+ var result = "";
+ var charCodes = getExpandedCharCodes(input);
+ var i = 0;
+ var length = charCodes.length;
+ var byte1, byte2, byte3, byte4;
+ while (i < length) {
+ // Convert every 6-bits in the input 3 character points
+ // into a base64 digit
+ byte1 = charCodes[i] >> 2;
+ byte2 = (charCodes[i] & 3) << 4 | charCodes[i + 1] >> 4;
+ byte3 = (charCodes[i + 1] & 15) << 2 | charCodes[i + 2] >> 6;
+ byte4 = charCodes[i + 2] & 63;
+ // We are out of characters in the input, set the extra
+ // digits to 64 (padding character).
+ if (i + 1 >= length) {
+ byte3 = byte4 = 64;
+ }
+ else if (i + 2 >= length) {
+ byte4 = 64;
+ }
+ // Write to the ouput
+ result += base64Digits.charAt(byte1) + base64Digits.charAt(byte2) + base64Digits.charAt(byte3) + base64Digits.charAt(byte4);
+ i += 3;
+ }
+ return result;
+ }
+ ts.convertToBase64 = convertToBase64;
+ var carriageReturnLineFeed = "\r\n";
+ var lineFeed = "\n";
+ function getNewLineCharacter(options) {
+ if (options.newLine === 0 /* CarriageReturnLineFeed */) {
+ return carriageReturnLineFeed;
+ }
+ else if (options.newLine === 1 /* LineFeed */) {
+ return lineFeed;
+ }
+ else if (ts.sys) {
+ return ts.sys.newLine;
+ }
+ return carriageReturnLineFeed;
+ }
+ ts.getNewLineCharacter = getNewLineCharacter;
+})(ts || (ts = {}));
+var ts;
+(function (ts) {
+ function getDefaultLibFileName(options) {
+ return options.target === 2 /* ES6 */ ? "lib.es6.d.ts" : "lib.d.ts";
+ }
+ ts.getDefaultLibFileName = getDefaultLibFileName;
+ function textSpanEnd(span) {
+ return span.start + span.length;
+ }
+ ts.textSpanEnd = textSpanEnd;
+ function textSpanIsEmpty(span) {
+ return span.length === 0;
+ }
+ ts.textSpanIsEmpty = textSpanIsEmpty;
+ function textSpanContainsPosition(span, position) {
+ return position >= span.start && position < textSpanEnd(span);
+ }
+ ts.textSpanContainsPosition = textSpanContainsPosition;
+ // Returns true if 'span' contains 'other'.
+ function textSpanContainsTextSpan(span, other) {
+ return other.start >= span.start && textSpanEnd(other) <= textSpanEnd(span);
+ }
+ ts.textSpanContainsTextSpan = textSpanContainsTextSpan;
+ function textSpanOverlapsWith(span, other) {
+ var overlapStart = Math.max(span.start, other.start);
+ var overlapEnd = Math.min(textSpanEnd(span), textSpanEnd(other));
+ return overlapStart < overlapEnd;
+ }
+ ts.textSpanOverlapsWith = textSpanOverlapsWith;
+ function textSpanOverlap(span1, span2) {
+ var overlapStart = Math.max(span1.start, span2.start);
+ var overlapEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
+ if (overlapStart < overlapEnd) {
+ return createTextSpanFromBounds(overlapStart, overlapEnd);
+ }
+ return undefined;
+ }
+ ts.textSpanOverlap = textSpanOverlap;
+ function textSpanIntersectsWithTextSpan(span, other) {
+ return other.start <= textSpanEnd(span) && textSpanEnd(other) >= span.start;
+ }
+ ts.textSpanIntersectsWithTextSpan = textSpanIntersectsWithTextSpan;
+ function textSpanIntersectsWith(span, start, length) {
+ var end = start + length;
+ return start <= textSpanEnd(span) && end >= span.start;
+ }
+ ts.textSpanIntersectsWith = textSpanIntersectsWith;
+ function decodedTextSpanIntersectsWith(start1, length1, start2, length2) {
+ var end1 = start1 + length1;
+ var end2 = start2 + length2;
+ return start2 <= end1 && end2 >= start1;
+ }
+ ts.decodedTextSpanIntersectsWith = decodedTextSpanIntersectsWith;
+ function textSpanIntersectsWithPosition(span, position) {
+ return position <= textSpanEnd(span) && position >= span.start;
+ }
+ ts.textSpanIntersectsWithPosition = textSpanIntersectsWithPosition;
+ function textSpanIntersection(span1, span2) {
+ var intersectStart = Math.max(span1.start, span2.start);
+ var intersectEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
+ if (intersectStart <= intersectEnd) {
+ return createTextSpanFromBounds(intersectStart, intersectEnd);
+ }
+ return undefined;
+ }
+ ts.textSpanIntersection = textSpanIntersection;
+ function createTextSpan(start, length) {
+ if (start < 0) {
+ throw new Error("start < 0");
+ }
+ if (length < 0) {
+ throw new Error("length < 0");
+ }
+ return { start: start, length: length };
+ }
+ ts.createTextSpan = createTextSpan;
+ function createTextSpanFromBounds(start, end) {
+ return createTextSpan(start, end - start);
+ }
+ ts.createTextSpanFromBounds = createTextSpanFromBounds;
+ function textChangeRangeNewSpan(range) {
+ return createTextSpan(range.span.start, range.newLength);
+ }
+ ts.textChangeRangeNewSpan = textChangeRangeNewSpan;
+ function textChangeRangeIsUnchanged(range) {
+ return textSpanIsEmpty(range.span) && range.newLength === 0;
+ }
+ ts.textChangeRangeIsUnchanged = textChangeRangeIsUnchanged;
+ function createTextChangeRange(span, newLength) {
+ if (newLength < 0) {
+ throw new Error("newLength < 0");
+ }
+ return { span: span, newLength: newLength };
+ }
+ ts.createTextChangeRange = createTextChangeRange;
+ ts.unchangedTextChangeRange = createTextChangeRange(createTextSpan(0, 0), 0);
+ /**
+ * Called to merge all the changes that occurred across several versions of a script snapshot
+ * into a single change. i.e. if a user keeps making successive edits to a script we will
+ * have a text change from V1 to V2, V2 to V3, ..., Vn.
+ *
+ * This function will then merge those changes into a single change range valid between V1 and
+ * Vn.
+ */
+ function collapseTextChangeRangesAcrossMultipleVersions(changes) {
+ if (changes.length === 0) {
+ return ts.unchangedTextChangeRange;
+ }
+ if (changes.length === 1) {
+ return changes[0];
+ }
+ // We change from talking about { { oldStart, oldLength }, newLength } to { oldStart, oldEnd, newEnd }
+ // as it makes things much easier to reason about.
+ var change0 = changes[0];
+ var oldStartN = change0.span.start;
+ var oldEndN = textSpanEnd(change0.span);
+ var newEndN = oldStartN + change0.newLength;
+ for (var i = 1; i < changes.length; i++) {
+ var nextChange = changes[i];
+ // Consider the following case:
+ // i.e. two edits. The first represents the text change range { { 10, 50 }, 30 }. i.e. The span starting
+ // at 10, with length 50 is reduced to length 30. The second represents the text change range { { 30, 30 }, 40 }.
+ // i.e. the span starting at 30 with length 30 is increased to length 40.
+ //
+ // 0 10 20 30 40 50 60 70 80 90 100
+ // -------------------------------------------------------------------------------------------------------
+ // | /
+ // | /----
+ // T1 | /----
+ // | /----
+ // | /----
+ // -------------------------------------------------------------------------------------------------------
+ // | \
+ // | \
+ // T2 | \
+ // | \
+ // | \
+ // -------------------------------------------------------------------------------------------------------
+ //
+ // Merging these turns out to not be too difficult. First, determining the new start of the change is trivial
+ // it's just the min of the old and new starts. i.e.:
+ //
+ // 0 10 20 30 40 50 60 70 80 90 100
+ // ------------------------------------------------------------*------------------------------------------
+ // | /
+ // | /----
+ // T1 | /----
+ // | /----
+ // | /----
+ // ----------------------------------------$-------------------$------------------------------------------
+ // . | \
+ // . | \
+ // T2 . | \
+ // . | \
+ // . | \
+ // ----------------------------------------------------------------------*--------------------------------
+ //
+ // (Note the dots represent the newly inferrred start.
+ // Determining the new and old end is also pretty simple. Basically it boils down to paying attention to the
+ // absolute positions at the asterixes, and the relative change between the dollar signs. Basically, we see
+ // which if the two $'s precedes the other, and we move that one forward until they line up. in this case that
+ // means:
+ //
+ // 0 10 20 30 40 50 60 70 80 90 100
+ // --------------------------------------------------------------------------------*----------------------
+ // | /
+ // | /----
+ // T1 | /----
+ // | /----
+ // | /----
+ // ------------------------------------------------------------$------------------------------------------
+ // . | \
+ // . | \
+ // T2 . | \
+ // . | \
+ // . | \
+ // ----------------------------------------------------------------------*--------------------------------
+ //
+ // In other words (in this case), we're recognizing that the second edit happened after where the first edit
+ // ended with a delta of 20 characters (60 - 40). Thus, if we go back in time to where the first edit started
+ // that's the same as if we started at char 80 instead of 60.
+ //
+ // As it so happens, the same logic applies if the second edit precedes the first edit. In that case rahter
+ // than pusing the first edit forward to match the second, we'll push the second edit forward to match the
+ // first.
+ //
+ // In this case that means we have { oldStart: 10, oldEnd: 80, newEnd: 70 } or, in TextChangeRange
+ // semantics: { { start: 10, length: 70 }, newLength: 60 }
+ //
+ // The math then works out as follows.
+ // If we have { oldStart1, oldEnd1, newEnd1 } and { oldStart2, oldEnd2, newEnd2 } then we can compute the
+ // final result like so:
+ //
+ // {
+ // oldStart3: Min(oldStart1, oldStart2),
+ // oldEnd3 : Max(oldEnd1, oldEnd1 + (oldEnd2 - newEnd1)),
+ // newEnd3 : Max(newEnd2, newEnd2 + (newEnd1 - oldEnd2))
+ // }
+ var oldStart1 = oldStartN;
+ var oldEnd1 = oldEndN;
+ var newEnd1 = newEndN;
+ var oldStart2 = nextChange.span.start;
+ var oldEnd2 = textSpanEnd(nextChange.span);
+ var newEnd2 = oldStart2 + nextChange.newLength;
+ oldStartN = Math.min(oldStart1, oldStart2);
+ oldEndN = Math.max(oldEnd1, oldEnd1 + (oldEnd2 - newEnd1));
+ newEndN = Math.max(newEnd2, newEnd2 + (newEnd1 - oldEnd2));
+ }
+ return createTextChangeRange(createTextSpanFromBounds(oldStartN, oldEndN), /*newLength:*/ newEndN - oldStartN);
+ }
+ ts.collapseTextChangeRangesAcrossMultipleVersions = collapseTextChangeRangesAcrossMultipleVersions;
+ function getTypeParameterOwner(d) {
+ if (d && d.kind === 137 /* TypeParameter */) {
+ for (var current = d; current; current = current.parent) {
+ if (ts.isFunctionLike(current) || ts.isClassLike(current) || current.kind === 215 /* InterfaceDeclaration */) {
+ return current;
+ }
+ }
+ }
+ }
+ ts.getTypeParameterOwner = getTypeParameterOwner;
+ function arrayStructurallyIsEqualTo(array1, array2) {
+ if (!array1 || !array2) {
+ return false;
+ }
+ if (array1.length !== array2.length) {
+ return false;
+ }
+ return ts.arrayIsEqualTo(array1.sort(), array2.sort());
+ }
+ ts.arrayStructurallyIsEqualTo = arrayStructurallyIsEqualTo;
+})(ts || (ts = {}));
+/// <reference path="scanner.ts"/>
+/// <reference path="utilities.ts"/>
+var ts;
+(function (ts) {
+ var nodeConstructors = new Array(272 /* Count */);
+ /* @internal */ ts.parseTime = 0;
+ function getNodeConstructor(kind) {
+ return nodeConstructors[kind] || (nodeConstructors[kind] = ts.objectAllocator.getNodeConstructor(kind));
+ }
+ ts.getNodeConstructor = getNodeConstructor;
+ function createNode(kind) {
+ return new (getNodeConstructor(kind))();
+ }
+ ts.createNode = createNode;
+ function visitNode(cbNode, node) {
+ if (node) {
+ return cbNode(node);
+ }
+ }
+ function visitNodeArray(cbNodes, nodes) {
+ if (nodes) {
+ return cbNodes(nodes);
+ }
+ }
+ function visitEachNode(cbNode, nodes) {
+ if (nodes) {
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var node = nodes[_i];
+ var result = cbNode(node);
+ if (result) {
+ return result;
+ }
+ }
+ }
+ }
+ // Invokes a callback for each child of the given node. The 'cbNode' callback is invoked for all child nodes
+ // stored in properties. If a 'cbNodes' callback is specified, it is invoked for embedded arrays; otherwise,
+ // embedded arrays are flattened and the 'cbNode' callback is invoked for each element. If a callback returns
+ // a truthy value, iteration stops and that value is returned. Otherwise, undefined is returned.
+ function forEachChild(node, cbNode, cbNodeArray) {
+ if (!node) {
+ return;
+ }
+ // The visitXXX functions could be written as local functions that close over the cbNode and cbNodeArray
+ // callback parameters, but that causes a closure allocation for each invocation with noticeable effects
+ // on performance.
+ var visitNodes = cbNodeArray ? visitNodeArray : visitEachNode;
+ var cbNodes = cbNodeArray || cbNode;
+ switch (node.kind) {
+ case 135 /* QualifiedName */:
+ return visitNode(cbNode, node.left) ||
+ visitNode(cbNode, node.right);
+ case 137 /* TypeParameter */:
+ return visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.constraint) ||
+ visitNode(cbNode, node.expression);
+ case 246 /* ShorthandPropertyAssignment */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.questionToken) ||
+ visitNode(cbNode, node.equalsToken) ||
+ visitNode(cbNode, node.objectAssignmentInitializer);
+ case 138 /* Parameter */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 245 /* PropertyAssignment */:
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.propertyName) ||
+ visitNode(cbNode, node.dotDotDotToken) ||
+ visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.questionToken) ||
+ visitNode(cbNode, node.type) ||
+ visitNode(cbNode, node.initializer);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNodes(cbNodes, node.typeParameters) ||
+ visitNodes(cbNodes, node.parameters) ||
+ visitNode(cbNode, node.type);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 173 /* FunctionExpression */:
+ case 213 /* FunctionDeclaration */:
+ case 174 /* ArrowFunction */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.asteriskToken) ||
+ visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.questionToken) ||
+ visitNodes(cbNodes, node.typeParameters) ||
+ visitNodes(cbNodes, node.parameters) ||
+ visitNode(cbNode, node.type) ||
+ visitNode(cbNode, node.equalsGreaterThanToken) ||
+ visitNode(cbNode, node.body);
+ case 151 /* TypeReference */:
+ return visitNode(cbNode, node.typeName) ||
+ visitNodes(cbNodes, node.typeArguments);
+ case 150 /* TypePredicate */:
+ return visitNode(cbNode, node.parameterName) ||
+ visitNode(cbNode, node.type);
+ case 154 /* TypeQuery */:
+ return visitNode(cbNode, node.exprName);
+ case 155 /* TypeLiteral */:
+ return visitNodes(cbNodes, node.members);
+ case 156 /* ArrayType */:
+ return visitNode(cbNode, node.elementType);
+ case 157 /* TupleType */:
+ return visitNodes(cbNodes, node.elementTypes);
+ case 158 /* UnionType */:
+ case 159 /* IntersectionType */:
+ return visitNodes(cbNodes, node.types);
+ case 160 /* ParenthesizedType */:
+ return visitNode(cbNode, node.type);
+ case 161 /* ObjectBindingPattern */:
+ case 162 /* ArrayBindingPattern */:
+ return visitNodes(cbNodes, node.elements);
+ case 164 /* ArrayLiteralExpression */:
+ return visitNodes(cbNodes, node.elements);
+ case 165 /* ObjectLiteralExpression */:
+ return visitNodes(cbNodes, node.properties);
+ case 166 /* PropertyAccessExpression */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.dotToken) ||
+ visitNode(cbNode, node.name);
+ case 167 /* ElementAccessExpression */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.argumentExpression);
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ return visitNode(cbNode, node.expression) ||
+ visitNodes(cbNodes, node.typeArguments) ||
+ visitNodes(cbNodes, node.arguments);
+ case 170 /* TaggedTemplateExpression */:
+ return visitNode(cbNode, node.tag) ||
+ visitNode(cbNode, node.template);
+ case 171 /* TypeAssertionExpression */:
+ return visitNode(cbNode, node.type) ||
+ visitNode(cbNode, node.expression);
+ case 172 /* ParenthesizedExpression */:
+ return visitNode(cbNode, node.expression);
+ case 175 /* DeleteExpression */:
+ return visitNode(cbNode, node.expression);
+ case 176 /* TypeOfExpression */:
+ return visitNode(cbNode, node.expression);
+ case 177 /* VoidExpression */:
+ return visitNode(cbNode, node.expression);
+ case 179 /* PrefixUnaryExpression */:
+ return visitNode(cbNode, node.operand);
+ case 184 /* YieldExpression */:
+ return visitNode(cbNode, node.asteriskToken) ||
+ visitNode(cbNode, node.expression);
+ case 178 /* AwaitExpression */:
+ return visitNode(cbNode, node.expression);
+ case 180 /* PostfixUnaryExpression */:
+ return visitNode(cbNode, node.operand);
+ case 181 /* BinaryExpression */:
+ return visitNode(cbNode, node.left) ||
+ visitNode(cbNode, node.operatorToken) ||
+ visitNode(cbNode, node.right);
+ case 189 /* AsExpression */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.type);
+ case 182 /* ConditionalExpression */:
+ return visitNode(cbNode, node.condition) ||
+ visitNode(cbNode, node.questionToken) ||
+ visitNode(cbNode, node.whenTrue) ||
+ visitNode(cbNode, node.colonToken) ||
+ visitNode(cbNode, node.whenFalse);
+ case 185 /* SpreadElementExpression */:
+ return visitNode(cbNode, node.expression);
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ return visitNodes(cbNodes, node.statements);
+ case 248 /* SourceFile */:
+ return visitNodes(cbNodes, node.statements) ||
+ visitNode(cbNode, node.endOfFileToken);
+ case 193 /* VariableStatement */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.declarationList);
+ case 212 /* VariableDeclarationList */:
+ return visitNodes(cbNodes, node.declarations);
+ case 195 /* ExpressionStatement */:
+ return visitNode(cbNode, node.expression);
+ case 196 /* IfStatement */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.thenStatement) ||
+ visitNode(cbNode, node.elseStatement);
+ case 197 /* DoStatement */:
+ return visitNode(cbNode, node.statement) ||
+ visitNode(cbNode, node.expression);
+ case 198 /* WhileStatement */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.statement);
+ case 199 /* ForStatement */:
+ return visitNode(cbNode, node.initializer) ||
+ visitNode(cbNode, node.condition) ||
+ visitNode(cbNode, node.incrementor) ||
+ visitNode(cbNode, node.statement);
+ case 200 /* ForInStatement */:
+ return visitNode(cbNode, node.initializer) ||
+ visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.statement);
+ case 201 /* ForOfStatement */:
+ return visitNode(cbNode, node.initializer) ||
+ visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.statement);
+ case 202 /* ContinueStatement */:
+ case 203 /* BreakStatement */:
+ return visitNode(cbNode, node.label);
+ case 204 /* ReturnStatement */:
+ return visitNode(cbNode, node.expression);
+ case 205 /* WithStatement */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.statement);
+ case 206 /* SwitchStatement */:
+ return visitNode(cbNode, node.expression) ||
+ visitNode(cbNode, node.caseBlock);
+ case 220 /* CaseBlock */:
+ return visitNodes(cbNodes, node.clauses);
+ case 241 /* CaseClause */:
+ return visitNode(cbNode, node.expression) ||
+ visitNodes(cbNodes, node.statements);
+ case 242 /* DefaultClause */:
+ return visitNodes(cbNodes, node.statements);
+ case 207 /* LabeledStatement */:
+ return visitNode(cbNode, node.label) ||
+ visitNode(cbNode, node.statement);
+ case 208 /* ThrowStatement */:
+ return visitNode(cbNode, node.expression);
+ case 209 /* TryStatement */:
+ return visitNode(cbNode, node.tryBlock) ||
+ visitNode(cbNode, node.catchClause) ||
+ visitNode(cbNode, node.finallyBlock);
+ case 244 /* CatchClause */:
+ return visitNode(cbNode, node.variableDeclaration) ||
+ visitNode(cbNode, node.block);
+ case 139 /* Decorator */:
+ return visitNode(cbNode, node.expression);
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNodes(cbNodes, node.typeParameters) ||
+ visitNodes(cbNodes, node.heritageClauses) ||
+ visitNodes(cbNodes, node.members);
+ case 215 /* InterfaceDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNodes(cbNodes, node.typeParameters) ||
+ visitNodes(cbNodes, node.heritageClauses) ||
+ visitNodes(cbNodes, node.members);
+ case 216 /* TypeAliasDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNodes(cbNodes, node.typeParameters) ||
+ visitNode(cbNode, node.type);
+ case 217 /* EnumDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNodes(cbNodes, node.members);
+ case 247 /* EnumMember */:
+ return visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.initializer);
+ case 218 /* ModuleDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.body);
+ case 221 /* ImportEqualsDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.moduleReference);
+ case 222 /* ImportDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.importClause) ||
+ visitNode(cbNode, node.moduleSpecifier);
+ case 223 /* ImportClause */:
+ return visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.namedBindings);
+ case 224 /* NamespaceImport */:
+ return visitNode(cbNode, node.name);
+ case 225 /* NamedImports */:
+ case 229 /* NamedExports */:
+ return visitNodes(cbNodes, node.elements);
+ case 228 /* ExportDeclaration */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.exportClause) ||
+ visitNode(cbNode, node.moduleSpecifier);
+ case 226 /* ImportSpecifier */:
+ case 230 /* ExportSpecifier */:
+ return visitNode(cbNode, node.propertyName) ||
+ visitNode(cbNode, node.name);
+ case 227 /* ExportAssignment */:
+ return visitNodes(cbNodes, node.decorators) ||
+ visitNodes(cbNodes, node.modifiers) ||
+ visitNode(cbNode, node.expression);
+ case 183 /* TemplateExpression */:
+ return visitNode(cbNode, node.head) || visitNodes(cbNodes, node.templateSpans);
+ case 190 /* TemplateSpan */:
+ return visitNode(cbNode, node.expression) || visitNode(cbNode, node.literal);
+ case 136 /* ComputedPropertyName */:
+ return visitNode(cbNode, node.expression);
+ case 243 /* HeritageClause */:
+ return visitNodes(cbNodes, node.types);
+ case 188 /* ExpressionWithTypeArguments */:
+ return visitNode(cbNode, node.expression) ||
+ visitNodes(cbNodes, node.typeArguments);
+ case 232 /* ExternalModuleReference */:
+ return visitNode(cbNode, node.expression);
+ case 231 /* MissingDeclaration */:
+ return visitNodes(cbNodes, node.decorators);
+ case 233 /* JsxElement */:
+ return visitNode(cbNode, node.openingElement) ||
+ visitNodes(cbNodes, node.children) ||
+ visitNode(cbNode, node.closingElement);
+ case 234 /* JsxSelfClosingElement */:
+ case 235 /* JsxOpeningElement */:
+ return visitNode(cbNode, node.tagName) ||
+ visitNodes(cbNodes, node.attributes);
+ case 238 /* JsxAttribute */:
+ return visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.initializer);
+ case 239 /* JsxSpreadAttribute */:
+ return visitNode(cbNode, node.expression);
+ case 240 /* JsxExpression */:
+ return visitNode(cbNode, node.expression);
+ case 237 /* JsxClosingElement */:
+ return visitNode(cbNode, node.tagName);
+ case 249 /* JSDocTypeExpression */:
+ return visitNode(cbNode, node.type);
+ case 253 /* JSDocUnionType */:
+ return visitNodes(cbNodes, node.types);
+ case 254 /* JSDocTupleType */:
+ return visitNodes(cbNodes, node.types);
+ case 252 /* JSDocArrayType */:
+ return visitNode(cbNode, node.elementType);
+ case 256 /* JSDocNonNullableType */:
+ return visitNode(cbNode, node.type);
+ case 255 /* JSDocNullableType */:
+ return visitNode(cbNode, node.type);
+ case 257 /* JSDocRecordType */:
+ return visitNodes(cbNodes, node.members);
+ case 259 /* JSDocTypeReference */:
+ return visitNode(cbNode, node.name) ||
+ visitNodes(cbNodes, node.typeArguments);
+ case 260 /* JSDocOptionalType */:
+ return visitNode(cbNode, node.type);
+ case 261 /* JSDocFunctionType */:
+ return visitNodes(cbNodes, node.parameters) ||
+ visitNode(cbNode, node.type);
+ case 262 /* JSDocVariadicType */:
+ return visitNode(cbNode, node.type);
+ case 263 /* JSDocConstructorType */:
+ return visitNode(cbNode, node.type);
+ case 264 /* JSDocThisType */:
+ return visitNode(cbNode, node.type);
+ case 258 /* JSDocRecordMember */:
+ return visitNode(cbNode, node.name) ||
+ visitNode(cbNode, node.type);
+ case 265 /* JSDocComment */:
+ return visitNodes(cbNodes, node.tags);
+ case 267 /* JSDocParameterTag */:
+ return visitNode(cbNode, node.preParameterName) ||
+ visitNode(cbNode, node.typeExpression) ||
+ visitNode(cbNode, node.postParameterName);
+ case 268 /* JSDocReturnTag */:
+ return visitNode(cbNode, node.typeExpression);
+ case 269 /* JSDocTypeTag */:
+ return visitNode(cbNode, node.typeExpression);
+ case 270 /* JSDocTemplateTag */:
+ return visitNodes(cbNodes, node.typeParameters);
+ }
+ }
+ ts.forEachChild = forEachChild;
+ function createSourceFile(fileName, sourceText, languageVersion, setParentNodes) {
+ if (setParentNodes === void 0) { setParentNodes = false; }
+ var start = new Date().getTime();
+ var result = Parser.parseSourceFile(fileName, sourceText, languageVersion, /*syntaxCursor*/ undefined, setParentNodes);
+ ts.parseTime += new Date().getTime() - start;
+ return result;
+ }
+ ts.createSourceFile = createSourceFile;
+ // Produces a new SourceFile for the 'newText' provided. The 'textChangeRange' parameter
+ // indicates what changed between the 'text' that this SourceFile has and the 'newText'.
+ // The SourceFile will be created with the compiler attempting to reuse as many nodes from
+ // this file as possible.
+ //
+ // Note: this function mutates nodes from this SourceFile. That means any existing nodes
+ // from this SourceFile that are being held onto may change as a result (including
+ // becoming detached from any SourceFile). It is recommended that this SourceFile not
+ // be used once 'update' is called on it.
+ function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
+ return IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
+ }
+ ts.updateSourceFile = updateSourceFile;
+ /* @internal */
+ function parseIsolatedJSDocComment(content, start, length) {
+ return Parser.JSDocParser.parseIsolatedJSDocComment(content, start, length);
+ }
+ ts.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
+ /* @internal */
+ // Exposed only for testing.
+ function parseJSDocTypeExpressionForTests(content, start, length) {
+ return Parser.JSDocParser.parseJSDocTypeExpressionForTests(content, start, length);
+ }
+ ts.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
+ // Implement the parser as a singleton module. We do this for perf reasons because creating
+ // parser instances can actually be expensive enough to impact us on projects with many source
+ // files.
+ var Parser;
+ (function (Parser) {
+ // Share a single scanner across all calls to parse a source file. This helps speed things
+ // up by avoiding the cost of creating/compiling scanners over and over again.
+ var scanner = ts.createScanner(2 /* Latest */, /*skipTrivia*/ true);
+ var disallowInAndDecoratorContext = 1 /* DisallowIn */ | 4 /* Decorator */;
+ var sourceFile;
+ var parseDiagnostics;
+ var syntaxCursor;
+ var token;
+ var sourceText;
+ var nodeCount;
+ var identifiers;
+ var identifierCount;
+ var parsingContext;
+ // Flags that dictate what parsing context we're in. For example:
+ // Whether or not we are in strict parsing mode. All that changes in strict parsing mode is
+ // that some tokens that would be considered identifiers may be considered keywords.
+ //
+ // When adding more parser context flags, consider which is the more common case that the
+ // flag will be in. This should be the 'false' state for that flag. The reason for this is
+ // that we don't store data in our nodes unless the value is in the *non-default* state. So,
+ // for example, more often than code 'allows-in' (or doesn't 'disallow-in'). We opt for
+ // 'disallow-in' set to 'false'. Otherwise, if we had 'allowsIn' set to 'true', then almost
+ // all nodes would need extra state on them to store this info.
+ //
+ // Note: 'allowIn' and 'allowYield' track 1:1 with the [in] and [yield] concepts in the ES6
+ // grammar specification.
+ //
+ // An important thing about these context concepts. By default they are effectively inherited
+ // while parsing through every grammar production. i.e. if you don't change them, then when
+ // you parse a sub-production, it will have the same context values as the parent production.
+ // This is great most of the time. After all, consider all the 'expression' grammar productions
+ // and how nearly all of them pass along the 'in' and 'yield' context values:
+ //
+ // EqualityExpression[In, Yield] :
+ // RelationalExpression[?In, ?Yield]
+ // EqualityExpression[?In, ?Yield] == RelationalExpression[?In, ?Yield]
+ // EqualityExpression[?In, ?Yield] != RelationalExpression[?In, ?Yield]
+ // EqualityExpression[?In, ?Yield] === RelationalExpression[?In, ?Yield]
+ // EqualityExpression[?In, ?Yield] !== RelationalExpression[?In, ?Yield]
+ //
+ // Where you have to be careful is then understanding what the points are in the grammar
+ // where the values are *not* passed along. For example:
+ //
+ // SingleNameBinding[Yield,GeneratorParameter]
+ // [+GeneratorParameter]BindingIdentifier[Yield] Initializer[In]opt
+ // [~GeneratorParameter]BindingIdentifier[?Yield]Initializer[In, ?Yield]opt
+ //
+ // Here this is saying that if the GeneratorParameter context flag is set, that we should
+ // explicitly set the 'yield' context flag to false before calling into the BindingIdentifier
+ // and we should explicitly unset the 'yield' context flag before calling into the Initializer.
+ // production. Conversely, if the GeneratorParameter context flag is not set, then we
+ // should leave the 'yield' context flag alone.
+ //
+ // Getting this all correct is tricky and requires careful reading of the grammar to
+ // understand when these values should be changed versus when they should be inherited.
+ //
+ // Note: it should not be necessary to save/restore these flags during speculative/lookahead
+ // parsing. These context flags are naturally stored and restored through normal recursive
+ // descent parsing and unwinding.
+ var contextFlags;
+ // Whether or not we've had a parse error since creating the last AST node. If we have
+ // encountered an error, it will be stored on the next AST node we create. Parse errors
+ // can be broken down into three categories:
+ //
+ // 1) An error that occurred during scanning. For example, an unterminated literal, or a
+ // character that was completely not understood.
+ //
+ // 2) A token was expected, but was not present. This type of error is commonly produced
+ // by the 'parseExpected' function.
+ //
+ // 3) A token was present that no parsing function was able to consume. This type of error
+ // only occurs in the 'abortParsingListOrMoveToNextToken' function when the parser
+ // decides to skip the token.
+ //
+ // In all of these cases, we want to mark the next node as having had an error before it.
+ // With this mark, we can know in incremental settings if this node can be reused, or if
+ // we have to reparse it. If we don't keep this information around, we may just reuse the
+ // node. in that event we would then not produce the same errors as we did before, causing
+ // significant confusion problems.
+ //
+ // Note: it is necessary that this value be saved/restored during speculative/lookahead
+ // parsing. During lookahead parsing, we will often create a node. That node will have
+ // this value attached, and then this value will be set back to 'false'. If we decide to
+ // rewind, we must get back to the same value we had prior to the lookahead.
+ //
+ // Note: any errors at the end of the file that do not precede a regular node, should get
+ // attached to the EOF token.
+ var parseErrorBeforeNextFinishedNode = false;
+ function parseSourceFile(fileName, _sourceText, languageVersion, _syntaxCursor, setParentNodes) {
+ initializeState(fileName, _sourceText, languageVersion, _syntaxCursor);
+ var result = parseSourceFileWorker(fileName, languageVersion, setParentNodes);
+ clearState();
+ return result;
+ }
+ Parser.parseSourceFile = parseSourceFile;
+ function initializeState(fileName, _sourceText, languageVersion, _syntaxCursor) {
+ sourceText = _sourceText;
+ syntaxCursor = _syntaxCursor;
+ parseDiagnostics = [];
+ parsingContext = 0;
+ identifiers = {};
+ identifierCount = 0;
+ nodeCount = 0;
+ contextFlags = ts.isJavaScript(fileName) ? 32 /* JavaScriptFile */ : 0 /* None */;
+ parseErrorBeforeNextFinishedNode = false;
+ // Initialize and prime the scanner before parsing the source elements.
+ scanner.setText(sourceText);
+ scanner.setOnError(scanError);
+ scanner.setScriptTarget(languageVersion);
+ scanner.setLanguageVariant(ts.isTsx(fileName) ? 1 /* JSX */ : 0 /* Standard */);
+ }
+ function clearState() {
+ // Clear out the text the scanner is pointing at, so it doesn't keep anything alive unnecessarily.
+ scanner.setText("");
+ scanner.setOnError(undefined);
+ // Clear any data. We don't want to accidently hold onto it for too long.
+ parseDiagnostics = undefined;
+ sourceFile = undefined;
+ identifiers = undefined;
+ syntaxCursor = undefined;
+ sourceText = undefined;
+ }
+ function parseSourceFileWorker(fileName, languageVersion, setParentNodes) {
+ sourceFile = createSourceFile(fileName, languageVersion);
+ // Prime the scanner.
+ token = nextToken();
+ processReferenceComments(sourceFile);
+ sourceFile.statements = parseList(0 /* SourceElements */, parseStatement);
+ ts.Debug.assert(token === 1 /* EndOfFileToken */);
+ sourceFile.endOfFileToken = parseTokenNode();
+ setExternalModuleIndicator(sourceFile);
+ sourceFile.nodeCount = nodeCount;
+ sourceFile.identifierCount = identifierCount;
+ sourceFile.identifiers = identifiers;
+ sourceFile.parseDiagnostics = parseDiagnostics;
+ if (setParentNodes) {
+ fixupParentReferences(sourceFile);
+ }
+ // If this is a javascript file, proactively see if we can get JSDoc comments for
+ // relevant nodes in the file. We'll use these to provide typing informaion if they're
+ // available.
+ if (ts.isJavaScript(fileName)) {
+ addJSDocComments();
+ }
+ return sourceFile;
+ }
+ function addJSDocComments() {
+ forEachChild(sourceFile, visit);
+ return;
+ function visit(node) {
+ // Add additional cases as necessary depending on how we see JSDoc comments used
+ // in the wild.
+ switch (node.kind) {
+ case 193 /* VariableStatement */:
+ case 213 /* FunctionDeclaration */:
+ case 138 /* Parameter */:
+ addJSDocComment(node);
+ }
+ forEachChild(node, visit);
+ }
+ }
+ function addJSDocComment(node) {
+ var comments = ts.getLeadingCommentRangesOfNode(node, sourceFile);
+ if (comments) {
+ for (var _i = 0; _i < comments.length; _i++) {
+ var comment = comments[_i];
+ var jsDocComment = JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos);
+ if (jsDocComment) {
+ node.jsDocComment = jsDocComment;
+ }
+ }
+ }
+ }
+ function fixupParentReferences(sourceFile) {
+ // normally parent references are set during binding. However, for clients that only need
+ // a syntax tree, and no semantic features, then the binding process is an unnecessary
+ // overhead. This functions allows us to set all the parents, without all the expense of
+ // binding.
+ var parent = sourceFile;
+ forEachChild(sourceFile, visitNode);
+ return;
+ function visitNode(n) {
+ // walk down setting parents that differ from the parent we think it should be. This
+ // allows us to quickly bail out of setting parents for subtrees during incremental
+ // parsing
+ if (n.parent !== parent) {
+ n.parent = parent;
+ var saveParent = parent;
+ parent = n;
+ forEachChild(n, visitNode);
+ parent = saveParent;
+ }
+ }
+ }
+ Parser.fixupParentReferences = fixupParentReferences;
+ function createSourceFile(fileName, languageVersion) {
+ var sourceFile = createNode(248 /* SourceFile */, /*pos*/ 0);
+ sourceFile.pos = 0;
+ sourceFile.end = sourceText.length;
+ sourceFile.text = sourceText;
+ sourceFile.bindDiagnostics = [];
+ sourceFile.languageVersion = languageVersion;
+ sourceFile.fileName = ts.normalizePath(fileName);
+ sourceFile.flags = ts.fileExtensionIs(sourceFile.fileName, ".d.ts") ? 8192 /* DeclarationFile */ : 0;
+ sourceFile.languageVariant = ts.isTsx(sourceFile.fileName) ? 1 /* JSX */ : 0 /* Standard */;
+ return sourceFile;
+ }
+ function setContextFlag(val, flag) {
+ if (val) {
+ contextFlags |= flag;
+ }
+ else {
+ contextFlags &= ~flag;
+ }
+ }
+ function setDisallowInContext(val) {
+ setContextFlag(val, 1 /* DisallowIn */);
+ }
+ function setYieldContext(val) {
+ setContextFlag(val, 2 /* Yield */);
+ }
+ function setDecoratorContext(val) {
+ setContextFlag(val, 4 /* Decorator */);
+ }
+ function setAwaitContext(val) {
+ setContextFlag(val, 8 /* Await */);
+ }
+ function doOutsideOfContext(context, func) {
+ // contextFlagsToClear will contain only the context flags that are
+ // currently set that we need to temporarily clear
+ // We don't just blindly reset to the previous flags to ensure
+ // that we do not mutate cached flags for the incremental
+ // parser (ThisNodeHasError, ThisNodeOrAnySubNodesHasError, and
+ // HasAggregatedChildData).
+ var contextFlagsToClear = context & contextFlags;
+ if (contextFlagsToClear) {
+ // clear the requested context flags
+ setContextFlag(false, contextFlagsToClear);
+ var result = func();
+ // restore the context flags we just cleared
+ setContextFlag(true, contextFlagsToClear);
+ return result;
+ }
+ // no need to do anything special as we are not in any of the requested contexts
+ return func();
+ }
+ function doInsideOfContext(context, func) {
+ // contextFlagsToSet will contain only the context flags that
+ // are not currently set that we need to temporarily enable.
+ // We don't just blindly reset to the previous flags to ensure
+ // that we do not mutate cached flags for the incremental
+ // parser (ThisNodeHasError, ThisNodeOrAnySubNodesHasError, and
+ // HasAggregatedChildData).
+ var contextFlagsToSet = context & ~contextFlags;
+ if (contextFlagsToSet) {
+ // set the requested context flags
+ setContextFlag(true, contextFlagsToSet);
+ var result = func();
+ // reset the context flags we just set
+ setContextFlag(false, contextFlagsToSet);
+ return result;
+ }
+ // no need to do anything special as we are already in all of the requested contexts
+ return func();
+ }
+ function allowInAnd(func) {
+ return doOutsideOfContext(1 /* DisallowIn */, func);
+ }
+ function disallowInAnd(func) {
+ return doInsideOfContext(1 /* DisallowIn */, func);
+ }
+ function doInYieldContext(func) {
+ return doInsideOfContext(2 /* Yield */, func);
+ }
+ function doOutsideOfYieldContext(func) {
+ return doOutsideOfContext(2 /* Yield */, func);
+ }
+ function doInDecoratorContext(func) {
+ return doInsideOfContext(4 /* Decorator */, func);
+ }
+ function doInAwaitContext(func) {
+ return doInsideOfContext(8 /* Await */, func);
+ }
+ function doOutsideOfAwaitContext(func) {
+ return doOutsideOfContext(8 /* Await */, func);
+ }
+ function doInYieldAndAwaitContext(func) {
+ return doInsideOfContext(2 /* Yield */ | 8 /* Await */, func);
+ }
+ function doOutsideOfYieldAndAwaitContext(func) {
+ return doOutsideOfContext(2 /* Yield */ | 8 /* Await */, func);
+ }
+ function inContext(flags) {
+ return (contextFlags & flags) !== 0;
+ }
+ function inYieldContext() {
+ return inContext(2 /* Yield */);
+ }
+ function inDisallowInContext() {
+ return inContext(1 /* DisallowIn */);
+ }
+ function inDecoratorContext() {
+ return inContext(4 /* Decorator */);
+ }
+ function inAwaitContext() {
+ return inContext(8 /* Await */);
+ }
+ function parseErrorAtCurrentToken(message, arg0) {
+ var start = scanner.getTokenPos();
+ var length = scanner.getTextPos() - start;
+ parseErrorAtPosition(start, length, message, arg0);
+ }
+ function parseErrorAtPosition(start, length, message, arg0) {
+ // Don't report another error if it would just be at the same position as the last error.
+ var lastError = ts.lastOrUndefined(parseDiagnostics);
+ if (!lastError || start !== lastError.start) {
+ parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, start, length, message, arg0));
+ }
+ // Mark that we've encountered an error. We'll set an appropriate bit on the next
+ // node we finish so that it can't be reused incrementally.
+ parseErrorBeforeNextFinishedNode = true;
+ }
+ function scanError(message, length) {
+ var pos = scanner.getTextPos();
+ parseErrorAtPosition(pos, length || 0, message);
+ }
+ function getNodePos() {
+ return scanner.getStartPos();
+ }
+ function getNodeEnd() {
+ return scanner.getStartPos();
+ }
+ function nextToken() {
+ return token = scanner.scan();
+ }
+ function getTokenPos(pos) {
+ return ts.skipTrivia(sourceText, pos);
+ }
+ function reScanGreaterToken() {
+ return token = scanner.reScanGreaterToken();
+ }
+ function reScanSlashToken() {
+ return token = scanner.reScanSlashToken();
+ }
+ function reScanTemplateToken() {
+ return token = scanner.reScanTemplateToken();
+ }
+ function scanJsxIdentifier() {
+ return token = scanner.scanJsxIdentifier();
+ }
+ function scanJsxText() {
+ return token = scanner.scanJsxToken();
+ }
+ function speculationHelper(callback, isLookAhead) {
+ // Keep track of the state we'll need to rollback to if lookahead fails (or if the
+ // caller asked us to always reset our state).
+ var saveToken = token;
+ var saveParseDiagnosticsLength = parseDiagnostics.length;
+ var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
+ // Note: it is not actually necessary to save/restore the context flags here. That's
+ // because the saving/restoring of these flags happens naturally through the recursive
+ // descent nature of our parser. However, we still store this here just so we can
+ // assert that that invariant holds.
+ var saveContextFlags = contextFlags;
+ // If we're only looking ahead, then tell the scanner to only lookahead as well.
+ // Otherwise, if we're actually speculatively parsing, then tell the scanner to do the
+ // same.
+ var result = isLookAhead
+ ? scanner.lookAhead(callback)
+ : scanner.tryScan(callback);
+ ts.Debug.assert(saveContextFlags === contextFlags);
+ // If our callback returned something 'falsy' or we're just looking ahead,
+ // then unconditionally restore us to where we were.
+ if (!result || isLookAhead) {
+ token = saveToken;
+ parseDiagnostics.length = saveParseDiagnosticsLength;
+ parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
+ }
+ return result;
+ }
+ // Invokes the provided callback then unconditionally restores the parser to the state it
+ // was in immediately prior to invoking the callback. The result of invoking the callback
+ // is returned from this function.
+ function lookAhead(callback) {
+ return speculationHelper(callback, /*isLookAhead*/ true);
+ }
+ // Invokes the provided callback. If the callback returns something falsy, then it restores
+ // the parser to the state it was in immediately prior to invoking the callback. If the
+ // callback returns something truthy, then the parser state is not rolled back. The result
+ // of invoking the callback is returned from this function.
+ function tryParse(callback) {
+ return speculationHelper(callback, /*isLookAhead*/ false);
+ }
+ // Ignore strict mode flag because we will report an error in type checker instead.
+ function isIdentifier() {
+ if (token === 69 /* Identifier */) {
+ return true;
+ }
+ // If we have a 'yield' keyword, and we're in the [yield] context, then 'yield' is
+ // considered a keyword and is not an identifier.
+ if (token === 114 /* YieldKeyword */ && inYieldContext()) {
+ return false;
+ }
+ // If we have a 'await' keyword, and we're in the [Await] context, then 'await' is
+ // considered a keyword and is not an identifier.
+ if (token === 119 /* AwaitKeyword */ && inAwaitContext()) {
+ return false;
+ }
+ return token > 105 /* LastReservedWord */;
+ }
+ function parseExpected(kind, diagnosticMessage, shouldAdvance) {
+ if (shouldAdvance === void 0) { shouldAdvance = true; }
+ if (token === kind) {
+ if (shouldAdvance) {
+ nextToken();
+ }
+ return true;
+ }
+ // Report specific message if provided with one. Otherwise, report generic fallback message.
+ if (diagnosticMessage) {
+ parseErrorAtCurrentToken(diagnosticMessage);
+ }
+ else {
+ parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(kind));
+ }
+ return false;
+ }
+ function parseOptional(t) {
+ if (token === t) {
+ nextToken();
+ return true;
+ }
+ return false;
+ }
+ function parseOptionalToken(t) {
+ if (token === t) {
+ return parseTokenNode();
+ }
+ return undefined;
+ }
+ function parseExpectedToken(t, reportAtCurrentPosition, diagnosticMessage, arg0) {
+ return parseOptionalToken(t) ||
+ createMissingNode(t, reportAtCurrentPosition, diagnosticMessage, arg0);
+ }
+ function parseTokenNode() {
+ var node = createNode(token);
+ nextToken();
+ return finishNode(node);
+ }
+ function canParseSemicolon() {
+ // If there's a real semicolon, then we can always parse it out.
+ if (token === 23 /* SemicolonToken */) {
+ return true;
+ }
+ // We can parse out an optional semicolon in ASI cases in the following cases.
+ return token === 16 /* CloseBraceToken */ || token === 1 /* EndOfFileToken */ || scanner.hasPrecedingLineBreak();
+ }
+ function parseSemicolon() {
+ if (canParseSemicolon()) {
+ if (token === 23 /* SemicolonToken */) {
+ // consume the semicolon if it was explicitly provided.
+ nextToken();
+ }
+ return true;
+ }
+ else {
+ return parseExpected(23 /* SemicolonToken */);
+ }
+ }
+ function createNode(kind, pos) {
+ nodeCount++;
+ var node = new (nodeConstructors[kind] || (nodeConstructors[kind] = ts.objectAllocator.getNodeConstructor(kind)))();
+ if (!(pos >= 0)) {
+ pos = scanner.getStartPos();
+ }
+ node.pos = pos;
+ node.end = pos;
+ return node;
+ }
+ function finishNode(node, end) {
+ node.end = end === undefined ? scanner.getStartPos() : end;
+ if (contextFlags) {
+ node.parserContextFlags = contextFlags;
+ }
+ // Keep track on the node if we encountered an error while parsing it. If we did, then
+ // we cannot reuse the node incrementally. Once we've marked this node, clear out the
+ // flag so that we don't mark any subsequent nodes.
+ if (parseErrorBeforeNextFinishedNode) {
+ parseErrorBeforeNextFinishedNode = false;
+ node.parserContextFlags |= 16 /* ThisNodeHasError */;
+ }
+ return node;
+ }
+ function createMissingNode(kind, reportAtCurrentPosition, diagnosticMessage, arg0) {
+ if (reportAtCurrentPosition) {
+ parseErrorAtPosition(scanner.getStartPos(), 0, diagnosticMessage, arg0);
+ }
+ else {
+ parseErrorAtCurrentToken(diagnosticMessage, arg0);
+ }
+ var result = createNode(kind, scanner.getStartPos());
+ result.text = "";
+ return finishNode(result);
+ }
+ function internIdentifier(text) {
+ text = ts.escapeIdentifier(text);
+ return ts.hasProperty(identifiers, text) ? identifiers[text] : (identifiers[text] = text);
+ }
+ // An identifier that starts with two underscores has an extra underscore character prepended to it to avoid issues
+ // with magic property names like '__proto__'. The 'identifiers' object is used to share a single string instance for
+ // each identifier in order to reduce memory consumption.
+ function createIdentifier(isIdentifier, diagnosticMessage) {
+ identifierCount++;
+ if (isIdentifier) {
+ var node = createNode(69 /* Identifier */);
+ // Store original token kind if it is not just an Identifier so we can report appropriate error later in type checker
+ if (token !== 69 /* Identifier */) {
+ node.originalKeywordKind = token;
+ }
+ node.text = internIdentifier(scanner.getTokenValue());
+ nextToken();
+ return finishNode(node);
+ }
+ return createMissingNode(69 /* Identifier */, /*reportAtCurrentPosition*/ false, diagnosticMessage || ts.Diagnostics.Identifier_expected);
+ }
+ function parseIdentifier(diagnosticMessage) {
+ return createIdentifier(isIdentifier(), diagnosticMessage);
+ }
+ function parseIdentifierName() {
+ return createIdentifier(ts.tokenIsIdentifierOrKeyword(token));
+ }
+ function isLiteralPropertyName() {
+ return ts.tokenIsIdentifierOrKeyword(token) ||
+ token === 9 /* StringLiteral */ ||
+ token === 8 /* NumericLiteral */;
+ }
+ function parsePropertyNameWorker(allowComputedPropertyNames) {
+ if (token === 9 /* StringLiteral */ || token === 8 /* NumericLiteral */) {
+ return parseLiteralNode(/*internName*/ true);
+ }
+ if (allowComputedPropertyNames && token === 19 /* OpenBracketToken */) {
+ return parseComputedPropertyName();
+ }
+ return parseIdentifierName();
+ }
+ function parsePropertyName() {
+ return parsePropertyNameWorker(/*allowComputedPropertyNames:*/ true);
+ }
+ function parseSimplePropertyName() {
+ return parsePropertyNameWorker(/*allowComputedPropertyNames:*/ false);
+ }
+ function isSimplePropertyName() {
+ return token === 9 /* StringLiteral */ || token === 8 /* NumericLiteral */ || ts.tokenIsIdentifierOrKeyword(token);
+ }
+ function parseComputedPropertyName() {
+ // PropertyName [Yield]:
+ // LiteralPropertyName
+ // ComputedPropertyName[?Yield]
+ var node = createNode(136 /* ComputedPropertyName */);
+ parseExpected(19 /* OpenBracketToken */);
+ // We parse any expression (including a comma expression). But the grammar
+ // says that only an assignment expression is allowed, so the grammar checker
+ // will error if it sees a comma expression.
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(20 /* CloseBracketToken */);
+ return finishNode(node);
+ }
+ function parseContextualModifier(t) {
+ return token === t && tryParse(nextTokenCanFollowModifier);
+ }
+ function nextTokenCanFollowModifier() {
+ if (token === 74 /* ConstKeyword */) {
+ // 'const' is only a modifier if followed by 'enum'.
+ return nextToken() === 81 /* EnumKeyword */;
+ }
+ if (token === 82 /* ExportKeyword */) {
+ nextToken();
+ if (token === 77 /* DefaultKeyword */) {
+ return lookAhead(nextTokenIsClassOrFunction);
+ }
+ return token !== 37 /* AsteriskToken */ && token !== 15 /* OpenBraceToken */ && canFollowModifier();
+ }
+ if (token === 77 /* DefaultKeyword */) {
+ return nextTokenIsClassOrFunction();
+ }
+ if (token === 113 /* StaticKeyword */) {
+ nextToken();
+ return canFollowModifier();
+ }
+ nextToken();
+ if (scanner.hasPrecedingLineBreak()) {
+ return false;
+ }
+ return canFollowModifier();
+ }
+ function parseAnyContextualModifier() {
+ return ts.isModifier(token) && tryParse(nextTokenCanFollowModifier);
+ }
+ function canFollowModifier() {
+ return token === 19 /* OpenBracketToken */
+ || token === 15 /* OpenBraceToken */
+ || token === 37 /* AsteriskToken */
+ || isLiteralPropertyName();
+ }
+ function nextTokenIsClassOrFunction() {
+ nextToken();
+ return token === 73 /* ClassKeyword */ || token === 87 /* FunctionKeyword */;
+ }
+ // True if positioned at the start of a list element
+ function isListElement(parsingContext, inErrorRecovery) {
+ var node = currentNode(parsingContext);
+ if (node) {
+ return true;
+ }
+ switch (parsingContext) {
+ case 0 /* SourceElements */:
+ case 1 /* BlockStatements */:
+ case 3 /* SwitchClauseStatements */:
+ // If we're in error recovery, then we don't want to treat ';' as an empty statement.
+ // The problem is that ';' can show up in far too many contexts, and if we see one
+ // and assume it's a statement, then we may bail out inappropriately from whatever
+ // we're parsing. For example, if we have a semicolon in the middle of a class, then
+ // we really don't want to assume the class is over and we're on a statement in the
+ // outer module. We just want to consume and move on.
+ return !(token === 23 /* SemicolonToken */ && inErrorRecovery) && isStartOfStatement();
+ case 2 /* SwitchClauses */:
+ return token === 71 /* CaseKeyword */ || token === 77 /* DefaultKeyword */;
+ case 4 /* TypeMembers */:
+ return isStartOfTypeMember();
+ case 5 /* ClassMembers */:
+ // We allow semicolons as class elements (as specified by ES6) as long as we're
+ // not in error recovery. If we're in error recovery, we don't want an errant
+ // semicolon to be treated as a class member (since they're almost always used
+ // for statements.
+ return lookAhead(isClassMemberStart) || (token === 23 /* SemicolonToken */ && !inErrorRecovery);
+ case 6 /* EnumMembers */:
+ // Include open bracket computed properties. This technically also lets in indexers,
+ // which would be a candidate for improved error reporting.
+ return token === 19 /* OpenBracketToken */ || isLiteralPropertyName();
+ case 12 /* ObjectLiteralMembers */:
+ return token === 19 /* OpenBracketToken */ || token === 37 /* AsteriskToken */ || isLiteralPropertyName();
+ case 9 /* ObjectBindingElements */:
+ return isLiteralPropertyName();
+ case 7 /* HeritageClauseElement */:
+ // If we see { } then only consume it as an expression if it is followed by , or {
+ // That way we won't consume the body of a class in its heritage clause.
+ if (token === 15 /* OpenBraceToken */) {
+ return lookAhead(isValidHeritageClauseObjectLiteral);
+ }
+ if (!inErrorRecovery) {
+ return isStartOfLeftHandSideExpression() && !isHeritageClauseExtendsOrImplementsKeyword();
+ }
+ else {
+ // If we're in error recovery we tighten up what we're willing to match.
+ // That way we don't treat something like "this" as a valid heritage clause
+ // element during recovery.
+ return isIdentifier() && !isHeritageClauseExtendsOrImplementsKeyword();
+ }
+ case 8 /* VariableDeclarations */:
+ return isIdentifierOrPattern();
+ case 10 /* ArrayBindingElements */:
+ return token === 24 /* CommaToken */ || token === 22 /* DotDotDotToken */ || isIdentifierOrPattern();
+ case 17 /* TypeParameters */:
+ return isIdentifier();
+ case 11 /* ArgumentExpressions */:
+ case 15 /* ArrayLiteralMembers */:
+ return token === 24 /* CommaToken */ || token === 22 /* DotDotDotToken */ || isStartOfExpression();
+ case 16 /* Parameters */:
+ return isStartOfParameter();
+ case 18 /* TypeArguments */:
+ case 19 /* TupleElementTypes */:
+ return token === 24 /* CommaToken */ || isStartOfType();
+ case 20 /* HeritageClauses */:
+ return isHeritageClause();
+ case 21 /* ImportOrExportSpecifiers */:
+ return ts.tokenIsIdentifierOrKeyword(token);
+ case 13 /* JsxAttributes */:
+ return ts.tokenIsIdentifierOrKeyword(token) || token === 15 /* OpenBraceToken */;
+ case 14 /* JsxChildren */:
+ return true;
+ case 22 /* JSDocFunctionParameters */:
+ case 23 /* JSDocTypeArguments */:
+ case 25 /* JSDocTupleTypes */:
+ return JSDocParser.isJSDocType();
+ case 24 /* JSDocRecordMembers */:
+ return isSimplePropertyName();
+ }
+ ts.Debug.fail("Non-exhaustive case in 'isListElement'.");
+ }
+ function isValidHeritageClauseObjectLiteral() {
+ ts.Debug.assert(token === 15 /* OpenBraceToken */);
+ if (nextToken() === 16 /* CloseBraceToken */) {
+ // if we see "extends {}" then only treat the {} as what we're extending (and not
+ // the class body) if we have:
+ //
+ // extends {} {
+ // extends {},
+ // extends {} extends
+ // extends {} implements
+ var next = nextToken();
+ return next === 24 /* CommaToken */ || next === 15 /* OpenBraceToken */ || next === 83 /* ExtendsKeyword */ || next === 106 /* ImplementsKeyword */;
+ }
+ return true;
+ }
+ function nextTokenIsIdentifier() {
+ nextToken();
+ return isIdentifier();
+ }
+ function nextTokenIsIdentifierOrKeyword() {
+ nextToken();
+ return ts.tokenIsIdentifierOrKeyword(token);
+ }
+ function isHeritageClauseExtendsOrImplementsKeyword() {
+ if (token === 106 /* ImplementsKeyword */ ||
+ token === 83 /* ExtendsKeyword */) {
+ return lookAhead(nextTokenIsStartOfExpression);
+ }
+ return false;
+ }
+ function nextTokenIsStartOfExpression() {
+ nextToken();
+ return isStartOfExpression();
+ }
+ // True if positioned at a list terminator
+ function isListTerminator(kind) {
+ if (token === 1 /* EndOfFileToken */) {
+ // Being at the end of the file ends all lists.
+ return true;
+ }
+ switch (kind) {
+ case 1 /* BlockStatements */:
+ case 2 /* SwitchClauses */:
+ case 4 /* TypeMembers */:
+ case 5 /* ClassMembers */:
+ case 6 /* EnumMembers */:
+ case 12 /* ObjectLiteralMembers */:
+ case 9 /* ObjectBindingElements */:
+ case 21 /* ImportOrExportSpecifiers */:
+ return token === 16 /* CloseBraceToken */;
+ case 3 /* SwitchClauseStatements */:
+ return token === 16 /* CloseBraceToken */ || token === 71 /* CaseKeyword */ || token === 77 /* DefaultKeyword */;
+ case 7 /* HeritageClauseElement */:
+ return token === 15 /* OpenBraceToken */ || token === 83 /* ExtendsKeyword */ || token === 106 /* ImplementsKeyword */;
+ case 8 /* VariableDeclarations */:
+ return isVariableDeclaratorListTerminator();
+ case 17 /* TypeParameters */:
+ // Tokens other than '>' are here for better error recovery
+ return token === 27 /* GreaterThanToken */ || token === 17 /* OpenParenToken */ || token === 15 /* OpenBraceToken */ || token === 83 /* ExtendsKeyword */ || token === 106 /* ImplementsKeyword */;
+ case 11 /* ArgumentExpressions */:
+ // Tokens other than ')' are here for better error recovery
+ return token === 18 /* CloseParenToken */ || token === 23 /* SemicolonToken */;
+ case 15 /* ArrayLiteralMembers */:
+ case 19 /* TupleElementTypes */:
+ case 10 /* ArrayBindingElements */:
+ return token === 20 /* CloseBracketToken */;
+ case 16 /* Parameters */:
+ // Tokens other than ')' and ']' (the latter for index signatures) are here for better error recovery
+ return token === 18 /* CloseParenToken */ || token === 20 /* CloseBracketToken */ /*|| token === SyntaxKind.OpenBraceToken*/;
+ case 18 /* TypeArguments */:
+ // Tokens other than '>' are here for better error recovery
+ return token === 27 /* GreaterThanToken */ || token === 17 /* OpenParenToken */;
+ case 20 /* HeritageClauses */:
+ return token === 15 /* OpenBraceToken */ || token === 16 /* CloseBraceToken */;
+ case 13 /* JsxAttributes */:
+ return token === 27 /* GreaterThanToken */ || token === 39 /* SlashToken */;
+ case 14 /* JsxChildren */:
+ return token === 25 /* LessThanToken */ && lookAhead(nextTokenIsSlash);
+ case 22 /* JSDocFunctionParameters */:
+ return token === 18 /* CloseParenToken */ || token === 54 /* ColonToken */ || token === 16 /* CloseBraceToken */;
+ case 23 /* JSDocTypeArguments */:
+ return token === 27 /* GreaterThanToken */ || token === 16 /* CloseBraceToken */;
+ case 25 /* JSDocTupleTypes */:
+ return token === 20 /* CloseBracketToken */ || token === 16 /* CloseBraceToken */;
+ case 24 /* JSDocRecordMembers */:
+ return token === 16 /* CloseBraceToken */;
+ }
+ }
+ function isVariableDeclaratorListTerminator() {
+ // If we can consume a semicolon (either explicitly, or with ASI), then consider us done
+ // with parsing the list of variable declarators.
+ if (canParseSemicolon()) {
+ return true;
+ }
+ // in the case where we're parsing the variable declarator of a 'for-in' statement, we
+ // are done if we see an 'in' keyword in front of us. Same with for-of
+ if (isInOrOfKeyword(token)) {
+ return true;
+ }
+ // ERROR RECOVERY TWEAK:
+ // For better error recovery, if we see an '=>' then we just stop immediately. We've got an
+ // arrow function here and it's going to be very unlikely that we'll resynchronize and get
+ // another variable declaration.
+ if (token === 34 /* EqualsGreaterThanToken */) {
+ return true;
+ }
+ // Keep trying to parse out variable declarators.
+ return false;
+ }
+ // True if positioned at element or terminator of the current list or any enclosing list
+ function isInSomeParsingContext() {
+ for (var kind = 0; kind < 26 /* Count */; kind++) {
+ if (parsingContext & (1 << kind)) {
+ if (isListElement(kind, /* inErrorRecovery */ true) || isListTerminator(kind)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ // Parses a list of elements
+ function parseList(kind, parseElement) {
+ var saveParsingContext = parsingContext;
+ parsingContext |= 1 << kind;
+ var result = [];
+ result.pos = getNodePos();
+ while (!isListTerminator(kind)) {
+ if (isListElement(kind, /* inErrorRecovery */ false)) {
+ var element = parseListElement(kind, parseElement);
+ result.push(element);
+ continue;
+ }
+ if (abortParsingListOrMoveToNextToken(kind)) {
+ break;
+ }
+ }
+ result.end = getNodeEnd();
+ parsingContext = saveParsingContext;
+ return result;
+ }
+ function parseListElement(parsingContext, parseElement) {
+ var node = currentNode(parsingContext);
+ if (node) {
+ return consumeNode(node);
+ }
+ return parseElement();
+ }
+ function currentNode(parsingContext) {
+ // If there is an outstanding parse error that we've encountered, but not attached to
+ // some node, then we cannot get a node from the old source tree. This is because we
+ // want to mark the next node we encounter as being unusable.
+ //
+ // Note: This may be too conservative. Perhaps we could reuse the node and set the bit
+ // on it (or its leftmost child) as having the error. For now though, being conservative
+ // is nice and likely won't ever affect perf.
+ if (parseErrorBeforeNextFinishedNode) {
+ return undefined;
+ }
+ if (!syntaxCursor) {
+ // if we don't have a cursor, we could never return a node from the old tree.
+ return undefined;
+ }
+ var node = syntaxCursor.currentNode(scanner.getStartPos());
+ // Can't reuse a missing node.
+ if (ts.nodeIsMissing(node)) {
+ return undefined;
+ }
+ // Can't reuse a node that intersected the change range.
+ if (node.intersectsChange) {
+ return undefined;
+ }
+ // Can't reuse a node that contains a parse error. This is necessary so that we
+ // produce the same set of errors again.
+ if (ts.containsParseError(node)) {
+ return undefined;
+ }
+ // We can only reuse a node if it was parsed under the same strict mode that we're
+ // currently in. i.e. if we originally parsed a node in non-strict mode, but then
+ // the user added 'using strict' at the top of the file, then we can't use that node
+ // again as the presense of strict mode may cause us to parse the tokens in the file
+ // differetly.
+ //
+ // Note: we *can* reuse tokens when the strict mode changes. That's because tokens
+ // are unaffected by strict mode. It's just the parser will decide what to do with it
+ // differently depending on what mode it is in.
+ //
+ // This also applies to all our other context flags as well.
+ var nodeContextFlags = node.parserContextFlags & 31 /* ParserGeneratedFlags */;
+ if (nodeContextFlags !== contextFlags) {
+ return undefined;
+ }
+ // Ok, we have a node that looks like it could be reused. Now verify that it is valid
+ // in the currest list parsing context that we're currently at.
+ if (!canReuseNode(node, parsingContext)) {
+ return undefined;
+ }
+ return node;
+ }
+ function consumeNode(node) {
+ // Move the scanner so it is after the node we just consumed.
+ scanner.setTextPos(node.end);
+ nextToken();
+ return node;
+ }
+ function canReuseNode(node, parsingContext) {
+ switch (parsingContext) {
+ case 5 /* ClassMembers */:
+ return isReusableClassMember(node);
+ case 2 /* SwitchClauses */:
+ return isReusableSwitchClause(node);
+ case 0 /* SourceElements */:
+ case 1 /* BlockStatements */:
+ case 3 /* SwitchClauseStatements */:
+ return isReusableStatement(node);
+ case 6 /* EnumMembers */:
+ return isReusableEnumMember(node);
+ case 4 /* TypeMembers */:
+ return isReusableTypeMember(node);
+ case 8 /* VariableDeclarations */:
+ return isReusableVariableDeclaration(node);
+ case 16 /* Parameters */:
+ return isReusableParameter(node);
+ // Any other lists we do not care about reusing nodes in. But feel free to add if
+ // you can do so safely. Danger areas involve nodes that may involve speculative
+ // parsing. If speculative parsing is involved with the node, then the range the
+ // parser reached while looking ahead might be in the edited range (see the example
+ // in canReuseVariableDeclaratorNode for a good case of this).
+ case 20 /* HeritageClauses */:
+ // This would probably be safe to reuse. There is no speculative parsing with
+ // heritage clauses.
+ case 17 /* TypeParameters */:
+ // This would probably be safe to reuse. There is no speculative parsing with
+ // type parameters. Note that that's because type *parameters* only occur in
+ // unambiguous *type* contexts. While type *arguments* occur in very ambiguous
+ // *expression* contexts.
+ case 19 /* TupleElementTypes */:
+ // This would probably be safe to reuse. There is no speculative parsing with
+ // tuple types.
+ // Technically, type argument list types are probably safe to reuse. While
+ // speculative parsing is involved with them (since type argument lists are only
+ // produced from speculative parsing a < as a type argument list), we only have
+ // the types because speculative parsing succeeded. Thus, the lookahead never
+ // went past the end of the list and rewound.
+ case 18 /* TypeArguments */:
+ // Note: these are almost certainly not safe to ever reuse. Expressions commonly
+ // need a large amount of lookahead, and we should not reuse them as they may
+ // have actually intersected the edit.
+ case 11 /* ArgumentExpressions */:
+ // This is not safe to reuse for the same reason as the 'AssignmentExpression'
+ // cases. i.e. a property assignment may end with an expression, and thus might
+ // have lookahead far beyond it's old node.
+ case 12 /* ObjectLiteralMembers */:
+ // This is probably not safe to reuse. There can be speculative parsing with
+ // type names in a heritage clause. There can be generic names in the type
+ // name list, and there can be left hand side expressions (which can have type
+ // arguments.)
+ case 7 /* HeritageClauseElement */:
+ // Perhaps safe to reuse, but it's unlikely we'd see more than a dozen attributes
+ // on any given element. Same for children.
+ case 13 /* JsxAttributes */:
+ case 14 /* JsxChildren */:
+ }
+ return false;
+ }
+ function isReusableClassMember(node) {
+ if (node) {
+ switch (node.kind) {
+ case 144 /* Constructor */:
+ case 149 /* IndexSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 141 /* PropertyDeclaration */:
+ case 191 /* SemicolonClassElement */:
+ return true;
+ case 143 /* MethodDeclaration */:
+ // Method declarations are not necessarily reusable. An object-literal
+ // may have a method calls "constructor(...)" and we must reparse that
+ // into an actual .ConstructorDeclaration.
+ var methodDeclaration = node;
+ var nameIsConstructor = methodDeclaration.name.kind === 69 /* Identifier */ &&
+ methodDeclaration.name.originalKeywordKind === 121 /* ConstructorKeyword */;
+ return !nameIsConstructor;
+ }
+ }
+ return false;
+ }
+ function isReusableSwitchClause(node) {
+ if (node) {
+ switch (node.kind) {
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ return true;
+ }
+ }
+ return false;
+ }
+ function isReusableStatement(node) {
+ if (node) {
+ switch (node.kind) {
+ case 213 /* FunctionDeclaration */:
+ case 193 /* VariableStatement */:
+ case 192 /* Block */:
+ case 196 /* IfStatement */:
+ case 195 /* ExpressionStatement */:
+ case 208 /* ThrowStatement */:
+ case 204 /* ReturnStatement */:
+ case 206 /* SwitchStatement */:
+ case 203 /* BreakStatement */:
+ case 202 /* ContinueStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 199 /* ForStatement */:
+ case 198 /* WhileStatement */:
+ case 205 /* WithStatement */:
+ case 194 /* EmptyStatement */:
+ case 209 /* TryStatement */:
+ case 207 /* LabeledStatement */:
+ case 197 /* DoStatement */:
+ case 210 /* DebuggerStatement */:
+ case 222 /* ImportDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 228 /* ExportDeclaration */:
+ case 227 /* ExportAssignment */:
+ case 218 /* ModuleDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ return true;
+ }
+ }
+ return false;
+ }
+ function isReusableEnumMember(node) {
+ return node.kind === 247 /* EnumMember */;
+ }
+ function isReusableTypeMember(node) {
+ if (node) {
+ switch (node.kind) {
+ case 148 /* ConstructSignature */:
+ case 142 /* MethodSignature */:
+ case 149 /* IndexSignature */:
+ case 140 /* PropertySignature */:
+ case 147 /* CallSignature */:
+ return true;
+ }
+ }
+ return false;
+ }
+ function isReusableVariableDeclaration(node) {
+ if (node.kind !== 211 /* VariableDeclaration */) {
+ return false;
+ }
+ // Very subtle incremental parsing bug. Consider the following code:
+ //
+ // let v = new List < A, B
+ //
+ // This is actually legal code. It's a list of variable declarators "v = new List<A"
+ // on one side and "B" on the other. If you then change that to:
+ //
+ // let v = new List < A, B >()
+ //
+ // then we have a problem. "v = new List<A" doesn't intersect the change range, so we
+ // start reparsing at "B" and we completely fail to handle this properly.
+ //
+ // In order to prevent this, we do not allow a variable declarator to be reused if it
+ // has an initializer.
+ var variableDeclarator = node;
+ return variableDeclarator.initializer === undefined;
+ }
+ function isReusableParameter(node) {
+ if (node.kind !== 138 /* Parameter */) {
+ return false;
+ }
+ // See the comment in isReusableVariableDeclaration for why we do this.
+ var parameter = node;
+ return parameter.initializer === undefined;
+ }
+ // Returns true if we should abort parsing.
+ function abortParsingListOrMoveToNextToken(kind) {
+ parseErrorAtCurrentToken(parsingContextErrors(kind));
+ if (isInSomeParsingContext()) {
+ return true;
+ }
+ nextToken();
+ return false;
+ }
+ function parsingContextErrors(context) {
+ switch (context) {
+ case 0 /* SourceElements */: return ts.Diagnostics.Declaration_or_statement_expected;
+ case 1 /* BlockStatements */: return ts.Diagnostics.Declaration_or_statement_expected;
+ case 2 /* SwitchClauses */: return ts.Diagnostics.case_or_default_expected;
+ case 3 /* SwitchClauseStatements */: return ts.Diagnostics.Statement_expected;
+ case 4 /* TypeMembers */: return ts.Diagnostics.Property_or_signature_expected;
+ case 5 /* ClassMembers */: return ts.Diagnostics.Unexpected_token_A_constructor_method_accessor_or_property_was_expected;
+ case 6 /* EnumMembers */: return ts.Diagnostics.Enum_member_expected;
+ case 7 /* HeritageClauseElement */: return ts.Diagnostics.Expression_expected;
+ case 8 /* VariableDeclarations */: return ts.Diagnostics.Variable_declaration_expected;
+ case 9 /* ObjectBindingElements */: return ts.Diagnostics.Property_destructuring_pattern_expected;
+ case 10 /* ArrayBindingElements */: return ts.Diagnostics.Array_element_destructuring_pattern_expected;
+ case 11 /* ArgumentExpressions */: return ts.Diagnostics.Argument_expression_expected;
+ case 12 /* ObjectLiteralMembers */: return ts.Diagnostics.Property_assignment_expected;
+ case 15 /* ArrayLiteralMembers */: return ts.Diagnostics.Expression_or_comma_expected;
+ case 16 /* Parameters */: return ts.Diagnostics.Parameter_declaration_expected;
+ case 17 /* TypeParameters */: return ts.Diagnostics.Type_parameter_declaration_expected;
+ case 18 /* TypeArguments */: return ts.Diagnostics.Type_argument_expected;
+ case 19 /* TupleElementTypes */: return ts.Diagnostics.Type_expected;
+ case 20 /* HeritageClauses */: return ts.Diagnostics.Unexpected_token_expected;
+ case 21 /* ImportOrExportSpecifiers */: return ts.Diagnostics.Identifier_expected;
+ case 13 /* JsxAttributes */: return ts.Diagnostics.Identifier_expected;
+ case 14 /* JsxChildren */: return ts.Diagnostics.Identifier_expected;
+ case 22 /* JSDocFunctionParameters */: return ts.Diagnostics.Parameter_declaration_expected;
+ case 23 /* JSDocTypeArguments */: return ts.Diagnostics.Type_argument_expected;
+ case 25 /* JSDocTupleTypes */: return ts.Diagnostics.Type_expected;
+ case 24 /* JSDocRecordMembers */: return ts.Diagnostics.Property_assignment_expected;
+ }
+ }
+ ;
+ // Parses a comma-delimited list of elements
+ function parseDelimitedList(kind, parseElement, considerSemicolonAsDelimeter) {
+ var saveParsingContext = parsingContext;
+ parsingContext |= 1 << kind;
+ var result = [];
+ result.pos = getNodePos();
+ var commaStart = -1; // Meaning the previous token was not a comma
+ while (true) {
+ if (isListElement(kind, /* inErrorRecovery */ false)) {
+ result.push(parseListElement(kind, parseElement));
+ commaStart = scanner.getTokenPos();
+ if (parseOptional(24 /* CommaToken */)) {
+ continue;
+ }
+ commaStart = -1; // Back to the state where the last token was not a comma
+ if (isListTerminator(kind)) {
+ break;
+ }
+ // We didn't get a comma, and the list wasn't terminated, explicitly parse
+ // out a comma so we give a good error message.
+ parseExpected(24 /* CommaToken */);
+ // If the token was a semicolon, and the caller allows that, then skip it and
+ // continue. This ensures we get back on track and don't result in tons of
+ // parse errors. For example, this can happen when people do things like use
+ // a semicolon to delimit object literal members. Note: we'll have already
+ // reported an error when we called parseExpected above.
+ if (considerSemicolonAsDelimeter && token === 23 /* SemicolonToken */ && !scanner.hasPrecedingLineBreak()) {
+ nextToken();
+ }
+ continue;
+ }
+ if (isListTerminator(kind)) {
+ break;
+ }
+ if (abortParsingListOrMoveToNextToken(kind)) {
+ break;
+ }
+ }
+ // Recording the trailing comma is deliberately done after the previous
+ // loop, and not just if we see a list terminator. This is because the list
+ // may have ended incorrectly, but it is still important to know if there
+ // was a trailing comma.
+ // Check if the last token was a comma.
+ if (commaStart >= 0) {
+ // Always preserve a trailing comma by marking it on the NodeArray
+ result.hasTrailingComma = true;
+ }
+ result.end = getNodeEnd();
+ parsingContext = saveParsingContext;
+ return result;
+ }
+ function createMissingList() {
+ var pos = getNodePos();
+ var result = [];
+ result.pos = pos;
+ result.end = pos;
+ return result;
+ }
+ function parseBracketedList(kind, parseElement, open, close) {
+ if (parseExpected(open)) {
+ var result = parseDelimitedList(kind, parseElement);
+ parseExpected(close);
+ return result;
+ }
+ return createMissingList();
+ }
+ // The allowReservedWords parameter controls whether reserved words are permitted after the first dot
+ function parseEntityName(allowReservedWords, diagnosticMessage) {
+ var entity = parseIdentifier(diagnosticMessage);
+ while (parseOptional(21 /* DotToken */)) {
+ var node = createNode(135 /* QualifiedName */, entity.pos);
+ node.left = entity;
+ node.right = parseRightSideOfDot(allowReservedWords);
+ entity = finishNode(node);
+ }
+ return entity;
+ }
+ function parseRightSideOfDot(allowIdentifierNames) {
+ // Technically a keyword is valid here as all identifiers and keywords are identifier names.
+ // However, often we'll encounter this in error situations when the identifier or keyword
+ // is actually starting another valid construct.
+ //
+ // So, we check for the following specific case:
+ //
+ // name.
+ // identifierOrKeyword identifierNameOrKeyword
+ //
+ // Note: the newlines are important here. For example, if that above code
+ // were rewritten into:
+ //
+ // name.identifierOrKeyword
+ // identifierNameOrKeyword
+ //
+ // Then we would consider it valid. That's because ASI would take effect and
+ // the code would be implicitly: "name.identifierOrKeyword; identifierNameOrKeyword".
+ // In the first case though, ASI will not take effect because there is not a
+ // line terminator after the identifier or keyword.
+ if (scanner.hasPrecedingLineBreak() && ts.tokenIsIdentifierOrKeyword(token)) {
+ var matchesPattern = lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
+ if (matchesPattern) {
+ // Report that we need an identifier. However, report it right after the dot,
+ // and not on the next token. This is because the next token might actually
+ // be an identifier and the error would be quite confusing.
+ return createMissingNode(69 /* Identifier */, /*reportAtCurrentToken*/ true, ts.Diagnostics.Identifier_expected);
+ }
+ }
+ return allowIdentifierNames ? parseIdentifierName() : parseIdentifier();
+ }
+ function parseTemplateExpression() {
+ var template = createNode(183 /* TemplateExpression */);
+ template.head = parseLiteralNode();
+ ts.Debug.assert(template.head.kind === 12 /* TemplateHead */, "Template head has wrong token kind");
+ var templateSpans = [];
+ templateSpans.pos = getNodePos();
+ do {
+ templateSpans.push(parseTemplateSpan());
+ } while (ts.lastOrUndefined(templateSpans).literal.kind === 13 /* TemplateMiddle */);
+ templateSpans.end = getNodeEnd();
+ template.templateSpans = templateSpans;
+ return finishNode(template);
+ }
+ function parseTemplateSpan() {
+ var span = createNode(190 /* TemplateSpan */);
+ span.expression = allowInAnd(parseExpression);
+ var literal;
+ if (token === 16 /* CloseBraceToken */) {
+ reScanTemplateToken();
+ literal = parseLiteralNode();
+ }
+ else {
+ literal = parseExpectedToken(14 /* TemplateTail */, /*reportAtCurrentPosition*/ false, ts.Diagnostics._0_expected, ts.tokenToString(16 /* CloseBraceToken */));
+ }
+ span.literal = literal;
+ return finishNode(span);
+ }
+ function parseLiteralNode(internName) {
+ var node = createNode(token);
+ var text = scanner.getTokenValue();
+ node.text = internName ? internIdentifier(text) : text;
+ if (scanner.hasExtendedUnicodeEscape()) {
+ node.hasExtendedUnicodeEscape = true;
+ }
+ if (scanner.isUnterminated()) {
+ node.isUnterminated = true;
+ }
+ var tokenPos = scanner.getTokenPos();
+ nextToken();
+ finishNode(node);
+ // Octal literals are not allowed in strict mode or ES5
+ // Note that theoretically the following condition would hold true literals like 009,
+ // which is not octal.But because of how the scanner separates the tokens, we would
+ // never get a token like this. Instead, we would get 00 and 9 as two separate tokens.
+ // We also do not need to check for negatives because any prefix operator would be part of a
+ // parent unary expression.
+ if (node.kind === 8 /* NumericLiteral */
+ && sourceText.charCodeAt(tokenPos) === 48 /* _0 */
+ && ts.isOctalDigit(sourceText.charCodeAt(tokenPos + 1))) {
+ node.flags |= 65536 /* OctalLiteral */;
+ }
+ return node;
+ }
+ // TYPES
+ function parseTypeReferenceOrTypePredicate() {
+ var typeName = parseEntityName(/*allowReservedWords*/ false, ts.Diagnostics.Type_expected);
+ if (typeName.kind === 69 /* Identifier */ && token === 124 /* IsKeyword */ && !scanner.hasPrecedingLineBreak()) {
+ nextToken();
+ var node_1 = createNode(150 /* TypePredicate */, typeName.pos);
+ node_1.parameterName = typeName;
+ node_1.type = parseType();
+ return finishNode(node_1);
+ }
+ var node = createNode(151 /* TypeReference */, typeName.pos);
+ node.typeName = typeName;
+ if (!scanner.hasPrecedingLineBreak() && token === 25 /* LessThanToken */) {
+ node.typeArguments = parseBracketedList(18 /* TypeArguments */, parseType, 25 /* LessThanToken */, 27 /* GreaterThanToken */);
+ }
+ return finishNode(node);
+ }
+ function parseTypeQuery() {
+ var node = createNode(154 /* TypeQuery */);
+ parseExpected(101 /* TypeOfKeyword */);
+ node.exprName = parseEntityName(/*allowReservedWords*/ true);
+ return finishNode(node);
+ }
+ function parseTypeParameter() {
+ var node = createNode(137 /* TypeParameter */);
+ node.name = parseIdentifier();
+ if (parseOptional(83 /* ExtendsKeyword */)) {
+ // It's not uncommon for people to write improper constraints to a generic. If the
+ // user writes a constraint that is an expression and not an actual type, then parse
+ // it out as an expression (so we can recover well), but report that a type is needed
+ // instead.
+ if (isStartOfType() || !isStartOfExpression()) {
+ node.constraint = parseType();
+ }
+ else {
+ // It was not a type, and it looked like an expression. Parse out an expression
+ // here so we recover well. Note: it is important that we call parseUnaryExpression
+ // and not parseExpression here. If the user has:
+ //
+ // <T extends "">
+ //
+ // We do *not* want to consume the > as we're consuming the expression for "".
+ node.expression = parseUnaryExpressionOrHigher();
+ }
+ }
+ return finishNode(node);
+ }
+ function parseTypeParameters() {
+ if (token === 25 /* LessThanToken */) {
+ return parseBracketedList(17 /* TypeParameters */, parseTypeParameter, 25 /* LessThanToken */, 27 /* GreaterThanToken */);
+ }
+ }
+ function parseParameterType() {
+ if (parseOptional(54 /* ColonToken */)) {
+ return token === 9 /* StringLiteral */
+ ? parseLiteralNode(/*internName*/ true)
+ : parseType();
+ }
+ return undefined;
+ }
+ function isStartOfParameter() {
+ return token === 22 /* DotDotDotToken */ || isIdentifierOrPattern() || ts.isModifier(token) || token === 55 /* AtToken */;
+ }
+ function setModifiers(node, modifiers) {
+ if (modifiers) {
+ node.flags |= modifiers.flags;
+ node.modifiers = modifiers;
+ }
+ }
+ function parseParameter() {
+ var node = createNode(138 /* Parameter */);
+ node.decorators = parseDecorators();
+ setModifiers(node, parseModifiers());
+ node.dotDotDotToken = parseOptionalToken(22 /* DotDotDotToken */);
+ // FormalParameter [Yield,Await]:
+ // BindingElement[?Yield,?Await]
+ node.name = parseIdentifierOrPattern();
+ if (ts.getFullWidth(node.name) === 0 && node.flags === 0 && ts.isModifier(token)) {
+ // in cases like
+ // 'use strict'
+ // function foo(static)
+ // isParameter('static') === true, because of isModifier('static')
+ // however 'static' is not a legal identifier in a strict mode.
+ // so result of this function will be ParameterDeclaration (flags = 0, name = missing, type = undefined, initializer = undefined)
+ // and current token will not change => parsing of the enclosing parameter list will last till the end of time (or OOM)
+ // to avoid this we'll advance cursor to the next token.
+ nextToken();
+ }
+ node.questionToken = parseOptionalToken(53 /* QuestionToken */);
+ node.type = parseParameterType();
+ node.initializer = parseBindingElementInitializer(/*inParameter*/ true);
+ // Do not check for initializers in an ambient context for parameters. This is not
+ // a grammar error because the grammar allows arbitrary call signatures in
+ // an ambient context.
+ // It is actually not necessary for this to be an error at all. The reason is that
+ // function/constructor implementations are syntactically disallowed in ambient
+ // contexts. In addition, parameter initializers are semantically disallowed in
+ // overload signatures. So parameter initializers are transitively disallowed in
+ // ambient contexts.
+ return finishNode(node);
+ }
+ function parseBindingElementInitializer(inParameter) {
+ return inParameter ? parseParameterInitializer() : parseNonParameterInitializer();
+ }
+ function parseParameterInitializer() {
+ return parseInitializer(/*inParameter*/ true);
+ }
+ function fillSignature(returnToken, yieldContext, awaitContext, requireCompleteParameterList, signature) {
+ var returnTokenRequired = returnToken === 34 /* EqualsGreaterThanToken */;
+ signature.typeParameters = parseTypeParameters();
+ signature.parameters = parseParameterList(yieldContext, awaitContext, requireCompleteParameterList);
+ if (returnTokenRequired) {
+ parseExpected(returnToken);
+ signature.type = parseType();
+ }
+ else if (parseOptional(returnToken)) {
+ signature.type = parseType();
+ }
+ }
+ function parseParameterList(yieldContext, awaitContext, requireCompleteParameterList) {
+ // FormalParameters [Yield,Await]: (modified)
+ // [empty]
+ // FormalParameterList[?Yield,Await]
+ //
+ // FormalParameter[Yield,Await]: (modified)
+ // BindingElement[?Yield,Await]
+ //
+ // BindingElement [Yield,Await]: (modified)
+ // SingleNameBinding[?Yield,?Await]
+ // BindingPattern[?Yield,?Await]Initializer [In, ?Yield,?Await] opt
+ //
+ // SingleNameBinding [Yield,Await]:
+ // BindingIdentifier[?Yield,?Await]Initializer [In, ?Yield,?Await] opt
+ if (parseExpected(17 /* OpenParenToken */)) {
+ var savedYieldContext = inYieldContext();
+ var savedAwaitContext = inAwaitContext();
+ setYieldContext(yieldContext);
+ setAwaitContext(awaitContext);
+ var result = parseDelimitedList(16 /* Parameters */, parseParameter);
+ setYieldContext(savedYieldContext);
+ setAwaitContext(savedAwaitContext);
+ if (!parseExpected(18 /* CloseParenToken */) && requireCompleteParameterList) {
+ // Caller insisted that we had to end with a ) We didn't. So just return
+ // undefined here.
+ return undefined;
+ }
+ return result;
+ }
+ // We didn't even have an open paren. If the caller requires a complete parameter list,
+ // we definitely can't provide that. However, if they're ok with an incomplete one,
+ // then just return an empty set of parameters.
+ return requireCompleteParameterList ? undefined : createMissingList();
+ }
+ function parseTypeMemberSemicolon() {
+ // We allow type members to be separated by commas or (possibly ASI) semicolons.
+ // First check if it was a comma. If so, we're done with the member.
+ if (parseOptional(24 /* CommaToken */)) {
+ return;
+ }
+ // Didn't have a comma. We must have a (possible ASI) semicolon.
+ parseSemicolon();
+ }
+ function parseSignatureMember(kind) {
+ var node = createNode(kind);
+ if (kind === 148 /* ConstructSignature */) {
+ parseExpected(92 /* NewKeyword */);
+ }
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ false, /*awaitContext*/ false, /*requireCompleteParameterList*/ false, node);
+ parseTypeMemberSemicolon();
+ return finishNode(node);
+ }
+ function isIndexSignature() {
+ if (token !== 19 /* OpenBracketToken */) {
+ return false;
+ }
+ return lookAhead(isUnambiguouslyIndexSignature);
+ }
+ function isUnambiguouslyIndexSignature() {
+ // The only allowed sequence is:
+ //
+ // [id:
+ //
+ // However, for error recovery, we also check the following cases:
+ //
+ // [...
+ // [id,
+ // [id?,
+ // [id?:
+ // [id?]
+ // [public id
+ // [private id
+ // [protected id
+ // []
+ //
+ nextToken();
+ if (token === 22 /* DotDotDotToken */ || token === 20 /* CloseBracketToken */) {
+ return true;
+ }
+ if (ts.isModifier(token)) {
+ nextToken();
+ if (isIdentifier()) {
+ return true;
+ }
+ }
+ else if (!isIdentifier()) {
+ return false;
+ }
+ else {
+ // Skip the identifier
+ nextToken();
+ }
+ // A colon signifies a well formed indexer
+ // A comma should be a badly formed indexer because comma expressions are not allowed
+ // in computed properties.
+ if (token === 54 /* ColonToken */ || token === 24 /* CommaToken */) {
+ return true;
+ }
+ // Question mark could be an indexer with an optional property,
+ // or it could be a conditional expression in a computed property.
+ if (token !== 53 /* QuestionToken */) {
+ return false;
+ }
+ // If any of the following tokens are after the question mark, it cannot
+ // be a conditional expression, so treat it as an indexer.
+ nextToken();
+ return token === 54 /* ColonToken */ || token === 24 /* CommaToken */ || token === 20 /* CloseBracketToken */;
+ }
+ function parseIndexSignatureDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(149 /* IndexSignature */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ node.parameters = parseBracketedList(16 /* Parameters */, parseParameter, 19 /* OpenBracketToken */, 20 /* CloseBracketToken */);
+ node.type = parseTypeAnnotation();
+ parseTypeMemberSemicolon();
+ return finishNode(node);
+ }
+ function parsePropertyOrMethodSignature() {
+ var fullStart = scanner.getStartPos();
+ var name = parsePropertyName();
+ var questionToken = parseOptionalToken(53 /* QuestionToken */);
+ if (token === 17 /* OpenParenToken */ || token === 25 /* LessThanToken */) {
+ var method = createNode(142 /* MethodSignature */, fullStart);
+ method.name = name;
+ method.questionToken = questionToken;
+ // Method signatues don't exist in expression contexts. So they have neither
+ // [Yield] nor [Await]
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ false, /*awaitContext*/ false, /*requireCompleteParameterList*/ false, method);
+ parseTypeMemberSemicolon();
+ return finishNode(method);
+ }
+ else {
+ var property = createNode(140 /* PropertySignature */, fullStart);
+ property.name = name;
+ property.questionToken = questionToken;
+ property.type = parseTypeAnnotation();
+ parseTypeMemberSemicolon();
+ return finishNode(property);
+ }
+ }
+ function isStartOfTypeMember() {
+ switch (token) {
+ case 17 /* OpenParenToken */:
+ case 25 /* LessThanToken */:
+ case 19 /* OpenBracketToken */:
+ return true;
+ default:
+ if (ts.isModifier(token)) {
+ var result = lookAhead(isStartOfIndexSignatureDeclaration);
+ if (result) {
+ return result;
+ }
+ }
+ return isLiteralPropertyName() && lookAhead(isTypeMemberWithLiteralPropertyName);
+ }
+ }
+ function isStartOfIndexSignatureDeclaration() {
+ while (ts.isModifier(token)) {
+ nextToken();
+ }
+ return isIndexSignature();
+ }
+ function isTypeMemberWithLiteralPropertyName() {
+ nextToken();
+ return token === 17 /* OpenParenToken */ ||
+ token === 25 /* LessThanToken */ ||
+ token === 53 /* QuestionToken */ ||
+ token === 54 /* ColonToken */ ||
+ canParseSemicolon();
+ }
+ function parseTypeMember() {
+ switch (token) {
+ case 17 /* OpenParenToken */:
+ case 25 /* LessThanToken */:
+ return parseSignatureMember(147 /* CallSignature */);
+ case 19 /* OpenBracketToken */:
+ // Indexer or computed property
+ return isIndexSignature()
+ ? parseIndexSignatureDeclaration(scanner.getStartPos(), /*decorators*/ undefined, /*modifiers*/ undefined)
+ : parsePropertyOrMethodSignature();
+ case 92 /* NewKeyword */:
+ if (lookAhead(isStartOfConstructSignature)) {
+ return parseSignatureMember(148 /* ConstructSignature */);
+ }
+ // fall through.
+ case 9 /* StringLiteral */:
+ case 8 /* NumericLiteral */:
+ return parsePropertyOrMethodSignature();
+ default:
+ // Index declaration as allowed as a type member. But as per the grammar,
+ // they also allow modifiers. So we have to check for an index declaration
+ // that might be following modifiers. This ensures that things work properly
+ // when incrementally parsing as the parser will produce the Index declaration
+ // if it has the same text regardless of whether it is inside a class or an
+ // object type.
+ if (ts.isModifier(token)) {
+ var result = tryParse(parseIndexSignatureWithModifiers);
+ if (result) {
+ return result;
+ }
+ }
+ if (ts.tokenIsIdentifierOrKeyword(token)) {
+ return parsePropertyOrMethodSignature();
+ }
+ }
+ }
+ function parseIndexSignatureWithModifiers() {
+ var fullStart = scanner.getStartPos();
+ var decorators = parseDecorators();
+ var modifiers = parseModifiers();
+ return isIndexSignature()
+ ? parseIndexSignatureDeclaration(fullStart, decorators, modifiers)
+ : undefined;
+ }
+ function isStartOfConstructSignature() {
+ nextToken();
+ return token === 17 /* OpenParenToken */ || token === 25 /* LessThanToken */;
+ }
+ function parseTypeLiteral() {
+ var node = createNode(155 /* TypeLiteral */);
+ node.members = parseObjectTypeMembers();
+ return finishNode(node);
+ }
+ function parseObjectTypeMembers() {
+ var members;
+ if (parseExpected(15 /* OpenBraceToken */)) {
+ members = parseList(4 /* TypeMembers */, parseTypeMember);
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ members = createMissingList();
+ }
+ return members;
+ }
+ function parseTupleType() {
+ var node = createNode(157 /* TupleType */);
+ node.elementTypes = parseBracketedList(19 /* TupleElementTypes */, parseType, 19 /* OpenBracketToken */, 20 /* CloseBracketToken */);
+ return finishNode(node);
+ }
+ function parseParenthesizedType() {
+ var node = createNode(160 /* ParenthesizedType */);
+ parseExpected(17 /* OpenParenToken */);
+ node.type = parseType();
+ parseExpected(18 /* CloseParenToken */);
+ return finishNode(node);
+ }
+ function parseFunctionOrConstructorType(kind) {
+ var node = createNode(kind);
+ if (kind === 153 /* ConstructorType */) {
+ parseExpected(92 /* NewKeyword */);
+ }
+ fillSignature(34 /* EqualsGreaterThanToken */, /*yieldContext*/ false, /*awaitContext*/ false, /*requireCompleteParameterList*/ false, node);
+ return finishNode(node);
+ }
+ function parseKeywordAndNoDot() {
+ var node = parseTokenNode();
+ return token === 21 /* DotToken */ ? undefined : node;
+ }
+ function parseNonArrayType() {
+ switch (token) {
+ case 117 /* AnyKeyword */:
+ case 130 /* StringKeyword */:
+ case 128 /* NumberKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ // If these are followed by a dot, then parse these out as a dotted type reference instead.
+ var node = tryParse(parseKeywordAndNoDot);
+ return node || parseTypeReferenceOrTypePredicate();
+ case 103 /* VoidKeyword */:
+ case 97 /* ThisKeyword */:
+ return parseTokenNode();
+ case 101 /* TypeOfKeyword */:
+ return parseTypeQuery();
+ case 15 /* OpenBraceToken */:
+ return parseTypeLiteral();
+ case 19 /* OpenBracketToken */:
+ return parseTupleType();
+ case 17 /* OpenParenToken */:
+ return parseParenthesizedType();
+ default:
+ return parseTypeReferenceOrTypePredicate();
+ }
+ }
+ function isStartOfType() {
+ switch (token) {
+ case 117 /* AnyKeyword */:
+ case 130 /* StringKeyword */:
+ case 128 /* NumberKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ case 103 /* VoidKeyword */:
+ case 97 /* ThisKeyword */:
+ case 101 /* TypeOfKeyword */:
+ case 15 /* OpenBraceToken */:
+ case 19 /* OpenBracketToken */:
+ case 25 /* LessThanToken */:
+ case 92 /* NewKeyword */:
+ return true;
+ case 17 /* OpenParenToken */:
+ // Only consider '(' the start of a type if followed by ')', '...', an identifier, a modifier,
+ // or something that starts a type. We don't want to consider things like '(1)' a type.
+ return lookAhead(isStartOfParenthesizedOrFunctionType);
+ default:
+ return isIdentifier();
+ }
+ }
+ function isStartOfParenthesizedOrFunctionType() {
+ nextToken();
+ return token === 18 /* CloseParenToken */ || isStartOfParameter() || isStartOfType();
+ }
+ function parseArrayTypeOrHigher() {
+ var type = parseNonArrayType();
+ while (!scanner.hasPrecedingLineBreak() && parseOptional(19 /* OpenBracketToken */)) {
+ parseExpected(20 /* CloseBracketToken */);
+ var node = createNode(156 /* ArrayType */, type.pos);
+ node.elementType = type;
+ type = finishNode(node);
+ }
+ return type;
+ }
+ function parseUnionOrIntersectionType(kind, parseConstituentType, operator) {
+ var type = parseConstituentType();
+ if (token === operator) {
+ var types = [type];
+ types.pos = type.pos;
+ while (parseOptional(operator)) {
+ types.push(parseConstituentType());
+ }
+ types.end = getNodeEnd();
+ var node = createNode(kind, type.pos);
+ node.types = types;
+ type = finishNode(node);
+ }
+ return type;
+ }
+ function parseIntersectionTypeOrHigher() {
+ return parseUnionOrIntersectionType(159 /* IntersectionType */, parseArrayTypeOrHigher, 46 /* AmpersandToken */);
+ }
+ function parseUnionTypeOrHigher() {
+ return parseUnionOrIntersectionType(158 /* UnionType */, parseIntersectionTypeOrHigher, 47 /* BarToken */);
+ }
+ function isStartOfFunctionType() {
+ if (token === 25 /* LessThanToken */) {
+ return true;
+ }
+ return token === 17 /* OpenParenToken */ && lookAhead(isUnambiguouslyStartOfFunctionType);
+ }
+ function isUnambiguouslyStartOfFunctionType() {
+ nextToken();
+ if (token === 18 /* CloseParenToken */ || token === 22 /* DotDotDotToken */) {
+ // ( )
+ // ( ...
+ return true;
+ }
+ if (isIdentifier() || ts.isModifier(token)) {
+ nextToken();
+ if (token === 54 /* ColonToken */ || token === 24 /* CommaToken */ ||
+ token === 53 /* QuestionToken */ || token === 56 /* EqualsToken */ ||
+ isIdentifier() || ts.isModifier(token)) {
+ // ( id :
+ // ( id ,
+ // ( id ?
+ // ( id =
+ // ( modifier id
+ return true;
+ }
+ if (token === 18 /* CloseParenToken */) {
+ nextToken();
+ if (token === 34 /* EqualsGreaterThanToken */) {
+ // ( id ) =>
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ function parseType() {
+ // The rules about 'yield' only apply to actual code/expression contexts. They don't
+ // apply to 'type' contexts. So we disable these parameters here before moving on.
+ return doOutsideOfContext(10 /* TypeExcludesFlags */, parseTypeWorker);
+ }
+ function parseTypeWorker() {
+ if (isStartOfFunctionType()) {
+ return parseFunctionOrConstructorType(152 /* FunctionType */);
+ }
+ if (token === 92 /* NewKeyword */) {
+ return parseFunctionOrConstructorType(153 /* ConstructorType */);
+ }
+ return parseUnionTypeOrHigher();
+ }
+ function parseTypeAnnotation() {
+ return parseOptional(54 /* ColonToken */) ? parseType() : undefined;
+ }
+ // EXPRESSIONS
+ function isStartOfLeftHandSideExpression() {
+ switch (token) {
+ case 97 /* ThisKeyword */:
+ case 95 /* SuperKeyword */:
+ case 93 /* NullKeyword */:
+ case 99 /* TrueKeyword */:
+ case 84 /* FalseKeyword */:
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ case 12 /* TemplateHead */:
+ case 17 /* OpenParenToken */:
+ case 19 /* OpenBracketToken */:
+ case 15 /* OpenBraceToken */:
+ case 87 /* FunctionKeyword */:
+ case 73 /* ClassKeyword */:
+ case 92 /* NewKeyword */:
+ case 39 /* SlashToken */:
+ case 61 /* SlashEqualsToken */:
+ case 69 /* Identifier */:
+ return true;
+ default:
+ return isIdentifier();
+ }
+ }
+ function isStartOfExpression() {
+ if (isStartOfLeftHandSideExpression()) {
+ return true;
+ }
+ switch (token) {
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 50 /* TildeToken */:
+ case 49 /* ExclamationToken */:
+ case 78 /* DeleteKeyword */:
+ case 101 /* TypeOfKeyword */:
+ case 103 /* VoidKeyword */:
+ case 41 /* PlusPlusToken */:
+ case 42 /* MinusMinusToken */:
+ case 25 /* LessThanToken */:
+ case 119 /* AwaitKeyword */:
+ case 114 /* YieldKeyword */:
+ // Yield/await always starts an expression. Either it is an identifier (in which case
+ // it is definitely an expression). Or it's a keyword (either because we're in
+ // a generator or async function, or in strict mode (or both)) and it started a yield or await expression.
+ return true;
+ default:
+ // Error tolerance. If we see the start of some binary operator, we consider
+ // that the start of an expression. That way we'll parse out a missing identifier,
+ // give a good message about an identifier being missing, and then consume the
+ // rest of the binary expression.
+ if (isBinaryOperator()) {
+ return true;
+ }
+ return isIdentifier();
+ }
+ }
+ function isStartOfExpressionStatement() {
+ // As per the grammar, none of '{' or 'function' or 'class' can start an expression statement.
+ return token !== 15 /* OpenBraceToken */ &&
+ token !== 87 /* FunctionKeyword */ &&
+ token !== 73 /* ClassKeyword */ &&
+ token !== 55 /* AtToken */ &&
+ isStartOfExpression();
+ }
+ function allowInAndParseExpression() {
+ return allowInAnd(parseExpression);
+ }
+ function parseExpression() {
+ // Expression[in]:
+ // AssignmentExpression[in]
+ // Expression[in] , AssignmentExpression[in]
+ // clear the decorator context when parsing Expression, as it should be unambiguous when parsing a decorator
+ var saveDecoratorContext = inDecoratorContext();
+ if (saveDecoratorContext) {
+ setDecoratorContext(false);
+ }
+ var expr = parseAssignmentExpressionOrHigher();
+ var operatorToken;
+ while ((operatorToken = parseOptionalToken(24 /* CommaToken */))) {
+ expr = makeBinaryExpression(expr, operatorToken, parseAssignmentExpressionOrHigher());
+ }
+ if (saveDecoratorContext) {
+ setDecoratorContext(true);
+ }
+ return expr;
+ }
+ function parseInitializer(inParameter) {
+ if (token !== 56 /* EqualsToken */) {
+ // It's not uncommon during typing for the user to miss writing the '=' token. Check if
+ // there is no newline after the last token and if we're on an expression. If so, parse
+ // this as an equals-value clause with a missing equals.
+ // NOTE: There are two places where we allow equals-value clauses. The first is in a
+ // variable declarator. The second is with a parameter. For variable declarators
+ // it's more likely that a { would be a allowed (as an object literal). While this
+ // is also allowed for parameters, the risk is that we consume the { as an object
+ // literal when it really will be for the block following the parameter.
+ if (scanner.hasPrecedingLineBreak() || (inParameter && token === 15 /* OpenBraceToken */) || !isStartOfExpression()) {
+ // preceding line break, open brace in a parameter (likely a function body) or current token is not an expression -
+ // do not try to parse initializer
+ return undefined;
+ }
+ }
+ // Initializer[In, Yield] :
+ // = AssignmentExpression[?In, ?Yield]
+ parseExpected(56 /* EqualsToken */);
+ return parseAssignmentExpressionOrHigher();
+ }
+ function parseAssignmentExpressionOrHigher() {
+ // AssignmentExpression[in,yield]:
+ // 1) ConditionalExpression[?in,?yield]
+ // 2) LeftHandSideExpression = AssignmentExpression[?in,?yield]
+ // 3) LeftHandSideExpression AssignmentOperator AssignmentExpression[?in,?yield]
+ // 4) ArrowFunctionExpression[?in,?yield]
+ // 5) [+Yield] YieldExpression[?In]
+ //
+ // Note: for ease of implementation we treat productions '2' and '3' as the same thing.
+ // (i.e. they're both BinaryExpressions with an assignment operator in it).
+ // First, do the simple check if we have a YieldExpression (production '5').
+ if (isYieldExpression()) {
+ return parseYieldExpression();
+ }
+ // Then, check if we have an arrow function (production '4') that starts with a parenthesized
+ // parameter list. If we do, we must *not* recurse for productions 1, 2 or 3. An ArrowFunction is
+ // not a LeftHandSideExpression, nor does it start a ConditionalExpression. So we are done
+ // with AssignmentExpression if we see one.
+ var arrowExpression = tryParseParenthesizedArrowFunctionExpression();
+ if (arrowExpression) {
+ return arrowExpression;
+ }
+ // Now try to see if we're in production '1', '2' or '3'. A conditional expression can
+ // start with a LogicalOrExpression, while the assignment productions can only start with
+ // LeftHandSideExpressions.
+ //
+ // So, first, we try to just parse out a BinaryExpression. If we get something that is a
+ // LeftHandSide or higher, then we can try to parse out the assignment expression part.
+ // Otherwise, we try to parse out the conditional expression bit. We want to allow any
+ // binary expression here, so we pass in the 'lowest' precedence here so that it matches
+ // and consumes anything.
+ var expr = parseBinaryExpressionOrHigher(/*precedence*/ 0);
+ // To avoid a look-ahead, we did not handle the case of an arrow function with a single un-parenthesized
+ // parameter ('x => ...') above. We handle it here by checking if the parsed expression was a single
+ // identifier and the current token is an arrow.
+ if (expr.kind === 69 /* Identifier */ && token === 34 /* EqualsGreaterThanToken */) {
+ return parseSimpleArrowFunctionExpression(expr);
+ }
+ // Now see if we might be in cases '2' or '3'.
+ // If the expression was a LHS expression, and we have an assignment operator, then
+ // we're in '2' or '3'. Consume the assignment and return.
+ //
+ // Note: we call reScanGreaterToken so that we get an appropriately merged token
+ // for cases like > > = becoming >>=
+ if (ts.isLeftHandSideExpression(expr) && ts.isAssignmentOperator(reScanGreaterToken())) {
+ return makeBinaryExpression(expr, parseTokenNode(), parseAssignmentExpressionOrHigher());
+ }
+ // It wasn't an assignment or a lambda. This is a conditional expression:
+ return parseConditionalExpressionRest(expr);
+ }
+ function isYieldExpression() {
+ if (token === 114 /* YieldKeyword */) {
+ // If we have a 'yield' keyword, and htis is a context where yield expressions are
+ // allowed, then definitely parse out a yield expression.
+ if (inYieldContext()) {
+ return true;
+ }
+ // We're in a context where 'yield expr' is not allowed. However, if we can
+ // definitely tell that the user was trying to parse a 'yield expr' and not
+ // just a normal expr that start with a 'yield' identifier, then parse out
+ // a 'yield expr'. We can then report an error later that they are only
+ // allowed in generator expressions.
+ //
+ // for example, if we see 'yield(foo)', then we'll have to treat that as an
+ // invocation expression of something called 'yield'. However, if we have
+ // 'yield foo' then that is not legal as a normal expression, so we can
+ // definitely recognize this as a yield expression.
+ //
+ // for now we just check if the next token is an identifier. More heuristics
+ // can be added here later as necessary. We just need to make sure that we
+ // don't accidently consume something legal.
+ return lookAhead(nextTokenIsIdentifierOrKeywordOrNumberOnSameLine);
+ }
+ return false;
+ }
+ function nextTokenIsIdentifierOnSameLine() {
+ nextToken();
+ return !scanner.hasPrecedingLineBreak() && isIdentifier();
+ }
+ function parseYieldExpression() {
+ var node = createNode(184 /* YieldExpression */);
+ // YieldExpression[In] :
+ // yield
+ // yield [no LineTerminator here] [Lexical goal InputElementRegExp]AssignmentExpression[?In, Yield]
+ // yield [no LineTerminator here] * [Lexical goal InputElementRegExp]AssignmentExpression[?In, Yield]
+ nextToken();
+ if (!scanner.hasPrecedingLineBreak() &&
+ (token === 37 /* AsteriskToken */ || isStartOfExpression())) {
+ node.asteriskToken = parseOptionalToken(37 /* AsteriskToken */);
+ node.expression = parseAssignmentExpressionOrHigher();
+ return finishNode(node);
+ }
+ else {
+ // if the next token is not on the same line as yield. or we don't have an '*' or
+ // the start of an expressin, then this is just a simple "yield" expression.
+ return finishNode(node);
+ }
+ }
+ function parseSimpleArrowFunctionExpression(identifier) {
+ ts.Debug.assert(token === 34 /* EqualsGreaterThanToken */, "parseSimpleArrowFunctionExpression should only have been called if we had a =>");
+ var node = createNode(174 /* ArrowFunction */, identifier.pos);
+ var parameter = createNode(138 /* Parameter */, identifier.pos);
+ parameter.name = identifier;
+ finishNode(parameter);
+ node.parameters = [parameter];
+ node.parameters.pos = parameter.pos;
+ node.parameters.end = parameter.end;
+ node.equalsGreaterThanToken = parseExpectedToken(34 /* EqualsGreaterThanToken */, false, ts.Diagnostics._0_expected, "=>");
+ node.body = parseArrowFunctionExpressionBody(/*isAsync*/ false);
+ return finishNode(node);
+ }
+ function tryParseParenthesizedArrowFunctionExpression() {
+ var triState = isParenthesizedArrowFunctionExpression();
+ if (triState === 0 /* False */) {
+ // It's definitely not a parenthesized arrow function expression.
+ return undefined;
+ }
+ // If we definitely have an arrow function, then we can just parse one, not requiring a
+ // following => or { token. Otherwise, we *might* have an arrow function. Try to parse
+ // it out, but don't allow any ambiguity, and return 'undefined' if this could be an
+ // expression instead.
+ var arrowFunction = triState === 1 /* True */
+ ? parseParenthesizedArrowFunctionExpressionHead(/*allowAmbiguity*/ true)
+ : tryParse(parsePossibleParenthesizedArrowFunctionExpressionHead);
+ if (!arrowFunction) {
+ // Didn't appear to actually be a parenthesized arrow function. Just bail out.
+ return undefined;
+ }
+ var isAsync = !!(arrowFunction.flags & 512 /* Async */);
+ // If we have an arrow, then try to parse the body. Even if not, try to parse if we
+ // have an opening brace, just in case we're in an error state.
+ var lastToken = token;
+ arrowFunction.equalsGreaterThanToken = parseExpectedToken(34 /* EqualsGreaterThanToken */, /*reportAtCurrentPosition*/ false, ts.Diagnostics._0_expected, "=>");
+ arrowFunction.body = (lastToken === 34 /* EqualsGreaterThanToken */ || lastToken === 15 /* OpenBraceToken */)
+ ? parseArrowFunctionExpressionBody(isAsync)
+ : parseIdentifier();
+ return finishNode(arrowFunction);
+ }
+ // True -> We definitely expect a parenthesized arrow function here.
+ // False -> There *cannot* be a parenthesized arrow function here.
+ // Unknown -> There *might* be a parenthesized arrow function here.
+ // Speculatively look ahead to be sure, and rollback if not.
+ function isParenthesizedArrowFunctionExpression() {
+ if (token === 17 /* OpenParenToken */ || token === 25 /* LessThanToken */ || token === 118 /* AsyncKeyword */) {
+ return lookAhead(isParenthesizedArrowFunctionExpressionWorker);
+ }
+ if (token === 34 /* EqualsGreaterThanToken */) {
+ // ERROR RECOVERY TWEAK:
+ // If we see a standalone => try to parse it as an arrow function expression as that's
+ // likely what the user intended to write.
+ return 1 /* True */;
+ }
+ // Definitely not a parenthesized arrow function.
+ return 0 /* False */;
+ }
+ function isParenthesizedArrowFunctionExpressionWorker() {
+ if (token === 118 /* AsyncKeyword */) {
+ nextToken();
+ if (scanner.hasPrecedingLineBreak()) {
+ return 0 /* False */;
+ }
+ if (token !== 17 /* OpenParenToken */ && token !== 25 /* LessThanToken */) {
+ return 0 /* False */;
+ }
+ }
+ var first = token;
+ var second = nextToken();
+ if (first === 17 /* OpenParenToken */) {
+ if (second === 18 /* CloseParenToken */) {
+ // Simple cases: "() =>", "(): ", and "() {".
+ // This is an arrow function with no parameters.
+ // The last one is not actually an arrow function,
+ // but this is probably what the user intended.
+ var third = nextToken();
+ switch (third) {
+ case 34 /* EqualsGreaterThanToken */:
+ case 54 /* ColonToken */:
+ case 15 /* OpenBraceToken */:
+ return 1 /* True */;
+ default:
+ return 0 /* False */;
+ }
+ }
+ // If encounter "([" or "({", this could be the start of a binding pattern.
+ // Examples:
+ // ([ x ]) => { }
+ // ({ x }) => { }
+ // ([ x ])
+ // ({ x })
+ if (second === 19 /* OpenBracketToken */ || second === 15 /* OpenBraceToken */) {
+ return 2 /* Unknown */;
+ }
+ // Simple case: "(..."
+ // This is an arrow function with a rest parameter.
+ if (second === 22 /* DotDotDotToken */) {
+ return 1 /* True */;
+ }
+ // If we had "(" followed by something that's not an identifier,
+ // then this definitely doesn't look like a lambda.
+ // Note: we could be a little more lenient and allow
+ // "(public" or "(private". These would not ever actually be allowed,
+ // but we could provide a good error message instead of bailing out.
+ if (!isIdentifier()) {
+ return 0 /* False */;
+ }
+ // If we have something like "(a:", then we must have a
+ // type-annotated parameter in an arrow function expression.
+ if (nextToken() === 54 /* ColonToken */) {
+ return 1 /* True */;
+ }
+ // This *could* be a parenthesized arrow function.
+ // Return Unknown to let the caller know.
+ return 2 /* Unknown */;
+ }
+ else {
+ ts.Debug.assert(first === 25 /* LessThanToken */);
+ // If we have "<" not followed by an identifier,
+ // then this definitely is not an arrow function.
+ if (!isIdentifier()) {
+ return 0 /* False */;
+ }
+ // JSX overrides
+ if (sourceFile.languageVariant === 1 /* JSX */) {
+ var isArrowFunctionInJsx = lookAhead(function () {
+ var third = nextToken();
+ if (third === 83 /* ExtendsKeyword */) {
+ var fourth = nextToken();
+ switch (fourth) {
+ case 56 /* EqualsToken */:
+ case 27 /* GreaterThanToken */:
+ return false;
+ default:
+ return true;
+ }
+ }
+ else if (third === 24 /* CommaToken */) {
+ return true;
+ }
+ return false;
+ });
+ if (isArrowFunctionInJsx) {
+ return 1 /* True */;
+ }
+ return 0 /* False */;
+ }
+ // This *could* be a parenthesized arrow function.
+ return 2 /* Unknown */;
+ }
+ }
+ function parsePossibleParenthesizedArrowFunctionExpressionHead() {
+ return parseParenthesizedArrowFunctionExpressionHead(/*allowAmbiguity*/ false);
+ }
+ function parseParenthesizedArrowFunctionExpressionHead(allowAmbiguity) {
+ var node = createNode(174 /* ArrowFunction */);
+ setModifiers(node, parseModifiersForArrowFunction());
+ var isAsync = !!(node.flags & 512 /* Async */);
+ // Arrow functions are never generators.
+ //
+ // If we're speculatively parsing a signature for a parenthesized arrow function, then
+ // we have to have a complete parameter list. Otherwise we might see something like
+ // a => (b => c)
+ // And think that "(b =>" was actually a parenthesized arrow function with a missing
+ // close paren.
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ false, /*awaitContext*/ isAsync, /*requireCompleteParameterList*/ !allowAmbiguity, node);
+ // If we couldn't get parameters, we definitely could not parse out an arrow function.
+ if (!node.parameters) {
+ return undefined;
+ }
+ // Parsing a signature isn't enough.
+ // Parenthesized arrow signatures often look like other valid expressions.
+ // For instance:
+ // - "(x = 10)" is an assignment expression parsed as a signature with a default parameter value.
+ // - "(x,y)" is a comma expression parsed as a signature with two parameters.
+ // - "a ? (b): c" will have "(b):" parsed as a signature with a return type annotation.
+ //
+ // So we need just a bit of lookahead to ensure that it can only be a signature.
+ if (!allowAmbiguity && token !== 34 /* EqualsGreaterThanToken */ && token !== 15 /* OpenBraceToken */) {
+ // Returning undefined here will cause our caller to rewind to where we started from.
+ return undefined;
+ }
+ return node;
+ }
+ function parseArrowFunctionExpressionBody(isAsync) {
+ if (token === 15 /* OpenBraceToken */) {
+ return parseFunctionBlock(/*allowYield*/ false, /*allowAwait*/ isAsync, /*ignoreMissingOpenBrace*/ false);
+ }
+ if (token !== 23 /* SemicolonToken */ &&
+ token !== 87 /* FunctionKeyword */ &&
+ token !== 73 /* ClassKeyword */ &&
+ isStartOfStatement() &&
+ !isStartOfExpressionStatement()) {
+ // Check if we got a plain statement (i.e. no expression-statements, no function/class expressions/declarations)
+ //
+ // Here we try to recover from a potential error situation in the case where the
+ // user meant to supply a block. For example, if the user wrote:
+ //
+ // a =>
+ // let v = 0;
+ // }
+ //
+ // they may be missing an open brace. Check to see if that's the case so we can
+ // try to recover better. If we don't do this, then the next close curly we see may end
+ // up preemptively closing the containing construct.
+ //
+ // Note: even when 'ignoreMissingOpenBrace' is passed as true, parseBody will still error.
+ return parseFunctionBlock(/*allowYield*/ false, /*allowAwait*/ isAsync, /*ignoreMissingOpenBrace*/ true);
+ }
+ return isAsync
+ ? doInAwaitContext(parseAssignmentExpressionOrHigher)
+ : doOutsideOfAwaitContext(parseAssignmentExpressionOrHigher);
+ }
+ function parseConditionalExpressionRest(leftOperand) {
+ // Note: we are passed in an expression which was produced from parseBinaryExpressionOrHigher.
+ var questionToken = parseOptionalToken(53 /* QuestionToken */);
+ if (!questionToken) {
+ return leftOperand;
+ }
+ // Note: we explicitly 'allowIn' in the whenTrue part of the condition expression, and
+ // we do not that for the 'whenFalse' part.
+ var node = createNode(182 /* ConditionalExpression */, leftOperand.pos);
+ node.condition = leftOperand;
+ node.questionToken = questionToken;
+ node.whenTrue = doOutsideOfContext(disallowInAndDecoratorContext, parseAssignmentExpressionOrHigher);
+ node.colonToken = parseExpectedToken(54 /* ColonToken */, /*reportAtCurrentPosition*/ false, ts.Diagnostics._0_expected, ts.tokenToString(54 /* ColonToken */));
+ node.whenFalse = parseAssignmentExpressionOrHigher();
+ return finishNode(node);
+ }
+ function parseBinaryExpressionOrHigher(precedence) {
+ var leftOperand = parseUnaryExpressionOrHigher();
+ return parseBinaryExpressionRest(precedence, leftOperand);
+ }
+ function isInOrOfKeyword(t) {
+ return t === 90 /* InKeyword */ || t === 134 /* OfKeyword */;
+ }
+ function parseBinaryExpressionRest(precedence, leftOperand) {
+ while (true) {
+ // We either have a binary operator here, or we're finished. We call
+ // reScanGreaterToken so that we merge token sequences like > and = into >=
+ reScanGreaterToken();
+ var newPrecedence = getBinaryOperatorPrecedence();
+ // Check the precedence to see if we should "take" this operator
+ // - For left associative operator (all operator but **), consume the operator,
+ // recursively call the function below, and parse binaryExpression as a rightOperand
+ // of the caller if the new precendence of the operator is greater then or equal to the current precendence.
+ // For example:
+ // a - b - c;
+ // ^token; leftOperand = b. Return b to the caller as a rightOperand
+ // a * b - c
+ // ^token; leftOperand = b. Return b to the caller as a rightOperand
+ // a - b * c;
+ // ^token; leftOperand = b. Return b * c to the caller as a rightOperand
+ // - For right associative operator (**), consume the operator, recursively call the function
+ // and parse binaryExpression as a rightOperand of the caller if the new precendence of
+ // the operator is strictly grater than the current precendence
+ // For example:
+ // a ** b ** c;
+ // ^^token; leftOperand = b. Return b ** c to the caller as a rightOperand
+ // a - b ** c;
+ // ^^token; leftOperand = b. Return b ** c to the caller as a rightOperand
+ // a ** b - c
+ // ^token; leftOperand = b. Return b to the caller as a rightOperand
+ var consumeCurrentOperator = token === 38 /* AsteriskAsteriskToken */ ?
+ newPrecedence >= precedence :
+ newPrecedence > precedence;
+ if (!consumeCurrentOperator) {
+ break;
+ }
+ if (token === 90 /* InKeyword */ && inDisallowInContext()) {
+ break;
+ }
+ if (token === 116 /* AsKeyword */) {
+ // Make sure we *do* perform ASI for constructs like this:
+ // var x = foo
+ // as (Bar)
+ // This should be parsed as an initialized variable, followed
+ // by a function call to 'as' with the argument 'Bar'
+ if (scanner.hasPrecedingLineBreak()) {
+ break;
+ }
+ else {
+ nextToken();
+ leftOperand = makeAsExpression(leftOperand, parseType());
+ }
+ }
+ else {
+ leftOperand = makeBinaryExpression(leftOperand, parseTokenNode(), parseBinaryExpressionOrHigher(newPrecedence));
+ }
+ }
+ return leftOperand;
+ }
+ function isBinaryOperator() {
+ if (inDisallowInContext() && token === 90 /* InKeyword */) {
+ return false;
+ }
+ return getBinaryOperatorPrecedence() > 0;
+ }
+ function getBinaryOperatorPrecedence() {
+ switch (token) {
+ case 52 /* BarBarToken */:
+ return 1;
+ case 51 /* AmpersandAmpersandToken */:
+ return 2;
+ case 47 /* BarToken */:
+ return 3;
+ case 48 /* CaretToken */:
+ return 4;
+ case 46 /* AmpersandToken */:
+ return 5;
+ case 30 /* EqualsEqualsToken */:
+ case 31 /* ExclamationEqualsToken */:
+ case 32 /* EqualsEqualsEqualsToken */:
+ case 33 /* ExclamationEqualsEqualsToken */:
+ return 6;
+ case 25 /* LessThanToken */:
+ case 27 /* GreaterThanToken */:
+ case 28 /* LessThanEqualsToken */:
+ case 29 /* GreaterThanEqualsToken */:
+ case 91 /* InstanceOfKeyword */:
+ case 90 /* InKeyword */:
+ case 116 /* AsKeyword */:
+ return 7;
+ case 43 /* LessThanLessThanToken */:
+ case 44 /* GreaterThanGreaterThanToken */:
+ case 45 /* GreaterThanGreaterThanGreaterThanToken */:
+ return 8;
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ return 9;
+ case 37 /* AsteriskToken */:
+ case 39 /* SlashToken */:
+ case 40 /* PercentToken */:
+ return 10;
+ case 38 /* AsteriskAsteriskToken */:
+ return 11;
+ }
+ // -1 is lower than all other precedences. Returning it will cause binary expression
+ // parsing to stop.
+ return -1;
+ }
+ function makeBinaryExpression(left, operatorToken, right) {
+ var node = createNode(181 /* BinaryExpression */, left.pos);
+ node.left = left;
+ node.operatorToken = operatorToken;
+ node.right = right;
+ return finishNode(node);
+ }
+ function makeAsExpression(left, right) {
+ var node = createNode(189 /* AsExpression */, left.pos);
+ node.expression = left;
+ node.type = right;
+ return finishNode(node);
+ }
+ function parsePrefixUnaryExpression() {
+ var node = createNode(179 /* PrefixUnaryExpression */);
+ node.operator = token;
+ nextToken();
+ node.operand = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ function parseDeleteExpression() {
+ var node = createNode(175 /* DeleteExpression */);
+ nextToken();
+ node.expression = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ function parseTypeOfExpression() {
+ var node = createNode(176 /* TypeOfExpression */);
+ nextToken();
+ node.expression = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ function parseVoidExpression() {
+ var node = createNode(177 /* VoidExpression */);
+ nextToken();
+ node.expression = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ function isAwaitExpression() {
+ if (token === 119 /* AwaitKeyword */) {
+ if (inAwaitContext()) {
+ return true;
+ }
+ // here we are using similar heuristics as 'isYieldExpression'
+ return lookAhead(nextTokenIsIdentifierOnSameLine);
+ }
+ return false;
+ }
+ function parseAwaitExpression() {
+ var node = createNode(178 /* AwaitExpression */);
+ nextToken();
+ node.expression = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ /**
+ * Parse ES7 unary expression and await expression
+ *
+ * ES7 UnaryExpression:
+ * 1) SimpleUnaryExpression[?yield]
+ * 2) IncrementExpression[?yield] ** UnaryExpression[?yield]
+ */
+ function parseUnaryExpressionOrHigher() {
+ if (isAwaitExpression()) {
+ return parseAwaitExpression();
+ }
+ if (isIncrementExpression()) {
+ var incrementExpression = parseIncrementExpression();
+ return token === 38 /* AsteriskAsteriskToken */ ?
+ parseBinaryExpressionRest(getBinaryOperatorPrecedence(), incrementExpression) :
+ incrementExpression;
+ }
+ var unaryOperator = token;
+ var simpleUnaryExpression = parseSimpleUnaryExpression();
+ if (token === 38 /* AsteriskAsteriskToken */) {
+ var diagnostic;
+ var start = ts.skipTrivia(sourceText, simpleUnaryExpression.pos);
+ if (simpleUnaryExpression.kind === 171 /* TypeAssertionExpression */) {
+ parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses);
+ }
+ else {
+ parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses, ts.tokenToString(unaryOperator));
+ }
+ }
+ return simpleUnaryExpression;
+ }
+ /**
+ * Parse ES7 simple-unary expression or higher:
+ *
+ * ES7 SimpleUnaryExpression:
+ * 1) IncrementExpression[?yield]
+ * 2) delete UnaryExpression[?yield]
+ * 3) void UnaryExpression[?yield]
+ * 4) typeof UnaryExpression[?yield]
+ * 5) + UnaryExpression[?yield]
+ * 6) - UnaryExpression[?yield]
+ * 7) ~ UnaryExpression[?yield]
+ * 8) ! UnaryExpression[?yield]
+ */
+ function parseSimpleUnaryExpression() {
+ switch (token) {
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 50 /* TildeToken */:
+ case 49 /* ExclamationToken */:
+ return parsePrefixUnaryExpression();
+ case 78 /* DeleteKeyword */:
+ return parseDeleteExpression();
+ case 101 /* TypeOfKeyword */:
+ return parseTypeOfExpression();
+ case 103 /* VoidKeyword */:
+ return parseVoidExpression();
+ case 25 /* LessThanToken */:
+ // This is modified UnaryExpression grammar in TypeScript
+ // UnaryExpression (modified):
+ // < type > UnaryExpression
+ return parseTypeAssertion();
+ default:
+ return parseIncrementExpression();
+ }
+ }
+ /**
+ * Check if the current token can possibly be an ES7 increment expression.
+ *
+ * ES7 IncrementExpression:
+ * LeftHandSideExpression[?Yield]
+ * LeftHandSideExpression[?Yield][no LineTerminator here]++
+ * LeftHandSideExpression[?Yield][no LineTerminator here]--
+ * ++LeftHandSideExpression[?Yield]
+ * --LeftHandSideExpression[?Yield]
+ */
+ function isIncrementExpression() {
+ // This function is called inside parseUnaryExpression to decide
+ // whether to call parseSimpleUnaryExpression or call parseIncrmentExpression directly
+ switch (token) {
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 50 /* TildeToken */:
+ case 49 /* ExclamationToken */:
+ case 78 /* DeleteKeyword */:
+ case 101 /* TypeOfKeyword */:
+ case 103 /* VoidKeyword */:
+ return false;
+ case 25 /* LessThanToken */:
+ // If we are not in JSX context, we are parsing TypeAssertion which is an UnaryExpression
+ if (sourceFile.languageVariant !== 1 /* JSX */) {
+ return false;
+ }
+ // We are in JSX context and the token is part of JSXElement.
+ // Fall through
+ default:
+ return true;
+ }
+ }
+ /**
+ * Parse ES7 IncrementExpression. IncrementExpression is used instead of ES6's PostFixExpression.
+ *
+ * ES7 IncrementExpression[yield]:
+ * 1) LeftHandSideExpression[?yield]
+ * 2) LeftHandSideExpression[?yield] [[no LineTerminator here]]++
+ * 3) LeftHandSideExpression[?yield] [[no LineTerminator here]]--
+ * 4) ++LeftHandSideExpression[?yield]
+ * 5) --LeftHandSideExpression[?yield]
+ * In TypeScript (2), (3) are parsed as PostfixUnaryExpression. (4), (5) are parsed as PrefixUnaryExpression
+ */
+ function parseIncrementExpression() {
+ if (token === 41 /* PlusPlusToken */ || token === 42 /* MinusMinusToken */) {
+ var node = createNode(179 /* PrefixUnaryExpression */);
+ node.operator = token;
+ nextToken();
+ node.operand = parseLeftHandSideExpressionOrHigher();
+ return finishNode(node);
+ }
+ else if (sourceFile.languageVariant === 1 /* JSX */ && token === 25 /* LessThanToken */ && lookAhead(nextTokenIsIdentifierOrKeyword)) {
+ // JSXElement is part of primaryExpression
+ return parseJsxElementOrSelfClosingElement(/*inExpressionContext*/ true);
+ }
+ var expression = parseLeftHandSideExpressionOrHigher();
+ ts.Debug.assert(ts.isLeftHandSideExpression(expression));
+ if ((token === 41 /* PlusPlusToken */ || token === 42 /* MinusMinusToken */) && !scanner.hasPrecedingLineBreak()) {
+ var node = createNode(180 /* PostfixUnaryExpression */, expression.pos);
+ node.operand = expression;
+ node.operator = token;
+ nextToken();
+ return finishNode(node);
+ }
+ return expression;
+ }
+ function parseLeftHandSideExpressionOrHigher() {
+ // Original Ecma:
+ // LeftHandSideExpression: See 11.2
+ // NewExpression
+ // CallExpression
+ //
+ // Our simplification:
+ //
+ // LeftHandSideExpression: See 11.2
+ // MemberExpression
+ // CallExpression
+ //
+ // See comment in parseMemberExpressionOrHigher on how we replaced NewExpression with
+ // MemberExpression to make our lives easier.
+ //
+ // to best understand the below code, it's important to see how CallExpression expands
+ // out into its own productions:
+ //
+ // CallExpression:
+ // MemberExpression Arguments
+ // CallExpression Arguments
+ // CallExpression[Expression]
+ // CallExpression.IdentifierName
+ // super ( ArgumentListopt )
+ // super.IdentifierName
+ //
+ // Because of the recursion in these calls, we need to bottom out first. There are two
+ // bottom out states we can run into. Either we see 'super' which must start either of
+ // the last two CallExpression productions. Or we have a MemberExpression which either
+ // completes the LeftHandSideExpression, or starts the beginning of the first four
+ // CallExpression productions.
+ var expression = token === 95 /* SuperKeyword */
+ ? parseSuperExpression()
+ : parseMemberExpressionOrHigher();
+ // Now, we *may* be complete. However, we might have consumed the start of a
+ // CallExpression. As such, we need to consume the rest of it here to be complete.
+ return parseCallExpressionRest(expression);
+ }
+ function parseMemberExpressionOrHigher() {
+ // Note: to make our lives simpler, we decompose the the NewExpression productions and
+ // place ObjectCreationExpression and FunctionExpression into PrimaryExpression.
+ // like so:
+ //
+ // PrimaryExpression : See 11.1
+ // this
+ // Identifier
+ // Literal
+ // ArrayLiteral
+ // ObjectLiteral
+ // (Expression)
+ // FunctionExpression
+ // new MemberExpression Arguments?
+ //
+ // MemberExpression : See 11.2
+ // PrimaryExpression
+ // MemberExpression[Expression]
+ // MemberExpression.IdentifierName
+ //
+ // CallExpression : See 11.2
+ // MemberExpression
+ // CallExpression Arguments
+ // CallExpression[Expression]
+ // CallExpression.IdentifierName
+ //
+ // Technically this is ambiguous. i.e. CallExpression defines:
+ //
+ // CallExpression:
+ // CallExpression Arguments
+ //
+ // If you see: "new Foo()"
+ //
+ // Then that could be treated as a single ObjectCreationExpression, or it could be
+ // treated as the invocation of "new Foo". We disambiguate that in code (to match
+ // the original grammar) by making sure that if we see an ObjectCreationExpression
+ // we always consume arguments if they are there. So we treat "new Foo()" as an
+ // object creation only, and not at all as an invocation) Another way to think
+ // about this is that for every "new" that we see, we will consume an argument list if
+ // it is there as part of the *associated* object creation node. Any additional
+ // argument lists we see, will become invocation expressions.
+ //
+ // Because there are no other places in the grammar now that refer to FunctionExpression
+ // or ObjectCreationExpression, it is safe to push down into the PrimaryExpression
+ // production.
+ //
+ // Because CallExpression and MemberExpression are left recursive, we need to bottom out
+ // of the recursion immediately. So we parse out a primary expression to start with.
+ var expression = parsePrimaryExpression();
+ return parseMemberExpressionRest(expression);
+ }
+ function parseSuperExpression() {
+ var expression = parseTokenNode();
+ if (token === 17 /* OpenParenToken */ || token === 21 /* DotToken */ || token === 19 /* OpenBracketToken */) {
+ return expression;
+ }
+ // If we have seen "super" it must be followed by '(' or '.'.
+ // If it wasn't then just try to parse out a '.' and report an error.
+ var node = createNode(166 /* PropertyAccessExpression */, expression.pos);
+ node.expression = expression;
+ node.dotToken = parseExpectedToken(21 /* DotToken */, /*reportAtCurrentPosition*/ false, ts.Diagnostics.super_must_be_followed_by_an_argument_list_or_member_access);
+ node.name = parseRightSideOfDot(/*allowIdentifierNames*/ true);
+ return finishNode(node);
+ }
+ function parseJsxElementOrSelfClosingElement(inExpressionContext) {
+ var opening = parseJsxOpeningOrSelfClosingElement(inExpressionContext);
+ if (opening.kind === 235 /* JsxOpeningElement */) {
+ var node = createNode(233 /* JsxElement */, opening.pos);
+ node.openingElement = opening;
+ node.children = parseJsxChildren(node.openingElement.tagName);
+ node.closingElement = parseJsxClosingElement(inExpressionContext);
+ return finishNode(node);
+ }
+ else {
+ ts.Debug.assert(opening.kind === 234 /* JsxSelfClosingElement */);
+ // Nothing else to do for self-closing elements
+ return opening;
+ }
+ }
+ function parseJsxText() {
+ var node = createNode(236 /* JsxText */, scanner.getStartPos());
+ token = scanner.scanJsxToken();
+ return finishNode(node);
+ }
+ function parseJsxChild() {
+ switch (token) {
+ case 236 /* JsxText */:
+ return parseJsxText();
+ case 15 /* OpenBraceToken */:
+ return parseJsxExpression(/*inExpressionContext*/ false);
+ case 25 /* LessThanToken */:
+ return parseJsxElementOrSelfClosingElement(/*inExpressionContext*/ false);
+ }
+ ts.Debug.fail("Unknown JSX child kind " + token);
+ }
+ function parseJsxChildren(openingTagName) {
+ var result = [];
+ result.pos = scanner.getStartPos();
+ var saveParsingContext = parsingContext;
+ parsingContext |= 1 << 14 /* JsxChildren */;
+ while (true) {
+ token = scanner.reScanJsxToken();
+ if (token === 26 /* LessThanSlashToken */) {
+ break;
+ }
+ else if (token === 1 /* EndOfFileToken */) {
+ parseErrorAtCurrentToken(ts.Diagnostics.Expected_corresponding_JSX_closing_tag_for_0, ts.getTextOfNodeFromSourceText(sourceText, openingTagName));
+ break;
+ }
+ result.push(parseJsxChild());
+ }
+ result.end = scanner.getTokenPos();
+ parsingContext = saveParsingContext;
+ return result;
+ }
+ function parseJsxOpeningOrSelfClosingElement(inExpressionContext) {
+ var fullStart = scanner.getStartPos();
+ parseExpected(25 /* LessThanToken */);
+ var tagName = parseJsxElementName();
+ var attributes = parseList(13 /* JsxAttributes */, parseJsxAttribute);
+ var node;
+ if (token === 27 /* GreaterThanToken */) {
+ // Closing tag, so scan the immediately-following text with the JSX scanning instead
+ // of regular scanning to avoid treating illegal characters (e.g. '#') as immediate
+ // scanning errors
+ node = createNode(235 /* JsxOpeningElement */, fullStart);
+ scanJsxText();
+ }
+ else {
+ parseExpected(39 /* SlashToken */);
+ if (inExpressionContext) {
+ parseExpected(27 /* GreaterThanToken */);
+ }
+ else {
+ parseExpected(27 /* GreaterThanToken */, /*diagnostic*/ undefined, /*advance*/ false);
+ scanJsxText();
+ }
+ node = createNode(234 /* JsxSelfClosingElement */, fullStart);
+ }
+ node.tagName = tagName;
+ node.attributes = attributes;
+ return finishNode(node);
+ }
+ function parseJsxElementName() {
+ scanJsxIdentifier();
+ var elementName = parseIdentifierName();
+ while (parseOptional(21 /* DotToken */)) {
+ scanJsxIdentifier();
+ var node = createNode(135 /* QualifiedName */, elementName.pos);
+ node.left = elementName;
+ node.right = parseIdentifierName();
+ elementName = finishNode(node);
+ }
+ return elementName;
+ }
+ function parseJsxExpression(inExpressionContext) {
+ var node = createNode(240 /* JsxExpression */);
+ parseExpected(15 /* OpenBraceToken */);
+ if (token !== 16 /* CloseBraceToken */) {
+ node.expression = parseExpression();
+ }
+ if (inExpressionContext) {
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ parseExpected(16 /* CloseBraceToken */, /*message*/ undefined, /*advance*/ false);
+ scanJsxText();
+ }
+ return finishNode(node);
+ }
+ function parseJsxAttribute() {
+ if (token === 15 /* OpenBraceToken */) {
+ return parseJsxSpreadAttribute();
+ }
+ scanJsxIdentifier();
+ var node = createNode(238 /* JsxAttribute */);
+ node.name = parseIdentifierName();
+ if (parseOptional(56 /* EqualsToken */)) {
+ switch (token) {
+ case 9 /* StringLiteral */:
+ node.initializer = parseLiteralNode();
+ break;
+ default:
+ node.initializer = parseJsxExpression(/*inExpressionContext*/ true);
+ break;
+ }
+ }
+ return finishNode(node);
+ }
+ function parseJsxSpreadAttribute() {
+ var node = createNode(239 /* JsxSpreadAttribute */);
+ parseExpected(15 /* OpenBraceToken */);
+ parseExpected(22 /* DotDotDotToken */);
+ node.expression = parseExpression();
+ parseExpected(16 /* CloseBraceToken */);
+ return finishNode(node);
+ }
+ function parseJsxClosingElement(inExpressionContext) {
+ var node = createNode(237 /* JsxClosingElement */);
+ parseExpected(26 /* LessThanSlashToken */);
+ node.tagName = parseJsxElementName();
+ if (inExpressionContext) {
+ parseExpected(27 /* GreaterThanToken */);
+ }
+ else {
+ parseExpected(27 /* GreaterThanToken */, /*diagnostic*/ undefined, /*advance*/ false);
+ scanJsxText();
+ }
+ return finishNode(node);
+ }
+ function parseTypeAssertion() {
+ var node = createNode(171 /* TypeAssertionExpression */);
+ parseExpected(25 /* LessThanToken */);
+ node.type = parseType();
+ parseExpected(27 /* GreaterThanToken */);
+ node.expression = parseSimpleUnaryExpression();
+ return finishNode(node);
+ }
+ function parseMemberExpressionRest(expression) {
+ while (true) {
+ var dotToken = parseOptionalToken(21 /* DotToken */);
+ if (dotToken) {
+ var propertyAccess = createNode(166 /* PropertyAccessExpression */, expression.pos);
+ propertyAccess.expression = expression;
+ propertyAccess.dotToken = dotToken;
+ propertyAccess.name = parseRightSideOfDot(/*allowIdentifierNames*/ true);
+ expression = finishNode(propertyAccess);
+ continue;
+ }
+ // when in the [Decorator] context, we do not parse ElementAccess as it could be part of a ComputedPropertyName
+ if (!inDecoratorContext() && parseOptional(19 /* OpenBracketToken */)) {
+ var indexedAccess = createNode(167 /* ElementAccessExpression */, expression.pos);
+ indexedAccess.expression = expression;
+ // It's not uncommon for a user to write: "new Type[]".
+ // Check for that common pattern and report a better error message.
+ if (token !== 20 /* CloseBracketToken */) {
+ indexedAccess.argumentExpression = allowInAnd(parseExpression);
+ if (indexedAccess.argumentExpression.kind === 9 /* StringLiteral */ || indexedAccess.argumentExpression.kind === 8 /* NumericLiteral */) {
+ var literal = indexedAccess.argumentExpression;
+ literal.text = internIdentifier(literal.text);
+ }
+ }
+ parseExpected(20 /* CloseBracketToken */);
+ expression = finishNode(indexedAccess);
+ continue;
+ }
+ if (token === 11 /* NoSubstitutionTemplateLiteral */ || token === 12 /* TemplateHead */) {
+ var tagExpression = createNode(170 /* TaggedTemplateExpression */, expression.pos);
+ tagExpression.tag = expression;
+ tagExpression.template = token === 11 /* NoSubstitutionTemplateLiteral */
+ ? parseLiteralNode()
+ : parseTemplateExpression();
+ expression = finishNode(tagExpression);
+ continue;
+ }
+ return expression;
+ }
+ }
+ function parseCallExpressionRest(expression) {
+ while (true) {
+ expression = parseMemberExpressionRest(expression);
+ if (token === 25 /* LessThanToken */) {
+ // See if this is the start of a generic invocation. If so, consume it and
+ // keep checking for postfix expressions. Otherwise, it's just a '<' that's
+ // part of an arithmetic expression. Break out so we consume it higher in the
+ // stack.
+ var typeArguments = tryParse(parseTypeArgumentsInExpression);
+ if (!typeArguments) {
+ return expression;
+ }
+ var callExpr = createNode(168 /* CallExpression */, expression.pos);
+ callExpr.expression = expression;
+ callExpr.typeArguments = typeArguments;
+ callExpr.arguments = parseArgumentList();
+ expression = finishNode(callExpr);
+ continue;
+ }
+ else if (token === 17 /* OpenParenToken */) {
+ var callExpr = createNode(168 /* CallExpression */, expression.pos);
+ callExpr.expression = expression;
+ callExpr.arguments = parseArgumentList();
+ expression = finishNode(callExpr);
+ continue;
+ }
+ return expression;
+ }
+ }
+ function parseArgumentList() {
+ parseExpected(17 /* OpenParenToken */);
+ var result = parseDelimitedList(11 /* ArgumentExpressions */, parseArgumentExpression);
+ parseExpected(18 /* CloseParenToken */);
+ return result;
+ }
+ function parseTypeArgumentsInExpression() {
+ if (!parseOptional(25 /* LessThanToken */)) {
+ return undefined;
+ }
+ var typeArguments = parseDelimitedList(18 /* TypeArguments */, parseType);
+ if (!parseExpected(27 /* GreaterThanToken */)) {
+ // If it doesn't have the closing > then it's definitely not an type argument list.
+ return undefined;
+ }
+ // If we have a '<', then only parse this as a arugment list if the type arguments
+ // are complete and we have an open paren. if we don't, rewind and return nothing.
+ return typeArguments && canFollowTypeArgumentsInExpression()
+ ? typeArguments
+ : undefined;
+ }
+ function canFollowTypeArgumentsInExpression() {
+ switch (token) {
+ case 17 /* OpenParenToken */: // foo<x>(
+ // this case are the only case where this token can legally follow a type argument
+ // list. So we definitely want to treat this as a type arg list.
+ case 21 /* DotToken */: // foo<x>.
+ case 18 /* CloseParenToken */: // foo<x>)
+ case 20 /* CloseBracketToken */: // foo<x>]
+ case 54 /* ColonToken */: // foo<x>:
+ case 23 /* SemicolonToken */: // foo<x>;
+ case 53 /* QuestionToken */: // foo<x>?
+ case 30 /* EqualsEqualsToken */: // foo<x> ==
+ case 32 /* EqualsEqualsEqualsToken */: // foo<x> ===
+ case 31 /* ExclamationEqualsToken */: // foo<x> !=
+ case 33 /* ExclamationEqualsEqualsToken */: // foo<x> !==
+ case 51 /* AmpersandAmpersandToken */: // foo<x> &&
+ case 52 /* BarBarToken */: // foo<x> ||
+ case 48 /* CaretToken */: // foo<x> ^
+ case 46 /* AmpersandToken */: // foo<x> &
+ case 47 /* BarToken */: // foo<x> |
+ case 16 /* CloseBraceToken */: // foo<x> }
+ case 1 /* EndOfFileToken */:
+ // these cases can't legally follow a type arg list. However, they're not legal
+ // expressions either. The user is probably in the middle of a generic type. So
+ // treat it as such.
+ return true;
+ case 24 /* CommaToken */: // foo<x>,
+ case 15 /* OpenBraceToken */: // foo<x> {
+ // We don't want to treat these as type arguments. Otherwise we'll parse this
+ // as an invocation expression. Instead, we want to parse out the expression
+ // in isolation from the type arguments.
+ default:
+ // Anything else treat as an expression.
+ return false;
+ }
+ }
+ function parsePrimaryExpression() {
+ switch (token) {
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ return parseLiteralNode();
+ case 97 /* ThisKeyword */:
+ case 95 /* SuperKeyword */:
+ case 93 /* NullKeyword */:
+ case 99 /* TrueKeyword */:
+ case 84 /* FalseKeyword */:
+ return parseTokenNode();
+ case 17 /* OpenParenToken */:
+ return parseParenthesizedExpression();
+ case 19 /* OpenBracketToken */:
+ return parseArrayLiteralExpression();
+ case 15 /* OpenBraceToken */:
+ return parseObjectLiteralExpression();
+ case 118 /* AsyncKeyword */:
+ // Async arrow functions are parsed earlier in parseAssignmentExpressionOrHigher.
+ // If we encounter `async [no LineTerminator here] function` then this is an async
+ // function; otherwise, its an identifier.
+ if (!lookAhead(nextTokenIsFunctionKeywordOnSameLine)) {
+ break;
+ }
+ return parseFunctionExpression();
+ case 73 /* ClassKeyword */:
+ return parseClassExpression();
+ case 87 /* FunctionKeyword */:
+ return parseFunctionExpression();
+ case 92 /* NewKeyword */:
+ return parseNewExpression();
+ case 39 /* SlashToken */:
+ case 61 /* SlashEqualsToken */:
+ if (reScanSlashToken() === 10 /* RegularExpressionLiteral */) {
+ return parseLiteralNode();
+ }
+ break;
+ case 12 /* TemplateHead */:
+ return parseTemplateExpression();
+ }
+ return parseIdentifier(ts.Diagnostics.Expression_expected);
+ }
+ function parseParenthesizedExpression() {
+ var node = createNode(172 /* ParenthesizedExpression */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ return finishNode(node);
+ }
+ function parseSpreadElement() {
+ var node = createNode(185 /* SpreadElementExpression */);
+ parseExpected(22 /* DotDotDotToken */);
+ node.expression = parseAssignmentExpressionOrHigher();
+ return finishNode(node);
+ }
+ function parseArgumentOrArrayLiteralElement() {
+ return token === 22 /* DotDotDotToken */ ? parseSpreadElement() :
+ token === 24 /* CommaToken */ ? createNode(187 /* OmittedExpression */) :
+ parseAssignmentExpressionOrHigher();
+ }
+ function parseArgumentExpression() {
+ return doOutsideOfContext(disallowInAndDecoratorContext, parseArgumentOrArrayLiteralElement);
+ }
+ function parseArrayLiteralExpression() {
+ var node = createNode(164 /* ArrayLiteralExpression */);
+ parseExpected(19 /* OpenBracketToken */);
+ if (scanner.hasPrecedingLineBreak())
+ node.flags |= 2048 /* MultiLine */;
+ node.elements = parseDelimitedList(15 /* ArrayLiteralMembers */, parseArgumentOrArrayLiteralElement);
+ parseExpected(20 /* CloseBracketToken */);
+ return finishNode(node);
+ }
+ function tryParseAccessorDeclaration(fullStart, decorators, modifiers) {
+ if (parseContextualModifier(123 /* GetKeyword */)) {
+ return parseAccessorDeclaration(145 /* GetAccessor */, fullStart, decorators, modifiers);
+ }
+ else if (parseContextualModifier(129 /* SetKeyword */)) {
+ return parseAccessorDeclaration(146 /* SetAccessor */, fullStart, decorators, modifiers);
+ }
+ return undefined;
+ }
+ function parseObjectLiteralElement() {
+ var fullStart = scanner.getStartPos();
+ var decorators = parseDecorators();
+ var modifiers = parseModifiers();
+ var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
+ if (accessor) {
+ return accessor;
+ }
+ var asteriskToken = parseOptionalToken(37 /* AsteriskToken */);
+ var tokenIsIdentifier = isIdentifier();
+ var nameToken = token;
+ var propertyName = parsePropertyName();
+ // Disallowing of optional property assignments happens in the grammar checker.
+ var questionToken = parseOptionalToken(53 /* QuestionToken */);
+ if (asteriskToken || token === 17 /* OpenParenToken */ || token === 25 /* LessThanToken */) {
+ return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, propertyName, questionToken);
+ }
+ // check if it is short-hand property assignment or normal property assignment
+ // NOTE: if token is EqualsToken it is interpreted as CoverInitializedName production
+ // CoverInitializedName[Yield] :
+ // IdentifierReference[?Yield] Initializer[In, ?Yield]
+ // this is necessary because ObjectLiteral productions are also used to cover grammar for ObjectAssignmentPattern
+ var isShorthandPropertyAssignment = tokenIsIdentifier && (token === 24 /* CommaToken */ || token === 16 /* CloseBraceToken */ || token === 56 /* EqualsToken */);
+ if (isShorthandPropertyAssignment) {
+ var shorthandDeclaration = createNode(246 /* ShorthandPropertyAssignment */, fullStart);
+ shorthandDeclaration.name = propertyName;
+ shorthandDeclaration.questionToken = questionToken;
+ var equalsToken = parseOptionalToken(56 /* EqualsToken */);
+ if (equalsToken) {
+ shorthandDeclaration.equalsToken = equalsToken;
+ shorthandDeclaration.objectAssignmentInitializer = allowInAnd(parseAssignmentExpressionOrHigher);
+ }
+ return finishNode(shorthandDeclaration);
+ }
+ else {
+ var propertyAssignment = createNode(245 /* PropertyAssignment */, fullStart);
+ propertyAssignment.name = propertyName;
+ propertyAssignment.questionToken = questionToken;
+ parseExpected(54 /* ColonToken */);
+ propertyAssignment.initializer = allowInAnd(parseAssignmentExpressionOrHigher);
+ return finishNode(propertyAssignment);
+ }
+ }
+ function parseObjectLiteralExpression() {
+ var node = createNode(165 /* ObjectLiteralExpression */);
+ parseExpected(15 /* OpenBraceToken */);
+ if (scanner.hasPrecedingLineBreak()) {
+ node.flags |= 2048 /* MultiLine */;
+ }
+ node.properties = parseDelimitedList(12 /* ObjectLiteralMembers */, parseObjectLiteralElement, /*considerSemicolonAsDelimeter*/ true);
+ parseExpected(16 /* CloseBraceToken */);
+ return finishNode(node);
+ }
+ function parseFunctionExpression() {
+ // GeneratorExpression:
+ // function* BindingIdentifier [Yield][opt](FormalParameters[Yield]){ GeneratorBody }
+ //
+ // FunctionExpression:
+ // function BindingIdentifier[opt](FormalParameters){ FunctionBody }
+ var saveDecoratorContext = inDecoratorContext();
+ if (saveDecoratorContext) {
+ setDecoratorContext(false);
+ }
+ var node = createNode(173 /* FunctionExpression */);
+ setModifiers(node, parseModifiers());
+ parseExpected(87 /* FunctionKeyword */);
+ node.asteriskToken = parseOptionalToken(37 /* AsteriskToken */);
+ var isGenerator = !!node.asteriskToken;
+ var isAsync = !!(node.flags & 512 /* Async */);
+ node.name =
+ isGenerator && isAsync ? doInYieldAndAwaitContext(parseOptionalIdentifier) :
+ isGenerator ? doInYieldContext(parseOptionalIdentifier) :
+ isAsync ? doInAwaitContext(parseOptionalIdentifier) :
+ parseOptionalIdentifier();
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ isGenerator, /*awaitContext*/ isAsync, /*requireCompleteParameterList*/ false, node);
+ node.body = parseFunctionBlock(/*allowYield*/ isGenerator, /*allowAwait*/ isAsync, /*ignoreMissingOpenBrace*/ false);
+ if (saveDecoratorContext) {
+ setDecoratorContext(true);
+ }
+ return finishNode(node);
+ }
+ function parseOptionalIdentifier() {
+ return isIdentifier() ? parseIdentifier() : undefined;
+ }
+ function parseNewExpression() {
+ var node = createNode(169 /* NewExpression */);
+ parseExpected(92 /* NewKeyword */);
+ node.expression = parseMemberExpressionOrHigher();
+ node.typeArguments = tryParse(parseTypeArgumentsInExpression);
+ if (node.typeArguments || token === 17 /* OpenParenToken */) {
+ node.arguments = parseArgumentList();
+ }
+ return finishNode(node);
+ }
+ // STATEMENTS
+ function parseBlock(ignoreMissingOpenBrace, diagnosticMessage) {
+ var node = createNode(192 /* Block */);
+ if (parseExpected(15 /* OpenBraceToken */, diagnosticMessage) || ignoreMissingOpenBrace) {
+ node.statements = parseList(1 /* BlockStatements */, parseStatement);
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ node.statements = createMissingList();
+ }
+ return finishNode(node);
+ }
+ function parseFunctionBlock(allowYield, allowAwait, ignoreMissingOpenBrace, diagnosticMessage) {
+ var savedYieldContext = inYieldContext();
+ setYieldContext(allowYield);
+ var savedAwaitContext = inAwaitContext();
+ setAwaitContext(allowAwait);
+ // We may be in a [Decorator] context when parsing a function expression or
+ // arrow function. The body of the function is not in [Decorator] context.
+ var saveDecoratorContext = inDecoratorContext();
+ if (saveDecoratorContext) {
+ setDecoratorContext(false);
+ }
+ var block = parseBlock(ignoreMissingOpenBrace, diagnosticMessage);
+ if (saveDecoratorContext) {
+ setDecoratorContext(true);
+ }
+ setYieldContext(savedYieldContext);
+ setAwaitContext(savedAwaitContext);
+ return block;
+ }
+ function parseEmptyStatement() {
+ var node = createNode(194 /* EmptyStatement */);
+ parseExpected(23 /* SemicolonToken */);
+ return finishNode(node);
+ }
+ function parseIfStatement() {
+ var node = createNode(196 /* IfStatement */);
+ parseExpected(88 /* IfKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ node.thenStatement = parseStatement();
+ node.elseStatement = parseOptional(80 /* ElseKeyword */) ? parseStatement() : undefined;
+ return finishNode(node);
+ }
+ function parseDoStatement() {
+ var node = createNode(197 /* DoStatement */);
+ parseExpected(79 /* DoKeyword */);
+ node.statement = parseStatement();
+ parseExpected(104 /* WhileKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ // From: https://mail.mozilla.org/pipermail/es-discuss/2011-August/016188.html
+ // 157 min --- All allen at wirfs-brock.com CONF --- "do{;}while(false)false" prohibited in
+ // spec but allowed in consensus reality. Approved -- this is the de-facto standard whereby
+ // do;while(0)x will have a semicolon inserted before x.
+ parseOptional(23 /* SemicolonToken */);
+ return finishNode(node);
+ }
+ function parseWhileStatement() {
+ var node = createNode(198 /* WhileStatement */);
+ parseExpected(104 /* WhileKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ node.statement = parseStatement();
+ return finishNode(node);
+ }
+ function parseForOrForInOrForOfStatement() {
+ var pos = getNodePos();
+ parseExpected(86 /* ForKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ var initializer = undefined;
+ if (token !== 23 /* SemicolonToken */) {
+ if (token === 102 /* VarKeyword */ || token === 108 /* LetKeyword */ || token === 74 /* ConstKeyword */) {
+ initializer = parseVariableDeclarationList(/*inForStatementInitializer*/ true);
+ }
+ else {
+ initializer = disallowInAnd(parseExpression);
+ }
+ }
+ var forOrForInOrForOfStatement;
+ if (parseOptional(90 /* InKeyword */)) {
+ var forInStatement = createNode(200 /* ForInStatement */, pos);
+ forInStatement.initializer = initializer;
+ forInStatement.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ forOrForInOrForOfStatement = forInStatement;
+ }
+ else if (parseOptional(134 /* OfKeyword */)) {
+ var forOfStatement = createNode(201 /* ForOfStatement */, pos);
+ forOfStatement.initializer = initializer;
+ forOfStatement.expression = allowInAnd(parseAssignmentExpressionOrHigher);
+ parseExpected(18 /* CloseParenToken */);
+ forOrForInOrForOfStatement = forOfStatement;
+ }
+ else {
+ var forStatement = createNode(199 /* ForStatement */, pos);
+ forStatement.initializer = initializer;
+ parseExpected(23 /* SemicolonToken */);
+ if (token !== 23 /* SemicolonToken */ && token !== 18 /* CloseParenToken */) {
+ forStatement.condition = allowInAnd(parseExpression);
+ }
+ parseExpected(23 /* SemicolonToken */);
+ if (token !== 18 /* CloseParenToken */) {
+ forStatement.incrementor = allowInAnd(parseExpression);
+ }
+ parseExpected(18 /* CloseParenToken */);
+ forOrForInOrForOfStatement = forStatement;
+ }
+ forOrForInOrForOfStatement.statement = parseStatement();
+ return finishNode(forOrForInOrForOfStatement);
+ }
+ function parseBreakOrContinueStatement(kind) {
+ var node = createNode(kind);
+ parseExpected(kind === 203 /* BreakStatement */ ? 70 /* BreakKeyword */ : 75 /* ContinueKeyword */);
+ if (!canParseSemicolon()) {
+ node.label = parseIdentifier();
+ }
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function parseReturnStatement() {
+ var node = createNode(204 /* ReturnStatement */);
+ parseExpected(94 /* ReturnKeyword */);
+ if (!canParseSemicolon()) {
+ node.expression = allowInAnd(parseExpression);
+ }
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function parseWithStatement() {
+ var node = createNode(205 /* WithStatement */);
+ parseExpected(105 /* WithKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ node.statement = parseStatement();
+ return finishNode(node);
+ }
+ function parseCaseClause() {
+ var node = createNode(241 /* CaseClause */);
+ parseExpected(71 /* CaseKeyword */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(54 /* ColonToken */);
+ node.statements = parseList(3 /* SwitchClauseStatements */, parseStatement);
+ return finishNode(node);
+ }
+ function parseDefaultClause() {
+ var node = createNode(242 /* DefaultClause */);
+ parseExpected(77 /* DefaultKeyword */);
+ parseExpected(54 /* ColonToken */);
+ node.statements = parseList(3 /* SwitchClauseStatements */, parseStatement);
+ return finishNode(node);
+ }
+ function parseCaseOrDefaultClause() {
+ return token === 71 /* CaseKeyword */ ? parseCaseClause() : parseDefaultClause();
+ }
+ function parseSwitchStatement() {
+ var node = createNode(206 /* SwitchStatement */);
+ parseExpected(96 /* SwitchKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = allowInAnd(parseExpression);
+ parseExpected(18 /* CloseParenToken */);
+ var caseBlock = createNode(220 /* CaseBlock */, scanner.getStartPos());
+ parseExpected(15 /* OpenBraceToken */);
+ caseBlock.clauses = parseList(2 /* SwitchClauses */, parseCaseOrDefaultClause);
+ parseExpected(16 /* CloseBraceToken */);
+ node.caseBlock = finishNode(caseBlock);
+ return finishNode(node);
+ }
+ function parseThrowStatement() {
+ // ThrowStatement[Yield] :
+ // throw [no LineTerminator here]Expression[In, ?Yield];
+ // Because of automatic semicolon insertion, we need to report error if this
+ // throw could be terminated with a semicolon. Note: we can't call 'parseExpression'
+ // directly as that might consume an expression on the following line.
+ // We just return 'undefined' in that case. The actual error will be reported in the
+ // grammar walker.
+ var node = createNode(208 /* ThrowStatement */);
+ parseExpected(98 /* ThrowKeyword */);
+ node.expression = scanner.hasPrecedingLineBreak() ? undefined : allowInAnd(parseExpression);
+ parseSemicolon();
+ return finishNode(node);
+ }
+ // TODO: Review for error recovery
+ function parseTryStatement() {
+ var node = createNode(209 /* TryStatement */);
+ parseExpected(100 /* TryKeyword */);
+ node.tryBlock = parseBlock(/*ignoreMissingOpenBrace*/ false);
+ node.catchClause = token === 72 /* CatchKeyword */ ? parseCatchClause() : undefined;
+ // If we don't have a catch clause, then we must have a finally clause. Try to parse
+ // one out no matter what.
+ if (!node.catchClause || token === 85 /* FinallyKeyword */) {
+ parseExpected(85 /* FinallyKeyword */);
+ node.finallyBlock = parseBlock(/*ignoreMissingOpenBrace*/ false);
+ }
+ return finishNode(node);
+ }
+ function parseCatchClause() {
+ var result = createNode(244 /* CatchClause */);
+ parseExpected(72 /* CatchKeyword */);
+ if (parseExpected(17 /* OpenParenToken */)) {
+ result.variableDeclaration = parseVariableDeclaration();
+ }
+ parseExpected(18 /* CloseParenToken */);
+ result.block = parseBlock(/*ignoreMissingOpenBrace*/ false);
+ return finishNode(result);
+ }
+ function parseDebuggerStatement() {
+ var node = createNode(210 /* DebuggerStatement */);
+ parseExpected(76 /* DebuggerKeyword */);
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function parseExpressionOrLabeledStatement() {
+ // Avoiding having to do the lookahead for a labeled statement by just trying to parse
+ // out an expression, seeing if it is identifier and then seeing if it is followed by
+ // a colon.
+ var fullStart = scanner.getStartPos();
+ var expression = allowInAnd(parseExpression);
+ if (expression.kind === 69 /* Identifier */ && parseOptional(54 /* ColonToken */)) {
+ var labeledStatement = createNode(207 /* LabeledStatement */, fullStart);
+ labeledStatement.label = expression;
+ labeledStatement.statement = parseStatement();
+ return finishNode(labeledStatement);
+ }
+ else {
+ var expressionStatement = createNode(195 /* ExpressionStatement */, fullStart);
+ expressionStatement.expression = expression;
+ parseSemicolon();
+ return finishNode(expressionStatement);
+ }
+ }
+ function nextTokenIsIdentifierOrKeywordOnSameLine() {
+ nextToken();
+ return ts.tokenIsIdentifierOrKeyword(token) && !scanner.hasPrecedingLineBreak();
+ }
+ function nextTokenIsFunctionKeywordOnSameLine() {
+ nextToken();
+ return token === 87 /* FunctionKeyword */ && !scanner.hasPrecedingLineBreak();
+ }
+ function nextTokenIsIdentifierOrKeywordOrNumberOnSameLine() {
+ nextToken();
+ return (ts.tokenIsIdentifierOrKeyword(token) || token === 8 /* NumericLiteral */) && !scanner.hasPrecedingLineBreak();
+ }
+ function isDeclaration() {
+ while (true) {
+ switch (token) {
+ case 102 /* VarKeyword */:
+ case 108 /* LetKeyword */:
+ case 74 /* ConstKeyword */:
+ case 87 /* FunctionKeyword */:
+ case 73 /* ClassKeyword */:
+ case 81 /* EnumKeyword */:
+ return true;
+ // 'declare', 'module', 'namespace', 'interface'* and 'type' are all legal JavaScript identifiers;
+ // however, an identifier cannot be followed by another identifier on the same line. This is what we
+ // count on to parse out the respective declarations. For instance, we exploit this to say that
+ //
+ // namespace n
+ //
+ // can be none other than the beginning of a namespace declaration, but need to respect that JavaScript sees
+ //
+ // namespace
+ // n
+ //
+ // as the identifier 'namespace' on one line followed by the identifier 'n' on another.
+ // We need to look one token ahead to see if it permissible to try parsing a declaration.
+ //
+ // *Note*: 'interface' is actually a strict mode reserved word. So while
+ //
+ // "use strict"
+ // interface
+ // I {}
+ //
+ // could be legal, it would add complexity for very little gain.
+ case 107 /* InterfaceKeyword */:
+ case 132 /* TypeKeyword */:
+ return nextTokenIsIdentifierOnSameLine();
+ case 125 /* ModuleKeyword */:
+ case 126 /* NamespaceKeyword */:
+ return nextTokenIsIdentifierOrStringLiteralOnSameLine();
+ case 115 /* AbstractKeyword */:
+ case 118 /* AsyncKeyword */:
+ case 122 /* DeclareKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 112 /* PublicKeyword */:
+ nextToken();
+ // ASI takes effect for this modifier.
+ if (scanner.hasPrecedingLineBreak()) {
+ return false;
+ }
+ continue;
+ case 89 /* ImportKeyword */:
+ nextToken();
+ return token === 9 /* StringLiteral */ || token === 37 /* AsteriskToken */ ||
+ token === 15 /* OpenBraceToken */ || ts.tokenIsIdentifierOrKeyword(token);
+ case 82 /* ExportKeyword */:
+ nextToken();
+ if (token === 56 /* EqualsToken */ || token === 37 /* AsteriskToken */ ||
+ token === 15 /* OpenBraceToken */ || token === 77 /* DefaultKeyword */) {
+ return true;
+ }
+ continue;
+ case 113 /* StaticKeyword */:
+ nextToken();
+ continue;
+ default:
+ return false;
+ }
+ }
+ }
+ function isStartOfDeclaration() {
+ return lookAhead(isDeclaration);
+ }
+ function isStartOfStatement() {
+ switch (token) {
+ case 55 /* AtToken */:
+ case 23 /* SemicolonToken */:
+ case 15 /* OpenBraceToken */:
+ case 102 /* VarKeyword */:
+ case 108 /* LetKeyword */:
+ case 87 /* FunctionKeyword */:
+ case 73 /* ClassKeyword */:
+ case 81 /* EnumKeyword */:
+ case 88 /* IfKeyword */:
+ case 79 /* DoKeyword */:
+ case 104 /* WhileKeyword */:
+ case 86 /* ForKeyword */:
+ case 75 /* ContinueKeyword */:
+ case 70 /* BreakKeyword */:
+ case 94 /* ReturnKeyword */:
+ case 105 /* WithKeyword */:
+ case 96 /* SwitchKeyword */:
+ case 98 /* ThrowKeyword */:
+ case 100 /* TryKeyword */:
+ case 76 /* DebuggerKeyword */:
+ // 'catch' and 'finally' do not actually indicate that the code is part of a statement,
+ // however, we say they are here so that we may gracefully parse them and error later.
+ case 72 /* CatchKeyword */:
+ case 85 /* FinallyKeyword */:
+ return true;
+ case 74 /* ConstKeyword */:
+ case 82 /* ExportKeyword */:
+ case 89 /* ImportKeyword */:
+ return isStartOfDeclaration();
+ case 118 /* AsyncKeyword */:
+ case 122 /* DeclareKeyword */:
+ case 107 /* InterfaceKeyword */:
+ case 125 /* ModuleKeyword */:
+ case 126 /* NamespaceKeyword */:
+ case 132 /* TypeKeyword */:
+ // When these don't start a declaration, they're an identifier in an expression statement
+ return true;
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 113 /* StaticKeyword */:
+ // When these don't start a declaration, they may be the start of a class member if an identifier
+ // immediately follows. Otherwise they're an identifier in an expression statement.
+ return isStartOfDeclaration() || !lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
+ default:
+ return isStartOfExpression();
+ }
+ }
+ function nextTokenIsIdentifierOrStartOfDestructuring() {
+ nextToken();
+ return isIdentifier() || token === 15 /* OpenBraceToken */ || token === 19 /* OpenBracketToken */;
+ }
+ function isLetDeclaration() {
+ // In ES6 'let' always starts a lexical declaration if followed by an identifier or {
+ // or [.
+ return lookAhead(nextTokenIsIdentifierOrStartOfDestructuring);
+ }
+ function parseStatement() {
+ switch (token) {
+ case 23 /* SemicolonToken */:
+ return parseEmptyStatement();
+ case 15 /* OpenBraceToken */:
+ return parseBlock(/*ignoreMissingOpenBrace*/ false);
+ case 102 /* VarKeyword */:
+ return parseVariableStatement(scanner.getStartPos(), /*decorators*/ undefined, /*modifiers*/ undefined);
+ case 108 /* LetKeyword */:
+ if (isLetDeclaration()) {
+ return parseVariableStatement(scanner.getStartPos(), /*decorators*/ undefined, /*modifiers*/ undefined);
+ }
+ break;
+ case 87 /* FunctionKeyword */:
+ return parseFunctionDeclaration(scanner.getStartPos(), /*decorators*/ undefined, /*modifiers*/ undefined);
+ case 73 /* ClassKeyword */:
+ return parseClassDeclaration(scanner.getStartPos(), /*decorators*/ undefined, /*modifiers*/ undefined);
+ case 88 /* IfKeyword */:
+ return parseIfStatement();
+ case 79 /* DoKeyword */:
+ return parseDoStatement();
+ case 104 /* WhileKeyword */:
+ return parseWhileStatement();
+ case 86 /* ForKeyword */:
+ return parseForOrForInOrForOfStatement();
+ case 75 /* ContinueKeyword */:
+ return parseBreakOrContinueStatement(202 /* ContinueStatement */);
+ case 70 /* BreakKeyword */:
+ return parseBreakOrContinueStatement(203 /* BreakStatement */);
+ case 94 /* ReturnKeyword */:
+ return parseReturnStatement();
+ case 105 /* WithKeyword */:
+ return parseWithStatement();
+ case 96 /* SwitchKeyword */:
+ return parseSwitchStatement();
+ case 98 /* ThrowKeyword */:
+ return parseThrowStatement();
+ case 100 /* TryKeyword */:
+ // Include 'catch' and 'finally' for error recovery.
+ case 72 /* CatchKeyword */:
+ case 85 /* FinallyKeyword */:
+ return parseTryStatement();
+ case 76 /* DebuggerKeyword */:
+ return parseDebuggerStatement();
+ case 55 /* AtToken */:
+ return parseDeclaration();
+ case 118 /* AsyncKeyword */:
+ case 107 /* InterfaceKeyword */:
+ case 132 /* TypeKeyword */:
+ case 125 /* ModuleKeyword */:
+ case 126 /* NamespaceKeyword */:
+ case 122 /* DeclareKeyword */:
+ case 74 /* ConstKeyword */:
+ case 81 /* EnumKeyword */:
+ case 82 /* ExportKeyword */:
+ case 89 /* ImportKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 112 /* PublicKeyword */:
+ case 115 /* AbstractKeyword */:
+ case 113 /* StaticKeyword */:
+ if (isStartOfDeclaration()) {
+ return parseDeclaration();
+ }
+ break;
+ }
+ return parseExpressionOrLabeledStatement();
+ }
+ function parseDeclaration() {
+ var fullStart = getNodePos();
+ var decorators = parseDecorators();
+ var modifiers = parseModifiers();
+ switch (token) {
+ case 102 /* VarKeyword */:
+ case 108 /* LetKeyword */:
+ case 74 /* ConstKeyword */:
+ return parseVariableStatement(fullStart, decorators, modifiers);
+ case 87 /* FunctionKeyword */:
+ return parseFunctionDeclaration(fullStart, decorators, modifiers);
+ case 73 /* ClassKeyword */:
+ return parseClassDeclaration(fullStart, decorators, modifiers);
+ case 107 /* InterfaceKeyword */:
+ return parseInterfaceDeclaration(fullStart, decorators, modifiers);
+ case 132 /* TypeKeyword */:
+ return parseTypeAliasDeclaration(fullStart, decorators, modifiers);
+ case 81 /* EnumKeyword */:
+ return parseEnumDeclaration(fullStart, decorators, modifiers);
+ case 125 /* ModuleKeyword */:
+ case 126 /* NamespaceKeyword */:
+ return parseModuleDeclaration(fullStart, decorators, modifiers);
+ case 89 /* ImportKeyword */:
+ return parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers);
+ case 82 /* ExportKeyword */:
+ nextToken();
+ return token === 77 /* DefaultKeyword */ || token === 56 /* EqualsToken */ ?
+ parseExportAssignment(fullStart, decorators, modifiers) :
+ parseExportDeclaration(fullStart, decorators, modifiers);
+ default:
+ if (decorators || modifiers) {
+ // We reached this point because we encountered decorators and/or modifiers and assumed a declaration
+ // would follow. For recovery and error reporting purposes, return an incomplete declaration.
+ var node = createMissingNode(231 /* MissingDeclaration */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
+ node.pos = fullStart;
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ return finishNode(node);
+ }
+ }
+ }
+ function nextTokenIsIdentifierOrStringLiteralOnSameLine() {
+ nextToken();
+ return !scanner.hasPrecedingLineBreak() && (isIdentifier() || token === 9 /* StringLiteral */);
+ }
+ function parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage) {
+ if (token !== 15 /* OpenBraceToken */ && canParseSemicolon()) {
+ parseSemicolon();
+ return;
+ }
+ return parseFunctionBlock(isGenerator, isAsync, /*ignoreMissingOpenBrace*/ false, diagnosticMessage);
+ }
+ // DECLARATIONS
+ function parseArrayBindingElement() {
+ if (token === 24 /* CommaToken */) {
+ return createNode(187 /* OmittedExpression */);
+ }
+ var node = createNode(163 /* BindingElement */);
+ node.dotDotDotToken = parseOptionalToken(22 /* DotDotDotToken */);
+ node.name = parseIdentifierOrPattern();
+ node.initializer = parseBindingElementInitializer(/*inParameter*/ false);
+ return finishNode(node);
+ }
+ function parseObjectBindingElement() {
+ var node = createNode(163 /* BindingElement */);
+ // TODO(andersh): Handle computed properties
+ var tokenIsIdentifier = isIdentifier();
+ var propertyName = parsePropertyName();
+ if (tokenIsIdentifier && token !== 54 /* ColonToken */) {
+ node.name = propertyName;
+ }
+ else {
+ parseExpected(54 /* ColonToken */);
+ node.propertyName = propertyName;
+ node.name = parseIdentifierOrPattern();
+ }
+ node.initializer = parseBindingElementInitializer(/*inParameter*/ false);
+ return finishNode(node);
+ }
+ function parseObjectBindingPattern() {
+ var node = createNode(161 /* ObjectBindingPattern */);
+ parseExpected(15 /* OpenBraceToken */);
+ node.elements = parseDelimitedList(9 /* ObjectBindingElements */, parseObjectBindingElement);
+ parseExpected(16 /* CloseBraceToken */);
+ return finishNode(node);
+ }
+ function parseArrayBindingPattern() {
+ var node = createNode(162 /* ArrayBindingPattern */);
+ parseExpected(19 /* OpenBracketToken */);
+ node.elements = parseDelimitedList(10 /* ArrayBindingElements */, parseArrayBindingElement);
+ parseExpected(20 /* CloseBracketToken */);
+ return finishNode(node);
+ }
+ function isIdentifierOrPattern() {
+ return token === 15 /* OpenBraceToken */ || token === 19 /* OpenBracketToken */ || isIdentifier();
+ }
+ function parseIdentifierOrPattern() {
+ if (token === 19 /* OpenBracketToken */) {
+ return parseArrayBindingPattern();
+ }
+ if (token === 15 /* OpenBraceToken */) {
+ return parseObjectBindingPattern();
+ }
+ return parseIdentifier();
+ }
+ function parseVariableDeclaration() {
+ var node = createNode(211 /* VariableDeclaration */);
+ node.name = parseIdentifierOrPattern();
+ node.type = parseTypeAnnotation();
+ if (!isInOrOfKeyword(token)) {
+ node.initializer = parseInitializer(/*inParameter*/ false);
+ }
+ return finishNode(node);
+ }
+ function parseVariableDeclarationList(inForStatementInitializer) {
+ var node = createNode(212 /* VariableDeclarationList */);
+ switch (token) {
+ case 102 /* VarKeyword */:
+ break;
+ case 108 /* LetKeyword */:
+ node.flags |= 16384 /* Let */;
+ break;
+ case 74 /* ConstKeyword */:
+ node.flags |= 32768 /* Const */;
+ break;
+ default:
+ ts.Debug.fail();
+ }
+ nextToken();
+ // The user may have written the following:
+ //
+ // for (let of X) { }
+ //
+ // In this case, we want to parse an empty declaration list, and then parse 'of'
+ // as a keyword. The reason this is not automatic is that 'of' is a valid identifier.
+ // So we need to look ahead to determine if 'of' should be treated as a keyword in
+ // this context.
+ // The checker will then give an error that there is an empty declaration list.
+ if (token === 134 /* OfKeyword */ && lookAhead(canFollowContextualOfKeyword)) {
+ node.declarations = createMissingList();
+ }
+ else {
+ var savedDisallowIn = inDisallowInContext();
+ setDisallowInContext(inForStatementInitializer);
+ node.declarations = parseDelimitedList(8 /* VariableDeclarations */, parseVariableDeclaration);
+ setDisallowInContext(savedDisallowIn);
+ }
+ return finishNode(node);
+ }
+ function canFollowContextualOfKeyword() {
+ return nextTokenIsIdentifier() && nextToken() === 18 /* CloseParenToken */;
+ }
+ function parseVariableStatement(fullStart, decorators, modifiers) {
+ var node = createNode(193 /* VariableStatement */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ node.declarationList = parseVariableDeclarationList(/*inForStatementInitializer*/ false);
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function parseFunctionDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(213 /* FunctionDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(87 /* FunctionKeyword */);
+ node.asteriskToken = parseOptionalToken(37 /* AsteriskToken */);
+ node.name = node.flags & 1024 /* Default */ ? parseOptionalIdentifier() : parseIdentifier();
+ var isGenerator = !!node.asteriskToken;
+ var isAsync = !!(node.flags & 512 /* Async */);
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ isGenerator, /*awaitContext*/ isAsync, /*requireCompleteParameterList*/ false, node);
+ node.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, ts.Diagnostics.or_expected);
+ return finishNode(node);
+ }
+ function parseConstructorDeclaration(pos, decorators, modifiers) {
+ var node = createNode(144 /* Constructor */, pos);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(121 /* ConstructorKeyword */);
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ false, /*awaitContext*/ false, /*requireCompleteParameterList*/ false, node);
+ node.body = parseFunctionBlockOrSemicolon(/*isGenerator*/ false, /*isAsync*/ false, ts.Diagnostics.or_expected);
+ return finishNode(node);
+ }
+ function parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, diagnosticMessage) {
+ var method = createNode(143 /* MethodDeclaration */, fullStart);
+ method.decorators = decorators;
+ setModifiers(method, modifiers);
+ method.asteriskToken = asteriskToken;
+ method.name = name;
+ method.questionToken = questionToken;
+ var isGenerator = !!asteriskToken;
+ var isAsync = !!(method.flags & 512 /* Async */);
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ isGenerator, /*awaitContext*/ isAsync, /*requireCompleteParameterList*/ false, method);
+ method.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage);
+ return finishNode(method);
+ }
+ function parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken) {
+ var property = createNode(141 /* PropertyDeclaration */, fullStart);
+ property.decorators = decorators;
+ setModifiers(property, modifiers);
+ property.name = name;
+ property.questionToken = questionToken;
+ property.type = parseTypeAnnotation();
+ // For instance properties specifically, since they are evaluated inside the constructor,
+ // we do *not * want to parse yield expressions, so we specifically turn the yield context
+ // off. The grammar would look something like this:
+ //
+ // MemberVariableDeclaration[Yield]:
+ // AccessibilityModifier_opt PropertyName TypeAnnotation_opt Initialiser_opt[In];
+ // AccessibilityModifier_opt static_opt PropertyName TypeAnnotation_opt Initialiser_opt[In, ?Yield];
+ //
+ // The checker may still error in the static case to explicitly disallow the yield expression.
+ property.initializer = modifiers && modifiers.flags & 128 /* Static */
+ ? allowInAnd(parseNonParameterInitializer)
+ : doOutsideOfContext(2 /* Yield */ | 1 /* DisallowIn */, parseNonParameterInitializer);
+ parseSemicolon();
+ return finishNode(property);
+ }
+ function parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers) {
+ var asteriskToken = parseOptionalToken(37 /* AsteriskToken */);
+ var name = parsePropertyName();
+ // Note: this is not legal as per the grammar. But we allow it in the parser and
+ // report an error in the grammar checker.
+ var questionToken = parseOptionalToken(53 /* QuestionToken */);
+ if (asteriskToken || token === 17 /* OpenParenToken */ || token === 25 /* LessThanToken */) {
+ return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, ts.Diagnostics.or_expected);
+ }
+ else {
+ return parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken);
+ }
+ }
+ function parseNonParameterInitializer() {
+ return parseInitializer(/*inParameter*/ false);
+ }
+ function parseAccessorDeclaration(kind, fullStart, decorators, modifiers) {
+ var node = createNode(kind, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ node.name = parsePropertyName();
+ fillSignature(54 /* ColonToken */, /*yieldContext*/ false, /*awaitContext*/ false, /*requireCompleteParameterList*/ false, node);
+ node.body = parseFunctionBlockOrSemicolon(/*isGenerator*/ false, /*isAsync*/ false);
+ return finishNode(node);
+ }
+ function isClassMemberModifier(idToken) {
+ switch (idToken) {
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 113 /* StaticKeyword */:
+ return true;
+ default:
+ return false;
+ }
+ }
+ function isClassMemberStart() {
+ var idToken;
+ if (token === 55 /* AtToken */) {
+ return true;
+ }
+ // Eat up all modifiers, but hold on to the last one in case it is actually an identifier.
+ while (ts.isModifier(token)) {
+ idToken = token;
+ // If the idToken is a class modifier (protected, private, public, and static), it is
+ // certain that we are starting to parse class member. This allows better error recovery
+ // Example:
+ // public foo() ... // true
+ // public @dec blah ... // true; we will then report an error later
+ // export public ... // true; we will then report an error later
+ if (isClassMemberModifier(idToken)) {
+ return true;
+ }
+ nextToken();
+ }
+ if (token === 37 /* AsteriskToken */) {
+ return true;
+ }
+ // Try to get the first property-like token following all modifiers.
+ // This can either be an identifier or the 'get' or 'set' keywords.
+ if (isLiteralPropertyName()) {
+ idToken = token;
+ nextToken();
+ }
+ // Index signatures and computed properties are class members; we can parse.
+ if (token === 19 /* OpenBracketToken */) {
+ return true;
+ }
+ // If we were able to get any potential identifier...
+ if (idToken !== undefined) {
+ // If we have a non-keyword identifier, or if we have an accessor, then it's safe to parse.
+ if (!ts.isKeyword(idToken) || idToken === 129 /* SetKeyword */ || idToken === 123 /* GetKeyword */) {
+ return true;
+ }
+ // If it *is* a keyword, but not an accessor, check a little farther along
+ // to see if it should actually be parsed as a class member.
+ switch (token) {
+ case 17 /* OpenParenToken */: // Method declaration
+ case 25 /* LessThanToken */: // Generic Method declaration
+ case 54 /* ColonToken */: // Type Annotation for declaration
+ case 56 /* EqualsToken */: // Initializer for declaration
+ case 53 /* QuestionToken */:
+ return true;
+ default:
+ // Covers
+ // - Semicolons (declaration termination)
+ // - Closing braces (end-of-class, must be declaration)
+ // - End-of-files (not valid, but permitted so that it gets caught later on)
+ // - Line-breaks (enabling *automatic semicolon insertion*)
+ return canParseSemicolon();
+ }
+ }
+ return false;
+ }
+ function parseDecorators() {
+ var decorators;
+ while (true) {
+ var decoratorStart = getNodePos();
+ if (!parseOptional(55 /* AtToken */)) {
+ break;
+ }
+ if (!decorators) {
+ decorators = [];
+ decorators.pos = scanner.getStartPos();
+ }
+ var decorator = createNode(139 /* Decorator */, decoratorStart);
+ decorator.expression = doInDecoratorContext(parseLeftHandSideExpressionOrHigher);
+ decorators.push(finishNode(decorator));
+ }
+ if (decorators) {
+ decorators.end = getNodeEnd();
+ }
+ return decorators;
+ }
+ function parseModifiers() {
+ var flags = 0;
+ var modifiers;
+ while (true) {
+ var modifierStart = scanner.getStartPos();
+ var modifierKind = token;
+ if (!parseAnyContextualModifier()) {
+ break;
+ }
+ if (!modifiers) {
+ modifiers = [];
+ modifiers.pos = modifierStart;
+ }
+ flags |= ts.modifierToFlag(modifierKind);
+ modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
+ }
+ if (modifiers) {
+ modifiers.flags = flags;
+ modifiers.end = scanner.getStartPos();
+ }
+ return modifiers;
+ }
+ function parseModifiersForArrowFunction() {
+ var flags = 0;
+ var modifiers;
+ if (token === 118 /* AsyncKeyword */) {
+ var modifierStart = scanner.getStartPos();
+ var modifierKind = token;
+ nextToken();
+ modifiers = [];
+ modifiers.pos = modifierStart;
+ flags |= ts.modifierToFlag(modifierKind);
+ modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
+ modifiers.flags = flags;
+ modifiers.end = scanner.getStartPos();
+ }
+ return modifiers;
+ }
+ function parseClassElement() {
+ if (token === 23 /* SemicolonToken */) {
+ var result = createNode(191 /* SemicolonClassElement */);
+ nextToken();
+ return finishNode(result);
+ }
+ var fullStart = getNodePos();
+ var decorators = parseDecorators();
+ var modifiers = parseModifiers();
+ var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
+ if (accessor) {
+ return accessor;
+ }
+ if (token === 121 /* ConstructorKeyword */) {
+ return parseConstructorDeclaration(fullStart, decorators, modifiers);
+ }
+ if (isIndexSignature()) {
+ return parseIndexSignatureDeclaration(fullStart, decorators, modifiers);
+ }
+ // It is very important that we check this *after* checking indexers because
+ // the [ token can start an index signature or a computed property name
+ if (ts.tokenIsIdentifierOrKeyword(token) ||
+ token === 9 /* StringLiteral */ ||
+ token === 8 /* NumericLiteral */ ||
+ token === 37 /* AsteriskToken */ ||
+ token === 19 /* OpenBracketToken */) {
+ return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
+ }
+ if (decorators || modifiers) {
+ // treat this as a property declaration with a missing name.
+ var name_7 = createMissingNode(69 /* Identifier */, /*reportAtCurrentPosition*/ true, ts.Diagnostics.Declaration_expected);
+ return parsePropertyDeclaration(fullStart, decorators, modifiers, name_7, /*questionToken*/ undefined);
+ }
+ // 'isClassMemberStart' should have hinted not to attempt parsing.
+ ts.Debug.fail("Should not have attempted to parse class member declaration.");
+ }
+ function parseClassExpression() {
+ return parseClassDeclarationOrExpression(
+ /*fullStart*/ scanner.getStartPos(),
+ /*decorators*/ undefined,
+ /*modifiers*/ undefined, 186 /* ClassExpression */);
+ }
+ function parseClassDeclaration(fullStart, decorators, modifiers) {
+ return parseClassDeclarationOrExpression(fullStart, decorators, modifiers, 214 /* ClassDeclaration */);
+ }
+ function parseClassDeclarationOrExpression(fullStart, decorators, modifiers, kind) {
+ var node = createNode(kind, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(73 /* ClassKeyword */);
+ node.name = parseNameOfClassDeclarationOrExpression();
+ node.typeParameters = parseTypeParameters();
+ node.heritageClauses = parseHeritageClauses(/*isClassHeritageClause*/ true);
+ if (parseExpected(15 /* OpenBraceToken */)) {
+ // ClassTail[Yield,Await] : (Modified) See 14.5
+ // ClassHeritage[?Yield,?Await]opt { ClassBody[?Yield,?Await]opt }
+ node.members = parseClassMembers();
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ node.members = createMissingList();
+ }
+ return finishNode(node);
+ }
+ function parseNameOfClassDeclarationOrExpression() {
+ // implements is a future reserved word so
+ // 'class implements' might mean either
+ // - class expression with omitted name, 'implements' starts heritage clause
+ // - class with name 'implements'
+ // 'isImplementsClause' helps to disambiguate between these two cases
+ return isIdentifier() && !isImplementsClause()
+ ? parseIdentifier()
+ : undefined;
+ }
+ function isImplementsClause() {
+ return token === 106 /* ImplementsKeyword */ && lookAhead(nextTokenIsIdentifierOrKeyword);
+ }
+ function parseHeritageClauses(isClassHeritageClause) {
+ // ClassTail[Yield,Await] : (Modified) See 14.5
+ // ClassHeritage[?Yield,?Await]opt { ClassBody[?Yield,?Await]opt }
+ if (isHeritageClause()) {
+ return parseList(20 /* HeritageClauses */, parseHeritageClause);
+ }
+ return undefined;
+ }
+ function parseHeritageClausesWorker() {
+ return parseList(20 /* HeritageClauses */, parseHeritageClause);
+ }
+ function parseHeritageClause() {
+ if (token === 83 /* ExtendsKeyword */ || token === 106 /* ImplementsKeyword */) {
+ var node = createNode(243 /* HeritageClause */);
+ node.token = token;
+ nextToken();
+ node.types = parseDelimitedList(7 /* HeritageClauseElement */, parseExpressionWithTypeArguments);
+ return finishNode(node);
+ }
+ return undefined;
+ }
+ function parseExpressionWithTypeArguments() {
+ var node = createNode(188 /* ExpressionWithTypeArguments */);
+ node.expression = parseLeftHandSideExpressionOrHigher();
+ if (token === 25 /* LessThanToken */) {
+ node.typeArguments = parseBracketedList(18 /* TypeArguments */, parseType, 25 /* LessThanToken */, 27 /* GreaterThanToken */);
+ }
+ return finishNode(node);
+ }
+ function isHeritageClause() {
+ return token === 83 /* ExtendsKeyword */ || token === 106 /* ImplementsKeyword */;
+ }
+ function parseClassMembers() {
+ return parseList(5 /* ClassMembers */, parseClassElement);
+ }
+ function parseInterfaceDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(215 /* InterfaceDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(107 /* InterfaceKeyword */);
+ node.name = parseIdentifier();
+ node.typeParameters = parseTypeParameters();
+ node.heritageClauses = parseHeritageClauses(/*isClassHeritageClause*/ false);
+ node.members = parseObjectTypeMembers();
+ return finishNode(node);
+ }
+ function parseTypeAliasDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(216 /* TypeAliasDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(132 /* TypeKeyword */);
+ node.name = parseIdentifier();
+ node.typeParameters = parseTypeParameters();
+ parseExpected(56 /* EqualsToken */);
+ node.type = parseType();
+ parseSemicolon();
+ return finishNode(node);
+ }
+ // In an ambient declaration, the grammar only allows integer literals as initializers.
+ // In a non-ambient declaration, the grammar allows uninitialized members only in a
+ // ConstantEnumMemberSection, which starts at the beginning of an enum declaration
+ // or any time an integer literal initializer is encountered.
+ function parseEnumMember() {
+ var node = createNode(247 /* EnumMember */, scanner.getStartPos());
+ node.name = parsePropertyName();
+ node.initializer = allowInAnd(parseNonParameterInitializer);
+ return finishNode(node);
+ }
+ function parseEnumDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(217 /* EnumDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ parseExpected(81 /* EnumKeyword */);
+ node.name = parseIdentifier();
+ if (parseExpected(15 /* OpenBraceToken */)) {
+ node.members = parseDelimitedList(6 /* EnumMembers */, parseEnumMember);
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ node.members = createMissingList();
+ }
+ return finishNode(node);
+ }
+ function parseModuleBlock() {
+ var node = createNode(219 /* ModuleBlock */, scanner.getStartPos());
+ if (parseExpected(15 /* OpenBraceToken */)) {
+ node.statements = parseList(1 /* BlockStatements */, parseStatement);
+ parseExpected(16 /* CloseBraceToken */);
+ }
+ else {
+ node.statements = createMissingList();
+ }
+ return finishNode(node);
+ }
+ function parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags) {
+ var node = createNode(218 /* ModuleDeclaration */, fullStart);
+ // If we are parsing a dotted namespace name, we want to
+ // propagate the 'Namespace' flag across the names if set.
+ var namespaceFlag = flags & 131072 /* Namespace */;
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ node.flags |= flags;
+ node.name = parseIdentifier();
+ node.body = parseOptional(21 /* DotToken */)
+ ? parseModuleOrNamespaceDeclaration(getNodePos(), /*decorators*/ undefined, /*modifiers*/ undefined, 1 /* Export */ | namespaceFlag)
+ : parseModuleBlock();
+ return finishNode(node);
+ }
+ function parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(218 /* ModuleDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ node.name = parseLiteralNode(/*internName*/ true);
+ node.body = parseModuleBlock();
+ return finishNode(node);
+ }
+ function parseModuleDeclaration(fullStart, decorators, modifiers) {
+ var flags = modifiers ? modifiers.flags : 0;
+ if (parseOptional(126 /* NamespaceKeyword */)) {
+ flags |= 131072 /* Namespace */;
+ }
+ else {
+ parseExpected(125 /* ModuleKeyword */);
+ if (token === 9 /* StringLiteral */) {
+ return parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers);
+ }
+ }
+ return parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags);
+ }
+ function isExternalModuleReference() {
+ return token === 127 /* RequireKeyword */ &&
+ lookAhead(nextTokenIsOpenParen);
+ }
+ function nextTokenIsOpenParen() {
+ return nextToken() === 17 /* OpenParenToken */;
+ }
+ function nextTokenIsSlash() {
+ return nextToken() === 39 /* SlashToken */;
+ }
+ function nextTokenIsCommaOrFromKeyword() {
+ nextToken();
+ return token === 24 /* CommaToken */ ||
+ token === 133 /* FromKeyword */;
+ }
+ function parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers) {
+ parseExpected(89 /* ImportKeyword */);
+ var afterImportPos = scanner.getStartPos();
+ var identifier;
+ if (isIdentifier()) {
+ identifier = parseIdentifier();
+ if (token !== 24 /* CommaToken */ && token !== 133 /* FromKeyword */) {
+ // ImportEquals declaration of type:
+ // import x = require("mod"); or
+ // import x = M.x;
+ var importEqualsDeclaration = createNode(221 /* ImportEqualsDeclaration */, fullStart);
+ importEqualsDeclaration.decorators = decorators;
+ setModifiers(importEqualsDeclaration, modifiers);
+ importEqualsDeclaration.name = identifier;
+ parseExpected(56 /* EqualsToken */);
+ importEqualsDeclaration.moduleReference = parseModuleReference();
+ parseSemicolon();
+ return finishNode(importEqualsDeclaration);
+ }
+ }
+ // Import statement
+ var importDeclaration = createNode(222 /* ImportDeclaration */, fullStart);
+ importDeclaration.decorators = decorators;
+ setModifiers(importDeclaration, modifiers);
+ // ImportDeclaration:
+ // import ImportClause from ModuleSpecifier ;
+ // import ModuleSpecifier;
+ if (identifier ||
+ token === 37 /* AsteriskToken */ ||
+ token === 15 /* OpenBraceToken */) {
+ importDeclaration.importClause = parseImportClause(identifier, afterImportPos);
+ parseExpected(133 /* FromKeyword */);
+ }
+ importDeclaration.moduleSpecifier = parseModuleSpecifier();
+ parseSemicolon();
+ return finishNode(importDeclaration);
+ }
+ function parseImportClause(identifier, fullStart) {
+ // ImportClause:
+ // ImportedDefaultBinding
+ // NameSpaceImport
+ // NamedImports
+ // ImportedDefaultBinding, NameSpaceImport
+ // ImportedDefaultBinding, NamedImports
+ var importClause = createNode(223 /* ImportClause */, fullStart);
+ if (identifier) {
+ // ImportedDefaultBinding:
+ // ImportedBinding
+ importClause.name = identifier;
+ }
+ // If there was no default import or if there is comma token after default import
+ // parse namespace or named imports
+ if (!importClause.name ||
+ parseOptional(24 /* CommaToken */)) {
+ importClause.namedBindings = token === 37 /* AsteriskToken */ ? parseNamespaceImport() : parseNamedImportsOrExports(225 /* NamedImports */);
+ }
+ return finishNode(importClause);
+ }
+ function parseModuleReference() {
+ return isExternalModuleReference()
+ ? parseExternalModuleReference()
+ : parseEntityName(/*allowReservedWords*/ false);
+ }
+ function parseExternalModuleReference() {
+ var node = createNode(232 /* ExternalModuleReference */);
+ parseExpected(127 /* RequireKeyword */);
+ parseExpected(17 /* OpenParenToken */);
+ node.expression = parseModuleSpecifier();
+ parseExpected(18 /* CloseParenToken */);
+ return finishNode(node);
+ }
+ function parseModuleSpecifier() {
+ // We allow arbitrary expressions here, even though the grammar only allows string
+ // literals. We check to ensure that it is only a string literal later in the grammar
+ // walker.
+ var result = parseExpression();
+ // Ensure the string being required is in our 'identifier' table. This will ensure
+ // that features like 'find refs' will look inside this file when search for its name.
+ if (result.kind === 9 /* StringLiteral */) {
+ internIdentifier(result.text);
+ }
+ return result;
+ }
+ function parseNamespaceImport() {
+ // NameSpaceImport:
+ // * as ImportedBinding
+ var namespaceImport = createNode(224 /* NamespaceImport */);
+ parseExpected(37 /* AsteriskToken */);
+ parseExpected(116 /* AsKeyword */);
+ namespaceImport.name = parseIdentifier();
+ return finishNode(namespaceImport);
+ }
+ function parseNamedImportsOrExports(kind) {
+ var node = createNode(kind);
+ // NamedImports:
+ // { }
+ // { ImportsList }
+ // { ImportsList, }
+ // ImportsList:
+ // ImportSpecifier
+ // ImportsList, ImportSpecifier
+ node.elements = parseBracketedList(21 /* ImportOrExportSpecifiers */, kind === 225 /* NamedImports */ ? parseImportSpecifier : parseExportSpecifier, 15 /* OpenBraceToken */, 16 /* CloseBraceToken */);
+ return finishNode(node);
+ }
+ function parseExportSpecifier() {
+ return parseImportOrExportSpecifier(230 /* ExportSpecifier */);
+ }
+ function parseImportSpecifier() {
+ return parseImportOrExportSpecifier(226 /* ImportSpecifier */);
+ }
+ function parseImportOrExportSpecifier(kind) {
+ var node = createNode(kind);
+ // ImportSpecifier:
+ // BindingIdentifier
+ // IdentifierName as BindingIdentifier
+ // ExportSpecififer:
+ // IdentifierName
+ // IdentifierName as IdentifierName
+ var checkIdentifierIsKeyword = ts.isKeyword(token) && !isIdentifier();
+ var checkIdentifierStart = scanner.getTokenPos();
+ var checkIdentifierEnd = scanner.getTextPos();
+ var identifierName = parseIdentifierName();
+ if (token === 116 /* AsKeyword */) {
+ node.propertyName = identifierName;
+ parseExpected(116 /* AsKeyword */);
+ checkIdentifierIsKeyword = ts.isKeyword(token) && !isIdentifier();
+ checkIdentifierStart = scanner.getTokenPos();
+ checkIdentifierEnd = scanner.getTextPos();
+ node.name = parseIdentifierName();
+ }
+ else {
+ node.name = identifierName;
+ }
+ if (kind === 226 /* ImportSpecifier */ && checkIdentifierIsKeyword) {
+ // Report error identifier expected
+ parseErrorAtPosition(checkIdentifierStart, checkIdentifierEnd - checkIdentifierStart, ts.Diagnostics.Identifier_expected);
+ }
+ return finishNode(node);
+ }
+ function parseExportDeclaration(fullStart, decorators, modifiers) {
+ var node = createNode(228 /* ExportDeclaration */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ if (parseOptional(37 /* AsteriskToken */)) {
+ parseExpected(133 /* FromKeyword */);
+ node.moduleSpecifier = parseModuleSpecifier();
+ }
+ else {
+ node.exportClause = parseNamedImportsOrExports(229 /* NamedExports */);
+ // It is not uncommon to accidentally omit the 'from' keyword. Additionally, in editing scenarios,
+ // the 'from' keyword can be parsed as a named export when the export clause is unterminated (i.e. `export { from "moduleName";`)
+ // If we don't have a 'from' keyword, see if we have a string literal such that ASI won't take effect.
+ if (token === 133 /* FromKeyword */ || (token === 9 /* StringLiteral */ && !scanner.hasPrecedingLineBreak())) {
+ parseExpected(133 /* FromKeyword */);
+ node.moduleSpecifier = parseModuleSpecifier();
+ }
+ }
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function parseExportAssignment(fullStart, decorators, modifiers) {
+ var node = createNode(227 /* ExportAssignment */, fullStart);
+ node.decorators = decorators;
+ setModifiers(node, modifiers);
+ if (parseOptional(56 /* EqualsToken */)) {
+ node.isExportEquals = true;
+ }
+ else {
+ parseExpected(77 /* DefaultKeyword */);
+ }
+ node.expression = parseAssignmentExpressionOrHigher();
+ parseSemicolon();
+ return finishNode(node);
+ }
+ function processReferenceComments(sourceFile) {
+ var triviaScanner = ts.createScanner(sourceFile.languageVersion, /*skipTrivia*/ false, 0 /* Standard */, sourceText);
+ var referencedFiles = [];
+ var amdDependencies = [];
+ var amdModuleName;
+ // Keep scanning all the leading trivia in the file until we get to something that
+ // isn't trivia. Any single line comment will be analyzed to see if it is a
+ // reference comment.
+ while (true) {
+ var kind = triviaScanner.scan();
+ if (kind === 5 /* WhitespaceTrivia */ || kind === 4 /* NewLineTrivia */ || kind === 3 /* MultiLineCommentTrivia */) {
+ continue;
+ }
+ if (kind !== 2 /* SingleLineCommentTrivia */) {
+ break;
+ }
+ var range = { pos: triviaScanner.getTokenPos(), end: triviaScanner.getTextPos(), kind: triviaScanner.getToken() };
+ var comment = sourceText.substring(range.pos, range.end);
+ var referencePathMatchResult = ts.getFileReferenceFromReferencePath(comment, range);
+ if (referencePathMatchResult) {
+ var fileReference = referencePathMatchResult.fileReference;
+ sourceFile.hasNoDefaultLib = referencePathMatchResult.isNoDefaultLib;
+ var diagnosticMessage = referencePathMatchResult.diagnosticMessage;
+ if (fileReference) {
+ referencedFiles.push(fileReference);
+ }
+ if (diagnosticMessage) {
+ parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, diagnosticMessage));
+ }
+ }
+ else {
+ var amdModuleNameRegEx = /^\/\/\/\s*<amd-module\s+name\s*=\s*('|")(.+?)\1/gim;
+ var amdModuleNameMatchResult = amdModuleNameRegEx.exec(comment);
+ if (amdModuleNameMatchResult) {
+ if (amdModuleName) {
+ parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, ts.Diagnostics.An_AMD_module_cannot_have_multiple_name_assignments));
+ }
+ amdModuleName = amdModuleNameMatchResult[2];
+ }
+ var amdDependencyRegEx = /^\/\/\/\s*<amd-dependency\s/gim;
+ var pathRegex = /\spath\s*=\s*('|")(.+?)\1/gim;
+ var nameRegex = /\sname\s*=\s*('|")(.+?)\1/gim;
+ var amdDependencyMatchResult = amdDependencyRegEx.exec(comment);
+ if (amdDependencyMatchResult) {
+ var pathMatchResult = pathRegex.exec(comment);
+ var nameMatchResult = nameRegex.exec(comment);
+ if (pathMatchResult) {
+ var amdDependency = { path: pathMatchResult[2], name: nameMatchResult ? nameMatchResult[2] : undefined };
+ amdDependencies.push(amdDependency);
+ }
+ }
+ }
+ }
+ sourceFile.referencedFiles = referencedFiles;
+ sourceFile.amdDependencies = amdDependencies;
+ sourceFile.moduleName = amdModuleName;
+ }
+ function setExternalModuleIndicator(sourceFile) {
+ sourceFile.externalModuleIndicator = ts.forEach(sourceFile.statements, function (node) {
+ return node.flags & 1 /* Export */
+ || node.kind === 221 /* ImportEqualsDeclaration */ && node.moduleReference.kind === 232 /* ExternalModuleReference */
+ || node.kind === 222 /* ImportDeclaration */
+ || node.kind === 227 /* ExportAssignment */
+ || node.kind === 228 /* ExportDeclaration */
+ ? node
+ : undefined;
+ });
+ }
+ var ParsingContext;
+ (function (ParsingContext) {
+ ParsingContext[ParsingContext["SourceElements"] = 0] = "SourceElements";
+ ParsingContext[ParsingContext["BlockStatements"] = 1] = "BlockStatements";
+ ParsingContext[ParsingContext["SwitchClauses"] = 2] = "SwitchClauses";
+ ParsingContext[ParsingContext["SwitchClauseStatements"] = 3] = "SwitchClauseStatements";
+ ParsingContext[ParsingContext["TypeMembers"] = 4] = "TypeMembers";
+ ParsingContext[ParsingContext["ClassMembers"] = 5] = "ClassMembers";
+ ParsingContext[ParsingContext["EnumMembers"] = 6] = "EnumMembers";
+ ParsingContext[ParsingContext["HeritageClauseElement"] = 7] = "HeritageClauseElement";
+ ParsingContext[ParsingContext["VariableDeclarations"] = 8] = "VariableDeclarations";
+ ParsingContext[ParsingContext["ObjectBindingElements"] = 9] = "ObjectBindingElements";
+ ParsingContext[ParsingContext["ArrayBindingElements"] = 10] = "ArrayBindingElements";
+ ParsingContext[ParsingContext["ArgumentExpressions"] = 11] = "ArgumentExpressions";
+ ParsingContext[ParsingContext["ObjectLiteralMembers"] = 12] = "ObjectLiteralMembers";
+ ParsingContext[ParsingContext["JsxAttributes"] = 13] = "JsxAttributes";
+ ParsingContext[ParsingContext["JsxChildren"] = 14] = "JsxChildren";
+ ParsingContext[ParsingContext["ArrayLiteralMembers"] = 15] = "ArrayLiteralMembers";
+ ParsingContext[ParsingContext["Parameters"] = 16] = "Parameters";
+ ParsingContext[ParsingContext["TypeParameters"] = 17] = "TypeParameters";
+ ParsingContext[ParsingContext["TypeArguments"] = 18] = "TypeArguments";
+ ParsingContext[ParsingContext["TupleElementTypes"] = 19] = "TupleElementTypes";
+ ParsingContext[ParsingContext["HeritageClauses"] = 20] = "HeritageClauses";
+ ParsingContext[ParsingContext["ImportOrExportSpecifiers"] = 21] = "ImportOrExportSpecifiers";
+ ParsingContext[ParsingContext["JSDocFunctionParameters"] = 22] = "JSDocFunctionParameters";
+ ParsingContext[ParsingContext["JSDocTypeArguments"] = 23] = "JSDocTypeArguments";
+ ParsingContext[ParsingContext["JSDocRecordMembers"] = 24] = "JSDocRecordMembers";
+ ParsingContext[ParsingContext["JSDocTupleTypes"] = 25] = "JSDocTupleTypes";
+ ParsingContext[ParsingContext["Count"] = 26] = "Count"; // Number of parsing contexts
+ })(ParsingContext || (ParsingContext = {}));
+ var Tristate;
+ (function (Tristate) {
+ Tristate[Tristate["False"] = 0] = "False";
+ Tristate[Tristate["True"] = 1] = "True";
+ Tristate[Tristate["Unknown"] = 2] = "Unknown";
+ })(Tristate || (Tristate = {}));
+ var JSDocParser;
+ (function (JSDocParser) {
+ function isJSDocType() {
+ switch (token) {
+ case 37 /* AsteriskToken */:
+ case 53 /* QuestionToken */:
+ case 17 /* OpenParenToken */:
+ case 19 /* OpenBracketToken */:
+ case 49 /* ExclamationToken */:
+ case 15 /* OpenBraceToken */:
+ case 87 /* FunctionKeyword */:
+ case 22 /* DotDotDotToken */:
+ case 92 /* NewKeyword */:
+ case 97 /* ThisKeyword */:
+ return true;
+ }
+ return ts.tokenIsIdentifierOrKeyword(token);
+ }
+ JSDocParser.isJSDocType = isJSDocType;
+ function parseJSDocTypeExpressionForTests(content, start, length) {
+ initializeState("file.js", content, 2 /* Latest */, /*_syntaxCursor:*/ undefined);
+ var jsDocTypeExpression = parseJSDocTypeExpression(start, length);
+ var diagnostics = parseDiagnostics;
+ clearState();
+ return jsDocTypeExpression ? { jsDocTypeExpression: jsDocTypeExpression, diagnostics: diagnostics } : undefined;
+ }
+ JSDocParser.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
+ // Parses out a JSDoc type expression. The starting position should be right at the open
+ // curly in the type expression. Returns 'undefined' if it encounters any errors while parsing.
+ /* @internal */
+ function parseJSDocTypeExpression(start, length) {
+ scanner.setText(sourceText, start, length);
+ // Prime the first token for us to start processing.
+ token = nextToken();
+ var result = createNode(249 /* JSDocTypeExpression */);
+ parseExpected(15 /* OpenBraceToken */);
+ result.type = parseJSDocTopLevelType();
+ parseExpected(16 /* CloseBraceToken */);
+ fixupParentReferences(result);
+ return finishNode(result);
+ }
+ JSDocParser.parseJSDocTypeExpression = parseJSDocTypeExpression;
+ function parseJSDocTopLevelType() {
+ var type = parseJSDocType();
+ if (token === 47 /* BarToken */) {
+ var unionType = createNode(253 /* JSDocUnionType */, type.pos);
+ unionType.types = parseJSDocTypeList(type);
+ type = finishNode(unionType);
+ }
+ if (token === 56 /* EqualsToken */) {
+ var optionalType = createNode(260 /* JSDocOptionalType */, type.pos);
+ nextToken();
+ optionalType.type = type;
+ type = finishNode(optionalType);
+ }
+ return type;
+ }
+ function parseJSDocType() {
+ var type = parseBasicTypeExpression();
+ while (true) {
+ if (token === 19 /* OpenBracketToken */) {
+ var arrayType = createNode(252 /* JSDocArrayType */, type.pos);
+ arrayType.elementType = type;
+ nextToken();
+ parseExpected(20 /* CloseBracketToken */);
+ type = finishNode(arrayType);
+ }
+ else if (token === 53 /* QuestionToken */) {
+ var nullableType = createNode(255 /* JSDocNullableType */, type.pos);
+ nullableType.type = type;
+ nextToken();
+ type = finishNode(nullableType);
+ }
+ else if (token === 49 /* ExclamationToken */) {
+ var nonNullableType = createNode(256 /* JSDocNonNullableType */, type.pos);
+ nonNullableType.type = type;
+ nextToken();
+ type = finishNode(nonNullableType);
+ }
+ else {
+ break;
+ }
+ }
+ return type;
+ }
+ function parseBasicTypeExpression() {
+ switch (token) {
+ case 37 /* AsteriskToken */:
+ return parseJSDocAllType();
+ case 53 /* QuestionToken */:
+ return parseJSDocUnknownOrNullableType();
+ case 17 /* OpenParenToken */:
+ return parseJSDocUnionType();
+ case 19 /* OpenBracketToken */:
+ return parseJSDocTupleType();
+ case 49 /* ExclamationToken */:
+ return parseJSDocNonNullableType();
+ case 15 /* OpenBraceToken */:
+ return parseJSDocRecordType();
+ case 87 /* FunctionKeyword */:
+ return parseJSDocFunctionType();
+ case 22 /* DotDotDotToken */:
+ return parseJSDocVariadicType();
+ case 92 /* NewKeyword */:
+ return parseJSDocConstructorType();
+ case 97 /* ThisKeyword */:
+ return parseJSDocThisType();
+ case 117 /* AnyKeyword */:
+ case 130 /* StringKeyword */:
+ case 128 /* NumberKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ case 103 /* VoidKeyword */:
+ return parseTokenNode();
+ }
+ return parseJSDocTypeReference();
+ }
+ function parseJSDocThisType() {
+ var result = createNode(264 /* JSDocThisType */);
+ nextToken();
+ parseExpected(54 /* ColonToken */);
+ result.type = parseJSDocType();
+ return finishNode(result);
+ }
+ function parseJSDocConstructorType() {
+ var result = createNode(263 /* JSDocConstructorType */);
+ nextToken();
+ parseExpected(54 /* ColonToken */);
+ result.type = parseJSDocType();
+ return finishNode(result);
+ }
+ function parseJSDocVariadicType() {
+ var result = createNode(262 /* JSDocVariadicType */);
+ nextToken();
+ result.type = parseJSDocType();
+ return finishNode(result);
+ }
+ function parseJSDocFunctionType() {
+ var result = createNode(261 /* JSDocFunctionType */);
+ nextToken();
+ parseExpected(17 /* OpenParenToken */);
+ result.parameters = parseDelimitedList(22 /* JSDocFunctionParameters */, parseJSDocParameter);
+ checkForTrailingComma(result.parameters);
+ parseExpected(18 /* CloseParenToken */);
+ if (token === 54 /* ColonToken */) {
+ nextToken();
+ result.type = parseJSDocType();
+ }
+ return finishNode(result);
+ }
+ function parseJSDocParameter() {
+ var parameter = createNode(138 /* Parameter */);
+ parameter.type = parseJSDocType();
+ return finishNode(parameter);
+ }
+ function parseJSDocOptionalType(type) {
+ var result = createNode(260 /* JSDocOptionalType */, type.pos);
+ nextToken();
+ result.type = type;
+ return finishNode(result);
+ }
+ function parseJSDocTypeReference() {
+ var result = createNode(259 /* JSDocTypeReference */);
+ result.name = parseSimplePropertyName();
+ while (parseOptional(21 /* DotToken */)) {
+ if (token === 25 /* LessThanToken */) {
+ result.typeArguments = parseTypeArguments();
+ break;
+ }
+ else {
+ result.name = parseQualifiedName(result.name);
+ }
+ }
+ return finishNode(result);
+ }
+ function parseTypeArguments() {
+ // Move past the <
+ nextToken();
+ var typeArguments = parseDelimitedList(23 /* JSDocTypeArguments */, parseJSDocType);
+ checkForTrailingComma(typeArguments);
+ checkForEmptyTypeArgumentList(typeArguments);
+ parseExpected(27 /* GreaterThanToken */);
+ return typeArguments;
+ }
+ function checkForEmptyTypeArgumentList(typeArguments) {
+ if (parseDiagnostics.length === 0 && typeArguments && typeArguments.length === 0) {
+ var start = typeArguments.pos - "<".length;
+ var end = ts.skipTrivia(sourceText, typeArguments.end) + ">".length;
+ return parseErrorAtPosition(start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
+ }
+ }
+ function parseQualifiedName(left) {
+ var result = createNode(135 /* QualifiedName */, left.pos);
+ result.left = left;
+ result.right = parseIdentifierName();
+ return finishNode(result);
+ }
+ function parseJSDocRecordType() {
+ var result = createNode(257 /* JSDocRecordType */);
+ nextToken();
+ result.members = parseDelimitedList(24 /* JSDocRecordMembers */, parseJSDocRecordMember);
+ checkForTrailingComma(result.members);
+ parseExpected(16 /* CloseBraceToken */);
+ return finishNode(result);
+ }
+ function parseJSDocRecordMember() {
+ var result = createNode(258 /* JSDocRecordMember */);
+ result.name = parseSimplePropertyName();
+ if (token === 54 /* ColonToken */) {
+ nextToken();
+ result.type = parseJSDocType();
+ }
+ return finishNode(result);
+ }
+ function parseJSDocNonNullableType() {
+ var result = createNode(256 /* JSDocNonNullableType */);
+ nextToken();
+ result.type = parseJSDocType();
+ return finishNode(result);
+ }
+ function parseJSDocTupleType() {
+ var result = createNode(254 /* JSDocTupleType */);
+ nextToken();
+ result.types = parseDelimitedList(25 /* JSDocTupleTypes */, parseJSDocType);
+ checkForTrailingComma(result.types);
+ parseExpected(20 /* CloseBracketToken */);
+ return finishNode(result);
+ }
+ function checkForTrailingComma(list) {
+ if (parseDiagnostics.length === 0 && list.hasTrailingComma) {
+ var start = list.end - ",".length;
+ parseErrorAtPosition(start, ",".length, ts.Diagnostics.Trailing_comma_not_allowed);
+ }
+ }
+ function parseJSDocUnionType() {
+ var result = createNode(253 /* JSDocUnionType */);
+ nextToken();
+ result.types = parseJSDocTypeList(parseJSDocType());
+ parseExpected(18 /* CloseParenToken */);
+ return finishNode(result);
+ }
+ function parseJSDocTypeList(firstType) {
+ ts.Debug.assert(!!firstType);
+ var types = [];
+ types.pos = firstType.pos;
+ types.push(firstType);
+ while (parseOptional(47 /* BarToken */)) {
+ types.push(parseJSDocType());
+ }
+ types.end = scanner.getStartPos();
+ return types;
+ }
+ function parseJSDocAllType() {
+ var result = createNode(250 /* JSDocAllType */);
+ nextToken();
+ return finishNode(result);
+ }
+ function parseJSDocUnknownOrNullableType() {
+ var pos = scanner.getStartPos();
+ // skip the ?
+ nextToken();
+ // Need to lookahead to decide if this is a nullable or unknown type.
+ // Here are cases where we'll pick the unknown type:
+ //
+ // Foo(?,
+ // { a: ? }
+ // Foo(?)
+ // Foo<?>
+ // Foo(?=
+ // (?|
+ if (token === 24 /* CommaToken */ ||
+ token === 16 /* CloseBraceToken */ ||
+ token === 18 /* CloseParenToken */ ||
+ token === 27 /* GreaterThanToken */ ||
+ token === 56 /* EqualsToken */ ||
+ token === 47 /* BarToken */) {
+ var result = createNode(251 /* JSDocUnknownType */, pos);
+ return finishNode(result);
+ }
+ else {
+ var result = createNode(255 /* JSDocNullableType */, pos);
+ result.type = parseJSDocType();
+ return finishNode(result);
+ }
+ }
+ function parseIsolatedJSDocComment(content, start, length) {
+ initializeState("file.js", content, 2 /* Latest */, /*_syntaxCursor:*/ undefined);
+ var jsDocComment = parseJSDocComment(/*parent:*/ undefined, start, length);
+ var diagnostics = parseDiagnostics;
+ clearState();
+ return jsDocComment ? { jsDocComment: jsDocComment, diagnostics: diagnostics } : undefined;
+ }
+ JSDocParser.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
+ function parseJSDocComment(parent, start, length) {
+ var comment = parseJSDocCommentWorker(start, length);
+ if (comment) {
+ fixupParentReferences(comment);
+ comment.parent = parent;
+ }
+ return comment;
+ }
+ JSDocParser.parseJSDocComment = parseJSDocComment;
+ function parseJSDocCommentWorker(start, length) {
+ var content = sourceText;
+ start = start || 0;
+ var end = length === undefined ? content.length : start + length;
+ length = end - start;
+ ts.Debug.assert(start >= 0);
+ ts.Debug.assert(start <= end);
+ ts.Debug.assert(end <= content.length);
+ var tags;
+ var pos;
+ // NOTE(cyrusn): This is essentially a handwritten scanner for JSDocComments. I
+ // considered using an actual Scanner, but this would complicate things. The
+ // scanner would need to know it was in a Doc Comment. Otherwise, it would then
+ // produce comments *inside* the doc comment. In the end it was just easier to
+ // write a simple scanner rather than go that route.
+ if (length >= "/** */".length) {
+ if (content.charCodeAt(start) === 47 /* slash */ &&
+ content.charCodeAt(start + 1) === 42 /* asterisk */ &&
+ content.charCodeAt(start + 2) === 42 /* asterisk */ &&
+ content.charCodeAt(start + 3) !== 42 /* asterisk */) {
+ // Initially we can parse out a tag. We also have seen a starting asterisk.
+ // This is so that /** * @type */ doesn't parse.
+ var canParseTag = true;
+ var seenAsterisk = true;
+ for (pos = start + "/**".length; pos < end;) {
+ var ch = content.charCodeAt(pos);
+ pos++;
+ if (ch === 64 /* at */ && canParseTag) {
+ parseTag();
+ // Once we parse out a tag, we cannot keep parsing out tags on this line.
+ canParseTag = false;
+ continue;
+ }
+ if (ts.isLineBreak(ch)) {
+ // After a line break, we can parse a tag, and we haven't seen as asterisk
+ // on the next line yet.
+ canParseTag = true;
+ seenAsterisk = false;
+ continue;
+ }
+ if (ts.isWhiteSpace(ch)) {
+ // Whitespace doesn't affect any of our parsing.
+ continue;
+ }
+ // Ignore the first asterisk on a line.
+ if (ch === 42 /* asterisk */) {
+ if (seenAsterisk) {
+ // If we've already seen an asterisk, then we can no longer parse a tag
+ // on this line.
+ canParseTag = false;
+ }
+ seenAsterisk = true;
+ continue;
+ }
+ // Anything else is doc comment text. We can't do anything with it. Because it
+ // wasn't a tag, we can no longer parse a tag on this line until we hit the next
+ // line break.
+ canParseTag = false;
+ }
+ }
+ }
+ return createJSDocComment();
+ function createJSDocComment() {
+ if (!tags) {
+ return undefined;
+ }
+ var result = createNode(265 /* JSDocComment */, start);
+ result.tags = tags;
+ return finishNode(result, end);
+ }
+ function skipWhitespace() {
+ while (pos < end && ts.isWhiteSpace(content.charCodeAt(pos))) {
+ pos++;
+ }
+ }
+ function parseTag() {
+ ts.Debug.assert(content.charCodeAt(pos - 1) === 64 /* at */);
+ var atToken = createNode(55 /* AtToken */, pos - 1);
+ atToken.end = pos;
+ var tagName = scanIdentifier();
+ if (!tagName) {
+ return;
+ }
+ var tag = handleTag(atToken, tagName) || handleUnknownTag(atToken, tagName);
+ addTag(tag);
+ }
+ function handleTag(atToken, tagName) {
+ if (tagName) {
+ switch (tagName.text) {
+ case "param":
+ return handleParamTag(atToken, tagName);
+ case "return":
+ case "returns":
+ return handleReturnTag(atToken, tagName);
+ case "template":
+ return handleTemplateTag(atToken, tagName);
+ case "type":
+ return handleTypeTag(atToken, tagName);
+ }
+ }
+ return undefined;
+ }
+ function handleUnknownTag(atToken, tagName) {
+ var result = createNode(266 /* JSDocTag */, atToken.pos);
+ result.atToken = atToken;
+ result.tagName = tagName;
+ return finishNode(result, pos);
+ }
+ function addTag(tag) {
+ if (tag) {
+ if (!tags) {
+ tags = [];
+ tags.pos = tag.pos;
+ }
+ tags.push(tag);
+ tags.end = tag.end;
+ }
+ }
+ function tryParseTypeExpression() {
+ skipWhitespace();
+ if (content.charCodeAt(pos) !== 123 /* openBrace */) {
+ return undefined;
+ }
+ var typeExpression = parseJSDocTypeExpression(pos, end - pos);
+ pos = typeExpression.end;
+ return typeExpression;
+ }
+ function handleParamTag(atToken, tagName) {
+ var typeExpression = tryParseTypeExpression();
+ skipWhitespace();
+ var name;
+ var isBracketed;
+ if (content.charCodeAt(pos) === 91 /* openBracket */) {
+ pos++;
+ skipWhitespace();
+ name = scanIdentifier();
+ isBracketed = true;
+ }
+ else {
+ name = scanIdentifier();
+ }
+ if (!name) {
+ parseErrorAtPosition(pos, 0, ts.Diagnostics.Identifier_expected);
+ }
+ var preName, postName;
+ if (typeExpression) {
+ postName = name;
+ }
+ else {
+ preName = name;
+ }
+ if (!typeExpression) {
+ typeExpression = tryParseTypeExpression();
+ }
+ var result = createNode(267 /* JSDocParameterTag */, atToken.pos);
+ result.atToken = atToken;
+ result.tagName = tagName;
+ result.preParameterName = preName;
+ result.typeExpression = typeExpression;
+ result.postParameterName = postName;
+ result.isBracketed = isBracketed;
+ return finishNode(result, pos);
+ }
+ function handleReturnTag(atToken, tagName) {
+ if (ts.forEach(tags, function (t) { return t.kind === 268 /* JSDocReturnTag */; })) {
+ parseErrorAtPosition(tagName.pos, pos - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
+ }
+ var result = createNode(268 /* JSDocReturnTag */, atToken.pos);
+ result.atToken = atToken;
+ result.tagName = tagName;
+ result.typeExpression = tryParseTypeExpression();
+ return finishNode(result, pos);
+ }
+ function handleTypeTag(atToken, tagName) {
+ if (ts.forEach(tags, function (t) { return t.kind === 269 /* JSDocTypeTag */; })) {
+ parseErrorAtPosition(tagName.pos, pos - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
+ }
+ var result = createNode(269 /* JSDocTypeTag */, atToken.pos);
+ result.atToken = atToken;
+ result.tagName = tagName;
+ result.typeExpression = tryParseTypeExpression();
+ return finishNode(result, pos);
+ }
+ function handleTemplateTag(atToken, tagName) {
+ if (ts.forEach(tags, function (t) { return t.kind === 270 /* JSDocTemplateTag */; })) {
+ parseErrorAtPosition(tagName.pos, pos - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
+ }
+ var typeParameters = [];
+ typeParameters.pos = pos;
+ while (true) {
+ skipWhitespace();
+ var startPos = pos;
+ var name_8 = scanIdentifier();
+ if (!name_8) {
+ parseErrorAtPosition(startPos, 0, ts.Diagnostics.Identifier_expected);
+ return undefined;
+ }
+ var typeParameter = createNode(137 /* TypeParameter */, name_8.pos);
+ typeParameter.name = name_8;
+ finishNode(typeParameter, pos);
+ typeParameters.push(typeParameter);
+ skipWhitespace();
+ if (content.charCodeAt(pos) !== 44 /* comma */) {
+ break;
+ }
+ pos++;
+ }
+ typeParameters.end = pos;
+ var result = createNode(270 /* JSDocTemplateTag */, atToken.pos);
+ result.atToken = atToken;
+ result.tagName = tagName;
+ result.typeParameters = typeParameters;
+ return finishNode(result, pos);
+ }
+ function scanIdentifier() {
+ var startPos = pos;
+ for (; pos < end; pos++) {
+ var ch = content.charCodeAt(pos);
+ if (pos === startPos && ts.isIdentifierStart(ch, 2 /* Latest */)) {
+ continue;
+ }
+ else if (pos > startPos && ts.isIdentifierPart(ch, 2 /* Latest */)) {
+ continue;
+ }
+ break;
+ }
+ if (startPos === pos) {
+ return undefined;
+ }
+ var result = createNode(69 /* Identifier */, startPos);
+ result.text = content.substring(startPos, pos);
+ return finishNode(result, pos);
+ }
+ }
+ JSDocParser.parseJSDocCommentWorker = parseJSDocCommentWorker;
+ })(JSDocParser = Parser.JSDocParser || (Parser.JSDocParser = {}));
+ })(Parser || (Parser = {}));
+ var IncrementalParser;
+ (function (IncrementalParser) {
+ function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
+ aggressiveChecks = aggressiveChecks || ts.Debug.shouldAssert(2 /* Aggressive */);
+ checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks);
+ if (ts.textChangeRangeIsUnchanged(textChangeRange)) {
+ // if the text didn't change, then we can just return our current source file as-is.
+ return sourceFile;
+ }
+ if (sourceFile.statements.length === 0) {
+ // If we don't have any statements in the current source file, then there's no real
+ // way to incrementally parse. So just do a full parse instead.
+ return Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, /*syntaxCursor*/ undefined, /*setNodeParents*/ true);
+ }
+ // Make sure we're not trying to incrementally update a source file more than once. Once
+ // we do an update the original source file is considered unusbale from that point onwards.
+ //
+ // This is because we do incremental parsing in-place. i.e. we take nodes from the old
+ // tree and give them new positions and parents. From that point on, trusting the old
+ // tree at all is not possible as far too much of it may violate invariants.
+ var incrementalSourceFile = sourceFile;
+ ts.Debug.assert(!incrementalSourceFile.hasBeenIncrementallyParsed);
+ incrementalSourceFile.hasBeenIncrementallyParsed = true;
+ var oldText = sourceFile.text;
+ var syntaxCursor = createSyntaxCursor(sourceFile);
+ // Make the actual change larger so that we know to reparse anything whose lookahead
+ // might have intersected the change.
+ var changeRange = extendToAffectedRange(sourceFile, textChangeRange);
+ checkChangeRange(sourceFile, newText, changeRange, aggressiveChecks);
+ // Ensure that extending the affected range only moved the start of the change range
+ // earlier in the file.
+ ts.Debug.assert(changeRange.span.start <= textChangeRange.span.start);
+ ts.Debug.assert(ts.textSpanEnd(changeRange.span) === ts.textSpanEnd(textChangeRange.span));
+ ts.Debug.assert(ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)) === ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)));
+ // The is the amount the nodes after the edit range need to be adjusted. It can be
+ // positive (if the edit added characters), negative (if the edit deleted characters)
+ // or zero (if this was a pure overwrite with nothing added/removed).
+ var delta = ts.textChangeRangeNewSpan(changeRange).length - changeRange.span.length;
+ // If we added or removed characters during the edit, then we need to go and adjust all
+ // the nodes after the edit. Those nodes may move forward (if we inserted chars) or they
+ // may move backward (if we deleted chars).
+ //
+ // Doing this helps us out in two ways. First, it means that any nodes/tokens we want
+ // to reuse are already at the appropriate position in the new text. That way when we
+ // reuse them, we don't have to figure out if they need to be adjusted. Second, it makes
+ // it very easy to determine if we can reuse a node. If the node's position is at where
+ // we are in the text, then we can reuse it. Otherwise we can't. If the node's position
+ // is ahead of us, then we'll need to rescan tokens. If the node's position is behind
+ // us, then we'll need to skip it or crumble it as appropriate
+ //
+ // We will also adjust the positions of nodes that intersect the change range as well.
+ // By doing this, we ensure that all the positions in the old tree are consistent, not
+ // just the positions of nodes entirely before/after the change range. By being
+ // consistent, we can then easily map from positions to nodes in the old tree easily.
+ //
+ // Also, mark any syntax elements that intersect the changed span. We know, up front,
+ // that we cannot reuse these elements.
+ updateTokenPositionsAndMarkElements(incrementalSourceFile, changeRange.span.start, ts.textSpanEnd(changeRange.span), ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)), delta, oldText, newText, aggressiveChecks);
+ // Now that we've set up our internal incremental state just proceed and parse the
+ // source file in the normal fashion. When possible the parser will retrieve and
+ // reuse nodes from the old tree.
+ //
+ // Note: passing in 'true' for setNodeParents is very important. When incrementally
+ // parsing, we will be reusing nodes from the old tree, and placing it into new
+ // parents. If we don't set the parents now, we'll end up with an observably
+ // inconsistent tree. Setting the parents on the new tree should be very fast. We
+ // will immediately bail out of walking any subtrees when we can see that their parents
+ // are already correct.
+ var result = Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, syntaxCursor, /* setParentNode */ true);
+ return result;
+ }
+ IncrementalParser.updateSourceFile = updateSourceFile;
+ function moveElementEntirelyPastChangeRange(element, isArray, delta, oldText, newText, aggressiveChecks) {
+ if (isArray) {
+ visitArray(element);
+ }
+ else {
+ visitNode(element);
+ }
+ return;
+ function visitNode(node) {
+ var text = "";
+ if (aggressiveChecks && shouldCheckNode(node)) {
+ text = oldText.substring(node.pos, node.end);
+ }
+ // Ditch any existing LS children we may have created. This way we can avoid
+ // moving them forward.
+ if (node._children) {
+ node._children = undefined;
+ }
+ if (node.jsDocComment) {
+ node.jsDocComment = undefined;
+ }
+ node.pos += delta;
+ node.end += delta;
+ if (aggressiveChecks && shouldCheckNode(node)) {
+ ts.Debug.assert(text === newText.substring(node.pos, node.end));
+ }
+ forEachChild(node, visitNode, visitArray);
+ checkNodePositions(node, aggressiveChecks);
+ }
+ function visitArray(array) {
+ array._children = undefined;
+ array.pos += delta;
+ array.end += delta;
+ for (var _i = 0; _i < array.length; _i++) {
+ var node = array[_i];
+ visitNode(node);
+ }
+ }
+ }
+ function shouldCheckNode(node) {
+ switch (node.kind) {
+ case 9 /* StringLiteral */:
+ case 8 /* NumericLiteral */:
+ case 69 /* Identifier */:
+ return true;
+ }
+ return false;
+ }
+ function adjustIntersectingElement(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta) {
+ ts.Debug.assert(element.end >= changeStart, "Adjusting an element that was entirely before the change range");
+ ts.Debug.assert(element.pos <= changeRangeOldEnd, "Adjusting an element that was entirely after the change range");
+ ts.Debug.assert(element.pos <= element.end);
+ // We have an element that intersects the change range in some way. It may have its
+ // start, or its end (or both) in the changed range. We want to adjust any part
+ // that intersects such that the final tree is in a consistent state. i.e. all
+ // chlidren have spans within the span of their parent, and all siblings are ordered
+ // properly.
+ // We may need to update both the 'pos' and the 'end' of the element.
+ // If the 'pos' is before the start of the change, then we don't need to touch it.
+ // If it isn't, then the 'pos' must be inside the change. How we update it will
+ // depend if delta is positive or negative. If delta is positive then we have
+ // something like:
+ //
+ // -------------------AAA-----------------
+ // -------------------BBBCCCCCCC-----------------
+ //
+ // In this case, we consider any node that started in the change range to still be
+ // starting at the same position.
+ //
+ // however, if the delta is negative, then we instead have something like this:
+ //
+ // -------------------XXXYYYYYYY-----------------
+ // -------------------ZZZ-----------------
+ //
+ // In this case, any element that started in the 'X' range will keep its position.
+ // However any element htat started after that will have their pos adjusted to be
+ // at the end of the new range. i.e. any node that started in the 'Y' range will
+ // be adjusted to have their start at the end of the 'Z' range.
+ //
+ // The element will keep its position if possible. Or Move backward to the new-end
+ // if it's in the 'Y' range.
+ element.pos = Math.min(element.pos, changeRangeNewEnd);
+ // If the 'end' is after the change range, then we always adjust it by the delta
+ // amount. However, if the end is in the change range, then how we adjust it
+ // will depend on if delta is positive or negative. If delta is positive then we
+ // have something like:
+ //
+ // -------------------AAA-----------------
+ // -------------------BBBCCCCCCC-----------------
+ //
+ // In this case, we consider any node that ended inside the change range to keep its
+ // end position.
+ //
+ // however, if the delta is negative, then we instead have something like this:
+ //
+ // -------------------XXXYYYYYYY-----------------
+ // -------------------ZZZ-----------------
+ //
+ // In this case, any element that ended in the 'X' range will keep its position.
+ // However any element htat ended after that will have their pos adjusted to be
+ // at the end of the new range. i.e. any node that ended in the 'Y' range will
+ // be adjusted to have their end at the end of the 'Z' range.
+ if (element.end >= changeRangeOldEnd) {
+ // Element ends after the change range. Always adjust the end pos.
+ element.end += delta;
+ }
+ else {
+ // Element ends in the change range. The element will keep its position if
+ // possible. Or Move backward to the new-end if it's in the 'Y' range.
+ element.end = Math.min(element.end, changeRangeNewEnd);
+ }
+ ts.Debug.assert(element.pos <= element.end);
+ if (element.parent) {
+ ts.Debug.assert(element.pos >= element.parent.pos);
+ ts.Debug.assert(element.end <= element.parent.end);
+ }
+ }
+ function checkNodePositions(node, aggressiveChecks) {
+ if (aggressiveChecks) {
+ var pos = node.pos;
+ forEachChild(node, function (child) {
+ ts.Debug.assert(child.pos >= pos);
+ pos = child.end;
+ });
+ ts.Debug.assert(pos <= node.end);
+ }
+ }
+ function updateTokenPositionsAndMarkElements(sourceFile, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta, oldText, newText, aggressiveChecks) {
+ visitNode(sourceFile);
+ return;
+ function visitNode(child) {
+ ts.Debug.assert(child.pos <= child.end);
+ if (child.pos > changeRangeOldEnd) {
+ // Node is entirely past the change range. We need to move both its pos and
+ // end, forward or backward appropriately.
+ moveElementEntirelyPastChangeRange(child, /*isArray*/ false, delta, oldText, newText, aggressiveChecks);
+ return;
+ }
+ // Check if the element intersects the change range. If it does, then it is not
+ // reusable. Also, we'll need to recurse to see what constituent portions we may
+ // be able to use.
+ var fullEnd = child.end;
+ if (fullEnd >= changeStart) {
+ child.intersectsChange = true;
+ child._children = undefined;
+ // Adjust the pos or end (or both) of the intersecting element accordingly.
+ adjustIntersectingElement(child, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
+ forEachChild(child, visitNode, visitArray);
+ checkNodePositions(child, aggressiveChecks);
+ return;
+ }
+ // Otherwise, the node is entirely before the change range. No need to do anything with it.
+ ts.Debug.assert(fullEnd < changeStart);
+ }
+ function visitArray(array) {
+ ts.Debug.assert(array.pos <= array.end);
+ if (array.pos > changeRangeOldEnd) {
+ // Array is entirely after the change range. We need to move it, and move any of
+ // its children.
+ moveElementEntirelyPastChangeRange(array, /*isArray*/ true, delta, oldText, newText, aggressiveChecks);
+ return;
+ }
+ // Check if the element intersects the change range. If it does, then it is not
+ // reusable. Also, we'll need to recurse to see what constituent portions we may
+ // be able to use.
+ var fullEnd = array.end;
+ if (fullEnd >= changeStart) {
+ array.intersectsChange = true;
+ array._children = undefined;
+ // Adjust the pos or end (or both) of the intersecting array accordingly.
+ adjustIntersectingElement(array, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
+ for (var _i = 0; _i < array.length; _i++) {
+ var node = array[_i];
+ visitNode(node);
+ }
+ return;
+ }
+ // Otherwise, the array is entirely before the change range. No need to do anything with it.
+ ts.Debug.assert(fullEnd < changeStart);
+ }
+ }
+ function extendToAffectedRange(sourceFile, changeRange) {
+ // Consider the following code:
+ // void foo() { /; }
+ //
+ // If the text changes with an insertion of / just before the semicolon then we end up with:
+ // void foo() { //; }
+ //
+ // If we were to just use the changeRange a is, then we would not rescan the { token
+ // (as it does not intersect the actual original change range). Because an edit may
+ // change the token touching it, we actually need to look back *at least* one token so
+ // that the prior token sees that change.
+ var maxLookahead = 1;
+ var start = changeRange.span.start;
+ // the first iteration aligns us with the change start. subsequent iteration move us to
+ // the left by maxLookahead tokens. We only need to do this as long as we're not at the
+ // start of the tree.
+ for (var i = 0; start > 0 && i <= maxLookahead; i++) {
+ var nearestNode = findNearestNodeStartingBeforeOrAtPosition(sourceFile, start);
+ ts.Debug.assert(nearestNode.pos <= start);
+ var position = nearestNode.pos;
+ start = Math.max(0, position - 1);
+ }
+ var finalSpan = ts.createTextSpanFromBounds(start, ts.textSpanEnd(changeRange.span));
+ var finalLength = changeRange.newLength + (changeRange.span.start - start);
+ return ts.createTextChangeRange(finalSpan, finalLength);
+ }
+ function findNearestNodeStartingBeforeOrAtPosition(sourceFile, position) {
+ var bestResult = sourceFile;
+ var lastNodeEntirelyBeforePosition;
+ forEachChild(sourceFile, visit);
+ if (lastNodeEntirelyBeforePosition) {
+ var lastChildOfLastEntireNodeBeforePosition = getLastChild(lastNodeEntirelyBeforePosition);
+ if (lastChildOfLastEntireNodeBeforePosition.pos > bestResult.pos) {
+ bestResult = lastChildOfLastEntireNodeBeforePosition;
+ }
+ }
+ return bestResult;
+ function getLastChild(node) {
+ while (true) {
+ var lastChild = getLastChildWorker(node);
+ if (lastChild) {
+ node = lastChild;
+ }
+ else {
+ return node;
+ }
+ }
+ }
+ function getLastChildWorker(node) {
+ var last = undefined;
+ forEachChild(node, function (child) {
+ if (ts.nodeIsPresent(child)) {
+ last = child;
+ }
+ });
+ return last;
+ }
+ function visit(child) {
+ if (ts.nodeIsMissing(child)) {
+ // Missing nodes are effectively invisible to us. We never even consider them
+ // When trying to find the nearest node before us.
+ return;
+ }
+ // If the child intersects this position, then this node is currently the nearest
+ // node that starts before the position.
+ if (child.pos <= position) {
+ if (child.pos >= bestResult.pos) {
+ // This node starts before the position, and is closer to the position than
+ // the previous best node we found. It is now the new best node.
+ bestResult = child;
+ }
+ // Now, the node may overlap the position, or it may end entirely before the
+ // position. If it overlaps with the position, then either it, or one of its
+ // children must be the nearest node before the position. So we can just
+ // recurse into this child to see if we can find something better.
+ if (position < child.end) {
+ // The nearest node is either this child, or one of the children inside
+ // of it. We've already marked this child as the best so far. Recurse
+ // in case one of the children is better.
+ forEachChild(child, visit);
+ // Once we look at the children of this node, then there's no need to
+ // continue any further.
+ return true;
+ }
+ else {
+ ts.Debug.assert(child.end <= position);
+ // The child ends entirely before this position. Say you have the following
+ // (where $ is the position)
+ //
+ // <complex expr 1> ? <complex expr 2> $ : <...> <...>
+ //
+ // We would want to find the nearest preceding node in "complex expr 2".
+ // To support that, we keep track of this node, and once we're done searching
+ // for a best node, we recurse down this node to see if we can find a good
+ // result in it.
+ //
+ // This approach allows us to quickly skip over nodes that are entirely
+ // before the position, while still allowing us to find any nodes in the
+ // last one that might be what we want.
+ lastNodeEntirelyBeforePosition = child;
+ }
+ }
+ else {
+ ts.Debug.assert(child.pos > position);
+ // We're now at a node that is entirely past the position we're searching for.
+ // This node (and all following nodes) could never contribute to the result,
+ // so just skip them by returning 'true' here.
+ return true;
+ }
+ }
+ }
+ function checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks) {
+ var oldText = sourceFile.text;
+ if (textChangeRange) {
+ ts.Debug.assert((oldText.length - textChangeRange.span.length + textChangeRange.newLength) === newText.length);
+ if (aggressiveChecks || ts.Debug.shouldAssert(3 /* VeryAggressive */)) {
+ var oldTextPrefix = oldText.substr(0, textChangeRange.span.start);
+ var newTextPrefix = newText.substr(0, textChangeRange.span.start);
+ ts.Debug.assert(oldTextPrefix === newTextPrefix);
+ var oldTextSuffix = oldText.substring(ts.textSpanEnd(textChangeRange.span), oldText.length);
+ var newTextSuffix = newText.substring(ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)), newText.length);
+ ts.Debug.assert(oldTextSuffix === newTextSuffix);
+ }
+ }
+ }
+ function createSyntaxCursor(sourceFile) {
+ var currentArray = sourceFile.statements;
+ var currentArrayIndex = 0;
+ ts.Debug.assert(currentArrayIndex < currentArray.length);
+ var current = currentArray[currentArrayIndex];
+ var lastQueriedPosition = -1 /* Value */;
+ return {
+ currentNode: function (position) {
+ // Only compute the current node if the position is different than the last time
+ // we were asked. The parser commonly asks for the node at the same position
+ // twice. Once to know if can read an appropriate list element at a certain point,
+ // and then to actually read and consume the node.
+ if (position !== lastQueriedPosition) {
+ // Much of the time the parser will need the very next node in the array that
+ // we just returned a node from.So just simply check for that case and move
+ // forward in the array instead of searching for the node again.
+ if (current && current.end === position && currentArrayIndex < (currentArray.length - 1)) {
+ currentArrayIndex++;
+ current = currentArray[currentArrayIndex];
+ }
+ // If we don't have a node, or the node we have isn't in the right position,
+ // then try to find a viable node at the position requested.
+ if (!current || current.pos !== position) {
+ findHighestListElementThatStartsAtPosition(position);
+ }
+ }
+ // Cache this query so that we don't do any extra work if the parser calls back
+ // into us. Note: this is very common as the parser will make pairs of calls like
+ // 'isListElement -> parseListElement'. If we were unable to find a node when
+ // called with 'isListElement', we don't want to redo the work when parseListElement
+ // is called immediately after.
+ lastQueriedPosition = position;
+ // Either we don'd have a node, or we have a node at the position being asked for.
+ ts.Debug.assert(!current || current.pos === position);
+ return current;
+ }
+ };
+ // Finds the highest element in the tree we can find that starts at the provided position.
+ // The element must be a direct child of some node list in the tree. This way after we
+ // return it, we can easily return its next sibling in the list.
+ function findHighestListElementThatStartsAtPosition(position) {
+ // Clear out any cached state about the last node we found.
+ currentArray = undefined;
+ currentArrayIndex = -1 /* Value */;
+ current = undefined;
+ // Recurse into the source file to find the highest node at this position.
+ forEachChild(sourceFile, visitNode, visitArray);
+ return;
+ function visitNode(node) {
+ if (position >= node.pos && position < node.end) {
+ // Position was within this node. Keep searching deeper to find the node.
+ forEachChild(node, visitNode, visitArray);
+ // don't procede any futher in the search.
+ return true;
+ }
+ // position wasn't in this node, have to keep searching.
+ return false;
+ }
+ function visitArray(array) {
+ if (position >= array.pos && position < array.end) {
+ // position was in this array. Search through this array to see if we find a
+ // viable element.
+ for (var i = 0, n = array.length; i < n; i++) {
+ var child = array[i];
+ if (child) {
+ if (child.pos === position) {
+ // Found the right node. We're done.
+ currentArray = array;
+ currentArrayIndex = i;
+ current = child;
+ return true;
+ }
+ else {
+ if (child.pos < position && position < child.end) {
+ // Position in somewhere within this child. Search in it and
+ // stop searching in this array.
+ forEachChild(child, visitNode, visitArray);
+ return true;
+ }
+ }
+ }
+ }
+ }
+ // position wasn't in this array, have to keep searching.
+ return false;
+ }
+ }
+ }
+ var InvalidPosition;
+ (function (InvalidPosition) {
+ InvalidPosition[InvalidPosition["Value"] = -1] = "Value";
+ })(InvalidPosition || (InvalidPosition = {}));
+ })(IncrementalParser || (IncrementalParser = {}));
+})(ts || (ts = {}));
+/// <reference path="binder.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ var nextSymbolId = 1;
+ var nextNodeId = 1;
+ var nextMergeId = 1;
+ function getNodeId(node) {
+ if (!node.id)
+ node.id = nextNodeId++;
+ return node.id;
+ }
+ ts.getNodeId = getNodeId;
+ ts.checkTime = 0;
+ function getSymbolId(symbol) {
+ if (!symbol.id) {
+ symbol.id = nextSymbolId++;
+ }
+ return symbol.id;
+ }
+ ts.getSymbolId = getSymbolId;
+ function createTypeChecker(host, produceDiagnostics) {
+ // Cancellation that controls whether or not we can cancel in the middle of type checking.
+ // In general cancelling is *not* safe for the type checker. We might be in the middle of
+ // computing something, and we will leave our internals in an inconsistent state. Callers
+ // who set the cancellation token should catch if a cancellation exception occurs, and
+ // should throw away and create a new TypeChecker.
+ //
+ // Currently we only support setting the cancellation token when getting diagnostics. This
+ // is because diagnostics can be quite expensive, and we want to allow hosts to bail out if
+ // they no longer need the information (for example, if the user started editing again).
+ var cancellationToken;
+ var Symbol = ts.objectAllocator.getSymbolConstructor();
+ var Type = ts.objectAllocator.getTypeConstructor();
+ var Signature = ts.objectAllocator.getSignatureConstructor();
+ var typeCount = 0;
+ var symbolCount = 0;
+ var emptyArray = [];
+ var emptySymbols = {};
+ var compilerOptions = host.getCompilerOptions();
+ var languageVersion = compilerOptions.target || 0 /* ES3 */;
+ var modulekind = compilerOptions.module ? compilerOptions.module : languageVersion === 2 /* ES6 */ ? 5 /* ES6 */ : 0 /* None */;
+ var emitResolver = createResolver();
+ var undefinedSymbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "undefined");
+ var argumentsSymbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "arguments");
+ var checker = {
+ getNodeCount: function () { return ts.sum(host.getSourceFiles(), "nodeCount"); },
+ getIdentifierCount: function () { return ts.sum(host.getSourceFiles(), "identifierCount"); },
+ getSymbolCount: function () { return ts.sum(host.getSourceFiles(), "symbolCount") + symbolCount; },
+ getTypeCount: function () { return typeCount; },
+ isUndefinedSymbol: function (symbol) { return symbol === undefinedSymbol; },
+ isArgumentsSymbol: function (symbol) { return symbol === argumentsSymbol; },
+ getDiagnostics: getDiagnostics,
+ getGlobalDiagnostics: getGlobalDiagnostics,
+ // The language service will always care about the narrowed type of a symbol, because that is
+ // the type the language says the symbol should have.
+ getTypeOfSymbolAtLocation: getNarrowedTypeOfSymbol,
+ getDeclaredTypeOfSymbol: getDeclaredTypeOfSymbol,
+ getPropertiesOfType: getPropertiesOfType,
+ getPropertyOfType: getPropertyOfType,
+ getSignaturesOfType: getSignaturesOfType,
+ getIndexTypeOfType: getIndexTypeOfType,
+ getBaseTypes: getBaseTypes,
+ getReturnTypeOfSignature: getReturnTypeOfSignature,
+ getSymbolsInScope: getSymbolsInScope,
+ getSymbolAtLocation: getSymbolAtLocation,
+ getShorthandAssignmentValueSymbol: getShorthandAssignmentValueSymbol,
+ getTypeAtLocation: getTypeOfNode,
+ typeToString: typeToString,
+ getSymbolDisplayBuilder: getSymbolDisplayBuilder,
+ symbolToString: symbolToString,
+ getAugmentedPropertiesOfType: getAugmentedPropertiesOfType,
+ getRootSymbols: getRootSymbols,
+ getContextualType: getContextualType,
+ getFullyQualifiedName: getFullyQualifiedName,
+ getResolvedSignature: getResolvedSignature,
+ getConstantValue: getConstantValue,
+ isValidPropertyAccess: isValidPropertyAccess,
+ getSignatureFromDeclaration: getSignatureFromDeclaration,
+ isImplementationOfOverload: isImplementationOfOverload,
+ getAliasedSymbol: resolveAlias,
+ getEmitResolver: getEmitResolver,
+ getExportsOfModule: getExportsOfModuleAsArray,
+ getJsxElementAttributesType: getJsxElementAttributesType,
+ getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
+ isOptionalParameter: isOptionalParameter
+ };
+ var unknownSymbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "unknown");
+ var resolvingSymbol = createSymbol(67108864 /* Transient */, "__resolving__");
+ var anyType = createIntrinsicType(1 /* Any */, "any");
+ var stringType = createIntrinsicType(2 /* String */, "string");
+ var numberType = createIntrinsicType(4 /* Number */, "number");
+ var booleanType = createIntrinsicType(8 /* Boolean */, "boolean");
+ var esSymbolType = createIntrinsicType(16777216 /* ESSymbol */, "symbol");
+ var voidType = createIntrinsicType(16 /* Void */, "void");
+ var undefinedType = createIntrinsicType(32 /* Undefined */ | 2097152 /* ContainsUndefinedOrNull */, "undefined");
+ var nullType = createIntrinsicType(64 /* Null */ | 2097152 /* ContainsUndefinedOrNull */, "null");
+ var unknownType = createIntrinsicType(1 /* Any */, "unknown");
+ var circularType = createIntrinsicType(1 /* Any */, "__circular__");
+ var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
+ var emptyGenericType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
+ emptyGenericType.instantiations = {};
+ var anyFunctionType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
+ // The anyFunctionType contains the anyFunctionType by definition. The flag is further propagated
+ // in getPropagatingFlagsOfTypes, and it is checked in inferFromTypes.
+ anyFunctionType.flags |= 8388608 /* ContainsAnyFunctionType */;
+ var noConstraintType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
+ var anySignature = createSignature(undefined, undefined, emptyArray, anyType, undefined, 0, false, false);
+ var unknownSignature = createSignature(undefined, undefined, emptyArray, unknownType, undefined, 0, false, false);
+ var globals = {};
+ var globalESSymbolConstructorSymbol;
+ var getGlobalPromiseConstructorSymbol;
+ var globalObjectType;
+ var globalFunctionType;
+ var globalArrayType;
+ var globalStringType;
+ var globalNumberType;
+ var globalBooleanType;
+ var globalRegExpType;
+ var globalTemplateStringsArrayType;
+ var globalESSymbolType;
+ var jsxElementType;
+ /** Lazily loaded, use getJsxIntrinsicElementType() */
+ var jsxIntrinsicElementsType;
+ var globalIterableType;
+ var globalIteratorType;
+ var globalIterableIteratorType;
+ var anyArrayType;
+ var getGlobalClassDecoratorType;
+ var getGlobalParameterDecoratorType;
+ var getGlobalPropertyDecoratorType;
+ var getGlobalMethodDecoratorType;
+ var getGlobalTypedPropertyDescriptorType;
+ var getGlobalPromiseType;
+ var tryGetGlobalPromiseType;
+ var getGlobalPromiseLikeType;
+ var getInstantiatedGlobalPromiseLikeType;
+ var getGlobalPromiseConstructorLikeType;
+ var getGlobalThenableType;
+ var tupleTypes = {};
+ var unionTypes = {};
+ var intersectionTypes = {};
+ var stringLiteralTypes = {};
+ var emitExtends = false;
+ var emitDecorate = false;
+ var emitParam = false;
+ var emitAwaiter = false;
+ var emitGenerator = false;
+ var resolutionTargets = [];
+ var resolutionResults = [];
+ var resolutionPropertyNames = [];
+ var mergedSymbols = [];
+ var symbolLinks = [];
+ var nodeLinks = [];
+ var potentialThisCollisions = [];
+ var awaitedTypeStack = [];
+ var diagnostics = ts.createDiagnosticCollection();
+ var primitiveTypeInfo = {
+ "string": {
+ type: stringType,
+ flags: 258 /* StringLike */
+ },
+ "number": {
+ type: numberType,
+ flags: 132 /* NumberLike */
+ },
+ "boolean": {
+ type: booleanType,
+ flags: 8 /* Boolean */
+ },
+ "symbol": {
+ type: esSymbolType,
+ flags: 16777216 /* ESSymbol */
+ }
+ };
+ var JsxNames = {
+ JSX: "JSX",
+ IntrinsicElements: "IntrinsicElements",
+ ElementClass: "ElementClass",
+ ElementAttributesPropertyNameContainer: "ElementAttributesProperty",
+ Element: "Element"
+ };
+ var subtypeRelation = {};
+ var assignableRelation = {};
+ var identityRelation = {};
+ // This is for caching the result of getSymbolDisplayBuilder. Do not access directly.
+ var _displayBuilder;
+ var TypeSystemPropertyName;
+ (function (TypeSystemPropertyName) {
+ TypeSystemPropertyName[TypeSystemPropertyName["Type"] = 0] = "Type";
+ TypeSystemPropertyName[TypeSystemPropertyName["ResolvedBaseConstructorType"] = 1] = "ResolvedBaseConstructorType";
+ TypeSystemPropertyName[TypeSystemPropertyName["DeclaredType"] = 2] = "DeclaredType";
+ TypeSystemPropertyName[TypeSystemPropertyName["ResolvedReturnType"] = 3] = "ResolvedReturnType";
+ })(TypeSystemPropertyName || (TypeSystemPropertyName = {}));
+ initializeTypeChecker();
+ return checker;
+ function getEmitResolver(sourceFile, cancellationToken) {
+ // Ensure we have all the type information in place for this file so that all the
+ // emitter questions of this resolver will return the right information.
+ getDiagnostics(sourceFile, cancellationToken);
+ return emitResolver;
+ }
+ function error(location, message, arg0, arg1, arg2) {
+ var diagnostic = location
+ ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2)
+ : ts.createCompilerDiagnostic(message, arg0, arg1, arg2);
+ diagnostics.add(diagnostic);
+ }
+ function createSymbol(flags, name) {
+ symbolCount++;
+ return new Symbol(flags, name);
+ }
+ function getExcludedSymbolFlags(flags) {
+ var result = 0;
+ if (flags & 2 /* BlockScopedVariable */)
+ result |= 107455 /* BlockScopedVariableExcludes */;
+ if (flags & 1 /* FunctionScopedVariable */)
+ result |= 107454 /* FunctionScopedVariableExcludes */;
+ if (flags & 4 /* Property */)
+ result |= 107455 /* PropertyExcludes */;
+ if (flags & 8 /* EnumMember */)
+ result |= 107455 /* EnumMemberExcludes */;
+ if (flags & 16 /* Function */)
+ result |= 106927 /* FunctionExcludes */;
+ if (flags & 32 /* Class */)
+ result |= 899519 /* ClassExcludes */;
+ if (flags & 64 /* Interface */)
+ result |= 792960 /* InterfaceExcludes */;
+ if (flags & 256 /* RegularEnum */)
+ result |= 899327 /* RegularEnumExcludes */;
+ if (flags & 128 /* ConstEnum */)
+ result |= 899967 /* ConstEnumExcludes */;
+ if (flags & 512 /* ValueModule */)
+ result |= 106639 /* ValueModuleExcludes */;
+ if (flags & 8192 /* Method */)
+ result |= 99263 /* MethodExcludes */;
+ if (flags & 32768 /* GetAccessor */)
+ result |= 41919 /* GetAccessorExcludes */;
+ if (flags & 65536 /* SetAccessor */)
+ result |= 74687 /* SetAccessorExcludes */;
+ if (flags & 262144 /* TypeParameter */)
+ result |= 530912 /* TypeParameterExcludes */;
+ if (flags & 524288 /* TypeAlias */)
+ result |= 793056 /* TypeAliasExcludes */;
+ if (flags & 8388608 /* Alias */)
+ result |= 8388608 /* AliasExcludes */;
+ return result;
+ }
+ function recordMergedSymbol(target, source) {
+ if (!source.mergeId)
+ source.mergeId = nextMergeId++;
+ mergedSymbols[source.mergeId] = target;
+ }
+ function cloneSymbol(symbol) {
+ var result = createSymbol(symbol.flags | 33554432 /* Merged */, symbol.name);
+ result.declarations = symbol.declarations.slice(0);
+ result.parent = symbol.parent;
+ if (symbol.valueDeclaration)
+ result.valueDeclaration = symbol.valueDeclaration;
+ if (symbol.constEnumOnlyModule)
+ result.constEnumOnlyModule = true;
+ if (symbol.members)
+ result.members = cloneSymbolTable(symbol.members);
+ if (symbol.exports)
+ result.exports = cloneSymbolTable(symbol.exports);
+ recordMergedSymbol(result, symbol);
+ return result;
+ }
+ function mergeSymbol(target, source) {
+ if (!(target.flags & getExcludedSymbolFlags(source.flags))) {
+ if (source.flags & 512 /* ValueModule */ && target.flags & 512 /* ValueModule */ && target.constEnumOnlyModule && !source.constEnumOnlyModule) {
+ // reset flag when merging instantiated module into value module that has only const enums
+ target.constEnumOnlyModule = false;
+ }
+ target.flags |= source.flags;
+ if (!target.valueDeclaration && source.valueDeclaration)
+ target.valueDeclaration = source.valueDeclaration;
+ ts.forEach(source.declarations, function (node) {
+ target.declarations.push(node);
+ });
+ if (source.members) {
+ if (!target.members)
+ target.members = {};
+ mergeSymbolTable(target.members, source.members);
+ }
+ if (source.exports) {
+ if (!target.exports)
+ target.exports = {};
+ mergeSymbolTable(target.exports, source.exports);
+ }
+ recordMergedSymbol(target, source);
+ }
+ else {
+ var message = target.flags & 2 /* BlockScopedVariable */ || source.flags & 2 /* BlockScopedVariable */
+ ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0 : ts.Diagnostics.Duplicate_identifier_0;
+ ts.forEach(source.declarations, function (node) {
+ error(node.name ? node.name : node, message, symbolToString(source));
+ });
+ ts.forEach(target.declarations, function (node) {
+ error(node.name ? node.name : node, message, symbolToString(source));
+ });
+ }
+ }
+ function cloneSymbolTable(symbolTable) {
+ var result = {};
+ for (var id in symbolTable) {
+ if (ts.hasProperty(symbolTable, id)) {
+ result[id] = symbolTable[id];
+ }
+ }
+ return result;
+ }
+ function mergeSymbolTable(target, source) {
+ for (var id in source) {
+ if (ts.hasProperty(source, id)) {
+ if (!ts.hasProperty(target, id)) {
+ target[id] = source[id];
+ }
+ else {
+ var symbol = target[id];
+ if (!(symbol.flags & 33554432 /* Merged */)) {
+ target[id] = symbol = cloneSymbol(symbol);
+ }
+ mergeSymbol(symbol, source[id]);
+ }
+ }
+ }
+ }
+ function getSymbolLinks(symbol) {
+ if (symbol.flags & 67108864 /* Transient */)
+ return symbol;
+ var id = getSymbolId(symbol);
+ return symbolLinks[id] || (symbolLinks[id] = {});
+ }
+ function getNodeLinks(node) {
+ var nodeId = getNodeId(node);
+ return nodeLinks[nodeId] || (nodeLinks[nodeId] = {});
+ }
+ function getSourceFile(node) {
+ return ts.getAncestor(node, 248 /* SourceFile */);
+ }
+ function isGlobalSourceFile(node) {
+ return node.kind === 248 /* SourceFile */ && !ts.isExternalModule(node);
+ }
+ function getSymbol(symbols, name, meaning) {
+ if (meaning && ts.hasProperty(symbols, name)) {
+ var symbol = symbols[name];
+ ts.Debug.assert((symbol.flags & 16777216 /* Instantiated */) === 0, "Should never get an instantiated symbol here.");
+ if (symbol.flags & meaning) {
+ return symbol;
+ }
+ if (symbol.flags & 8388608 /* Alias */) {
+ var target = resolveAlias(symbol);
+ // Unknown symbol means an error occurred in alias resolution, treat it as positive answer to avoid cascading errors
+ if (target === unknownSymbol || target.flags & meaning) {
+ return symbol;
+ }
+ }
+ }
+ // return undefined if we can't find a symbol.
+ }
+ function isBlockScopedNameDeclaredBeforeUse(declaration, usage) {
+ var declarationFile = ts.getSourceFileOfNode(declaration);
+ var useFile = ts.getSourceFileOfNode(usage);
+ if (declarationFile !== useFile) {
+ if (modulekind || (!compilerOptions.outFile && !compilerOptions.out)) {
+ // nodes are in different files and order cannot be determines
+ return true;
+ }
+ var sourceFiles = host.getSourceFiles();
+ return ts.indexOf(sourceFiles, declarationFile) <= ts.indexOf(sourceFiles, useFile);
+ }
+ if (declaration.pos <= usage.pos) {
+ // declaration is before usage
+ // still might be illegal if usage is in the initializer of the variable declaration
+ return declaration.kind !== 211 /* VariableDeclaration */ ||
+ !isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage);
+ }
+ // declaration is after usage
+ // can be legal if usage is deferred (i.e. inside function or in initializer of instance property)
+ return isUsedInFunctionOrNonStaticProperty(declaration, usage);
+ function isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage) {
+ var container = ts.getEnclosingBlockScopeContainer(declaration);
+ if (declaration.parent.parent.kind === 193 /* VariableStatement */ ||
+ declaration.parent.parent.kind === 199 /* ForStatement */) {
+ // variable statement/for statement case,
+ // use site should not be inside variable declaration (initializer of declaration or binding element)
+ return isSameScopeDescendentOf(usage, declaration, container);
+ }
+ else if (declaration.parent.parent.kind === 201 /* ForOfStatement */ ||
+ declaration.parent.parent.kind === 200 /* ForInStatement */) {
+ // ForIn/ForOf case - use site should not be used in expression part
+ var expression = declaration.parent.parent.expression;
+ return isSameScopeDescendentOf(usage, expression, container);
+ }
+ }
+ function isUsedInFunctionOrNonStaticProperty(declaration, usage) {
+ var container = ts.getEnclosingBlockScopeContainer(declaration);
+ var current = usage;
+ while (current) {
+ if (current === container) {
+ return false;
+ }
+ if (ts.isFunctionLike(current)) {
+ return true;
+ }
+ var initializerOfNonStaticProperty = current.parent &&
+ current.parent.kind === 141 /* PropertyDeclaration */ &&
+ (current.parent.flags & 128 /* Static */) === 0 &&
+ current.parent.initializer === current;
+ if (initializerOfNonStaticProperty) {
+ return true;
+ }
+ current = current.parent;
+ }
+ return false;
+ }
+ }
+ // Resolve a given name for a given meaning at a given location. An error is reported if the name was not found and
+ // the nameNotFoundMessage argument is not undefined. Returns the resolved symbol, or undefined if no symbol with
+ // the given name can be found.
+ function resolveName(location, name, meaning, nameNotFoundMessage, nameArg) {
+ var result;
+ var lastLocation;
+ var propertyWithInvalidInitializer;
+ var errorLocation = location;
+ var grandparent;
+ loop: while (location) {
+ // Locals of a source file are not in scope (because they get merged into the global symbol table)
+ if (location.locals && !isGlobalSourceFile(location)) {
+ if (result = getSymbol(location.locals, name, meaning)) {
+ // Type parameters of a function are in scope in the entire function declaration, including the parameter
+ // list and return type. However, local types are only in scope in the function body.
+ if (!(meaning & 793056 /* Type */) ||
+ !(result.flags & (793056 /* Type */ & ~262144 /* TypeParameter */)) ||
+ !ts.isFunctionLike(location) ||
+ lastLocation === location.body) {
+ break loop;
+ }
+ result = undefined;
+ }
+ }
+ switch (location.kind) {
+ case 248 /* SourceFile */:
+ if (!ts.isExternalModule(location))
+ break;
+ case 218 /* ModuleDeclaration */:
+ var moduleExports = getSymbolOfNode(location).exports;
+ if (location.kind === 248 /* SourceFile */ ||
+ (location.kind === 218 /* ModuleDeclaration */ && location.name.kind === 9 /* StringLiteral */)) {
+ // It's an external module. Because of module/namespace merging, a module's exports are in scope,
+ // yet we never want to treat an export specifier as putting a member in scope. Therefore,
+ // if the name we find is purely an export specifier, it is not actually considered in scope.
+ // Two things to note about this:
+ // 1. We have to check this without calling getSymbol. The problem with calling getSymbol
+ // on an export specifier is that it might find the export specifier itself, and try to
+ // resolve it as an alias. This will cause the checker to consider the export specifier
+ // a circular alias reference when it might not be.
+ // 2. We check === SymbolFlags.Alias in order to check that the symbol is *purely*
+ // an alias. If we used &, we'd be throwing out symbols that have non alias aspects,
+ // which is not the desired behavior.
+ if (ts.hasProperty(moduleExports, name) &&
+ moduleExports[name].flags === 8388608 /* Alias */ &&
+ ts.getDeclarationOfKind(moduleExports[name], 230 /* ExportSpecifier */)) {
+ break;
+ }
+ result = moduleExports["default"];
+ var localSymbol = ts.getLocalSymbolForExportDefault(result);
+ if (result && localSymbol && (result.flags & meaning) && localSymbol.name === name) {
+ break loop;
+ }
+ result = undefined;
+ }
+ if (result = getSymbol(moduleExports, name, meaning & 8914931 /* ModuleMember */)) {
+ break loop;
+ }
+ break;
+ case 217 /* EnumDeclaration */:
+ if (result = getSymbol(getSymbolOfNode(location).exports, name, meaning & 8 /* EnumMember */)) {
+ break loop;
+ }
+ break;
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ // TypeScript 1.0 spec (April 2014): 8.4.1
+ // Initializer expressions for instance member variables are evaluated in the scope
+ // of the class constructor body but are not permitted to reference parameters or
+ // local variables of the constructor. This effectively means that entities from outer scopes
+ // by the same name as a constructor parameter or local variable are inaccessible
+ // in initializer expressions for instance member variables.
+ if (ts.isClassLike(location.parent) && !(location.flags & 128 /* Static */)) {
+ var ctor = findConstructorDeclaration(location.parent);
+ if (ctor && ctor.locals) {
+ if (getSymbol(ctor.locals, name, meaning & 107455 /* Value */)) {
+ // Remember the property node, it will be used later to report appropriate error
+ propertyWithInvalidInitializer = location;
+ }
+ }
+ }
+ break;
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 215 /* InterfaceDeclaration */:
+ if (result = getSymbol(getSymbolOfNode(location).members, name, meaning & 793056 /* Type */)) {
+ if (lastLocation && lastLocation.flags & 128 /* Static */) {
+ // TypeScript 1.0 spec (April 2014): 3.4.1
+ // The scope of a type parameter extends over the entire declaration with which the type
+ // parameter list is associated, with the exception of static member declarations in classes.
+ error(errorLocation, ts.Diagnostics.Static_members_cannot_reference_class_type_parameters);
+ return undefined;
+ }
+ break loop;
+ }
+ if (location.kind === 186 /* ClassExpression */ && meaning & 32 /* Class */) {
+ var className = location.name;
+ if (className && name === className.text) {
+ result = location.symbol;
+ break loop;
+ }
+ }
+ break;
+ // It is not legal to reference a class's own type parameters from a computed property name that
+ // belongs to the class. For example:
+ //
+ // function foo<T>() { return '' }
+ // class C<T> { // <-- Class's own type parameter T
+ // [foo<T>()]() { } // <-- Reference to T from class's own computed property
+ // }
+ //
+ case 136 /* ComputedPropertyName */:
+ grandparent = location.parent.parent;
+ if (ts.isClassLike(grandparent) || grandparent.kind === 215 /* InterfaceDeclaration */) {
+ // A reference to this grandparent's type parameters would be an error
+ if (result = getSymbol(getSymbolOfNode(grandparent).members, name, meaning & 793056 /* Type */)) {
+ error(errorLocation, ts.Diagnostics.A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type);
+ return undefined;
+ }
+ }
+ break;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ case 174 /* ArrowFunction */:
+ if (meaning & 3 /* Variable */ && name === "arguments") {
+ result = argumentsSymbol;
+ break loop;
+ }
+ break;
+ case 173 /* FunctionExpression */:
+ if (meaning & 3 /* Variable */ && name === "arguments") {
+ result = argumentsSymbol;
+ break loop;
+ }
+ if (meaning & 16 /* Function */) {
+ var functionName = location.name;
+ if (functionName && name === functionName.text) {
+ result = location.symbol;
+ break loop;
+ }
+ }
+ break;
+ case 139 /* Decorator */:
+ // Decorators are resolved at the class declaration. Resolving at the parameter
+ // or member would result in looking up locals in the method.
+ //
+ // function y() {}
+ // class C {
+ // method(@y x, y) {} // <-- decorator y should be resolved at the class declaration, not the parameter.
+ // }
+ //
+ if (location.parent && location.parent.kind === 138 /* Parameter */) {
+ location = location.parent;
+ }
+ //
+ // function y() {}
+ // class C {
+ // @y method(x, y) {} // <-- decorator y should be resolved at the class declaration, not the method.
+ // }
+ //
+ if (location.parent && ts.isClassElement(location.parent)) {
+ location = location.parent;
+ }
+ break;
+ }
+ lastLocation = location;
+ location = location.parent;
+ }
+ if (!result) {
+ result = getSymbol(globals, name, meaning);
+ }
+ if (!result) {
+ if (nameNotFoundMessage) {
+ error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
+ }
+ return undefined;
+ }
+ // Perform extra checks only if error reporting was requested
+ if (nameNotFoundMessage) {
+ if (propertyWithInvalidInitializer) {
+ // We have a match, but the reference occurred within a property initializer and the identifier also binds
+ // to a local variable in the constructor where the code will be emitted.
+ var propertyName = propertyWithInvalidInitializer.name;
+ error(errorLocation, ts.Diagnostics.Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor, ts.declarationNameToString(propertyName), typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
+ return undefined;
+ }
+ // Only check for block-scoped variable if we are looking for the
+ // name with variable meaning
+ // For example,
+ // declare module foo {
+ // interface bar {}
+ // }
+ // let foo/*1*/: foo/*2*/.bar;
+ // The foo at /*1*/ and /*2*/ will share same symbol with two meaning
+ // block - scope variable and namespace module. However, only when we
+ // try to resolve name in /*1*/ which is used in variable position,
+ // we want to check for block- scoped
+ if (meaning & 2 /* BlockScopedVariable */) {
+ var exportOrLocalSymbol = getExportSymbolOfValueSymbolIfExported(result);
+ if (exportOrLocalSymbol.flags & 2 /* BlockScopedVariable */) {
+ checkResolvedBlockScopedVariable(exportOrLocalSymbol, errorLocation);
+ }
+ }
+ }
+ return result;
+ }
+ function checkResolvedBlockScopedVariable(result, errorLocation) {
+ ts.Debug.assert((result.flags & 2 /* BlockScopedVariable */) !== 0);
+ // Block-scoped variables cannot be used before their definition
+ var declaration = ts.forEach(result.declarations, function (d) { return ts.isBlockOrCatchScoped(d) ? d : undefined; });
+ ts.Debug.assert(declaration !== undefined, "Block-scoped variable declaration is undefined");
+ if (!isBlockScopedNameDeclaredBeforeUse(ts.getAncestor(declaration, 211 /* VariableDeclaration */), errorLocation)) {
+ error(errorLocation, ts.Diagnostics.Block_scoped_variable_0_used_before_its_declaration, ts.declarationNameToString(declaration.name));
+ }
+ }
+ /* Starting from 'initial' node walk up the parent chain until 'stopAt' node is reached.
+ * If at any point current node is equal to 'parent' node - return true.
+ * Return false if 'stopAt' node is reached or isFunctionLike(current) === true.
+ */
+ function isSameScopeDescendentOf(initial, parent, stopAt) {
+ if (!parent) {
+ return false;
+ }
+ for (var current = initial; current && current !== stopAt && !ts.isFunctionLike(current); current = current.parent) {
+ if (current === parent) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function getAnyImportSyntax(node) {
+ if (ts.isAliasSymbolDeclaration(node)) {
+ if (node.kind === 221 /* ImportEqualsDeclaration */) {
+ return node;
+ }
+ while (node && node.kind !== 222 /* ImportDeclaration */) {
+ node = node.parent;
+ }
+ return node;
+ }
+ }
+ function getDeclarationOfAliasSymbol(symbol) {
+ return ts.forEach(symbol.declarations, function (d) { return ts.isAliasSymbolDeclaration(d) ? d : undefined; });
+ }
+ function getTargetOfImportEqualsDeclaration(node) {
+ if (node.moduleReference.kind === 232 /* ExternalModuleReference */) {
+ return resolveExternalModuleSymbol(resolveExternalModuleName(node, ts.getExternalModuleImportEqualsDeclarationExpression(node)));
+ }
+ return getSymbolOfPartOfRightHandSideOfImportEquals(node.moduleReference, node);
+ }
+ function getTargetOfImportClause(node) {
+ var moduleSymbol = resolveExternalModuleName(node, node.parent.moduleSpecifier);
+ if (moduleSymbol) {
+ var exportDefaultSymbol = resolveSymbol(moduleSymbol.exports["default"]);
+ if (!exportDefaultSymbol) {
+ error(node.name, ts.Diagnostics.Module_0_has_no_default_export, symbolToString(moduleSymbol));
+ }
+ return exportDefaultSymbol;
+ }
+ }
+ function getTargetOfNamespaceImport(node) {
+ var moduleSpecifier = node.parent.parent.moduleSpecifier;
+ return resolveESModuleSymbol(resolveExternalModuleName(node, moduleSpecifier), moduleSpecifier);
+ }
+ function getMemberOfModuleVariable(moduleSymbol, name) {
+ if (moduleSymbol.flags & 3 /* Variable */) {
+ var typeAnnotation = moduleSymbol.valueDeclaration.type;
+ if (typeAnnotation) {
+ return getPropertyOfType(getTypeFromTypeNode(typeAnnotation), name);
+ }
+ }
+ }
+ // This function creates a synthetic symbol that combines the value side of one symbol with the
+ // type/namespace side of another symbol. Consider this example:
+ //
+ // declare module graphics {
+ // interface Point {
+ // x: number;
+ // y: number;
+ // }
+ // }
+ // declare var graphics: {
+ // Point: new (x: number, y: number) => graphics.Point;
+ // }
+ // declare module "graphics" {
+ // export = graphics;
+ // }
+ //
+ // An 'import { Point } from "graphics"' needs to create a symbol that combines the value side 'Point'
+ // property with the type/namespace side interface 'Point'.
+ function combineValueAndTypeSymbols(valueSymbol, typeSymbol) {
+ if (valueSymbol.flags & (793056 /* Type */ | 1536 /* Namespace */)) {
+ return valueSymbol;
+ }
+ var result = createSymbol(valueSymbol.flags | typeSymbol.flags, valueSymbol.name);
+ result.declarations = ts.concatenate(valueSymbol.declarations, typeSymbol.declarations);
+ result.parent = valueSymbol.parent || typeSymbol.parent;
+ if (valueSymbol.valueDeclaration)
+ result.valueDeclaration = valueSymbol.valueDeclaration;
+ if (typeSymbol.members)
+ result.members = typeSymbol.members;
+ if (valueSymbol.exports)
+ result.exports = valueSymbol.exports;
+ return result;
+ }
+ function getExportOfModule(symbol, name) {
+ if (symbol.flags & 1536 /* Module */) {
+ var exports = getExportsOfSymbol(symbol);
+ if (ts.hasProperty(exports, name)) {
+ return resolveSymbol(exports[name]);
+ }
+ }
+ }
+ function getPropertyOfVariable(symbol, name) {
+ if (symbol.flags & 3 /* Variable */) {
+ var typeAnnotation = symbol.valueDeclaration.type;
+ if (typeAnnotation) {
+ return resolveSymbol(getPropertyOfType(getTypeFromTypeNode(typeAnnotation), name));
+ }
+ }
+ }
+ function getExternalModuleMember(node, specifier) {
+ var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
+ var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
+ if (targetSymbol) {
+ var name_9 = specifier.propertyName || specifier.name;
+ if (name_9.text) {
+ var symbolFromModule = getExportOfModule(targetSymbol, name_9.text);
+ var symbolFromVariable = getPropertyOfVariable(targetSymbol, name_9.text);
+ var symbol = symbolFromModule && symbolFromVariable ?
+ combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
+ symbolFromModule || symbolFromVariable;
+ if (!symbol) {
+ error(name_9, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_9));
+ }
+ return symbol;
+ }
+ }
+ }
+ function getTargetOfImportSpecifier(node) {
+ return getExternalModuleMember(node.parent.parent.parent, node);
+ }
+ function getTargetOfExportSpecifier(node) {
+ return node.parent.parent.moduleSpecifier ?
+ getExternalModuleMember(node.parent.parent, node) :
+ resolveEntityName(node.propertyName || node.name, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */);
+ }
+ function getTargetOfExportAssignment(node) {
+ return resolveEntityName(node.expression, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */);
+ }
+ function getTargetOfAliasDeclaration(node) {
+ switch (node.kind) {
+ case 221 /* ImportEqualsDeclaration */:
+ return getTargetOfImportEqualsDeclaration(node);
+ case 223 /* ImportClause */:
+ return getTargetOfImportClause(node);
+ case 224 /* NamespaceImport */:
+ return getTargetOfNamespaceImport(node);
+ case 226 /* ImportSpecifier */:
+ return getTargetOfImportSpecifier(node);
+ case 230 /* ExportSpecifier */:
+ return getTargetOfExportSpecifier(node);
+ case 227 /* ExportAssignment */:
+ return getTargetOfExportAssignment(node);
+ }
+ }
+ function resolveSymbol(symbol) {
+ return symbol && symbol.flags & 8388608 /* Alias */ && !(symbol.flags & (107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */)) ? resolveAlias(symbol) : symbol;
+ }
+ function resolveAlias(symbol) {
+ ts.Debug.assert((symbol.flags & 8388608 /* Alias */) !== 0, "Should only get Alias here.");
+ var links = getSymbolLinks(symbol);
+ if (!links.target) {
+ links.target = resolvingSymbol;
+ var node = getDeclarationOfAliasSymbol(symbol);
+ var target = getTargetOfAliasDeclaration(node);
+ if (links.target === resolvingSymbol) {
+ links.target = target || unknownSymbol;
+ }
+ else {
+ error(node, ts.Diagnostics.Circular_definition_of_import_alias_0, symbolToString(symbol));
+ }
+ }
+ else if (links.target === resolvingSymbol) {
+ links.target = unknownSymbol;
+ }
+ return links.target;
+ }
+ function markExportAsReferenced(node) {
+ var symbol = getSymbolOfNode(node);
+ var target = resolveAlias(symbol);
+ if (target) {
+ var markAlias = (target === unknownSymbol && compilerOptions.isolatedModules) ||
+ (target !== unknownSymbol && (target.flags & 107455 /* Value */) && !isConstEnumOrConstEnumOnlyModule(target));
+ if (markAlias) {
+ markAliasSymbolAsReferenced(symbol);
+ }
+ }
+ }
+ // When an alias symbol is referenced, we need to mark the entity it references as referenced and in turn repeat that until
+ // we reach a non-alias or an exported entity (which is always considered referenced). We do this by checking the target of
+ // the alias as an expression (which recursively takes us back here if the target references another alias).
+ function markAliasSymbolAsReferenced(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.referenced) {
+ links.referenced = true;
+ var node = getDeclarationOfAliasSymbol(symbol);
+ if (node.kind === 227 /* ExportAssignment */) {
+ // export default <symbol>
+ checkExpressionCached(node.expression);
+ }
+ else if (node.kind === 230 /* ExportSpecifier */) {
+ // export { <symbol> } or export { <symbol> as foo }
+ checkExpressionCached(node.propertyName || node.name);
+ }
+ else if (ts.isInternalModuleImportEqualsDeclaration(node)) {
+ // import foo = <symbol>
+ checkExpressionCached(node.moduleReference);
+ }
+ }
+ }
+ // This function is only for imports with entity names
+ function getSymbolOfPartOfRightHandSideOfImportEquals(entityName, importDeclaration) {
+ if (!importDeclaration) {
+ importDeclaration = ts.getAncestor(entityName, 221 /* ImportEqualsDeclaration */);
+ ts.Debug.assert(importDeclaration !== undefined);
+ }
+ // There are three things we might try to look for. In the following examples,
+ // the search term is enclosed in |...|:
+ //
+ // import a = |b|; // Namespace
+ // import a = |b.c|; // Value, type, namespace
+ // import a = |b.c|.d; // Namespace
+ if (entityName.kind === 69 /* Identifier */ && ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
+ entityName = entityName.parent;
+ }
+ // Check for case 1 and 3 in the above example
+ if (entityName.kind === 69 /* Identifier */ || entityName.parent.kind === 135 /* QualifiedName */) {
+ return resolveEntityName(entityName, 1536 /* Namespace */);
+ }
+ else {
+ // Case 2 in above example
+ // entityName.kind could be a QualifiedName or a Missing identifier
+ ts.Debug.assert(entityName.parent.kind === 221 /* ImportEqualsDeclaration */);
+ return resolveEntityName(entityName, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */);
+ }
+ }
+ function getFullyQualifiedName(symbol) {
+ return symbol.parent ? getFullyQualifiedName(symbol.parent) + "." + symbolToString(symbol) : symbolToString(symbol);
+ }
+ // Resolves a qualified name and any involved aliases
+ function resolveEntityName(name, meaning, ignoreErrors) {
+ if (ts.nodeIsMissing(name)) {
+ return undefined;
+ }
+ var symbol;
+ if (name.kind === 69 /* Identifier */) {
+ var message = meaning === 1536 /* Namespace */ ? ts.Diagnostics.Cannot_find_namespace_0 : ts.Diagnostics.Cannot_find_name_0;
+ symbol = resolveName(name, name.text, meaning, ignoreErrors ? undefined : message, name);
+ if (!symbol) {
+ return undefined;
+ }
+ }
+ else if (name.kind === 135 /* QualifiedName */ || name.kind === 166 /* PropertyAccessExpression */) {
+ var left = name.kind === 135 /* QualifiedName */ ? name.left : name.expression;
+ var right = name.kind === 135 /* QualifiedName */ ? name.right : name.name;
+ var namespace = resolveEntityName(left, 1536 /* Namespace */, ignoreErrors);
+ if (!namespace || namespace === unknownSymbol || ts.nodeIsMissing(right)) {
+ return undefined;
+ }
+ symbol = getSymbol(getExportsOfSymbol(namespace), right.text, meaning);
+ if (!symbol) {
+ if (!ignoreErrors) {
+ error(right, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(namespace), ts.declarationNameToString(right));
+ }
+ return undefined;
+ }
+ }
+ else {
+ ts.Debug.fail("Unknown entity name kind.");
+ }
+ ts.Debug.assert((symbol.flags & 16777216 /* Instantiated */) === 0, "Should never get an instantiated symbol here.");
+ return symbol.flags & meaning ? symbol : resolveAlias(symbol);
+ }
+ function resolveExternalModuleName(location, moduleReferenceExpression) {
+ if (moduleReferenceExpression.kind !== 9 /* StringLiteral */) {
+ return;
+ }
+ var moduleReferenceLiteral = moduleReferenceExpression;
+ var searchPath = ts.getDirectoryPath(getSourceFile(location).fileName);
+ // Module names are escaped in our symbol table. However, string literal values aren't.
+ // Escape the name in the "require(...)" clause to ensure we find the right symbol.
+ var moduleName = ts.escapeIdentifier(moduleReferenceLiteral.text);
+ if (moduleName === undefined) {
+ return;
+ }
+ var isRelative = ts.isExternalModuleNameRelative(moduleName);
+ if (!isRelative) {
+ var symbol = getSymbol(globals, "\"" + moduleName + "\"", 512 /* ValueModule */);
+ if (symbol) {
+ return symbol;
+ }
+ }
+ var resolvedModule = ts.getResolvedModule(getSourceFile(location), moduleReferenceLiteral.text);
+ var sourceFile = resolvedModule && host.getSourceFile(resolvedModule.resolvedFileName);
+ if (sourceFile) {
+ if (sourceFile.symbol) {
+ return sourceFile.symbol;
+ }
+ error(moduleReferenceLiteral, ts.Diagnostics.File_0_is_not_a_module, sourceFile.fileName);
+ return;
+ }
+ error(moduleReferenceLiteral, ts.Diagnostics.Cannot_find_module_0, moduleName);
+ }
+ // An external module with an 'export =' declaration resolves to the target of the 'export =' declaration,
+ // and an external module with no 'export =' declaration resolves to the module itself.
+ function resolveExternalModuleSymbol(moduleSymbol) {
+ return moduleSymbol && resolveSymbol(moduleSymbol.exports["export="]) || moduleSymbol;
+ }
+ // An external module with an 'export =' declaration may be referenced as an ES6 module provided the 'export ='
+ // references a symbol that is at least declared as a module or a variable. The target of the 'export =' may
+ // combine other declarations with the module or variable (e.g. a class/module, function/module, interface/variable).
+ function resolveESModuleSymbol(moduleSymbol, moduleReferenceExpression) {
+ var symbol = resolveExternalModuleSymbol(moduleSymbol);
+ if (symbol && !(symbol.flags & (1536 /* Module */ | 3 /* Variable */))) {
+ error(moduleReferenceExpression, ts.Diagnostics.Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct, symbolToString(moduleSymbol));
+ symbol = undefined;
+ }
+ return symbol;
+ }
+ function getExportAssignmentSymbol(moduleSymbol) {
+ return moduleSymbol.exports["export="];
+ }
+ function getExportsOfModuleAsArray(moduleSymbol) {
+ return symbolsToArray(getExportsOfModule(moduleSymbol));
+ }
+ function getExportsOfSymbol(symbol) {
+ return symbol.flags & 1536 /* Module */ ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
+ }
+ function getExportsOfModule(moduleSymbol) {
+ var links = getSymbolLinks(moduleSymbol);
+ return links.resolvedExports || (links.resolvedExports = getExportsForModule(moduleSymbol));
+ }
+ function extendExportSymbols(target, source) {
+ for (var id in source) {
+ if (id !== "default" && !ts.hasProperty(target, id)) {
+ target[id] = source[id];
+ }
+ }
+ }
+ function getExportsForModule(moduleSymbol) {
+ var result;
+ var visitedSymbols = [];
+ visit(moduleSymbol);
+ return result || moduleSymbol.exports;
+ // The ES6 spec permits export * declarations in a module to circularly reference the module itself. For example,
+ // module 'a' can 'export * from "b"' and 'b' can 'export * from "a"' without error.
+ function visit(symbol) {
+ if (symbol && symbol.flags & 1952 /* HasExports */ && !ts.contains(visitedSymbols, symbol)) {
+ visitedSymbols.push(symbol);
+ if (symbol !== moduleSymbol) {
+ if (!result) {
+ result = cloneSymbolTable(moduleSymbol.exports);
+ }
+ extendExportSymbols(result, symbol.exports);
+ }
+ // All export * declarations are collected in an __export symbol by the binder
+ var exportStars = symbol.exports["__export"];
+ if (exportStars) {
+ for (var _i = 0, _a = exportStars.declarations; _i < _a.length; _i++) {
+ var node = _a[_i];
+ visit(resolveExternalModuleName(node, node.moduleSpecifier));
+ }
+ }
+ }
+ }
+ }
+ function getMergedSymbol(symbol) {
+ var merged;
+ return symbol && symbol.mergeId && (merged = mergedSymbols[symbol.mergeId]) ? merged : symbol;
+ }
+ function getSymbolOfNode(node) {
+ return getMergedSymbol(node.symbol);
+ }
+ function getParentOfSymbol(symbol) {
+ return getMergedSymbol(symbol.parent);
+ }
+ function getExportSymbolOfValueSymbolIfExported(symbol) {
+ return symbol && (symbol.flags & 1048576 /* ExportValue */) !== 0
+ ? getMergedSymbol(symbol.exportSymbol)
+ : symbol;
+ }
+ function symbolIsValue(symbol) {
+ // If it is an instantiated symbol, then it is a value if the symbol it is an
+ // instantiation of is a value.
+ if (symbol.flags & 16777216 /* Instantiated */) {
+ return symbolIsValue(getSymbolLinks(symbol).target);
+ }
+ // If the symbol has the value flag, it is trivially a value.
+ if (symbol.flags & 107455 /* Value */) {
+ return true;
+ }
+ // If it is an alias, then it is a value if the symbol it resolves to is a value.
+ if (symbol.flags & 8388608 /* Alias */) {
+ return (resolveAlias(symbol).flags & 107455 /* Value */) !== 0;
+ }
+ return false;
+ }
+ function findConstructorDeclaration(node) {
+ var members = node.members;
+ for (var _i = 0; _i < members.length; _i++) {
+ var member = members[_i];
+ if (member.kind === 144 /* Constructor */ && ts.nodeIsPresent(member.body)) {
+ return member;
+ }
+ }
+ }
+ function createType(flags) {
+ var result = new Type(checker, flags);
+ result.id = typeCount++;
+ return result;
+ }
+ function createIntrinsicType(kind, intrinsicName) {
+ var type = createType(kind);
+ type.intrinsicName = intrinsicName;
+ return type;
+ }
+ function createObjectType(kind, symbol) {
+ var type = createType(kind);
+ type.symbol = symbol;
+ return type;
+ }
+ // A reserved member name starts with two underscores, but the third character cannot be an underscore
+ // or the @ symbol. A third underscore indicates an escaped form of an identifer that started
+ // with at least two underscores. The @ character indicates that the name is denoted by a well known ES
+ // Symbol instance.
+ function isReservedMemberName(name) {
+ return name.charCodeAt(0) === 95 /* _ */ &&
+ name.charCodeAt(1) === 95 /* _ */ &&
+ name.charCodeAt(2) !== 95 /* _ */ &&
+ name.charCodeAt(2) !== 64 /* at */;
+ }
+ function getNamedMembers(members) {
+ var result;
+ for (var id in members) {
+ if (ts.hasProperty(members, id)) {
+ if (!isReservedMemberName(id)) {
+ if (!result)
+ result = [];
+ var symbol = members[id];
+ if (symbolIsValue(symbol)) {
+ result.push(symbol);
+ }
+ }
+ }
+ }
+ return result || emptyArray;
+ }
+ function setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexType, numberIndexType) {
+ type.members = members;
+ type.properties = getNamedMembers(members);
+ type.callSignatures = callSignatures;
+ type.constructSignatures = constructSignatures;
+ if (stringIndexType)
+ type.stringIndexType = stringIndexType;
+ if (numberIndexType)
+ type.numberIndexType = numberIndexType;
+ return type;
+ }
+ function createAnonymousType(symbol, members, callSignatures, constructSignatures, stringIndexType, numberIndexType) {
+ return setObjectTypeMembers(createObjectType(65536 /* Anonymous */, symbol), members, callSignatures, constructSignatures, stringIndexType, numberIndexType);
+ }
+ function forEachSymbolTableInScope(enclosingDeclaration, callback) {
+ var result;
+ for (var location_1 = enclosingDeclaration; location_1; location_1 = location_1.parent) {
+ // Locals of a source file are not in scope (because they get merged into the global symbol table)
+ if (location_1.locals && !isGlobalSourceFile(location_1)) {
+ if (result = callback(location_1.locals)) {
+ return result;
+ }
+ }
+ switch (location_1.kind) {
+ case 248 /* SourceFile */:
+ if (!ts.isExternalModule(location_1)) {
+ break;
+ }
+ case 218 /* ModuleDeclaration */:
+ if (result = callback(getSymbolOfNode(location_1).exports)) {
+ return result;
+ }
+ break;
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ if (result = callback(getSymbolOfNode(location_1).members)) {
+ return result;
+ }
+ break;
+ }
+ }
+ return callback(globals);
+ }
+ function getQualifiedLeftMeaning(rightMeaning) {
+ // If we are looking in value space, the parent meaning is value, other wise it is namespace
+ return rightMeaning === 107455 /* Value */ ? 107455 /* Value */ : 1536 /* Namespace */;
+ }
+ function getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, useOnlyExternalAliasing) {
+ function getAccessibleSymbolChainFromSymbolTable(symbols) {
+ function canQualifySymbol(symbolFromSymbolTable, meaning) {
+ // If the symbol is equivalent and doesn't need further qualification, this symbol is accessible
+ if (!needsQualification(symbolFromSymbolTable, enclosingDeclaration, meaning)) {
+ return true;
+ }
+ // If symbol needs qualification, make sure that parent is accessible, if it is then this symbol is accessible too
+ var accessibleParent = getAccessibleSymbolChain(symbolFromSymbolTable.parent, enclosingDeclaration, getQualifiedLeftMeaning(meaning), useOnlyExternalAliasing);
+ return !!accessibleParent;
+ }
+ function isAccessible(symbolFromSymbolTable, resolvedAliasSymbol) {
+ if (symbol === (resolvedAliasSymbol || symbolFromSymbolTable)) {
+ // if the symbolFromSymbolTable is not external module (it could be if it was determined as ambient external module and would be in globals table)
+ // and if symbolfrom symbolTable or alias resolution matches the symbol,
+ // check the symbol can be qualified, it is only then this symbol is accessible
+ return !ts.forEach(symbolFromSymbolTable.declarations, hasExternalModuleSymbol) &&
+ canQualifySymbol(symbolFromSymbolTable, meaning);
+ }
+ }
+ // If symbol is directly available by its name in the symbol table
+ if (isAccessible(ts.lookUp(symbols, symbol.name))) {
+ return [symbol];
+ }
+ // Check if symbol is any of the alias
+ return ts.forEachValue(symbols, function (symbolFromSymbolTable) {
+ if (symbolFromSymbolTable.flags & 8388608 /* Alias */
+ && symbolFromSymbolTable.name !== "export="
+ && !ts.getDeclarationOfKind(symbolFromSymbolTable, 230 /* ExportSpecifier */)) {
+ if (!useOnlyExternalAliasing ||
+ // Is this external alias, then use it to name
+ ts.forEach(symbolFromSymbolTable.declarations, ts.isExternalModuleImportEqualsDeclaration)) {
+ var resolvedImportedSymbol = resolveAlias(symbolFromSymbolTable);
+ if (isAccessible(symbolFromSymbolTable, resolveAlias(symbolFromSymbolTable))) {
+ return [symbolFromSymbolTable];
+ }
+ // Look in the exported members, if we can find accessibleSymbolChain, symbol is accessible using this chain
+ // but only if the symbolFromSymbolTable can be qualified
+ var accessibleSymbolsFromExports = resolvedImportedSymbol.exports ? getAccessibleSymbolChainFromSymbolTable(resolvedImportedSymbol.exports) : undefined;
+ if (accessibleSymbolsFromExports && canQualifySymbol(symbolFromSymbolTable, getQualifiedLeftMeaning(meaning))) {
+ return [symbolFromSymbolTable].concat(accessibleSymbolsFromExports);
+ }
+ }
+ }
+ });
+ }
+ if (symbol) {
+ return forEachSymbolTableInScope(enclosingDeclaration, getAccessibleSymbolChainFromSymbolTable);
+ }
+ }
+ function needsQualification(symbol, enclosingDeclaration, meaning) {
+ var qualify = false;
+ forEachSymbolTableInScope(enclosingDeclaration, function (symbolTable) {
+ // If symbol of this name is not available in the symbol table we are ok
+ if (!ts.hasProperty(symbolTable, symbol.name)) {
+ // Continue to the next symbol table
+ return false;
+ }
+ // If the symbol with this name is present it should refer to the symbol
+ var symbolFromSymbolTable = symbolTable[symbol.name];
+ if (symbolFromSymbolTable === symbol) {
+ // No need to qualify
+ return true;
+ }
+ // Qualify if the symbol from symbol table has same meaning as expected
+ symbolFromSymbolTable = (symbolFromSymbolTable.flags & 8388608 /* Alias */ && !ts.getDeclarationOfKind(symbolFromSymbolTable, 230 /* ExportSpecifier */)) ? resolveAlias(symbolFromSymbolTable) : symbolFromSymbolTable;
+ if (symbolFromSymbolTable.flags & meaning) {
+ qualify = true;
+ return true;
+ }
+ // Continue to the next symbol table
+ return false;
+ });
+ return qualify;
+ }
+ function isSymbolAccessible(symbol, enclosingDeclaration, meaning) {
+ if (symbol && enclosingDeclaration && !(symbol.flags & 262144 /* TypeParameter */)) {
+ var initialSymbol = symbol;
+ var meaningToLook = meaning;
+ while (symbol) {
+ // Symbol is accessible if it by itself is accessible
+ var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaningToLook, /*useOnlyExternalAliasing*/ false);
+ if (accessibleSymbolChain) {
+ var hasAccessibleDeclarations = hasVisibleDeclarations(accessibleSymbolChain[0]);
+ if (!hasAccessibleDeclarations) {
+ return {
+ accessibility: 1 /* NotAccessible */,
+ errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
+ errorModuleName: symbol !== initialSymbol ? symbolToString(symbol, enclosingDeclaration, 1536 /* Namespace */) : undefined
+ };
+ }
+ return hasAccessibleDeclarations;
+ }
+ // If we haven't got the accessible symbol, it doesn't mean the symbol is actually inaccessible.
+ // It could be a qualified symbol and hence verify the path
+ // e.g.:
+ // module m {
+ // export class c {
+ // }
+ // }
+ // let x: typeof m.c
+ // In the above example when we start with checking if typeof m.c symbol is accessible,
+ // we are going to see if c can be accessed in scope directly.
+ // But it can't, hence the accessible is going to be undefined, but that doesn't mean m.c is inaccessible
+ // It is accessible if the parent m is accessible because then m.c can be accessed through qualification
+ meaningToLook = getQualifiedLeftMeaning(meaning);
+ symbol = getParentOfSymbol(symbol);
+ }
+ // This could be a symbol that is not exported in the external module
+ // or it could be a symbol from different external module that is not aliased and hence cannot be named
+ var symbolExternalModule = ts.forEach(initialSymbol.declarations, getExternalModuleContainer);
+ if (symbolExternalModule) {
+ var enclosingExternalModule = getExternalModuleContainer(enclosingDeclaration);
+ if (symbolExternalModule !== enclosingExternalModule) {
+ // name from different external module that is not visible
+ return {
+ accessibility: 2 /* CannotBeNamed */,
+ errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
+ errorModuleName: symbolToString(symbolExternalModule)
+ };
+ }
+ }
+ // Just a local name that is not accessible
+ return {
+ accessibility: 1 /* NotAccessible */,
+ errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning)
+ };
+ }
+ return { accessibility: 0 /* Accessible */ };
+ function getExternalModuleContainer(declaration) {
+ for (; declaration; declaration = declaration.parent) {
+ if (hasExternalModuleSymbol(declaration)) {
+ return getSymbolOfNode(declaration);
+ }
+ }
+ }
+ }
+ function hasExternalModuleSymbol(declaration) {
+ return (declaration.kind === 218 /* ModuleDeclaration */ && declaration.name.kind === 9 /* StringLiteral */) ||
+ (declaration.kind === 248 /* SourceFile */ && ts.isExternalModule(declaration));
+ }
+ function hasVisibleDeclarations(symbol) {
+ var aliasesToMakeVisible;
+ if (ts.forEach(symbol.declarations, function (declaration) { return !getIsDeclarationVisible(declaration); })) {
+ return undefined;
+ }
+ return { accessibility: 0 /* Accessible */, aliasesToMakeVisible: aliasesToMakeVisible };
+ function getIsDeclarationVisible(declaration) {
+ if (!isDeclarationVisible(declaration)) {
+ // Mark the unexported alias as visible if its parent is visible
+ // because these kind of aliases can be used to name types in declaration file
+ var anyImportSyntax = getAnyImportSyntax(declaration);
+ if (anyImportSyntax &&
+ !(anyImportSyntax.flags & 1 /* Export */) &&
+ isDeclarationVisible(anyImportSyntax.parent)) {
+ getNodeLinks(declaration).isVisible = true;
+ if (aliasesToMakeVisible) {
+ if (!ts.contains(aliasesToMakeVisible, anyImportSyntax)) {
+ aliasesToMakeVisible.push(anyImportSyntax);
+ }
+ }
+ else {
+ aliasesToMakeVisible = [anyImportSyntax];
+ }
+ return true;
+ }
+ // Declaration is not visible
+ return false;
+ }
+ return true;
+ }
+ }
+ function isEntityNameVisible(entityName, enclosingDeclaration) {
+ // get symbol of the first identifier of the entityName
+ var meaning;
+ if (entityName.parent.kind === 154 /* TypeQuery */) {
+ // Typeof value
+ meaning = 107455 /* Value */ | 1048576 /* ExportValue */;
+ }
+ else if (entityName.kind === 135 /* QualifiedName */ || entityName.kind === 166 /* PropertyAccessExpression */ ||
+ entityName.parent.kind === 221 /* ImportEqualsDeclaration */) {
+ // Left identifier from type reference or TypeAlias
+ // Entity name of the import declaration
+ meaning = 1536 /* Namespace */;
+ }
+ else {
+ // Type Reference or TypeAlias entity = Identifier
+ meaning = 793056 /* Type */;
+ }
+ var firstIdentifier = getFirstIdentifier(entityName);
+ var symbol = resolveName(enclosingDeclaration, firstIdentifier.text, meaning, /*nodeNotFoundErrorMessage*/ undefined, /*nameArg*/ undefined);
+ // Verify if the symbol is accessible
+ return (symbol && hasVisibleDeclarations(symbol)) || {
+ accessibility: 1 /* NotAccessible */,
+ errorSymbolName: ts.getTextOfNode(firstIdentifier),
+ errorNode: firstIdentifier
+ };
+ }
+ function writeKeyword(writer, kind) {
+ writer.writeKeyword(ts.tokenToString(kind));
+ }
+ function writePunctuation(writer, kind) {
+ writer.writePunctuation(ts.tokenToString(kind));
+ }
+ function writeSpace(writer) {
+ writer.writeSpace(" ");
+ }
+ function symbolToString(symbol, enclosingDeclaration, meaning) {
+ var writer = ts.getSingleLineStringWriter();
+ getSymbolDisplayBuilder().buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning);
+ var result = writer.string();
+ ts.releaseStringWriter(writer);
+ return result;
+ }
+ function signatureToString(signature, enclosingDeclaration, flags) {
+ var writer = ts.getSingleLineStringWriter();
+ getSymbolDisplayBuilder().buildSignatureDisplay(signature, writer, enclosingDeclaration, flags);
+ var result = writer.string();
+ ts.releaseStringWriter(writer);
+ return result;
+ }
+ function typeToString(type, enclosingDeclaration, flags) {
+ var writer = ts.getSingleLineStringWriter();
+ getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
+ var result = writer.string();
+ ts.releaseStringWriter(writer);
+ var maxLength = compilerOptions.noErrorTruncation || flags & 4 /* NoTruncation */ ? undefined : 100;
+ if (maxLength && result.length >= maxLength) {
+ result = result.substr(0, maxLength - "...".length) + "...";
+ }
+ return result;
+ }
+ function getTypeAliasForTypeLiteral(type) {
+ if (type.symbol && type.symbol.flags & 2048 /* TypeLiteral */) {
+ var node = type.symbol.declarations[0].parent;
+ while (node.kind === 160 /* ParenthesizedType */) {
+ node = node.parent;
+ }
+ if (node.kind === 216 /* TypeAliasDeclaration */) {
+ return getSymbolOfNode(node);
+ }
+ }
+ return undefined;
+ }
+ function getSymbolDisplayBuilder() {
+ function getNameOfSymbol(symbol) {
+ if (symbol.declarations && symbol.declarations.length) {
+ var declaration = symbol.declarations[0];
+ if (declaration.name) {
+ return ts.declarationNameToString(declaration.name);
+ }
+ switch (declaration.kind) {
+ case 186 /* ClassExpression */:
+ return "(Anonymous class)";
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return "(Anonymous function)";
+ }
+ }
+ return symbol.name;
+ }
+ /**
+ * Writes only the name of the symbol out to the writer. Uses the original source text
+ * for the name of the symbol if it is available to match how the user inputted the name.
+ */
+ function appendSymbolNameOnly(symbol, writer) {
+ writer.writeSymbol(getNameOfSymbol(symbol), symbol);
+ }
+ /**
+ * Enclosing declaration is optional when we don't want to get qualified name in the enclosing declaration scope
+ * Meaning needs to be specified if the enclosing declaration is given
+ */
+ function buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning, flags, typeFlags) {
+ var parentSymbol;
+ function appendParentTypeArgumentsAndSymbolName(symbol) {
+ if (parentSymbol) {
+ // Write type arguments of instantiated class/interface here
+ if (flags & 1 /* WriteTypeParametersOrArguments */) {
+ if (symbol.flags & 16777216 /* Instantiated */) {
+ buildDisplayForTypeArgumentsAndDelimiters(getTypeParametersOfClassOrInterface(parentSymbol), symbol.mapper, writer, enclosingDeclaration);
+ }
+ else {
+ buildTypeParameterDisplayFromSymbol(parentSymbol, writer, enclosingDeclaration);
+ }
+ }
+ writePunctuation(writer, 21 /* DotToken */);
+ }
+ parentSymbol = symbol;
+ appendSymbolNameOnly(symbol, writer);
+ }
+ // Let the writer know we just wrote out a symbol. The declaration emitter writer uses
+ // this to determine if an import it has previously seen (and not written out) needs
+ // to be written to the file once the walk of the tree is complete.
+ //
+ // NOTE(cyrusn): This approach feels somewhat unfortunate. A simple pass over the tree
+ // up front (for example, during checking) could determine if we need to emit the imports
+ // and we could then access that data during declaration emit.
+ writer.trackSymbol(symbol, enclosingDeclaration, meaning);
+ function walkSymbol(symbol, meaning) {
+ if (symbol) {
+ var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2 /* UseOnlyExternalAliasing */));
+ if (!accessibleSymbolChain ||
+ needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
+ // Go up and add our parent.
+ walkSymbol(getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol), getQualifiedLeftMeaning(meaning));
+ }
+ if (accessibleSymbolChain) {
+ for (var _i = 0; _i < accessibleSymbolChain.length; _i++) {
+ var accessibleSymbol = accessibleSymbolChain[_i];
+ appendParentTypeArgumentsAndSymbolName(accessibleSymbol);
+ }
+ }
+ else {
+ // If we didn't find accessible symbol chain for this symbol, break if this is external module
+ if (!parentSymbol && ts.forEach(symbol.declarations, hasExternalModuleSymbol)) {
+ return;
+ }
+ // if this is anonymous type break
+ if (symbol.flags & 2048 /* TypeLiteral */ || symbol.flags & 4096 /* ObjectLiteral */) {
+ return;
+ }
+ appendParentTypeArgumentsAndSymbolName(symbol);
+ }
+ }
+ }
+ // Get qualified name if the symbol is not a type parameter
+ // and there is an enclosing declaration or we specifically
+ // asked for it
+ var isTypeParameter = symbol.flags & 262144 /* TypeParameter */;
+ var typeFormatFlag = 128 /* UseFullyQualifiedType */ & typeFlags;
+ if (!isTypeParameter && (enclosingDeclaration || typeFormatFlag)) {
+ walkSymbol(symbol, meaning);
+ return;
+ }
+ return appendParentTypeArgumentsAndSymbolName(symbol);
+ }
+ function buildTypeDisplay(type, writer, enclosingDeclaration, globalFlags, symbolStack) {
+ var globalFlagsToPass = globalFlags & 16 /* WriteOwnNameForAnyLike */;
+ var inObjectTypeLiteral = false;
+ return writeType(type, globalFlags);
+ function writeType(type, flags) {
+ // Write undefined/null type as any
+ if (type.flags & 16777343 /* Intrinsic */) {
+ // Special handling for unknown / resolving types, they should show up as any and not unknown or __resolving
+ writer.writeKeyword(!(globalFlags & 16 /* WriteOwnNameForAnyLike */) && isTypeAny(type)
+ ? "any"
+ : type.intrinsicName);
+ }
+ else if (type.flags & 33554432 /* ThisType */) {
+ if (inObjectTypeLiteral) {
+ writer.reportInaccessibleThisError();
+ }
+ writer.writeKeyword("this");
+ }
+ else if (type.flags & 4096 /* Reference */) {
+ writeTypeReference(type, flags);
+ }
+ else if (type.flags & (1024 /* Class */ | 2048 /* Interface */ | 128 /* Enum */ | 512 /* TypeParameter */)) {
+ // The specified symbol flags need to be reinterpreted as type flags
+ buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 793056 /* Type */, 0 /* None */, flags);
+ }
+ else if (type.flags & 8192 /* Tuple */) {
+ writeTupleType(type);
+ }
+ else if (type.flags & 49152 /* UnionOrIntersection */) {
+ writeUnionOrIntersectionType(type, flags);
+ }
+ else if (type.flags & 65536 /* Anonymous */) {
+ writeAnonymousType(type, flags);
+ }
+ else if (type.flags & 256 /* StringLiteral */) {
+ writer.writeStringLiteral(type.text);
+ }
+ else {
+ // Should never get here
+ // { ... }
+ writePunctuation(writer, 15 /* OpenBraceToken */);
+ writeSpace(writer);
+ writePunctuation(writer, 22 /* DotDotDotToken */);
+ writeSpace(writer);
+ writePunctuation(writer, 16 /* CloseBraceToken */);
+ }
+ }
+ function writeTypeList(types, delimiter) {
+ for (var i = 0; i < types.length; i++) {
+ if (i > 0) {
+ if (delimiter !== 24 /* CommaToken */) {
+ writeSpace(writer);
+ }
+ writePunctuation(writer, delimiter);
+ writeSpace(writer);
+ }
+ writeType(types[i], delimiter === 24 /* CommaToken */ ? 0 /* None */ : 64 /* InElementType */);
+ }
+ }
+ function writeSymbolTypeReference(symbol, typeArguments, pos, end, flags) {
+ // Unnamed function expressions and arrow functions have reserved names that we don't want to display
+ if (symbol.flags & 32 /* Class */ || !isReservedMemberName(symbol.name)) {
+ buildSymbolDisplay(symbol, writer, enclosingDeclaration, 793056 /* Type */, 0 /* None */, flags);
+ }
+ if (pos < end) {
+ writePunctuation(writer, 25 /* LessThanToken */);
+ writeType(typeArguments[pos++], 0 /* None */);
+ while (pos < end) {
+ writePunctuation(writer, 24 /* CommaToken */);
+ writeSpace(writer);
+ writeType(typeArguments[pos++], 0 /* None */);
+ }
+ writePunctuation(writer, 27 /* GreaterThanToken */);
+ }
+ }
+ function writeTypeReference(type, flags) {
+ var typeArguments = type.typeArguments || emptyArray;
+ if (type.target === globalArrayType && !(flags & 1 /* WriteArrayAsGenericType */)) {
+ writeType(typeArguments[0], 64 /* InElementType */);
+ writePunctuation(writer, 19 /* OpenBracketToken */);
+ writePunctuation(writer, 20 /* CloseBracketToken */);
+ }
+ else {
+ // Write the type reference in the format f<A>.g<B>.C<X, Y> where A and B are type arguments
+ // for outer type parameters, and f and g are the respective declaring containers of those
+ // type parameters.
+ var outerTypeParameters = type.target.outerTypeParameters;
+ var i = 0;
+ if (outerTypeParameters) {
+ var length_1 = outerTypeParameters.length;
+ while (i < length_1) {
+ // Find group of type arguments for type parameters with the same declaring container.
+ var start = i;
+ var parent_3 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
+ do {
+ i++;
+ } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_3);
+ // When type parameters are their own type arguments for the whole group (i.e. we have
+ // the default outer type arguments), we don't show the group.
+ if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
+ writeSymbolTypeReference(parent_3, typeArguments, start, i, flags);
+ writePunctuation(writer, 21 /* DotToken */);
+ }
+ }
+ }
+ var typeParameterCount = (type.target.typeParameters || emptyArray).length;
+ writeSymbolTypeReference(type.symbol, typeArguments, i, typeParameterCount, flags);
+ }
+ }
+ function writeTupleType(type) {
+ writePunctuation(writer, 19 /* OpenBracketToken */);
+ writeTypeList(type.elementTypes, 24 /* CommaToken */);
+ writePunctuation(writer, 20 /* CloseBracketToken */);
+ }
+ function writeUnionOrIntersectionType(type, flags) {
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 17 /* OpenParenToken */);
+ }
+ writeTypeList(type.types, type.flags & 16384 /* Union */ ? 47 /* BarToken */ : 46 /* AmpersandToken */);
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 18 /* CloseParenToken */);
+ }
+ }
+ function writeAnonymousType(type, flags) {
+ var symbol = type.symbol;
+ if (symbol) {
+ // Always use 'typeof T' for type of class, enum, and module objects
+ if (symbol.flags & (32 /* Class */ | 384 /* Enum */ | 512 /* ValueModule */)) {
+ writeTypeofSymbol(type, flags);
+ }
+ else if (shouldWriteTypeOfFunctionSymbol()) {
+ writeTypeofSymbol(type, flags);
+ }
+ else if (ts.contains(symbolStack, symbol)) {
+ // If type is an anonymous type literal in a type alias declaration, use type alias name
+ var typeAlias = getTypeAliasForTypeLiteral(type);
+ if (typeAlias) {
+ // The specified symbol flags need to be reinterpreted as type flags
+ buildSymbolDisplay(typeAlias, writer, enclosingDeclaration, 793056 /* Type */, 0 /* None */, flags);
+ }
+ else {
+ // Recursive usage, use any
+ writeKeyword(writer, 117 /* AnyKeyword */);
+ }
+ }
+ else {
+ // Since instantiations of the same anonymous type have the same symbol, tracking symbols instead
+ // of types allows us to catch circular references to instantiations of the same anonymous type
+ if (!symbolStack) {
+ symbolStack = [];
+ }
+ symbolStack.push(symbol);
+ writeLiteralType(type, flags);
+ symbolStack.pop();
+ }
+ }
+ else {
+ // Anonymous types with no symbol are never circular
+ writeLiteralType(type, flags);
+ }
+ function shouldWriteTypeOfFunctionSymbol() {
+ var isStaticMethodSymbol = !!(symbol.flags & 8192 /* Method */ &&
+ ts.forEach(symbol.declarations, function (declaration) { return declaration.flags & 128 /* Static */; }));
+ var isNonLocalFunctionSymbol = !!(symbol.flags & 16 /* Function */) &&
+ (symbol.parent ||
+ ts.forEach(symbol.declarations, function (declaration) {
+ return declaration.parent.kind === 248 /* SourceFile */ || declaration.parent.kind === 219 /* ModuleBlock */;
+ }));
+ if (isStaticMethodSymbol || isNonLocalFunctionSymbol) {
+ // typeof is allowed only for static/non local functions
+ return !!(flags & 2 /* UseTypeOfFunction */) ||
+ (ts.contains(symbolStack, symbol)); // it is type of the symbol uses itself recursively
+ }
+ }
+ }
+ function writeTypeofSymbol(type, typeFormatFlags) {
+ writeKeyword(writer, 101 /* TypeOfKeyword */);
+ writeSpace(writer);
+ buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 107455 /* Value */, 0 /* None */, typeFormatFlags);
+ }
+ function getIndexerParameterName(type, indexKind, fallbackName) {
+ var declaration = getIndexDeclarationOfSymbol(type.symbol, indexKind);
+ if (!declaration) {
+ // declaration might not be found if indexer was added from the contextual type.
+ // in this case use fallback name
+ return fallbackName;
+ }
+ ts.Debug.assert(declaration.parameters.length !== 0);
+ return ts.declarationNameToString(declaration.parameters[0].name);
+ }
+ function writeLiteralType(type, flags) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (!resolved.properties.length && !resolved.stringIndexType && !resolved.numberIndexType) {
+ if (!resolved.callSignatures.length && !resolved.constructSignatures.length) {
+ writePunctuation(writer, 15 /* OpenBraceToken */);
+ writePunctuation(writer, 16 /* CloseBraceToken */);
+ return;
+ }
+ if (resolved.callSignatures.length === 1 && !resolved.constructSignatures.length) {
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 17 /* OpenParenToken */);
+ }
+ buildSignatureDisplay(resolved.callSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8 /* WriteArrowStyleSignature */, symbolStack);
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 18 /* CloseParenToken */);
+ }
+ return;
+ }
+ if (resolved.constructSignatures.length === 1 && !resolved.callSignatures.length) {
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 17 /* OpenParenToken */);
+ }
+ writeKeyword(writer, 92 /* NewKeyword */);
+ writeSpace(writer);
+ buildSignatureDisplay(resolved.constructSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8 /* WriteArrowStyleSignature */, symbolStack);
+ if (flags & 64 /* InElementType */) {
+ writePunctuation(writer, 18 /* CloseParenToken */);
+ }
+ return;
+ }
+ }
+ var saveInObjectTypeLiteral = inObjectTypeLiteral;
+ inObjectTypeLiteral = true;
+ writePunctuation(writer, 15 /* OpenBraceToken */);
+ writer.writeLine();
+ writer.increaseIndent();
+ for (var _i = 0, _a = resolved.callSignatures; _i < _a.length; _i++) {
+ var signature = _a[_i];
+ buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, symbolStack);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ for (var _b = 0, _c = resolved.constructSignatures; _b < _c.length; _b++) {
+ var signature = _c[_b];
+ writeKeyword(writer, 92 /* NewKeyword */);
+ writeSpace(writer);
+ buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, symbolStack);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ if (resolved.stringIndexType) {
+ // [x: string]:
+ writePunctuation(writer, 19 /* OpenBracketToken */);
+ writer.writeParameter(getIndexerParameterName(resolved, 0 /* String */, /*fallbackName*/ "x"));
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ writeKeyword(writer, 130 /* StringKeyword */);
+ writePunctuation(writer, 20 /* CloseBracketToken */);
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ writeType(resolved.stringIndexType, 0 /* None */);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ if (resolved.numberIndexType) {
+ // [x: number]:
+ writePunctuation(writer, 19 /* OpenBracketToken */);
+ writer.writeParameter(getIndexerParameterName(resolved, 1 /* Number */, /*fallbackName*/ "x"));
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ writeKeyword(writer, 128 /* NumberKeyword */);
+ writePunctuation(writer, 20 /* CloseBracketToken */);
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ writeType(resolved.numberIndexType, 0 /* None */);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ for (var _d = 0, _e = resolved.properties; _d < _e.length; _d++) {
+ var p = _e[_d];
+ var t = getTypeOfSymbol(p);
+ if (p.flags & (16 /* Function */ | 8192 /* Method */) && !getPropertiesOfObjectType(t).length) {
+ var signatures = getSignaturesOfType(t, 0 /* Call */);
+ for (var _f = 0; _f < signatures.length; _f++) {
+ var signature = signatures[_f];
+ buildSymbolDisplay(p, writer);
+ if (p.flags & 536870912 /* Optional */) {
+ writePunctuation(writer, 53 /* QuestionToken */);
+ }
+ buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, symbolStack);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ }
+ else {
+ buildSymbolDisplay(p, writer);
+ if (p.flags & 536870912 /* Optional */) {
+ writePunctuation(writer, 53 /* QuestionToken */);
+ }
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ writeType(t, 0 /* None */);
+ writePunctuation(writer, 23 /* SemicolonToken */);
+ writer.writeLine();
+ }
+ }
+ writer.decreaseIndent();
+ writePunctuation(writer, 16 /* CloseBraceToken */);
+ inObjectTypeLiteral = saveInObjectTypeLiteral;
+ }
+ }
+ function buildTypeParameterDisplayFromSymbol(symbol, writer, enclosingDeclaraiton, flags) {
+ var targetSymbol = getTargetSymbol(symbol);
+ if (targetSymbol.flags & 32 /* Class */ || targetSymbol.flags & 64 /* Interface */ || targetSymbol.flags & 524288 /* TypeAlias */) {
+ buildDisplayForTypeParametersAndDelimiters(getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol), writer, enclosingDeclaraiton, flags);
+ }
+ }
+ function buildTypeParameterDisplay(tp, writer, enclosingDeclaration, flags, symbolStack) {
+ appendSymbolNameOnly(tp.symbol, writer);
+ var constraint = getConstraintOfTypeParameter(tp);
+ if (constraint) {
+ writeSpace(writer);
+ writeKeyword(writer, 83 /* ExtendsKeyword */);
+ writeSpace(writer);
+ buildTypeDisplay(constraint, writer, enclosingDeclaration, flags, symbolStack);
+ }
+ }
+ function buildParameterDisplay(p, writer, enclosingDeclaration, flags, symbolStack) {
+ var parameterNode = p.valueDeclaration;
+ if (ts.isRestParameter(parameterNode)) {
+ writePunctuation(writer, 22 /* DotDotDotToken */);
+ }
+ appendSymbolNameOnly(p, writer);
+ if (isOptionalParameter(parameterNode)) {
+ writePunctuation(writer, 53 /* QuestionToken */);
+ }
+ writePunctuation(writer, 54 /* ColonToken */);
+ writeSpace(writer);
+ buildTypeDisplay(getTypeOfSymbol(p), writer, enclosingDeclaration, flags, symbolStack);
+ }
+ function buildDisplayForTypeParametersAndDelimiters(typeParameters, writer, enclosingDeclaration, flags, symbolStack) {
+ if (typeParameters && typeParameters.length) {
+ writePunctuation(writer, 25 /* LessThanToken */);
+ for (var i = 0; i < typeParameters.length; i++) {
+ if (i > 0) {
+ writePunctuation(writer, 24 /* CommaToken */);
+ writeSpace(writer);
+ }
+ buildTypeParameterDisplay(typeParameters[i], writer, enclosingDeclaration, flags, symbolStack);
+ }
+ writePunctuation(writer, 27 /* GreaterThanToken */);
+ }
+ }
+ function buildDisplayForTypeArgumentsAndDelimiters(typeParameters, mapper, writer, enclosingDeclaration, flags, symbolStack) {
+ if (typeParameters && typeParameters.length) {
+ writePunctuation(writer, 25 /* LessThanToken */);
+ for (var i = 0; i < typeParameters.length; i++) {
+ if (i > 0) {
+ writePunctuation(writer, 24 /* CommaToken */);
+ writeSpace(writer);
+ }
+ buildTypeDisplay(mapper(typeParameters[i]), writer, enclosingDeclaration, 0 /* None */);
+ }
+ writePunctuation(writer, 27 /* GreaterThanToken */);
+ }
+ }
+ function buildDisplayForParametersAndDelimiters(parameters, writer, enclosingDeclaration, flags, symbolStack) {
+ writePunctuation(writer, 17 /* OpenParenToken */);
+ for (var i = 0; i < parameters.length; i++) {
+ if (i > 0) {
+ writePunctuation(writer, 24 /* CommaToken */);
+ writeSpace(writer);
+ }
+ buildParameterDisplay(parameters[i], writer, enclosingDeclaration, flags, symbolStack);
+ }
+ writePunctuation(writer, 18 /* CloseParenToken */);
+ }
+ function buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack) {
+ if (flags & 8 /* WriteArrowStyleSignature */) {
+ writeSpace(writer);
+ writePunctuation(writer, 34 /* EqualsGreaterThanToken */);
+ }
+ else {
+ writePunctuation(writer, 54 /* ColonToken */);
+ }
+ writeSpace(writer);
+ var returnType;
+ if (signature.typePredicate) {
+ writer.writeParameter(signature.typePredicate.parameterName);
+ writeSpace(writer);
+ writeKeyword(writer, 124 /* IsKeyword */);
+ writeSpace(writer);
+ returnType = signature.typePredicate.type;
+ }
+ else {
+ returnType = getReturnTypeOfSignature(signature);
+ }
+ buildTypeDisplay(returnType, writer, enclosingDeclaration, flags, symbolStack);
+ }
+ function buildSignatureDisplay(signature, writer, enclosingDeclaration, flags, symbolStack) {
+ if (signature.target && (flags & 32 /* WriteTypeArgumentsOfSignature */)) {
+ // Instantiated signature, write type arguments instead
+ // This is achieved by passing in the mapper separately
+ buildDisplayForTypeArgumentsAndDelimiters(signature.target.typeParameters, signature.mapper, writer, enclosingDeclaration);
+ }
+ else {
+ buildDisplayForTypeParametersAndDelimiters(signature.typeParameters, writer, enclosingDeclaration, flags, symbolStack);
+ }
+ buildDisplayForParametersAndDelimiters(signature.parameters, writer, enclosingDeclaration, flags, symbolStack);
+ buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack);
+ }
+ return _displayBuilder || (_displayBuilder = {
+ buildSymbolDisplay: buildSymbolDisplay,
+ buildTypeDisplay: buildTypeDisplay,
+ buildTypeParameterDisplay: buildTypeParameterDisplay,
+ buildParameterDisplay: buildParameterDisplay,
+ buildDisplayForParametersAndDelimiters: buildDisplayForParametersAndDelimiters,
+ buildDisplayForTypeParametersAndDelimiters: buildDisplayForTypeParametersAndDelimiters,
+ buildTypeParameterDisplayFromSymbol: buildTypeParameterDisplayFromSymbol,
+ buildSignatureDisplay: buildSignatureDisplay,
+ buildReturnTypeDisplay: buildReturnTypeDisplay
+ });
+ }
+ function isDeclarationVisible(node) {
+ function getContainingExternalModule(node) {
+ for (; node; node = node.parent) {
+ if (node.kind === 218 /* ModuleDeclaration */) {
+ if (node.name.kind === 9 /* StringLiteral */) {
+ return node;
+ }
+ }
+ else if (node.kind === 248 /* SourceFile */) {
+ return ts.isExternalModule(node) ? node : undefined;
+ }
+ }
+ ts.Debug.fail("getContainingModule cant reach here");
+ }
+ function isUsedInExportAssignment(node) {
+ // Get source File and see if it is external module and has export assigned symbol
+ var externalModule = getContainingExternalModule(node);
+ var exportAssignmentSymbol;
+ var resolvedExportSymbol;
+ if (externalModule) {
+ // This is export assigned symbol node
+ var externalModuleSymbol = getSymbolOfNode(externalModule);
+ exportAssignmentSymbol = getExportAssignmentSymbol(externalModuleSymbol);
+ var symbolOfNode = getSymbolOfNode(node);
+ if (isSymbolUsedInExportAssignment(symbolOfNode)) {
+ return true;
+ }
+ // if symbolOfNode is alias declaration, resolve the symbol declaration and check
+ if (symbolOfNode.flags & 8388608 /* Alias */) {
+ return isSymbolUsedInExportAssignment(resolveAlias(symbolOfNode));
+ }
+ }
+ // Check if the symbol is used in export assignment
+ function isSymbolUsedInExportAssignment(symbol) {
+ if (exportAssignmentSymbol === symbol) {
+ return true;
+ }
+ if (exportAssignmentSymbol && !!(exportAssignmentSymbol.flags & 8388608 /* Alias */)) {
+ // if export assigned symbol is alias declaration, resolve the alias
+ resolvedExportSymbol = resolvedExportSymbol || resolveAlias(exportAssignmentSymbol);
+ if (resolvedExportSymbol === symbol) {
+ return true;
+ }
+ // Container of resolvedExportSymbol is visible
+ return ts.forEach(resolvedExportSymbol.declarations, function (current) {
+ while (current) {
+ if (current === node) {
+ return true;
+ }
+ current = current.parent;
+ }
+ });
+ }
+ }
+ }
+ function determineIfDeclarationIsVisible() {
+ switch (node.kind) {
+ case 163 /* BindingElement */:
+ return isDeclarationVisible(node.parent.parent);
+ case 211 /* VariableDeclaration */:
+ if (ts.isBindingPattern(node.name) &&
+ !node.name.elements.length) {
+ // If the binding pattern is empty, this variable declaration is not visible
+ return false;
+ }
+ // Otherwise fall through
+ case 218 /* ModuleDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ var parent_4 = getDeclarationContainer(node);
+ // If the node is not exported or it is not ambient module element (except import declaration)
+ if (!(ts.getCombinedNodeFlags(node) & 1 /* Export */) &&
+ !(node.kind !== 221 /* ImportEqualsDeclaration */ && parent_4.kind !== 248 /* SourceFile */ && ts.isInAmbientContext(parent_4))) {
+ return isGlobalSourceFile(parent_4);
+ }
+ // Exported members/ambient module elements (exception import declaration) are visible if parent is visible
+ return isDeclarationVisible(parent_4);
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (node.flags & (32 /* Private */ | 64 /* Protected */)) {
+ // Private/protected properties/methods are not visible
+ return false;
+ }
+ // Public properties/methods are visible if its parents are visible, so let it fall into next case statement
+ case 144 /* Constructor */:
+ case 148 /* ConstructSignature */:
+ case 147 /* CallSignature */:
+ case 149 /* IndexSignature */:
+ case 138 /* Parameter */:
+ case 219 /* ModuleBlock */:
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 155 /* TypeLiteral */:
+ case 151 /* TypeReference */:
+ case 156 /* ArrayType */:
+ case 157 /* TupleType */:
+ case 158 /* UnionType */:
+ case 159 /* IntersectionType */:
+ case 160 /* ParenthesizedType */:
+ return isDeclarationVisible(node.parent);
+ // Default binding, import specifier and namespace import is visible
+ // only on demand so by default it is not visible
+ case 223 /* ImportClause */:
+ case 224 /* NamespaceImport */:
+ case 226 /* ImportSpecifier */:
+ return false;
+ // Type parameters are always visible
+ case 137 /* TypeParameter */:
+ // Source file is always visible
+ case 248 /* SourceFile */:
+ return true;
+ // Export assignements do not create name bindings outside the module
+ case 227 /* ExportAssignment */:
+ return false;
+ default:
+ ts.Debug.fail("isDeclarationVisible unknown: SyntaxKind: " + node.kind);
+ }
+ }
+ if (node) {
+ var links = getNodeLinks(node);
+ if (links.isVisible === undefined) {
+ links.isVisible = !!determineIfDeclarationIsVisible();
+ }
+ return links.isVisible;
+ }
+ }
+ function collectLinkedAliases(node) {
+ var exportSymbol;
+ if (node.parent && node.parent.kind === 227 /* ExportAssignment */) {
+ exportSymbol = resolveName(node.parent, node.text, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */ | 8388608 /* Alias */, ts.Diagnostics.Cannot_find_name_0, node);
+ }
+ else if (node.parent.kind === 230 /* ExportSpecifier */) {
+ var exportSpecifier = node.parent;
+ exportSymbol = exportSpecifier.parent.parent.moduleSpecifier ?
+ getExternalModuleMember(exportSpecifier.parent.parent, exportSpecifier) :
+ resolveEntityName(exportSpecifier.propertyName || exportSpecifier.name, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */ | 8388608 /* Alias */);
+ }
+ var result = [];
+ if (exportSymbol) {
+ buildVisibleNodeList(exportSymbol.declarations);
+ }
+ return result;
+ function buildVisibleNodeList(declarations) {
+ ts.forEach(declarations, function (declaration) {
+ getNodeLinks(declaration).isVisible = true;
+ var resultNode = getAnyImportSyntax(declaration) || declaration;
+ if (!ts.contains(result, resultNode)) {
+ result.push(resultNode);
+ }
+ if (ts.isInternalModuleImportEqualsDeclaration(declaration)) {
+ // Add the referenced top container visible
+ var internalModuleReference = declaration.moduleReference;
+ var firstIdentifier = getFirstIdentifier(internalModuleReference);
+ var importSymbol = resolveName(declaration, firstIdentifier.text, 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */, ts.Diagnostics.Cannot_find_name_0, firstIdentifier);
+ buildVisibleNodeList(importSymbol.declarations);
+ }
+ });
+ }
+ }
+ /**
+ * Push an entry on the type resolution stack. If an entry with the given target and the given property name
+ * is already on the stack, and no entries in between already have a type, then a circularity has occurred.
+ * In this case, the result values of the existing entry and all entries pushed after it are changed to false,
+ * and the value false is returned. Otherwise, the new entry is just pushed onto the stack, and true is returned.
+ * In order to see if the same query has already been done before, the target object and the propertyName both
+ * must match the one passed in.
+ *
+ * @param target The symbol, type, or signature whose type is being queried
+ * @param propertyName The property name that should be used to query the target for its type
+ */
+ function pushTypeResolution(target, propertyName) {
+ var resolutionCycleStartIndex = findResolutionCycleStartIndex(target, propertyName);
+ if (resolutionCycleStartIndex >= 0) {
+ // A cycle was found
+ var length_2 = resolutionTargets.length;
+ for (var i = resolutionCycleStartIndex; i < length_2; i++) {
+ resolutionResults[i] = false;
+ }
+ return false;
+ }
+ resolutionTargets.push(target);
+ resolutionResults.push(true);
+ resolutionPropertyNames.push(propertyName);
+ return true;
+ }
+ function findResolutionCycleStartIndex(target, propertyName) {
+ for (var i = resolutionTargets.length - 1; i >= 0; i--) {
+ if (hasType(resolutionTargets[i], resolutionPropertyNames[i])) {
+ return -1;
+ }
+ if (resolutionTargets[i] === target && resolutionPropertyNames[i] === propertyName) {
+ return i;
+ }
+ }
+ return -1;
+ }
+ function hasType(target, propertyName) {
+ if (propertyName === 0 /* Type */) {
+ return getSymbolLinks(target).type;
+ }
+ if (propertyName === 2 /* DeclaredType */) {
+ return getSymbolLinks(target).declaredType;
+ }
+ if (propertyName === 1 /* ResolvedBaseConstructorType */) {
+ ts.Debug.assert(!!(target.flags & 1024 /* Class */));
+ return target.resolvedBaseConstructorType;
+ }
+ if (propertyName === 3 /* ResolvedReturnType */) {
+ return target.resolvedReturnType;
+ }
+ ts.Debug.fail("Unhandled TypeSystemPropertyName " + propertyName);
+ }
+ // Pop an entry from the type resolution stack and return its associated result value. The result value will
+ // be true if no circularities were detected, or false if a circularity was found.
+ function popTypeResolution() {
+ resolutionTargets.pop();
+ resolutionPropertyNames.pop();
+ return resolutionResults.pop();
+ }
+ function getDeclarationContainer(node) {
+ node = ts.getRootDeclaration(node);
+ // Parent chain:
+ // VaribleDeclaration -> VariableDeclarationList -> VariableStatement -> 'Declaration Container'
+ return node.kind === 211 /* VariableDeclaration */ ? node.parent.parent.parent : node.parent;
+ }
+ function getTypeOfPrototypeProperty(prototype) {
+ // TypeScript 1.0 spec (April 2014): 8.4
+ // Every class automatically contains a static property member named 'prototype',
+ // the type of which is an instantiation of the class type with type Any supplied as a type argument for each type parameter.
+ // It is an error to explicitly declare a static property member with the name 'prototype'.
+ var classType = getDeclaredTypeOfSymbol(prototype.parent);
+ return classType.typeParameters ? createTypeReference(classType, ts.map(classType.typeParameters, function (_) { return anyType; })) : classType;
+ }
+ // Return the type of the given property in the given type, or undefined if no such property exists
+ function getTypeOfPropertyOfType(type, name) {
+ var prop = getPropertyOfType(type, name);
+ return prop ? getTypeOfSymbol(prop) : undefined;
+ }
+ function isTypeAny(type) {
+ return type && (type.flags & 1 /* Any */) !== 0;
+ }
+ // Return the type of a binding element parent. We check SymbolLinks first to see if a type has been
+ // assigned by contextual typing.
+ function getTypeForBindingElementParent(node) {
+ var symbol = getSymbolOfNode(node);
+ return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node);
+ }
+ // Return the inferred type for a binding element
+ function getTypeForBindingElement(declaration) {
+ var pattern = declaration.parent;
+ var parentType = getTypeForBindingElementParent(pattern.parent);
+ // If parent has the unknown (error) type, then so does this binding element
+ if (parentType === unknownType) {
+ return unknownType;
+ }
+ // If no type was specified or inferred for parent, or if the specified or inferred type is any,
+ // infer from the initializer of the binding element if one is present. Otherwise, go with the
+ // undefined or any type of the parent.
+ if (!parentType || isTypeAny(parentType)) {
+ if (declaration.initializer) {
+ return checkExpressionCached(declaration.initializer);
+ }
+ return parentType;
+ }
+ var type;
+ if (pattern.kind === 161 /* ObjectBindingPattern */) {
+ // Use explicitly specified property name ({ p: xxx } form), or otherwise the implied name ({ p } form)
+ var name_10 = declaration.propertyName || declaration.name;
+ // Use type of the specified property, or otherwise, for a numeric name, the type of the numeric index signature,
+ // or otherwise the type of the string index signature.
+ type = getTypeOfPropertyOfType(parentType, name_10.text) ||
+ isNumericLiteralName(name_10.text) && getIndexTypeOfType(parentType, 1 /* Number */) ||
+ getIndexTypeOfType(parentType, 0 /* String */);
+ if (!type) {
+ error(name_10, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_10));
+ return unknownType;
+ }
+ }
+ else {
+ // This elementType will be used if the specific property corresponding to this index is not
+ // present (aka the tuple element property). This call also checks that the parentType is in
+ // fact an iterable or array (depending on target language).
+ var elementType = checkIteratedTypeOrElementType(parentType, pattern, /*allowStringInput*/ false);
+ if (!declaration.dotDotDotToken) {
+ // Use specific property type when parent is a tuple or numeric index type when parent is an array
+ var propName = "" + ts.indexOf(pattern.elements, declaration);
+ type = isTupleLikeType(parentType)
+ ? getTypeOfPropertyOfType(parentType, propName)
+ : elementType;
+ if (!type) {
+ if (isTupleType(parentType)) {
+ error(declaration, ts.Diagnostics.Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2, typeToString(parentType), parentType.elementTypes.length, pattern.elements.length);
+ }
+ else {
+ error(declaration, ts.Diagnostics.Type_0_has_no_property_1, typeToString(parentType), propName);
+ }
+ return unknownType;
+ }
+ }
+ else {
+ // Rest element has an array type with the same element type as the parent type
+ type = createArrayType(elementType);
+ }
+ }
+ return type;
+ }
+ // Return the inferred type for a variable, parameter, or property declaration
+ function getTypeForVariableLikeDeclaration(declaration) {
+ // A variable declared in a for..in statement is always of type any
+ if (declaration.parent.parent.kind === 200 /* ForInStatement */) {
+ return anyType;
+ }
+ if (declaration.parent.parent.kind === 201 /* ForOfStatement */) {
+ // checkRightHandSideOfForOf will return undefined if the for-of expression type was
+ // missing properties/signatures required to get its iteratedType (like
+ // [Symbol.iterator] or next). This may be because we accessed properties from anyType,
+ // or it may have led to an error inside getElementTypeOfIterable.
+ return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
+ }
+ if (ts.isBindingPattern(declaration.parent)) {
+ return getTypeForBindingElement(declaration);
+ }
+ // Use type from type annotation if one is present
+ if (declaration.type) {
+ return getTypeFromTypeNode(declaration.type);
+ }
+ if (declaration.kind === 138 /* Parameter */) {
+ var func = declaration.parent;
+ // For a parameter of a set accessor, use the type of the get accessor if one is present
+ if (func.kind === 146 /* SetAccessor */ && !ts.hasDynamicName(func)) {
+ var getter = ts.getDeclarationOfKind(declaration.parent.symbol, 145 /* GetAccessor */);
+ if (getter) {
+ return getReturnTypeOfSignature(getSignatureFromDeclaration(getter));
+ }
+ }
+ // Use contextual parameter type if one is available
+ var type = getContextuallyTypedParameterType(declaration);
+ if (type) {
+ return type;
+ }
+ }
+ // Use the type of the initializer expression if one is present
+ if (declaration.initializer) {
+ return checkExpressionCached(declaration.initializer);
+ }
+ // If it is a short-hand property assignment, use the type of the identifier
+ if (declaration.kind === 246 /* ShorthandPropertyAssignment */) {
+ return checkIdentifier(declaration.name);
+ }
+ // If the declaration specifies a binding pattern, use the type implied by the binding pattern
+ if (ts.isBindingPattern(declaration.name)) {
+ return getTypeFromBindingPattern(declaration.name, /*includePatternInType*/ false);
+ }
+ // No type specified and nothing can be inferred
+ return undefined;
+ }
+ // Return the type implied by a binding pattern element. This is the type of the initializer of the element if
+ // one is present. Otherwise, if the element is itself a binding pattern, it is the type implied by the binding
+ // pattern. Otherwise, it is the type any.
+ function getTypeFromBindingElement(element, includePatternInType) {
+ if (element.initializer) {
+ return getWidenedType(checkExpressionCached(element.initializer));
+ }
+ if (ts.isBindingPattern(element.name)) {
+ return getTypeFromBindingPattern(element.name, includePatternInType);
+ }
+ return anyType;
+ }
+ // Return the type implied by an object binding pattern
+ function getTypeFromObjectBindingPattern(pattern, includePatternInType) {
+ var members = {};
+ ts.forEach(pattern.elements, function (e) {
+ var flags = 4 /* Property */ | 67108864 /* Transient */ | (e.initializer ? 536870912 /* Optional */ : 0);
+ var name = e.propertyName || e.name;
+ var symbol = createSymbol(flags, name.text);
+ symbol.type = getTypeFromBindingElement(e, includePatternInType);
+ symbol.bindingElement = e;
+ members[symbol.name] = symbol;
+ });
+ var result = createAnonymousType(undefined, members, emptyArray, emptyArray, undefined, undefined);
+ if (includePatternInType) {
+ result.pattern = pattern;
+ }
+ return result;
+ }
+ // Return the type implied by an array binding pattern
+ function getTypeFromArrayBindingPattern(pattern, includePatternInType) {
+ var elements = pattern.elements;
+ if (elements.length === 0 || elements[elements.length - 1].dotDotDotToken) {
+ return languageVersion >= 2 /* ES6 */ ? createIterableType(anyType) : anyArrayType;
+ }
+ // If the pattern has at least one element, and no rest element, then it should imply a tuple type.
+ var elementTypes = ts.map(elements, function (e) { return e.kind === 187 /* OmittedExpression */ ? anyType : getTypeFromBindingElement(e, includePatternInType); });
+ if (includePatternInType) {
+ var result = createNewTupleType(elementTypes);
+ result.pattern = pattern;
+ return result;
+ }
+ return createTupleType(elementTypes);
+ }
+ // Return the type implied by a binding pattern. This is the type implied purely by the binding pattern itself
+ // and without regard to its context (i.e. without regard any type annotation or initializer associated with the
+ // declaration in which the binding pattern is contained). For example, the implied type of [x, y] is [any, any]
+ // and the implied type of { x, y: z = 1 } is { x: any; y: number; }. The type implied by a binding pattern is
+ // used as the contextual type of an initializer associated with the binding pattern. Also, for a destructuring
+ // parameter with no type annotation or initializer, the type implied by the binding pattern becomes the type of
+ // the parameter.
+ function getTypeFromBindingPattern(pattern, includePatternInType) {
+ return pattern.kind === 161 /* ObjectBindingPattern */
+ ? getTypeFromObjectBindingPattern(pattern, includePatternInType)
+ : getTypeFromArrayBindingPattern(pattern, includePatternInType);
+ }
+ // Return the type associated with a variable, parameter, or property declaration. In the simple case this is the type
+ // specified in a type annotation or inferred from an initializer. However, in the case of a destructuring declaration it
+ // is a bit more involved. For example:
+ //
+ // var [x, s = ""] = [1, "one"];
+ //
+ // Here, the array literal [1, "one"] is contextually typed by the type [any, string], which is the implied type of the
+ // binding pattern [x, s = ""]. Because the contextual type is a tuple type, the resulting type of [1, "one"] is the
+ // tuple type [number, string]. Thus, the type inferred for 'x' is number and the type inferred for 's' is string.
+ function getWidenedTypeForVariableLikeDeclaration(declaration, reportErrors) {
+ var type = getTypeForVariableLikeDeclaration(declaration);
+ if (type) {
+ if (reportErrors) {
+ reportErrorsFromWidening(declaration, type);
+ }
+ // During a normal type check we'll never get to here with a property assignment (the check of the containing
+ // object literal uses a different path). We exclude widening only so that language services and type verification
+ // tools see the actual type.
+ return declaration.kind !== 245 /* PropertyAssignment */ ? getWidenedType(type) : type;
+ }
+ // Rest parameters default to type any[], other parameters default to type any
+ type = declaration.dotDotDotToken ? anyArrayType : anyType;
+ // Report implicit any errors unless this is a private property within an ambient declaration
+ if (reportErrors && compilerOptions.noImplicitAny) {
+ var root = ts.getRootDeclaration(declaration);
+ if (!isPrivateWithinAmbient(root) && !(root.kind === 138 /* Parameter */ && isPrivateWithinAmbient(root.parent))) {
+ reportImplicitAnyError(declaration, type);
+ }
+ }
+ return type;
+ }
+ function getTypeOfVariableOrParameterOrProperty(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ // Handle prototype property
+ if (symbol.flags & 134217728 /* Prototype */) {
+ return links.type = getTypeOfPrototypeProperty(symbol);
+ }
+ // Handle catch clause variables
+ var declaration = symbol.valueDeclaration;
+ if (declaration.parent.kind === 244 /* CatchClause */) {
+ return links.type = anyType;
+ }
+ // Handle export default expressions
+ if (declaration.kind === 227 /* ExportAssignment */) {
+ return links.type = checkExpression(declaration.expression);
+ }
+ // Handle variable, parameter or property
+ if (!pushTypeResolution(symbol, 0 /* Type */)) {
+ return unknownType;
+ }
+ var type = getWidenedTypeForVariableLikeDeclaration(declaration, /*reportErrors*/ true);
+ if (!popTypeResolution()) {
+ if (symbol.valueDeclaration.type) {
+ // Variable has type annotation that circularly references the variable itself
+ type = unknownType;
+ error(symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_type_annotation, symbolToString(symbol));
+ }
+ else {
+ // Variable has initializer that circularly references the variable itself
+ type = anyType;
+ if (compilerOptions.noImplicitAny) {
+ error(symbol.valueDeclaration, ts.Diagnostics._0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer, symbolToString(symbol));
+ }
+ }
+ }
+ links.type = type;
+ }
+ return links.type;
+ }
+ function getAnnotatedAccessorType(accessor) {
+ if (accessor) {
+ if (accessor.kind === 145 /* GetAccessor */) {
+ return accessor.type && getTypeFromTypeNode(accessor.type);
+ }
+ else {
+ var setterTypeAnnotation = ts.getSetAccessorTypeAnnotationNode(accessor);
+ return setterTypeAnnotation && getTypeFromTypeNode(setterTypeAnnotation);
+ }
+ }
+ return undefined;
+ }
+ function getTypeOfAccessors(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ if (!pushTypeResolution(symbol, 0 /* Type */)) {
+ return unknownType;
+ }
+ var getter = ts.getDeclarationOfKind(symbol, 145 /* GetAccessor */);
+ var setter = ts.getDeclarationOfKind(symbol, 146 /* SetAccessor */);
+ var type;
+ // First try to see if the user specified a return type on the get-accessor.
+ var getterReturnType = getAnnotatedAccessorType(getter);
+ if (getterReturnType) {
+ type = getterReturnType;
+ }
+ else {
+ // If the user didn't specify a return type, try to use the set-accessor's parameter type.
+ var setterParameterType = getAnnotatedAccessorType(setter);
+ if (setterParameterType) {
+ type = setterParameterType;
+ }
+ else {
+ // If there are no specified types, try to infer it from the body of the get accessor if it exists.
+ if (getter && getter.body) {
+ type = getReturnTypeFromBody(getter);
+ }
+ else {
+ if (compilerOptions.noImplicitAny) {
+ error(setter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_type_annotation, symbolToString(symbol));
+ }
+ type = anyType;
+ }
+ }
+ }
+ if (!popTypeResolution()) {
+ type = anyType;
+ if (compilerOptions.noImplicitAny) {
+ var getter_1 = ts.getDeclarationOfKind(symbol, 145 /* GetAccessor */);
+ error(getter_1, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, symbolToString(symbol));
+ }
+ }
+ links.type = type;
+ }
+ return links.type;
+ }
+ function getTypeOfFuncClassEnumModule(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ links.type = createObjectType(65536 /* Anonymous */, symbol);
+ }
+ return links.type;
+ }
+ function getTypeOfEnumMember(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ links.type = getDeclaredTypeOfEnum(getParentOfSymbol(symbol));
+ }
+ return links.type;
+ }
+ function getTypeOfAlias(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ var targetSymbol = resolveAlias(symbol);
+ // It only makes sense to get the type of a value symbol. If the result of resolving
+ // the alias is not a value, then it has no type. To get the type associated with a
+ // type symbol, call getDeclaredTypeOfSymbol.
+ // This check is important because without it, a call to getTypeOfSymbol could end
+ // up recursively calling getTypeOfAlias, causing a stack overflow.
+ links.type = targetSymbol.flags & 107455 /* Value */
+ ? getTypeOfSymbol(targetSymbol)
+ : unknownType;
+ }
+ return links.type;
+ }
+ function getTypeOfInstantiatedSymbol(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.type) {
+ links.type = instantiateType(getTypeOfSymbol(links.target), links.mapper);
+ }
+ return links.type;
+ }
+ function getTypeOfSymbol(symbol) {
+ if (symbol.flags & 16777216 /* Instantiated */) {
+ return getTypeOfInstantiatedSymbol(symbol);
+ }
+ if (symbol.flags & (3 /* Variable */ | 4 /* Property */)) {
+ return getTypeOfVariableOrParameterOrProperty(symbol);
+ }
+ if (symbol.flags & (16 /* Function */ | 8192 /* Method */ | 32 /* Class */ | 384 /* Enum */ | 512 /* ValueModule */)) {
+ return getTypeOfFuncClassEnumModule(symbol);
+ }
+ if (symbol.flags & 8 /* EnumMember */) {
+ return getTypeOfEnumMember(symbol);
+ }
+ if (symbol.flags & 98304 /* Accessor */) {
+ return getTypeOfAccessors(symbol);
+ }
+ if (symbol.flags & 8388608 /* Alias */) {
+ return getTypeOfAlias(symbol);
+ }
+ return unknownType;
+ }
+ function getTargetType(type) {
+ return type.flags & 4096 /* Reference */ ? type.target : type;
+ }
+ function hasBaseType(type, checkBase) {
+ return check(type);
+ function check(type) {
+ var target = getTargetType(type);
+ return target === checkBase || ts.forEach(getBaseTypes(target), check);
+ }
+ }
+ // Appends the type parameters given by a list of declarations to a set of type parameters and returns the resulting set.
+ // The function allocates a new array if the input type parameter set is undefined, but otherwise it modifies the set
+ // in-place and returns the same array.
+ function appendTypeParameters(typeParameters, declarations) {
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ var tp = getDeclaredTypeOfTypeParameter(getSymbolOfNode(declaration));
+ if (!typeParameters) {
+ typeParameters = [tp];
+ }
+ else if (!ts.contains(typeParameters, tp)) {
+ typeParameters.push(tp);
+ }
+ }
+ return typeParameters;
+ }
+ // Appends the outer type parameters of a node to a set of type parameters and returns the resulting set. The function
+ // allocates a new array if the input type parameter set is undefined, but otherwise it modifies the set in-place and
+ // returns the same array.
+ function appendOuterTypeParameters(typeParameters, node) {
+ while (true) {
+ node = node.parent;
+ if (!node) {
+ return typeParameters;
+ }
+ if (node.kind === 214 /* ClassDeclaration */ || node.kind === 186 /* ClassExpression */ ||
+ node.kind === 213 /* FunctionDeclaration */ || node.kind === 173 /* FunctionExpression */ ||
+ node.kind === 143 /* MethodDeclaration */ || node.kind === 174 /* ArrowFunction */) {
+ var declarations = node.typeParameters;
+ if (declarations) {
+ return appendTypeParameters(appendOuterTypeParameters(typeParameters, node), declarations);
+ }
+ }
+ }
+ }
+ // The outer type parameters are those defined by enclosing generic classes, methods, or functions.
+ function getOuterTypeParametersOfClassOrInterface(symbol) {
+ var declaration = symbol.flags & 32 /* Class */ ? symbol.valueDeclaration : ts.getDeclarationOfKind(symbol, 215 /* InterfaceDeclaration */);
+ return appendOuterTypeParameters(undefined, declaration);
+ }
+ // The local type parameters are the combined set of type parameters from all declarations of the class,
+ // interface, or type alias.
+ function getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) {
+ var result;
+ for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+ var node = _a[_i];
+ if (node.kind === 215 /* InterfaceDeclaration */ || node.kind === 214 /* ClassDeclaration */ ||
+ node.kind === 186 /* ClassExpression */ || node.kind === 216 /* TypeAliasDeclaration */) {
+ var declaration = node;
+ if (declaration.typeParameters) {
+ result = appendTypeParameters(result, declaration.typeParameters);
+ }
+ }
+ }
+ return result;
+ }
+ // The full set of type parameters for a generic class or interface type consists of its outer type parameters plus
+ // its locally declared type parameters.
+ function getTypeParametersOfClassOrInterface(symbol) {
+ return ts.concatenate(getOuterTypeParametersOfClassOrInterface(symbol), getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol));
+ }
+ function isConstructorType(type) {
+ return type.flags & 80896 /* ObjectType */ && getSignaturesOfType(type, 1 /* Construct */).length > 0;
+ }
+ function getBaseTypeNodeOfClass(type) {
+ return ts.getClassExtendsHeritageClauseElement(type.symbol.valueDeclaration);
+ }
+ function getConstructorsForTypeArguments(type, typeArgumentNodes) {
+ var typeArgCount = typeArgumentNodes ? typeArgumentNodes.length : 0;
+ return ts.filter(getSignaturesOfType(type, 1 /* Construct */), function (sig) { return (sig.typeParameters ? sig.typeParameters.length : 0) === typeArgCount; });
+ }
+ function getInstantiatedConstructorsForTypeArguments(type, typeArgumentNodes) {
+ var signatures = getConstructorsForTypeArguments(type, typeArgumentNodes);
+ if (typeArgumentNodes) {
+ var typeArguments = ts.map(typeArgumentNodes, getTypeFromTypeNode);
+ signatures = ts.map(signatures, function (sig) { return getSignatureInstantiation(sig, typeArguments); });
+ }
+ return signatures;
+ }
+ // The base constructor of a class can resolve to
+ // undefinedType if the class has no extends clause,
+ // unknownType if an error occurred during resolution of the extends expression,
+ // nullType if the extends expression is the null value, or
+ // an object type with at least one construct signature.
+ function getBaseConstructorTypeOfClass(type) {
+ if (!type.resolvedBaseConstructorType) {
+ var baseTypeNode = getBaseTypeNodeOfClass(type);
+ if (!baseTypeNode) {
+ return type.resolvedBaseConstructorType = undefinedType;
+ }
+ if (!pushTypeResolution(type, 1 /* ResolvedBaseConstructorType */)) {
+ return unknownType;
+ }
+ var baseConstructorType = checkExpression(baseTypeNode.expression);
+ if (baseConstructorType.flags & 80896 /* ObjectType */) {
+ // Resolving the members of a class requires us to resolve the base class of that class.
+ // We force resolution here such that we catch circularities now.
+ resolveStructuredTypeMembers(baseConstructorType);
+ }
+ if (!popTypeResolution()) {
+ error(type.symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_base_expression, symbolToString(type.symbol));
+ return type.resolvedBaseConstructorType = unknownType;
+ }
+ if (baseConstructorType !== unknownType && baseConstructorType !== nullType && !isConstructorType(baseConstructorType)) {
+ error(baseTypeNode.expression, ts.Diagnostics.Type_0_is_not_a_constructor_function_type, typeToString(baseConstructorType));
+ return type.resolvedBaseConstructorType = unknownType;
+ }
+ type.resolvedBaseConstructorType = baseConstructorType;
+ }
+ return type.resolvedBaseConstructorType;
+ }
+ function hasClassBaseType(type) {
+ return !!ts.forEach(getBaseTypes(type), function (t) { return !!(t.symbol.flags & 32 /* Class */); });
+ }
+ function getBaseTypes(type) {
+ var isClass = type.symbol.flags & 32 /* Class */;
+ var isInterface = type.symbol.flags & 64 /* Interface */;
+ if (!type.resolvedBaseTypes) {
+ if (!isClass && !isInterface) {
+ ts.Debug.fail("type must be class or interface");
+ }
+ if (isClass) {
+ resolveBaseTypesOfClass(type);
+ }
+ if (isInterface) {
+ resolveBaseTypesOfInterface(type);
+ }
+ }
+ return type.resolvedBaseTypes;
+ }
+ function resolveBaseTypesOfClass(type) {
+ type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
+ var baseContructorType = getBaseConstructorTypeOfClass(type);
+ if (!(baseContructorType.flags & 80896 /* ObjectType */)) {
+ return;
+ }
+ var baseTypeNode = getBaseTypeNodeOfClass(type);
+ var baseType;
+ if (baseContructorType.symbol && baseContructorType.symbol.flags & 32 /* Class */) {
+ // When base constructor type is a class we know that the constructors all have the same type parameters as the
+ // class and all return the instance type of the class. There is no need for further checks and we can apply the
+ // type arguments in the same manner as a type reference to get the same error reporting experience.
+ baseType = getTypeFromClassOrInterfaceReference(baseTypeNode, baseContructorType.symbol);
+ }
+ else {
+ // The class derives from a "class-like" constructor function, check that we have at least one construct signature
+ // with a matching number of type parameters and use the return type of the first instantiated signature. Elsewhere
+ // we check that all instantiated signatures return the same type.
+ var constructors = getInstantiatedConstructorsForTypeArguments(baseContructorType, baseTypeNode.typeArguments);
+ if (!constructors.length) {
+ error(baseTypeNode.expression, ts.Diagnostics.No_base_constructor_has_the_specified_number_of_type_arguments);
+ return;
+ }
+ baseType = getReturnTypeOfSignature(constructors[0]);
+ }
+ if (baseType === unknownType) {
+ return;
+ }
+ if (!(getTargetType(baseType).flags & (1024 /* Class */ | 2048 /* Interface */))) {
+ error(baseTypeNode.expression, ts.Diagnostics.Base_constructor_return_type_0_is_not_a_class_or_interface_type, typeToString(baseType));
+ return;
+ }
+ if (type === baseType || hasBaseType(baseType, type)) {
+ error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
+ return;
+ }
+ if (type.resolvedBaseTypes === emptyArray) {
+ type.resolvedBaseTypes = [baseType];
+ }
+ else {
+ type.resolvedBaseTypes.push(baseType);
+ }
+ }
+ function resolveBaseTypesOfInterface(type) {
+ type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
+ for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
+ var declaration = _a[_i];
+ if (declaration.kind === 215 /* InterfaceDeclaration */ && ts.getInterfaceBaseTypeNodes(declaration)) {
+ for (var _b = 0, _c = ts.getInterfaceBaseTypeNodes(declaration); _b < _c.length; _b++) {
+ var node = _c[_b];
+ var baseType = getTypeFromTypeNode(node);
+ if (baseType !== unknownType) {
+ if (getTargetType(baseType).flags & (1024 /* Class */ | 2048 /* Interface */)) {
+ if (type !== baseType && !hasBaseType(baseType, type)) {
+ if (type.resolvedBaseTypes === emptyArray) {
+ type.resolvedBaseTypes = [baseType];
+ }
+ else {
+ type.resolvedBaseTypes.push(baseType);
+ }
+ }
+ else {
+ error(declaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */));
+ }
+ }
+ else {
+ error(node, ts.Diagnostics.An_interface_may_only_extend_a_class_or_another_interface);
+ }
+ }
+ }
+ }
+ }
+ }
+ // Returns true if the interface given by the symbol is free of "this" references. Specifically, the result is
+ // true if the interface itself contains no references to "this" in its body, if all base types are interfaces,
+ // and if none of the base interfaces have a "this" type.
+ function isIndependentInterface(symbol) {
+ for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+ var declaration = _a[_i];
+ if (declaration.kind === 215 /* InterfaceDeclaration */) {
+ if (declaration.flags & 524288 /* ContainsThis */) {
+ return false;
+ }
+ var baseTypeNodes = ts.getInterfaceBaseTypeNodes(declaration);
+ if (baseTypeNodes) {
+ for (var _b = 0; _b < baseTypeNodes.length; _b++) {
+ var node = baseTypeNodes[_b];
+ if (ts.isSupportedExpressionWithTypeArguments(node)) {
+ var baseSymbol = resolveEntityName(node.expression, 793056 /* Type */, /*ignoreErrors*/ true);
+ if (!baseSymbol || !(baseSymbol.flags & 64 /* Interface */) || getDeclaredTypeOfClassOrInterface(baseSymbol).thisType) {
+ return false;
+ }
+ }
+ }
+ }
+ }
+ }
+ return true;
+ }
+ function getDeclaredTypeOfClassOrInterface(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.declaredType) {
+ var kind = symbol.flags & 32 /* Class */ ? 1024 /* Class */ : 2048 /* Interface */;
+ var type = links.declaredType = createObjectType(kind, symbol);
+ var outerTypeParameters = getOuterTypeParametersOfClassOrInterface(symbol);
+ var localTypeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+ // A class or interface is generic if it has type parameters or a "this" type. We always give classes a "this" type
+ // because it is not feasible to analyze all members to determine if the "this" type escapes the class (in particular,
+ // property types inferred from initializers and method return types inferred from return statements are very hard
+ // to exhaustively analyze). We give interfaces a "this" type if we can't definitely determine that they are free of
+ // "this" references.
+ if (outerTypeParameters || localTypeParameters || kind === 1024 /* Class */ || !isIndependentInterface(symbol)) {
+ type.flags |= 4096 /* Reference */;
+ type.typeParameters = ts.concatenate(outerTypeParameters, localTypeParameters);
+ type.outerTypeParameters = outerTypeParameters;
+ type.localTypeParameters = localTypeParameters;
+ type.instantiations = {};
+ type.instantiations[getTypeListId(type.typeParameters)] = type;
+ type.target = type;
+ type.typeArguments = type.typeParameters;
+ type.thisType = createType(512 /* TypeParameter */ | 33554432 /* ThisType */);
+ type.thisType.symbol = symbol;
+ type.thisType.constraint = getTypeWithThisArgument(type);
+ }
+ }
+ return links.declaredType;
+ }
+ function getDeclaredTypeOfTypeAlias(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.declaredType) {
+ // Note that we use the links object as the target here because the symbol object is used as the unique
+ // identity for resolution of the 'type' property in SymbolLinks.
+ if (!pushTypeResolution(symbol, 2 /* DeclaredType */)) {
+ return unknownType;
+ }
+ var declaration = ts.getDeclarationOfKind(symbol, 216 /* TypeAliasDeclaration */);
+ var type = getTypeFromTypeNode(declaration.type);
+ if (popTypeResolution()) {
+ links.typeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
+ if (links.typeParameters) {
+ // Initialize the instantiation cache for generic type aliases. The declared type corresponds to
+ // an instantiation of the type alias with the type parameters supplied as type arguments.
+ links.instantiations = {};
+ links.instantiations[getTypeListId(links.typeParameters)] = type;
+ }
+ }
+ else {
+ type = unknownType;
+ error(declaration.name, ts.Diagnostics.Type_alias_0_circularly_references_itself, symbolToString(symbol));
+ }
+ links.declaredType = type;
+ }
+ return links.declaredType;
+ }
+ function getDeclaredTypeOfEnum(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.declaredType) {
+ var type = createType(128 /* Enum */);
+ type.symbol = symbol;
+ links.declaredType = type;
+ }
+ return links.declaredType;
+ }
+ function getDeclaredTypeOfTypeParameter(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.declaredType) {
+ var type = createType(512 /* TypeParameter */);
+ type.symbol = symbol;
+ if (!ts.getDeclarationOfKind(symbol, 137 /* TypeParameter */).constraint) {
+ type.constraint = noConstraintType;
+ }
+ links.declaredType = type;
+ }
+ return links.declaredType;
+ }
+ function getDeclaredTypeOfAlias(symbol) {
+ var links = getSymbolLinks(symbol);
+ if (!links.declaredType) {
+ links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol));
+ }
+ return links.declaredType;
+ }
+ function getDeclaredTypeOfSymbol(symbol) {
+ ts.Debug.assert((symbol.flags & 16777216 /* Instantiated */) === 0);
+ if (symbol.flags & (32 /* Class */ | 64 /* Interface */)) {
+ return getDeclaredTypeOfClassOrInterface(symbol);
+ }
+ if (symbol.flags & 524288 /* TypeAlias */) {
+ return getDeclaredTypeOfTypeAlias(symbol);
+ }
+ if (symbol.flags & 384 /* Enum */) {
+ return getDeclaredTypeOfEnum(symbol);
+ }
+ if (symbol.flags & 262144 /* TypeParameter */) {
+ return getDeclaredTypeOfTypeParameter(symbol);
+ }
+ if (symbol.flags & 8388608 /* Alias */) {
+ return getDeclaredTypeOfAlias(symbol);
+ }
+ return unknownType;
+ }
+ // A type reference is considered independent if each type argument is considered independent.
+ function isIndependentTypeReference(node) {
+ if (node.typeArguments) {
+ for (var _i = 0, _a = node.typeArguments; _i < _a.length; _i++) {
+ var typeNode = _a[_i];
+ if (!isIndependentType(typeNode)) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+ // A type is considered independent if it the any, string, number, boolean, symbol, or void keyword, a string
+ // literal type, an array with an element type that is considered independent, or a type reference that is
+ // considered independent.
+ function isIndependentType(node) {
+ switch (node.kind) {
+ case 117 /* AnyKeyword */:
+ case 130 /* StringKeyword */:
+ case 128 /* NumberKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ case 103 /* VoidKeyword */:
+ case 9 /* StringLiteral */:
+ return true;
+ case 156 /* ArrayType */:
+ return isIndependentType(node.elementType);
+ case 151 /* TypeReference */:
+ return isIndependentTypeReference(node);
+ }
+ return false;
+ }
+ // A variable-like declaration is considered independent (free of this references) if it has a type annotation
+ // that specifies an independent type, or if it has no type annotation and no initializer (and thus of type any).
+ function isIndependentVariableLikeDeclaration(node) {
+ return node.type && isIndependentType(node.type) || !node.type && !node.initializer;
+ }
+ // A function-like declaration is considered independent (free of this references) if it has a return type
+ // annotation that is considered independent and if each parameter is considered independent.
+ function isIndependentFunctionLikeDeclaration(node) {
+ if (node.kind !== 144 /* Constructor */ && (!node.type || !isIndependentType(node.type))) {
+ return false;
+ }
+ for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+ var parameter = _a[_i];
+ if (!isIndependentVariableLikeDeclaration(parameter)) {
+ return false;
+ }
+ }
+ return true;
+ }
+ // Returns true if the class or interface member given by the symbol is free of "this" references. The
+ // function may return false for symbols that are actually free of "this" references because it is not
+ // feasible to perform a complete analysis in all cases. In particular, property members with types
+ // inferred from their initializers and function members with inferred return types are convervatively
+ // assumed not to be free of "this" references.
+ function isIndependentMember(symbol) {
+ if (symbol.declarations && symbol.declarations.length === 1) {
+ var declaration = symbol.declarations[0];
+ if (declaration) {
+ switch (declaration.kind) {
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return isIndependentVariableLikeDeclaration(declaration);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ return isIndependentFunctionLikeDeclaration(declaration);
+ }
+ }
+ }
+ return false;
+ }
+ function createSymbolTable(symbols) {
+ var result = {};
+ for (var _i = 0; _i < symbols.length; _i++) {
+ var symbol = symbols[_i];
+ result[symbol.name] = symbol;
+ }
+ return result;
+ }
+ // The mappingThisOnly flag indicates that the only type parameter being mapped is "this". When the flag is true,
+ // we check symbols to see if we can quickly conclude they are free of "this" references, thus needing no instantiation.
+ function createInstantiatedSymbolTable(symbols, mapper, mappingThisOnly) {
+ var result = {};
+ for (var _i = 0; _i < symbols.length; _i++) {
+ var symbol = symbols[_i];
+ result[symbol.name] = mappingThisOnly && isIndependentMember(symbol) ? symbol : instantiateSymbol(symbol, mapper);
+ }
+ return result;
+ }
+ function addInheritedMembers(symbols, baseSymbols) {
+ for (var _i = 0; _i < baseSymbols.length; _i++) {
+ var s = baseSymbols[_i];
+ if (!ts.hasProperty(symbols, s.name)) {
+ symbols[s.name] = s;
+ }
+ }
+ }
+ function addInheritedSignatures(signatures, baseSignatures) {
+ if (baseSignatures) {
+ for (var _i = 0; _i < baseSignatures.length; _i++) {
+ var signature = baseSignatures[_i];
+ signatures.push(signature);
+ }
+ }
+ }
+ function resolveDeclaredMembers(type) {
+ if (!type.declaredProperties) {
+ var symbol = type.symbol;
+ type.declaredProperties = getNamedMembers(symbol.members);
+ type.declaredCallSignatures = getSignaturesOfSymbol(symbol.members["__call"]);
+ type.declaredConstructSignatures = getSignaturesOfSymbol(symbol.members["__new"]);
+ type.declaredStringIndexType = getIndexTypeOfSymbol(symbol, 0 /* String */);
+ type.declaredNumberIndexType = getIndexTypeOfSymbol(symbol, 1 /* Number */);
+ }
+ return type;
+ }
+ function getTypeWithThisArgument(type, thisArgument) {
+ if (type.flags & 4096 /* Reference */) {
+ return createTypeReference(type.target, ts.concatenate(type.typeArguments, [thisArgument || type.target.thisType]));
+ }
+ return type;
+ }
+ function resolveObjectTypeMembers(type, source, typeParameters, typeArguments) {
+ var mapper = identityMapper;
+ var members = source.symbol.members;
+ var callSignatures = source.declaredCallSignatures;
+ var constructSignatures = source.declaredConstructSignatures;
+ var stringIndexType = source.declaredStringIndexType;
+ var numberIndexType = source.declaredNumberIndexType;
+ if (!ts.rangeEquals(typeParameters, typeArguments, 0, typeParameters.length)) {
+ mapper = createTypeMapper(typeParameters, typeArguments);
+ members = createInstantiatedSymbolTable(source.declaredProperties, mapper, /*mappingThisOnly*/ typeParameters.length === 1);
+ callSignatures = instantiateList(source.declaredCallSignatures, mapper, instantiateSignature);
+ constructSignatures = instantiateList(source.declaredConstructSignatures, mapper, instantiateSignature);
+ stringIndexType = instantiateType(source.declaredStringIndexType, mapper);
+ numberIndexType = instantiateType(source.declaredNumberIndexType, mapper);
+ }
+ var baseTypes = getBaseTypes(source);
+ if (baseTypes.length) {
+ if (members === source.symbol.members) {
+ members = createSymbolTable(source.declaredProperties);
+ }
+ var thisArgument = ts.lastOrUndefined(typeArguments);
+ for (var _i = 0; _i < baseTypes.length; _i++) {
+ var baseType = baseTypes[_i];
+ var instantiatedBaseType = thisArgument ? getTypeWithThisArgument(instantiateType(baseType, mapper), thisArgument) : baseType;
+ addInheritedMembers(members, getPropertiesOfObjectType(instantiatedBaseType));
+ callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(instantiatedBaseType, 0 /* Call */));
+ constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(instantiatedBaseType, 1 /* Construct */));
+ stringIndexType = stringIndexType || getIndexTypeOfType(instantiatedBaseType, 0 /* String */);
+ numberIndexType = numberIndexType || getIndexTypeOfType(instantiatedBaseType, 1 /* Number */);
+ }
+ }
+ setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexType, numberIndexType);
+ }
+ function resolveClassOrInterfaceMembers(type) {
+ resolveObjectTypeMembers(type, resolveDeclaredMembers(type), emptyArray, emptyArray);
+ }
+ function resolveTypeReferenceMembers(type) {
+ var source = resolveDeclaredMembers(type.target);
+ var typeParameters = ts.concatenate(source.typeParameters, [source.thisType]);
+ var typeArguments = type.typeArguments && type.typeArguments.length === typeParameters.length ?
+ type.typeArguments : ts.concatenate(type.typeArguments, [type]);
+ resolveObjectTypeMembers(type, source, typeParameters, typeArguments);
+ }
+ function createSignature(declaration, typeParameters, parameters, resolvedReturnType, typePredicate, minArgumentCount, hasRestParameter, hasStringLiterals) {
+ var sig = new Signature(checker);
+ sig.declaration = declaration;
+ sig.typeParameters = typeParameters;
+ sig.parameters = parameters;
+ sig.resolvedReturnType = resolvedReturnType;
+ sig.typePredicate = typePredicate;
+ sig.minArgumentCount = minArgumentCount;
+ sig.hasRestParameter = hasRestParameter;
+ sig.hasStringLiterals = hasStringLiterals;
+ return sig;
+ }
+ function cloneSignature(sig) {
+ return createSignature(sig.declaration, sig.typeParameters, sig.parameters, sig.resolvedReturnType, sig.typePredicate, sig.minArgumentCount, sig.hasRestParameter, sig.hasStringLiterals);
+ }
+ function getDefaultConstructSignatures(classType) {
+ if (!hasClassBaseType(classType)) {
+ return [createSignature(undefined, classType.localTypeParameters, emptyArray, classType, undefined, 0, false, false)];
+ }
+ var baseConstructorType = getBaseConstructorTypeOfClass(classType);
+ var baseSignatures = getSignaturesOfType(baseConstructorType, 1 /* Construct */);
+ var baseTypeNode = getBaseTypeNodeOfClass(classType);
+ var typeArguments = ts.map(baseTypeNode.typeArguments, getTypeFromTypeNode);
+ var typeArgCount = typeArguments ? typeArguments.length : 0;
+ var result = [];
+ for (var _i = 0; _i < baseSignatures.length; _i++) {
+ var baseSig = baseSignatures[_i];
+ var typeParamCount = baseSig.typeParameters ? baseSig.typeParameters.length : 0;
+ if (typeParamCount === typeArgCount) {
+ var sig = typeParamCount ? getSignatureInstantiation(baseSig, typeArguments) : cloneSignature(baseSig);
+ sig.typeParameters = classType.localTypeParameters;
+ sig.resolvedReturnType = classType;
+ result.push(sig);
+ }
+ }
+ return result;
+ }
+ function createTupleTypeMemberSymbols(memberTypes) {
+ var members = {};
+ for (var i = 0; i < memberTypes.length; i++) {
+ var symbol = createSymbol(4 /* Property */ | 67108864 /* Transient */, "" + i);
+ symbol.type = memberTypes[i];
+ members[i] = symbol;
+ }
+ return members;
+ }
+ function resolveTupleTypeMembers(type) {
+ var arrayElementType = getUnionType(type.elementTypes, /*noSubtypeReduction*/ true);
+ // Make the tuple type itself the 'this' type by including an extra type argument
+ var arrayType = resolveStructuredTypeMembers(createTypeFromGenericGlobalType(globalArrayType, [arrayElementType, type]));
+ var members = createTupleTypeMemberSymbols(type.elementTypes);
+ addInheritedMembers(members, arrayType.properties);
+ setObjectTypeMembers(type, members, arrayType.callSignatures, arrayType.constructSignatures, arrayType.stringIndexType, arrayType.numberIndexType);
+ }
+ function findMatchingSignature(signatureList, signature, partialMatch, ignoreReturnTypes) {
+ for (var _i = 0; _i < signatureList.length; _i++) {
+ var s = signatureList[_i];
+ if (compareSignatures(s, signature, partialMatch, ignoreReturnTypes, compareTypes)) {
+ return s;
+ }
+ }
+ }
+ function findMatchingSignatures(signatureLists, signature, listIndex) {
+ if (signature.typeParameters) {
+ // We require an exact match for generic signatures, so we only return signatures from the first
+ // signature list and only if they have exact matches in the other signature lists.
+ if (listIndex > 0) {
+ return undefined;
+ }
+ for (var i = 1; i < signatureLists.length; i++) {
+ if (!findMatchingSignature(signatureLists[i], signature, /*partialMatch*/ false, /*ignoreReturnTypes*/ false)) {
+ return undefined;
+ }
+ }
+ return [signature];
+ }
+ var result = undefined;
+ for (var i = 0; i < signatureLists.length; i++) {
+ // Allow matching non-generic signatures to have excess parameters and different return types
+ var match = i === listIndex ? signature : findMatchingSignature(signatureLists[i], signature, /*partialMatch*/ true, /*ignoreReturnTypes*/ true);
+ if (!match) {
+ return undefined;
+ }
+ if (!ts.contains(result, match)) {
+ (result || (result = [])).push(match);
+ }
+ }
+ return result;
+ }
+ // The signatures of a union type are those signatures that are present in each of the constituent types.
+ // Generic signatures must match exactly, but non-generic signatures are allowed to have extra optional
+ // parameters and may differ in return types. When signatures differ in return types, the resulting return
+ // type is the union of the constituent return types.
+ function getUnionSignatures(types, kind) {
+ var signatureLists = ts.map(types, function (t) { return getSignaturesOfType(t, kind); });
+ var result = undefined;
+ for (var i = 0; i < signatureLists.length; i++) {
+ for (var _i = 0, _a = signatureLists[i]; _i < _a.length; _i++) {
+ var signature = _a[_i];
+ // Only process signatures with parameter lists that aren't already in the result list
+ if (!result || !findMatchingSignature(result, signature, /*partialMatch*/ false, /*ignoreReturnTypes*/ true)) {
+ var unionSignatures = findMatchingSignatures(signatureLists, signature, i);
+ if (unionSignatures) {
+ var s = signature;
+ // Union the result types when more than one signature matches
+ if (unionSignatures.length > 1) {
+ s = cloneSignature(signature);
+ // Clear resolved return type we possibly got from cloneSignature
+ s.resolvedReturnType = undefined;
+ s.unionSignatures = unionSignatures;
+ }
+ (result || (result = [])).push(s);
+ }
+ }
+ }
+ }
+ return result || emptyArray;
+ }
+ function getUnionIndexType(types, kind) {
+ var indexTypes = [];
+ for (var _i = 0; _i < types.length; _i++) {
+ var type = types[_i];
+ var indexType = getIndexTypeOfType(type, kind);
+ if (!indexType) {
+ return undefined;
+ }
+ indexTypes.push(indexType);
+ }
+ return getUnionType(indexTypes);
+ }
+ function resolveUnionTypeMembers(type) {
+ // The members and properties collections are empty for union types. To get all properties of a union
+ // type use getPropertiesOfType (only the language service uses this).
+ var callSignatures = getUnionSignatures(type.types, 0 /* Call */);
+ var constructSignatures = getUnionSignatures(type.types, 1 /* Construct */);
+ var stringIndexType = getUnionIndexType(type.types, 0 /* String */);
+ var numberIndexType = getUnionIndexType(type.types, 1 /* Number */);
+ setObjectTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexType, numberIndexType);
+ }
+ function intersectTypes(type1, type2) {
+ return !type1 ? type2 : !type2 ? type1 : getIntersectionType([type1, type2]);
+ }
+ function resolveIntersectionTypeMembers(type) {
+ // The members and properties collections are empty for intersection types. To get all properties of an
+ // intersection type use getPropertiesOfType (only the language service uses this).
+ var callSignatures = emptyArray;
+ var constructSignatures = emptyArray;
+ var stringIndexType = undefined;
+ var numberIndexType = undefined;
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var t = _a[_i];
+ callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(t, 0 /* Call */));
+ constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(t, 1 /* Construct */));
+ stringIndexType = intersectTypes(stringIndexType, getIndexTypeOfType(t, 0 /* String */));
+ numberIndexType = intersectTypes(numberIndexType, getIndexTypeOfType(t, 1 /* Number */));
+ }
+ setObjectTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexType, numberIndexType);
+ }
+ function resolveAnonymousTypeMembers(type) {
+ var symbol = type.symbol;
+ var members;
+ var callSignatures;
+ var constructSignatures;
+ var stringIndexType;
+ var numberIndexType;
+ if (type.target) {
+ members = createInstantiatedSymbolTable(getPropertiesOfObjectType(type.target), type.mapper, /*mappingThisOnly*/ false);
+ callSignatures = instantiateList(getSignaturesOfType(type.target, 0 /* Call */), type.mapper, instantiateSignature);
+ constructSignatures = instantiateList(getSignaturesOfType(type.target, 1 /* Construct */), type.mapper, instantiateSignature);
+ stringIndexType = instantiateType(getIndexTypeOfType(type.target, 0 /* String */), type.mapper);
+ numberIndexType = instantiateType(getIndexTypeOfType(type.target, 1 /* Number */), type.mapper);
+ }
+ else if (symbol.flags & 2048 /* TypeLiteral */) {
+ members = symbol.members;
+ callSignatures = getSignaturesOfSymbol(members["__call"]);
+ constructSignatures = getSignaturesOfSymbol(members["__new"]);
+ stringIndexType = getIndexTypeOfSymbol(symbol, 0 /* String */);
+ numberIndexType = getIndexTypeOfSymbol(symbol, 1 /* Number */);
+ }
+ else {
+ // Combinations of function, class, enum and module
+ members = emptySymbols;
+ callSignatures = emptyArray;
+ constructSignatures = emptyArray;
+ if (symbol.flags & 1952 /* HasExports */) {
+ members = getExportsOfSymbol(symbol);
+ }
+ if (symbol.flags & (16 /* Function */ | 8192 /* Method */)) {
+ callSignatures = getSignaturesOfSymbol(symbol);
+ }
+ if (symbol.flags & 32 /* Class */) {
+ var classType = getDeclaredTypeOfClassOrInterface(symbol);
+ constructSignatures = getSignaturesOfSymbol(symbol.members["__constructor"]);
+ if (!constructSignatures.length) {
+ constructSignatures = getDefaultConstructSignatures(classType);
+ }
+ var baseConstructorType = getBaseConstructorTypeOfClass(classType);
+ if (baseConstructorType.flags & 80896 /* ObjectType */) {
+ members = createSymbolTable(getNamedMembers(members));
+ addInheritedMembers(members, getPropertiesOfObjectType(baseConstructorType));
+ }
+ }
+ stringIndexType = undefined;
+ numberIndexType = (symbol.flags & 384 /* Enum */) ? stringType : undefined;
+ }
+ setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexType, numberIndexType);
+ }
+ function resolveStructuredTypeMembers(type) {
+ if (!type.members) {
+ if (type.flags & 4096 /* Reference */) {
+ resolveTypeReferenceMembers(type);
+ }
+ else if (type.flags & (1024 /* Class */ | 2048 /* Interface */)) {
+ resolveClassOrInterfaceMembers(type);
+ }
+ else if (type.flags & 65536 /* Anonymous */) {
+ resolveAnonymousTypeMembers(type);
+ }
+ else if (type.flags & 8192 /* Tuple */) {
+ resolveTupleTypeMembers(type);
+ }
+ else if (type.flags & 16384 /* Union */) {
+ resolveUnionTypeMembers(type);
+ }
+ else if (type.flags & 32768 /* Intersection */) {
+ resolveIntersectionTypeMembers(type);
+ }
+ }
+ return type;
+ }
+ // Return properties of an object type or an empty array for other types
+ function getPropertiesOfObjectType(type) {
+ if (type.flags & 80896 /* ObjectType */) {
+ return resolveStructuredTypeMembers(type).properties;
+ }
+ return emptyArray;
+ }
+ // If the given type is an object type and that type has a property by the given name,
+ // return the symbol for that property.Otherwise return undefined.
+ function getPropertyOfObjectType(type, name) {
+ if (type.flags & 80896 /* ObjectType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (ts.hasProperty(resolved.members, name)) {
+ var symbol = resolved.members[name];
+ if (symbolIsValue(symbol)) {
+ return symbol;
+ }
+ }
+ }
+ }
+ function getPropertiesOfUnionOrIntersectionType(type) {
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var current = _a[_i];
+ for (var _b = 0, _c = getPropertiesOfType(current); _b < _c.length; _b++) {
+ var prop = _c[_b];
+ getPropertyOfUnionOrIntersectionType(type, prop.name);
+ }
+ // The properties of a union type are those that are present in all constituent types, so
+ // we only need to check the properties of the first type
+ if (type.flags & 16384 /* Union */) {
+ break;
+ }
+ }
+ return type.resolvedProperties ? symbolsToArray(type.resolvedProperties) : emptyArray;
+ }
+ function getPropertiesOfType(type) {
+ type = getApparentType(type);
+ return type.flags & 49152 /* UnionOrIntersection */ ? getPropertiesOfUnionOrIntersectionType(type) : getPropertiesOfObjectType(type);
+ }
+ /**
+ * For a type parameter, return the base constraint of the type parameter. For the string, number,
+ * boolean, and symbol primitive types, return the corresponding object types. Otherwise return the
+ * type itself. Note that the apparent type of a union type is the union type itself.
+ */
+ function getApparentType(type) {
+ if (type.flags & 512 /* TypeParameter */) {
+ do {
+ type = getConstraintOfTypeParameter(type);
+ } while (type && type.flags & 512 /* TypeParameter */);
+ if (!type) {
+ type = emptyObjectType;
+ }
+ }
+ if (type.flags & 258 /* StringLike */) {
+ type = globalStringType;
+ }
+ else if (type.flags & 132 /* NumberLike */) {
+ type = globalNumberType;
+ }
+ else if (type.flags & 8 /* Boolean */) {
+ type = globalBooleanType;
+ }
+ else if (type.flags & 16777216 /* ESSymbol */) {
+ type = globalESSymbolType;
+ }
+ return type;
+ }
+ function createUnionOrIntersectionProperty(containingType, name) {
+ var types = containingType.types;
+ var props;
+ for (var _i = 0; _i < types.length; _i++) {
+ var current = types[_i];
+ var type = getApparentType(current);
+ if (type !== unknownType) {
+ var prop = getPropertyOfType(type, name);
+ if (prop && !(getDeclarationFlagsFromSymbol(prop) & (32 /* Private */ | 64 /* Protected */))) {
+ if (!props) {
+ props = [prop];
+ }
+ else if (!ts.contains(props, prop)) {
+ props.push(prop);
+ }
+ }
+ else if (containingType.flags & 16384 /* Union */) {
+ // A union type requires the property to be present in all constituent types
+ return undefined;
+ }
+ }
+ }
+ if (!props) {
+ return undefined;
+ }
+ if (props.length === 1) {
+ return props[0];
+ }
+ var propTypes = [];
+ var declarations = [];
+ for (var _a = 0; _a < props.length; _a++) {
+ var prop = props[_a];
+ if (prop.declarations) {
+ ts.addRange(declarations, prop.declarations);
+ }
+ propTypes.push(getTypeOfSymbol(prop));
+ }
+ var result = createSymbol(4 /* Property */ | 67108864 /* Transient */ | 268435456 /* SyntheticProperty */, name);
+ result.containingType = containingType;
+ result.declarations = declarations;
+ result.type = containingType.flags & 16384 /* Union */ ? getUnionType(propTypes) : getIntersectionType(propTypes);
+ return result;
+ }
+ function getPropertyOfUnionOrIntersectionType(type, name) {
+ var properties = type.resolvedProperties || (type.resolvedProperties = {});
+ if (ts.hasProperty(properties, name)) {
+ return properties[name];
+ }
+ var property = createUnionOrIntersectionProperty(type, name);
+ if (property) {
+ properties[name] = property;
+ }
+ return property;
+ }
+ // Return the symbol for the property with the given name in the given type. Creates synthetic union properties when
+ // necessary, maps primitive types and type parameters are to their apparent types, and augments with properties from
+ // Object and Function as appropriate.
+ function getPropertyOfType(type, name) {
+ type = getApparentType(type);
+ if (type.flags & 80896 /* ObjectType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (ts.hasProperty(resolved.members, name)) {
+ var symbol = resolved.members[name];
+ if (symbolIsValue(symbol)) {
+ return symbol;
+ }
+ }
+ if (resolved === anyFunctionType || resolved.callSignatures.length || resolved.constructSignatures.length) {
+ var symbol = getPropertyOfObjectType(globalFunctionType, name);
+ if (symbol) {
+ return symbol;
+ }
+ }
+ return getPropertyOfObjectType(globalObjectType, name);
+ }
+ if (type.flags & 49152 /* UnionOrIntersection */) {
+ return getPropertyOfUnionOrIntersectionType(type, name);
+ }
+ return undefined;
+ }
+ function getSignaturesOfStructuredType(type, kind) {
+ if (type.flags & 130048 /* StructuredType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ return kind === 0 /* Call */ ? resolved.callSignatures : resolved.constructSignatures;
+ }
+ return emptyArray;
+ }
+ /**
+ * Return the signatures of the given kind in the given type. Creates synthetic union signatures when necessary and
+ * maps primitive types and type parameters are to their apparent types.
+ */
+ function getSignaturesOfType(type, kind) {
+ return getSignaturesOfStructuredType(getApparentType(type), kind);
+ }
+ function typeHasConstructSignatures(type) {
+ var apparentType = getApparentType(type);
+ if (apparentType.flags & (80896 /* ObjectType */ | 16384 /* Union */)) {
+ var resolved = resolveStructuredTypeMembers(type);
+ return resolved.constructSignatures.length > 0;
+ }
+ return false;
+ }
+ function typeHasCallOrConstructSignatures(type) {
+ var apparentType = getApparentType(type);
+ if (apparentType.flags & 130048 /* StructuredType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ return resolved.callSignatures.length > 0 || resolved.constructSignatures.length > 0;
+ }
+ return false;
+ }
+ function getIndexTypeOfStructuredType(type, kind) {
+ if (type.flags & 130048 /* StructuredType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ return kind === 0 /* String */ ? resolved.stringIndexType : resolved.numberIndexType;
+ }
+ }
+ // Return the index type of the given kind in the given type. Creates synthetic union index types when necessary and
+ // maps primitive types and type parameters are to their apparent types.
+ function getIndexTypeOfType(type, kind) {
+ return getIndexTypeOfStructuredType(getApparentType(type), kind);
+ }
+ // Return list of type parameters with duplicates removed (duplicate identifier errors are generated in the actual
+ // type checking functions).
+ function getTypeParametersFromDeclaration(typeParameterDeclarations) {
+ var result = [];
+ ts.forEach(typeParameterDeclarations, function (node) {
+ var tp = getDeclaredTypeOfTypeParameter(node.symbol);
+ if (!ts.contains(result, tp)) {
+ result.push(tp);
+ }
+ });
+ return result;
+ }
+ function symbolsToArray(symbols) {
+ var result = [];
+ for (var id in symbols) {
+ if (!isReservedMemberName(id)) {
+ result.push(symbols[id]);
+ }
+ }
+ return result;
+ }
+ function isOptionalParameter(node) {
+ if (ts.hasQuestionToken(node)) {
+ return true;
+ }
+ if (node.initializer) {
+ var signatureDeclaration = node.parent;
+ var signature = getSignatureFromDeclaration(signatureDeclaration);
+ var parameterIndex = signatureDeclaration.parameters.indexOf(node);
+ ts.Debug.assert(parameterIndex >= 0);
+ return parameterIndex >= signature.minArgumentCount;
+ }
+ return false;
+ }
+ function getSignatureFromDeclaration(declaration) {
+ var links = getNodeLinks(declaration);
+ if (!links.resolvedSignature) {
+ var classType = declaration.kind === 144 /* Constructor */ ?
+ getDeclaredTypeOfClassOrInterface(getMergedSymbol(declaration.parent.symbol))
+ : undefined;
+ var typeParameters = classType ? classType.localTypeParameters :
+ declaration.typeParameters ? getTypeParametersFromDeclaration(declaration.typeParameters) : undefined;
+ var parameters = [];
+ var hasStringLiterals = false;
+ var minArgumentCount = -1;
+ for (var i = 0, n = declaration.parameters.length; i < n; i++) {
+ var param = declaration.parameters[i];
+ parameters.push(param.symbol);
+ if (param.type && param.type.kind === 9 /* StringLiteral */) {
+ hasStringLiterals = true;
+ }
+ if (param.initializer || param.questionToken || param.dotDotDotToken) {
+ if (minArgumentCount < 0) {
+ minArgumentCount = i;
+ }
+ }
+ else {
+ // If we see any required parameters, it means the prior ones were not in fact optional.
+ minArgumentCount = -1;
+ }
+ }
+ if (minArgumentCount < 0) {
+ minArgumentCount = declaration.parameters.length;
+ }
+ var returnType;
+ var typePredicate;
+ if (classType) {
+ returnType = classType;
+ }
+ else if (declaration.type) {
+ returnType = getTypeFromTypeNode(declaration.type);
+ if (declaration.type.kind === 150 /* TypePredicate */) {
+ var typePredicateNode = declaration.type;
+ typePredicate = {
+ parameterName: typePredicateNode.parameterName ? typePredicateNode.parameterName.text : undefined,
+ parameterIndex: typePredicateNode.parameterName ? getTypePredicateParameterIndex(declaration.parameters, typePredicateNode.parameterName) : undefined,
+ type: getTypeFromTypeNode(typePredicateNode.type)
+ };
+ }
+ }
+ else {
+ // TypeScript 1.0 spec (April 2014):
+ // If only one accessor includes a type annotation, the other behaves as if it had the same type annotation.
+ if (declaration.kind === 145 /* GetAccessor */ && !ts.hasDynamicName(declaration)) {
+ var setter = ts.getDeclarationOfKind(declaration.symbol, 146 /* SetAccessor */);
+ returnType = getAnnotatedAccessorType(setter);
+ }
+ if (!returnType && ts.nodeIsMissing(declaration.body)) {
+ returnType = anyType;
+ }
+ }
+ links.resolvedSignature = createSignature(declaration, typeParameters, parameters, returnType, typePredicate, minArgumentCount, ts.hasRestParameter(declaration), hasStringLiterals);
+ }
+ return links.resolvedSignature;
+ }
+ function getSignaturesOfSymbol(symbol) {
+ if (!symbol)
+ return emptyArray;
+ var result = [];
+ for (var i = 0, len = symbol.declarations.length; i < len; i++) {
+ var node = symbol.declarations[i];
+ switch (node.kind) {
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ // Don't include signature if node is the implementation of an overloaded function. A node is considered
+ // an implementation node if it has a body and the previous node is of the same kind and immediately
+ // precedes the implementation node (i.e. has the same parent and ends where the implementation starts).
+ if (i > 0 && node.body) {
+ var previous = symbol.declarations[i - 1];
+ if (node.parent === previous.parent && node.kind === previous.kind && node.pos === previous.end) {
+ break;
+ }
+ }
+ result.push(getSignatureFromDeclaration(node));
+ }
+ }
+ return result;
+ }
+ function getReturnTypeOfSignature(signature) {
+ if (!signature.resolvedReturnType) {
+ if (!pushTypeResolution(signature, 3 /* ResolvedReturnType */)) {
+ return unknownType;
+ }
+ var type;
+ if (signature.target) {
+ type = instantiateType(getReturnTypeOfSignature(signature.target), signature.mapper);
+ }
+ else if (signature.unionSignatures) {
+ type = getUnionType(ts.map(signature.unionSignatures, getReturnTypeOfSignature));
+ }
+ else {
+ type = getReturnTypeFromBody(signature.declaration);
+ }
+ if (!popTypeResolution()) {
+ type = anyType;
+ if (compilerOptions.noImplicitAny) {
+ var declaration = signature.declaration;
+ if (declaration.name) {
+ error(declaration.name, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, ts.declarationNameToString(declaration.name));
+ }
+ else {
+ error(declaration, ts.Diagnostics.Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions);
+ }
+ }
+ }
+ signature.resolvedReturnType = type;
+ }
+ return signature.resolvedReturnType;
+ }
+ function getRestTypeOfSignature(signature) {
+ if (signature.hasRestParameter) {
+ var type = getTypeOfSymbol(ts.lastOrUndefined(signature.parameters));
+ if (type.flags & 4096 /* Reference */ && type.target === globalArrayType) {
+ return type.typeArguments[0];
+ }
+ }
+ return anyType;
+ }
+ function getSignatureInstantiation(signature, typeArguments) {
+ return instantiateSignature(signature, createTypeMapper(signature.typeParameters, typeArguments), true);
+ }
+ function getErasedSignature(signature) {
+ if (!signature.typeParameters)
+ return signature;
+ if (!signature.erasedSignatureCache) {
+ if (signature.target) {
+ signature.erasedSignatureCache = instantiateSignature(getErasedSignature(signature.target), signature.mapper);
+ }
+ else {
+ signature.erasedSignatureCache = instantiateSignature(signature, createTypeEraser(signature.typeParameters), true);
+ }
+ }
+ return signature.erasedSignatureCache;
+ }
+ function getOrCreateTypeFromSignature(signature) {
+ // There are two ways to declare a construct signature, one is by declaring a class constructor
+ // using the constructor keyword, and the other is declaring a bare construct signature in an
+ // object type literal or interface (using the new keyword). Each way of declaring a constructor
+ // will result in a different declaration kind.
+ if (!signature.isolatedSignatureType) {
+ var isConstructor = signature.declaration.kind === 144 /* Constructor */ || signature.declaration.kind === 148 /* ConstructSignature */;
+ var type = createObjectType(65536 /* Anonymous */ | 262144 /* FromSignature */);
+ type.members = emptySymbols;
+ type.properties = emptyArray;
+ type.callSignatures = !isConstructor ? [signature] : emptyArray;
+ type.constructSignatures = isConstructor ? [signature] : emptyArray;
+ signature.isolatedSignatureType = type;
+ }
+ return signature.isolatedSignatureType;
+ }
+ function getIndexSymbol(symbol) {
+ return symbol.members["__index"];
+ }
+ function getIndexDeclarationOfSymbol(symbol, kind) {
+ var syntaxKind = kind === 1 /* Number */ ? 128 /* NumberKeyword */ : 130 /* StringKeyword */;
+ var indexSymbol = getIndexSymbol(symbol);
+ if (indexSymbol) {
+ for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
+ var decl = _a[_i];
+ var node = decl;
+ if (node.parameters.length === 1) {
+ var parameter = node.parameters[0];
+ if (parameter && parameter.type && parameter.type.kind === syntaxKind) {
+ return node;
+ }
+ }
+ }
+ }
+ return undefined;
+ }
+ function getIndexTypeOfSymbol(symbol, kind) {
+ var declaration = getIndexDeclarationOfSymbol(symbol, kind);
+ return declaration
+ ? declaration.type ? getTypeFromTypeNode(declaration.type) : anyType
+ : undefined;
+ }
+ function getConstraintOfTypeParameter(type) {
+ if (!type.constraint) {
+ if (type.target) {
+ var targetConstraint = getConstraintOfTypeParameter(type.target);
+ type.constraint = targetConstraint ? instantiateType(targetConstraint, type.mapper) : noConstraintType;
+ }
+ else {
+ type.constraint = getTypeFromTypeNode(ts.getDeclarationOfKind(type.symbol, 137 /* TypeParameter */).constraint);
+ }
+ }
+ return type.constraint === noConstraintType ? undefined : type.constraint;
+ }
+ function getParentSymbolOfTypeParameter(typeParameter) {
+ return getSymbolOfNode(ts.getDeclarationOfKind(typeParameter.symbol, 137 /* TypeParameter */).parent);
+ }
+ function getTypeListId(types) {
+ if (types) {
+ switch (types.length) {
+ case 1:
+ return "" + types[0].id;
+ case 2:
+ return types[0].id + "," + types[1].id;
+ default:
+ var result = "";
+ for (var i = 0; i < types.length; i++) {
+ if (i > 0) {
+ result += ",";
+ }
+ result += types[i].id;
+ }
+ return result;
+ }
+ }
+ return "";
+ }
+ // This function is used to propagate certain flags when creating new object type references and union types.
+ // It is only necessary to do so if a constituent type might be the undefined type, the null type, the type
+ // of an object literal or the anyFunctionType. This is because there are operations in the type checker
+ // that care about the presence of such types at arbitrary depth in a containing type.
+ function getPropagatingFlagsOfTypes(types) {
+ var result = 0;
+ for (var _i = 0; _i < types.length; _i++) {
+ var type = types[_i];
+ result |= type.flags;
+ }
+ return result & 14680064 /* PropagatingFlags */;
+ }
+ function createTypeReference(target, typeArguments) {
+ var id = getTypeListId(typeArguments);
+ var type = target.instantiations[id];
+ if (!type) {
+ var flags = 4096 /* Reference */ | (typeArguments ? getPropagatingFlagsOfTypes(typeArguments) : 0);
+ type = target.instantiations[id] = createObjectType(flags, target.symbol);
+ type.target = target;
+ type.typeArguments = typeArguments;
+ }
+ return type;
+ }
+ function isTypeParameterReferenceIllegalInConstraint(typeReferenceNode, typeParameterSymbol) {
+ var links = getNodeLinks(typeReferenceNode);
+ if (links.isIllegalTypeReferenceInConstraint !== undefined) {
+ return links.isIllegalTypeReferenceInConstraint;
+ }
+ // bubble up to the declaration
+ var currentNode = typeReferenceNode;
+ // forEach === exists
+ while (!ts.forEach(typeParameterSymbol.declarations, function (d) { return d.parent === currentNode.parent; })) {
+ currentNode = currentNode.parent;
+ }
+ // if last step was made from the type parameter this means that path has started somewhere in constraint which is illegal
+ links.isIllegalTypeReferenceInConstraint = currentNode.kind === 137 /* TypeParameter */;
+ return links.isIllegalTypeReferenceInConstraint;
+ }
+ function checkTypeParameterHasIllegalReferencesInConstraint(typeParameter) {
+ var typeParameterSymbol;
+ function check(n) {
+ if (n.kind === 151 /* TypeReference */ && n.typeName.kind === 69 /* Identifier */) {
+ var links = getNodeLinks(n);
+ if (links.isIllegalTypeReferenceInConstraint === undefined) {
+ var symbol = resolveName(typeParameter, n.typeName.text, 793056 /* Type */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined);
+ if (symbol && (symbol.flags & 262144 /* TypeParameter */)) {
+ // TypeScript 1.0 spec (April 2014): 3.4.1
+ // Type parameters declared in a particular type parameter list
+ // may not be referenced in constraints in that type parameter list
+ // symbol.declaration.parent === typeParameter.parent
+ // -> typeParameter and symbol.declaration originate from the same type parameter list
+ // -> illegal for all declarations in symbol
+ // forEach === exists
+ links.isIllegalTypeReferenceInConstraint = ts.forEach(symbol.declarations, function (d) { return d.parent === typeParameter.parent; });
+ }
+ }
+ if (links.isIllegalTypeReferenceInConstraint) {
+ error(typeParameter, ts.Diagnostics.Constraint_of_a_type_parameter_cannot_reference_any_type_parameter_from_the_same_type_parameter_list);
+ }
+ }
+ ts.forEachChild(n, check);
+ }
+ if (typeParameter.constraint) {
+ typeParameterSymbol = getSymbolOfNode(typeParameter);
+ check(typeParameter.constraint);
+ }
+ }
+ // Get type from reference to class or interface
+ function getTypeFromClassOrInterfaceReference(node, symbol) {
+ var type = getDeclaredTypeOfSymbol(symbol);
+ var typeParameters = type.localTypeParameters;
+ if (typeParameters) {
+ if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
+ error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, typeToString(type, /*enclosingDeclaration*/ undefined, 1 /* WriteArrayAsGenericType */), typeParameters.length);
+ return unknownType;
+ }
+ // In a type reference, the outer type parameters of the referenced class or interface are automatically
+ // supplied as type arguments and the type reference only specifies arguments for the local type parameters
+ // of the class or interface.
+ return createTypeReference(type, ts.concatenate(type.outerTypeParameters, ts.map(node.typeArguments, getTypeFromTypeNode)));
+ }
+ if (node.typeArguments) {
+ error(node, ts.Diagnostics.Type_0_is_not_generic, typeToString(type));
+ return unknownType;
+ }
+ return type;
+ }
+ // Get type from reference to type alias. When a type alias is generic, the declared type of the type alias may include
+ // references to the type parameters of the alias. We replace those with the actual type arguments by instantiating the
+ // declared type. Instantiations are cached using the type identities of the type arguments as the key.
+ function getTypeFromTypeAliasReference(node, symbol) {
+ var type = getDeclaredTypeOfSymbol(symbol);
+ var links = getSymbolLinks(symbol);
+ var typeParameters = links.typeParameters;
+ if (typeParameters) {
+ if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
+ error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, symbolToString(symbol), typeParameters.length);
+ return unknownType;
+ }
+ var typeArguments = ts.map(node.typeArguments, getTypeFromTypeNode);
+ var id = getTypeListId(typeArguments);
+ return links.instantiations[id] || (links.instantiations[id] = instantiateType(type, createTypeMapper(typeParameters, typeArguments)));
+ }
+ if (node.typeArguments) {
+ error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
+ return unknownType;
+ }
+ return type;
+ }
+ // Get type from reference to named type that cannot be generic (enum or type parameter)
+ function getTypeFromNonGenericTypeReference(node, symbol) {
+ if (symbol.flags & 262144 /* TypeParameter */ && isTypeParameterReferenceIllegalInConstraint(node, symbol)) {
+ // TypeScript 1.0 spec (April 2014): 3.4.1
+ // Type parameters declared in a particular type parameter list
+ // may not be referenced in constraints in that type parameter list
+ // Implementation: such type references are resolved to 'unknown' type that usually denotes error
+ return unknownType;
+ }
+ if (node.typeArguments) {
+ error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
+ return unknownType;
+ }
+ return getDeclaredTypeOfSymbol(symbol);
+ }
+ function getTypeFromTypeReference(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ // We only support expressions that are simple qualified names. For other expressions this produces undefined.
+ var typeNameOrExpression = node.kind === 151 /* TypeReference */ ? node.typeName :
+ ts.isSupportedExpressionWithTypeArguments(node) ? node.expression :
+ undefined;
+ var symbol = typeNameOrExpression && resolveEntityName(typeNameOrExpression, 793056 /* Type */) || unknownSymbol;
+ var type = symbol === unknownSymbol ? unknownType :
+ symbol.flags & (32 /* Class */ | 64 /* Interface */) ? getTypeFromClassOrInterfaceReference(node, symbol) :
+ symbol.flags & 524288 /* TypeAlias */ ? getTypeFromTypeAliasReference(node, symbol) :
+ getTypeFromNonGenericTypeReference(node, symbol);
+ // Cache both the resolved symbol and the resolved type. The resolved symbol is needed in when we check the
+ // type reference in checkTypeReferenceOrExpressionWithTypeArguments.
+ links.resolvedSymbol = symbol;
+ links.resolvedType = type;
+ }
+ return links.resolvedType;
+ }
+ function getTypeFromTypeQueryNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ // TypeScript 1.0 spec (April 2014): 3.6.3
+ // The expression is processed as an identifier expression (section 4.3)
+ // or property access expression(section 4.10),
+ // the widened type(section 3.9) of which becomes the result.
+ links.resolvedType = getWidenedType(checkExpression(node.exprName));
+ }
+ return links.resolvedType;
+ }
+ function getTypeOfGlobalSymbol(symbol, arity) {
+ function getTypeDeclaration(symbol) {
+ var declarations = symbol.declarations;
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ switch (declaration.kind) {
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return declaration;
+ }
+ }
+ }
+ if (!symbol) {
+ return arity ? emptyGenericType : emptyObjectType;
+ }
+ var type = getDeclaredTypeOfSymbol(symbol);
+ if (!(type.flags & 80896 /* ObjectType */)) {
+ error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_be_a_class_or_interface_type, symbol.name);
+ return arity ? emptyGenericType : emptyObjectType;
+ }
+ if ((type.typeParameters ? type.typeParameters.length : 0) !== arity) {
+ error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_have_1_type_parameter_s, symbol.name, arity);
+ return arity ? emptyGenericType : emptyObjectType;
+ }
+ return type;
+ }
+ function getGlobalValueSymbol(name) {
+ return getGlobalSymbol(name, 107455 /* Value */, ts.Diagnostics.Cannot_find_global_value_0);
+ }
+ function getGlobalTypeSymbol(name) {
+ return getGlobalSymbol(name, 793056 /* Type */, ts.Diagnostics.Cannot_find_global_type_0);
+ }
+ function getGlobalSymbol(name, meaning, diagnostic) {
+ return resolveName(undefined, name, meaning, diagnostic, name);
+ }
+ function getGlobalType(name, arity) {
+ if (arity === void 0) { arity = 0; }
+ return getTypeOfGlobalSymbol(getGlobalTypeSymbol(name), arity);
+ }
+ function tryGetGlobalType(name, arity) {
+ if (arity === void 0) { arity = 0; }
+ return getTypeOfGlobalSymbol(getGlobalSymbol(name, 793056 /* Type */, /*diagnostic*/ undefined), arity);
+ }
+ /**
+ * Returns a type that is inside a namespace at the global scope, e.g.
+ * getExportedTypeFromNamespace('JSX', 'Element') returns the JSX.Element type
+ */
+ function getExportedTypeFromNamespace(namespace, name) {
+ var namespaceSymbol = getGlobalSymbol(namespace, 1536 /* Namespace */, /*diagnosticMessage*/ undefined);
+ var typeSymbol = namespaceSymbol && getSymbol(namespaceSymbol.exports, name, 793056 /* Type */);
+ return typeSymbol && getDeclaredTypeOfSymbol(typeSymbol);
+ }
+ function getGlobalESSymbolConstructorSymbol() {
+ return globalESSymbolConstructorSymbol || (globalESSymbolConstructorSymbol = getGlobalValueSymbol("Symbol"));
+ }
+ /**
+ * Creates a TypeReference for a generic `TypedPropertyDescriptor<T>`.
+ */
+ function createTypedPropertyDescriptorType(propertyType) {
+ var globalTypedPropertyDescriptorType = getGlobalTypedPropertyDescriptorType();
+ return globalTypedPropertyDescriptorType !== emptyGenericType
+ ? createTypeReference(globalTypedPropertyDescriptorType, [propertyType])
+ : emptyObjectType;
+ }
+ /**
+ * Instantiates a global type that is generic with some element type, and returns that instantiation.
+ */
+ function createTypeFromGenericGlobalType(genericGlobalType, typeArguments) {
+ return genericGlobalType !== emptyGenericType ? createTypeReference(genericGlobalType, typeArguments) : emptyObjectType;
+ }
+ function createIterableType(elementType) {
+ return createTypeFromGenericGlobalType(globalIterableType, [elementType]);
+ }
+ function createIterableIteratorType(elementType) {
+ return createTypeFromGenericGlobalType(globalIterableIteratorType, [elementType]);
+ }
+ function createArrayType(elementType) {
+ return createTypeFromGenericGlobalType(globalArrayType, [elementType]);
+ }
+ function getTypeFromArrayTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = createArrayType(getTypeFromTypeNode(node.elementType));
+ }
+ return links.resolvedType;
+ }
+ function createTupleType(elementTypes) {
+ var id = getTypeListId(elementTypes);
+ return tupleTypes[id] || (tupleTypes[id] = createNewTupleType(elementTypes));
+ }
+ function createNewTupleType(elementTypes) {
+ var type = createObjectType(8192 /* Tuple */ | getPropagatingFlagsOfTypes(elementTypes));
+ type.elementTypes = elementTypes;
+ return type;
+ }
+ function getTypeFromTupleTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = createTupleType(ts.map(node.elementTypes, getTypeFromTypeNode));
+ }
+ return links.resolvedType;
+ }
+ function addTypeToSet(typeSet, type, typeSetKind) {
+ if (type.flags & typeSetKind) {
+ addTypesToSet(typeSet, type.types, typeSetKind);
+ }
+ else if (!ts.contains(typeSet, type)) {
+ typeSet.push(type);
+ }
+ }
+ // Add the given types to the given type set. Order is preserved, duplicates are removed,
+ // and nested types of the given kind are flattened into the set.
+ function addTypesToSet(typeSet, types, typeSetKind) {
+ for (var _i = 0; _i < types.length; _i++) {
+ var type = types[_i];
+ addTypeToSet(typeSet, type, typeSetKind);
+ }
+ }
+ function isSubtypeOfAny(candidate, types) {
+ for (var i = 0, len = types.length; i < len; i++) {
+ if (candidate !== types[i] && isTypeSubtypeOf(candidate, types[i])) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function removeSubtypes(types) {
+ var i = types.length;
+ while (i > 0) {
+ i--;
+ if (isSubtypeOfAny(types[i], types)) {
+ types.splice(i, 1);
+ }
+ }
+ }
+ function containsTypeAny(types) {
+ for (var _i = 0; _i < types.length; _i++) {
+ var type = types[_i];
+ if (isTypeAny(type)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function removeAllButLast(types, typeToRemove) {
+ var i = types.length;
+ while (i > 0 && types.length > 1) {
+ i--;
+ if (types[i] === typeToRemove) {
+ types.splice(i, 1);
+ }
+ }
+ }
+ // We reduce the constituent type set to only include types that aren't subtypes of other types, unless
+ // the noSubtypeReduction flag is specified, in which case we perform a simple deduplication based on
+ // object identity. Subtype reduction is possible only when union types are known not to circularly
+ // reference themselves (as is the case with union types created by expression constructs such as array
+ // literals and the || and ?: operators). Named types can circularly reference themselves and therefore
+ // cannot be deduplicated during their declaration. For example, "type Item = string | (() => Item" is
+ // a named type that circularly references itself.
+ function getUnionType(types, noSubtypeReduction) {
+ if (types.length === 0) {
+ return emptyObjectType;
+ }
+ var typeSet = [];
+ addTypesToSet(typeSet, types, 16384 /* Union */);
+ if (containsTypeAny(typeSet)) {
+ return anyType;
+ }
+ if (noSubtypeReduction) {
+ removeAllButLast(typeSet, undefinedType);
+ removeAllButLast(typeSet, nullType);
+ }
+ else {
+ removeSubtypes(typeSet);
+ }
+ if (typeSet.length === 1) {
+ return typeSet[0];
+ }
+ var id = getTypeListId(typeSet);
+ var type = unionTypes[id];
+ if (!type) {
+ type = unionTypes[id] = createObjectType(16384 /* Union */ | getPropagatingFlagsOfTypes(typeSet));
+ type.types = typeSet;
+ }
+ return type;
+ }
+ function getTypeFromUnionTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = getUnionType(ts.map(node.types, getTypeFromTypeNode), /*noSubtypeReduction*/ true);
+ }
+ return links.resolvedType;
+ }
+ // We do not perform structural deduplication on intersection types. Intersection types are created only by the &
+ // type operator and we can't reduce those because we want to support recursive intersection types. For example,
+ // a type alias of the form "type List<T> = T & { next: List<T> }" cannot be reduced during its declaration.
+ // Also, unlike union types, the order of the constituent types is preserved in order that overload resolution
+ // for intersections of types with signatures can be deterministic.
+ function getIntersectionType(types) {
+ if (types.length === 0) {
+ return emptyObjectType;
+ }
+ var typeSet = [];
+ addTypesToSet(typeSet, types, 32768 /* Intersection */);
+ if (containsTypeAny(typeSet)) {
+ return anyType;
+ }
+ if (typeSet.length === 1) {
+ return typeSet[0];
+ }
+ var id = getTypeListId(typeSet);
+ var type = intersectionTypes[id];
+ if (!type) {
+ type = intersectionTypes[id] = createObjectType(32768 /* Intersection */ | getPropagatingFlagsOfTypes(typeSet));
+ type.types = typeSet;
+ }
+ return type;
+ }
+ function getTypeFromIntersectionTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = getIntersectionType(ts.map(node.types, getTypeFromTypeNode));
+ }
+ return links.resolvedType;
+ }
+ function getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ // Deferred resolution of members is handled by resolveObjectTypeMembers
+ links.resolvedType = createObjectType(65536 /* Anonymous */, node.symbol);
+ }
+ return links.resolvedType;
+ }
+ function getStringLiteralType(node) {
+ if (ts.hasProperty(stringLiteralTypes, node.text)) {
+ return stringLiteralTypes[node.text];
+ }
+ var type = stringLiteralTypes[node.text] = createType(256 /* StringLiteral */);
+ type.text = ts.getTextOfNode(node);
+ return type;
+ }
+ function getTypeFromStringLiteral(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = getStringLiteralType(node);
+ }
+ return links.resolvedType;
+ }
+ function getThisType(node) {
+ var container = ts.getThisContainer(node, /*includeArrowFunctions*/ false);
+ var parent = container && container.parent;
+ if (parent && (ts.isClassLike(parent) || parent.kind === 215 /* InterfaceDeclaration */)) {
+ if (!(container.flags & 128 /* Static */) &&
+ (container.kind !== 144 /* Constructor */ || ts.isNodeDescendentOf(node, container.body))) {
+ return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent)).thisType;
+ }
+ }
+ error(node, ts.Diagnostics.A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface);
+ return unknownType;
+ }
+ function getTypeFromThisTypeNode(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = getThisType(node);
+ }
+ return links.resolvedType;
+ }
+ function getTypeFromTypeNode(node) {
+ switch (node.kind) {
+ case 117 /* AnyKeyword */:
+ return anyType;
+ case 130 /* StringKeyword */:
+ return stringType;
+ case 128 /* NumberKeyword */:
+ return numberType;
+ case 120 /* BooleanKeyword */:
+ return booleanType;
+ case 131 /* SymbolKeyword */:
+ return esSymbolType;
+ case 103 /* VoidKeyword */:
+ return voidType;
+ case 97 /* ThisKeyword */:
+ return getTypeFromThisTypeNode(node);
+ case 9 /* StringLiteral */:
+ return getTypeFromStringLiteral(node);
+ case 151 /* TypeReference */:
+ return getTypeFromTypeReference(node);
+ case 150 /* TypePredicate */:
+ return booleanType;
+ case 188 /* ExpressionWithTypeArguments */:
+ return getTypeFromTypeReference(node);
+ case 154 /* TypeQuery */:
+ return getTypeFromTypeQueryNode(node);
+ case 156 /* ArrayType */:
+ return getTypeFromArrayTypeNode(node);
+ case 157 /* TupleType */:
+ return getTypeFromTupleTypeNode(node);
+ case 158 /* UnionType */:
+ return getTypeFromUnionTypeNode(node);
+ case 159 /* IntersectionType */:
+ return getTypeFromIntersectionTypeNode(node);
+ case 160 /* ParenthesizedType */:
+ return getTypeFromTypeNode(node.type);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 155 /* TypeLiteral */:
+ return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
+ // This function assumes that an identifier or qualified name is a type expression
+ // Callers should first ensure this by calling isTypeNode
+ case 69 /* Identifier */:
+ case 135 /* QualifiedName */:
+ var symbol = getSymbolAtLocation(node);
+ return symbol && getDeclaredTypeOfSymbol(symbol);
+ default:
+ return unknownType;
+ }
+ }
+ function instantiateList(items, mapper, instantiator) {
+ if (items && items.length) {
+ var result = [];
+ for (var _i = 0; _i < items.length; _i++) {
+ var v = items[_i];
+ result.push(instantiator(v, mapper));
+ }
+ return result;
+ }
+ return items;
+ }
+ function createUnaryTypeMapper(source, target) {
+ return function (t) { return t === source ? target : t; };
+ }
+ function createBinaryTypeMapper(source1, target1, source2, target2) {
+ return function (t) { return t === source1 ? target1 : t === source2 ? target2 : t; };
+ }
+ function createTypeMapper(sources, targets) {
+ switch (sources.length) {
+ case 1: return createUnaryTypeMapper(sources[0], targets[0]);
+ case 2: return createBinaryTypeMapper(sources[0], targets[0], sources[1], targets[1]);
+ }
+ return function (t) {
+ for (var i = 0; i < sources.length; i++) {
+ if (t === sources[i]) {
+ return targets[i];
+ }
+ }
+ return t;
+ };
+ }
+ function createUnaryTypeEraser(source) {
+ return function (t) { return t === source ? anyType : t; };
+ }
+ function createBinaryTypeEraser(source1, source2) {
+ return function (t) { return t === source1 || t === source2 ? anyType : t; };
+ }
+ function createTypeEraser(sources) {
+ switch (sources.length) {
+ case 1: return createUnaryTypeEraser(sources[0]);
+ case 2: return createBinaryTypeEraser(sources[0], sources[1]);
+ }
+ return function (t) {
+ for (var _i = 0; _i < sources.length; _i++) {
+ var source = sources[_i];
+ if (t === source) {
+ return anyType;
+ }
+ }
+ return t;
+ };
+ }
+ function createInferenceMapper(context) {
+ var mapper = function (t) {
+ for (var i = 0; i < context.typeParameters.length; i++) {
+ if (t === context.typeParameters[i]) {
+ context.inferences[i].isFixed = true;
+ return getInferredType(context, i);
+ }
+ }
+ return t;
+ };
+ mapper.context = context;
+ return mapper;
+ }
+ function identityMapper(type) {
+ return type;
+ }
+ function combineTypeMappers(mapper1, mapper2) {
+ return function (t) { return instantiateType(mapper1(t), mapper2); };
+ }
+ function instantiateTypeParameter(typeParameter, mapper) {
+ var result = createType(512 /* TypeParameter */);
+ result.symbol = typeParameter.symbol;
+ if (typeParameter.constraint) {
+ result.constraint = instantiateType(typeParameter.constraint, mapper);
+ }
+ else {
+ result.target = typeParameter;
+ result.mapper = mapper;
+ }
+ return result;
+ }
+ function instantiateSignature(signature, mapper, eraseTypeParameters) {
+ var freshTypeParameters;
+ var freshTypePredicate;
+ if (signature.typeParameters && !eraseTypeParameters) {
+ freshTypeParameters = instantiateList(signature.typeParameters, mapper, instantiateTypeParameter);
+ mapper = combineTypeMappers(createTypeMapper(signature.typeParameters, freshTypeParameters), mapper);
+ }
+ if (signature.typePredicate) {
+ freshTypePredicate = {
+ parameterName: signature.typePredicate.parameterName,
+ parameterIndex: signature.typePredicate.parameterIndex,
+ type: instantiateType(signature.typePredicate.type, mapper)
+ };
+ }
+ var result = createSignature(signature.declaration, freshTypeParameters, instantiateList(signature.parameters, mapper, instantiateSymbol), instantiateType(signature.resolvedReturnType, mapper), freshTypePredicate, signature.minArgumentCount, signature.hasRestParameter, signature.hasStringLiterals);
+ result.target = signature;
+ result.mapper = mapper;
+ return result;
+ }
+ function instantiateSymbol(symbol, mapper) {
+ if (symbol.flags & 16777216 /* Instantiated */) {
+ var links = getSymbolLinks(symbol);
+ // If symbol being instantiated is itself a instantiation, fetch the original target and combine the
+ // type mappers. This ensures that original type identities are properly preserved and that aliases
+ // always reference a non-aliases.
+ symbol = links.target;
+ mapper = combineTypeMappers(links.mapper, mapper);
+ }
+ // Keep the flags from the symbol we're instantiating. Mark that is instantiated, and
+ // also transient so that we can just store data on it directly.
+ var result = createSymbol(16777216 /* Instantiated */ | 67108864 /* Transient */ | symbol.flags, symbol.name);
+ result.declarations = symbol.declarations;
+ result.parent = symbol.parent;
+ result.target = symbol;
+ result.mapper = mapper;
+ if (symbol.valueDeclaration) {
+ result.valueDeclaration = symbol.valueDeclaration;
+ }
+ return result;
+ }
+ function instantiateAnonymousType(type, mapper) {
+ if (mapper.instantiations) {
+ var cachedType = mapper.instantiations[type.id];
+ if (cachedType) {
+ return cachedType;
+ }
+ }
+ else {
+ mapper.instantiations = [];
+ }
+ // Mark the anonymous type as instantiated such that our infinite instantiation detection logic can recognize it
+ var result = createObjectType(65536 /* Anonymous */ | 131072 /* Instantiated */, type.symbol);
+ result.target = type;
+ result.mapper = mapper;
+ mapper.instantiations[type.id] = result;
+ return result;
+ }
+ function instantiateType(type, mapper) {
+ if (type && mapper !== identityMapper) {
+ if (type.flags & 512 /* TypeParameter */) {
+ return mapper(type);
+ }
+ if (type.flags & 65536 /* Anonymous */) {
+ return type.symbol && type.symbol.flags & (16 /* Function */ | 8192 /* Method */ | 32 /* Class */ | 2048 /* TypeLiteral */ | 4096 /* ObjectLiteral */) ?
+ instantiateAnonymousType(type, mapper) : type;
+ }
+ if (type.flags & 4096 /* Reference */) {
+ return createTypeReference(type.target, instantiateList(type.typeArguments, mapper, instantiateType));
+ }
+ if (type.flags & 8192 /* Tuple */) {
+ return createTupleType(instantiateList(type.elementTypes, mapper, instantiateType));
+ }
+ if (type.flags & 16384 /* Union */) {
+ return getUnionType(instantiateList(type.types, mapper, instantiateType), /*noSubtypeReduction*/ true);
+ }
+ if (type.flags & 32768 /* Intersection */) {
+ return getIntersectionType(instantiateList(type.types, mapper, instantiateType));
+ }
+ }
+ return type;
+ }
+ // Returns true if the given expression contains (at any level of nesting) a function or arrow expression
+ // that is subject to contextual typing.
+ function isContextSensitive(node) {
+ ts.Debug.assert(node.kind !== 143 /* MethodDeclaration */ || ts.isObjectLiteralMethod(node));
+ switch (node.kind) {
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return isContextSensitiveFunctionLikeDeclaration(node);
+ case 165 /* ObjectLiteralExpression */:
+ return ts.forEach(node.properties, isContextSensitive);
+ case 164 /* ArrayLiteralExpression */:
+ return ts.forEach(node.elements, isContextSensitive);
+ case 182 /* ConditionalExpression */:
+ return isContextSensitive(node.whenTrue) ||
+ isContextSensitive(node.whenFalse);
+ case 181 /* BinaryExpression */:
+ return node.operatorToken.kind === 52 /* BarBarToken */ &&
+ (isContextSensitive(node.left) || isContextSensitive(node.right));
+ case 245 /* PropertyAssignment */:
+ return isContextSensitive(node.initializer);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return isContextSensitiveFunctionLikeDeclaration(node);
+ case 172 /* ParenthesizedExpression */:
+ return isContextSensitive(node.expression);
+ }
+ return false;
+ }
+ function isContextSensitiveFunctionLikeDeclaration(node) {
+ return !node.typeParameters && node.parameters.length && !ts.forEach(node.parameters, function (p) { return p.type; });
+ }
+ function getTypeWithoutSignatures(type) {
+ if (type.flags & 80896 /* ObjectType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (resolved.constructSignatures.length) {
+ var result = createObjectType(65536 /* Anonymous */, type.symbol);
+ result.members = resolved.members;
+ result.properties = resolved.properties;
+ result.callSignatures = emptyArray;
+ result.constructSignatures = emptyArray;
+ type = result;
+ }
+ }
+ return type;
+ }
+ // TYPE CHECKING
+ function isTypeIdenticalTo(source, target) {
+ return checkTypeRelatedTo(source, target, identityRelation, /*errorNode*/ undefined);
+ }
+ function compareTypes(source, target) {
+ return checkTypeRelatedTo(source, target, identityRelation, /*errorNode*/ undefined) ? -1 /* True */ : 0 /* False */;
+ }
+ function isTypeSubtypeOf(source, target) {
+ return checkTypeSubtypeOf(source, target, /*errorNode*/ undefined);
+ }
+ function isTypeAssignableTo(source, target) {
+ return checkTypeAssignableTo(source, target, /*errorNode*/ undefined);
+ }
+ function checkTypeSubtypeOf(source, target, errorNode, headMessage, containingMessageChain) {
+ return checkTypeRelatedTo(source, target, subtypeRelation, errorNode, headMessage, containingMessageChain);
+ }
+ function checkTypeAssignableTo(source, target, errorNode, headMessage, containingMessageChain) {
+ return checkTypeRelatedTo(source, target, assignableRelation, errorNode, headMessage, containingMessageChain);
+ }
+ function isSignatureAssignableTo(source, target) {
+ var sourceType = getOrCreateTypeFromSignature(source);
+ var targetType = getOrCreateTypeFromSignature(target);
+ return checkTypeRelatedTo(sourceType, targetType, assignableRelation, /*errorNode*/ undefined);
+ }
+ /**
+ * Checks if 'source' is related to 'target' (e.g.: is a assignable to).
+ * @param source The left-hand-side of the relation.
+ * @param target The right-hand-side of the relation.
+ * @param relation The relation considered. One of 'identityRelation', 'assignableRelation', or 'subTypeRelation'.
+ * Used as both to determine which checks are performed and as a cache of previously computed results.
+ * @param errorNode The suggested node upon which all errors will be reported, if defined. This may or may not be the actual node used.
+ * @param headMessage If the error chain should be prepended by a head message, then headMessage will be used.
+ * @param containingMessageChain A chain of errors to prepend any new errors found.
+ */
+ function checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain) {
+ var errorInfo;
+ var sourceStack;
+ var targetStack;
+ var maybeStack;
+ var expandingFlags;
+ var depth = 0;
+ var overflow = false;
+ var elaborateErrors = false;
+ ts.Debug.assert(relation !== identityRelation || !errorNode, "no error reporting in identity checking");
+ var result = isRelatedTo(source, target, errorNode !== undefined, headMessage);
+ if (overflow) {
+ error(errorNode, ts.Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
+ }
+ else if (errorInfo) {
+ // If we already computed this relation, but in a context where we didn't want to report errors (e.g. overload resolution),
+ // then we'll only have a top-level error (e.g. 'Class X does not implement interface Y') without any details. If this happened,
+ // request a recompuation to get a complete error message. This will be skipped if we've already done this computation in a context
+ // where errors were being reported.
+ if (errorInfo.next === undefined) {
+ errorInfo = undefined;
+ elaborateErrors = true;
+ isRelatedTo(source, target, errorNode !== undefined, headMessage);
+ }
+ if (containingMessageChain) {
+ errorInfo = ts.concatenateDiagnosticMessageChains(containingMessageChain, errorInfo);
+ }
+ diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(errorNode, errorInfo));
+ }
+ return result !== 0 /* False */;
+ function reportError(message, arg0, arg1, arg2) {
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2);
+ }
+ function reportRelationError(message, source, target) {
+ var sourceType = typeToString(source);
+ var targetType = typeToString(target);
+ if (sourceType === targetType) {
+ sourceType = typeToString(source, /*enclosingDeclaration*/ undefined, 128 /* UseFullyQualifiedType */);
+ targetType = typeToString(target, /*enclosingDeclaration*/ undefined, 128 /* UseFullyQualifiedType */);
+ }
+ reportError(message || ts.Diagnostics.Type_0_is_not_assignable_to_type_1, sourceType, targetType);
+ }
+ // Compare two types and return
+ // Ternary.True if they are related with no assumptions,
+ // Ternary.Maybe if they are related with assumptions of other relationships, or
+ // Ternary.False if they are not related.
+ function isRelatedTo(source, target, reportErrors, headMessage) {
+ var result;
+ // both types are the same - covers 'they are the same primitive type or both are Any' or the same type parameter cases
+ if (source === target)
+ return -1 /* True */;
+ if (relation === identityRelation) {
+ return isIdenticalTo(source, target);
+ }
+ if (isTypeAny(target))
+ return -1 /* True */;
+ if (source === undefinedType)
+ return -1 /* True */;
+ if (source === nullType && target !== undefinedType)
+ return -1 /* True */;
+ if (source.flags & 128 /* Enum */ && target === numberType)
+ return -1 /* True */;
+ if (source.flags & 256 /* StringLiteral */ && target === stringType)
+ return -1 /* True */;
+ if (relation === assignableRelation) {
+ if (isTypeAny(source))
+ return -1 /* True */;
+ if (source === numberType && target.flags & 128 /* Enum */)
+ return -1 /* True */;
+ }
+ if (source.flags & 1048576 /* FreshObjectLiteral */) {
+ if (hasExcessProperties(source, target, reportErrors)) {
+ if (reportErrors) {
+ reportRelationError(headMessage, source, target);
+ }
+ return 0 /* False */;
+ }
+ // Above we check for excess properties with respect to the entire target type. When union
+ // and intersection types are further deconstructed on the target side, we don't want to
+ // make the check again (as it might fail for a partial target type). Therefore we obtain
+ // the regular source type and proceed with that.
+ if (target.flags & 49152 /* UnionOrIntersection */) {
+ source = getRegularTypeOfObjectLiteral(source);
+ }
+ }
+ var saveErrorInfo = errorInfo;
+ // Note that the "each" checks must precede the "some" checks to produce the correct results
+ if (source.flags & 16384 /* Union */) {
+ if (result = eachTypeRelatedToType(source, target, reportErrors)) {
+ return result;
+ }
+ }
+ else if (target.flags & 32768 /* Intersection */) {
+ if (result = typeRelatedToEachType(source, target, reportErrors)) {
+ return result;
+ }
+ }
+ else {
+ // It is necessary to try "some" checks on both sides because there may be nested "each" checks
+ // on either side that need to be prioritized. For example, A | B = (A | B) & (C | D) or
+ // A & B = (A & B) | (C & D).
+ if (source.flags & 32768 /* Intersection */) {
+ // If target is a union type the following check will report errors so we suppress them here
+ if (result = someTypeRelatedToType(source, target, reportErrors && !(target.flags & 16384 /* Union */))) {
+ return result;
+ }
+ }
+ if (target.flags & 16384 /* Union */) {
+ if (result = typeRelatedToSomeType(source, target, reportErrors)) {
+ return result;
+ }
+ }
+ }
+ if (source.flags & 512 /* TypeParameter */) {
+ var constraint = getConstraintOfTypeParameter(source);
+ if (!constraint || constraint.flags & 1 /* Any */) {
+ constraint = emptyObjectType;
+ }
+ // Report constraint errors only if the constraint is not the empty object type
+ var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
+ if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
+ errorInfo = saveErrorInfo;
+ return result;
+ }
+ }
+ else {
+ if (source.flags & 4096 /* Reference */ && target.flags & 4096 /* Reference */ && source.target === target.target) {
+ // We have type references to same target type, see if relationship holds for all type arguments
+ if (result = typeArgumentsRelatedTo(source, target, reportErrors)) {
+ return result;
+ }
+ }
+ // Even if relationship doesn't hold for unions, intersections, or generic type references,
+ // it may hold in a structural comparison.
+ var apparentType = getApparentType(source);
+ // In a check of the form X = A & B, we will have previously checked if A relates to X or B relates
+ // to X. Failing both of those we want to check if the aggregation of A and B's members structurally
+ // relates to X. Thus, we include intersection types on the source side here.
+ if (apparentType.flags & (80896 /* ObjectType */ | 32768 /* Intersection */) && target.flags & 80896 /* ObjectType */) {
+ // Report structural errors only if we haven't reported any errors yet
+ var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo;
+ if (result = objectTypeRelatedTo(apparentType, target, reportStructuralErrors)) {
+ errorInfo = saveErrorInfo;
+ return result;
+ }
+ }
+ }
+ if (reportErrors) {
+ reportRelationError(headMessage, source, target);
+ }
+ return 0 /* False */;
+ }
+ function isIdenticalTo(source, target) {
+ var result;
+ if (source.flags & 80896 /* ObjectType */ && target.flags & 80896 /* ObjectType */) {
+ if (source.flags & 4096 /* Reference */ && target.flags & 4096 /* Reference */ && source.target === target.target) {
+ // We have type references to same target type, see if all type arguments are identical
+ if (result = typeArgumentsRelatedTo(source, target, /*reportErrors*/ false)) {
+ return result;
+ }
+ }
+ return objectTypeRelatedTo(source, target, /*reportErrors*/ false);
+ }
+ if (source.flags & 512 /* TypeParameter */ && target.flags & 512 /* TypeParameter */) {
+ return typeParameterIdenticalTo(source, target);
+ }
+ if (source.flags & 16384 /* Union */ && target.flags & 16384 /* Union */ ||
+ source.flags & 32768 /* Intersection */ && target.flags & 32768 /* Intersection */) {
+ if (result = eachTypeRelatedToSomeType(source, target)) {
+ if (result &= eachTypeRelatedToSomeType(target, source)) {
+ return result;
+ }
+ }
+ }
+ return 0 /* False */;
+ }
+ // Check if a property with the given name is known anywhere in the given type. In an object type, a property
+ // is considered known if the object type is empty and the check is for assignability, if the object type has
+ // index signatures, or if the property is actually declared in the object type. In a union or intersection
+ // type, a property is considered known if it is known in any constituent type.
+ function isKnownProperty(type, name) {
+ if (type.flags & 80896 /* ObjectType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (relation === assignableRelation && (type === globalObjectType || resolved.properties.length === 0) ||
+ resolved.stringIndexType || resolved.numberIndexType || getPropertyOfType(type, name)) {
+ return true;
+ }
+ return false;
+ }
+ if (type.flags & 49152 /* UnionOrIntersection */) {
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var t = _a[_i];
+ if (isKnownProperty(t, name)) {
+ return true;
+ }
+ }
+ return false;
+ }
+ return true;
+ }
+ function hasExcessProperties(source, target, reportErrors) {
+ for (var _i = 0, _a = getPropertiesOfObjectType(source); _i < _a.length; _i++) {
+ var prop = _a[_i];
+ if (!isKnownProperty(target, prop.name)) {
+ if (reportErrors) {
+ // We know *exactly* where things went wrong when comparing the types.
+ // Use this property as the error node as this will be more helpful in
+ // reasoning about what went wrong.
+ errorNode = prop.valueDeclaration;
+ reportError(ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(prop), typeToString(target));
+ }
+ return true;
+ }
+ }
+ }
+ function eachTypeRelatedToSomeType(source, target) {
+ var result = -1 /* True */;
+ var sourceTypes = source.types;
+ for (var _i = 0; _i < sourceTypes.length; _i++) {
+ var sourceType = sourceTypes[_i];
+ var related = typeRelatedToSomeType(sourceType, target, false);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function typeRelatedToSomeType(source, target, reportErrors) {
+ var targetTypes = target.types;
+ for (var i = 0, len = targetTypes.length; i < len; i++) {
+ var related = isRelatedTo(source, targetTypes[i], reportErrors && i === len - 1);
+ if (related) {
+ return related;
+ }
+ }
+ return 0 /* False */;
+ }
+ function typeRelatedToEachType(source, target, reportErrors) {
+ var result = -1 /* True */;
+ var targetTypes = target.types;
+ for (var _i = 0; _i < targetTypes.length; _i++) {
+ var targetType = targetTypes[_i];
+ var related = isRelatedTo(source, targetType, reportErrors);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function someTypeRelatedToType(source, target, reportErrors) {
+ var sourceTypes = source.types;
+ for (var i = 0, len = sourceTypes.length; i < len; i++) {
+ var related = isRelatedTo(sourceTypes[i], target, reportErrors && i === len - 1);
+ if (related) {
+ return related;
+ }
+ }
+ return 0 /* False */;
+ }
+ function eachTypeRelatedToType(source, target, reportErrors) {
+ var result = -1 /* True */;
+ var sourceTypes = source.types;
+ for (var _i = 0; _i < sourceTypes.length; _i++) {
+ var sourceType = sourceTypes[_i];
+ var related = isRelatedTo(sourceType, target, reportErrors);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function typeArgumentsRelatedTo(source, target, reportErrors) {
+ var sources = source.typeArguments || emptyArray;
+ var targets = target.typeArguments || emptyArray;
+ if (sources.length !== targets.length && relation === identityRelation) {
+ return 0 /* False */;
+ }
+ var result = -1 /* True */;
+ for (var i = 0; i < targets.length; i++) {
+ var related = isRelatedTo(sources[i], targets[i], reportErrors);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function typeParameterIdenticalTo(source, target) {
+ if (source.symbol.name !== target.symbol.name) {
+ return 0 /* False */;
+ }
+ // covers case when both type parameters does not have constraint (both equal to noConstraintType)
+ if (source.constraint === target.constraint) {
+ return -1 /* True */;
+ }
+ if (source.constraint === noConstraintType || target.constraint === noConstraintType) {
+ return 0 /* False */;
+ }
+ return isIdenticalTo(source.constraint, target.constraint);
+ }
+ // Determine if two object types are related by structure. First, check if the result is already available in the global cache.
+ // Second, check if we have already started a comparison of the given two types in which case we assume the result to be true.
+ // Third, check if both types are part of deeply nested chains of generic type instantiations and if so assume the types are
+ // equal and infinitely expanding. Fourth, if we have reached a depth of 100 nested comparisons, assume we have runaway recursion
+ // and issue an error. Otherwise, actually compare the structure of the two types.
+ function objectTypeRelatedTo(source, target, reportErrors) {
+ if (overflow) {
+ return 0 /* False */;
+ }
+ var id = relation !== identityRelation || source.id < target.id ? source.id + "," + target.id : target.id + "," + source.id;
+ var related = relation[id];
+ if (related !== undefined) {
+ // If we computed this relation already and it was failed and reported, or if we're not being asked to elaborate
+ // errors, we can use the cached value. Otherwise, recompute the relation
+ if (!elaborateErrors || (related === 3 /* FailedAndReported */)) {
+ return related === 1 /* Succeeded */ ? -1 /* True */ : 0 /* False */;
+ }
+ }
+ if (depth > 0) {
+ for (var i = 0; i < depth; i++) {
+ // If source and target are already being compared, consider them related with assumptions
+ if (maybeStack[i][id]) {
+ return 1 /* Maybe */;
+ }
+ }
+ if (depth === 100) {
+ overflow = true;
+ return 0 /* False */;
+ }
+ }
+ else {
+ sourceStack = [];
+ targetStack = [];
+ maybeStack = [];
+ expandingFlags = 0;
+ }
+ sourceStack[depth] = source;
+ targetStack[depth] = target;
+ maybeStack[depth] = {};
+ maybeStack[depth][id] = 1 /* Succeeded */;
+ depth++;
+ var saveExpandingFlags = expandingFlags;
+ if (!(expandingFlags & 1) && isDeeplyNestedGeneric(source, sourceStack, depth))
+ expandingFlags |= 1;
+ if (!(expandingFlags & 2) && isDeeplyNestedGeneric(target, targetStack, depth))
+ expandingFlags |= 2;
+ var result;
+ if (expandingFlags === 3) {
+ result = 1 /* Maybe */;
+ }
+ else {
+ result = propertiesRelatedTo(source, target, reportErrors);
+ if (result) {
+ result &= signaturesRelatedTo(source, target, 0 /* Call */, reportErrors);
+ if (result) {
+ result &= signaturesRelatedTo(source, target, 1 /* Construct */, reportErrors);
+ if (result) {
+ result &= stringIndexTypesRelatedTo(source, target, reportErrors);
+ if (result) {
+ result &= numberIndexTypesRelatedTo(source, target, reportErrors);
+ }
+ }
+ }
+ }
+ }
+ expandingFlags = saveExpandingFlags;
+ depth--;
+ if (result) {
+ var maybeCache = maybeStack[depth];
+ // If result is definitely true, copy assumptions to global cache, else copy to next level up
+ var destinationCache = (result === -1 /* True */ || depth === 0) ? relation : maybeStack[depth - 1];
+ ts.copyMap(maybeCache, destinationCache);
+ }
+ else {
+ // A false result goes straight into global cache (when something is false under assumptions it
+ // will also be false without assumptions)
+ relation[id] = reportErrors ? 3 /* FailedAndReported */ : 2 /* Failed */;
+ }
+ return result;
+ }
+ function propertiesRelatedTo(source, target, reportErrors) {
+ if (relation === identityRelation) {
+ return propertiesIdenticalTo(source, target);
+ }
+ var result = -1 /* True */;
+ var properties = getPropertiesOfObjectType(target);
+ var requireOptionalProperties = relation === subtypeRelation && !(source.flags & 524288 /* ObjectLiteral */);
+ for (var _i = 0; _i < properties.length; _i++) {
+ var targetProp = properties[_i];
+ var sourceProp = getPropertyOfType(source, targetProp.name);
+ if (sourceProp !== targetProp) {
+ if (!sourceProp) {
+ if (!(targetProp.flags & 536870912 /* Optional */) || requireOptionalProperties) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Property_0_is_missing_in_type_1, symbolToString(targetProp), typeToString(source));
+ }
+ return 0 /* False */;
+ }
+ }
+ else if (!(targetProp.flags & 134217728 /* Prototype */)) {
+ var sourcePropFlags = getDeclarationFlagsFromSymbol(sourceProp);
+ var targetPropFlags = getDeclarationFlagsFromSymbol(targetProp);
+ if (sourcePropFlags & 32 /* Private */ || targetPropFlags & 32 /* Private */) {
+ if (sourceProp.valueDeclaration !== targetProp.valueDeclaration) {
+ if (reportErrors) {
+ if (sourcePropFlags & 32 /* Private */ && targetPropFlags & 32 /* Private */) {
+ reportError(ts.Diagnostics.Types_have_separate_declarations_of_a_private_property_0, symbolToString(targetProp));
+ }
+ else {
+ reportError(ts.Diagnostics.Property_0_is_private_in_type_1_but_not_in_type_2, symbolToString(targetProp), typeToString(sourcePropFlags & 32 /* Private */ ? source : target), typeToString(sourcePropFlags & 32 /* Private */ ? target : source));
+ }
+ }
+ return 0 /* False */;
+ }
+ }
+ else if (targetPropFlags & 64 /* Protected */) {
+ var sourceDeclaredInClass = sourceProp.parent && sourceProp.parent.flags & 32 /* Class */;
+ var sourceClass = sourceDeclaredInClass ? getDeclaredTypeOfSymbol(sourceProp.parent) : undefined;
+ var targetClass = getDeclaredTypeOfSymbol(targetProp.parent);
+ if (!sourceClass || !hasBaseType(sourceClass, targetClass)) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2, symbolToString(targetProp), typeToString(sourceClass || source), typeToString(targetClass));
+ }
+ return 0 /* False */;
+ }
+ }
+ else if (sourcePropFlags & 64 /* Protected */) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Property_0_is_protected_in_type_1_but_public_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
+ }
+ return 0 /* False */;
+ }
+ var related = isRelatedTo(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp), reportErrors);
+ if (!related) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Types_of_property_0_are_incompatible, symbolToString(targetProp));
+ }
+ return 0 /* False */;
+ }
+ result &= related;
+ if (sourceProp.flags & 536870912 /* Optional */ && !(targetProp.flags & 536870912 /* Optional */)) {
+ // TypeScript 1.0 spec (April 2014): 3.8.3
+ // S is a subtype of a type T, and T is a supertype of S if ...
+ // S' and T are object types and, for each member M in T..
+ // M is a property and S' contains a property N where
+ // if M is a required property, N is also a required property
+ // (M - property in T)
+ // (N - property in S)
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Property_0_is_optional_in_type_1_but_required_in_type_2, symbolToString(targetProp), typeToString(source), typeToString(target));
+ }
+ return 0 /* False */;
+ }
+ }
+ }
+ }
+ return result;
+ }
+ function propertiesIdenticalTo(source, target) {
+ if (!(source.flags & 80896 /* ObjectType */ && target.flags & 80896 /* ObjectType */)) {
+ return 0 /* False */;
+ }
+ var sourceProperties = getPropertiesOfObjectType(source);
+ var targetProperties = getPropertiesOfObjectType(target);
+ if (sourceProperties.length !== targetProperties.length) {
+ return 0 /* False */;
+ }
+ var result = -1 /* True */;
+ for (var _i = 0; _i < sourceProperties.length; _i++) {
+ var sourceProp = sourceProperties[_i];
+ var targetProp = getPropertyOfObjectType(target, sourceProp.name);
+ if (!targetProp) {
+ return 0 /* False */;
+ }
+ var related = compareProperties(sourceProp, targetProp, isRelatedTo);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function signaturesRelatedTo(source, target, kind, reportErrors) {
+ if (relation === identityRelation) {
+ return signaturesIdenticalTo(source, target, kind);
+ }
+ if (target === anyFunctionType || source === anyFunctionType) {
+ return -1 /* True */;
+ }
+ var sourceSignatures = getSignaturesOfType(source, kind);
+ var targetSignatures = getSignaturesOfType(target, kind);
+ var result = -1 /* True */;
+ var saveErrorInfo = errorInfo;
+ if (kind === 1 /* Construct */) {
+ // Only want to compare the construct signatures for abstractness guarantees.
+ // Because the "abstractness" of a class is the same across all construct signatures
+ // (internally we are checking the corresponding declaration), it is enough to perform
+ // the check and report an error once over all pairs of source and target construct signatures.
+ //
+ // sourceSig and targetSig are (possibly) undefined.
+ //
+ // Note that in an extends-clause, targetSignatures is stripped, so the check never proceeds.
+ var sourceSig = sourceSignatures[0];
+ var targetSig = targetSignatures[0];
+ result &= abstractSignatureRelatedTo(source, sourceSig, target, targetSig);
+ if (result !== -1 /* True */) {
+ return result;
+ }
+ }
+ outer: for (var _i = 0; _i < targetSignatures.length; _i++) {
+ var t = targetSignatures[_i];
+ if (!t.hasStringLiterals || target.flags & 262144 /* FromSignature */) {
+ var localErrors = reportErrors;
+ var checkedAbstractAssignability = false;
+ for (var _a = 0; _a < sourceSignatures.length; _a++) {
+ var s = sourceSignatures[_a];
+ if (!s.hasStringLiterals || source.flags & 262144 /* FromSignature */) {
+ var related = signatureRelatedTo(s, t, localErrors);
+ if (related) {
+ result &= related;
+ errorInfo = saveErrorInfo;
+ continue outer;
+ }
+ // Only report errors from the first failure
+ localErrors = false;
+ }
+ }
+ return 0 /* False */;
+ }
+ }
+ return result;
+ function abstractSignatureRelatedTo(source, sourceSig, target, targetSig) {
+ if (sourceSig && targetSig) {
+ var sourceDecl = source.symbol && getClassLikeDeclarationOfSymbol(source.symbol);
+ var targetDecl = target.symbol && getClassLikeDeclarationOfSymbol(target.symbol);
+ if (!sourceDecl) {
+ // If the source object isn't itself a class declaration, it can be freely assigned, regardless
+ // of whether the constructed object is abstract or not.
+ return -1 /* True */;
+ }
+ var sourceErasedSignature = getErasedSignature(sourceSig);
+ var targetErasedSignature = getErasedSignature(targetSig);
+ var sourceReturnType = sourceErasedSignature && getReturnTypeOfSignature(sourceErasedSignature);
+ var targetReturnType = targetErasedSignature && getReturnTypeOfSignature(targetErasedSignature);
+ var sourceReturnDecl = sourceReturnType && sourceReturnType.symbol && getClassLikeDeclarationOfSymbol(sourceReturnType.symbol);
+ var targetReturnDecl = targetReturnType && targetReturnType.symbol && getClassLikeDeclarationOfSymbol(targetReturnType.symbol);
+ var sourceIsAbstract = sourceReturnDecl && sourceReturnDecl.flags & 256 /* Abstract */;
+ var targetIsAbstract = targetReturnDecl && targetReturnDecl.flags & 256 /* Abstract */;
+ if (sourceIsAbstract && !(targetIsAbstract && targetDecl)) {
+ // if target isn't a class-declaration type, then it can be new'd, so we forbid the assignment.
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type);
+ }
+ return 0 /* False */;
+ }
+ }
+ return -1 /* True */;
+ }
+ }
+ function signatureRelatedTo(source, target, reportErrors) {
+ if (source === target) {
+ return -1 /* True */;
+ }
+ if (!target.hasRestParameter && source.minArgumentCount > target.parameters.length) {
+ return 0 /* False */;
+ }
+ var sourceMax = source.parameters.length;
+ var targetMax = target.parameters.length;
+ var checkCount;
+ if (source.hasRestParameter && target.hasRestParameter) {
+ checkCount = sourceMax > targetMax ? sourceMax : targetMax;
+ sourceMax--;
+ targetMax--;
+ }
+ else if (source.hasRestParameter) {
+ sourceMax--;
+ checkCount = targetMax;
+ }
+ else if (target.hasRestParameter) {
+ targetMax--;
+ checkCount = sourceMax;
+ }
+ else {
+ checkCount = sourceMax < targetMax ? sourceMax : targetMax;
+ }
+ // Spec 1.0 Section 3.8.3 & 3.8.4:
+ // M and N (the signatures) are instantiated using type Any as the type argument for all type parameters declared by M and N
+ source = getErasedSignature(source);
+ target = getErasedSignature(target);
+ var result = -1 /* True */;
+ for (var i = 0; i < checkCount; i++) {
+ var s = i < sourceMax ? getTypeOfSymbol(source.parameters[i]) : getRestTypeOfSignature(source);
+ var t = i < targetMax ? getTypeOfSymbol(target.parameters[i]) : getRestTypeOfSignature(target);
+ var saveErrorInfo = errorInfo;
+ var related = isRelatedTo(s, t, reportErrors);
+ if (!related) {
+ related = isRelatedTo(t, s, false);
+ if (!related) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Types_of_parameters_0_and_1_are_incompatible, source.parameters[i < sourceMax ? i : sourceMax].name, target.parameters[i < targetMax ? i : targetMax].name);
+ }
+ return 0 /* False */;
+ }
+ errorInfo = saveErrorInfo;
+ }
+ result &= related;
+ }
+ if (source.typePredicate && target.typePredicate) {
+ var hasDifferentParameterIndex = source.typePredicate.parameterIndex !== target.typePredicate.parameterIndex;
+ var hasDifferentTypes;
+ if (hasDifferentParameterIndex ||
+ (hasDifferentTypes = !isTypeIdenticalTo(source.typePredicate.type, target.typePredicate.type))) {
+ if (reportErrors) {
+ var sourceParamText = source.typePredicate.parameterName;
+ var targetParamText = target.typePredicate.parameterName;
+ var sourceTypeText = typeToString(source.typePredicate.type);
+ var targetTypeText = typeToString(target.typePredicate.type);
+ if (hasDifferentParameterIndex) {
+ reportError(ts.Diagnostics.Parameter_0_is_not_in_the_same_position_as_parameter_1, sourceParamText, targetParamText);
+ }
+ else if (hasDifferentTypes) {
+ reportError(ts.Diagnostics.Type_0_is_not_assignable_to_type_1, sourceTypeText, targetTypeText);
+ }
+ reportError(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, sourceParamText + " is " + sourceTypeText, targetParamText + " is " + targetTypeText);
+ }
+ return 0 /* False */;
+ }
+ }
+ else if (!source.typePredicate && target.typePredicate) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Signature_0_must_have_a_type_predicate, signatureToString(source));
+ }
+ return 0 /* False */;
+ }
+ var targetReturnType = getReturnTypeOfSignature(target);
+ if (targetReturnType === voidType)
+ return result;
+ var sourceReturnType = getReturnTypeOfSignature(source);
+ return result & isRelatedTo(sourceReturnType, targetReturnType, reportErrors);
+ }
+ function signaturesIdenticalTo(source, target, kind) {
+ var sourceSignatures = getSignaturesOfType(source, kind);
+ var targetSignatures = getSignaturesOfType(target, kind);
+ if (sourceSignatures.length !== targetSignatures.length) {
+ return 0 /* False */;
+ }
+ var result = -1 /* True */;
+ for (var i = 0, len = sourceSignatures.length; i < len; ++i) {
+ var related = compareSignatures(sourceSignatures[i], targetSignatures[i], /*partialMatch*/ false, /*ignoreReturnTypes*/ false, isRelatedTo);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ return result;
+ }
+ function stringIndexTypesRelatedTo(source, target, reportErrors) {
+ if (relation === identityRelation) {
+ return indexTypesIdenticalTo(0 /* String */, source, target);
+ }
+ var targetType = getIndexTypeOfType(target, 0 /* String */);
+ if (targetType && !(targetType.flags & 1 /* Any */)) {
+ var sourceType = getIndexTypeOfType(source, 0 /* String */);
+ if (!sourceType) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Index_signature_is_missing_in_type_0, typeToString(source));
+ }
+ return 0 /* False */;
+ }
+ var related = isRelatedTo(sourceType, targetType, reportErrors);
+ if (!related) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Index_signatures_are_incompatible);
+ }
+ return 0 /* False */;
+ }
+ return related;
+ }
+ return -1 /* True */;
+ }
+ function numberIndexTypesRelatedTo(source, target, reportErrors) {
+ if (relation === identityRelation) {
+ return indexTypesIdenticalTo(1 /* Number */, source, target);
+ }
+ var targetType = getIndexTypeOfType(target, 1 /* Number */);
+ if (targetType && !(targetType.flags & 1 /* Any */)) {
+ var sourceStringType = getIndexTypeOfType(source, 0 /* String */);
+ var sourceNumberType = getIndexTypeOfType(source, 1 /* Number */);
+ if (!(sourceStringType || sourceNumberType)) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Index_signature_is_missing_in_type_0, typeToString(source));
+ }
+ return 0 /* False */;
+ }
+ var related;
+ if (sourceStringType && sourceNumberType) {
+ // If we know for sure we're testing both string and numeric index types then only report errors from the second one
+ related = isRelatedTo(sourceStringType, targetType, false) || isRelatedTo(sourceNumberType, targetType, reportErrors);
+ }
+ else {
+ related = isRelatedTo(sourceStringType || sourceNumberType, targetType, reportErrors);
+ }
+ if (!related) {
+ if (reportErrors) {
+ reportError(ts.Diagnostics.Index_signatures_are_incompatible);
+ }
+ return 0 /* False */;
+ }
+ return related;
+ }
+ return -1 /* True */;
+ }
+ function indexTypesIdenticalTo(indexKind, source, target) {
+ var targetType = getIndexTypeOfType(target, indexKind);
+ var sourceType = getIndexTypeOfType(source, indexKind);
+ if (!sourceType && !targetType) {
+ return -1 /* True */;
+ }
+ if (sourceType && targetType) {
+ return isRelatedTo(sourceType, targetType);
+ }
+ return 0 /* False */;
+ }
+ }
+ // Return true if the given type is part of a deeply nested chain of generic instantiations. We consider this to be the case
+ // when structural type comparisons have been started for 10 or more instantiations of the same generic type. It is possible,
+ // though highly unlikely, for this test to be true in a situation where a chain of instantiations is not infinitely expanding.
+ // Effectively, we will generate a false positive when two types are structurally equal to at least 10 levels, but unequal at
+ // some level beyond that.
+ function isDeeplyNestedGeneric(type, stack, depth) {
+ // We track type references (created by createTypeReference) and instantiated types (created by instantiateType)
+ if (type.flags & (4096 /* Reference */ | 131072 /* Instantiated */) && depth >= 5) {
+ var symbol = type.symbol;
+ var count = 0;
+ for (var i = 0; i < depth; i++) {
+ var t = stack[i];
+ if (t.flags & (4096 /* Reference */ | 131072 /* Instantiated */) && t.symbol === symbol) {
+ count++;
+ if (count >= 5)
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ function isPropertyIdenticalTo(sourceProp, targetProp) {
+ return compareProperties(sourceProp, targetProp, compareTypes) !== 0 /* False */;
+ }
+ function compareProperties(sourceProp, targetProp, compareTypes) {
+ // Two members are considered identical when
+ // - they are public properties with identical names, optionality, and types,
+ // - they are private or protected properties originating in the same declaration and having identical types
+ if (sourceProp === targetProp) {
+ return -1 /* True */;
+ }
+ var sourcePropAccessibility = getDeclarationFlagsFromSymbol(sourceProp) & (32 /* Private */ | 64 /* Protected */);
+ var targetPropAccessibility = getDeclarationFlagsFromSymbol(targetProp) & (32 /* Private */ | 64 /* Protected */);
+ if (sourcePropAccessibility !== targetPropAccessibility) {
+ return 0 /* False */;
+ }
+ if (sourcePropAccessibility) {
+ if (getTargetSymbol(sourceProp) !== getTargetSymbol(targetProp)) {
+ return 0 /* False */;
+ }
+ }
+ else {
+ if ((sourceProp.flags & 536870912 /* Optional */) !== (targetProp.flags & 536870912 /* Optional */)) {
+ return 0 /* False */;
+ }
+ }
+ return compareTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
+ }
+ function compareSignatures(source, target, partialMatch, ignoreReturnTypes, compareTypes) {
+ if (source === target) {
+ return -1 /* True */;
+ }
+ if (source.parameters.length !== target.parameters.length ||
+ source.minArgumentCount !== target.minArgumentCount ||
+ source.hasRestParameter !== target.hasRestParameter) {
+ if (!partialMatch ||
+ source.parameters.length < target.parameters.length && !source.hasRestParameter ||
+ source.minArgumentCount > target.minArgumentCount) {
+ return 0 /* False */;
+ }
+ }
+ var result = -1 /* True */;
+ if (source.typeParameters && target.typeParameters) {
+ if (source.typeParameters.length !== target.typeParameters.length) {
+ return 0 /* False */;
+ }
+ for (var i = 0, len = source.typeParameters.length; i < len; ++i) {
+ var related = compareTypes(source.typeParameters[i], target.typeParameters[i]);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ }
+ else if (source.typeParameters || target.typeParameters) {
+ return 0 /* False */;
+ }
+ // Spec 1.0 Section 3.8.3 & 3.8.4:
+ // M and N (the signatures) are instantiated using type Any as the type argument for all type parameters declared by M and N
+ source = getErasedSignature(source);
+ target = getErasedSignature(target);
+ var targetLen = target.parameters.length;
+ for (var i = 0; i < targetLen; i++) {
+ var s = isRestParameterIndex(source, i) ? getRestTypeOfSignature(source) : getTypeOfSymbol(source.parameters[i]);
+ var t = isRestParameterIndex(target, i) ? getRestTypeOfSignature(target) : getTypeOfSymbol(target.parameters[i]);
+ var related = compareTypes(s, t);
+ if (!related) {
+ return 0 /* False */;
+ }
+ result &= related;
+ }
+ if (!ignoreReturnTypes) {
+ result &= compareTypes(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
+ }
+ return result;
+ }
+ function isRestParameterIndex(signature, parameterIndex) {
+ return signature.hasRestParameter && parameterIndex >= signature.parameters.length - 1;
+ }
+ function isSupertypeOfEach(candidate, types) {
+ for (var _i = 0; _i < types.length; _i++) {
+ var type = types[_i];
+ if (candidate !== type && !isTypeSubtypeOf(type, candidate))
+ return false;
+ }
+ return true;
+ }
+ function getCommonSupertype(types) {
+ return ts.forEach(types, function (t) { return isSupertypeOfEach(t, types) ? t : undefined; });
+ }
+ function reportNoCommonSupertypeError(types, errorLocation, errorMessageChainHead) {
+ // The downfallType/bestSupertypeDownfallType is the first type that caused a particular candidate
+ // to not be the common supertype. So if it weren't for this one downfallType (and possibly others),
+ // the type in question could have been the common supertype.
+ var bestSupertype;
+ var bestSupertypeDownfallType;
+ var bestSupertypeScore = 0;
+ for (var i = 0; i < types.length; i++) {
+ var score = 0;
+ var downfallType = undefined;
+ for (var j = 0; j < types.length; j++) {
+ if (isTypeSubtypeOf(types[j], types[i])) {
+ score++;
+ }
+ else if (!downfallType) {
+ downfallType = types[j];
+ }
+ }
+ ts.Debug.assert(!!downfallType, "If there is no common supertype, each type should have a downfallType");
+ if (score > bestSupertypeScore) {
+ bestSupertype = types[i];
+ bestSupertypeDownfallType = downfallType;
+ bestSupertypeScore = score;
+ }
+ // types.length - 1 is the maximum score, given that getCommonSupertype returned false
+ if (bestSupertypeScore === types.length - 1) {
+ break;
+ }
+ }
+ // In the following errors, the {1} slot is before the {0} slot because checkTypeSubtypeOf supplies the
+ // subtype as the first argument to the error
+ checkTypeSubtypeOf(bestSupertypeDownfallType, bestSupertype, errorLocation, ts.Diagnostics.Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0, errorMessageChainHead);
+ }
+ function isArrayType(type) {
+ return type.flags & 4096 /* Reference */ && type.target === globalArrayType;
+ }
+ function isArrayLikeType(type) {
+ // A type is array-like if it is not the undefined or null type and if it is assignable to any[]
+ return !(type.flags & (32 /* Undefined */ | 64 /* Null */)) && isTypeAssignableTo(type, anyArrayType);
+ }
+ function isTupleLikeType(type) {
+ return !!getPropertyOfType(type, "0");
+ }
+ /**
+ * Check if a Type was written as a tuple type literal.
+ * Prefer using isTupleLikeType() unless the use of `elementTypes` is required.
+ */
+ function isTupleType(type) {
+ return !!(type.flags & 8192 /* Tuple */);
+ }
+ function getRegularTypeOfObjectLiteral(type) {
+ if (type.flags & 1048576 /* FreshObjectLiteral */) {
+ var regularType = type.regularType;
+ if (!regularType) {
+ regularType = createType(type.flags & ~1048576 /* FreshObjectLiteral */);
+ regularType.symbol = type.symbol;
+ regularType.members = type.members;
+ regularType.properties = type.properties;
+ regularType.callSignatures = type.callSignatures;
+ regularType.constructSignatures = type.constructSignatures;
+ regularType.stringIndexType = type.stringIndexType;
+ regularType.numberIndexType = type.numberIndexType;
+ type.regularType = regularType;
+ }
+ return regularType;
+ }
+ return type;
+ }
+ function getWidenedTypeOfObjectLiteral(type) {
+ var properties = getPropertiesOfObjectType(type);
+ var members = {};
+ ts.forEach(properties, function (p) {
+ var propType = getTypeOfSymbol(p);
+ var widenedType = getWidenedType(propType);
+ if (propType !== widenedType) {
+ var symbol = createSymbol(p.flags | 67108864 /* Transient */, p.name);
+ symbol.declarations = p.declarations;
+ symbol.parent = p.parent;
+ symbol.type = widenedType;
+ symbol.target = p;
+ if (p.valueDeclaration)
+ symbol.valueDeclaration = p.valueDeclaration;
+ p = symbol;
+ }
+ members[p.name] = p;
+ });
+ var stringIndexType = getIndexTypeOfType(type, 0 /* String */);
+ var numberIndexType = getIndexTypeOfType(type, 1 /* Number */);
+ if (stringIndexType)
+ stringIndexType = getWidenedType(stringIndexType);
+ if (numberIndexType)
+ numberIndexType = getWidenedType(numberIndexType);
+ return createAnonymousType(type.symbol, members, emptyArray, emptyArray, stringIndexType, numberIndexType);
+ }
+ function getWidenedType(type) {
+ if (type.flags & 6291456 /* RequiresWidening */) {
+ if (type.flags & (32 /* Undefined */ | 64 /* Null */)) {
+ return anyType;
+ }
+ if (type.flags & 524288 /* ObjectLiteral */) {
+ return getWidenedTypeOfObjectLiteral(type);
+ }
+ if (type.flags & 16384 /* Union */) {
+ return getUnionType(ts.map(type.types, getWidenedType), /*noSubtypeReduction*/ true);
+ }
+ if (isArrayType(type)) {
+ return createArrayType(getWidenedType(type.typeArguments[0]));
+ }
+ if (isTupleType(type)) {
+ return createTupleType(ts.map(type.elementTypes, getWidenedType));
+ }
+ }
+ return type;
+ }
+ /**
+ * Reports implicit any errors that occur as a result of widening 'null' and 'undefined'
+ * to 'any'. A call to reportWideningErrorsInType is normally accompanied by a call to
+ * getWidenedType. But in some cases getWidenedType is called without reporting errors
+ * (type argument inference is an example).
+ *
+ * The return value indicates whether an error was in fact reported. The particular circumstances
+ * are on a best effort basis. Currently, if the null or undefined that causes widening is inside
+ * an object literal property (arbitrarily deeply), this function reports an error. If no error is
+ * reported, reportImplicitAnyError is a suitable fallback to report a general error.
+ */
+ function reportWideningErrorsInType(type) {
+ var errorReported = false;
+ if (type.flags & 16384 /* Union */) {
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var t = _a[_i];
+ if (reportWideningErrorsInType(t)) {
+ errorReported = true;
+ }
+ }
+ }
+ if (isArrayType(type)) {
+ return reportWideningErrorsInType(type.typeArguments[0]);
+ }
+ if (isTupleType(type)) {
+ for (var _b = 0, _c = type.elementTypes; _b < _c.length; _b++) {
+ var t = _c[_b];
+ if (reportWideningErrorsInType(t)) {
+ errorReported = true;
+ }
+ }
+ }
+ if (type.flags & 524288 /* ObjectLiteral */) {
+ for (var _d = 0, _e = getPropertiesOfObjectType(type); _d < _e.length; _d++) {
+ var p = _e[_d];
+ var t = getTypeOfSymbol(p);
+ if (t.flags & 2097152 /* ContainsUndefinedOrNull */) {
+ if (!reportWideningErrorsInType(t)) {
+ error(p.valueDeclaration, ts.Diagnostics.Object_literal_s_property_0_implicitly_has_an_1_type, p.name, typeToString(getWidenedType(t)));
+ }
+ errorReported = true;
+ }
+ }
+ }
+ return errorReported;
+ }
+ function reportImplicitAnyError(declaration, type) {
+ var typeAsString = typeToString(getWidenedType(type));
+ var diagnostic;
+ switch (declaration.kind) {
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ diagnostic = ts.Diagnostics.Member_0_implicitly_has_an_1_type;
+ break;
+ case 138 /* Parameter */:
+ diagnostic = declaration.dotDotDotToken ?
+ ts.Diagnostics.Rest_parameter_0_implicitly_has_an_any_type :
+ ts.Diagnostics.Parameter_0_implicitly_has_an_1_type;
+ break;
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ if (!declaration.name) {
+ error(declaration, ts.Diagnostics.Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type, typeAsString);
+ return;
+ }
+ diagnostic = ts.Diagnostics._0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type;
+ break;
+ default:
+ diagnostic = ts.Diagnostics.Variable_0_implicitly_has_an_1_type;
+ }
+ error(declaration, diagnostic, ts.declarationNameToString(declaration.name), typeAsString);
+ }
+ function reportErrorsFromWidening(declaration, type) {
+ if (produceDiagnostics && compilerOptions.noImplicitAny && type.flags & 2097152 /* ContainsUndefinedOrNull */) {
+ // Report implicit any error within type if possible, otherwise report error on declaration
+ if (!reportWideningErrorsInType(type)) {
+ reportImplicitAnyError(declaration, type);
+ }
+ }
+ }
+ function forEachMatchingParameterType(source, target, callback) {
+ var sourceMax = source.parameters.length;
+ var targetMax = target.parameters.length;
+ var count;
+ if (source.hasRestParameter && target.hasRestParameter) {
+ count = sourceMax > targetMax ? sourceMax : targetMax;
+ sourceMax--;
+ targetMax--;
+ }
+ else if (source.hasRestParameter) {
+ sourceMax--;
+ count = targetMax;
+ }
+ else if (target.hasRestParameter) {
+ targetMax--;
+ count = sourceMax;
+ }
+ else {
+ count = sourceMax < targetMax ? sourceMax : targetMax;
+ }
+ for (var i = 0; i < count; i++) {
+ var s = i < sourceMax ? getTypeOfSymbol(source.parameters[i]) : getRestTypeOfSignature(source);
+ var t = i < targetMax ? getTypeOfSymbol(target.parameters[i]) : getRestTypeOfSignature(target);
+ callback(s, t);
+ }
+ }
+ function createInferenceContext(typeParameters, inferUnionTypes) {
+ var inferences = [];
+ for (var _i = 0; _i < typeParameters.length; _i++) {
+ var unused = typeParameters[_i];
+ inferences.push({
+ primary: undefined, secondary: undefined, isFixed: false
+ });
+ }
+ return {
+ typeParameters: typeParameters,
+ inferUnionTypes: inferUnionTypes,
+ inferences: inferences,
+ inferredTypes: new Array(typeParameters.length)
+ };
+ }
+ function inferTypes(context, source, target) {
+ var sourceStack;
+ var targetStack;
+ var depth = 0;
+ var inferiority = 0;
+ inferFromTypes(source, target);
+ function isInProcess(source, target) {
+ for (var i = 0; i < depth; i++) {
+ if (source === sourceStack[i] && target === targetStack[i]) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function inferFromTypes(source, target) {
+ if (target.flags & 512 /* TypeParameter */) {
+ // If target is a type parameter, make an inference, unless the source type contains
+ // the anyFunctionType (the wildcard type that's used to avoid contextually typing functions).
+ // Because the anyFunctionType is internal, it should not be exposed to the user by adding
+ // it as an inference candidate. Hopefully, a better candidate will come along that does
+ // not contain anyFunctionType when we come back to this argument for its second round
+ // of inference.
+ if (source.flags & 8388608 /* ContainsAnyFunctionType */) {
+ return;
+ }
+ var typeParameters = context.typeParameters;
+ for (var i = 0; i < typeParameters.length; i++) {
+ if (target === typeParameters[i]) {
+ var inferences = context.inferences[i];
+ if (!inferences.isFixed) {
+ // Any inferences that are made to a type parameter in a union type are inferior
+ // to inferences made to a flat (non-union) type. This is because if we infer to
+ // T | string[], we really don't know if we should be inferring to T or not (because
+ // the correct constituent on the target side could be string[]). Therefore, we put
+ // such inferior inferences into a secondary bucket, and only use them if the primary
+ // bucket is empty.
+ var candidates = inferiority ?
+ inferences.secondary || (inferences.secondary = []) :
+ inferences.primary || (inferences.primary = []);
+ if (!ts.contains(candidates, source)) {
+ candidates.push(source);
+ }
+ }
+ return;
+ }
+ }
+ }
+ else if (source.flags & 4096 /* Reference */ && target.flags & 4096 /* Reference */ && source.target === target.target) {
+ // If source and target are references to the same generic type, infer from type arguments
+ var sourceTypes = source.typeArguments || emptyArray;
+ var targetTypes = target.typeArguments || emptyArray;
+ var count = sourceTypes.length < targetTypes.length ? sourceTypes.length : targetTypes.length;
+ for (var i = 0; i < count; i++) {
+ inferFromTypes(sourceTypes[i], targetTypes[i]);
+ }
+ }
+ else if (source.flags & 8192 /* Tuple */ && target.flags & 8192 /* Tuple */ && source.elementTypes.length === target.elementTypes.length) {
+ // If source and target are tuples of the same size, infer from element types
+ var sourceTypes = source.elementTypes;
+ var targetTypes = target.elementTypes;
+ for (var i = 0; i < sourceTypes.length; i++) {
+ inferFromTypes(sourceTypes[i], targetTypes[i]);
+ }
+ }
+ else if (target.flags & 49152 /* UnionOrIntersection */) {
+ var targetTypes = target.types;
+ var typeParameterCount = 0;
+ var typeParameter;
+ // First infer to each type in union or intersection that isn't a type parameter
+ for (var _i = 0; _i < targetTypes.length; _i++) {
+ var t = targetTypes[_i];
+ if (t.flags & 512 /* TypeParameter */ && ts.contains(context.typeParameters, t)) {
+ typeParameter = t;
+ typeParameterCount++;
+ }
+ else {
+ inferFromTypes(source, t);
+ }
+ }
+ // Next, if target is a union type containing a single naked type parameter, make a
+ // secondary inference to that type parameter. We don't do this for intersection types
+ // because in a target type like Foo & T we don't know how which parts of the source type
+ // should be matched by Foo and which should be inferred to T.
+ if (target.flags & 16384 /* Union */ && typeParameterCount === 1) {
+ inferiority++;
+ inferFromTypes(source, typeParameter);
+ inferiority--;
+ }
+ }
+ else if (source.flags & 49152 /* UnionOrIntersection */) {
+ // Source is a union or intersection type, infer from each consituent type
+ var sourceTypes = source.types;
+ for (var _a = 0; _a < sourceTypes.length; _a++) {
+ var sourceType = sourceTypes[_a];
+ inferFromTypes(sourceType, target);
+ }
+ }
+ else {
+ source = getApparentType(source);
+ if (source.flags & 80896 /* ObjectType */ && (target.flags & (4096 /* Reference */ | 8192 /* Tuple */) ||
+ (target.flags & 65536 /* Anonymous */) && target.symbol && target.symbol.flags & (8192 /* Method */ | 2048 /* TypeLiteral */ | 32 /* Class */))) {
+ // If source is an object type, and target is a type reference, a tuple type, the type of a method, or a type literal, infer from members
+ if (isInProcess(source, target)) {
+ return;
+ }
+ if (isDeeplyNestedGeneric(source, sourceStack, depth) && isDeeplyNestedGeneric(target, targetStack, depth)) {
+ return;
+ }
+ if (depth === 0) {
+ sourceStack = [];
+ targetStack = [];
+ }
+ sourceStack[depth] = source;
+ targetStack[depth] = target;
+ depth++;
+ inferFromProperties(source, target);
+ inferFromSignatures(source, target, 0 /* Call */);
+ inferFromSignatures(source, target, 1 /* Construct */);
+ inferFromIndexTypes(source, target, 0 /* String */, 0 /* String */);
+ inferFromIndexTypes(source, target, 1 /* Number */, 1 /* Number */);
+ inferFromIndexTypes(source, target, 0 /* String */, 1 /* Number */);
+ depth--;
+ }
+ }
+ }
+ function inferFromProperties(source, target) {
+ var properties = getPropertiesOfObjectType(target);
+ for (var _i = 0; _i < properties.length; _i++) {
+ var targetProp = properties[_i];
+ var sourceProp = getPropertyOfObjectType(source, targetProp.name);
+ if (sourceProp) {
+ inferFromTypes(getTypeOfSymbol(sourceProp), getTypeOfSymbol(targetProp));
+ }
+ }
+ }
+ function inferFromSignatures(source, target, kind) {
+ var sourceSignatures = getSignaturesOfType(source, kind);
+ var targetSignatures = getSignaturesOfType(target, kind);
+ var sourceLen = sourceSignatures.length;
+ var targetLen = targetSignatures.length;
+ var len = sourceLen < targetLen ? sourceLen : targetLen;
+ for (var i = 0; i < len; i++) {
+ inferFromSignature(getErasedSignature(sourceSignatures[sourceLen - len + i]), getErasedSignature(targetSignatures[targetLen - len + i]));
+ }
+ }
+ function inferFromSignature(source, target) {
+ forEachMatchingParameterType(source, target, inferFromTypes);
+ if (source.typePredicate && target.typePredicate) {
+ if (target.typePredicate.parameterIndex === source.typePredicate.parameterIndex) {
+ // Return types from type predicates are treated as booleans. In order to infer types
+ // from type predicates we would need to infer using the type within the type predicate
+ // (i.e. 'Foo' from 'x is Foo').
+ inferFromTypes(source.typePredicate.type, target.typePredicate.type);
+ }
+ }
+ else {
+ inferFromTypes(getReturnTypeOfSignature(source), getReturnTypeOfSignature(target));
+ }
+ }
+ function inferFromIndexTypes(source, target, sourceKind, targetKind) {
+ var targetIndexType = getIndexTypeOfType(target, targetKind);
+ if (targetIndexType) {
+ var sourceIndexType = getIndexTypeOfType(source, sourceKind);
+ if (sourceIndexType) {
+ inferFromTypes(sourceIndexType, targetIndexType);
+ }
+ }
+ }
+ }
+ function getInferenceCandidates(context, index) {
+ var inferences = context.inferences[index];
+ return inferences.primary || inferences.secondary || emptyArray;
+ }
+ function getInferredType(context, index) {
+ var inferredType = context.inferredTypes[index];
+ var inferenceSucceeded;
+ if (!inferredType) {
+ var inferences = getInferenceCandidates(context, index);
+ if (inferences.length) {
+ // Infer widened union or supertype, or the unknown type for no common supertype
+ var unionOrSuperType = context.inferUnionTypes ? getUnionType(inferences) : getCommonSupertype(inferences);
+ inferredType = unionOrSuperType ? getWidenedType(unionOrSuperType) : unknownType;
+ inferenceSucceeded = !!unionOrSuperType;
+ }
+ else {
+ // Infer the empty object type when no inferences were made. It is important to remember that
+ // in this case, inference still succeeds, meaning there is no error for not having inference
+ // candidates. An inference error only occurs when there are *conflicting* candidates, i.e.
+ // candidates with no common supertype.
+ inferredType = emptyObjectType;
+ inferenceSucceeded = true;
+ }
+ // Only do the constraint check if inference succeeded (to prevent cascading errors)
+ if (inferenceSucceeded) {
+ var constraint = getConstraintOfTypeParameter(context.typeParameters[index]);
+ inferredType = constraint && !isTypeAssignableTo(inferredType, constraint) ? constraint : inferredType;
+ }
+ else if (context.failedTypeParameterIndex === undefined || context.failedTypeParameterIndex > index) {
+ // If inference failed, it is necessary to record the index of the failed type parameter (the one we are on).
+ // It might be that inference has already failed on a later type parameter on a previous call to inferTypeArguments.
+ // So if this failure is on preceding type parameter, this type parameter is the new failure index.
+ context.failedTypeParameterIndex = index;
+ }
+ context.inferredTypes[index] = inferredType;
+ }
+ return inferredType;
+ }
+ function getInferredTypes(context) {
+ for (var i = 0; i < context.inferredTypes.length; i++) {
+ getInferredType(context, i);
+ }
+ return context.inferredTypes;
+ }
+ function hasAncestor(node, kind) {
+ return ts.getAncestor(node, kind) !== undefined;
+ }
+ // EXPRESSION TYPE CHECKING
+ function getResolvedSymbol(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedSymbol) {
+ links.resolvedSymbol = (!ts.nodeIsMissing(node) && resolveName(node, node.text, 107455 /* Value */ | 1048576 /* ExportValue */, ts.Diagnostics.Cannot_find_name_0, node)) || unknownSymbol;
+ }
+ return links.resolvedSymbol;
+ }
+ function isInTypeQuery(node) {
+ // TypeScript 1.0 spec (April 2014): 3.6.3
+ // A type query consists of the keyword typeof followed by an expression.
+ // The expression is restricted to a single identifier or a sequence of identifiers separated by periods
+ while (node) {
+ switch (node.kind) {
+ case 154 /* TypeQuery */:
+ return true;
+ case 69 /* Identifier */:
+ case 135 /* QualifiedName */:
+ node = node.parent;
+ continue;
+ default:
+ return false;
+ }
+ }
+ ts.Debug.fail("should not get here");
+ }
+ // For a union type, remove all constituent types that are of the given type kind (when isOfTypeKind is true)
+ // or not of the given type kind (when isOfTypeKind is false)
+ function removeTypesFromUnionType(type, typeKind, isOfTypeKind, allowEmptyUnionResult) {
+ if (type.flags & 16384 /* Union */) {
+ var types = type.types;
+ if (ts.forEach(types, function (t) { return !!(t.flags & typeKind) === isOfTypeKind; })) {
+ // Above we checked if we have anything to remove, now use the opposite test to do the removal
+ var narrowedType = getUnionType(ts.filter(types, function (t) { return !(t.flags & typeKind) === isOfTypeKind; }));
+ if (allowEmptyUnionResult || narrowedType !== emptyObjectType) {
+ return narrowedType;
+ }
+ }
+ }
+ else if (allowEmptyUnionResult && !!(type.flags & typeKind) === isOfTypeKind) {
+ // Use getUnionType(emptyArray) instead of emptyObjectType in case the way empty union types
+ // are represented ever changes.
+ return getUnionType(emptyArray);
+ }
+ return type;
+ }
+ function hasInitializer(node) {
+ return !!(node.initializer || ts.isBindingPattern(node.parent) && hasInitializer(node.parent.parent));
+ }
+ // Check if a given variable is assigned within a given syntax node
+ function isVariableAssignedWithin(symbol, node) {
+ var links = getNodeLinks(node);
+ if (links.assignmentChecks) {
+ var cachedResult = links.assignmentChecks[symbol.id];
+ if (cachedResult !== undefined) {
+ return cachedResult;
+ }
+ }
+ else {
+ links.assignmentChecks = {};
+ }
+ return links.assignmentChecks[symbol.id] = isAssignedIn(node);
+ function isAssignedInBinaryExpression(node) {
+ if (node.operatorToken.kind >= 56 /* FirstAssignment */ && node.operatorToken.kind <= 68 /* LastAssignment */) {
+ var n = node.left;
+ while (n.kind === 172 /* ParenthesizedExpression */) {
+ n = n.expression;
+ }
+ if (n.kind === 69 /* Identifier */ && getResolvedSymbol(n) === symbol) {
+ return true;
+ }
+ }
+ return ts.forEachChild(node, isAssignedIn);
+ }
+ function isAssignedInVariableDeclaration(node) {
+ if (!ts.isBindingPattern(node.name) && getSymbolOfNode(node) === symbol && hasInitializer(node)) {
+ return true;
+ }
+ return ts.forEachChild(node, isAssignedIn);
+ }
+ function isAssignedIn(node) {
+ switch (node.kind) {
+ case 181 /* BinaryExpression */:
+ return isAssignedInBinaryExpression(node);
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ return isAssignedInVariableDeclaration(node);
+ case 161 /* ObjectBindingPattern */:
+ case 162 /* ArrayBindingPattern */:
+ case 164 /* ArrayLiteralExpression */:
+ case 165 /* ObjectLiteralExpression */:
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 171 /* TypeAssertionExpression */:
+ case 189 /* AsExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 179 /* PrefixUnaryExpression */:
+ case 175 /* DeleteExpression */:
+ case 178 /* AwaitExpression */:
+ case 176 /* TypeOfExpression */:
+ case 177 /* VoidExpression */:
+ case 180 /* PostfixUnaryExpression */:
+ case 184 /* YieldExpression */:
+ case 182 /* ConditionalExpression */:
+ case 185 /* SpreadElementExpression */:
+ case 192 /* Block */:
+ case 193 /* VariableStatement */:
+ case 195 /* ExpressionStatement */:
+ case 196 /* IfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 204 /* ReturnStatement */:
+ case 205 /* WithStatement */:
+ case 206 /* SwitchStatement */:
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ case 207 /* LabeledStatement */:
+ case 208 /* ThrowStatement */:
+ case 209 /* TryStatement */:
+ case 244 /* CatchClause */:
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 238 /* JsxAttribute */:
+ case 239 /* JsxSpreadAttribute */:
+ case 235 /* JsxOpeningElement */:
+ case 240 /* JsxExpression */:
+ return ts.forEachChild(node, isAssignedIn);
+ }
+ return false;
+ }
+ }
+ // Get the narrowed type of a given symbol at a given location
+ function getNarrowedTypeOfSymbol(symbol, node) {
+ var type = getTypeOfSymbol(symbol);
+ // Only narrow when symbol is variable of type any or an object, union, or type parameter type
+ if (node && symbol.flags & 3 /* Variable */) {
+ if (isTypeAny(type) || type.flags & (80896 /* ObjectType */ | 16384 /* Union */ | 512 /* TypeParameter */)) {
+ loop: while (node.parent) {
+ var child = node;
+ node = node.parent;
+ var narrowedType = type;
+ switch (node.kind) {
+ case 196 /* IfStatement */:
+ // In a branch of an if statement, narrow based on controlling expression
+ if (child !== node.expression) {
+ narrowedType = narrowType(type, node.expression, /*assumeTrue*/ child === node.thenStatement);
+ }
+ break;
+ case 182 /* ConditionalExpression */:
+ // In a branch of a conditional expression, narrow based on controlling condition
+ if (child !== node.condition) {
+ narrowedType = narrowType(type, node.condition, /*assumeTrue*/ child === node.whenTrue);
+ }
+ break;
+ case 181 /* BinaryExpression */:
+ // In the right operand of an && or ||, narrow based on left operand
+ if (child === node.right) {
+ if (node.operatorToken.kind === 51 /* AmpersandAmpersandToken */) {
+ narrowedType = narrowType(type, node.left, /*assumeTrue*/ true);
+ }
+ else if (node.operatorToken.kind === 52 /* BarBarToken */) {
+ narrowedType = narrowType(type, node.left, /*assumeTrue*/ false);
+ }
+ }
+ break;
+ case 248 /* SourceFile */:
+ case 218 /* ModuleDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 144 /* Constructor */:
+ // Stop at the first containing function or module declaration
+ break loop;
+ }
+ // Use narrowed type if construct contains no assignments to variable
+ if (narrowedType !== type) {
+ if (isVariableAssignedWithin(symbol, node)) {
+ break;
+ }
+ type = narrowedType;
+ }
+ }
+ }
+ }
+ return type;
+ function narrowTypeByEquality(type, expr, assumeTrue) {
+ // Check that we have 'typeof <symbol>' on the left and string literal on the right
+ if (expr.left.kind !== 176 /* TypeOfExpression */ || expr.right.kind !== 9 /* StringLiteral */) {
+ return type;
+ }
+ var left = expr.left;
+ var right = expr.right;
+ if (left.expression.kind !== 69 /* Identifier */ || getResolvedSymbol(left.expression) !== symbol) {
+ return type;
+ }
+ var typeInfo = primitiveTypeInfo[right.text];
+ if (expr.operatorToken.kind === 33 /* ExclamationEqualsEqualsToken */) {
+ assumeTrue = !assumeTrue;
+ }
+ if (assumeTrue) {
+ // Assumed result is true. If check was not for a primitive type, remove all primitive types
+ if (!typeInfo) {
+ return removeTypesFromUnionType(type, /*typeKind*/ 258 /* StringLike */ | 132 /* NumberLike */ | 8 /* Boolean */ | 16777216 /* ESSymbol */,
+ /*isOfTypeKind*/ true, /*allowEmptyUnionResult*/ false);
+ }
+ // Check was for a primitive type, return that primitive type if it is a subtype
+ if (isTypeSubtypeOf(typeInfo.type, type)) {
+ return typeInfo.type;
+ }
+ // Otherwise, remove all types that aren't of the primitive type kind. This can happen when the type is
+ // union of enum types and other types.
+ return removeTypesFromUnionType(type, /*typeKind*/ typeInfo.flags, /*isOfTypeKind*/ false, /*allowEmptyUnionResult*/ false);
+ }
+ else {
+ // Assumed result is false. If check was for a primitive type, remove that primitive type
+ if (typeInfo) {
+ return removeTypesFromUnionType(type, /*typeKind*/ typeInfo.flags, /*isOfTypeKind*/ true, /*allowEmptyUnionResult*/ false);
+ }
+ // Otherwise we don't have enough information to do anything.
+ return type;
+ }
+ }
+ function narrowTypeByAnd(type, expr, assumeTrue) {
+ if (assumeTrue) {
+ // The assumed result is true, therefore we narrow assuming each operand to be true.
+ return narrowType(narrowType(type, expr.left, /*assumeTrue*/ true), expr.right, /*assumeTrue*/ true);
+ }
+ else {
+ // The assumed result is false. This means either the first operand was false, or the first operand was true
+ // and the second operand was false. We narrow with those assumptions and union the two resulting types.
+ return getUnionType([
+ narrowType(type, expr.left, /*assumeTrue*/ false),
+ narrowType(narrowType(type, expr.left, /*assumeTrue*/ true), expr.right, /*assumeTrue*/ false)
+ ]);
+ }
+ }
+ function narrowTypeByOr(type, expr, assumeTrue) {
+ if (assumeTrue) {
+ // The assumed result is true. This means either the first operand was true, or the first operand was false
+ // and the second operand was true. We narrow with those assumptions and union the two resulting types.
+ return getUnionType([
+ narrowType(type, expr.left, /*assumeTrue*/ true),
+ narrowType(narrowType(type, expr.left, /*assumeTrue*/ false), expr.right, /*assumeTrue*/ true)
+ ]);
+ }
+ else {
+ // The assumed result is false, therefore we narrow assuming each operand to be false.
+ return narrowType(narrowType(type, expr.left, /*assumeTrue*/ false), expr.right, /*assumeTrue*/ false);
+ }
+ }
+ function narrowTypeByInstanceof(type, expr, assumeTrue) {
+ // Check that type is not any, assumed result is true, and we have variable symbol on the left
+ if (isTypeAny(type) || !assumeTrue || expr.left.kind !== 69 /* Identifier */ || getResolvedSymbol(expr.left) !== symbol) {
+ return type;
+ }
+ // Check that right operand is a function type with a prototype property
+ var rightType = checkExpression(expr.right);
+ if (!isTypeSubtypeOf(rightType, globalFunctionType)) {
+ return type;
+ }
+ var targetType;
+ var prototypeProperty = getPropertyOfType(rightType, "prototype");
+ if (prototypeProperty) {
+ // Target type is type of the prototype property
+ var prototypePropertyType = getTypeOfSymbol(prototypeProperty);
+ if (!isTypeAny(prototypePropertyType)) {
+ targetType = prototypePropertyType;
+ }
+ }
+ if (!targetType) {
+ // Target type is type of construct signature
+ var constructSignatures;
+ if (rightType.flags & 2048 /* Interface */) {
+ constructSignatures = resolveDeclaredMembers(rightType).declaredConstructSignatures;
+ }
+ else if (rightType.flags & 65536 /* Anonymous */) {
+ constructSignatures = getSignaturesOfType(rightType, 1 /* Construct */);
+ }
+ if (constructSignatures && constructSignatures.length) {
+ targetType = getUnionType(ts.map(constructSignatures, function (signature) { return getReturnTypeOfSignature(getErasedSignature(signature)); }));
+ }
+ }
+ if (targetType) {
+ return getNarrowedType(type, targetType);
+ }
+ return type;
+ }
+ function getNarrowedType(originalType, narrowedTypeCandidate) {
+ // If the current type is a union type, remove all constituents that aren't assignable to target. If that produces
+ // 0 candidates, fall back to the assignability check
+ if (originalType.flags & 16384 /* Union */) {
+ var assignableConstituents = ts.filter(originalType.types, function (t) { return isTypeAssignableTo(t, narrowedTypeCandidate); });
+ if (assignableConstituents.length) {
+ return getUnionType(assignableConstituents);
+ }
+ }
+ if (isTypeAssignableTo(narrowedTypeCandidate, originalType)) {
+ // Narrow to the target type if it's assignable to the current type
+ return narrowedTypeCandidate;
+ }
+ return originalType;
+ }
+ function narrowTypeByTypePredicate(type, expr, assumeTrue) {
+ if (type.flags & 1 /* Any */) {
+ return type;
+ }
+ var signature = getResolvedSignature(expr);
+ if (signature.typePredicate &&
+ expr.arguments[signature.typePredicate.parameterIndex] &&
+ getSymbolAtLocation(expr.arguments[signature.typePredicate.parameterIndex]) === symbol) {
+ if (!assumeTrue) {
+ if (type.flags & 16384 /* Union */) {
+ return getUnionType(ts.filter(type.types, function (t) { return !isTypeSubtypeOf(t, signature.typePredicate.type); }));
+ }
+ return type;
+ }
+ return getNarrowedType(type, signature.typePredicate.type);
+ }
+ return type;
+ }
+ // Narrow the given type based on the given expression having the assumed boolean value. The returned type
+ // will be a subtype or the same type as the argument.
+ function narrowType(type, expr, assumeTrue) {
+ switch (expr.kind) {
+ case 168 /* CallExpression */:
+ return narrowTypeByTypePredicate(type, expr, assumeTrue);
+ case 172 /* ParenthesizedExpression */:
+ return narrowType(type, expr.expression, assumeTrue);
+ case 181 /* BinaryExpression */:
+ var operator = expr.operatorToken.kind;
+ if (operator === 32 /* EqualsEqualsEqualsToken */ || operator === 33 /* ExclamationEqualsEqualsToken */) {
+ return narrowTypeByEquality(type, expr, assumeTrue);
+ }
+ else if (operator === 51 /* AmpersandAmpersandToken */) {
+ return narrowTypeByAnd(type, expr, assumeTrue);
+ }
+ else if (operator === 52 /* BarBarToken */) {
+ return narrowTypeByOr(type, expr, assumeTrue);
+ }
+ else if (operator === 91 /* InstanceOfKeyword */) {
+ return narrowTypeByInstanceof(type, expr, assumeTrue);
+ }
+ break;
+ case 179 /* PrefixUnaryExpression */:
+ if (expr.operator === 49 /* ExclamationToken */) {
+ return narrowType(type, expr.operand, !assumeTrue);
+ }
+ break;
+ }
+ return type;
+ }
+ }
+ function checkIdentifier(node) {
+ var symbol = getResolvedSymbol(node);
+ // As noted in ECMAScript 6 language spec, arrow functions never have an arguments objects.
+ // Although in down-level emit of arrow function, we emit it using function expression which means that
+ // arguments objects will be bound to the inner object; emitting arrow function natively in ES6, arguments objects
+ // will be bound to non-arrow function that contain this arrow function. This results in inconsistent behavior.
+ // To avoid that we will give an error to users if they use arguments objects in arrow function so that they
+ // can explicitly bound arguments objects
+ if (symbol === argumentsSymbol) {
+ var container = ts.getContainingFunction(node);
+ if (container.kind === 174 /* ArrowFunction */) {
+ if (languageVersion < 2 /* ES6 */) {
+ error(node, ts.Diagnostics.The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression);
+ }
+ }
+ if (node.parserContextFlags & 8 /* Await */) {
+ getNodeLinks(container).flags |= 4096 /* CaptureArguments */;
+ getNodeLinks(node).flags |= 2048 /* LexicalArguments */;
+ }
+ }
+ if (symbol.flags & 8388608 /* Alias */ && !isInTypeQuery(node) && !isConstEnumOrConstEnumOnlyModule(resolveAlias(symbol))) {
+ markAliasSymbolAsReferenced(symbol);
+ }
+ checkCollisionWithCapturedSuperVariable(node, node);
+ checkCollisionWithCapturedThisVariable(node, node);
+ checkBlockScopedBindingCapturedInLoop(node, symbol);
+ return getNarrowedTypeOfSymbol(getExportSymbolOfValueSymbolIfExported(symbol), node);
+ }
+ function isInsideFunction(node, threshold) {
+ var current = node;
+ while (current && current !== threshold) {
+ if (ts.isFunctionLike(current)) {
+ return true;
+ }
+ current = current.parent;
+ }
+ return false;
+ }
+ function checkBlockScopedBindingCapturedInLoop(node, symbol) {
+ if (languageVersion >= 2 /* ES6 */ ||
+ (symbol.flags & 2 /* BlockScopedVariable */) === 0 ||
+ symbol.valueDeclaration.parent.kind === 244 /* CatchClause */) {
+ return;
+ }
+ // - check if binding is used in some function
+ // (stop the walk when reaching container of binding declaration)
+ // - if first check succeeded - check if variable is declared inside the loop
+ // nesting structure:
+ // (variable declaration or binding element) -> variable declaration list -> container
+ var container = symbol.valueDeclaration;
+ while (container.kind !== 212 /* VariableDeclarationList */) {
+ container = container.parent;
+ }
+ // get the parent of variable declaration list
+ container = container.parent;
+ if (container.kind === 193 /* VariableStatement */) {
+ // if parent is variable statement - get its parent
+ container = container.parent;
+ }
+ var inFunction = isInsideFunction(node.parent, container);
+ var current = container;
+ while (current && !ts.nodeStartsNewLexicalEnvironment(current)) {
+ if (isIterationStatement(current, /*lookInLabeledStatements*/ false)) {
+ if (inFunction) {
+ grammarErrorOnFirstToken(current, ts.Diagnostics.Loop_contains_block_scoped_variable_0_referenced_by_a_function_in_the_loop_This_is_only_supported_in_ECMAScript_6_or_higher, ts.declarationNameToString(node));
+ }
+ // mark value declaration so during emit they can have a special handling
+ getNodeLinks(symbol.valueDeclaration).flags |= 16384 /* BlockScopedBindingInLoop */;
+ break;
+ }
+ current = current.parent;
+ }
+ }
+ function captureLexicalThis(node, container) {
+ getNodeLinks(node).flags |= 2 /* LexicalThis */;
+ if (container.kind === 141 /* PropertyDeclaration */ || container.kind === 144 /* Constructor */) {
+ var classNode = container.parent;
+ getNodeLinks(classNode).flags |= 4 /* CaptureThis */;
+ }
+ else {
+ getNodeLinks(container).flags |= 4 /* CaptureThis */;
+ }
+ }
+ function checkThisExpression(node) {
+ // Stop at the first arrow function so that we can
+ // tell whether 'this' needs to be captured.
+ var container = ts.getThisContainer(node, /* includeArrowFunctions */ true);
+ var needToCaptureLexicalThis = false;
+ // Now skip arrow functions to get the "real" owner of 'this'.
+ if (container.kind === 174 /* ArrowFunction */) {
+ container = ts.getThisContainer(container, /* includeArrowFunctions */ false);
+ // When targeting es6, arrow function lexically bind "this" so we do not need to do the work of binding "this" in emitted code
+ needToCaptureLexicalThis = (languageVersion < 2 /* ES6 */);
+ }
+ switch (container.kind) {
+ case 218 /* ModuleDeclaration */:
+ error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_module_or_namespace_body);
+ // do not return here so in case if lexical this is captured - it will be reflected in flags on NodeLinks
+ break;
+ case 217 /* EnumDeclaration */:
+ error(node, ts.Diagnostics.this_cannot_be_referenced_in_current_location);
+ // do not return here so in case if lexical this is captured - it will be reflected in flags on NodeLinks
+ break;
+ case 144 /* Constructor */:
+ if (isInConstructorArgumentInitializer(node, container)) {
+ error(node, ts.Diagnostics.this_cannot_be_referenced_in_constructor_arguments);
+ }
+ break;
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ if (container.flags & 128 /* Static */) {
+ error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_static_property_initializer);
+ }
+ break;
+ case 136 /* ComputedPropertyName */:
+ error(node, ts.Diagnostics.this_cannot_be_referenced_in_a_computed_property_name);
+ break;
+ }
+ if (needToCaptureLexicalThis) {
+ captureLexicalThis(node, container);
+ }
+ if (ts.isClassLike(container.parent)) {
+ var symbol = getSymbolOfNode(container.parent);
+ return container.flags & 128 /* Static */ ? getTypeOfSymbol(symbol) : getDeclaredTypeOfSymbol(symbol).thisType;
+ }
+ return anyType;
+ }
+ function isInConstructorArgumentInitializer(node, constructorDecl) {
+ for (var n = node; n && n !== constructorDecl; n = n.parent) {
+ if (n.kind === 138 /* Parameter */) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function checkSuperExpression(node) {
+ var isCallExpression = node.parent.kind === 168 /* CallExpression */ && node.parent.expression === node;
+ var classDeclaration = ts.getContainingClass(node);
+ var classType = classDeclaration && getDeclaredTypeOfSymbol(getSymbolOfNode(classDeclaration));
+ var baseClassType = classType && getBaseTypes(classType)[0];
+ var container = ts.getSuperContainer(node, /*includeFunctions*/ true);
+ var needToCaptureLexicalThis = false;
+ if (!isCallExpression) {
+ // adjust the container reference in case if super is used inside arrow functions with arbitrary deep nesting
+ while (container && container.kind === 174 /* ArrowFunction */) {
+ container = ts.getSuperContainer(container, /*includeFunctions*/ true);
+ needToCaptureLexicalThis = languageVersion < 2 /* ES6 */;
+ }
+ }
+ var canUseSuperExpression = isLegalUsageOfSuperExpression(container);
+ var nodeCheckFlag = 0;
+ // always set NodeCheckFlags for 'super' expression node
+ if (canUseSuperExpression) {
+ if ((container.flags & 128 /* Static */) || isCallExpression) {
+ nodeCheckFlag = 512 /* SuperStatic */;
+ }
+ else {
+ nodeCheckFlag = 256 /* SuperInstance */;
+ }
+ getNodeLinks(node).flags |= nodeCheckFlag;
+ if (needToCaptureLexicalThis) {
+ // call expressions are allowed only in constructors so they should always capture correct 'this'
+ // super property access expressions can also appear in arrow functions -
+ // in this case they should also use correct lexical this
+ captureLexicalThis(node.parent, container);
+ }
+ }
+ if (!baseClassType) {
+ if (!classDeclaration || !ts.getClassExtendsHeritageClauseElement(classDeclaration)) {
+ error(node, ts.Diagnostics.super_can_only_be_referenced_in_a_derived_class);
+ }
+ return unknownType;
+ }
+ if (!canUseSuperExpression) {
+ if (container && container.kind === 136 /* ComputedPropertyName */) {
+ error(node, ts.Diagnostics.super_cannot_be_referenced_in_a_computed_property_name);
+ }
+ else if (isCallExpression) {
+ error(node, ts.Diagnostics.Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors);
+ }
+ else {
+ error(node, ts.Diagnostics.super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class);
+ }
+ return unknownType;
+ }
+ if (container.kind === 144 /* Constructor */ && isInConstructorArgumentInitializer(node, container)) {
+ // issue custom error message for super property access in constructor arguments (to be aligned with old compiler)
+ error(node, ts.Diagnostics.super_cannot_be_referenced_in_constructor_arguments);
+ return unknownType;
+ }
+ return nodeCheckFlag === 512 /* SuperStatic */
+ ? getBaseConstructorTypeOfClass(classType)
+ : baseClassType;
+ function isLegalUsageOfSuperExpression(container) {
+ if (!container) {
+ return false;
+ }
+ if (isCallExpression) {
+ // TS 1.0 SPEC (April 2014): 4.8.1
+ // Super calls are only permitted in constructors of derived classes
+ return container.kind === 144 /* Constructor */;
+ }
+ else {
+ // TS 1.0 SPEC (April 2014)
+ // 'super' property access is allowed
+ // - In a constructor, instance member function, instance member accessor, or instance member variable initializer where this references a derived class instance
+ // - In a static member function or static member accessor
+ // topmost container must be something that is directly nested in the class declaration
+ if (container && ts.isClassLike(container.parent)) {
+ if (container.flags & 128 /* Static */) {
+ return container.kind === 143 /* MethodDeclaration */ ||
+ container.kind === 142 /* MethodSignature */ ||
+ container.kind === 145 /* GetAccessor */ ||
+ container.kind === 146 /* SetAccessor */;
+ }
+ else {
+ return container.kind === 143 /* MethodDeclaration */ ||
+ container.kind === 142 /* MethodSignature */ ||
+ container.kind === 145 /* GetAccessor */ ||
+ container.kind === 146 /* SetAccessor */ ||
+ container.kind === 141 /* PropertyDeclaration */ ||
+ container.kind === 140 /* PropertySignature */ ||
+ container.kind === 144 /* Constructor */;
+ }
+ }
+ }
+ return false;
+ }
+ }
+ // Return contextual type of parameter or undefined if no contextual type is available
+ function getContextuallyTypedParameterType(parameter) {
+ var func = parameter.parent;
+ if (isFunctionExpressionOrArrowFunction(func) || ts.isObjectLiteralMethod(func)) {
+ if (isContextSensitive(func)) {
+ var contextualSignature = getContextualSignature(func);
+ if (contextualSignature) {
+ var funcHasRestParameters = ts.hasRestParameter(func);
+ var len = func.parameters.length - (funcHasRestParameters ? 1 : 0);
+ var indexOfParameter = ts.indexOf(func.parameters, parameter);
+ if (indexOfParameter < len) {
+ return getTypeAtPosition(contextualSignature, indexOfParameter);
+ }
+ // If last parameter is contextually rest parameter get its type
+ if (funcHasRestParameters &&
+ indexOfParameter === (func.parameters.length - 1) &&
+ isRestParameterIndex(contextualSignature, func.parameters.length - 1)) {
+ return getTypeOfSymbol(ts.lastOrUndefined(contextualSignature.parameters));
+ }
+ }
+ }
+ }
+ return undefined;
+ }
+ // In a variable, parameter or property declaration with a type annotation, the contextual type of an initializer
+ // expression is the type of the variable, parameter or property. Otherwise, in a parameter declaration of a
+ // contextually typed function expression, the contextual type of an initializer expression is the contextual type
+ // of the parameter. Otherwise, in a variable or parameter declaration with a binding pattern name, the contextual
+ // type of an initializer expression is the type implied by the binding pattern.
+ function getContextualTypeForInitializerExpression(node) {
+ var declaration = node.parent;
+ if (node === declaration.initializer) {
+ if (declaration.type) {
+ return getTypeFromTypeNode(declaration.type);
+ }
+ if (declaration.kind === 138 /* Parameter */) {
+ var type = getContextuallyTypedParameterType(declaration);
+ if (type) {
+ return type;
+ }
+ }
+ if (ts.isBindingPattern(declaration.name)) {
+ return getTypeFromBindingPattern(declaration.name, /*includePatternInType*/ true);
+ }
+ }
+ return undefined;
+ }
+ function getContextualTypeForReturnExpression(node) {
+ var func = ts.getContainingFunction(node);
+ if (func && !func.asteriskToken) {
+ return getContextualReturnType(func);
+ }
+ return undefined;
+ }
+ function getContextualTypeForYieldOperand(node) {
+ var func = ts.getContainingFunction(node);
+ if (func) {
+ var contextualReturnType = getContextualReturnType(func);
+ if (contextualReturnType) {
+ return node.asteriskToken
+ ? contextualReturnType
+ : getElementTypeOfIterableIterator(contextualReturnType);
+ }
+ }
+ return undefined;
+ }
+ function isInParameterInitializerBeforeContainingFunction(node) {
+ while (node.parent && !ts.isFunctionLike(node.parent)) {
+ if (node.parent.kind === 138 /* Parameter */ && node.parent.initializer === node) {
+ return true;
+ }
+ node = node.parent;
+ }
+ return false;
+ }
+ function getContextualReturnType(functionDecl) {
+ // If the containing function has a return type annotation, is a constructor, or is a get accessor whose
+ // corresponding set accessor has a type annotation, return statements in the function are contextually typed
+ if (functionDecl.type ||
+ functionDecl.kind === 144 /* Constructor */ ||
+ functionDecl.kind === 145 /* GetAccessor */ && ts.getSetAccessorTypeAnnotationNode(ts.getDeclarationOfKind(functionDecl.symbol, 146 /* SetAccessor */))) {
+ return getReturnTypeOfSignature(getSignatureFromDeclaration(functionDecl));
+ }
+ // Otherwise, if the containing function is contextually typed by a function type with exactly one call signature
+ // and that call signature is non-generic, return statements are contextually typed by the return type of the signature
+ var signature = getContextualSignatureForFunctionLikeDeclaration(functionDecl);
+ if (signature) {
+ return getReturnTypeOfSignature(signature);
+ }
+ return undefined;
+ }
+ // In a typed function call, an argument or substitution expression is contextually typed by the type of the corresponding parameter.
+ function getContextualTypeForArgument(callTarget, arg) {
+ var args = getEffectiveCallArguments(callTarget);
+ var argIndex = ts.indexOf(args, arg);
+ if (argIndex >= 0) {
+ var signature = getResolvedSignature(callTarget);
+ return getTypeAtPosition(signature, argIndex);
+ }
+ return undefined;
+ }
+ function getContextualTypeForSubstitutionExpression(template, substitutionExpression) {
+ if (template.parent.kind === 170 /* TaggedTemplateExpression */) {
+ return getContextualTypeForArgument(template.parent, substitutionExpression);
+ }
+ return undefined;
+ }
+ function getContextualTypeForBinaryOperand(node) {
+ var binaryExpression = node.parent;
+ var operator = binaryExpression.operatorToken.kind;
+ if (operator >= 56 /* FirstAssignment */ && operator <= 68 /* LastAssignment */) {
+ // In an assignment expression, the right operand is contextually typed by the type of the left operand.
+ if (node === binaryExpression.right) {
+ return checkExpression(binaryExpression.left);
+ }
+ }
+ else if (operator === 52 /* BarBarToken */) {
+ // When an || expression has a contextual type, the operands are contextually typed by that type. When an ||
+ // expression has no contextual type, the right operand is contextually typed by the type of the left operand.
+ var type = getContextualType(binaryExpression);
+ if (!type && node === binaryExpression.right) {
+ type = checkExpression(binaryExpression.left);
+ }
+ return type;
+ }
+ return undefined;
+ }
+ // Apply a mapping function to a contextual type and return the resulting type. If the contextual type
+ // is a union type, the mapping function is applied to each constituent type and a union of the resulting
+ // types is returned.
+ function applyToContextualType(type, mapper) {
+ if (!(type.flags & 16384 /* Union */)) {
+ return mapper(type);
+ }
+ var types = type.types;
+ var mappedType;
+ var mappedTypes;
+ for (var _i = 0; _i < types.length; _i++) {
+ var current = types[_i];
+ var t = mapper(current);
+ if (t) {
+ if (!mappedType) {
+ mappedType = t;
+ }
+ else if (!mappedTypes) {
+ mappedTypes = [mappedType, t];
+ }
+ else {
+ mappedTypes.push(t);
+ }
+ }
+ }
+ return mappedTypes ? getUnionType(mappedTypes) : mappedType;
+ }
+ function getTypeOfPropertyOfContextualType(type, name) {
+ return applyToContextualType(type, function (t) {
+ var prop = t.flags & 130048 /* StructuredType */ ? getPropertyOfType(t, name) : undefined;
+ return prop ? getTypeOfSymbol(prop) : undefined;
+ });
+ }
+ function getIndexTypeOfContextualType(type, kind) {
+ return applyToContextualType(type, function (t) { return getIndexTypeOfStructuredType(t, kind); });
+ }
+ // Return true if the given contextual type is a tuple-like type
+ function contextualTypeIsTupleLikeType(type) {
+ return !!(type.flags & 16384 /* Union */ ? ts.forEach(type.types, isTupleLikeType) : isTupleLikeType(type));
+ }
+ // Return true if the given contextual type provides an index signature of the given kind
+ function contextualTypeHasIndexSignature(type, kind) {
+ return !!(type.flags & 16384 /* Union */ ? ts.forEach(type.types, function (t) { return getIndexTypeOfStructuredType(t, kind); }) : getIndexTypeOfStructuredType(type, kind));
+ }
+ // In an object literal contextually typed by a type T, the contextual type of a property assignment is the type of
+ // the matching property in T, if one exists. Otherwise, it is the type of the numeric index signature in T, if one
+ // exists. Otherwise, it is the type of the string index signature in T, if one exists.
+ function getContextualTypeForObjectLiteralMethod(node) {
+ ts.Debug.assert(ts.isObjectLiteralMethod(node));
+ if (isInsideWithStatementBody(node)) {
+ // We cannot answer semantic questions within a with block, do not proceed any further
+ return undefined;
+ }
+ return getContextualTypeForObjectLiteralElement(node);
+ }
+ function getContextualTypeForObjectLiteralElement(element) {
+ var objectLiteral = element.parent;
+ var type = getContextualType(objectLiteral);
+ if (type) {
+ if (!ts.hasDynamicName(element)) {
+ // For a (non-symbol) computed property, there is no reason to look up the name
+ // in the type. It will just be "__computed", which does not appear in any
+ // SymbolTable.
+ var symbolName = getSymbolOfNode(element).name;
+ var propertyType = getTypeOfPropertyOfContextualType(type, symbolName);
+ if (propertyType) {
+ return propertyType;
+ }
+ }
+ return isNumericName(element.name) && getIndexTypeOfContextualType(type, 1 /* Number */) ||
+ getIndexTypeOfContextualType(type, 0 /* String */);
+ }
+ return undefined;
+ }
+ // In an array literal contextually typed by a type T, the contextual type of an element expression at index N is
+ // the type of the property with the numeric name N in T, if one exists. Otherwise, if T has a numeric index signature,
+ // it is the type of the numeric index signature in T. Otherwise, in ES6 and higher, the contextual type is the iterated
+ // type of T.
+ function getContextualTypeForElementExpression(node) {
+ var arrayLiteral = node.parent;
+ var type = getContextualType(arrayLiteral);
+ if (type) {
+ var index = ts.indexOf(arrayLiteral.elements, node);
+ return getTypeOfPropertyOfContextualType(type, "" + index)
+ || getIndexTypeOfContextualType(type, 1 /* Number */)
+ || (languageVersion >= 2 /* ES6 */ ? getElementTypeOfIterable(type, /*errorNode*/ undefined) : undefined);
+ }
+ return undefined;
+ }
+ // In a contextually typed conditional expression, the true/false expressions are contextually typed by the same type.
+ function getContextualTypeForConditionalOperand(node) {
+ var conditional = node.parent;
+ return node === conditional.whenTrue || node === conditional.whenFalse ? getContextualType(conditional) : undefined;
+ }
+ function getContextualTypeForJsxExpression(expr) {
+ // Contextual type only applies to JSX expressions that are in attribute assignments (not in 'Children' positions)
+ if (expr.parent.kind === 238 /* JsxAttribute */) {
+ var attrib = expr.parent;
+ var attrsType = getJsxElementAttributesType(attrib.parent);
+ if (!attrsType || isTypeAny(attrsType)) {
+ return undefined;
+ }
+ else {
+ return getTypeOfPropertyOfType(attrsType, attrib.name.text);
+ }
+ }
+ if (expr.kind === 239 /* JsxSpreadAttribute */) {
+ return getJsxElementAttributesType(expr.parent);
+ }
+ return undefined;
+ }
+ // Return the contextual type for a given expression node. During overload resolution, a contextual type may temporarily
+ // be "pushed" onto a node using the contextualType property.
+ function getContextualType(node) {
+ var type = getContextualTypeWorker(node);
+ return type && getApparentType(type);
+ }
+ function getContextualTypeWorker(node) {
+ if (isInsideWithStatementBody(node)) {
+ // We cannot answer semantic questions within a with block, do not proceed any further
+ return undefined;
+ }
+ if (node.contextualType) {
+ return node.contextualType;
+ }
+ var parent = node.parent;
+ switch (parent.kind) {
+ case 211 /* VariableDeclaration */:
+ case 138 /* Parameter */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 163 /* BindingElement */:
+ return getContextualTypeForInitializerExpression(node);
+ case 174 /* ArrowFunction */:
+ case 204 /* ReturnStatement */:
+ return getContextualTypeForReturnExpression(node);
+ case 184 /* YieldExpression */:
+ return getContextualTypeForYieldOperand(parent);
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ return getContextualTypeForArgument(parent, node);
+ case 171 /* TypeAssertionExpression */:
+ case 189 /* AsExpression */:
+ return getTypeFromTypeNode(parent.type);
+ case 181 /* BinaryExpression */:
+ return getContextualTypeForBinaryOperand(node);
+ case 245 /* PropertyAssignment */:
+ return getContextualTypeForObjectLiteralElement(parent);
+ case 164 /* ArrayLiteralExpression */:
+ return getContextualTypeForElementExpression(node);
+ case 182 /* ConditionalExpression */:
+ return getContextualTypeForConditionalOperand(node);
+ case 190 /* TemplateSpan */:
+ ts.Debug.assert(parent.parent.kind === 183 /* TemplateExpression */);
+ return getContextualTypeForSubstitutionExpression(parent.parent, node);
+ case 172 /* ParenthesizedExpression */:
+ return getContextualType(parent);
+ case 240 /* JsxExpression */:
+ case 239 /* JsxSpreadAttribute */:
+ return getContextualTypeForJsxExpression(parent);
+ }
+ return undefined;
+ }
+ // If the given type is an object or union type, if that type has a single signature, and if
+ // that signature is non-generic, return the signature. Otherwise return undefined.
+ function getNonGenericSignature(type) {
+ var signatures = getSignaturesOfStructuredType(type, 0 /* Call */);
+ if (signatures.length === 1) {
+ var signature = signatures[0];
+ if (!signature.typeParameters) {
+ return signature;
+ }
+ }
+ }
+ function isFunctionExpressionOrArrowFunction(node) {
+ return node.kind === 173 /* FunctionExpression */ || node.kind === 174 /* ArrowFunction */;
+ }
+ function getContextualSignatureForFunctionLikeDeclaration(node) {
+ // Only function expressions, arrow functions, and object literal methods are contextually typed.
+ return isFunctionExpressionOrArrowFunction(node) || ts.isObjectLiteralMethod(node)
+ ? getContextualSignature(node)
+ : undefined;
+ }
+ // Return the contextual signature for a given expression node. A contextual type provides a
+ // contextual signature if it has a single call signature and if that call signature is non-generic.
+ // If the contextual type is a union type, get the signature from each type possible and if they are
+ // all identical ignoring their return type, the result is same signature but with return type as
+ // union type of return types from these signatures
+ function getContextualSignature(node) {
+ ts.Debug.assert(node.kind !== 143 /* MethodDeclaration */ || ts.isObjectLiteralMethod(node));
+ var type = ts.isObjectLiteralMethod(node)
+ ? getContextualTypeForObjectLiteralMethod(node)
+ : getContextualType(node);
+ if (!type) {
+ return undefined;
+ }
+ if (!(type.flags & 16384 /* Union */)) {
+ return getNonGenericSignature(type);
+ }
+ var signatureList;
+ var types = type.types;
+ for (var _i = 0; _i < types.length; _i++) {
+ var current = types[_i];
+ var signature = getNonGenericSignature(current);
+ if (signature) {
+ if (!signatureList) {
+ // This signature will contribute to contextual union signature
+ signatureList = [signature];
+ }
+ else if (!compareSignatures(signatureList[0], signature, /*partialMatch*/ false, /*ignoreReturnTypes*/ true, compareTypes)) {
+ // Signatures aren't identical, do not use
+ return undefined;
+ }
+ else {
+ // Use this signature for contextual union signature
+ signatureList.push(signature);
+ }
+ }
+ }
+ // Result is union of signatures collected (return type is union of return types of this signature set)
+ var result;
+ if (signatureList) {
+ result = cloneSignature(signatureList[0]);
+ // Clear resolved return type we possibly got from cloneSignature
+ result.resolvedReturnType = undefined;
+ result.unionSignatures = signatureList;
+ }
+ return result;
+ }
+ /**
+ * Detect if the mapper implies an inference context. Specifically, there are 4 possible values
+ * for a mapper. Let's go through each one of them:
+ *
+ * 1. undefined - this means we are not doing inferential typing, but we may do contextual typing,
+ * which could cause us to assign a parameter a type
+ * 2. identityMapper - means we want to avoid assigning a parameter a type, whether or not we are in
+ * inferential typing (context is undefined for the identityMapper)
+ * 3. a mapper created by createInferenceMapper - we are doing inferential typing, we want to assign
+ * types to parameters and fix type parameters (context is defined)
+ * 4. an instantiation mapper created by createTypeMapper or createTypeEraser - this should never be
+ * passed as the contextual mapper when checking an expression (context is undefined for these)
+ *
+ * isInferentialContext is detecting if we are in case 3
+ */
+ function isInferentialContext(mapper) {
+ return mapper && mapper.context;
+ }
+ // A node is an assignment target if it is on the left hand side of an '=' token, if it is parented by a property
+ // assignment in an object literal that is an assignment target, or if it is parented by an array literal that is
+ // an assignment target. Examples include 'a = xxx', '{ p: a } = xxx', '[{ p: a}] = xxx'.
+ function isAssignmentTarget(node) {
+ var parent = node.parent;
+ if (parent.kind === 181 /* BinaryExpression */ && parent.operatorToken.kind === 56 /* EqualsToken */ && parent.left === node) {
+ return true;
+ }
+ if (parent.kind === 245 /* PropertyAssignment */) {
+ return isAssignmentTarget(parent.parent);
+ }
+ if (parent.kind === 164 /* ArrayLiteralExpression */) {
+ return isAssignmentTarget(parent);
+ }
+ return false;
+ }
+ function checkSpreadElementExpression(node, contextualMapper) {
+ // It is usually not safe to call checkExpressionCached if we can be contextually typing.
+ // You can tell that we are contextually typing because of the contextualMapper parameter.
+ // While it is true that a spread element can have a contextual type, it does not do anything
+ // with this type. It is neither affected by it, nor does it propagate it to its operand.
+ // So the fact that contextualMapper is passed is not important, because the operand of a spread
+ // element is not contextually typed.
+ var arrayOrIterableType = checkExpressionCached(node.expression, contextualMapper);
+ return checkIteratedTypeOrElementType(arrayOrIterableType, node.expression, /*allowStringInput*/ false);
+ }
+ function hasDefaultValue(node) {
+ return (node.kind === 163 /* BindingElement */ && !!node.initializer) ||
+ (node.kind === 181 /* BinaryExpression */ && node.operatorToken.kind === 56 /* EqualsToken */);
+ }
+ function checkArrayLiteral(node, contextualMapper) {
+ var elements = node.elements;
+ var hasSpreadElement = false;
+ var elementTypes = [];
+ var inDestructuringPattern = isAssignmentTarget(node);
+ for (var _i = 0; _i < elements.length; _i++) {
+ var e = elements[_i];
+ if (inDestructuringPattern && e.kind === 185 /* SpreadElementExpression */) {
+ // Given the following situation:
+ // var c: {};
+ // [...c] = ["", 0];
+ //
+ // c is represented in the tree as a spread element in an array literal.
+ // But c really functions as a rest element, and its purpose is to provide
+ // a contextual type for the right hand side of the assignment. Therefore,
+ // instead of calling checkExpression on "...c", which will give an error
+ // if c is not iterable/array-like, we need to act as if we are trying to
+ // get the contextual element type from it. So we do something similar to
+ // getContextualTypeForElementExpression, which will crucially not error
+ // if there is no index type / iterated type.
+ var restArrayType = checkExpression(e.expression, contextualMapper);
+ var restElementType = getIndexTypeOfType(restArrayType, 1 /* Number */) ||
+ (languageVersion >= 2 /* ES6 */ ? getElementTypeOfIterable(restArrayType, /*errorNode*/ undefined) : undefined);
+ if (restElementType) {
+ elementTypes.push(restElementType);
+ }
+ }
+ else {
+ var type = checkExpression(e, contextualMapper);
+ elementTypes.push(type);
+ }
+ hasSpreadElement = hasSpreadElement || e.kind === 185 /* SpreadElementExpression */;
+ }
+ if (!hasSpreadElement) {
+ // If array literal is actually a destructuring pattern, mark it as an implied type. We do this such
+ // that we get the same behavior for "var [x, y] = []" and "[x, y] = []".
+ if (inDestructuringPattern && elementTypes.length) {
+ var type = createNewTupleType(elementTypes);
+ type.pattern = node;
+ return type;
+ }
+ var contextualType = getContextualType(node);
+ if (contextualType && contextualTypeIsTupleLikeType(contextualType)) {
+ var pattern = contextualType.pattern;
+ // If array literal is contextually typed by a binding pattern or an assignment pattern, pad the resulting
+ // tuple type with the corresponding binding or assignment element types to make the lengths equal.
+ if (pattern && (pattern.kind === 162 /* ArrayBindingPattern */ || pattern.kind === 164 /* ArrayLiteralExpression */)) {
+ var patternElements = pattern.elements;
+ for (var i = elementTypes.length; i < patternElements.length; i++) {
+ var patternElement = patternElements[i];
+ if (hasDefaultValue(patternElement)) {
+ elementTypes.push(contextualType.elementTypes[i]);
+ }
+ else {
+ if (patternElement.kind !== 187 /* OmittedExpression */) {
+ error(patternElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
+ }
+ elementTypes.push(unknownType);
+ }
+ }
+ }
+ if (elementTypes.length) {
+ return createTupleType(elementTypes);
+ }
+ }
+ }
+ return createArrayType(elementTypes.length ? getUnionType(elementTypes) : undefinedType);
+ }
+ function isNumericName(name) {
+ return name.kind === 136 /* ComputedPropertyName */ ? isNumericComputedName(name) : isNumericLiteralName(name.text);
+ }
+ function isNumericComputedName(name) {
+ // It seems odd to consider an expression of type Any to result in a numeric name,
+ // but this behavior is consistent with checkIndexedAccess
+ return isTypeAnyOrAllConstituentTypesHaveKind(checkComputedPropertyName(name), 132 /* NumberLike */);
+ }
+ function isTypeAnyOrAllConstituentTypesHaveKind(type, kind) {
+ return isTypeAny(type) || allConstituentTypesHaveKind(type, kind);
+ }
+ function isNumericLiteralName(name) {
+ // The intent of numeric names is that
+ // - they are names with text in a numeric form, and that
+ // - setting properties/indexing with them is always equivalent to doing so with the numeric literal 'numLit',
+ // acquired by applying the abstract 'ToNumber' operation on the name's text.
+ //
+ // The subtlety is in the latter portion, as we cannot reliably say that anything that looks like a numeric literal is a numeric name.
+ // In fact, it is the case that the text of the name must be equal to 'ToString(numLit)' for this to hold.
+ //
+ // Consider the property name '"0xF00D"'. When one indexes with '0xF00D', they are actually indexing with the value of 'ToString(0xF00D)'
+ // according to the ECMAScript specification, so it is actually as if the user indexed with the string '"61453"'.
+ // Thus, the text of all numeric literals equivalent to '61543' such as '0xF00D', '0xf00D', '0170015', etc. are not valid numeric names
+ // because their 'ToString' representation is not equal to their original text.
+ // This is motivated by ECMA-262 sections 9.3.1, 9.8.1, 11.1.5, and 11.2.1.
+ //
+ // Here, we test whether 'ToString(ToNumber(name))' is exactly equal to 'name'.
+ // The '+' prefix operator is equivalent here to applying the abstract ToNumber operation.
+ // Applying the 'toString()' method on a number gives us the abstract ToString operation on a number.
+ //
+ // Note that this accepts the values 'Infinity', '-Infinity', and 'NaN', and that this is intentional.
+ // This is desired behavior, because when indexing with them as numeric entities, you are indexing
+ // with the strings '"Infinity"', '"-Infinity"', and '"NaN"' respectively.
+ return (+name).toString() === name;
+ }
+ function checkComputedPropertyName(node) {
+ var links = getNodeLinks(node.expression);
+ if (!links.resolvedType) {
+ links.resolvedType = checkExpression(node.expression);
+ // This will allow types number, string, symbol or any. It will also allow enums, the unknown
+ // type, and any union of these types (like string | number).
+ if (!isTypeAnyOrAllConstituentTypesHaveKind(links.resolvedType, 132 /* NumberLike */ | 258 /* StringLike */ | 16777216 /* ESSymbol */)) {
+ error(node, ts.Diagnostics.A_computed_property_name_must_be_of_type_string_number_symbol_or_any);
+ }
+ else {
+ checkThatExpressionIsProperSymbolReference(node.expression, links.resolvedType, /*reportError*/ true);
+ }
+ }
+ return links.resolvedType;
+ }
+ function checkObjectLiteral(node, contextualMapper) {
+ var inDestructuringPattern = isAssignmentTarget(node);
+ // Grammar checking
+ checkGrammarObjectLiteralExpression(node, inDestructuringPattern);
+ var propertiesTable = {};
+ var propertiesArray = [];
+ var contextualType = getContextualType(node);
+ var contextualTypeHasPattern = contextualType && contextualType.pattern &&
+ (contextualType.pattern.kind === 161 /* ObjectBindingPattern */ || contextualType.pattern.kind === 165 /* ObjectLiteralExpression */);
+ var typeFlags = 0;
+ for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+ var memberDecl = _a[_i];
+ var member = memberDecl.symbol;
+ if (memberDecl.kind === 245 /* PropertyAssignment */ ||
+ memberDecl.kind === 246 /* ShorthandPropertyAssignment */ ||
+ ts.isObjectLiteralMethod(memberDecl)) {
+ var type = void 0;
+ if (memberDecl.kind === 245 /* PropertyAssignment */) {
+ type = checkPropertyAssignment(memberDecl, contextualMapper);
+ }
+ else if (memberDecl.kind === 143 /* MethodDeclaration */) {
+ type = checkObjectLiteralMethod(memberDecl, contextualMapper);
+ }
+ else {
+ ts.Debug.assert(memberDecl.kind === 246 /* ShorthandPropertyAssignment */);
+ type = checkExpression(memberDecl.name, contextualMapper);
+ }
+ typeFlags |= type.flags;
+ var prop = createSymbol(4 /* Property */ | 67108864 /* Transient */ | member.flags, member.name);
+ if (inDestructuringPattern) {
+ // If object literal is an assignment pattern and if the assignment pattern specifies a default value
+ // for the property, make the property optional.
+ var isOptional = (memberDecl.kind === 245 /* PropertyAssignment */ && hasDefaultValue(memberDecl.initializer)) ||
+ (memberDecl.kind === 246 /* ShorthandPropertyAssignment */ && memberDecl.objectAssignmentInitializer);
+ if (isOptional) {
+ prop.flags |= 536870912 /* Optional */;
+ }
+ }
+ else if (contextualTypeHasPattern) {
+ // If object literal is contextually typed by the implied type of a binding pattern, and if the
+ // binding pattern specifies a default value for the property, make the property optional.
+ var impliedProp = getPropertyOfType(contextualType, member.name);
+ if (impliedProp) {
+ prop.flags |= impliedProp.flags & 536870912 /* Optional */;
+ }
+ else if (!compilerOptions.suppressExcessPropertyErrors) {
+ error(memberDecl.name, ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(member), typeToString(contextualType));
+ }
+ }
+ prop.declarations = member.declarations;
+ prop.parent = member.parent;
+ if (member.valueDeclaration) {
+ prop.valueDeclaration = member.valueDeclaration;
+ }
+ prop.type = type;
+ prop.target = member;
+ member = prop;
+ }
+ else {
+ // TypeScript 1.0 spec (April 2014)
+ // A get accessor declaration is processed in the same manner as
+ // an ordinary function declaration(section 6.1) with no parameters.
+ // A set accessor declaration is processed in the same manner
+ // as an ordinary function declaration with a single parameter and a Void return type.
+ ts.Debug.assert(memberDecl.kind === 145 /* GetAccessor */ || memberDecl.kind === 146 /* SetAccessor */);
+ checkAccessorDeclaration(memberDecl);
+ }
+ if (!ts.hasDynamicName(memberDecl)) {
+ propertiesTable[member.name] = member;
+ }
+ propertiesArray.push(member);
+ }
+ // If object literal is contextually typed by the implied type of a binding pattern, augment the result
+ // type with those properties for which the binding pattern specifies a default value.
+ if (contextualTypeHasPattern) {
+ for (var _b = 0, _c = getPropertiesOfType(contextualType); _b < _c.length; _b++) {
+ var prop = _c[_b];
+ if (!ts.hasProperty(propertiesTable, prop.name)) {
+ if (!(prop.flags & 536870912 /* Optional */)) {
+ error(prop.valueDeclaration || prop.bindingElement, ts.Diagnostics.Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value);
+ }
+ propertiesTable[prop.name] = prop;
+ propertiesArray.push(prop);
+ }
+ }
+ }
+ var stringIndexType = getIndexType(0 /* String */);
+ var numberIndexType = getIndexType(1 /* Number */);
+ var result = createAnonymousType(node.symbol, propertiesTable, emptyArray, emptyArray, stringIndexType, numberIndexType);
+ var freshObjectLiteralFlag = compilerOptions.suppressExcessPropertyErrors ? 0 : 1048576 /* FreshObjectLiteral */;
+ result.flags |= 524288 /* ObjectLiteral */ | 4194304 /* ContainsObjectLiteral */ | freshObjectLiteralFlag | (typeFlags & 14680064 /* PropagatingFlags */);
+ if (inDestructuringPattern) {
+ result.pattern = node;
+ }
+ return result;
+ function getIndexType(kind) {
+ if (contextualType && contextualTypeHasIndexSignature(contextualType, kind)) {
+ var propTypes = [];
+ for (var i = 0; i < propertiesArray.length; i++) {
+ var propertyDecl = node.properties[i];
+ if (kind === 0 /* String */ || isNumericName(propertyDecl.name)) {
+ // Do not call getSymbolOfNode(propertyDecl), as that will get the
+ // original symbol for the node. We actually want to get the symbol
+ // created by checkObjectLiteral, since that will be appropriately
+ // contextually typed and resolved.
+ var type = getTypeOfSymbol(propertiesArray[i]);
+ if (!ts.contains(propTypes, type)) {
+ propTypes.push(type);
+ }
+ }
+ }
+ var result_1 = propTypes.length ? getUnionType(propTypes) : undefinedType;
+ typeFlags |= result_1.flags;
+ return result_1;
+ }
+ return undefined;
+ }
+ }
+ function checkJsxSelfClosingElement(node) {
+ checkJsxOpeningLikeElement(node);
+ return jsxElementType || anyType;
+ }
+ function tagNamesAreEquivalent(lhs, rhs) {
+ if (lhs.kind !== rhs.kind) {
+ return false;
+ }
+ if (lhs.kind === 69 /* Identifier */) {
+ return lhs.text === rhs.text;
+ }
+ return lhs.right.text === rhs.right.text &&
+ tagNamesAreEquivalent(lhs.left, rhs.left);
+ }
+ function checkJsxElement(node) {
+ // Check attributes
+ checkJsxOpeningLikeElement(node.openingElement);
+ // Check that the closing tag matches
+ if (!tagNamesAreEquivalent(node.openingElement.tagName, node.closingElement.tagName)) {
+ error(node.closingElement, ts.Diagnostics.Expected_corresponding_JSX_closing_tag_for_0, ts.getTextOfNode(node.openingElement.tagName));
+ }
+ else {
+ // Perform resolution on the closing tag so that rename/go to definition/etc work
+ getJsxElementTagSymbol(node.closingElement);
+ }
+ // Check children
+ for (var _i = 0, _a = node.children; _i < _a.length; _i++) {
+ var child = _a[_i];
+ switch (child.kind) {
+ case 240 /* JsxExpression */:
+ checkJsxExpression(child);
+ break;
+ case 233 /* JsxElement */:
+ checkJsxElement(child);
+ break;
+ case 234 /* JsxSelfClosingElement */:
+ checkJsxSelfClosingElement(child);
+ break;
+ default:
+ // No checks for JSX Text
+ ts.Debug.assert(child.kind === 236 /* JsxText */);
+ }
+ }
+ return jsxElementType || anyType;
+ }
+ /**
+ * Returns true iff the JSX element name would be a valid JS identifier, ignoring restrictions about keywords not being identifiers
+ */
+ function isUnhyphenatedJsxName(name) {
+ // - is the only character supported in JSX attribute names that isn't valid in JavaScript identifiers
+ return name.indexOf("-") < 0;
+ }
+ /**
+ * Returns true iff React would emit this tag name as a string rather than an identifier or qualified name
+ */
+ function isJsxIntrinsicIdentifier(tagName) {
+ if (tagName.kind === 135 /* QualifiedName */) {
+ return false;
+ }
+ else {
+ return ts.isIntrinsicJsxName(tagName.text);
+ }
+ }
+ function checkJsxAttribute(node, elementAttributesType, nameTable) {
+ var correspondingPropType = undefined;
+ // Look up the corresponding property for this attribute
+ if (elementAttributesType === emptyObjectType && isUnhyphenatedJsxName(node.name.text)) {
+ // If there is no 'props' property, you may not have non-"data-" attributes
+ error(node.parent, ts.Diagnostics.JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property, getJsxElementPropertiesName());
+ }
+ else if (elementAttributesType && !isTypeAny(elementAttributesType)) {
+ var correspondingPropSymbol = getPropertyOfType(elementAttributesType, node.name.text);
+ correspondingPropType = correspondingPropSymbol && getTypeOfSymbol(correspondingPropSymbol);
+ if (isUnhyphenatedJsxName(node.name.text)) {
+ // Maybe there's a string indexer?
+ var indexerType = getIndexTypeOfType(elementAttributesType, 0 /* String */);
+ if (indexerType) {
+ correspondingPropType = indexerType;
+ }
+ else {
+ // If there's no corresponding property with this name, error
+ if (!correspondingPropType) {
+ error(node.name, ts.Diagnostics.Property_0_does_not_exist_on_type_1, node.name.text, typeToString(elementAttributesType));
+ return unknownType;
+ }
+ }
+ }
+ }
+ var exprType;
+ if (node.initializer) {
+ exprType = checkExpression(node.initializer);
+ }
+ else {
+ // <Elem attr /> is sugar for <Elem attr={true} />
+ exprType = booleanType;
+ }
+ if (correspondingPropType) {
+ checkTypeAssignableTo(exprType, correspondingPropType, node);
+ }
+ nameTable[node.name.text] = true;
+ return exprType;
+ }
+ function checkJsxSpreadAttribute(node, elementAttributesType, nameTable) {
+ var type = checkExpression(node.expression);
+ var props = getPropertiesOfType(type);
+ for (var _i = 0; _i < props.length; _i++) {
+ var prop = props[_i];
+ // Is there a corresponding property in the element attributes type? Skip checking of properties
+ // that have already been assigned to, as these are not actually pushed into the resulting type
+ if (!nameTable[prop.name]) {
+ var targetPropSym = getPropertyOfType(elementAttributesType, prop.name);
+ if (targetPropSym) {
+ var msg = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property, prop.name);
+ checkTypeAssignableTo(getTypeOfSymbol(prop), getTypeOfSymbol(targetPropSym), node, undefined, msg);
+ }
+ nameTable[prop.name] = true;
+ }
+ }
+ return type;
+ }
+ /// Returns the type JSX.IntrinsicElements. May return `unknownType` if that type is not present.
+ function getJsxIntrinsicElementsType() {
+ if (!jsxIntrinsicElementsType) {
+ jsxIntrinsicElementsType = getExportedTypeFromNamespace(JsxNames.JSX, JsxNames.IntrinsicElements) || unknownType;
+ }
+ return jsxIntrinsicElementsType;
+ }
+ /// Given a JSX opening element or self-closing element, return the symbol of the property that the tag name points to if
+ /// this is an intrinsic tag. This might be a named
+ /// property of the IntrinsicElements interface, or its string indexer.
+ /// If this is a class-based tag (otherwise returns undefined), returns the symbol of the class
+ /// type or factory function.
+ /// Otherwise, returns unknownSymbol.
+ function getJsxElementTagSymbol(node) {
+ var flags = 8 /* UnknownElement */;
+ var links = getNodeLinks(node);
+ if (!links.resolvedSymbol) {
+ if (isJsxIntrinsicIdentifier(node.tagName)) {
+ links.resolvedSymbol = lookupIntrinsicTag(node);
+ }
+ else {
+ links.resolvedSymbol = lookupClassTag(node);
+ }
+ }
+ return links.resolvedSymbol;
+ function lookupIntrinsicTag(node) {
+ var intrinsicElementsType = getJsxIntrinsicElementsType();
+ if (intrinsicElementsType !== unknownType) {
+ // Property case
+ var intrinsicProp = getPropertyOfType(intrinsicElementsType, node.tagName.text);
+ if (intrinsicProp) {
+ links.jsxFlags |= 1 /* IntrinsicNamedElement */;
+ return intrinsicProp;
+ }
+ // Intrinsic string indexer case
+ var indexSignatureType = getIndexTypeOfType(intrinsicElementsType, 0 /* String */);
+ if (indexSignatureType) {
+ links.jsxFlags |= 2 /* IntrinsicIndexedElement */;
+ return intrinsicElementsType.symbol;
+ }
+ // Wasn't found
+ error(node, ts.Diagnostics.Property_0_does_not_exist_on_type_1, node.tagName.text, "JSX." + JsxNames.IntrinsicElements);
+ return unknownSymbol;
+ }
+ else {
+ if (compilerOptions.noImplicitAny) {
+ error(node, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists, JsxNames.IntrinsicElements);
+ }
+ }
+ }
+ function lookupClassTag(node) {
+ var valueSymbol = resolveJsxTagName(node);
+ // Look up the value in the current scope
+ if (valueSymbol && valueSymbol !== unknownSymbol) {
+ links.jsxFlags |= 4 /* ClassElement */;
+ if (valueSymbol.flags & 8388608 /* Alias */) {
+ markAliasSymbolAsReferenced(valueSymbol);
+ }
+ }
+ return valueSymbol || unknownSymbol;
+ }
+ function resolveJsxTagName(node) {
+ if (node.tagName.kind === 69 /* Identifier */) {
+ var tag = node.tagName;
+ var sym = getResolvedSymbol(tag);
+ return sym.exportSymbol || sym;
+ }
+ else {
+ return checkQualifiedName(node.tagName).symbol;
+ }
+ }
+ }
+ /**
+ * Given a JSX element that is a class element, finds the Element Instance Type. If the
+ * element is not a class element, or the class element type cannot be determined, returns 'undefined'.
+ * For example, in the element <MyClass>, the element instance type is `MyClass` (not `typeof MyClass`).
+ */
+ function getJsxElementInstanceType(node) {
+ // There is no such thing as an instance type for a non-class element. This
+ // line shouldn't be hit.
+ ts.Debug.assert(!!(getNodeLinks(node).jsxFlags & 4 /* ClassElement */), "Should not call getJsxElementInstanceType on non-class Element");
+ var classSymbol = getJsxElementTagSymbol(node);
+ if (classSymbol === unknownSymbol) {
+ // Couldn't find the class instance type. Error has already been issued
+ return anyType;
+ }
+ var valueType = getTypeOfSymbol(classSymbol);
+ if (isTypeAny(valueType)) {
+ // Short-circuit if the class tag is using an element type 'any'
+ return anyType;
+ }
+ // Resolve the signatures, preferring constructors
+ var signatures = getSignaturesOfType(valueType, 1 /* Construct */);
+ if (signatures.length === 0) {
+ // No construct signatures, try call signatures
+ signatures = getSignaturesOfType(valueType, 0 /* Call */);
+ if (signatures.length === 0) {
+ // We found no signatures at all, which is an error
+ error(node.tagName, ts.Diagnostics.JSX_element_type_0_does_not_have_any_construct_or_call_signatures, ts.getTextOfNode(node.tagName));
+ return unknownType;
+ }
+ }
+ var returnType = getUnionType(signatures.map(getReturnTypeOfSignature));
+ // Issue an error if this return type isn't assignable to JSX.ElementClass
+ var elemClassType = getJsxGlobalElementClassType();
+ if (elemClassType) {
+ checkTypeRelatedTo(returnType, elemClassType, assignableRelation, node, ts.Diagnostics.JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements);
+ }
+ return returnType;
+ }
+ /// e.g. "props" for React.d.ts,
+ /// or 'undefined' if ElementAttributesPropery doesn't exist (which means all
+ /// non-intrinsic elements' attributes type is 'any'),
+ /// or '' if it has 0 properties (which means every
+ /// non-instrinsic elements' attributes type is the element instance type)
+ function getJsxElementPropertiesName() {
+ // JSX
+ var jsxNamespace = getGlobalSymbol(JsxNames.JSX, 1536 /* Namespace */, /*diagnosticMessage*/ undefined);
+ // JSX.ElementAttributesProperty [symbol]
+ var attribsPropTypeSym = jsxNamespace && getSymbol(jsxNamespace.exports, JsxNames.ElementAttributesPropertyNameContainer, 793056 /* Type */);
+ // JSX.ElementAttributesProperty [type]
+ var attribPropType = attribsPropTypeSym && getDeclaredTypeOfSymbol(attribsPropTypeSym);
+ // The properites of JSX.ElementAttributesProperty
+ var attribProperties = attribPropType && getPropertiesOfType(attribPropType);
+ if (attribProperties) {
+ // Element Attributes has zero properties, so the element attributes type will be the class instance type
+ if (attribProperties.length === 0) {
+ return "";
+ }
+ else if (attribProperties.length === 1) {
+ return attribProperties[0].name;
+ }
+ else {
+ error(attribsPropTypeSym.declarations[0], ts.Diagnostics.The_global_type_JSX_0_may_not_have_more_than_one_property, JsxNames.ElementAttributesPropertyNameContainer);
+ return undefined;
+ }
+ }
+ else {
+ // No interface exists, so the element attributes type will be an implicit any
+ return undefined;
+ }
+ }
+ /**
+ * Given an opening/self-closing element, get the 'element attributes type', i.e. the type that tells
+ * us which attributes are valid on a given element.
+ */
+ function getJsxElementAttributesType(node) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedJsxType) {
+ var sym = getJsxElementTagSymbol(node);
+ if (links.jsxFlags & 4 /* ClassElement */) {
+ var elemInstanceType = getJsxElementInstanceType(node);
+ if (isTypeAny(elemInstanceType)) {
+ return links.resolvedJsxType = elemInstanceType;
+ }
+ var propsName = getJsxElementPropertiesName();
+ if (propsName === undefined) {
+ // There is no type ElementAttributesProperty, return 'any'
+ return links.resolvedJsxType = anyType;
+ }
+ else if (propsName === "") {
+ // If there is no e.g. 'props' member in ElementAttributesProperty, use the element class type instead
+ return links.resolvedJsxType = elemInstanceType;
+ }
+ else {
+ var attributesType = getTypeOfPropertyOfType(elemInstanceType, propsName);
+ if (!attributesType) {
+ // There is no property named 'props' on this instance type
+ return links.resolvedJsxType = emptyObjectType;
+ }
+ else if (isTypeAny(attributesType) || (attributesType === unknownType)) {
+ return links.resolvedJsxType = attributesType;
+ }
+ else if (!(attributesType.flags & 80896 /* ObjectType */)) {
+ error(node.tagName, ts.Diagnostics.JSX_element_attributes_type_0_must_be_an_object_type, typeToString(attributesType));
+ return links.resolvedJsxType = anyType;
+ }
+ else {
+ return links.resolvedJsxType = attributesType;
+ }
+ }
+ }
+ else if (links.jsxFlags & 1 /* IntrinsicNamedElement */) {
+ return links.resolvedJsxType = getTypeOfSymbol(sym);
+ }
+ else if (links.jsxFlags & 2 /* IntrinsicIndexedElement */) {
+ return links.resolvedJsxType = getIndexTypeOfSymbol(sym, 0 /* String */);
+ }
+ else {
+ // Resolution failed, so we don't know
+ return links.resolvedJsxType = anyType;
+ }
+ }
+ return links.resolvedJsxType;
+ }
+ /**
+ * Given a JSX attribute, returns the symbol for the corresponds property
+ * of the element attributes type. Will return unknownSymbol for attributes
+ * that have no matching element attributes type property.
+ */
+ function getJsxAttributePropertySymbol(attrib) {
+ var attributesType = getJsxElementAttributesType(attrib.parent);
+ var prop = getPropertyOfType(attributesType, attrib.name.text);
+ return prop || unknownSymbol;
+ }
+ var jsxElementClassType = undefined;
+ function getJsxGlobalElementClassType() {
+ if (!jsxElementClassType) {
+ jsxElementClassType = getExportedTypeFromNamespace(JsxNames.JSX, JsxNames.ElementClass);
+ }
+ return jsxElementClassType;
+ }
+ /// Returns all the properties of the Jsx.IntrinsicElements interface
+ function getJsxIntrinsicTagNames() {
+ var intrinsics = getJsxIntrinsicElementsType();
+ return intrinsics ? getPropertiesOfType(intrinsics) : emptyArray;
+ }
+ function checkJsxPreconditions(errorNode) {
+ // Preconditions for using JSX
+ if ((compilerOptions.jsx || 0 /* None */) === 0 /* None */) {
+ error(errorNode, ts.Diagnostics.Cannot_use_JSX_unless_the_jsx_flag_is_provided);
+ }
+ if (jsxElementType === undefined) {
+ if (compilerOptions.noImplicitAny) {
+ error(errorNode, ts.Diagnostics.JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist);
+ }
+ }
+ }
+ function checkJsxOpeningLikeElement(node) {
+ checkGrammarJsxElement(node);
+ checkJsxPreconditions(node);
+ // If we're compiling under --jsx react, the symbol 'React' should
+ // be marked as 'used' so we don't incorrectly elide its import. And if there
+ // is no 'React' symbol in scope, we should issue an error.
+ if (compilerOptions.jsx === 2 /* React */) {
+ var reactSym = resolveName(node.tagName, "React", 107455 /* Value */, ts.Diagnostics.Cannot_find_name_0, "React");
+ if (reactSym) {
+ getSymbolLinks(reactSym).referenced = true;
+ }
+ }
+ var targetAttributesType = getJsxElementAttributesType(node);
+ var nameTable = {};
+ // Process this array in right-to-left order so we know which
+ // attributes (mostly from spreads) are being overwritten and
+ // thus should have their types ignored
+ var sawSpreadedAny = false;
+ for (var i = node.attributes.length - 1; i >= 0; i--) {
+ if (node.attributes[i].kind === 238 /* JsxAttribute */) {
+ checkJsxAttribute((node.attributes[i]), targetAttributesType, nameTable);
+ }
+ else {
+ ts.Debug.assert(node.attributes[i].kind === 239 /* JsxSpreadAttribute */);
+ var spreadType = checkJsxSpreadAttribute((node.attributes[i]), targetAttributesType, nameTable);
+ if (isTypeAny(spreadType)) {
+ sawSpreadedAny = true;
+ }
+ }
+ }
+ // Check that all required properties have been provided. If an 'any'
+ // was spreaded in, though, assume that it provided all required properties
+ if (targetAttributesType && !sawSpreadedAny) {
+ var targetProperties = getPropertiesOfType(targetAttributesType);
+ for (var i = 0; i < targetProperties.length; i++) {
+ if (!(targetProperties[i].flags & 536870912 /* Optional */) &&
+ nameTable[targetProperties[i].name] === undefined) {
+ error(node, ts.Diagnostics.Property_0_is_missing_in_type_1, targetProperties[i].name, typeToString(targetAttributesType));
+ }
+ }
+ }
+ }
+ function checkJsxExpression(node) {
+ if (node.expression) {
+ return checkExpression(node.expression);
+ }
+ else {
+ return unknownType;
+ }
+ }
+ // If a symbol is a synthesized symbol with no value declaration, we assume it is a property. Example of this are the synthesized
+ // '.prototype' property as well as synthesized tuple index properties.
+ function getDeclarationKindFromSymbol(s) {
+ return s.valueDeclaration ? s.valueDeclaration.kind : 141 /* PropertyDeclaration */;
+ }
+ function getDeclarationFlagsFromSymbol(s) {
+ return s.valueDeclaration ? ts.getCombinedNodeFlags(s.valueDeclaration) : s.flags & 134217728 /* Prototype */ ? 16 /* Public */ | 128 /* Static */ : 0;
+ }
+ /**
+ * Check whether the requested property access is valid.
+ * Returns true if node is a valid property access, and false otherwise.
+ * @param node The node to be checked.
+ * @param left The left hand side of the property access (e.g.: the super in `super.foo`).
+ * @param type The type of left.
+ * @param prop The symbol for the right hand side of the property access.
+ */
+ function checkClassPropertyAccess(node, left, type, prop) {
+ var flags = getDeclarationFlagsFromSymbol(prop);
+ var declaringClass = getDeclaredTypeOfSymbol(prop.parent);
+ if (left.kind === 95 /* SuperKeyword */) {
+ var errorNode = node.kind === 166 /* PropertyAccessExpression */ ?
+ node.name :
+ node.right;
+ // TS 1.0 spec (April 2014): 4.8.2
+ // - In a constructor, instance member function, instance member accessor, or
+ // instance member variable initializer where this references a derived class instance,
+ // a super property access is permitted and must specify a public instance member function of the base class.
+ // - In a static member function or static member accessor
+ // where this references the constructor function object of a derived class,
+ // a super property access is permitted and must specify a public static member function of the base class.
+ if (getDeclarationKindFromSymbol(prop) !== 143 /* MethodDeclaration */) {
+ // `prop` refers to a *property* declared in the super class
+ // rather than a *method*, so it does not satisfy the above criteria.
+ error(errorNode, ts.Diagnostics.Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword);
+ return false;
+ }
+ if (flags & 256 /* Abstract */) {
+ // A method cannot be accessed in a super property access if the method is abstract.
+ // This error could mask a private property access error. But, a member
+ // cannot simultaneously be private and abstract, so this will trigger an
+ // additional error elsewhere.
+ error(errorNode, ts.Diagnostics.Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression, symbolToString(prop), typeToString(declaringClass));
+ return false;
+ }
+ }
+ // Public properties are otherwise accessible.
+ if (!(flags & (32 /* Private */ | 64 /* Protected */))) {
+ return true;
+ }
+ // Property is known to be private or protected at this point
+ // Get the declaring and enclosing class instance types
+ var enclosingClassDeclaration = ts.getContainingClass(node);
+ var enclosingClass = enclosingClassDeclaration ? getDeclaredTypeOfSymbol(getSymbolOfNode(enclosingClassDeclaration)) : undefined;
+ // Private property is accessible if declaring and enclosing class are the same
+ if (flags & 32 /* Private */) {
+ if (declaringClass !== enclosingClass) {
+ error(node, ts.Diagnostics.Property_0_is_private_and_only_accessible_within_class_1, symbolToString(prop), typeToString(declaringClass));
+ return false;
+ }
+ return true;
+ }
+ // Property is known to be protected at this point
+ // All protected properties of a supertype are accessible in a super access
+ if (left.kind === 95 /* SuperKeyword */) {
+ return true;
+ }
+ // A protected property is accessible in the declaring class and classes derived from it
+ if (!enclosingClass || !hasBaseType(enclosingClass, declaringClass)) {
+ error(node, ts.Diagnostics.Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses, symbolToString(prop), typeToString(declaringClass));
+ return false;
+ }
+ // No further restrictions for static properties
+ if (flags & 128 /* Static */) {
+ return true;
+ }
+ // An instance property must be accessed through an instance of the enclosing class
+ if (type.flags & 33554432 /* ThisType */) {
+ // get the original type -- represented as the type constraint of the 'this' type
+ type = getConstraintOfTypeParameter(type);
+ }
+ // TODO: why is the first part of this check here?
+ if (!(getTargetType(type).flags & (1024 /* Class */ | 2048 /* Interface */) && hasBaseType(type, enclosingClass))) {
+ error(node, ts.Diagnostics.Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1, symbolToString(prop), typeToString(enclosingClass));
+ return false;
+ }
+ return true;
+ }
+ function checkPropertyAccessExpression(node) {
+ return checkPropertyAccessExpressionOrQualifiedName(node, node.expression, node.name);
+ }
+ function checkQualifiedName(node) {
+ return checkPropertyAccessExpressionOrQualifiedName(node, node.left, node.right);
+ }
+ function checkPropertyAccessExpressionOrQualifiedName(node, left, right) {
+ var type = checkExpression(left);
+ if (isTypeAny(type)) {
+ return type;
+ }
+ var apparentType = getApparentType(getWidenedType(type));
+ if (apparentType === unknownType) {
+ // handle cases when type is Type parameter with invalid constraint
+ return unknownType;
+ }
+ var prop = getPropertyOfType(apparentType, right.text);
+ if (!prop) {
+ if (right.text) {
+ error(right, ts.Diagnostics.Property_0_does_not_exist_on_type_1, ts.declarationNameToString(right), typeToString(type.flags & 33554432 /* ThisType */ ? apparentType : type));
+ }
+ return unknownType;
+ }
+ getNodeLinks(node).resolvedSymbol = prop;
+ if (prop.parent && prop.parent.flags & 32 /* Class */) {
+ checkClassPropertyAccess(node, left, apparentType, prop);
+ }
+ return getTypeOfSymbol(prop);
+ }
+ function isValidPropertyAccess(node, propertyName) {
+ var left = node.kind === 166 /* PropertyAccessExpression */
+ ? node.expression
+ : node.left;
+ var type = checkExpression(left);
+ if (type !== unknownType && !isTypeAny(type)) {
+ var prop = getPropertyOfType(getWidenedType(type), propertyName);
+ if (prop && prop.parent && prop.parent.flags & 32 /* Class */) {
+ return checkClassPropertyAccess(node, left, type, prop);
+ }
+ }
+ return true;
+ }
+ function checkIndexedAccess(node) {
+ // Grammar checking
+ if (!node.argumentExpression) {
+ var sourceFile = getSourceFile(node);
+ if (node.parent.kind === 169 /* NewExpression */ && node.parent.expression === node) {
+ var start = ts.skipTrivia(sourceFile.text, node.expression.end);
+ var end = node.end;
+ grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead);
+ }
+ else {
+ var start = node.end - "]".length;
+ var end = node.end;
+ grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Expression_expected);
+ }
+ }
+ // Obtain base constraint such that we can bail out if the constraint is an unknown type
+ var objectType = getApparentType(checkExpression(node.expression));
+ var indexType = node.argumentExpression ? checkExpression(node.argumentExpression) : unknownType;
+ if (objectType === unknownType) {
+ return unknownType;
+ }
+ var isConstEnum = isConstEnumObjectType(objectType);
+ if (isConstEnum &&
+ (!node.argumentExpression || node.argumentExpression.kind !== 9 /* StringLiteral */)) {
+ error(node.argumentExpression, ts.Diagnostics.A_const_enum_member_can_only_be_accessed_using_a_string_literal);
+ return unknownType;
+ }
+ // TypeScript 1.0 spec (April 2014): 4.10 Property Access
+ // - If IndexExpr is a string literal or a numeric literal and ObjExpr's apparent type has a property with the name
+ // given by that literal(converted to its string representation in the case of a numeric literal), the property access is of the type of that property.
+ // - Otherwise, if ObjExpr's apparent type has a numeric index signature and IndexExpr is of type Any, the Number primitive type, or an enum type,
+ // the property access is of the type of that index signature.
+ // - Otherwise, if ObjExpr's apparent type has a string index signature and IndexExpr is of type Any, the String or Number primitive type, or an enum type,
+ // the property access is of the type of that index signature.
+ // - Otherwise, if IndexExpr is of type Any, the String or Number primitive type, or an enum type, the property access is of type Any.
+ // See if we can index as a property.
+ if (node.argumentExpression) {
+ var name_11 = getPropertyNameForIndexedAccess(node.argumentExpression, indexType);
+ if (name_11 !== undefined) {
+ var prop = getPropertyOfType(objectType, name_11);
+ if (prop) {
+ getNodeLinks(node).resolvedSymbol = prop;
+ return getTypeOfSymbol(prop);
+ }
+ else if (isConstEnum) {
+ error(node.argumentExpression, ts.Diagnostics.Property_0_does_not_exist_on_const_enum_1, name_11, symbolToString(objectType.symbol));
+ return unknownType;
+ }
+ }
+ }
+ // Check for compatible indexer types.
+ if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 258 /* StringLike */ | 132 /* NumberLike */ | 16777216 /* ESSymbol */)) {
+ // Try to use a number indexer.
+ if (isTypeAnyOrAllConstituentTypesHaveKind(indexType, 132 /* NumberLike */)) {
+ var numberIndexType = getIndexTypeOfType(objectType, 1 /* Number */);
+ if (numberIndexType) {
+ return numberIndexType;
+ }
+ }
+ // Try to use string indexing.
+ var stringIndexType = getIndexTypeOfType(objectType, 0 /* String */);
+ if (stringIndexType) {
+ return stringIndexType;
+ }
+ // Fall back to any.
+ if (compilerOptions.noImplicitAny && !compilerOptions.suppressImplicitAnyIndexErrors && !isTypeAny(objectType)) {
+ error(node, ts.Diagnostics.Index_signature_of_object_type_implicitly_has_an_any_type);
+ }
+ return anyType;
+ }
+ // REVIEW: Users should know the type that was actually used.
+ error(node, ts.Diagnostics.An_index_expression_argument_must_be_of_type_string_number_symbol_or_any);
+ return unknownType;
+ }
+ /**
+ * If indexArgumentExpression is a string literal or number literal, returns its text.
+ * If indexArgumentExpression is a constant value, returns its string value.
+ * If indexArgumentExpression is a well known symbol, returns the property name corresponding
+ * to this symbol, as long as it is a proper symbol reference.
+ * Otherwise, returns undefined.
+ */
+ function getPropertyNameForIndexedAccess(indexArgumentExpression, indexArgumentType) {
+ if (indexArgumentExpression.kind === 9 /* StringLiteral */ || indexArgumentExpression.kind === 8 /* NumericLiteral */) {
+ return indexArgumentExpression.text;
+ }
+ if (indexArgumentExpression.kind === 167 /* ElementAccessExpression */ || indexArgumentExpression.kind === 166 /* PropertyAccessExpression */) {
+ var value = getConstantValue(indexArgumentExpression);
+ if (value !== undefined) {
+ return value.toString();
+ }
+ }
+ if (checkThatExpressionIsProperSymbolReference(indexArgumentExpression, indexArgumentType, /*reportError*/ false)) {
+ var rightHandSideName = indexArgumentExpression.name.text;
+ return ts.getPropertyNameForKnownSymbolName(rightHandSideName);
+ }
+ return undefined;
+ }
+ /**
+ * A proper symbol reference requires the following:
+ * 1. The property access denotes a property that exists
+ * 2. The expression is of the form Symbol.<identifier>
+ * 3. The property access is of the primitive type symbol.
+ * 4. Symbol in this context resolves to the global Symbol object
+ */
+ function checkThatExpressionIsProperSymbolReference(expression, expressionType, reportError) {
+ if (expressionType === unknownType) {
+ // There is already an error, so no need to report one.
+ return false;
+ }
+ if (!ts.isWellKnownSymbolSyntactically(expression)) {
+ return false;
+ }
+ // Make sure the property type is the primitive symbol type
+ if ((expressionType.flags & 16777216 /* ESSymbol */) === 0) {
+ if (reportError) {
+ error(expression, ts.Diagnostics.A_computed_property_name_of_the_form_0_must_be_of_type_symbol, ts.getTextOfNode(expression));
+ }
+ return false;
+ }
+ // The name is Symbol.<someName>, so make sure Symbol actually resolves to the
+ // global Symbol object
+ var leftHandSide = expression.expression;
+ var leftHandSideSymbol = getResolvedSymbol(leftHandSide);
+ if (!leftHandSideSymbol) {
+ return false;
+ }
+ var globalESSymbol = getGlobalESSymbolConstructorSymbol();
+ if (!globalESSymbol) {
+ // Already errored when we tried to look up the symbol
+ return false;
+ }
+ if (leftHandSideSymbol !== globalESSymbol) {
+ if (reportError) {
+ error(leftHandSide, ts.Diagnostics.Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object);
+ }
+ return false;
+ }
+ return true;
+ }
+ function resolveUntypedCall(node) {
+ if (node.kind === 170 /* TaggedTemplateExpression */) {
+ checkExpression(node.template);
+ }
+ else if (node.kind !== 139 /* Decorator */) {
+ ts.forEach(node.arguments, function (argument) {
+ checkExpression(argument);
+ });
+ }
+ return anySignature;
+ }
+ function resolveErrorCall(node) {
+ resolveUntypedCall(node);
+ return unknownSignature;
+ }
+ // Re-order candidate signatures into the result array. Assumes the result array to be empty.
+ // The candidate list orders groups in reverse, but within a group signatures are kept in declaration order
+ // A nit here is that we reorder only signatures that belong to the same symbol,
+ // so order how inherited signatures are processed is still preserved.
+ // interface A { (x: string): void }
+ // interface B extends A { (x: 'foo'): string }
+ // let b: B;
+ // b('foo') // <- here overloads should be processed as [(x:'foo'): string, (x: string): void]
+ function reorderCandidates(signatures, result) {
+ var lastParent;
+ var lastSymbol;
+ var cutoffIndex = 0;
+ var index;
+ var specializedIndex = -1;
+ var spliceIndex;
+ ts.Debug.assert(!result.length);
+ for (var _i = 0; _i < signatures.length; _i++) {
+ var signature = signatures[_i];
+ var symbol = signature.declaration && getSymbolOfNode(signature.declaration);
+ var parent_5 = signature.declaration && signature.declaration.parent;
+ if (!lastSymbol || symbol === lastSymbol) {
+ if (lastParent && parent_5 === lastParent) {
+ index++;
+ }
+ else {
+ lastParent = parent_5;
+ index = cutoffIndex;
+ }
+ }
+ else {
+ // current declaration belongs to a different symbol
+ // set cutoffIndex so re-orderings in the future won't change result set from 0 to cutoffIndex
+ index = cutoffIndex = result.length;
+ lastParent = parent_5;
+ }
+ lastSymbol = symbol;
+ // specialized signatures always need to be placed before non-specialized signatures regardless
+ // of the cutoff position; see GH#1133
+ if (signature.hasStringLiterals) {
+ specializedIndex++;
+ spliceIndex = specializedIndex;
+ // The cutoff index always needs to be greater than or equal to the specialized signature index
+ // in order to prevent non-specialized signatures from being added before a specialized
+ // signature.
+ cutoffIndex++;
+ }
+ else {
+ spliceIndex = index;
+ }
+ result.splice(spliceIndex, 0, signature);
+ }
+ }
+ function getSpreadArgumentIndex(args) {
+ for (var i = 0; i < args.length; i++) {
+ var arg = args[i];
+ if (arg && arg.kind === 185 /* SpreadElementExpression */) {
+ return i;
+ }
+ }
+ return -1;
+ }
+ function hasCorrectArity(node, args, signature) {
+ var adjustedArgCount; // Apparent number of arguments we will have in this call
+ var typeArguments; // Type arguments (undefined if none)
+ var callIsIncomplete; // In incomplete call we want to be lenient when we have too few arguments
+ var isDecorator;
+ var spreadArgIndex = -1;
+ if (node.kind === 170 /* TaggedTemplateExpression */) {
+ var tagExpression = node;
+ // Even if the call is incomplete, we'll have a missing expression as our last argument,
+ // so we can say the count is just the arg list length
+ adjustedArgCount = args.length;
+ typeArguments = undefined;
+ if (tagExpression.template.kind === 183 /* TemplateExpression */) {
+ // If a tagged template expression lacks a tail literal, the call is incomplete.
+ // Specifically, a template only can end in a TemplateTail or a Missing literal.
+ var templateExpression = tagExpression.template;
+ var lastSpan = ts.lastOrUndefined(templateExpression.templateSpans);
+ ts.Debug.assert(lastSpan !== undefined); // we should always have at least one span.
+ callIsIncomplete = ts.nodeIsMissing(lastSpan.literal) || !!lastSpan.literal.isUnterminated;
+ }
+ else {
+ // If the template didn't end in a backtick, or its beginning occurred right prior to EOF,
+ // then this might actually turn out to be a TemplateHead in the future;
+ // so we consider the call to be incomplete.
+ var templateLiteral = tagExpression.template;
+ ts.Debug.assert(templateLiteral.kind === 11 /* NoSubstitutionTemplateLiteral */);
+ callIsIncomplete = !!templateLiteral.isUnterminated;
+ }
+ }
+ else if (node.kind === 139 /* Decorator */) {
+ isDecorator = true;
+ typeArguments = undefined;
+ adjustedArgCount = getEffectiveArgumentCount(node, /*args*/ undefined, signature);
+ }
+ else {
+ var callExpression = node;
+ if (!callExpression.arguments) {
+ // This only happens when we have something of the form: 'new C'
+ ts.Debug.assert(callExpression.kind === 169 /* NewExpression */);
+ return signature.minArgumentCount === 0;
+ }
+ // For IDE scenarios we may have an incomplete call, so a trailing comma is tantamount to adding another argument.
+ adjustedArgCount = callExpression.arguments.hasTrailingComma ? args.length + 1 : args.length;
+ // If we are missing the close paren, the call is incomplete.
+ callIsIncomplete = callExpression.arguments.end === callExpression.end;
+ typeArguments = callExpression.typeArguments;
+ spreadArgIndex = getSpreadArgumentIndex(args);
+ }
+ // If the user supplied type arguments, but the number of type arguments does not match
+ // the declared number of type parameters, the call has an incorrect arity.
+ var hasRightNumberOfTypeArgs = !typeArguments ||
+ (signature.typeParameters && typeArguments.length === signature.typeParameters.length);
+ if (!hasRightNumberOfTypeArgs) {
+ return false;
+ }
+ // If spread arguments are present, check that they correspond to a rest parameter. If so, no
+ // further checking is necessary.
+ if (spreadArgIndex >= 0) {
+ return isRestParameterIndex(signature, spreadArgIndex);
+ }
+ // Too many arguments implies incorrect arity.
+ if (!signature.hasRestParameter && adjustedArgCount > signature.parameters.length) {
+ return false;
+ }
+ // If the call is incomplete, we should skip the lower bound check.
+ var hasEnoughArguments = adjustedArgCount >= signature.minArgumentCount;
+ return callIsIncomplete || hasEnoughArguments;
+ }
+ // If type has a single call signature and no other members, return that signature. Otherwise, return undefined.
+ function getSingleCallSignature(type) {
+ if (type.flags & 80896 /* ObjectType */) {
+ var resolved = resolveStructuredTypeMembers(type);
+ if (resolved.callSignatures.length === 1 && resolved.constructSignatures.length === 0 &&
+ resolved.properties.length === 0 && !resolved.stringIndexType && !resolved.numberIndexType) {
+ return resolved.callSignatures[0];
+ }
+ }
+ return undefined;
+ }
+ // Instantiate a generic signature in the context of a non-generic signature (section 3.8.5 in TypeScript spec)
+ function instantiateSignatureInContextOf(signature, contextualSignature, contextualMapper) {
+ var context = createInferenceContext(signature.typeParameters, /*inferUnionTypes*/ true);
+ forEachMatchingParameterType(contextualSignature, signature, function (source, target) {
+ // Type parameters from outer context referenced by source type are fixed by instantiation of the source type
+ inferTypes(context, instantiateType(source, contextualMapper), target);
+ });
+ return getSignatureInstantiation(signature, getInferredTypes(context));
+ }
+ function inferTypeArguments(node, signature, args, excludeArgument, context) {
+ var typeParameters = signature.typeParameters;
+ var inferenceMapper = createInferenceMapper(context);
+ // Clear out all the inference results from the last time inferTypeArguments was called on this context
+ for (var i = 0; i < typeParameters.length; i++) {
+ // As an optimization, we don't have to clear (and later recompute) inferred types
+ // for type parameters that have already been fixed on the previous call to inferTypeArguments.
+ // It would be just as correct to reset all of them. But then we'd be repeating the same work
+ // for the type parameters that were fixed, namely the work done by getInferredType.
+ if (!context.inferences[i].isFixed) {
+ context.inferredTypes[i] = undefined;
+ }
+ }
+ // On this call to inferTypeArguments, we may get more inferences for certain type parameters that were not
+ // fixed last time. This means that a type parameter that failed inference last time may succeed this time,
+ // or vice versa. Therefore, the failedTypeParameterIndex is useless if it points to an unfixed type parameter,
+ // because it may change. So here we reset it. However, getInferredType will not revisit any type parameters
+ // that were previously fixed. So if a fixed type parameter failed previously, it will fail again because
+ // it will contain the exact same set of inferences. So if we reset the index from a fixed type parameter,
+ // we will lose information that we won't recover this time around.
+ if (context.failedTypeParameterIndex !== undefined && !context.inferences[context.failedTypeParameterIndex].isFixed) {
+ context.failedTypeParameterIndex = undefined;
+ }
+ // We perform two passes over the arguments. In the first pass we infer from all arguments, but use
+ // wildcards for all context sensitive function expressions.
+ var argCount = getEffectiveArgumentCount(node, args, signature);
+ for (var i = 0; i < argCount; i++) {
+ var arg = getEffectiveArgument(node, args, i);
+ // If the effective argument is 'undefined', then it is an argument that is present but is synthetic.
+ if (arg === undefined || arg.kind !== 187 /* OmittedExpression */) {
+ var paramType = getTypeAtPosition(signature, i);
+ var argType = getEffectiveArgumentType(node, i, arg);
+ // If the effective argument type is 'undefined', there is no synthetic type
+ // for the argument. In that case, we should check the argument.
+ if (argType === undefined) {
+ // For context sensitive arguments we pass the identityMapper, which is a signal to treat all
+ // context sensitive function expressions as wildcards
+ var mapper = excludeArgument && excludeArgument[i] !== undefined ? identityMapper : inferenceMapper;
+ argType = checkExpressionWithContextualType(arg, paramType, mapper);
+ }
+ inferTypes(context, argType, paramType);
+ }
+ }
+ // In the second pass we visit only context sensitive arguments, and only those that aren't excluded, this
+ // time treating function expressions normally (which may cause previously inferred type arguments to be fixed
+ // as we construct types for contextually typed parameters)
+ // Decorators will not have `excludeArgument`, as their arguments cannot be contextually typed.
+ // Tagged template expressions will always have `undefined` for `excludeArgument[0]`.
+ if (excludeArgument) {
+ for (var i = 0; i < argCount; i++) {
+ // No need to check for omitted args and template expressions, their exlusion value is always undefined
+ if (excludeArgument[i] === false) {
+ var arg = args[i];
+ var paramType = getTypeAtPosition(signature, i);
+ inferTypes(context, checkExpressionWithContextualType(arg, paramType, inferenceMapper), paramType);
+ }
+ }
+ }
+ getInferredTypes(context);
+ }
+ function checkTypeArguments(signature, typeArguments, typeArgumentResultTypes, reportErrors, headMessage) {
+ var typeParameters = signature.typeParameters;
+ var typeArgumentsAreAssignable = true;
+ for (var i = 0; i < typeParameters.length; i++) {
+ var typeArgNode = typeArguments[i];
+ var typeArgument = getTypeFromTypeNode(typeArgNode);
+ // Do not push on this array! It has a preallocated length
+ typeArgumentResultTypes[i] = typeArgument;
+ if (typeArgumentsAreAssignable /* so far */) {
+ var constraint = getConstraintOfTypeParameter(typeParameters[i]);
+ if (constraint) {
+ var errorInfo = void 0;
+ var typeArgumentHeadMessage = ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1;
+ if (reportErrors && headMessage) {
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, typeArgumentHeadMessage);
+ typeArgumentHeadMessage = headMessage;
+ }
+ typeArgumentsAreAssignable = checkTypeAssignableTo(typeArgument, constraint, reportErrors ? typeArgNode : undefined, typeArgumentHeadMessage, errorInfo);
+ }
+ }
+ }
+ return typeArgumentsAreAssignable;
+ }
+ function checkApplicableSignature(node, args, signature, relation, excludeArgument, reportErrors) {
+ var argCount = getEffectiveArgumentCount(node, args, signature);
+ for (var i = 0; i < argCount; i++) {
+ var arg = getEffectiveArgument(node, args, i);
+ // If the effective argument is 'undefined', then it is an argument that is present but is synthetic.
+ if (arg === undefined || arg.kind !== 187 /* OmittedExpression */) {
+ // Check spread elements against rest type (from arity check we know spread argument corresponds to a rest parameter)
+ var paramType = getTypeAtPosition(signature, i);
+ var argType = getEffectiveArgumentType(node, i, arg);
+ // If the effective argument type is 'undefined', there is no synthetic type
+ // for the argument. In that case, we should check the argument.
+ if (argType === undefined) {
+ argType = arg.kind === 9 /* StringLiteral */ && !reportErrors
+ ? getStringLiteralType(arg)
+ : checkExpressionWithContextualType(arg, paramType, excludeArgument && excludeArgument[i] ? identityMapper : undefined);
+ }
+ // Use argument expression as error location when reporting errors
+ var errorNode = reportErrors ? getEffectiveArgumentErrorNode(node, i, arg) : undefined;
+ var headMessage = ts.Diagnostics.Argument_of_type_0_is_not_assignable_to_parameter_of_type_1;
+ if (!checkTypeRelatedTo(argType, paramType, relation, errorNode, headMessage)) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+ /**
+ * Returns the effective arguments for an expression that works like a function invocation.
+ *
+ * If 'node' is a CallExpression or a NewExpression, then its argument list is returned.
+ * If 'node' is a TaggedTemplateExpression, a new argument list is constructed from the substitution
+ * expressions, where the first element of the list is `undefined`.
+ * If 'node' is a Decorator, the argument list will be `undefined`, and its arguments and types
+ * will be supplied from calls to `getEffectiveArgumentCount` and `getEffectiveArgumentType`.
+ */
+ function getEffectiveCallArguments(node) {
+ var args;
+ if (node.kind === 170 /* TaggedTemplateExpression */) {
+ var template = node.template;
+ args = [undefined];
+ if (template.kind === 183 /* TemplateExpression */) {
+ ts.forEach(template.templateSpans, function (span) {
+ args.push(span.expression);
+ });
+ }
+ }
+ else if (node.kind === 139 /* Decorator */) {
+ // For a decorator, we return undefined as we will determine
+ // the number and types of arguments for a decorator using
+ // `getEffectiveArgumentCount` and `getEffectiveArgumentType` below.
+ return undefined;
+ }
+ else {
+ args = node.arguments || emptyArray;
+ }
+ return args;
+ }
+ /**
+ * Returns the effective argument count for a node that works like a function invocation.
+ * If 'node' is a Decorator, the number of arguments is derived from the decoration
+ * target and the signature:
+ * If 'node.target' is a class declaration or class expression, the effective argument
+ * count is 1.
+ * If 'node.target' is a parameter declaration, the effective argument count is 3.
+ * If 'node.target' is a property declaration, the effective argument count is 2.
+ * If 'node.target' is a method or accessor declaration, the effective argument count
+ * is 3, although it can be 2 if the signature only accepts two arguments, allowing
+ * us to match a property decorator.
+ * Otherwise, the argument count is the length of the 'args' array.
+ */
+ function getEffectiveArgumentCount(node, args, signature) {
+ if (node.kind === 139 /* Decorator */) {
+ switch (node.parent.kind) {
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ // A class decorator will have one argument (see `ClassDecorator` in core.d.ts)
+ return 1;
+ case 141 /* PropertyDeclaration */:
+ // A property declaration decorator will have two arguments (see
+ // `PropertyDecorator` in core.d.ts)
+ return 2;
+ case 143 /* MethodDeclaration */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ // A method or accessor declaration decorator will have two or three arguments (see
+ // `PropertyDecorator` and `MethodDecorator` in core.d.ts)
+ // If we are emitting decorators for ES3, we will only pass two arguments.
+ if (languageVersion === 0 /* ES3 */) {
+ return 2;
+ }
+ // If the method decorator signature only accepts a target and a key, we will only
+ // type check those arguments.
+ return signature.parameters.length >= 3 ? 3 : 2;
+ case 138 /* Parameter */:
+ // A parameter declaration decorator will have three arguments (see
+ // `ParameterDecorator` in core.d.ts)
+ return 3;
+ }
+ }
+ else {
+ return args.length;
+ }
+ }
+ /**
+ * Returns the effective type of the first argument to a decorator.
+ * If 'node' is a class declaration or class expression, the effective argument type
+ * is the type of the static side of the class.
+ * If 'node' is a parameter declaration, the effective argument type is either the type
+ * of the static or instance side of the class for the parameter's parent method,
+ * depending on whether the method is declared static.
+ * For a constructor, the type is always the type of the static side of the class.
+ * If 'node' is a property, method, or accessor declaration, the effective argument
+ * type is the type of the static or instance side of the parent class for class
+ * element, depending on whether the element is declared static.
+ */
+ function getEffectiveDecoratorFirstArgumentType(node) {
+ // The first argument to a decorator is its `target`.
+ if (node.kind === 214 /* ClassDeclaration */) {
+ // For a class decorator, the `target` is the type of the class (e.g. the
+ // "static" or "constructor" side of the class)
+ var classSymbol = getSymbolOfNode(node);
+ return getTypeOfSymbol(classSymbol);
+ }
+ if (node.kind === 138 /* Parameter */) {
+ // For a parameter decorator, the `target` is the parent type of the
+ // parameter's containing method.
+ node = node.parent;
+ if (node.kind === 144 /* Constructor */) {
+ var classSymbol = getSymbolOfNode(node);
+ return getTypeOfSymbol(classSymbol);
+ }
+ }
+ if (node.kind === 141 /* PropertyDeclaration */ ||
+ node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 145 /* GetAccessor */ ||
+ node.kind === 146 /* SetAccessor */) {
+ // For a property or method decorator, the `target` is the
+ // "static"-side type of the parent of the member if the member is
+ // declared "static"; otherwise, it is the "instance"-side type of the
+ // parent of the member.
+ return getParentTypeOfClassElement(node);
+ }
+ ts.Debug.fail("Unsupported decorator target.");
+ return unknownType;
+ }
+ /**
+ * Returns the effective type for the second argument to a decorator.
+ * If 'node' is a parameter, its effective argument type is one of the following:
+ * If 'node.parent' is a constructor, the effective argument type is 'any', as we
+ * will emit `undefined`.
+ * If 'node.parent' is a member with an identifier, numeric, or string literal name,
+ * the effective argument type will be a string literal type for the member name.
+ * If 'node.parent' is a computed property name, the effective argument type will
+ * either be a symbol type or the string type.
+ * If 'node' is a member with an identifier, numeric, or string literal name, the
+ * effective argument type will be a string literal type for the member name.
+ * If 'node' is a computed property name, the effective argument type will either
+ * be a symbol type or the string type.
+ * A class decorator does not have a second argument type.
+ */
+ function getEffectiveDecoratorSecondArgumentType(node) {
+ // The second argument to a decorator is its `propertyKey`
+ if (node.kind === 214 /* ClassDeclaration */) {
+ ts.Debug.fail("Class decorators should not have a second synthetic argument.");
+ return unknownType;
+ }
+ if (node.kind === 138 /* Parameter */) {
+ node = node.parent;
+ if (node.kind === 144 /* Constructor */) {
+ // For a constructor parameter decorator, the `propertyKey` will be `undefined`.
+ return anyType;
+ }
+ }
+ if (node.kind === 141 /* PropertyDeclaration */ ||
+ node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 145 /* GetAccessor */ ||
+ node.kind === 146 /* SetAccessor */) {
+ // The `propertyKey` for a property or method decorator will be a
+ // string literal type if the member name is an identifier, number, or string;
+ // otherwise, if the member name is a computed property name it will
+ // be either string or symbol.
+ var element = node;
+ switch (element.name.kind) {
+ case 69 /* Identifier */:
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ return getStringLiteralType(element.name);
+ case 136 /* ComputedPropertyName */:
+ var nameType = checkComputedPropertyName(element.name);
+ if (allConstituentTypesHaveKind(nameType, 16777216 /* ESSymbol */)) {
+ return nameType;
+ }
+ else {
+ return stringType;
+ }
+ default:
+ ts.Debug.fail("Unsupported property name.");
+ return unknownType;
+ }
+ }
+ ts.Debug.fail("Unsupported decorator target.");
+ return unknownType;
+ }
+ /**
+ * Returns the effective argument type for the third argument to a decorator.
+ * If 'node' is a parameter, the effective argument type is the number type.
+ * If 'node' is a method or accessor, the effective argument type is a
+ * `TypedPropertyDescriptor<T>` instantiated with the type of the member.
+ * Class and property decorators do not have a third effective argument.
+ */
+ function getEffectiveDecoratorThirdArgumentType(node) {
+ // The third argument to a decorator is either its `descriptor` for a method decorator
+ // or its `parameterIndex` for a paramter decorator
+ if (node.kind === 214 /* ClassDeclaration */) {
+ ts.Debug.fail("Class decorators should not have a third synthetic argument.");
+ return unknownType;
+ }
+ if (node.kind === 138 /* Parameter */) {
+ // The `parameterIndex` for a parameter decorator is always a number
+ return numberType;
+ }
+ if (node.kind === 141 /* PropertyDeclaration */) {
+ ts.Debug.fail("Property decorators should not have a third synthetic argument.");
+ return unknownType;
+ }
+ if (node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 145 /* GetAccessor */ ||
+ node.kind === 146 /* SetAccessor */) {
+ // The `descriptor` for a method decorator will be a `TypedPropertyDescriptor<T>`
+ // for the type of the member.
+ var propertyType = getTypeOfNode(node);
+ return createTypedPropertyDescriptorType(propertyType);
+ }
+ ts.Debug.fail("Unsupported decorator target.");
+ return unknownType;
+ }
+ /**
+ * Returns the effective argument type for the provided argument to a decorator.
+ */
+ function getEffectiveDecoratorArgumentType(node, argIndex) {
+ if (argIndex === 0) {
+ return getEffectiveDecoratorFirstArgumentType(node.parent);
+ }
+ else if (argIndex === 1) {
+ return getEffectiveDecoratorSecondArgumentType(node.parent);
+ }
+ else if (argIndex === 2) {
+ return getEffectiveDecoratorThirdArgumentType(node.parent);
+ }
+ ts.Debug.fail("Decorators should not have a fourth synthetic argument.");
+ return unknownType;
+ }
+ /**
+ * Gets the effective argument type for an argument in a call expression.
+ */
+ function getEffectiveArgumentType(node, argIndex, arg) {
+ // Decorators provide special arguments, a tagged template expression provides
+ // a special first argument, and string literals get string literal types
+ // unless we're reporting errors
+ if (node.kind === 139 /* Decorator */) {
+ return getEffectiveDecoratorArgumentType(node, argIndex);
+ }
+ else if (argIndex === 0 && node.kind === 170 /* TaggedTemplateExpression */) {
+ return globalTemplateStringsArrayType;
+ }
+ // This is not a synthetic argument, so we return 'undefined'
+ // to signal that the caller needs to check the argument.
+ return undefined;
+ }
+ /**
+ * Gets the effective argument expression for an argument in a call expression.
+ */
+ function getEffectiveArgument(node, args, argIndex) {
+ // For a decorator or the first argument of a tagged template expression we return undefined.
+ if (node.kind === 139 /* Decorator */ ||
+ (argIndex === 0 && node.kind === 170 /* TaggedTemplateExpression */)) {
+ return undefined;
+ }
+ return args[argIndex];
+ }
+ /**
+ * Gets the error node to use when reporting errors for an effective argument.
+ */
+ function getEffectiveArgumentErrorNode(node, argIndex, arg) {
+ if (node.kind === 139 /* Decorator */) {
+ // For a decorator, we use the expression of the decorator for error reporting.
+ return node.expression;
+ }
+ else if (argIndex === 0 && node.kind === 170 /* TaggedTemplateExpression */) {
+ // For a the first argument of a tagged template expression, we use the template of the tag for error reporting.
+ return node.template;
+ }
+ else {
+ return arg;
+ }
+ }
+ function resolveCall(node, signatures, candidatesOutArray, headMessage) {
+ var isTaggedTemplate = node.kind === 170 /* TaggedTemplateExpression */;
+ var isDecorator = node.kind === 139 /* Decorator */;
+ var typeArguments;
+ if (!isTaggedTemplate && !isDecorator) {
+ typeArguments = node.typeArguments;
+ // We already perform checking on the type arguments on the class declaration itself.
+ if (node.expression.kind !== 95 /* SuperKeyword */) {
+ ts.forEach(typeArguments, checkSourceElement);
+ }
+ }
+ var candidates = candidatesOutArray || [];
+ // reorderCandidates fills up the candidates array directly
+ reorderCandidates(signatures, candidates);
+ if (!candidates.length) {
+ reportError(ts.Diagnostics.Supplied_parameters_do_not_match_any_signature_of_call_target);
+ return resolveErrorCall(node);
+ }
+ var args = getEffectiveCallArguments(node);
+ // The following applies to any value of 'excludeArgument[i]':
+ // - true: the argument at 'i' is susceptible to a one-time permanent contextual typing.
+ // - undefined: the argument at 'i' is *not* susceptible to permanent contextual typing.
+ // - false: the argument at 'i' *was* and *has been* permanently contextually typed.
+ //
+ // The idea is that we will perform type argument inference & assignability checking once
+ // without using the susceptible parameters that are functions, and once more for each of those
+ // parameters, contextually typing each as we go along.
+ //
+ // For a tagged template, then the first argument be 'undefined' if necessary
+ // because it represents a TemplateStringsArray.
+ //
+ // For a decorator, no arguments are susceptible to contextual typing due to the fact
+ // decorators are applied to a declaration by the emitter, and not to an expression.
+ var excludeArgument;
+ if (!isDecorator) {
+ // We do not need to call `getEffectiveArgumentCount` here as it only
+ // applies when calculating the number of arguments for a decorator.
+ for (var i = isTaggedTemplate ? 1 : 0; i < args.length; i++) {
+ if (isContextSensitive(args[i])) {
+ if (!excludeArgument) {
+ excludeArgument = new Array(args.length);
+ }
+ excludeArgument[i] = true;
+ }
+ }
+ }
+ // The following variables are captured and modified by calls to chooseOverload.
+ // If overload resolution or type argument inference fails, we want to report the
+ // best error possible. The best error is one which says that an argument was not
+ // assignable to a parameter. This implies that everything else about the overload
+ // was fine. So if there is any overload that is only incorrect because of an
+ // argument, we will report an error on that one.
+ //
+ // function foo(s: string) {}
+ // function foo(n: number) {} // Report argument error on this overload
+ // function foo() {}
+ // foo(true);
+ //
+ // If none of the overloads even made it that far, there are two possibilities.
+ // There was a problem with type arguments for some overload, in which case
+ // report an error on that. Or none of the overloads even had correct arity,
+ // in which case give an arity error.
+ //
+ // function foo<T>(x: T, y: T) {} // Report type argument inference error
+ // function foo() {}
+ // foo(0, true);
+ //
+ var candidateForArgumentError;
+ var candidateForTypeArgumentError;
+ var resultOfFailedInference;
+ var result;
+ // Section 4.12.1:
+ // if the candidate list contains one or more signatures for which the type of each argument
+ // expression is a subtype of each corresponding parameter type, the return type of the first
+ // of those signatures becomes the return type of the function call.
+ // Otherwise, the return type of the first signature in the candidate list becomes the return
+ // type of the function call.
+ //
+ // Whether the call is an error is determined by assignability of the arguments. The subtype pass
+ // is just important for choosing the best signature. So in the case where there is only one
+ // signature, the subtype pass is useless. So skipping it is an optimization.
+ if (candidates.length > 1) {
+ result = chooseOverload(candidates, subtypeRelation);
+ }
+ if (!result) {
+ // Reinitialize these pointers for round two
+ candidateForArgumentError = undefined;
+ candidateForTypeArgumentError = undefined;
+ resultOfFailedInference = undefined;
+ result = chooseOverload(candidates, assignableRelation);
+ }
+ if (result) {
+ return result;
+ }
+ // No signatures were applicable. Now report errors based on the last applicable signature with
+ // no arguments excluded from assignability checks.
+ // If candidate is undefined, it means that no candidates had a suitable arity. In that case,
+ // skip the checkApplicableSignature check.
+ if (candidateForArgumentError) {
+ // excludeArgument is undefined, in this case also equivalent to [undefined, undefined, ...]
+ // The importance of excludeArgument is to prevent us from typing function expression parameters
+ // in arguments too early. If possible, we'd like to only type them once we know the correct
+ // overload. However, this matters for the case where the call is correct. When the call is
+ // an error, we don't need to exclude any arguments, although it would cause no harm to do so.
+ checkApplicableSignature(node, args, candidateForArgumentError, assignableRelation, /*excludeArgument*/ undefined, /*reportErrors*/ true);
+ }
+ else if (candidateForTypeArgumentError) {
+ if (!isTaggedTemplate && !isDecorator && typeArguments) {
+ checkTypeArguments(candidateForTypeArgumentError, node.typeArguments, [], /*reportErrors*/ true, headMessage);
+ }
+ else {
+ ts.Debug.assert(resultOfFailedInference.failedTypeParameterIndex >= 0);
+ var failedTypeParameter = candidateForTypeArgumentError.typeParameters[resultOfFailedInference.failedTypeParameterIndex];
+ var inferenceCandidates = getInferenceCandidates(resultOfFailedInference, resultOfFailedInference.failedTypeParameterIndex);
+ var diagnosticChainHead = ts.chainDiagnosticMessages(/*details*/ undefined, // details will be provided by call to reportNoCommonSupertypeError
+ ts.Diagnostics.The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly, typeToString(failedTypeParameter));
+ if (headMessage) {
+ diagnosticChainHead = ts.chainDiagnosticMessages(diagnosticChainHead, headMessage);
+ }
+ reportNoCommonSupertypeError(inferenceCandidates, node.expression || node.tag, diagnosticChainHead);
+ }
+ }
+ else {
+ reportError(ts.Diagnostics.Supplied_parameters_do_not_match_any_signature_of_call_target);
+ }
+ // No signature was applicable. We have already reported the errors for the invalid signature.
+ // If this is a type resolution session, e.g. Language Service, try to get better information that anySignature.
+ // Pick the first candidate that matches the arity. This way we can get a contextual type for cases like:
+ // declare function f(a: { xa: number; xb: number; });
+ // f({ |
+ if (!produceDiagnostics) {
+ for (var _i = 0; _i < candidates.length; _i++) {
+ var candidate = candidates[_i];
+ if (hasCorrectArity(node, args, candidate)) {
+ if (candidate.typeParameters && typeArguments) {
+ candidate = getSignatureInstantiation(candidate, ts.map(typeArguments, getTypeFromTypeNode));
+ }
+ return candidate;
+ }
+ }
+ }
+ return resolveErrorCall(node);
+ function reportError(message, arg0, arg1, arg2) {
+ var errorInfo;
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2);
+ if (headMessage) {
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, headMessage);
+ }
+ diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(node, errorInfo));
+ }
+ function chooseOverload(candidates, relation) {
+ for (var _i = 0; _i < candidates.length; _i++) {
+ var originalCandidate = candidates[_i];
+ if (!hasCorrectArity(node, args, originalCandidate)) {
+ continue;
+ }
+ var candidate = void 0;
+ var typeArgumentsAreValid = void 0;
+ var inferenceContext = originalCandidate.typeParameters
+ ? createInferenceContext(originalCandidate.typeParameters, /*inferUnionTypes*/ false)
+ : undefined;
+ while (true) {
+ candidate = originalCandidate;
+ if (candidate.typeParameters) {
+ var typeArgumentTypes = void 0;
+ if (typeArguments) {
+ typeArgumentTypes = new Array(candidate.typeParameters.length);
+ typeArgumentsAreValid = checkTypeArguments(candidate, typeArguments, typeArgumentTypes, /*reportErrors*/ false);
+ }
+ else {
+ inferTypeArguments(node, candidate, args, excludeArgument, inferenceContext);
+ typeArgumentsAreValid = inferenceContext.failedTypeParameterIndex === undefined;
+ typeArgumentTypes = inferenceContext.inferredTypes;
+ }
+ if (!typeArgumentsAreValid) {
+ break;
+ }
+ candidate = getSignatureInstantiation(candidate, typeArgumentTypes);
+ }
+ if (!checkApplicableSignature(node, args, candidate, relation, excludeArgument, /*reportErrors*/ false)) {
+ break;
+ }
+ var index = excludeArgument ? ts.indexOf(excludeArgument, true) : -1;
+ if (index < 0) {
+ return candidate;
+ }
+ excludeArgument[index] = false;
+ }
+ // A post-mortem of this iteration of the loop. The signature was not applicable,
+ // so we want to track it as a candidate for reporting an error. If the candidate
+ // had no type parameters, or had no issues related to type arguments, we can
+ // report an error based on the arguments. If there was an issue with type
+ // arguments, then we can only report an error based on the type arguments.
+ if (originalCandidate.typeParameters) {
+ var instantiatedCandidate = candidate;
+ if (typeArgumentsAreValid) {
+ candidateForArgumentError = instantiatedCandidate;
+ }
+ else {
+ candidateForTypeArgumentError = originalCandidate;
+ if (!typeArguments) {
+ resultOfFailedInference = inferenceContext;
+ }
+ }
+ }
+ else {
+ ts.Debug.assert(originalCandidate === candidate);
+ candidateForArgumentError = originalCandidate;
+ }
+ }
+ return undefined;
+ }
+ }
+ function resolveCallExpression(node, candidatesOutArray) {
+ if (node.expression.kind === 95 /* SuperKeyword */) {
+ var superType = checkSuperExpression(node.expression);
+ if (superType !== unknownType) {
+ // In super call, the candidate signatures are the matching arity signatures of the base constructor function instantiated
+ // with the type arguments specified in the extends clause.
+ var baseTypeNode = ts.getClassExtendsHeritageClauseElement(ts.getContainingClass(node));
+ var baseConstructors = getInstantiatedConstructorsForTypeArguments(superType, baseTypeNode.typeArguments);
+ return resolveCall(node, baseConstructors, candidatesOutArray);
+ }
+ return resolveUntypedCall(node);
+ }
+ var funcType = checkExpression(node.expression);
+ var apparentType = getApparentType(funcType);
+ if (apparentType === unknownType) {
+ // Another error has already been reported
+ return resolveErrorCall(node);
+ }
+ // Technically, this signatures list may be incomplete. We are taking the apparent type,
+ // but we are not including call signatures that may have been added to the Object or
+ // Function interface, since they have none by default. This is a bit of a leap of faith
+ // that the user will not add any.
+ var callSignatures = getSignaturesOfType(apparentType, 0 /* Call */);
+ var constructSignatures = getSignaturesOfType(apparentType, 1 /* Construct */);
+ // TS 1.0 spec: 4.12
+ // If FuncExpr is of type Any, or of an object type that has no call or construct signatures
+ // but is a subtype of the Function interface, the call is an untyped function call. In an
+ // untyped function call no TypeArgs are permitted, Args can be any argument list, no contextual
+ // types are provided for the argument expressions, and the result is always of type Any.
+ // We exclude union types because we may have a union of function types that happen to have
+ // no common signatures.
+ if (isTypeAny(funcType) || (!callSignatures.length && !constructSignatures.length && !(funcType.flags & 16384 /* Union */) && isTypeAssignableTo(funcType, globalFunctionType))) {
+ // The unknownType indicates that an error already occured (and was reported). No
+ // need to report another error in this case.
+ if (funcType !== unknownType && node.typeArguments) {
+ error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
+ }
+ return resolveUntypedCall(node);
+ }
+ // If FuncExpr's apparent type(section 3.8.1) is a function type, the call is a typed function call.
+ // TypeScript employs overload resolution in typed function calls in order to support functions
+ // with multiple call signatures.
+ if (!callSignatures.length) {
+ if (constructSignatures.length) {
+ error(node, ts.Diagnostics.Value_of_type_0_is_not_callable_Did_you_mean_to_include_new, typeToString(funcType));
+ }
+ else {
+ error(node, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature);
+ }
+ return resolveErrorCall(node);
+ }
+ return resolveCall(node, callSignatures, candidatesOutArray);
+ }
+ function resolveNewExpression(node, candidatesOutArray) {
+ if (node.arguments && languageVersion < 1 /* ES5 */) {
+ var spreadIndex = getSpreadArgumentIndex(node.arguments);
+ if (spreadIndex >= 0) {
+ error(node.arguments[spreadIndex], ts.Diagnostics.Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher);
+ }
+ }
+ var expressionType = checkExpression(node.expression);
+ // If expressionType's apparent type(section 3.8.1) is an object type with one or
+ // more construct signatures, the expression is processed in the same manner as a
+ // function call, but using the construct signatures as the initial set of candidate
+ // signatures for overload resolution. The result type of the function call becomes
+ // the result type of the operation.
+ expressionType = getApparentType(expressionType);
+ if (expressionType === unknownType) {
+ // Another error has already been reported
+ return resolveErrorCall(node);
+ }
+ // If the expression is a class of abstract type, then it cannot be instantiated.
+ // Note, only class declarations can be declared abstract.
+ // In the case of a merged class-module or class-interface declaration,
+ // only the class declaration node will have the Abstract flag set.
+ var valueDecl = expressionType.symbol && getClassLikeDeclarationOfSymbol(expressionType.symbol);
+ if (valueDecl && valueDecl.flags & 256 /* Abstract */) {
+ error(node, ts.Diagnostics.Cannot_create_an_instance_of_the_abstract_class_0, ts.declarationNameToString(valueDecl.name));
+ return resolveErrorCall(node);
+ }
+ // TS 1.0 spec: 4.11
+ // If expressionType is of type Any, Args can be any argument
+ // list and the result of the operation is of type Any.
+ if (isTypeAny(expressionType)) {
+ if (node.typeArguments) {
+ error(node, ts.Diagnostics.Untyped_function_calls_may_not_accept_type_arguments);
+ }
+ return resolveUntypedCall(node);
+ }
+ // Technically, this signatures list may be incomplete. We are taking the apparent type,
+ // but we are not including construct signatures that may have been added to the Object or
+ // Function interface, since they have none by default. This is a bit of a leap of faith
+ // that the user will not add any.
+ var constructSignatures = getSignaturesOfType(expressionType, 1 /* Construct */);
+ if (constructSignatures.length) {
+ return resolveCall(node, constructSignatures, candidatesOutArray);
+ }
+ // If expressionType's apparent type is an object type with no construct signatures but
+ // one or more call signatures, the expression is processed as a function call. A compile-time
+ // error occurs if the result of the function call is not Void. The type of the result of the
+ // operation is Any.
+ var callSignatures = getSignaturesOfType(expressionType, 0 /* Call */);
+ if (callSignatures.length) {
+ var signature = resolveCall(node, callSignatures, candidatesOutArray);
+ if (getReturnTypeOfSignature(signature) !== voidType) {
+ error(node, ts.Diagnostics.Only_a_void_function_can_be_called_with_the_new_keyword);
+ }
+ return signature;
+ }
+ error(node, ts.Diagnostics.Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature);
+ return resolveErrorCall(node);
+ }
+ function resolveTaggedTemplateExpression(node, candidatesOutArray) {
+ var tagType = checkExpression(node.tag);
+ var apparentType = getApparentType(tagType);
+ if (apparentType === unknownType) {
+ // Another error has already been reported
+ return resolveErrorCall(node);
+ }
+ var callSignatures = getSignaturesOfType(apparentType, 0 /* Call */);
+ if (isTypeAny(tagType) || (!callSignatures.length && !(tagType.flags & 16384 /* Union */) && isTypeAssignableTo(tagType, globalFunctionType))) {
+ return resolveUntypedCall(node);
+ }
+ if (!callSignatures.length) {
+ error(node, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature);
+ return resolveErrorCall(node);
+ }
+ return resolveCall(node, callSignatures, candidatesOutArray);
+ }
+ /**
+ * Gets the localized diagnostic head message to use for errors when resolving a decorator as a call expression.
+ */
+ function getDiagnosticHeadMessageForDecoratorResolution(node) {
+ switch (node.parent.kind) {
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ return ts.Diagnostics.Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression;
+ case 138 /* Parameter */:
+ return ts.Diagnostics.Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression;
+ case 141 /* PropertyDeclaration */:
+ return ts.Diagnostics.Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression;
+ case 143 /* MethodDeclaration */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return ts.Diagnostics.Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression;
+ }
+ }
+ /**
+ * Resolves a decorator as if it were a call expression.
+ */
+ function resolveDecorator(node, candidatesOutArray) {
+ var funcType = checkExpression(node.expression);
+ var apparentType = getApparentType(funcType);
+ if (apparentType === unknownType) {
+ return resolveErrorCall(node);
+ }
+ var callSignatures = getSignaturesOfType(apparentType, 0 /* Call */);
+ if (funcType === anyType || (!callSignatures.length && !(funcType.flags & 16384 /* Union */) && isTypeAssignableTo(funcType, globalFunctionType))) {
+ return resolveUntypedCall(node);
+ }
+ var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
+ if (!callSignatures.length) {
+ var errorInfo;
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Cannot_invoke_an_expression_whose_type_lacks_a_call_signature);
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, headMessage);
+ diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(node, errorInfo));
+ return resolveErrorCall(node);
+ }
+ return resolveCall(node, callSignatures, candidatesOutArray, headMessage);
+ }
+ // candidatesOutArray is passed by signature help in the language service, and collectCandidates
+ // must fill it up with the appropriate candidate signatures
+ function getResolvedSignature(node, candidatesOutArray) {
+ var links = getNodeLinks(node);
+ // If getResolvedSignature has already been called, we will have cached the resolvedSignature.
+ // However, it is possible that either candidatesOutArray was not passed in the first time,
+ // or that a different candidatesOutArray was passed in. Therefore, we need to redo the work
+ // to correctly fill the candidatesOutArray.
+ if (!links.resolvedSignature || candidatesOutArray) {
+ links.resolvedSignature = anySignature;
+ if (node.kind === 168 /* CallExpression */) {
+ links.resolvedSignature = resolveCallExpression(node, candidatesOutArray);
+ }
+ else if (node.kind === 169 /* NewExpression */) {
+ links.resolvedSignature = resolveNewExpression(node, candidatesOutArray);
+ }
+ else if (node.kind === 170 /* TaggedTemplateExpression */) {
+ links.resolvedSignature = resolveTaggedTemplateExpression(node, candidatesOutArray);
+ }
+ else if (node.kind === 139 /* Decorator */) {
+ links.resolvedSignature = resolveDecorator(node, candidatesOutArray);
+ }
+ else {
+ ts.Debug.fail("Branch in 'getResolvedSignature' should be unreachable.");
+ }
+ }
+ return links.resolvedSignature;
+ }
+ /**
+ * Syntactically and semantically checks a call or new expression.
+ * @param node The call/new expression to be checked.
+ * @returns On success, the expression's signature's return type. On failure, anyType.
+ */
+ function checkCallExpression(node) {
+ // Grammar checking; stop grammar-checking if checkGrammarTypeArguments return true
+ checkGrammarTypeArguments(node, node.typeArguments) || checkGrammarArguments(node, node.arguments);
+ var signature = getResolvedSignature(node);
+ if (node.expression.kind === 95 /* SuperKeyword */) {
+ return voidType;
+ }
+ if (node.kind === 169 /* NewExpression */) {
+ var declaration = signature.declaration;
+ if (declaration &&
+ declaration.kind !== 144 /* Constructor */ &&
+ declaration.kind !== 148 /* ConstructSignature */ &&
+ declaration.kind !== 153 /* ConstructorType */) {
+ // When resolved signature is a call signature (and not a construct signature) the result type is any
+ if (compilerOptions.noImplicitAny) {
+ error(node, ts.Diagnostics.new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type);
+ }
+ return anyType;
+ }
+ }
+ return getReturnTypeOfSignature(signature);
+ }
+ function checkTaggedTemplateExpression(node) {
+ return getReturnTypeOfSignature(getResolvedSignature(node));
+ }
+ function checkAssertion(node) {
+ var exprType = getRegularTypeOfObjectLiteral(checkExpression(node.expression));
+ var targetType = getTypeFromTypeNode(node.type);
+ if (produceDiagnostics && targetType !== unknownType) {
+ var widenedType = getWidenedType(exprType);
+ if (!(isTypeAssignableTo(targetType, widenedType))) {
+ checkTypeAssignableTo(exprType, targetType, node, ts.Diagnostics.Neither_type_0_nor_type_1_is_assignable_to_the_other);
+ }
+ }
+ return targetType;
+ }
+ function getTypeAtPosition(signature, pos) {
+ return signature.hasRestParameter ?
+ pos < signature.parameters.length - 1 ? getTypeOfSymbol(signature.parameters[pos]) : getRestTypeOfSignature(signature) :
+ pos < signature.parameters.length ? getTypeOfSymbol(signature.parameters[pos]) : anyType;
+ }
+ function assignContextualParameterTypes(signature, context, mapper) {
+ var len = signature.parameters.length - (signature.hasRestParameter ? 1 : 0);
+ for (var i = 0; i < len; i++) {
+ var parameter = signature.parameters[i];
+ var contextualParameterType = getTypeAtPosition(context, i);
+ assignTypeToParameterAndFixTypeParameters(parameter, contextualParameterType, mapper);
+ }
+ if (signature.hasRestParameter && isRestParameterIndex(context, signature.parameters.length - 1)) {
+ var parameter = ts.lastOrUndefined(signature.parameters);
+ var contextualParameterType = getTypeOfSymbol(ts.lastOrUndefined(context.parameters));
+ assignTypeToParameterAndFixTypeParameters(parameter, contextualParameterType, mapper);
+ }
+ }
+ // When contextual typing assigns a type to a parameter that contains a binding pattern, we also need to push
+ // the destructured type into the contained binding elements.
+ function assignBindingElementTypes(node) {
+ if (ts.isBindingPattern(node.name)) {
+ for (var _i = 0, _a = node.name.elements; _i < _a.length; _i++) {
+ var element = _a[_i];
+ if (element.kind !== 187 /* OmittedExpression */) {
+ if (element.name.kind === 69 /* Identifier */) {
+ getSymbolLinks(getSymbolOfNode(element)).type = getTypeForBindingElement(element);
+ }
+ assignBindingElementTypes(element);
+ }
+ }
+ }
+ }
+ function assignTypeToParameterAndFixTypeParameters(parameter, contextualType, mapper) {
+ var links = getSymbolLinks(parameter);
+ if (!links.type) {
+ links.type = instantiateType(contextualType, mapper);
+ assignBindingElementTypes(parameter.valueDeclaration);
+ }
+ else if (isInferentialContext(mapper)) {
+ // Even if the parameter already has a type, it might be because it was given a type while
+ // processing the function as an argument to a prior signature during overload resolution.
+ // If this was the case, it may have caused some type parameters to be fixed. So here,
+ // we need to ensure that type parameters at the same positions get fixed again. This is
+ // done by calling instantiateType to attach the mapper to the contextualType, and then
+ // calling inferTypes to force a walk of contextualType so that all the correct fixing
+ // happens. The choice to pass in links.type may seem kind of arbitrary, but it serves
+ // to make sure that all the correct positions in contextualType are reached by the walk.
+ // Here is an example:
+ //
+ // interface Base {
+ // baseProp;
+ // }
+ // interface Derived extends Base {
+ // toBase(): Base;
+ // }
+ //
+ // var derived: Derived;
+ //
+ // declare function foo<T>(x: T, func: (p: T) => T): T;
+ // declare function foo<T>(x: T, func: (p: T) => T): T;
+ //
+ // var result = foo(derived, d => d.toBase());
+ //
+ // We are typing d while checking the second overload. But we've already given d
+ // a type (Derived) from the first overload. However, we still want to fix the
+ // T in the second overload so that we do not infer Base as a candidate for T
+ // (inferring Base would make type argument inference inconsistent between the two
+ // overloads).
+ inferTypes(mapper.context, links.type, instantiateType(contextualType, mapper));
+ }
+ }
+ function createPromiseType(promisedType) {
+ // creates a `Promise<T>` type where `T` is the promisedType argument
+ var globalPromiseType = getGlobalPromiseType();
+ if (globalPromiseType !== emptyGenericType) {
+ // if the promised type is itself a promise, get the underlying type; otherwise, fallback to the promised type
+ promisedType = getAwaitedType(promisedType);
+ return createTypeReference(globalPromiseType, [promisedType]);
+ }
+ return emptyObjectType;
+ }
+ function getReturnTypeFromBody(func, contextualMapper) {
+ var contextualSignature = getContextualSignatureForFunctionLikeDeclaration(func);
+ if (!func.body) {
+ return unknownType;
+ }
+ var isAsync = ts.isAsyncFunctionLike(func);
+ var type;
+ if (func.body.kind !== 192 /* Block */) {
+ type = checkExpressionCached(func.body, contextualMapper);
+ if (isAsync) {
+ // From within an async function you can return either a non-promise value or a promise. Any
+ // Promise/A+ compatible implementation will always assimilate any foreign promise, so the
+ // return type of the body should be unwrapped to its awaited type, which we will wrap in
+ // the native Promise<T> type later in this function.
+ type = checkAwaitedType(type, func, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
+ }
+ }
+ else {
+ var types;
+ var funcIsGenerator = !!func.asteriskToken;
+ if (funcIsGenerator) {
+ types = checkAndAggregateYieldOperandTypes(func.body, contextualMapper);
+ if (types.length === 0) {
+ var iterableIteratorAny = createIterableIteratorType(anyType);
+ if (compilerOptions.noImplicitAny) {
+ error(func.asteriskToken, ts.Diagnostics.Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type, typeToString(iterableIteratorAny));
+ }
+ return iterableIteratorAny;
+ }
+ }
+ else {
+ types = checkAndAggregateReturnExpressionTypes(func.body, contextualMapper, isAsync);
+ if (types.length === 0) {
+ if (isAsync) {
+ // For an async function, the return type will not be void, but rather a Promise for void.
+ var promiseType = createPromiseType(voidType);
+ if (promiseType === emptyObjectType) {
+ error(func, ts.Diagnostics.An_async_function_or_method_must_have_a_valid_awaitable_return_type);
+ return unknownType;
+ }
+ return promiseType;
+ }
+ else {
+ return voidType;
+ }
+ }
+ }
+ // When yield/return statements are contextually typed we allow the return type to be a union type.
+ // Otherwise we require the yield/return expressions to have a best common supertype.
+ type = contextualSignature ? getUnionType(types) : getCommonSupertype(types);
+ if (!type) {
+ if (funcIsGenerator) {
+ error(func, ts.Diagnostics.No_best_common_type_exists_among_yield_expressions);
+ return createIterableIteratorType(unknownType);
+ }
+ else {
+ error(func, ts.Diagnostics.No_best_common_type_exists_among_return_expressions);
+ return unknownType;
+ }
+ }
+ if (funcIsGenerator) {
+ type = createIterableIteratorType(type);
+ }
+ }
+ if (!contextualSignature) {
+ reportErrorsFromWidening(func, type);
+ }
+ var widenedType = getWidenedType(type);
+ if (isAsync) {
+ // From within an async function you can return either a non-promise value or a promise. Any
+ // Promise/A+ compatible implementation will always assimilate any foreign promise, so the
+ // return type of the body is awaited type of the body, wrapped in a native Promise<T> type.
+ var promiseType = createPromiseType(widenedType);
+ if (promiseType === emptyObjectType) {
+ error(func, ts.Diagnostics.An_async_function_or_method_must_have_a_valid_awaitable_return_type);
+ return unknownType;
+ }
+ return promiseType;
+ }
+ else {
+ return widenedType;
+ }
+ }
+ function checkAndAggregateYieldOperandTypes(body, contextualMapper) {
+ var aggregatedTypes = [];
+ ts.forEachYieldExpression(body, function (yieldExpression) {
+ var expr = yieldExpression.expression;
+ if (expr) {
+ var type = checkExpressionCached(expr, contextualMapper);
+ if (yieldExpression.asteriskToken) {
+ // A yield* expression effectively yields everything that its operand yields
+ type = checkElementTypeOfIterable(type, yieldExpression.expression);
+ }
+ if (!ts.contains(aggregatedTypes, type)) {
+ aggregatedTypes.push(type);
+ }
+ }
+ });
+ return aggregatedTypes;
+ }
+ function checkAndAggregateReturnExpressionTypes(body, contextualMapper, isAsync) {
+ var aggregatedTypes = [];
+ ts.forEachReturnStatement(body, function (returnStatement) {
+ var expr = returnStatement.expression;
+ if (expr) {
+ var type = checkExpressionCached(expr, contextualMapper);
+ if (isAsync) {
+ // From within an async function you can return either a non-promise value or a promise. Any
+ // Promise/A+ compatible implementation will always assimilate any foreign promise, so the
+ // return type of the body should be unwrapped to its awaited type, which should be wrapped in
+ // the native Promise<T> type by the caller.
+ type = checkAwaitedType(type, body.parent, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
+ }
+ if (!ts.contains(aggregatedTypes, type)) {
+ aggregatedTypes.push(type);
+ }
+ }
+ });
+ return aggregatedTypes;
+ }
+ function bodyContainsAReturnStatement(funcBody) {
+ return ts.forEachReturnStatement(funcBody, function (returnStatement) {
+ return true;
+ });
+ }
+ function bodyContainsSingleThrowStatement(body) {
+ return (body.statements.length === 1) && (body.statements[0].kind === 208 /* ThrowStatement */);
+ }
+ // TypeScript Specification 1.0 (6.3) - July 2014
+ // An explicitly typed function whose return type isn't the Void or the Any type
+ // must have at least one return statement somewhere in its body.
+ // An exception to this rule is if the function implementation consists of a single 'throw' statement.
+ function checkIfNonVoidFunctionHasReturnExpressionsOrSingleThrowStatment(func, returnType) {
+ if (!produceDiagnostics) {
+ return;
+ }
+ // Functions that return 'void' or 'any' don't need any return expressions.
+ if (returnType === voidType || isTypeAny(returnType)) {
+ return;
+ }
+ // If all we have is a function signature, or an arrow function with an expression body, then there is nothing to check.
+ if (ts.nodeIsMissing(func.body) || func.body.kind !== 192 /* Block */) {
+ return;
+ }
+ var bodyBlock = func.body;
+ // Ensure the body has at least one return expression.
+ if (bodyContainsAReturnStatement(bodyBlock)) {
+ return;
+ }
+ // If there are no return expressions, then we need to check if
+ // the function body consists solely of a throw statement;
+ // this is to make an exception for unimplemented functions.
+ if (bodyContainsSingleThrowStatement(bodyBlock)) {
+ return;
+ }
+ // This function does not conform to the specification.
+ error(func.type, ts.Diagnostics.A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value_or_consist_of_a_single_throw_statement);
+ }
+ function checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper) {
+ ts.Debug.assert(node.kind !== 143 /* MethodDeclaration */ || ts.isObjectLiteralMethod(node));
+ // Grammar checking
+ var hasGrammarError = checkGrammarFunctionLikeDeclaration(node);
+ if (!hasGrammarError && node.kind === 173 /* FunctionExpression */) {
+ checkGrammarForGenerator(node);
+ }
+ // The identityMapper object is used to indicate that function expressions are wildcards
+ if (contextualMapper === identityMapper && isContextSensitive(node)) {
+ return anyFunctionType;
+ }
+ var isAsync = ts.isAsyncFunctionLike(node);
+ if (isAsync) {
+ emitAwaiter = true;
+ }
+ var links = getNodeLinks(node);
+ var type = getTypeOfSymbol(node.symbol);
+ var contextSensitive = isContextSensitive(node);
+ var mightFixTypeParameters = contextSensitive && isInferentialContext(contextualMapper);
+ // Check if function expression is contextually typed and assign parameter types if so.
+ // See the comment in assignTypeToParameterAndFixTypeParameters to understand why we need to
+ // check mightFixTypeParameters.
+ if (mightFixTypeParameters || !(links.flags & 1024 /* ContextChecked */)) {
+ var contextualSignature = getContextualSignature(node);
+ // If a type check is started at a function expression that is an argument of a function call, obtaining the
+ // contextual type may recursively get back to here during overload resolution of the call. If so, we will have
+ // already assigned contextual types.
+ var contextChecked = !!(links.flags & 1024 /* ContextChecked */);
+ if (mightFixTypeParameters || !contextChecked) {
+ links.flags |= 1024 /* ContextChecked */;
+ if (contextualSignature) {
+ var signature = getSignaturesOfType(type, 0 /* Call */)[0];
+ if (contextSensitive) {
+ assignContextualParameterTypes(signature, contextualSignature, contextualMapper || identityMapper);
+ }
+ if (mightFixTypeParameters || !node.type && !signature.resolvedReturnType) {
+ var returnType = getReturnTypeFromBody(node, contextualMapper);
+ if (!signature.resolvedReturnType) {
+ signature.resolvedReturnType = returnType;
+ }
+ }
+ }
+ if (!contextChecked) {
+ checkSignatureDeclaration(node);
+ }
+ }
+ }
+ if (produceDiagnostics && node.kind !== 143 /* MethodDeclaration */ && node.kind !== 142 /* MethodSignature */) {
+ checkCollisionWithCapturedSuperVariable(node, node.name);
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ }
+ return type;
+ }
+ function checkFunctionExpressionOrObjectLiteralMethodBody(node) {
+ ts.Debug.assert(node.kind !== 143 /* MethodDeclaration */ || ts.isObjectLiteralMethod(node));
+ var isAsync = ts.isAsyncFunctionLike(node);
+ if (isAsync) {
+ emitAwaiter = true;
+ }
+ var returnType = node.type && getTypeFromTypeNode(node.type);
+ var promisedType;
+ if (returnType && isAsync) {
+ promisedType = checkAsyncFunctionReturnType(node);
+ }
+ if (returnType && !node.asteriskToken) {
+ checkIfNonVoidFunctionHasReturnExpressionsOrSingleThrowStatment(node, isAsync ? promisedType : returnType);
+ }
+ if (node.body) {
+ if (!node.type) {
+ // There are some checks that are only performed in getReturnTypeFromBody, that may produce errors
+ // we need. An example is the noImplicitAny errors resulting from widening the return expression
+ // of a function. Because checking of function expression bodies is deferred, there was never an
+ // appropriate time to do this during the main walk of the file (see the comment at the top of
+ // checkFunctionExpressionBodies). So it must be done now.
+ getReturnTypeOfSignature(getSignatureFromDeclaration(node));
+ }
+ if (node.body.kind === 192 /* Block */) {
+ checkSourceElement(node.body);
+ }
+ else {
+ // From within an async function you can return either a non-promise value or a promise. Any
+ // Promise/A+ compatible implementation will always assimilate any foreign promise, so we
+ // should not be checking assignability of a promise to the return type. Instead, we need to
+ // check assignability of the awaited type of the expression body against the promised type of
+ // its return type annotation.
+ var exprType = checkExpression(node.body);
+ if (returnType) {
+ if (isAsync) {
+ var awaitedType = checkAwaitedType(exprType, node.body, ts.Diagnostics.Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member);
+ checkTypeAssignableTo(awaitedType, promisedType, node.body);
+ }
+ else {
+ checkTypeAssignableTo(exprType, returnType, node.body);
+ }
+ }
+ checkFunctionAndClassExpressionBodies(node.body);
+ }
+ }
+ }
+ function checkArithmeticOperandType(operand, type, diagnostic) {
+ if (!isTypeAnyOrAllConstituentTypesHaveKind(type, 132 /* NumberLike */)) {
+ error(operand, diagnostic);
+ return false;
+ }
+ return true;
+ }
+ function checkReferenceExpression(n, invalidReferenceMessage, constantVariableMessage) {
+ function findSymbol(n) {
+ var symbol = getNodeLinks(n).resolvedSymbol;
+ // Because we got the symbol from the resolvedSymbol property, it might be of kind
+ // SymbolFlags.ExportValue. In this case it is necessary to get the actual export
+ // symbol, which will have the correct flags set on it.
+ return symbol && getExportSymbolOfValueSymbolIfExported(symbol);
+ }
+ function isReferenceOrErrorExpression(n) {
+ // TypeScript 1.0 spec (April 2014):
+ // Expressions are classified as values or references.
+ // References are the subset of expressions that are permitted as the target of an assignment.
+ // Specifically, references are combinations of identifiers(section 4.3), parentheses(section 4.7),
+ // and property accesses(section 4.10).
+ // All other expression constructs described in this chapter are classified as values.
+ switch (n.kind) {
+ case 69 /* Identifier */: {
+ var symbol = findSymbol(n);
+ // TypeScript 1.0 spec (April 2014): 4.3
+ // An identifier expression that references a variable or parameter is classified as a reference.
+ // An identifier expression that references any other kind of entity is classified as a value(and therefore cannot be the target of an assignment).
+ return !symbol || symbol === unknownSymbol || symbol === argumentsSymbol || (symbol.flags & 3 /* Variable */) !== 0;
+ }
+ case 166 /* PropertyAccessExpression */: {
+ var symbol = findSymbol(n);
+ // TypeScript 1.0 spec (April 2014): 4.10
+ // A property access expression is always classified as a reference.
+ // NOTE (not in spec): assignment to enum members should not be allowed
+ return !symbol || symbol === unknownSymbol || (symbol.flags & ~8 /* EnumMember */) !== 0;
+ }
+ case 167 /* ElementAccessExpression */:
+ // old compiler doesn't check indexed access
+ return true;
+ case 172 /* ParenthesizedExpression */:
+ return isReferenceOrErrorExpression(n.expression);
+ default:
+ return false;
+ }
+ }
+ function isConstVariableReference(n) {
+ switch (n.kind) {
+ case 69 /* Identifier */:
+ case 166 /* PropertyAccessExpression */: {
+ var symbol = findSymbol(n);
+ return symbol && (symbol.flags & 3 /* Variable */) !== 0 && (getDeclarationFlagsFromSymbol(symbol) & 32768 /* Const */) !== 0;
+ }
+ case 167 /* ElementAccessExpression */: {
+ var index = n.argumentExpression;
+ var symbol = findSymbol(n.expression);
+ if (symbol && index && index.kind === 9 /* StringLiteral */) {
+ var name_12 = index.text;
+ var prop = getPropertyOfType(getTypeOfSymbol(symbol), name_12);
+ return prop && (prop.flags & 3 /* Variable */) !== 0 && (getDeclarationFlagsFromSymbol(prop) & 32768 /* Const */) !== 0;
+ }
+ return false;
+ }
+ case 172 /* ParenthesizedExpression */:
+ return isConstVariableReference(n.expression);
+ default:
+ return false;
+ }
+ }
+ if (!isReferenceOrErrorExpression(n)) {
+ error(n, invalidReferenceMessage);
+ return false;
+ }
+ if (isConstVariableReference(n)) {
+ error(n, constantVariableMessage);
+ return false;
+ }
+ return true;
+ }
+ function checkDeleteExpression(node) {
+ checkExpression(node.expression);
+ return booleanType;
+ }
+ function checkTypeOfExpression(node) {
+ checkExpression(node.expression);
+ return stringType;
+ }
+ function checkVoidExpression(node) {
+ checkExpression(node.expression);
+ return undefinedType;
+ }
+ function checkAwaitExpression(node) {
+ // Grammar checking
+ if (produceDiagnostics) {
+ if (!(node.parserContextFlags & 8 /* Await */)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.await_expression_is_only_allowed_within_an_async_function);
+ }
+ if (isInParameterInitializerBeforeContainingFunction(node)) {
+ error(node, ts.Diagnostics.await_expressions_cannot_be_used_in_a_parameter_initializer);
+ }
+ }
+ var operandType = checkExpression(node.expression);
+ return checkAwaitedType(operandType, node);
+ }
+ function checkPrefixUnaryExpression(node) {
+ var operandType = checkExpression(node.operand);
+ switch (node.operator) {
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 50 /* TildeToken */:
+ if (someConstituentTypeHasKind(operandType, 16777216 /* ESSymbol */)) {
+ error(node.operand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(node.operator));
+ }
+ return numberType;
+ case 49 /* ExclamationToken */:
+ return booleanType;
+ case 41 /* PlusPlusToken */:
+ case 42 /* MinusMinusToken */:
+ var ok = checkArithmeticOperandType(node.operand, operandType, ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type);
+ if (ok) {
+ // run check only if former checks succeeded to avoid reporting cascading errors
+ checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_property_or_indexer, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_cannot_be_a_constant);
+ }
+ return numberType;
+ }
+ return unknownType;
+ }
+ function checkPostfixUnaryExpression(node) {
+ var operandType = checkExpression(node.operand);
+ var ok = checkArithmeticOperandType(node.operand, operandType, ts.Diagnostics.An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type);
+ if (ok) {
+ // run check only if former checks succeeded to avoid reporting cascading errors
+ checkReferenceExpression(node.operand, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_property_or_indexer, ts.Diagnostics.The_operand_of_an_increment_or_decrement_operator_cannot_be_a_constant);
+ }
+ return numberType;
+ }
+ // Just like isTypeOfKind below, except that it returns true if *any* constituent
+ // has this kind.
+ function someConstituentTypeHasKind(type, kind) {
+ if (type.flags & kind) {
+ return true;
+ }
+ if (type.flags & 49152 /* UnionOrIntersection */) {
+ var types = type.types;
+ for (var _i = 0; _i < types.length; _i++) {
+ var current = types[_i];
+ if (current.flags & kind) {
+ return true;
+ }
+ }
+ return false;
+ }
+ return false;
+ }
+ // Return true if type has the given flags, or is a union or intersection type composed of types that all have those flags.
+ function allConstituentTypesHaveKind(type, kind) {
+ if (type.flags & kind) {
+ return true;
+ }
+ if (type.flags & 49152 /* UnionOrIntersection */) {
+ var types = type.types;
+ for (var _i = 0; _i < types.length; _i++) {
+ var current = types[_i];
+ if (!(current.flags & kind)) {
+ return false;
+ }
+ }
+ return true;
+ }
+ return false;
+ }
+ function isConstEnumObjectType(type) {
+ return type.flags & (80896 /* ObjectType */ | 65536 /* Anonymous */) && type.symbol && isConstEnumSymbol(type.symbol);
+ }
+ function isConstEnumSymbol(symbol) {
+ return (symbol.flags & 128 /* ConstEnum */) !== 0;
+ }
+ function checkInstanceOfExpression(left, right, leftType, rightType) {
+ // TypeScript 1.0 spec (April 2014): 4.15.4
+ // The instanceof operator requires the left operand to be of type Any, an object type, or a type parameter type,
+ // and the right operand to be of type Any or a subtype of the 'Function' interface type.
+ // The result is always of the Boolean primitive type.
+ // NOTE: do not raise error if leftType is unknown as related error was already reported
+ if (allConstituentTypesHaveKind(leftType, 16777726 /* Primitive */)) {
+ error(left, ts.Diagnostics.The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
+ }
+ // NOTE: do not raise error if right is unknown as related error was already reported
+ if (!(isTypeAny(rightType) || isTypeSubtypeOf(rightType, globalFunctionType))) {
+ error(right, ts.Diagnostics.The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type);
+ }
+ return booleanType;
+ }
+ function checkInExpression(left, right, leftType, rightType) {
+ // TypeScript 1.0 spec (April 2014): 4.15.5
+ // The in operator requires the left operand to be of type Any, the String primitive type, or the Number primitive type,
+ // and the right operand to be of type Any, an object type, or a type parameter type.
+ // The result is always of the Boolean primitive type.
+ if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 258 /* StringLike */ | 132 /* NumberLike */ | 16777216 /* ESSymbol */)) {
+ error(left, ts.Diagnostics.The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol);
+ }
+ if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 80896 /* ObjectType */ | 512 /* TypeParameter */)) {
+ error(right, ts.Diagnostics.The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter);
+ }
+ return booleanType;
+ }
+ function checkObjectLiteralAssignment(node, sourceType, contextualMapper) {
+ var properties = node.properties;
+ for (var _i = 0; _i < properties.length; _i++) {
+ var p = properties[_i];
+ if (p.kind === 245 /* PropertyAssignment */ || p.kind === 246 /* ShorthandPropertyAssignment */) {
+ // TODO(andersh): Computed property support
+ var name_13 = p.name;
+ var type = isTypeAny(sourceType)
+ ? sourceType
+ : getTypeOfPropertyOfType(sourceType, name_13.text) ||
+ isNumericLiteralName(name_13.text) && getIndexTypeOfType(sourceType, 1 /* Number */) ||
+ getIndexTypeOfType(sourceType, 0 /* String */);
+ if (type) {
+ if (p.kind === 246 /* ShorthandPropertyAssignment */) {
+ checkDestructuringAssignment(p, type);
+ }
+ else {
+ checkDestructuringAssignment(p.initializer || name_13, type);
+ }
+ }
+ else {
+ error(name_13, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(sourceType), ts.declarationNameToString(name_13));
+ }
+ }
+ else {
+ error(p, ts.Diagnostics.Property_assignment_expected);
+ }
+ }
+ return sourceType;
+ }
+ function checkArrayLiteralAssignment(node, sourceType, contextualMapper) {
+ // This elementType will be used if the specific property corresponding to this index is not
+ // present (aka the tuple element property). This call also checks that the parentType is in
+ // fact an iterable or array (depending on target language).
+ var elementType = checkIteratedTypeOrElementType(sourceType, node, /*allowStringInput*/ false) || unknownType;
+ var elements = node.elements;
+ for (var i = 0; i < elements.length; i++) {
+ var e = elements[i];
+ if (e.kind !== 187 /* OmittedExpression */) {
+ if (e.kind !== 185 /* SpreadElementExpression */) {
+ var propName = "" + i;
+ var type = isTypeAny(sourceType)
+ ? sourceType
+ : isTupleLikeType(sourceType)
+ ? getTypeOfPropertyOfType(sourceType, propName)
+ : elementType;
+ if (type) {
+ checkDestructuringAssignment(e, type, contextualMapper);
+ }
+ else {
+ if (isTupleType(sourceType)) {
+ error(e, ts.Diagnostics.Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2, typeToString(sourceType), sourceType.elementTypes.length, elements.length);
+ }
+ else {
+ error(e, ts.Diagnostics.Type_0_has_no_property_1, typeToString(sourceType), propName);
+ }
+ }
+ }
+ else {
+ if (i < elements.length - 1) {
+ error(e, ts.Diagnostics.A_rest_element_must_be_last_in_an_array_destructuring_pattern);
+ }
+ else {
+ var restExpression = e.expression;
+ if (restExpression.kind === 181 /* BinaryExpression */ && restExpression.operatorToken.kind === 56 /* EqualsToken */) {
+ error(restExpression.operatorToken, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
+ }
+ else {
+ checkDestructuringAssignment(restExpression, createArrayType(elementType), contextualMapper);
+ }
+ }
+ }
+ }
+ }
+ return sourceType;
+ }
+ function checkDestructuringAssignment(exprOrAssignment, sourceType, contextualMapper) {
+ var target;
+ if (exprOrAssignment.kind === 246 /* ShorthandPropertyAssignment */) {
+ var prop = exprOrAssignment;
+ if (prop.objectAssignmentInitializer) {
+ checkBinaryLikeExpression(prop.name, prop.equalsToken, prop.objectAssignmentInitializer, contextualMapper);
+ }
+ target = exprOrAssignment.name;
+ }
+ else {
+ target = exprOrAssignment;
+ }
+ if (target.kind === 181 /* BinaryExpression */ && target.operatorToken.kind === 56 /* EqualsToken */) {
+ checkBinaryExpression(target, contextualMapper);
+ target = target.left;
+ }
+ if (target.kind === 165 /* ObjectLiteralExpression */) {
+ return checkObjectLiteralAssignment(target, sourceType, contextualMapper);
+ }
+ if (target.kind === 164 /* ArrayLiteralExpression */) {
+ return checkArrayLiteralAssignment(target, sourceType, contextualMapper);
+ }
+ return checkReferenceAssignment(target, sourceType, contextualMapper);
+ }
+ function checkReferenceAssignment(target, sourceType, contextualMapper) {
+ var targetType = checkExpression(target, contextualMapper);
+ if (checkReferenceExpression(target, ts.Diagnostics.Invalid_left_hand_side_of_assignment_expression, ts.Diagnostics.Left_hand_side_of_assignment_expression_cannot_be_a_constant)) {
+ checkTypeAssignableTo(sourceType, targetType, target, /*headMessage*/ undefined);
+ }
+ return sourceType;
+ }
+ function checkBinaryExpression(node, contextualMapper) {
+ return checkBinaryLikeExpression(node.left, node.operatorToken, node.right, contextualMapper, node);
+ }
+ function checkBinaryLikeExpression(left, operatorToken, right, contextualMapper, errorNode) {
+ var operator = operatorToken.kind;
+ if (operator === 56 /* EqualsToken */ && (left.kind === 165 /* ObjectLiteralExpression */ || left.kind === 164 /* ArrayLiteralExpression */)) {
+ return checkDestructuringAssignment(left, checkExpression(right, contextualMapper), contextualMapper);
+ }
+ var leftType = checkExpression(left, contextualMapper);
+ var rightType = checkExpression(right, contextualMapper);
+ switch (operator) {
+ case 37 /* AsteriskToken */:
+ case 38 /* AsteriskAsteriskToken */:
+ case 59 /* AsteriskEqualsToken */:
+ case 60 /* AsteriskAsteriskEqualsToken */:
+ case 39 /* SlashToken */:
+ case 61 /* SlashEqualsToken */:
+ case 40 /* PercentToken */:
+ case 62 /* PercentEqualsToken */:
+ case 36 /* MinusToken */:
+ case 58 /* MinusEqualsToken */:
+ case 43 /* LessThanLessThanToken */:
+ case 63 /* LessThanLessThanEqualsToken */:
+ case 44 /* GreaterThanGreaterThanToken */:
+ case 64 /* GreaterThanGreaterThanEqualsToken */:
+ case 45 /* GreaterThanGreaterThanGreaterThanToken */:
+ case 65 /* GreaterThanGreaterThanGreaterThanEqualsToken */:
+ case 47 /* BarToken */:
+ case 67 /* BarEqualsToken */:
+ case 48 /* CaretToken */:
+ case 68 /* CaretEqualsToken */:
+ case 46 /* AmpersandToken */:
+ case 66 /* AmpersandEqualsToken */:
+ // TypeScript 1.0 spec (April 2014): 4.19.1
+ // These operators require their operands to be of type Any, the Number primitive type,
+ // or an enum type. Operands of an enum type are treated
+ // as having the primitive type Number. If one operand is the null or undefined value,
+ // it is treated as having the type of the other operand.
+ // The result is always of the Number primitive type.
+ if (leftType.flags & (32 /* Undefined */ | 64 /* Null */))
+ leftType = rightType;
+ if (rightType.flags & (32 /* Undefined */ | 64 /* Null */))
+ rightType = leftType;
+ var suggestedOperator;
+ // if a user tries to apply a bitwise operator to 2 boolean operands
+ // try and return them a helpful suggestion
+ if ((leftType.flags & 8 /* Boolean */) &&
+ (rightType.flags & 8 /* Boolean */) &&
+ (suggestedOperator = getSuggestedBooleanOperator(operatorToken.kind)) !== undefined) {
+ error(errorNode || operatorToken, ts.Diagnostics.The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead, ts.tokenToString(operatorToken.kind), ts.tokenToString(suggestedOperator));
+ }
+ else {
+ // otherwise just check each operand separately and report errors as normal
+ var leftOk = checkArithmeticOperandType(left, leftType, ts.Diagnostics.The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type);
+ var rightOk = checkArithmeticOperandType(right, rightType, ts.Diagnostics.The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type);
+ if (leftOk && rightOk) {
+ checkAssignmentOperator(numberType);
+ }
+ }
+ return numberType;
+ case 35 /* PlusToken */:
+ case 57 /* PlusEqualsToken */:
+ // TypeScript 1.0 spec (April 2014): 4.19.2
+ // The binary + operator requires both operands to be of the Number primitive type or an enum type,
+ // or at least one of the operands to be of type Any or the String primitive type.
+ // If one operand is the null or undefined value, it is treated as having the type of the other operand.
+ if (leftType.flags & (32 /* Undefined */ | 64 /* Null */))
+ leftType = rightType;
+ if (rightType.flags & (32 /* Undefined */ | 64 /* Null */))
+ rightType = leftType;
+ var resultType;
+ if (allConstituentTypesHaveKind(leftType, 132 /* NumberLike */) && allConstituentTypesHaveKind(rightType, 132 /* NumberLike */)) {
+ // Operands of an enum type are treated as having the primitive type Number.
+ // If both operands are of the Number primitive type, the result is of the Number primitive type.
+ resultType = numberType;
+ }
+ else {
+ if (allConstituentTypesHaveKind(leftType, 258 /* StringLike */) || allConstituentTypesHaveKind(rightType, 258 /* StringLike */)) {
+ // If one or both operands are of the String primitive type, the result is of the String primitive type.
+ resultType = stringType;
+ }
+ else if (isTypeAny(leftType) || isTypeAny(rightType)) {
+ // Otherwise, the result is of type Any.
+ // NOTE: unknown type here denotes error type. Old compiler treated this case as any type so do we.
+ resultType = leftType === unknownType || rightType === unknownType ? unknownType : anyType;
+ }
+ // Symbols are not allowed at all in arithmetic expressions
+ if (resultType && !checkForDisallowedESSymbolOperand(operator)) {
+ return resultType;
+ }
+ }
+ if (!resultType) {
+ reportOperatorError();
+ return anyType;
+ }
+ if (operator === 57 /* PlusEqualsToken */) {
+ checkAssignmentOperator(resultType);
+ }
+ return resultType;
+ case 25 /* LessThanToken */:
+ case 27 /* GreaterThanToken */:
+ case 28 /* LessThanEqualsToken */:
+ case 29 /* GreaterThanEqualsToken */:
+ if (!checkForDisallowedESSymbolOperand(operator)) {
+ return booleanType;
+ }
+ // Fall through
+ case 30 /* EqualsEqualsToken */:
+ case 31 /* ExclamationEqualsToken */:
+ case 32 /* EqualsEqualsEqualsToken */:
+ case 33 /* ExclamationEqualsEqualsToken */:
+ if (!isTypeAssignableTo(leftType, rightType) && !isTypeAssignableTo(rightType, leftType)) {
+ reportOperatorError();
+ }
+ return booleanType;
+ case 91 /* InstanceOfKeyword */:
+ return checkInstanceOfExpression(left, right, leftType, rightType);
+ case 90 /* InKeyword */:
+ return checkInExpression(left, right, leftType, rightType);
+ case 51 /* AmpersandAmpersandToken */:
+ return rightType;
+ case 52 /* BarBarToken */:
+ return getUnionType([leftType, rightType]);
+ case 56 /* EqualsToken */:
+ checkAssignmentOperator(rightType);
+ return getRegularTypeOfObjectLiteral(rightType);
+ case 24 /* CommaToken */:
+ return rightType;
+ }
+ // Return true if there was no error, false if there was an error.
+ function checkForDisallowedESSymbolOperand(operator) {
+ var offendingSymbolOperand = someConstituentTypeHasKind(leftType, 16777216 /* ESSymbol */) ? left :
+ someConstituentTypeHasKind(rightType, 16777216 /* ESSymbol */) ? right :
+ undefined;
+ if (offendingSymbolOperand) {
+ error(offendingSymbolOperand, ts.Diagnostics.The_0_operator_cannot_be_applied_to_type_symbol, ts.tokenToString(operator));
+ return false;
+ }
+ return true;
+ }
+ function getSuggestedBooleanOperator(operator) {
+ switch (operator) {
+ case 47 /* BarToken */:
+ case 67 /* BarEqualsToken */:
+ return 52 /* BarBarToken */;
+ case 48 /* CaretToken */:
+ case 68 /* CaretEqualsToken */:
+ return 33 /* ExclamationEqualsEqualsToken */;
+ case 46 /* AmpersandToken */:
+ case 66 /* AmpersandEqualsToken */:
+ return 51 /* AmpersandAmpersandToken */;
+ default:
+ return undefined;
+ }
+ }
+ function checkAssignmentOperator(valueType) {
+ if (produceDiagnostics && operator >= 56 /* FirstAssignment */ && operator <= 68 /* LastAssignment */) {
+ // TypeScript 1.0 spec (April 2014): 4.17
+ // An assignment of the form
+ // VarExpr = ValueExpr
+ // requires VarExpr to be classified as a reference
+ // A compound assignment furthermore requires VarExpr to be classified as a reference (section 4.1)
+ // and the type of the non - compound operation to be assignable to the type of VarExpr.
+ var ok = checkReferenceExpression(left, ts.Diagnostics.Invalid_left_hand_side_of_assignment_expression, ts.Diagnostics.Left_hand_side_of_assignment_expression_cannot_be_a_constant);
+ // Use default messages
+ if (ok) {
+ // to avoid cascading errors check assignability only if 'isReference' check succeeded and no errors were reported
+ checkTypeAssignableTo(valueType, leftType, left, /*headMessage*/ undefined);
+ }
+ }
+ }
+ function reportOperatorError() {
+ error(errorNode || operatorToken, ts.Diagnostics.Operator_0_cannot_be_applied_to_types_1_and_2, ts.tokenToString(operatorToken.kind), typeToString(leftType), typeToString(rightType));
+ }
+ }
+ function isYieldExpressionInClass(node) {
+ var current = node;
+ var parent = node.parent;
+ while (parent) {
+ if (ts.isFunctionLike(parent) && current === parent.body) {
+ return false;
+ }
+ else if (ts.isClassLike(current)) {
+ return true;
+ }
+ current = parent;
+ parent = parent.parent;
+ }
+ return false;
+ }
+ function checkYieldExpression(node) {
+ // Grammar checking
+ if (produceDiagnostics) {
+ if (!(node.parserContextFlags & 2 /* Yield */) || isYieldExpressionInClass(node)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.A_yield_expression_is_only_allowed_in_a_generator_body);
+ }
+ if (isInParameterInitializerBeforeContainingFunction(node)) {
+ error(node, ts.Diagnostics.yield_expressions_cannot_be_used_in_a_parameter_initializer);
+ }
+ }
+ if (node.expression) {
+ var func = ts.getContainingFunction(node);
+ // If the user's code is syntactically correct, the func should always have a star. After all,
+ // we are in a yield context.
+ if (func && func.asteriskToken) {
+ var expressionType = checkExpressionCached(node.expression, /*contextualMapper*/ undefined);
+ var expressionElementType;
+ var nodeIsYieldStar = !!node.asteriskToken;
+ if (nodeIsYieldStar) {
+ expressionElementType = checkElementTypeOfIterable(expressionType, node.expression);
+ }
+ // There is no point in doing an assignability check if the function
+ // has no explicit return type because the return type is directly computed
+ // from the yield expressions.
+ if (func.type) {
+ var signatureElementType = getElementTypeOfIterableIterator(getTypeFromTypeNode(func.type)) || anyType;
+ if (nodeIsYieldStar) {
+ checkTypeAssignableTo(expressionElementType, signatureElementType, node.expression, /*headMessage*/ undefined);
+ }
+ else {
+ checkTypeAssignableTo(expressionType, signatureElementType, node.expression, /*headMessage*/ undefined);
+ }
+ }
+ }
+ }
+ // Both yield and yield* expressions have type 'any'
+ return anyType;
+ }
+ function checkConditionalExpression(node, contextualMapper) {
+ checkExpression(node.condition);
+ var type1 = checkExpression(node.whenTrue, contextualMapper);
+ var type2 = checkExpression(node.whenFalse, contextualMapper);
+ return getUnionType([type1, type2]);
+ }
+ function checkTemplateExpression(node) {
+ // We just want to check each expressions, but we are unconcerned with
+ // the type of each expression, as any value may be coerced into a string.
+ // It is worth asking whether this is what we really want though.
+ // A place where we actually *are* concerned with the expressions' types are
+ // in tagged templates.
+ ts.forEach(node.templateSpans, function (templateSpan) {
+ checkExpression(templateSpan.expression);
+ });
+ return stringType;
+ }
+ function checkExpressionWithContextualType(node, contextualType, contextualMapper) {
+ var saveContextualType = node.contextualType;
+ node.contextualType = contextualType;
+ var result = checkExpression(node, contextualMapper);
+ node.contextualType = saveContextualType;
+ return result;
+ }
+ function checkExpressionCached(node, contextualMapper) {
+ var links = getNodeLinks(node);
+ if (!links.resolvedType) {
+ links.resolvedType = checkExpression(node, contextualMapper);
+ }
+ return links.resolvedType;
+ }
+ function checkPropertyAssignment(node, contextualMapper) {
+ // Do not use hasDynamicName here, because that returns false for well known symbols.
+ // We want to perform checkComputedPropertyName for all computed properties, including
+ // well known symbols.
+ if (node.name.kind === 136 /* ComputedPropertyName */) {
+ checkComputedPropertyName(node.name);
+ }
+ return checkExpression(node.initializer, contextualMapper);
+ }
+ function checkObjectLiteralMethod(node, contextualMapper) {
+ // Grammar checking
+ checkGrammarMethod(node);
+ // Do not use hasDynamicName here, because that returns false for well known symbols.
+ // We want to perform checkComputedPropertyName for all computed properties, including
+ // well known symbols.
+ if (node.name.kind === 136 /* ComputedPropertyName */) {
+ checkComputedPropertyName(node.name);
+ }
+ var uninstantiatedType = checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper);
+ return instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, contextualMapper);
+ }
+ function instantiateTypeWithSingleGenericCallSignature(node, type, contextualMapper) {
+ if (isInferentialContext(contextualMapper)) {
+ var signature = getSingleCallSignature(type);
+ if (signature && signature.typeParameters) {
+ var contextualType = getContextualType(node);
+ if (contextualType) {
+ var contextualSignature = getSingleCallSignature(contextualType);
+ if (contextualSignature && !contextualSignature.typeParameters) {
+ return getOrCreateTypeFromSignature(instantiateSignatureInContextOf(signature, contextualSignature, contextualMapper));
+ }
+ }
+ }
+ }
+ return type;
+ }
+ // Checks an expression and returns its type. The contextualMapper parameter serves two purposes: When
+ // contextualMapper is not undefined and not equal to the identityMapper function object it indicates that the
+ // expression is being inferentially typed (section 4.12.2 in spec) and provides the type mapper to use in
+ // conjunction with the generic contextual type. When contextualMapper is equal to the identityMapper function
+ // object, it serves as an indicator that all contained function and arrow expressions should be considered to
+ // have the wildcard function type; this form of type check is used during overload resolution to exclude
+ // contextually typed function and arrow expressions in the initial phase.
+ function checkExpression(node, contextualMapper) {
+ var type;
+ if (node.kind === 135 /* QualifiedName */) {
+ type = checkQualifiedName(node);
+ }
+ else {
+ var uninstantiatedType = checkExpressionWorker(node, contextualMapper);
+ type = instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, contextualMapper);
+ }
+ if (isConstEnumObjectType(type)) {
+ // enum object type for const enums are only permitted in:
+ // - 'left' in property access
+ // - 'object' in indexed access
+ // - target in rhs of import statement
+ var ok = (node.parent.kind === 166 /* PropertyAccessExpression */ && node.parent.expression === node) ||
+ (node.parent.kind === 167 /* ElementAccessExpression */ && node.parent.expression === node) ||
+ ((node.kind === 69 /* Identifier */ || node.kind === 135 /* QualifiedName */) && isInRightSideOfImportOrExportAssignment(node));
+ if (!ok) {
+ error(node, ts.Diagnostics.const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment);
+ }
+ }
+ return type;
+ }
+ function checkNumericLiteral(node) {
+ // Grammar checking
+ checkGrammarNumericLiteral(node);
+ return numberType;
+ }
+ function checkExpressionWorker(node, contextualMapper) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ return checkIdentifier(node);
+ case 97 /* ThisKeyword */:
+ return checkThisExpression(node);
+ case 95 /* SuperKeyword */:
+ return checkSuperExpression(node);
+ case 93 /* NullKeyword */:
+ return nullType;
+ case 99 /* TrueKeyword */:
+ case 84 /* FalseKeyword */:
+ return booleanType;
+ case 8 /* NumericLiteral */:
+ return checkNumericLiteral(node);
+ case 183 /* TemplateExpression */:
+ return checkTemplateExpression(node);
+ case 9 /* StringLiteral */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ return stringType;
+ case 10 /* RegularExpressionLiteral */:
+ return globalRegExpType;
+ case 164 /* ArrayLiteralExpression */:
+ return checkArrayLiteral(node, contextualMapper);
+ case 165 /* ObjectLiteralExpression */:
+ return checkObjectLiteral(node, contextualMapper);
+ case 166 /* PropertyAccessExpression */:
+ return checkPropertyAccessExpression(node);
+ case 167 /* ElementAccessExpression */:
+ return checkIndexedAccess(node);
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ return checkCallExpression(node);
+ case 170 /* TaggedTemplateExpression */:
+ return checkTaggedTemplateExpression(node);
+ case 172 /* ParenthesizedExpression */:
+ return checkExpression(node.expression, contextualMapper);
+ case 186 /* ClassExpression */:
+ return checkClassExpression(node);
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return checkFunctionExpressionOrObjectLiteralMethod(node, contextualMapper);
+ case 176 /* TypeOfExpression */:
+ return checkTypeOfExpression(node);
+ case 171 /* TypeAssertionExpression */:
+ case 189 /* AsExpression */:
+ return checkAssertion(node);
+ case 175 /* DeleteExpression */:
+ return checkDeleteExpression(node);
+ case 177 /* VoidExpression */:
+ return checkVoidExpression(node);
+ case 178 /* AwaitExpression */:
+ return checkAwaitExpression(node);
+ case 179 /* PrefixUnaryExpression */:
+ return checkPrefixUnaryExpression(node);
+ case 180 /* PostfixUnaryExpression */:
+ return checkPostfixUnaryExpression(node);
+ case 181 /* BinaryExpression */:
+ return checkBinaryExpression(node, contextualMapper);
+ case 182 /* ConditionalExpression */:
+ return checkConditionalExpression(node, contextualMapper);
+ case 185 /* SpreadElementExpression */:
+ return checkSpreadElementExpression(node, contextualMapper);
+ case 187 /* OmittedExpression */:
+ return undefinedType;
+ case 184 /* YieldExpression */:
+ return checkYieldExpression(node);
+ case 240 /* JsxExpression */:
+ return checkJsxExpression(node);
+ case 233 /* JsxElement */:
+ return checkJsxElement(node);
+ case 234 /* JsxSelfClosingElement */:
+ return checkJsxSelfClosingElement(node);
+ case 235 /* JsxOpeningElement */:
+ ts.Debug.fail("Shouldn't ever directly check a JsxOpeningElement");
+ }
+ return unknownType;
+ }
+ // DECLARATION AND STATEMENT TYPE CHECKING
+ function checkTypeParameter(node) {
+ // Grammar Checking
+ if (node.expression) {
+ grammarErrorOnFirstToken(node.expression, ts.Diagnostics.Type_expected);
+ }
+ checkSourceElement(node.constraint);
+ if (produceDiagnostics) {
+ checkTypeParameterHasIllegalReferencesInConstraint(node);
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_parameter_name_cannot_be_0);
+ }
+ // TODO: Check multiple declarations are identical
+ }
+ function checkParameter(node) {
+ // Grammar checking
+ // It is a SyntaxError if the Identifier "eval" or the Identifier "arguments" occurs as the
+ // Identifier in a PropertySetParameterList of a PropertyAssignment that is contained in strict code
+ // or if its FunctionBody is strict code(11.1.5).
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node);
+ checkVariableLikeDeclaration(node);
+ var func = ts.getContainingFunction(node);
+ if (node.flags & 112 /* AccessibilityModifier */) {
+ func = ts.getContainingFunction(node);
+ if (!(func.kind === 144 /* Constructor */ && ts.nodeIsPresent(func.body))) {
+ error(node, ts.Diagnostics.A_parameter_property_is_only_allowed_in_a_constructor_implementation);
+ }
+ }
+ if (node.questionToken && ts.isBindingPattern(node.name) && func.body) {
+ error(node, ts.Diagnostics.A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature);
+ }
+ // Only check rest parameter type if it's not a binding pattern. Since binding patterns are
+ // not allowed in a rest parameter, we already have an error from checkGrammarParameterList.
+ if (node.dotDotDotToken && !ts.isBindingPattern(node.name) && !isArrayType(getTypeOfSymbol(node.symbol))) {
+ error(node, ts.Diagnostics.A_rest_parameter_must_be_of_an_array_type);
+ }
+ }
+ function isSyntacticallyValidGenerator(node) {
+ if (!node.asteriskToken || !node.body) {
+ return false;
+ }
+ return node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 213 /* FunctionDeclaration */ ||
+ node.kind === 173 /* FunctionExpression */;
+ }
+ function getTypePredicateParameterIndex(parameterList, parameter) {
+ if (parameterList) {
+ for (var i = 0; i < parameterList.length; i++) {
+ var param = parameterList[i];
+ if (param.name.kind === 69 /* Identifier */ &&
+ param.name.text === parameter.text) {
+ return i;
+ }
+ }
+ }
+ return -1;
+ }
+ function isInLegalTypePredicatePosition(node) {
+ switch (node.parent.kind) {
+ case 174 /* ArrowFunction */:
+ case 147 /* CallSignature */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 152 /* FunctionType */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return node === node.parent.type;
+ }
+ return false;
+ }
+ function checkSignatureDeclaration(node) {
+ // Grammar checking
+ if (node.kind === 149 /* IndexSignature */) {
+ checkGrammarIndexSignature(node);
+ }
+ else if (node.kind === 152 /* FunctionType */ || node.kind === 213 /* FunctionDeclaration */ || node.kind === 153 /* ConstructorType */ ||
+ node.kind === 147 /* CallSignature */ || node.kind === 144 /* Constructor */ ||
+ node.kind === 148 /* ConstructSignature */) {
+ checkGrammarFunctionLikeDeclaration(node);
+ }
+ checkTypeParameters(node.typeParameters);
+ ts.forEach(node.parameters, checkParameter);
+ if (node.type) {
+ if (node.type.kind === 150 /* TypePredicate */) {
+ var typePredicate = getSignatureFromDeclaration(node).typePredicate;
+ var typePredicateNode = node.type;
+ if (isInLegalTypePredicatePosition(typePredicateNode)) {
+ if (typePredicate.parameterIndex >= 0) {
+ if (node.parameters[typePredicate.parameterIndex].dotDotDotToken) {
+ error(typePredicateNode.parameterName, ts.Diagnostics.A_type_predicate_cannot_reference_a_rest_parameter);
+ }
+ else {
+ checkTypeAssignableTo(typePredicate.type, getTypeOfNode(node.parameters[typePredicate.parameterIndex]), typePredicateNode.type);
+ }
+ }
+ else if (typePredicateNode.parameterName) {
+ var hasReportedError = false;
+ for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+ var param = _a[_i];
+ if (hasReportedError) {
+ break;
+ }
+ if (param.name.kind === 161 /* ObjectBindingPattern */ ||
+ param.name.kind === 162 /* ArrayBindingPattern */) {
+ (function checkBindingPattern(pattern) {
+ for (var _i = 0, _a = pattern.elements; _i < _a.length; _i++) {
+ var element = _a[_i];
+ if (element.name.kind === 69 /* Identifier */ &&
+ element.name.text === typePredicate.parameterName) {
+ error(typePredicateNode.parameterName, ts.Diagnostics.A_type_predicate_cannot_reference_element_0_in_a_binding_pattern, typePredicate.parameterName);
+ hasReportedError = true;
+ break;
+ }
+ else if (element.name.kind === 162 /* ArrayBindingPattern */ ||
+ element.name.kind === 161 /* ObjectBindingPattern */) {
+ checkBindingPattern(element.name);
+ }
+ }
+ })(param.name);
+ }
+ }
+ if (!hasReportedError) {
+ error(typePredicateNode.parameterName, ts.Diagnostics.Cannot_find_parameter_0, typePredicate.parameterName);
+ }
+ }
+ }
+ else {
+ error(typePredicateNode, ts.Diagnostics.A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods);
+ }
+ }
+ else {
+ checkSourceElement(node.type);
+ }
+ }
+ if (produceDiagnostics) {
+ checkCollisionWithArgumentsInGeneratedCode(node);
+ if (compilerOptions.noImplicitAny && !node.type) {
+ switch (node.kind) {
+ case 148 /* ConstructSignature */:
+ error(node, ts.Diagnostics.Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
+ break;
+ case 147 /* CallSignature */:
+ error(node, ts.Diagnostics.Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type);
+ break;
+ }
+ }
+ if (node.type) {
+ if (languageVersion >= 2 /* ES6 */ && isSyntacticallyValidGenerator(node)) {
+ var returnType = getTypeFromTypeNode(node.type);
+ if (returnType === voidType) {
+ error(node.type, ts.Diagnostics.A_generator_cannot_have_a_void_type_annotation);
+ }
+ else {
+ var generatorElementType = getElementTypeOfIterableIterator(returnType) || anyType;
+ var iterableIteratorInstantiation = createIterableIteratorType(generatorElementType);
+ // Naively, one could check that IterableIterator<any> is assignable to the return type annotation.
+ // However, that would not catch the error in the following case.
+ //
+ // interface BadGenerator extends Iterable<number>, Iterator<string> { }
+ // function* g(): BadGenerator { } // Iterable and Iterator have different types!
+ //
+ checkTypeAssignableTo(iterableIteratorInstantiation, returnType, node.type);
+ }
+ }
+ }
+ }
+ checkSpecializedSignatureDeclaration(node);
+ }
+ function checkTypeForDuplicateIndexSignatures(node) {
+ if (node.kind === 215 /* InterfaceDeclaration */) {
+ var nodeSymbol = getSymbolOfNode(node);
+ // in case of merging interface declaration it is possible that we'll enter this check procedure several times for every declaration
+ // to prevent this run check only for the first declaration of a given kind
+ if (nodeSymbol.declarations.length > 0 && nodeSymbol.declarations[0] !== node) {
+ return;
+ }
+ }
+ // TypeScript 1.0 spec (April 2014)
+ // 3.7.4: An object type can contain at most one string index signature and one numeric index signature.
+ // 8.5: A class declaration can have at most one string index member declaration and one numeric index member declaration
+ var indexSymbol = getIndexSymbol(getSymbolOfNode(node));
+ if (indexSymbol) {
+ var seenNumericIndexer = false;
+ var seenStringIndexer = false;
+ for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
+ var decl = _a[_i];
+ var declaration = decl;
+ if (declaration.parameters.length === 1 && declaration.parameters[0].type) {
+ switch (declaration.parameters[0].type.kind) {
+ case 130 /* StringKeyword */:
+ if (!seenStringIndexer) {
+ seenStringIndexer = true;
+ }
+ else {
+ error(declaration, ts.Diagnostics.Duplicate_string_index_signature);
+ }
+ break;
+ case 128 /* NumberKeyword */:
+ if (!seenNumericIndexer) {
+ seenNumericIndexer = true;
+ }
+ else {
+ error(declaration, ts.Diagnostics.Duplicate_number_index_signature);
+ }
+ break;
+ }
+ }
+ }
+ }
+ }
+ function checkPropertyDeclaration(node) {
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarProperty(node) || checkGrammarComputedPropertyName(node.name);
+ checkVariableLikeDeclaration(node);
+ }
+ function checkMethodDeclaration(node) {
+ // Grammar checking
+ checkGrammarMethod(node) || checkGrammarComputedPropertyName(node.name);
+ // Grammar checking for modifiers is done inside the function checkGrammarFunctionLikeDeclaration
+ checkFunctionLikeDeclaration(node);
+ // Abstract methods cannot have an implementation.
+ // Extra checks are to avoid reporting multiple errors relating to the "abstractness" of the node.
+ if (node.flags & 256 /* Abstract */ && node.body) {
+ error(node, ts.Diagnostics.Method_0_cannot_have_an_implementation_because_it_is_marked_abstract, ts.declarationNameToString(node.name));
+ }
+ }
+ function checkConstructorDeclaration(node) {
+ // Grammar check on signature of constructor and modifier of the constructor is done in checkSignatureDeclaration function.
+ checkSignatureDeclaration(node);
+ // Grammar check for checking only related to constructoDeclaration
+ checkGrammarConstructorTypeParameters(node) || checkGrammarConstructorTypeAnnotation(node);
+ checkSourceElement(node.body);
+ var symbol = getSymbolOfNode(node);
+ var firstDeclaration = ts.getDeclarationOfKind(symbol, node.kind);
+ // Only type check the symbol once
+ if (node === firstDeclaration) {
+ checkFunctionOrConstructorSymbol(symbol);
+ }
+ // exit early in the case of signature - super checks are not relevant to them
+ if (ts.nodeIsMissing(node.body)) {
+ return;
+ }
+ if (!produceDiagnostics) {
+ return;
+ }
+ function isSuperCallExpression(n) {
+ return n.kind === 168 /* CallExpression */ && n.expression.kind === 95 /* SuperKeyword */;
+ }
+ function containsSuperCallAsComputedPropertyName(n) {
+ return n.name && containsSuperCall(n.name);
+ }
+ function containsSuperCall(n) {
+ if (isSuperCallExpression(n)) {
+ return true;
+ }
+ else if (ts.isFunctionLike(n)) {
+ return false;
+ }
+ else if (ts.isClassLike(n)) {
+ return ts.forEach(n.members, containsSuperCallAsComputedPropertyName);
+ }
+ return ts.forEachChild(n, containsSuperCall);
+ }
+ function markThisReferencesAsErrors(n) {
+ if (n.kind === 97 /* ThisKeyword */) {
+ error(n, ts.Diagnostics.this_cannot_be_referenced_in_current_location);
+ }
+ else if (n.kind !== 173 /* FunctionExpression */ && n.kind !== 213 /* FunctionDeclaration */) {
+ ts.forEachChild(n, markThisReferencesAsErrors);
+ }
+ }
+ function isInstancePropertyWithInitializer(n) {
+ return n.kind === 141 /* PropertyDeclaration */ &&
+ !(n.flags & 128 /* Static */) &&
+ !!n.initializer;
+ }
+ // TS 1.0 spec (April 2014): 8.3.2
+ // Constructors of classes with no extends clause may not contain super calls, whereas
+ // constructors of derived classes must contain at least one super call somewhere in their function body.
+ var containingClassDecl = node.parent;
+ if (ts.getClassExtendsHeritageClauseElement(containingClassDecl)) {
+ var containingClassSymbol = getSymbolOfNode(containingClassDecl);
+ var containingClassInstanceType = getDeclaredTypeOfSymbol(containingClassSymbol);
+ var baseConstructorType = getBaseConstructorTypeOfClass(containingClassInstanceType);
+ if (containsSuperCall(node.body)) {
+ if (baseConstructorType === nullType) {
+ error(node, ts.Diagnostics.A_constructor_cannot_contain_a_super_call_when_its_class_extends_null);
+ }
+ // The first statement in the body of a constructor (excluding prologue directives) must be a super call
+ // if both of the following are true:
+ // - The containing class is a derived class.
+ // - The constructor declares parameter properties
+ // or the containing class declares instance member variables with initializers.
+ var superCallShouldBeFirst = ts.forEach(node.parent.members, isInstancePropertyWithInitializer) ||
+ ts.forEach(node.parameters, function (p) { return p.flags & (16 /* Public */ | 32 /* Private */ | 64 /* Protected */); });
+ // Skip past any prologue directives to find the first statement
+ // to ensure that it was a super call.
+ if (superCallShouldBeFirst) {
+ var statements = node.body.statements;
+ var superCallStatement;
+ for (var _i = 0; _i < statements.length; _i++) {
+ var statement = statements[_i];
+ if (statement.kind === 195 /* ExpressionStatement */ && isSuperCallExpression(statement.expression)) {
+ superCallStatement = statement;
+ break;
+ }
+ if (!ts.isPrologueDirective(statement)) {
+ break;
+ }
+ }
+ if (!superCallStatement) {
+ error(node, ts.Diagnostics.A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_or_has_parameter_properties);
+ }
+ else {
+ // In such a required super call, it is a compile-time error for argument expressions to reference this.
+ markThisReferencesAsErrors(superCallStatement.expression);
+ }
+ }
+ }
+ else if (baseConstructorType !== nullType) {
+ error(node, ts.Diagnostics.Constructors_for_derived_classes_must_contain_a_super_call);
+ }
+ }
+ }
+ function checkAccessorDeclaration(node) {
+ if (produceDiagnostics) {
+ // Grammar checking accessors
+ checkGrammarFunctionLikeDeclaration(node) || checkGrammarAccessor(node) || checkGrammarComputedPropertyName(node.name);
+ if (node.kind === 145 /* GetAccessor */) {
+ if (!ts.isInAmbientContext(node) && ts.nodeIsPresent(node.body) && !(bodyContainsAReturnStatement(node.body) || bodyContainsSingleThrowStatement(node.body))) {
+ error(node.name, ts.Diagnostics.A_get_accessor_must_return_a_value_or_consist_of_a_single_throw_statement);
+ }
+ }
+ if (!ts.hasDynamicName(node)) {
+ // TypeScript 1.0 spec (April 2014): 8.4.3
+ // Accessors for the same member name must specify the same accessibility.
+ var otherKind = node.kind === 145 /* GetAccessor */ ? 146 /* SetAccessor */ : 145 /* GetAccessor */;
+ var otherAccessor = ts.getDeclarationOfKind(node.symbol, otherKind);
+ if (otherAccessor) {
+ if (((node.flags & 112 /* AccessibilityModifier */) !== (otherAccessor.flags & 112 /* AccessibilityModifier */))) {
+ error(node.name, ts.Diagnostics.Getter_and_setter_accessors_do_not_agree_in_visibility);
+ }
+ var currentAccessorType = getAnnotatedAccessorType(node);
+ var otherAccessorType = getAnnotatedAccessorType(otherAccessor);
+ // TypeScript 1.0 spec (April 2014): 4.5
+ // If both accessors include type annotations, the specified types must be identical.
+ if (currentAccessorType && otherAccessorType) {
+ if (!isTypeIdenticalTo(currentAccessorType, otherAccessorType)) {
+ error(node, ts.Diagnostics.get_and_set_accessor_must_have_the_same_type);
+ }
+ }
+ }
+ }
+ getTypeOfAccessors(getSymbolOfNode(node));
+ }
+ checkFunctionLikeDeclaration(node);
+ }
+ function checkMissingDeclaration(node) {
+ checkDecorators(node);
+ }
+ function checkTypeArgumentConstraints(typeParameters, typeArguments) {
+ var result = true;
+ for (var i = 0; i < typeParameters.length; i++) {
+ var constraint = getConstraintOfTypeParameter(typeParameters[i]);
+ if (constraint) {
+ var typeArgument = typeArguments[i];
+ result = result && checkTypeAssignableTo(getTypeFromTypeNode(typeArgument), constraint, typeArgument, ts.Diagnostics.Type_0_does_not_satisfy_the_constraint_1);
+ }
+ }
+ return result;
+ }
+ function checkTypeReferenceNode(node) {
+ checkGrammarTypeArguments(node, node.typeArguments);
+ var type = getTypeFromTypeReference(node);
+ if (type !== unknownType && node.typeArguments) {
+ // Do type argument local checks only if referenced type is successfully resolved
+ ts.forEach(node.typeArguments, checkSourceElement);
+ if (produceDiagnostics) {
+ var symbol = getNodeLinks(node).resolvedSymbol;
+ var typeParameters = symbol.flags & 524288 /* TypeAlias */ ? getSymbolLinks(symbol).typeParameters : type.target.localTypeParameters;
+ checkTypeArgumentConstraints(typeParameters, node.typeArguments);
+ }
+ }
+ }
+ function checkTypeQuery(node) {
+ getTypeFromTypeQueryNode(node);
+ }
+ function checkTypeLiteral(node) {
+ ts.forEach(node.members, checkSourceElement);
+ if (produceDiagnostics) {
+ var type = getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
+ checkIndexConstraints(type);
+ checkTypeForDuplicateIndexSignatures(node);
+ }
+ }
+ function checkArrayType(node) {
+ checkSourceElement(node.elementType);
+ }
+ function checkTupleType(node) {
+ // Grammar checking
+ var hasErrorFromDisallowedTrailingComma = checkGrammarForDisallowedTrailingComma(node.elementTypes);
+ if (!hasErrorFromDisallowedTrailingComma && node.elementTypes.length === 0) {
+ grammarErrorOnNode(node, ts.Diagnostics.A_tuple_type_element_list_cannot_be_empty);
+ }
+ ts.forEach(node.elementTypes, checkSourceElement);
+ }
+ function checkUnionOrIntersectionType(node) {
+ ts.forEach(node.types, checkSourceElement);
+ }
+ function isPrivateWithinAmbient(node) {
+ return (node.flags & 32 /* Private */) && ts.isInAmbientContext(node);
+ }
+ function checkSpecializedSignatureDeclaration(signatureDeclarationNode) {
+ if (!produceDiagnostics) {
+ return;
+ }
+ var signature = getSignatureFromDeclaration(signatureDeclarationNode);
+ if (!signature.hasStringLiterals) {
+ return;
+ }
+ // TypeScript 1.0 spec (April 2014): 3.7.2.2
+ // Specialized signatures are not permitted in conjunction with a function body
+ if (ts.nodeIsPresent(signatureDeclarationNode.body)) {
+ error(signatureDeclarationNode, ts.Diagnostics.A_signature_with_an_implementation_cannot_use_a_string_literal_type);
+ return;
+ }
+ // TypeScript 1.0 spec (April 2014): 3.7.2.4
+ // Every specialized call or construct signature in an object type must be assignable
+ // to at least one non-specialized call or construct signature in the same object type
+ var signaturesToCheck;
+ // Unnamed (call\construct) signatures in interfaces are inherited and not shadowed so examining just node symbol won't give complete answer.
+ // Use declaring type to obtain full list of signatures.
+ if (!signatureDeclarationNode.name && signatureDeclarationNode.parent && signatureDeclarationNode.parent.kind === 215 /* InterfaceDeclaration */) {
+ ts.Debug.assert(signatureDeclarationNode.kind === 147 /* CallSignature */ || signatureDeclarationNode.kind === 148 /* ConstructSignature */);
+ var signatureKind = signatureDeclarationNode.kind === 147 /* CallSignature */ ? 0 /* Call */ : 1 /* Construct */;
+ var containingSymbol = getSymbolOfNode(signatureDeclarationNode.parent);
+ var containingType = getDeclaredTypeOfSymbol(containingSymbol);
+ signaturesToCheck = getSignaturesOfType(containingType, signatureKind);
+ }
+ else {
+ signaturesToCheck = getSignaturesOfSymbol(getSymbolOfNode(signatureDeclarationNode));
+ }
+ for (var _i = 0; _i < signaturesToCheck.length; _i++) {
+ var otherSignature = signaturesToCheck[_i];
+ if (!otherSignature.hasStringLiterals && isSignatureAssignableTo(signature, otherSignature)) {
+ return;
+ }
+ }
+ error(signatureDeclarationNode, ts.Diagnostics.Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature);
+ }
+ function getEffectiveDeclarationFlags(n, flagsToCheck) {
+ var flags = ts.getCombinedNodeFlags(n);
+ // children of classes (even ambient classes) should not be marked as ambient or export
+ // because those flags have no useful semantics there.
+ if (n.parent.kind !== 215 /* InterfaceDeclaration */ &&
+ n.parent.kind !== 214 /* ClassDeclaration */ &&
+ n.parent.kind !== 186 /* ClassExpression */ &&
+ ts.isInAmbientContext(n)) {
+ if (!(flags & 2 /* Ambient */)) {
+ // It is nested in an ambient context, which means it is automatically exported
+ flags |= 1 /* Export */;
+ }
+ flags |= 2 /* Ambient */;
+ }
+ return flags & flagsToCheck;
+ }
+ function checkFunctionOrConstructorSymbol(symbol) {
+ if (!produceDiagnostics) {
+ return;
+ }
+ function getCanonicalOverload(overloads, implementation) {
+ // Consider the canonical set of flags to be the flags of the bodyDeclaration or the first declaration
+ // Error on all deviations from this canonical set of flags
+ // The caveat is that if some overloads are defined in lib.d.ts, we don't want to
+ // report the errors on those. To achieve this, we will say that the implementation is
+ // the canonical signature only if it is in the same container as the first overload
+ var implementationSharesContainerWithFirstOverload = implementation !== undefined && implementation.parent === overloads[0].parent;
+ return implementationSharesContainerWithFirstOverload ? implementation : overloads[0];
+ }
+ function checkFlagAgreementBetweenOverloads(overloads, implementation, flagsToCheck, someOverloadFlags, allOverloadFlags) {
+ // Error if some overloads have a flag that is not shared by all overloads. To find the
+ // deviations, we XOR someOverloadFlags with allOverloadFlags
+ var someButNotAllOverloadFlags = someOverloadFlags ^ allOverloadFlags;
+ if (someButNotAllOverloadFlags !== 0) {
+ var canonicalFlags = getEffectiveDeclarationFlags(getCanonicalOverload(overloads, implementation), flagsToCheck);
+ ts.forEach(overloads, function (o) {
+ var deviation = getEffectiveDeclarationFlags(o, flagsToCheck) ^ canonicalFlags;
+ if (deviation & 1 /* Export */) {
+ error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_exported_or_not_exported);
+ }
+ else if (deviation & 2 /* Ambient */) {
+ error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_ambient_or_non_ambient);
+ }
+ else if (deviation & (32 /* Private */ | 64 /* Protected */)) {
+ error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_public_private_or_protected);
+ }
+ else if (deviation & 256 /* Abstract */) {
+ error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_abstract_or_not_abstract);
+ }
+ });
+ }
+ }
+ function checkQuestionTokenAgreementBetweenOverloads(overloads, implementation, someHaveQuestionToken, allHaveQuestionToken) {
+ if (someHaveQuestionToken !== allHaveQuestionToken) {
+ var canonicalHasQuestionToken = ts.hasQuestionToken(getCanonicalOverload(overloads, implementation));
+ ts.forEach(overloads, function (o) {
+ var deviation = ts.hasQuestionToken(o) !== canonicalHasQuestionToken;
+ if (deviation) {
+ error(o.name, ts.Diagnostics.Overload_signatures_must_all_be_optional_or_required);
+ }
+ });
+ }
+ }
+ var flagsToCheck = 1 /* Export */ | 2 /* Ambient */ | 32 /* Private */ | 64 /* Protected */ | 256 /* Abstract */;
+ var someNodeFlags = 0;
+ var allNodeFlags = flagsToCheck;
+ var someHaveQuestionToken = false;
+ var allHaveQuestionToken = true;
+ var hasOverloads = false;
+ var bodyDeclaration;
+ var lastSeenNonAmbientDeclaration;
+ var previousDeclaration;
+ var declarations = symbol.declarations;
+ var isConstructor = (symbol.flags & 16384 /* Constructor */) !== 0;
+ function reportImplementationExpectedError(node) {
+ if (node.name && ts.nodeIsMissing(node.name)) {
+ return;
+ }
+ var seen = false;
+ var subsequentNode = ts.forEachChild(node.parent, function (c) {
+ if (seen) {
+ return c;
+ }
+ else {
+ seen = c === node;
+ }
+ });
+ if (subsequentNode) {
+ if (subsequentNode.kind === node.kind) {
+ var errorNode_1 = subsequentNode.name || subsequentNode;
+ // TODO(jfreeman): These are methods, so handle computed name case
+ if (node.name && subsequentNode.name && node.name.text === subsequentNode.name.text) {
+ var reportError = (node.kind === 143 /* MethodDeclaration */ || node.kind === 142 /* MethodSignature */) &&
+ (node.flags & 128 /* Static */) !== (subsequentNode.flags & 128 /* Static */);
+ // we can get here in two cases
+ // 1. mixed static and instance class members
+ // 2. something with the same name was defined before the set of overloads that prevents them from merging
+ // here we'll report error only for the first case since for second we should already report error in binder
+ if (reportError) {
+ var diagnostic = node.flags & 128 /* Static */ ? ts.Diagnostics.Function_overload_must_be_static : ts.Diagnostics.Function_overload_must_not_be_static;
+ error(errorNode_1, diagnostic);
+ }
+ return;
+ }
+ else if (ts.nodeIsPresent(subsequentNode.body)) {
+ error(errorNode_1, ts.Diagnostics.Function_implementation_name_must_be_0, ts.declarationNameToString(node.name));
+ return;
+ }
+ }
+ }
+ var errorNode = node.name || node;
+ if (isConstructor) {
+ error(errorNode, ts.Diagnostics.Constructor_implementation_is_missing);
+ }
+ else {
+ // Report different errors regarding non-consecutive blocks of declarations depending on whether
+ // the node in question is abstract.
+ if (node.flags & 256 /* Abstract */) {
+ error(errorNode, ts.Diagnostics.All_declarations_of_an_abstract_method_must_be_consecutive);
+ }
+ else {
+ error(errorNode, ts.Diagnostics.Function_implementation_is_missing_or_not_immediately_following_the_declaration);
+ }
+ }
+ }
+ // when checking exported function declarations across modules check only duplicate implementations
+ // names and consistency of modifiers are verified when we check local symbol
+ var isExportSymbolInsideModule = symbol.parent && symbol.parent.flags & 1536 /* Module */;
+ var duplicateFunctionDeclaration = false;
+ var multipleConstructorImplementation = false;
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var current = declarations[_i];
+ var node = current;
+ var inAmbientContext = ts.isInAmbientContext(node);
+ var inAmbientContextOrInterface = node.parent.kind === 215 /* InterfaceDeclaration */ || node.parent.kind === 155 /* TypeLiteral */ || inAmbientContext;
+ if (inAmbientContextOrInterface) {
+ // check if declarations are consecutive only if they are non-ambient
+ // 1. ambient declarations can be interleaved
+ // i.e. this is legal
+ // declare function foo();
+ // declare function bar();
+ // declare function foo();
+ // 2. mixing ambient and non-ambient declarations is a separate error that will be reported - do not want to report an extra one
+ previousDeclaration = undefined;
+ }
+ if (node.kind === 213 /* FunctionDeclaration */ || node.kind === 143 /* MethodDeclaration */ || node.kind === 142 /* MethodSignature */ || node.kind === 144 /* Constructor */) {
+ var currentNodeFlags = getEffectiveDeclarationFlags(node, flagsToCheck);
+ someNodeFlags |= currentNodeFlags;
+ allNodeFlags &= currentNodeFlags;
+ someHaveQuestionToken = someHaveQuestionToken || ts.hasQuestionToken(node);
+ allHaveQuestionToken = allHaveQuestionToken && ts.hasQuestionToken(node);
+ if (ts.nodeIsPresent(node.body) && bodyDeclaration) {
+ if (isConstructor) {
+ multipleConstructorImplementation = true;
+ }
+ else {
+ duplicateFunctionDeclaration = true;
+ }
+ }
+ else if (!isExportSymbolInsideModule && previousDeclaration && previousDeclaration.parent === node.parent && previousDeclaration.end !== node.pos) {
+ reportImplementationExpectedError(previousDeclaration);
+ }
+ if (ts.nodeIsPresent(node.body)) {
+ if (!bodyDeclaration) {
+ bodyDeclaration = node;
+ }
+ }
+ else {
+ hasOverloads = true;
+ }
+ previousDeclaration = node;
+ if (!inAmbientContextOrInterface) {
+ lastSeenNonAmbientDeclaration = node;
+ }
+ }
+ }
+ if (multipleConstructorImplementation) {
+ ts.forEach(declarations, function (declaration) {
+ error(declaration, ts.Diagnostics.Multiple_constructor_implementations_are_not_allowed);
+ });
+ }
+ if (duplicateFunctionDeclaration) {
+ ts.forEach(declarations, function (declaration) {
+ error(declaration.name, ts.Diagnostics.Duplicate_function_implementation);
+ });
+ }
+ // Abstract methods can't have an implementation -- in particular, they don't need one.
+ if (!isExportSymbolInsideModule && lastSeenNonAmbientDeclaration && !lastSeenNonAmbientDeclaration.body &&
+ !(lastSeenNonAmbientDeclaration.flags & 256 /* Abstract */)) {
+ reportImplementationExpectedError(lastSeenNonAmbientDeclaration);
+ }
+ if (hasOverloads) {
+ checkFlagAgreementBetweenOverloads(declarations, bodyDeclaration, flagsToCheck, someNodeFlags, allNodeFlags);
+ checkQuestionTokenAgreementBetweenOverloads(declarations, bodyDeclaration, someHaveQuestionToken, allHaveQuestionToken);
+ if (bodyDeclaration) {
+ var signatures = getSignaturesOfSymbol(symbol);
+ var bodySignature = getSignatureFromDeclaration(bodyDeclaration);
+ // If the implementation signature has string literals, we will have reported an error in
+ // checkSpecializedSignatureDeclaration
+ if (!bodySignature.hasStringLiterals) {
+ // TypeScript 1.0 spec (April 2014): 6.1
+ // If a function declaration includes overloads, the overloads determine the call
+ // signatures of the type given to the function object
+ // and the function implementation signature must be assignable to that type
+ //
+ // TypeScript 1.0 spec (April 2014): 3.8.4
+ // Note that specialized call and construct signatures (section 3.7.2.4) are not significant when determining assignment compatibility
+ // Consider checking against specialized signatures too. Not doing so creates a type hole:
+ //
+ // function g(x: "hi", y: boolean);
+ // function g(x: string, y: {});
+ // function g(x: string, y: string) { }
+ //
+ // The implementation is completely unrelated to the specialized signature, yet we do not check this.
+ for (var _a = 0; _a < signatures.length; _a++) {
+ var signature = signatures[_a];
+ if (!signature.hasStringLiterals && !isSignatureAssignableTo(bodySignature, signature)) {
+ error(signature.declaration, ts.Diagnostics.Overload_signature_is_not_compatible_with_function_implementation);
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+ function checkExportsOnMergedDeclarations(node) {
+ if (!produceDiagnostics) {
+ return;
+ }
+ // if localSymbol is defined on node then node itself is exported - check is required
+ var symbol = node.localSymbol;
+ if (!symbol) {
+ // local symbol is undefined => this declaration is non-exported.
+ // however symbol might contain other declarations that are exported
+ symbol = getSymbolOfNode(node);
+ if (!(symbol.flags & 7340032 /* Export */)) {
+ // this is a pure local symbol (all declarations are non-exported) - no need to check anything
+ return;
+ }
+ }
+ // run the check only for the first declaration in the list
+ if (ts.getDeclarationOfKind(symbol, node.kind) !== node) {
+ return;
+ }
+ // we use SymbolFlags.ExportValue, SymbolFlags.ExportType and SymbolFlags.ExportNamespace
+ // to denote disjoint declarationSpaces (without making new enum type).
+ var exportedDeclarationSpaces = 0 /* None */;
+ var nonExportedDeclarationSpaces = 0 /* None */;
+ var defaultExportedDeclarationSpaces = 0 /* None */;
+ for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
+ var d = _a[_i];
+ var declarationSpaces = getDeclarationSpaces(d);
+ var effectiveDeclarationFlags = getEffectiveDeclarationFlags(d, 1 /* Export */ | 1024 /* Default */);
+ if (effectiveDeclarationFlags & 1 /* Export */) {
+ if (effectiveDeclarationFlags & 1024 /* Default */) {
+ defaultExportedDeclarationSpaces |= declarationSpaces;
+ }
+ else {
+ exportedDeclarationSpaces |= declarationSpaces;
+ }
+ }
+ else {
+ nonExportedDeclarationSpaces |= declarationSpaces;
+ }
+ }
+ // Spaces for anyting not declared a 'default export'.
+ var nonDefaultExportedDeclarationSpaces = exportedDeclarationSpaces | nonExportedDeclarationSpaces;
+ var commonDeclarationSpacesForExportsAndLocals = exportedDeclarationSpaces & nonExportedDeclarationSpaces;
+ var commonDeclarationSpacesForDefaultAndNonDefault = defaultExportedDeclarationSpaces & nonDefaultExportedDeclarationSpaces;
+ if (commonDeclarationSpacesForExportsAndLocals || commonDeclarationSpacesForDefaultAndNonDefault) {
+ // declaration spaces for exported and non-exported declarations intersect
+ for (var _b = 0, _c = symbol.declarations; _b < _c.length; _b++) {
+ var d = _c[_b];
+ var declarationSpaces = getDeclarationSpaces(d);
+ // Only error on the declarations that conributed to the intersecting spaces.
+ if (declarationSpaces & commonDeclarationSpacesForDefaultAndNonDefault) {
+ error(d.name, ts.Diagnostics.Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead, ts.declarationNameToString(d.name));
+ }
+ else if (declarationSpaces & commonDeclarationSpacesForExportsAndLocals) {
+ error(d.name, ts.Diagnostics.Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local, ts.declarationNameToString(d.name));
+ }
+ }
+ }
+ function getDeclarationSpaces(d) {
+ switch (d.kind) {
+ case 215 /* InterfaceDeclaration */:
+ return 2097152 /* ExportType */;
+ case 218 /* ModuleDeclaration */:
+ return d.name.kind === 9 /* StringLiteral */ || ts.getModuleInstanceState(d) !== 0 /* NonInstantiated */
+ ? 4194304 /* ExportNamespace */ | 1048576 /* ExportValue */
+ : 4194304 /* ExportNamespace */;
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return 2097152 /* ExportType */ | 1048576 /* ExportValue */;
+ case 221 /* ImportEqualsDeclaration */:
+ var result = 0;
+ var target = resolveAlias(getSymbolOfNode(d));
+ ts.forEach(target.declarations, function (d) { result |= getDeclarationSpaces(d); });
+ return result;
+ default:
+ return 1048576 /* ExportValue */;
+ }
+ }
+ }
+ function checkNonThenableType(type, location, message) {
+ type = getWidenedType(type);
+ if (!isTypeAny(type) && isTypeAssignableTo(type, getGlobalThenableType())) {
+ if (location) {
+ if (!message) {
+ message = ts.Diagnostics.Operand_for_await_does_not_have_a_valid_callable_then_member;
+ }
+ error(location, message);
+ }
+ return unknownType;
+ }
+ return type;
+ }
+ /**
+ * Gets the "promised type" of a promise.
+ * @param type The type of the promise.
+ * @remarks The "promised type" of a type is the type of the "value" parameter of the "onfulfilled" callback.
+ */
+ function getPromisedType(promise) {
+ //
+ // { // promise
+ // then( // thenFunction
+ // onfulfilled: ( // onfulfilledParameterType
+ // value: T // valueParameterType
+ // ) => any
+ // ): any;
+ // }
+ //
+ if (promise.flags & 1 /* Any */) {
+ return undefined;
+ }
+ if ((promise.flags & 4096 /* Reference */) && promise.target === tryGetGlobalPromiseType()) {
+ return promise.typeArguments[0];
+ }
+ var globalPromiseLikeType = getInstantiatedGlobalPromiseLikeType();
+ if (globalPromiseLikeType === emptyObjectType || !isTypeAssignableTo(promise, globalPromiseLikeType)) {
+ return undefined;
+ }
+ var thenFunction = getTypeOfPropertyOfType(promise, "then");
+ if (thenFunction && (thenFunction.flags & 1 /* Any */)) {
+ return undefined;
+ }
+ var thenSignatures = thenFunction ? getSignaturesOfType(thenFunction, 0 /* Call */) : emptyArray;
+ if (thenSignatures.length === 0) {
+ return undefined;
+ }
+ var onfulfilledParameterType = getUnionType(ts.map(thenSignatures, getTypeOfFirstParameterOfSignature));
+ if (onfulfilledParameterType.flags & 1 /* Any */) {
+ return undefined;
+ }
+ var onfulfilledParameterSignatures = getSignaturesOfType(onfulfilledParameterType, 0 /* Call */);
+ if (onfulfilledParameterSignatures.length === 0) {
+ return undefined;
+ }
+ var valueParameterType = getUnionType(ts.map(onfulfilledParameterSignatures, getTypeOfFirstParameterOfSignature));
+ return valueParameterType;
+ }
+ function getTypeOfFirstParameterOfSignature(signature) {
+ return getTypeAtPosition(signature, 0);
+ }
+ /**
+ * Gets the "awaited type" of a type.
+ * @param type The type to await.
+ * @remarks The "awaited type" of an expression is its "promised type" if the expression is a
+ * Promise-like type; otherwise, it is the type of the expression. This is used to reflect
+ * The runtime behavior of the `await` keyword.
+ */
+ function getAwaitedType(type) {
+ return checkAwaitedType(type, /*location*/ undefined, /*message*/ undefined);
+ }
+ function checkAwaitedType(type, location, message) {
+ return checkAwaitedTypeWorker(type);
+ function checkAwaitedTypeWorker(type) {
+ if (type.flags & 16384 /* Union */) {
+ var types = [];
+ for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
+ var constituentType = _a[_i];
+ types.push(checkAwaitedTypeWorker(constituentType));
+ }
+ return getUnionType(types);
+ }
+ else {
+ var promisedType = getPromisedType(type);
+ if (promisedType === undefined) {
+ // The type was not a PromiseLike, so it could not be unwrapped any further.
+ // As long as the type does not have a callable "then" property, it is
+ // safe to return the type; otherwise, an error will have been reported in
+ // the call to checkNonThenableType and we will return unknownType.
+ //
+ // An example of a non-promise "thenable" might be:
+ //
+ // await { then(): void {} }
+ //
+ // The "thenable" does not match the minimal definition for a PromiseLike. When
+ // a Promise/A+-compatible or ES6 promise tries to adopt this value, the promise
+ // will never settle. We treat this as an error to help flag an early indicator
+ // of a runtime problem. If the user wants to return this value from an async
+ // function, they would need to wrap it in some other value. If they want it to
+ // be treated as a promise, they can cast to <any>.
+ return checkNonThenableType(type, location, message);
+ }
+ else {
+ if (type.id === promisedType.id || awaitedTypeStack.indexOf(promisedType.id) >= 0) {
+ // We have a bad actor in the form of a promise whose promised type is
+ // the same promise type, or a mutually recursive promise. Return the
+ // unknown type as we cannot guess the shape. If this were the actual
+ // case in the JavaScript, this Promise would never resolve.
+ //
+ // An example of a bad actor with a singly-recursive promise type might
+ // be:
+ //
+ // interface BadPromise {
+ // then(
+ // onfulfilled: (value: BadPromise) => any,
+ // onrejected: (error: any) => any): BadPromise;
+ // }
+ //
+ // The above interface will pass the PromiseLike check, and return a
+ // promised type of `BadPromise`. Since this is a self reference, we
+ // don't want to keep recursing ad infinitum.
+ //
+ // An example of a bad actor in the form of a mutually-recursive
+ // promise type might be:
+ //
+ // interface BadPromiseA {
+ // then(
+ // onfulfilled: (value: BadPromiseB) => any,
+ // onrejected: (error: any) => any): BadPromiseB;
+ // }
+ //
+ // interface BadPromiseB {
+ // then(
+ // onfulfilled: (value: BadPromiseA) => any,
+ // onrejected: (error: any) => any): BadPromiseA;
+ // }
+ //
+ if (location) {
+ error(location, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method, symbolToString(type.symbol));
+ }
+ return unknownType;
+ }
+ // Keep track of the type we're about to unwrap to avoid bad recursive promise types.
+ // See the comments above for more information.
+ awaitedTypeStack.push(type.id);
+ var awaitedType = checkAwaitedTypeWorker(promisedType);
+ awaitedTypeStack.pop();
+ return awaitedType;
+ }
+ }
+ }
+ }
+ /**
+ * Checks the return type of an async function to ensure it is a compatible
+ * Promise implementation.
+ * @param node The signature to check
+ * @param returnType The return type for the function
+ * @remarks
+ * This checks that an async function has a valid Promise-compatible return type,
+ * and returns the *awaited type* of the promise. An async function has a valid
+ * Promise-compatible return type if the resolved value of the return type has a
+ * construct signature that takes in an `initializer` function that in turn supplies
+ * a `resolve` function as one of its arguments and results in an object with a
+ * callable `then` signature.
+ */
+ function checkAsyncFunctionReturnType(node) {
+ var globalPromiseConstructorLikeType = getGlobalPromiseConstructorLikeType();
+ if (globalPromiseConstructorLikeType === emptyObjectType) {
+ // If we couldn't resolve the global PromiseConstructorLike type we cannot verify
+ // compatibility with __awaiter.
+ return unknownType;
+ }
+ // As part of our emit for an async function, we will need to emit the entity name of
+ // the return type annotation as an expression. To meet the necessary runtime semantics
+ // for __awaiter, we must also check that the type of the declaration (e.g. the static
+ // side or "constructor" of the promise type) is compatible `PromiseConstructorLike`.
+ //
+ // An example might be (from lib.es6.d.ts):
+ //
+ // interface Promise<T> { ... }
+ // interface PromiseConstructor {
+ // new <T>(...): Promise<T>;
+ // }
+ // declare var Promise: PromiseConstructor;
+ //
+ // When an async function declares a return type annotation of `Promise<T>`, we
+ // need to get the type of the `Promise` variable declaration above, which would
+ // be `PromiseConstructor`.
+ //
+ // The same case applies to a class:
+ //
+ // declare class Promise<T> {
+ // constructor(...);
+ // then<U>(...): Promise<U>;
+ // }
+ //
+ // When we get the type of the `Promise` symbol here, we get the type of the static
+ // side of the `Promise` class, which would be `{ new <T>(...): Promise<T> }`.
+ var promiseType = getTypeFromTypeNode(node.type);
+ if (promiseType === unknownType && compilerOptions.isolatedModules) {
+ // If we are compiling with isolatedModules, we may not be able to resolve the
+ // type as a value. As such, we will just return unknownType;
+ return unknownType;
+ }
+ var promiseConstructor = getNodeLinks(node.type).resolvedSymbol;
+ if (!promiseConstructor || !symbolIsValue(promiseConstructor)) {
+ var typeName = promiseConstructor
+ ? symbolToString(promiseConstructor)
+ : typeToString(promiseType);
+ error(node, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type, typeName);
+ return unknownType;
+ }
+ // Validate the promise constructor type.
+ var promiseConstructorType = getTypeOfSymbol(promiseConstructor);
+ if (!checkTypeAssignableTo(promiseConstructorType, globalPromiseConstructorLikeType, node, ts.Diagnostics.Type_0_is_not_a_valid_async_function_return_type)) {
+ return unknownType;
+ }
+ // Verify there is no local declaration that could collide with the promise constructor.
+ var promiseName = ts.getEntityNameFromTypeNode(node.type);
+ var root = getFirstIdentifier(promiseName);
+ var rootSymbol = getSymbol(node.locals, root.text, 107455 /* Value */);
+ if (rootSymbol) {
+ error(rootSymbol.valueDeclaration, ts.Diagnostics.Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions, root.text, getFullyQualifiedName(promiseConstructor));
+ return unknownType;
+ }
+ // Get and return the awaited type of the return type.
+ return checkAwaitedType(promiseType, node, ts.Diagnostics.An_async_function_or_method_must_have_a_valid_awaitable_return_type);
+ }
+ /** Check a decorator */
+ function checkDecorator(node) {
+ var signature = getResolvedSignature(node);
+ var returnType = getReturnTypeOfSignature(signature);
+ if (returnType.flags & 1 /* Any */) {
+ return;
+ }
+ var expectedReturnType;
+ var headMessage = getDiagnosticHeadMessageForDecoratorResolution(node);
+ var errorInfo;
+ switch (node.parent.kind) {
+ case 214 /* ClassDeclaration */:
+ var classSymbol = getSymbolOfNode(node.parent);
+ var classConstructorType = getTypeOfSymbol(classSymbol);
+ expectedReturnType = getUnionType([classConstructorType, voidType]);
+ break;
+ case 138 /* Parameter */:
+ expectedReturnType = voidType;
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any);
+ break;
+ case 141 /* PropertyDeclaration */:
+ expectedReturnType = voidType;
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.The_return_type_of_a_property_decorator_function_must_be_either_void_or_any);
+ break;
+ case 143 /* MethodDeclaration */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ var methodType = getTypeOfNode(node.parent);
+ var descriptorType = createTypedPropertyDescriptorType(methodType);
+ expectedReturnType = getUnionType([descriptorType, voidType]);
+ break;
+ }
+ checkTypeAssignableTo(returnType, expectedReturnType, node, headMessage, errorInfo);
+ }
+ /** Checks a type reference node as an expression. */
+ function checkTypeNodeAsExpression(node) {
+ // When we are emitting type metadata for decorators, we need to try to check the type
+ // as if it were an expression so that we can emit the type in a value position when we
+ // serialize the type metadata.
+ if (node && node.kind === 151 /* TypeReference */) {
+ var root = getFirstIdentifier(node.typeName);
+ var meaning = root.parent.kind === 151 /* TypeReference */ ? 793056 /* Type */ : 1536 /* Namespace */;
+ // Resolve type so we know which symbol is referenced
+ var rootSymbol = resolveName(root, root.text, meaning | 8388608 /* Alias */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined);
+ // Resolved symbol is alias
+ if (rootSymbol && rootSymbol.flags & 8388608 /* Alias */) {
+ var aliasTarget = resolveAlias(rootSymbol);
+ // If alias has value symbol - mark alias as referenced
+ if (aliasTarget.flags & 107455 /* Value */ && !isConstEnumOrConstEnumOnlyModule(resolveAlias(rootSymbol))) {
+ markAliasSymbolAsReferenced(rootSymbol);
+ }
+ }
+ }
+ }
+ /**
+ * Checks the type annotation of an accessor declaration or property declaration as
+ * an expression if it is a type reference to a type with a value declaration.
+ */
+ function checkTypeAnnotationAsExpression(node) {
+ switch (node.kind) {
+ case 141 /* PropertyDeclaration */:
+ checkTypeNodeAsExpression(node.type);
+ break;
+ case 138 /* Parameter */:
+ checkTypeNodeAsExpression(node.type);
+ break;
+ case 143 /* MethodDeclaration */:
+ checkTypeNodeAsExpression(node.type);
+ break;
+ case 145 /* GetAccessor */:
+ checkTypeNodeAsExpression(node.type);
+ break;
+ case 146 /* SetAccessor */:
+ checkTypeNodeAsExpression(ts.getSetAccessorTypeAnnotationNode(node));
+ break;
+ }
+ }
+ /** Checks the type annotation of the parameters of a function/method or the constructor of a class as expressions */
+ function checkParameterTypeAnnotationsAsExpressions(node) {
+ // ensure all type annotations with a value declaration are checked as an expression
+ for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
+ var parameter = _a[_i];
+ checkTypeAnnotationAsExpression(parameter);
+ }
+ }
+ /** Check the decorators of a node */
+ function checkDecorators(node) {
+ if (!node.decorators) {
+ return;
+ }
+ // skip this check for nodes that cannot have decorators. These should have already had an error reported by
+ // checkGrammarDecorators.
+ if (!ts.nodeCanBeDecorated(node)) {
+ return;
+ }
+ if (!compilerOptions.experimentalDecorators) {
+ error(node, ts.Diagnostics.Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Specify_experimentalDecorators_to_remove_this_warning);
+ }
+ if (compilerOptions.emitDecoratorMetadata) {
+ // we only need to perform these checks if we are emitting serialized type metadata for the target of a decorator.
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ var constructor = ts.getFirstConstructorWithBody(node);
+ if (constructor) {
+ checkParameterTypeAnnotationsAsExpressions(constructor);
+ }
+ break;
+ case 143 /* MethodDeclaration */:
+ checkParameterTypeAnnotationsAsExpressions(node);
+ // fall-through
+ case 146 /* SetAccessor */:
+ case 145 /* GetAccessor */:
+ case 141 /* PropertyDeclaration */:
+ case 138 /* Parameter */:
+ checkTypeAnnotationAsExpression(node);
+ break;
+ }
+ }
+ emitDecorate = true;
+ if (node.kind === 138 /* Parameter */) {
+ emitParam = true;
+ }
+ ts.forEach(node.decorators, checkDecorator);
+ }
+ function checkFunctionDeclaration(node) {
+ if (produceDiagnostics) {
+ checkFunctionLikeDeclaration(node) || checkGrammarForGenerator(node);
+ checkCollisionWithCapturedSuperVariable(node, node.name);
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ }
+ }
+ function checkFunctionLikeDeclaration(node) {
+ checkDecorators(node);
+ checkSignatureDeclaration(node);
+ var isAsync = ts.isAsyncFunctionLike(node);
+ if (isAsync) {
+ emitAwaiter = true;
+ }
+ // Do not use hasDynamicName here, because that returns false for well known symbols.
+ // We want to perform checkComputedPropertyName for all computed properties, including
+ // well known symbols.
+ if (node.name && node.name.kind === 136 /* ComputedPropertyName */) {
+ // This check will account for methods in class/interface declarations,
+ // as well as accessors in classes/object literals
+ checkComputedPropertyName(node.name);
+ }
+ if (!ts.hasDynamicName(node)) {
+ // first we want to check the local symbol that contain this declaration
+ // - if node.localSymbol !== undefined - this is current declaration is exported and localSymbol points to the local symbol
+ // - if node.localSymbol === undefined - this node is non-exported so we can just pick the result of getSymbolOfNode
+ var symbol = getSymbolOfNode(node);
+ var localSymbol = node.localSymbol || symbol;
+ var firstDeclaration = ts.getDeclarationOfKind(localSymbol, node.kind);
+ // Only type check the symbol once
+ if (node === firstDeclaration) {
+ checkFunctionOrConstructorSymbol(localSymbol);
+ }
+ if (symbol.parent) {
+ // run check once for the first declaration
+ if (ts.getDeclarationOfKind(symbol, node.kind) === node) {
+ // run check on export symbol to check that modifiers agree across all exported declarations
+ checkFunctionOrConstructorSymbol(symbol);
+ }
+ }
+ }
+ checkSourceElement(node.body);
+ if (node.type && !isAccessor(node.kind) && !node.asteriskToken) {
+ var returnType = getTypeFromTypeNode(node.type);
+ var promisedType;
+ if (isAsync) {
+ promisedType = checkAsyncFunctionReturnType(node);
+ }
+ checkIfNonVoidFunctionHasReturnExpressionsOrSingleThrowStatment(node, isAsync ? promisedType : returnType);
+ }
+ if (produceDiagnostics && !node.type) {
+ // Report an implicit any error if there is no body, no explicit return type, and node is not a private method
+ // in an ambient context
+ if (compilerOptions.noImplicitAny && ts.nodeIsMissing(node.body) && !isPrivateWithinAmbient(node)) {
+ reportImplicitAnyError(node, anyType);
+ }
+ if (node.asteriskToken && ts.nodeIsPresent(node.body)) {
+ // A generator with a body and no type annotation can still cause errors. It can error if the
+ // yielded values have no common supertype, or it can give an implicit any error if it has no
+ // yielded values. The only way to trigger these errors is to try checking its return type.
+ getReturnTypeOfSignature(getSignatureFromDeclaration(node));
+ }
+ }
+ }
+ function checkBlock(node) {
+ // Grammar checking for SyntaxKind.Block
+ if (node.kind === 192 /* Block */) {
+ checkGrammarStatementInAmbientContext(node);
+ }
+ ts.forEach(node.statements, checkSourceElement);
+ if (ts.isFunctionBlock(node) || node.kind === 219 /* ModuleBlock */) {
+ checkFunctionAndClassExpressionBodies(node);
+ }
+ }
+ function checkCollisionWithArgumentsInGeneratedCode(node) {
+ // no rest parameters \ declaration context \ overload - no codegen impact
+ if (!ts.hasRestParameter(node) || ts.isInAmbientContext(node) || ts.nodeIsMissing(node.body)) {
+ return;
+ }
+ ts.forEach(node.parameters, function (p) {
+ if (p.name && !ts.isBindingPattern(p.name) && p.name.text === argumentsSymbol.name) {
+ error(p, ts.Diagnostics.Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters);
+ }
+ });
+ }
+ function needCollisionCheckForIdentifier(node, identifier, name) {
+ if (!(identifier && identifier.text === name)) {
+ return false;
+ }
+ if (node.kind === 141 /* PropertyDeclaration */ ||
+ node.kind === 140 /* PropertySignature */ ||
+ node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 142 /* MethodSignature */ ||
+ node.kind === 145 /* GetAccessor */ ||
+ node.kind === 146 /* SetAccessor */) {
+ // it is ok to have member named '_super' or '_this' - member access is always qualified
+ return false;
+ }
+ if (ts.isInAmbientContext(node)) {
+ // ambient context - no codegen impact
+ return false;
+ }
+ var root = ts.getRootDeclaration(node);
+ if (root.kind === 138 /* Parameter */ && ts.nodeIsMissing(root.parent.body)) {
+ // just an overload - no codegen impact
+ return false;
+ }
+ return true;
+ }
+ function checkCollisionWithCapturedThisVariable(node, name) {
+ if (needCollisionCheckForIdentifier(node, name, "_this")) {
+ potentialThisCollisions.push(node);
+ }
+ }
+ // this function will run after checking the source file so 'CaptureThis' is correct for all nodes
+ function checkIfThisIsCapturedInEnclosingScope(node) {
+ var current = node;
+ while (current) {
+ if (getNodeCheckFlags(current) & 4 /* CaptureThis */) {
+ var isDeclaration_1 = node.kind !== 69 /* Identifier */;
+ if (isDeclaration_1) {
+ error(node.name, ts.Diagnostics.Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference);
+ }
+ else {
+ error(node, ts.Diagnostics.Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference);
+ }
+ return;
+ }
+ current = current.parent;
+ }
+ }
+ function checkCollisionWithCapturedSuperVariable(node, name) {
+ if (!needCollisionCheckForIdentifier(node, name, "_super")) {
+ return;
+ }
+ // bubble up and find containing type
+ var enclosingClass = ts.getContainingClass(node);
+ // if containing type was not found or it is ambient - exit (no codegen)
+ if (!enclosingClass || ts.isInAmbientContext(enclosingClass)) {
+ return;
+ }
+ if (ts.getClassExtendsHeritageClauseElement(enclosingClass)) {
+ var isDeclaration_2 = node.kind !== 69 /* Identifier */;
+ if (isDeclaration_2) {
+ error(node, ts.Diagnostics.Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference);
+ }
+ else {
+ error(node, ts.Diagnostics.Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference);
+ }
+ }
+ }
+ function checkCollisionWithRequireExportsInGeneratedCode(node, name) {
+ if (!needCollisionCheckForIdentifier(node, name, "require") && !needCollisionCheckForIdentifier(node, name, "exports")) {
+ return;
+ }
+ // Uninstantiated modules shouldnt do this check
+ if (node.kind === 218 /* ModuleDeclaration */ && ts.getModuleInstanceState(node) !== 1 /* Instantiated */) {
+ return;
+ }
+ // In case of variable declaration, node.parent is variable statement so look at the variable statement's parent
+ var parent = getDeclarationContainer(node);
+ if (parent.kind === 248 /* SourceFile */ && ts.isExternalModule(parent)) {
+ // If the declaration happens to be in external module, report error that require and exports are reserved keywords
+ error(name, ts.Diagnostics.Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module, ts.declarationNameToString(name), ts.declarationNameToString(name));
+ }
+ }
+ function checkVarDeclaredNamesNotShadowed(node) {
+ // - ScriptBody : StatementList
+ // It is a Syntax Error if any element of the LexicallyDeclaredNames of StatementList
+ // also occurs in the VarDeclaredNames of StatementList.
+ // - Block : { StatementList }
+ // It is a Syntax Error if any element of the LexicallyDeclaredNames of StatementList
+ // also occurs in the VarDeclaredNames of StatementList.
+ // Variable declarations are hoisted to the top of their function scope. They can shadow
+ // block scoped declarations, which bind tighter. this will not be flagged as duplicate definition
+ // by the binder as the declaration scope is different.
+ // A non-initialized declaration is a no-op as the block declaration will resolve before the var
+ // declaration. the problem is if the declaration has an initializer. this will act as a write to the
+ // block declared value. this is fine for let, but not const.
+ // Only consider declarations with initializers, uninitialized let declarations will not
+ // step on a let/const variable.
+ // Do not consider let and const declarations, as duplicate block-scoped declarations
+ // are handled by the binder.
+ // We are only looking for let declarations that step on let\const declarations from a
+ // different scope. e.g.:
+ // {
+ // const x = 0; // localDeclarationSymbol obtained after name resolution will correspond to this declaration
+ // let x = 0; // symbol for this declaration will be 'symbol'
+ // }
+ // skip block-scoped variables and parameters
+ if ((ts.getCombinedNodeFlags(node) & 49152 /* BlockScoped */) !== 0 || ts.isParameterDeclaration(node)) {
+ return;
+ }
+ // skip variable declarations that don't have initializers
+ // NOTE: in ES6 spec initializer is required in variable declarations where name is binding pattern
+ // so we'll always treat binding elements as initialized
+ if (node.kind === 211 /* VariableDeclaration */ && !node.initializer) {
+ return;
+ }
+ var symbol = getSymbolOfNode(node);
+ if (symbol.flags & 1 /* FunctionScopedVariable */) {
+ var localDeclarationSymbol = resolveName(node, node.name.text, 3 /* Variable */, /*nodeNotFoundErrorMessage*/ undefined, /*nameArg*/ undefined);
+ if (localDeclarationSymbol &&
+ localDeclarationSymbol !== symbol &&
+ localDeclarationSymbol.flags & 2 /* BlockScopedVariable */) {
+ if (getDeclarationFlagsFromSymbol(localDeclarationSymbol) & 49152 /* BlockScoped */) {
+ var varDeclList = ts.getAncestor(localDeclarationSymbol.valueDeclaration, 212 /* VariableDeclarationList */);
+ var container = varDeclList.parent.kind === 193 /* VariableStatement */ && varDeclList.parent.parent
+ ? varDeclList.parent.parent
+ : undefined;
+ // names of block-scoped and function scoped variables can collide only
+ // if block scoped variable is defined in the function\module\source file scope (because of variable hoisting)
+ var namesShareScope = container &&
+ (container.kind === 192 /* Block */ && ts.isFunctionLike(container.parent) ||
+ container.kind === 219 /* ModuleBlock */ ||
+ container.kind === 218 /* ModuleDeclaration */ ||
+ container.kind === 248 /* SourceFile */);
+ // here we know that function scoped variable is shadowed by block scoped one
+ // if they are defined in the same scope - binder has already reported redeclaration error
+ // otherwise if variable has an initializer - show error that initialization will fail
+ // since LHS will be block scoped name instead of function scoped
+ if (!namesShareScope) {
+ var name_14 = symbolToString(localDeclarationSymbol);
+ error(node, ts.Diagnostics.Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1, name_14, name_14);
+ }
+ }
+ }
+ }
+ }
+ // Check that a parameter initializer contains no references to parameters declared to the right of itself
+ function checkParameterInitializer(node) {
+ if (ts.getRootDeclaration(node).kind !== 138 /* Parameter */) {
+ return;
+ }
+ var func = ts.getContainingFunction(node);
+ visit(node.initializer);
+ function visit(n) {
+ if (n.kind === 69 /* Identifier */) {
+ var referencedSymbol = getNodeLinks(n).resolvedSymbol;
+ // check FunctionLikeDeclaration.locals (stores parameters\function local variable)
+ // if it contains entry with a specified name and if this entry matches the resolved symbol
+ if (referencedSymbol && referencedSymbol !== unknownSymbol && getSymbol(func.locals, referencedSymbol.name, 107455 /* Value */) === referencedSymbol) {
+ if (referencedSymbol.valueDeclaration.kind === 138 /* Parameter */) {
+ if (referencedSymbol.valueDeclaration === node) {
+ error(n, ts.Diagnostics.Parameter_0_cannot_be_referenced_in_its_initializer, ts.declarationNameToString(node.name));
+ return;
+ }
+ if (referencedSymbol.valueDeclaration.pos < node.pos) {
+ // legal case - parameter initializer references some parameter strictly on left of current parameter declaration
+ return;
+ }
+ }
+ error(n, ts.Diagnostics.Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it, ts.declarationNameToString(node.name), ts.declarationNameToString(n));
+ }
+ }
+ else {
+ ts.forEachChild(n, visit);
+ }
+ }
+ }
+ // Check variable, parameter, or property declaration
+ function checkVariableLikeDeclaration(node) {
+ checkDecorators(node);
+ checkSourceElement(node.type);
+ // For a computed property, just check the initializer and exit
+ // Do not use hasDynamicName here, because that returns false for well known symbols.
+ // We want to perform checkComputedPropertyName for all computed properties, including
+ // well known symbols.
+ if (node.name.kind === 136 /* ComputedPropertyName */) {
+ checkComputedPropertyName(node.name);
+ if (node.initializer) {
+ checkExpressionCached(node.initializer);
+ }
+ }
+ // For a binding pattern, check contained binding elements
+ if (ts.isBindingPattern(node.name)) {
+ ts.forEach(node.name.elements, checkSourceElement);
+ }
+ // For a parameter declaration with an initializer, error and exit if the containing function doesn't have a body
+ if (node.initializer && ts.getRootDeclaration(node).kind === 138 /* Parameter */ && ts.nodeIsMissing(ts.getContainingFunction(node).body)) {
+ error(node, ts.Diagnostics.A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation);
+ return;
+ }
+ // For a binding pattern, validate the initializer and exit
+ if (ts.isBindingPattern(node.name)) {
+ if (node.initializer) {
+ checkTypeAssignableTo(checkExpressionCached(node.initializer), getWidenedTypeForVariableLikeDeclaration(node), node, /*headMessage*/ undefined);
+ checkParameterInitializer(node);
+ }
+ return;
+ }
+ var symbol = getSymbolOfNode(node);
+ var type = getTypeOfVariableOrParameterOrProperty(symbol);
+ if (node === symbol.valueDeclaration) {
+ // Node is the primary declaration of the symbol, just validate the initializer
+ if (node.initializer) {
+ checkTypeAssignableTo(checkExpressionCached(node.initializer), type, node, /*headMessage*/ undefined);
+ checkParameterInitializer(node);
+ }
+ }
+ else {
+ // Node is a secondary declaration, check that type is identical to primary declaration and check that
+ // initializer is consistent with type associated with the node
+ var declarationType = getWidenedTypeForVariableLikeDeclaration(node);
+ if (type !== unknownType && declarationType !== unknownType && !isTypeIdenticalTo(type, declarationType)) {
+ error(node.name, ts.Diagnostics.Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2, ts.declarationNameToString(node.name), typeToString(type), typeToString(declarationType));
+ }
+ if (node.initializer) {
+ checkTypeAssignableTo(checkExpressionCached(node.initializer), declarationType, node, /*headMessage*/ undefined);
+ }
+ }
+ if (node.kind !== 141 /* PropertyDeclaration */ && node.kind !== 140 /* PropertySignature */) {
+ // We know we don't have a binding pattern or computed name here
+ checkExportsOnMergedDeclarations(node);
+ if (node.kind === 211 /* VariableDeclaration */ || node.kind === 163 /* BindingElement */) {
+ checkVarDeclaredNamesNotShadowed(node);
+ }
+ checkCollisionWithCapturedSuperVariable(node, node.name);
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ }
+ }
+ function checkVariableDeclaration(node) {
+ checkGrammarVariableDeclaration(node);
+ return checkVariableLikeDeclaration(node);
+ }
+ function checkBindingElement(node) {
+ checkGrammarBindingElement(node);
+ return checkVariableLikeDeclaration(node);
+ }
+ function checkVariableStatement(node) {
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarVariableDeclarationList(node.declarationList) || checkGrammarForDisallowedLetOrConstStatement(node);
+ ts.forEach(node.declarationList.declarations, checkSourceElement);
+ }
+ function checkGrammarDisallowedModifiersOnObjectLiteralExpressionMethod(node) {
+ // We only disallow modifier on a method declaration if it is a property of object-literal-expression
+ if (node.modifiers && node.parent.kind === 165 /* ObjectLiteralExpression */) {
+ if (ts.isAsyncFunctionLike(node)) {
+ if (node.modifiers.length > 1) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+ }
+ }
+ else {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+ }
+ }
+ }
+ function checkExpressionStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ checkExpression(node.expression);
+ }
+ function checkIfStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ checkExpression(node.expression);
+ checkSourceElement(node.thenStatement);
+ checkSourceElement(node.elseStatement);
+ }
+ function checkDoStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ checkSourceElement(node.statement);
+ checkExpression(node.expression);
+ }
+ function checkWhileStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ checkExpression(node.expression);
+ checkSourceElement(node.statement);
+ }
+ function checkForStatement(node) {
+ // Grammar checking
+ if (!checkGrammarStatementInAmbientContext(node)) {
+ if (node.initializer && node.initializer.kind === 212 /* VariableDeclarationList */) {
+ checkGrammarVariableDeclarationList(node.initializer);
+ }
+ }
+ if (node.initializer) {
+ if (node.initializer.kind === 212 /* VariableDeclarationList */) {
+ ts.forEach(node.initializer.declarations, checkVariableDeclaration);
+ }
+ else {
+ checkExpression(node.initializer);
+ }
+ }
+ if (node.condition)
+ checkExpression(node.condition);
+ if (node.incrementor)
+ checkExpression(node.incrementor);
+ checkSourceElement(node.statement);
+ }
+ function checkForOfStatement(node) {
+ checkGrammarForInOrForOfStatement(node);
+ // Check the LHS and RHS
+ // If the LHS is a declaration, just check it as a variable declaration, which will in turn check the RHS
+ // via checkRightHandSideOfForOf.
+ // If the LHS is an expression, check the LHS, as a destructuring assignment or as a reference.
+ // Then check that the RHS is assignable to it.
+ if (node.initializer.kind === 212 /* VariableDeclarationList */) {
+ checkForInOrForOfVariableDeclaration(node);
+ }
+ else {
+ var varExpr = node.initializer;
+ var iteratedType = checkRightHandSideOfForOf(node.expression);
+ // There may be a destructuring assignment on the left side
+ if (varExpr.kind === 164 /* ArrayLiteralExpression */ || varExpr.kind === 165 /* ObjectLiteralExpression */) {
+ // iteratedType may be undefined. In this case, we still want to check the structure of
+ // varExpr, in particular making sure it's a valid LeftHandSideExpression. But we'd like
+ // to short circuit the type relation checking as much as possible, so we pass the unknownType.
+ checkDestructuringAssignment(varExpr, iteratedType || unknownType);
+ }
+ else {
+ var leftType = checkExpression(varExpr);
+ checkReferenceExpression(varExpr, /*invalidReferenceMessage*/ ts.Diagnostics.Invalid_left_hand_side_in_for_of_statement,
+ /*constantVariableMessage*/ ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_cannot_be_a_previously_defined_constant);
+ // iteratedType will be undefined if the rightType was missing properties/signatures
+ // required to get its iteratedType (like [Symbol.iterator] or next). This may be
+ // because we accessed properties from anyType, or it may have led to an error inside
+ // getElementTypeOfIterable.
+ if (iteratedType) {
+ checkTypeAssignableTo(iteratedType, leftType, varExpr, /*headMessage*/ undefined);
+ }
+ }
+ }
+ checkSourceElement(node.statement);
+ }
+ function checkForInStatement(node) {
+ // Grammar checking
+ checkGrammarForInOrForOfStatement(node);
+ // TypeScript 1.0 spec (April 2014): 5.4
+ // In a 'for-in' statement of the form
+ // for (let VarDecl in Expr) Statement
+ // VarDecl must be a variable declaration without a type annotation that declares a variable of type Any,
+ // and Expr must be an expression of type Any, an object type, or a type parameter type.
+ if (node.initializer.kind === 212 /* VariableDeclarationList */) {
+ var variable = node.initializer.declarations[0];
+ if (variable && ts.isBindingPattern(variable.name)) {
+ error(variable.name, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
+ }
+ checkForInOrForOfVariableDeclaration(node);
+ }
+ else {
+ // In a 'for-in' statement of the form
+ // for (Var in Expr) Statement
+ // Var must be an expression classified as a reference of type Any or the String primitive type,
+ // and Expr must be an expression of type Any, an object type, or a type parameter type.
+ var varExpr = node.initializer;
+ var leftType = checkExpression(varExpr);
+ if (varExpr.kind === 164 /* ArrayLiteralExpression */ || varExpr.kind === 165 /* ObjectLiteralExpression */) {
+ error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern);
+ }
+ else if (!isTypeAnyOrAllConstituentTypesHaveKind(leftType, 258 /* StringLike */)) {
+ error(varExpr, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any);
+ }
+ else {
+ // run check only former check succeeded to avoid cascading errors
+ checkReferenceExpression(varExpr, ts.Diagnostics.Invalid_left_hand_side_in_for_in_statement, ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_be_a_previously_defined_constant);
+ }
+ }
+ var rightType = checkExpression(node.expression);
+ // unknownType is returned i.e. if node.expression is identifier whose name cannot be resolved
+ // in this case error about missing name is already reported - do not report extra one
+ if (!isTypeAnyOrAllConstituentTypesHaveKind(rightType, 80896 /* ObjectType */ | 512 /* TypeParameter */)) {
+ error(node.expression, ts.Diagnostics.The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter);
+ }
+ checkSourceElement(node.statement);
+ }
+ function checkForInOrForOfVariableDeclaration(iterationStatement) {
+ var variableDeclarationList = iterationStatement.initializer;
+ // checkGrammarForInOrForOfStatement will check that there is exactly one declaration.
+ if (variableDeclarationList.declarations.length >= 1) {
+ var decl = variableDeclarationList.declarations[0];
+ checkVariableDeclaration(decl);
+ }
+ }
+ function checkRightHandSideOfForOf(rhsExpression) {
+ var expressionType = getTypeOfExpression(rhsExpression);
+ return checkIteratedTypeOrElementType(expressionType, rhsExpression, /*allowStringInput*/ true);
+ }
+ function checkIteratedTypeOrElementType(inputType, errorNode, allowStringInput) {
+ if (isTypeAny(inputType)) {
+ return inputType;
+ }
+ if (languageVersion >= 2 /* ES6 */) {
+ return checkElementTypeOfIterable(inputType, errorNode);
+ }
+ if (allowStringInput) {
+ return checkElementTypeOfArrayOrString(inputType, errorNode);
+ }
+ if (isArrayLikeType(inputType)) {
+ var indexType = getIndexTypeOfType(inputType, 1 /* Number */);
+ if (indexType) {
+ return indexType;
+ }
+ }
+ error(errorNode, ts.Diagnostics.Type_0_is_not_an_array_type, typeToString(inputType));
+ return unknownType;
+ }
+ /**
+ * When errorNode is undefined, it means we should not report any errors.
+ */
+ function checkElementTypeOfIterable(iterable, errorNode) {
+ var elementType = getElementTypeOfIterable(iterable, errorNode);
+ // Now even though we have extracted the iteratedType, we will have to validate that the type
+ // passed in is actually an Iterable.
+ if (errorNode && elementType) {
+ checkTypeAssignableTo(iterable, createIterableType(elementType), errorNode);
+ }
+ return elementType || anyType;
+ }
+ /**
+ * We want to treat type as an iterable, and get the type it is an iterable of. The iterable
+ * must have the following structure (annotated with the names of the variables below):
+ *
+ * { // iterable
+ * [Symbol.iterator]: { // iteratorFunction
+ * (): Iterator<T>
+ * }
+ * }
+ *
+ * T is the type we are after. At every level that involves analyzing return types
+ * of signatures, we union the return types of all the signatures.
+ *
+ * Another thing to note is that at any step of this process, we could run into a dead end,
+ * meaning either the property is missing, or we run into the anyType. If either of these things
+ * happens, we return undefined to signal that we could not find the iterated type. If a property
+ * is missing, and the previous step did not result in 'any', then we also give an error if the
+ * caller requested it. Then the caller can decide what to do in the case where there is no iterated
+ * type. This is different from returning anyType, because that would signify that we have matched the
+ * whole pattern and that T (above) is 'any'.
+ */
+ function getElementTypeOfIterable(type, errorNode) {
+ if (isTypeAny(type)) {
+ return undefined;
+ }
+ var typeAsIterable = type;
+ if (!typeAsIterable.iterableElementType) {
+ // As an optimization, if the type is instantiated directly using the globalIterableType (Iterable<number>),
+ // then just grab its type argument.
+ if ((type.flags & 4096 /* Reference */) && type.target === globalIterableType) {
+ typeAsIterable.iterableElementType = type.typeArguments[0];
+ }
+ else {
+ var iteratorFunction = getTypeOfPropertyOfType(type, ts.getPropertyNameForKnownSymbolName("iterator"));
+ if (isTypeAny(iteratorFunction)) {
+ return undefined;
+ }
+ var iteratorFunctionSignatures = iteratorFunction ? getSignaturesOfType(iteratorFunction, 0 /* Call */) : emptyArray;
+ if (iteratorFunctionSignatures.length === 0) {
+ if (errorNode) {
+ error(errorNode, ts.Diagnostics.Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator);
+ }
+ return undefined;
+ }
+ typeAsIterable.iterableElementType = getElementTypeOfIterator(getUnionType(ts.map(iteratorFunctionSignatures, getReturnTypeOfSignature)), errorNode);
+ }
+ }
+ return typeAsIterable.iterableElementType;
+ }
+ /**
+ * This function has very similar logic as getElementTypeOfIterable, except that it operates on
+ * Iterators instead of Iterables. Here is the structure:
+ *
+ * { // iterator
+ * next: { // iteratorNextFunction
+ * (): { // iteratorNextResult
+ * value: T // iteratorNextValue
+ * }
+ * }
+ * }
+ *
+ */
+ function getElementTypeOfIterator(type, errorNode) {
+ if (isTypeAny(type)) {
+ return undefined;
+ }
+ var typeAsIterator = type;
+ if (!typeAsIterator.iteratorElementType) {
+ // As an optimization, if the type is instantiated directly using the globalIteratorType (Iterator<number>),
+ // then just grab its type argument.
+ if ((type.flags & 4096 /* Reference */) && type.target === globalIteratorType) {
+ typeAsIterator.iteratorElementType = type.typeArguments[0];
+ }
+ else {
+ var iteratorNextFunction = getTypeOfPropertyOfType(type, "next");
+ if (isTypeAny(iteratorNextFunction)) {
+ return undefined;
+ }
+ var iteratorNextFunctionSignatures = iteratorNextFunction ? getSignaturesOfType(iteratorNextFunction, 0 /* Call */) : emptyArray;
+ if (iteratorNextFunctionSignatures.length === 0) {
+ if (errorNode) {
+ error(errorNode, ts.Diagnostics.An_iterator_must_have_a_next_method);
+ }
+ return undefined;
+ }
+ var iteratorNextResult = getUnionType(ts.map(iteratorNextFunctionSignatures, getReturnTypeOfSignature));
+ if (isTypeAny(iteratorNextResult)) {
+ return undefined;
+ }
+ var iteratorNextValue = getTypeOfPropertyOfType(iteratorNextResult, "value");
+ if (!iteratorNextValue) {
+ if (errorNode) {
+ error(errorNode, ts.Diagnostics.The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property);
+ }
+ return undefined;
+ }
+ typeAsIterator.iteratorElementType = iteratorNextValue;
+ }
+ }
+ return typeAsIterator.iteratorElementType;
+ }
+ function getElementTypeOfIterableIterator(type) {
+ if (isTypeAny(type)) {
+ return undefined;
+ }
+ // As an optimization, if the type is instantiated directly using the globalIterableIteratorType (IterableIterator<number>),
+ // then just grab its type argument.
+ if ((type.flags & 4096 /* Reference */) && type.target === globalIterableIteratorType) {
+ return type.typeArguments[0];
+ }
+ return getElementTypeOfIterable(type, /*errorNode*/ undefined) ||
+ getElementTypeOfIterator(type, /*errorNode*/ undefined);
+ }
+ /**
+ * This function does the following steps:
+ * 1. Break up arrayOrStringType (possibly a union) into its string constituents and array constituents.
+ * 2. Take the element types of the array constituents.
+ * 3. Return the union of the element types, and string if there was a string constitutent.
+ *
+ * For example:
+ * string -> string
+ * number[] -> number
+ * string[] | number[] -> string | number
+ * string | number[] -> string | number
+ * string | string[] | number[] -> string | number
+ *
+ * It also errors if:
+ * 1. Some constituent is neither a string nor an array.
+ * 2. Some constituent is a string and target is less than ES5 (because in ES3 string is not indexable).
+ */
+ function checkElementTypeOfArrayOrString(arrayOrStringType, errorNode) {
+ ts.Debug.assert(languageVersion < 2 /* ES6 */);
+ // After we remove all types that are StringLike, we will know if there was a string constituent
+ // based on whether the remaining type is the same as the initial type.
+ var arrayType = removeTypesFromUnionType(arrayOrStringType, 258 /* StringLike */, /*isTypeOfKind*/ true, /*allowEmptyUnionResult*/ true);
+ var hasStringConstituent = arrayOrStringType !== arrayType;
+ var reportedError = false;
+ if (hasStringConstituent) {
+ if (languageVersion < 1 /* ES5 */) {
+ error(errorNode, ts.Diagnostics.Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher);
+ reportedError = true;
+ }
+ // Now that we've removed all the StringLike types, if no constituents remain, then the entire
+ // arrayOrStringType was a string.
+ if (arrayType === emptyObjectType) {
+ return stringType;
+ }
+ }
+ if (!isArrayLikeType(arrayType)) {
+ if (!reportedError) {
+ // Which error we report depends on whether there was a string constituent. For example,
+ // if the input type is number | string, we want to say that number is not an array type.
+ // But if the input was just number, we want to say that number is not an array type
+ // or a string type.
+ var diagnostic = hasStringConstituent
+ ? ts.Diagnostics.Type_0_is_not_an_array_type
+ : ts.Diagnostics.Type_0_is_not_an_array_type_or_a_string_type;
+ error(errorNode, diagnostic, typeToString(arrayType));
+ }
+ return hasStringConstituent ? stringType : unknownType;
+ }
+ var arrayElementType = getIndexTypeOfType(arrayType, 1 /* Number */) || unknownType;
+ if (hasStringConstituent) {
+ // This is just an optimization for the case where arrayOrStringType is string | string[]
+ if (arrayElementType.flags & 258 /* StringLike */) {
+ return stringType;
+ }
+ return getUnionType([arrayElementType, stringType]);
+ }
+ return arrayElementType;
+ }
+ function checkBreakOrContinueStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node) || checkGrammarBreakOrContinueStatement(node);
+ // TODO: Check that target label is valid
+ }
+ function isGetAccessorWithAnnotatatedSetAccessor(node) {
+ return !!(node.kind === 145 /* GetAccessor */ && ts.getSetAccessorTypeAnnotationNode(ts.getDeclarationOfKind(node.symbol, 146 /* SetAccessor */)));
+ }
+ function checkReturnStatement(node) {
+ // Grammar checking
+ if (!checkGrammarStatementInAmbientContext(node)) {
+ var functionBlock = ts.getContainingFunction(node);
+ if (!functionBlock) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.A_return_statement_can_only_be_used_within_a_function_body);
+ }
+ }
+ if (node.expression) {
+ var func = ts.getContainingFunction(node);
+ if (func) {
+ var signature = getSignatureFromDeclaration(func);
+ var returnType = getReturnTypeOfSignature(signature);
+ var exprType = checkExpressionCached(node.expression);
+ if (func.asteriskToken) {
+ // A generator does not need its return expressions checked against its return type.
+ // Instead, the yield expressions are checked against the element type.
+ // TODO: Check return expressions of generators when return type tracking is added
+ // for generators.
+ return;
+ }
+ if (func.kind === 146 /* SetAccessor */) {
+ error(node.expression, ts.Diagnostics.Setters_cannot_return_a_value);
+ }
+ else if (func.kind === 144 /* Constructor */) {
+ if (!isTypeAssignableTo(exprType, returnType)) {
+ error(node.expression, ts.Diagnostics.Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class);
+ }
+ }
+ else if (func.type || isGetAccessorWithAnnotatatedSetAccessor(func) || signature.typePredicate) {
+ if (ts.isAsyncFunctionLike(func)) {
+ var promisedType = getPromisedType(returnType);
+ var awaitedType = checkAwaitedType(exprType, node.expression, ts.Diagnostics.Return_expression_in_async_function_does_not_have_a_valid_callable_then_member);
+ if (promisedType) {
+ // If the function has a return type, but promisedType is
+ // undefined, an error will be reported in checkAsyncFunctionReturnType
+ // so we don't need to report one here.
+ checkTypeAssignableTo(awaitedType, promisedType, node.expression);
+ }
+ }
+ else {
+ checkTypeAssignableTo(exprType, returnType, node.expression);
+ }
+ }
+ }
+ }
+ }
+ function checkWithStatement(node) {
+ // Grammar checking for withStatement
+ if (!checkGrammarStatementInAmbientContext(node)) {
+ if (node.parserContextFlags & 8 /* Await */) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_an_async_function_block);
+ }
+ }
+ checkExpression(node.expression);
+ error(node.expression, ts.Diagnostics.All_symbols_within_a_with_block_will_be_resolved_to_any);
+ }
+ function checkSwitchStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ var firstDefaultClause;
+ var hasDuplicateDefaultClause = false;
+ var expressionType = checkExpression(node.expression);
+ ts.forEach(node.caseBlock.clauses, function (clause) {
+ // Grammar check for duplicate default clauses, skip if we already report duplicate default clause
+ if (clause.kind === 242 /* DefaultClause */ && !hasDuplicateDefaultClause) {
+ if (firstDefaultClause === undefined) {
+ firstDefaultClause = clause;
+ }
+ else {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ var start = ts.skipTrivia(sourceFile.text, clause.pos);
+ var end = clause.statements.length > 0 ? clause.statements[0].pos : clause.end;
+ grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.A_default_clause_cannot_appear_more_than_once_in_a_switch_statement);
+ hasDuplicateDefaultClause = true;
+ }
+ }
+ if (produceDiagnostics && clause.kind === 241 /* CaseClause */) {
+ var caseClause = clause;
+ // TypeScript 1.0 spec (April 2014):5.9
+ // In a 'switch' statement, each 'case' expression must be of a type that is assignable to or from the type of the 'switch' expression.
+ var caseType = checkExpression(caseClause.expression);
+ if (!isTypeAssignableTo(expressionType, caseType)) {
+ // check 'expressionType isAssignableTo caseType' failed, try the reversed check and report errors if it fails
+ checkTypeAssignableTo(caseType, expressionType, caseClause.expression, /*headMessage*/ undefined);
+ }
+ }
+ ts.forEach(clause.statements, checkSourceElement);
+ });
+ }
+ function checkLabeledStatement(node) {
+ // Grammar checking
+ if (!checkGrammarStatementInAmbientContext(node)) {
+ var current = node.parent;
+ while (current) {
+ if (ts.isFunctionLike(current)) {
+ break;
+ }
+ if (current.kind === 207 /* LabeledStatement */ && current.label.text === node.label.text) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ grammarErrorOnNode(node.label, ts.Diagnostics.Duplicate_label_0, ts.getTextOfNodeFromSourceText(sourceFile.text, node.label));
+ break;
+ }
+ current = current.parent;
+ }
+ }
+ // ensure that label is unique
+ checkSourceElement(node.statement);
+ }
+ function checkThrowStatement(node) {
+ // Grammar checking
+ if (!checkGrammarStatementInAmbientContext(node)) {
+ if (node.expression === undefined) {
+ grammarErrorAfterFirstToken(node, ts.Diagnostics.Line_break_not_permitted_here);
+ }
+ }
+ if (node.expression) {
+ checkExpression(node.expression);
+ }
+ }
+ function checkTryStatement(node) {
+ // Grammar checking
+ checkGrammarStatementInAmbientContext(node);
+ checkBlock(node.tryBlock);
+ var catchClause = node.catchClause;
+ if (catchClause) {
+ // Grammar checking
+ if (catchClause.variableDeclaration) {
+ if (catchClause.variableDeclaration.name.kind !== 69 /* Identifier */) {
+ grammarErrorOnFirstToken(catchClause.variableDeclaration.name, ts.Diagnostics.Catch_clause_variable_name_must_be_an_identifier);
+ }
+ else if (catchClause.variableDeclaration.type) {
+ grammarErrorOnFirstToken(catchClause.variableDeclaration.type, ts.Diagnostics.Catch_clause_variable_cannot_have_a_type_annotation);
+ }
+ else if (catchClause.variableDeclaration.initializer) {
+ grammarErrorOnFirstToken(catchClause.variableDeclaration.initializer, ts.Diagnostics.Catch_clause_variable_cannot_have_an_initializer);
+ }
+ else {
+ var identifierName = catchClause.variableDeclaration.name.text;
+ var locals = catchClause.block.locals;
+ if (locals && ts.hasProperty(locals, identifierName)) {
+ var localSymbol = locals[identifierName];
+ if (localSymbol && (localSymbol.flags & 2 /* BlockScopedVariable */) !== 0) {
+ grammarErrorOnNode(localSymbol.valueDeclaration, ts.Diagnostics.Cannot_redeclare_identifier_0_in_catch_clause, identifierName);
+ }
+ }
+ }
+ }
+ checkBlock(catchClause.block);
+ }
+ if (node.finallyBlock) {
+ checkBlock(node.finallyBlock);
+ }
+ }
+ function checkIndexConstraints(type) {
+ var declaredNumberIndexer = getIndexDeclarationOfSymbol(type.symbol, 1 /* Number */);
+ var declaredStringIndexer = getIndexDeclarationOfSymbol(type.symbol, 0 /* String */);
+ var stringIndexType = getIndexTypeOfType(type, 0 /* String */);
+ var numberIndexType = getIndexTypeOfType(type, 1 /* Number */);
+ if (stringIndexType || numberIndexType) {
+ ts.forEach(getPropertiesOfObjectType(type), function (prop) {
+ var propType = getTypeOfSymbol(prop);
+ checkIndexConstraintForProperty(prop, propType, type, declaredStringIndexer, stringIndexType, 0 /* String */);
+ checkIndexConstraintForProperty(prop, propType, type, declaredNumberIndexer, numberIndexType, 1 /* Number */);
+ });
+ if (type.flags & 1024 /* Class */ && ts.isClassLike(type.symbol.valueDeclaration)) {
+ var classDeclaration = type.symbol.valueDeclaration;
+ for (var _i = 0, _a = classDeclaration.members; _i < _a.length; _i++) {
+ var member = _a[_i];
+ // Only process instance properties with computed names here.
+ // Static properties cannot be in conflict with indexers,
+ // and properties with literal names were already checked.
+ if (!(member.flags & 128 /* Static */) && ts.hasDynamicName(member)) {
+ var propType = getTypeOfSymbol(member.symbol);
+ checkIndexConstraintForProperty(member.symbol, propType, type, declaredStringIndexer, stringIndexType, 0 /* String */);
+ checkIndexConstraintForProperty(member.symbol, propType, type, declaredNumberIndexer, numberIndexType, 1 /* Number */);
+ }
+ }
+ }
+ }
+ var errorNode;
+ if (stringIndexType && numberIndexType) {
+ errorNode = declaredNumberIndexer || declaredStringIndexer;
+ // condition 'errorNode === undefined' may appear if types does not declare nor string neither number indexer
+ if (!errorNode && (type.flags & 2048 /* Interface */)) {
+ var someBaseTypeHasBothIndexers = ts.forEach(getBaseTypes(type), function (base) { return getIndexTypeOfType(base, 0 /* String */) && getIndexTypeOfType(base, 1 /* Number */); });
+ errorNode = someBaseTypeHasBothIndexers ? undefined : type.symbol.declarations[0];
+ }
+ }
+ if (errorNode && !isTypeAssignableTo(numberIndexType, stringIndexType)) {
+ error(errorNode, ts.Diagnostics.Numeric_index_type_0_is_not_assignable_to_string_index_type_1, typeToString(numberIndexType), typeToString(stringIndexType));
+ }
+ function checkIndexConstraintForProperty(prop, propertyType, containingType, indexDeclaration, indexType, indexKind) {
+ if (!indexType) {
+ return;
+ }
+ // index is numeric and property name is not valid numeric literal
+ if (indexKind === 1 /* Number */ && !isNumericName(prop.valueDeclaration.name)) {
+ return;
+ }
+ // perform property check if property or indexer is declared in 'type'
+ // this allows to rule out cases when both property and indexer are inherited from the base class
+ var errorNode;
+ if (prop.valueDeclaration.name.kind === 136 /* ComputedPropertyName */ || prop.parent === containingType.symbol) {
+ errorNode = prop.valueDeclaration;
+ }
+ else if (indexDeclaration) {
+ errorNode = indexDeclaration;
+ }
+ else if (containingType.flags & 2048 /* Interface */) {
+ // for interfaces property and indexer might be inherited from different bases
+ // check if any base class already has both property and indexer.
+ // check should be performed only if 'type' is the first type that brings property\indexer together
+ var someBaseClassHasBothPropertyAndIndexer = ts.forEach(getBaseTypes(containingType), function (base) { return getPropertyOfObjectType(base, prop.name) && getIndexTypeOfType(base, indexKind); });
+ errorNode = someBaseClassHasBothPropertyAndIndexer ? undefined : containingType.symbol.declarations[0];
+ }
+ if (errorNode && !isTypeAssignableTo(propertyType, indexType)) {
+ var errorMessage = indexKind === 0 /* String */
+ ? ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_string_index_type_2
+ : ts.Diagnostics.Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2;
+ error(errorNode, errorMessage, symbolToString(prop), typeToString(propertyType), typeToString(indexType));
+ }
+ }
+ }
+ function checkTypeNameIsReserved(name, message) {
+ // TS 1.0 spec (April 2014): 3.6.1
+ // The predefined type keywords are reserved and cannot be used as names of user defined types.
+ switch (name.text) {
+ case "any":
+ case "number":
+ case "boolean":
+ case "string":
+ case "symbol":
+ case "void":
+ error(name, message, name.text);
+ }
+ }
+ // Check each type parameter and check that list has no duplicate type parameter declarations
+ function checkTypeParameters(typeParameterDeclarations) {
+ if (typeParameterDeclarations) {
+ for (var i = 0, n = typeParameterDeclarations.length; i < n; i++) {
+ var node = typeParameterDeclarations[i];
+ checkTypeParameter(node);
+ if (produceDiagnostics) {
+ for (var j = 0; j < i; j++) {
+ if (typeParameterDeclarations[j].symbol === node.symbol) {
+ error(node.name, ts.Diagnostics.Duplicate_identifier_0, ts.declarationNameToString(node.name));
+ }
+ }
+ }
+ }
+ }
+ }
+ function checkClassExpression(node) {
+ checkClassLikeDeclaration(node);
+ return getTypeOfSymbol(getSymbolOfNode(node));
+ }
+ function checkClassDeclaration(node) {
+ if (!node.name && !(node.flags & 1024 /* Default */)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.A_class_declaration_without_the_default_modifier_must_have_a_name);
+ }
+ checkClassLikeDeclaration(node);
+ ts.forEach(node.members, checkSourceElement);
+ }
+ function checkClassLikeDeclaration(node) {
+ checkGrammarClassDeclarationHeritageClauses(node);
+ checkDecorators(node);
+ if (node.name) {
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Class_name_cannot_be_0);
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ }
+ checkTypeParameters(node.typeParameters);
+ checkExportsOnMergedDeclarations(node);
+ var symbol = getSymbolOfNode(node);
+ var type = getDeclaredTypeOfSymbol(symbol);
+ var typeWithThis = getTypeWithThisArgument(type);
+ var staticType = getTypeOfSymbol(symbol);
+ var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
+ if (baseTypeNode) {
+ emitExtends = emitExtends || !ts.isInAmbientContext(node);
+ var baseTypes = getBaseTypes(type);
+ if (baseTypes.length && produceDiagnostics) {
+ var baseType = baseTypes[0];
+ var staticBaseType = getBaseConstructorTypeOfClass(type);
+ checkSourceElement(baseTypeNode.expression);
+ if (baseTypeNode.typeArguments) {
+ ts.forEach(baseTypeNode.typeArguments, checkSourceElement);
+ for (var _i = 0, _a = getConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments); _i < _a.length; _i++) {
+ var constructor = _a[_i];
+ if (!checkTypeArgumentConstraints(constructor.typeParameters, baseTypeNode.typeArguments)) {
+ break;
+ }
+ }
+ }
+ checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(baseType, type.thisType), node.name || node, ts.Diagnostics.Class_0_incorrectly_extends_base_class_1);
+ checkTypeAssignableTo(staticType, getTypeWithoutSignatures(staticBaseType), node.name || node, ts.Diagnostics.Class_static_side_0_incorrectly_extends_base_class_static_side_1);
+ if (!(staticBaseType.symbol && staticBaseType.symbol.flags & 32 /* Class */)) {
+ // When the static base type is a "class-like" constructor function (but not actually a class), we verify
+ // that all instantiated base constructor signatures return the same type. We can simply compare the type
+ // references (as opposed to checking the structure of the types) because elsewhere we have already checked
+ // that the base type is a class or interface type (and not, for example, an anonymous object type).
+ var constructors = getInstantiatedConstructorsForTypeArguments(staticBaseType, baseTypeNode.typeArguments);
+ if (ts.forEach(constructors, function (sig) { return getReturnTypeOfSignature(sig) !== baseType; })) {
+ error(baseTypeNode.expression, ts.Diagnostics.Base_constructors_must_all_have_the_same_return_type);
+ }
+ }
+ checkKindsOfPropertyMemberOverrides(type, baseType);
+ }
+ }
+ var implementedTypeNodes = ts.getClassImplementsHeritageClauseElements(node);
+ if (implementedTypeNodes) {
+ for (var _b = 0; _b < implementedTypeNodes.length; _b++) {
+ var typeRefNode = implementedTypeNodes[_b];
+ if (!ts.isSupportedExpressionWithTypeArguments(typeRefNode)) {
+ error(typeRefNode.expression, ts.Diagnostics.A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments);
+ }
+ checkTypeReferenceNode(typeRefNode);
+ if (produceDiagnostics) {
+ var t = getTypeFromTypeNode(typeRefNode);
+ if (t !== unknownType) {
+ var declaredType = (t.flags & 4096 /* Reference */) ? t.target : t;
+ if (declaredType.flags & (1024 /* Class */ | 2048 /* Interface */)) {
+ checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(t, type.thisType), node.name || node, ts.Diagnostics.Class_0_incorrectly_implements_interface_1);
+ }
+ else {
+ error(typeRefNode, ts.Diagnostics.A_class_may_only_implement_another_class_or_interface);
+ }
+ }
+ }
+ }
+ }
+ if (produceDiagnostics) {
+ checkIndexConstraints(type);
+ checkTypeForDuplicateIndexSignatures(node);
+ }
+ }
+ function getTargetSymbol(s) {
+ // if symbol is instantiated its flags are not copied from the 'target'
+ // so we'll need to get back original 'target' symbol to work with correct set of flags
+ return s.flags & 16777216 /* Instantiated */ ? getSymbolLinks(s).target : s;
+ }
+ function getClassLikeDeclarationOfSymbol(symbol) {
+ return ts.forEach(symbol.declarations, function (d) { return ts.isClassLike(d) ? d : undefined; });
+ }
+ function checkKindsOfPropertyMemberOverrides(type, baseType) {
+ // TypeScript 1.0 spec (April 2014): 8.2.3
+ // A derived class inherits all members from its base class it doesn't override.
+ // Inheritance means that a derived class implicitly contains all non - overridden members of the base class.
+ // Both public and private property members are inherited, but only public property members can be overridden.
+ // A property member in a derived class is said to override a property member in a base class
+ // when the derived class property member has the same name and kind(instance or static)
+ // as the base class property member.
+ // The type of an overriding property member must be assignable(section 3.8.4)
+ // to the type of the overridden property member, or otherwise a compile - time error occurs.
+ // Base class instance member functions can be overridden by derived class instance member functions,
+ // but not by other kinds of members.
+ // Base class instance member variables and accessors can be overridden by
+ // derived class instance member variables and accessors, but not by other kinds of members.
+ // NOTE: assignability is checked in checkClassDeclaration
+ var baseProperties = getPropertiesOfObjectType(baseType);
+ for (var _i = 0; _i < baseProperties.length; _i++) {
+ var baseProperty = baseProperties[_i];
+ var base = getTargetSymbol(baseProperty);
+ if (base.flags & 134217728 /* Prototype */) {
+ continue;
+ }
+ var derived = getTargetSymbol(getPropertyOfObjectType(type, base.name));
+ var baseDeclarationFlags = getDeclarationFlagsFromSymbol(base);
+ ts.Debug.assert(!!derived, "derived should point to something, even if it is the base class' declaration.");
+ if (derived) {
+ // In order to resolve whether the inherited method was overriden in the base class or not,
+ // we compare the Symbols obtained. Since getTargetSymbol returns the symbol on the *uninstantiated*
+ // type declaration, derived and base resolve to the same symbol even in the case of generic classes.
+ if (derived === base) {
+ // derived class inherits base without override/redeclaration
+ var derivedClassDecl = getClassLikeDeclarationOfSymbol(type.symbol);
+ // It is an error to inherit an abstract member without implementing it or being declared abstract.
+ // If there is no declaration for the derived class (as in the case of class expressions),
+ // then the class cannot be declared abstract.
+ if (baseDeclarationFlags & 256 /* Abstract */ && (!derivedClassDecl || !(derivedClassDecl.flags & 256 /* Abstract */))) {
+ if (derivedClassDecl.kind === 186 /* ClassExpression */) {
+ error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1, symbolToString(baseProperty), typeToString(baseType));
+ }
+ else {
+ error(derivedClassDecl, ts.Diagnostics.Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2, typeToString(type), symbolToString(baseProperty), typeToString(baseType));
+ }
+ }
+ }
+ else {
+ // derived overrides base.
+ var derivedDeclarationFlags = getDeclarationFlagsFromSymbol(derived);
+ if ((baseDeclarationFlags & 32 /* Private */) || (derivedDeclarationFlags & 32 /* Private */)) {
+ // either base or derived property is private - not override, skip it
+ continue;
+ }
+ if ((baseDeclarationFlags & 128 /* Static */) !== (derivedDeclarationFlags & 128 /* Static */)) {
+ // value of 'static' is not the same for properties - not override, skip it
+ continue;
+ }
+ if ((base.flags & derived.flags & 8192 /* Method */) || ((base.flags & 98308 /* PropertyOrAccessor */) && (derived.flags & 98308 /* PropertyOrAccessor */))) {
+ // method is overridden with method or property/accessor is overridden with property/accessor - correct case
+ continue;
+ }
+ var errorMessage = void 0;
+ if (base.flags & 8192 /* Method */) {
+ if (derived.flags & 98304 /* Accessor */) {
+ errorMessage = ts.Diagnostics.Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor;
+ }
+ else {
+ ts.Debug.assert((derived.flags & 4 /* Property */) !== 0);
+ errorMessage = ts.Diagnostics.Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_property;
+ }
+ }
+ else if (base.flags & 4 /* Property */) {
+ ts.Debug.assert((derived.flags & 8192 /* Method */) !== 0);
+ errorMessage = ts.Diagnostics.Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function;
+ }
+ else {
+ ts.Debug.assert((base.flags & 98304 /* Accessor */) !== 0);
+ ts.Debug.assert((derived.flags & 8192 /* Method */) !== 0);
+ errorMessage = ts.Diagnostics.Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function;
+ }
+ error(derived.valueDeclaration.name, errorMessage, typeToString(baseType), symbolToString(base), typeToString(type));
+ }
+ }
+ }
+ }
+ function isAccessor(kind) {
+ return kind === 145 /* GetAccessor */ || kind === 146 /* SetAccessor */;
+ }
+ function areTypeParametersIdentical(list1, list2) {
+ if (!list1 && !list2) {
+ return true;
+ }
+ if (!list1 || !list2 || list1.length !== list2.length) {
+ return false;
+ }
+ // TypeScript 1.0 spec (April 2014):
+ // When a generic interface has multiple declarations, all declarations must have identical type parameter
+ // lists, i.e. identical type parameter names with identical constraints in identical order.
+ for (var i = 0, len = list1.length; i < len; i++) {
+ var tp1 = list1[i];
+ var tp2 = list2[i];
+ if (tp1.name.text !== tp2.name.text) {
+ return false;
+ }
+ if (!tp1.constraint && !tp2.constraint) {
+ continue;
+ }
+ if (!tp1.constraint || !tp2.constraint) {
+ return false;
+ }
+ if (!isTypeIdenticalTo(getTypeFromTypeNode(tp1.constraint), getTypeFromTypeNode(tp2.constraint))) {
+ return false;
+ }
+ }
+ return true;
+ }
+ function checkInheritedPropertiesAreIdentical(type, typeNode) {
+ var baseTypes = getBaseTypes(type);
+ if (baseTypes.length < 2) {
+ return true;
+ }
+ var seen = {};
+ ts.forEach(resolveDeclaredMembers(type).declaredProperties, function (p) { seen[p.name] = { prop: p, containingType: type }; });
+ var ok = true;
+ for (var _i = 0; _i < baseTypes.length; _i++) {
+ var base = baseTypes[_i];
+ var properties = getPropertiesOfObjectType(getTypeWithThisArgument(base, type.thisType));
+ for (var _a = 0; _a < properties.length; _a++) {
+ var prop = properties[_a];
+ if (!ts.hasProperty(seen, prop.name)) {
+ seen[prop.name] = { prop: prop, containingType: base };
+ }
+ else {
+ var existing = seen[prop.name];
+ var isInheritedProperty = existing.containingType !== type;
+ if (isInheritedProperty && !isPropertyIdenticalTo(existing.prop, prop)) {
+ ok = false;
+ var typeName1 = typeToString(existing.containingType);
+ var typeName2 = typeToString(base);
+ var errorInfo = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.Named_property_0_of_types_1_and_2_are_not_identical, symbolToString(prop), typeName1, typeName2);
+ errorInfo = ts.chainDiagnosticMessages(errorInfo, ts.Diagnostics.Interface_0_cannot_simultaneously_extend_types_1_and_2, typeToString(type), typeName1, typeName2);
+ diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(typeNode, errorInfo));
+ }
+ }
+ }
+ }
+ return ok;
+ }
+ function checkInterfaceDeclaration(node) {
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarInterfaceDeclaration(node);
+ checkTypeParameters(node.typeParameters);
+ if (produceDiagnostics) {
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Interface_name_cannot_be_0);
+ checkExportsOnMergedDeclarations(node);
+ var symbol = getSymbolOfNode(node);
+ var firstInterfaceDecl = ts.getDeclarationOfKind(symbol, 215 /* InterfaceDeclaration */);
+ if (symbol.declarations.length > 1) {
+ if (node !== firstInterfaceDecl && !areTypeParametersIdentical(firstInterfaceDecl.typeParameters, node.typeParameters)) {
+ error(node.name, ts.Diagnostics.All_declarations_of_an_interface_must_have_identical_type_parameters);
+ }
+ }
+ // Only check this symbol once
+ if (node === firstInterfaceDecl) {
+ var type = getDeclaredTypeOfSymbol(symbol);
+ var typeWithThis = getTypeWithThisArgument(type);
+ // run subsequent checks only if first set succeeded
+ if (checkInheritedPropertiesAreIdentical(type, node.name)) {
+ for (var _i = 0, _a = getBaseTypes(type); _i < _a.length; _i++) {
+ var baseType = _a[_i];
+ checkTypeAssignableTo(typeWithThis, getTypeWithThisArgument(baseType, type.thisType), node.name, ts.Diagnostics.Interface_0_incorrectly_extends_interface_1);
+ }
+ checkIndexConstraints(type);
+ }
+ }
+ }
+ ts.forEach(ts.getInterfaceBaseTypeNodes(node), function (heritageElement) {
+ if (!ts.isSupportedExpressionWithTypeArguments(heritageElement)) {
+ error(heritageElement.expression, ts.Diagnostics.An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments);
+ }
+ checkTypeReferenceNode(heritageElement);
+ });
+ ts.forEach(node.members, checkSourceElement);
+ if (produceDiagnostics) {
+ checkTypeForDuplicateIndexSignatures(node);
+ }
+ }
+ function checkTypeAliasDeclaration(node) {
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node);
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Type_alias_name_cannot_be_0);
+ checkSourceElement(node.type);
+ }
+ function computeEnumMemberValues(node) {
+ var nodeLinks = getNodeLinks(node);
+ if (!(nodeLinks.flags & 8192 /* EnumValuesComputed */)) {
+ var enumSymbol = getSymbolOfNode(node);
+ var enumType = getDeclaredTypeOfSymbol(enumSymbol);
+ var autoValue = 0; // set to undefined when enum member is non-constant
+ var ambient = ts.isInAmbientContext(node);
+ var enumIsConst = ts.isConst(node);
+ for (var _i = 0, _a = node.members; _i < _a.length; _i++) {
+ var member = _a[_i];
+ if (member.name.kind === 136 /* ComputedPropertyName */) {
+ error(member.name, ts.Diagnostics.Computed_property_names_are_not_allowed_in_enums);
+ }
+ else if (isNumericLiteralName(member.name.text)) {
+ error(member.name, ts.Diagnostics.An_enum_member_cannot_have_a_numeric_name);
+ }
+ var previousEnumMemberIsNonConstant = autoValue === undefined;
+ var initializer = member.initializer;
+ if (initializer) {
+ autoValue = computeConstantValueForEnumMemberInitializer(initializer, enumType, enumIsConst, ambient);
+ }
+ else if (ambient && !enumIsConst) {
+ // In ambient enum declarations that specify no const modifier, enum member declarations
+ // that omit a value are considered computed members (as opposed to having auto-incremented values assigned).
+ autoValue = undefined;
+ }
+ else if (previousEnumMemberIsNonConstant) {
+ // If the member declaration specifies no value, the member is considered a constant enum member.
+ // If the member is the first member in the enum declaration, it is assigned the value zero.
+ // Otherwise, it is assigned the value of the immediately preceding member plus one,
+ // and an error occurs if the immediately preceding member is not a constant enum member
+ error(member.name, ts.Diagnostics.Enum_member_must_have_initializer);
+ }
+ if (autoValue !== undefined) {
+ getNodeLinks(member).enumMemberValue = autoValue++;
+ }
+ }
+ nodeLinks.flags |= 8192 /* EnumValuesComputed */;
+ }
+ function computeConstantValueForEnumMemberInitializer(initializer, enumType, enumIsConst, ambient) {
+ // Controls if error should be reported after evaluation of constant value is completed
+ // Can be false if another more precise error was already reported during evaluation.
+ var reportError = true;
+ var value = evalConstant(initializer);
+ if (reportError) {
+ if (value === undefined) {
+ if (enumIsConst) {
+ error(initializer, ts.Diagnostics.In_const_enum_declarations_member_initializer_must_be_constant_expression);
+ }
+ else if (ambient) {
+ error(initializer, ts.Diagnostics.In_ambient_enum_declarations_member_initializer_must_be_constant_expression);
+ }
+ else {
+ // Only here do we need to check that the initializer is assignable to the enum type.
+ checkTypeAssignableTo(checkExpression(initializer), enumType, initializer, /*headMessage*/ undefined);
+ }
+ }
+ else if (enumIsConst) {
+ if (isNaN(value)) {
+ error(initializer, ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN);
+ }
+ else if (!isFinite(value)) {
+ error(initializer, ts.Diagnostics.const_enum_member_initializer_was_evaluated_to_a_non_finite_value);
+ }
+ }
+ }
+ return value;
+ function evalConstant(e) {
+ switch (e.kind) {
+ case 179 /* PrefixUnaryExpression */:
+ var value_1 = evalConstant(e.operand);
+ if (value_1 === undefined) {
+ return undefined;
+ }
+ switch (e.operator) {
+ case 35 /* PlusToken */: return value_1;
+ case 36 /* MinusToken */: return -value_1;
+ case 50 /* TildeToken */: return ~value_1;
+ }
+ return undefined;
+ case 181 /* BinaryExpression */:
+ var left = evalConstant(e.left);
+ if (left === undefined) {
+ return undefined;
+ }
+ var right = evalConstant(e.right);
+ if (right === undefined) {
+ return undefined;
+ }
+ switch (e.operatorToken.kind) {
+ case 47 /* BarToken */: return left | right;
+ case 46 /* AmpersandToken */: return left & right;
+ case 44 /* GreaterThanGreaterThanToken */: return left >> right;
+ case 45 /* GreaterThanGreaterThanGreaterThanToken */: return left >>> right;
+ case 43 /* LessThanLessThanToken */: return left << right;
+ case 48 /* CaretToken */: return left ^ right;
+ case 37 /* AsteriskToken */: return left * right;
+ case 39 /* SlashToken */: return left / right;
+ case 35 /* PlusToken */: return left + right;
+ case 36 /* MinusToken */: return left - right;
+ case 40 /* PercentToken */: return left % right;
+ }
+ return undefined;
+ case 8 /* NumericLiteral */:
+ return +e.text;
+ case 172 /* ParenthesizedExpression */:
+ return evalConstant(e.expression);
+ case 69 /* Identifier */:
+ case 167 /* ElementAccessExpression */:
+ case 166 /* PropertyAccessExpression */:
+ var member = initializer.parent;
+ var currentType = getTypeOfSymbol(getSymbolOfNode(member.parent));
+ var enumType_1;
+ var propertyName;
+ if (e.kind === 69 /* Identifier */) {
+ // unqualified names can refer to member that reside in different declaration of the enum so just doing name resolution won't work.
+ // instead pick current enum type and later try to fetch member from the type
+ enumType_1 = currentType;
+ propertyName = e.text;
+ }
+ else {
+ var expression;
+ if (e.kind === 167 /* ElementAccessExpression */) {
+ if (e.argumentExpression === undefined ||
+ e.argumentExpression.kind !== 9 /* StringLiteral */) {
+ return undefined;
+ }
+ expression = e.expression;
+ propertyName = e.argumentExpression.text;
+ }
+ else {
+ expression = e.expression;
+ propertyName = e.name.text;
+ }
+ // expression part in ElementAccess\PropertyAccess should be either identifier or dottedName
+ var current = expression;
+ while (current) {
+ if (current.kind === 69 /* Identifier */) {
+ break;
+ }
+ else if (current.kind === 166 /* PropertyAccessExpression */) {
+ current = current.expression;
+ }
+ else {
+ return undefined;
+ }
+ }
+ enumType_1 = checkExpression(expression);
+ // allow references to constant members of other enums
+ if (!(enumType_1.symbol && (enumType_1.symbol.flags & 384 /* Enum */))) {
+ return undefined;
+ }
+ }
+ if (propertyName === undefined) {
+ return undefined;
+ }
+ var property = getPropertyOfObjectType(enumType_1, propertyName);
+ if (!property || !(property.flags & 8 /* EnumMember */)) {
+ return undefined;
+ }
+ var propertyDecl = property.valueDeclaration;
+ // self references are illegal
+ if (member === propertyDecl) {
+ return undefined;
+ }
+ // illegal case: forward reference
+ if (!isBlockScopedNameDeclaredBeforeUse(propertyDecl, member)) {
+ reportError = false;
+ error(e, ts.Diagnostics.A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums);
+ return undefined;
+ }
+ return getNodeLinks(propertyDecl).enumMemberValue;
+ }
+ }
+ }
+ }
+ function checkEnumDeclaration(node) {
+ if (!produceDiagnostics) {
+ return;
+ }
+ // Grammar checking
+ checkGrammarDecorators(node) || checkGrammarModifiers(node);
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Enum_name_cannot_be_0);
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ checkExportsOnMergedDeclarations(node);
+ computeEnumMemberValues(node);
+ var enumIsConst = ts.isConst(node);
+ if (compilerOptions.isolatedModules && enumIsConst && ts.isInAmbientContext(node)) {
+ error(node.name, ts.Diagnostics.Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided);
+ }
+ // Spec 2014 - Section 9.3:
+ // It isn't possible for one enum declaration to continue the automatic numbering sequence of another,
+ // and when an enum type has multiple declarations, only one declaration is permitted to omit a value
+ // for the first member.
+ //
+ // Only perform this check once per symbol
+ var enumSymbol = getSymbolOfNode(node);
+ var firstDeclaration = ts.getDeclarationOfKind(enumSymbol, node.kind);
+ if (node === firstDeclaration) {
+ if (enumSymbol.declarations.length > 1) {
+ // check that const is placed\omitted on all enum declarations
+ ts.forEach(enumSymbol.declarations, function (decl) {
+ if (ts.isConstEnumDeclaration(decl) !== enumIsConst) {
+ error(decl.name, ts.Diagnostics.Enum_declarations_must_all_be_const_or_non_const);
+ }
+ });
+ }
+ var seenEnumMissingInitialInitializer = false;
+ ts.forEach(enumSymbol.declarations, function (declaration) {
+ // return true if we hit a violation of the rule, false otherwise
+ if (declaration.kind !== 217 /* EnumDeclaration */) {
+ return false;
+ }
+ var enumDeclaration = declaration;
+ if (!enumDeclaration.members.length) {
+ return false;
+ }
+ var firstEnumMember = enumDeclaration.members[0];
+ if (!firstEnumMember.initializer) {
+ if (seenEnumMissingInitialInitializer) {
+ error(firstEnumMember.name, ts.Diagnostics.In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element);
+ }
+ else {
+ seenEnumMissingInitialInitializer = true;
+ }
+ }
+ });
+ }
+ }
+ function getFirstNonAmbientClassOrFunctionDeclaration(symbol) {
+ var declarations = symbol.declarations;
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ if ((declaration.kind === 214 /* ClassDeclaration */ ||
+ (declaration.kind === 213 /* FunctionDeclaration */ && ts.nodeIsPresent(declaration.body))) &&
+ !ts.isInAmbientContext(declaration)) {
+ return declaration;
+ }
+ }
+ return undefined;
+ }
+ function inSameLexicalScope(node1, node2) {
+ var container1 = ts.getEnclosingBlockScopeContainer(node1);
+ var container2 = ts.getEnclosingBlockScopeContainer(node2);
+ if (isGlobalSourceFile(container1)) {
+ return isGlobalSourceFile(container2);
+ }
+ else if (isGlobalSourceFile(container2)) {
+ return false;
+ }
+ else {
+ return container1 === container2;
+ }
+ }
+ function checkModuleDeclaration(node) {
+ if (produceDiagnostics) {
+ // Grammar checking
+ var isAmbientExternalModule = node.name.kind === 9 /* StringLiteral */;
+ var contextErrorMessage = isAmbientExternalModule
+ ? ts.Diagnostics.An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file
+ : ts.Diagnostics.A_namespace_declaration_is_only_allowed_in_a_namespace_or_module;
+ if (checkGrammarModuleElementContext(node, contextErrorMessage)) {
+ // If we hit a module declaration in an illegal context, just bail out to avoid cascading errors.
+ return;
+ }
+ if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node)) {
+ if (!ts.isInAmbientContext(node) && node.name.kind === 9 /* StringLiteral */) {
+ grammarErrorOnNode(node.name, ts.Diagnostics.Only_ambient_modules_can_use_quoted_names);
+ }
+ }
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ checkExportsOnMergedDeclarations(node);
+ var symbol = getSymbolOfNode(node);
+ // The following checks only apply on a non-ambient instantiated module declaration.
+ if (symbol.flags & 512 /* ValueModule */
+ && symbol.declarations.length > 1
+ && !ts.isInAmbientContext(node)
+ && ts.isInstantiatedModule(node, compilerOptions.preserveConstEnums || compilerOptions.isolatedModules)) {
+ var firstNonAmbientClassOrFunc = getFirstNonAmbientClassOrFunctionDeclaration(symbol);
+ if (firstNonAmbientClassOrFunc) {
+ if (ts.getSourceFileOfNode(node) !== ts.getSourceFileOfNode(firstNonAmbientClassOrFunc)) {
+ error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged);
+ }
+ else if (node.pos < firstNonAmbientClassOrFunc.pos) {
+ error(node.name, ts.Diagnostics.A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged);
+ }
+ }
+ // if the module merges with a class declaration in the same lexical scope,
+ // we need to track this to ensure the correct emit.
+ var mergedClass = ts.getDeclarationOfKind(symbol, 214 /* ClassDeclaration */);
+ if (mergedClass &&
+ inSameLexicalScope(node, mergedClass)) {
+ getNodeLinks(node).flags |= 32768 /* LexicalModuleMergesWithClass */;
+ }
+ }
+ // Checks for ambient external modules.
+ if (isAmbientExternalModule) {
+ if (!isGlobalSourceFile(node.parent)) {
+ error(node.name, ts.Diagnostics.Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces);
+ }
+ if (ts.isExternalModuleNameRelative(node.name.text)) {
+ error(node.name, ts.Diagnostics.Ambient_module_declaration_cannot_specify_relative_module_name);
+ }
+ }
+ }
+ checkSourceElement(node.body);
+ }
+ function getFirstIdentifier(node) {
+ while (true) {
+ if (node.kind === 135 /* QualifiedName */) {
+ node = node.left;
+ }
+ else if (node.kind === 166 /* PropertyAccessExpression */) {
+ node = node.expression;
+ }
+ else {
+ break;
+ }
+ }
+ ts.Debug.assert(node.kind === 69 /* Identifier */);
+ return node;
+ }
+ function checkExternalImportOrExportDeclaration(node) {
+ var moduleName = ts.getExternalModuleName(node);
+ if (!ts.nodeIsMissing(moduleName) && moduleName.kind !== 9 /* StringLiteral */) {
+ error(moduleName, ts.Diagnostics.String_literal_expected);
+ return false;
+ }
+ var inAmbientExternalModule = node.parent.kind === 219 /* ModuleBlock */ && node.parent.parent.name.kind === 9 /* StringLiteral */;
+ if (node.parent.kind !== 248 /* SourceFile */ && !inAmbientExternalModule) {
+ error(moduleName, node.kind === 228 /* ExportDeclaration */ ?
+ ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace :
+ ts.Diagnostics.Import_declarations_in_a_namespace_cannot_reference_a_module);
+ return false;
+ }
+ if (inAmbientExternalModule && ts.isExternalModuleNameRelative(moduleName.text)) {
+ // TypeScript 1.0 spec (April 2013): 12.1.6
+ // An ExternalImportDeclaration in an AmbientExternalModuleDeclaration may reference
+ // other external modules only through top - level external module names.
+ // Relative external module names are not permitted.
+ error(node, ts.Diagnostics.Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name);
+ return false;
+ }
+ return true;
+ }
+ function checkAliasSymbol(node) {
+ var symbol = getSymbolOfNode(node);
+ var target = resolveAlias(symbol);
+ if (target !== unknownSymbol) {
+ var excludedMeanings = (symbol.flags & 107455 /* Value */ ? 107455 /* Value */ : 0) |
+ (symbol.flags & 793056 /* Type */ ? 793056 /* Type */ : 0) |
+ (symbol.flags & 1536 /* Namespace */ ? 1536 /* Namespace */ : 0);
+ if (target.flags & excludedMeanings) {
+ var message = node.kind === 230 /* ExportSpecifier */ ?
+ ts.Diagnostics.Export_declaration_conflicts_with_exported_declaration_of_0 :
+ ts.Diagnostics.Import_declaration_conflicts_with_local_declaration_of_0;
+ error(node, message, symbolToString(symbol));
+ }
+ }
+ }
+ function checkImportBinding(node) {
+ checkCollisionWithCapturedThisVariable(node, node.name);
+ checkCollisionWithRequireExportsInGeneratedCode(node, node.name);
+ checkAliasSymbol(node);
+ }
+ function checkImportDeclaration(node) {
+ if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
+ // If we hit an import declaration in an illegal context, just bail out to avoid cascading errors.
+ return;
+ }
+ if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && (node.flags & 2035 /* Modifier */)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.An_import_declaration_cannot_have_modifiers);
+ }
+ if (checkExternalImportOrExportDeclaration(node)) {
+ var importClause = node.importClause;
+ if (importClause) {
+ if (importClause.name) {
+ checkImportBinding(importClause);
+ }
+ if (importClause.namedBindings) {
+ if (importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ checkImportBinding(importClause.namedBindings);
+ }
+ else {
+ ts.forEach(importClause.namedBindings.elements, checkImportBinding);
+ }
+ }
+ }
+ }
+ }
+ function checkImportEqualsDeclaration(node) {
+ if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_import_declaration_can_only_be_used_in_a_namespace_or_module)) {
+ // If we hit an import declaration in an illegal context, just bail out to avoid cascading errors.
+ return;
+ }
+ checkGrammarDecorators(node) || checkGrammarModifiers(node);
+ if (ts.isInternalModuleImportEqualsDeclaration(node) || checkExternalImportOrExportDeclaration(node)) {
+ checkImportBinding(node);
+ if (node.flags & 1 /* Export */) {
+ markExportAsReferenced(node);
+ }
+ if (ts.isInternalModuleImportEqualsDeclaration(node)) {
+ var target = resolveAlias(getSymbolOfNode(node));
+ if (target !== unknownSymbol) {
+ if (target.flags & 107455 /* Value */) {
+ // Target is a value symbol, check that it is not hidden by a local declaration with the same name
+ var moduleName = getFirstIdentifier(node.moduleReference);
+ if (!(resolveEntityName(moduleName, 107455 /* Value */ | 1536 /* Namespace */).flags & 1536 /* Namespace */)) {
+ error(moduleName, ts.Diagnostics.Module_0_is_hidden_by_a_local_declaration_with_the_same_name, ts.declarationNameToString(moduleName));
+ }
+ }
+ if (target.flags & 793056 /* Type */) {
+ checkTypeNameIsReserved(node.name, ts.Diagnostics.Import_name_cannot_be_0);
+ }
+ }
+ }
+ else {
+ if (modulekind === 5 /* ES6 */ && !ts.isInAmbientContext(node)) {
+ // Import equals declaration is deprecated in es6 or above
+ grammarErrorOnNode(node, ts.Diagnostics.Import_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead);
+ }
+ }
+ }
+ }
+ function checkExportDeclaration(node) {
+ if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_declaration_can_only_be_used_in_a_module)) {
+ // If we hit an export in an illegal context, just bail out to avoid cascading errors.
+ return;
+ }
+ if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && (node.flags & 2035 /* Modifier */)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_declaration_cannot_have_modifiers);
+ }
+ if (!node.moduleSpecifier || checkExternalImportOrExportDeclaration(node)) {
+ if (node.exportClause) {
+ // export { x, y }
+ // export { x, y } from "foo"
+ ts.forEach(node.exportClause.elements, checkExportSpecifier);
+ var inAmbientExternalModule = node.parent.kind === 219 /* ModuleBlock */ && node.parent.parent.name.kind === 9 /* StringLiteral */;
+ if (node.parent.kind !== 248 /* SourceFile */ && !inAmbientExternalModule) {
+ error(node, ts.Diagnostics.Export_declarations_are_not_permitted_in_a_namespace);
+ }
+ }
+ else {
+ // export * from "foo"
+ var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
+ if (moduleSymbol && moduleSymbol.exports["export="]) {
+ error(node.moduleSpecifier, ts.Diagnostics.Module_0_uses_export_and_cannot_be_used_with_export_Asterisk, symbolToString(moduleSymbol));
+ }
+ }
+ }
+ }
+ function checkGrammarModuleElementContext(node, errorMessage) {
+ if (node.parent.kind !== 248 /* SourceFile */ && node.parent.kind !== 219 /* ModuleBlock */ && node.parent.kind !== 218 /* ModuleDeclaration */) {
+ return grammarErrorOnFirstToken(node, errorMessage);
+ }
+ }
+ function checkExportSpecifier(node) {
+ checkAliasSymbol(node);
+ if (!node.parent.parent.moduleSpecifier) {
+ markExportAsReferenced(node);
+ }
+ }
+ function checkExportAssignment(node) {
+ if (checkGrammarModuleElementContext(node, ts.Diagnostics.An_export_assignment_can_only_be_used_in_a_module)) {
+ // If we hit an export assignment in an illegal context, just bail out to avoid cascading errors.
+ return;
+ }
+ var container = node.parent.kind === 248 /* SourceFile */ ? node.parent : node.parent.parent;
+ if (container.kind === 218 /* ModuleDeclaration */ && container.name.kind === 69 /* Identifier */) {
+ error(node, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_namespace);
+ return;
+ }
+ // Grammar checking
+ if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && (node.flags & 2035 /* Modifier */)) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.An_export_assignment_cannot_have_modifiers);
+ }
+ if (node.expression.kind === 69 /* Identifier */) {
+ markExportAsReferenced(node);
+ }
+ else {
+ checkExpressionCached(node.expression);
+ }
+ checkExternalModuleExports(container);
+ if (node.isExportEquals && !ts.isInAmbientContext(node)) {
+ if (modulekind === 5 /* ES6 */) {
+ // export assignment is not supported in es6 modules
+ grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_export_default_or_another_module_format_instead);
+ }
+ else if (modulekind === 4 /* System */) {
+ // system modules does not support export assignment
+ grammarErrorOnNode(node, ts.Diagnostics.Export_assignment_is_not_supported_when_module_flag_is_system);
+ }
+ }
+ }
+ function getModuleStatements(node) {
+ if (node.kind === 248 /* SourceFile */) {
+ return node.statements;
+ }
+ if (node.kind === 218 /* ModuleDeclaration */ && node.body.kind === 219 /* ModuleBlock */) {
+ return node.body.statements;
+ }
+ return emptyArray;
+ }
+ function hasExportedMembers(moduleSymbol) {
+ for (var id in moduleSymbol.exports) {
+ if (id !== "export=") {
+ return true;
+ }
+ }
+ return false;
+ }
+ function checkExternalModuleExports(node) {
+ var moduleSymbol = getSymbolOfNode(node);
+ var links = getSymbolLinks(moduleSymbol);
+ if (!links.exportsChecked) {
+ var exportEqualsSymbol = moduleSymbol.exports["export="];
+ if (exportEqualsSymbol && hasExportedMembers(moduleSymbol)) {
+ var declaration = getDeclarationOfAliasSymbol(exportEqualsSymbol) || exportEqualsSymbol.valueDeclaration;
+ error(declaration, ts.Diagnostics.An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements);
+ }
+ links.exportsChecked = true;
+ }
+ }
+ function checkTypePredicate(node) {
+ if (!isInLegalTypePredicatePosition(node)) {
+ error(node, ts.Diagnostics.A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods);
+ }
+ }
+ function checkSourceElement(node) {
+ if (!node) {
+ return;
+ }
+ var kind = node.kind;
+ if (cancellationToken) {
+ // Only bother checking on a few construct kinds. We don't want to be excessivly
+ // hitting the cancellation token on every node we check.
+ switch (kind) {
+ case 218 /* ModuleDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ cancellationToken.throwIfCancellationRequested();
+ }
+ }
+ switch (kind) {
+ case 137 /* TypeParameter */:
+ return checkTypeParameter(node);
+ case 138 /* Parameter */:
+ return checkParameter(node);
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return checkPropertyDeclaration(node);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ return checkSignatureDeclaration(node);
+ case 149 /* IndexSignature */:
+ return checkSignatureDeclaration(node);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return checkMethodDeclaration(node);
+ case 144 /* Constructor */:
+ return checkConstructorDeclaration(node);
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return checkAccessorDeclaration(node);
+ case 151 /* TypeReference */:
+ return checkTypeReferenceNode(node);
+ case 150 /* TypePredicate */:
+ return checkTypePredicate(node);
+ case 154 /* TypeQuery */:
+ return checkTypeQuery(node);
+ case 155 /* TypeLiteral */:
+ return checkTypeLiteral(node);
+ case 156 /* ArrayType */:
+ return checkArrayType(node);
+ case 157 /* TupleType */:
+ return checkTupleType(node);
+ case 158 /* UnionType */:
+ case 159 /* IntersectionType */:
+ return checkUnionOrIntersectionType(node);
+ case 160 /* ParenthesizedType */:
+ return checkSourceElement(node.type);
+ case 213 /* FunctionDeclaration */:
+ return checkFunctionDeclaration(node);
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ return checkBlock(node);
+ case 193 /* VariableStatement */:
+ return checkVariableStatement(node);
+ case 195 /* ExpressionStatement */:
+ return checkExpressionStatement(node);
+ case 196 /* IfStatement */:
+ return checkIfStatement(node);
+ case 197 /* DoStatement */:
+ return checkDoStatement(node);
+ case 198 /* WhileStatement */:
+ return checkWhileStatement(node);
+ case 199 /* ForStatement */:
+ return checkForStatement(node);
+ case 200 /* ForInStatement */:
+ return checkForInStatement(node);
+ case 201 /* ForOfStatement */:
+ return checkForOfStatement(node);
+ case 202 /* ContinueStatement */:
+ case 203 /* BreakStatement */:
+ return checkBreakOrContinueStatement(node);
+ case 204 /* ReturnStatement */:
+ return checkReturnStatement(node);
+ case 205 /* WithStatement */:
+ return checkWithStatement(node);
+ case 206 /* SwitchStatement */:
+ return checkSwitchStatement(node);
+ case 207 /* LabeledStatement */:
+ return checkLabeledStatement(node);
+ case 208 /* ThrowStatement */:
+ return checkThrowStatement(node);
+ case 209 /* TryStatement */:
+ return checkTryStatement(node);
+ case 211 /* VariableDeclaration */:
+ return checkVariableDeclaration(node);
+ case 163 /* BindingElement */:
+ return checkBindingElement(node);
+ case 214 /* ClassDeclaration */:
+ return checkClassDeclaration(node);
+ case 215 /* InterfaceDeclaration */:
+ return checkInterfaceDeclaration(node);
+ case 216 /* TypeAliasDeclaration */:
+ return checkTypeAliasDeclaration(node);
+ case 217 /* EnumDeclaration */:
+ return checkEnumDeclaration(node);
+ case 218 /* ModuleDeclaration */:
+ return checkModuleDeclaration(node);
+ case 222 /* ImportDeclaration */:
+ return checkImportDeclaration(node);
+ case 221 /* ImportEqualsDeclaration */:
+ return checkImportEqualsDeclaration(node);
+ case 228 /* ExportDeclaration */:
+ return checkExportDeclaration(node);
+ case 227 /* ExportAssignment */:
+ return checkExportAssignment(node);
+ case 194 /* EmptyStatement */:
+ checkGrammarStatementInAmbientContext(node);
+ return;
+ case 210 /* DebuggerStatement */:
+ checkGrammarStatementInAmbientContext(node);
+ return;
+ case 231 /* MissingDeclaration */:
+ return checkMissingDeclaration(node);
+ }
+ }
+ // Function and class expression bodies are checked after all statements in the enclosing body. This is
+ // to ensure constructs like the following are permitted:
+ // let foo = function () {
+ // let s = foo();
+ // return "hello";
+ // }
+ // Here, performing a full type check of the body of the function expression whilst in the process of
+ // determining the type of foo would cause foo to be given type any because of the recursive reference.
+ // Delaying the type check of the body ensures foo has been assigned a type.
+ function checkFunctionAndClassExpressionBodies(node) {
+ switch (node.kind) {
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ ts.forEach(node.parameters, checkFunctionAndClassExpressionBodies);
+ checkFunctionExpressionOrObjectLiteralMethodBody(node);
+ break;
+ case 186 /* ClassExpression */:
+ ts.forEach(node.members, checkSourceElement);
+ ts.forEachChild(node, checkFunctionAndClassExpressionBodies);
+ break;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ ts.forEach(node.decorators, checkFunctionAndClassExpressionBodies);
+ ts.forEach(node.parameters, checkFunctionAndClassExpressionBodies);
+ if (ts.isObjectLiteralMethod(node)) {
+ checkFunctionExpressionOrObjectLiteralMethodBody(node);
+ }
+ break;
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ ts.forEach(node.parameters, checkFunctionAndClassExpressionBodies);
+ break;
+ case 205 /* WithStatement */:
+ checkFunctionAndClassExpressionBodies(node.expression);
+ break;
+ case 139 /* Decorator */:
+ case 138 /* Parameter */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 161 /* ObjectBindingPattern */:
+ case 162 /* ArrayBindingPattern */:
+ case 163 /* BindingElement */:
+ case 164 /* ArrayLiteralExpression */:
+ case 165 /* ObjectLiteralExpression */:
+ case 245 /* PropertyAssignment */:
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 170 /* TaggedTemplateExpression */:
+ case 183 /* TemplateExpression */:
+ case 190 /* TemplateSpan */:
+ case 171 /* TypeAssertionExpression */:
+ case 189 /* AsExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 176 /* TypeOfExpression */:
+ case 177 /* VoidExpression */:
+ case 178 /* AwaitExpression */:
+ case 175 /* DeleteExpression */:
+ case 179 /* PrefixUnaryExpression */:
+ case 180 /* PostfixUnaryExpression */:
+ case 181 /* BinaryExpression */:
+ case 182 /* ConditionalExpression */:
+ case 185 /* SpreadElementExpression */:
+ case 184 /* YieldExpression */:
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ case 193 /* VariableStatement */:
+ case 195 /* ExpressionStatement */:
+ case 196 /* IfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 202 /* ContinueStatement */:
+ case 203 /* BreakStatement */:
+ case 204 /* ReturnStatement */:
+ case 206 /* SwitchStatement */:
+ case 220 /* CaseBlock */:
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ case 207 /* LabeledStatement */:
+ case 208 /* ThrowStatement */:
+ case 209 /* TryStatement */:
+ case 244 /* CatchClause */:
+ case 211 /* VariableDeclaration */:
+ case 212 /* VariableDeclarationList */:
+ case 214 /* ClassDeclaration */:
+ case 243 /* HeritageClause */:
+ case 188 /* ExpressionWithTypeArguments */:
+ case 217 /* EnumDeclaration */:
+ case 247 /* EnumMember */:
+ case 227 /* ExportAssignment */:
+ case 248 /* SourceFile */:
+ case 240 /* JsxExpression */:
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 238 /* JsxAttribute */:
+ case 239 /* JsxSpreadAttribute */:
+ case 235 /* JsxOpeningElement */:
+ ts.forEachChild(node, checkFunctionAndClassExpressionBodies);
+ break;
+ }
+ }
+ function checkSourceFile(node) {
+ var start = new Date().getTime();
+ checkSourceFileWorker(node);
+ ts.checkTime += new Date().getTime() - start;
+ }
+ // Fully type check a source file and collect the relevant diagnostics.
+ function checkSourceFileWorker(node) {
+ var links = getNodeLinks(node);
+ if (!(links.flags & 1 /* TypeChecked */)) {
+ // Check whether the file has declared it is the default lib,
+ // and whether the user has specifically chosen to avoid checking it.
+ if (node.isDefaultLib && compilerOptions.skipDefaultLibCheck) {
+ return;
+ }
+ // Grammar checking
+ checkGrammarSourceFile(node);
+ emitExtends = false;
+ emitDecorate = false;
+ emitParam = false;
+ potentialThisCollisions.length = 0;
+ ts.forEach(node.statements, checkSourceElement);
+ checkFunctionAndClassExpressionBodies(node);
+ if (ts.isExternalModule(node)) {
+ checkExternalModuleExports(node);
+ }
+ if (potentialThisCollisions.length) {
+ ts.forEach(potentialThisCollisions, checkIfThisIsCapturedInEnclosingScope);
+ potentialThisCollisions.length = 0;
+ }
+ if (emitExtends) {
+ links.flags |= 8 /* EmitExtends */;
+ }
+ if (emitDecorate) {
+ links.flags |= 16 /* EmitDecorate */;
+ }
+ if (emitParam) {
+ links.flags |= 32 /* EmitParam */;
+ }
+ if (emitAwaiter) {
+ links.flags |= 64 /* EmitAwaiter */;
+ }
+ if (emitGenerator || (emitAwaiter && languageVersion < 2 /* ES6 */)) {
+ links.flags |= 128 /* EmitGenerator */;
+ }
+ links.flags |= 1 /* TypeChecked */;
+ }
+ }
+ function getDiagnostics(sourceFile, ct) {
+ try {
+ // Record the cancellation token so it can be checked later on during checkSourceElement.
+ // Do this in a finally block so we can ensure that it gets reset back to nothing after
+ // this call is done.
+ cancellationToken = ct;
+ return getDiagnosticsWorker(sourceFile);
+ }
+ finally {
+ cancellationToken = undefined;
+ }
+ }
+ function getDiagnosticsWorker(sourceFile) {
+ throwIfNonDiagnosticsProducing();
+ if (sourceFile) {
+ checkSourceFile(sourceFile);
+ return diagnostics.getDiagnostics(sourceFile.fileName);
+ }
+ ts.forEach(host.getSourceFiles(), checkSourceFile);
+ return diagnostics.getDiagnostics();
+ }
+ function getGlobalDiagnostics() {
+ throwIfNonDiagnosticsProducing();
+ return diagnostics.getGlobalDiagnostics();
+ }
+ function throwIfNonDiagnosticsProducing() {
+ if (!produceDiagnostics) {
+ throw new Error("Trying to get diagnostics from a type checker that does not produce them.");
+ }
+ }
+ // Language service support
+ function isInsideWithStatementBody(node) {
+ if (node) {
+ while (node.parent) {
+ if (node.parent.kind === 205 /* WithStatement */ && node.parent.statement === node) {
+ return true;
+ }
+ node = node.parent;
+ }
+ }
+ return false;
+ }
+ function getSymbolsInScope(location, meaning) {
+ var symbols = {};
+ var memberFlags = 0;
+ if (isInsideWithStatementBody(location)) {
+ // We cannot answer semantic questions within a with block, do not proceed any further
+ return [];
+ }
+ populateSymbols();
+ return symbolsToArray(symbols);
+ function populateSymbols() {
+ while (location) {
+ if (location.locals && !isGlobalSourceFile(location)) {
+ copySymbols(location.locals, meaning);
+ }
+ switch (location.kind) {
+ case 248 /* SourceFile */:
+ if (!ts.isExternalModule(location)) {
+ break;
+ }
+ case 218 /* ModuleDeclaration */:
+ copySymbols(getSymbolOfNode(location).exports, meaning & 8914931 /* ModuleMember */);
+ break;
+ case 217 /* EnumDeclaration */:
+ copySymbols(getSymbolOfNode(location).exports, meaning & 8 /* EnumMember */);
+ break;
+ case 186 /* ClassExpression */:
+ var className = location.name;
+ if (className) {
+ copySymbol(location.symbol, meaning);
+ }
+ // fall through; this fall-through is necessary because we would like to handle
+ // type parameter inside class expression similar to how we handle it in classDeclaration and interface Declaration
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ // If we didn't come from static member of class or interface,
+ // add the type parameters into the symbol table
+ // (type parameters of classDeclaration/classExpression and interface are in member property of the symbol.
+ // Note: that the memberFlags come from previous iteration.
+ if (!(memberFlags & 128 /* Static */)) {
+ copySymbols(getSymbolOfNode(location).members, meaning & 793056 /* Type */);
+ }
+ break;
+ case 173 /* FunctionExpression */:
+ var funcName = location.name;
+ if (funcName) {
+ copySymbol(location.symbol, meaning);
+ }
+ break;
+ }
+ if (ts.introducesArgumentsExoticObject(location)) {
+ copySymbol(argumentsSymbol, meaning);
+ }
+ memberFlags = location.flags;
+ location = location.parent;
+ }
+ copySymbols(globals, meaning);
+ }
+ /**
+ * Copy the given symbol into symbol tables if the symbol has the given meaning
+ * and it doesn't already existed in the symbol table
+ * @param key a key for storing in symbol table; if undefined, use symbol.name
+ * @param symbol the symbol to be added into symbol table
+ * @param meaning meaning of symbol to filter by before adding to symbol table
+ */
+ function copySymbol(symbol, meaning) {
+ if (symbol.flags & meaning) {
+ var id = symbol.name;
+ // We will copy all symbol regardless of its reserved name because
+ // symbolsToArray will check whether the key is a reserved name and
+ // it will not copy symbol with reserved name to the array
+ if (!ts.hasProperty(symbols, id)) {
+ symbols[id] = symbol;
+ }
+ }
+ }
+ function copySymbols(source, meaning) {
+ if (meaning) {
+ for (var id in source) {
+ var symbol = source[id];
+ copySymbol(symbol, meaning);
+ }
+ }
+ }
+ }
+ function isTypeDeclarationName(name) {
+ return name.kind === 69 /* Identifier */ &&
+ isTypeDeclaration(name.parent) &&
+ name.parent.name === name;
+ }
+ function isTypeDeclaration(node) {
+ switch (node.kind) {
+ case 137 /* TypeParameter */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return true;
+ }
+ }
+ // True if the given identifier is part of a type reference
+ function isTypeReferenceIdentifier(entityName) {
+ var node = entityName;
+ while (node.parent && node.parent.kind === 135 /* QualifiedName */) {
+ node = node.parent;
+ }
+ return node.parent && node.parent.kind === 151 /* TypeReference */;
+ }
+ function isHeritageClauseElementIdentifier(entityName) {
+ var node = entityName;
+ while (node.parent && node.parent.kind === 166 /* PropertyAccessExpression */) {
+ node = node.parent;
+ }
+ return node.parent && node.parent.kind === 188 /* ExpressionWithTypeArguments */;
+ }
+ function getLeftSideOfImportEqualsOrExportAssignment(nodeOnRightSide) {
+ while (nodeOnRightSide.parent.kind === 135 /* QualifiedName */) {
+ nodeOnRightSide = nodeOnRightSide.parent;
+ }
+ if (nodeOnRightSide.parent.kind === 221 /* ImportEqualsDeclaration */) {
+ return nodeOnRightSide.parent.moduleReference === nodeOnRightSide && nodeOnRightSide.parent;
+ }
+ if (nodeOnRightSide.parent.kind === 227 /* ExportAssignment */) {
+ return nodeOnRightSide.parent.expression === nodeOnRightSide && nodeOnRightSide.parent;
+ }
+ return undefined;
+ }
+ function isInRightSideOfImportOrExportAssignment(node) {
+ return getLeftSideOfImportEqualsOrExportAssignment(node) !== undefined;
+ }
+ function getSymbolOfEntityNameOrPropertyAccessExpression(entityName) {
+ if (ts.isDeclarationName(entityName)) {
+ return getSymbolOfNode(entityName.parent);
+ }
+ if (entityName.parent.kind === 227 /* ExportAssignment */) {
+ return resolveEntityName(entityName,
+ /*all meanings*/ 107455 /* Value */ | 793056 /* Type */ | 1536 /* Namespace */ | 8388608 /* Alias */);
+ }
+ if (entityName.kind !== 166 /* PropertyAccessExpression */) {
+ if (isInRightSideOfImportOrExportAssignment(entityName)) {
+ // Since we already checked for ExportAssignment, this really could only be an Import
+ return getSymbolOfPartOfRightHandSideOfImportEquals(entityName);
+ }
+ }
+ if (ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
+ entityName = entityName.parent;
+ }
+ if (isHeritageClauseElementIdentifier(entityName)) {
+ var meaning = 0 /* None */;
+ // In an interface or class, we're definitely interested in a type.
+ if (entityName.parent.kind === 188 /* ExpressionWithTypeArguments */) {
+ meaning = 793056 /* Type */;
+ // In a class 'extends' clause we are also looking for a value.
+ if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent)) {
+ meaning |= 107455 /* Value */;
+ }
+ }
+ else {
+ meaning = 1536 /* Namespace */;
+ }
+ meaning |= 8388608 /* Alias */;
+ return resolveEntityName(entityName, meaning);
+ }
+ else if ((entityName.parent.kind === 235 /* JsxOpeningElement */) ||
+ (entityName.parent.kind === 234 /* JsxSelfClosingElement */) ||
+ (entityName.parent.kind === 237 /* JsxClosingElement */)) {
+ return getJsxElementTagSymbol(entityName.parent);
+ }
+ else if (ts.isExpression(entityName)) {
+ if (ts.nodeIsMissing(entityName)) {
+ // Missing entity name.
+ return undefined;
+ }
+ if (entityName.kind === 69 /* Identifier */) {
+ // Include aliases in the meaning, this ensures that we do not follow aliases to where they point and instead
+ // return the alias symbol.
+ var meaning = 107455 /* Value */ | 8388608 /* Alias */;
+ return resolveEntityName(entityName, meaning);
+ }
+ else if (entityName.kind === 166 /* PropertyAccessExpression */) {
+ var symbol = getNodeLinks(entityName).resolvedSymbol;
+ if (!symbol) {
+ checkPropertyAccessExpression(entityName);
+ }
+ return getNodeLinks(entityName).resolvedSymbol;
+ }
+ else if (entityName.kind === 135 /* QualifiedName */) {
+ var symbol = getNodeLinks(entityName).resolvedSymbol;
+ if (!symbol) {
+ checkQualifiedName(entityName);
+ }
+ return getNodeLinks(entityName).resolvedSymbol;
+ }
+ }
+ else if (isTypeReferenceIdentifier(entityName)) {
+ var meaning = entityName.parent.kind === 151 /* TypeReference */ ? 793056 /* Type */ : 1536 /* Namespace */;
+ // Include aliases in the meaning, this ensures that we do not follow aliases to where they point and instead
+ // return the alias symbol.
+ meaning |= 8388608 /* Alias */;
+ return resolveEntityName(entityName, meaning);
+ }
+ else if (entityName.parent.kind === 238 /* JsxAttribute */) {
+ return getJsxAttributePropertySymbol(entityName.parent);
+ }
+ if (entityName.parent.kind === 150 /* TypePredicate */) {
+ return resolveEntityName(entityName, /*meaning*/ 1 /* FunctionScopedVariable */);
+ }
+ // Do we want to return undefined here?
+ return undefined;
+ }
+ function getSymbolAtLocation(node) {
+ if (isInsideWithStatementBody(node)) {
+ // We cannot answer semantic questions within a with block, do not proceed any further
+ return undefined;
+ }
+ if (ts.isDeclarationName(node)) {
+ // This is a declaration, call getSymbolOfNode
+ return getSymbolOfNode(node.parent);
+ }
+ if (node.kind === 69 /* Identifier */) {
+ if (isInRightSideOfImportOrExportAssignment(node)) {
+ return node.parent.kind === 227 /* ExportAssignment */
+ ? getSymbolOfEntityNameOrPropertyAccessExpression(node)
+ : getSymbolOfPartOfRightHandSideOfImportEquals(node);
+ }
+ else if (node.parent.kind === 163 /* BindingElement */ &&
+ node.parent.parent.kind === 161 /* ObjectBindingPattern */ &&
+ node === node.parent.propertyName) {
+ var typeOfPattern = getTypeOfNode(node.parent.parent);
+ var propertyDeclaration = typeOfPattern && getPropertyOfType(typeOfPattern, node.text);
+ if (propertyDeclaration) {
+ return propertyDeclaration;
+ }
+ }
+ }
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ case 166 /* PropertyAccessExpression */:
+ case 135 /* QualifiedName */:
+ return getSymbolOfEntityNameOrPropertyAccessExpression(node);
+ case 97 /* ThisKeyword */:
+ case 95 /* SuperKeyword */:
+ var type = ts.isExpression(node) ? checkExpression(node) : getTypeFromTypeNode(node);
+ return type.symbol;
+ case 121 /* ConstructorKeyword */:
+ // constructor keyword for an overload, should take us to the definition if it exist
+ var constructorDeclaration = node.parent;
+ if (constructorDeclaration && constructorDeclaration.kind === 144 /* Constructor */) {
+ return constructorDeclaration.parent.symbol;
+ }
+ return undefined;
+ case 9 /* StringLiteral */:
+ // External module name in an import declaration
+ if ((ts.isExternalModuleImportEqualsDeclaration(node.parent.parent) &&
+ ts.getExternalModuleImportEqualsDeclarationExpression(node.parent.parent) === node) ||
+ ((node.parent.kind === 222 /* ImportDeclaration */ || node.parent.kind === 228 /* ExportDeclaration */) &&
+ node.parent.moduleSpecifier === node)) {
+ return resolveExternalModuleName(node, node);
+ }
+ // Fall through
+ case 8 /* NumericLiteral */:
+ // index access
+ if (node.parent.kind === 167 /* ElementAccessExpression */ && node.parent.argumentExpression === node) {
+ var objectType = checkExpression(node.parent.expression);
+ if (objectType === unknownType)
+ return undefined;
+ var apparentType = getApparentType(objectType);
+ if (apparentType === unknownType)
+ return undefined;
+ return getPropertyOfType(apparentType, node.text);
+ }
+ break;
+ }
+ return undefined;
+ }
+ function getShorthandAssignmentValueSymbol(location) {
+ // The function returns a value symbol of an identifier in the short-hand property assignment.
+ // This is necessary as an identifier in short-hand property assignment can contains two meaning:
+ // property name and property value.
+ if (location && location.kind === 246 /* ShorthandPropertyAssignment */) {
+ return resolveEntityName(location.name, 107455 /* Value */);
+ }
+ return undefined;
+ }
+ function getTypeOfNode(node) {
+ if (isInsideWithStatementBody(node)) {
+ // We cannot answer semantic questions within a with block, do not proceed any further
+ return unknownType;
+ }
+ if (ts.isTypeNode(node)) {
+ return getTypeFromTypeNode(node);
+ }
+ if (ts.isExpression(node)) {
+ return getTypeOfExpression(node);
+ }
+ if (ts.isExpressionWithTypeArgumentsInClassExtendsClause(node)) {
+ // A SyntaxKind.ExpressionWithTypeArguments is considered a type node, except when it occurs in the
+ // extends clause of a class. We handle that case here.
+ return getBaseTypes(getDeclaredTypeOfSymbol(getSymbolOfNode(node.parent.parent)))[0];
+ }
+ if (isTypeDeclaration(node)) {
+ // In this case, we call getSymbolOfNode instead of getSymbolAtLocation because it is a declaration
+ var symbol = getSymbolOfNode(node);
+ return getDeclaredTypeOfSymbol(symbol);
+ }
+ if (isTypeDeclarationName(node)) {
+ var symbol = getSymbolAtLocation(node);
+ return symbol && getDeclaredTypeOfSymbol(symbol);
+ }
+ if (ts.isDeclaration(node)) {
+ // In this case, we call getSymbolOfNode instead of getSymbolAtLocation because it is a declaration
+ var symbol = getSymbolOfNode(node);
+ return getTypeOfSymbol(symbol);
+ }
+ if (ts.isDeclarationName(node)) {
+ var symbol = getSymbolAtLocation(node);
+ return symbol && getTypeOfSymbol(symbol);
+ }
+ if (ts.isBindingPattern(node)) {
+ return getTypeForVariableLikeDeclaration(node.parent);
+ }
+ if (isInRightSideOfImportOrExportAssignment(node)) {
+ var symbol = getSymbolAtLocation(node);
+ var declaredType = symbol && getDeclaredTypeOfSymbol(symbol);
+ return declaredType !== unknownType ? declaredType : getTypeOfSymbol(symbol);
+ }
+ return unknownType;
+ }
+ function getTypeOfExpression(expr) {
+ if (ts.isRightSideOfQualifiedNameOrPropertyAccess(expr)) {
+ expr = expr.parent;
+ }
+ return checkExpression(expr);
+ }
+ /**
+ * Gets either the static or instance type of a class element, based on
+ * whether the element is declared as "static".
+ */
+ function getParentTypeOfClassElement(node) {
+ var classSymbol = getSymbolOfNode(node.parent);
+ return node.flags & 128 /* Static */
+ ? getTypeOfSymbol(classSymbol)
+ : getDeclaredTypeOfSymbol(classSymbol);
+ }
+ // Return the list of properties of the given type, augmented with properties from Function
+ // if the type has call or construct signatures
+ function getAugmentedPropertiesOfType(type) {
+ type = getApparentType(type);
+ var propsByName = createSymbolTable(getPropertiesOfType(type));
+ if (getSignaturesOfType(type, 0 /* Call */).length || getSignaturesOfType(type, 1 /* Construct */).length) {
+ ts.forEach(getPropertiesOfType(globalFunctionType), function (p) {
+ if (!ts.hasProperty(propsByName, p.name)) {
+ propsByName[p.name] = p;
+ }
+ });
+ }
+ return getNamedMembers(propsByName);
+ }
+ function getRootSymbols(symbol) {
+ if (symbol.flags & 268435456 /* SyntheticProperty */) {
+ var symbols = [];
+ var name_15 = symbol.name;
+ ts.forEach(getSymbolLinks(symbol).containingType.types, function (t) {
+ var symbol = getPropertyOfType(t, name_15);
+ if (symbol) {
+ symbols.push(symbol);
+ }
+ });
+ return symbols;
+ }
+ else if (symbol.flags & 67108864 /* Transient */) {
+ var target = getSymbolLinks(symbol).target;
+ if (target) {
+ return [target];
+ }
+ }
+ return [symbol];
+ }
+ // Emitter support
+ // When resolved as an expression identifier, if the given node references an exported entity, return the declaration
+ // node of the exported entity's container. Otherwise, return undefined.
+ function getReferencedExportContainer(node) {
+ var symbol = getReferencedValueSymbol(node);
+ if (symbol) {
+ if (symbol.flags & 1048576 /* ExportValue */) {
+ // If we reference an exported entity within the same module declaration, then whether
+ // we prefix depends on the kind of entity. SymbolFlags.ExportHasLocal encompasses all the
+ // kinds that we do NOT prefix.
+ var exportSymbol = getMergedSymbol(symbol.exportSymbol);
+ if (exportSymbol.flags & 944 /* ExportHasLocal */) {
+ return undefined;
+ }
+ symbol = exportSymbol;
+ }
+ var parentSymbol = getParentOfSymbol(symbol);
+ if (parentSymbol) {
+ if (parentSymbol.flags & 512 /* ValueModule */ && parentSymbol.valueDeclaration.kind === 248 /* SourceFile */) {
+ return parentSymbol.valueDeclaration;
+ }
+ for (var n = node.parent; n; n = n.parent) {
+ if ((n.kind === 218 /* ModuleDeclaration */ || n.kind === 217 /* EnumDeclaration */) && getSymbolOfNode(n) === parentSymbol) {
+ return n;
+ }
+ }
+ }
+ }
+ }
+ // When resolved as an expression identifier, if the given node references an import, return the declaration of
+ // that import. Otherwise, return undefined.
+ function getReferencedImportDeclaration(node) {
+ var symbol = getReferencedValueSymbol(node);
+ return symbol && symbol.flags & 8388608 /* Alias */ ? getDeclarationOfAliasSymbol(symbol) : undefined;
+ }
+ function isStatementWithLocals(node) {
+ switch (node.kind) {
+ case 192 /* Block */:
+ case 220 /* CaseBlock */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ return true;
+ }
+ return false;
+ }
+ function isNestedRedeclarationSymbol(symbol) {
+ if (symbol.flags & 418 /* BlockScoped */) {
+ var links = getSymbolLinks(symbol);
+ if (links.isNestedRedeclaration === undefined) {
+ var container = ts.getEnclosingBlockScopeContainer(symbol.valueDeclaration);
+ links.isNestedRedeclaration = isStatementWithLocals(container) &&
+ !!resolveName(container.parent, symbol.name, 107455 /* Value */, /*nameNotFoundMessage*/ undefined, /*nameArg*/ undefined);
+ }
+ return links.isNestedRedeclaration;
+ }
+ return false;
+ }
+ // When resolved as an expression identifier, if the given node references a nested block scoped entity with
+ // a name that hides an existing name, return the declaration of that entity. Otherwise, return undefined.
+ function getReferencedNestedRedeclaration(node) {
+ var symbol = getReferencedValueSymbol(node);
+ return symbol && isNestedRedeclarationSymbol(symbol) ? symbol.valueDeclaration : undefined;
+ }
+ // Return true if the given node is a declaration of a nested block scoped entity with a name that hides an
+ // existing name.
+ function isNestedRedeclaration(node) {
+ return isNestedRedeclarationSymbol(getSymbolOfNode(node));
+ }
+ function isValueAliasDeclaration(node) {
+ switch (node.kind) {
+ case 221 /* ImportEqualsDeclaration */:
+ case 223 /* ImportClause */:
+ case 224 /* NamespaceImport */:
+ case 226 /* ImportSpecifier */:
+ case 230 /* ExportSpecifier */:
+ return isAliasResolvedToValue(getSymbolOfNode(node));
+ case 228 /* ExportDeclaration */:
+ var exportClause = node.exportClause;
+ return exportClause && ts.forEach(exportClause.elements, isValueAliasDeclaration);
+ case 227 /* ExportAssignment */:
+ return node.expression && node.expression.kind === 69 /* Identifier */ ? isAliasResolvedToValue(getSymbolOfNode(node)) : true;
+ }
+ return false;
+ }
+ function isTopLevelValueImportEqualsWithEntityName(node) {
+ if (node.parent.kind !== 248 /* SourceFile */ || !ts.isInternalModuleImportEqualsDeclaration(node)) {
+ // parent is not source file or it is not reference to internal module
+ return false;
+ }
+ var isValue = isAliasResolvedToValue(getSymbolOfNode(node));
+ return isValue && node.moduleReference && !ts.nodeIsMissing(node.moduleReference);
+ }
+ function isAliasResolvedToValue(symbol) {
+ var target = resolveAlias(symbol);
+ if (target === unknownSymbol && compilerOptions.isolatedModules) {
+ return true;
+ }
+ // const enums and modules that contain only const enums are not considered values from the emit perespective
+ // unless 'preserveConstEnums' option is set to true
+ return target !== unknownSymbol &&
+ target &&
+ target.flags & 107455 /* Value */ &&
+ (compilerOptions.preserveConstEnums || !isConstEnumOrConstEnumOnlyModule(target));
+ }
+ function isConstEnumOrConstEnumOnlyModule(s) {
+ return isConstEnumSymbol(s) || s.constEnumOnlyModule;
+ }
+ function isReferencedAliasDeclaration(node, checkChildren) {
+ if (ts.isAliasSymbolDeclaration(node)) {
+ var symbol = getSymbolOfNode(node);
+ if (getSymbolLinks(symbol).referenced) {
+ return true;
+ }
+ }
+ if (checkChildren) {
+ return ts.forEachChild(node, function (node) { return isReferencedAliasDeclaration(node, checkChildren); });
+ }
+ return false;
+ }
+ function isImplementationOfOverload(node) {
+ if (ts.nodeIsPresent(node.body)) {
+ var symbol = getSymbolOfNode(node);
+ var signaturesOfSymbol = getSignaturesOfSymbol(symbol);
+ // If this function body corresponds to function with multiple signature, it is implementation of overload
+ // e.g.: function foo(a: string): string;
+ // function foo(a: number): number;
+ // function foo(a: any) { // This is implementation of the overloads
+ // return a;
+ // }
+ return signaturesOfSymbol.length > 1 ||
+ // If there is single signature for the symbol, it is overload if that signature isn't coming from the node
+ // e.g.: function foo(a: string): string;
+ // function foo(a: any) { // This is implementation of the overloads
+ // return a;
+ // }
+ (signaturesOfSymbol.length === 1 && signaturesOfSymbol[0].declaration !== node);
+ }
+ return false;
+ }
+ function getNodeCheckFlags(node) {
+ return getNodeLinks(node).flags;
+ }
+ function getEnumMemberValue(node) {
+ computeEnumMemberValues(node.parent);
+ return getNodeLinks(node).enumMemberValue;
+ }
+ function getConstantValue(node) {
+ if (node.kind === 247 /* EnumMember */) {
+ return getEnumMemberValue(node);
+ }
+ var symbol = getNodeLinks(node).resolvedSymbol;
+ if (symbol && (symbol.flags & 8 /* EnumMember */)) {
+ // inline property\index accesses only for const enums
+ if (ts.isConstEnumDeclaration(symbol.valueDeclaration.parent)) {
+ return getEnumMemberValue(symbol.valueDeclaration);
+ }
+ }
+ return undefined;
+ }
+ function isFunctionType(type) {
+ return type.flags & 80896 /* ObjectType */ && getSignaturesOfType(type, 0 /* Call */).length > 0;
+ }
+ function getTypeReferenceSerializationKind(typeName) {
+ // Resolve the symbol as a value to ensure the type can be reached at runtime during emit.
+ var valueSymbol = resolveEntityName(typeName, 107455 /* Value */, /*ignoreErrors*/ true);
+ var constructorType = valueSymbol ? getTypeOfSymbol(valueSymbol) : undefined;
+ if (constructorType && isConstructorType(constructorType)) {
+ return ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue;
+ }
+ // Resolve the symbol as a type so that we can provide a more useful hint for the type serializer.
+ var typeSymbol = resolveEntityName(typeName, 793056 /* Type */, /*ignoreErrors*/ true);
+ // We might not be able to resolve type symbol so use unknown type in that case (eg error case)
+ if (!typeSymbol) {
+ return ts.TypeReferenceSerializationKind.ObjectType;
+ }
+ var type = getDeclaredTypeOfSymbol(typeSymbol);
+ if (type === unknownType) {
+ return ts.TypeReferenceSerializationKind.Unknown;
+ }
+ else if (type.flags & 1 /* Any */) {
+ return ts.TypeReferenceSerializationKind.ObjectType;
+ }
+ else if (allConstituentTypesHaveKind(type, 16 /* Void */)) {
+ return ts.TypeReferenceSerializationKind.VoidType;
+ }
+ else if (allConstituentTypesHaveKind(type, 8 /* Boolean */)) {
+ return ts.TypeReferenceSerializationKind.BooleanType;
+ }
+ else if (allConstituentTypesHaveKind(type, 132 /* NumberLike */)) {
+ return ts.TypeReferenceSerializationKind.NumberLikeType;
+ }
+ else if (allConstituentTypesHaveKind(type, 258 /* StringLike */)) {
+ return ts.TypeReferenceSerializationKind.StringLikeType;
+ }
+ else if (allConstituentTypesHaveKind(type, 8192 /* Tuple */)) {
+ return ts.TypeReferenceSerializationKind.ArrayLikeType;
+ }
+ else if (allConstituentTypesHaveKind(type, 16777216 /* ESSymbol */)) {
+ return ts.TypeReferenceSerializationKind.ESSymbolType;
+ }
+ else if (isFunctionType(type)) {
+ return ts.TypeReferenceSerializationKind.TypeWithCallSignature;
+ }
+ else if (isArrayType(type)) {
+ return ts.TypeReferenceSerializationKind.ArrayLikeType;
+ }
+ else {
+ return ts.TypeReferenceSerializationKind.ObjectType;
+ }
+ }
+ function writeTypeOfDeclaration(declaration, enclosingDeclaration, flags, writer) {
+ // Get type of the symbol if this is the valid symbol otherwise get type at location
+ var symbol = getSymbolOfNode(declaration);
+ var type = symbol && !(symbol.flags & (2048 /* TypeLiteral */ | 131072 /* Signature */))
+ ? getTypeOfSymbol(symbol)
+ : unknownType;
+ getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
+ }
+ function writeReturnTypeOfSignatureDeclaration(signatureDeclaration, enclosingDeclaration, flags, writer) {
+ var signature = getSignatureFromDeclaration(signatureDeclaration);
+ getSymbolDisplayBuilder().buildTypeDisplay(getReturnTypeOfSignature(signature), writer, enclosingDeclaration, flags);
+ }
+ function writeTypeOfExpression(expr, enclosingDeclaration, flags, writer) {
+ var type = getTypeOfExpression(expr);
+ getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
+ }
+ function hasGlobalName(name) {
+ return ts.hasProperty(globals, name);
+ }
+ function getReferencedValueSymbol(reference) {
+ return getNodeLinks(reference).resolvedSymbol ||
+ resolveName(reference, reference.text, 107455 /* Value */ | 1048576 /* ExportValue */ | 8388608 /* Alias */,
+ /*nodeNotFoundMessage*/ undefined, /*nameArg*/ undefined);
+ }
+ function getReferencedValueDeclaration(reference) {
+ ts.Debug.assert(!ts.nodeIsSynthesized(reference));
+ var symbol = getReferencedValueSymbol(reference);
+ return symbol && getExportSymbolOfValueSymbolIfExported(symbol).valueDeclaration;
+ }
+ function instantiateSingleCallFunctionType(functionType, typeArguments) {
+ if (functionType === unknownType) {
+ return unknownType;
+ }
+ var signature = getSingleCallSignature(functionType);
+ if (!signature) {
+ return unknownType;
+ }
+ var instantiatedSignature = getSignatureInstantiation(signature, typeArguments);
+ return getOrCreateTypeFromSignature(instantiatedSignature);
+ }
+ function createResolver() {
+ return {
+ getReferencedExportContainer: getReferencedExportContainer,
+ getReferencedImportDeclaration: getReferencedImportDeclaration,
+ getReferencedNestedRedeclaration: getReferencedNestedRedeclaration,
+ isNestedRedeclaration: isNestedRedeclaration,
+ isValueAliasDeclaration: isValueAliasDeclaration,
+ hasGlobalName: hasGlobalName,
+ isReferencedAliasDeclaration: isReferencedAliasDeclaration,
+ getNodeCheckFlags: getNodeCheckFlags,
+ isTopLevelValueImportEqualsWithEntityName: isTopLevelValueImportEqualsWithEntityName,
+ isDeclarationVisible: isDeclarationVisible,
+ isImplementationOfOverload: isImplementationOfOverload,
+ writeTypeOfDeclaration: writeTypeOfDeclaration,
+ writeReturnTypeOfSignatureDeclaration: writeReturnTypeOfSignatureDeclaration,
+ writeTypeOfExpression: writeTypeOfExpression,
+ isSymbolAccessible: isSymbolAccessible,
+ isEntityNameVisible: isEntityNameVisible,
+ getConstantValue: getConstantValue,
+ collectLinkedAliases: collectLinkedAliases,
+ getReferencedValueDeclaration: getReferencedValueDeclaration,
+ getTypeReferenceSerializationKind: getTypeReferenceSerializationKind,
+ isOptionalParameter: isOptionalParameter
+ };
+ }
+ function initializeTypeChecker() {
+ // Bind all source files and propagate errors
+ ts.forEach(host.getSourceFiles(), function (file) {
+ ts.bindSourceFile(file);
+ });
+ // Initialize global symbol table
+ ts.forEach(host.getSourceFiles(), function (file) {
+ if (!ts.isExternalModule(file)) {
+ mergeSymbolTable(globals, file.locals);
+ }
+ });
+ // Initialize special symbols
+ getSymbolLinks(undefinedSymbol).type = undefinedType;
+ getSymbolLinks(argumentsSymbol).type = getGlobalType("IArguments");
+ getSymbolLinks(unknownSymbol).type = unknownType;
+ globals[undefinedSymbol.name] = undefinedSymbol;
+ // Initialize special types
+ globalArrayType = getGlobalType("Array", /*arity*/ 1);
+ globalObjectType = getGlobalType("Object");
+ globalFunctionType = getGlobalType("Function");
+ globalStringType = getGlobalType("String");
+ globalNumberType = getGlobalType("Number");
+ globalBooleanType = getGlobalType("Boolean");
+ globalRegExpType = getGlobalType("RegExp");
+ jsxElementType = getExportedTypeFromNamespace("JSX", JsxNames.Element);
+ getGlobalClassDecoratorType = ts.memoize(function () { return getGlobalType("ClassDecorator"); });
+ getGlobalPropertyDecoratorType = ts.memoize(function () { return getGlobalType("PropertyDecorator"); });
+ getGlobalMethodDecoratorType = ts.memoize(function () { return getGlobalType("MethodDecorator"); });
+ getGlobalParameterDecoratorType = ts.memoize(function () { return getGlobalType("ParameterDecorator"); });
+ getGlobalTypedPropertyDescriptorType = ts.memoize(function () { return getGlobalType("TypedPropertyDescriptor", /*arity*/ 1); });
+ getGlobalPromiseType = ts.memoize(function () { return getGlobalType("Promise", /*arity*/ 1); });
+ tryGetGlobalPromiseType = ts.memoize(function () { return getGlobalSymbol("Promise", 793056 /* Type */, /*diagnostic*/ undefined) && getGlobalPromiseType(); });
+ getGlobalPromiseLikeType = ts.memoize(function () { return getGlobalType("PromiseLike", /*arity*/ 1); });
+ getInstantiatedGlobalPromiseLikeType = ts.memoize(createInstantiatedPromiseLikeType);
+ getGlobalPromiseConstructorSymbol = ts.memoize(function () { return getGlobalValueSymbol("Promise"); });
+ getGlobalPromiseConstructorLikeType = ts.memoize(function () { return getGlobalType("PromiseConstructorLike"); });
+ getGlobalThenableType = ts.memoize(createThenableType);
+ // If we're in ES6 mode, load the TemplateStringsArray.
+ // Otherwise, default to 'unknown' for the purposes of type checking in LS scenarios.
+ if (languageVersion >= 2 /* ES6 */) {
+ globalTemplateStringsArrayType = getGlobalType("TemplateStringsArray");
+ globalESSymbolType = getGlobalType("Symbol");
+ globalESSymbolConstructorSymbol = getGlobalValueSymbol("Symbol");
+ globalIterableType = getGlobalType("Iterable", /*arity*/ 1);
+ globalIteratorType = getGlobalType("Iterator", /*arity*/ 1);
+ globalIterableIteratorType = getGlobalType("IterableIterator", /*arity*/ 1);
+ }
+ else {
+ globalTemplateStringsArrayType = unknownType;
+ // Consider putting Symbol interface in lib.d.ts. On the plus side, putting it in lib.d.ts would make it
+ // extensible for Polyfilling Symbols. But putting it into lib.d.ts could also break users that have
+ // a global Symbol already, particularly if it is a class.
+ globalESSymbolType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
+ globalESSymbolConstructorSymbol = undefined;
+ globalIterableType = emptyGenericType;
+ globalIteratorType = emptyGenericType;
+ globalIterableIteratorType = emptyGenericType;
+ }
+ anyArrayType = createArrayType(anyType);
+ }
+ function createInstantiatedPromiseLikeType() {
+ var promiseLikeType = getGlobalPromiseLikeType();
+ if (promiseLikeType !== emptyGenericType) {
+ return createTypeReference(promiseLikeType, [anyType]);
+ }
+ return emptyObjectType;
+ }
+ function createThenableType() {
+ // build the thenable type that is used to verify against a non-promise "thenable" operand to `await`.
+ var thenPropertySymbol = createSymbol(67108864 /* Transient */ | 4 /* Property */, "then");
+ getSymbolLinks(thenPropertySymbol).type = globalFunctionType;
+ var thenableType = createObjectType(65536 /* Anonymous */);
+ thenableType.properties = [thenPropertySymbol];
+ thenableType.members = createSymbolTable(thenableType.properties);
+ thenableType.callSignatures = [];
+ thenableType.constructSignatures = [];
+ return thenableType;
+ }
+ // GRAMMAR CHECKING
+ function checkGrammarDecorators(node) {
+ if (!node.decorators) {
+ return false;
+ }
+ if (!ts.nodeCanBeDecorated(node)) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_are_not_valid_here);
+ }
+ else if (node.kind === 145 /* GetAccessor */ || node.kind === 146 /* SetAccessor */) {
+ var accessors = ts.getAllAccessorDeclarations(node.parent.members, node);
+ if (accessors.firstAccessor.decorators && node === accessors.secondAccessor) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name);
+ }
+ }
+ return false;
+ }
+ function checkGrammarModifiers(node) {
+ switch (node.kind) {
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 144 /* Constructor */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 149 /* IndexSignature */:
+ case 218 /* ModuleDeclaration */:
+ case 222 /* ImportDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 228 /* ExportDeclaration */:
+ case 227 /* ExportAssignment */:
+ case 138 /* Parameter */:
+ break;
+ case 213 /* FunctionDeclaration */:
+ if (node.modifiers && (node.modifiers.length > 1 || node.modifiers[0].kind !== 118 /* AsyncKeyword */) &&
+ node.parent.kind !== 219 /* ModuleBlock */ && node.parent.kind !== 248 /* SourceFile */) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+ }
+ break;
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 193 /* VariableStatement */:
+ case 216 /* TypeAliasDeclaration */:
+ if (node.modifiers && node.parent.kind !== 219 /* ModuleBlock */ && node.parent.kind !== 248 /* SourceFile */) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+ }
+ break;
+ case 217 /* EnumDeclaration */:
+ if (node.modifiers && (node.modifiers.length > 1 || node.modifiers[0].kind !== 74 /* ConstKeyword */) &&
+ node.parent.kind !== 219 /* ModuleBlock */ && node.parent.kind !== 248 /* SourceFile */) {
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_cannot_appear_here);
+ }
+ break;
+ default:
+ return false;
+ }
+ if (!node.modifiers) {
+ return;
+ }
+ var lastStatic, lastPrivate, lastProtected, lastDeclare, lastAsync;
+ var flags = 0;
+ for (var _i = 0, _a = node.modifiers; _i < _a.length; _i++) {
+ var modifier = _a[_i];
+ switch (modifier.kind) {
+ case 112 /* PublicKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 110 /* PrivateKeyword */:
+ var text = void 0;
+ if (modifier.kind === 112 /* PublicKeyword */) {
+ text = "public";
+ }
+ else if (modifier.kind === 111 /* ProtectedKeyword */) {
+ text = "protected";
+ lastProtected = modifier;
+ }
+ else {
+ text = "private";
+ lastPrivate = modifier;
+ }
+ if (flags & 112 /* AccessibilityModifier */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics.Accessibility_modifier_already_seen);
+ }
+ else if (flags & 128 /* Static */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "static");
+ }
+ else if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "async");
+ }
+ else if (node.parent.kind === 219 /* ModuleBlock */ || node.parent.kind === 248 /* SourceFile */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_element, text);
+ }
+ else if (flags & 256 /* Abstract */) {
+ if (modifier.kind === 110 /* PrivateKeyword */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, text, "abstract");
+ }
+ else {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, text, "abstract");
+ }
+ }
+ flags |= ts.modifierToFlag(modifier.kind);
+ break;
+ case 113 /* StaticKeyword */:
+ if (flags & 128 /* Static */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "static");
+ }
+ else if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "static", "async");
+ }
+ else if (node.parent.kind === 219 /* ModuleBlock */ || node.parent.kind === 248 /* SourceFile */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_module_element, "static");
+ }
+ else if (node.kind === 138 /* Parameter */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "static");
+ }
+ else if (flags & 256 /* Abstract */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
+ }
+ flags |= 128 /* Static */;
+ lastStatic = modifier;
+ break;
+ case 82 /* ExportKeyword */:
+ if (flags & 1 /* Export */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "export");
+ }
+ else if (flags & 2 /* Ambient */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "declare");
+ }
+ else if (flags & 256 /* Abstract */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "abstract");
+ }
+ else if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_must_precede_1_modifier, "export", "async");
+ }
+ else if (node.parent.kind === 214 /* ClassDeclaration */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "export");
+ }
+ else if (node.kind === 138 /* Parameter */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "export");
+ }
+ flags |= 1 /* Export */;
+ break;
+ case 122 /* DeclareKeyword */:
+ if (flags & 2 /* Ambient */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "declare");
+ }
+ else if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
+ }
+ else if (node.parent.kind === 214 /* ClassDeclaration */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_class_element, "declare");
+ }
+ else if (node.kind === 138 /* Parameter */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "declare");
+ }
+ else if (ts.isInAmbientContext(node.parent) && node.parent.kind === 219 /* ModuleBlock */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics.A_declare_modifier_cannot_be_used_in_an_already_ambient_context);
+ }
+ flags |= 2 /* Ambient */;
+ lastDeclare = modifier;
+ break;
+ case 115 /* AbstractKeyword */:
+ if (flags & 256 /* Abstract */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "abstract");
+ }
+ if (node.kind !== 214 /* ClassDeclaration */) {
+ if (node.kind !== 143 /* MethodDeclaration */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics.abstract_modifier_can_only_appear_on_a_class_or_method_declaration);
+ }
+ if (!(node.parent.kind === 214 /* ClassDeclaration */ && node.parent.flags & 256 /* Abstract */)) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics.Abstract_methods_can_only_appear_within_an_abstract_class);
+ }
+ if (flags & 128 /* Static */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "static", "abstract");
+ }
+ if (flags & 32 /* Private */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_with_1_modifier, "private", "abstract");
+ }
+ }
+ flags |= 256 /* Abstract */;
+ break;
+ case 118 /* AsyncKeyword */:
+ if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_already_seen, "async");
+ }
+ else if (flags & 2 /* Ambient */ || ts.isInAmbientContext(node.parent)) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_be_used_in_an_ambient_context, "async");
+ }
+ else if (node.kind === 138 /* Parameter */) {
+ return grammarErrorOnNode(modifier, ts.Diagnostics._0_modifier_cannot_appear_on_a_parameter, "async");
+ }
+ flags |= 512 /* Async */;
+ lastAsync = modifier;
+ break;
+ }
+ }
+ if (node.kind === 144 /* Constructor */) {
+ if (flags & 128 /* Static */) {
+ return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "static");
+ }
+ if (flags & 256 /* Abstract */) {
+ return grammarErrorOnNode(lastStatic, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "abstract");
+ }
+ else if (flags & 64 /* Protected */) {
+ return grammarErrorOnNode(lastProtected, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "protected");
+ }
+ else if (flags & 32 /* Private */) {
+ return grammarErrorOnNode(lastPrivate, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "private");
+ }
+ else if (flags & 512 /* Async */) {
+ return grammarErrorOnNode(lastAsync, ts.Diagnostics._0_modifier_cannot_appear_on_a_constructor_declaration, "async");
+ }
+ return;
+ }
+ else if ((node.kind === 222 /* ImportDeclaration */ || node.kind === 221 /* ImportEqualsDeclaration */) && flags & 2 /* Ambient */) {
+ return grammarErrorOnNode(lastDeclare, ts.Diagnostics.A_0_modifier_cannot_be_used_with_an_import_declaration, "declare");
+ }
+ else if (node.kind === 138 /* Parameter */ && (flags & 112 /* AccessibilityModifier */) && ts.isBindingPattern(node.name)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.A_parameter_property_may_not_be_a_binding_pattern);
+ }
+ if (flags & 512 /* Async */) {
+ return checkGrammarAsyncModifier(node, lastAsync);
+ }
+ }
+ function checkGrammarAsyncModifier(node, asyncModifier) {
+ if (languageVersion < 2 /* ES6 */) {
+ return grammarErrorOnNode(asyncModifier, ts.Diagnostics.Async_functions_are_only_available_when_targeting_ECMAScript_6_and_higher);
+ }
+ switch (node.kind) {
+ case 143 /* MethodDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ if (!node.asteriskToken) {
+ return false;
+ }
+ break;
+ }
+ return grammarErrorOnNode(asyncModifier, ts.Diagnostics._0_modifier_cannot_be_used_here, "async");
+ }
+ function checkGrammarForDisallowedTrailingComma(list) {
+ if (list && list.hasTrailingComma) {
+ var start = list.end - ",".length;
+ var end = list.end;
+ var sourceFile = ts.getSourceFileOfNode(list[0]);
+ return grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Trailing_comma_not_allowed);
+ }
+ }
+ function checkGrammarTypeParameterList(node, typeParameters, file) {
+ if (checkGrammarForDisallowedTrailingComma(typeParameters)) {
+ return true;
+ }
+ if (typeParameters && typeParameters.length === 0) {
+ var start = typeParameters.pos - "<".length;
+ var end = ts.skipTrivia(file.text, typeParameters.end) + ">".length;
+ return grammarErrorAtPos(file, start, end - start, ts.Diagnostics.Type_parameter_list_cannot_be_empty);
+ }
+ }
+ function checkGrammarParameterList(parameters) {
+ if (checkGrammarForDisallowedTrailingComma(parameters)) {
+ return true;
+ }
+ var seenOptionalParameter = false;
+ var parameterCount = parameters.length;
+ for (var i = 0; i < parameterCount; i++) {
+ var parameter = parameters[i];
+ if (parameter.dotDotDotToken) {
+ if (i !== (parameterCount - 1)) {
+ return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_rest_parameter_must_be_last_in_a_parameter_list);
+ }
+ if (ts.isBindingPattern(parameter.name)) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_rest_element_cannot_contain_a_binding_pattern);
+ }
+ if (parameter.questionToken) {
+ return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_rest_parameter_cannot_be_optional);
+ }
+ if (parameter.initializer) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_rest_parameter_cannot_have_an_initializer);
+ }
+ }
+ else if (parameter.questionToken) {
+ seenOptionalParameter = true;
+ if (parameter.initializer) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.Parameter_cannot_have_question_mark_and_initializer);
+ }
+ }
+ else if (seenOptionalParameter && !parameter.initializer) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.A_required_parameter_cannot_follow_an_optional_parameter);
+ }
+ }
+ }
+ function checkGrammarFunctionLikeDeclaration(node) {
+ // Prevent cascading error by short-circuit
+ var file = ts.getSourceFileOfNode(node);
+ return checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarTypeParameterList(node, node.typeParameters, file) ||
+ checkGrammarParameterList(node.parameters) || checkGrammarArrowFunction(node, file);
+ }
+ function checkGrammarArrowFunction(node, file) {
+ if (node.kind === 174 /* ArrowFunction */) {
+ var arrowFunction = node;
+ var startLine = ts.getLineAndCharacterOfPosition(file, arrowFunction.equalsGreaterThanToken.pos).line;
+ var endLine = ts.getLineAndCharacterOfPosition(file, arrowFunction.equalsGreaterThanToken.end).line;
+ if (startLine !== endLine) {
+ return grammarErrorOnNode(arrowFunction.equalsGreaterThanToken, ts.Diagnostics.Line_terminator_not_permitted_before_arrow);
+ }
+ }
+ return false;
+ }
+ function checkGrammarIndexSignatureParameters(node) {
+ var parameter = node.parameters[0];
+ if (node.parameters.length !== 1) {
+ if (parameter) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
+ }
+ else {
+ return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_exactly_one_parameter);
+ }
+ }
+ if (parameter.dotDotDotToken) {
+ return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.An_index_signature_cannot_have_a_rest_parameter);
+ }
+ if (parameter.flags & 2035 /* Modifier */) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_accessibility_modifier);
+ }
+ if (parameter.questionToken) {
+ return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.An_index_signature_parameter_cannot_have_a_question_mark);
+ }
+ if (parameter.initializer) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_cannot_have_an_initializer);
+ }
+ if (!parameter.type) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_must_have_a_type_annotation);
+ }
+ if (parameter.type.kind !== 130 /* StringKeyword */ && parameter.type.kind !== 128 /* NumberKeyword */) {
+ return grammarErrorOnNode(parameter.name, ts.Diagnostics.An_index_signature_parameter_type_must_be_string_or_number);
+ }
+ if (!node.type) {
+ return grammarErrorOnNode(node, ts.Diagnostics.An_index_signature_must_have_a_type_annotation);
+ }
+ }
+ function checkGrammarForIndexSignatureModifier(node) {
+ if (node.flags & 2035 /* Modifier */) {
+ grammarErrorOnFirstToken(node, ts.Diagnostics.Modifiers_not_permitted_on_index_signature_members);
+ }
+ }
+ function checkGrammarIndexSignature(node) {
+ // Prevent cascading error by short-circuit
+ return checkGrammarDecorators(node) || checkGrammarModifiers(node) || checkGrammarIndexSignatureParameters(node) || checkGrammarForIndexSignatureModifier(node);
+ }
+ function checkGrammarForAtLeastOneTypeArgument(node, typeArguments) {
+ if (typeArguments && typeArguments.length === 0) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ var start = typeArguments.pos - "<".length;
+ var end = ts.skipTrivia(sourceFile.text, typeArguments.end) + ">".length;
+ return grammarErrorAtPos(sourceFile, start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
+ }
+ }
+ function checkGrammarTypeArguments(node, typeArguments) {
+ return checkGrammarForDisallowedTrailingComma(typeArguments) ||
+ checkGrammarForAtLeastOneTypeArgument(node, typeArguments);
+ }
+ function checkGrammarForOmittedArgument(node, args) {
+ if (args) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ for (var _i = 0; _i < args.length; _i++) {
+ var arg = args[_i];
+ if (arg.kind === 187 /* OmittedExpression */) {
+ return grammarErrorAtPos(sourceFile, arg.pos, 0, ts.Diagnostics.Argument_expression_expected);
+ }
+ }
+ }
+ }
+ function checkGrammarArguments(node, args) {
+ return checkGrammarForDisallowedTrailingComma(args) ||
+ checkGrammarForOmittedArgument(node, args);
+ }
+ function checkGrammarHeritageClause(node) {
+ var types = node.types;
+ if (checkGrammarForDisallowedTrailingComma(types)) {
+ return true;
+ }
+ if (types && types.length === 0) {
+ var listType = ts.tokenToString(node.token);
+ var sourceFile = ts.getSourceFileOfNode(node);
+ return grammarErrorAtPos(sourceFile, types.pos, 0, ts.Diagnostics._0_list_cannot_be_empty, listType);
+ }
+ }
+ function checkGrammarClassDeclarationHeritageClauses(node) {
+ var seenExtendsClause = false;
+ var seenImplementsClause = false;
+ if (!checkGrammarDecorators(node) && !checkGrammarModifiers(node) && node.heritageClauses) {
+ for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
+ var heritageClause = _a[_i];
+ if (heritageClause.token === 83 /* ExtendsKeyword */) {
+ if (seenExtendsClause) {
+ return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
+ }
+ if (seenImplementsClause) {
+ return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_must_precede_implements_clause);
+ }
+ if (heritageClause.types.length > 1) {
+ return grammarErrorOnFirstToken(heritageClause.types[1], ts.Diagnostics.Classes_can_only_extend_a_single_class);
+ }
+ seenExtendsClause = true;
+ }
+ else {
+ ts.Debug.assert(heritageClause.token === 106 /* ImplementsKeyword */);
+ if (seenImplementsClause) {
+ return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.implements_clause_already_seen);
+ }
+ seenImplementsClause = true;
+ }
+ // Grammar checking heritageClause inside class declaration
+ checkGrammarHeritageClause(heritageClause);
+ }
+ }
+ }
+ function checkGrammarInterfaceDeclaration(node) {
+ var seenExtendsClause = false;
+ if (node.heritageClauses) {
+ for (var _i = 0, _a = node.heritageClauses; _i < _a.length; _i++) {
+ var heritageClause = _a[_i];
+ if (heritageClause.token === 83 /* ExtendsKeyword */) {
+ if (seenExtendsClause) {
+ return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.extends_clause_already_seen);
+ }
+ seenExtendsClause = true;
+ }
+ else {
+ ts.Debug.assert(heritageClause.token === 106 /* ImplementsKeyword */);
+ return grammarErrorOnFirstToken(heritageClause, ts.Diagnostics.Interface_declaration_cannot_have_implements_clause);
+ }
+ // Grammar checking heritageClause inside class declaration
+ checkGrammarHeritageClause(heritageClause);
+ }
+ }
+ return false;
+ }
+ function checkGrammarComputedPropertyName(node) {
+ // If node is not a computedPropertyName, just skip the grammar checking
+ if (node.kind !== 136 /* ComputedPropertyName */) {
+ return false;
+ }
+ var computedPropertyName = node;
+ if (computedPropertyName.expression.kind === 181 /* BinaryExpression */ && computedPropertyName.expression.operatorToken.kind === 24 /* CommaToken */) {
+ return grammarErrorOnNode(computedPropertyName.expression, ts.Diagnostics.A_comma_expression_is_not_allowed_in_a_computed_property_name);
+ }
+ }
+ function checkGrammarForGenerator(node) {
+ if (node.asteriskToken) {
+ ts.Debug.assert(node.kind === 213 /* FunctionDeclaration */ ||
+ node.kind === 173 /* FunctionExpression */ ||
+ node.kind === 143 /* MethodDeclaration */);
+ if (ts.isInAmbientContext(node)) {
+ return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_not_allowed_in_an_ambient_context);
+ }
+ if (!node.body) {
+ return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.An_overload_signature_cannot_be_declared_as_a_generator);
+ }
+ if (languageVersion < 2 /* ES6 */) {
+ return grammarErrorOnNode(node.asteriskToken, ts.Diagnostics.Generators_are_only_available_when_targeting_ECMAScript_6_or_higher);
+ }
+ }
+ }
+ function checkGrammarForInvalidQuestionMark(node, questionToken, message) {
+ if (questionToken) {
+ return grammarErrorOnNode(questionToken, message);
+ }
+ }
+ function checkGrammarObjectLiteralExpression(node, inDestructuring) {
+ var seen = {};
+ var Property = 1;
+ var GetAccessor = 2;
+ var SetAccesor = 4;
+ var GetOrSetAccessor = GetAccessor | SetAccesor;
+ for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
+ var prop = _a[_i];
+ var name_16 = prop.name;
+ if (prop.kind === 187 /* OmittedExpression */ ||
+ name_16.kind === 136 /* ComputedPropertyName */) {
+ // If the name is not a ComputedPropertyName, the grammar checking will skip it
+ checkGrammarComputedPropertyName(name_16);
+ continue;
+ }
+ if (prop.kind === 246 /* ShorthandPropertyAssignment */ && !inDestructuring && prop.objectAssignmentInitializer) {
+ // having objectAssignmentInitializer is only valid in ObjectAssignmentPattern
+ // outside of destructuring it is a syntax error
+ return grammarErrorOnNode(prop.equalsToken, ts.Diagnostics.can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment);
+ }
+ // ECMA-262 11.1.5 Object Initialiser
+ // If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
+ // a.This production is contained in strict code and IsDataDescriptor(previous) is true and
+ // IsDataDescriptor(propId.descriptor) is true.
+ // b.IsDataDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true.
+ // c.IsAccessorDescriptor(previous) is true and IsDataDescriptor(propId.descriptor) is true.
+ // d.IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true
+ // and either both previous and propId.descriptor have[[Get]] fields or both previous and propId.descriptor have[[Set]] fields
+ var currentKind = void 0;
+ if (prop.kind === 245 /* PropertyAssignment */ || prop.kind === 246 /* ShorthandPropertyAssignment */) {
+ // Grammar checking for computedPropertName and shorthandPropertyAssignment
+ checkGrammarForInvalidQuestionMark(prop, prop.questionToken, ts.Diagnostics.An_object_member_cannot_be_declared_optional);
+ if (name_16.kind === 8 /* NumericLiteral */) {
+ checkGrammarNumericLiteral(name_16);
+ }
+ currentKind = Property;
+ }
+ else if (prop.kind === 143 /* MethodDeclaration */) {
+ currentKind = Property;
+ }
+ else if (prop.kind === 145 /* GetAccessor */) {
+ currentKind = GetAccessor;
+ }
+ else if (prop.kind === 146 /* SetAccessor */) {
+ currentKind = SetAccesor;
+ }
+ else {
+ ts.Debug.fail("Unexpected syntax kind:" + prop.kind);
+ }
+ if (!ts.hasProperty(seen, name_16.text)) {
+ seen[name_16.text] = currentKind;
+ }
+ else {
+ var existingKind = seen[name_16.text];
+ if (currentKind === Property && existingKind === Property) {
+ continue;
+ }
+ else if ((currentKind & GetOrSetAccessor) && (existingKind & GetOrSetAccessor)) {
+ if (existingKind !== GetOrSetAccessor && currentKind !== existingKind) {
+ seen[name_16.text] = currentKind | existingKind;
+ }
+ else {
+ return grammarErrorOnNode(name_16, ts.Diagnostics.An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name);
+ }
+ }
+ else {
+ return grammarErrorOnNode(name_16, ts.Diagnostics.An_object_literal_cannot_have_property_and_accessor_with_the_same_name);
+ }
+ }
+ }
+ }
+ function checkGrammarJsxElement(node) {
+ var seen = {};
+ for (var _i = 0, _a = node.attributes; _i < _a.length; _i++) {
+ var attr = _a[_i];
+ if (attr.kind === 239 /* JsxSpreadAttribute */) {
+ continue;
+ }
+ var jsxAttr = attr;
+ var name_17 = jsxAttr.name;
+ if (!ts.hasProperty(seen, name_17.text)) {
+ seen[name_17.text] = true;
+ }
+ else {
+ return grammarErrorOnNode(name_17, ts.Diagnostics.JSX_elements_cannot_have_multiple_attributes_with_the_same_name);
+ }
+ var initializer = jsxAttr.initializer;
+ if (initializer && initializer.kind === 240 /* JsxExpression */ && !initializer.expression) {
+ return grammarErrorOnNode(jsxAttr.initializer, ts.Diagnostics.JSX_attributes_must_only_be_assigned_a_non_empty_expression);
+ }
+ }
+ }
+ function checkGrammarForInOrForOfStatement(forInOrOfStatement) {
+ if (checkGrammarStatementInAmbientContext(forInOrOfStatement)) {
+ return true;
+ }
+ if (forInOrOfStatement.initializer.kind === 212 /* VariableDeclarationList */) {
+ var variableList = forInOrOfStatement.initializer;
+ if (!checkGrammarVariableDeclarationList(variableList)) {
+ if (variableList.declarations.length > 1) {
+ var diagnostic = forInOrOfStatement.kind === 200 /* ForInStatement */
+ ? ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement
+ : ts.Diagnostics.Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement;
+ return grammarErrorOnFirstToken(variableList.declarations[1], diagnostic);
+ }
+ var firstDeclaration = variableList.declarations[0];
+ if (firstDeclaration.initializer) {
+ var diagnostic = forInOrOfStatement.kind === 200 /* ForInStatement */
+ ? ts.Diagnostics.The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer
+ : ts.Diagnostics.The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer;
+ return grammarErrorOnNode(firstDeclaration.name, diagnostic);
+ }
+ if (firstDeclaration.type) {
+ var diagnostic = forInOrOfStatement.kind === 200 /* ForInStatement */
+ ? ts.Diagnostics.The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation
+ : ts.Diagnostics.The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation;
+ return grammarErrorOnNode(firstDeclaration, diagnostic);
+ }
+ }
+ }
+ return false;
+ }
+ function checkGrammarAccessor(accessor) {
+ var kind = accessor.kind;
+ if (languageVersion < 1 /* ES5 */) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher);
+ }
+ else if (ts.isInAmbientContext(accessor)) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.An_accessor_cannot_be_declared_in_an_ambient_context);
+ }
+ else if (accessor.body === undefined) {
+ return grammarErrorAtPos(ts.getSourceFileOfNode(accessor), accessor.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
+ }
+ else if (accessor.typeParameters) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.An_accessor_cannot_have_type_parameters);
+ }
+ else if (kind === 145 /* GetAccessor */ && accessor.parameters.length) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_get_accessor_cannot_have_parameters);
+ }
+ else if (kind === 146 /* SetAccessor */) {
+ if (accessor.type) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_cannot_have_a_return_type_annotation);
+ }
+ else if (accessor.parameters.length !== 1) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_must_have_exactly_one_parameter);
+ }
+ else {
+ var parameter = accessor.parameters[0];
+ if (parameter.dotDotDotToken) {
+ return grammarErrorOnNode(parameter.dotDotDotToken, ts.Diagnostics.A_set_accessor_cannot_have_rest_parameter);
+ }
+ else if (parameter.flags & 2035 /* Modifier */) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_parameter_property_is_only_allowed_in_a_constructor_implementation);
+ }
+ else if (parameter.questionToken) {
+ return grammarErrorOnNode(parameter.questionToken, ts.Diagnostics.A_set_accessor_cannot_have_an_optional_parameter);
+ }
+ else if (parameter.initializer) {
+ return grammarErrorOnNode(accessor.name, ts.Diagnostics.A_set_accessor_parameter_cannot_have_an_initializer);
+ }
+ }
+ }
+ }
+ function checkGrammarForNonSymbolComputedProperty(node, message) {
+ if (node.kind === 136 /* ComputedPropertyName */ && !ts.isWellKnownSymbolSyntactically(node.expression)) {
+ return grammarErrorOnNode(node, message);
+ }
+ }
+ function checkGrammarMethod(node) {
+ if (checkGrammarDisallowedModifiersOnObjectLiteralExpressionMethod(node) ||
+ checkGrammarFunctionLikeDeclaration(node) ||
+ checkGrammarForGenerator(node)) {
+ return true;
+ }
+ if (node.parent.kind === 165 /* ObjectLiteralExpression */) {
+ if (checkGrammarForInvalidQuestionMark(node, node.questionToken, ts.Diagnostics.A_class_member_cannot_be_declared_optional)) {
+ return true;
+ }
+ else if (node.body === undefined) {
+ return grammarErrorAtPos(getSourceFile(node), node.end - 1, ";".length, ts.Diagnostics._0_expected, "{");
+ }
+ }
+ if (ts.isClassLike(node.parent)) {
+ if (checkGrammarForInvalidQuestionMark(node, node.questionToken, ts.Diagnostics.A_class_member_cannot_be_declared_optional)) {
+ return true;
+ }
+ // Technically, computed properties in ambient contexts is disallowed
+ // for property declarations and accessors too, not just methods.
+ // However, property declarations disallow computed names in general,
+ // and accessors are not allowed in ambient contexts in general,
+ // so this error only really matters for methods.
+ if (ts.isInAmbientContext(node)) {
+ return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol);
+ }
+ else if (!node.body) {
+ return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol);
+ }
+ }
+ else if (node.parent.kind === 215 /* InterfaceDeclaration */) {
+ return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol);
+ }
+ else if (node.parent.kind === 155 /* TypeLiteral */) {
+ return checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol);
+ }
+ }
+ function isIterationStatement(node, lookInLabeledStatements) {
+ switch (node.kind) {
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ return true;
+ case 207 /* LabeledStatement */:
+ return lookInLabeledStatements && isIterationStatement(node.statement, lookInLabeledStatements);
+ }
+ return false;
+ }
+ function checkGrammarBreakOrContinueStatement(node) {
+ var current = node;
+ while (current) {
+ if (ts.isFunctionLike(current)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.Jump_target_cannot_cross_function_boundary);
+ }
+ switch (current.kind) {
+ case 207 /* LabeledStatement */:
+ if (node.label && current.label.text === node.label.text) {
+ // found matching label - verify that label usage is correct
+ // continue can only target labels that are on iteration statements
+ var isMisplacedContinueLabel = node.kind === 202 /* ContinueStatement */
+ && !isIterationStatement(current.statement, /*lookInLabeledStatement*/ true);
+ if (isMisplacedContinueLabel) {
+ return grammarErrorOnNode(node, ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement);
+ }
+ return false;
+ }
+ break;
+ case 206 /* SwitchStatement */:
+ if (node.kind === 203 /* BreakStatement */ && !node.label) {
+ // unlabeled break within switch statement - ok
+ return false;
+ }
+ break;
+ default:
+ if (isIterationStatement(current, /*lookInLabeledStatement*/ false) && !node.label) {
+ // unlabeled break or continue within iteration statement - ok
+ return false;
+ }
+ break;
+ }
+ current = current.parent;
+ }
+ if (node.label) {
+ var message = node.kind === 203 /* BreakStatement */
+ ? ts.Diagnostics.A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement
+ : ts.Diagnostics.A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement;
+ return grammarErrorOnNode(node, message);
+ }
+ else {
+ var message = node.kind === 203 /* BreakStatement */
+ ? ts.Diagnostics.A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement
+ : ts.Diagnostics.A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement;
+ return grammarErrorOnNode(node, message);
+ }
+ }
+ function checkGrammarBindingElement(node) {
+ if (node.dotDotDotToken) {
+ var elements = node.parent.elements;
+ if (node !== ts.lastOrUndefined(elements)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.A_rest_element_must_be_last_in_an_array_destructuring_pattern);
+ }
+ if (node.name.kind === 162 /* ArrayBindingPattern */ || node.name.kind === 161 /* ObjectBindingPattern */) {
+ return grammarErrorOnNode(node.name, ts.Diagnostics.A_rest_element_cannot_contain_a_binding_pattern);
+ }
+ if (node.initializer) {
+ // Error on equals token which immediate precedes the initializer
+ return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.initializer.pos - 1, 1, ts.Diagnostics.A_rest_element_cannot_have_an_initializer);
+ }
+ }
+ }
+ function checkGrammarVariableDeclaration(node) {
+ if (node.parent.parent.kind !== 200 /* ForInStatement */ && node.parent.parent.kind !== 201 /* ForOfStatement */) {
+ if (ts.isInAmbientContext(node)) {
+ if (node.initializer) {
+ // Error on equals token which immediate precedes the initializer
+ var equalsTokenLength = "=".length;
+ return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.initializer.pos - equalsTokenLength, equalsTokenLength, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
+ }
+ }
+ else if (!node.initializer) {
+ if (ts.isBindingPattern(node.name) && !ts.isBindingPattern(node.parent)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.A_destructuring_declaration_must_have_an_initializer);
+ }
+ if (ts.isConst(node)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_must_be_initialized);
+ }
+ }
+ }
+ var checkLetConstNames = languageVersion >= 2 /* ES6 */ && (ts.isLet(node) || ts.isConst(node));
+ // 1. LexicalDeclaration : LetOrConst BindingList ;
+ // It is a Syntax Error if the BoundNames of BindingList contains "let".
+ // 2. ForDeclaration: ForDeclaration : LetOrConst ForBinding
+ // It is a Syntax Error if the BoundNames of ForDeclaration contains "let".
+ // It is a SyntaxError if a VariableDeclaration or VariableDeclarationNoIn occurs within strict code
+ // and its Identifier is eval or arguments
+ return checkLetConstNames && checkGrammarNameInLetOrConstDeclarations(node.name);
+ }
+ function checkGrammarNameInLetOrConstDeclarations(name) {
+ if (name.kind === 69 /* Identifier */) {
+ if (name.text === "let") {
+ return grammarErrorOnNode(name, ts.Diagnostics.let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations);
+ }
+ }
+ else {
+ var elements = name.elements;
+ for (var _i = 0; _i < elements.length; _i++) {
+ var element = elements[_i];
+ if (element.kind !== 187 /* OmittedExpression */) {
+ checkGrammarNameInLetOrConstDeclarations(element.name);
+ }
+ }
+ }
+ }
+ function checkGrammarVariableDeclarationList(declarationList) {
+ var declarations = declarationList.declarations;
+ if (checkGrammarForDisallowedTrailingComma(declarationList.declarations)) {
+ return true;
+ }
+ if (!declarationList.declarations.length) {
+ return grammarErrorAtPos(ts.getSourceFileOfNode(declarationList), declarations.pos, declarations.end - declarations.pos, ts.Diagnostics.Variable_declaration_list_cannot_be_empty);
+ }
+ }
+ function allowLetAndConstDeclarations(parent) {
+ switch (parent.kind) {
+ case 196 /* IfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 205 /* WithStatement */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ return false;
+ case 207 /* LabeledStatement */:
+ return allowLetAndConstDeclarations(parent.parent);
+ }
+ return true;
+ }
+ function checkGrammarForDisallowedLetOrConstStatement(node) {
+ if (!allowLetAndConstDeclarations(node.parent)) {
+ if (ts.isLet(node.declarationList)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.let_declarations_can_only_be_declared_inside_a_block);
+ }
+ else if (ts.isConst(node.declarationList)) {
+ return grammarErrorOnNode(node, ts.Diagnostics.const_declarations_can_only_be_declared_inside_a_block);
+ }
+ }
+ }
+ function isIntegerLiteral(expression) {
+ if (expression.kind === 179 /* PrefixUnaryExpression */) {
+ var unaryExpression = expression;
+ if (unaryExpression.operator === 35 /* PlusToken */ || unaryExpression.operator === 36 /* MinusToken */) {
+ expression = unaryExpression.operand;
+ }
+ }
+ if (expression.kind === 8 /* NumericLiteral */) {
+ // Allows for scientific notation since literalExpression.text was formed by
+ // coercing a number to a string. Sometimes this coercion can yield a string
+ // in scientific notation.
+ // We also don't need special logic for hex because a hex integer is converted
+ // to decimal when it is coerced.
+ return /^[0-9]+([eE]\+?[0-9]+)?$/.test(expression.text);
+ }
+ return false;
+ }
+ function hasParseDiagnostics(sourceFile) {
+ return sourceFile.parseDiagnostics.length > 0;
+ }
+ function grammarErrorOnFirstToken(node, message, arg0, arg1, arg2) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ if (!hasParseDiagnostics(sourceFile)) {
+ var span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+ diagnostics.add(ts.createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2));
+ return true;
+ }
+ }
+ function grammarErrorAtPos(sourceFile, start, length, message, arg0, arg1, arg2) {
+ if (!hasParseDiagnostics(sourceFile)) {
+ diagnostics.add(ts.createFileDiagnostic(sourceFile, start, length, message, arg0, arg1, arg2));
+ return true;
+ }
+ }
+ function grammarErrorOnNode(node, message, arg0, arg1, arg2) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ if (!hasParseDiagnostics(sourceFile)) {
+ diagnostics.add(ts.createDiagnosticForNode(node, message, arg0, arg1, arg2));
+ return true;
+ }
+ }
+ function isEvalOrArgumentsIdentifier(node) {
+ return node.kind === 69 /* Identifier */ &&
+ (node.text === "eval" || node.text === "arguments");
+ }
+ function checkGrammarConstructorTypeParameters(node) {
+ if (node.typeParameters) {
+ return grammarErrorAtPos(ts.getSourceFileOfNode(node), node.typeParameters.pos, node.typeParameters.end - node.typeParameters.pos, ts.Diagnostics.Type_parameters_cannot_appear_on_a_constructor_declaration);
+ }
+ }
+ function checkGrammarConstructorTypeAnnotation(node) {
+ if (node.type) {
+ return grammarErrorOnNode(node.type, ts.Diagnostics.Type_annotation_cannot_appear_on_a_constructor_declaration);
+ }
+ }
+ function checkGrammarProperty(node) {
+ if (ts.isClassLike(node.parent)) {
+ if (checkGrammarForInvalidQuestionMark(node, node.questionToken, ts.Diagnostics.A_class_member_cannot_be_declared_optional) ||
+ checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol)) {
+ return true;
+ }
+ }
+ else if (node.parent.kind === 215 /* InterfaceDeclaration */) {
+ if (checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol)) {
+ return true;
+ }
+ }
+ else if (node.parent.kind === 155 /* TypeLiteral */) {
+ if (checkGrammarForNonSymbolComputedProperty(node.name, ts.Diagnostics.A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol)) {
+ return true;
+ }
+ }
+ if (ts.isInAmbientContext(node) && node.initializer) {
+ return grammarErrorOnFirstToken(node.initializer, ts.Diagnostics.Initializers_are_not_allowed_in_ambient_contexts);
+ }
+ }
+ function checkGrammarTopLevelElementForRequiredDeclareModifier(node) {
+ // A declare modifier is required for any top level .d.ts declaration except export=, export default,
+ // interfaces and imports categories:
+ //
+ // DeclarationElement:
+ // ExportAssignment
+ // export_opt InterfaceDeclaration
+ // export_opt ImportDeclaration
+ // export_opt ExternalImportDeclaration
+ // export_opt AmbientDeclaration
+ //
+ if (node.kind === 215 /* InterfaceDeclaration */ ||
+ node.kind === 222 /* ImportDeclaration */ ||
+ node.kind === 221 /* ImportEqualsDeclaration */ ||
+ node.kind === 228 /* ExportDeclaration */ ||
+ node.kind === 227 /* ExportAssignment */ ||
+ (node.flags & 2 /* Ambient */) ||
+ (node.flags & (1 /* Export */ | 1024 /* Default */))) {
+ return false;
+ }
+ return grammarErrorOnFirstToken(node, ts.Diagnostics.A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file);
+ }
+ function checkGrammarTopLevelElementsForRequiredDeclareModifier(file) {
+ for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
+ var decl = _a[_i];
+ if (ts.isDeclaration(decl) || decl.kind === 193 /* VariableStatement */) {
+ if (checkGrammarTopLevelElementForRequiredDeclareModifier(decl)) {
+ return true;
+ }
+ }
+ }
+ }
+ function checkGrammarSourceFile(node) {
+ return ts.isInAmbientContext(node) && checkGrammarTopLevelElementsForRequiredDeclareModifier(node);
+ }
+ function checkGrammarStatementInAmbientContext(node) {
+ if (ts.isInAmbientContext(node)) {
+ // An accessors is already reported about the ambient context
+ if (isAccessor(node.parent.kind)) {
+ return getNodeLinks(node).hasReportedStatementInAmbientContext = true;
+ }
+ // Find containing block which is either Block, ModuleBlock, SourceFile
+ var links = getNodeLinks(node);
+ if (!links.hasReportedStatementInAmbientContext && ts.isFunctionLike(node.parent)) {
+ return getNodeLinks(node).hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.An_implementation_cannot_be_declared_in_ambient_contexts);
+ }
+ // We are either parented by another statement, or some sort of block.
+ // If we're in a block, we only want to really report an error once
+ // to prevent noisyness. So use a bit on the block to indicate if
+ // this has already been reported, and don't report if it has.
+ //
+ if (node.parent.kind === 192 /* Block */ || node.parent.kind === 219 /* ModuleBlock */ || node.parent.kind === 248 /* SourceFile */) {
+ var links_1 = getNodeLinks(node.parent);
+ // Check if the containing block ever report this error
+ if (!links_1.hasReportedStatementInAmbientContext) {
+ return links_1.hasReportedStatementInAmbientContext = grammarErrorOnFirstToken(node, ts.Diagnostics.Statements_are_not_allowed_in_ambient_contexts);
+ }
+ }
+ else {
+ }
+ }
+ }
+ function checkGrammarNumericLiteral(node) {
+ // Grammar checking
+ if (node.flags & 65536 /* OctalLiteral */ && languageVersion >= 1 /* ES5 */) {
+ return grammarErrorOnNode(node, ts.Diagnostics.Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher);
+ }
+ }
+ function grammarErrorAfterFirstToken(node, message, arg0, arg1, arg2) {
+ var sourceFile = ts.getSourceFileOfNode(node);
+ if (!hasParseDiagnostics(sourceFile)) {
+ var span = ts.getSpanOfTokenAtPosition(sourceFile, node.pos);
+ diagnostics.add(ts.createFileDiagnostic(sourceFile, ts.textSpanEnd(span), /*length*/ 0, message, arg0, arg1, arg2));
+ return true;
+ }
+ }
+ }
+ ts.createTypeChecker = createTypeChecker;
+})(ts || (ts = {}));
+/// <reference path="checker.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ function getDeclarationDiagnostics(host, resolver, targetSourceFile) {
+ var diagnostics = [];
+ var jsFilePath = ts.getOwnEmitOutputFilePath(targetSourceFile, host, ".js");
+ emitDeclarations(host, resolver, diagnostics, jsFilePath, targetSourceFile);
+ return diagnostics;
+ }
+ ts.getDeclarationDiagnostics = getDeclarationDiagnostics;
+ function emitDeclarations(host, resolver, diagnostics, jsFilePath, root) {
+ var newLine = host.getNewLine();
+ var compilerOptions = host.getCompilerOptions();
+ var write;
+ var writeLine;
+ var increaseIndent;
+ var decreaseIndent;
+ var writeTextOfNode;
+ var writer = createAndSetNewTextWriterWithSymbolWriter();
+ var enclosingDeclaration;
+ var currentSourceFile;
+ var reportedDeclarationError = false;
+ var errorNameNode;
+ var emitJsDocComments = compilerOptions.removeComments ? function (declaration) { } : writeJsDocComments;
+ var emit = compilerOptions.stripInternal ? stripInternal : emitNode;
+ var moduleElementDeclarationEmitInfo = [];
+ var asynchronousSubModuleDeclarationEmitInfo;
+ // Contains the reference paths that needs to go in the declaration file.
+ // Collecting this separately because reference paths need to be first thing in the declaration file
+ // and we could be collecting these paths from multiple files into single one with --out option
+ var referencePathsOutput = "";
+ if (root) {
+ // Emitting just a single file, so emit references in this file only
+ if (!compilerOptions.noResolve) {
+ var addedGlobalFileReference = false;
+ ts.forEach(root.referencedFiles, function (fileReference) {
+ var referencedFile = ts.tryResolveScriptReference(host, root, fileReference);
+ // All the references that are not going to be part of same file
+ if (referencedFile && ((referencedFile.flags & 8192 /* DeclarationFile */) ||
+ ts.shouldEmitToOwnFile(referencedFile, compilerOptions) ||
+ !addedGlobalFileReference)) {
+ writeReferencePath(referencedFile);
+ if (!ts.isExternalModuleOrDeclarationFile(referencedFile)) {
+ addedGlobalFileReference = true;
+ }
+ }
+ });
+ }
+ emitSourceFile(root);
+ // create asynchronous output for the importDeclarations
+ if (moduleElementDeclarationEmitInfo.length) {
+ var oldWriter = writer;
+ ts.forEach(moduleElementDeclarationEmitInfo, function (aliasEmitInfo) {
+ if (aliasEmitInfo.isVisible) {
+ ts.Debug.assert(aliasEmitInfo.node.kind === 222 /* ImportDeclaration */);
+ createAndSetNewTextWriterWithSymbolWriter();
+ ts.Debug.assert(aliasEmitInfo.indent === 0);
+ writeImportDeclaration(aliasEmitInfo.node);
+ aliasEmitInfo.asynchronousOutput = writer.getText();
+ }
+ });
+ setWriter(oldWriter);
+ }
+ }
+ else {
+ // Emit references corresponding to this file
+ var emittedReferencedFiles = [];
+ ts.forEach(host.getSourceFiles(), function (sourceFile) {
+ if (!ts.isExternalModuleOrDeclarationFile(sourceFile)) {
+ // Check what references need to be added
+ if (!compilerOptions.noResolve) {
+ ts.forEach(sourceFile.referencedFiles, function (fileReference) {
+ var referencedFile = ts.tryResolveScriptReference(host, sourceFile, fileReference);
+ // If the reference file is a declaration file or an external module, emit that reference
+ if (referencedFile && (ts.isExternalModuleOrDeclarationFile(referencedFile) &&
+ !ts.contains(emittedReferencedFiles, referencedFile))) {
+ writeReferencePath(referencedFile);
+ emittedReferencedFiles.push(referencedFile);
+ }
+ });
+ }
+ emitSourceFile(sourceFile);
+ }
+ });
+ }
+ return {
+ reportedDeclarationError: reportedDeclarationError,
+ moduleElementDeclarationEmitInfo: moduleElementDeclarationEmitInfo,
+ synchronousDeclarationOutput: writer.getText(),
+ referencePathsOutput: referencePathsOutput
+ };
+ function hasInternalAnnotation(range) {
+ var text = currentSourceFile.text;
+ var comment = text.substring(range.pos, range.end);
+ return comment.indexOf("@internal") >= 0;
+ }
+ function stripInternal(node) {
+ if (node) {
+ var leadingCommentRanges = ts.getLeadingCommentRanges(currentSourceFile.text, node.pos);
+ if (ts.forEach(leadingCommentRanges, hasInternalAnnotation)) {
+ return;
+ }
+ emitNode(node);
+ }
+ }
+ function createAndSetNewTextWriterWithSymbolWriter() {
+ var writer = ts.createTextWriter(newLine);
+ writer.trackSymbol = trackSymbol;
+ writer.reportInaccessibleThisError = reportInaccessibleThisError;
+ writer.writeKeyword = writer.write;
+ writer.writeOperator = writer.write;
+ writer.writePunctuation = writer.write;
+ writer.writeSpace = writer.write;
+ writer.writeStringLiteral = writer.writeLiteral;
+ writer.writeParameter = writer.write;
+ writer.writeSymbol = writer.write;
+ setWriter(writer);
+ return writer;
+ }
+ function setWriter(newWriter) {
+ writer = newWriter;
+ write = newWriter.write;
+ writeTextOfNode = newWriter.writeTextOfNode;
+ writeLine = newWriter.writeLine;
+ increaseIndent = newWriter.increaseIndent;
+ decreaseIndent = newWriter.decreaseIndent;
+ }
+ function writeAsynchronousModuleElements(nodes) {
+ var oldWriter = writer;
+ ts.forEach(nodes, function (declaration) {
+ var nodeToCheck;
+ if (declaration.kind === 211 /* VariableDeclaration */) {
+ nodeToCheck = declaration.parent.parent;
+ }
+ else if (declaration.kind === 225 /* NamedImports */ || declaration.kind === 226 /* ImportSpecifier */ || declaration.kind === 223 /* ImportClause */) {
+ ts.Debug.fail("We should be getting ImportDeclaration instead to write");
+ }
+ else {
+ nodeToCheck = declaration;
+ }
+ var moduleElementEmitInfo = ts.forEach(moduleElementDeclarationEmitInfo, function (declEmitInfo) { return declEmitInfo.node === nodeToCheck ? declEmitInfo : undefined; });
+ if (!moduleElementEmitInfo && asynchronousSubModuleDeclarationEmitInfo) {
+ moduleElementEmitInfo = ts.forEach(asynchronousSubModuleDeclarationEmitInfo, function (declEmitInfo) { return declEmitInfo.node === nodeToCheck ? declEmitInfo : undefined; });
+ }
+ // If the alias was marked as not visible when we saw its declaration, we would have saved the aliasEmitInfo, but if we haven't yet visited the alias declaration
+ // then we don't need to write it at this point. We will write it when we actually see its declaration
+ // Eg.
+ // export function bar(a: foo.Foo) { }
+ // import foo = require("foo");
+ // Writing of function bar would mark alias declaration foo as visible but we haven't yet visited that declaration so do nothing,
+ // we would write alias foo declaration when we visit it since it would now be marked as visible
+ if (moduleElementEmitInfo) {
+ if (moduleElementEmitInfo.node.kind === 222 /* ImportDeclaration */) {
+ // we have to create asynchronous output only after we have collected complete information
+ // because it is possible to enable multiple bindings as asynchronously visible
+ moduleElementEmitInfo.isVisible = true;
+ }
+ else {
+ createAndSetNewTextWriterWithSymbolWriter();
+ for (var declarationIndent = moduleElementEmitInfo.indent; declarationIndent; declarationIndent--) {
+ increaseIndent();
+ }
+ if (nodeToCheck.kind === 218 /* ModuleDeclaration */) {
+ ts.Debug.assert(asynchronousSubModuleDeclarationEmitInfo === undefined);
+ asynchronousSubModuleDeclarationEmitInfo = [];
+ }
+ writeModuleElement(nodeToCheck);
+ if (nodeToCheck.kind === 218 /* ModuleDeclaration */) {
+ moduleElementEmitInfo.subModuleElementDeclarationEmitInfo = asynchronousSubModuleDeclarationEmitInfo;
+ asynchronousSubModuleDeclarationEmitInfo = undefined;
+ }
+ moduleElementEmitInfo.asynchronousOutput = writer.getText();
+ }
+ }
+ });
+ setWriter(oldWriter);
+ }
+ function handleSymbolAccessibilityError(symbolAccesibilityResult) {
+ if (symbolAccesibilityResult.accessibility === 0 /* Accessible */) {
+ // write the aliases
+ if (symbolAccesibilityResult && symbolAccesibilityResult.aliasesToMakeVisible) {
+ writeAsynchronousModuleElements(symbolAccesibilityResult.aliasesToMakeVisible);
+ }
+ }
+ else {
+ // Report error
+ reportedDeclarationError = true;
+ var errorInfo = writer.getSymbolAccessibilityDiagnostic(symbolAccesibilityResult);
+ if (errorInfo) {
+ if (errorInfo.typeName) {
+ diagnostics.push(ts.createDiagnosticForNode(symbolAccesibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, errorInfo.typeName), symbolAccesibilityResult.errorSymbolName, symbolAccesibilityResult.errorModuleName));
+ }
+ else {
+ diagnostics.push(ts.createDiagnosticForNode(symbolAccesibilityResult.errorNode || errorInfo.errorNode, errorInfo.diagnosticMessage, symbolAccesibilityResult.errorSymbolName, symbolAccesibilityResult.errorModuleName));
+ }
+ }
+ }
+ }
+ function trackSymbol(symbol, enclosingDeclaration, meaning) {
+ handleSymbolAccessibilityError(resolver.isSymbolAccessible(symbol, enclosingDeclaration, meaning));
+ }
+ function reportInaccessibleThisError() {
+ if (errorNameNode) {
+ diagnostics.push(ts.createDiagnosticForNode(errorNameNode, ts.Diagnostics.The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary, ts.declarationNameToString(errorNameNode)));
+ }
+ }
+ function writeTypeOfDeclaration(declaration, type, getSymbolAccessibilityDiagnostic) {
+ writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
+ write(": ");
+ if (type) {
+ // Write the type
+ emitType(type);
+ }
+ else {
+ errorNameNode = declaration.name;
+ resolver.writeTypeOfDeclaration(declaration, enclosingDeclaration, 2 /* UseTypeOfFunction */, writer);
+ errorNameNode = undefined;
+ }
+ }
+ function writeReturnTypeAtSignature(signature, getSymbolAccessibilityDiagnostic) {
+ writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
+ write(": ");
+ if (signature.type) {
+ // Write the type
+ emitType(signature.type);
+ }
+ else {
+ errorNameNode = signature.name;
+ resolver.writeReturnTypeOfSignatureDeclaration(signature, enclosingDeclaration, 2 /* UseTypeOfFunction */, writer);
+ errorNameNode = undefined;
+ }
+ }
+ function emitLines(nodes) {
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var node = nodes[_i];
+ emit(node);
+ }
+ }
+ function emitSeparatedList(nodes, separator, eachNodeEmitFn, canEmitFn) {
+ var currentWriterPos = writer.getTextPos();
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var node = nodes[_i];
+ if (!canEmitFn || canEmitFn(node)) {
+ if (currentWriterPos !== writer.getTextPos()) {
+ write(separator);
+ }
+ currentWriterPos = writer.getTextPos();
+ eachNodeEmitFn(node);
+ }
+ }
+ }
+ function emitCommaList(nodes, eachNodeEmitFn, canEmitFn) {
+ emitSeparatedList(nodes, ", ", eachNodeEmitFn, canEmitFn);
+ }
+ function writeJsDocComments(declaration) {
+ if (declaration) {
+ var jsDocComments = ts.getJsDocComments(declaration, currentSourceFile);
+ ts.emitNewLineBeforeLeadingComments(currentSourceFile, writer, declaration, jsDocComments);
+ // jsDoc comments are emitted at /*leading comment1 */space/*leading comment*/space
+ ts.emitComments(currentSourceFile, writer, jsDocComments, /*trailingSeparator*/ true, newLine, ts.writeCommentRange);
+ }
+ }
+ function emitTypeWithNewGetSymbolAccessibilityDiagnostic(type, getSymbolAccessibilityDiagnostic) {
+ writer.getSymbolAccessibilityDiagnostic = getSymbolAccessibilityDiagnostic;
+ emitType(type);
+ }
+ function emitType(type) {
+ switch (type.kind) {
+ case 117 /* AnyKeyword */:
+ case 130 /* StringKeyword */:
+ case 128 /* NumberKeyword */:
+ case 120 /* BooleanKeyword */:
+ case 131 /* SymbolKeyword */:
+ case 103 /* VoidKeyword */:
+ case 97 /* ThisKeyword */:
+ case 9 /* StringLiteral */:
+ return writeTextOfNode(currentSourceFile, type);
+ case 188 /* ExpressionWithTypeArguments */:
+ return emitExpressionWithTypeArguments(type);
+ case 151 /* TypeReference */:
+ return emitTypeReference(type);
+ case 154 /* TypeQuery */:
+ return emitTypeQuery(type);
+ case 156 /* ArrayType */:
+ return emitArrayType(type);
+ case 157 /* TupleType */:
+ return emitTupleType(type);
+ case 158 /* UnionType */:
+ return emitUnionType(type);
+ case 159 /* IntersectionType */:
+ return emitIntersectionType(type);
+ case 160 /* ParenthesizedType */:
+ return emitParenType(type);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ return emitSignatureDeclarationWithJsDocComments(type);
+ case 155 /* TypeLiteral */:
+ return emitTypeLiteral(type);
+ case 69 /* Identifier */:
+ return emitEntityName(type);
+ case 135 /* QualifiedName */:
+ return emitEntityName(type);
+ case 150 /* TypePredicate */:
+ return emitTypePredicate(type);
+ }
+ function writeEntityName(entityName) {
+ if (entityName.kind === 69 /* Identifier */) {
+ writeTextOfNode(currentSourceFile, entityName);
+ }
+ else {
+ var left = entityName.kind === 135 /* QualifiedName */ ? entityName.left : entityName.expression;
+ var right = entityName.kind === 135 /* QualifiedName */ ? entityName.right : entityName.name;
+ writeEntityName(left);
+ write(".");
+ writeTextOfNode(currentSourceFile, right);
+ }
+ }
+ function emitEntityName(entityName) {
+ var visibilityResult = resolver.isEntityNameVisible(entityName,
+ // Aliases can be written asynchronously so use correct enclosing declaration
+ entityName.parent.kind === 221 /* ImportEqualsDeclaration */ ? entityName.parent : enclosingDeclaration);
+ handleSymbolAccessibilityError(visibilityResult);
+ writeEntityName(entityName);
+ }
+ function emitExpressionWithTypeArguments(node) {
+ if (ts.isSupportedExpressionWithTypeArguments(node)) {
+ ts.Debug.assert(node.expression.kind === 69 /* Identifier */ || node.expression.kind === 166 /* PropertyAccessExpression */);
+ emitEntityName(node.expression);
+ if (node.typeArguments) {
+ write("<");
+ emitCommaList(node.typeArguments, emitType);
+ write(">");
+ }
+ }
+ }
+ function emitTypeReference(type) {
+ emitEntityName(type.typeName);
+ if (type.typeArguments) {
+ write("<");
+ emitCommaList(type.typeArguments, emitType);
+ write(">");
+ }
+ }
+ function emitTypePredicate(type) {
+ writeTextOfNode(currentSourceFile, type.parameterName);
+ write(" is ");
+ emitType(type.type);
+ }
+ function emitTypeQuery(type) {
+ write("typeof ");
+ emitEntityName(type.exprName);
+ }
+ function emitArrayType(type) {
+ emitType(type.elementType);
+ write("[]");
+ }
+ function emitTupleType(type) {
+ write("[");
+ emitCommaList(type.elementTypes, emitType);
+ write("]");
+ }
+ function emitUnionType(type) {
+ emitSeparatedList(type.types, " | ", emitType);
+ }
+ function emitIntersectionType(type) {
+ emitSeparatedList(type.types, " & ", emitType);
+ }
+ function emitParenType(type) {
+ write("(");
+ emitType(type.type);
+ write(")");
+ }
+ function emitTypeLiteral(type) {
+ write("{");
+ if (type.members.length) {
+ writeLine();
+ increaseIndent();
+ // write members
+ emitLines(type.members);
+ decreaseIndent();
+ }
+ write("}");
+ }
+ }
+ function emitSourceFile(node) {
+ currentSourceFile = node;
+ enclosingDeclaration = node;
+ emitLines(node.statements);
+ }
+ // Return a temp variable name to be used in `export default` statements.
+ // The temp name will be of the form _default_counter.
+ // Note that export default is only allowed at most once in a module, so we
+ // do not need to keep track of created temp names.
+ function getExportDefaultTempVariableName() {
+ var baseName = "_default";
+ if (!ts.hasProperty(currentSourceFile.identifiers, baseName)) {
+ return baseName;
+ }
+ var count = 0;
+ while (true) {
+ var name_18 = baseName + "_" + (++count);
+ if (!ts.hasProperty(currentSourceFile.identifiers, name_18)) {
+ return name_18;
+ }
+ }
+ }
+ function emitExportAssignment(node) {
+ if (node.expression.kind === 69 /* Identifier */) {
+ write(node.isExportEquals ? "export = " : "export default ");
+ writeTextOfNode(currentSourceFile, node.expression);
+ }
+ else {
+ // Expression
+ var tempVarName = getExportDefaultTempVariableName();
+ write("declare var ");
+ write(tempVarName);
+ write(": ");
+ writer.getSymbolAccessibilityDiagnostic = getDefaultExportAccessibilityDiagnostic;
+ resolver.writeTypeOfExpression(node.expression, enclosingDeclaration, 2 /* UseTypeOfFunction */, writer);
+ write(";");
+ writeLine();
+ write(node.isExportEquals ? "export = " : "export default ");
+ write(tempVarName);
+ }
+ write(";");
+ writeLine();
+ // Make all the declarations visible for the export name
+ if (node.expression.kind === 69 /* Identifier */) {
+ var nodes = resolver.collectLinkedAliases(node.expression);
+ // write each of these declarations asynchronously
+ writeAsynchronousModuleElements(nodes);
+ }
+ function getDefaultExportAccessibilityDiagnostic(diagnostic) {
+ return {
+ diagnosticMessage: ts.Diagnostics.Default_export_of_the_module_has_or_is_using_private_name_0,
+ errorNode: node
+ };
+ }
+ }
+ function isModuleElementVisible(node) {
+ return resolver.isDeclarationVisible(node);
+ }
+ function emitModuleElement(node, isModuleElementVisible) {
+ if (isModuleElementVisible) {
+ writeModuleElement(node);
+ }
+ else if (node.kind === 221 /* ImportEqualsDeclaration */ ||
+ (node.parent.kind === 248 /* SourceFile */ && ts.isExternalModule(currentSourceFile))) {
+ var isVisible;
+ if (asynchronousSubModuleDeclarationEmitInfo && node.parent.kind !== 248 /* SourceFile */) {
+ // Import declaration of another module that is visited async so lets put it in right spot
+ asynchronousSubModuleDeclarationEmitInfo.push({
+ node: node,
+ outputPos: writer.getTextPos(),
+ indent: writer.getIndent(),
+ isVisible: isVisible
+ });
+ }
+ else {
+ if (node.kind === 222 /* ImportDeclaration */) {
+ var importDeclaration = node;
+ if (importDeclaration.importClause) {
+ isVisible = (importDeclaration.importClause.name && resolver.isDeclarationVisible(importDeclaration.importClause)) ||
+ isVisibleNamedBinding(importDeclaration.importClause.namedBindings);
+ }
+ }
+ moduleElementDeclarationEmitInfo.push({
+ node: node,
+ outputPos: writer.getTextPos(),
+ indent: writer.getIndent(),
+ isVisible: isVisible
+ });
+ }
+ }
+ }
+ function writeModuleElement(node) {
+ switch (node.kind) {
+ case 213 /* FunctionDeclaration */:
+ return writeFunctionDeclaration(node);
+ case 193 /* VariableStatement */:
+ return writeVariableStatement(node);
+ case 215 /* InterfaceDeclaration */:
+ return writeInterfaceDeclaration(node);
+ case 214 /* ClassDeclaration */:
+ return writeClassDeclaration(node);
+ case 216 /* TypeAliasDeclaration */:
+ return writeTypeAliasDeclaration(node);
+ case 217 /* EnumDeclaration */:
+ return writeEnumDeclaration(node);
+ case 218 /* ModuleDeclaration */:
+ return writeModuleDeclaration(node);
+ case 221 /* ImportEqualsDeclaration */:
+ return writeImportEqualsDeclaration(node);
+ case 222 /* ImportDeclaration */:
+ return writeImportDeclaration(node);
+ default:
+ ts.Debug.fail("Unknown symbol kind");
+ }
+ }
+ function emitModuleElementDeclarationFlags(node) {
+ // If the node is parented in the current source file we need to emit export declare or just export
+ if (node.parent === currentSourceFile) {
+ // If the node is exported
+ if (node.flags & 1 /* Export */) {
+ write("export ");
+ }
+ if (node.flags & 1024 /* Default */) {
+ write("default ");
+ }
+ else if (node.kind !== 215 /* InterfaceDeclaration */) {
+ write("declare ");
+ }
+ }
+ }
+ function emitClassMemberDeclarationFlags(node) {
+ if (node.flags & 32 /* Private */) {
+ write("private ");
+ }
+ else if (node.flags & 64 /* Protected */) {
+ write("protected ");
+ }
+ if (node.flags & 128 /* Static */) {
+ write("static ");
+ }
+ if (node.flags & 256 /* Abstract */) {
+ write("abstract ");
+ }
+ }
+ function writeImportEqualsDeclaration(node) {
+ // note usage of writer. methods instead of aliases created, just to make sure we are using
+ // correct writer especially to handle asynchronous alias writing
+ emitJsDocComments(node);
+ if (node.flags & 1 /* Export */) {
+ write("export ");
+ }
+ write("import ");
+ writeTextOfNode(currentSourceFile, node.name);
+ write(" = ");
+ if (ts.isInternalModuleImportEqualsDeclaration(node)) {
+ emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.moduleReference, getImportEntityNameVisibilityError);
+ write(";");
+ }
+ else {
+ write("require(");
+ writeTextOfNode(currentSourceFile, ts.getExternalModuleImportEqualsDeclarationExpression(node));
+ write(");");
+ }
+ writer.writeLine();
+ function getImportEntityNameVisibilityError(symbolAccesibilityResult) {
+ return {
+ diagnosticMessage: ts.Diagnostics.Import_declaration_0_is_using_private_name_1,
+ errorNode: node,
+ typeName: node.name
+ };
+ }
+ }
+ function isVisibleNamedBinding(namedBindings) {
+ if (namedBindings) {
+ if (namedBindings.kind === 224 /* NamespaceImport */) {
+ return resolver.isDeclarationVisible(namedBindings);
+ }
+ else {
+ return ts.forEach(namedBindings.elements, function (namedImport) { return resolver.isDeclarationVisible(namedImport); });
+ }
+ }
+ }
+ function writeImportDeclaration(node) {
+ if (!node.importClause && !(node.flags & 1 /* Export */)) {
+ // do not write non-exported import declarations that don't have import clauses
+ return;
+ }
+ emitJsDocComments(node);
+ if (node.flags & 1 /* Export */) {
+ write("export ");
+ }
+ write("import ");
+ if (node.importClause) {
+ var currentWriterPos = writer.getTextPos();
+ if (node.importClause.name && resolver.isDeclarationVisible(node.importClause)) {
+ writeTextOfNode(currentSourceFile, node.importClause.name);
+ }
+ if (node.importClause.namedBindings && isVisibleNamedBinding(node.importClause.namedBindings)) {
+ if (currentWriterPos !== writer.getTextPos()) {
+ // If the default binding was emitted, write the separated
+ write(", ");
+ }
+ if (node.importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ write("* as ");
+ writeTextOfNode(currentSourceFile, node.importClause.namedBindings.name);
+ }
+ else {
+ write("{ ");
+ emitCommaList(node.importClause.namedBindings.elements, emitImportOrExportSpecifier, resolver.isDeclarationVisible);
+ write(" }");
+ }
+ }
+ write(" from ");
+ }
+ writeTextOfNode(currentSourceFile, node.moduleSpecifier);
+ write(";");
+ writer.writeLine();
+ }
+ function emitImportOrExportSpecifier(node) {
+ if (node.propertyName) {
+ writeTextOfNode(currentSourceFile, node.propertyName);
+ write(" as ");
+ }
+ writeTextOfNode(currentSourceFile, node.name);
+ }
+ function emitExportSpecifier(node) {
+ emitImportOrExportSpecifier(node);
+ // Make all the declarations visible for the export name
+ var nodes = resolver.collectLinkedAliases(node.propertyName || node.name);
+ // write each of these declarations asynchronously
+ writeAsynchronousModuleElements(nodes);
+ }
+ function emitExportDeclaration(node) {
+ emitJsDocComments(node);
+ write("export ");
+ if (node.exportClause) {
+ write("{ ");
+ emitCommaList(node.exportClause.elements, emitExportSpecifier);
+ write(" }");
+ }
+ else {
+ write("*");
+ }
+ if (node.moduleSpecifier) {
+ write(" from ");
+ writeTextOfNode(currentSourceFile, node.moduleSpecifier);
+ }
+ write(";");
+ writer.writeLine();
+ }
+ function writeModuleDeclaration(node) {
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ if (node.flags & 131072 /* Namespace */) {
+ write("namespace ");
+ }
+ else {
+ write("module ");
+ }
+ writeTextOfNode(currentSourceFile, node.name);
+ while (node.body.kind !== 219 /* ModuleBlock */) {
+ node = node.body;
+ write(".");
+ writeTextOfNode(currentSourceFile, node.name);
+ }
+ var prevEnclosingDeclaration = enclosingDeclaration;
+ enclosingDeclaration = node;
+ write(" {");
+ writeLine();
+ increaseIndent();
+ emitLines(node.body.statements);
+ decreaseIndent();
+ write("}");
+ writeLine();
+ enclosingDeclaration = prevEnclosingDeclaration;
+ }
+ function writeTypeAliasDeclaration(node) {
+ var prevEnclosingDeclaration = enclosingDeclaration;
+ enclosingDeclaration = node;
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ write("type ");
+ writeTextOfNode(currentSourceFile, node.name);
+ emitTypeParameters(node.typeParameters);
+ write(" = ");
+ emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.type, getTypeAliasDeclarationVisibilityError);
+ write(";");
+ writeLine();
+ enclosingDeclaration = prevEnclosingDeclaration;
+ function getTypeAliasDeclarationVisibilityError(symbolAccesibilityResult) {
+ return {
+ diagnosticMessage: ts.Diagnostics.Exported_type_alias_0_has_or_is_using_private_name_1,
+ errorNode: node.type,
+ typeName: node.name
+ };
+ }
+ }
+ function writeEnumDeclaration(node) {
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ if (ts.isConst(node)) {
+ write("const ");
+ }
+ write("enum ");
+ writeTextOfNode(currentSourceFile, node.name);
+ write(" {");
+ writeLine();
+ increaseIndent();
+ emitLines(node.members);
+ decreaseIndent();
+ write("}");
+ writeLine();
+ }
+ function emitEnumMemberDeclaration(node) {
+ emitJsDocComments(node);
+ writeTextOfNode(currentSourceFile, node.name);
+ var enumMemberValue = resolver.getConstantValue(node);
+ if (enumMemberValue !== undefined) {
+ write(" = ");
+ write(enumMemberValue.toString());
+ }
+ write(",");
+ writeLine();
+ }
+ function isPrivateMethodTypeParameter(node) {
+ return node.parent.kind === 143 /* MethodDeclaration */ && (node.parent.flags & 32 /* Private */);
+ }
+ function emitTypeParameters(typeParameters) {
+ function emitTypeParameter(node) {
+ increaseIndent();
+ emitJsDocComments(node);
+ decreaseIndent();
+ writeTextOfNode(currentSourceFile, node.name);
+ // If there is constraint present and this is not a type parameter of the private method emit the constraint
+ if (node.constraint && !isPrivateMethodTypeParameter(node)) {
+ write(" extends ");
+ if (node.parent.kind === 152 /* FunctionType */ ||
+ node.parent.kind === 153 /* ConstructorType */ ||
+ (node.parent.parent && node.parent.parent.kind === 155 /* TypeLiteral */)) {
+ ts.Debug.assert(node.parent.kind === 143 /* MethodDeclaration */ ||
+ node.parent.kind === 142 /* MethodSignature */ ||
+ node.parent.kind === 152 /* FunctionType */ ||
+ node.parent.kind === 153 /* ConstructorType */ ||
+ node.parent.kind === 147 /* CallSignature */ ||
+ node.parent.kind === 148 /* ConstructSignature */);
+ emitType(node.constraint);
+ }
+ else {
+ emitTypeWithNewGetSymbolAccessibilityDiagnostic(node.constraint, getTypeParameterConstraintVisibilityError);
+ }
+ }
+ function getTypeParameterConstraintVisibilityError(symbolAccesibilityResult) {
+ // Type parameter constraints are named by user so we should always be able to name it
+ var diagnosticMessage;
+ switch (node.parent.kind) {
+ case 214 /* ClassDeclaration */:
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_class_has_or_is_using_private_name_1;
+ break;
+ case 215 /* InterfaceDeclaration */:
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1;
+ break;
+ case 148 /* ConstructSignature */:
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
+ break;
+ case 147 /* CallSignature */:
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
+ break;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (node.parent.flags & 128 /* Static */) {
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
+ }
+ else if (node.parent.parent.kind === 214 /* ClassDeclaration */) {
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
+ }
+ else {
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
+ }
+ break;
+ case 213 /* FunctionDeclaration */:
+ diagnosticMessage = ts.Diagnostics.Type_parameter_0_of_exported_function_has_or_is_using_private_name_1;
+ break;
+ default:
+ ts.Debug.fail("This is unknown parent for type parameter: " + node.parent.kind);
+ }
+ return {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: node,
+ typeName: node.name
+ };
+ }
+ }
+ if (typeParameters) {
+ write("<");
+ emitCommaList(typeParameters, emitTypeParameter);
+ write(">");
+ }
+ }
+ function emitHeritageClause(typeReferences, isImplementsList) {
+ if (typeReferences) {
+ write(isImplementsList ? " implements " : " extends ");
+ emitCommaList(typeReferences, emitTypeOfTypeReference);
+ }
+ function emitTypeOfTypeReference(node) {
+ if (ts.isSupportedExpressionWithTypeArguments(node)) {
+ emitTypeWithNewGetSymbolAccessibilityDiagnostic(node, getHeritageClauseVisibilityError);
+ }
+ else if (!isImplementsList && node.expression.kind === 93 /* NullKeyword */) {
+ write("null");
+ }
+ function getHeritageClauseVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage;
+ // Heritage clause is written by user so it can always be named
+ if (node.parent.parent.kind === 214 /* ClassDeclaration */) {
+ // Class or Interface implemented/extended is inaccessible
+ diagnosticMessage = isImplementsList ?
+ ts.Diagnostics.Implements_clause_of_exported_class_0_has_or_is_using_private_name_1 :
+ ts.Diagnostics.Extends_clause_of_exported_class_0_has_or_is_using_private_name_1;
+ }
+ else {
+ // interface is inaccessible
+ diagnosticMessage = ts.Diagnostics.Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1;
+ }
+ return {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: node,
+ typeName: node.parent.parent.name
+ };
+ }
+ }
+ }
+ function writeClassDeclaration(node) {
+ function emitParameterProperties(constructorDeclaration) {
+ if (constructorDeclaration) {
+ ts.forEach(constructorDeclaration.parameters, function (param) {
+ if (param.flags & 112 /* AccessibilityModifier */) {
+ emitPropertyDeclaration(param);
+ }
+ });
+ }
+ }
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ if (node.flags & 256 /* Abstract */) {
+ write("abstract ");
+ }
+ write("class ");
+ writeTextOfNode(currentSourceFile, node.name);
+ var prevEnclosingDeclaration = enclosingDeclaration;
+ enclosingDeclaration = node;
+ emitTypeParameters(node.typeParameters);
+ var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
+ if (baseTypeNode) {
+ emitHeritageClause([baseTypeNode], /*isImplementsList*/ false);
+ }
+ emitHeritageClause(ts.getClassImplementsHeritageClauseElements(node), /*isImplementsList*/ true);
+ write(" {");
+ writeLine();
+ increaseIndent();
+ emitParameterProperties(ts.getFirstConstructorWithBody(node));
+ emitLines(node.members);
+ decreaseIndent();
+ write("}");
+ writeLine();
+ enclosingDeclaration = prevEnclosingDeclaration;
+ }
+ function writeInterfaceDeclaration(node) {
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ write("interface ");
+ writeTextOfNode(currentSourceFile, node.name);
+ var prevEnclosingDeclaration = enclosingDeclaration;
+ enclosingDeclaration = node;
+ emitTypeParameters(node.typeParameters);
+ emitHeritageClause(ts.getInterfaceBaseTypeNodes(node), /*isImplementsList*/ false);
+ write(" {");
+ writeLine();
+ increaseIndent();
+ emitLines(node.members);
+ decreaseIndent();
+ write("}");
+ writeLine();
+ enclosingDeclaration = prevEnclosingDeclaration;
+ }
+ function emitPropertyDeclaration(node) {
+ if (ts.hasDynamicName(node)) {
+ return;
+ }
+ emitJsDocComments(node);
+ emitClassMemberDeclarationFlags(node);
+ emitVariableDeclaration(node);
+ write(";");
+ writeLine();
+ }
+ function emitVariableDeclaration(node) {
+ // If we are emitting property it isn't moduleElement and hence we already know it needs to be emitted
+ // so there is no check needed to see if declaration is visible
+ if (node.kind !== 211 /* VariableDeclaration */ || resolver.isDeclarationVisible(node)) {
+ if (ts.isBindingPattern(node.name)) {
+ emitBindingPattern(node.name);
+ }
+ else {
+ // If this node is a computed name, it can only be a symbol, because we've already skipped
+ // it if it's not a well known symbol. In that case, the text of the name will be exactly
+ // what we want, namely the name expression enclosed in brackets.
+ writeTextOfNode(currentSourceFile, node.name);
+ // If optional property emit ?
+ if ((node.kind === 141 /* PropertyDeclaration */ || node.kind === 140 /* PropertySignature */) && ts.hasQuestionToken(node)) {
+ write("?");
+ }
+ if ((node.kind === 141 /* PropertyDeclaration */ || node.kind === 140 /* PropertySignature */) && node.parent.kind === 155 /* TypeLiteral */) {
+ emitTypeOfVariableDeclarationFromTypeLiteral(node);
+ }
+ else if (!(node.flags & 32 /* Private */)) {
+ writeTypeOfDeclaration(node, node.type, getVariableDeclarationTypeVisibilityError);
+ }
+ }
+ }
+ function getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult) {
+ if (node.kind === 211 /* VariableDeclaration */) {
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Exported_variable_0_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Exported_variable_0_has_or_is_using_private_name_1;
+ }
+ else if (node.kind === 141 /* PropertyDeclaration */ || node.kind === 140 /* PropertySignature */) {
+ // TODO(jfreeman): Deal with computed properties in error reporting.
+ if (node.flags & 128 /* Static */) {
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Public_static_property_0_of_exported_class_has_or_is_using_private_name_1;
+ }
+ else if (node.parent.kind === 214 /* ClassDeclaration */) {
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Public_property_0_of_exported_class_has_or_is_using_private_name_1;
+ }
+ else {
+ // Interfaces cannot have types that cannot be named
+ return symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Property_0_of_exported_interface_has_or_is_using_private_name_1;
+ }
+ }
+ }
+ function getVariableDeclarationTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage = getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult);
+ return diagnosticMessage !== undefined ? {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: node,
+ typeName: node.name
+ } : undefined;
+ }
+ function emitBindingPattern(bindingPattern) {
+ // Only select non-omitted expression from the bindingPattern's elements.
+ // We have to do this to avoid emitting trailing commas.
+ // For example:
+ // original: var [, c,,] = [ 2,3,4]
+ // emitted: declare var c: number; // instead of declare var c:number, ;
+ var elements = [];
+ for (var _i = 0, _a = bindingPattern.elements; _i < _a.length; _i++) {
+ var element = _a[_i];
+ if (element.kind !== 187 /* OmittedExpression */) {
+ elements.push(element);
+ }
+ }
+ emitCommaList(elements, emitBindingElement);
+ }
+ function emitBindingElement(bindingElement) {
+ function getBindingElementTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage = getVariableDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult);
+ return diagnosticMessage !== undefined ? {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: bindingElement,
+ typeName: bindingElement.name
+ } : undefined;
+ }
+ if (bindingElement.name) {
+ if (ts.isBindingPattern(bindingElement.name)) {
+ emitBindingPattern(bindingElement.name);
+ }
+ else {
+ writeTextOfNode(currentSourceFile, bindingElement.name);
+ writeTypeOfDeclaration(bindingElement, /*type*/ undefined, getBindingElementTypeVisibilityError);
+ }
+ }
+ }
+ }
+ function emitTypeOfVariableDeclarationFromTypeLiteral(node) {
+ // if this is property of type literal,
+ // or is parameter of method/call/construct/index signature of type literal
+ // emit only if type is specified
+ if (node.type) {
+ write(": ");
+ emitType(node.type);
+ }
+ }
+ function isVariableStatementVisible(node) {
+ return ts.forEach(node.declarationList.declarations, function (varDeclaration) { return resolver.isDeclarationVisible(varDeclaration); });
+ }
+ function writeVariableStatement(node) {
+ emitJsDocComments(node);
+ emitModuleElementDeclarationFlags(node);
+ if (ts.isLet(node.declarationList)) {
+ write("let ");
+ }
+ else if (ts.isConst(node.declarationList)) {
+ write("const ");
+ }
+ else {
+ write("var ");
+ }
+ emitCommaList(node.declarationList.declarations, emitVariableDeclaration, resolver.isDeclarationVisible);
+ write(";");
+ writeLine();
+ }
+ function emitAccessorDeclaration(node) {
+ if (ts.hasDynamicName(node)) {
+ return;
+ }
+ var accessors = ts.getAllAccessorDeclarations(node.parent.members, node);
+ var accessorWithTypeAnnotation;
+ if (node === accessors.firstAccessor) {
+ emitJsDocComments(accessors.getAccessor);
+ emitJsDocComments(accessors.setAccessor);
+ emitClassMemberDeclarationFlags(node);
+ writeTextOfNode(currentSourceFile, node.name);
+ if (!(node.flags & 32 /* Private */)) {
+ accessorWithTypeAnnotation = node;
+ var type = getTypeAnnotationFromAccessor(node);
+ if (!type) {
+ // couldn't get type for the first accessor, try the another one
+ var anotherAccessor = node.kind === 145 /* GetAccessor */ ? accessors.setAccessor : accessors.getAccessor;
+ type = getTypeAnnotationFromAccessor(anotherAccessor);
+ if (type) {
+ accessorWithTypeAnnotation = anotherAccessor;
+ }
+ }
+ writeTypeOfDeclaration(node, type, getAccessorDeclarationTypeVisibilityError);
+ }
+ write(";");
+ writeLine();
+ }
+ function getTypeAnnotationFromAccessor(accessor) {
+ if (accessor) {
+ return accessor.kind === 145 /* GetAccessor */
+ ? accessor.type // Getter - return type
+ : accessor.parameters.length > 0
+ ? accessor.parameters[0].type // Setter parameter type
+ : undefined;
+ }
+ }
+ function getAccessorDeclarationTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage;
+ if (accessorWithTypeAnnotation.kind === 146 /* SetAccessor */) {
+ // Setters have to have type named and cannot infer it so, the type should always be named
+ if (accessorWithTypeAnnotation.parent.flags & 128 /* Static */) {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1;
+ }
+ else {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1;
+ }
+ return {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: accessorWithTypeAnnotation.parameters[0],
+ // TODO(jfreeman): Investigate why we are passing node.name instead of node.parameters[0].name
+ typeName: accessorWithTypeAnnotation.name
+ };
+ }
+ else {
+ if (accessorWithTypeAnnotation.flags & 128 /* Static */) {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+ ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0;
+ }
+ else {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+ ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0;
+ }
+ return {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: accessorWithTypeAnnotation.name,
+ typeName: undefined
+ };
+ }
+ }
+ }
+ function writeFunctionDeclaration(node) {
+ if (ts.hasDynamicName(node)) {
+ return;
+ }
+ // If we are emitting Method/Constructor it isn't moduleElement and hence already determined to be emitting
+ // so no need to verify if the declaration is visible
+ if (!resolver.isImplementationOfOverload(node)) {
+ emitJsDocComments(node);
+ if (node.kind === 213 /* FunctionDeclaration */) {
+ emitModuleElementDeclarationFlags(node);
+ }
+ else if (node.kind === 143 /* MethodDeclaration */) {
+ emitClassMemberDeclarationFlags(node);
+ }
+ if (node.kind === 213 /* FunctionDeclaration */) {
+ write("function ");
+ writeTextOfNode(currentSourceFile, node.name);
+ }
+ else if (node.kind === 144 /* Constructor */) {
+ write("constructor");
+ }
+ else {
+ writeTextOfNode(currentSourceFile, node.name);
+ if (ts.hasQuestionToken(node)) {
+ write("?");
+ }
+ }
+ emitSignatureDeclaration(node);
+ }
+ }
+ function emitSignatureDeclarationWithJsDocComments(node) {
+ emitJsDocComments(node);
+ emitSignatureDeclaration(node);
+ }
+ function emitSignatureDeclaration(node) {
+ // Construct signature or constructor type write new Signature
+ if (node.kind === 148 /* ConstructSignature */ || node.kind === 153 /* ConstructorType */) {
+ write("new ");
+ }
+ emitTypeParameters(node.typeParameters);
+ if (node.kind === 149 /* IndexSignature */) {
+ write("[");
+ }
+ else {
+ write("(");
+ }
+ var prevEnclosingDeclaration = enclosingDeclaration;
+ enclosingDeclaration = node;
+ // Parameters
+ emitCommaList(node.parameters, emitParameterDeclaration);
+ if (node.kind === 149 /* IndexSignature */) {
+ write("]");
+ }
+ else {
+ write(")");
+ }
+ // If this is not a constructor and is not private, emit the return type
+ var isFunctionTypeOrConstructorType = node.kind === 152 /* FunctionType */ || node.kind === 153 /* ConstructorType */;
+ if (isFunctionTypeOrConstructorType || node.parent.kind === 155 /* TypeLiteral */) {
+ // Emit type literal signature return type only if specified
+ if (node.type) {
+ write(isFunctionTypeOrConstructorType ? " => " : ": ");
+ emitType(node.type);
+ }
+ }
+ else if (node.kind !== 144 /* Constructor */ && !(node.flags & 32 /* Private */)) {
+ writeReturnTypeAtSignature(node, getReturnTypeVisibilityError);
+ }
+ enclosingDeclaration = prevEnclosingDeclaration;
+ if (!isFunctionTypeOrConstructorType) {
+ write(";");
+ writeLine();
+ }
+ function getReturnTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage;
+ switch (node.kind) {
+ case 148 /* ConstructSignature */:
+ // Interfaces cannot have return types that cannot be named
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0;
+ break;
+ case 147 /* CallSignature */:
+ // Interfaces cannot have return types that cannot be named
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0;
+ break;
+ case 149 /* IndexSignature */:
+ // Interfaces cannot have return types that cannot be named
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0;
+ break;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (node.flags & 128 /* Static */) {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+ ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0;
+ }
+ else if (node.parent.kind === 214 /* ClassDeclaration */) {
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+ ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0;
+ }
+ else {
+ // Interfaces cannot have return types that cannot be named
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0;
+ }
+ break;
+ case 213 /* FunctionDeclaration */:
+ diagnosticMessage = symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named :
+ ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1 :
+ ts.Diagnostics.Return_type_of_exported_function_has_or_is_using_private_name_0;
+ break;
+ default:
+ ts.Debug.fail("This is unknown kind for signature: " + node.kind);
+ }
+ return {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: node.name || node
+ };
+ }
+ }
+ function emitParameterDeclaration(node) {
+ increaseIndent();
+ emitJsDocComments(node);
+ if (node.dotDotDotToken) {
+ write("...");
+ }
+ if (ts.isBindingPattern(node.name)) {
+ // For bindingPattern, we can't simply writeTextOfNode from the source file
+ // because we want to omit the initializer and using writeTextOfNode will result in initializer get emitted.
+ // Therefore, we will have to recursively emit each element in the bindingPattern.
+ emitBindingPattern(node.name);
+ }
+ else {
+ writeTextOfNode(currentSourceFile, node.name);
+ }
+ if (resolver.isOptionalParameter(node)) {
+ write("?");
+ }
+ decreaseIndent();
+ if (node.parent.kind === 152 /* FunctionType */ ||
+ node.parent.kind === 153 /* ConstructorType */ ||
+ node.parent.parent.kind === 155 /* TypeLiteral */) {
+ emitTypeOfVariableDeclarationFromTypeLiteral(node);
+ }
+ else if (!(node.parent.flags & 32 /* Private */)) {
+ writeTypeOfDeclaration(node, node.type, getParameterDeclarationTypeVisibilityError);
+ }
+ function getParameterDeclarationTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage = getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult);
+ return diagnosticMessage !== undefined ? {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: node,
+ typeName: node.name
+ } : undefined;
+ }
+ function getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult) {
+ switch (node.parent.kind) {
+ case 144 /* Constructor */:
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1;
+ case 148 /* ConstructSignature */:
+ // Interfaces cannot have parameter types that cannot be named
+ return symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1;
+ case 147 /* CallSignature */:
+ // Interfaces cannot have parameter types that cannot be named
+ return symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (node.parent.flags & 128 /* Static */) {
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1;
+ }
+ else if (node.parent.parent.kind === 214 /* ClassDeclaration */) {
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1;
+ }
+ else {
+ // Interfaces cannot have parameter types that cannot be named
+ return symbolAccesibilityResult.errorModuleName ?
+ ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1;
+ }
+ case 213 /* FunctionDeclaration */:
+ return symbolAccesibilityResult.errorModuleName ?
+ symbolAccesibilityResult.accessibility === 2 /* CannotBeNamed */ ?
+ ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named :
+ ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2 :
+ ts.Diagnostics.Parameter_0_of_exported_function_has_or_is_using_private_name_1;
+ default:
+ ts.Debug.fail("This is unknown parent for parameter: " + node.parent.kind);
+ }
+ }
+ function emitBindingPattern(bindingPattern) {
+ // We have to explicitly emit square bracket and bracket because these tokens are not store inside the node.
+ if (bindingPattern.kind === 161 /* ObjectBindingPattern */) {
+ write("{");
+ emitCommaList(bindingPattern.elements, emitBindingElement);
+ write("}");
+ }
+ else if (bindingPattern.kind === 162 /* ArrayBindingPattern */) {
+ write("[");
+ var elements = bindingPattern.elements;
+ emitCommaList(elements, emitBindingElement);
+ if (elements && elements.hasTrailingComma) {
+ write(", ");
+ }
+ write("]");
+ }
+ }
+ function emitBindingElement(bindingElement) {
+ function getBindingElementTypeVisibilityError(symbolAccesibilityResult) {
+ var diagnosticMessage = getParameterDeclarationTypeVisibilityDiagnosticMessage(symbolAccesibilityResult);
+ return diagnosticMessage !== undefined ? {
+ diagnosticMessage: diagnosticMessage,
+ errorNode: bindingElement,
+ typeName: bindingElement.name
+ } : undefined;
+ }
+ if (bindingElement.kind === 187 /* OmittedExpression */) {
+ // If bindingElement is an omittedExpression (i.e. containing elision),
+ // we will emit blank space (although this may differ from users' original code,
+ // it allows emitSeparatedList to write separator appropriately)
+ // Example:
+ // original: function foo([, x, ,]) {}
+ // emit : function foo([ , x, , ]) {}
+ write(" ");
+ }
+ else if (bindingElement.kind === 163 /* BindingElement */) {
+ if (bindingElement.propertyName) {
+ // bindingElement has propertyName property in the following case:
+ // { y: [a,b,c] ...} -> bindingPattern will have a property called propertyName for "y"
+ // We have to explicitly emit the propertyName before descending into its binding elements.
+ // Example:
+ // original: function foo({y: [a,b,c]}) {}
+ // emit : declare function foo({y: [a, b, c]}: { y: [any, any, any] }) void;
+ writeTextOfNode(currentSourceFile, bindingElement.propertyName);
+ write(": ");
+ }
+ if (bindingElement.name) {
+ if (ts.isBindingPattern(bindingElement.name)) {
+ // If it is a nested binding pattern, we will recursively descend into each element and emit each one separately.
+ // In the case of rest element, we will omit rest element.
+ // Example:
+ // original: function foo([a, [[b]], c] = [1,[["string"]], 3]) {}
+ // emit : declare function foo([a, [[b]], c]: [number, [[string]], number]): void;
+ // original with rest: function foo([a, ...c]) {}
+ // emit : declare function foo([a, ...c]): void;
+ emitBindingPattern(bindingElement.name);
+ }
+ else {
+ ts.Debug.assert(bindingElement.name.kind === 69 /* Identifier */);
+ // If the node is just an identifier, we will simply emit the text associated with the node's name
+ // Example:
+ // original: function foo({y = 10, x}) {}
+ // emit : declare function foo({y, x}: {number, any}): void;
+ if (bindingElement.dotDotDotToken) {
+ write("...");
+ }
+ writeTextOfNode(currentSourceFile, bindingElement.name);
+ }
+ }
+ }
+ }
+ }
+ function emitNode(node) {
+ switch (node.kind) {
+ case 213 /* FunctionDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return emitModuleElement(node, isModuleElementVisible(node));
+ case 193 /* VariableStatement */:
+ return emitModuleElement(node, isVariableStatementVisible(node));
+ case 222 /* ImportDeclaration */:
+ // Import declaration without import clause is visible, otherwise it is not visible
+ return emitModuleElement(node, /*isModuleElementVisible*/ !node.importClause);
+ case 228 /* ExportDeclaration */:
+ return emitExportDeclaration(node);
+ case 144 /* Constructor */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return writeFunctionDeclaration(node);
+ case 148 /* ConstructSignature */:
+ case 147 /* CallSignature */:
+ case 149 /* IndexSignature */:
+ return emitSignatureDeclarationWithJsDocComments(node);
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return emitAccessorDeclaration(node);
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return emitPropertyDeclaration(node);
+ case 247 /* EnumMember */:
+ return emitEnumMemberDeclaration(node);
+ case 227 /* ExportAssignment */:
+ return emitExportAssignment(node);
+ case 248 /* SourceFile */:
+ return emitSourceFile(node);
+ }
+ }
+ function writeReferencePath(referencedFile) {
+ var declFileName = referencedFile.flags & 8192 /* DeclarationFile */
+ ? referencedFile.fileName // Declaration file, use declaration file name
+ : ts.shouldEmitToOwnFile(referencedFile, compilerOptions)
+ ? ts.getOwnEmitOutputFilePath(referencedFile, host, ".d.ts") // Own output file so get the .d.ts file
+ : ts.removeFileExtension(compilerOptions.outFile || compilerOptions.out) + ".d.ts"; // Global out file
+ declFileName = ts.getRelativePathToDirectoryOrUrl(ts.getDirectoryPath(ts.normalizeSlashes(jsFilePath)), declFileName, host.getCurrentDirectory(), host.getCanonicalFileName,
+ /*isAbsolutePathAnUrl*/ false);
+ referencePathsOutput += "/// <reference path=\"" + declFileName + "\" />" + newLine;
+ }
+ }
+ /* @internal */
+ function writeDeclarationFile(jsFilePath, sourceFile, host, resolver, diagnostics) {
+ var emitDeclarationResult = emitDeclarations(host, resolver, diagnostics, jsFilePath, sourceFile);
+ // TODO(shkamat): Should we not write any declaration file if any of them can produce error,
+ // or should we just not write this file like we are doing now
+ if (!emitDeclarationResult.reportedDeclarationError) {
+ var declarationOutput = emitDeclarationResult.referencePathsOutput
+ + getDeclarationOutput(emitDeclarationResult.synchronousDeclarationOutput, emitDeclarationResult.moduleElementDeclarationEmitInfo);
+ ts.writeFile(host, diagnostics, ts.removeFileExtension(jsFilePath) + ".d.ts", declarationOutput, host.getCompilerOptions().emitBOM);
+ }
+ function getDeclarationOutput(synchronousDeclarationOutput, moduleElementDeclarationEmitInfo) {
+ var appliedSyncOutputPos = 0;
+ var declarationOutput = "";
+ // apply asynchronous additions to the synchronous output
+ ts.forEach(moduleElementDeclarationEmitInfo, function (aliasEmitInfo) {
+ if (aliasEmitInfo.asynchronousOutput) {
+ declarationOutput += synchronousDeclarationOutput.substring(appliedSyncOutputPos, aliasEmitInfo.outputPos);
+ declarationOutput += getDeclarationOutput(aliasEmitInfo.asynchronousOutput, aliasEmitInfo.subModuleElementDeclarationEmitInfo);
+ appliedSyncOutputPos = aliasEmitInfo.outputPos;
+ }
+ });
+ declarationOutput += synchronousDeclarationOutput.substring(appliedSyncOutputPos);
+ return declarationOutput;
+ }
+ }
+ ts.writeDeclarationFile = writeDeclarationFile;
+})(ts || (ts = {}));
+/// <reference path="checker.ts"/>
+/// <reference path="declarationEmitter.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ function isExternalModuleOrDeclarationFile(sourceFile) {
+ return ts.isExternalModule(sourceFile) || ts.isDeclarationFile(sourceFile);
+ }
+ ts.isExternalModuleOrDeclarationFile = isExternalModuleOrDeclarationFile;
+ var entities = {
+ "quot": 0x0022,
+ "amp": 0x0026,
+ "apos": 0x0027,
+ "lt": 0x003C,
+ "gt": 0x003E,
+ "nbsp": 0x00A0,
+ "iexcl": 0x00A1,
+ "cent": 0x00A2,
+ "pound": 0x00A3,
+ "curren": 0x00A4,
+ "yen": 0x00A5,
+ "brvbar": 0x00A6,
+ "sect": 0x00A7,
+ "uml": 0x00A8,
+ "copy": 0x00A9,
+ "ordf": 0x00AA,
+ "laquo": 0x00AB,
+ "not": 0x00AC,
+ "shy": 0x00AD,
+ "reg": 0x00AE,
+ "macr": 0x00AF,
+ "deg": 0x00B0,
+ "plusmn": 0x00B1,
+ "sup2": 0x00B2,
+ "sup3": 0x00B3,
+ "acute": 0x00B4,
+ "micro": 0x00B5,
+ "para": 0x00B6,
+ "middot": 0x00B7,
+ "cedil": 0x00B8,
+ "sup1": 0x00B9,
+ "ordm": 0x00BA,
+ "raquo": 0x00BB,
+ "frac14": 0x00BC,
+ "frac12": 0x00BD,
+ "frac34": 0x00BE,
+ "iquest": 0x00BF,
+ "Agrave": 0x00C0,
+ "Aacute": 0x00C1,
+ "Acirc": 0x00C2,
+ "Atilde": 0x00C3,
+ "Auml": 0x00C4,
+ "Aring": 0x00C5,
+ "AElig": 0x00C6,
+ "Ccedil": 0x00C7,
+ "Egrave": 0x00C8,
+ "Eacute": 0x00C9,
+ "Ecirc": 0x00CA,
+ "Euml": 0x00CB,
+ "Igrave": 0x00CC,
+ "Iacute": 0x00CD,
+ "Icirc": 0x00CE,
+ "Iuml": 0x00CF,
+ "ETH": 0x00D0,
+ "Ntilde": 0x00D1,
+ "Ograve": 0x00D2,
+ "Oacute": 0x00D3,
+ "Ocirc": 0x00D4,
+ "Otilde": 0x00D5,
+ "Ouml": 0x00D6,
+ "times": 0x00D7,
+ "Oslash": 0x00D8,
+ "Ugrave": 0x00D9,
+ "Uacute": 0x00DA,
+ "Ucirc": 0x00DB,
+ "Uuml": 0x00DC,
+ "Yacute": 0x00DD,
+ "THORN": 0x00DE,
+ "szlig": 0x00DF,
+ "agrave": 0x00E0,
+ "aacute": 0x00E1,
+ "acirc": 0x00E2,
+ "atilde": 0x00E3,
+ "auml": 0x00E4,
+ "aring": 0x00E5,
+ "aelig": 0x00E6,
+ "ccedil": 0x00E7,
+ "egrave": 0x00E8,
+ "eacute": 0x00E9,
+ "ecirc": 0x00EA,
+ "euml": 0x00EB,
+ "igrave": 0x00EC,
+ "iacute": 0x00ED,
+ "icirc": 0x00EE,
+ "iuml": 0x00EF,
+ "eth": 0x00F0,
+ "ntilde": 0x00F1,
+ "ograve": 0x00F2,
+ "oacute": 0x00F3,
+ "ocirc": 0x00F4,
+ "otilde": 0x00F5,
+ "ouml": 0x00F6,
+ "divide": 0x00F7,
+ "oslash": 0x00F8,
+ "ugrave": 0x00F9,
+ "uacute": 0x00FA,
+ "ucirc": 0x00FB,
+ "uuml": 0x00FC,
+ "yacute": 0x00FD,
+ "thorn": 0x00FE,
+ "yuml": 0x00FF,
+ "OElig": 0x0152,
+ "oelig": 0x0153,
+ "Scaron": 0x0160,
+ "scaron": 0x0161,
+ "Yuml": 0x0178,
+ "fnof": 0x0192,
+ "circ": 0x02C6,
+ "tilde": 0x02DC,
+ "Alpha": 0x0391,
+ "Beta": 0x0392,
+ "Gamma": 0x0393,
+ "Delta": 0x0394,
+ "Epsilon": 0x0395,
+ "Zeta": 0x0396,
+ "Eta": 0x0397,
+ "Theta": 0x0398,
+ "Iota": 0x0399,
+ "Kappa": 0x039A,
+ "Lambda": 0x039B,
+ "Mu": 0x039C,
+ "Nu": 0x039D,
+ "Xi": 0x039E,
+ "Omicron": 0x039F,
+ "Pi": 0x03A0,
+ "Rho": 0x03A1,
+ "Sigma": 0x03A3,
+ "Tau": 0x03A4,
+ "Upsilon": 0x03A5,
+ "Phi": 0x03A6,
+ "Chi": 0x03A7,
+ "Psi": 0x03A8,
+ "Omega": 0x03A9,
+ "alpha": 0x03B1,
+ "beta": 0x03B2,
+ "gamma": 0x03B3,
+ "delta": 0x03B4,
+ "epsilon": 0x03B5,
+ "zeta": 0x03B6,
+ "eta": 0x03B7,
+ "theta": 0x03B8,
+ "iota": 0x03B9,
+ "kappa": 0x03BA,
+ "lambda": 0x03BB,
+ "mu": 0x03BC,
+ "nu": 0x03BD,
+ "xi": 0x03BE,
+ "omicron": 0x03BF,
+ "pi": 0x03C0,
+ "rho": 0x03C1,
+ "sigmaf": 0x03C2,
+ "sigma": 0x03C3,
+ "tau": 0x03C4,
+ "upsilon": 0x03C5,
+ "phi": 0x03C6,
+ "chi": 0x03C7,
+ "psi": 0x03C8,
+ "omega": 0x03C9,
+ "thetasym": 0x03D1,
+ "upsih": 0x03D2,
+ "piv": 0x03D6,
+ "ensp": 0x2002,
+ "emsp": 0x2003,
+ "thinsp": 0x2009,
+ "zwnj": 0x200C,
+ "zwj": 0x200D,
+ "lrm": 0x200E,
+ "rlm": 0x200F,
+ "ndash": 0x2013,
+ "mdash": 0x2014,
+ "lsquo": 0x2018,
+ "rsquo": 0x2019,
+ "sbquo": 0x201A,
+ "ldquo": 0x201C,
+ "rdquo": 0x201D,
+ "bdquo": 0x201E,
+ "dagger": 0x2020,
+ "Dagger": 0x2021,
+ "bull": 0x2022,
+ "hellip": 0x2026,
+ "permil": 0x2030,
+ "prime": 0x2032,
+ "Prime": 0x2033,
+ "lsaquo": 0x2039,
+ "rsaquo": 0x203A,
+ "oline": 0x203E,
+ "frasl": 0x2044,
+ "euro": 0x20AC,
+ "image": 0x2111,
+ "weierp": 0x2118,
+ "real": 0x211C,
+ "trade": 0x2122,
+ "alefsym": 0x2135,
+ "larr": 0x2190,
+ "uarr": 0x2191,
+ "rarr": 0x2192,
+ "darr": 0x2193,
+ "harr": 0x2194,
+ "crarr": 0x21B5,
+ "lArr": 0x21D0,
+ "uArr": 0x21D1,
+ "rArr": 0x21D2,
+ "dArr": 0x21D3,
+ "hArr": 0x21D4,
+ "forall": 0x2200,
+ "part": 0x2202,
+ "exist": 0x2203,
+ "empty": 0x2205,
+ "nabla": 0x2207,
+ "isin": 0x2208,
+ "notin": 0x2209,
+ "ni": 0x220B,
+ "prod": 0x220F,
+ "sum": 0x2211,
+ "minus": 0x2212,
+ "lowast": 0x2217,
+ "radic": 0x221A,
+ "prop": 0x221D,
+ "infin": 0x221E,
+ "ang": 0x2220,
+ "and": 0x2227,
+ "or": 0x2228,
+ "cap": 0x2229,
+ "cup": 0x222A,
+ "int": 0x222B,
+ "there4": 0x2234,
+ "sim": 0x223C,
+ "cong": 0x2245,
+ "asymp": 0x2248,
+ "ne": 0x2260,
+ "equiv": 0x2261,
+ "le": 0x2264,
+ "ge": 0x2265,
+ "sub": 0x2282,
+ "sup": 0x2283,
+ "nsub": 0x2284,
+ "sube": 0x2286,
+ "supe": 0x2287,
+ "oplus": 0x2295,
+ "otimes": 0x2297,
+ "perp": 0x22A5,
+ "sdot": 0x22C5,
+ "lceil": 0x2308,
+ "rceil": 0x2309,
+ "lfloor": 0x230A,
+ "rfloor": 0x230B,
+ "lang": 0x2329,
+ "rang": 0x232A,
+ "loz": 0x25CA,
+ "spades": 0x2660,
+ "clubs": 0x2663,
+ "hearts": 0x2665,
+ "diams": 0x2666
+ };
+ // Flags enum to track count of temp variables and a few dedicated names
+ var TempFlags;
+ (function (TempFlags) {
+ TempFlags[TempFlags["Auto"] = 0] = "Auto";
+ TempFlags[TempFlags["CountMask"] = 268435455] = "CountMask";
+ TempFlags[TempFlags["_i"] = 268435456] = "_i";
+ })(TempFlags || (TempFlags = {}));
+ // targetSourceFile is when users only want one file in entire project to be emitted. This is used in compileOnSave feature
+ function emitFiles(resolver, host, targetSourceFile) {
+ // emit output for the __extends helper function
+ var extendsHelper = "\nvar __extends = (this && this.__extends) || function (d, b) {\n for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];\n function __() { this.constructor = d; }\n d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n};";
+ // emit output for the __decorate helper function
+ var decorateHelper = "\nvar __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {\n var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\n if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\n else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\n return c > 3 && r && Object.defineProperty(target, key, r), r;\n};";
+ // emit output for the __metadata helper function
+ var metadataHelper = "\nvar __metadata = (this && this.__metadata) || function (k, v) {\n if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(k, v);\n};";
+ // emit output for the __param helper function
+ var paramHelper = "\nvar __param = (this && this.__param) || function (paramIndex, decorator) {\n return function (target, key) { decorator(target, key, paramIndex); }\n};";
+ var awaiterHelper = "\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, Promise, generator) {\n return new Promise(function (resolve, reject) {\n generator = generator.call(thisArg, _arguments);\n function cast(value) { return value instanceof Promise && value.constructor === Promise ? value : new Promise(function (resolve) { resolve(value); }); }\n function onfulfill(value) { try { step(\"next\", value); } catch (e) { reject(e); } }\n function onreject(value) { try { step(\"throw\", value); } catch (e) { reject(e); } }\n function step(verb, value) {\n var result = generator[verb](value);\n result.done ? resolve(result.value) : cast(result.value).then(onfulfill, onreject);\n }\n step(\"next\", void 0);\n });\n};";
+ var compilerOptions = host.getCompilerOptions();
+ var languageVersion = compilerOptions.target || 0 /* ES3 */;
+ var modulekind = compilerOptions.module ? compilerOptions.module : languageVersion === 2 /* ES6 */ ? 5 /* ES6 */ : 0 /* None */;
+ var sourceMapDataList = compilerOptions.sourceMap || compilerOptions.inlineSourceMap ? [] : undefined;
+ var diagnostics = [];
+ var newLine = host.getNewLine();
+ var jsxDesugaring = host.getCompilerOptions().jsx !== 1 /* Preserve */;
+ var shouldEmitJsx = function (s) { return (s.languageVariant === 1 /* JSX */ && !jsxDesugaring); };
+ if (targetSourceFile === undefined) {
+ ts.forEach(host.getSourceFiles(), function (sourceFile) {
+ if (ts.shouldEmitToOwnFile(sourceFile, compilerOptions)) {
+ var jsFilePath = ts.getOwnEmitOutputFilePath(sourceFile, host, shouldEmitJsx(sourceFile) ? ".jsx" : ".js");
+ emitFile(jsFilePath, sourceFile);
+ }
+ });
+ if (compilerOptions.outFile || compilerOptions.out) {
+ emitFile(compilerOptions.outFile || compilerOptions.out);
+ }
+ }
+ else {
+ // targetSourceFile is specified (e.g calling emitter from language service or calling getSemanticDiagnostic from language service)
+ if (ts.shouldEmitToOwnFile(targetSourceFile, compilerOptions)) {
+ var jsFilePath = ts.getOwnEmitOutputFilePath(targetSourceFile, host, shouldEmitJsx(targetSourceFile) ? ".jsx" : ".js");
+ emitFile(jsFilePath, targetSourceFile);
+ }
+ else if (!ts.isDeclarationFile(targetSourceFile) && (compilerOptions.outFile || compilerOptions.out)) {
+ emitFile(compilerOptions.outFile || compilerOptions.out);
+ }
+ }
+ // Sort and make the unique list of diagnostics
+ diagnostics = ts.sortAndDeduplicateDiagnostics(diagnostics);
+ return {
+ emitSkipped: false,
+ diagnostics: diagnostics,
+ sourceMaps: sourceMapDataList
+ };
+ function isUniqueLocalName(name, container) {
+ for (var node = container; ts.isNodeDescendentOf(node, container); node = node.nextContainer) {
+ if (node.locals && ts.hasProperty(node.locals, name)) {
+ // We conservatively include alias symbols to cover cases where they're emitted as locals
+ if (node.locals[name].flags & (107455 /* Value */ | 1048576 /* ExportValue */ | 8388608 /* Alias */)) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+ function emitJavaScript(jsFilePath, root) {
+ var writer = ts.createTextWriter(newLine);
+ var write = writer.write, writeTextOfNode = writer.writeTextOfNode, writeLine = writer.writeLine, increaseIndent = writer.increaseIndent, decreaseIndent = writer.decreaseIndent;
+ var currentSourceFile;
+ // name of an exporter function if file is a System external module
+ // System.register([...], function (<exporter>) {...})
+ // exporting in System modules looks like:
+ // export var x; ... x = 1
+ // =>
+ // var x;... exporter("x", x = 1)
+ var exportFunctionForFile;
+ var generatedNameSet = {};
+ var nodeToGeneratedName = [];
+ var computedPropertyNamesToGeneratedNames;
+ var extendsEmitted = false;
+ var decorateEmitted = false;
+ var paramEmitted = false;
+ var awaiterEmitted = false;
+ var tempFlags = 0;
+ var tempVariables;
+ var tempParameters;
+ var externalImports;
+ var exportSpecifiers;
+ var exportEquals;
+ var hasExportStars;
+ /** Write emitted output to disk */
+ var writeEmittedFiles = writeJavaScriptFile;
+ var detachedCommentsInfo;
+ var writeComment = ts.writeCommentRange;
+ /** Emit a node */
+ var emit = emitNodeWithCommentsAndWithoutSourcemap;
+ /** Called just before starting emit of a node */
+ var emitStart = function (node) { };
+ /** Called once the emit of the node is done */
+ var emitEnd = function (node) { };
+ /** Emit the text for the given token that comes after startPos
+ * This by default writes the text provided with the given tokenKind
+ * but if optional emitFn callback is provided the text is emitted using the callback instead of default text
+ * @param tokenKind the kind of the token to search and emit
+ * @param startPos the position in the source to start searching for the token
+ * @param emitFn if given will be invoked to emit the text instead of actual token emit */
+ var emitToken = emitTokenText;
+ /** Called to before starting the lexical scopes as in function/class in the emitted code because of node
+ * @param scopeDeclaration node that starts the lexical scope
+ * @param scopeName Optional name of this scope instead of deducing one from the declaration node */
+ var scopeEmitStart = function (scopeDeclaration, scopeName) { };
+ /** Called after coming out of the scope */
+ var scopeEmitEnd = function () { };
+ /** Sourcemap data that will get encoded */
+ var sourceMapData;
+ /** If removeComments is true, no leading-comments needed to be emitted **/
+ var emitLeadingCommentsOfPosition = compilerOptions.removeComments ? function (pos) { } : emitLeadingCommentsOfPositionWorker;
+ var moduleEmitDelegates = (_a = {},
+ _a[5 /* ES6 */] = emitES6Module,
+ _a[2 /* AMD */] = emitAMDModule,
+ _a[4 /* System */] = emitSystemModule,
+ _a[3 /* UMD */] = emitUMDModule,
+ _a[1 /* CommonJS */] = emitCommonJSModule,
+ _a
+ );
+ if (compilerOptions.sourceMap || compilerOptions.inlineSourceMap) {
+ initializeEmitterWithSourceMaps();
+ }
+ if (root) {
+ // Do not call emit directly. It does not set the currentSourceFile.
+ emitSourceFile(root);
+ }
+ else {
+ ts.forEach(host.getSourceFiles(), function (sourceFile) {
+ if (!isExternalModuleOrDeclarationFile(sourceFile)) {
+ emitSourceFile(sourceFile);
+ }
+ });
+ }
+ writeLine();
+ writeEmittedFiles(writer.getText(), /*writeByteOrderMark*/ compilerOptions.emitBOM);
+ return;
+ function emitSourceFile(sourceFile) {
+ currentSourceFile = sourceFile;
+ exportFunctionForFile = undefined;
+ emit(sourceFile);
+ }
+ function isUniqueName(name) {
+ return !resolver.hasGlobalName(name) &&
+ !ts.hasProperty(currentSourceFile.identifiers, name) &&
+ !ts.hasProperty(generatedNameSet, name);
+ }
+ // Return the next available name in the pattern _a ... _z, _0, _1, ...
+ // TempFlags._i or TempFlags._n may be used to express a preference for that dedicated name.
+ // Note that names generated by makeTempVariableName and makeUniqueName will never conflict.
+ function makeTempVariableName(flags) {
+ if (flags && !(tempFlags & flags)) {
+ var name_19 = flags === 268435456 /* _i */ ? "_i" : "_n";
+ if (isUniqueName(name_19)) {
+ tempFlags |= flags;
+ return name_19;
+ }
+ }
+ while (true) {
+ var count = tempFlags & 268435455 /* CountMask */;
+ tempFlags++;
+ // Skip over 'i' and 'n'
+ if (count !== 8 && count !== 13) {
+ var name_20 = count < 26 ? "_" + String.fromCharCode(97 /* a */ + count) : "_" + (count - 26);
+ if (isUniqueName(name_20)) {
+ return name_20;
+ }
+ }
+ }
+ }
+ // Generate a name that is unique within the current file and doesn't conflict with any names
+ // in global scope. The name is formed by adding an '_n' suffix to the specified base name,
+ // where n is a positive integer. Note that names generated by makeTempVariableName and
+ // makeUniqueName are guaranteed to never conflict.
+ function makeUniqueName(baseName) {
+ // Find the first unique 'name_n', where n is a positive number
+ if (baseName.charCodeAt(baseName.length - 1) !== 95 /* _ */) {
+ baseName += "_";
+ }
+ var i = 1;
+ while (true) {
+ var generatedName = baseName + i;
+ if (isUniqueName(generatedName)) {
+ return generatedNameSet[generatedName] = generatedName;
+ }
+ i++;
+ }
+ }
+ function generateNameForModuleOrEnum(node) {
+ var name = node.name.text;
+ // Use module/enum name itself if it is unique, otherwise make a unique variation
+ return isUniqueLocalName(name, node) ? name : makeUniqueName(name);
+ }
+ function generateNameForImportOrExportDeclaration(node) {
+ var expr = ts.getExternalModuleName(node);
+ var baseName = expr.kind === 9 /* StringLiteral */ ?
+ ts.escapeIdentifier(ts.makeIdentifierFromModuleName(expr.text)) : "module";
+ return makeUniqueName(baseName);
+ }
+ function generateNameForExportDefault() {
+ return makeUniqueName("default");
+ }
+ function generateNameForClassExpression() {
+ return makeUniqueName("class");
+ }
+ function generateNameForNode(node) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ return makeUniqueName(node.text);
+ case 218 /* ModuleDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return generateNameForModuleOrEnum(node);
+ case 222 /* ImportDeclaration */:
+ case 228 /* ExportDeclaration */:
+ return generateNameForImportOrExportDeclaration(node);
+ case 213 /* FunctionDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 227 /* ExportAssignment */:
+ return generateNameForExportDefault();
+ case 186 /* ClassExpression */:
+ return generateNameForClassExpression();
+ }
+ }
+ function getGeneratedNameForNode(node) {
+ var id = ts.getNodeId(node);
+ return nodeToGeneratedName[id] || (nodeToGeneratedName[id] = ts.unescapeIdentifier(generateNameForNode(node)));
+ }
+ function initializeEmitterWithSourceMaps() {
+ var sourceMapDir; // The directory in which sourcemap will be
+ // Current source map file and its index in the sources list
+ var sourceMapSourceIndex = -1;
+ // Names and its index map
+ var sourceMapNameIndexMap = {};
+ var sourceMapNameIndices = [];
+ function getSourceMapNameIndex() {
+ return sourceMapNameIndices.length ? ts.lastOrUndefined(sourceMapNameIndices) : -1;
+ }
+ // Last recorded and encoded spans
+ var lastRecordedSourceMapSpan;
+ var lastEncodedSourceMapSpan = {
+ emittedLine: 1,
+ emittedColumn: 1,
+ sourceLine: 1,
+ sourceColumn: 1,
+ sourceIndex: 0
+ };
+ var lastEncodedNameIndex = 0;
+ // Encoding for sourcemap span
+ function encodeLastRecordedSourceMapSpan() {
+ if (!lastRecordedSourceMapSpan || lastRecordedSourceMapSpan === lastEncodedSourceMapSpan) {
+ return;
+ }
+ var prevEncodedEmittedColumn = lastEncodedSourceMapSpan.emittedColumn;
+ // Line/Comma delimiters
+ if (lastEncodedSourceMapSpan.emittedLine === lastRecordedSourceMapSpan.emittedLine) {
+ // Emit comma to separate the entry
+ if (sourceMapData.sourceMapMappings) {
+ sourceMapData.sourceMapMappings += ",";
+ }
+ }
+ else {
+ // Emit line delimiters
+ for (var encodedLine = lastEncodedSourceMapSpan.emittedLine; encodedLine < lastRecordedSourceMapSpan.emittedLine; encodedLine++) {
+ sourceMapData.sourceMapMappings += ";";
+ }
+ prevEncodedEmittedColumn = 1;
+ }
+ // 1. Relative Column 0 based
+ sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.emittedColumn - prevEncodedEmittedColumn);
+ // 2. Relative sourceIndex
+ sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceIndex - lastEncodedSourceMapSpan.sourceIndex);
+ // 3. Relative sourceLine 0 based
+ sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceLine - lastEncodedSourceMapSpan.sourceLine);
+ // 4. Relative sourceColumn 0 based
+ sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.sourceColumn - lastEncodedSourceMapSpan.sourceColumn);
+ // 5. Relative namePosition 0 based
+ if (lastRecordedSourceMapSpan.nameIndex >= 0) {
+ sourceMapData.sourceMapMappings += base64VLQFormatEncode(lastRecordedSourceMapSpan.nameIndex - lastEncodedNameIndex);
+ lastEncodedNameIndex = lastRecordedSourceMapSpan.nameIndex;
+ }
+ lastEncodedSourceMapSpan = lastRecordedSourceMapSpan;
+ sourceMapData.sourceMapDecodedMappings.push(lastEncodedSourceMapSpan);
+ function base64VLQFormatEncode(inValue) {
+ function base64FormatEncode(inValue) {
+ if (inValue < 64) {
+ return "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charAt(inValue);
+ }
+ throw TypeError(inValue + ": not a 64 based value");
+ }
+ // Add a new least significant bit that has the sign of the value.
+ // if negative number the least significant bit that gets added to the number has value 1
+ // else least significant bit value that gets added is 0
+ // eg. -1 changes to binary : 01 [1] => 3
+ // +1 changes to binary : 01 [0] => 2
+ if (inValue < 0) {
+ inValue = ((-inValue) << 1) + 1;
+ }
+ else {
+ inValue = inValue << 1;
+ }
+ // Encode 5 bits at a time starting from least significant bits
+ var encodedStr = "";
+ do {
+ var currentDigit = inValue & 31; // 11111
+ inValue = inValue >> 5;
+ if (inValue > 0) {
+ // There are still more digits to decode, set the msb (6th bit)
+ currentDigit = currentDigit | 32;
+ }
+ encodedStr = encodedStr + base64FormatEncode(currentDigit);
+ } while (inValue > 0);
+ return encodedStr;
+ }
+ }
+ function recordSourceMapSpan(pos) {
+ var sourceLinePos = ts.getLineAndCharacterOfPosition(currentSourceFile, pos);
+ // Convert the location to be one-based.
+ sourceLinePos.line++;
+ sourceLinePos.character++;
+ var emittedLine = writer.getLine();
+ var emittedColumn = writer.getColumn();
+ // If this location wasn't recorded or the location in source is going backwards, record the span
+ if (!lastRecordedSourceMapSpan ||
+ lastRecordedSourceMapSpan.emittedLine !== emittedLine ||
+ lastRecordedSourceMapSpan.emittedColumn !== emittedColumn ||
+ (lastRecordedSourceMapSpan.sourceIndex === sourceMapSourceIndex &&
+ (lastRecordedSourceMapSpan.sourceLine > sourceLinePos.line ||
+ (lastRecordedSourceMapSpan.sourceLine === sourceLinePos.line && lastRecordedSourceMapSpan.sourceColumn > sourceLinePos.character)))) {
+ // Encode the last recordedSpan before assigning new
+ encodeLastRecordedSourceMapSpan();
+ // New span
+ lastRecordedSourceMapSpan = {
+ emittedLine: emittedLine,
+ emittedColumn: emittedColumn,
+ sourceLine: sourceLinePos.line,
+ sourceColumn: sourceLinePos.character,
+ nameIndex: getSourceMapNameIndex(),
+ sourceIndex: sourceMapSourceIndex
+ };
+ }
+ else {
+ // Take the new pos instead since there is no change in emittedLine and column since last location
+ lastRecordedSourceMapSpan.sourceLine = sourceLinePos.line;
+ lastRecordedSourceMapSpan.sourceColumn = sourceLinePos.character;
+ lastRecordedSourceMapSpan.sourceIndex = sourceMapSourceIndex;
+ }
+ }
+ function recordEmitNodeStartSpan(node) {
+ // Get the token pos after skipping to the token (ignoring the leading trivia)
+ recordSourceMapSpan(ts.skipTrivia(currentSourceFile.text, node.pos));
+ }
+ function recordEmitNodeEndSpan(node) {
+ recordSourceMapSpan(node.end);
+ }
+ function writeTextWithSpanRecord(tokenKind, startPos, emitFn) {
+ var tokenStartPos = ts.skipTrivia(currentSourceFile.text, startPos);
+ recordSourceMapSpan(tokenStartPos);
+ var tokenEndPos = emitTokenText(tokenKind, tokenStartPos, emitFn);
+ recordSourceMapSpan(tokenEndPos);
+ return tokenEndPos;
+ }
+ function recordNewSourceFileStart(node) {
+ // Add the file to tsFilePaths
+ // If sourceroot option: Use the relative path corresponding to the common directory path
+ // otherwise source locations relative to map file location
+ var sourcesDirectoryPath = compilerOptions.sourceRoot ? host.getCommonSourceDirectory() : sourceMapDir;
+ sourceMapData.sourceMapSources.push(ts.getRelativePathToDirectoryOrUrl(sourcesDirectoryPath, node.fileName, host.getCurrentDirectory(), host.getCanonicalFileName,
+ /*isAbsolutePathAnUrl*/ true));
+ sourceMapSourceIndex = sourceMapData.sourceMapSources.length - 1;
+ // The one that can be used from program to get the actual source file
+ sourceMapData.inputSourceFileNames.push(node.fileName);
+ if (compilerOptions.inlineSources) {
+ if (!sourceMapData.sourceMapSourcesContent) {
+ sourceMapData.sourceMapSourcesContent = [];
+ }
+ sourceMapData.sourceMapSourcesContent.push(node.text);
+ }
+ }
+ function recordScopeNameOfNode(node, scopeName) {
+ function recordScopeNameIndex(scopeNameIndex) {
+ sourceMapNameIndices.push(scopeNameIndex);
+ }
+ function recordScopeNameStart(scopeName) {
+ var scopeNameIndex = -1;
+ if (scopeName) {
+ var parentIndex = getSourceMapNameIndex();
+ if (parentIndex !== -1) {
+ // Child scopes are always shown with a dot (even if they have no name),
+ // unless it is a computed property. Then it is shown with brackets,
+ // but the brackets are included in the name.
+ var name_21 = node.name;
+ if (!name_21 || name_21.kind !== 136 /* ComputedPropertyName */) {
+ scopeName = "." + scopeName;
+ }
+ scopeName = sourceMapData.sourceMapNames[parentIndex] + scopeName;
+ }
+ scopeNameIndex = ts.getProperty(sourceMapNameIndexMap, scopeName);
+ if (scopeNameIndex === undefined) {
+ scopeNameIndex = sourceMapData.sourceMapNames.length;
+ sourceMapData.sourceMapNames.push(scopeName);
+ sourceMapNameIndexMap[scopeName] = scopeNameIndex;
+ }
+ }
+ recordScopeNameIndex(scopeNameIndex);
+ }
+ if (scopeName) {
+ // The scope was already given a name use it
+ recordScopeNameStart(scopeName);
+ }
+ else if (node.kind === 213 /* FunctionDeclaration */ ||
+ node.kind === 173 /* FunctionExpression */ ||
+ node.kind === 143 /* MethodDeclaration */ ||
+ node.kind === 142 /* MethodSignature */ ||
+ node.kind === 145 /* GetAccessor */ ||
+ node.kind === 146 /* SetAccessor */ ||
+ node.kind === 218 /* ModuleDeclaration */ ||
+ node.kind === 214 /* ClassDeclaration */ ||
+ node.kind === 217 /* EnumDeclaration */) {
+ // Declaration and has associated name use it
+ if (node.name) {
+ var name_22 = node.name;
+ // For computed property names, the text will include the brackets
+ scopeName = name_22.kind === 136 /* ComputedPropertyName */
+ ? ts.getTextOfNode(name_22)
+ : node.name.text;
+ }
+ recordScopeNameStart(scopeName);
+ }
+ else {
+ // Block just use the name from upper level scope
+ recordScopeNameIndex(getSourceMapNameIndex());
+ }
+ }
+ function recordScopeNameEnd() {
+ sourceMapNameIndices.pop();
+ }
+ ;
+ function writeCommentRangeWithMap(curentSourceFile, writer, comment, newLine) {
+ recordSourceMapSpan(comment.pos);
+ ts.writeCommentRange(currentSourceFile, writer, comment, newLine);
+ recordSourceMapSpan(comment.end);
+ }
+ function serializeSourceMapContents(version, file, sourceRoot, sources, names, mappings, sourcesContent) {
+ if (typeof JSON !== "undefined") {
+ var map_1 = {
+ version: version,
+ file: file,
+ sourceRoot: sourceRoot,
+ sources: sources,
+ names: names,
+ mappings: mappings
+ };
+ if (sourcesContent !== undefined) {
+ map_1.sourcesContent = sourcesContent;
+ }
+ return JSON.stringify(map_1);
+ }
+ return "{\"version\":" + version + ",\"file\":\"" + ts.escapeString(file) + "\",\"sourceRoot\":\"" + ts.escapeString(sourceRoot) + "\",\"sources\":[" + serializeStringArray(sources) + "],\"names\":[" + serializeStringArray(names) + "],\"mappings\":\"" + ts.escapeString(mappings) + "\" " + (sourcesContent !== undefined ? ",\"sourcesContent\":[" + serializeStringArray(sourcesContent) + "]" : "") + "}";
+ function serializeStringArray(list) {
+ var output = "";
+ for (var i = 0, n = list.length; i < n; i++) {
+ if (i) {
+ output += ",";
+ }
+ output += "\"" + ts.escapeString(list[i]) + "\"";
+ }
+ return output;
+ }
+ }
+ function writeJavaScriptAndSourceMapFile(emitOutput, writeByteOrderMark) {
+ encodeLastRecordedSourceMapSpan();
+ var sourceMapText = serializeSourceMapContents(3, sourceMapData.sourceMapFile, sourceMapData.sourceMapSourceRoot, sourceMapData.sourceMapSources, sourceMapData.sourceMapNames, sourceMapData.sourceMapMappings, sourceMapData.sourceMapSourcesContent);
+ sourceMapDataList.push(sourceMapData);
+ var sourceMapUrl;
+ if (compilerOptions.inlineSourceMap) {
+ // Encode the sourceMap into the sourceMap url
+ var base64SourceMapText = ts.convertToBase64(sourceMapText);
+ sourceMapUrl = "//# sourceMappingURL=data:application/json;base64," + base64SourceMapText;
+ }
+ else {
+ // Write source map file
+ ts.writeFile(host, diagnostics, sourceMapData.sourceMapFilePath, sourceMapText, /*writeByteOrderMark*/ false);
+ sourceMapUrl = "//# sourceMappingURL=" + sourceMapData.jsSourceMappingURL;
+ }
+ // Write sourcemap url to the js file and write the js file
+ writeJavaScriptFile(emitOutput + sourceMapUrl, writeByteOrderMark);
+ }
+ // Initialize source map data
+ var sourceMapJsFile = ts.getBaseFileName(ts.normalizeSlashes(jsFilePath));
+ sourceMapData = {
+ sourceMapFilePath: jsFilePath + ".map",
+ jsSourceMappingURL: sourceMapJsFile + ".map",
+ sourceMapFile: sourceMapJsFile,
+ sourceMapSourceRoot: compilerOptions.sourceRoot || "",
+ sourceMapSources: [],
+ inputSourceFileNames: [],
+ sourceMapNames: [],
+ sourceMapMappings: "",
+ sourceMapSourcesContent: undefined,
+ sourceMapDecodedMappings: []
+ };
+ // Normalize source root and make sure it has trailing "/" so that it can be used to combine paths with the
+ // relative paths of the sources list in the sourcemap
+ sourceMapData.sourceMapSourceRoot = ts.normalizeSlashes(sourceMapData.sourceMapSourceRoot);
+ if (sourceMapData.sourceMapSourceRoot.length && sourceMapData.sourceMapSourceRoot.charCodeAt(sourceMapData.sourceMapSourceRoot.length - 1) !== 47 /* slash */) {
+ sourceMapData.sourceMapSourceRoot += ts.directorySeparator;
+ }
+ if (compilerOptions.mapRoot) {
+ sourceMapDir = ts.normalizeSlashes(compilerOptions.mapRoot);
+ if (root) {
+ // For modules or multiple emit files the mapRoot will have directory structure like the sources
+ // So if src\a.ts and src\lib\b.ts are compiled together user would be moving the maps into mapRoot\a.js.map and mapRoot\lib\b.js.map
+ sourceMapDir = ts.getDirectoryPath(ts.getSourceFilePathInNewDir(root, host, sourceMapDir));
+ }
+ if (!ts.isRootedDiskPath(sourceMapDir) && !ts.isUrl(sourceMapDir)) {
+ // The relative paths are relative to the common directory
+ sourceMapDir = ts.combinePaths(host.getCommonSourceDirectory(), sourceMapDir);
+ sourceMapData.jsSourceMappingURL = ts.getRelativePathToDirectoryOrUrl(ts.getDirectoryPath(ts.normalizePath(jsFilePath)), // get the relative sourceMapDir path based on jsFilePath
+ ts.combinePaths(sourceMapDir, sourceMapData.jsSourceMappingURL), // this is where user expects to see sourceMap
+ host.getCurrentDirectory(), host.getCanonicalFileName,
+ /*isAbsolutePathAnUrl*/ true);
+ }
+ else {
+ sourceMapData.jsSourceMappingURL = ts.combinePaths(sourceMapDir, sourceMapData.jsSourceMappingURL);
+ }
+ }
+ else {
+ sourceMapDir = ts.getDirectoryPath(ts.normalizePath(jsFilePath));
+ }
+ function emitNodeWithSourceMap(node) {
+ if (node) {
+ if (ts.nodeIsSynthesized(node)) {
+ return emitNodeWithoutSourceMap(node);
+ }
+ if (node.kind !== 248 /* SourceFile */) {
+ recordEmitNodeStartSpan(node);
+ emitNodeWithoutSourceMap(node);
+ recordEmitNodeEndSpan(node);
+ }
+ else {
+ recordNewSourceFileStart(node);
+ emitNodeWithoutSourceMap(node);
+ }
+ }
+ }
+ function emitNodeWithCommentsAndWithSourcemap(node) {
+ emitNodeConsideringCommentsOption(node, emitNodeWithSourceMap);
+ }
+ writeEmittedFiles = writeJavaScriptAndSourceMapFile;
+ emit = emitNodeWithCommentsAndWithSourcemap;
+ emitStart = recordEmitNodeStartSpan;
+ emitEnd = recordEmitNodeEndSpan;
+ emitToken = writeTextWithSpanRecord;
+ scopeEmitStart = recordScopeNameOfNode;
+ scopeEmitEnd = recordScopeNameEnd;
+ writeComment = writeCommentRangeWithMap;
+ }
+ function writeJavaScriptFile(emitOutput, writeByteOrderMark) {
+ ts.writeFile(host, diagnostics, jsFilePath, emitOutput, writeByteOrderMark);
+ }
+ // Create a temporary variable with a unique unused name.
+ function createTempVariable(flags) {
+ var result = ts.createSynthesizedNode(69 /* Identifier */);
+ result.text = makeTempVariableName(flags);
+ return result;
+ }
+ function recordTempDeclaration(name) {
+ if (!tempVariables) {
+ tempVariables = [];
+ }
+ tempVariables.push(name);
+ }
+ function createAndRecordTempVariable(flags) {
+ var temp = createTempVariable(flags);
+ recordTempDeclaration(temp);
+ return temp;
+ }
+ function emitTempDeclarations(newLine) {
+ if (tempVariables) {
+ if (newLine) {
+ writeLine();
+ }
+ else {
+ write(" ");
+ }
+ write("var ");
+ emitCommaList(tempVariables);
+ write(";");
+ }
+ }
+ function emitTokenText(tokenKind, startPos, emitFn) {
+ var tokenString = ts.tokenToString(tokenKind);
+ if (emitFn) {
+ emitFn();
+ }
+ else {
+ write(tokenString);
+ }
+ return startPos + tokenString.length;
+ }
+ function emitOptional(prefix, node) {
+ if (node) {
+ write(prefix);
+ emit(node);
+ }
+ }
+ function emitParenthesizedIf(node, parenthesized) {
+ if (parenthesized) {
+ write("(");
+ }
+ emit(node);
+ if (parenthesized) {
+ write(")");
+ }
+ }
+ function emitTrailingCommaIfPresent(nodeList) {
+ if (nodeList.hasTrailingComma) {
+ write(",");
+ }
+ }
+ function emitLinePreservingList(parent, nodes, allowTrailingComma, spacesBetweenBraces) {
+ ts.Debug.assert(nodes.length > 0);
+ increaseIndent();
+ if (nodeStartPositionsAreOnSameLine(parent, nodes[0])) {
+ if (spacesBetweenBraces) {
+ write(" ");
+ }
+ }
+ else {
+ writeLine();
+ }
+ for (var i = 0, n = nodes.length; i < n; i++) {
+ if (i) {
+ if (nodeEndIsOnSameLineAsNodeStart(nodes[i - 1], nodes[i])) {
+ write(", ");
+ }
+ else {
+ write(",");
+ writeLine();
+ }
+ }
+ emit(nodes[i]);
+ }
+ if (nodes.hasTrailingComma && allowTrailingComma) {
+ write(",");
+ }
+ decreaseIndent();
+ if (nodeEndPositionsAreOnSameLine(parent, ts.lastOrUndefined(nodes))) {
+ if (spacesBetweenBraces) {
+ write(" ");
+ }
+ }
+ else {
+ writeLine();
+ }
+ }
+ function emitList(nodes, start, count, multiLine, trailingComma, leadingComma, noTrailingNewLine, emitNode) {
+ if (!emitNode) {
+ emitNode = emit;
+ }
+ for (var i = 0; i < count; i++) {
+ if (multiLine) {
+ if (i || leadingComma) {
+ write(",");
+ }
+ writeLine();
+ }
+ else {
+ if (i || leadingComma) {
+ write(", ");
+ }
+ }
+ var node = nodes[start + i];
+ // This emitting is to make sure we emit following comment properly
+ // ...(x, /*comment1*/ y)...
+ // ^ => node.pos
+ // "comment1" is not considered leading comment for "y" but rather
+ // considered as trailing comment of the previous node.
+ emitTrailingCommentsOfPosition(node.pos);
+ emitNode(node);
+ leadingComma = true;
+ }
+ if (trailingComma) {
+ write(",");
+ }
+ if (multiLine && !noTrailingNewLine) {
+ writeLine();
+ }
+ return count;
+ }
+ function emitCommaList(nodes) {
+ if (nodes) {
+ emitList(nodes, 0, nodes.length, /*multiline*/ false, /*trailingComma*/ false);
+ }
+ }
+ function emitLines(nodes) {
+ emitLinesStartingAt(nodes, /*startIndex*/ 0);
+ }
+ function emitLinesStartingAt(nodes, startIndex) {
+ for (var i = startIndex; i < nodes.length; i++) {
+ writeLine();
+ emit(nodes[i]);
+ }
+ }
+ function isBinaryOrOctalIntegerLiteral(node, text) {
+ if (node.kind === 8 /* NumericLiteral */ && text.length > 1) {
+ switch (text.charCodeAt(1)) {
+ case 98 /* b */:
+ case 66 /* B */:
+ case 111 /* o */:
+ case 79 /* O */:
+ return true;
+ }
+ }
+ return false;
+ }
+ function emitLiteral(node) {
+ var text = getLiteralText(node);
+ if ((compilerOptions.sourceMap || compilerOptions.inlineSourceMap) && (node.kind === 9 /* StringLiteral */ || ts.isTemplateLiteralKind(node.kind))) {
+ writer.writeLiteral(text);
+ }
+ else if (languageVersion < 2 /* ES6 */ && isBinaryOrOctalIntegerLiteral(node, text)) {
+ write(node.text);
+ }
+ else {
+ write(text);
+ }
+ }
+ function getLiteralText(node) {
+ // Any template literal or string literal with an extended escape
+ // (e.g. "\u{0067}") will need to be downleveled as a escaped string literal.
+ if (languageVersion < 2 /* ES6 */ && (ts.isTemplateLiteralKind(node.kind) || node.hasExtendedUnicodeEscape)) {
+ return getQuotedEscapedLiteralText("\"", node.text, "\"");
+ }
+ // If we don't need to downlevel and we can reach the original source text using
+ // the node's parent reference, then simply get the text as it was originally written.
+ if (node.parent) {
+ return ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
+ }
+ // If we can't reach the original source text, use the canonical form if it's a number,
+ // or an escaped quoted form of the original text if it's string-like.
+ switch (node.kind) {
+ case 9 /* StringLiteral */:
+ return getQuotedEscapedLiteralText("\"", node.text, "\"");
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ return getQuotedEscapedLiteralText("`", node.text, "`");
+ case 12 /* TemplateHead */:
+ return getQuotedEscapedLiteralText("`", node.text, "${");
+ case 13 /* TemplateMiddle */:
+ return getQuotedEscapedLiteralText("}", node.text, "${");
+ case 14 /* TemplateTail */:
+ return getQuotedEscapedLiteralText("}", node.text, "`");
+ case 8 /* NumericLiteral */:
+ return node.text;
+ }
+ ts.Debug.fail("Literal kind '" + node.kind + "' not accounted for.");
+ }
+ function getQuotedEscapedLiteralText(leftQuote, text, rightQuote) {
+ return leftQuote + ts.escapeNonAsciiCharacters(ts.escapeString(text)) + rightQuote;
+ }
+ function emitDownlevelRawTemplateLiteral(node) {
+ // Find original source text, since we need to emit the raw strings of the tagged template.
+ // The raw strings contain the (escaped) strings of what the user wrote.
+ // Examples: `\n` is converted to "\\n", a template string with a newline to "\n".
+ var text = ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node);
+ // text contains the original source, it will also contain quotes ("`"), dolar signs and braces ("${" and "}"),
+ // thus we need to remove those characters.
+ // First template piece starts with "`", others with "}"
+ // Last template piece ends with "`", others with "${"
+ var isLast = node.kind === 11 /* NoSubstitutionTemplateLiteral */ || node.kind === 14 /* TemplateTail */;
+ text = text.substring(1, text.length - (isLast ? 1 : 2));
+ // Newline normalization:
+ // ES6 Spec 11.8.6.1 - Static Semantics of TV's and TRV's
+ // <CR><LF> and <CR> LineTerminatorSequences are normalized to <LF> for both TV and TRV.
+ text = text.replace(/\r\n?/g, "\n");
+ text = ts.escapeString(text);
+ write("\"" + text + "\"");
+ }
+ function emitDownlevelTaggedTemplateArray(node, literalEmitter) {
+ write("[");
+ if (node.template.kind === 11 /* NoSubstitutionTemplateLiteral */) {
+ literalEmitter(node.template);
+ }
+ else {
+ literalEmitter(node.template.head);
+ ts.forEach(node.template.templateSpans, function (child) {
+ write(", ");
+ literalEmitter(child.literal);
+ });
+ }
+ write("]");
+ }
+ function emitDownlevelTaggedTemplate(node) {
+ var tempVariable = createAndRecordTempVariable(0 /* Auto */);
+ write("(");
+ emit(tempVariable);
+ write(" = ");
+ emitDownlevelTaggedTemplateArray(node, emit);
+ write(", ");
+ emit(tempVariable);
+ write(".raw = ");
+ emitDownlevelTaggedTemplateArray(node, emitDownlevelRawTemplateLiteral);
+ write(", ");
+ emitParenthesizedIf(node.tag, needsParenthesisForPropertyAccessOrInvocation(node.tag));
+ write("(");
+ emit(tempVariable);
+ // Now we emit the expressions
+ if (node.template.kind === 183 /* TemplateExpression */) {
+ ts.forEach(node.template.templateSpans, function (templateSpan) {
+ write(", ");
+ var needsParens = templateSpan.expression.kind === 181 /* BinaryExpression */
+ && templateSpan.expression.operatorToken.kind === 24 /* CommaToken */;
+ emitParenthesizedIf(templateSpan.expression, needsParens);
+ });
+ }
+ write("))");
+ }
+ function emitTemplateExpression(node) {
+ // In ES6 mode and above, we can simply emit each portion of a template in order, but in
+ // ES3 & ES5 we must convert the template expression into a series of string concatenations.
+ if (languageVersion >= 2 /* ES6 */) {
+ ts.forEachChild(node, emit);
+ return;
+ }
+ var emitOuterParens = ts.isExpression(node.parent)
+ && templateNeedsParens(node, node.parent);
+ if (emitOuterParens) {
+ write("(");
+ }
+ var headEmitted = false;
+ if (shouldEmitTemplateHead()) {
+ emitLiteral(node.head);
+ headEmitted = true;
+ }
+ for (var i = 0, n = node.templateSpans.length; i < n; i++) {
+ var templateSpan = node.templateSpans[i];
+ // Check if the expression has operands and binds its operands less closely than binary '+'.
+ // If it does, we need to wrap the expression in parentheses. Otherwise, something like
+ // `abc${ 1 << 2 }`
+ // becomes
+ // "abc" + 1 << 2 + ""
+ // which is really
+ // ("abc" + 1) << (2 + "")
+ // rather than
+ // "abc" + (1 << 2) + ""
+ var needsParens = templateSpan.expression.kind !== 172 /* ParenthesizedExpression */
+ && comparePrecedenceToBinaryPlus(templateSpan.expression) !== 1 /* GreaterThan */;
+ if (i > 0 || headEmitted) {
+ // If this is the first span and the head was not emitted, then this templateSpan's
+ // expression will be the first to be emitted. Don't emit the preceding ' + ' in that
+ // case.
+ write(" + ");
+ }
+ emitParenthesizedIf(templateSpan.expression, needsParens);
+ // Only emit if the literal is non-empty.
+ // The binary '+' operator is left-associative, so the first string concatenation
+ // with the head will force the result up to this point to be a string.
+ // Emitting a '+ ""' has no semantic effect for middles and tails.
+ if (templateSpan.literal.text.length !== 0) {
+ write(" + ");
+ emitLiteral(templateSpan.literal);
+ }
+ }
+ if (emitOuterParens) {
+ write(")");
+ }
+ function shouldEmitTemplateHead() {
+ // If this expression has an empty head literal and the first template span has a non-empty
+ // literal, then emitting the empty head literal is not necessary.
+ // `${ foo } and ${ bar }`
+ // can be emitted as
+ // foo + " and " + bar
+ // This is because it is only required that one of the first two operands in the emit
+ // output must be a string literal, so that the other operand and all following operands
+ // are forced into strings.
+ //
+ // If the first template span has an empty literal, then the head must still be emitted.
+ // `${ foo }${ bar }`
+ // must still be emitted as
+ // "" + foo + bar
+ // There is always atleast one templateSpan in this code path, since
+ // NoSubstitutionTemplateLiterals are directly emitted via emitLiteral()
+ ts.Debug.assert(node.templateSpans.length !== 0);
+ return node.head.text.length !== 0 || node.templateSpans[0].literal.text.length === 0;
+ }
+ function templateNeedsParens(template, parent) {
+ switch (parent.kind) {
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ return parent.expression === template;
+ case 170 /* TaggedTemplateExpression */:
+ case 172 /* ParenthesizedExpression */:
+ return false;
+ default:
+ return comparePrecedenceToBinaryPlus(parent) !== -1 /* LessThan */;
+ }
+ }
+ /**
+ * Returns whether the expression has lesser, greater,
+ * or equal precedence to the binary '+' operator
+ */
+ function comparePrecedenceToBinaryPlus(expression) {
+ // All binary expressions have lower precedence than '+' apart from '*', '/', and '%'
+ // which have greater precedence and '-' which has equal precedence.
+ // All unary operators have a higher precedence apart from yield.
+ // Arrow functions and conditionals have a lower precedence,
+ // although we convert the former into regular function expressions in ES5 mode,
+ // and in ES6 mode this function won't get called anyway.
+ //
+ // TODO (drosen): Note that we need to account for the upcoming 'yield' and
+ // spread ('...') unary operators that are anticipated for ES6.
+ switch (expression.kind) {
+ case 181 /* BinaryExpression */:
+ switch (expression.operatorToken.kind) {
+ case 37 /* AsteriskToken */:
+ case 39 /* SlashToken */:
+ case 40 /* PercentToken */:
+ return 1 /* GreaterThan */;
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ return 0 /* EqualTo */;
+ default:
+ return -1 /* LessThan */;
+ }
+ case 184 /* YieldExpression */:
+ case 182 /* ConditionalExpression */:
+ return -1 /* LessThan */;
+ default:
+ return 1 /* GreaterThan */;
+ }
+ }
+ }
+ function emitTemplateSpan(span) {
+ emit(span.expression);
+ emit(span.literal);
+ }
+ function jsxEmitReact(node) {
+ /// Emit a tag name, which is either '"div"' for lower-cased names, or
+ /// 'Div' for upper-cased or dotted names
+ function emitTagName(name) {
+ if (name.kind === 69 /* Identifier */ && ts.isIntrinsicJsxName(name.text)) {
+ write("\"");
+ emit(name);
+ write("\"");
+ }
+ else {
+ emit(name);
+ }
+ }
+ /// Emit an attribute name, which is quoted if it needs to be quoted. Because
+ /// these emit into an object literal property name, we don't need to be worried
+ /// about keywords, just non-identifier characters
+ function emitAttributeName(name) {
+ if (/[A-Za-z_]+[\w*]/.test(name.text)) {
+ write("\"");
+ emit(name);
+ write("\"");
+ }
+ else {
+ emit(name);
+ }
+ }
+ /// Emit an name/value pair for an attribute (e.g. "x: 3")
+ function emitJsxAttribute(node) {
+ emitAttributeName(node.name);
+ write(": ");
+ if (node.initializer) {
+ emit(node.initializer);
+ }
+ else {
+ write("true");
+ }
+ }
+ function emitJsxElement(openingNode, children) {
+ var syntheticReactRef = ts.createSynthesizedNode(69 /* Identifier */);
+ syntheticReactRef.text = "React";
+ syntheticReactRef.parent = openingNode;
+ // Call React.createElement(tag, ...
+ emitLeadingComments(openingNode);
+ emitExpressionIdentifier(syntheticReactRef);
+ write(".createElement(");
+ emitTagName(openingNode.tagName);
+ write(", ");
+ // Attribute list
+ if (openingNode.attributes.length === 0) {
+ // When there are no attributes, React wants "null"
+ write("null");
+ }
+ else {
+ // Either emit one big object literal (no spread attribs), or
+ // a call to React.__spread
+ var attrs = openingNode.attributes;
+ if (ts.forEach(attrs, function (attr) { return attr.kind === 239 /* JsxSpreadAttribute */; })) {
+ emitExpressionIdentifier(syntheticReactRef);
+ write(".__spread(");
+ var haveOpenedObjectLiteral = false;
+ for (var i_1 = 0; i_1 < attrs.length; i_1++) {
+ if (attrs[i_1].kind === 239 /* JsxSpreadAttribute */) {
+ // If this is the first argument, we need to emit a {} as the first argument
+ if (i_1 === 0) {
+ write("{}, ");
+ }
+ if (haveOpenedObjectLiteral) {
+ write("}");
+ haveOpenedObjectLiteral = false;
+ }
+ if (i_1 > 0) {
+ write(", ");
+ }
+ emit(attrs[i_1].expression);
+ }
+ else {
+ ts.Debug.assert(attrs[i_1].kind === 238 /* JsxAttribute */);
+ if (haveOpenedObjectLiteral) {
+ write(", ");
+ }
+ else {
+ haveOpenedObjectLiteral = true;
+ if (i_1 > 0) {
+ write(", ");
+ }
+ write("{");
+ }
+ emitJsxAttribute(attrs[i_1]);
+ }
+ }
+ if (haveOpenedObjectLiteral)
+ write("}");
+ write(")"); // closing paren to React.__spread(
+ }
+ else {
+ // One object literal with all the attributes in them
+ write("{");
+ for (var i = 0; i < attrs.length; i++) {
+ if (i > 0) {
+ write(", ");
+ }
+ emitJsxAttribute(attrs[i]);
+ }
+ write("}");
+ }
+ }
+ // Children
+ if (children) {
+ for (var i = 0; i < children.length; i++) {
+ // Don't emit empty expressions
+ if (children[i].kind === 240 /* JsxExpression */ && !(children[i].expression)) {
+ continue;
+ }
+ // Don't emit empty strings
+ if (children[i].kind === 236 /* JsxText */) {
+ var text = getTextToEmit(children[i]);
+ if (text !== undefined) {
+ write(", \"");
+ write(text);
+ write("\"");
+ }
+ }
+ else {
+ write(", ");
+ emit(children[i]);
+ }
+ }
+ }
+ // Closing paren
+ write(")"); // closes "React.createElement("
+ emitTrailingComments(openingNode);
+ }
+ if (node.kind === 233 /* JsxElement */) {
+ emitJsxElement(node.openingElement, node.children);
+ }
+ else {
+ ts.Debug.assert(node.kind === 234 /* JsxSelfClosingElement */);
+ emitJsxElement(node);
+ }
+ }
+ function jsxEmitPreserve(node) {
+ function emitJsxAttribute(node) {
+ emit(node.name);
+ if (node.initializer) {
+ write("=");
+ emit(node.initializer);
+ }
+ }
+ function emitJsxSpreadAttribute(node) {
+ write("{...");
+ emit(node.expression);
+ write("}");
+ }
+ function emitAttributes(attribs) {
+ for (var i = 0, n = attribs.length; i < n; i++) {
+ if (i > 0) {
+ write(" ");
+ }
+ if (attribs[i].kind === 239 /* JsxSpreadAttribute */) {
+ emitJsxSpreadAttribute(attribs[i]);
+ }
+ else {
+ ts.Debug.assert(attribs[i].kind === 238 /* JsxAttribute */);
+ emitJsxAttribute(attribs[i]);
+ }
+ }
+ }
+ function emitJsxOpeningOrSelfClosingElement(node) {
+ write("<");
+ emit(node.tagName);
+ if (node.attributes.length > 0 || (node.kind === 234 /* JsxSelfClosingElement */)) {
+ write(" ");
+ }
+ emitAttributes(node.attributes);
+ if (node.kind === 234 /* JsxSelfClosingElement */) {
+ write("/>");
+ }
+ else {
+ write(">");
+ }
+ }
+ function emitJsxClosingElement(node) {
+ write("</");
+ emit(node.tagName);
+ write(">");
+ }
+ function emitJsxElement(node) {
+ emitJsxOpeningOrSelfClosingElement(node.openingElement);
+ for (var i = 0, n = node.children.length; i < n; i++) {
+ emit(node.children[i]);
+ }
+ emitJsxClosingElement(node.closingElement);
+ }
+ if (node.kind === 233 /* JsxElement */) {
+ emitJsxElement(node);
+ }
+ else {
+ ts.Debug.assert(node.kind === 234 /* JsxSelfClosingElement */);
+ emitJsxOpeningOrSelfClosingElement(node);
+ }
+ }
+ // This function specifically handles numeric/string literals for enum and accessor 'identifiers'.
+ // In a sense, it does not actually emit identifiers as much as it declares a name for a specific property.
+ // For example, this is utilized when feeding in a result to Object.defineProperty.
+ function emitExpressionForPropertyName(node) {
+ ts.Debug.assert(node.kind !== 163 /* BindingElement */);
+ if (node.kind === 9 /* StringLiteral */) {
+ emitLiteral(node);
+ }
+ else if (node.kind === 136 /* ComputedPropertyName */) {
+ // if this is a decorated computed property, we will need to capture the result
+ // of the property expression so that we can apply decorators later. This is to ensure
+ // we don't introduce unintended side effects:
+ //
+ // class C {
+ // [_a = x]() { }
+ // }
+ //
+ // The emit for the decorated computed property decorator is:
+ //
+ // __decorate([dec], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a));
+ //
+ if (ts.nodeIsDecorated(node.parent)) {
+ if (!computedPropertyNamesToGeneratedNames) {
+ computedPropertyNamesToGeneratedNames = [];
+ }
+ var generatedName = computedPropertyNamesToGeneratedNames[ts.getNodeId(node)];
+ if (generatedName) {
+ // we have already generated a variable for this node, write that value instead.
+ write(generatedName);
+ return;
+ }
+ generatedName = createAndRecordTempVariable(0 /* Auto */).text;
+ computedPropertyNamesToGeneratedNames[ts.getNodeId(node)] = generatedName;
+ write(generatedName);
+ write(" = ");
+ }
+ emit(node.expression);
+ }
+ else {
+ write("\"");
+ if (node.kind === 8 /* NumericLiteral */) {
+ write(node.text);
+ }
+ else {
+ writeTextOfNode(currentSourceFile, node);
+ }
+ write("\"");
+ }
+ }
+ function isExpressionIdentifier(node) {
+ var parent = node.parent;
+ switch (parent.kind) {
+ case 164 /* ArrayLiteralExpression */:
+ case 189 /* AsExpression */:
+ case 181 /* BinaryExpression */:
+ case 168 /* CallExpression */:
+ case 241 /* CaseClause */:
+ case 136 /* ComputedPropertyName */:
+ case 182 /* ConditionalExpression */:
+ case 139 /* Decorator */:
+ case 175 /* DeleteExpression */:
+ case 197 /* DoStatement */:
+ case 167 /* ElementAccessExpression */:
+ case 227 /* ExportAssignment */:
+ case 195 /* ExpressionStatement */:
+ case 188 /* ExpressionWithTypeArguments */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 196 /* IfStatement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 235 /* JsxOpeningElement */:
+ case 239 /* JsxSpreadAttribute */:
+ case 240 /* JsxExpression */:
+ case 169 /* NewExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 180 /* PostfixUnaryExpression */:
+ case 179 /* PrefixUnaryExpression */:
+ case 204 /* ReturnStatement */:
+ case 246 /* ShorthandPropertyAssignment */:
+ case 185 /* SpreadElementExpression */:
+ case 206 /* SwitchStatement */:
+ case 170 /* TaggedTemplateExpression */:
+ case 190 /* TemplateSpan */:
+ case 208 /* ThrowStatement */:
+ case 171 /* TypeAssertionExpression */:
+ case 176 /* TypeOfExpression */:
+ case 177 /* VoidExpression */:
+ case 198 /* WhileStatement */:
+ case 205 /* WithStatement */:
+ case 184 /* YieldExpression */:
+ return true;
+ case 163 /* BindingElement */:
+ case 247 /* EnumMember */:
+ case 138 /* Parameter */:
+ case 245 /* PropertyAssignment */:
+ case 141 /* PropertyDeclaration */:
+ case 211 /* VariableDeclaration */:
+ return parent.initializer === node;
+ case 166 /* PropertyAccessExpression */:
+ return parent.expression === node;
+ case 174 /* ArrowFunction */:
+ case 173 /* FunctionExpression */:
+ return parent.body === node;
+ case 221 /* ImportEqualsDeclaration */:
+ return parent.moduleReference === node;
+ case 135 /* QualifiedName */:
+ return parent.left === node;
+ }
+ return false;
+ }
+ function emitExpressionIdentifier(node) {
+ if (resolver.getNodeCheckFlags(node) & 2048 /* LexicalArguments */) {
+ write("_arguments");
+ return;
+ }
+ var container = resolver.getReferencedExportContainer(node);
+ if (container) {
+ if (container.kind === 248 /* SourceFile */) {
+ // Identifier references module export
+ if (modulekind !== 5 /* ES6 */ && modulekind !== 4 /* System */) {
+ write("exports.");
+ }
+ }
+ else {
+ // Identifier references namespace export
+ write(getGeneratedNameForNode(container));
+ write(".");
+ }
+ }
+ else {
+ if (modulekind !== 5 /* ES6 */) {
+ var declaration = resolver.getReferencedImportDeclaration(node);
+ if (declaration) {
+ if (declaration.kind === 223 /* ImportClause */) {
+ // Identifier references default import
+ write(getGeneratedNameForNode(declaration.parent));
+ write(languageVersion === 0 /* ES3 */ ? "[\"default\"]" : ".default");
+ return;
+ }
+ else if (declaration.kind === 226 /* ImportSpecifier */) {
+ // Identifier references named import
+ write(getGeneratedNameForNode(declaration.parent.parent.parent));
+ var name_23 = declaration.propertyName || declaration.name;
+ var identifier = ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, name_23);
+ if (languageVersion === 0 /* ES3 */ && identifier === "default") {
+ write("[\"default\"]");
+ }
+ else {
+ write(".");
+ write(identifier);
+ }
+ return;
+ }
+ }
+ }
+ if (languageVersion !== 2 /* ES6 */) {
+ var declaration = resolver.getReferencedNestedRedeclaration(node);
+ if (declaration) {
+ write(getGeneratedNameForNode(declaration.name));
+ return;
+ }
+ }
+ }
+ if (ts.nodeIsSynthesized(node)) {
+ write(node.text);
+ }
+ else {
+ writeTextOfNode(currentSourceFile, node);
+ }
+ }
+ function isNameOfNestedRedeclaration(node) {
+ if (languageVersion < 2 /* ES6 */) {
+ var parent_6 = node.parent;
+ switch (parent_6.kind) {
+ case 163 /* BindingElement */:
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 211 /* VariableDeclaration */:
+ return parent_6.name === node && resolver.isNestedRedeclaration(parent_6);
+ }
+ }
+ return false;
+ }
+ function emitIdentifier(node) {
+ if (!node.parent) {
+ write(node.text);
+ }
+ else if (isExpressionIdentifier(node)) {
+ emitExpressionIdentifier(node);
+ }
+ else if (isNameOfNestedRedeclaration(node)) {
+ write(getGeneratedNameForNode(node));
+ }
+ else if (ts.nodeIsSynthesized(node)) {
+ write(node.text);
+ }
+ else {
+ writeTextOfNode(currentSourceFile, node);
+ }
+ }
+ function emitThis(node) {
+ if (resolver.getNodeCheckFlags(node) & 2 /* LexicalThis */) {
+ write("_this");
+ }
+ else {
+ write("this");
+ }
+ }
+ function emitSuper(node) {
+ if (languageVersion >= 2 /* ES6 */) {
+ write("super");
+ }
+ else {
+ var flags = resolver.getNodeCheckFlags(node);
+ if (flags & 256 /* SuperInstance */) {
+ write("_super.prototype");
+ }
+ else {
+ write("_super");
+ }
+ }
+ }
+ function emitObjectBindingPattern(node) {
+ write("{ ");
+ var elements = node.elements;
+ emitList(elements, 0, elements.length, /*multiLine*/ false, /*trailingComma*/ elements.hasTrailingComma);
+ write(" }");
+ }
+ function emitArrayBindingPattern(node) {
+ write("[");
+ var elements = node.elements;
+ emitList(elements, 0, elements.length, /*multiLine*/ false, /*trailingComma*/ elements.hasTrailingComma);
+ write("]");
+ }
+ function emitBindingElement(node) {
+ if (node.propertyName) {
+ emit(node.propertyName);
+ write(": ");
+ }
+ if (node.dotDotDotToken) {
+ write("...");
+ }
+ if (ts.isBindingPattern(node.name)) {
+ emit(node.name);
+ }
+ else {
+ emitModuleMemberName(node);
+ }
+ emitOptional(" = ", node.initializer);
+ }
+ function emitSpreadElementExpression(node) {
+ write("...");
+ emit(node.expression);
+ }
+ function emitYieldExpression(node) {
+ write(ts.tokenToString(114 /* YieldKeyword */));
+ if (node.asteriskToken) {
+ write("*");
+ }
+ if (node.expression) {
+ write(" ");
+ emit(node.expression);
+ }
+ }
+ function emitAwaitExpression(node) {
+ var needsParenthesis = needsParenthesisForAwaitExpressionAsYield(node);
+ if (needsParenthesis) {
+ write("(");
+ }
+ write(ts.tokenToString(114 /* YieldKeyword */));
+ write(" ");
+ emit(node.expression);
+ if (needsParenthesis) {
+ write(")");
+ }
+ }
+ function needsParenthesisForAwaitExpressionAsYield(node) {
+ if (node.parent.kind === 181 /* BinaryExpression */ && !ts.isAssignmentOperator(node.parent.operatorToken.kind)) {
+ return true;
+ }
+ else if (node.parent.kind === 182 /* ConditionalExpression */ && node.parent.condition === node) {
+ return true;
+ }
+ return false;
+ }
+ function needsParenthesisForPropertyAccessOrInvocation(node) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ case 164 /* ArrayLiteralExpression */:
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ case 168 /* CallExpression */:
+ case 172 /* ParenthesizedExpression */:
+ // This list is not exhaustive and only includes those cases that are relevant
+ // to the check in emitArrayLiteral. More cases can be added as needed.
+ return false;
+ }
+ return true;
+ }
+ function emitListWithSpread(elements, needsUniqueCopy, multiLine, trailingComma, useConcat) {
+ var pos = 0;
+ var group = 0;
+ var length = elements.length;
+ while (pos < length) {
+ // Emit using the pattern <group0>.concat(<group1>, <group2>, ...)
+ if (group === 1 && useConcat) {
+ write(".concat(");
+ }
+ else if (group > 0) {
+ write(", ");
+ }
+ var e = elements[pos];
+ if (e.kind === 185 /* SpreadElementExpression */) {
+ e = e.expression;
+ emitParenthesizedIf(e, /*parenthesized*/ group === 0 && needsParenthesisForPropertyAccessOrInvocation(e));
+ pos++;
+ if (pos === length && group === 0 && needsUniqueCopy && e.kind !== 164 /* ArrayLiteralExpression */) {
+ write(".slice()");
+ }
+ }
+ else {
+ var i = pos;
+ while (i < length && elements[i].kind !== 185 /* SpreadElementExpression */) {
+ i++;
+ }
+ write("[");
+ if (multiLine) {
+ increaseIndent();
+ }
+ emitList(elements, pos, i - pos, multiLine, trailingComma && i === length);
+ if (multiLine) {
+ decreaseIndent();
+ }
+ write("]");
+ pos = i;
+ }
+ group++;
+ }
+ if (group > 1) {
+ if (useConcat) {
+ write(")");
+ }
+ }
+ }
+ function isSpreadElementExpression(node) {
+ return node.kind === 185 /* SpreadElementExpression */;
+ }
+ function emitArrayLiteral(node) {
+ var elements = node.elements;
+ if (elements.length === 0) {
+ write("[]");
+ }
+ else if (languageVersion >= 2 /* ES6 */ || !ts.forEach(elements, isSpreadElementExpression)) {
+ write("[");
+ emitLinePreservingList(node, node.elements, elements.hasTrailingComma, /*spacesBetweenBraces:*/ false);
+ write("]");
+ }
+ else {
+ emitListWithSpread(elements, /*needsUniqueCopy*/ true, /*multiLine*/ (node.flags & 2048 /* MultiLine */) !== 0,
+ /*trailingComma*/ elements.hasTrailingComma, /*useConcat*/ true);
+ }
+ }
+ function emitObjectLiteralBody(node, numElements) {
+ if (numElements === 0) {
+ write("{}");
+ return;
+ }
+ write("{");
+ if (numElements > 0) {
+ var properties = node.properties;
+ // If we are not doing a downlevel transformation for object literals,
+ // then try to preserve the original shape of the object literal.
+ // Otherwise just try to preserve the formatting.
+ if (numElements === properties.length) {
+ emitLinePreservingList(node, properties, /* allowTrailingComma */ languageVersion >= 1 /* ES5 */, /* spacesBetweenBraces */ true);
+ }
+ else {
+ var multiLine = (node.flags & 2048 /* MultiLine */) !== 0;
+ if (!multiLine) {
+ write(" ");
+ }
+ else {
+ increaseIndent();
+ }
+ emitList(properties, 0, numElements, /*multiLine*/ multiLine, /*trailingComma*/ false);
+ if (!multiLine) {
+ write(" ");
+ }
+ else {
+ decreaseIndent();
+ }
+ }
+ }
+ write("}");
+ }
+ function emitDownlevelObjectLiteralWithComputedProperties(node, firstComputedPropertyIndex) {
+ var multiLine = (node.flags & 2048 /* MultiLine */) !== 0;
+ var properties = node.properties;
+ write("(");
+ if (multiLine) {
+ increaseIndent();
+ }
+ // For computed properties, we need to create a unique handle to the object
+ // literal so we can modify it without risking internal assignments tainting the object.
+ var tempVar = createAndRecordTempVariable(0 /* Auto */);
+ // Write out the first non-computed properties
+ // (or all properties if none of them are computed),
+ // then emit the rest through indexing on the temp variable.
+ emit(tempVar);
+ write(" = ");
+ emitObjectLiteralBody(node, firstComputedPropertyIndex);
+ for (var i = firstComputedPropertyIndex, n = properties.length; i < n; i++) {
+ writeComma();
+ var property = properties[i];
+ emitStart(property);
+ if (property.kind === 145 /* GetAccessor */ || property.kind === 146 /* SetAccessor */) {
+ // TODO (drosen): Reconcile with 'emitMemberFunctions'.
+ var accessors = ts.getAllAccessorDeclarations(node.properties, property);
+ if (property !== accessors.firstAccessor) {
+ continue;
+ }
+ write("Object.defineProperty(");
+ emit(tempVar);
+ write(", ");
+ emitStart(node.name);
+ emitExpressionForPropertyName(property.name);
+ emitEnd(property.name);
+ write(", {");
+ increaseIndent();
+ if (accessors.getAccessor) {
+ writeLine();
+ emitLeadingComments(accessors.getAccessor);
+ write("get: ");
+ emitStart(accessors.getAccessor);
+ write("function ");
+ emitSignatureAndBody(accessors.getAccessor);
+ emitEnd(accessors.getAccessor);
+ emitTrailingComments(accessors.getAccessor);
+ write(",");
+ }
+ if (accessors.setAccessor) {
+ writeLine();
+ emitLeadingComments(accessors.setAccessor);
+ write("set: ");
+ emitStart(accessors.setAccessor);
+ write("function ");
+ emitSignatureAndBody(accessors.setAccessor);
+ emitEnd(accessors.setAccessor);
+ emitTrailingComments(accessors.setAccessor);
+ write(",");
+ }
+ writeLine();
+ write("enumerable: true,");
+ writeLine();
+ write("configurable: true");
+ decreaseIndent();
+ writeLine();
+ write("})");
+ emitEnd(property);
+ }
+ else {
+ emitLeadingComments(property);
+ emitStart(property.name);
+ emit(tempVar);
+ emitMemberAccessForPropertyName(property.name);
+ emitEnd(property.name);
+ write(" = ");
+ if (property.kind === 245 /* PropertyAssignment */) {
+ emit(property.initializer);
+ }
+ else if (property.kind === 246 /* ShorthandPropertyAssignment */) {
+ emitExpressionIdentifier(property.name);
+ }
+ else if (property.kind === 143 /* MethodDeclaration */) {
+ emitFunctionDeclaration(property);
+ }
+ else {
+ ts.Debug.fail("ObjectLiteralElement type not accounted for: " + property.kind);
+ }
+ }
+ emitEnd(property);
+ }
+ writeComma();
+ emit(tempVar);
+ if (multiLine) {
+ decreaseIndent();
+ writeLine();
+ }
+ write(")");
+ function writeComma() {
+ if (multiLine) {
+ write(",");
+ writeLine();
+ }
+ else {
+ write(", ");
+ }
+ }
+ }
+ function emitObjectLiteral(node) {
+ var properties = node.properties;
+ if (languageVersion < 2 /* ES6 */) {
+ var numProperties = properties.length;
+ // Find the first computed property.
+ // Everything until that point can be emitted as part of the initial object literal.
+ var numInitialNonComputedProperties = numProperties;
+ for (var i = 0, n = properties.length; i < n; i++) {
+ if (properties[i].name.kind === 136 /* ComputedPropertyName */) {
+ numInitialNonComputedProperties = i;
+ break;
+ }
+ }
+ var hasComputedProperty = numInitialNonComputedProperties !== properties.length;
+ if (hasComputedProperty) {
+ emitDownlevelObjectLiteralWithComputedProperties(node, numInitialNonComputedProperties);
+ return;
+ }
+ }
+ // Ordinary case: either the object has no computed properties
+ // or we're compiling with an ES6+ target.
+ emitObjectLiteralBody(node, properties.length);
+ }
+ function createBinaryExpression(left, operator, right, startsOnNewLine) {
+ var result = ts.createSynthesizedNode(181 /* BinaryExpression */, startsOnNewLine);
+ result.operatorToken = ts.createSynthesizedNode(operator);
+ result.left = left;
+ result.right = right;
+ return result;
+ }
+ function createPropertyAccessExpression(expression, name) {
+ var result = ts.createSynthesizedNode(166 /* PropertyAccessExpression */);
+ result.expression = parenthesizeForAccess(expression);
+ result.dotToken = ts.createSynthesizedNode(21 /* DotToken */);
+ result.name = name;
+ return result;
+ }
+ function createElementAccessExpression(expression, argumentExpression) {
+ var result = ts.createSynthesizedNode(167 /* ElementAccessExpression */);
+ result.expression = parenthesizeForAccess(expression);
+ result.argumentExpression = argumentExpression;
+ return result;
+ }
+ function parenthesizeForAccess(expr) {
+ // When diagnosing whether the expression needs parentheses, the decision should be based
+ // on the innermost expression in a chain of nested type assertions.
+ while (expr.kind === 171 /* TypeAssertionExpression */ || expr.kind === 189 /* AsExpression */) {
+ expr = expr.expression;
+ }
+ // isLeftHandSideExpression is almost the correct criterion for when it is not necessary
+ // to parenthesize the expression before a dot. The known exceptions are:
+ //
+ // NewExpression:
+ // new C.x -> not the same as (new C).x
+ // NumberLiteral
+ // 1.x -> not the same as (1).x
+ //
+ if (ts.isLeftHandSideExpression(expr) &&
+ expr.kind !== 169 /* NewExpression */ &&
+ expr.kind !== 8 /* NumericLiteral */) {
+ return expr;
+ }
+ var node = ts.createSynthesizedNode(172 /* ParenthesizedExpression */);
+ node.expression = expr;
+ return node;
+ }
+ function emitComputedPropertyName(node) {
+ write("[");
+ emitExpressionForPropertyName(node);
+ write("]");
+ }
+ function emitMethod(node) {
+ if (languageVersion >= 2 /* ES6 */ && node.asteriskToken) {
+ write("*");
+ }
+ emit(node.name);
+ if (languageVersion < 2 /* ES6 */) {
+ write(": function ");
+ }
+ emitSignatureAndBody(node);
+ }
+ function emitPropertyAssignment(node) {
+ emit(node.name);
+ write(": ");
+ // This is to ensure that we emit comment in the following case:
+ // For example:
+ // obj = {
+ // id: /*comment1*/ ()=>void
+ // }
+ // "comment1" is not considered to be leading comment for node.initializer
+ // but rather a trailing comment on the previous node.
+ emitTrailingCommentsOfPosition(node.initializer.pos);
+ emit(node.initializer);
+ }
+ // Return true if identifier resolves to an exported member of a namespace
+ function isNamespaceExportReference(node) {
+ var container = resolver.getReferencedExportContainer(node);
+ return container && container.kind !== 248 /* SourceFile */;
+ }
+ function emitShorthandPropertyAssignment(node) {
+ // The name property of a short-hand property assignment is considered an expression position, so here
+ // we manually emit the identifier to avoid rewriting.
+ writeTextOfNode(currentSourceFile, node.name);
+ // If emitting pre-ES6 code, or if the name requires rewriting when resolved as an expression identifier,
+ // we emit a normal property assignment. For example:
+ // module m {
+ // export let y;
+ // }
+ // module m {
+ // let obj = { y };
+ // }
+ // Here we need to emit obj = { y : m.y } regardless of the output target.
+ if (languageVersion < 2 /* ES6 */ || isNamespaceExportReference(node.name)) {
+ // Emit identifier as an identifier
+ write(": ");
+ emit(node.name);
+ }
+ if (languageVersion >= 2 /* ES6 */ && node.objectAssignmentInitializer) {
+ write(" = ");
+ emit(node.objectAssignmentInitializer);
+ }
+ }
+ function tryEmitConstantValue(node) {
+ var constantValue = tryGetConstEnumValue(node);
+ if (constantValue !== undefined) {
+ write(constantValue.toString());
+ if (!compilerOptions.removeComments) {
+ var propertyName = node.kind === 166 /* PropertyAccessExpression */ ? ts.declarationNameToString(node.name) : ts.getTextOfNode(node.argumentExpression);
+ write(" /* " + propertyName + " */");
+ }
+ return true;
+ }
+ return false;
+ }
+ function tryGetConstEnumValue(node) {
+ if (compilerOptions.isolatedModules) {
+ return undefined;
+ }
+ return node.kind === 166 /* PropertyAccessExpression */ || node.kind === 167 /* ElementAccessExpression */
+ ? resolver.getConstantValue(node)
+ : undefined;
+ }
+ // Returns 'true' if the code was actually indented, false otherwise.
+ // If the code is not indented, an optional valueToWriteWhenNotIndenting will be
+ // emitted instead.
+ function indentIfOnDifferentLines(parent, node1, node2, valueToWriteWhenNotIndenting) {
+ var realNodesAreOnDifferentLines = !ts.nodeIsSynthesized(parent) && !nodeEndIsOnSameLineAsNodeStart(node1, node2);
+ // Always use a newline for synthesized code if the synthesizer desires it.
+ var synthesizedNodeIsOnDifferentLine = synthesizedNodeStartsOnNewLine(node2);
+ if (realNodesAreOnDifferentLines || synthesizedNodeIsOnDifferentLine) {
+ increaseIndent();
+ writeLine();
+ return true;
+ }
+ else {
+ if (valueToWriteWhenNotIndenting) {
+ write(valueToWriteWhenNotIndenting);
+ }
+ return false;
+ }
+ }
+ function emitPropertyAccess(node) {
+ if (tryEmitConstantValue(node)) {
+ return;
+ }
+ emit(node.expression);
+ var indentedBeforeDot = indentIfOnDifferentLines(node, node.expression, node.dotToken);
+ // 1 .toString is a valid property access, emit a space after the literal
+ // Also emit a space if expression is a integer const enum value - it will appear in generated code as numeric literal
+ var shouldEmitSpace;
+ if (!indentedBeforeDot) {
+ if (node.expression.kind === 8 /* NumericLiteral */) {
+ // check if numeric literal was originally written with a dot
+ var text = ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, node.expression);
+ shouldEmitSpace = text.indexOf(ts.tokenToString(21 /* DotToken */)) < 0;
+ }
+ else {
+ // check if constant enum value is integer
+ var constantValue = tryGetConstEnumValue(node.expression);
+ // isFinite handles cases when constantValue is undefined
+ shouldEmitSpace = isFinite(constantValue) && Math.floor(constantValue) === constantValue;
+ }
+ }
+ if (shouldEmitSpace) {
+ write(" .");
+ }
+ else {
+ write(".");
+ }
+ var indentedAfterDot = indentIfOnDifferentLines(node, node.dotToken, node.name);
+ emit(node.name);
+ decreaseIndentIf(indentedBeforeDot, indentedAfterDot);
+ }
+ function emitQualifiedName(node) {
+ emit(node.left);
+ write(".");
+ emit(node.right);
+ }
+ function emitQualifiedNameAsExpression(node, useFallback) {
+ if (node.left.kind === 69 /* Identifier */) {
+ emitEntityNameAsExpression(node.left, useFallback);
+ }
+ else if (useFallback) {
+ var temp = createAndRecordTempVariable(0 /* Auto */);
+ write("(");
+ emitNodeWithoutSourceMap(temp);
+ write(" = ");
+ emitEntityNameAsExpression(node.left, /*useFallback*/ true);
+ write(") && ");
+ emitNodeWithoutSourceMap(temp);
+ }
+ else {
+ emitEntityNameAsExpression(node.left, /*useFallback*/ false);
+ }
+ write(".");
+ emit(node.right);
+ }
+ function emitEntityNameAsExpression(node, useFallback) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ if (useFallback) {
+ write("typeof ");
+ emitExpressionIdentifier(node);
+ write(" !== 'undefined' && ");
+ }
+ emitExpressionIdentifier(node);
+ break;
+ case 135 /* QualifiedName */:
+ emitQualifiedNameAsExpression(node, useFallback);
+ break;
+ }
+ }
+ function emitIndexedAccess(node) {
+ if (tryEmitConstantValue(node)) {
+ return;
+ }
+ emit(node.expression);
+ write("[");
+ emit(node.argumentExpression);
+ write("]");
+ }
+ function hasSpreadElement(elements) {
+ return ts.forEach(elements, function (e) { return e.kind === 185 /* SpreadElementExpression */; });
+ }
+ function skipParentheses(node) {
+ while (node.kind === 172 /* ParenthesizedExpression */ || node.kind === 171 /* TypeAssertionExpression */ || node.kind === 189 /* AsExpression */) {
+ node = node.expression;
+ }
+ return node;
+ }
+ function emitCallTarget(node) {
+ if (node.kind === 69 /* Identifier */ || node.kind === 97 /* ThisKeyword */ || node.kind === 95 /* SuperKeyword */) {
+ emit(node);
+ return node;
+ }
+ var temp = createAndRecordTempVariable(0 /* Auto */);
+ write("(");
+ emit(temp);
+ write(" = ");
+ emit(node);
+ write(")");
+ return temp;
+ }
+ function emitCallWithSpread(node) {
+ var target;
+ var expr = skipParentheses(node.expression);
+ if (expr.kind === 166 /* PropertyAccessExpression */) {
+ // Target will be emitted as "this" argument
+ target = emitCallTarget(expr.expression);
+ write(".");
+ emit(expr.name);
+ }
+ else if (expr.kind === 167 /* ElementAccessExpression */) {
+ // Target will be emitted as "this" argument
+ target = emitCallTarget(expr.expression);
+ write("[");
+ emit(expr.argumentExpression);
+ write("]");
+ }
+ else if (expr.kind === 95 /* SuperKeyword */) {
+ target = expr;
+ write("_super");
+ }
+ else {
+ emit(node.expression);
+ }
+ write(".apply(");
+ if (target) {
+ if (target.kind === 95 /* SuperKeyword */) {
+ // Calls of form super(...) and super.foo(...)
+ emitThis(target);
+ }
+ else {
+ // Calls of form obj.foo(...)
+ emit(target);
+ }
+ }
+ else {
+ // Calls of form foo(...)
+ write("void 0");
+ }
+ write(", ");
+ emitListWithSpread(node.arguments, /*needsUniqueCopy*/ false, /*multiLine*/ false, /*trailingComma*/ false, /*useConcat*/ true);
+ write(")");
+ }
+ function emitCallExpression(node) {
+ if (languageVersion < 2 /* ES6 */ && hasSpreadElement(node.arguments)) {
+ emitCallWithSpread(node);
+ return;
+ }
+ var superCall = false;
+ if (node.expression.kind === 95 /* SuperKeyword */) {
+ emitSuper(node.expression);
+ superCall = true;
+ }
+ else {
+ emit(node.expression);
+ superCall = node.expression.kind === 166 /* PropertyAccessExpression */ && node.expression.expression.kind === 95 /* SuperKeyword */;
+ }
+ if (superCall && languageVersion < 2 /* ES6 */) {
+ write(".call(");
+ emitThis(node.expression);
+ if (node.arguments.length) {
+ write(", ");
+ emitCommaList(node.arguments);
+ }
+ write(")");
+ }
+ else {
+ write("(");
+ emitCommaList(node.arguments);
+ write(")");
+ }
+ }
+ function emitNewExpression(node) {
+ write("new ");
+ // Spread operator logic is supported in new expressions in ES5 using a combination
+ // of Function.prototype.bind() and Function.prototype.apply().
+ //
+ // Example:
+ //
+ // var args = [1, 2, 3, 4, 5];
+ // new Array(...args);
+ //
+ // is compiled into the following ES5:
+ //
+ // var args = [1, 2, 3, 4, 5];
+ // new (Array.bind.apply(Array, [void 0].concat(args)));
+ //
+ // The 'thisArg' to 'bind' is ignored when invoking the result of 'bind' with 'new',
+ // Thus, we set it to undefined ('void 0').
+ if (languageVersion === 1 /* ES5 */ &&
+ node.arguments &&
+ hasSpreadElement(node.arguments)) {
+ write("(");
+ var target = emitCallTarget(node.expression);
+ write(".bind.apply(");
+ emit(target);
+ write(", [void 0].concat(");
+ emitListWithSpread(node.arguments, /*needsUniqueCopy*/ false, /*multiline*/ false, /*trailingComma*/ false, /*useConcat*/ false);
+ write(")))");
+ write("()");
+ }
+ else {
+ emit(node.expression);
+ if (node.arguments) {
+ write("(");
+ emitCommaList(node.arguments);
+ write(")");
+ }
+ }
+ }
+ function emitTaggedTemplateExpression(node) {
+ if (languageVersion >= 2 /* ES6 */) {
+ emit(node.tag);
+ write(" ");
+ emit(node.template);
+ }
+ else {
+ emitDownlevelTaggedTemplate(node);
+ }
+ }
+ function emitParenExpression(node) {
+ // If the node is synthesized, it means the emitter put the parentheses there,
+ // not the user. If we didn't want them, the emitter would not have put them
+ // there.
+ if (!ts.nodeIsSynthesized(node) && node.parent.kind !== 174 /* ArrowFunction */) {
+ if (node.expression.kind === 171 /* TypeAssertionExpression */ || node.expression.kind === 189 /* AsExpression */) {
+ var operand = node.expression.expression;
+ // Make sure we consider all nested cast expressions, e.g.:
+ // (<any><number><any>-A).x;
+ while (operand.kind === 171 /* TypeAssertionExpression */ || operand.kind === 189 /* AsExpression */) {
+ operand = operand.expression;
+ }
+ // We have an expression of the form: (<Type>SubExpr)
+ // Emitting this as (SubExpr) is really not desirable. We would like to emit the subexpr as is.
+ // Omitting the parentheses, however, could cause change in the semantics of the generated
+ // code if the casted expression has a lower precedence than the rest of the expression, e.g.:
+ // (<any>new A).foo should be emitted as (new A).foo and not new A.foo
+ // (<any>typeof A).toString() should be emitted as (typeof A).toString() and not typeof A.toString()
+ // new (<any>A()) should be emitted as new (A()) and not new A()
+ // (<any>function foo() { })() should be emitted as an IIF (function foo(){})() and not declaration function foo(){} ()
+ if (operand.kind !== 179 /* PrefixUnaryExpression */ &&
+ operand.kind !== 177 /* VoidExpression */ &&
+ operand.kind !== 176 /* TypeOfExpression */ &&
+ operand.kind !== 175 /* DeleteExpression */ &&
+ operand.kind !== 180 /* PostfixUnaryExpression */ &&
+ operand.kind !== 169 /* NewExpression */ &&
+ !(operand.kind === 168 /* CallExpression */ && node.parent.kind === 169 /* NewExpression */) &&
+ !(operand.kind === 173 /* FunctionExpression */ && node.parent.kind === 168 /* CallExpression */) &&
+ !(operand.kind === 8 /* NumericLiteral */ && node.parent.kind === 166 /* PropertyAccessExpression */)) {
+ emit(operand);
+ return;
+ }
+ }
+ }
+ write("(");
+ emit(node.expression);
+ write(")");
+ }
+ function emitDeleteExpression(node) {
+ write(ts.tokenToString(78 /* DeleteKeyword */));
+ write(" ");
+ emit(node.expression);
+ }
+ function emitVoidExpression(node) {
+ write(ts.tokenToString(103 /* VoidKeyword */));
+ write(" ");
+ emit(node.expression);
+ }
+ function emitTypeOfExpression(node) {
+ write(ts.tokenToString(101 /* TypeOfKeyword */));
+ write(" ");
+ emit(node.expression);
+ }
+ function isNameOfExportedSourceLevelDeclarationInSystemExternalModule(node) {
+ if (!isCurrentFileSystemExternalModule() || node.kind !== 69 /* Identifier */ || ts.nodeIsSynthesized(node)) {
+ return false;
+ }
+ var isVariableDeclarationOrBindingElement = node.parent && (node.parent.kind === 211 /* VariableDeclaration */ || node.parent.kind === 163 /* BindingElement */);
+ var targetDeclaration = isVariableDeclarationOrBindingElement
+ ? node.parent
+ : resolver.getReferencedValueDeclaration(node);
+ return isSourceFileLevelDeclarationInSystemJsModule(targetDeclaration, /*isExported*/ true);
+ }
+ function emitPrefixUnaryExpression(node) {
+ var exportChanged = isNameOfExportedSourceLevelDeclarationInSystemExternalModule(node.operand);
+ if (exportChanged) {
+ // emit
+ // ++x
+ // as
+ // exports('x', ++x)
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithoutSourceMap(node.operand);
+ write("\", ");
+ }
+ write(ts.tokenToString(node.operator));
+ // In some cases, we need to emit a space between the operator and the operand. One obvious case
+ // is when the operator is an identifier, like delete or typeof. We also need to do this for plus
+ // and minus expressions in certain cases. Specifically, consider the following two cases (parens
+ // are just for clarity of exposition, and not part of the source code):
+ //
+ // (+(+1))
+ // (+(++1))
+ //
+ // We need to emit a space in both cases. In the first case, the absence of a space will make
+ // the resulting expression a prefix increment operation. And in the second, it will make the resulting
+ // expression a prefix increment whose operand is a plus expression - (++(+x))
+ // The same is true of minus of course.
+ if (node.operand.kind === 179 /* PrefixUnaryExpression */) {
+ var operand = node.operand;
+ if (node.operator === 35 /* PlusToken */ && (operand.operator === 35 /* PlusToken */ || operand.operator === 41 /* PlusPlusToken */)) {
+ write(" ");
+ }
+ else if (node.operator === 36 /* MinusToken */ && (operand.operator === 36 /* MinusToken */ || operand.operator === 42 /* MinusMinusToken */)) {
+ write(" ");
+ }
+ }
+ emit(node.operand);
+ if (exportChanged) {
+ write(")");
+ }
+ }
+ function emitPostfixUnaryExpression(node) {
+ var exportChanged = isNameOfExportedSourceLevelDeclarationInSystemExternalModule(node.operand);
+ if (exportChanged) {
+ // export function returns the value that was passes as the second argument
+ // however for postfix unary expressions result value should be the value before modification.
+ // emit 'x++' as '(export('x', ++x) - 1)' and 'x--' as '(export('x', --x) + 1)'
+ write("(" + exportFunctionForFile + "(\"");
+ emitNodeWithoutSourceMap(node.operand);
+ write("\", ");
+ write(ts.tokenToString(node.operator));
+ emit(node.operand);
+ if (node.operator === 41 /* PlusPlusToken */) {
+ write(") - 1)");
+ }
+ else {
+ write(") + 1)");
+ }
+ }
+ else {
+ emit(node.operand);
+ write(ts.tokenToString(node.operator));
+ }
+ }
+ function shouldHoistDeclarationInSystemJsModule(node) {
+ return isSourceFileLevelDeclarationInSystemJsModule(node, /*isExported*/ false);
+ }
+ /*
+ * Checks if given node is a source file level declaration (not nested in module/function).
+ * If 'isExported' is true - then declaration must also be exported.
+ * This function is used in two cases:
+ * - check if node is a exported source file level value to determine
+ * if we should also export the value after its it changed
+ * - check if node is a source level declaration to emit it differently,
+ * i.e non-exported variable statement 'var x = 1' is hoisted so
+ * we we emit variable statement 'var' should be dropped.
+ */
+ function isSourceFileLevelDeclarationInSystemJsModule(node, isExported) {
+ if (!node || languageVersion >= 2 /* ES6 */ || !isCurrentFileSystemExternalModule()) {
+ return false;
+ }
+ var current = node;
+ while (current) {
+ if (current.kind === 248 /* SourceFile */) {
+ return !isExported || ((ts.getCombinedNodeFlags(node) & 1 /* Export */) !== 0);
+ }
+ else if (ts.isFunctionLike(current) || current.kind === 219 /* ModuleBlock */) {
+ return false;
+ }
+ else {
+ current = current.parent;
+ }
+ }
+ }
+ /**
+ * Emit ES7 exponentiation operator downlevel using Math.pow
+ * @param node a binary expression node containing exponentiationOperator (**, **=)
+ */
+ function emitExponentiationOperator(node) {
+ var leftHandSideExpression = node.left;
+ if (node.operatorToken.kind === 60 /* AsteriskAsteriskEqualsToken */) {
+ var synthesizedLHS;
+ var shouldEmitParentheses = false;
+ if (ts.isElementAccessExpression(leftHandSideExpression)) {
+ shouldEmitParentheses = true;
+ write("(");
+ synthesizedLHS = ts.createSynthesizedNode(167 /* ElementAccessExpression */, /*startsOnNewLine*/ false);
+ var identifier = emitTempVariableAssignment(leftHandSideExpression.expression, /*canDefinedTempVariablesInPlaces*/ false, /*shouldEmitCommaBeforeAssignment*/ false);
+ synthesizedLHS.expression = identifier;
+ if (leftHandSideExpression.argumentExpression.kind !== 8 /* NumericLiteral */ &&
+ leftHandSideExpression.argumentExpression.kind !== 9 /* StringLiteral */) {
+ var tempArgumentExpression = createAndRecordTempVariable(268435456 /* _i */);
+ synthesizedLHS.argumentExpression = tempArgumentExpression;
+ emitAssignment(tempArgumentExpression, leftHandSideExpression.argumentExpression, /*shouldEmitCommaBeforeAssignment*/ true);
+ }
+ else {
+ synthesizedLHS.argumentExpression = leftHandSideExpression.argumentExpression;
+ }
+ write(", ");
+ }
+ else if (ts.isPropertyAccessExpression(leftHandSideExpression)) {
+ shouldEmitParentheses = true;
+ write("(");
+ synthesizedLHS = ts.createSynthesizedNode(166 /* PropertyAccessExpression */, /*startsOnNewLine*/ false);
+ var identifier = emitTempVariableAssignment(leftHandSideExpression.expression, /*canDefinedTempVariablesInPlaces*/ false, /*shouldemitCommaBeforeAssignment*/ false);
+ synthesizedLHS.expression = identifier;
+ synthesizedLHS.dotToken = leftHandSideExpression.dotToken;
+ synthesizedLHS.name = leftHandSideExpression.name;
+ write(", ");
+ }
+ emit(synthesizedLHS || leftHandSideExpression);
+ write(" = ");
+ write("Math.pow(");
+ emit(synthesizedLHS || leftHandSideExpression);
+ write(", ");
+ emit(node.right);
+ write(")");
+ if (shouldEmitParentheses) {
+ write(")");
+ }
+ }
+ else {
+ write("Math.pow(");
+ emit(leftHandSideExpression);
+ write(", ");
+ emit(node.right);
+ write(")");
+ }
+ }
+ function emitBinaryExpression(node) {
+ if (languageVersion < 2 /* ES6 */ && node.operatorToken.kind === 56 /* EqualsToken */ &&
+ (node.left.kind === 165 /* ObjectLiteralExpression */ || node.left.kind === 164 /* ArrayLiteralExpression */)) {
+ emitDestructuring(node, node.parent.kind === 195 /* ExpressionStatement */);
+ }
+ else {
+ var exportChanged = node.operatorToken.kind >= 56 /* FirstAssignment */ &&
+ node.operatorToken.kind <= 68 /* LastAssignment */ &&
+ isNameOfExportedSourceLevelDeclarationInSystemExternalModule(node.left);
+ if (exportChanged) {
+ // emit assignment 'x <op> y' as 'exports("x", x <op> y)'
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithoutSourceMap(node.left);
+ write("\", ");
+ }
+ if (node.operatorToken.kind === 38 /* AsteriskAsteriskToken */ || node.operatorToken.kind === 60 /* AsteriskAsteriskEqualsToken */) {
+ // Downleveled emit exponentiation operator using Math.pow
+ emitExponentiationOperator(node);
+ }
+ else {
+ emit(node.left);
+ // Add indentation before emit the operator if the operator is on different line
+ // For example:
+ // 3
+ // + 2;
+ // emitted as
+ // 3
+ // + 2;
+ var indentedBeforeOperator = indentIfOnDifferentLines(node, node.left, node.operatorToken, node.operatorToken.kind !== 24 /* CommaToken */ ? " " : undefined);
+ write(ts.tokenToString(node.operatorToken.kind));
+ var indentedAfterOperator = indentIfOnDifferentLines(node, node.operatorToken, node.right, " ");
+ emit(node.right);
+ decreaseIndentIf(indentedBeforeOperator, indentedAfterOperator);
+ }
+ if (exportChanged) {
+ write(")");
+ }
+ }
+ }
+ function synthesizedNodeStartsOnNewLine(node) {
+ return ts.nodeIsSynthesized(node) && node.startsOnNewLine;
+ }
+ function emitConditionalExpression(node) {
+ emit(node.condition);
+ var indentedBeforeQuestion = indentIfOnDifferentLines(node, node.condition, node.questionToken, " ");
+ write("?");
+ var indentedAfterQuestion = indentIfOnDifferentLines(node, node.questionToken, node.whenTrue, " ");
+ emit(node.whenTrue);
+ decreaseIndentIf(indentedBeforeQuestion, indentedAfterQuestion);
+ var indentedBeforeColon = indentIfOnDifferentLines(node, node.whenTrue, node.colonToken, " ");
+ write(":");
+ var indentedAfterColon = indentIfOnDifferentLines(node, node.colonToken, node.whenFalse, " ");
+ emit(node.whenFalse);
+ decreaseIndentIf(indentedBeforeColon, indentedAfterColon);
+ }
+ // Helper function to decrease the indent if we previously indented. Allows multiple
+ // previous indent values to be considered at a time. This also allows caller to just
+ // call this once, passing in all their appropriate indent values, instead of needing
+ // to call this helper function multiple times.
+ function decreaseIndentIf(value1, value2) {
+ if (value1) {
+ decreaseIndent();
+ }
+ if (value2) {
+ decreaseIndent();
+ }
+ }
+ function isSingleLineEmptyBlock(node) {
+ if (node && node.kind === 192 /* Block */) {
+ var block = node;
+ return block.statements.length === 0 && nodeEndIsOnSameLineAsNodeStart(block, block);
+ }
+ }
+ function emitBlock(node) {
+ if (isSingleLineEmptyBlock(node)) {
+ emitToken(15 /* OpenBraceToken */, node.pos);
+ write(" ");
+ emitToken(16 /* CloseBraceToken */, node.statements.end);
+ return;
+ }
+ emitToken(15 /* OpenBraceToken */, node.pos);
+ increaseIndent();
+ scopeEmitStart(node.parent);
+ if (node.kind === 219 /* ModuleBlock */) {
+ ts.Debug.assert(node.parent.kind === 218 /* ModuleDeclaration */);
+ emitCaptureThisForNodeIfNecessary(node.parent);
+ }
+ emitLines(node.statements);
+ if (node.kind === 219 /* ModuleBlock */) {
+ emitTempDeclarations(/*newLine*/ true);
+ }
+ decreaseIndent();
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.statements.end);
+ scopeEmitEnd();
+ }
+ function emitEmbeddedStatement(node) {
+ if (node.kind === 192 /* Block */) {
+ write(" ");
+ emit(node);
+ }
+ else {
+ increaseIndent();
+ writeLine();
+ emit(node);
+ decreaseIndent();
+ }
+ }
+ function emitExpressionStatement(node) {
+ emitParenthesizedIf(node.expression, /*parenthesized*/ node.expression.kind === 174 /* ArrowFunction */);
+ write(";");
+ }
+ function emitIfStatement(node) {
+ var endPos = emitToken(88 /* IfKeyword */, node.pos);
+ write(" ");
+ endPos = emitToken(17 /* OpenParenToken */, endPos);
+ emit(node.expression);
+ emitToken(18 /* CloseParenToken */, node.expression.end);
+ emitEmbeddedStatement(node.thenStatement);
+ if (node.elseStatement) {
+ writeLine();
+ emitToken(80 /* ElseKeyword */, node.thenStatement.end);
+ if (node.elseStatement.kind === 196 /* IfStatement */) {
+ write(" ");
+ emit(node.elseStatement);
+ }
+ else {
+ emitEmbeddedStatement(node.elseStatement);
+ }
+ }
+ }
+ function emitDoStatement(node) {
+ write("do");
+ emitEmbeddedStatement(node.statement);
+ if (node.statement.kind === 192 /* Block */) {
+ write(" ");
+ }
+ else {
+ writeLine();
+ }
+ write("while (");
+ emit(node.expression);
+ write(");");
+ }
+ function emitWhileStatement(node) {
+ write("while (");
+ emit(node.expression);
+ write(")");
+ emitEmbeddedStatement(node.statement);
+ }
+ /**
+ * Returns true if start of variable declaration list was emitted.
+ * Returns false if nothing was written - this can happen for source file level variable declarations
+ * in system modules where such variable declarations are hoisted.
+ */
+ function tryEmitStartOfVariableDeclarationList(decl, startPos) {
+ if (shouldHoistVariable(decl, /*checkIfSourceFileLevelDecl*/ true)) {
+ // variables in variable declaration list were already hoisted
+ return false;
+ }
+ var tokenKind = 102 /* VarKeyword */;
+ if (decl && languageVersion >= 2 /* ES6 */) {
+ if (ts.isLet(decl)) {
+ tokenKind = 108 /* LetKeyword */;
+ }
+ else if (ts.isConst(decl)) {
+ tokenKind = 74 /* ConstKeyword */;
+ }
+ }
+ if (startPos !== undefined) {
+ emitToken(tokenKind, startPos);
+ write(" ");
+ }
+ else {
+ switch (tokenKind) {
+ case 102 /* VarKeyword */:
+ write("var ");
+ break;
+ case 108 /* LetKeyword */:
+ write("let ");
+ break;
+ case 74 /* ConstKeyword */:
+ write("const ");
+ break;
+ }
+ }
+ return true;
+ }
+ function emitVariableDeclarationListSkippingUninitializedEntries(list) {
+ var started = false;
+ for (var _a = 0, _b = list.declarations; _a < _b.length; _a++) {
+ var decl = _b[_a];
+ if (!decl.initializer) {
+ continue;
+ }
+ if (!started) {
+ started = true;
+ }
+ else {
+ write(", ");
+ }
+ emit(decl);
+ }
+ return started;
+ }
+ function emitForStatement(node) {
+ var endPos = emitToken(86 /* ForKeyword */, node.pos);
+ write(" ");
+ endPos = emitToken(17 /* OpenParenToken */, endPos);
+ if (node.initializer && node.initializer.kind === 212 /* VariableDeclarationList */) {
+ var variableDeclarationList = node.initializer;
+ var startIsEmitted = tryEmitStartOfVariableDeclarationList(variableDeclarationList, endPos);
+ if (startIsEmitted) {
+ emitCommaList(variableDeclarationList.declarations);
+ }
+ else {
+ emitVariableDeclarationListSkippingUninitializedEntries(variableDeclarationList);
+ }
+ }
+ else if (node.initializer) {
+ emit(node.initializer);
+ }
+ write(";");
+ emitOptional(" ", node.condition);
+ write(";");
+ emitOptional(" ", node.incrementor);
+ write(")");
+ emitEmbeddedStatement(node.statement);
+ }
+ function emitForInOrForOfStatement(node) {
+ if (languageVersion < 2 /* ES6 */ && node.kind === 201 /* ForOfStatement */) {
+ return emitDownLevelForOfStatement(node);
+ }
+ var endPos = emitToken(86 /* ForKeyword */, node.pos);
+ write(" ");
+ endPos = emitToken(17 /* OpenParenToken */, endPos);
+ if (node.initializer.kind === 212 /* VariableDeclarationList */) {
+ var variableDeclarationList = node.initializer;
+ if (variableDeclarationList.declarations.length >= 1) {
+ tryEmitStartOfVariableDeclarationList(variableDeclarationList, endPos);
+ emit(variableDeclarationList.declarations[0]);
+ }
+ }
+ else {
+ emit(node.initializer);
+ }
+ if (node.kind === 200 /* ForInStatement */) {
+ write(" in ");
+ }
+ else {
+ write(" of ");
+ }
+ emit(node.expression);
+ emitToken(18 /* CloseParenToken */, node.expression.end);
+ emitEmbeddedStatement(node.statement);
+ }
+ function emitDownLevelForOfStatement(node) {
+ // The following ES6 code:
+ //
+ // for (let v of expr) { }
+ //
+ // should be emitted as
+ //
+ // for (let _i = 0, _a = expr; _i < _a.length; _i++) {
+ // let v = _a[_i];
+ // }
+ //
+ // where _a and _i are temps emitted to capture the RHS and the counter,
+ // respectively.
+ // When the left hand side is an expression instead of a let declaration,
+ // the "let v" is not emitted.
+ // When the left hand side is a let/const, the v is renamed if there is
+ // another v in scope.
+ // Note that all assignments to the LHS are emitted in the body, including
+ // all destructuring.
+ // Note also that because an extra statement is needed to assign to the LHS,
+ // for-of bodies are always emitted as blocks.
+ var endPos = emitToken(86 /* ForKeyword */, node.pos);
+ write(" ");
+ endPos = emitToken(17 /* OpenParenToken */, endPos);
+ // Do not emit the LHS let declaration yet, because it might contain destructuring.
+ // Do not call recordTempDeclaration because we are declaring the temps
+ // right here. Recording means they will be declared later.
+ // In the case where the user wrote an identifier as the RHS, like this:
+ //
+ // for (let v of arr) { }
+ //
+ // we don't want to emit a temporary variable for the RHS, just use it directly.
+ var rhsIsIdentifier = node.expression.kind === 69 /* Identifier */;
+ var counter = createTempVariable(268435456 /* _i */);
+ var rhsReference = rhsIsIdentifier ? node.expression : createTempVariable(0 /* Auto */);
+ // This is the let keyword for the counter and rhsReference. The let keyword for
+ // the LHS will be emitted inside the body.
+ emitStart(node.expression);
+ write("var ");
+ // _i = 0
+ emitNodeWithoutSourceMap(counter);
+ write(" = 0");
+ emitEnd(node.expression);
+ if (!rhsIsIdentifier) {
+ // , _a = expr
+ write(", ");
+ emitStart(node.expression);
+ emitNodeWithoutSourceMap(rhsReference);
+ write(" = ");
+ emitNodeWithoutSourceMap(node.expression);
+ emitEnd(node.expression);
+ }
+ write("; ");
+ // _i < _a.length;
+ emitStart(node.initializer);
+ emitNodeWithoutSourceMap(counter);
+ write(" < ");
+ emitNodeWithCommentsAndWithoutSourcemap(rhsReference);
+ write(".length");
+ emitEnd(node.initializer);
+ write("; ");
+ // _i++)
+ emitStart(node.initializer);
+ emitNodeWithoutSourceMap(counter);
+ write("++");
+ emitEnd(node.initializer);
+ emitToken(18 /* CloseParenToken */, node.expression.end);
+ // Body
+ write(" {");
+ writeLine();
+ increaseIndent();
+ // Initialize LHS
+ // let v = _a[_i];
+ var rhsIterationValue = createElementAccessExpression(rhsReference, counter);
+ emitStart(node.initializer);
+ if (node.initializer.kind === 212 /* VariableDeclarationList */) {
+ write("var ");
+ var variableDeclarationList = node.initializer;
+ if (variableDeclarationList.declarations.length > 0) {
+ var declaration = variableDeclarationList.declarations[0];
+ if (ts.isBindingPattern(declaration.name)) {
+ // This works whether the declaration is a var, let, or const.
+ // It will use rhsIterationValue _a[_i] as the initializer.
+ emitDestructuring(declaration, /*isAssignmentExpressionStatement*/ false, rhsIterationValue);
+ }
+ else {
+ // The following call does not include the initializer, so we have
+ // to emit it separately.
+ emitNodeWithCommentsAndWithoutSourcemap(declaration);
+ write(" = ");
+ emitNodeWithoutSourceMap(rhsIterationValue);
+ }
+ }
+ else {
+ // It's an empty declaration list. This can only happen in an error case, if the user wrote
+ // for (let of []) {}
+ emitNodeWithoutSourceMap(createTempVariable(0 /* Auto */));
+ write(" = ");
+ emitNodeWithoutSourceMap(rhsIterationValue);
+ }
+ }
+ else {
+ // Initializer is an expression. Emit the expression in the body, so that it's
+ // evaluated on every iteration.
+ var assignmentExpression = createBinaryExpression(node.initializer, 56 /* EqualsToken */, rhsIterationValue, /*startsOnNewLine*/ false);
+ if (node.initializer.kind === 164 /* ArrayLiteralExpression */ || node.initializer.kind === 165 /* ObjectLiteralExpression */) {
+ // This is a destructuring pattern, so call emitDestructuring instead of emit. Calling emit will not work, because it will cause
+ // the BinaryExpression to be passed in instead of the expression statement, which will cause emitDestructuring to crash.
+ emitDestructuring(assignmentExpression, /*isAssignmentExpressionStatement*/ true, /*value*/ undefined);
+ }
+ else {
+ emitNodeWithCommentsAndWithoutSourcemap(assignmentExpression);
+ }
+ }
+ emitEnd(node.initializer);
+ write(";");
+ if (node.statement.kind === 192 /* Block */) {
+ emitLines(node.statement.statements);
+ }
+ else {
+ writeLine();
+ emit(node.statement);
+ }
+ writeLine();
+ decreaseIndent();
+ write("}");
+ }
+ function emitBreakOrContinueStatement(node) {
+ emitToken(node.kind === 203 /* BreakStatement */ ? 70 /* BreakKeyword */ : 75 /* ContinueKeyword */, node.pos);
+ emitOptional(" ", node.label);
+ write(";");
+ }
+ function emitReturnStatement(node) {
+ emitToken(94 /* ReturnKeyword */, node.pos);
+ emitOptional(" ", node.expression);
+ write(";");
+ }
+ function emitWithStatement(node) {
+ write("with (");
+ emit(node.expression);
+ write(")");
+ emitEmbeddedStatement(node.statement);
+ }
+ function emitSwitchStatement(node) {
+ var endPos = emitToken(96 /* SwitchKeyword */, node.pos);
+ write(" ");
+ emitToken(17 /* OpenParenToken */, endPos);
+ emit(node.expression);
+ endPos = emitToken(18 /* CloseParenToken */, node.expression.end);
+ write(" ");
+ emitCaseBlock(node.caseBlock, endPos);
+ }
+ function emitCaseBlock(node, startPos) {
+ emitToken(15 /* OpenBraceToken */, startPos);
+ increaseIndent();
+ emitLines(node.clauses);
+ decreaseIndent();
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.clauses.end);
+ }
+ function nodeStartPositionsAreOnSameLine(node1, node2) {
+ return ts.getLineOfLocalPosition(currentSourceFile, ts.skipTrivia(currentSourceFile.text, node1.pos)) ===
+ ts.getLineOfLocalPosition(currentSourceFile, ts.skipTrivia(currentSourceFile.text, node2.pos));
+ }
+ function nodeEndPositionsAreOnSameLine(node1, node2) {
+ return ts.getLineOfLocalPosition(currentSourceFile, node1.end) ===
+ ts.getLineOfLocalPosition(currentSourceFile, node2.end);
+ }
+ function nodeEndIsOnSameLineAsNodeStart(node1, node2) {
+ return ts.getLineOfLocalPosition(currentSourceFile, node1.end) ===
+ ts.getLineOfLocalPosition(currentSourceFile, ts.skipTrivia(currentSourceFile.text, node2.pos));
+ }
+ function emitCaseOrDefaultClause(node) {
+ if (node.kind === 241 /* CaseClause */) {
+ write("case ");
+ emit(node.expression);
+ write(":");
+ }
+ else {
+ write("default:");
+ }
+ if (node.statements.length === 1 && nodeStartPositionsAreOnSameLine(node, node.statements[0])) {
+ write(" ");
+ emit(node.statements[0]);
+ }
+ else {
+ increaseIndent();
+ emitLines(node.statements);
+ decreaseIndent();
+ }
+ }
+ function emitThrowStatement(node) {
+ write("throw ");
+ emit(node.expression);
+ write(";");
+ }
+ function emitTryStatement(node) {
+ write("try ");
+ emit(node.tryBlock);
+ emit(node.catchClause);
+ if (node.finallyBlock) {
+ writeLine();
+ write("finally ");
+ emit(node.finallyBlock);
+ }
+ }
+ function emitCatchClause(node) {
+ writeLine();
+ var endPos = emitToken(72 /* CatchKeyword */, node.pos);
+ write(" ");
+ emitToken(17 /* OpenParenToken */, endPos);
+ emit(node.variableDeclaration);
+ emitToken(18 /* CloseParenToken */, node.variableDeclaration ? node.variableDeclaration.end : endPos);
+ write(" ");
+ emitBlock(node.block);
+ }
+ function emitDebuggerStatement(node) {
+ emitToken(76 /* DebuggerKeyword */, node.pos);
+ write(";");
+ }
+ function emitLabelledStatement(node) {
+ emit(node.label);
+ write(": ");
+ emit(node.statement);
+ }
+ function getContainingModule(node) {
+ do {
+ node = node.parent;
+ } while (node && node.kind !== 218 /* ModuleDeclaration */);
+ return node;
+ }
+ function emitContainingModuleName(node) {
+ var container = getContainingModule(node);
+ write(container ? getGeneratedNameForNode(container) : "exports");
+ }
+ function emitModuleMemberName(node) {
+ emitStart(node.name);
+ if (ts.getCombinedNodeFlags(node) & 1 /* Export */) {
+ var container = getContainingModule(node);
+ if (container) {
+ write(getGeneratedNameForNode(container));
+ write(".");
+ }
+ else if (modulekind !== 5 /* ES6 */ && modulekind !== 4 /* System */) {
+ write("exports.");
+ }
+ }
+ emitNodeWithCommentsAndWithoutSourcemap(node.name);
+ emitEnd(node.name);
+ }
+ function createVoidZero() {
+ var zero = ts.createSynthesizedNode(8 /* NumericLiteral */);
+ zero.text = "0";
+ var result = ts.createSynthesizedNode(177 /* VoidExpression */);
+ result.expression = zero;
+ return result;
+ }
+ function emitEs6ExportDefaultCompat(node) {
+ if (node.parent.kind === 248 /* SourceFile */) {
+ ts.Debug.assert(!!(node.flags & 1024 /* Default */) || node.kind === 227 /* ExportAssignment */);
+ // only allow export default at a source file level
+ if (modulekind === 1 /* CommonJS */ || modulekind === 2 /* AMD */ || modulekind === 3 /* UMD */) {
+ if (!currentSourceFile.symbol.exports["___esModule"]) {
+ if (languageVersion === 1 /* ES5 */) {
+ // default value of configurable, enumerable, writable are `false`.
+ write("Object.defineProperty(exports, \"__esModule\", { value: true });");
+ writeLine();
+ }
+ else if (languageVersion === 0 /* ES3 */) {
+ write("exports.__esModule = true;");
+ writeLine();
+ }
+ }
+ }
+ }
+ }
+ function emitExportMemberAssignment(node) {
+ if (node.flags & 1 /* Export */) {
+ writeLine();
+ emitStart(node);
+ // emit call to exporter only for top level nodes
+ if (modulekind === 4 /* System */ && node.parent === currentSourceFile) {
+ // emit export default <smth> as
+ // export("default", <smth>)
+ write(exportFunctionForFile + "(\"");
+ if (node.flags & 1024 /* Default */) {
+ write("default");
+ }
+ else {
+ emitNodeWithCommentsAndWithoutSourcemap(node.name);
+ }
+ write("\", ");
+ emitDeclarationName(node);
+ write(")");
+ }
+ else {
+ if (node.flags & 1024 /* Default */) {
+ emitEs6ExportDefaultCompat(node);
+ if (languageVersion === 0 /* ES3 */) {
+ write("exports[\"default\"]");
+ }
+ else {
+ write("exports.default");
+ }
+ }
+ else {
+ emitModuleMemberName(node);
+ }
+ write(" = ");
+ emitDeclarationName(node);
+ }
+ emitEnd(node);
+ write(";");
+ }
+ }
+ function emitExportMemberAssignments(name) {
+ if (modulekind === 4 /* System */) {
+ return;
+ }
+ if (!exportEquals && exportSpecifiers && ts.hasProperty(exportSpecifiers, name.text)) {
+ for (var _a = 0, _b = exportSpecifiers[name.text]; _a < _b.length; _a++) {
+ var specifier = _b[_a];
+ writeLine();
+ emitStart(specifier.name);
+ emitContainingModuleName(specifier);
+ write(".");
+ emitNodeWithCommentsAndWithoutSourcemap(specifier.name);
+ emitEnd(specifier.name);
+ write(" = ");
+ emitExpressionIdentifier(name);
+ write(";");
+ }
+ }
+ }
+ function emitExportSpecifierInSystemModule(specifier) {
+ ts.Debug.assert(modulekind === 4 /* System */);
+ if (!resolver.getReferencedValueDeclaration(specifier.propertyName || specifier.name) && !resolver.isValueAliasDeclaration(specifier)) {
+ return;
+ }
+ writeLine();
+ emitStart(specifier.name);
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithCommentsAndWithoutSourcemap(specifier.name);
+ write("\", ");
+ emitExpressionIdentifier(specifier.propertyName || specifier.name);
+ write(")");
+ emitEnd(specifier.name);
+ write(";");
+ }
+ /**
+ * Emit an assignment to a given identifier, 'name', with a given expression, 'value'.
+ * @param name an identifier as a left-hand-side operand of the assignment
+ * @param value an expression as a right-hand-side operand of the assignment
+ * @param shouldEmitCommaBeforeAssignment a boolean indicating whether to prefix an assignment with comma
+ */
+ function emitAssignment(name, value, shouldEmitCommaBeforeAssignment) {
+ if (shouldEmitCommaBeforeAssignment) {
+ write(", ");
+ }
+ var exportChanged = isNameOfExportedSourceLevelDeclarationInSystemExternalModule(name);
+ if (exportChanged) {
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithCommentsAndWithoutSourcemap(name);
+ write("\", ");
+ }
+ var isVariableDeclarationOrBindingElement = name.parent && (name.parent.kind === 211 /* VariableDeclaration */ || name.parent.kind === 163 /* BindingElement */);
+ if (isVariableDeclarationOrBindingElement) {
+ emitModuleMemberName(name.parent);
+ }
+ else {
+ emit(name);
+ }
+ write(" = ");
+ emit(value);
+ if (exportChanged) {
+ write(")");
+ }
+ }
+ /**
+ * Create temporary variable, emit an assignment of the variable the given expression
+ * @param expression an expression to assign to the newly created temporary variable
+ * @param canDefineTempVariablesInPlace a boolean indicating whether you can define the temporary variable at an assignment location
+ * @param shouldEmitCommaBeforeAssignment a boolean indicating whether an assignment should prefix with comma
+ */
+ function emitTempVariableAssignment(expression, canDefineTempVariablesInPlace, shouldEmitCommaBeforeAssignment) {
+ var identifier = createTempVariable(0 /* Auto */);
+ if (!canDefineTempVariablesInPlace) {
+ recordTempDeclaration(identifier);
+ }
+ emitAssignment(identifier, expression, shouldEmitCommaBeforeAssignment);
+ return identifier;
+ }
+ function emitDestructuring(root, isAssignmentExpressionStatement, value) {
+ var emitCount = 0;
+ // An exported declaration is actually emitted as an assignment (to a property on the module object), so
+ // temporary variables in an exported declaration need to have real declarations elsewhere
+ // Also temporary variables should be explicitly allocated for source level declarations when module target is system
+ // because actual variable declarations are hoisted
+ var canDefineTempVariablesInPlace = false;
+ if (root.kind === 211 /* VariableDeclaration */) {
+ var isExported = ts.getCombinedNodeFlags(root) & 1 /* Export */;
+ var isSourceLevelForSystemModuleKind = shouldHoistDeclarationInSystemJsModule(root);
+ canDefineTempVariablesInPlace = !isExported && !isSourceLevelForSystemModuleKind;
+ }
+ else if (root.kind === 138 /* Parameter */) {
+ canDefineTempVariablesInPlace = true;
+ }
+ if (root.kind === 181 /* BinaryExpression */) {
+ emitAssignmentExpression(root);
+ }
+ else {
+ ts.Debug.assert(!isAssignmentExpressionStatement);
+ emitBindingElement(root, value);
+ }
+ /**
+ * Ensures that there exists a declared identifier whose value holds the given expression.
+ * This function is useful to ensure that the expression's value can be read from in subsequent expressions.
+ * Unless 'reuseIdentifierExpressions' is false, 'expr' will be returned if it is just an identifier.
+ *
+ * @param expr the expression whose value needs to be bound.
+ * @param reuseIdentifierExpressions true if identifier expressions can simply be returned;
+ * false if it is necessary to always emit an identifier.
+ */
+ function ensureIdentifier(expr, reuseIdentifierExpressions) {
+ if (expr.kind === 69 /* Identifier */ && reuseIdentifierExpressions) {
+ return expr;
+ }
+ var identifier = emitTempVariableAssignment(expr, canDefineTempVariablesInPlace, emitCount > 0);
+ emitCount++;
+ return identifier;
+ }
+ function createDefaultValueCheck(value, defaultValue) {
+ // The value expression will be evaluated twice, so for anything but a simple identifier
+ // we need to generate a temporary variable
+ value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true);
+ // Return the expression 'value === void 0 ? defaultValue : value'
+ var equals = ts.createSynthesizedNode(181 /* BinaryExpression */);
+ equals.left = value;
+ equals.operatorToken = ts.createSynthesizedNode(32 /* EqualsEqualsEqualsToken */);
+ equals.right = createVoidZero();
+ return createConditionalExpression(equals, defaultValue, value);
+ }
+ function createConditionalExpression(condition, whenTrue, whenFalse) {
+ var cond = ts.createSynthesizedNode(182 /* ConditionalExpression */);
+ cond.condition = condition;
+ cond.questionToken = ts.createSynthesizedNode(53 /* QuestionToken */);
+ cond.whenTrue = whenTrue;
+ cond.colonToken = ts.createSynthesizedNode(54 /* ColonToken */);
+ cond.whenFalse = whenFalse;
+ return cond;
+ }
+ function createNumericLiteral(value) {
+ var node = ts.createSynthesizedNode(8 /* NumericLiteral */);
+ node.text = "" + value;
+ return node;
+ }
+ function createPropertyAccessForDestructuringProperty(object, propName) {
+ // We create a synthetic copy of the identifier in order to avoid the rewriting that might
+ // otherwise occur when the identifier is emitted.
+ var syntheticName = ts.createSynthesizedNode(propName.kind);
+ syntheticName.text = propName.text;
+ if (syntheticName.kind !== 69 /* Identifier */) {
+ return createElementAccessExpression(object, syntheticName);
+ }
+ return createPropertyAccessExpression(object, syntheticName);
+ }
+ function createSliceCall(value, sliceIndex) {
+ var call = ts.createSynthesizedNode(168 /* CallExpression */);
+ var sliceIdentifier = ts.createSynthesizedNode(69 /* Identifier */);
+ sliceIdentifier.text = "slice";
+ call.expression = createPropertyAccessExpression(value, sliceIdentifier);
+ call.arguments = ts.createSynthesizedNodeArray();
+ call.arguments[0] = createNumericLiteral(sliceIndex);
+ return call;
+ }
+ function emitObjectLiteralAssignment(target, value) {
+ var properties = target.properties;
+ if (properties.length !== 1) {
+ // For anything but a single element destructuring we need to generate a temporary
+ // to ensure value is evaluated exactly once.
+ value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true);
+ }
+ for (var _a = 0; _a < properties.length; _a++) {
+ var p = properties[_a];
+ if (p.kind === 245 /* PropertyAssignment */ || p.kind === 246 /* ShorthandPropertyAssignment */) {
+ var propName = p.name;
+ var target_1 = p.kind === 246 /* ShorthandPropertyAssignment */ ? p : p.initializer || propName;
+ emitDestructuringAssignment(target_1, createPropertyAccessForDestructuringProperty(value, propName));
+ }
+ }
+ }
+ function emitArrayLiteralAssignment(target, value) {
+ var elements = target.elements;
+ if (elements.length !== 1) {
+ // For anything but a single element destructuring we need to generate a temporary
+ // to ensure value is evaluated exactly once.
+ value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true);
+ }
+ for (var i = 0; i < elements.length; i++) {
+ var e = elements[i];
+ if (e.kind !== 187 /* OmittedExpression */) {
+ if (e.kind !== 185 /* SpreadElementExpression */) {
+ emitDestructuringAssignment(e, createElementAccessExpression(value, createNumericLiteral(i)));
+ }
+ else if (i === elements.length - 1) {
+ emitDestructuringAssignment(e.expression, createSliceCall(value, i));
+ }
+ }
+ }
+ }
+ function emitDestructuringAssignment(target, value) {
+ if (target.kind === 246 /* ShorthandPropertyAssignment */) {
+ if (target.objectAssignmentInitializer) {
+ value = createDefaultValueCheck(value, target.objectAssignmentInitializer);
+ }
+ target = target.name;
+ }
+ else if (target.kind === 181 /* BinaryExpression */ && target.operatorToken.kind === 56 /* EqualsToken */) {
+ value = createDefaultValueCheck(value, target.right);
+ target = target.left;
+ }
+ if (target.kind === 165 /* ObjectLiteralExpression */) {
+ emitObjectLiteralAssignment(target, value);
+ }
+ else if (target.kind === 164 /* ArrayLiteralExpression */) {
+ emitArrayLiteralAssignment(target, value);
+ }
+ else {
+ emitAssignment(target, value, /*shouldEmitCommaBeforeAssignment*/ emitCount > 0);
+ emitCount++;
+ }
+ }
+ function emitAssignmentExpression(root) {
+ var target = root.left;
+ var value = root.right;
+ if (ts.isEmptyObjectLiteralOrArrayLiteral(target)) {
+ emit(value);
+ }
+ else if (isAssignmentExpressionStatement) {
+ emitDestructuringAssignment(target, value);
+ }
+ else {
+ if (root.parent.kind !== 172 /* ParenthesizedExpression */) {
+ write("(");
+ }
+ value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ true);
+ emitDestructuringAssignment(target, value);
+ write(", ");
+ emit(value);
+ if (root.parent.kind !== 172 /* ParenthesizedExpression */) {
+ write(")");
+ }
+ }
+ }
+ function emitBindingElement(target, value) {
+ if (target.initializer) {
+ // Combine value and initializer
+ value = value ? createDefaultValueCheck(value, target.initializer) : target.initializer;
+ }
+ else if (!value) {
+ // Use 'void 0' in absence of value and initializer
+ value = createVoidZero();
+ }
+ if (ts.isBindingPattern(target.name)) {
+ var pattern = target.name;
+ var elements = pattern.elements;
+ var numElements = elements.length;
+ if (numElements !== 1) {
+ // For anything other than a single-element destructuring we need to generate a temporary
+ // to ensure value is evaluated exactly once. Additionally, if we have zero elements
+ // we need to emit *something* to ensure that in case a 'var' keyword was already emitted,
+ // so in that case, we'll intentionally create that temporary.
+ value = ensureIdentifier(value, /*reuseIdentifierExpressions*/ numElements !== 0);
+ }
+ for (var i = 0; i < numElements; i++) {
+ var element = elements[i];
+ if (pattern.kind === 161 /* ObjectBindingPattern */) {
+ // Rewrite element to a declaration with an initializer that fetches property
+ var propName = element.propertyName || element.name;
+ emitBindingElement(element, createPropertyAccessForDestructuringProperty(value, propName));
+ }
+ else if (element.kind !== 187 /* OmittedExpression */) {
+ if (!element.dotDotDotToken) {
+ // Rewrite element to a declaration that accesses array element at index i
+ emitBindingElement(element, createElementAccessExpression(value, createNumericLiteral(i)));
+ }
+ else if (i === numElements - 1) {
+ emitBindingElement(element, createSliceCall(value, i));
+ }
+ }
+ }
+ }
+ else {
+ emitAssignment(target.name, value, /*shouldEmitCommaBeforeAssignment*/ emitCount > 0);
+ emitCount++;
+ }
+ }
+ }
+ function emitVariableDeclaration(node) {
+ if (ts.isBindingPattern(node.name)) {
+ if (languageVersion < 2 /* ES6 */) {
+ emitDestructuring(node, /*isAssignmentExpressionStatement*/ false);
+ }
+ else {
+ emit(node.name);
+ emitOptional(" = ", node.initializer);
+ }
+ }
+ else {
+ var initializer = node.initializer;
+ if (!initializer && languageVersion < 2 /* ES6 */) {
+ // downlevel emit for non-initialized let bindings defined in loops
+ // for (...) { let x; }
+ // should be
+ // for (...) { var <some-uniqie-name> = void 0; }
+ // this is necessary to preserve ES6 semantic in scenarios like
+ // for (...) { let x; console.log(x); x = 1 } // assignment on one iteration should not affect other iterations
+ var isUninitializedLet = (resolver.getNodeCheckFlags(node) & 16384 /* BlockScopedBindingInLoop */) &&
+ (getCombinedFlagsForIdentifier(node.name) & 16384 /* Let */);
+ // NOTE: default initialization should not be added to let bindings in for-in\for-of statements
+ if (isUninitializedLet &&
+ node.parent.parent.kind !== 200 /* ForInStatement */ &&
+ node.parent.parent.kind !== 201 /* ForOfStatement */) {
+ initializer = createVoidZero();
+ }
+ }
+ var exportChanged = isNameOfExportedSourceLevelDeclarationInSystemExternalModule(node.name);
+ if (exportChanged) {
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithCommentsAndWithoutSourcemap(node.name);
+ write("\", ");
+ }
+ emitModuleMemberName(node);
+ emitOptional(" = ", initializer);
+ if (exportChanged) {
+ write(")");
+ }
+ }
+ }
+ function emitExportVariableAssignments(node) {
+ if (node.kind === 187 /* OmittedExpression */) {
+ return;
+ }
+ var name = node.name;
+ if (name.kind === 69 /* Identifier */) {
+ emitExportMemberAssignments(name);
+ }
+ else if (ts.isBindingPattern(name)) {
+ ts.forEach(name.elements, emitExportVariableAssignments);
+ }
+ }
+ function getCombinedFlagsForIdentifier(node) {
+ if (!node.parent || (node.parent.kind !== 211 /* VariableDeclaration */ && node.parent.kind !== 163 /* BindingElement */)) {
+ return 0;
+ }
+ return ts.getCombinedNodeFlags(node.parent);
+ }
+ function isES6ExportedDeclaration(node) {
+ return !!(node.flags & 1 /* Export */) &&
+ modulekind === 5 /* ES6 */ &&
+ node.parent.kind === 248 /* SourceFile */;
+ }
+ function emitVariableStatement(node) {
+ var startIsEmitted = false;
+ if (node.flags & 1 /* Export */) {
+ if (isES6ExportedDeclaration(node)) {
+ // Exported ES6 module member
+ write("export ");
+ startIsEmitted = tryEmitStartOfVariableDeclarationList(node.declarationList);
+ }
+ }
+ else {
+ startIsEmitted = tryEmitStartOfVariableDeclarationList(node.declarationList);
+ }
+ if (startIsEmitted) {
+ emitCommaList(node.declarationList.declarations);
+ write(";");
+ }
+ else {
+ var atLeastOneItem = emitVariableDeclarationListSkippingUninitializedEntries(node.declarationList);
+ if (atLeastOneItem) {
+ write(";");
+ }
+ }
+ if (modulekind !== 5 /* ES6 */ && node.parent === currentSourceFile) {
+ ts.forEach(node.declarationList.declarations, emitExportVariableAssignments);
+ }
+ }
+ function shouldEmitLeadingAndTrailingCommentsForVariableStatement(node) {
+ // If we're not exporting the variables, there's nothing special here.
+ // Always emit comments for these nodes.
+ if (!(node.flags & 1 /* Export */)) {
+ return true;
+ }
+ // If we are exporting, but it's a top-level ES6 module exports,
+ // we'll emit the declaration list verbatim, so emit comments too.
+ if (isES6ExportedDeclaration(node)) {
+ return true;
+ }
+ // Otherwise, only emit if we have at least one initializer present.
+ for (var _a = 0, _b = node.declarationList.declarations; _a < _b.length; _a++) {
+ var declaration = _b[_a];
+ if (declaration.initializer) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function emitParameter(node) {
+ if (languageVersion < 2 /* ES6 */) {
+ if (ts.isBindingPattern(node.name)) {
+ var name_24 = createTempVariable(0 /* Auto */);
+ if (!tempParameters) {
+ tempParameters = [];
+ }
+ tempParameters.push(name_24);
+ emit(name_24);
+ }
+ else {
+ emit(node.name);
+ }
+ }
+ else {
+ if (node.dotDotDotToken) {
+ write("...");
+ }
+ emit(node.name);
+ emitOptional(" = ", node.initializer);
+ }
+ }
+ function emitDefaultValueAssignments(node) {
+ if (languageVersion < 2 /* ES6 */) {
+ var tempIndex = 0;
+ ts.forEach(node.parameters, function (parameter) {
+ // A rest parameter cannot have a binding pattern or an initializer,
+ // so let's just ignore it.
+ if (parameter.dotDotDotToken) {
+ return;
+ }
+ var paramName = parameter.name, initializer = parameter.initializer;
+ if (ts.isBindingPattern(paramName)) {
+ // In cases where a binding pattern is simply '[]' or '{}',
+ // we usually don't want to emit a var declaration; however, in the presence
+ // of an initializer, we must emit that expression to preserve side effects.
+ var hasBindingElements = paramName.elements.length > 0;
+ if (hasBindingElements || initializer) {
+ writeLine();
+ write("var ");
+ if (hasBindingElements) {
+ emitDestructuring(parameter, /*isAssignmentExpressionStatement*/ false, tempParameters[tempIndex]);
+ }
+ else {
+ emit(tempParameters[tempIndex]);
+ write(" = ");
+ emit(initializer);
+ }
+ write(";");
+ tempIndex++;
+ }
+ }
+ else if (initializer) {
+ writeLine();
+ emitStart(parameter);
+ write("if (");
+ emitNodeWithoutSourceMap(paramName);
+ write(" === void 0)");
+ emitEnd(parameter);
+ write(" { ");
+ emitStart(parameter);
+ emitNodeWithCommentsAndWithoutSourcemap(paramName);
+ write(" = ");
+ emitNodeWithCommentsAndWithoutSourcemap(initializer);
+ emitEnd(parameter);
+ write("; }");
+ }
+ });
+ }
+ }
+ function emitRestParameter(node) {
+ if (languageVersion < 2 /* ES6 */ && ts.hasRestParameter(node)) {
+ var restIndex = node.parameters.length - 1;
+ var restParam = node.parameters[restIndex];
+ // A rest parameter cannot have a binding pattern, so let's just ignore it if it does.
+ if (ts.isBindingPattern(restParam.name)) {
+ return;
+ }
+ var tempName = createTempVariable(268435456 /* _i */).text;
+ writeLine();
+ emitLeadingComments(restParam);
+ emitStart(restParam);
+ write("var ");
+ emitNodeWithCommentsAndWithoutSourcemap(restParam.name);
+ write(" = [];");
+ emitEnd(restParam);
+ emitTrailingComments(restParam);
+ writeLine();
+ write("for (");
+ emitStart(restParam);
+ write("var " + tempName + " = " + restIndex + ";");
+ emitEnd(restParam);
+ write(" ");
+ emitStart(restParam);
+ write(tempName + " < arguments.length;");
+ emitEnd(restParam);
+ write(" ");
+ emitStart(restParam);
+ write(tempName + "++");
+ emitEnd(restParam);
+ write(") {");
+ increaseIndent();
+ writeLine();
+ emitStart(restParam);
+ emitNodeWithCommentsAndWithoutSourcemap(restParam.name);
+ write("[" + tempName + " - " + restIndex + "] = arguments[" + tempName + "];");
+ emitEnd(restParam);
+ decreaseIndent();
+ writeLine();
+ write("}");
+ }
+ }
+ function emitAccessor(node) {
+ write(node.kind === 145 /* GetAccessor */ ? "get " : "set ");
+ emit(node.name);
+ emitSignatureAndBody(node);
+ }
+ function shouldEmitAsArrowFunction(node) {
+ return node.kind === 174 /* ArrowFunction */ && languageVersion >= 2 /* ES6 */;
+ }
+ function emitDeclarationName(node) {
+ if (node.name) {
+ emitNodeWithCommentsAndWithoutSourcemap(node.name);
+ }
+ else {
+ write(getGeneratedNameForNode(node));
+ }
+ }
+ function shouldEmitFunctionName(node) {
+ if (node.kind === 173 /* FunctionExpression */) {
+ // Emit name if one is present
+ return !!node.name;
+ }
+ if (node.kind === 213 /* FunctionDeclaration */) {
+ // Emit name if one is present, or emit generated name in down-level case (for export default case)
+ return !!node.name || languageVersion < 2 /* ES6 */;
+ }
+ }
+ function emitFunctionDeclaration(node) {
+ if (ts.nodeIsMissing(node.body)) {
+ return emitCommentsOnNotEmittedNode(node);
+ }
+ // TODO (yuisu) : we should not have special cases to condition emitting comments
+ // but have one place to fix check for these conditions.
+ if (node.kind !== 143 /* MethodDeclaration */ && node.kind !== 142 /* MethodSignature */ &&
+ node.parent && node.parent.kind !== 245 /* PropertyAssignment */ &&
+ node.parent.kind !== 168 /* CallExpression */) {
+ // 1. Methods will emit the comments as part of emitting method declaration
+ // 2. If the function is a property of object literal, emitting leading-comments
+ // is done by emitNodeWithoutSourceMap which then call this function.
+ // In particular, we would like to avoid emit comments twice in following case:
+ // For example:
+ // var obj = {
+ // id:
+ // /*comment*/ () => void
+ // }
+ // 3. If the function is an argument in call expression, emitting of comments will be
+ // taken care of in emit list of arguments inside of emitCallexpression
+ emitLeadingComments(node);
+ }
+ emitStart(node);
+ // For targeting below es6, emit functions-like declaration including arrow function using function keyword.
+ // When targeting ES6, emit arrow function natively in ES6 by omitting function keyword and using fat arrow instead
+ if (!shouldEmitAsArrowFunction(node)) {
+ if (isES6ExportedDeclaration(node)) {
+ write("export ");
+ if (node.flags & 1024 /* Default */) {
+ write("default ");
+ }
+ }
+ write("function");
+ if (languageVersion >= 2 /* ES6 */ && node.asteriskToken) {
+ write("*");
+ }
+ write(" ");
+ }
+ if (shouldEmitFunctionName(node)) {
+ emitDeclarationName(node);
+ }
+ emitSignatureAndBody(node);
+ if (modulekind !== 5 /* ES6 */ && node.kind === 213 /* FunctionDeclaration */ && node.parent === currentSourceFile && node.name) {
+ emitExportMemberAssignments(node.name);
+ }
+ emitEnd(node);
+ if (node.kind !== 143 /* MethodDeclaration */ && node.kind !== 142 /* MethodSignature */) {
+ emitTrailingComments(node);
+ }
+ }
+ function emitCaptureThisForNodeIfNecessary(node) {
+ if (resolver.getNodeCheckFlags(node) & 4 /* CaptureThis */) {
+ writeLine();
+ emitStart(node);
+ write("var _this = this;");
+ emitEnd(node);
+ }
+ }
+ function emitSignatureParameters(node) {
+ increaseIndent();
+ write("(");
+ if (node) {
+ var parameters = node.parameters;
+ var omitCount = languageVersion < 2 /* ES6 */ && ts.hasRestParameter(node) ? 1 : 0;
+ emitList(parameters, 0, parameters.length - omitCount, /*multiLine*/ false, /*trailingComma*/ false);
+ }
+ write(")");
+ decreaseIndent();
+ }
+ function emitSignatureParametersForArrow(node) {
+ // Check whether the parameter list needs parentheses and preserve no-parenthesis
+ if (node.parameters.length === 1 && node.pos === node.parameters[0].pos) {
+ emit(node.parameters[0]);
+ return;
+ }
+ emitSignatureParameters(node);
+ }
+ function emitAsyncFunctionBodyForES6(node) {
+ var promiseConstructor = ts.getEntityNameFromTypeNode(node.type);
+ var isArrowFunction = node.kind === 174 /* ArrowFunction */;
+ var hasLexicalArguments = (resolver.getNodeCheckFlags(node) & 4096 /* CaptureArguments */) !== 0;
+ var args;
+ // An async function is emit as an outer function that calls an inner
+ // generator function. To preserve lexical bindings, we pass the current
+ // `this` and `arguments` objects to `__awaiter`. The generator function
+ // passed to `__awaiter` is executed inside of the callback to the
+ // promise constructor.
+ //
+ // The emit for an async arrow without a lexical `arguments` binding might be:
+ //
+ // // input
+ // let a = async (b) => { await b; }
+ //
+ // // output
+ // let a = (b) => __awaiter(this, void 0, void 0, function* () {
+ // yield b;
+ // });
+ //
+ // The emit for an async arrow with a lexical `arguments` binding might be:
+ //
+ // // input
+ // let a = async (b) => { await arguments[0]; }
+ //
+ // // output
+ // let a = (b) => __awaiter(this, arguments, void 0, function* (arguments) {
+ // yield arguments[0];
+ // });
+ //
+ // The emit for an async function expression without a lexical `arguments` binding
+ // might be:
+ //
+ // // input
+ // let a = async function (b) {
+ // await b;
+ // }
+ //
+ // // output
+ // let a = function (b) {
+ // return __awaiter(this, void 0, void 0, function* () {
+ // yield b;
+ // });
+ // }
+ //
+ // The emit for an async function expression with a lexical `arguments` binding
+ // might be:
+ //
+ // // input
+ // let a = async function (b) {
+ // await arguments[0];
+ // }
+ //
+ // // output
+ // let a = function (b) {
+ // return __awaiter(this, arguments, void 0, function* (_arguments) {
+ // yield _arguments[0];
+ // });
+ // }
+ //
+ // The emit for an async function expression with a lexical `arguments` binding
+ // and a return type annotation might be:
+ //
+ // // input
+ // let a = async function (b): MyPromise<any> {
+ // await arguments[0];
+ // }
+ //
+ // // output
+ // let a = function (b) {
+ // return __awaiter(this, arguments, MyPromise, function* (_arguments) {
+ // yield _arguments[0];
+ // });
+ // }
+ //
+ // If this is not an async arrow, emit the opening brace of the function body
+ // and the start of the return statement.
+ if (!isArrowFunction) {
+ write(" {");
+ increaseIndent();
+ writeLine();
+ write("return");
+ }
+ write(" __awaiter(this");
+ if (hasLexicalArguments) {
+ write(", arguments");
+ }
+ else {
+ write(", void 0");
+ }
+ if (promiseConstructor) {
+ write(", ");
+ emitNodeWithoutSourceMap(promiseConstructor);
+ }
+ else {
+ write(", Promise");
+ }
+ // Emit the call to __awaiter.
+ if (hasLexicalArguments) {
+ write(", function* (_arguments)");
+ }
+ else {
+ write(", function* ()");
+ }
+ // Emit the signature and body for the inner generator function.
+ emitFunctionBody(node);
+ write(")");
+ // If this is not an async arrow, emit the closing brace of the outer function body.
+ if (!isArrowFunction) {
+ write(";");
+ decreaseIndent();
+ writeLine();
+ write("}");
+ }
+ }
+ function emitFunctionBody(node) {
+ if (!node.body) {
+ // There can be no body when there are parse errors. Just emit an empty block
+ // in that case.
+ write(" { }");
+ }
+ else {
+ if (node.body.kind === 192 /* Block */) {
+ emitBlockFunctionBody(node, node.body);
+ }
+ else {
+ emitExpressionFunctionBody(node, node.body);
+ }
+ }
+ }
+ function emitSignatureAndBody(node) {
+ var saveTempFlags = tempFlags;
+ var saveTempVariables = tempVariables;
+ var saveTempParameters = tempParameters;
+ tempFlags = 0;
+ tempVariables = undefined;
+ tempParameters = undefined;
+ // When targeting ES6, emit arrow function natively in ES6
+ if (shouldEmitAsArrowFunction(node)) {
+ emitSignatureParametersForArrow(node);
+ write(" =>");
+ }
+ else {
+ emitSignatureParameters(node);
+ }
+ var isAsync = ts.isAsyncFunctionLike(node);
+ if (isAsync && languageVersion === 2 /* ES6 */) {
+ emitAsyncFunctionBodyForES6(node);
+ }
+ else {
+ emitFunctionBody(node);
+ }
+ if (!isES6ExportedDeclaration(node)) {
+ emitExportMemberAssignment(node);
+ }
+ tempFlags = saveTempFlags;
+ tempVariables = saveTempVariables;
+ tempParameters = saveTempParameters;
+ }
+ // Returns true if any preamble code was emitted.
+ function emitFunctionBodyPreamble(node) {
+ emitCaptureThisForNodeIfNecessary(node);
+ emitDefaultValueAssignments(node);
+ emitRestParameter(node);
+ }
+ function emitExpressionFunctionBody(node, body) {
+ if (languageVersion < 2 /* ES6 */ || node.flags & 512 /* Async */) {
+ emitDownLevelExpressionFunctionBody(node, body);
+ return;
+ }
+ // For es6 and higher we can emit the expression as is. However, in the case
+ // where the expression might end up looking like a block when emitted, we'll
+ // also wrap it in parentheses first. For example if you have: a => <foo>{}
+ // then we need to generate: a => ({})
+ write(" ");
+ // Unwrap all type assertions.
+ var current = body;
+ while (current.kind === 171 /* TypeAssertionExpression */) {
+ current = current.expression;
+ }
+ emitParenthesizedIf(body, current.kind === 165 /* ObjectLiteralExpression */);
+ }
+ function emitDownLevelExpressionFunctionBody(node, body) {
+ write(" {");
+ scopeEmitStart(node);
+ increaseIndent();
+ var outPos = writer.getTextPos();
+ emitDetachedComments(node.body);
+ emitFunctionBodyPreamble(node);
+ var preambleEmitted = writer.getTextPos() !== outPos;
+ decreaseIndent();
+ // If we didn't have to emit any preamble code, then attempt to keep the arrow
+ // function on one line.
+ if (!preambleEmitted && nodeStartPositionsAreOnSameLine(node, body)) {
+ write(" ");
+ emitStart(body);
+ write("return ");
+ emit(body);
+ emitEnd(body);
+ write(";");
+ emitTempDeclarations(/*newLine*/ false);
+ write(" ");
+ }
+ else {
+ increaseIndent();
+ writeLine();
+ emitLeadingComments(node.body);
+ write("return ");
+ emit(body);
+ write(";");
+ emitTrailingComments(node.body);
+ emitTempDeclarations(/*newLine*/ true);
+ decreaseIndent();
+ writeLine();
+ }
+ emitStart(node.body);
+ write("}");
+ emitEnd(node.body);
+ scopeEmitEnd();
+ }
+ function emitBlockFunctionBody(node, body) {
+ write(" {");
+ scopeEmitStart(node);
+ var initialTextPos = writer.getTextPos();
+ increaseIndent();
+ emitDetachedComments(body.statements);
+ // Emit all the directive prologues (like "use strict"). These have to come before
+ // any other preamble code we write (like parameter initializers).
+ var startIndex = emitDirectivePrologues(body.statements, /*startWithNewLine*/ true);
+ emitFunctionBodyPreamble(node);
+ decreaseIndent();
+ var preambleEmitted = writer.getTextPos() !== initialTextPos;
+ if (!preambleEmitted && nodeEndIsOnSameLineAsNodeStart(body, body)) {
+ for (var _a = 0, _b = body.statements; _a < _b.length; _a++) {
+ var statement = _b[_a];
+ write(" ");
+ emit(statement);
+ }
+ emitTempDeclarations(/*newLine*/ false);
+ write(" ");
+ emitLeadingCommentsOfPosition(body.statements.end);
+ }
+ else {
+ increaseIndent();
+ emitLinesStartingAt(body.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ writeLine();
+ emitLeadingCommentsOfPosition(body.statements.end);
+ decreaseIndent();
+ }
+ emitToken(16 /* CloseBraceToken */, body.statements.end);
+ scopeEmitEnd();
+ }
+ function findInitialSuperCall(ctor) {
+ if (ctor.body) {
+ var statement = ctor.body.statements[0];
+ if (statement && statement.kind === 195 /* ExpressionStatement */) {
+ var expr = statement.expression;
+ if (expr && expr.kind === 168 /* CallExpression */) {
+ var func = expr.expression;
+ if (func && func.kind === 95 /* SuperKeyword */) {
+ return statement;
+ }
+ }
+ }
+ }
+ }
+ function emitParameterPropertyAssignments(node) {
+ ts.forEach(node.parameters, function (param) {
+ if (param.flags & 112 /* AccessibilityModifier */) {
+ writeLine();
+ emitStart(param);
+ emitStart(param.name);
+ write("this.");
+ emitNodeWithoutSourceMap(param.name);
+ emitEnd(param.name);
+ write(" = ");
+ emit(param.name);
+ write(";");
+ emitEnd(param);
+ }
+ });
+ }
+ function emitMemberAccessForPropertyName(memberName) {
+ // This does not emit source map because it is emitted by caller as caller
+ // is aware how the property name changes to the property access
+ // eg. public x = 10; becomes this.x and static x = 10 becomes className.x
+ if (memberName.kind === 9 /* StringLiteral */ || memberName.kind === 8 /* NumericLiteral */) {
+ write("[");
+ emitNodeWithCommentsAndWithoutSourcemap(memberName);
+ write("]");
+ }
+ else if (memberName.kind === 136 /* ComputedPropertyName */) {
+ emitComputedPropertyName(memberName);
+ }
+ else {
+ write(".");
+ emitNodeWithCommentsAndWithoutSourcemap(memberName);
+ }
+ }
+ function getInitializedProperties(node, isStatic) {
+ var properties = [];
+ for (var _a = 0, _b = node.members; _a < _b.length; _a++) {
+ var member = _b[_a];
+ if (member.kind === 141 /* PropertyDeclaration */ && isStatic === ((member.flags & 128 /* Static */) !== 0) && member.initializer) {
+ properties.push(member);
+ }
+ }
+ return properties;
+ }
+ function emitPropertyDeclarations(node, properties) {
+ for (var _a = 0; _a < properties.length; _a++) {
+ var property = properties[_a];
+ emitPropertyDeclaration(node, property);
+ }
+ }
+ function emitPropertyDeclaration(node, property, receiver, isExpression) {
+ writeLine();
+ emitLeadingComments(property);
+ emitStart(property);
+ emitStart(property.name);
+ if (receiver) {
+ emit(receiver);
+ }
+ else {
+ if (property.flags & 128 /* Static */) {
+ emitDeclarationName(node);
+ }
+ else {
+ write("this");
+ }
+ }
+ emitMemberAccessForPropertyName(property.name);
+ emitEnd(property.name);
+ write(" = ");
+ emit(property.initializer);
+ if (!isExpression) {
+ write(";");
+ }
+ emitEnd(property);
+ emitTrailingComments(property);
+ }
+ function emitMemberFunctionsForES5AndLower(node) {
+ ts.forEach(node.members, function (member) {
+ if (member.kind === 191 /* SemicolonClassElement */) {
+ writeLine();
+ write(";");
+ }
+ else if (member.kind === 143 /* MethodDeclaration */ || node.kind === 142 /* MethodSignature */) {
+ if (!member.body) {
+ return emitCommentsOnNotEmittedNode(member);
+ }
+ writeLine();
+ emitLeadingComments(member);
+ emitStart(member);
+ emitStart(member.name);
+ emitClassMemberPrefix(node, member);
+ emitMemberAccessForPropertyName(member.name);
+ emitEnd(member.name);
+ write(" = ");
+ emitFunctionDeclaration(member);
+ emitEnd(member);
+ write(";");
+ emitTrailingComments(member);
+ }
+ else if (member.kind === 145 /* GetAccessor */ || member.kind === 146 /* SetAccessor */) {
+ var accessors = ts.getAllAccessorDeclarations(node.members, member);
+ if (member === accessors.firstAccessor) {
+ writeLine();
+ emitStart(member);
+ write("Object.defineProperty(");
+ emitStart(member.name);
+ emitClassMemberPrefix(node, member);
+ write(", ");
+ emitExpressionForPropertyName(member.name);
+ emitEnd(member.name);
+ write(", {");
+ increaseIndent();
+ if (accessors.getAccessor) {
+ writeLine();
+ emitLeadingComments(accessors.getAccessor);
+ write("get: ");
+ emitStart(accessors.getAccessor);
+ write("function ");
+ emitSignatureAndBody(accessors.getAccessor);
+ emitEnd(accessors.getAccessor);
+ emitTrailingComments(accessors.getAccessor);
+ write(",");
+ }
+ if (accessors.setAccessor) {
+ writeLine();
+ emitLeadingComments(accessors.setAccessor);
+ write("set: ");
+ emitStart(accessors.setAccessor);
+ write("function ");
+ emitSignatureAndBody(accessors.setAccessor);
+ emitEnd(accessors.setAccessor);
+ emitTrailingComments(accessors.setAccessor);
+ write(",");
+ }
+ writeLine();
+ write("enumerable: true,");
+ writeLine();
+ write("configurable: true");
+ decreaseIndent();
+ writeLine();
+ write("});");
+ emitEnd(member);
+ }
+ }
+ });
+ }
+ function emitMemberFunctionsForES6AndHigher(node) {
+ for (var _a = 0, _b = node.members; _a < _b.length; _a++) {
+ var member = _b[_a];
+ if ((member.kind === 143 /* MethodDeclaration */ || node.kind === 142 /* MethodSignature */) && !member.body) {
+ emitCommentsOnNotEmittedNode(member);
+ }
+ else if (member.kind === 143 /* MethodDeclaration */ ||
+ member.kind === 145 /* GetAccessor */ ||
+ member.kind === 146 /* SetAccessor */) {
+ writeLine();
+ emitLeadingComments(member);
+ emitStart(member);
+ if (member.flags & 128 /* Static */) {
+ write("static ");
+ }
+ if (member.kind === 145 /* GetAccessor */) {
+ write("get ");
+ }
+ else if (member.kind === 146 /* SetAccessor */) {
+ write("set ");
+ }
+ if (member.asteriskToken) {
+ write("*");
+ }
+ emit(member.name);
+ emitSignatureAndBody(member);
+ emitEnd(member);
+ emitTrailingComments(member);
+ }
+ else if (member.kind === 191 /* SemicolonClassElement */) {
+ writeLine();
+ write(";");
+ }
+ }
+ }
+ function emitConstructor(node, baseTypeElement) {
+ var saveTempFlags = tempFlags;
+ var saveTempVariables = tempVariables;
+ var saveTempParameters = tempParameters;
+ tempFlags = 0;
+ tempVariables = undefined;
+ tempParameters = undefined;
+ emitConstructorWorker(node, baseTypeElement);
+ tempFlags = saveTempFlags;
+ tempVariables = saveTempVariables;
+ tempParameters = saveTempParameters;
+ }
+ function emitConstructorWorker(node, baseTypeElement) {
+ // Check if we have property assignment inside class declaration.
+ // If there is property assignment, we need to emit constructor whether users define it or not
+ // If there is no property assignment, we can omit constructor if users do not define it
+ var hasInstancePropertyWithInitializer = false;
+ // Emit the constructor overload pinned comments
+ ts.forEach(node.members, function (member) {
+ if (member.kind === 144 /* Constructor */ && !member.body) {
+ emitCommentsOnNotEmittedNode(member);
+ }
+ // Check if there is any non-static property assignment
+ if (member.kind === 141 /* PropertyDeclaration */ && member.initializer && (member.flags & 128 /* Static */) === 0) {
+ hasInstancePropertyWithInitializer = true;
+ }
+ });
+ var ctor = ts.getFirstConstructorWithBody(node);
+ // For target ES6 and above, if there is no user-defined constructor and there is no property assignment
+ // do not emit constructor in class declaration.
+ if (languageVersion >= 2 /* ES6 */ && !ctor && !hasInstancePropertyWithInitializer) {
+ return;
+ }
+ if (ctor) {
+ emitLeadingComments(ctor);
+ }
+ emitStart(ctor || node);
+ if (languageVersion < 2 /* ES6 */) {
+ write("function ");
+ emitDeclarationName(node);
+ emitSignatureParameters(ctor);
+ }
+ else {
+ write("constructor");
+ if (ctor) {
+ emitSignatureParameters(ctor);
+ }
+ else {
+ // Based on EcmaScript6 section 14.5.14: Runtime Semantics: ClassDefinitionEvaluation.
+ // If constructor is empty, then,
+ // If ClassHeritageopt is present, then
+ // Let constructor be the result of parsing the String "constructor(... args){ super (...args);}" using the syntactic grammar with the goal symbol MethodDefinition.
+ // Else,
+ // Let constructor be the result of parsing the String "constructor( ){ }" using the syntactic grammar with the goal symbol MethodDefinition
+ if (baseTypeElement) {
+ write("(...args)");
+ }
+ else {
+ write("()");
+ }
+ }
+ }
+ var startIndex = 0;
+ write(" {");
+ scopeEmitStart(node, "constructor");
+ increaseIndent();
+ if (ctor) {
+ // Emit all the directive prologues (like "use strict"). These have to come before
+ // any other preamble code we write (like parameter initializers).
+ startIndex = emitDirectivePrologues(ctor.body.statements, /*startWithNewLine*/ true);
+ emitDetachedComments(ctor.body.statements);
+ }
+ emitCaptureThisForNodeIfNecessary(node);
+ var superCall;
+ if (ctor) {
+ emitDefaultValueAssignments(ctor);
+ emitRestParameter(ctor);
+ if (baseTypeElement) {
+ superCall = findInitialSuperCall(ctor);
+ if (superCall) {
+ writeLine();
+ emit(superCall);
+ }
+ }
+ emitParameterPropertyAssignments(ctor);
+ }
+ else {
+ if (baseTypeElement) {
+ writeLine();
+ emitStart(baseTypeElement);
+ if (languageVersion < 2 /* ES6 */) {
+ write("_super.apply(this, arguments);");
+ }
+ else {
+ write("super(...args);");
+ }
+ emitEnd(baseTypeElement);
+ }
+ }
+ emitPropertyDeclarations(node, getInitializedProperties(node, /*static:*/ false));
+ if (ctor) {
+ var statements = ctor.body.statements;
+ if (superCall) {
+ statements = statements.slice(1);
+ }
+ emitLinesStartingAt(statements, startIndex);
+ }
+ emitTempDeclarations(/*newLine*/ true);
+ writeLine();
+ if (ctor) {
+ emitLeadingCommentsOfPosition(ctor.body.statements.end);
+ }
+ decreaseIndent();
+ emitToken(16 /* CloseBraceToken */, ctor ? ctor.body.statements.end : node.members.end);
+ scopeEmitEnd();
+ emitEnd(ctor || node);
+ if (ctor) {
+ emitTrailingComments(ctor);
+ }
+ }
+ function emitClassExpression(node) {
+ return emitClassLikeDeclaration(node);
+ }
+ function emitClassDeclaration(node) {
+ return emitClassLikeDeclaration(node);
+ }
+ function emitClassLikeDeclaration(node) {
+ if (languageVersion < 2 /* ES6 */) {
+ emitClassLikeDeclarationBelowES6(node);
+ }
+ else {
+ emitClassLikeDeclarationForES6AndHigher(node);
+ }
+ if (modulekind !== 5 /* ES6 */ && node.parent === currentSourceFile && node.name) {
+ emitExportMemberAssignments(node.name);
+ }
+ }
+ function emitClassLikeDeclarationForES6AndHigher(node) {
+ var thisNodeIsDecorated = ts.nodeIsDecorated(node);
+ if (node.kind === 214 /* ClassDeclaration */) {
+ if (thisNodeIsDecorated) {
+ // To preserve the correct runtime semantics when decorators are applied to the class,
+ // the emit needs to follow one of the following rules:
+ //
+ // * For a local class declaration:
+ //
+ // @dec class C {
+ // }
+ //
+ // The emit should be:
+ //
+ // let C = class {
+ // };
+ // C = __decorate([dec], C);
+ //
+ // * For an exported class declaration:
+ //
+ // @dec export class C {
+ // }
+ //
+ // The emit should be:
+ //
+ // export let C = class {
+ // };
+ // C = __decorate([dec], C);
+ //
+ // * For a default export of a class declaration with a name:
+ //
+ // @dec default export class C {
+ // }
+ //
+ // The emit should be:
+ //
+ // let C = class {
+ // }
+ // C = __decorate([dec], C);
+ // export default C;
+ //
+ // * For a default export of a class declaration without a name:
+ //
+ // @dec default export class {
+ // }
+ //
+ // The emit should be:
+ //
+ // let _default = class {
+ // }
+ // _default = __decorate([dec], _default);
+ // export default _default;
+ //
+ if (isES6ExportedDeclaration(node) && !(node.flags & 1024 /* Default */)) {
+ write("export ");
+ }
+ write("let ");
+ emitDeclarationName(node);
+ write(" = ");
+ }
+ else if (isES6ExportedDeclaration(node)) {
+ write("export ");
+ if (node.flags & 1024 /* Default */) {
+ write("default ");
+ }
+ }
+ }
+ // If the class has static properties, and it's a class expression, then we'll need
+ // to specialize the emit a bit. for a class expression of the form:
+ //
+ // class C { static a = 1; static b = 2; ... }
+ //
+ // We'll emit:
+ //
+ // (_temp = class C { ... }, _temp.a = 1, _temp.b = 2, _temp)
+ //
+ // This keeps the expression as an expression, while ensuring that the static parts
+ // of it have been initialized by the time it is used.
+ var staticProperties = getInitializedProperties(node, /*static:*/ true);
+ var isClassExpressionWithStaticProperties = staticProperties.length > 0 && node.kind === 186 /* ClassExpression */;
+ var tempVariable;
+ if (isClassExpressionWithStaticProperties) {
+ tempVariable = createAndRecordTempVariable(0 /* Auto */);
+ write("(");
+ increaseIndent();
+ emit(tempVariable);
+ write(" = ");
+ }
+ write("class");
+ // emit name if
+ // - node has a name
+ // - this is default export with static initializers
+ if ((node.name || (node.flags & 1024 /* Default */ && staticProperties.length > 0)) && !thisNodeIsDecorated) {
+ write(" ");
+ emitDeclarationName(node);
+ }
+ var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
+ if (baseTypeNode) {
+ write(" extends ");
+ emit(baseTypeNode.expression);
+ }
+ write(" {");
+ increaseIndent();
+ scopeEmitStart(node);
+ writeLine();
+ emitConstructor(node, baseTypeNode);
+ emitMemberFunctionsForES6AndHigher(node);
+ decreaseIndent();
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.members.end);
+ scopeEmitEnd();
+ // TODO(rbuckton): Need to go back to `let _a = class C {}` approach, removing the defineProperty call for now.
+ // For a decorated class, we need to assign its name (if it has one). This is because we emit
+ // the class as a class expression to avoid the double-binding of the identifier:
+ //
+ // let C = class {
+ // }
+ // Object.defineProperty(C, "name", { value: "C", configurable: true });
+ //
+ if (thisNodeIsDecorated) {
+ write(";");
+ }
+ // Emit static property assignment. Because classDeclaration is lexically evaluated,
+ // it is safe to emit static property assignment after classDeclaration
+ // From ES6 specification:
+ // HasLexicalDeclaration (N) : Determines if the argument identifier has a binding in this environment record that was created using
+ // a lexical declaration such as a LexicalDeclaration or a ClassDeclaration.
+ if (isClassExpressionWithStaticProperties) {
+ for (var _a = 0; _a < staticProperties.length; _a++) {
+ var property = staticProperties[_a];
+ write(",");
+ writeLine();
+ emitPropertyDeclaration(node, property, /*receiver:*/ tempVariable, /*isExpression:*/ true);
+ }
+ write(",");
+ writeLine();
+ emit(tempVariable);
+ decreaseIndent();
+ write(")");
+ }
+ else {
+ writeLine();
+ emitPropertyDeclarations(node, staticProperties);
+ emitDecoratorsOfClass(node);
+ }
+ // If this is an exported class, but not on the top level (i.e. on an internal
+ // module), export it
+ if (!isES6ExportedDeclaration(node) && (node.flags & 1 /* Export */)) {
+ writeLine();
+ emitStart(node);
+ emitModuleMemberName(node);
+ write(" = ");
+ emitDeclarationName(node);
+ emitEnd(node);
+ write(";");
+ }
+ else if (isES6ExportedDeclaration(node) && (node.flags & 1024 /* Default */) && thisNodeIsDecorated) {
+ // if this is a top level default export of decorated class, write the export after the declaration.
+ writeLine();
+ write("export default ");
+ emitDeclarationName(node);
+ write(";");
+ }
+ }
+ function emitClassLikeDeclarationBelowES6(node) {
+ if (node.kind === 214 /* ClassDeclaration */) {
+ // source file level classes in system modules are hoisted so 'var's for them are already defined
+ if (!shouldHoistDeclarationInSystemJsModule(node)) {
+ write("var ");
+ }
+ emitDeclarationName(node);
+ write(" = ");
+ }
+ write("(function (");
+ var baseTypeNode = ts.getClassExtendsHeritageClauseElement(node);
+ if (baseTypeNode) {
+ write("_super");
+ }
+ write(") {");
+ var saveTempFlags = tempFlags;
+ var saveTempVariables = tempVariables;
+ var saveTempParameters = tempParameters;
+ var saveComputedPropertyNamesToGeneratedNames = computedPropertyNamesToGeneratedNames;
+ tempFlags = 0;
+ tempVariables = undefined;
+ tempParameters = undefined;
+ computedPropertyNamesToGeneratedNames = undefined;
+ increaseIndent();
+ scopeEmitStart(node);
+ if (baseTypeNode) {
+ writeLine();
+ emitStart(baseTypeNode);
+ write("__extends(");
+ emitDeclarationName(node);
+ write(", _super);");
+ emitEnd(baseTypeNode);
+ }
+ writeLine();
+ emitConstructor(node, baseTypeNode);
+ emitMemberFunctionsForES5AndLower(node);
+ emitPropertyDeclarations(node, getInitializedProperties(node, /*static:*/ true));
+ writeLine();
+ emitDecoratorsOfClass(node);
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.members.end, function () {
+ write("return ");
+ emitDeclarationName(node);
+ });
+ write(";");
+ emitTempDeclarations(/*newLine*/ true);
+ tempFlags = saveTempFlags;
+ tempVariables = saveTempVariables;
+ tempParameters = saveTempParameters;
+ computedPropertyNamesToGeneratedNames = saveComputedPropertyNamesToGeneratedNames;
+ decreaseIndent();
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.members.end);
+ scopeEmitEnd();
+ emitStart(node);
+ write(")(");
+ if (baseTypeNode) {
+ emit(baseTypeNode.expression);
+ }
+ write(")");
+ if (node.kind === 214 /* ClassDeclaration */) {
+ write(";");
+ }
+ emitEnd(node);
+ if (node.kind === 214 /* ClassDeclaration */) {
+ emitExportMemberAssignment(node);
+ }
+ }
+ function emitClassMemberPrefix(node, member) {
+ emitDeclarationName(node);
+ if (!(member.flags & 128 /* Static */)) {
+ write(".prototype");
+ }
+ }
+ function emitDecoratorsOfClass(node) {
+ emitDecoratorsOfMembers(node, /*staticFlag*/ 0);
+ emitDecoratorsOfMembers(node, 128 /* Static */);
+ emitDecoratorsOfConstructor(node);
+ }
+ function emitDecoratorsOfConstructor(node) {
+ var decorators = node.decorators;
+ var constructor = ts.getFirstConstructorWithBody(node);
+ var hasDecoratedParameters = constructor && ts.forEach(constructor.parameters, ts.nodeIsDecorated);
+ // skip decoration of the constructor if neither it nor its parameters are decorated
+ if (!decorators && !hasDecoratedParameters) {
+ return;
+ }
+ // Emit the call to __decorate. Given the class:
+ //
+ // @dec
+ // class C {
+ // }
+ //
+ // The emit for the class is:
+ //
+ // C = __decorate([dec], C);
+ //
+ writeLine();
+ emitStart(node);
+ emitDeclarationName(node);
+ write(" = __decorate([");
+ increaseIndent();
+ writeLine();
+ var decoratorCount = decorators ? decorators.length : 0;
+ var argumentsWritten = emitList(decorators, 0, decoratorCount, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ false, /*noTrailingNewLine*/ true, function (decorator) {
+ emitStart(decorator);
+ emit(decorator.expression);
+ emitEnd(decorator);
+ });
+ argumentsWritten += emitDecoratorsOfParameters(constructor, /*leadingComma*/ argumentsWritten > 0);
+ emitSerializedTypeMetadata(node, /*leadingComma*/ argumentsWritten >= 0);
+ decreaseIndent();
+ writeLine();
+ write("], ");
+ emitDeclarationName(node);
+ write(");");
+ emitEnd(node);
+ writeLine();
+ }
+ function emitDecoratorsOfMembers(node, staticFlag) {
+ for (var _a = 0, _b = node.members; _a < _b.length; _a++) {
+ var member = _b[_a];
+ // only emit members in the correct group
+ if ((member.flags & 128 /* Static */) !== staticFlag) {
+ continue;
+ }
+ // skip members that cannot be decorated (such as the constructor)
+ if (!ts.nodeCanBeDecorated(member)) {
+ continue;
+ }
+ // skip a member if it or any of its parameters are not decorated
+ if (!ts.nodeOrChildIsDecorated(member)) {
+ continue;
+ }
+ // skip an accessor declaration if it is not the first accessor
+ var decorators = void 0;
+ var functionLikeMember = void 0;
+ if (ts.isAccessor(member)) {
+ var accessors = ts.getAllAccessorDeclarations(node.members, member);
+ if (member !== accessors.firstAccessor) {
+ continue;
+ }
+ // get the decorators from the first accessor with decorators
+ decorators = accessors.firstAccessor.decorators;
+ if (!decorators && accessors.secondAccessor) {
+ decorators = accessors.secondAccessor.decorators;
+ }
+ // we only decorate parameters of the set accessor
+ functionLikeMember = accessors.setAccessor;
+ }
+ else {
+ decorators = member.decorators;
+ // we only decorate the parameters here if this is a method
+ if (member.kind === 143 /* MethodDeclaration */) {
+ functionLikeMember = member;
+ }
+ }
+ // Emit the call to __decorate. Given the following:
+ //
+ // class C {
+ // @dec method(@dec2 x) {}
+ // @dec get accessor() {}
+ // @dec prop;
+ // }
+ //
+ // The emit for a method is:
+ //
+ // __decorate([
+ // dec,
+ // __param(0, dec2),
+ // __metadata("design:type", Function),
+ // __metadata("design:paramtypes", [Object]),
+ // __metadata("design:returntype", void 0)
+ // ], C.prototype, "method", undefined);
+ //
+ // The emit for an accessor is:
+ //
+ // __decorate([
+ // dec
+ // ], C.prototype, "accessor", undefined);
+ //
+ // The emit for a property is:
+ //
+ // __decorate([
+ // dec
+ // ], C.prototype, "prop");
+ //
+ writeLine();
+ emitStart(member);
+ write("__decorate([");
+ increaseIndent();
+ writeLine();
+ var decoratorCount = decorators ? decorators.length : 0;
+ var argumentsWritten = emitList(decorators, 0, decoratorCount, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ false, /*noTrailingNewLine*/ true, function (decorator) {
+ emitStart(decorator);
+ emit(decorator.expression);
+ emitEnd(decorator);
+ });
+ argumentsWritten += emitDecoratorsOfParameters(functionLikeMember, argumentsWritten > 0);
+ emitSerializedTypeMetadata(member, argumentsWritten > 0);
+ decreaseIndent();
+ writeLine();
+ write("], ");
+ emitStart(member.name);
+ emitClassMemberPrefix(node, member);
+ write(", ");
+ emitExpressionForPropertyName(member.name);
+ emitEnd(member.name);
+ if (languageVersion > 0 /* ES3 */) {
+ if (member.kind !== 141 /* PropertyDeclaration */) {
+ // We emit `null` here to indicate to `__decorate` that it can invoke `Object.getOwnPropertyDescriptor` directly.
+ // We have this extra argument here so that we can inject an explicit property descriptor at a later date.
+ write(", null");
+ }
+ else {
+ // We emit `void 0` here to indicate to `__decorate` that it can invoke `Object.defineProperty` directly, but that it
+ // should not invoke `Object.getOwnPropertyDescriptor`.
+ write(", void 0");
+ }
+ }
+ write(");");
+ emitEnd(member);
+ writeLine();
+ }
+ }
+ function emitDecoratorsOfParameters(node, leadingComma) {
+ var argumentsWritten = 0;
+ if (node) {
+ var parameterIndex = 0;
+ for (var _a = 0, _b = node.parameters; _a < _b.length; _a++) {
+ var parameter = _b[_a];
+ if (ts.nodeIsDecorated(parameter)) {
+ var decorators = parameter.decorators;
+ argumentsWritten += emitList(decorators, 0, decorators.length, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ leadingComma, /*noTrailingNewLine*/ true, function (decorator) {
+ emitStart(decorator);
+ write("__param(" + parameterIndex + ", ");
+ emit(decorator.expression);
+ write(")");
+ emitEnd(decorator);
+ });
+ leadingComma = true;
+ }
+ ++parameterIndex;
+ }
+ }
+ return argumentsWritten;
+ }
+ function shouldEmitTypeMetadata(node) {
+ // This method determines whether to emit the "design:type" metadata based on the node's kind.
+ // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata
+ // compiler option is set.
+ switch (node.kind) {
+ case 143 /* MethodDeclaration */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 141 /* PropertyDeclaration */:
+ return true;
+ }
+ return false;
+ }
+ function shouldEmitReturnTypeMetadata(node) {
+ // This method determines whether to emit the "design:returntype" metadata based on the node's kind.
+ // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata
+ // compiler option is set.
+ switch (node.kind) {
+ case 143 /* MethodDeclaration */:
+ return true;
+ }
+ return false;
+ }
+ function shouldEmitParamTypesMetadata(node) {
+ // This method determines whether to emit the "design:paramtypes" metadata based on the node's kind.
+ // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata
+ // compiler option is set.
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 146 /* SetAccessor */:
+ return true;
+ }
+ return false;
+ }
+ /** Serializes the type of a declaration to an appropriate JS constructor value. Used by the __metadata decorator for a class member. */
+ function emitSerializedTypeOfNode(node) {
+ // serialization of the type of a declaration uses the following rules:
+ //
+ // * The serialized type of a ClassDeclaration is "Function"
+ // * The serialized type of a ParameterDeclaration is the serialized type of its type annotation.
+ // * The serialized type of a PropertyDeclaration is the serialized type of its type annotation.
+ // * The serialized type of an AccessorDeclaration is the serialized type of the return type annotation of its getter or parameter type annotation of its setter.
+ // * The serialized type of any other FunctionLikeDeclaration is "Function".
+ // * The serialized type of any other node is "void 0".
+ //
+ // For rules on serializing type annotations, see `serializeTypeNode`.
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ write("Function");
+ return;
+ case 141 /* PropertyDeclaration */:
+ emitSerializedTypeNode(node.type);
+ return;
+ case 138 /* Parameter */:
+ emitSerializedTypeNode(node.type);
+ return;
+ case 145 /* GetAccessor */:
+ emitSerializedTypeNode(node.type);
+ return;
+ case 146 /* SetAccessor */:
+ emitSerializedTypeNode(ts.getSetAccessorTypeAnnotationNode(node));
+ return;
+ }
+ if (ts.isFunctionLike(node)) {
+ write("Function");
+ return;
+ }
+ write("void 0");
+ }
+ function emitSerializedTypeNode(node) {
+ if (node) {
+ switch (node.kind) {
+ case 103 /* VoidKeyword */:
+ write("void 0");
+ return;
+ case 160 /* ParenthesizedType */:
+ emitSerializedTypeNode(node.type);
+ return;
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ write("Function");
+ return;
+ case 156 /* ArrayType */:
+ case 157 /* TupleType */:
+ write("Array");
+ return;
+ case 150 /* TypePredicate */:
+ case 120 /* BooleanKeyword */:
+ write("Boolean");
+ return;
+ case 130 /* StringKeyword */:
+ case 9 /* StringLiteral */:
+ write("String");
+ return;
+ case 128 /* NumberKeyword */:
+ write("Number");
+ return;
+ case 131 /* SymbolKeyword */:
+ write("Symbol");
+ return;
+ case 151 /* TypeReference */:
+ emitSerializedTypeReferenceNode(node);
+ return;
+ case 154 /* TypeQuery */:
+ case 155 /* TypeLiteral */:
+ case 158 /* UnionType */:
+ case 159 /* IntersectionType */:
+ case 117 /* AnyKeyword */:
+ break;
+ default:
+ ts.Debug.fail("Cannot serialize unexpected type node.");
+ break;
+ }
+ }
+ write("Object");
+ }
+ /** Serializes a TypeReferenceNode to an appropriate JS constructor value. Used by the __metadata decorator. */
+ function emitSerializedTypeReferenceNode(node) {
+ var location = node.parent;
+ while (ts.isDeclaration(location) || ts.isTypeNode(location)) {
+ location = location.parent;
+ }
+ // Clone the type name and parent it to a location outside of the current declaration.
+ var typeName = ts.cloneEntityName(node.typeName);
+ typeName.parent = location;
+ var result = resolver.getTypeReferenceSerializationKind(typeName);
+ switch (result) {
+ case ts.TypeReferenceSerializationKind.Unknown:
+ var temp = createAndRecordTempVariable(0 /* Auto */);
+ write("(typeof (");
+ emitNodeWithoutSourceMap(temp);
+ write(" = ");
+ emitEntityNameAsExpression(typeName, /*useFallback*/ true);
+ write(") === 'function' && ");
+ emitNodeWithoutSourceMap(temp);
+ write(") || Object");
+ break;
+ case ts.TypeReferenceSerializationKind.TypeWithConstructSignatureAndValue:
+ emitEntityNameAsExpression(typeName, /*useFallback*/ false);
+ break;
+ case ts.TypeReferenceSerializationKind.VoidType:
+ write("void 0");
+ break;
+ case ts.TypeReferenceSerializationKind.BooleanType:
+ write("Boolean");
+ break;
+ case ts.TypeReferenceSerializationKind.NumberLikeType:
+ write("Number");
+ break;
+ case ts.TypeReferenceSerializationKind.StringLikeType:
+ write("String");
+ break;
+ case ts.TypeReferenceSerializationKind.ArrayLikeType:
+ write("Array");
+ break;
+ case ts.TypeReferenceSerializationKind.ESSymbolType:
+ if (languageVersion < 2 /* ES6 */) {
+ write("typeof Symbol === 'function' ? Symbol : Object");
+ }
+ else {
+ write("Symbol");
+ }
+ break;
+ case ts.TypeReferenceSerializationKind.TypeWithCallSignature:
+ write("Function");
+ break;
+ case ts.TypeReferenceSerializationKind.ObjectType:
+ write("Object");
+ break;
+ }
+ }
+ /** Serializes the parameter types of a function or the constructor of a class. Used by the __metadata decorator for a method or set accessor. */
+ function emitSerializedParameterTypesOfNode(node) {
+ // serialization of parameter types uses the following rules:
+ //
+ // * If the declaration is a class, the parameters of the first constructor with a body are used.
+ // * If the declaration is function-like and has a body, the parameters of the function are used.
+ //
+ // For the rules on serializing the type of each parameter declaration, see `serializeTypeOfDeclaration`.
+ if (node) {
+ var valueDeclaration;
+ if (node.kind === 214 /* ClassDeclaration */) {
+ valueDeclaration = ts.getFirstConstructorWithBody(node);
+ }
+ else if (ts.isFunctionLike(node) && ts.nodeIsPresent(node.body)) {
+ valueDeclaration = node;
+ }
+ if (valueDeclaration) {
+ var parameters = valueDeclaration.parameters;
+ var parameterCount = parameters.length;
+ if (parameterCount > 0) {
+ for (var i = 0; i < parameterCount; i++) {
+ if (i > 0) {
+ write(", ");
+ }
+ if (parameters[i].dotDotDotToken) {
+ var parameterType = parameters[i].type;
+ if (parameterType.kind === 156 /* ArrayType */) {
+ parameterType = parameterType.elementType;
+ }
+ else if (parameterType.kind === 151 /* TypeReference */ && parameterType.typeArguments && parameterType.typeArguments.length === 1) {
+ parameterType = parameterType.typeArguments[0];
+ }
+ else {
+ parameterType = undefined;
+ }
+ emitSerializedTypeNode(parameterType);
+ }
+ else {
+ emitSerializedTypeOfNode(parameters[i]);
+ }
+ }
+ }
+ }
+ }
+ }
+ /** Serializes the return type of function. Used by the __metadata decorator for a method. */
+ function emitSerializedReturnTypeOfNode(node) {
+ if (node && ts.isFunctionLike(node) && node.type) {
+ emitSerializedTypeNode(node.type);
+ return;
+ }
+ write("void 0");
+ }
+ function emitSerializedTypeMetadata(node, writeComma) {
+ // This method emits the serialized type metadata for a decorator target.
+ // The caller should have already tested whether the node has decorators.
+ var argumentsWritten = 0;
+ if (compilerOptions.emitDecoratorMetadata) {
+ if (shouldEmitTypeMetadata(node)) {
+ if (writeComma) {
+ write(", ");
+ }
+ writeLine();
+ write("__metadata('design:type', ");
+ emitSerializedTypeOfNode(node);
+ write(")");
+ argumentsWritten++;
+ }
+ if (shouldEmitParamTypesMetadata(node)) {
+ if (writeComma || argumentsWritten) {
+ write(", ");
+ }
+ writeLine();
+ write("__metadata('design:paramtypes', [");
+ emitSerializedParameterTypesOfNode(node);
+ write("])");
+ argumentsWritten++;
+ }
+ if (shouldEmitReturnTypeMetadata(node)) {
+ if (writeComma || argumentsWritten) {
+ write(", ");
+ }
+ writeLine();
+ write("__metadata('design:returntype', ");
+ emitSerializedReturnTypeOfNode(node);
+ write(")");
+ argumentsWritten++;
+ }
+ }
+ return argumentsWritten;
+ }
+ function emitInterfaceDeclaration(node) {
+ emitCommentsOnNotEmittedNode(node);
+ }
+ function shouldEmitEnumDeclaration(node) {
+ var isConstEnum = ts.isConst(node);
+ return !isConstEnum || compilerOptions.preserveConstEnums || compilerOptions.isolatedModules;
+ }
+ function emitEnumDeclaration(node) {
+ // const enums are completely erased during compilation.
+ if (!shouldEmitEnumDeclaration(node)) {
+ return;
+ }
+ if (!shouldHoistDeclarationInSystemJsModule(node)) {
+ // do not emit var if variable was already hoisted
+ if (!(node.flags & 1 /* Export */) || isES6ExportedDeclaration(node)) {
+ emitStart(node);
+ if (isES6ExportedDeclaration(node)) {
+ write("export ");
+ }
+ write("var ");
+ emit(node.name);
+ emitEnd(node);
+ write(";");
+ }
+ }
+ writeLine();
+ emitStart(node);
+ write("(function (");
+ emitStart(node.name);
+ write(getGeneratedNameForNode(node));
+ emitEnd(node.name);
+ write(") {");
+ increaseIndent();
+ scopeEmitStart(node);
+ emitLines(node.members);
+ decreaseIndent();
+ writeLine();
+ emitToken(16 /* CloseBraceToken */, node.members.end);
+ scopeEmitEnd();
+ write(")(");
+ emitModuleMemberName(node);
+ write(" || (");
+ emitModuleMemberName(node);
+ write(" = {}));");
+ emitEnd(node);
+ if (!isES6ExportedDeclaration(node) && node.flags & 1 /* Export */ && !shouldHoistDeclarationInSystemJsModule(node)) {
+ // do not emit var if variable was already hoisted
+ writeLine();
+ emitStart(node);
+ write("var ");
+ emit(node.name);
+ write(" = ");
+ emitModuleMemberName(node);
+ emitEnd(node);
+ write(";");
+ }
+ if (modulekind !== 5 /* ES6 */ && node.parent === currentSourceFile) {
+ if (modulekind === 4 /* System */ && (node.flags & 1 /* Export */)) {
+ // write the call to exporter for enum
+ writeLine();
+ write(exportFunctionForFile + "(\"");
+ emitDeclarationName(node);
+ write("\", ");
+ emitDeclarationName(node);
+ write(");");
+ }
+ emitExportMemberAssignments(node.name);
+ }
+ }
+ function emitEnumMember(node) {
+ var enumParent = node.parent;
+ emitStart(node);
+ write(getGeneratedNameForNode(enumParent));
+ write("[");
+ write(getGeneratedNameForNode(enumParent));
+ write("[");
+ emitExpressionForPropertyName(node.name);
+ write("] = ");
+ writeEnumMemberDeclarationValue(node);
+ write("] = ");
+ emitExpressionForPropertyName(node.name);
+ emitEnd(node);
+ write(";");
+ }
+ function writeEnumMemberDeclarationValue(member) {
+ var value = resolver.getConstantValue(member);
+ if (value !== undefined) {
+ write(value.toString());
+ return;
+ }
+ else if (member.initializer) {
+ emit(member.initializer);
+ }
+ else {
+ write("undefined");
+ }
+ }
+ function getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration) {
+ if (moduleDeclaration.body.kind === 218 /* ModuleDeclaration */) {
+ var recursiveInnerModule = getInnerMostModuleDeclarationFromDottedModule(moduleDeclaration.body);
+ return recursiveInnerModule || moduleDeclaration.body;
+ }
+ }
+ function shouldEmitModuleDeclaration(node) {
+ return ts.isInstantiatedModule(node, compilerOptions.preserveConstEnums || compilerOptions.isolatedModules);
+ }
+ function isModuleMergedWithES6Class(node) {
+ return languageVersion === 2 /* ES6 */ && !!(resolver.getNodeCheckFlags(node) & 32768 /* LexicalModuleMergesWithClass */);
+ }
+ function emitModuleDeclaration(node) {
+ // Emit only if this module is non-ambient.
+ var shouldEmit = shouldEmitModuleDeclaration(node);
+ if (!shouldEmit) {
+ return emitCommentsOnNotEmittedNode(node);
+ }
+ var hoistedInDeclarationScope = shouldHoistDeclarationInSystemJsModule(node);
+ var emitVarForModule = !hoistedInDeclarationScope && !isModuleMergedWithES6Class(node);
+ if (emitVarForModule) {
+ emitStart(node);
+ if (isES6ExportedDeclaration(node)) {
+ write("export ");
+ }
+ write("var ");
+ emit(node.name);
+ write(";");
+ emitEnd(node);
+ writeLine();
+ }
+ emitStart(node);
+ write("(function (");
+ emitStart(node.name);
+ write(getGeneratedNameForNode(node));
+ emitEnd(node.name);
+ write(") ");
+ if (node.body.kind === 219 /* ModuleBlock */) {
+ var saveTempFlags = tempFlags;
+ var saveTempVariables = tempVariables;
+ tempFlags = 0;
+ tempVariables = undefined;
+ emit(node.body);
+ tempFlags = saveTempFlags;
+ tempVariables = saveTempVariables;
+ }
+ else {
+ write("{");
+ increaseIndent();
+ scopeEmitStart(node);
+ emitCaptureThisForNodeIfNecessary(node);
+ writeLine();
+ emit(node.body);
+ decreaseIndent();
+ writeLine();
+ var moduleBlock = getInnerMostModuleDeclarationFromDottedModule(node).body;
+ emitToken(16 /* CloseBraceToken */, moduleBlock.statements.end);
+ scopeEmitEnd();
+ }
+ write(")(");
+ // write moduleDecl = containingModule.m only if it is not exported es6 module member
+ if ((node.flags & 1 /* Export */) && !isES6ExportedDeclaration(node)) {
+ emit(node.name);
+ write(" = ");
+ }
+ emitModuleMemberName(node);
+ write(" || (");
+ emitModuleMemberName(node);
+ write(" = {}));");
+ emitEnd(node);
+ if (!isES6ExportedDeclaration(node) && node.name.kind === 69 /* Identifier */ && node.parent === currentSourceFile) {
+ if (modulekind === 4 /* System */ && (node.flags & 1 /* Export */)) {
+ writeLine();
+ write(exportFunctionForFile + "(\"");
+ emitDeclarationName(node);
+ write("\", ");
+ emitDeclarationName(node);
+ write(");");
+ }
+ emitExportMemberAssignments(node.name);
+ }
+ }
+ /*
+ * Some bundlers (SystemJS builder) sometimes want to rename dependencies.
+ * Here we check if alternative name was provided for a given moduleName and return it if possible.
+ */
+ function tryRenameExternalModule(moduleName) {
+ if (currentSourceFile.renamedDependencies && ts.hasProperty(currentSourceFile.renamedDependencies, moduleName.text)) {
+ return "\"" + currentSourceFile.renamedDependencies[moduleName.text] + "\"";
+ }
+ return undefined;
+ }
+ function emitRequire(moduleName) {
+ if (moduleName.kind === 9 /* StringLiteral */) {
+ write("require(");
+ var text = tryRenameExternalModule(moduleName);
+ if (text) {
+ write(text);
+ }
+ else {
+ emitStart(moduleName);
+ emitLiteral(moduleName);
+ emitEnd(moduleName);
+ }
+ emitToken(18 /* CloseParenToken */, moduleName.end);
+ }
+ else {
+ write("require()");
+ }
+ }
+ function getNamespaceDeclarationNode(node) {
+ if (node.kind === 221 /* ImportEqualsDeclaration */) {
+ return node;
+ }
+ var importClause = node.importClause;
+ if (importClause && importClause.namedBindings && importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ return importClause.namedBindings;
+ }
+ }
+ function isDefaultImport(node) {
+ return node.kind === 222 /* ImportDeclaration */ && node.importClause && !!node.importClause.name;
+ }
+ function emitExportImportAssignments(node) {
+ if (ts.isAliasSymbolDeclaration(node) && resolver.isValueAliasDeclaration(node)) {
+ emitExportMemberAssignments(node.name);
+ }
+ ts.forEachChild(node, emitExportImportAssignments);
+ }
+ function emitImportDeclaration(node) {
+ if (modulekind !== 5 /* ES6 */) {
+ return emitExternalImportDeclaration(node);
+ }
+ // ES6 import
+ if (node.importClause) {
+ var shouldEmitDefaultBindings = resolver.isReferencedAliasDeclaration(node.importClause);
+ var shouldEmitNamedBindings = node.importClause.namedBindings && resolver.isReferencedAliasDeclaration(node.importClause.namedBindings, /* checkChildren */ true);
+ if (shouldEmitDefaultBindings || shouldEmitNamedBindings) {
+ write("import ");
+ emitStart(node.importClause);
+ if (shouldEmitDefaultBindings) {
+ emit(node.importClause.name);
+ if (shouldEmitNamedBindings) {
+ write(", ");
+ }
+ }
+ if (shouldEmitNamedBindings) {
+ emitLeadingComments(node.importClause.namedBindings);
+ emitStart(node.importClause.namedBindings);
+ if (node.importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ write("* as ");
+ emit(node.importClause.namedBindings.name);
+ }
+ else {
+ write("{ ");
+ emitExportOrImportSpecifierList(node.importClause.namedBindings.elements, resolver.isReferencedAliasDeclaration);
+ write(" }");
+ }
+ emitEnd(node.importClause.namedBindings);
+ emitTrailingComments(node.importClause.namedBindings);
+ }
+ emitEnd(node.importClause);
+ write(" from ");
+ emit(node.moduleSpecifier);
+ write(";");
+ }
+ }
+ else {
+ write("import ");
+ emit(node.moduleSpecifier);
+ write(";");
+ }
+ }
+ function emitExternalImportDeclaration(node) {
+ if (ts.contains(externalImports, node)) {
+ var isExportedImport = node.kind === 221 /* ImportEqualsDeclaration */ && (node.flags & 1 /* Export */) !== 0;
+ var namespaceDeclaration = getNamespaceDeclarationNode(node);
+ if (modulekind !== 2 /* AMD */) {
+ emitLeadingComments(node);
+ emitStart(node);
+ if (namespaceDeclaration && !isDefaultImport(node)) {
+ // import x = require("foo")
+ // import * as x from "foo"
+ if (!isExportedImport)
+ write("var ");
+ emitModuleMemberName(namespaceDeclaration);
+ write(" = ");
+ }
+ else {
+ // import "foo"
+ // import x from "foo"
+ // import { x, y } from "foo"
+ // import d, * as x from "foo"
+ // import d, { x, y } from "foo"
+ var isNakedImport = 222 /* ImportDeclaration */ && !node.importClause;
+ if (!isNakedImport) {
+ write("var ");
+ write(getGeneratedNameForNode(node));
+ write(" = ");
+ }
+ }
+ emitRequire(ts.getExternalModuleName(node));
+ if (namespaceDeclaration && isDefaultImport(node)) {
+ // import d, * as x from "foo"
+ write(", ");
+ emitModuleMemberName(namespaceDeclaration);
+ write(" = ");
+ write(getGeneratedNameForNode(node));
+ }
+ write(";");
+ emitEnd(node);
+ emitExportImportAssignments(node);
+ emitTrailingComments(node);
+ }
+ else {
+ if (isExportedImport) {
+ emitModuleMemberName(namespaceDeclaration);
+ write(" = ");
+ emit(namespaceDeclaration.name);
+ write(";");
+ }
+ else if (namespaceDeclaration && isDefaultImport(node)) {
+ // import d, * as x from "foo"
+ write("var ");
+ emitModuleMemberName(namespaceDeclaration);
+ write(" = ");
+ write(getGeneratedNameForNode(node));
+ write(";");
+ }
+ emitExportImportAssignments(node);
+ }
+ }
+ }
+ function emitImportEqualsDeclaration(node) {
+ if (ts.isExternalModuleImportEqualsDeclaration(node)) {
+ emitExternalImportDeclaration(node);
+ return;
+ }
+ // preserve old compiler's behavior: emit 'var' for import declaration (even if we do not consider them referenced) when
+ // - current file is not external module
+ // - import declaration is top level and target is value imported by entity name
+ if (resolver.isReferencedAliasDeclaration(node) ||
+ (!ts.isExternalModule(currentSourceFile) && resolver.isTopLevelValueImportEqualsWithEntityName(node))) {
+ emitLeadingComments(node);
+ emitStart(node);
+ // variable declaration for import-equals declaration can be hoisted in system modules
+ // in this case 'var' should be omitted and emit should contain only initialization
+ var variableDeclarationIsHoisted = shouldHoistVariable(node, /*checkIfSourceFileLevelDecl*/ true);
+ // is it top level export import v = a.b.c in system module?
+ // if yes - it needs to be rewritten as exporter('v', v = a.b.c)
+ var isExported = isSourceFileLevelDeclarationInSystemJsModule(node, /*isExported*/ true);
+ if (!variableDeclarationIsHoisted) {
+ ts.Debug.assert(!isExported);
+ if (isES6ExportedDeclaration(node)) {
+ write("export ");
+ write("var ");
+ }
+ else if (!(node.flags & 1 /* Export */)) {
+ write("var ");
+ }
+ }
+ if (isExported) {
+ write(exportFunctionForFile + "(\"");
+ emitNodeWithoutSourceMap(node.name);
+ write("\", ");
+ }
+ emitModuleMemberName(node);
+ write(" = ");
+ emit(node.moduleReference);
+ if (isExported) {
+ write(")");
+ }
+ write(";");
+ emitEnd(node);
+ emitExportImportAssignments(node);
+ emitTrailingComments(node);
+ }
+ }
+ function emitExportDeclaration(node) {
+ ts.Debug.assert(modulekind !== 4 /* System */);
+ if (modulekind !== 5 /* ES6 */) {
+ if (node.moduleSpecifier && (!node.exportClause || resolver.isValueAliasDeclaration(node))) {
+ emitStart(node);
+ var generatedName = getGeneratedNameForNode(node);
+ if (node.exportClause) {
+ // export { x, y, ... } from "foo"
+ if (modulekind !== 2 /* AMD */) {
+ write("var ");
+ write(generatedName);
+ write(" = ");
+ emitRequire(ts.getExternalModuleName(node));
+ write(";");
+ }
+ for (var _a = 0, _b = node.exportClause.elements; _a < _b.length; _a++) {
+ var specifier = _b[_a];
+ if (resolver.isValueAliasDeclaration(specifier)) {
+ writeLine();
+ emitStart(specifier);
+ emitContainingModuleName(specifier);
+ write(".");
+ emitNodeWithCommentsAndWithoutSourcemap(specifier.name);
+ write(" = ");
+ write(generatedName);
+ write(".");
+ emitNodeWithCommentsAndWithoutSourcemap(specifier.propertyName || specifier.name);
+ write(";");
+ emitEnd(specifier);
+ }
+ }
+ }
+ else {
+ // export * from "foo"
+ writeLine();
+ write("__export(");
+ if (modulekind !== 2 /* AMD */) {
+ emitRequire(ts.getExternalModuleName(node));
+ }
+ else {
+ write(generatedName);
+ }
+ write(");");
+ }
+ emitEnd(node);
+ }
+ }
+ else {
+ if (!node.exportClause || resolver.isValueAliasDeclaration(node)) {
+ write("export ");
+ if (node.exportClause) {
+ // export { x, y, ... }
+ write("{ ");
+ emitExportOrImportSpecifierList(node.exportClause.elements, resolver.isValueAliasDeclaration);
+ write(" }");
+ }
+ else {
+ write("*");
+ }
+ if (node.moduleSpecifier) {
+ write(" from ");
+ emit(node.moduleSpecifier);
+ }
+ write(";");
+ }
+ }
+ }
+ function emitExportOrImportSpecifierList(specifiers, shouldEmit) {
+ ts.Debug.assert(modulekind === 5 /* ES6 */);
+ var needsComma = false;
+ for (var _a = 0; _a < specifiers.length; _a++) {
+ var specifier = specifiers[_a];
+ if (shouldEmit(specifier)) {
+ if (needsComma) {
+ write(", ");
+ }
+ if (specifier.propertyName) {
+ emit(specifier.propertyName);
+ write(" as ");
+ }
+ emit(specifier.name);
+ needsComma = true;
+ }
+ }
+ }
+ function emitExportAssignment(node) {
+ if (!node.isExportEquals && resolver.isValueAliasDeclaration(node)) {
+ if (modulekind === 5 /* ES6 */) {
+ writeLine();
+ emitStart(node);
+ write("export default ");
+ var expression = node.expression;
+ emit(expression);
+ if (expression.kind !== 213 /* FunctionDeclaration */ &&
+ expression.kind !== 214 /* ClassDeclaration */) {
+ write(";");
+ }
+ emitEnd(node);
+ }
+ else {
+ writeLine();
+ emitStart(node);
+ if (modulekind === 4 /* System */) {
+ write(exportFunctionForFile + "(\"default\",");
+ emit(node.expression);
+ write(")");
+ }
+ else {
+ emitEs6ExportDefaultCompat(node);
+ emitContainingModuleName(node);
+ if (languageVersion === 0 /* ES3 */) {
+ write("[\"default\"] = ");
+ }
+ else {
+ write(".default = ");
+ }
+ emit(node.expression);
+ }
+ write(";");
+ emitEnd(node);
+ }
+ }
+ }
+ function collectExternalModuleInfo(sourceFile) {
+ externalImports = [];
+ exportSpecifiers = {};
+ exportEquals = undefined;
+ hasExportStars = false;
+ for (var _a = 0, _b = sourceFile.statements; _a < _b.length; _a++) {
+ var node = _b[_a];
+ switch (node.kind) {
+ case 222 /* ImportDeclaration */:
+ if (!node.importClause ||
+ resolver.isReferencedAliasDeclaration(node.importClause, /*checkChildren*/ true)) {
+ // import "mod"
+ // import x from "mod" where x is referenced
+ // import * as x from "mod" where x is referenced
+ // import { x, y } from "mod" where at least one import is referenced
+ externalImports.push(node);
+ }
+ break;
+ case 221 /* ImportEqualsDeclaration */:
+ if (node.moduleReference.kind === 232 /* ExternalModuleReference */ && resolver.isReferencedAliasDeclaration(node)) {
+ // import x = require("mod") where x is referenced
+ externalImports.push(node);
+ }
+ break;
+ case 228 /* ExportDeclaration */:
+ if (node.moduleSpecifier) {
+ if (!node.exportClause) {
+ // export * from "mod"
+ externalImports.push(node);
+ hasExportStars = true;
+ }
+ else if (resolver.isValueAliasDeclaration(node)) {
+ // export { x, y } from "mod" where at least one export is a value symbol
+ externalImports.push(node);
+ }
+ }
+ else {
+ // export { x, y }
+ for (var _c = 0, _d = node.exportClause.elements; _c < _d.length; _c++) {
+ var specifier = _d[_c];
+ var name_25 = (specifier.propertyName || specifier.name).text;
+ (exportSpecifiers[name_25] || (exportSpecifiers[name_25] = [])).push(specifier);
+ }
+ }
+ break;
+ case 227 /* ExportAssignment */:
+ if (node.isExportEquals && !exportEquals) {
+ // export = x
+ exportEquals = node;
+ }
+ break;
+ }
+ }
+ }
+ function emitExportStarHelper() {
+ if (hasExportStars) {
+ writeLine();
+ write("function __export(m) {");
+ increaseIndent();
+ writeLine();
+ write("for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];");
+ decreaseIndent();
+ writeLine();
+ write("}");
+ }
+ }
+ function getLocalNameForExternalImport(node) {
+ var namespaceDeclaration = getNamespaceDeclarationNode(node);
+ if (namespaceDeclaration && !isDefaultImport(node)) {
+ return ts.getSourceTextOfNodeFromSourceFile(currentSourceFile, namespaceDeclaration.name);
+ }
+ if (node.kind === 222 /* ImportDeclaration */ && node.importClause) {
+ return getGeneratedNameForNode(node);
+ }
+ if (node.kind === 228 /* ExportDeclaration */ && node.moduleSpecifier) {
+ return getGeneratedNameForNode(node);
+ }
+ }
+ function getExternalModuleNameText(importNode) {
+ var moduleName = ts.getExternalModuleName(importNode);
+ if (moduleName.kind === 9 /* StringLiteral */) {
+ return tryRenameExternalModule(moduleName) || getLiteralText(moduleName);
+ }
+ return undefined;
+ }
+ function emitVariableDeclarationsForImports() {
+ if (externalImports.length === 0) {
+ return;
+ }
+ writeLine();
+ var started = false;
+ for (var _a = 0; _a < externalImports.length; _a++) {
+ var importNode = externalImports[_a];
+ // do not create variable declaration for exports and imports that lack import clause
+ var skipNode = importNode.kind === 228 /* ExportDeclaration */ ||
+ (importNode.kind === 222 /* ImportDeclaration */ && !importNode.importClause);
+ if (skipNode) {
+ continue;
+ }
+ if (!started) {
+ write("var ");
+ started = true;
+ }
+ else {
+ write(", ");
+ }
+ write(getLocalNameForExternalImport(importNode));
+ }
+ if (started) {
+ write(";");
+ }
+ }
+ function emitLocalStorageForExportedNamesIfNecessary(exportedDeclarations) {
+ // when resolving exports local exported entries/indirect exported entries in the module
+ // should always win over entries with similar names that were added via star exports
+ // to support this we store names of local/indirect exported entries in a set.
+ // this set is used to filter names brought by star expors.
+ if (!hasExportStars) {
+ // local names set is needed only in presence of star exports
+ return undefined;
+ }
+ // local names set should only be added if we have anything exported
+ if (!exportedDeclarations && ts.isEmpty(exportSpecifiers)) {
+ // no exported declarations (export var ...) or export specifiers (export {x})
+ // check if we have any non star export declarations.
+ var hasExportDeclarationWithExportClause = false;
+ for (var _a = 0; _a < externalImports.length; _a++) {
+ var externalImport = externalImports[_a];
+ if (externalImport.kind === 228 /* ExportDeclaration */ && externalImport.exportClause) {
+ hasExportDeclarationWithExportClause = true;
+ break;
+ }
+ }
+ if (!hasExportDeclarationWithExportClause) {
+ // we still need to emit exportStar helper
+ return emitExportStarFunction(/*localNames*/ undefined);
+ }
+ }
+ var exportedNamesStorageRef = makeUniqueName("exportedNames");
+ writeLine();
+ write("var " + exportedNamesStorageRef + " = {");
+ increaseIndent();
+ var started = false;
+ if (exportedDeclarations) {
+ for (var i = 0; i < exportedDeclarations.length; ++i) {
+ // write name of exported declaration, i.e 'export var x...'
+ writeExportedName(exportedDeclarations[i]);
+ }
+ }
+ if (exportSpecifiers) {
+ for (var n in exportSpecifiers) {
+ for (var _b = 0, _c = exportSpecifiers[n]; _b < _c.length; _b++) {
+ var specifier = _c[_b];
+ // write name of export specified, i.e. 'export {x}'
+ writeExportedName(specifier.name);
+ }
+ }
+ }
+ for (var _d = 0; _d < externalImports.length; _d++) {
+ var externalImport = externalImports[_d];
+ if (externalImport.kind !== 228 /* ExportDeclaration */) {
+ continue;
+ }
+ var exportDecl = externalImport;
+ if (!exportDecl.exportClause) {
+ // export * from ...
+ continue;
+ }
+ for (var _e = 0, _f = exportDecl.exportClause.elements; _e < _f.length; _e++) {
+ var element = _f[_e];
+ // write name of indirectly exported entry, i.e. 'export {x} from ...'
+ writeExportedName(element.name || element.propertyName);
+ }
+ }
+ decreaseIndent();
+ writeLine();
+ write("};");
+ return emitExportStarFunction(exportedNamesStorageRef);
+ function emitExportStarFunction(localNames) {
+ var exportStarFunction = makeUniqueName("exportStar");
+ writeLine();
+ // define an export star helper function
+ write("function " + exportStarFunction + "(m) {");
+ increaseIndent();
+ writeLine();
+ write("var exports = {};");
+ writeLine();
+ write("for(var n in m) {");
+ increaseIndent();
+ writeLine();
+ write("if (n !== \"default\"");
+ if (localNames) {
+ write("&& !" + localNames + ".hasOwnProperty(n)");
+ }
+ write(") exports[n] = m[n];");
+ decreaseIndent();
+ writeLine();
+ write("}");
+ writeLine();
+ write(exportFunctionForFile + "(exports);");
+ decreaseIndent();
+ writeLine();
+ write("}");
+ return exportStarFunction;
+ }
+ function writeExportedName(node) {
+ // do not record default exports
+ // they are local to module and never overwritten (explicitly skipped) by star export
+ if (node.kind !== 69 /* Identifier */ && node.flags & 1024 /* Default */) {
+ return;
+ }
+ if (started) {
+ write(",");
+ }
+ else {
+ started = true;
+ }
+ writeLine();
+ write("'");
+ if (node.kind === 69 /* Identifier */) {
+ emitNodeWithCommentsAndWithoutSourcemap(node);
+ }
+ else {
+ emitDeclarationName(node);
+ }
+ write("': true");
+ }
+ }
+ function processTopLevelVariableAndFunctionDeclarations(node) {
+ // per ES6 spec:
+ // 15.2.1.16.4 ModuleDeclarationInstantiation() Concrete Method
+ // - var declarations are initialized to undefined - 14.a.ii
+ // - function/generator declarations are instantiated - 16.a.iv
+ // this means that after module is instantiated but before its evaluation
+ // exported functions are already accessible at import sites
+ // in theory we should hoist only exported functions and its dependencies
+ // in practice to simplify things we'll hoist all source level functions and variable declaration
+ // including variables declarations for module and class declarations
+ var hoistedVars;
+ var hoistedFunctionDeclarations;
+ var exportedDeclarations;
+ visit(node);
+ if (hoistedVars) {
+ writeLine();
+ write("var ");
+ var seen = {};
+ for (var i = 0; i < hoistedVars.length; ++i) {
+ var local = hoistedVars[i];
+ var name_26 = local.kind === 69 /* Identifier */
+ ? local
+ : local.name;
+ if (name_26) {
+ // do not emit duplicate entries (in case of declaration merging) in the list of hoisted variables
+ var text = ts.unescapeIdentifier(name_26.text);
+ if (ts.hasProperty(seen, text)) {
+ continue;
+ }
+ else {
+ seen[text] = text;
+ }
+ }
+ if (i !== 0) {
+ write(", ");
+ }
+ if (local.kind === 214 /* ClassDeclaration */ || local.kind === 218 /* ModuleDeclaration */ || local.kind === 217 /* EnumDeclaration */) {
+ emitDeclarationName(local);
+ }
+ else {
+ emit(local);
+ }
+ var flags = ts.getCombinedNodeFlags(local.kind === 69 /* Identifier */ ? local.parent : local);
+ if (flags & 1 /* Export */) {
+ if (!exportedDeclarations) {
+ exportedDeclarations = [];
+ }
+ exportedDeclarations.push(local);
+ }
+ }
+ write(";");
+ }
+ if (hoistedFunctionDeclarations) {
+ for (var _a = 0; _a < hoistedFunctionDeclarations.length; _a++) {
+ var f = hoistedFunctionDeclarations[_a];
+ writeLine();
+ emit(f);
+ if (f.flags & 1 /* Export */) {
+ if (!exportedDeclarations) {
+ exportedDeclarations = [];
+ }
+ exportedDeclarations.push(f);
+ }
+ }
+ }
+ return exportedDeclarations;
+ function visit(node) {
+ if (node.flags & 2 /* Ambient */) {
+ return;
+ }
+ if (node.kind === 213 /* FunctionDeclaration */) {
+ if (!hoistedFunctionDeclarations) {
+ hoistedFunctionDeclarations = [];
+ }
+ hoistedFunctionDeclarations.push(node);
+ return;
+ }
+ if (node.kind === 214 /* ClassDeclaration */) {
+ if (!hoistedVars) {
+ hoistedVars = [];
+ }
+ hoistedVars.push(node);
+ return;
+ }
+ if (node.kind === 217 /* EnumDeclaration */) {
+ if (shouldEmitEnumDeclaration(node)) {
+ if (!hoistedVars) {
+ hoistedVars = [];
+ }
+ hoistedVars.push(node);
+ }
+ return;
+ }
+ if (node.kind === 218 /* ModuleDeclaration */) {
+ if (shouldEmitModuleDeclaration(node)) {
+ if (!hoistedVars) {
+ hoistedVars = [];
+ }
+ hoistedVars.push(node);
+ }
+ return;
+ }
+ if (node.kind === 211 /* VariableDeclaration */ || node.kind === 163 /* BindingElement */) {
+ if (shouldHoistVariable(node, /*checkIfSourceFileLevelDecl*/ false)) {
+ var name_27 = node.name;
+ if (name_27.kind === 69 /* Identifier */) {
+ if (!hoistedVars) {
+ hoistedVars = [];
+ }
+ hoistedVars.push(name_27);
+ }
+ else {
+ ts.forEachChild(name_27, visit);
+ }
+ }
+ return;
+ }
+ if (ts.isInternalModuleImportEqualsDeclaration(node) && resolver.isValueAliasDeclaration(node)) {
+ if (!hoistedVars) {
+ hoistedVars = [];
+ }
+ hoistedVars.push(node.name);
+ return;
+ }
+ if (ts.isBindingPattern(node)) {
+ ts.forEach(node.elements, visit);
+ return;
+ }
+ if (!ts.isDeclaration(node)) {
+ ts.forEachChild(node, visit);
+ }
+ }
+ }
+ function shouldHoistVariable(node, checkIfSourceFileLevelDecl) {
+ if (checkIfSourceFileLevelDecl && !shouldHoistDeclarationInSystemJsModule(node)) {
+ return false;
+ }
+ // hoist variable if
+ // - it is not block scoped
+ // - it is top level block scoped
+ // if block scoped variables are nested in some another block then
+ // no other functions can use them except ones that are defined at least in the same block
+ return (ts.getCombinedNodeFlags(node) & 49152 /* BlockScoped */) === 0 ||
+ ts.getEnclosingBlockScopeContainer(node).kind === 248 /* SourceFile */;
+ }
+ function isCurrentFileSystemExternalModule() {
+ return modulekind === 4 /* System */ && ts.isExternalModule(currentSourceFile);
+ }
+ function emitSystemModuleBody(node, dependencyGroups, startIndex) {
+ // shape of the body in system modules:
+ // function (exports) {
+ // <list of local aliases for imports>
+ // <hoisted function declarations>
+ // <hoisted variable declarations>
+ // return {
+ // setters: [
+ // <list of setter function for imports>
+ // ],
+ // execute: function() {
+ // <module statements>
+ // }
+ // }
+ // <temp declarations>
+ // }
+ // I.e:
+ // import {x} from 'file1'
+ // var y = 1;
+ // export function foo() { return y + x(); }
+ // console.log(y);
+ // will be transformed to
+ // function(exports) {
+ // var file1; // local alias
+ // var y;
+ // function foo() { return y + file1.x(); }
+ // exports("foo", foo);
+ // return {
+ // setters: [
+ // function(v) { file1 = v }
+ // ],
+ // execute(): function() {
+ // y = 1;
+ // console.log(y);
+ // }
+ // };
+ // }
+ emitVariableDeclarationsForImports();
+ writeLine();
+ var exportedDeclarations = processTopLevelVariableAndFunctionDeclarations(node);
+ var exportStarFunction = emitLocalStorageForExportedNamesIfNecessary(exportedDeclarations);
+ writeLine();
+ write("return {");
+ increaseIndent();
+ writeLine();
+ emitSetters(exportStarFunction, dependencyGroups);
+ writeLine();
+ emitExecute(node, startIndex);
+ decreaseIndent();
+ writeLine();
+ write("}"); // return
+ emitTempDeclarations(/*newLine*/ true);
+ }
+ function emitSetters(exportStarFunction, dependencyGroups) {
+ write("setters:[");
+ for (var i = 0; i < dependencyGroups.length; ++i) {
+ if (i !== 0) {
+ write(",");
+ }
+ writeLine();
+ increaseIndent();
+ var group = dependencyGroups[i];
+ // derive a unique name for parameter from the first named entry in the group
+ var parameterName = makeUniqueName(ts.forEach(group, getLocalNameForExternalImport) || "");
+ write("function (" + parameterName + ") {");
+ increaseIndent();
+ for (var _a = 0; _a < group.length; _a++) {
+ var entry = group[_a];
+ var importVariableName = getLocalNameForExternalImport(entry) || "";
+ switch (entry.kind) {
+ case 222 /* ImportDeclaration */:
+ if (!entry.importClause) {
+ // 'import "..."' case
+ // module is imported only for side-effects, no emit required
+ break;
+ }
+ // fall-through
+ case 221 /* ImportEqualsDeclaration */:
+ ts.Debug.assert(importVariableName !== "");
+ writeLine();
+ // save import into the local
+ write(importVariableName + " = " + parameterName + ";");
+ writeLine();
+ break;
+ case 228 /* ExportDeclaration */:
+ ts.Debug.assert(importVariableName !== "");
+ if (entry.exportClause) {
+ // export {a, b as c} from 'foo'
+ // emit as:
+ // exports_({
+ // "a": _["a"],
+ // "c": _["b"]
+ // });
+ writeLine();
+ write(exportFunctionForFile + "({");
+ writeLine();
+ increaseIndent();
+ for (var i_2 = 0, len = entry.exportClause.elements.length; i_2 < len; ++i_2) {
+ if (i_2 !== 0) {
+ write(",");
+ writeLine();
+ }
+ var e = entry.exportClause.elements[i_2];
+ write("\"");
+ emitNodeWithCommentsAndWithoutSourcemap(e.name);
+ write("\": " + parameterName + "[\"");
+ emitNodeWithCommentsAndWithoutSourcemap(e.propertyName || e.name);
+ write("\"]");
+ }
+ decreaseIndent();
+ writeLine();
+ write("});");
+ }
+ else {
+ writeLine();
+ // export * from 'foo'
+ // emit as:
+ // exportStar(_foo);
+ write(exportStarFunction + "(" + parameterName + ");");
+ }
+ writeLine();
+ break;
+ }
+ }
+ decreaseIndent();
+ write("}");
+ decreaseIndent();
+ }
+ write("],");
+ }
+ function emitExecute(node, startIndex) {
+ write("execute: function() {");
+ increaseIndent();
+ writeLine();
+ for (var i = startIndex; i < node.statements.length; ++i) {
+ var statement = node.statements[i];
+ switch (statement.kind) {
+ // - function declarations are not emitted because they were already hoisted
+ // - import declarations are not emitted since they are already handled in setters
+ // - export declarations with module specifiers are not emitted since they were already written in setters
+ // - export declarations without module specifiers are emitted preserving the order
+ case 213 /* FunctionDeclaration */:
+ case 222 /* ImportDeclaration */:
+ continue;
+ case 228 /* ExportDeclaration */:
+ if (!statement.moduleSpecifier) {
+ for (var _a = 0, _b = statement.exportClause.elements; _a < _b.length; _a++) {
+ var element = _b[_a];
+ // write call to exporter function for every export specifier in exports list
+ emitExportSpecifierInSystemModule(element);
+ }
+ }
+ continue;
+ case 221 /* ImportEqualsDeclaration */:
+ if (!ts.isInternalModuleImportEqualsDeclaration(statement)) {
+ // - import equals declarations that import external modules are not emitted
+ continue;
+ }
+ // fall-though for import declarations that import internal modules
+ default:
+ writeLine();
+ emit(statement);
+ }
+ }
+ decreaseIndent();
+ writeLine();
+ write("}"); // execute
+ }
+ function emitSystemModule(node) {
+ collectExternalModuleInfo(node);
+ // System modules has the following shape
+ // System.register(['dep-1', ... 'dep-n'], function(exports) {/* module body function */})
+ // 'exports' here is a function 'exports<T>(name: string, value: T): T' that is used to publish exported values.
+ // 'exports' returns its 'value' argument so in most cases expressions
+ // that mutate exported values can be rewritten as:
+ // expr -> exports('name', expr).
+ // The only exception in this rule is postfix unary operators,
+ // see comment to 'emitPostfixUnaryExpression' for more details
+ ts.Debug.assert(!exportFunctionForFile);
+ // make sure that name of 'exports' function does not conflict with existing identifiers
+ exportFunctionForFile = makeUniqueName("exports");
+ writeLine();
+ write("System.register(");
+ if (node.moduleName) {
+ write("\"" + node.moduleName + "\", ");
+ }
+ write("[");
+ var groupIndices = {};
+ var dependencyGroups = [];
+ for (var i = 0; i < externalImports.length; ++i) {
+ var text = getExternalModuleNameText(externalImports[i]);
+ if (ts.hasProperty(groupIndices, text)) {
+ // deduplicate/group entries in dependency list by the dependency name
+ var groupIndex = groupIndices[text];
+ dependencyGroups[groupIndex].push(externalImports[i]);
+ continue;
+ }
+ else {
+ groupIndices[text] = dependencyGroups.length;
+ dependencyGroups.push([externalImports[i]]);
+ }
+ if (i !== 0) {
+ write(", ");
+ }
+ write(text);
+ }
+ write("], function(" + exportFunctionForFile + ") {");
+ writeLine();
+ increaseIndent();
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ true);
+ emitEmitHelpers(node);
+ emitCaptureThisForNodeIfNecessary(node);
+ emitSystemModuleBody(node, dependencyGroups, startIndex);
+ decreaseIndent();
+ writeLine();
+ write("});");
+ }
+ function getAMDDependencyNames(node, includeNonAmdDependencies) {
+ // names of modules with corresponding parameter in the factory function
+ var aliasedModuleNames = [];
+ // names of modules with no corresponding parameters in factory function
+ var unaliasedModuleNames = [];
+ var importAliasNames = []; // names of the parameters in the factory function; these
+ // parameters need to match the indexes of the corresponding
+ // module names in aliasedModuleNames.
+ // Fill in amd-dependency tags
+ for (var _a = 0, _b = node.amdDependencies; _a < _b.length; _a++) {
+ var amdDependency = _b[_a];
+ if (amdDependency.name) {
+ aliasedModuleNames.push("\"" + amdDependency.path + "\"");
+ importAliasNames.push(amdDependency.name);
+ }
+ else {
+ unaliasedModuleNames.push("\"" + amdDependency.path + "\"");
+ }
+ }
+ for (var _c = 0; _c < externalImports.length; _c++) {
+ var importNode = externalImports[_c];
+ // Find the name of the external module
+ var externalModuleName = getExternalModuleNameText(importNode);
+ // Find the name of the module alias, if there is one
+ var importAliasName = getLocalNameForExternalImport(importNode);
+ if (includeNonAmdDependencies && importAliasName) {
+ aliasedModuleNames.push(externalModuleName);
+ importAliasNames.push(importAliasName);
+ }
+ else {
+ unaliasedModuleNames.push(externalModuleName);
+ }
+ }
+ return { aliasedModuleNames: aliasedModuleNames, unaliasedModuleNames: unaliasedModuleNames, importAliasNames: importAliasNames };
+ }
+ function emitAMDDependencies(node, includeNonAmdDependencies) {
+ // An AMD define function has the following shape:
+ // define(id?, dependencies?, factory);
+ //
+ // This has the shape of
+ // define(name, ["module1", "module2"], function (module1Alias) {
+ // The location of the alias in the parameter list in the factory function needs to
+ // match the position of the module name in the dependency list.
+ //
+ // To ensure this is true in cases of modules with no aliases, e.g.:
+ // `import "module"` or `<amd-dependency path= "a.css" />`
+ // we need to add modules without alias names to the end of the dependencies list
+ var dependencyNames = getAMDDependencyNames(node, includeNonAmdDependencies);
+ emitAMDDependencyList(dependencyNames);
+ write(", ");
+ emitAMDFactoryHeader(dependencyNames);
+ }
+ function emitAMDDependencyList(_a) {
+ var aliasedModuleNames = _a.aliasedModuleNames, unaliasedModuleNames = _a.unaliasedModuleNames;
+ write("[\"require\", \"exports\"");
+ if (aliasedModuleNames.length) {
+ write(", ");
+ write(aliasedModuleNames.join(", "));
+ }
+ if (unaliasedModuleNames.length) {
+ write(", ");
+ write(unaliasedModuleNames.join(", "));
+ }
+ write("]");
+ }
+ function emitAMDFactoryHeader(_a) {
+ var importAliasNames = _a.importAliasNames;
+ write("function (require, exports");
+ if (importAliasNames.length) {
+ write(", ");
+ write(importAliasNames.join(", "));
+ }
+ write(") {");
+ }
+ function emitAMDModule(node) {
+ emitEmitHelpers(node);
+ collectExternalModuleInfo(node);
+ writeLine();
+ write("define(");
+ if (node.moduleName) {
+ write("\"" + node.moduleName + "\", ");
+ }
+ emitAMDDependencies(node, /*includeNonAmdDependencies*/ true);
+ increaseIndent();
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ true);
+ emitExportStarHelper();
+ emitCaptureThisForNodeIfNecessary(node);
+ emitLinesStartingAt(node.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ emitExportEquals(/*emitAsReturn*/ true);
+ decreaseIndent();
+ writeLine();
+ write("});");
+ }
+ function emitCommonJSModule(node) {
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ false);
+ emitEmitHelpers(node);
+ collectExternalModuleInfo(node);
+ emitExportStarHelper();
+ emitCaptureThisForNodeIfNecessary(node);
+ emitLinesStartingAt(node.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ emitExportEquals(/*emitAsReturn*/ false);
+ }
+ function emitUMDModule(node) {
+ emitEmitHelpers(node);
+ collectExternalModuleInfo(node);
+ var dependencyNames = getAMDDependencyNames(node, /*includeNonAmdDependencies*/ false);
+ // Module is detected first to support Browserify users that load into a browser with an AMD loader
+ writeLines("(function (factory) {\n if (typeof module === 'object' && typeof module.exports === 'object') {\n var v = factory(require, exports); if (v !== undefined) module.exports = v;\n }\n else if (typeof define === 'function' && define.amd) {\n define(");
+ emitAMDDependencyList(dependencyNames);
+ write(", factory);");
+ writeLines(" }\n})(");
+ emitAMDFactoryHeader(dependencyNames);
+ increaseIndent();
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ true);
+ emitExportStarHelper();
+ emitCaptureThisForNodeIfNecessary(node);
+ emitLinesStartingAt(node.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ emitExportEquals(/*emitAsReturn*/ true);
+ decreaseIndent();
+ writeLine();
+ write("});");
+ }
+ function emitES6Module(node) {
+ externalImports = undefined;
+ exportSpecifiers = undefined;
+ exportEquals = undefined;
+ hasExportStars = false;
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ false);
+ emitEmitHelpers(node);
+ emitCaptureThisForNodeIfNecessary(node);
+ emitLinesStartingAt(node.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ // Emit exportDefault if it exists will happen as part
+ // or normal statement emit.
+ }
+ function emitExportEquals(emitAsReturn) {
+ if (exportEquals && resolver.isValueAliasDeclaration(exportEquals)) {
+ writeLine();
+ emitStart(exportEquals);
+ write(emitAsReturn ? "return " : "module.exports = ");
+ emit(exportEquals.expression);
+ write(";");
+ emitEnd(exportEquals);
+ }
+ }
+ function emitJsxElement(node) {
+ switch (compilerOptions.jsx) {
+ case 2 /* React */:
+ jsxEmitReact(node);
+ break;
+ case 1 /* Preserve */:
+ // Fall back to preserve if None was specified (we'll error earlier)
+ default:
+ jsxEmitPreserve(node);
+ break;
+ }
+ }
+ function trimReactWhitespaceAndApplyEntities(node) {
+ var result = undefined;
+ var text = ts.getTextOfNode(node, /*includeTrivia*/ true);
+ var firstNonWhitespace = 0;
+ var lastNonWhitespace = -1;
+ // JSX trims whitespace at the end and beginning of lines, except that the
+ // start/end of a tag is considered a start/end of a line only if that line is
+ // on the same line as the closing tag. See examples in tests/cases/conformance/jsx/tsxReactEmitWhitespace.tsx
+ for (var i = 0; i < text.length; i++) {
+ var c = text.charCodeAt(i);
+ if (ts.isLineBreak(c)) {
+ if (firstNonWhitespace !== -1 && (lastNonWhitespace - firstNonWhitespace + 1 > 0)) {
+ var part = text.substr(firstNonWhitespace, lastNonWhitespace - firstNonWhitespace + 1);
+ result = (result ? result + "\" + ' ' + \"" : "") + ts.escapeString(part);
+ }
+ firstNonWhitespace = -1;
+ }
+ else if (!ts.isWhiteSpace(c)) {
+ lastNonWhitespace = i;
+ if (firstNonWhitespace === -1) {
+ firstNonWhitespace = i;
+ }
+ }
+ }
+ if (firstNonWhitespace !== -1) {
+ var part = text.substr(firstNonWhitespace);
+ result = (result ? result + "\" + ' ' + \"" : "") + ts.escapeString(part);
+ }
+ if (result) {
+ // Replace entities like &nbsp;
+ result = result.replace(/&(\w+);/g, function (s, m) {
+ if (entities[m] !== undefined) {
+ return String.fromCharCode(entities[m]);
+ }
+ else {
+ return s;
+ }
+ });
+ }
+ return result;
+ }
+ function getTextToEmit(node) {
+ switch (compilerOptions.jsx) {
+ case 2 /* React */:
+ var text = trimReactWhitespaceAndApplyEntities(node);
+ if (text === undefined || text.length === 0) {
+ return undefined;
+ }
+ else {
+ return text;
+ }
+ case 1 /* Preserve */:
+ default:
+ return ts.getTextOfNode(node, /*includeTrivia*/ true);
+ }
+ }
+ function emitJsxText(node) {
+ switch (compilerOptions.jsx) {
+ case 2 /* React */:
+ write("\"");
+ write(trimReactWhitespaceAndApplyEntities(node));
+ write("\"");
+ break;
+ case 1 /* Preserve */:
+ default:
+ writer.writeLiteral(ts.getTextOfNode(node, /*includeTrivia*/ true));
+ break;
+ }
+ }
+ function emitJsxExpression(node) {
+ if (node.expression) {
+ switch (compilerOptions.jsx) {
+ case 1 /* Preserve */:
+ default:
+ write("{");
+ emit(node.expression);
+ write("}");
+ break;
+ case 2 /* React */:
+ emit(node.expression);
+ break;
+ }
+ }
+ }
+ function emitDirectivePrologues(statements, startWithNewLine) {
+ for (var i = 0; i < statements.length; ++i) {
+ if (ts.isPrologueDirective(statements[i])) {
+ if (startWithNewLine || i > 0) {
+ writeLine();
+ }
+ emit(statements[i]);
+ }
+ else {
+ // return index of the first non prologue directive
+ return i;
+ }
+ }
+ return statements.length;
+ }
+ function writeLines(text) {
+ var lines = text.split(/\r\n|\r|\n/g);
+ for (var i = 0; i < lines.length; ++i) {
+ var line = lines[i];
+ if (line.length) {
+ writeLine();
+ write(line);
+ }
+ }
+ }
+ function emitEmitHelpers(node) {
+ // Only emit helpers if the user did not say otherwise.
+ if (!compilerOptions.noEmitHelpers) {
+ // Only Emit __extends function when target ES5.
+ // For target ES6 and above, we can emit classDeclaration as is.
+ if ((languageVersion < 2 /* ES6 */) && (!extendsEmitted && resolver.getNodeCheckFlags(node) & 8 /* EmitExtends */)) {
+ writeLines(extendsHelper);
+ extendsEmitted = true;
+ }
+ if (!decorateEmitted && resolver.getNodeCheckFlags(node) & 16 /* EmitDecorate */) {
+ writeLines(decorateHelper);
+ if (compilerOptions.emitDecoratorMetadata) {
+ writeLines(metadataHelper);
+ }
+ decorateEmitted = true;
+ }
+ if (!paramEmitted && resolver.getNodeCheckFlags(node) & 32 /* EmitParam */) {
+ writeLines(paramHelper);
+ paramEmitted = true;
+ }
+ if (!awaiterEmitted && resolver.getNodeCheckFlags(node) & 64 /* EmitAwaiter */) {
+ writeLines(awaiterHelper);
+ awaiterEmitted = true;
+ }
+ }
+ }
+ function emitSourceFileNode(node) {
+ // Start new file on new line
+ writeLine();
+ emitShebang();
+ emitDetachedComments(node);
+ if (ts.isExternalModule(node) || compilerOptions.isolatedModules) {
+ var emitModule = moduleEmitDelegates[modulekind] || moduleEmitDelegates[1 /* CommonJS */];
+ emitModule(node);
+ }
+ else {
+ // emit prologue directives prior to __extends
+ var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ false);
+ externalImports = undefined;
+ exportSpecifiers = undefined;
+ exportEquals = undefined;
+ hasExportStars = false;
+ emitEmitHelpers(node);
+ emitCaptureThisForNodeIfNecessary(node);
+ emitLinesStartingAt(node.statements, startIndex);
+ emitTempDeclarations(/*newLine*/ true);
+ }
+ emitLeadingComments(node.endOfFileToken);
+ }
+ function emitNodeWithCommentsAndWithoutSourcemap(node) {
+ emitNodeConsideringCommentsOption(node, emitNodeWithoutSourceMap);
+ }
+ function emitNodeConsideringCommentsOption(node, emitNodeConsideringSourcemap) {
+ if (node) {
+ if (node.flags & 2 /* Ambient */) {
+ return emitCommentsOnNotEmittedNode(node);
+ }
+ if (isSpecializedCommentHandling(node)) {
+ // This is the node that will handle its own comments and sourcemap
+ return emitNodeWithoutSourceMap(node);
+ }
+ var emitComments_1 = shouldEmitLeadingAndTrailingComments(node);
+ if (emitComments_1) {
+ emitLeadingComments(node);
+ }
+ emitNodeConsideringSourcemap(node);
+ if (emitComments_1) {
+ emitTrailingComments(node);
+ }
+ }
+ }
+ function emitNodeWithoutSourceMap(node) {
+ if (node) {
+ emitJavaScriptWorker(node);
+ }
+ }
+ function isSpecializedCommentHandling(node) {
+ switch (node.kind) {
+ // All of these entities are emitted in a specialized fashion. As such, we allow
+ // the specialized methods for each to handle the comments on the nodes.
+ case 215 /* InterfaceDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 222 /* ImportDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 227 /* ExportAssignment */:
+ return true;
+ }
+ }
+ function shouldEmitLeadingAndTrailingComments(node) {
+ switch (node.kind) {
+ case 193 /* VariableStatement */:
+ return shouldEmitLeadingAndTrailingCommentsForVariableStatement(node);
+ case 218 /* ModuleDeclaration */:
+ // Only emit the leading/trailing comments for a module if we're actually
+ // emitting the module as well.
+ return shouldEmitModuleDeclaration(node);
+ case 217 /* EnumDeclaration */:
+ // Only emit the leading/trailing comments for an enum if we're actually
+ // emitting the module as well.
+ return shouldEmitEnumDeclaration(node);
+ }
+ // If the node is emitted in specialized fashion, dont emit comments as this node will handle
+ // emitting comments when emitting itself
+ ts.Debug.assert(!isSpecializedCommentHandling(node));
+ // If this is the expression body of an arrow function that we're down-leveling,
+ // then we don't want to emit comments when we emit the body. It will have already
+ // been taken care of when we emitted the 'return' statement for the function
+ // expression body.
+ if (node.kind !== 192 /* Block */ &&
+ node.parent &&
+ node.parent.kind === 174 /* ArrowFunction */ &&
+ node.parent.body === node &&
+ compilerOptions.target <= 1 /* ES5 */) {
+ return false;
+ }
+ // Emit comments for everything else.
+ return true;
+ }
+ function emitJavaScriptWorker(node) {
+ // Check if the node can be emitted regardless of the ScriptTarget
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ return emitIdentifier(node);
+ case 138 /* Parameter */:
+ return emitParameter(node);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return emitMethod(node);
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return emitAccessor(node);
+ case 97 /* ThisKeyword */:
+ return emitThis(node);
+ case 95 /* SuperKeyword */:
+ return emitSuper(node);
+ case 93 /* NullKeyword */:
+ return write("null");
+ case 99 /* TrueKeyword */:
+ return write("true");
+ case 84 /* FalseKeyword */:
+ return write("false");
+ case 8 /* NumericLiteral */:
+ case 9 /* StringLiteral */:
+ case 10 /* RegularExpressionLiteral */:
+ case 11 /* NoSubstitutionTemplateLiteral */:
+ case 12 /* TemplateHead */:
+ case 13 /* TemplateMiddle */:
+ case 14 /* TemplateTail */:
+ return emitLiteral(node);
+ case 183 /* TemplateExpression */:
+ return emitTemplateExpression(node);
+ case 190 /* TemplateSpan */:
+ return emitTemplateSpan(node);
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ return emitJsxElement(node);
+ case 236 /* JsxText */:
+ return emitJsxText(node);
+ case 240 /* JsxExpression */:
+ return emitJsxExpression(node);
+ case 135 /* QualifiedName */:
+ return emitQualifiedName(node);
+ case 161 /* ObjectBindingPattern */:
+ return emitObjectBindingPattern(node);
+ case 162 /* ArrayBindingPattern */:
+ return emitArrayBindingPattern(node);
+ case 163 /* BindingElement */:
+ return emitBindingElement(node);
+ case 164 /* ArrayLiteralExpression */:
+ return emitArrayLiteral(node);
+ case 165 /* ObjectLiteralExpression */:
+ return emitObjectLiteral(node);
+ case 245 /* PropertyAssignment */:
+ return emitPropertyAssignment(node);
+ case 246 /* ShorthandPropertyAssignment */:
+ return emitShorthandPropertyAssignment(node);
+ case 136 /* ComputedPropertyName */:
+ return emitComputedPropertyName(node);
+ case 166 /* PropertyAccessExpression */:
+ return emitPropertyAccess(node);
+ case 167 /* ElementAccessExpression */:
+ return emitIndexedAccess(node);
+ case 168 /* CallExpression */:
+ return emitCallExpression(node);
+ case 169 /* NewExpression */:
+ return emitNewExpression(node);
+ case 170 /* TaggedTemplateExpression */:
+ return emitTaggedTemplateExpression(node);
+ case 171 /* TypeAssertionExpression */:
+ return emit(node.expression);
+ case 189 /* AsExpression */:
+ return emit(node.expression);
+ case 172 /* ParenthesizedExpression */:
+ return emitParenExpression(node);
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return emitFunctionDeclaration(node);
+ case 175 /* DeleteExpression */:
+ return emitDeleteExpression(node);
+ case 176 /* TypeOfExpression */:
+ return emitTypeOfExpression(node);
+ case 177 /* VoidExpression */:
+ return emitVoidExpression(node);
+ case 178 /* AwaitExpression */:
+ return emitAwaitExpression(node);
+ case 179 /* PrefixUnaryExpression */:
+ return emitPrefixUnaryExpression(node);
+ case 180 /* PostfixUnaryExpression */:
+ return emitPostfixUnaryExpression(node);
+ case 181 /* BinaryExpression */:
+ return emitBinaryExpression(node);
+ case 182 /* ConditionalExpression */:
+ return emitConditionalExpression(node);
+ case 185 /* SpreadElementExpression */:
+ return emitSpreadElementExpression(node);
+ case 184 /* YieldExpression */:
+ return emitYieldExpression(node);
+ case 187 /* OmittedExpression */:
+ return;
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ return emitBlock(node);
+ case 193 /* VariableStatement */:
+ return emitVariableStatement(node);
+ case 194 /* EmptyStatement */:
+ return write(";");
+ case 195 /* ExpressionStatement */:
+ return emitExpressionStatement(node);
+ case 196 /* IfStatement */:
+ return emitIfStatement(node);
+ case 197 /* DoStatement */:
+ return emitDoStatement(node);
+ case 198 /* WhileStatement */:
+ return emitWhileStatement(node);
+ case 199 /* ForStatement */:
+ return emitForStatement(node);
+ case 201 /* ForOfStatement */:
+ case 200 /* ForInStatement */:
+ return emitForInOrForOfStatement(node);
+ case 202 /* ContinueStatement */:
+ case 203 /* BreakStatement */:
+ return emitBreakOrContinueStatement(node);
+ case 204 /* ReturnStatement */:
+ return emitReturnStatement(node);
+ case 205 /* WithStatement */:
+ return emitWithStatement(node);
+ case 206 /* SwitchStatement */:
+ return emitSwitchStatement(node);
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ return emitCaseOrDefaultClause(node);
+ case 207 /* LabeledStatement */:
+ return emitLabelledStatement(node);
+ case 208 /* ThrowStatement */:
+ return emitThrowStatement(node);
+ case 209 /* TryStatement */:
+ return emitTryStatement(node);
+ case 244 /* CatchClause */:
+ return emitCatchClause(node);
+ case 210 /* DebuggerStatement */:
+ return emitDebuggerStatement(node);
+ case 211 /* VariableDeclaration */:
+ return emitVariableDeclaration(node);
+ case 186 /* ClassExpression */:
+ return emitClassExpression(node);
+ case 214 /* ClassDeclaration */:
+ return emitClassDeclaration(node);
+ case 215 /* InterfaceDeclaration */:
+ return emitInterfaceDeclaration(node);
+ case 217 /* EnumDeclaration */:
+ return emitEnumDeclaration(node);
+ case 247 /* EnumMember */:
+ return emitEnumMember(node);
+ case 218 /* ModuleDeclaration */:
+ return emitModuleDeclaration(node);
+ case 222 /* ImportDeclaration */:
+ return emitImportDeclaration(node);
+ case 221 /* ImportEqualsDeclaration */:
+ return emitImportEqualsDeclaration(node);
+ case 228 /* ExportDeclaration */:
+ return emitExportDeclaration(node);
+ case 227 /* ExportAssignment */:
+ return emitExportAssignment(node);
+ case 248 /* SourceFile */:
+ return emitSourceFileNode(node);
+ }
+ }
+ function hasDetachedComments(pos) {
+ return detachedCommentsInfo !== undefined && ts.lastOrUndefined(detachedCommentsInfo).nodePos === pos;
+ }
+ function getLeadingCommentsWithoutDetachedComments() {
+ // get the leading comments from detachedPos
+ var leadingComments = ts.getLeadingCommentRanges(currentSourceFile.text, ts.lastOrUndefined(detachedCommentsInfo).detachedCommentEndPos);
+ if (detachedCommentsInfo.length - 1) {
+ detachedCommentsInfo.pop();
+ }
+ else {
+ detachedCommentsInfo = undefined;
+ }
+ return leadingComments;
+ }
+ function isPinnedComments(comment) {
+ return currentSourceFile.text.charCodeAt(comment.pos + 1) === 42 /* asterisk */ &&
+ currentSourceFile.text.charCodeAt(comment.pos + 2) === 33 /* exclamation */;
+ }
+ /**
+ * Determine if the given comment is a triple-slash
+ *
+ * @return true if the comment is a triple-slash comment else false
+ **/
+ function isTripleSlashComment(comment) {
+ // Verify this is /// comment, but do the regexp match only when we first can find /// in the comment text
+ // so that we don't end up computing comment string and doing match for all // comments
+ if (currentSourceFile.text.charCodeAt(comment.pos + 1) === 47 /* slash */ &&
+ comment.pos + 2 < comment.end &&
+ currentSourceFile.text.charCodeAt(comment.pos + 2) === 47 /* slash */) {
+ var textSubStr = currentSourceFile.text.substring(comment.pos, comment.end);
+ return textSubStr.match(ts.fullTripleSlashReferencePathRegEx) ||
+ textSubStr.match(ts.fullTripleSlashAMDReferencePathRegEx) ?
+ true : false;
+ }
+ return false;
+ }
+ function getLeadingCommentsToEmit(node) {
+ // Emit the leading comments only if the parent's pos doesn't match because parent should take care of emitting these comments
+ if (node.parent) {
+ if (node.parent.kind === 248 /* SourceFile */ || node.pos !== node.parent.pos) {
+ if (hasDetachedComments(node.pos)) {
+ // get comments without detached comments
+ return getLeadingCommentsWithoutDetachedComments();
+ }
+ else {
+ // get the leading comments from the node
+ return ts.getLeadingCommentRangesOfNode(node, currentSourceFile);
+ }
+ }
+ }
+ }
+ function getTrailingCommentsToEmit(node) {
+ // Emit the trailing comments only if the parent's pos doesn't match because parent should take care of emitting these comments
+ if (node.parent) {
+ if (node.parent.kind === 248 /* SourceFile */ || node.end !== node.parent.end) {
+ return ts.getTrailingCommentRanges(currentSourceFile.text, node.end);
+ }
+ }
+ }
+ /**
+ * Emit comments associated with node that will not be emitted into JS file
+ */
+ function emitCommentsOnNotEmittedNode(node) {
+ emitLeadingCommentsWorker(node, /*isEmittedNode:*/ false);
+ }
+ function emitLeadingComments(node) {
+ return emitLeadingCommentsWorker(node, /*isEmittedNode:*/ true);
+ }
+ function emitLeadingCommentsWorker(node, isEmittedNode) {
+ if (compilerOptions.removeComments) {
+ return;
+ }
+ var leadingComments;
+ if (isEmittedNode) {
+ leadingComments = getLeadingCommentsToEmit(node);
+ }
+ else {
+ // If the node will not be emitted in JS, remove all the comments(normal, pinned and ///) associated with the node,
+ // unless it is a triple slash comment at the top of the file.
+ // For Example:
+ // /// <reference-path ...>
+ // declare var x;
+ // /// <reference-path ...>
+ // interface F {}
+ // The first /// will NOT be removed while the second one will be removed eventhough both node will not be emitted
+ if (node.pos === 0) {
+ leadingComments = ts.filter(getLeadingCommentsToEmit(node), isTripleSlashComment);
+ }
+ }
+ ts.emitNewLineBeforeLeadingComments(currentSourceFile, writer, node, leadingComments);
+ // Leading comments are emitted at /*leading comment1 */space/*leading comment*/space
+ ts.emitComments(currentSourceFile, writer, leadingComments, /*trailingSeparator:*/ true, newLine, writeComment);
+ }
+ function emitTrailingComments(node) {
+ if (compilerOptions.removeComments) {
+ return;
+ }
+ // Emit the trailing comments only if the parent's end doesn't match
+ var trailingComments = getTrailingCommentsToEmit(node);
+ // trailing comments are emitted at space/*trailing comment1 */space/*trailing comment*/
+ ts.emitComments(currentSourceFile, writer, trailingComments, /*trailingSeparator*/ false, newLine, writeComment);
+ }
+ /**
+ * Emit trailing comments at the position. The term trailing comment is used here to describe following comment:
+ * x, /comment1/ y
+ * ^ => pos; the function will emit "comment1" in the emitJS
+ */
+ function emitTrailingCommentsOfPosition(pos) {
+ if (compilerOptions.removeComments) {
+ return;
+ }
+ var trailingComments = ts.getTrailingCommentRanges(currentSourceFile.text, pos);
+ // trailing comments are emitted at space/*trailing comment1 */space/*trailing comment*/
+ ts.emitComments(currentSourceFile, writer, trailingComments, /*trailingSeparator*/ true, newLine, writeComment);
+ }
+ function emitLeadingCommentsOfPositionWorker(pos) {
+ if (compilerOptions.removeComments) {
+ return;
+ }
+ var leadingComments;
+ if (hasDetachedComments(pos)) {
+ // get comments without detached comments
+ leadingComments = getLeadingCommentsWithoutDetachedComments();
+ }
+ else {
+ // get the leading comments from the node
+ leadingComments = ts.getLeadingCommentRanges(currentSourceFile.text, pos);
+ }
+ ts.emitNewLineBeforeLeadingComments(currentSourceFile, writer, { pos: pos, end: pos }, leadingComments);
+ // Leading comments are emitted at /*leading comment1 */space/*leading comment*/space
+ ts.emitComments(currentSourceFile, writer, leadingComments, /*trailingSeparator*/ true, newLine, writeComment);
+ }
+ function emitDetachedComments(node) {
+ var leadingComments;
+ if (compilerOptions.removeComments) {
+ // removeComments is true, only reserve pinned comment at the top of file
+ // For example:
+ // /*! Pinned Comment */
+ //
+ // var x = 10;
+ if (node.pos === 0) {
+ leadingComments = ts.filter(ts.getLeadingCommentRanges(currentSourceFile.text, node.pos), isPinnedComments);
+ }
+ }
+ else {
+ // removeComments is false, just get detached as normal and bypass the process to filter comment
+ leadingComments = ts.getLeadingCommentRanges(currentSourceFile.text, node.pos);
+ }
+ if (leadingComments) {
+ var detachedComments = [];
+ var lastComment;
+ ts.forEach(leadingComments, function (comment) {
+ if (lastComment) {
+ var lastCommentLine = ts.getLineOfLocalPosition(currentSourceFile, lastComment.end);
+ var commentLine = ts.getLineOfLocalPosition(currentSourceFile, comment.pos);
+ if (commentLine >= lastCommentLine + 2) {
+ // There was a blank line between the last comment and this comment. This
+ // comment is not part of the copyright comments. Return what we have so
+ // far.
+ return detachedComments;
+ }
+ }
+ detachedComments.push(comment);
+ lastComment = comment;
+ });
+ if (detachedComments.length) {
+ // All comments look like they could have been part of the copyright header. Make
+ // sure there is at least one blank line between it and the node. If not, it's not
+ // a copyright header.
+ var lastCommentLine = ts.getLineOfLocalPosition(currentSourceFile, ts.lastOrUndefined(detachedComments).end);
+ var nodeLine = ts.getLineOfLocalPosition(currentSourceFile, ts.skipTrivia(currentSourceFile.text, node.pos));
+ if (nodeLine >= lastCommentLine + 2) {
+ // Valid detachedComments
+ ts.emitNewLineBeforeLeadingComments(currentSourceFile, writer, node, leadingComments);
+ ts.emitComments(currentSourceFile, writer, detachedComments, /*trailingSeparator*/ true, newLine, writeComment);
+ var currentDetachedCommentInfo = { nodePos: node.pos, detachedCommentEndPos: ts.lastOrUndefined(detachedComments).end };
+ if (detachedCommentsInfo) {
+ detachedCommentsInfo.push(currentDetachedCommentInfo);
+ }
+ else {
+ detachedCommentsInfo = [currentDetachedCommentInfo];
+ }
+ }
+ }
+ }
+ }
+ function emitShebang() {
+ var shebang = ts.getShebang(currentSourceFile.text);
+ if (shebang) {
+ write(shebang);
+ }
+ }
+ var _a;
+ }
+ function emitFile(jsFilePath, sourceFile) {
+ emitJavaScript(jsFilePath, sourceFile);
+ if (compilerOptions.declaration) {
+ ts.writeDeclarationFile(jsFilePath, sourceFile, host, resolver, diagnostics);
+ }
+ }
+ }
+ ts.emitFiles = emitFiles;
+})(ts || (ts = {}));
+/// <reference path="sys.ts" />
+/// <reference path="emitter.ts" />
+/// <reference path="core.ts" />
+var ts;
+(function (ts) {
+ /* @internal */ ts.programTime = 0;
+ /* @internal */ ts.emitTime = 0;
+ /* @internal */ ts.ioReadTime = 0;
+ /* @internal */ ts.ioWriteTime = 0;
+ /** The version of the TypeScript compiler release */
+ var emptyArray = [];
+ ts.version = "1.7.3";
+ function findConfigFile(searchPath) {
+ var fileName = "tsconfig.json";
+ while (true) {
+ if (ts.sys.fileExists(fileName)) {
+ return fileName;
+ }
+ var parentPath = ts.getDirectoryPath(searchPath);
+ if (parentPath === searchPath) {
+ break;
+ }
+ searchPath = parentPath;
+ fileName = "../" + fileName;
+ }
+ return undefined;
+ }
+ ts.findConfigFile = findConfigFile;
+ function resolveTripleslashReference(moduleName, containingFile) {
+ var basePath = ts.getDirectoryPath(containingFile);
+ var referencedFileName = ts.isRootedDiskPath(moduleName) ? moduleName : ts.combinePaths(basePath, moduleName);
+ return ts.normalizePath(referencedFileName);
+ }
+ ts.resolveTripleslashReference = resolveTripleslashReference;
+ function resolveModuleName(moduleName, containingFile, compilerOptions, host) {
+ var moduleResolution = compilerOptions.moduleResolution !== undefined
+ ? compilerOptions.moduleResolution
+ : compilerOptions.module === 1 /* CommonJS */ ? 2 /* NodeJs */ : 1 /* Classic */;
+ switch (moduleResolution) {
+ case 2 /* NodeJs */: return nodeModuleNameResolver(moduleName, containingFile, host);
+ case 1 /* Classic */: return classicNameResolver(moduleName, containingFile, compilerOptions, host);
+ }
+ }
+ ts.resolveModuleName = resolveModuleName;
+ function nodeModuleNameResolver(moduleName, containingFile, host) {
+ var containingDirectory = ts.getDirectoryPath(containingFile);
+ if (ts.getRootLength(moduleName) !== 0 || nameStartsWithDotSlashOrDotDotSlash(moduleName)) {
+ var failedLookupLocations = [];
+ var candidate = ts.normalizePath(ts.combinePaths(containingDirectory, moduleName));
+ var resolvedFileName = loadNodeModuleFromFile(candidate, failedLookupLocations, host);
+ if (resolvedFileName) {
+ return { resolvedModule: { resolvedFileName: resolvedFileName }, failedLookupLocations: failedLookupLocations };
+ }
+ resolvedFileName = loadNodeModuleFromDirectory(candidate, failedLookupLocations, host);
+ return resolvedFileName
+ ? { resolvedModule: { resolvedFileName: resolvedFileName }, failedLookupLocations: failedLookupLocations }
+ : { resolvedModule: undefined, failedLookupLocations: failedLookupLocations };
+ }
+ else {
+ return loadModuleFromNodeModules(moduleName, containingDirectory, host);
+ }
+ }
+ ts.nodeModuleNameResolver = nodeModuleNameResolver;
+ function loadNodeModuleFromFile(candidate, failedLookupLocation, host) {
+ return ts.forEach(ts.moduleFileExtensions, tryLoad);
+ function tryLoad(ext) {
+ var fileName = ts.fileExtensionIs(candidate, ext) ? candidate : candidate + ext;
+ if (host.fileExists(fileName)) {
+ return fileName;
+ }
+ else {
+ failedLookupLocation.push(fileName);
+ return undefined;
+ }
+ }
+ }
+ function loadNodeModuleFromDirectory(candidate, failedLookupLocation, host) {
+ var packageJsonPath = ts.combinePaths(candidate, "package.json");
+ if (host.fileExists(packageJsonPath)) {
+ var jsonContent;
+ try {
+ var jsonText = host.readFile(packageJsonPath);
+ jsonContent = jsonText ? JSON.parse(jsonText) : { typings: undefined };
+ }
+ catch (e) {
+ // gracefully handle if readFile fails or returns not JSON
+ jsonContent = { typings: undefined };
+ }
+ if (jsonContent.typings) {
+ var result = loadNodeModuleFromFile(ts.normalizePath(ts.combinePaths(candidate, jsonContent.typings)), failedLookupLocation, host);
+ if (result) {
+ return result;
+ }
+ }
+ }
+ else {
+ // record package json as one of failed lookup locations - in the future if this file will appear it will invalidate resolution results
+ failedLookupLocation.push(packageJsonPath);
+ }
+ return loadNodeModuleFromFile(ts.combinePaths(candidate, "index"), failedLookupLocation, host);
+ }
+ function loadModuleFromNodeModules(moduleName, directory, host) {
+ var failedLookupLocations = [];
+ directory = ts.normalizeSlashes(directory);
+ while (true) {
+ var baseName = ts.getBaseFileName(directory);
+ if (baseName !== "node_modules") {
+ var nodeModulesFolder = ts.combinePaths(directory, "node_modules");
+ var candidate = ts.normalizePath(ts.combinePaths(nodeModulesFolder, moduleName));
+ var result = loadNodeModuleFromFile(candidate, failedLookupLocations, host);
+ if (result) {
+ return { resolvedModule: { resolvedFileName: result, isExternalLibraryImport: true }, failedLookupLocations: failedLookupLocations };
+ }
+ result = loadNodeModuleFromDirectory(candidate, failedLookupLocations, host);
+ if (result) {
+ return { resolvedModule: { resolvedFileName: result, isExternalLibraryImport: true }, failedLookupLocations: failedLookupLocations };
+ }
+ }
+ var parentPath = ts.getDirectoryPath(directory);
+ if (parentPath === directory) {
+ break;
+ }
+ directory = parentPath;
+ }
+ return { resolvedModule: undefined, failedLookupLocations: failedLookupLocations };
+ }
+ function nameStartsWithDotSlashOrDotDotSlash(name) {
+ var i = name.lastIndexOf("./", 1);
+ return i === 0 || (i === 1 && name.charCodeAt(0) === 46 /* dot */);
+ }
+ function classicNameResolver(moduleName, containingFile, compilerOptions, host) {
+ // module names that contain '!' are used to reference resources and are not resolved to actual files on disk
+ if (moduleName.indexOf("!") != -1) {
+ return { resolvedModule: undefined, failedLookupLocations: [] };
+ }
+ var searchPath = ts.getDirectoryPath(containingFile);
+ var searchName;
+ var failedLookupLocations = [];
+ var referencedSourceFile;
+ while (true) {
+ searchName = ts.normalizePath(ts.combinePaths(searchPath, moduleName));
+ referencedSourceFile = ts.forEach(ts.supportedExtensions, function (extension) {
+ if (extension === ".tsx" && !compilerOptions.jsx) {
+ // resolve .tsx files only if jsx support is enabled
+ // 'logical not' handles both undefined and None cases
+ return undefined;
+ }
+ var candidate = searchName + extension;
+ if (host.fileExists(candidate)) {
+ return candidate;
+ }
+ else {
+ failedLookupLocations.push(candidate);
+ }
+ });
+ if (referencedSourceFile) {
+ break;
+ }
+ var parentPath = ts.getDirectoryPath(searchPath);
+ if (parentPath === searchPath) {
+ break;
+ }
+ searchPath = parentPath;
+ }
+ return referencedSourceFile
+ ? { resolvedModule: { resolvedFileName: referencedSourceFile }, failedLookupLocations: failedLookupLocations }
+ : { resolvedModule: undefined, failedLookupLocations: failedLookupLocations };
+ }
+ ts.classicNameResolver = classicNameResolver;
+ /* @internal */
+ ts.defaultInitCompilerOptions = {
+ module: 1 /* CommonJS */,
+ target: 0 /* ES3 */,
+ noImplicitAny: false,
+ outDir: "built",
+ rootDir: ".",
+ sourceMap: false
+ };
+ function createCompilerHost(options, setParentNodes) {
+ var currentDirectory;
+ var existingDirectories = {};
+ function getCanonicalFileName(fileName) {
+ // if underlying system can distinguish between two files whose names differs only in cases then file name already in canonical form.
+ // otherwise use toLowerCase as a canonical form.
+ return ts.sys.useCaseSensitiveFileNames ? fileName : fileName.toLowerCase();
+ }
+ // returned by CScript sys environment
+ var unsupportedFileEncodingErrorCode = -2147024809;
+ function getSourceFile(fileName, languageVersion, onError) {
+ var text;
+ try {
+ var start = new Date().getTime();
+ text = ts.sys.readFile(fileName, options.charset);
+ ts.ioReadTime += new Date().getTime() - start;
+ }
+ catch (e) {
+ if (onError) {
+ onError(e.number === unsupportedFileEncodingErrorCode
+ ? ts.createCompilerDiagnostic(ts.Diagnostics.Unsupported_file_encoding).messageText
+ : e.message);
+ }
+ text = "";
+ }
+ return text !== undefined ? ts.createSourceFile(fileName, text, languageVersion, setParentNodes) : undefined;
+ }
+ function directoryExists(directoryPath) {
+ if (ts.hasProperty(existingDirectories, directoryPath)) {
+ return true;
+ }
+ if (ts.sys.directoryExists(directoryPath)) {
+ existingDirectories[directoryPath] = true;
+ return true;
+ }
+ return false;
+ }
+ function ensureDirectoriesExist(directoryPath) {
+ if (directoryPath.length > ts.getRootLength(directoryPath) && !directoryExists(directoryPath)) {
+ var parentDirectory = ts.getDirectoryPath(directoryPath);
+ ensureDirectoriesExist(parentDirectory);
+ ts.sys.createDirectory(directoryPath);
+ }
+ }
+ function writeFile(fileName, data, writeByteOrderMark, onError) {
+ try {
+ var start = new Date().getTime();
+ ensureDirectoriesExist(ts.getDirectoryPath(ts.normalizePath(fileName)));
+ ts.sys.writeFile(fileName, data, writeByteOrderMark);
+ ts.ioWriteTime += new Date().getTime() - start;
+ }
+ catch (e) {
+ if (onError) {
+ onError(e.message);
+ }
+ }
+ }
+ var newLine = ts.getNewLineCharacter(options);
+ return {
+ getSourceFile: getSourceFile,
+ getDefaultLibFileName: function (options) { return ts.combinePaths(ts.getDirectoryPath(ts.normalizePath(ts.sys.getExecutingFilePath())), ts.getDefaultLibFileName(options)); },
+ writeFile: writeFile,
+ getCurrentDirectory: function () { return currentDirectory || (currentDirectory = ts.sys.getCurrentDirectory()); },
+ useCaseSensitiveFileNames: function () { return ts.sys.useCaseSensitiveFileNames; },
+ getCanonicalFileName: getCanonicalFileName,
+ getNewLine: function () { return newLine; },
+ fileExists: function (fileName) { return ts.sys.fileExists(fileName); },
+ readFile: function (fileName) { return ts.sys.readFile(fileName); }
+ };
+ }
+ ts.createCompilerHost = createCompilerHost;
+ function getPreEmitDiagnostics(program, sourceFile, cancellationToken) {
+ var diagnostics = program.getOptionsDiagnostics(cancellationToken).concat(program.getSyntacticDiagnostics(sourceFile, cancellationToken), program.getGlobalDiagnostics(cancellationToken), program.getSemanticDiagnostics(sourceFile, cancellationToken));
+ if (program.getCompilerOptions().declaration) {
+ diagnostics.concat(program.getDeclarationDiagnostics(sourceFile, cancellationToken));
+ }
+ return ts.sortAndDeduplicateDiagnostics(diagnostics);
+ }
+ ts.getPreEmitDiagnostics = getPreEmitDiagnostics;
+ function flattenDiagnosticMessageText(messageText, newLine) {
+ if (typeof messageText === "string") {
+ return messageText;
+ }
+ else {
+ var diagnosticChain = messageText;
+ var result = "";
+ var indent = 0;
+ while (diagnosticChain) {
+ if (indent) {
+ result += newLine;
+ for (var i = 0; i < indent; i++) {
+ result += " ";
+ }
+ }
+ result += diagnosticChain.messageText;
+ indent++;
+ diagnosticChain = diagnosticChain.next;
+ }
+ return result;
+ }
+ }
+ ts.flattenDiagnosticMessageText = flattenDiagnosticMessageText;
+ function createProgram(rootNames, options, host, oldProgram) {
+ var program;
+ var files = [];
+ var fileProcessingDiagnostics = ts.createDiagnosticCollection();
+ var programDiagnostics = ts.createDiagnosticCollection();
+ var commonSourceDirectory;
+ var diagnosticsProducingTypeChecker;
+ var noDiagnosticsTypeChecker;
+ var classifiableNames;
+ var skipDefaultLib = options.noLib;
+ var start = new Date().getTime();
+ host = host || createCompilerHost(options);
+ var resolveModuleNamesWorker = host.resolveModuleNames
+ ? (function (moduleNames, containingFile) { return host.resolveModuleNames(moduleNames, containingFile); })
+ : (function (moduleNames, containingFile) { return ts.map(moduleNames, function (moduleName) { return resolveModuleName(moduleName, containingFile, options, host).resolvedModule; }); });
+ var filesByName = ts.createFileMap(function (fileName) { return host.getCanonicalFileName(fileName); });
+ if (oldProgram) {
+ // check properties that can affect structure of the program or module resolution strategy
+ // if any of these properties has changed - structure cannot be reused
+ var oldOptions = oldProgram.getCompilerOptions();
+ if ((oldOptions.module !== options.module) ||
+ (oldOptions.noResolve !== options.noResolve) ||
+ (oldOptions.target !== options.target) ||
+ (oldOptions.noLib !== options.noLib) ||
+ (oldOptions.jsx !== options.jsx)) {
+ oldProgram = undefined;
+ }
+ }
+ if (!tryReuseStructureFromOldProgram()) {
+ ts.forEach(rootNames, function (name) { return processRootFile(name, false); });
+ // Do not process the default library if:
+ // - The '--noLib' flag is used.
+ // - A 'no-default-lib' reference comment is encountered in
+ // processing the root files.
+ if (!skipDefaultLib) {
+ processRootFile(host.getDefaultLibFileName(options), true);
+ }
+ }
+ verifyCompilerOptions();
+ // unconditionally set oldProgram to undefined to prevent it from being captured in closure
+ oldProgram = undefined;
+ ts.programTime += new Date().getTime() - start;
+ program = {
+ getRootFileNames: function () { return rootNames; },
+ getSourceFile: getSourceFile,
+ getSourceFiles: function () { return files; },
+ getCompilerOptions: function () { return options; },
+ getSyntacticDiagnostics: getSyntacticDiagnostics,
+ getOptionsDiagnostics: getOptionsDiagnostics,
+ getGlobalDiagnostics: getGlobalDiagnostics,
+ getSemanticDiagnostics: getSemanticDiagnostics,
+ getDeclarationDiagnostics: getDeclarationDiagnostics,
+ getTypeChecker: getTypeChecker,
+ getClassifiableNames: getClassifiableNames,
+ getDiagnosticsProducingTypeChecker: getDiagnosticsProducingTypeChecker,
+ getCommonSourceDirectory: function () { return commonSourceDirectory; },
+ emit: emit,
+ getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+ getNodeCount: function () { return getDiagnosticsProducingTypeChecker().getNodeCount(); },
+ getIdentifierCount: function () { return getDiagnosticsProducingTypeChecker().getIdentifierCount(); },
+ getSymbolCount: function () { return getDiagnosticsProducingTypeChecker().getSymbolCount(); },
+ getTypeCount: function () { return getDiagnosticsProducingTypeChecker().getTypeCount(); },
+ getFileProcessingDiagnostics: function () { return fileProcessingDiagnostics; }
+ };
+ return program;
+ function getClassifiableNames() {
+ if (!classifiableNames) {
+ // Initialize a checker so that all our files are bound.
+ getTypeChecker();
+ classifiableNames = {};
+ for (var _i = 0; _i < files.length; _i++) {
+ var sourceFile = files[_i];
+ ts.copyMap(sourceFile.classifiableNames, classifiableNames);
+ }
+ }
+ return classifiableNames;
+ }
+ function tryReuseStructureFromOldProgram() {
+ if (!oldProgram) {
+ return false;
+ }
+ ts.Debug.assert(!oldProgram.structureIsReused);
+ // there is an old program, check if we can reuse its structure
+ var oldRootNames = oldProgram.getRootFileNames();
+ if (!ts.arrayIsEqualTo(oldRootNames, rootNames)) {
+ return false;
+ }
+ // check if program source files has changed in the way that can affect structure of the program
+ var newSourceFiles = [];
+ var modifiedSourceFiles = [];
+ for (var _i = 0, _a = oldProgram.getSourceFiles(); _i < _a.length; _i++) {
+ var oldSourceFile = _a[_i];
+ var newSourceFile = host.getSourceFile(oldSourceFile.fileName, options.target);
+ if (!newSourceFile) {
+ return false;
+ }
+ if (oldSourceFile !== newSourceFile) {
+ if (oldSourceFile.hasNoDefaultLib !== newSourceFile.hasNoDefaultLib) {
+ // value of no-default-lib has changed
+ // this will affect if default library is injected into the list of files
+ return false;
+ }
+ // check tripleslash references
+ if (!ts.arrayIsEqualTo(oldSourceFile.referencedFiles, newSourceFile.referencedFiles, fileReferenceIsEqualTo)) {
+ // tripleslash references has changed
+ return false;
+ }
+ // check imports
+ collectExternalModuleReferences(newSourceFile);
+ if (!ts.arrayIsEqualTo(oldSourceFile.imports, newSourceFile.imports, moduleNameIsEqualTo)) {
+ // imports has changed
+ return false;
+ }
+ if (resolveModuleNamesWorker) {
+ var moduleNames = ts.map(newSourceFile.imports, function (name) { return name.text; });
+ var resolutions = resolveModuleNamesWorker(moduleNames, newSourceFile.fileName);
+ // ensure that module resolution results are still correct
+ for (var i = 0; i < moduleNames.length; ++i) {
+ var newResolution = resolutions[i];
+ var oldResolution = ts.getResolvedModule(oldSourceFile, moduleNames[i]);
+ var resolutionChanged = oldResolution
+ ? !newResolution ||
+ oldResolution.resolvedFileName !== newResolution.resolvedFileName ||
+ !!oldResolution.isExternalLibraryImport !== !!newResolution.isExternalLibraryImport
+ : newResolution;
+ if (resolutionChanged) {
+ return false;
+ }
+ }
+ }
+ // pass the cache of module resolutions from the old source file
+ newSourceFile.resolvedModules = oldSourceFile.resolvedModules;
+ modifiedSourceFiles.push(newSourceFile);
+ }
+ else {
+ // file has no changes - use it as is
+ newSourceFile = oldSourceFile;
+ }
+ // if file has passed all checks it should be safe to reuse it
+ newSourceFiles.push(newSourceFile);
+ }
+ // update fileName -> file mapping
+ for (var _b = 0; _b < newSourceFiles.length; _b++) {
+ var file = newSourceFiles[_b];
+ filesByName.set(file.fileName, file);
+ }
+ files = newSourceFiles;
+ fileProcessingDiagnostics = oldProgram.getFileProcessingDiagnostics();
+ for (var _c = 0; _c < modifiedSourceFiles.length; _c++) {
+ var modifiedFile = modifiedSourceFiles[_c];
+ fileProcessingDiagnostics.reattachFileDiagnostics(modifiedFile);
+ }
+ oldProgram.structureIsReused = true;
+ return true;
+ }
+ function getEmitHost(writeFileCallback) {
+ return {
+ getCanonicalFileName: function (fileName) { return host.getCanonicalFileName(fileName); },
+ getCommonSourceDirectory: program.getCommonSourceDirectory,
+ getCompilerOptions: program.getCompilerOptions,
+ getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+ getNewLine: function () { return host.getNewLine(); },
+ getSourceFile: program.getSourceFile,
+ getSourceFiles: program.getSourceFiles,
+ writeFile: writeFileCallback || (function (fileName, data, writeByteOrderMark, onError) { return host.writeFile(fileName, data, writeByteOrderMark, onError); })
+ };
+ }
+ function getDiagnosticsProducingTypeChecker() {
+ return diagnosticsProducingTypeChecker || (diagnosticsProducingTypeChecker = ts.createTypeChecker(program, /*produceDiagnostics:*/ true));
+ }
+ function getTypeChecker() {
+ return noDiagnosticsTypeChecker || (noDiagnosticsTypeChecker = ts.createTypeChecker(program, /*produceDiagnostics:*/ false));
+ }
+ function emit(sourceFile, writeFileCallback, cancellationToken) {
+ var _this = this;
+ return runWithCancellationToken(function () { return emitWorker(_this, sourceFile, writeFileCallback, cancellationToken); });
+ }
+ function emitWorker(program, sourceFile, writeFileCallback, cancellationToken) {
+ // If the noEmitOnError flag is set, then check if we have any errors so far. If so,
+ // immediately bail out. Note that we pass 'undefined' for 'sourceFile' so that we
+ // get any preEmit diagnostics, not just the ones
+ if (options.noEmitOnError && getPreEmitDiagnostics(program, /*sourceFile:*/ undefined, cancellationToken).length > 0) {
+ return { diagnostics: [], sourceMaps: undefined, emitSkipped: true };
+ }
+ // Create the emit resolver outside of the "emitTime" tracking code below. That way
+ // any cost associated with it (like type checking) are appropriate associated with
+ // the type-checking counter.
+ //
+ // If the -out option is specified, we should not pass the source file to getEmitResolver.
+ // This is because in the -out scenario all files need to be emitted, and therefore all
+ // files need to be type checked. And the way to specify that all files need to be type
+ // checked is to not pass the file to getEmitResolver.
+ var emitResolver = getDiagnosticsProducingTypeChecker().getEmitResolver((options.outFile || options.out) ? undefined : sourceFile);
+ var start = new Date().getTime();
+ var emitResult = ts.emitFiles(emitResolver, getEmitHost(writeFileCallback), sourceFile);
+ ts.emitTime += new Date().getTime() - start;
+ return emitResult;
+ }
+ function getSourceFile(fileName) {
+ // first try to use file name as is to find file
+ // then try to convert relative file name to absolute and use it to retrieve source file
+ return filesByName.get(fileName) || filesByName.get(ts.getNormalizedAbsolutePath(fileName, host.getCurrentDirectory()));
+ }
+ function getDiagnosticsHelper(sourceFile, getDiagnostics, cancellationToken) {
+ if (sourceFile) {
+ return getDiagnostics(sourceFile, cancellationToken);
+ }
+ var allDiagnostics = [];
+ ts.forEach(program.getSourceFiles(), function (sourceFile) {
+ if (cancellationToken) {
+ cancellationToken.throwIfCancellationRequested();
+ }
+ ts.addRange(allDiagnostics, getDiagnostics(sourceFile, cancellationToken));
+ });
+ return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
+ }
+ function getSyntacticDiagnostics(sourceFile, cancellationToken) {
+ return getDiagnosticsHelper(sourceFile, getSyntacticDiagnosticsForFile, cancellationToken);
+ }
+ function getSemanticDiagnostics(sourceFile, cancellationToken) {
+ return getDiagnosticsHelper(sourceFile, getSemanticDiagnosticsForFile, cancellationToken);
+ }
+ function getDeclarationDiagnostics(sourceFile, cancellationToken) {
+ return getDiagnosticsHelper(sourceFile, getDeclarationDiagnosticsForFile, cancellationToken);
+ }
+ function getSyntacticDiagnosticsForFile(sourceFile, cancellationToken) {
+ return sourceFile.parseDiagnostics;
+ }
+ function runWithCancellationToken(func) {
+ try {
+ return func();
+ }
+ catch (e) {
+ if (e instanceof ts.OperationCanceledException) {
+ // We were canceled while performing the operation. Because our type checker
+ // might be a bad state, we need to throw it away.
+ //
+ // Note: we are overly agressive here. We do not actually *have* to throw away
+ // the "noDiagnosticsTypeChecker". However, for simplicity, i'd like to keep
+ // the lifetimes of these two TypeCheckers the same. Also, we generally only
+ // cancel when the user has made a change anyways. And, in that case, we (the
+ // program instance) will get thrown away anyways. So trying to keep one of
+ // these type checkers alive doesn't serve much purpose.
+ noDiagnosticsTypeChecker = undefined;
+ diagnosticsProducingTypeChecker = undefined;
+ }
+ throw e;
+ }
+ }
+ function getSemanticDiagnosticsForFile(sourceFile, cancellationToken) {
+ return runWithCancellationToken(function () {
+ var typeChecker = getDiagnosticsProducingTypeChecker();
+ ts.Debug.assert(!!sourceFile.bindDiagnostics);
+ var bindDiagnostics = sourceFile.bindDiagnostics;
+ var checkDiagnostics = typeChecker.getDiagnostics(sourceFile, cancellationToken);
+ var fileProcessingDiagnosticsInFile = fileProcessingDiagnostics.getDiagnostics(sourceFile.fileName);
+ var programDiagnosticsInFile = programDiagnostics.getDiagnostics(sourceFile.fileName);
+ return bindDiagnostics.concat(checkDiagnostics).concat(fileProcessingDiagnosticsInFile).concat(programDiagnosticsInFile);
+ });
+ }
+ function getDeclarationDiagnosticsForFile(sourceFile, cancellationToken) {
+ return runWithCancellationToken(function () {
+ if (!ts.isDeclarationFile(sourceFile)) {
+ var resolver = getDiagnosticsProducingTypeChecker().getEmitResolver(sourceFile, cancellationToken);
+ // Don't actually write any files since we're just getting diagnostics.
+ var writeFile_1 = function () { };
+ return ts.getDeclarationDiagnostics(getEmitHost(writeFile_1), resolver, sourceFile);
+ }
+ });
+ }
+ function getOptionsDiagnostics() {
+ var allDiagnostics = [];
+ ts.addRange(allDiagnostics, fileProcessingDiagnostics.getGlobalDiagnostics());
+ ts.addRange(allDiagnostics, programDiagnostics.getGlobalDiagnostics());
+ return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
+ }
+ function getGlobalDiagnostics() {
+ var allDiagnostics = [];
+ ts.addRange(allDiagnostics, getDiagnosticsProducingTypeChecker().getGlobalDiagnostics());
+ return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
+ }
+ function hasExtension(fileName) {
+ return ts.getBaseFileName(fileName).indexOf(".") >= 0;
+ }
+ function processRootFile(fileName, isDefaultLib) {
+ processSourceFile(ts.normalizePath(fileName), isDefaultLib);
+ }
+ function fileReferenceIsEqualTo(a, b) {
+ return a.fileName === b.fileName;
+ }
+ function moduleNameIsEqualTo(a, b) {
+ return a.text === b.text;
+ }
+ function collectExternalModuleReferences(file) {
+ if (file.imports) {
+ return;
+ }
+ var imports;
+ for (var _i = 0, _a = file.statements; _i < _a.length; _i++) {
+ var node = _a[_i];
+ collect(node, /* allowRelativeModuleNames */ true);
+ }
+ file.imports = imports || emptyArray;
+ function collect(node, allowRelativeModuleNames) {
+ switch (node.kind) {
+ case 222 /* ImportDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 228 /* ExportDeclaration */:
+ var moduleNameExpr = ts.getExternalModuleName(node);
+ if (!moduleNameExpr || moduleNameExpr.kind !== 9 /* StringLiteral */) {
+ break;
+ }
+ if (!moduleNameExpr.text) {
+ break;
+ }
+ if (allowRelativeModuleNames || !ts.isExternalModuleNameRelative(moduleNameExpr.text)) {
+ (imports || (imports = [])).push(moduleNameExpr);
+ }
+ break;
+ case 218 /* ModuleDeclaration */:
+ if (node.name.kind === 9 /* StringLiteral */ && (node.flags & 2 /* Ambient */ || ts.isDeclarationFile(file))) {
+ // TypeScript 1.0 spec (April 2014): 12.1.6
+ // An AmbientExternalModuleDeclaration declares an external module.
+ // This type of declaration is permitted only in the global module.
+ // The StringLiteral must specify a top - level external module name.
+ // Relative external module names are not permitted
+ ts.forEachChild(node.body, function (node) {
+ // TypeScript 1.0 spec (April 2014): 12.1.6
+ // An ExternalImportDeclaration in anAmbientExternalModuleDeclaration may reference other external modules
+ // only through top - level external module names. Relative external module names are not permitted.
+ collect(node, /* allowRelativeModuleNames */ false);
+ });
+ }
+ break;
+ }
+ }
+ }
+ function processSourceFile(fileName, isDefaultLib, refFile, refPos, refEnd) {
+ var diagnosticArgument;
+ var diagnostic;
+ if (hasExtension(fileName)) {
+ if (!options.allowNonTsExtensions && !ts.forEach(ts.supportedExtensions, function (extension) { return ts.fileExtensionIs(host.getCanonicalFileName(fileName), extension); })) {
+ diagnostic = ts.Diagnostics.File_0_has_unsupported_extension_The_only_supported_extensions_are_1;
+ diagnosticArgument = [fileName, "'" + ts.supportedExtensions.join("', '") + "'"];
+ }
+ else if (!findSourceFile(fileName, isDefaultLib, refFile, refPos, refEnd)) {
+ diagnostic = ts.Diagnostics.File_0_not_found;
+ diagnosticArgument = [fileName];
+ }
+ else if (refFile && host.getCanonicalFileName(fileName) === host.getCanonicalFileName(refFile.fileName)) {
+ diagnostic = ts.Diagnostics.A_file_cannot_have_a_reference_to_itself;
+ diagnosticArgument = [fileName];
+ }
+ }
+ else {
+ var nonTsFile = options.allowNonTsExtensions && findSourceFile(fileName, isDefaultLib, refFile, refPos, refEnd);
+ if (!nonTsFile) {
+ if (options.allowNonTsExtensions) {
+ diagnostic = ts.Diagnostics.File_0_not_found;
+ diagnosticArgument = [fileName];
+ }
+ else if (!ts.forEach(ts.supportedExtensions, function (extension) { return findSourceFile(fileName + extension, isDefaultLib, refFile, refPos, refEnd); })) {
+ diagnostic = ts.Diagnostics.File_0_not_found;
+ fileName += ".ts";
+ diagnosticArgument = [fileName];
+ }
+ }
+ }
+ if (diagnostic) {
+ if (refFile !== undefined && refEnd !== undefined && refPos !== undefined) {
+ fileProcessingDiagnostics.add(ts.createFileDiagnostic.apply(void 0, [refFile, refPos, refEnd - refPos, diagnostic].concat(diagnosticArgument)));
+ }
+ else {
+ fileProcessingDiagnostics.add(ts.createCompilerDiagnostic.apply(void 0, [diagnostic].concat(diagnosticArgument)));
+ }
+ }
+ }
+ // Get source file from normalized fileName
+ function findSourceFile(fileName, isDefaultLib, refFile, refPos, refEnd) {
+ if (filesByName.contains(fileName)) {
+ // We've already looked for this file, use cached result
+ return getSourceFileFromCache(fileName, /*useAbsolutePath*/ false);
+ }
+ var normalizedAbsolutePath = ts.getNormalizedAbsolutePath(fileName, host.getCurrentDirectory());
+ if (filesByName.contains(normalizedAbsolutePath)) {
+ var file_1 = getSourceFileFromCache(normalizedAbsolutePath, /*useAbsolutePath*/ true);
+ // we don't have resolution for this relative file name but the match was found by absolute file name
+ // store resolution for relative name as well
+ filesByName.set(fileName, file_1);
+ return file_1;
+ }
+ // We haven't looked for this file, do so now and cache result
+ var file = host.getSourceFile(fileName, options.target, function (hostErrorMessage) {
+ if (refFile !== undefined && refPos !== undefined && refEnd !== undefined) {
+ fileProcessingDiagnostics.add(ts.createFileDiagnostic(refFile, refPos, refEnd - refPos, ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, hostErrorMessage));
+ }
+ else {
+ fileProcessingDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, hostErrorMessage));
+ }
+ });
+ filesByName.set(fileName, file);
+ if (file) {
+ skipDefaultLib = skipDefaultLib || file.hasNoDefaultLib;
+ // Set the source file for normalized absolute path
+ filesByName.set(normalizedAbsolutePath, file);
+ var basePath = ts.getDirectoryPath(fileName);
+ if (!options.noResolve) {
+ processReferencedFiles(file, basePath);
+ }
+ // always process imported modules to record module name resolutions
+ processImportedModules(file, basePath);
+ if (isDefaultLib) {
+ file.isDefaultLib = true;
+ files.unshift(file);
+ }
+ else {
+ files.push(file);
+ }
+ }
+ return file;
+ function getSourceFileFromCache(fileName, useAbsolutePath) {
+ var file = filesByName.get(fileName);
+ if (file && host.useCaseSensitiveFileNames()) {
+ var sourceFileName = useAbsolutePath ? ts.getNormalizedAbsolutePath(file.fileName, host.getCurrentDirectory()) : file.fileName;
+ if (ts.normalizeSlashes(fileName) !== ts.normalizeSlashes(sourceFileName)) {
+ if (refFile !== undefined && refPos !== undefined && refEnd !== undefined) {
+ fileProcessingDiagnostics.add(ts.createFileDiagnostic(refFile, refPos, refEnd - refPos, ts.Diagnostics.File_name_0_differs_from_already_included_file_name_1_only_in_casing, fileName, sourceFileName));
+ }
+ else {
+ fileProcessingDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.File_name_0_differs_from_already_included_file_name_1_only_in_casing, fileName, sourceFileName));
+ }
+ }
+ }
+ return file;
+ }
+ }
+ function processReferencedFiles(file, basePath) {
+ ts.forEach(file.referencedFiles, function (ref) {
+ var referencedFileName = resolveTripleslashReference(ref.fileName, file.fileName);
+ processSourceFile(referencedFileName, /* isDefaultLib */ false, file, ref.pos, ref.end);
+ });
+ }
+ function processImportedModules(file, basePath) {
+ collectExternalModuleReferences(file);
+ if (file.imports.length) {
+ file.resolvedModules = {};
+ var moduleNames = ts.map(file.imports, function (name) { return name.text; });
+ var resolutions = resolveModuleNamesWorker(moduleNames, file.fileName);
+ for (var i = 0; i < file.imports.length; ++i) {
+ var resolution = resolutions[i];
+ ts.setResolvedModule(file, moduleNames[i], resolution);
+ if (resolution && !options.noResolve) {
+ var importedFile = findModuleSourceFile(resolution.resolvedFileName, file.imports[i]);
+ if (importedFile && resolution.isExternalLibraryImport) {
+ if (!ts.isExternalModule(importedFile)) {
+ var start_2 = ts.getTokenPosOfNode(file.imports[i], file);
+ fileProcessingDiagnostics.add(ts.createFileDiagnostic(file, start_2, file.imports[i].end - start_2, ts.Diagnostics.Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_the_package_definition, importedFile.fileName));
+ }
+ else if (importedFile.referencedFiles.length) {
+ var firstRef = importedFile.referencedFiles[0];
+ fileProcessingDiagnostics.add(ts.createFileDiagnostic(importedFile, firstRef.pos, firstRef.end - firstRef.pos, ts.Diagnostics.Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_package_author_to_update_the_package_definition));
+ }
+ }
+ }
+ }
+ }
+ else {
+ // no imports - drop cached module resolutions
+ file.resolvedModules = undefined;
+ }
+ return;
+ function findModuleSourceFile(fileName, nameLiteral) {
+ return findSourceFile(fileName, /* isDefaultLib */ false, file, ts.skipTrivia(file.text, nameLiteral.pos), nameLiteral.end);
+ }
+ }
+ function computeCommonSourceDirectory(sourceFiles) {
+ var commonPathComponents;
+ var currentDirectory = host.getCurrentDirectory();
+ ts.forEach(files, function (sourceFile) {
+ // Each file contributes into common source file path
+ if (ts.isDeclarationFile(sourceFile)) {
+ return;
+ }
+ var sourcePathComponents = ts.getNormalizedPathComponents(sourceFile.fileName, currentDirectory);
+ sourcePathComponents.pop(); // The base file name is not part of the common directory path
+ if (!commonPathComponents) {
+ // first file
+ commonPathComponents = sourcePathComponents;
+ return;
+ }
+ for (var i = 0, n = Math.min(commonPathComponents.length, sourcePathComponents.length); i < n; i++) {
+ if (commonPathComponents[i] !== sourcePathComponents[i]) {
+ if (i === 0) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_find_the_common_subdirectory_path_for_the_input_files));
+ return;
+ }
+ // New common path found that is 0 -> i-1
+ commonPathComponents.length = i;
+ break;
+ }
+ }
+ // If the sourcePathComponents was shorter than the commonPathComponents, truncate to the sourcePathComponents
+ if (sourcePathComponents.length < commonPathComponents.length) {
+ commonPathComponents.length = sourcePathComponents.length;
+ }
+ });
+ return ts.getNormalizedPathFromPathComponents(commonPathComponents);
+ }
+ function checkSourceFilesBelongToPath(sourceFiles, rootDirectory) {
+ var allFilesBelongToPath = true;
+ if (sourceFiles) {
+ var currentDirectory = host.getCurrentDirectory();
+ var absoluteRootDirectoryPath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(rootDirectory, currentDirectory));
+ for (var _i = 0; _i < sourceFiles.length; _i++) {
+ var sourceFile = sourceFiles[_i];
+ if (!ts.isDeclarationFile(sourceFile)) {
+ var absoluteSourceFilePath = host.getCanonicalFileName(ts.getNormalizedAbsolutePath(sourceFile.fileName, currentDirectory));
+ if (absoluteSourceFilePath.indexOf(absoluteRootDirectoryPath) !== 0) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files, sourceFile.fileName, options.rootDir));
+ allFilesBelongToPath = false;
+ }
+ }
+ }
+ }
+ return allFilesBelongToPath;
+ }
+ function verifyCompilerOptions() {
+ if (options.isolatedModules) {
+ if (options.declaration) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "declaration", "isolatedModules"));
+ }
+ if (options.noEmitOnError) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmitOnError", "isolatedModules"));
+ }
+ if (options.out) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "isolatedModules"));
+ }
+ if (options.outFile) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "outFile", "isolatedModules"));
+ }
+ }
+ if (options.inlineSourceMap) {
+ if (options.sourceMap) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "sourceMap", "inlineSourceMap"));
+ }
+ if (options.mapRoot) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "mapRoot", "inlineSourceMap"));
+ }
+ if (options.sourceRoot) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "sourceRoot", "inlineSourceMap"));
+ }
+ }
+ if (options.inlineSources) {
+ if (!options.sourceMap && !options.inlineSourceMap) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_inlineSources_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided));
+ }
+ }
+ if (options.out && options.outFile) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "out", "outFile"));
+ }
+ if (!options.sourceMap && (options.mapRoot || options.sourceRoot)) {
+ // Error to specify --mapRoot or --sourceRoot without mapSourceFiles
+ if (options.mapRoot) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "mapRoot", "sourceMap"));
+ }
+ if (options.sourceRoot) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "sourceRoot", "sourceMap"));
+ }
+ return;
+ }
+ var languageVersion = options.target || 0 /* ES3 */;
+ var outFile = options.outFile || options.out;
+ var firstExternalModuleSourceFile = ts.forEach(files, function (f) { return ts.isExternalModule(f) ? f : undefined; });
+ if (options.isolatedModules) {
+ if (!options.module && languageVersion < 2 /* ES6 */) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES6_or_higher));
+ }
+ var firstNonExternalModuleSourceFile = ts.forEach(files, function (f) { return !ts.isExternalModule(f) && !ts.isDeclarationFile(f) ? f : undefined; });
+ if (firstNonExternalModuleSourceFile) {
+ var span = ts.getErrorSpanForNode(firstNonExternalModuleSourceFile, firstNonExternalModuleSourceFile);
+ programDiagnostics.add(ts.createFileDiagnostic(firstNonExternalModuleSourceFile, span.start, span.length, ts.Diagnostics.Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided));
+ }
+ }
+ else if (firstExternalModuleSourceFile && languageVersion < 2 /* ES6 */ && !options.module) {
+ // We cannot use createDiagnosticFromNode because nodes do not have parents yet
+ var span = ts.getErrorSpanForNode(firstExternalModuleSourceFile, firstExternalModuleSourceFile.externalModuleIndicator);
+ programDiagnostics.add(ts.createFileDiagnostic(firstExternalModuleSourceFile, span.start, span.length, ts.Diagnostics.Cannot_compile_modules_unless_the_module_flag_is_provided));
+ }
+ // Cannot specify module gen target of es6 when below es6
+ if (options.module === 5 /* ES6 */ && languageVersion < 2 /* ES6 */) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_compile_modules_into_es6_when_targeting_ES5_or_lower));
+ }
+ // there has to be common source directory if user specified --outdir || --sourceRoot
+ // if user specified --mapRoot, there needs to be common source directory if there would be multiple files being emitted
+ if (options.outDir ||
+ options.sourceRoot ||
+ (options.mapRoot &&
+ (!outFile || firstExternalModuleSourceFile !== undefined))) {
+ if (options.rootDir && checkSourceFilesBelongToPath(files, options.rootDir)) {
+ // If a rootDir is specified and is valid use it as the commonSourceDirectory
+ commonSourceDirectory = ts.getNormalizedAbsolutePath(options.rootDir, host.getCurrentDirectory());
+ }
+ else {
+ // Compute the commonSourceDirectory from the input files
+ commonSourceDirectory = computeCommonSourceDirectory(files);
+ }
+ if (commonSourceDirectory && commonSourceDirectory[commonSourceDirectory.length - 1] !== ts.directorySeparator) {
+ // Make sure directory path ends with directory separator so this string can directly
+ // used to replace with "" to get the relative path of the source file and the relative path doesn't
+ // start with / making it rooted path
+ commonSourceDirectory += ts.directorySeparator;
+ }
+ }
+ if (options.noEmit) {
+ if (options.out) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", "out"));
+ }
+ if (options.outFile) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", "outFile"));
+ }
+ if (options.outDir) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", "outDir"));
+ }
+ if (options.declaration) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_with_option_1, "noEmit", "declaration"));
+ }
+ }
+ if (options.emitDecoratorMetadata &&
+ !options.experimentalDecorators) {
+ programDiagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Option_0_cannot_be_specified_without_specifying_option_1, "emitDecoratorMetadata", "experimentalDecorators"));
+ }
+ }
+ }
+ ts.createProgram = createProgram;
+})(ts || (ts = {}));
+/// <reference path="sys.ts"/>
+/// <reference path="types.ts"/>
+/// <reference path="core.ts"/>
+/// <reference path="scanner.ts"/>
+var ts;
+(function (ts) {
+ /* @internal */
+ ts.optionDeclarations = [
+ {
+ name: "charset",
+ type: "string"
+ },
+ {
+ name: "declaration",
+ shortName: "d",
+ type: "boolean",
+ description: ts.Diagnostics.Generates_corresponding_d_ts_file
+ },
+ {
+ name: "diagnostics",
+ type: "boolean"
+ },
+ {
+ name: "emitBOM",
+ type: "boolean"
+ },
+ {
+ name: "help",
+ shortName: "h",
+ type: "boolean",
+ description: ts.Diagnostics.Print_this_message
+ },
+ {
+ name: "init",
+ type: "boolean",
+ description: ts.Diagnostics.Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file
+ },
+ {
+ name: "inlineSourceMap",
+ type: "boolean"
+ },
+ {
+ name: "inlineSources",
+ type: "boolean"
+ },
+ {
+ name: "jsx",
+ type: {
+ "preserve": 1 /* Preserve */,
+ "react": 2 /* React */
+ },
+ paramType: ts.Diagnostics.KIND,
+ description: ts.Diagnostics.Specify_JSX_code_generation_Colon_preserve_or_react,
+ error: ts.Diagnostics.Argument_for_jsx_must_be_preserve_or_react
+ },
+ {
+ name: "listFiles",
+ type: "boolean"
+ },
+ {
+ name: "locale",
+ type: "string"
+ },
+ {
+ name: "mapRoot",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Specifies_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations,
+ paramType: ts.Diagnostics.LOCATION
+ },
+ {
+ name: "module",
+ shortName: "m",
+ type: {
+ "commonjs": 1 /* CommonJS */,
+ "amd": 2 /* AMD */,
+ "system": 4 /* System */,
+ "umd": 3 /* UMD */,
+ "es6": 5 /* ES6 */,
+ "es2015": 5 /* ES2015 */
+ },
+ description: ts.Diagnostics.Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es6,
+ paramType: ts.Diagnostics.KIND,
+ error: ts.Diagnostics.Argument_for_module_option_must_be_commonjs_amd_system_umd_or_es6
+ },
+ {
+ name: "newLine",
+ type: {
+ "crlf": 0 /* CarriageReturnLineFeed */,
+ "lf": 1 /* LineFeed */
+ },
+ description: ts.Diagnostics.Specifies_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix,
+ paramType: ts.Diagnostics.NEWLINE,
+ error: ts.Diagnostics.Argument_for_newLine_option_must_be_CRLF_or_LF
+ },
+ {
+ name: "noEmit",
+ type: "boolean",
+ description: ts.Diagnostics.Do_not_emit_outputs
+ },
+ {
+ name: "noEmitHelpers",
+ type: "boolean"
+ },
+ {
+ name: "noEmitOnError",
+ type: "boolean",
+ description: ts.Diagnostics.Do_not_emit_outputs_if_any_errors_were_reported
+ },
+ {
+ name: "noImplicitAny",
+ type: "boolean",
+ description: ts.Diagnostics.Raise_error_on_expressions_and_declarations_with_an_implied_any_type
+ },
+ {
+ name: "noLib",
+ type: "boolean"
+ },
+ {
+ name: "noResolve",
+ type: "boolean"
+ },
+ {
+ name: "skipDefaultLibCheck",
+ type: "boolean"
+ },
+ {
+ name: "out",
+ type: "string",
+ isFilePath: false,
+ // for correct behaviour, please use outFile
+ paramType: ts.Diagnostics.FILE
+ },
+ {
+ name: "outFile",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Concatenate_and_emit_output_to_single_file,
+ paramType: ts.Diagnostics.FILE
+ },
+ {
+ name: "outDir",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Redirect_output_structure_to_the_directory,
+ paramType: ts.Diagnostics.DIRECTORY
+ },
+ {
+ name: "preserveConstEnums",
+ type: "boolean",
+ description: ts.Diagnostics.Do_not_erase_const_enum_declarations_in_generated_code
+ },
+ {
+ name: "project",
+ shortName: "p",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Compile_the_project_in_the_given_directory,
+ paramType: ts.Diagnostics.DIRECTORY
+ },
+ {
+ name: "removeComments",
+ type: "boolean",
+ description: ts.Diagnostics.Do_not_emit_comments_to_output
+ },
+ {
+ name: "rootDir",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Specifies_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir,
+ paramType: ts.Diagnostics.LOCATION
+ },
+ {
+ name: "isolatedModules",
+ type: "boolean"
+ },
+ {
+ name: "sourceMap",
+ type: "boolean",
+ description: ts.Diagnostics.Generates_corresponding_map_file
+ },
+ {
+ name: "sourceRoot",
+ type: "string",
+ isFilePath: true,
+ description: ts.Diagnostics.Specifies_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations,
+ paramType: ts.Diagnostics.LOCATION
+ },
+ {
+ name: "suppressExcessPropertyErrors",
+ type: "boolean",
+ description: ts.Diagnostics.Suppress_excess_property_checks_for_object_literals,
+ experimental: true
+ },
+ {
+ name: "suppressImplicitAnyIndexErrors",
+ type: "boolean",
+ description: ts.Diagnostics.Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures
+ },
+ {
+ name: "stripInternal",
+ type: "boolean",
+ description: ts.Diagnostics.Do_not_emit_declarations_for_code_that_has_an_internal_annotation,
+ experimental: true
+ },
+ {
+ name: "target",
+ shortName: "t",
+ type: {
+ "es3": 0 /* ES3 */,
+ "es5": 1 /* ES5 */,
+ "es6": 2 /* ES6 */,
+ "es2015": 2 /* ES2015 */
+ },
+ description: ts.Diagnostics.Specify_ECMAScript_target_version_Colon_ES3_default_ES5_or_ES6_experimental,
+ paramType: ts.Diagnostics.VERSION,
+ error: ts.Diagnostics.Argument_for_target_option_must_be_ES3_ES5_or_ES6
+ },
+ {
+ name: "version",
+ shortName: "v",
+ type: "boolean",
+ description: ts.Diagnostics.Print_the_compiler_s_version
+ },
+ {
+ name: "watch",
+ shortName: "w",
+ type: "boolean",
+ description: ts.Diagnostics.Watch_input_files
+ },
+ {
+ name: "experimentalDecorators",
+ type: "boolean",
+ description: ts.Diagnostics.Enables_experimental_support_for_ES7_decorators
+ },
+ {
+ name: "emitDecoratorMetadata",
+ type: "boolean",
+ experimental: true,
+ description: ts.Diagnostics.Enables_experimental_support_for_emitting_type_metadata_for_decorators
+ },
+ {
+ name: "moduleResolution",
+ type: {
+ "node": 2 /* NodeJs */,
+ "classic": 1 /* Classic */
+ },
+ description: ts.Diagnostics.Specifies_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6,
+ error: ts.Diagnostics.Argument_for_moduleResolution_option_must_be_node_or_classic
+ }
+ ];
+ var optionNameMapCache;
+ /* @internal */
+ function getOptionNameMap() {
+ if (optionNameMapCache) {
+ return optionNameMapCache;
+ }
+ var optionNameMap = {};
+ var shortOptionNames = {};
+ ts.forEach(ts.optionDeclarations, function (option) {
+ optionNameMap[option.name.toLowerCase()] = option;
+ if (option.shortName) {
+ shortOptionNames[option.shortName] = option.name;
+ }
+ });
+ optionNameMapCache = { optionNameMap: optionNameMap, shortOptionNames: shortOptionNames };
+ return optionNameMapCache;
+ }
+ ts.getOptionNameMap = getOptionNameMap;
+ function parseCommandLine(commandLine, readFile) {
+ var options = {};
+ var fileNames = [];
+ var errors = [];
+ var _a = getOptionNameMap(), optionNameMap = _a.optionNameMap, shortOptionNames = _a.shortOptionNames;
+ parseStrings(commandLine);
+ return {
+ options: options,
+ fileNames: fileNames,
+ errors: errors
+ };
+ function parseStrings(args) {
+ var i = 0;
+ while (i < args.length) {
+ var s = args[i++];
+ if (s.charCodeAt(0) === 64 /* at */) {
+ parseResponseFile(s.slice(1));
+ }
+ else if (s.charCodeAt(0) === 45 /* minus */) {
+ s = s.slice(s.charCodeAt(1) === 45 /* minus */ ? 2 : 1).toLowerCase();
+ // Try to translate short option names to their full equivalents.
+ if (ts.hasProperty(shortOptionNames, s)) {
+ s = shortOptionNames[s];
+ }
+ if (ts.hasProperty(optionNameMap, s)) {
+ var opt = optionNameMap[s];
+ // Check to see if no argument was provided (e.g. "--locale" is the last command-line argument).
+ if (!args[i] && opt.type !== "boolean") {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_expects_an_argument, opt.name));
+ }
+ switch (opt.type) {
+ case "number":
+ options[opt.name] = parseInt(args[i++]);
+ break;
+ case "boolean":
+ options[opt.name] = true;
+ break;
+ case "string":
+ options[opt.name] = args[i++] || "";
+ break;
+ // If not a primitive, the possible types are specified in what is effectively a map of options.
+ default:
+ var map_2 = opt.type;
+ var key = (args[i++] || "").toLowerCase();
+ if (ts.hasProperty(map_2, key)) {
+ options[opt.name] = map_2[key];
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(opt.error));
+ }
+ }
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_compiler_option_0, s));
+ }
+ }
+ else {
+ fileNames.push(s);
+ }
+ }
+ }
+ function parseResponseFile(fileName) {
+ var text = readFile ? readFile(fileName) : ts.sys.readFile(fileName);
+ if (!text) {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.File_0_not_found, fileName));
+ return;
+ }
+ var args = [];
+ var pos = 0;
+ while (true) {
+ while (pos < text.length && text.charCodeAt(pos) <= 32 /* space */)
+ pos++;
+ if (pos >= text.length)
+ break;
+ var start = pos;
+ if (text.charCodeAt(start) === 34 /* doubleQuote */) {
+ pos++;
+ while (pos < text.length && text.charCodeAt(pos) !== 34 /* doubleQuote */)
+ pos++;
+ if (pos < text.length) {
+ args.push(text.substring(start + 1, pos));
+ pos++;
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unterminated_quoted_string_in_response_file_0, fileName));
+ }
+ }
+ else {
+ while (text.charCodeAt(pos) > 32 /* space */)
+ pos++;
+ args.push(text.substring(start, pos));
+ }
+ }
+ parseStrings(args);
+ }
+ }
+ ts.parseCommandLine = parseCommandLine;
+ /**
+ * Read tsconfig.json file
+ * @param fileName The path to the config file
+ */
+ function readConfigFile(fileName, readFile) {
+ var text = "";
+ try {
+ text = readFile(fileName);
+ }
+ catch (e) {
+ return { error: ts.createCompilerDiagnostic(ts.Diagnostics.Cannot_read_file_0_Colon_1, fileName, e.message) };
+ }
+ return parseConfigFileTextToJson(fileName, text);
+ }
+ ts.readConfigFile = readConfigFile;
+ /**
+ * Parse the text of the tsconfig.json file
+ * @param fileName The path to the config file
+ * @param jsonText The text of the config file
+ */
+ function parseConfigFileTextToJson(fileName, jsonText) {
+ try {
+ return { config: /\S/.test(jsonText) ? JSON.parse(jsonText) : {} };
+ }
+ catch (e) {
+ return { error: ts.createCompilerDiagnostic(ts.Diagnostics.Failed_to_parse_file_0_Colon_1, fileName, e.message) };
+ }
+ }
+ ts.parseConfigFileTextToJson = parseConfigFileTextToJson;
+ /**
+ * Parse the contents of a config file (tsconfig.json).
+ * @param json The contents of the config file to parse
+ * @param basePath A root directory to resolve relative path entries in the config
+ * file to. e.g. outDir
+ */
+ function parseJsonConfigFileContent(json, host, basePath) {
+ var errors = [];
+ return {
+ options: getCompilerOptions(),
+ fileNames: getFileNames(),
+ errors: errors
+ };
+ function getCompilerOptions() {
+ var options = {};
+ var optionNameMap = {};
+ ts.forEach(ts.optionDeclarations, function (option) {
+ optionNameMap[option.name] = option;
+ });
+ var jsonOptions = json["compilerOptions"];
+ if (jsonOptions) {
+ for (var id in jsonOptions) {
+ if (ts.hasProperty(optionNameMap, id)) {
+ var opt = optionNameMap[id];
+ var optType = opt.type;
+ var value = jsonOptions[id];
+ var expectedType = typeof optType === "string" ? optType : "string";
+ if (typeof value === expectedType) {
+ if (typeof optType !== "string") {
+ var key = value.toLowerCase();
+ if (ts.hasProperty(optType, key)) {
+ value = optType[key];
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(opt.error));
+ value = 0;
+ }
+ }
+ if (opt.isFilePath) {
+ value = ts.normalizePath(ts.combinePaths(basePath, value));
+ if (value === "") {
+ value = ".";
+ }
+ }
+ options[opt.name] = value;
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, id, expectedType));
+ }
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Unknown_compiler_option_0, id));
+ }
+ }
+ }
+ return options;
+ }
+ function getFileNames() {
+ var fileNames = [];
+ if (ts.hasProperty(json, "files")) {
+ if (json["files"] instanceof Array) {
+ fileNames = ts.map(json["files"], function (s) { return ts.combinePaths(basePath, s); });
+ }
+ else {
+ errors.push(ts.createCompilerDiagnostic(ts.Diagnostics.Compiler_option_0_requires_a_value_of_type_1, "files", "Array"));
+ }
+ }
+ else {
+ var exclude = json["exclude"] instanceof Array ? ts.map(json["exclude"], ts.normalizeSlashes) : undefined;
+ var sysFiles = host.readDirectory(basePath, ".ts", exclude).concat(host.readDirectory(basePath, ".tsx", exclude));
+ for (var i = 0; i < sysFiles.length; i++) {
+ var name_28 = sysFiles[i];
+ if (ts.fileExtensionIs(name_28, ".d.ts")) {
+ var baseName = name_28.substr(0, name_28.length - ".d.ts".length);
+ if (!ts.contains(sysFiles, baseName + ".tsx") && !ts.contains(sysFiles, baseName + ".ts")) {
+ fileNames.push(name_28);
+ }
+ }
+ else if (ts.fileExtensionIs(name_28, ".ts")) {
+ if (!ts.contains(sysFiles, name_28 + "x")) {
+ fileNames.push(name_28);
+ }
+ }
+ else {
+ fileNames.push(name_28);
+ }
+ }
+ }
+ return fileNames;
+ }
+ }
+ ts.parseJsonConfigFileContent = parseJsonConfigFileContent;
+})(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+ var OutliningElementsCollector;
+ (function (OutliningElementsCollector) {
+ function collectElements(sourceFile) {
+ var elements = [];
+ var collapseText = "...";
+ function addOutliningSpan(hintSpanNode, startElement, endElement, autoCollapse) {
+ if (hintSpanNode && startElement && endElement) {
+ var span = {
+ textSpan: ts.createTextSpanFromBounds(startElement.pos, endElement.end),
+ hintSpan: ts.createTextSpanFromBounds(hintSpanNode.getStart(), hintSpanNode.end),
+ bannerText: collapseText,
+ autoCollapse: autoCollapse
+ };
+ elements.push(span);
+ }
+ }
+ function addOutliningSpanComments(commentSpan, autoCollapse) {
+ if (commentSpan) {
+ var span = {
+ textSpan: ts.createTextSpanFromBounds(commentSpan.pos, commentSpan.end),
+ hintSpan: ts.createTextSpanFromBounds(commentSpan.pos, commentSpan.end),
+ bannerText: collapseText,
+ autoCollapse: autoCollapse
+ };
+ elements.push(span);
+ }
+ }
+ function addOutliningForLeadingCommentsForNode(n) {
+ var comments = ts.getLeadingCommentRangesOfNode(n, sourceFile);
+ if (comments) {
+ var firstSingleLineCommentStart = -1;
+ var lastSingleLineCommentEnd = -1;
+ var isFirstSingleLineComment = true;
+ var singleLineCommentCount = 0;
+ for (var _i = 0; _i < comments.length; _i++) {
+ var currentComment = comments[_i];
+ // For single line comments, combine consecutive ones (2 or more) into
+ // a single span from the start of the first till the end of the last
+ if (currentComment.kind === 2 /* SingleLineCommentTrivia */) {
+ if (isFirstSingleLineComment) {
+ firstSingleLineCommentStart = currentComment.pos;
+ }
+ isFirstSingleLineComment = false;
+ lastSingleLineCommentEnd = currentComment.end;
+ singleLineCommentCount++;
+ }
+ else if (currentComment.kind === 3 /* MultiLineCommentTrivia */) {
+ combineAndAddMultipleSingleLineComments(singleLineCommentCount, firstSingleLineCommentStart, lastSingleLineCommentEnd);
+ addOutliningSpanComments(currentComment, /*autoCollapse*/ false);
+ singleLineCommentCount = 0;
+ lastSingleLineCommentEnd = -1;
+ isFirstSingleLineComment = true;
+ }
+ }
+ combineAndAddMultipleSingleLineComments(singleLineCommentCount, firstSingleLineCommentStart, lastSingleLineCommentEnd);
+ }
+ }
+ function combineAndAddMultipleSingleLineComments(count, start, end) {
+ // Only outline spans of two or more consecutive single line comments
+ if (count > 1) {
+ var multipleSingleLineComments = {
+ pos: start,
+ end: end,
+ kind: 2 /* SingleLineCommentTrivia */
+ };
+ addOutliningSpanComments(multipleSingleLineComments, /*autoCollapse*/ false);
+ }
+ }
+ function autoCollapse(node) {
+ return ts.isFunctionBlock(node) && node.parent.kind !== 174 /* ArrowFunction */;
+ }
+ var depth = 0;
+ var maxDepth = 20;
+ function walk(n) {
+ if (depth > maxDepth) {
+ return;
+ }
+ if (ts.isDeclaration(n)) {
+ addOutliningForLeadingCommentsForNode(n);
+ }
+ switch (n.kind) {
+ case 192 /* Block */:
+ if (!ts.isFunctionBlock(n)) {
+ var parent_7 = n.parent;
+ var openBrace = ts.findChildOfKind(n, 15 /* OpenBraceToken */, sourceFile);
+ var closeBrace = ts.findChildOfKind(n, 16 /* CloseBraceToken */, sourceFile);
+ // Check if the block is standalone, or 'attached' to some parent statement.
+ // If the latter, we want to collaps the block, but consider its hint span
+ // to be the entire span of the parent.
+ if (parent_7.kind === 197 /* DoStatement */ ||
+ parent_7.kind === 200 /* ForInStatement */ ||
+ parent_7.kind === 201 /* ForOfStatement */ ||
+ parent_7.kind === 199 /* ForStatement */ ||
+ parent_7.kind === 196 /* IfStatement */ ||
+ parent_7.kind === 198 /* WhileStatement */ ||
+ parent_7.kind === 205 /* WithStatement */ ||
+ parent_7.kind === 244 /* CatchClause */) {
+ addOutliningSpan(parent_7, openBrace, closeBrace, autoCollapse(n));
+ break;
+ }
+ if (parent_7.kind === 209 /* TryStatement */) {
+ // Could be the try-block, or the finally-block.
+ var tryStatement = parent_7;
+ if (tryStatement.tryBlock === n) {
+ addOutliningSpan(parent_7, openBrace, closeBrace, autoCollapse(n));
+ break;
+ }
+ else if (tryStatement.finallyBlock === n) {
+ var finallyKeyword = ts.findChildOfKind(tryStatement, 85 /* FinallyKeyword */, sourceFile);
+ if (finallyKeyword) {
+ addOutliningSpan(finallyKeyword, openBrace, closeBrace, autoCollapse(n));
+ break;
+ }
+ }
+ }
+ // Block was a standalone block. In this case we want to only collapse
+ // the span of the block, independent of any parent span.
+ var span = ts.createTextSpanFromBounds(n.getStart(), n.end);
+ elements.push({
+ textSpan: span,
+ hintSpan: span,
+ bannerText: collapseText,
+ autoCollapse: autoCollapse(n)
+ });
+ break;
+ }
+ // Fallthrough.
+ case 219 /* ModuleBlock */: {
+ var openBrace = ts.findChildOfKind(n, 15 /* OpenBraceToken */, sourceFile);
+ var closeBrace = ts.findChildOfKind(n, 16 /* CloseBraceToken */, sourceFile);
+ addOutliningSpan(n.parent, openBrace, closeBrace, autoCollapse(n));
+ break;
+ }
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 165 /* ObjectLiteralExpression */:
+ case 220 /* CaseBlock */: {
+ var openBrace = ts.findChildOfKind(n, 15 /* OpenBraceToken */, sourceFile);
+ var closeBrace = ts.findChildOfKind(n, 16 /* CloseBraceToken */, sourceFile);
+ addOutliningSpan(n, openBrace, closeBrace, autoCollapse(n));
+ break;
+ }
+ case 164 /* ArrayLiteralExpression */:
+ var openBracket = ts.findChildOfKind(n, 19 /* OpenBracketToken */, sourceFile);
+ var closeBracket = ts.findChildOfKind(n, 20 /* CloseBracketToken */, sourceFile);
+ addOutliningSpan(n, openBracket, closeBracket, autoCollapse(n));
+ break;
+ }
+ depth++;
+ ts.forEachChild(n, walk);
+ depth--;
+ }
+ walk(sourceFile);
+ return elements;
+ }
+ OutliningElementsCollector.collectElements = collectElements;
+ })(OutliningElementsCollector = ts.OutliningElementsCollector || (ts.OutliningElementsCollector = {}));
+})(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+ var NavigateTo;
+ (function (NavigateTo) {
+ function getNavigateToItems(program, cancellationToken, searchValue, maxResultCount) {
+ var patternMatcher = ts.createPatternMatcher(searchValue);
+ var rawItems = [];
+ // Search the declarations in all files and output matched NavigateToItem into array of NavigateToItem[]
+ ts.forEach(program.getSourceFiles(), function (sourceFile) {
+ cancellationToken.throwIfCancellationRequested();
+ var nameToDeclarations = sourceFile.getNamedDeclarations();
+ for (var name_29 in nameToDeclarations) {
+ var declarations = ts.getProperty(nameToDeclarations, name_29);
+ if (declarations) {
+ // First do a quick check to see if the name of the declaration matches the
+ // last portion of the (possibly) dotted name they're searching for.
+ var matches = patternMatcher.getMatchesForLastSegmentOfPattern(name_29);
+ if (!matches) {
+ continue;
+ }
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ // It was a match! If the pattern has dots in it, then also see if the
+ // declaration container matches as well.
+ if (patternMatcher.patternContainsDots) {
+ var containers = getContainers(declaration);
+ if (!containers) {
+ return undefined;
+ }
+ matches = patternMatcher.getMatches(containers, name_29);
+ if (!matches) {
+ continue;
+ }
+ }
+ var fileName = sourceFile.fileName;
+ var matchKind = bestMatchKind(matches);
+ rawItems.push({ name: name_29, fileName: fileName, matchKind: matchKind, isCaseSensitive: allMatchesAreCaseSensitive(matches), declaration: declaration });
+ }
+ }
+ }
+ });
+ rawItems.sort(compareNavigateToItems);
+ if (maxResultCount !== undefined) {
+ rawItems = rawItems.slice(0, maxResultCount);
+ }
+ var items = ts.map(rawItems, createNavigateToItem);
+ return items;
+ function allMatchesAreCaseSensitive(matches) {
+ ts.Debug.assert(matches.length > 0);
+ // This is a case sensitive match, only if all the submatches were case sensitive.
+ for (var _i = 0; _i < matches.length; _i++) {
+ var match = matches[_i];
+ if (!match.isCaseSensitive) {
+ return false;
+ }
+ }
+ return true;
+ }
+ function getTextOfIdentifierOrLiteral(node) {
+ if (node) {
+ if (node.kind === 69 /* Identifier */ ||
+ node.kind === 9 /* StringLiteral */ ||
+ node.kind === 8 /* NumericLiteral */) {
+ return node.text;
+ }
+ }
+ return undefined;
+ }
+ function tryAddSingleDeclarationName(declaration, containers) {
+ if (declaration && declaration.name) {
+ var text = getTextOfIdentifierOrLiteral(declaration.name);
+ if (text !== undefined) {
+ containers.unshift(text);
+ }
+ else if (declaration.name.kind === 136 /* ComputedPropertyName */) {
+ return tryAddComputedPropertyName(declaration.name.expression, containers, /*includeLastPortion:*/ true);
+ }
+ else {
+ // Don't know how to add this.
+ return false;
+ }
+ }
+ return true;
+ }
+ // Only added the names of computed properties if they're simple dotted expressions, like:
+ //
+ // [X.Y.Z]() { }
+ function tryAddComputedPropertyName(expression, containers, includeLastPortion) {
+ var text = getTextOfIdentifierOrLiteral(expression);
+ if (text !== undefined) {
+ if (includeLastPortion) {
+ containers.unshift(text);
+ }
+ return true;
+ }
+ if (expression.kind === 166 /* PropertyAccessExpression */) {
+ var propertyAccess = expression;
+ if (includeLastPortion) {
+ containers.unshift(propertyAccess.name.text);
+ }
+ return tryAddComputedPropertyName(propertyAccess.expression, containers, /*includeLastPortion:*/ true);
+ }
+ return false;
+ }
+ function getContainers(declaration) {
+ var containers = [];
+ // First, if we started with a computed property name, then add all but the last
+ // portion into the container array.
+ if (declaration.name.kind === 136 /* ComputedPropertyName */) {
+ if (!tryAddComputedPropertyName(declaration.name.expression, containers, /*includeLastPortion:*/ false)) {
+ return undefined;
+ }
+ }
+ // Now, walk up our containers, adding all their names to the container array.
+ declaration = ts.getContainerNode(declaration);
+ while (declaration) {
+ if (!tryAddSingleDeclarationName(declaration, containers)) {
+ return undefined;
+ }
+ declaration = ts.getContainerNode(declaration);
+ }
+ return containers;
+ }
+ function bestMatchKind(matches) {
+ ts.Debug.assert(matches.length > 0);
+ var bestMatchKind = ts.PatternMatchKind.camelCase;
+ for (var _i = 0; _i < matches.length; _i++) {
+ var match = matches[_i];
+ var kind = match.kind;
+ if (kind < bestMatchKind) {
+ bestMatchKind = kind;
+ }
+ }
+ return bestMatchKind;
+ }
+ // This means "compare in a case insensitive manner."
+ var baseSensitivity = { sensitivity: "base" };
+ function compareNavigateToItems(i1, i2) {
+ // TODO(cyrusn): get the gamut of comparisons that VS already uses here.
+ // Right now we just sort by kind first, and then by name of the item.
+ // We first sort case insensitively. So "Aaa" will come before "bar".
+ // Then we sort case sensitively, so "aaa" will come before "Aaa".
+ return i1.matchKind - i2.matchKind ||
+ i1.name.localeCompare(i2.name, undefined, baseSensitivity) ||
+ i1.name.localeCompare(i2.name);
+ }
+ function createNavigateToItem(rawItem) {
+ var declaration = rawItem.declaration;
+ var container = ts.getContainerNode(declaration);
+ return {
+ name: rawItem.name,
+ kind: ts.getNodeKind(declaration),
+ kindModifiers: ts.getNodeModifiers(declaration),
+ matchKind: ts.PatternMatchKind[rawItem.matchKind],
+ isCaseSensitive: rawItem.isCaseSensitive,
+ fileName: rawItem.fileName,
+ textSpan: ts.createTextSpanFromBounds(declaration.getStart(), declaration.getEnd()),
+ // TODO(jfreeman): What should be the containerName when the container has a computed name?
+ containerName: container && container.name ? container.name.text : "",
+ containerKind: container && container.name ? ts.getNodeKind(container) : ""
+ };
+ }
+ }
+ NavigateTo.getNavigateToItems = getNavigateToItems;
+ })(NavigateTo = ts.NavigateTo || (ts.NavigateTo = {}));
+})(ts || (ts = {}));
+/// <reference path='services.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var NavigationBar;
+ (function (NavigationBar) {
+ function getNavigationBarItems(sourceFile) {
+ // If the source file has any child items, then it included in the tree
+ // and takes lexical ownership of all other top-level items.
+ var hasGlobalNode = false;
+ return getItemsWorker(getTopLevelNodes(sourceFile), createTopLevelItem);
+ function getIndent(node) {
+ // If we have a global node in the tree,
+ // then it adds an extra layer of depth to all subnodes.
+ var indent = hasGlobalNode ? 1 : 0;
+ var current = node.parent;
+ while (current) {
+ switch (current.kind) {
+ case 218 /* ModuleDeclaration */:
+ // If we have a module declared as A.B.C, it is more "intuitive"
+ // to say it only has a single layer of depth
+ do {
+ current = current.parent;
+ } while (current.kind === 218 /* ModuleDeclaration */);
+ // fall through
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ indent++;
+ }
+ current = current.parent;
+ }
+ return indent;
+ }
+ function getChildNodes(nodes) {
+ var childNodes = [];
+ function visit(node) {
+ switch (node.kind) {
+ case 193 /* VariableStatement */:
+ ts.forEach(node.declarationList.declarations, visit);
+ break;
+ case 161 /* ObjectBindingPattern */:
+ case 162 /* ArrayBindingPattern */:
+ ts.forEach(node.elements, visit);
+ break;
+ case 228 /* ExportDeclaration */:
+ // Handle named exports case e.g.:
+ // export {a, b as B} from "mod";
+ if (node.exportClause) {
+ ts.forEach(node.exportClause.elements, visit);
+ }
+ break;
+ case 222 /* ImportDeclaration */:
+ var importClause = node.importClause;
+ if (importClause) {
+ // Handle default import case e.g.:
+ // import d from "mod";
+ if (importClause.name) {
+ childNodes.push(importClause);
+ }
+ // Handle named bindings in imports e.g.:
+ // import * as NS from "mod";
+ // import {a, b as B} from "mod";
+ if (importClause.namedBindings) {
+ if (importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ childNodes.push(importClause.namedBindings);
+ }
+ else {
+ ts.forEach(importClause.namedBindings.elements, visit);
+ }
+ }
+ }
+ break;
+ case 163 /* BindingElement */:
+ case 211 /* VariableDeclaration */:
+ if (ts.isBindingPattern(node.name)) {
+ visit(node.name);
+ break;
+ }
+ // Fall through
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 226 /* ImportSpecifier */:
+ case 230 /* ExportSpecifier */:
+ childNodes.push(node);
+ break;
+ }
+ }
+ //for (let i = 0, n = nodes.length; i < n; i++) {
+ // let node = nodes[i];
+ // if (node.kind === SyntaxKind.ClassDeclaration ||
+ // node.kind === SyntaxKind.EnumDeclaration ||
+ // node.kind === SyntaxKind.InterfaceDeclaration ||
+ // node.kind === SyntaxKind.ModuleDeclaration ||
+ // node.kind === SyntaxKind.FunctionDeclaration) {
+ // childNodes.push(node);
+ // }
+ // else if (node.kind === SyntaxKind.VariableStatement) {
+ // childNodes.push.apply(childNodes, (<VariableStatement>node).declarations);
+ // }
+ //}
+ ts.forEach(nodes, visit);
+ return sortNodes(childNodes);
+ }
+ function getTopLevelNodes(node) {
+ var topLevelNodes = [];
+ topLevelNodes.push(node);
+ addTopLevelNodes(node.statements, topLevelNodes);
+ return topLevelNodes;
+ }
+ function sortNodes(nodes) {
+ return nodes.slice(0).sort(function (n1, n2) {
+ if (n1.name && n2.name) {
+ return ts.getPropertyNameForPropertyNameNode(n1.name).localeCompare(ts.getPropertyNameForPropertyNameNode(n2.name));
+ }
+ else if (n1.name) {
+ return 1;
+ }
+ else if (n2.name) {
+ return -1;
+ }
+ else {
+ return n1.kind - n2.kind;
+ }
+ });
+ }
+ function addTopLevelNodes(nodes, topLevelNodes) {
+ nodes = sortNodes(nodes);
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var node = nodes[_i];
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ topLevelNodes.push(node);
+ break;
+ case 218 /* ModuleDeclaration */:
+ var moduleDeclaration = node;
+ topLevelNodes.push(node);
+ addTopLevelNodes(getInnermostModule(moduleDeclaration).body.statements, topLevelNodes);
+ break;
+ case 213 /* FunctionDeclaration */:
+ var functionDeclaration = node;
+ if (isTopLevelFunctionDeclaration(functionDeclaration)) {
+ topLevelNodes.push(node);
+ addTopLevelNodes(functionDeclaration.body.statements, topLevelNodes);
+ }
+ break;
+ }
+ }
+ }
+ function isTopLevelFunctionDeclaration(functionDeclaration) {
+ if (functionDeclaration.kind === 213 /* FunctionDeclaration */) {
+ // A function declaration is 'top level' if it contains any function declarations
+ // within it.
+ if (functionDeclaration.body && functionDeclaration.body.kind === 192 /* Block */) {
+ // Proper function declarations can only have identifier names
+ if (ts.forEach(functionDeclaration.body.statements, function (s) { return s.kind === 213 /* FunctionDeclaration */ && !isEmpty(s.name.text); })) {
+ return true;
+ }
+ // Or if it is not parented by another function. i.e all functions
+ // at module scope are 'top level'.
+ if (!ts.isFunctionBlock(functionDeclaration.parent)) {
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ function getItemsWorker(nodes, createItem) {
+ var items = [];
+ var keyToItem = {};
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var child = nodes[_i];
+ var item = createItem(child);
+ if (item !== undefined) {
+ if (item.text.length > 0) {
+ var key = item.text + "-" + item.kind + "-" + item.indent;
+ var itemWithSameName = keyToItem[key];
+ if (itemWithSameName) {
+ // We had an item with the same name. Merge these items together.
+ merge(itemWithSameName, item);
+ }
+ else {
+ keyToItem[key] = item;
+ items.push(item);
+ }
+ }
+ }
+ }
+ return items;
+ }
+ function merge(target, source) {
+ // First, add any spans in the source to the target.
+ ts.addRange(target.spans, source.spans);
+ if (source.childItems) {
+ if (!target.childItems) {
+ target.childItems = [];
+ }
+ // Next, recursively merge or add any children in the source as appropriate.
+ outer: for (var _i = 0, _a = source.childItems; _i < _a.length; _i++) {
+ var sourceChild = _a[_i];
+ for (var _b = 0, _c = target.childItems; _b < _c.length; _b++) {
+ var targetChild = _c[_b];
+ if (targetChild.text === sourceChild.text && targetChild.kind === sourceChild.kind) {
+ // Found a match. merge them.
+ merge(targetChild, sourceChild);
+ continue outer;
+ }
+ }
+ // Didn't find a match, just add this child to the list.
+ target.childItems.push(sourceChild);
+ }
+ }
+ }
+ function createChildItem(node) {
+ switch (node.kind) {
+ case 138 /* Parameter */:
+ if (ts.isBindingPattern(node.name)) {
+ break;
+ }
+ if ((node.flags & 2035 /* Modifier */) === 0) {
+ return undefined;
+ }
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberVariableElement);
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberFunctionElement);
+ case 145 /* GetAccessor */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberGetAccessorElement);
+ case 146 /* SetAccessor */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberSetAccessorElement);
+ case 149 /* IndexSignature */:
+ return createItem(node, "[]", ts.ScriptElementKind.indexSignatureElement);
+ case 247 /* EnumMember */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberVariableElement);
+ case 147 /* CallSignature */:
+ return createItem(node, "()", ts.ScriptElementKind.callSignatureElement);
+ case 148 /* ConstructSignature */:
+ return createItem(node, "new()", ts.ScriptElementKind.constructSignatureElement);
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.memberVariableElement);
+ case 213 /* FunctionDeclaration */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.functionElement);
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ var variableDeclarationNode;
+ var name_30;
+ if (node.kind === 163 /* BindingElement */) {
+ name_30 = node.name;
+ variableDeclarationNode = node;
+ // binding elements are added only for variable declarations
+ // bubble up to the containing variable declaration
+ while (variableDeclarationNode && variableDeclarationNode.kind !== 211 /* VariableDeclaration */) {
+ variableDeclarationNode = variableDeclarationNode.parent;
+ }
+ ts.Debug.assert(variableDeclarationNode !== undefined);
+ }
+ else {
+ ts.Debug.assert(!ts.isBindingPattern(node.name));
+ variableDeclarationNode = node;
+ name_30 = node.name;
+ }
+ if (ts.isConst(variableDeclarationNode)) {
+ return createItem(node, getTextOfNode(name_30), ts.ScriptElementKind.constElement);
+ }
+ else if (ts.isLet(variableDeclarationNode)) {
+ return createItem(node, getTextOfNode(name_30), ts.ScriptElementKind.letElement);
+ }
+ else {
+ return createItem(node, getTextOfNode(name_30), ts.ScriptElementKind.variableElement);
+ }
+ case 144 /* Constructor */:
+ return createItem(node, "constructor", ts.ScriptElementKind.constructorImplementationElement);
+ case 230 /* ExportSpecifier */:
+ case 226 /* ImportSpecifier */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 223 /* ImportClause */:
+ case 224 /* NamespaceImport */:
+ return createItem(node, getTextOfNode(node.name), ts.ScriptElementKind.alias);
+ }
+ return undefined;
+ function createItem(node, name, scriptElementKind) {
+ return getNavigationBarItem(name, scriptElementKind, ts.getNodeModifiers(node), [getNodeSpan(node)]);
+ }
+ }
+ function isEmpty(text) {
+ return !text || text.trim() === "";
+ }
+ function getNavigationBarItem(text, kind, kindModifiers, spans, childItems, indent) {
+ if (childItems === void 0) { childItems = []; }
+ if (indent === void 0) { indent = 0; }
+ if (isEmpty(text)) {
+ return undefined;
+ }
+ return {
+ text: text,
+ kind: kind,
+ kindModifiers: kindModifiers,
+ spans: spans,
+ childItems: childItems,
+ indent: indent,
+ bolded: false,
+ grayed: false
+ };
+ }
+ function createTopLevelItem(node) {
+ switch (node.kind) {
+ case 248 /* SourceFile */:
+ return createSourceFileItem(node);
+ case 214 /* ClassDeclaration */:
+ return createClassItem(node);
+ case 217 /* EnumDeclaration */:
+ return createEnumItem(node);
+ case 215 /* InterfaceDeclaration */:
+ return createIterfaceItem(node);
+ case 218 /* ModuleDeclaration */:
+ return createModuleItem(node);
+ case 213 /* FunctionDeclaration */:
+ return createFunctionItem(node);
+ }
+ return undefined;
+ function getModuleName(moduleDeclaration) {
+ // We want to maintain quotation marks.
+ if (moduleDeclaration.name.kind === 9 /* StringLiteral */) {
+ return getTextOfNode(moduleDeclaration.name);
+ }
+ // Otherwise, we need to aggregate each identifier to build up the qualified name.
+ var result = [];
+ result.push(moduleDeclaration.name.text);
+ while (moduleDeclaration.body && moduleDeclaration.body.kind === 218 /* ModuleDeclaration */) {
+ moduleDeclaration = moduleDeclaration.body;
+ result.push(moduleDeclaration.name.text);
+ }
+ return result.join(".");
+ }
+ function createModuleItem(node) {
+ var moduleName = getModuleName(node);
+ var childItems = getItemsWorker(getChildNodes(getInnermostModule(node).body.statements), createChildItem);
+ return getNavigationBarItem(moduleName, ts.ScriptElementKind.moduleElement, ts.getNodeModifiers(node), [getNodeSpan(node)], childItems, getIndent(node));
+ }
+ function createFunctionItem(node) {
+ if (node.body && node.body.kind === 192 /* Block */) {
+ var childItems = getItemsWorker(sortNodes(node.body.statements), createChildItem);
+ return getNavigationBarItem(!node.name ? "default" : node.name.text, ts.ScriptElementKind.functionElement, ts.getNodeModifiers(node), [getNodeSpan(node)], childItems, getIndent(node));
+ }
+ return undefined;
+ }
+ function createSourceFileItem(node) {
+ var childItems = getItemsWorker(getChildNodes(node.statements), createChildItem);
+ if (childItems === undefined || childItems.length === 0) {
+ return undefined;
+ }
+ hasGlobalNode = true;
+ var rootName = ts.isExternalModule(node)
+ ? "\"" + ts.escapeString(ts.getBaseFileName(ts.removeFileExtension(ts.normalizePath(node.fileName)))) + "\""
+ : "<global>";
+ return getNavigationBarItem(rootName, ts.ScriptElementKind.moduleElement, ts.ScriptElementKindModifier.none, [getNodeSpan(node)], childItems);
+ }
+ function createClassItem(node) {
+ var childItems;
+ if (node.members) {
+ var constructor = ts.forEach(node.members, function (member) {
+ return member.kind === 144 /* Constructor */ && member;
+ });
+ // Add the constructor parameters in as children of the class (for property parameters).
+ // Note that *all non-binding pattern named* parameters will be added to the nodes array, but parameters that
+ // are not properties will be filtered out later by createChildItem.
+ var nodes = removeDynamicallyNamedProperties(node);
+ if (constructor) {
+ ts.addRange(nodes, ts.filter(constructor.parameters, function (p) { return !ts.isBindingPattern(p.name); }));
+ }
+ childItems = getItemsWorker(sortNodes(nodes), createChildItem);
+ }
+ var nodeName = !node.name ? "default" : node.name.text;
+ return getNavigationBarItem(nodeName, ts.ScriptElementKind.classElement, ts.getNodeModifiers(node), [getNodeSpan(node)], childItems, getIndent(node));
+ }
+ function createEnumItem(node) {
+ var childItems = getItemsWorker(sortNodes(removeComputedProperties(node)), createChildItem);
+ return getNavigationBarItem(node.name.text, ts.ScriptElementKind.enumElement, ts.getNodeModifiers(node), [getNodeSpan(node)], childItems, getIndent(node));
+ }
+ function createIterfaceItem(node) {
+ var childItems = getItemsWorker(sortNodes(removeDynamicallyNamedProperties(node)), createChildItem);
+ return getNavigationBarItem(node.name.text, ts.ScriptElementKind.interfaceElement, ts.getNodeModifiers(node), [getNodeSpan(node)], childItems, getIndent(node));
+ }
+ }
+ function removeComputedProperties(node) {
+ return ts.filter(node.members, function (member) { return member.name === undefined || member.name.kind !== 136 /* ComputedPropertyName */; });
+ }
+ /**
+ * Like removeComputedProperties, but retains the properties with well known symbol names
+ */
+ function removeDynamicallyNamedProperties(node) {
+ return ts.filter(node.members, function (member) { return !ts.hasDynamicName(member); });
+ }
+ function getInnermostModule(node) {
+ while (node.body.kind === 218 /* ModuleDeclaration */) {
+ node = node.body;
+ }
+ return node;
+ }
+ function getNodeSpan(node) {
+ return node.kind === 248 /* SourceFile */
+ ? ts.createTextSpanFromBounds(node.getFullStart(), node.getEnd())
+ : ts.createTextSpanFromBounds(node.getStart(), node.getEnd());
+ }
+ function getTextOfNode(node) {
+ return ts.getTextOfNodeFromSourceText(sourceFile.text, node);
+ }
+ }
+ NavigationBar.getNavigationBarItems = getNavigationBarItems;
+ })(NavigationBar = ts.NavigationBar || (ts.NavigationBar = {}));
+})(ts || (ts = {}));
+/* @internal */
+var ts;
+(function (ts) {
+ // Note(cyrusn): this enum is ordered from strongest match type to weakest match type.
+ (function (PatternMatchKind) {
+ PatternMatchKind[PatternMatchKind["exact"] = 0] = "exact";
+ PatternMatchKind[PatternMatchKind["prefix"] = 1] = "prefix";
+ PatternMatchKind[PatternMatchKind["substring"] = 2] = "substring";
+ PatternMatchKind[PatternMatchKind["camelCase"] = 3] = "camelCase";
+ })(ts.PatternMatchKind || (ts.PatternMatchKind = {}));
+ var PatternMatchKind = ts.PatternMatchKind;
+ function createPatternMatch(kind, punctuationStripped, isCaseSensitive, camelCaseWeight) {
+ return {
+ kind: kind,
+ punctuationStripped: punctuationStripped,
+ isCaseSensitive: isCaseSensitive,
+ camelCaseWeight: camelCaseWeight
+ };
+ }
+ function createPatternMatcher(pattern) {
+ // We'll often see the same candidate string many times when searching (For example, when
+ // we see the name of a module that is used everywhere, or the name of an overload). As
+ // such, we cache the information we compute about the candidate for the life of this
+ // pattern matcher so we don't have to compute it multiple times.
+ var stringToWordSpans = {};
+ pattern = pattern.trim();
+ var fullPatternSegment = createSegment(pattern);
+ var dotSeparatedSegments = pattern.split(".").map(function (p) { return createSegment(p.trim()); });
+ var invalidPattern = dotSeparatedSegments.length === 0 || ts.forEach(dotSeparatedSegments, segmentIsInvalid);
+ return {
+ getMatches: getMatches,
+ getMatchesForLastSegmentOfPattern: getMatchesForLastSegmentOfPattern,
+ patternContainsDots: dotSeparatedSegments.length > 1
+ };
+ // Quick checks so we can bail out when asked to match a candidate.
+ function skipMatch(candidate) {
+ return invalidPattern || !candidate;
+ }
+ function getMatchesForLastSegmentOfPattern(candidate) {
+ if (skipMatch(candidate)) {
+ return undefined;
+ }
+ return matchSegment(candidate, ts.lastOrUndefined(dotSeparatedSegments));
+ }
+ function getMatches(candidateContainers, candidate) {
+ if (skipMatch(candidate)) {
+ return undefined;
+ }
+ // First, check that the last part of the dot separated pattern matches the name of the
+ // candidate. If not, then there's no point in proceeding and doing the more
+ // expensive work.
+ var candidateMatch = matchSegment(candidate, ts.lastOrUndefined(dotSeparatedSegments));
+ if (!candidateMatch) {
+ return undefined;
+ }
+ candidateContainers = candidateContainers || [];
+ // -1 because the last part was checked against the name, and only the rest
+ // of the parts are checked against the container.
+ if (dotSeparatedSegments.length - 1 > candidateContainers.length) {
+ // There weren't enough container parts to match against the pattern parts.
+ // So this definitely doesn't match.
+ return undefined;
+ }
+ // So far so good. Now break up the container for the candidate and check if all
+ // the dotted parts match up correctly.
+ var totalMatch = candidateMatch;
+ for (var i = dotSeparatedSegments.length - 2, j = candidateContainers.length - 1; i >= 0; i--, j--) {
+ var segment = dotSeparatedSegments[i];
+ var containerName = candidateContainers[j];
+ var containerMatch = matchSegment(containerName, segment);
+ if (!containerMatch) {
+ // This container didn't match the pattern piece. So there's no match at all.
+ return undefined;
+ }
+ ts.addRange(totalMatch, containerMatch);
+ }
+ // Success, this symbol's full name matched against the dotted name the user was asking
+ // about.
+ return totalMatch;
+ }
+ function getWordSpans(word) {
+ if (!ts.hasProperty(stringToWordSpans, word)) {
+ stringToWordSpans[word] = breakIntoWordSpans(word);
+ }
+ return stringToWordSpans[word];
+ }
+ function matchTextChunk(candidate, chunk, punctuationStripped) {
+ var index = indexOfIgnoringCase(candidate, chunk.textLowerCase);
+ if (index === 0) {
+ if (chunk.text.length === candidate.length) {
+ // a) Check if the part matches the candidate entirely, in an case insensitive or
+ // sensitive manner. If it does, return that there was an exact match.
+ return createPatternMatch(PatternMatchKind.exact, punctuationStripped, /*isCaseSensitive:*/ candidate === chunk.text);
+ }
+ else {
+ // b) Check if the part is a prefix of the candidate, in a case insensitive or sensitive
+ // manner. If it does, return that there was a prefix match.
+ return createPatternMatch(PatternMatchKind.prefix, punctuationStripped, /*isCaseSensitive:*/ startsWith(candidate, chunk.text));
+ }
+ }
+ var isLowercase = chunk.isLowerCase;
+ if (isLowercase) {
+ if (index > 0) {
+ // c) If the part is entirely lowercase, then check if it is contained anywhere in the
+ // candidate in a case insensitive manner. If so, return that there was a substring
+ // match.
+ //
+ // Note: We only have a substring match if the lowercase part is prefix match of some
+ // word part. That way we don't match something like 'Class' when the user types 'a'.
+ // But we would match 'FooAttribute' (since 'Attribute' starts with 'a').
+ var wordSpans = getWordSpans(candidate);
+ for (var _i = 0; _i < wordSpans.length; _i++) {
+ var span = wordSpans[_i];
+ if (partStartsWith(candidate, span, chunk.text, /*ignoreCase:*/ true)) {
+ return createPatternMatch(PatternMatchKind.substring, punctuationStripped,
+ /*isCaseSensitive:*/ partStartsWith(candidate, span, chunk.text, /*ignoreCase:*/ false));
+ }
+ }
+ }
+ }
+ else {
+ // d) If the part was not entirely lowercase, then check if it is contained in the
+ // candidate in a case *sensitive* manner. If so, return that there was a substring
+ // match.
+ if (candidate.indexOf(chunk.text) > 0) {
+ return createPatternMatch(PatternMatchKind.substring, punctuationStripped, /*isCaseSensitive:*/ true);
+ }
+ }
+ if (!isLowercase) {
+ // e) If the part was not entirely lowercase, then attempt a camel cased match as well.
+ if (chunk.characterSpans.length > 0) {
+ var candidateParts = getWordSpans(candidate);
+ var camelCaseWeight = tryCamelCaseMatch(candidate, candidateParts, chunk, /*ignoreCase:*/ false);
+ if (camelCaseWeight !== undefined) {
+ return createPatternMatch(PatternMatchKind.camelCase, punctuationStripped, /*isCaseSensitive:*/ true, /*camelCaseWeight:*/ camelCaseWeight);
+ }
+ camelCaseWeight = tryCamelCaseMatch(candidate, candidateParts, chunk, /*ignoreCase:*/ true);
+ if (camelCaseWeight !== undefined) {
+ return createPatternMatch(PatternMatchKind.camelCase, punctuationStripped, /*isCaseSensitive:*/ false, /*camelCaseWeight:*/ camelCaseWeight);
+ }
+ }
+ }
+ if (isLowercase) {
+ // f) Is the pattern a substring of the candidate starting on one of the candidate's word boundaries?
+ // We could check every character boundary start of the candidate for the pattern. However, that's
+ // an m * n operation in the wost case. Instead, find the first instance of the pattern
+ // substring, and see if it starts on a capital letter. It seems unlikely that the user will try to
+ // filter the list based on a substring that starts on a capital letter and also with a lowercase one.
+ // (Pattern: fogbar, Candidate: quuxfogbarFogBar).
+ if (chunk.text.length < candidate.length) {
+ if (index > 0 && isUpperCaseLetter(candidate.charCodeAt(index))) {
+ return createPatternMatch(PatternMatchKind.substring, punctuationStripped, /*isCaseSensitive:*/ false);
+ }
+ }
+ }
+ return undefined;
+ }
+ function containsSpaceOrAsterisk(text) {
+ for (var i = 0; i < text.length; i++) {
+ var ch = text.charCodeAt(i);
+ if (ch === 32 /* space */ || ch === 42 /* asterisk */) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function matchSegment(candidate, segment) {
+ // First check if the segment matches as is. This is also useful if the segment contains
+ // characters we would normally strip when splitting into parts that we also may want to
+ // match in the candidate. For example if the segment is "@int" and the candidate is
+ // "@int", then that will show up as an exact match here.
+ //
+ // Note: if the segment contains a space or an asterisk then we must assume that it's a
+ // multi-word segment.
+ if (!containsSpaceOrAsterisk(segment.totalTextChunk.text)) {
+ var match = matchTextChunk(candidate, segment.totalTextChunk, /*punctuationStripped:*/ false);
+ if (match) {
+ return [match];
+ }
+ }
+ // The logic for pattern matching is now as follows:
+ //
+ // 1) Break the segment passed in into words. Breaking is rather simple and a
+ // good way to think about it that if gives you all the individual alphanumeric words
+ // of the pattern.
+ //
+ // 2) For each word try to match the word against the candidate value.
+ //
+ // 3) Matching is as follows:
+ //
+ // a) Check if the word matches the candidate entirely, in an case insensitive or
+ // sensitive manner. If it does, return that there was an exact match.
+ //
+ // b) Check if the word is a prefix of the candidate, in a case insensitive or
+ // sensitive manner. If it does, return that there was a prefix match.
+ //
+ // c) If the word is entirely lowercase, then check if it is contained anywhere in the
+ // candidate in a case insensitive manner. If so, return that there was a substring
+ // match.
+ //
+ // Note: We only have a substring match if the lowercase part is prefix match of
+ // some word part. That way we don't match something like 'Class' when the user
+ // types 'a'. But we would match 'FooAttribute' (since 'Attribute' starts with
+ // 'a').
+ //
+ // d) If the word was not entirely lowercase, then check if it is contained in the
+ // candidate in a case *sensitive* manner. If so, return that there was a substring
+ // match.
+ //
+ // e) If the word was not entirely lowercase, then attempt a camel cased match as
+ // well.
+ //
+ // f) The word is all lower case. Is it a case insensitive substring of the candidate starting
+ // on a part boundary of the candidate?
+ //
+ // Only if all words have some sort of match is the pattern considered matched.
+ var subWordTextChunks = segment.subWordTextChunks;
+ var matches = undefined;
+ for (var _i = 0; _i < subWordTextChunks.length; _i++) {
+ var subWordTextChunk = subWordTextChunks[_i];
+ // Try to match the candidate with this word
+ var result = matchTextChunk(candidate, subWordTextChunk, /*punctuationStripped:*/ true);
+ if (!result) {
+ return undefined;
+ }
+ matches = matches || [];
+ matches.push(result);
+ }
+ return matches;
+ }
+ function partStartsWith(candidate, candidateSpan, pattern, ignoreCase, patternSpan) {
+ var patternPartStart = patternSpan ? patternSpan.start : 0;
+ var patternPartLength = patternSpan ? patternSpan.length : pattern.length;
+ if (patternPartLength > candidateSpan.length) {
+ // Pattern part is longer than the candidate part. There can never be a match.
+ return false;
+ }
+ if (ignoreCase) {
+ for (var i = 0; i < patternPartLength; i++) {
+ var ch1 = pattern.charCodeAt(patternPartStart + i);
+ var ch2 = candidate.charCodeAt(candidateSpan.start + i);
+ if (toLowerCase(ch1) !== toLowerCase(ch2)) {
+ return false;
+ }
+ }
+ }
+ else {
+ for (var i = 0; i < patternPartLength; i++) {
+ var ch1 = pattern.charCodeAt(patternPartStart + i);
+ var ch2 = candidate.charCodeAt(candidateSpan.start + i);
+ if (ch1 !== ch2) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+ function tryCamelCaseMatch(candidate, candidateParts, chunk, ignoreCase) {
+ var chunkCharacterSpans = chunk.characterSpans;
+ // Note: we may have more pattern parts than candidate parts. This is because multiple
+ // pattern parts may match a candidate part. For example "SiUI" against "SimpleUI".
+ // We'll have 3 pattern parts Si/U/I against two candidate parts Simple/UI. However, U
+ // and I will both match in UI.
+ var currentCandidate = 0;
+ var currentChunkSpan = 0;
+ var firstMatch = undefined;
+ var contiguous = undefined;
+ while (true) {
+ // Let's consider our termination cases
+ if (currentChunkSpan === chunkCharacterSpans.length) {
+ // We did match! We shall assign a weight to this
+ var weight = 0;
+ // Was this contiguous?
+ if (contiguous) {
+ weight += 1;
+ }
+ // Did we start at the beginning of the candidate?
+ if (firstMatch === 0) {
+ weight += 2;
+ }
+ return weight;
+ }
+ else if (currentCandidate === candidateParts.length) {
+ // No match, since we still have more of the pattern to hit
+ return undefined;
+ }
+ var candidatePart = candidateParts[currentCandidate];
+ var gotOneMatchThisCandidate = false;
+ // Consider the case of matching SiUI against SimpleUIElement. The candidate parts
+ // will be Simple/UI/Element, and the pattern parts will be Si/U/I. We'll match 'Si'
+ // against 'Simple' first. Then we'll match 'U' against 'UI'. However, we want to
+ // still keep matching pattern parts against that candidate part.
+ for (; currentChunkSpan < chunkCharacterSpans.length; currentChunkSpan++) {
+ var chunkCharacterSpan = chunkCharacterSpans[currentChunkSpan];
+ if (gotOneMatchThisCandidate) {
+ // We've already gotten one pattern part match in this candidate. We will
+ // only continue trying to consumer pattern parts if the last part and this
+ // part are both upper case.
+ if (!isUpperCaseLetter(chunk.text.charCodeAt(chunkCharacterSpans[currentChunkSpan - 1].start)) ||
+ !isUpperCaseLetter(chunk.text.charCodeAt(chunkCharacterSpans[currentChunkSpan].start))) {
+ break;
+ }
+ }
+ if (!partStartsWith(candidate, candidatePart, chunk.text, ignoreCase, chunkCharacterSpan)) {
+ break;
+ }
+ gotOneMatchThisCandidate = true;
+ firstMatch = firstMatch === undefined ? currentCandidate : firstMatch;
+ // If we were contiguous, then keep that value. If we weren't, then keep that
+ // value. If we don't know, then set the value to 'true' as an initial match is
+ // obviously contiguous.
+ contiguous = contiguous === undefined ? true : contiguous;
+ candidatePart = ts.createTextSpan(candidatePart.start + chunkCharacterSpan.length, candidatePart.length - chunkCharacterSpan.length);
+ }
+ // Check if we matched anything at all. If we didn't, then we need to unset the
+ // contiguous bit if we currently had it set.
+ // If we haven't set the bit yet, then that means we haven't matched anything so
+ // far, and we don't want to change that.
+ if (!gotOneMatchThisCandidate && contiguous !== undefined) {
+ contiguous = false;
+ }
+ // Move onto the next candidate.
+ currentCandidate++;
+ }
+ }
+ }
+ ts.createPatternMatcher = createPatternMatcher;
+ // Helper function to compare two matches to determine which is better. Matches are first
+ // ordered by kind (so all prefix matches always beat all substring matches). Then, if the
+ // match is a camel case match, the relative weights of the match are used to determine
+ // which is better (with a greater weight being better). Then if the match is of the same
+ // type, then a case sensitive match is considered better than an insensitive one.
+ function patternMatchCompareTo(match1, match2) {
+ return compareType(match1, match2) ||
+ compareCamelCase(match1, match2) ||
+ compareCase(match1, match2) ||
+ comparePunctuation(match1, match2);
+ }
+ function comparePunctuation(result1, result2) {
+ // Consider a match to be better if it was successful without stripping punctuation
+ // versus a match that had to strip punctuation to succeed.
+ if (result1.punctuationStripped !== result2.punctuationStripped) {
+ return result1.punctuationStripped ? 1 : -1;
+ }
+ return 0;
+ }
+ function compareCase(result1, result2) {
+ if (result1.isCaseSensitive !== result2.isCaseSensitive) {
+ return result1.isCaseSensitive ? -1 : 1;
+ }
+ return 0;
+ }
+ function compareType(result1, result2) {
+ return result1.kind - result2.kind;
+ }
+ function compareCamelCase(result1, result2) {
+ if (result1.kind === PatternMatchKind.camelCase && result2.kind === PatternMatchKind.camelCase) {
+ // Swap the values here. If result1 has a higher weight, then we want it to come
+ // first.
+ return result2.camelCaseWeight - result1.camelCaseWeight;
+ }
+ return 0;
+ }
+ function createSegment(text) {
+ return {
+ totalTextChunk: createTextChunk(text),
+ subWordTextChunks: breakPatternIntoTextChunks(text)
+ };
+ }
+ // A segment is considered invalid if we couldn't find any words in it.
+ function segmentIsInvalid(segment) {
+ return segment.subWordTextChunks.length === 0;
+ }
+ function isUpperCaseLetter(ch) {
+ // Fast check for the ascii range.
+ if (ch >= 65 /* A */ && ch <= 90 /* Z */) {
+ return true;
+ }
+ if (ch < 127 /* maxAsciiCharacter */ || !ts.isUnicodeIdentifierStart(ch, 2 /* Latest */)) {
+ return false;
+ }
+ // TODO: find a way to determine this for any unicode characters in a
+ // non-allocating manner.
+ var str = String.fromCharCode(ch);
+ return str === str.toUpperCase();
+ }
+ function isLowerCaseLetter(ch) {
+ // Fast check for the ascii range.
+ if (ch >= 97 /* a */ && ch <= 122 /* z */) {
+ return true;
+ }
+ if (ch < 127 /* maxAsciiCharacter */ || !ts.isUnicodeIdentifierStart(ch, 2 /* Latest */)) {
+ return false;
+ }
+ // TODO: find a way to determine this for any unicode characters in a
+ // non-allocating manner.
+ var str = String.fromCharCode(ch);
+ return str === str.toLowerCase();
+ }
+ function containsUpperCaseLetter(string) {
+ for (var i = 0, n = string.length; i < n; i++) {
+ if (isUpperCaseLetter(string.charCodeAt(i))) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function startsWith(string, search) {
+ for (var i = 0, n = search.length; i < n; i++) {
+ if (string.charCodeAt(i) !== search.charCodeAt(i)) {
+ return false;
+ }
+ }
+ return true;
+ }
+ // Assumes 'value' is already lowercase.
+ function indexOfIgnoringCase(string, value) {
+ for (var i = 0, n = string.length - value.length; i <= n; i++) {
+ if (startsWithIgnoringCase(string, value, i)) {
+ return i;
+ }
+ }
+ return -1;
+ }
+ // Assumes 'value' is already lowercase.
+ function startsWithIgnoringCase(string, value, start) {
+ for (var i = 0, n = value.length; i < n; i++) {
+ var ch1 = toLowerCase(string.charCodeAt(i + start));
+ var ch2 = value.charCodeAt(i);
+ if (ch1 !== ch2) {
+ return false;
+ }
+ }
+ return true;
+ }
+ function toLowerCase(ch) {
+ // Fast convert for the ascii range.
+ if (ch >= 65 /* A */ && ch <= 90 /* Z */) {
+ return 97 /* a */ + (ch - 65 /* A */);
+ }
+ if (ch < 127 /* maxAsciiCharacter */) {
+ return ch;
+ }
+ // TODO: find a way to compute this for any unicode characters in a
+ // non-allocating manner.
+ return String.fromCharCode(ch).toLowerCase().charCodeAt(0);
+ }
+ function isDigit(ch) {
+ // TODO(cyrusn): Find a way to support this for unicode digits.
+ return ch >= 48 /* _0 */ && ch <= 57 /* _9 */;
+ }
+ function isWordChar(ch) {
+ return isUpperCaseLetter(ch) || isLowerCaseLetter(ch) || isDigit(ch) || ch === 95 /* _ */ || ch === 36 /* $ */;
+ }
+ function breakPatternIntoTextChunks(pattern) {
+ var result = [];
+ var wordStart = 0;
+ var wordLength = 0;
+ for (var i = 0; i < pattern.length; i++) {
+ var ch = pattern.charCodeAt(i);
+ if (isWordChar(ch)) {
+ if (wordLength++ === 0) {
+ wordStart = i;
+ }
+ }
+ else {
+ if (wordLength > 0) {
+ result.push(createTextChunk(pattern.substr(wordStart, wordLength)));
+ wordLength = 0;
+ }
+ }
+ }
+ if (wordLength > 0) {
+ result.push(createTextChunk(pattern.substr(wordStart, wordLength)));
+ }
+ return result;
+ }
+ function createTextChunk(text) {
+ var textLowerCase = text.toLowerCase();
+ return {
+ text: text,
+ textLowerCase: textLowerCase,
+ isLowerCase: text === textLowerCase,
+ characterSpans: breakIntoCharacterSpans(text)
+ };
+ }
+ /* @internal */ function breakIntoCharacterSpans(identifier) {
+ return breakIntoSpans(identifier, /*word:*/ false);
+ }
+ ts.breakIntoCharacterSpans = breakIntoCharacterSpans;
+ /* @internal */ function breakIntoWordSpans(identifier) {
+ return breakIntoSpans(identifier, /*word:*/ true);
+ }
+ ts.breakIntoWordSpans = breakIntoWordSpans;
+ function breakIntoSpans(identifier, word) {
+ var result = [];
+ var wordStart = 0;
+ for (var i = 1, n = identifier.length; i < n; i++) {
+ var lastIsDigit = isDigit(identifier.charCodeAt(i - 1));
+ var currentIsDigit = isDigit(identifier.charCodeAt(i));
+ var hasTransitionFromLowerToUpper = transitionFromLowerToUpper(identifier, word, i);
+ var hasTransitionFromUpperToLower = transitionFromUpperToLower(identifier, word, i, wordStart);
+ if (charIsPunctuation(identifier.charCodeAt(i - 1)) ||
+ charIsPunctuation(identifier.charCodeAt(i)) ||
+ lastIsDigit !== currentIsDigit ||
+ hasTransitionFromLowerToUpper ||
+ hasTransitionFromUpperToLower) {
+ if (!isAllPunctuation(identifier, wordStart, i)) {
+ result.push(ts.createTextSpan(wordStart, i - wordStart));
+ }
+ wordStart = i;
+ }
+ }
+ if (!isAllPunctuation(identifier, wordStart, identifier.length)) {
+ result.push(ts.createTextSpan(wordStart, identifier.length - wordStart));
+ }
+ return result;
+ }
+ function charIsPunctuation(ch) {
+ switch (ch) {
+ case 33 /* exclamation */:
+ case 34 /* doubleQuote */:
+ case 35 /* hash */:
+ case 37 /* percent */:
+ case 38 /* ampersand */:
+ case 39 /* singleQuote */:
+ case 40 /* openParen */:
+ case 41 /* closeParen */:
+ case 42 /* asterisk */:
+ case 44 /* comma */:
+ case 45 /* minus */:
+ case 46 /* dot */:
+ case 47 /* slash */:
+ case 58 /* colon */:
+ case 59 /* semicolon */:
+ case 63 /* question */:
+ case 64 /* at */:
+ case 91 /* openBracket */:
+ case 92 /* backslash */:
+ case 93 /* closeBracket */:
+ case 95 /* _ */:
+ case 123 /* openBrace */:
+ case 125 /* closeBrace */:
+ return true;
+ }
+ return false;
+ }
+ function isAllPunctuation(identifier, start, end) {
+ for (var i = start; i < end; i++) {
+ var ch = identifier.charCodeAt(i);
+ // We don't consider _ or $ as punctuation as there may be things with that name.
+ if (!charIsPunctuation(ch) || ch === 95 /* _ */ || ch === 36 /* $ */) {
+ return false;
+ }
+ }
+ return true;
+ }
+ function transitionFromUpperToLower(identifier, word, index, wordStart) {
+ if (word) {
+ // Cases this supports:
+ // 1) IDisposable -> I, Disposable
+ // 2) UIElement -> UI, Element
+ // 3) HTMLDocument -> HTML, Document
+ //
+ // etc.
+ if (index !== wordStart &&
+ index + 1 < identifier.length) {
+ var currentIsUpper = isUpperCaseLetter(identifier.charCodeAt(index));
+ var nextIsLower = isLowerCaseLetter(identifier.charCodeAt(index + 1));
+ if (currentIsUpper && nextIsLower) {
+ // We have a transition from an upper to a lower letter here. But we only
+ // want to break if all the letters that preceded are uppercase. i.e. if we
+ // have "Foo" we don't want to break that into "F, oo". But if we have
+ // "IFoo" or "UIFoo", then we want to break that into "I, Foo" and "UI,
+ // Foo". i.e. the last uppercase letter belongs to the lowercase letters
+ // that follows. Note: this will make the following not split properly:
+ // "HELLOthere". However, these sorts of names do not show up in .Net
+ // programs.
+ for (var i = wordStart; i < index; i++) {
+ if (!isUpperCaseLetter(identifier.charCodeAt(i))) {
+ return false;
+ }
+ }
+ return true;
+ }
+ }
+ }
+ return false;
+ }
+ function transitionFromLowerToUpper(identifier, word, index) {
+ var lastIsUpper = isUpperCaseLetter(identifier.charCodeAt(index - 1));
+ var currentIsUpper = isUpperCaseLetter(identifier.charCodeAt(index));
+ // See if the casing indicates we're starting a new word. Note: if we're breaking on
+ // words, then just seeing an upper case character isn't enough. Instead, it has to
+ // be uppercase and the previous character can't be uppercase.
+ //
+ // For example, breaking "AddMetadata" on words would make: Add Metadata
+ //
+ // on characters would be: A dd M etadata
+ //
+ // Break "AM" on words would be: AM
+ //
+ // on characters would be: A M
+ //
+ // We break the search string on characters. But we break the symbol name on words.
+ var transition = word
+ ? (currentIsUpper && !lastIsUpper)
+ : currentIsUpper;
+ return transition;
+ }
+})(ts || (ts = {}));
+///<reference path='services.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var SignatureHelp;
+ (function (SignatureHelp) {
+ // A partially written generic type expression is not guaranteed to have the correct syntax tree. the expression could be parsed as less than/greater than expression or a comma expression
+ // or some other combination depending on what the user has typed so far. For the purposes of signature help we need to consider any location after "<" as a possible generic type reference.
+ // To do this, the method will back parse the expression starting at the position required. it will try to parse the current expression as a generic type expression, if it did succeed it
+ // will return the generic identifier that started the expression (e.g. "foo" in "foo<any, |"). It is then up to the caller to ensure that this is a valid generic expression through
+ // looking up the type. The method will also keep track of the parameter index inside the expression.
+ //public static isInPartiallyWrittenTypeArgumentList(syntaxTree: TypeScript.SyntaxTree, position: number): any {
+ // let token = Syntax.findTokenOnLeft(syntaxTree.sourceUnit(), position, /*includeSkippedTokens*/ true);
+ // if (token && TypeScript.Syntax.hasAncestorOfKind(token, TypeScript.SyntaxKind.TypeParameterList)) {
+ // // We are in the wrong generic list. bail out
+ // return null;
+ // }
+ // let stack = 0;
+ // let argumentIndex = 0;
+ // whileLoop:
+ // while (token) {
+ // switch (token.kind()) {
+ // case TypeScript.SyntaxKind.LessThanToken:
+ // if (stack === 0) {
+ // // Found the beginning of the generic argument expression
+ // let lessThanToken = token;
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // if (!token || token.kind() !== TypeScript.SyntaxKind.IdentifierName) {
+ // break whileLoop;
+ // }
+ // // Found the name, return the data
+ // return {
+ // genericIdentifer: token,
+ // lessThanToken: lessThanToken,
+ // argumentIndex: argumentIndex
+ // };
+ // }
+ // else if (stack < 0) {
+ // // Seen one too many less than tokens, bail out
+ // break whileLoop;
+ // }
+ // else {
+ // stack--;
+ // }
+ // break;
+ // case TypeScript.SyntaxKind.GreaterThanGreaterThanGreaterThanToken:
+ // stack++;
+ // // Intentaion fall through
+ // case TypeScript.SyntaxKind.GreaterThanToken:
+ // stack++;
+ // break;
+ // case TypeScript.SyntaxKind.CommaToken:
+ // if (stack == 0) {
+ // argumentIndex++;
+ // }
+ // break;
+ // case TypeScript.SyntaxKind.CloseBraceToken:
+ // // This can be object type, skip untill we find the matching open brace token
+ // let unmatchedOpenBraceTokens = 0;
+ // // Skip untill the matching open brace token
+ // token = SignatureInfoHelpers.moveBackUpTillMatchingTokenKind(token, TypeScript.SyntaxKind.CloseBraceToken, TypeScript.SyntaxKind.OpenBraceToken);
+ // if (!token) {
+ // // No matching token was found. bail out
+ // break whileLoop;
+ // }
+ // break;
+ // case TypeScript.SyntaxKind.EqualsGreaterThanToken:
+ // // This can be a function type or a constructor type. In either case, we want to skip the function defintion
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // if (token && token.kind() === TypeScript.SyntaxKind.CloseParenToken) {
+ // // Skip untill the matching open paren token
+ // token = SignatureInfoHelpers.moveBackUpTillMatchingTokenKind(token, TypeScript.SyntaxKind.CloseParenToken, TypeScript.SyntaxKind.OpenParenToken);
+ // if (token && token.kind() === TypeScript.SyntaxKind.GreaterThanToken) {
+ // // Another generic type argument list, skip it\
+ // token = SignatureInfoHelpers.moveBackUpTillMatchingTokenKind(token, TypeScript.SyntaxKind.GreaterThanToken, TypeScript.SyntaxKind.LessThanToken);
+ // }
+ // if (token && token.kind() === TypeScript.SyntaxKind.NewKeyword) {
+ // // In case this was a constructor type, skip the new keyword
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // }
+ // if (!token) {
+ // // No matching token was found. bail out
+ // break whileLoop;
+ // }
+ // }
+ // else {
+ // // This is not a funtion type. exit the main loop
+ // break whileLoop;
+ // }
+ // break;
+ // case TypeScript.SyntaxKind.IdentifierName:
+ // case TypeScript.SyntaxKind.AnyKeyword:
+ // case TypeScript.SyntaxKind.NumberKeyword:
+ // case TypeScript.SyntaxKind.StringKeyword:
+ // case TypeScript.SyntaxKind.VoidKeyword:
+ // case TypeScript.SyntaxKind.BooleanKeyword:
+ // case TypeScript.SyntaxKind.DotToken:
+ // case TypeScript.SyntaxKind.OpenBracketToken:
+ // case TypeScript.SyntaxKind.CloseBracketToken:
+ // // Valid tokens in a type name. Skip.
+ // break;
+ // default:
+ // break whileLoop;
+ // }
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // }
+ // return null;
+ //}
+ //private static moveBackUpTillMatchingTokenKind(token: TypeScript.ISyntaxToken, tokenKind: TypeScript.SyntaxKind, matchingTokenKind: TypeScript.SyntaxKind): TypeScript.ISyntaxToken {
+ // if (!token || token.kind() !== tokenKind) {
+ // throw TypeScript.Errors.invalidOperation();
+ // }
+ // // Skip the current token
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // let stack = 0;
+ // while (token) {
+ // if (token.kind() === matchingTokenKind) {
+ // if (stack === 0) {
+ // // Found the matching token, return
+ // return token;
+ // }
+ // else if (stack < 0) {
+ // // tokens overlapped.. bail out.
+ // break;
+ // }
+ // else {
+ // stack--;
+ // }
+ // }
+ // else if (token.kind() === tokenKind) {
+ // stack++;
+ // }
+ // // Move back
+ // token = previousToken(token, /*includeSkippedTokens*/ true);
+ // }
+ // // Did not find matching token
+ // return null;
+ //}
+ var emptyArray = [];
+ var ArgumentListKind;
+ (function (ArgumentListKind) {
+ ArgumentListKind[ArgumentListKind["TypeArguments"] = 0] = "TypeArguments";
+ ArgumentListKind[ArgumentListKind["CallArguments"] = 1] = "CallArguments";
+ ArgumentListKind[ArgumentListKind["TaggedTemplateArguments"] = 2] = "TaggedTemplateArguments";
+ })(ArgumentListKind || (ArgumentListKind = {}));
+ function getSignatureHelpItems(program, sourceFile, position, cancellationToken) {
+ var typeChecker = program.getTypeChecker();
+ // Decide whether to show signature help
+ var startingToken = ts.findTokenOnLeftOfPosition(sourceFile, position);
+ if (!startingToken) {
+ // We are at the beginning of the file
+ return undefined;
+ }
+ var argumentInfo = getContainingArgumentInfo(startingToken);
+ cancellationToken.throwIfCancellationRequested();
+ // Semantic filtering of signature help
+ if (!argumentInfo) {
+ return undefined;
+ }
+ var call = argumentInfo.invocation;
+ var candidates = [];
+ var resolvedSignature = typeChecker.getResolvedSignature(call, candidates);
+ cancellationToken.throwIfCancellationRequested();
+ if (!candidates.length) {
+ // We didn't have any sig help items produced by the TS compiler. If this is a JS
+ // file, then see if we can figure out anything better.
+ if (ts.isJavaScript(sourceFile.fileName)) {
+ return createJavaScriptSignatureHelpItems(argumentInfo);
+ }
+ return undefined;
+ }
+ return createSignatureHelpItems(candidates, resolvedSignature, argumentInfo);
+ function createJavaScriptSignatureHelpItems(argumentInfo) {
+ if (argumentInfo.invocation.kind !== 168 /* CallExpression */) {
+ return undefined;
+ }
+ // See if we can find some symbol with the call expression name that has call signatures.
+ var callExpression = argumentInfo.invocation;
+ var expression = callExpression.expression;
+ var name = expression.kind === 69 /* Identifier */
+ ? expression
+ : expression.kind === 166 /* PropertyAccessExpression */
+ ? expression.name
+ : undefined;
+ if (!name || !name.text) {
+ return undefined;
+ }
+ var typeChecker = program.getTypeChecker();
+ for (var _i = 0, _a = program.getSourceFiles(); _i < _a.length; _i++) {
+ var sourceFile_1 = _a[_i];
+ var nameToDeclarations = sourceFile_1.getNamedDeclarations();
+ var declarations = ts.getProperty(nameToDeclarations, name.text);
+ if (declarations) {
+ for (var _b = 0; _b < declarations.length; _b++) {
+ var declaration = declarations[_b];
+ var symbol = declaration.symbol;
+ if (symbol) {
+ var type = typeChecker.getTypeOfSymbolAtLocation(symbol, declaration);
+ if (type) {
+ var callSignatures = type.getCallSignatures();
+ if (callSignatures && callSignatures.length) {
+ return createSignatureHelpItems(callSignatures, callSignatures[0], argumentInfo);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ /**
+ * Returns relevant information for the argument list and the current argument if we are
+ * in the argument of an invocation; returns undefined otherwise.
+ */
+ function getImmediatelyContainingArgumentInfo(node) {
+ if (node.parent.kind === 168 /* CallExpression */ || node.parent.kind === 169 /* NewExpression */) {
+ var callExpression = node.parent;
+ // There are 3 cases to handle:
+ // 1. The token introduces a list, and should begin a sig help session
+ // 2. The token is either not associated with a list, or ends a list, so the session should end
+ // 3. The token is buried inside a list, and should give sig help
+ //
+ // The following are examples of each:
+ //
+ // Case 1:
+ // foo<#T, U>(#a, b) -> The token introduces a list, and should begin a sig help session
+ // Case 2:
+ // fo#o<T, U>#(a, b)# -> The token is either not associated with a list, or ends a list, so the session should end
+ // Case 3:
+ // foo<T#, U#>(a#, #b#) -> The token is buried inside a list, and should give sig help
+ // Find out if 'node' is an argument, a type argument, or neither
+ if (node.kind === 25 /* LessThanToken */ ||
+ node.kind === 17 /* OpenParenToken */) {
+ // Find the list that starts right *after* the < or ( token.
+ // If the user has just opened a list, consider this item 0.
+ var list = getChildListThatStartsWithOpenerToken(callExpression, node, sourceFile);
+ var isTypeArgList = callExpression.typeArguments && callExpression.typeArguments.pos === list.pos;
+ ts.Debug.assert(list !== undefined);
+ return {
+ kind: isTypeArgList ? 0 /* TypeArguments */ : 1 /* CallArguments */,
+ invocation: callExpression,
+ argumentsSpan: getApplicableSpanForArguments(list),
+ argumentIndex: 0,
+ argumentCount: getArgumentCount(list)
+ };
+ }
+ // findListItemInfo can return undefined if we are not in parent's argument list
+ // or type argument list. This includes cases where the cursor is:
+ // - To the right of the closing paren, non-substitution template, or template tail.
+ // - Between the type arguments and the arguments (greater than token)
+ // - On the target of the call (parent.func)
+ // - On the 'new' keyword in a 'new' expression
+ var listItemInfo = ts.findListItemInfo(node);
+ if (listItemInfo) {
+ var list = listItemInfo.list;
+ var isTypeArgList = callExpression.typeArguments && callExpression.typeArguments.pos === list.pos;
+ var argumentIndex = getArgumentIndex(list, node);
+ var argumentCount = getArgumentCount(list);
+ ts.Debug.assert(argumentIndex === 0 || argumentIndex < argumentCount, "argumentCount < argumentIndex, " + argumentCount + " < " + argumentIndex);
+ return {
+ kind: isTypeArgList ? 0 /* TypeArguments */ : 1 /* CallArguments */,
+ invocation: callExpression,
+ argumentsSpan: getApplicableSpanForArguments(list),
+ argumentIndex: argumentIndex,
+ argumentCount: argumentCount
+ };
+ }
+ }
+ else if (node.kind === 11 /* NoSubstitutionTemplateLiteral */ && node.parent.kind === 170 /* TaggedTemplateExpression */) {
+ // Check if we're actually inside the template;
+ // otherwise we'll fall out and return undefined.
+ if (ts.isInsideTemplateLiteral(node, position)) {
+ return getArgumentListInfoForTemplate(node.parent, /*argumentIndex*/ 0);
+ }
+ }
+ else if (node.kind === 12 /* TemplateHead */ && node.parent.parent.kind === 170 /* TaggedTemplateExpression */) {
+ var templateExpression = node.parent;
+ var tagExpression = templateExpression.parent;
+ ts.Debug.assert(templateExpression.kind === 183 /* TemplateExpression */);
+ var argumentIndex = ts.isInsideTemplateLiteral(node, position) ? 0 : 1;
+ return getArgumentListInfoForTemplate(tagExpression, argumentIndex);
+ }
+ else if (node.parent.kind === 190 /* TemplateSpan */ && node.parent.parent.parent.kind === 170 /* TaggedTemplateExpression */) {
+ var templateSpan = node.parent;
+ var templateExpression = templateSpan.parent;
+ var tagExpression = templateExpression.parent;
+ ts.Debug.assert(templateExpression.kind === 183 /* TemplateExpression */);
+ // If we're just after a template tail, don't show signature help.
+ if (node.kind === 14 /* TemplateTail */ && !ts.isInsideTemplateLiteral(node, position)) {
+ return undefined;
+ }
+ var spanIndex = templateExpression.templateSpans.indexOf(templateSpan);
+ var argumentIndex = getArgumentIndexForTemplatePiece(spanIndex, node);
+ return getArgumentListInfoForTemplate(tagExpression, argumentIndex);
+ }
+ return undefined;
+ }
+ function getArgumentIndex(argumentsList, node) {
+ // The list we got back can include commas. In the presence of errors it may
+ // also just have nodes without commas. For example "Foo(a b c)" will have 3
+ // args without commas. We want to find what index we're at. So we count
+ // forward until we hit ourselves, only incrementing the index if it isn't a
+ // comma.
+ //
+ // Note: the subtlety around trailing commas (in getArgumentCount) does not apply
+ // here. That's because we're only walking forward until we hit the node we're
+ // on. In that case, even if we're after the trailing comma, we'll still see
+ // that trailing comma in the list, and we'll have generated the appropriate
+ // arg index.
+ var argumentIndex = 0;
+ var listChildren = argumentsList.getChildren();
+ for (var _i = 0; _i < listChildren.length; _i++) {
+ var child = listChildren[_i];
+ if (child === node) {
+ break;
+ }
+ if (child.kind !== 24 /* CommaToken */) {
+ argumentIndex++;
+ }
+ }
+ return argumentIndex;
+ }
+ function getArgumentCount(argumentsList) {
+ // The argument count for a list is normally the number of non-comma children it has.
+ // For example, if you have "Foo(a,b)" then there will be three children of the arg
+ // list 'a' '<comma>' 'b'. So, in this case the arg count will be 2. However, there
+ // is a small subtlety. If you have "Foo(a,)", then the child list will just have
+ // 'a' '<comma>'. So, in the case where the last child is a comma, we increase the
+ // arg count by one to compensate.
+ //
+ // Note: this subtlety only applies to the last comma. If you had "Foo(a,," then
+ // we'll have: 'a' '<comma>' '<missing>'
+ // That will give us 2 non-commas. We then add one for the last comma, givin us an
+ // arg count of 3.
+ var listChildren = argumentsList.getChildren();
+ var argumentCount = ts.countWhere(listChildren, function (arg) { return arg.kind !== 24 /* CommaToken */; });
+ if (listChildren.length > 0 && ts.lastOrUndefined(listChildren).kind === 24 /* CommaToken */) {
+ argumentCount++;
+ }
+ return argumentCount;
+ }
+ // spanIndex is either the index for a given template span.
+ // This does not give appropriate results for a NoSubstitutionTemplateLiteral
+ function getArgumentIndexForTemplatePiece(spanIndex, node) {
+ // Because the TemplateStringsArray is the first argument, we have to offset each substitution expression by 1.
+ // There are three cases we can encounter:
+ // 1. We are precisely in the template literal (argIndex = 0).
+ // 2. We are in or to the right of the substitution expression (argIndex = spanIndex + 1).
+ // 3. We are directly to the right of the template literal, but because we look for the token on the left,
+ // not enough to put us in the substitution expression; we should consider ourselves part of
+ // the *next* span's expression by offsetting the index (argIndex = (spanIndex + 1) + 1).
+ //
+ // Example: f `# abcd $#{# 1 + 1# }# efghi ${ #"#hello"# } # `
+ // ^ ^ ^ ^ ^ ^ ^ ^ ^
+ // Case: 1 1 3 2 1 3 2 2 1
+ ts.Debug.assert(position >= node.getStart(), "Assumed 'position' could not occur before node.");
+ if (ts.isTemplateLiteralKind(node.kind)) {
+ if (ts.isInsideTemplateLiteral(node, position)) {
+ return 0;
+ }
+ return spanIndex + 2;
+ }
+ return spanIndex + 1;
+ }
+ function getArgumentListInfoForTemplate(tagExpression, argumentIndex) {
+ // argumentCount is either 1 or (numSpans + 1) to account for the template strings array argument.
+ var argumentCount = tagExpression.template.kind === 11 /* NoSubstitutionTemplateLiteral */
+ ? 1
+ : tagExpression.template.templateSpans.length + 1;
+ ts.Debug.assert(argumentIndex === 0 || argumentIndex < argumentCount, "argumentCount < argumentIndex, " + argumentCount + " < " + argumentIndex);
+ return {
+ kind: 2 /* TaggedTemplateArguments */,
+ invocation: tagExpression,
+ argumentsSpan: getApplicableSpanForTaggedTemplate(tagExpression),
+ argumentIndex: argumentIndex,
+ argumentCount: argumentCount
+ };
+ }
+ function getApplicableSpanForArguments(argumentsList) {
+ // We use full start and skip trivia on the end because we want to include trivia on
+ // both sides. For example,
+ //
+ // foo( /*comment */ a, b, c /*comment*/ )
+ // | |
+ //
+ // The applicable span is from the first bar to the second bar (inclusive,
+ // but not including parentheses)
+ var applicableSpanStart = argumentsList.getFullStart();
+ var applicableSpanEnd = ts.skipTrivia(sourceFile.text, argumentsList.getEnd(), /*stopAfterLineBreak*/ false);
+ return ts.createTextSpan(applicableSpanStart, applicableSpanEnd - applicableSpanStart);
+ }
+ function getApplicableSpanForTaggedTemplate(taggedTemplate) {
+ var template = taggedTemplate.template;
+ var applicableSpanStart = template.getStart();
+ var applicableSpanEnd = template.getEnd();
+ // We need to adjust the end position for the case where the template does not have a tail.
+ // Otherwise, we will not show signature help past the expression.
+ // For example,
+ //
+ // ` ${ 1 + 1 foo(10)
+ // | |
+ //
+ // This is because a Missing node has no width. However, what we actually want is to include trivia
+ // leading up to the next token in case the user is about to type in a TemplateMiddle or TemplateTail.
+ if (template.kind === 183 /* TemplateExpression */) {
+ var lastSpan = ts.lastOrUndefined(template.templateSpans);
+ if (lastSpan.literal.getFullWidth() === 0) {
+ applicableSpanEnd = ts.skipTrivia(sourceFile.text, applicableSpanEnd, /*stopAfterLineBreak*/ false);
+ }
+ }
+ return ts.createTextSpan(applicableSpanStart, applicableSpanEnd - applicableSpanStart);
+ }
+ function getContainingArgumentInfo(node) {
+ for (var n = node; n.kind !== 248 /* SourceFile */; n = n.parent) {
+ if (ts.isFunctionBlock(n)) {
+ return undefined;
+ }
+ // If the node is not a subspan of its parent, this is a big problem.
+ // There have been crashes that might be caused by this violation.
+ if (n.pos < n.parent.pos || n.end > n.parent.end) {
+ ts.Debug.fail("Node of kind " + n.kind + " is not a subspan of its parent of kind " + n.parent.kind);
+ }
+ var argumentInfo_1 = getImmediatelyContainingArgumentInfo(n);
+ if (argumentInfo_1) {
+ return argumentInfo_1;
+ }
+ }
+ return undefined;
+ }
+ function getChildListThatStartsWithOpenerToken(parent, openerToken, sourceFile) {
+ var children = parent.getChildren(sourceFile);
+ var indexOfOpenerToken = children.indexOf(openerToken);
+ ts.Debug.assert(indexOfOpenerToken >= 0 && children.length > indexOfOpenerToken + 1);
+ return children[indexOfOpenerToken + 1];
+ }
+ /**
+ * The selectedItemIndex could be negative for several reasons.
+ * 1. There are too many arguments for all of the overloads
+ * 2. None of the overloads were type compatible
+ * The solution here is to try to pick the best overload by picking
+ * either the first one that has an appropriate number of parameters,
+ * or the one with the most parameters.
+ */
+ function selectBestInvalidOverloadIndex(candidates, argumentCount) {
+ var maxParamsSignatureIndex = -1;
+ var maxParams = -1;
+ for (var i = 0; i < candidates.length; i++) {
+ var candidate = candidates[i];
+ if (candidate.hasRestParameter || candidate.parameters.length >= argumentCount) {
+ return i;
+ }
+ if (candidate.parameters.length > maxParams) {
+ maxParams = candidate.parameters.length;
+ maxParamsSignatureIndex = i;
+ }
+ }
+ return maxParamsSignatureIndex;
+ }
+ function createSignatureHelpItems(candidates, bestSignature, argumentListInfo) {
+ var applicableSpan = argumentListInfo.argumentsSpan;
+ var isTypeParameterList = argumentListInfo.kind === 0 /* TypeArguments */;
+ var invocation = argumentListInfo.invocation;
+ var callTarget = ts.getInvokedExpression(invocation);
+ var callTargetSymbol = typeChecker.getSymbolAtLocation(callTarget);
+ var callTargetDisplayParts = callTargetSymbol && ts.symbolToDisplayParts(typeChecker, callTargetSymbol, /*enclosingDeclaration*/ undefined, /*meaning*/ undefined);
+ var items = ts.map(candidates, function (candidateSignature) {
+ var signatureHelpParameters;
+ var prefixDisplayParts = [];
+ var suffixDisplayParts = [];
+ if (callTargetDisplayParts) {
+ ts.addRange(prefixDisplayParts, callTargetDisplayParts);
+ }
+ if (isTypeParameterList) {
+ prefixDisplayParts.push(ts.punctuationPart(25 /* LessThanToken */));
+ var typeParameters = candidateSignature.typeParameters;
+ signatureHelpParameters = typeParameters && typeParameters.length > 0 ? ts.map(typeParameters, createSignatureHelpParameterForTypeParameter) : emptyArray;
+ suffixDisplayParts.push(ts.punctuationPart(27 /* GreaterThanToken */));
+ var parameterParts = ts.mapToDisplayParts(function (writer) {
+ return typeChecker.getSymbolDisplayBuilder().buildDisplayForParametersAndDelimiters(candidateSignature.parameters, writer, invocation);
+ });
+ ts.addRange(suffixDisplayParts, parameterParts);
+ }
+ else {
+ var typeParameterParts = ts.mapToDisplayParts(function (writer) {
+ return typeChecker.getSymbolDisplayBuilder().buildDisplayForTypeParametersAndDelimiters(candidateSignature.typeParameters, writer, invocation);
+ });
+ ts.addRange(prefixDisplayParts, typeParameterParts);
+ prefixDisplayParts.push(ts.punctuationPart(17 /* OpenParenToken */));
+ var parameters = candidateSignature.parameters;
+ signatureHelpParameters = parameters.length > 0 ? ts.map(parameters, createSignatureHelpParameterForParameter) : emptyArray;
+ suffixDisplayParts.push(ts.punctuationPart(18 /* CloseParenToken */));
+ }
+ var returnTypeParts = ts.mapToDisplayParts(function (writer) {
+ return typeChecker.getSymbolDisplayBuilder().buildReturnTypeDisplay(candidateSignature, writer, invocation);
+ });
+ ts.addRange(suffixDisplayParts, returnTypeParts);
+ return {
+ isVariadic: candidateSignature.hasRestParameter,
+ prefixDisplayParts: prefixDisplayParts,
+ suffixDisplayParts: suffixDisplayParts,
+ separatorDisplayParts: [ts.punctuationPart(24 /* CommaToken */), ts.spacePart()],
+ parameters: signatureHelpParameters,
+ documentation: candidateSignature.getDocumentationComment()
+ };
+ });
+ var argumentIndex = argumentListInfo.argumentIndex;
+ // argumentCount is the *apparent* number of arguments.
+ var argumentCount = argumentListInfo.argumentCount;
+ var selectedItemIndex = candidates.indexOf(bestSignature);
+ if (selectedItemIndex < 0) {
+ selectedItemIndex = selectBestInvalidOverloadIndex(candidates, argumentCount);
+ }
+ ts.Debug.assert(argumentIndex === 0 || argumentIndex < argumentCount, "argumentCount < argumentIndex, " + argumentCount + " < " + argumentIndex);
+ return {
+ items: items,
+ applicableSpan: applicableSpan,
+ selectedItemIndex: selectedItemIndex,
+ argumentIndex: argumentIndex,
+ argumentCount: argumentCount
+ };
+ function createSignatureHelpParameterForParameter(parameter) {
+ var displayParts = ts.mapToDisplayParts(function (writer) {
+ return typeChecker.getSymbolDisplayBuilder().buildParameterDisplay(parameter, writer, invocation);
+ });
+ return {
+ name: parameter.name,
+ documentation: parameter.getDocumentationComment(),
+ displayParts: displayParts,
+ isOptional: typeChecker.isOptionalParameter(parameter.valueDeclaration)
+ };
+ }
+ function createSignatureHelpParameterForTypeParameter(typeParameter) {
+ var displayParts = ts.mapToDisplayParts(function (writer) {
+ return typeChecker.getSymbolDisplayBuilder().buildTypeParameterDisplay(typeParameter, writer, invocation);
+ });
+ return {
+ name: typeParameter.symbol.name,
+ documentation: emptyArray,
+ displayParts: displayParts,
+ isOptional: false
+ };
+ }
+ }
+ }
+ SignatureHelp.getSignatureHelpItems = getSignatureHelpItems;
+ })(SignatureHelp = ts.SignatureHelp || (ts.SignatureHelp = {}));
+})(ts || (ts = {}));
+// These utilities are common to multiple language service features.
+/* @internal */
+var ts;
+(function (ts) {
+ function getEndLinePosition(line, sourceFile) {
+ ts.Debug.assert(line >= 0);
+ var lineStarts = sourceFile.getLineStarts();
+ var lineIndex = line;
+ if (lineIndex + 1 === lineStarts.length) {
+ // last line - return EOF
+ return sourceFile.text.length - 1;
+ }
+ else {
+ // current line start
+ var start = lineStarts[lineIndex];
+ // take the start position of the next line -1 = it should be some line break
+ var pos = lineStarts[lineIndex + 1] - 1;
+ ts.Debug.assert(ts.isLineBreak(sourceFile.text.charCodeAt(pos)));
+ // walk backwards skipping line breaks, stop the the beginning of current line.
+ // i.e:
+ // <some text>
+ // $ <- end of line for this position should match the start position
+ while (start <= pos && ts.isLineBreak(sourceFile.text.charCodeAt(pos))) {
+ pos--;
+ }
+ return pos;
+ }
+ }
+ ts.getEndLinePosition = getEndLinePosition;
+ function getLineStartPositionForPosition(position, sourceFile) {
+ var lineStarts = sourceFile.getLineStarts();
+ var line = sourceFile.getLineAndCharacterOfPosition(position).line;
+ return lineStarts[line];
+ }
+ ts.getLineStartPositionForPosition = getLineStartPositionForPosition;
+ function rangeContainsRange(r1, r2) {
+ return startEndContainsRange(r1.pos, r1.end, r2);
+ }
+ ts.rangeContainsRange = rangeContainsRange;
+ function startEndContainsRange(start, end, range) {
+ return start <= range.pos && end >= range.end;
+ }
+ ts.startEndContainsRange = startEndContainsRange;
+ function rangeContainsStartEnd(range, start, end) {
+ return range.pos <= start && range.end >= end;
+ }
+ ts.rangeContainsStartEnd = rangeContainsStartEnd;
+ function rangeOverlapsWithStartEnd(r1, start, end) {
+ return startEndOverlapsWithStartEnd(r1.pos, r1.end, start, end);
+ }
+ ts.rangeOverlapsWithStartEnd = rangeOverlapsWithStartEnd;
+ function startEndOverlapsWithStartEnd(start1, end1, start2, end2) {
+ var start = Math.max(start1, start2);
+ var end = Math.min(end1, end2);
+ return start < end;
+ }
+ ts.startEndOverlapsWithStartEnd = startEndOverlapsWithStartEnd;
+ function positionBelongsToNode(candidate, position, sourceFile) {
+ return candidate.end > position || !isCompletedNode(candidate, sourceFile);
+ }
+ ts.positionBelongsToNode = positionBelongsToNode;
+ function isCompletedNode(n, sourceFile) {
+ if (ts.nodeIsMissing(n)) {
+ return false;
+ }
+ switch (n.kind) {
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 165 /* ObjectLiteralExpression */:
+ case 161 /* ObjectBindingPattern */:
+ case 155 /* TypeLiteral */:
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ case 220 /* CaseBlock */:
+ return nodeEndsWith(n, 16 /* CloseBraceToken */, sourceFile);
+ case 244 /* CatchClause */:
+ return isCompletedNode(n.block, sourceFile);
+ case 169 /* NewExpression */:
+ if (!n.arguments) {
+ return true;
+ }
+ // fall through
+ case 168 /* CallExpression */:
+ case 172 /* ParenthesizedExpression */:
+ case 160 /* ParenthesizedType */:
+ return nodeEndsWith(n, 18 /* CloseParenToken */, sourceFile);
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ return isCompletedNode(n.type, sourceFile);
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 148 /* ConstructSignature */:
+ case 147 /* CallSignature */:
+ case 174 /* ArrowFunction */:
+ if (n.body) {
+ return isCompletedNode(n.body, sourceFile);
+ }
+ if (n.type) {
+ return isCompletedNode(n.type, sourceFile);
+ }
+ // Even though type parameters can be unclosed, we can get away with
+ // having at least a closing paren.
+ return hasChildOfKind(n, 18 /* CloseParenToken */, sourceFile);
+ case 218 /* ModuleDeclaration */:
+ return n.body && isCompletedNode(n.body, sourceFile);
+ case 196 /* IfStatement */:
+ if (n.elseStatement) {
+ return isCompletedNode(n.elseStatement, sourceFile);
+ }
+ return isCompletedNode(n.thenStatement, sourceFile);
+ case 195 /* ExpressionStatement */:
+ return isCompletedNode(n.expression, sourceFile) ||
+ hasChildOfKind(n, 23 /* SemicolonToken */);
+ case 164 /* ArrayLiteralExpression */:
+ case 162 /* ArrayBindingPattern */:
+ case 167 /* ElementAccessExpression */:
+ case 136 /* ComputedPropertyName */:
+ case 157 /* TupleType */:
+ return nodeEndsWith(n, 20 /* CloseBracketToken */, sourceFile);
+ case 149 /* IndexSignature */:
+ if (n.type) {
+ return isCompletedNode(n.type, sourceFile);
+ }
+ return hasChildOfKind(n, 20 /* CloseBracketToken */, sourceFile);
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ // there is no such thing as terminator token for CaseClause/DefaultClause so for simplicitly always consider them non-completed
+ return false;
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 198 /* WhileStatement */:
+ return isCompletedNode(n.statement, sourceFile);
+ case 197 /* DoStatement */:
+ // rough approximation: if DoStatement has While keyword - then if node is completed is checking the presence of ')';
+ var hasWhileKeyword = findChildOfKind(n, 104 /* WhileKeyword */, sourceFile);
+ if (hasWhileKeyword) {
+ return nodeEndsWith(n, 18 /* CloseParenToken */, sourceFile);
+ }
+ return isCompletedNode(n.statement, sourceFile);
+ case 154 /* TypeQuery */:
+ return isCompletedNode(n.exprName, sourceFile);
+ case 176 /* TypeOfExpression */:
+ case 175 /* DeleteExpression */:
+ case 177 /* VoidExpression */:
+ case 184 /* YieldExpression */:
+ case 185 /* SpreadElementExpression */:
+ var unaryWordExpression = n;
+ return isCompletedNode(unaryWordExpression.expression, sourceFile);
+ case 170 /* TaggedTemplateExpression */:
+ return isCompletedNode(n.template, sourceFile);
+ case 183 /* TemplateExpression */:
+ var lastSpan = ts.lastOrUndefined(n.templateSpans);
+ return isCompletedNode(lastSpan, sourceFile);
+ case 190 /* TemplateSpan */:
+ return ts.nodeIsPresent(n.literal);
+ case 179 /* PrefixUnaryExpression */:
+ return isCompletedNode(n.operand, sourceFile);
+ case 181 /* BinaryExpression */:
+ return isCompletedNode(n.right, sourceFile);
+ case 182 /* ConditionalExpression */:
+ return isCompletedNode(n.whenFalse, sourceFile);
+ default:
+ return true;
+ }
+ }
+ ts.isCompletedNode = isCompletedNode;
+ /*
+ * Checks if node ends with 'expectedLastToken'.
+ * If child at position 'length - 1' is 'SemicolonToken' it is skipped and 'expectedLastToken' is compared with child at position 'length - 2'.
+ */
+ function nodeEndsWith(n, expectedLastToken, sourceFile) {
+ var children = n.getChildren(sourceFile);
+ if (children.length) {
+ var last = ts.lastOrUndefined(children);
+ if (last.kind === expectedLastToken) {
+ return true;
+ }
+ else if (last.kind === 23 /* SemicolonToken */ && children.length !== 1) {
+ return children[children.length - 2].kind === expectedLastToken;
+ }
+ }
+ return false;
+ }
+ function findListItemInfo(node) {
+ var list = findContainingList(node);
+ // It is possible at this point for syntaxList to be undefined, either if
+ // node.parent had no list child, or if none of its list children contained
+ // the span of node. If this happens, return undefined. The caller should
+ // handle this case.
+ if (!list) {
+ return undefined;
+ }
+ var children = list.getChildren();
+ var listItemIndex = ts.indexOf(children, node);
+ return {
+ listItemIndex: listItemIndex,
+ list: list
+ };
+ }
+ ts.findListItemInfo = findListItemInfo;
+ function hasChildOfKind(n, kind, sourceFile) {
+ return !!findChildOfKind(n, kind, sourceFile);
+ }
+ ts.hasChildOfKind = hasChildOfKind;
+ function findChildOfKind(n, kind, sourceFile) {
+ return ts.forEach(n.getChildren(sourceFile), function (c) { return c.kind === kind && c; });
+ }
+ ts.findChildOfKind = findChildOfKind;
+ function findContainingList(node) {
+ // The node might be a list element (nonsynthetic) or a comma (synthetic). Either way, it will
+ // be parented by the container of the SyntaxList, not the SyntaxList itself.
+ // In order to find the list item index, we first need to locate SyntaxList itself and then search
+ // for the position of the relevant node (or comma).
+ var syntaxList = ts.forEach(node.parent.getChildren(), function (c) {
+ // find syntax list that covers the span of the node
+ if (c.kind === 271 /* SyntaxList */ && c.pos <= node.pos && c.end >= node.end) {
+ return c;
+ }
+ });
+ // Either we didn't find an appropriate list, or the list must contain us.
+ ts.Debug.assert(!syntaxList || ts.contains(syntaxList.getChildren(), node));
+ return syntaxList;
+ }
+ ts.findContainingList = findContainingList;
+ /* Gets the token whose text has range [start, end) and
+ * position >= start and (position < end or (position === end && token is keyword or identifier))
+ */
+ function getTouchingWord(sourceFile, position) {
+ return getTouchingToken(sourceFile, position, function (n) { return isWord(n.kind); });
+ }
+ ts.getTouchingWord = getTouchingWord;
+ /* Gets the token whose text has range [start, end) and position >= start
+ * and (position < end or (position === end && token is keyword or identifier or numeric\string litera))
+ */
+ function getTouchingPropertyName(sourceFile, position) {
+ return getTouchingToken(sourceFile, position, function (n) { return isPropertyName(n.kind); });
+ }
+ ts.getTouchingPropertyName = getTouchingPropertyName;
+ /** Returns the token if position is in [start, end) or if position === end and includeItemAtEndPosition(token) === true */
+ function getTouchingToken(sourceFile, position, includeItemAtEndPosition) {
+ return getTokenAtPositionWorker(sourceFile, position, /*allowPositionInLeadingTrivia*/ false, includeItemAtEndPosition);
+ }
+ ts.getTouchingToken = getTouchingToken;
+ /** Returns a token if position is in [start-of-leading-trivia, end) */
+ function getTokenAtPosition(sourceFile, position) {
+ return getTokenAtPositionWorker(sourceFile, position, /*allowPositionInLeadingTrivia*/ true, /*includeItemAtEndPosition*/ undefined);
+ }
+ ts.getTokenAtPosition = getTokenAtPosition;
+ /** Get the token whose text contains the position */
+ function getTokenAtPositionWorker(sourceFile, position, allowPositionInLeadingTrivia, includeItemAtEndPosition) {
+ var current = sourceFile;
+ outer: while (true) {
+ if (isToken(current)) {
+ // exit early
+ return current;
+ }
+ // find the child that contains 'position'
+ for (var i = 0, n = current.getChildCount(sourceFile); i < n; i++) {
+ var child = current.getChildAt(i);
+ var start = allowPositionInLeadingTrivia ? child.getFullStart() : child.getStart(sourceFile);
+ if (start <= position) {
+ var end = child.getEnd();
+ if (position < end || (position === end && child.kind === 1 /* EndOfFileToken */)) {
+ current = child;
+ continue outer;
+ }
+ else if (includeItemAtEndPosition && end === position) {
+ var previousToken = findPrecedingToken(position, sourceFile, child);
+ if (previousToken && includeItemAtEndPosition(previousToken)) {
+ return previousToken;
+ }
+ }
+ }
+ }
+ return current;
+ }
+ }
+ /**
+ * The token on the left of the position is the token that strictly includes the position
+ * or sits to the left of the cursor if it is on a boundary. For example
+ *
+ * fo|o -> will return foo
+ * foo <comment> |bar -> will return foo
+ *
+ */
+ function findTokenOnLeftOfPosition(file, position) {
+ // Ideally, getTokenAtPosition should return a token. However, it is currently
+ // broken, so we do a check to make sure the result was indeed a token.
+ var tokenAtPosition = getTokenAtPosition(file, position);
+ if (isToken(tokenAtPosition) && position > tokenAtPosition.getStart(file) && position < tokenAtPosition.getEnd()) {
+ return tokenAtPosition;
+ }
+ return findPrecedingToken(position, file);
+ }
+ ts.findTokenOnLeftOfPosition = findTokenOnLeftOfPosition;
+ function findNextToken(previousToken, parent) {
+ return find(parent);
+ function find(n) {
+ if (isToken(n) && n.pos === previousToken.end) {
+ // this is token that starts at the end of previous token - return it
+ return n;
+ }
+ var children = n.getChildren();
+ for (var _i = 0; _i < children.length; _i++) {
+ var child = children[_i];
+ var shouldDiveInChildNode =
+ // previous token is enclosed somewhere in the child
+ (child.pos <= previousToken.pos && child.end > previousToken.end) ||
+ // previous token ends exactly at the beginning of child
+ (child.pos === previousToken.end);
+ if (shouldDiveInChildNode && nodeHasTokens(child)) {
+ return find(child);
+ }
+ }
+ return undefined;
+ }
+ }
+ ts.findNextToken = findNextToken;
+ function findPrecedingToken(position, sourceFile, startNode) {
+ return find(startNode || sourceFile);
+ function findRightmostToken(n) {
+ if (isToken(n) || n.kind === 236 /* JsxText */) {
+ return n;
+ }
+ var children = n.getChildren();
+ var candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length);
+ return candidate && findRightmostToken(candidate);
+ }
+ function find(n) {
+ if (isToken(n) || n.kind === 236 /* JsxText */) {
+ return n;
+ }
+ var children = n.getChildren();
+ for (var i = 0, len = children.length; i < len; i++) {
+ var child = children[i];
+ // condition 'position < child.end' checks if child node end after the position
+ // in the example below this condition will be false for 'aaaa' and 'bbbb' and true for 'ccc'
+ // aaaa___bbbb___$__ccc
+ // after we found child node with end after the position we check if start of the node is after the position.
+ // if yes - then position is in the trivia and we need to look into the previous child to find the token in question.
+ // if no - position is in the node itself so we should recurse in it.
+ // NOTE: JsxText is a weird kind of node that can contain only whitespaces (since they are not counted as trivia).
+ // if this is the case - then we should assume that token in question is located in previous child.
+ if (position < child.end && (nodeHasTokens(child) || child.kind === 236 /* JsxText */)) {
+ var start = child.getStart(sourceFile);
+ var lookInPreviousChild = (start >= position) ||
+ (child.kind === 236 /* JsxText */ && start === child.end); // whitespace only JsxText
+ if (lookInPreviousChild) {
+ // actual start of the node is past the position - previous token should be at the end of previous child
+ var candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ i);
+ return candidate && findRightmostToken(candidate);
+ }
+ else {
+ // candidate should be in this node
+ return find(child);
+ }
+ }
+ }
+ ts.Debug.assert(startNode !== undefined || n.kind === 248 /* SourceFile */);
+ // Here we know that none of child token nodes embrace the position,
+ // the only known case is when position is at the end of the file.
+ // Try to find the rightmost token in the file without filtering.
+ // Namely we are skipping the check: 'position < node.end'
+ if (children.length) {
+ var candidate = findRightmostChildNodeWithTokens(children, /*exclusiveStartPosition*/ children.length);
+ return candidate && findRightmostToken(candidate);
+ }
+ }
+ /// finds last node that is considered as candidate for search (isCandidate(node) === true) starting from 'exclusiveStartPosition'
+ function findRightmostChildNodeWithTokens(children, exclusiveStartPosition) {
+ for (var i = exclusiveStartPosition - 1; i >= 0; --i) {
+ if (nodeHasTokens(children[i])) {
+ return children[i];
+ }
+ }
+ }
+ }
+ ts.findPrecedingToken = findPrecedingToken;
+ function isInString(sourceFile, position) {
+ var token = getTokenAtPosition(sourceFile, position);
+ return token && token.kind === 9 /* StringLiteral */ && position > token.getStart();
+ }
+ ts.isInString = isInString;
+ function isInComment(sourceFile, position) {
+ return isInCommentHelper(sourceFile, position, /*predicate*/ undefined);
+ }
+ ts.isInComment = isInComment;
+ /**
+ * Returns true if the cursor at position in sourceFile is within a comment that additionally
+ * satisfies predicate, and false otherwise.
+ */
+ function isInCommentHelper(sourceFile, position, predicate) {
+ var token = getTokenAtPosition(sourceFile, position);
+ if (token && position <= token.getStart()) {
+ var commentRanges = ts.getLeadingCommentRanges(sourceFile.text, token.pos);
+ // The end marker of a single-line comment does not include the newline character.
+ // In the following case, we are inside a comment (^ denotes the cursor position):
+ //
+ // // asdf ^\n
+ //
+ // But for multi-line comments, we don't want to be inside the comment in the following case:
+ //
+ // /* asdf */^
+ //
+ // Internally, we represent the end of the comment at the newline and closing '/', respectively.
+ return predicate ?
+ ts.forEach(commentRanges, function (c) { return c.pos < position &&
+ (c.kind == 2 /* SingleLineCommentTrivia */ ? position <= c.end : position < c.end) &&
+ predicate(c); }) :
+ ts.forEach(commentRanges, function (c) { return c.pos < position &&
+ (c.kind == 2 /* SingleLineCommentTrivia */ ? position <= c.end : position < c.end); });
+ }
+ return false;
+ }
+ ts.isInCommentHelper = isInCommentHelper;
+ function hasDocComment(sourceFile, position) {
+ var token = getTokenAtPosition(sourceFile, position);
+ // First, we have to see if this position actually landed in a comment.
+ var commentRanges = ts.getLeadingCommentRanges(sourceFile.text, token.pos);
+ return ts.forEach(commentRanges, jsDocPrefix);
+ function jsDocPrefix(c) {
+ var text = sourceFile.text;
+ return text.length >= c.pos + 3 && text[c.pos] === '/' && text[c.pos + 1] === '*' && text[c.pos + 2] === '*';
+ }
+ }
+ ts.hasDocComment = hasDocComment;
+ /**
+ * Get the corresponding JSDocTag node if the position is in a jsDoc comment
+ */
+ function getJsDocTagAtPosition(sourceFile, position) {
+ var node = ts.getTokenAtPosition(sourceFile, position);
+ if (isToken(node)) {
+ switch (node.kind) {
+ case 102 /* VarKeyword */:
+ case 108 /* LetKeyword */:
+ case 74 /* ConstKeyword */:
+ // if the current token is var, let or const, skip the VariableDeclarationList
+ node = node.parent === undefined ? undefined : node.parent.parent;
+ break;
+ default:
+ node = node.parent;
+ break;
+ }
+ }
+ if (node) {
+ var jsDocComment = node.jsDocComment;
+ if (jsDocComment) {
+ for (var _i = 0, _a = jsDocComment.tags; _i < _a.length; _i++) {
+ var tag = _a[_i];
+ if (tag.pos <= position && position <= tag.end) {
+ return tag;
+ }
+ }
+ }
+ }
+ return undefined;
+ }
+ ts.getJsDocTagAtPosition = getJsDocTagAtPosition;
+ function nodeHasTokens(n) {
+ // If we have a token or node that has a non-zero width, it must have tokens.
+ // Note, that getWidth() does not take trivia into account.
+ return n.getWidth() !== 0;
+ }
+ function getNodeModifiers(node) {
+ var flags = ts.getCombinedNodeFlags(node);
+ var result = [];
+ if (flags & 32 /* Private */)
+ result.push(ts.ScriptElementKindModifier.privateMemberModifier);
+ if (flags & 64 /* Protected */)
+ result.push(ts.ScriptElementKindModifier.protectedMemberModifier);
+ if (flags & 16 /* Public */)
+ result.push(ts.ScriptElementKindModifier.publicMemberModifier);
+ if (flags & 128 /* Static */)
+ result.push(ts.ScriptElementKindModifier.staticModifier);
+ if (flags & 256 /* Abstract */)
+ result.push(ts.ScriptElementKindModifier.abstractModifier);
+ if (flags & 1 /* Export */)
+ result.push(ts.ScriptElementKindModifier.exportedModifier);
+ if (ts.isInAmbientContext(node))
+ result.push(ts.ScriptElementKindModifier.ambientModifier);
+ return result.length > 0 ? result.join(',') : ts.ScriptElementKindModifier.none;
+ }
+ ts.getNodeModifiers = getNodeModifiers;
+ function getTypeArgumentOrTypeParameterList(node) {
+ if (node.kind === 151 /* TypeReference */ || node.kind === 168 /* CallExpression */) {
+ return node.typeArguments;
+ }
+ if (ts.isFunctionLike(node) || node.kind === 214 /* ClassDeclaration */ || node.kind === 215 /* InterfaceDeclaration */) {
+ return node.typeParameters;
+ }
+ return undefined;
+ }
+ ts.getTypeArgumentOrTypeParameterList = getTypeArgumentOrTypeParameterList;
+ function isToken(n) {
+ return n.kind >= 0 /* FirstToken */ && n.kind <= 134 /* LastToken */;
+ }
+ ts.isToken = isToken;
+ function isWord(kind) {
+ return kind === 69 /* Identifier */ || ts.isKeyword(kind);
+ }
+ ts.isWord = isWord;
+ function isPropertyName(kind) {
+ return kind === 9 /* StringLiteral */ || kind === 8 /* NumericLiteral */ || isWord(kind);
+ }
+ function isComment(kind) {
+ return kind === 2 /* SingleLineCommentTrivia */ || kind === 3 /* MultiLineCommentTrivia */;
+ }
+ ts.isComment = isComment;
+ function isStringOrRegularExpressionOrTemplateLiteral(kind) {
+ if (kind === 9 /* StringLiteral */
+ || kind === 10 /* RegularExpressionLiteral */
+ || ts.isTemplateLiteralKind(kind)) {
+ return true;
+ }
+ return false;
+ }
+ ts.isStringOrRegularExpressionOrTemplateLiteral = isStringOrRegularExpressionOrTemplateLiteral;
+ function isPunctuation(kind) {
+ return 15 /* FirstPunctuation */ <= kind && kind <= 68 /* LastPunctuation */;
+ }
+ ts.isPunctuation = isPunctuation;
+ function isInsideTemplateLiteral(node, position) {
+ return ts.isTemplateLiteralKind(node.kind)
+ && (node.getStart() < position && position < node.getEnd()) || (!!node.isUnterminated && position === node.getEnd());
+ }
+ ts.isInsideTemplateLiteral = isInsideTemplateLiteral;
+ function isAccessibilityModifier(kind) {
+ switch (kind) {
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ return true;
+ }
+ return false;
+ }
+ ts.isAccessibilityModifier = isAccessibilityModifier;
+ function compareDataObjects(dst, src) {
+ for (var e in dst) {
+ if (typeof dst[e] === "object") {
+ if (!compareDataObjects(dst[e], src[e])) {
+ return false;
+ }
+ }
+ else if (typeof dst[e] !== "function") {
+ if (dst[e] !== src[e]) {
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+ ts.compareDataObjects = compareDataObjects;
+})(ts || (ts = {}));
+// Display-part writer helpers
+/* @internal */
+var ts;
+(function (ts) {
+ function isFirstDeclarationOfSymbolParameter(symbol) {
+ return symbol.declarations && symbol.declarations.length > 0 && symbol.declarations[0].kind === 138 /* Parameter */;
+ }
+ ts.isFirstDeclarationOfSymbolParameter = isFirstDeclarationOfSymbolParameter;
+ var displayPartWriter = getDisplayPartWriter();
+ function getDisplayPartWriter() {
+ var displayParts;
+ var lineStart;
+ var indent;
+ resetWriter();
+ return {
+ displayParts: function () { return displayParts; },
+ writeKeyword: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.keyword); },
+ writeOperator: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.operator); },
+ writePunctuation: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.punctuation); },
+ writeSpace: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.space); },
+ writeStringLiteral: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.stringLiteral); },
+ writeParameter: function (text) { return writeKind(text, ts.SymbolDisplayPartKind.parameterName); },
+ writeSymbol: writeSymbol,
+ writeLine: writeLine,
+ increaseIndent: function () { indent++; },
+ decreaseIndent: function () { indent--; },
+ clear: resetWriter,
+ trackSymbol: function () { },
+ reportInaccessibleThisError: function () { }
+ };
+ function writeIndent() {
+ if (lineStart) {
+ var indentString = ts.getIndentString(indent);
+ if (indentString) {
+ displayParts.push(displayPart(indentString, ts.SymbolDisplayPartKind.space));
+ }
+ lineStart = false;
+ }
+ }
+ function writeKind(text, kind) {
+ writeIndent();
+ displayParts.push(displayPart(text, kind));
+ }
+ function writeSymbol(text, symbol) {
+ writeIndent();
+ displayParts.push(symbolPart(text, symbol));
+ }
+ function writeLine() {
+ displayParts.push(lineBreakPart());
+ lineStart = true;
+ }
+ function resetWriter() {
+ displayParts = [];
+ lineStart = true;
+ indent = 0;
+ }
+ }
+ function symbolPart(text, symbol) {
+ return displayPart(text, displayPartKind(symbol), symbol);
+ function displayPartKind(symbol) {
+ var flags = symbol.flags;
+ if (flags & 3 /* Variable */) {
+ return isFirstDeclarationOfSymbolParameter(symbol) ? ts.SymbolDisplayPartKind.parameterName : ts.SymbolDisplayPartKind.localName;
+ }
+ else if (flags & 4 /* Property */) {
+ return ts.SymbolDisplayPartKind.propertyName;
+ }
+ else if (flags & 32768 /* GetAccessor */) {
+ return ts.SymbolDisplayPartKind.propertyName;
+ }
+ else if (flags & 65536 /* SetAccessor */) {
+ return ts.SymbolDisplayPartKind.propertyName;
+ }
+ else if (flags & 8 /* EnumMember */) {
+ return ts.SymbolDisplayPartKind.enumMemberName;
+ }
+ else if (flags & 16 /* Function */) {
+ return ts.SymbolDisplayPartKind.functionName;
+ }
+ else if (flags & 32 /* Class */) {
+ return ts.SymbolDisplayPartKind.className;
+ }
+ else if (flags & 64 /* Interface */) {
+ return ts.SymbolDisplayPartKind.interfaceName;
+ }
+ else if (flags & 384 /* Enum */) {
+ return ts.SymbolDisplayPartKind.enumName;
+ }
+ else if (flags & 1536 /* Module */) {
+ return ts.SymbolDisplayPartKind.moduleName;
+ }
+ else if (flags & 8192 /* Method */) {
+ return ts.SymbolDisplayPartKind.methodName;
+ }
+ else if (flags & 262144 /* TypeParameter */) {
+ return ts.SymbolDisplayPartKind.typeParameterName;
+ }
+ else if (flags & 524288 /* TypeAlias */) {
+ return ts.SymbolDisplayPartKind.aliasName;
+ }
+ else if (flags & 8388608 /* Alias */) {
+ return ts.SymbolDisplayPartKind.aliasName;
+ }
+ return ts.SymbolDisplayPartKind.text;
+ }
+ }
+ ts.symbolPart = symbolPart;
+ function displayPart(text, kind, symbol) {
+ return {
+ text: text,
+ kind: ts.SymbolDisplayPartKind[kind]
+ };
+ }
+ ts.displayPart = displayPart;
+ function spacePart() {
+ return displayPart(" ", ts.SymbolDisplayPartKind.space);
+ }
+ ts.spacePart = spacePart;
+ function keywordPart(kind) {
+ return displayPart(ts.tokenToString(kind), ts.SymbolDisplayPartKind.keyword);
+ }
+ ts.keywordPart = keywordPart;
+ function punctuationPart(kind) {
+ return displayPart(ts.tokenToString(kind), ts.SymbolDisplayPartKind.punctuation);
+ }
+ ts.punctuationPart = punctuationPart;
+ function operatorPart(kind) {
+ return displayPart(ts.tokenToString(kind), ts.SymbolDisplayPartKind.operator);
+ }
+ ts.operatorPart = operatorPart;
+ function textOrKeywordPart(text) {
+ var kind = ts.stringToToken(text);
+ return kind === undefined
+ ? textPart(text)
+ : keywordPart(kind);
+ }
+ ts.textOrKeywordPart = textOrKeywordPart;
+ function textPart(text) {
+ return displayPart(text, ts.SymbolDisplayPartKind.text);
+ }
+ ts.textPart = textPart;
+ var carriageReturnLineFeed = "\r\n";
+ /**
+ * The default is CRLF.
+ */
+ function getNewLineOrDefaultFromHost(host) {
+ return host.getNewLine ? host.getNewLine() : carriageReturnLineFeed;
+ }
+ ts.getNewLineOrDefaultFromHost = getNewLineOrDefaultFromHost;
+ function lineBreakPart() {
+ return displayPart("\n", ts.SymbolDisplayPartKind.lineBreak);
+ }
+ ts.lineBreakPart = lineBreakPart;
+ function mapToDisplayParts(writeDisplayParts) {
+ writeDisplayParts(displayPartWriter);
+ var result = displayPartWriter.displayParts();
+ displayPartWriter.clear();
+ return result;
+ }
+ ts.mapToDisplayParts = mapToDisplayParts;
+ function typeToDisplayParts(typechecker, type, enclosingDeclaration, flags) {
+ return mapToDisplayParts(function (writer) {
+ typechecker.getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
+ });
+ }
+ ts.typeToDisplayParts = typeToDisplayParts;
+ function symbolToDisplayParts(typeChecker, symbol, enclosingDeclaration, meaning, flags) {
+ return mapToDisplayParts(function (writer) {
+ typeChecker.getSymbolDisplayBuilder().buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning, flags);
+ });
+ }
+ ts.symbolToDisplayParts = symbolToDisplayParts;
+ function signatureToDisplayParts(typechecker, signature, enclosingDeclaration, flags) {
+ return mapToDisplayParts(function (writer) {
+ typechecker.getSymbolDisplayBuilder().buildSignatureDisplay(signature, writer, enclosingDeclaration, flags);
+ });
+ }
+ ts.signatureToDisplayParts = signatureToDisplayParts;
+ function getDeclaredName(typeChecker, symbol, location) {
+ // If this is an export or import specifier it could have been renamed using the 'as' syntax.
+ // If so we want to search for whatever is under the cursor.
+ if (isImportOrExportSpecifierName(location)) {
+ return location.getText();
+ }
+ // Try to get the local symbol if we're dealing with an 'export default'
+ // since that symbol has the "true" name.
+ var localExportDefaultSymbol = ts.getLocalSymbolForExportDefault(symbol);
+ var name = typeChecker.symbolToString(localExportDefaultSymbol || symbol);
+ return name;
+ }
+ ts.getDeclaredName = getDeclaredName;
+ function isImportOrExportSpecifierName(location) {
+ return location.parent &&
+ (location.parent.kind === 226 /* ImportSpecifier */ || location.parent.kind === 230 /* ExportSpecifier */) &&
+ location.parent.propertyName === location;
+ }
+ ts.isImportOrExportSpecifierName = isImportOrExportSpecifierName;
+ /**
+ * Strip off existed single quotes or double quotes from a given string
+ *
+ * @return non-quoted string
+ */
+ function stripQuotes(name) {
+ var length = name.length;
+ if (length >= 2 &&
+ name.charCodeAt(0) === name.charCodeAt(length - 1) &&
+ (name.charCodeAt(0) === 34 /* doubleQuote */ || name.charCodeAt(0) === 39 /* singleQuote */)) {
+ return name.substring(1, length - 1);
+ }
+ ;
+ return name;
+ }
+ ts.stripQuotes = stripQuotes;
+})(ts || (ts = {}));
+/// <reference path="formatting.ts"/>
+/// <reference path="..\..\compiler\scanner.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var standardScanner = ts.createScanner(2 /* Latest */, /*skipTrivia*/ false, 0 /* Standard */);
+ var jsxScanner = ts.createScanner(2 /* Latest */, /*skipTrivia*/ false, 1 /* JSX */);
+ /**
+ * Scanner that is currently used for formatting
+ */
+ var scanner;
+ var ScanAction;
+ (function (ScanAction) {
+ ScanAction[ScanAction["Scan"] = 0] = "Scan";
+ ScanAction[ScanAction["RescanGreaterThanToken"] = 1] = "RescanGreaterThanToken";
+ ScanAction[ScanAction["RescanSlashToken"] = 2] = "RescanSlashToken";
+ ScanAction[ScanAction["RescanTemplateToken"] = 3] = "RescanTemplateToken";
+ ScanAction[ScanAction["RescanJsxIdentifier"] = 4] = "RescanJsxIdentifier";
+ })(ScanAction || (ScanAction = {}));
+ function getFormattingScanner(sourceFile, startPos, endPos) {
+ ts.Debug.assert(scanner === undefined);
+ scanner = sourceFile.languageVariant === 1 /* JSX */ ? jsxScanner : standardScanner;
+ scanner.setText(sourceFile.text);
+ scanner.setTextPos(startPos);
+ var wasNewLine = true;
+ var leadingTrivia;
+ var trailingTrivia;
+ var savedPos;
+ var lastScanAction;
+ var lastTokenInfo;
+ return {
+ advance: advance,
+ readTokenInfo: readTokenInfo,
+ isOnToken: isOnToken,
+ lastTrailingTriviaWasNewLine: function () { return wasNewLine; },
+ close: function () {
+ ts.Debug.assert(scanner !== undefined);
+ lastTokenInfo = undefined;
+ scanner.setText(undefined);
+ scanner = undefined;
+ }
+ };
+ function advance() {
+ ts.Debug.assert(scanner !== undefined);
+ lastTokenInfo = undefined;
+ var isStarted = scanner.getStartPos() !== startPos;
+ if (isStarted) {
+ if (trailingTrivia) {
+ ts.Debug.assert(trailingTrivia.length !== 0);
+ wasNewLine = ts.lastOrUndefined(trailingTrivia).kind === 4 /* NewLineTrivia */;
+ }
+ else {
+ wasNewLine = false;
+ }
+ }
+ leadingTrivia = undefined;
+ trailingTrivia = undefined;
+ if (!isStarted) {
+ scanner.scan();
+ }
+ var t;
+ var pos = scanner.getStartPos();
+ // Read leading trivia and token
+ while (pos < endPos) {
+ var t_1 = scanner.getToken();
+ if (!ts.isTrivia(t_1)) {
+ break;
+ }
+ // consume leading trivia
+ scanner.scan();
+ var item = {
+ pos: pos,
+ end: scanner.getStartPos(),
+ kind: t_1
+ };
+ pos = scanner.getStartPos();
+ if (!leadingTrivia) {
+ leadingTrivia = [];
+ }
+ leadingTrivia.push(item);
+ }
+ savedPos = scanner.getStartPos();
+ }
+ function shouldRescanGreaterThanToken(node) {
+ if (node) {
+ switch (node.kind) {
+ case 29 /* GreaterThanEqualsToken */:
+ case 64 /* GreaterThanGreaterThanEqualsToken */:
+ case 65 /* GreaterThanGreaterThanGreaterThanEqualsToken */:
+ case 45 /* GreaterThanGreaterThanGreaterThanToken */:
+ case 44 /* GreaterThanGreaterThanToken */:
+ return true;
+ }
+ }
+ return false;
+ }
+ function shouldRescanJsxIdentifier(node) {
+ if (node.parent) {
+ switch (node.parent.kind) {
+ case 238 /* JsxAttribute */:
+ case 235 /* JsxOpeningElement */:
+ case 237 /* JsxClosingElement */:
+ case 234 /* JsxSelfClosingElement */:
+ return node.kind === 69 /* Identifier */;
+ }
+ }
+ return false;
+ }
+ function shouldRescanSlashToken(container) {
+ return container.kind === 10 /* RegularExpressionLiteral */;
+ }
+ function shouldRescanTemplateToken(container) {
+ return container.kind === 13 /* TemplateMiddle */ ||
+ container.kind === 14 /* TemplateTail */;
+ }
+ function startsWithSlashToken(t) {
+ return t === 39 /* SlashToken */ || t === 61 /* SlashEqualsToken */;
+ }
+ function readTokenInfo(n) {
+ ts.Debug.assert(scanner !== undefined);
+ if (!isOnToken()) {
+ // scanner is not on the token (either advance was not called yet or scanner is already past the end position)
+ return {
+ leadingTrivia: leadingTrivia,
+ trailingTrivia: undefined,
+ token: undefined
+ };
+ }
+ // normally scanner returns the smallest available token
+ // check the kind of context node to determine if scanner should have more greedy behavior and consume more text.
+ var expectedScanAction = shouldRescanGreaterThanToken(n)
+ ? 1 /* RescanGreaterThanToken */
+ : shouldRescanSlashToken(n)
+ ? 2 /* RescanSlashToken */
+ : shouldRescanTemplateToken(n)
+ ? 3 /* RescanTemplateToken */
+ : shouldRescanJsxIdentifier(n)
+ ? 4 /* RescanJsxIdentifier */
+ : 0 /* Scan */;
+ if (lastTokenInfo && expectedScanAction === lastScanAction) {
+ // readTokenInfo was called before with the same expected scan action.
+ // No need to re-scan text, return existing 'lastTokenInfo'
+ // it is ok to call fixTokenKind here since it does not affect
+ // what portion of text is consumed. In opposize rescanning can change it,
+ // i.e. for '>=' when originally scanner eats just one character
+ // and rescanning forces it to consume more.
+ return fixTokenKind(lastTokenInfo, n);
+ }
+ if (scanner.getStartPos() !== savedPos) {
+ ts.Debug.assert(lastTokenInfo !== undefined);
+ // readTokenInfo was called before but scan action differs - rescan text
+ scanner.setTextPos(savedPos);
+ scanner.scan();
+ }
+ var currentToken = scanner.getToken();
+ if (expectedScanAction === 1 /* RescanGreaterThanToken */ && currentToken === 27 /* GreaterThanToken */) {
+ currentToken = scanner.reScanGreaterToken();
+ ts.Debug.assert(n.kind === currentToken);
+ lastScanAction = 1 /* RescanGreaterThanToken */;
+ }
+ else if (expectedScanAction === 2 /* RescanSlashToken */ && startsWithSlashToken(currentToken)) {
+ currentToken = scanner.reScanSlashToken();
+ ts.Debug.assert(n.kind === currentToken);
+ lastScanAction = 2 /* RescanSlashToken */;
+ }
+ else if (expectedScanAction === 3 /* RescanTemplateToken */ && currentToken === 16 /* CloseBraceToken */) {
+ currentToken = scanner.reScanTemplateToken();
+ lastScanAction = 3 /* RescanTemplateToken */;
+ }
+ else if (expectedScanAction === 4 /* RescanJsxIdentifier */ && currentToken === 69 /* Identifier */) {
+ currentToken = scanner.scanJsxIdentifier();
+ lastScanAction = 4 /* RescanJsxIdentifier */;
+ }
+ else {
+ lastScanAction = 0 /* Scan */;
+ }
+ var token = {
+ pos: scanner.getStartPos(),
+ end: scanner.getTextPos(),
+ kind: currentToken
+ };
+ // consume trailing trivia
+ if (trailingTrivia) {
+ trailingTrivia = undefined;
+ }
+ while (scanner.getStartPos() < endPos) {
+ currentToken = scanner.scan();
+ if (!ts.isTrivia(currentToken)) {
+ break;
+ }
+ var trivia = {
+ pos: scanner.getStartPos(),
+ end: scanner.getTextPos(),
+ kind: currentToken
+ };
+ if (!trailingTrivia) {
+ trailingTrivia = [];
+ }
+ trailingTrivia.push(trivia);
+ if (currentToken === 4 /* NewLineTrivia */) {
+ // move past new line
+ scanner.scan();
+ break;
+ }
+ }
+ lastTokenInfo = {
+ leadingTrivia: leadingTrivia,
+ trailingTrivia: trailingTrivia,
+ token: token
+ };
+ return fixTokenKind(lastTokenInfo, n);
+ }
+ function isOnToken() {
+ ts.Debug.assert(scanner !== undefined);
+ var current = (lastTokenInfo && lastTokenInfo.token.kind) || scanner.getToken();
+ var startPos = (lastTokenInfo && lastTokenInfo.token.pos) || scanner.getStartPos();
+ return startPos < endPos && current !== 1 /* EndOfFileToken */ && !ts.isTrivia(current);
+ }
+ // when containing node in the tree is token
+ // but its kind differs from the kind that was returned by the scanner,
+ // then kind needs to be fixed. This might happen in cases
+ // when parser interprets token differently, i.e keyword treated as identifier
+ function fixTokenKind(tokenInfo, container) {
+ if (ts.isToken(container) && tokenInfo.token.kind !== container.kind) {
+ tokenInfo.token.kind = container.kind;
+ }
+ return tokenInfo;
+ }
+ }
+ formatting.getFormattingScanner = getFormattingScanner;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+/// <reference path="references.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var FormattingContext = (function () {
+ function FormattingContext(sourceFile, formattingRequestKind) {
+ this.sourceFile = sourceFile;
+ this.formattingRequestKind = formattingRequestKind;
+ }
+ FormattingContext.prototype.updateContext = function (currentRange, currentTokenParent, nextRange, nextTokenParent, commonParent) {
+ ts.Debug.assert(currentRange !== undefined, "currentTokenSpan is null");
+ ts.Debug.assert(currentTokenParent !== undefined, "currentTokenParent is null");
+ ts.Debug.assert(nextRange !== undefined, "nextTokenSpan is null");
+ ts.Debug.assert(nextTokenParent !== undefined, "nextTokenParent is null");
+ ts.Debug.assert(commonParent !== undefined, "commonParent is null");
+ this.currentTokenSpan = currentRange;
+ this.currentTokenParent = currentTokenParent;
+ this.nextTokenSpan = nextRange;
+ this.nextTokenParent = nextTokenParent;
+ this.contextNode = commonParent;
+ // drop cached results
+ this.contextNodeAllOnSameLine = undefined;
+ this.nextNodeAllOnSameLine = undefined;
+ this.tokensAreOnSameLine = undefined;
+ this.contextNodeBlockIsOnOneLine = undefined;
+ this.nextNodeBlockIsOnOneLine = undefined;
+ };
+ FormattingContext.prototype.ContextNodeAllOnSameLine = function () {
+ if (this.contextNodeAllOnSameLine === undefined) {
+ this.contextNodeAllOnSameLine = this.NodeIsOnOneLine(this.contextNode);
+ }
+ return this.contextNodeAllOnSameLine;
+ };
+ FormattingContext.prototype.NextNodeAllOnSameLine = function () {
+ if (this.nextNodeAllOnSameLine === undefined) {
+ this.nextNodeAllOnSameLine = this.NodeIsOnOneLine(this.nextTokenParent);
+ }
+ return this.nextNodeAllOnSameLine;
+ };
+ FormattingContext.prototype.TokensAreOnSameLine = function () {
+ if (this.tokensAreOnSameLine === undefined) {
+ var startLine = this.sourceFile.getLineAndCharacterOfPosition(this.currentTokenSpan.pos).line;
+ var endLine = this.sourceFile.getLineAndCharacterOfPosition(this.nextTokenSpan.pos).line;
+ this.tokensAreOnSameLine = (startLine === endLine);
+ }
+ return this.tokensAreOnSameLine;
+ };
+ FormattingContext.prototype.ContextNodeBlockIsOnOneLine = function () {
+ if (this.contextNodeBlockIsOnOneLine === undefined) {
+ this.contextNodeBlockIsOnOneLine = this.BlockIsOnOneLine(this.contextNode);
+ }
+ return this.contextNodeBlockIsOnOneLine;
+ };
+ FormattingContext.prototype.NextNodeBlockIsOnOneLine = function () {
+ if (this.nextNodeBlockIsOnOneLine === undefined) {
+ this.nextNodeBlockIsOnOneLine = this.BlockIsOnOneLine(this.nextTokenParent);
+ }
+ return this.nextNodeBlockIsOnOneLine;
+ };
+ FormattingContext.prototype.NodeIsOnOneLine = function (node) {
+ var startLine = this.sourceFile.getLineAndCharacterOfPosition(node.getStart(this.sourceFile)).line;
+ var endLine = this.sourceFile.getLineAndCharacterOfPosition(node.getEnd()).line;
+ return startLine === endLine;
+ };
+ FormattingContext.prototype.BlockIsOnOneLine = function (node) {
+ var openBrace = ts.findChildOfKind(node, 15 /* OpenBraceToken */, this.sourceFile);
+ var closeBrace = ts.findChildOfKind(node, 16 /* CloseBraceToken */, this.sourceFile);
+ if (openBrace && closeBrace) {
+ var startLine = this.sourceFile.getLineAndCharacterOfPosition(openBrace.getEnd()).line;
+ var endLine = this.sourceFile.getLineAndCharacterOfPosition(closeBrace.getStart(this.sourceFile)).line;
+ return startLine === endLine;
+ }
+ return false;
+ };
+ return FormattingContext;
+ })();
+ formatting.FormattingContext = FormattingContext;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+/// <reference path="references.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ (function (FormattingRequestKind) {
+ FormattingRequestKind[FormattingRequestKind["FormatDocument"] = 0] = "FormatDocument";
+ FormattingRequestKind[FormattingRequestKind["FormatSelection"] = 1] = "FormatSelection";
+ FormattingRequestKind[FormattingRequestKind["FormatOnEnter"] = 2] = "FormatOnEnter";
+ FormattingRequestKind[FormattingRequestKind["FormatOnSemicolon"] = 3] = "FormatOnSemicolon";
+ FormattingRequestKind[FormattingRequestKind["FormatOnClosingCurlyBrace"] = 4] = "FormatOnClosingCurlyBrace";
+ })(formatting.FormattingRequestKind || (formatting.FormattingRequestKind = {}));
+ var FormattingRequestKind = formatting.FormattingRequestKind;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var Rule = (function () {
+ function Rule(Descriptor, Operation, Flag) {
+ if (Flag === void 0) { Flag = 0 /* None */; }
+ this.Descriptor = Descriptor;
+ this.Operation = Operation;
+ this.Flag = Flag;
+ }
+ Rule.prototype.toString = function () {
+ return "[desc=" + this.Descriptor + "," +
+ "operation=" + this.Operation + "," +
+ "flag=" + this.Flag + "]";
+ };
+ return Rule;
+ })();
+ formatting.Rule = Rule;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ (function (RuleAction) {
+ RuleAction[RuleAction["Ignore"] = 1] = "Ignore";
+ RuleAction[RuleAction["Space"] = 2] = "Space";
+ RuleAction[RuleAction["NewLine"] = 4] = "NewLine";
+ RuleAction[RuleAction["Delete"] = 8] = "Delete";
+ })(formatting.RuleAction || (formatting.RuleAction = {}));
+ var RuleAction = formatting.RuleAction;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var RuleDescriptor = (function () {
+ function RuleDescriptor(LeftTokenRange, RightTokenRange) {
+ this.LeftTokenRange = LeftTokenRange;
+ this.RightTokenRange = RightTokenRange;
+ }
+ RuleDescriptor.prototype.toString = function () {
+ return "[leftRange=" + this.LeftTokenRange + "," +
+ "rightRange=" + this.RightTokenRange + "]";
+ };
+ RuleDescriptor.create1 = function (left, right) {
+ return RuleDescriptor.create4(formatting.Shared.TokenRange.FromToken(left), formatting.Shared.TokenRange.FromToken(right));
+ };
+ RuleDescriptor.create2 = function (left, right) {
+ return RuleDescriptor.create4(left, formatting.Shared.TokenRange.FromToken(right));
+ };
+ RuleDescriptor.create3 = function (left, right) {
+ return RuleDescriptor.create4(formatting.Shared.TokenRange.FromToken(left), right);
+ };
+ RuleDescriptor.create4 = function (left, right) {
+ return new RuleDescriptor(left, right);
+ };
+ return RuleDescriptor;
+ })();
+ formatting.RuleDescriptor = RuleDescriptor;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ (function (RuleFlags) {
+ RuleFlags[RuleFlags["None"] = 0] = "None";
+ RuleFlags[RuleFlags["CanDeleteNewLines"] = 1] = "CanDeleteNewLines";
+ })(formatting.RuleFlags || (formatting.RuleFlags = {}));
+ var RuleFlags = formatting.RuleFlags;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var RuleOperation = (function () {
+ function RuleOperation() {
+ this.Context = null;
+ this.Action = null;
+ }
+ RuleOperation.prototype.toString = function () {
+ return "[context=" + this.Context + "," +
+ "action=" + this.Action + "]";
+ };
+ RuleOperation.create1 = function (action) {
+ return RuleOperation.create2(formatting.RuleOperationContext.Any, action);
+ };
+ RuleOperation.create2 = function (context, action) {
+ var result = new RuleOperation();
+ result.Context = context;
+ result.Action = action;
+ return result;
+ };
+ return RuleOperation;
+ })();
+ formatting.RuleOperation = RuleOperation;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var RuleOperationContext = (function () {
+ function RuleOperationContext() {
+ var funcs = [];
+ for (var _i = 0; _i < arguments.length; _i++) {
+ funcs[_i - 0] = arguments[_i];
+ }
+ this.customContextChecks = funcs;
+ }
+ RuleOperationContext.prototype.IsAny = function () {
+ return this === RuleOperationContext.Any;
+ };
+ RuleOperationContext.prototype.InContext = function (context) {
+ if (this.IsAny()) {
+ return true;
+ }
+ for (var _i = 0, _a = this.customContextChecks; _i < _a.length; _i++) {
+ var check = _a[_i];
+ if (!check(context)) {
+ return false;
+ }
+ }
+ return true;
+ };
+ RuleOperationContext.Any = new RuleOperationContext();
+ return RuleOperationContext;
+ })();
+ formatting.RuleOperationContext = RuleOperationContext;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var Rules = (function () {
+ function Rules() {
+ ///
+ /// Common Rules
+ ///
+ // Leave comments alone
+ this.IgnoreBeforeComment = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.Comments), formatting.RuleOperation.create1(1 /* Ignore */));
+ this.IgnoreAfterLineComment = new formatting.Rule(formatting.RuleDescriptor.create3(2 /* SingleLineCommentTrivia */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create1(1 /* Ignore */));
+ // Space after keyword but not before ; or : or ?
+ this.NoSpaceBeforeSemicolon = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 23 /* SemicolonToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeColon = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 54 /* ColonToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBinaryOpContext), 8 /* Delete */));
+ this.NoSpaceBeforeQuestionMark = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 53 /* QuestionToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBinaryOpContext), 8 /* Delete */));
+ this.SpaceAfterColon = new formatting.Rule(formatting.RuleDescriptor.create3(54 /* ColonToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterQuestionMarkInConditionalOperator = new formatting.Rule(formatting.RuleDescriptor.create3(53 /* QuestionToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsConditionalOperatorContext), 2 /* Space */));
+ this.NoSpaceAfterQuestionMark = new formatting.Rule(formatting.RuleDescriptor.create3(53 /* QuestionToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.SpaceAfterSemicolon = new formatting.Rule(formatting.RuleDescriptor.create3(23 /* SemicolonToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ // Space after }.
+ this.SpaceAfterCloseBrace = new formatting.Rule(formatting.RuleDescriptor.create3(16 /* CloseBraceToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsAfterCodeBlockContext), 2 /* Space */));
+ // Special case for (}, else) and (}, while) since else & while tokens are not part of the tree which makes SpaceAfterCloseBrace rule not applied
+ this.SpaceBetweenCloseBraceAndElse = new formatting.Rule(formatting.RuleDescriptor.create1(16 /* CloseBraceToken */, 80 /* ElseKeyword */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceBetweenCloseBraceAndWhile = new formatting.Rule(formatting.RuleDescriptor.create1(16 /* CloseBraceToken */, 104 /* WhileKeyword */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceAfterCloseBrace = new formatting.Rule(formatting.RuleDescriptor.create3(16 /* CloseBraceToken */, formatting.Shared.TokenRange.FromTokens([18 /* CloseParenToken */, 20 /* CloseBracketToken */, 24 /* CommaToken */, 23 /* SemicolonToken */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // No space for dot
+ this.NoSpaceBeforeDot = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 21 /* DotToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterDot = new formatting.Rule(formatting.RuleDescriptor.create3(21 /* DotToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // No space before and after indexer
+ this.NoSpaceBeforeOpenBracket = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 19 /* OpenBracketToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterCloseBracket = new formatting.Rule(formatting.RuleDescriptor.create3(20 /* CloseBracketToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBeforeBlockInFunctionDeclarationContext), 8 /* Delete */));
+ // Place a space before open brace in a function declaration
+ this.FunctionOpenBraceLeftTokenRange = formatting.Shared.TokenRange.AnyIncludingMultilineComments;
+ this.SpaceBeforeOpenBraceInFunction = new formatting.Rule(formatting.RuleDescriptor.create2(this.FunctionOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext, Rules.IsBeforeBlockContext, Rules.IsNotFormatOnEnter, Rules.IsSameLineTokenOrBeforeMultilineBlockContext), 2 /* Space */), 1 /* CanDeleteNewLines */);
+ // Place a space before open brace in a TypeScript declaration that has braces as children (class, module, enum, etc)
+ this.TypeScriptOpenBraceLeftTokenRange = formatting.Shared.TokenRange.FromTokens([69 /* Identifier */, 3 /* MultiLineCommentTrivia */, 73 /* ClassKeyword */]);
+ this.SpaceBeforeOpenBraceInTypeScriptDeclWithBlock = new formatting.Rule(formatting.RuleDescriptor.create2(this.TypeScriptOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsTypeScriptDeclWithBlockContext, Rules.IsNotFormatOnEnter, Rules.IsSameLineTokenOrBeforeMultilineBlockContext), 2 /* Space */), 1 /* CanDeleteNewLines */);
+ // Place a space before open brace in a control flow construct
+ this.ControlOpenBraceLeftTokenRange = formatting.Shared.TokenRange.FromTokens([18 /* CloseParenToken */, 3 /* MultiLineCommentTrivia */, 79 /* DoKeyword */, 100 /* TryKeyword */, 85 /* FinallyKeyword */, 80 /* ElseKeyword */]);
+ this.SpaceBeforeOpenBraceInControl = new formatting.Rule(formatting.RuleDescriptor.create2(this.ControlOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsControlDeclContext, Rules.IsNotFormatOnEnter, Rules.IsSameLineTokenOrBeforeMultilineBlockContext), 2 /* Space */), 1 /* CanDeleteNewLines */);
+ // Insert a space after { and before } in single-line contexts, but remove space from empty object literals {}.
+ this.SpaceAfterOpenBrace = new formatting.Rule(formatting.RuleDescriptor.create3(15 /* OpenBraceToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSingleLineBlockContext), 2 /* Space */));
+ this.SpaceBeforeCloseBrace = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 16 /* CloseBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSingleLineBlockContext), 2 /* Space */));
+ this.NoSpaceBetweenEmptyBraceBrackets = new formatting.Rule(formatting.RuleDescriptor.create1(15 /* OpenBraceToken */, 16 /* CloseBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsObjectContext), 8 /* Delete */));
+ // Insert new line after { and before } in multi-line contexts.
+ this.NewLineAfterOpenBraceInBlockContext = new formatting.Rule(formatting.RuleDescriptor.create3(15 /* OpenBraceToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsMultilineBlockContext), 4 /* NewLine */));
+ // For functions and control block place } on a new line [multi-line rule]
+ this.NewLineBeforeCloseBraceInBlockContext = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.AnyIncludingMultilineComments, 16 /* CloseBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsMultilineBlockContext), 4 /* NewLine */));
+ // Special handling of unary operators.
+ // Prefix operators generally shouldn't have a space between
+ // them and their target unary expression.
+ this.NoSpaceAfterUnaryPrefixOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.UnaryPrefixOperators, formatting.Shared.TokenRange.UnaryPrefixExpressions), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBinaryOpContext), 8 /* Delete */));
+ this.NoSpaceAfterUnaryPreincrementOperator = new formatting.Rule(formatting.RuleDescriptor.create3(41 /* PlusPlusToken */, formatting.Shared.TokenRange.UnaryPreincrementExpressions), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterUnaryPredecrementOperator = new formatting.Rule(formatting.RuleDescriptor.create3(42 /* MinusMinusToken */, formatting.Shared.TokenRange.UnaryPredecrementExpressions), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeUnaryPostincrementOperator = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.UnaryPostincrementExpressions, 41 /* PlusPlusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeUnaryPostdecrementOperator = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.UnaryPostdecrementExpressions, 42 /* MinusMinusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // More unary operator special-casing.
+ // DevDiv 181814: Be careful when removing leading whitespace
+ // around unary operators. Examples:
+ // 1 - -2 --X--> 1--2
+ // a + ++b --X--> a+++b
+ this.SpaceAfterPostincrementWhenFollowedByAdd = new formatting.Rule(formatting.RuleDescriptor.create1(41 /* PlusPlusToken */, 35 /* PlusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterAddWhenFollowedByUnaryPlus = new formatting.Rule(formatting.RuleDescriptor.create1(35 /* PlusToken */, 35 /* PlusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterAddWhenFollowedByPreincrement = new formatting.Rule(formatting.RuleDescriptor.create1(35 /* PlusToken */, 41 /* PlusPlusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterPostdecrementWhenFollowedBySubtract = new formatting.Rule(formatting.RuleDescriptor.create1(42 /* MinusMinusToken */, 36 /* MinusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterSubtractWhenFollowedByUnaryMinus = new formatting.Rule(formatting.RuleDescriptor.create1(36 /* MinusToken */, 36 /* MinusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterSubtractWhenFollowedByPredecrement = new formatting.Rule(formatting.RuleDescriptor.create1(36 /* MinusToken */, 42 /* MinusMinusToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.NoSpaceBeforeComma = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 24 /* CommaToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.SpaceAfterCertainKeywords = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([102 /* VarKeyword */, 98 /* ThrowKeyword */, 92 /* NewKeyword */, 78 /* DeleteKeyword */, 94 /* ReturnKeyword */, 101 /* TypeOfKeyword */, 119 /* AwaitKeyword */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceAfterLetConstInVariableDeclaration = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([108 /* LetKeyword */, 74 /* ConstKeyword */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsStartOfVariableDeclarationList), 2 /* Space */));
+ this.NoSpaceBeforeOpenParenInFuncCall = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsFunctionCallOrNewContext, Rules.IsPreviousTokenNotComma), 8 /* Delete */));
+ this.SpaceAfterFunctionInFuncDecl = new formatting.Rule(formatting.RuleDescriptor.create3(87 /* FunctionKeyword */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext), 2 /* Space */));
+ this.NoSpaceBeforeOpenParenInFuncDecl = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsFunctionDeclContext), 8 /* Delete */));
+ this.SpaceAfterVoidOperator = new formatting.Rule(formatting.RuleDescriptor.create3(103 /* VoidKeyword */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsVoidOpContext), 2 /* Space */));
+ this.NoSpaceBetweenReturnAndSemicolon = new formatting.Rule(formatting.RuleDescriptor.create1(94 /* ReturnKeyword */, 23 /* SemicolonToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Add a space between statements. All keywords except (do,else,case) has open/close parens after them.
+ // So, we have a rule to add a space for [),Any], [do,Any], [else,Any], and [case,Any]
+ this.SpaceBetweenStatements = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([18 /* CloseParenToken */, 79 /* DoKeyword */, 80 /* ElseKeyword */, 71 /* CaseKeyword */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotForContext), 2 /* Space */));
+ // This low-pri rule takes care of "try {" and "finally {" in case the rule SpaceBeforeOpenBraceInControl didn't execute on FormatOnEnter.
+ this.SpaceAfterTryFinally = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.FromTokens([100 /* TryKeyword */, 85 /* FinallyKeyword */]), 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ // get x() {}
+ // set x(val) {}
+ this.SpaceAfterGetSetInMember = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.FromTokens([123 /* GetKeyword */, 129 /* SetKeyword */]), 69 /* Identifier */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext), 2 /* Space */));
+ // Special case for binary operators (that are keywords). For these we have to add a space and shouldn't follow any user options.
+ this.SpaceBeforeBinaryKeywordOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.BinaryKeywordOperators), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterBinaryKeywordOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.BinaryKeywordOperators, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ // TypeScript-specific higher priority rules
+ // Treat constructor as an identifier in a function declaration, and remove spaces between constructor and following left parentheses
+ this.NoSpaceAfterConstructor = new formatting.Rule(formatting.RuleDescriptor.create1(121 /* ConstructorKeyword */, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Use of module as a function call. e.g.: import m2 = module("m2");
+ this.NoSpaceAfterModuleImport = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.FromTokens([125 /* ModuleKeyword */, 127 /* RequireKeyword */]), 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Add a space around certain TypeScript keywords
+ this.SpaceAfterCertainTypeScriptKeywords = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([115 /* AbstractKeyword */, 73 /* ClassKeyword */, 122 /* DeclareKeyword */, 77 /* DefaultKeyword */, 81 /* EnumKeyword */, 82 /* ExportKeyword */, 83 /* ExtendsKeyword */, 123 /* GetKeyword */, 106 /* ImplementsKeyword */, 89 /* ImportKeyword */, 107 /* InterfaceKeyword */, 125 /* ModuleKeyword */, 126 /* NamespaceKeyword */, 110 /* PrivateKeyword */, 112 /* PublicKeyword */, 111 /* ProtectedKeyword */, 129 /* SetKeyword */, 113 /* StaticKeyword */, 132 /* TypeKeyword */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceBeforeCertainTypeScriptKeywords = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.FromTokens([83 /* ExtendsKeyword */, 106 /* ImplementsKeyword */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ // Treat string literals in module names as identifiers, and add a space between the literal and the opening Brace braces, e.g.: module "m2" {
+ this.SpaceAfterModuleName = new formatting.Rule(formatting.RuleDescriptor.create1(9 /* StringLiteral */, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsModuleDeclContext), 2 /* Space */));
+ // Lambda expressions
+ this.SpaceAfterArrow = new formatting.Rule(formatting.RuleDescriptor.create3(34 /* EqualsGreaterThanToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ // Optional parameters and let args
+ this.NoSpaceAfterEllipsis = new formatting.Rule(formatting.RuleDescriptor.create1(22 /* DotDotDotToken */, 69 /* Identifier */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterOptionalParameters = new formatting.Rule(formatting.RuleDescriptor.create3(53 /* QuestionToken */, formatting.Shared.TokenRange.FromTokens([18 /* CloseParenToken */, 24 /* CommaToken */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsNotBinaryOpContext), 8 /* Delete */));
+ // generics and type assertions
+ this.NoSpaceBeforeOpenAngularBracket = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.TypeNames, 25 /* LessThanToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeArgumentOrParameterOrAssertionContext), 8 /* Delete */));
+ this.NoSpaceBetweenCloseParenAndAngularBracket = new formatting.Rule(formatting.RuleDescriptor.create1(18 /* CloseParenToken */, 25 /* LessThanToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeArgumentOrParameterOrAssertionContext), 8 /* Delete */));
+ this.NoSpaceAfterOpenAngularBracket = new formatting.Rule(formatting.RuleDescriptor.create3(25 /* LessThanToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeArgumentOrParameterOrAssertionContext), 8 /* Delete */));
+ this.NoSpaceBeforeCloseAngularBracket = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 27 /* GreaterThanToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeArgumentOrParameterOrAssertionContext), 8 /* Delete */));
+ this.NoSpaceAfterCloseAngularBracket = new formatting.Rule(formatting.RuleDescriptor.create3(27 /* GreaterThanToken */, formatting.Shared.TokenRange.FromTokens([17 /* OpenParenToken */, 19 /* OpenBracketToken */, 27 /* GreaterThanToken */, 24 /* CommaToken */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeArgumentOrParameterOrAssertionContext), 8 /* Delete */));
+ this.NoSpaceAfterTypeAssertion = new formatting.Rule(formatting.RuleDescriptor.create3(27 /* GreaterThanToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsTypeAssertionContext), 8 /* Delete */));
+ // Remove spaces in empty interface literals. e.g.: x: {}
+ this.NoSpaceBetweenEmptyInterfaceBraceBrackets = new formatting.Rule(formatting.RuleDescriptor.create1(15 /* OpenBraceToken */, 16 /* CloseBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsObjectTypeContext), 8 /* Delete */));
+ // decorators
+ this.SpaceBeforeAt = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 55 /* AtToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceAfterAt = new formatting.Rule(formatting.RuleDescriptor.create3(55 /* AtToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.SpaceAfterDecorator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.FromTokens([115 /* AbstractKeyword */, 69 /* Identifier */, 82 /* ExportKeyword */, 77 /* DefaultKeyword */, 73 /* ClassKeyword */, 113 /* StaticKeyword */, 112 /* PublicKeyword */, 110 /* PrivateKeyword */, 111 /* ProtectedKeyword */, 123 /* GetKeyword */, 129 /* SetKeyword */, 19 /* OpenBracketToken */, 37 /* AsteriskToken */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsEndOfDecoratorContextOnSameLine), 2 /* Space */));
+ this.NoSpaceBetweenFunctionKeywordAndStar = new formatting.Rule(formatting.RuleDescriptor.create1(87 /* FunctionKeyword */, 37 /* AsteriskToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclarationOrFunctionExpressionContext), 8 /* Delete */));
+ this.SpaceAfterStarInGeneratorDeclaration = new formatting.Rule(formatting.RuleDescriptor.create3(37 /* AsteriskToken */, formatting.Shared.TokenRange.FromTokens([69 /* Identifier */, 17 /* OpenParenToken */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclarationOrFunctionExpressionContext), 2 /* Space */));
+ this.NoSpaceBetweenYieldKeywordAndStar = new formatting.Rule(formatting.RuleDescriptor.create1(114 /* YieldKeyword */, 37 /* AsteriskToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsYieldOrYieldStarWithOperand), 8 /* Delete */));
+ this.SpaceBetweenYieldOrYieldStarAndOperand = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([114 /* YieldKeyword */, 37 /* AsteriskToken */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsYieldOrYieldStarWithOperand), 2 /* Space */));
+ // Async-await
+ this.SpaceBetweenAsyncAndOpenParen = new formatting.Rule(formatting.RuleDescriptor.create1(118 /* AsyncKeyword */, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsArrowFunctionContext, Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceBetweenAsyncAndFunctionKeyword = new formatting.Rule(formatting.RuleDescriptor.create1(118 /* AsyncKeyword */, 87 /* FunctionKeyword */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ // template string
+ this.SpaceBetweenTagAndTemplateString = new formatting.Rule(formatting.RuleDescriptor.create3(69 /* Identifier */, formatting.Shared.TokenRange.FromTokens([11 /* NoSubstitutionTemplateLiteral */, 12 /* TemplateHead */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceAfterTemplateHeadAndMiddle = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.FromTokens([12 /* TemplateHead */, 13 /* TemplateMiddle */]), formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeTemplateMiddleAndTail = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.FromTokens([13 /* TemplateMiddle */, 14 /* TemplateTail */])), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // These rules are higher in priority than user-configurable rules.
+ this.HighPriorityCommonRules =
+ [
+ this.IgnoreBeforeComment, this.IgnoreAfterLineComment,
+ this.NoSpaceBeforeColon, this.SpaceAfterColon, this.NoSpaceBeforeQuestionMark, this.SpaceAfterQuestionMarkInConditionalOperator,
+ this.NoSpaceAfterQuestionMark,
+ this.NoSpaceBeforeDot, this.NoSpaceAfterDot,
+ this.NoSpaceAfterUnaryPrefixOperator,
+ this.NoSpaceAfterUnaryPreincrementOperator, this.NoSpaceAfterUnaryPredecrementOperator,
+ this.NoSpaceBeforeUnaryPostincrementOperator, this.NoSpaceBeforeUnaryPostdecrementOperator,
+ this.SpaceAfterPostincrementWhenFollowedByAdd,
+ this.SpaceAfterAddWhenFollowedByUnaryPlus, this.SpaceAfterAddWhenFollowedByPreincrement,
+ this.SpaceAfterPostdecrementWhenFollowedBySubtract,
+ this.SpaceAfterSubtractWhenFollowedByUnaryMinus, this.SpaceAfterSubtractWhenFollowedByPredecrement,
+ this.NoSpaceAfterCloseBrace,
+ this.SpaceAfterOpenBrace, this.SpaceBeforeCloseBrace, this.NewLineBeforeCloseBraceInBlockContext,
+ this.SpaceAfterCloseBrace, this.SpaceBetweenCloseBraceAndElse, this.SpaceBetweenCloseBraceAndWhile, this.NoSpaceBetweenEmptyBraceBrackets,
+ this.NoSpaceBetweenFunctionKeywordAndStar, this.SpaceAfterStarInGeneratorDeclaration,
+ this.SpaceAfterFunctionInFuncDecl, this.NewLineAfterOpenBraceInBlockContext, this.SpaceAfterGetSetInMember,
+ this.NoSpaceBetweenYieldKeywordAndStar, this.SpaceBetweenYieldOrYieldStarAndOperand,
+ this.NoSpaceBetweenReturnAndSemicolon,
+ this.SpaceAfterCertainKeywords,
+ this.SpaceAfterLetConstInVariableDeclaration,
+ this.NoSpaceBeforeOpenParenInFuncCall,
+ this.SpaceBeforeBinaryKeywordOperator, this.SpaceAfterBinaryKeywordOperator,
+ this.SpaceAfterVoidOperator,
+ this.SpaceBetweenAsyncAndOpenParen, this.SpaceBetweenAsyncAndFunctionKeyword,
+ this.SpaceBetweenTagAndTemplateString, this.NoSpaceAfterTemplateHeadAndMiddle, this.NoSpaceBeforeTemplateMiddleAndTail,
+ // TypeScript-specific rules
+ this.NoSpaceAfterConstructor, this.NoSpaceAfterModuleImport,
+ this.SpaceAfterCertainTypeScriptKeywords, this.SpaceBeforeCertainTypeScriptKeywords,
+ this.SpaceAfterModuleName,
+ this.SpaceAfterArrow,
+ this.NoSpaceAfterEllipsis,
+ this.NoSpaceAfterOptionalParameters,
+ this.NoSpaceBetweenEmptyInterfaceBraceBrackets,
+ this.NoSpaceBeforeOpenAngularBracket,
+ this.NoSpaceBetweenCloseParenAndAngularBracket,
+ this.NoSpaceAfterOpenAngularBracket,
+ this.NoSpaceBeforeCloseAngularBracket,
+ this.NoSpaceAfterCloseAngularBracket,
+ this.NoSpaceAfterTypeAssertion,
+ this.SpaceBeforeAt,
+ this.NoSpaceAfterAt,
+ this.SpaceAfterDecorator,
+ ];
+ // These rules are lower in priority than user-configurable rules.
+ this.LowPriorityCommonRules =
+ [
+ this.NoSpaceBeforeSemicolon,
+ this.SpaceBeforeOpenBraceInControl, this.SpaceBeforeOpenBraceInFunction, this.SpaceBeforeOpenBraceInTypeScriptDeclWithBlock,
+ this.NoSpaceBeforeComma,
+ this.NoSpaceBeforeOpenBracket,
+ this.NoSpaceAfterCloseBracket,
+ this.SpaceAfterSemicolon,
+ this.NoSpaceBeforeOpenParenInFuncDecl,
+ this.SpaceBetweenStatements, this.SpaceAfterTryFinally
+ ];
+ ///
+ /// Rules controlled by user options
+ ///
+ // Insert space after comma delimiter
+ this.SpaceAfterComma = new formatting.Rule(formatting.RuleDescriptor.create3(24 /* CommaToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceAfterComma = new formatting.Rule(formatting.RuleDescriptor.create3(24 /* CommaToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Insert space before and after binary operators
+ this.SpaceBeforeBinaryOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.BinaryOperators), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.SpaceAfterBinaryOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.BinaryOperators, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 2 /* Space */));
+ this.NoSpaceBeforeBinaryOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.Any, formatting.Shared.TokenRange.BinaryOperators), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 8 /* Delete */));
+ this.NoSpaceAfterBinaryOperator = new formatting.Rule(formatting.RuleDescriptor.create4(formatting.Shared.TokenRange.BinaryOperators, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsBinaryOpContext), 8 /* Delete */));
+ // Insert space after keywords in control flow statements
+ this.SpaceAfterKeywordInControl = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Keywords, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsControlDeclContext), 2 /* Space */));
+ this.NoSpaceAfterKeywordInControl = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Keywords, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsControlDeclContext), 8 /* Delete */));
+ // Open Brace braces after function
+ //TypeScript: Function can have return types, which can be made of tons of different token kinds
+ this.NewLineBeforeOpenBraceInFunction = new formatting.Rule(formatting.RuleDescriptor.create2(this.FunctionOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext, Rules.IsBeforeMultilineBlockContext), 4 /* NewLine */), 1 /* CanDeleteNewLines */);
+ // Open Brace braces after TypeScript module/class/interface
+ this.NewLineBeforeOpenBraceInTypeScriptDeclWithBlock = new formatting.Rule(formatting.RuleDescriptor.create2(this.TypeScriptOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsTypeScriptDeclWithBlockContext, Rules.IsBeforeMultilineBlockContext), 4 /* NewLine */), 1 /* CanDeleteNewLines */);
+ // Open Brace braces after control block
+ this.NewLineBeforeOpenBraceInControl = new formatting.Rule(formatting.RuleDescriptor.create2(this.ControlOpenBraceLeftTokenRange, 15 /* OpenBraceToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsControlDeclContext, Rules.IsBeforeMultilineBlockContext), 4 /* NewLine */), 1 /* CanDeleteNewLines */);
+ // Insert space after semicolon in for statement
+ this.SpaceAfterSemicolonInFor = new formatting.Rule(formatting.RuleDescriptor.create3(23 /* SemicolonToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsForContext), 2 /* Space */));
+ this.NoSpaceAfterSemicolonInFor = new formatting.Rule(formatting.RuleDescriptor.create3(23 /* SemicolonToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext, Rules.IsForContext), 8 /* Delete */));
+ // Insert space after opening and before closing nonempty parenthesis
+ this.SpaceAfterOpenParen = new formatting.Rule(formatting.RuleDescriptor.create3(17 /* OpenParenToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceBeforeCloseParen = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 18 /* CloseParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceBetweenParens = new formatting.Rule(formatting.RuleDescriptor.create1(17 /* OpenParenToken */, 18 /* CloseParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterOpenParen = new formatting.Rule(formatting.RuleDescriptor.create3(17 /* OpenParenToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeCloseParen = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 18 /* CloseParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Insert space after opening and before closing nonempty brackets
+ this.SpaceAfterOpenBracket = new formatting.Rule(formatting.RuleDescriptor.create3(19 /* OpenBracketToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.SpaceBeforeCloseBracket = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 20 /* CloseBracketToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 2 /* Space */));
+ this.NoSpaceBetweenBrackets = new formatting.Rule(formatting.RuleDescriptor.create1(19 /* OpenBracketToken */, 20 /* CloseBracketToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceAfterOpenBracket = new formatting.Rule(formatting.RuleDescriptor.create3(19 /* OpenBracketToken */, formatting.Shared.TokenRange.Any), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ this.NoSpaceBeforeCloseBracket = new formatting.Rule(formatting.RuleDescriptor.create2(formatting.Shared.TokenRange.Any, 20 /* CloseBracketToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsSameLineTokenContext), 8 /* Delete */));
+ // Insert space after function keyword for anonymous functions
+ this.SpaceAfterAnonymousFunctionKeyword = new formatting.Rule(formatting.RuleDescriptor.create1(87 /* FunctionKeyword */, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext), 2 /* Space */));
+ this.NoSpaceAfterAnonymousFunctionKeyword = new formatting.Rule(formatting.RuleDescriptor.create1(87 /* FunctionKeyword */, 17 /* OpenParenToken */), formatting.RuleOperation.create2(new formatting.RuleOperationContext(Rules.IsFunctionDeclContext), 8 /* Delete */));
+ }
+ Rules.prototype.getRuleName = function (rule) {
+ var o = this;
+ for (var name_31 in o) {
+ if (o[name_31] === rule) {
+ return name_31;
+ }
+ }
+ throw new Error("Unknown rule");
+ };
+ ///
+ /// Contexts
+ ///
+ Rules.IsForContext = function (context) {
+ return context.contextNode.kind === 199 /* ForStatement */;
+ };
+ Rules.IsNotForContext = function (context) {
+ return !Rules.IsForContext(context);
+ };
+ Rules.IsBinaryOpContext = function (context) {
+ switch (context.contextNode.kind) {
+ case 181 /* BinaryExpression */:
+ case 182 /* ConditionalExpression */:
+ case 189 /* AsExpression */:
+ case 150 /* TypePredicate */:
+ case 158 /* UnionType */:
+ case 159 /* IntersectionType */:
+ return true;
+ // equals in binding elements: function foo([[x, y] = [1, 2]])
+ case 163 /* BindingElement */:
+ // equals in type X = ...
+ case 216 /* TypeAliasDeclaration */:
+ // equal in import a = module('a');
+ case 221 /* ImportEqualsDeclaration */:
+ // equal in let a = 0;
+ case 211 /* VariableDeclaration */:
+ // equal in p = 0;
+ case 138 /* Parameter */:
+ case 247 /* EnumMember */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return context.currentTokenSpan.kind === 56 /* EqualsToken */ || context.nextTokenSpan.kind === 56 /* EqualsToken */;
+ // "in" keyword in for (let x in []) { }
+ case 200 /* ForInStatement */:
+ return context.currentTokenSpan.kind === 90 /* InKeyword */ || context.nextTokenSpan.kind === 90 /* InKeyword */;
+ // Technically, "of" is not a binary operator, but format it the same way as "in"
+ case 201 /* ForOfStatement */:
+ return context.currentTokenSpan.kind === 134 /* OfKeyword */ || context.nextTokenSpan.kind === 134 /* OfKeyword */;
+ }
+ return false;
+ };
+ Rules.IsNotBinaryOpContext = function (context) {
+ return !Rules.IsBinaryOpContext(context);
+ };
+ Rules.IsConditionalOperatorContext = function (context) {
+ return context.contextNode.kind === 182 /* ConditionalExpression */;
+ };
+ Rules.IsSameLineTokenOrBeforeMultilineBlockContext = function (context) {
+ //// This check is mainly used inside SpaceBeforeOpenBraceInControl and SpaceBeforeOpenBraceInFunction.
+ ////
+ //// Ex:
+ //// if (1) { ....
+ //// * ) and { are on the same line so apply the rule. Here we don't care whether it's same or multi block context
+ ////
+ //// Ex:
+ //// if (1)
+ //// { ... }
+ //// * ) and { are on differnet lines. We only need to format if the block is multiline context. So in this case we don't format.
+ ////
+ //// Ex:
+ //// if (1)
+ //// { ...
+ //// }
+ //// * ) and { are on differnet lines. We only need to format if the block is multiline context. So in this case we format.
+ return context.TokensAreOnSameLine() || Rules.IsBeforeMultilineBlockContext(context);
+ };
+ // This check is done before an open brace in a control construct, a function, or a typescript block declaration
+ Rules.IsBeforeMultilineBlockContext = function (context) {
+ return Rules.IsBeforeBlockContext(context) && !(context.NextNodeAllOnSameLine() || context.NextNodeBlockIsOnOneLine());
+ };
+ Rules.IsMultilineBlockContext = function (context) {
+ return Rules.IsBlockContext(context) && !(context.ContextNodeAllOnSameLine() || context.ContextNodeBlockIsOnOneLine());
+ };
+ Rules.IsSingleLineBlockContext = function (context) {
+ return Rules.IsBlockContext(context) && (context.ContextNodeAllOnSameLine() || context.ContextNodeBlockIsOnOneLine());
+ };
+ Rules.IsBlockContext = function (context) {
+ return Rules.NodeIsBlockContext(context.contextNode);
+ };
+ Rules.IsBeforeBlockContext = function (context) {
+ return Rules.NodeIsBlockContext(context.nextTokenParent);
+ };
+ // IMPORTANT!!! This method must return true ONLY for nodes with open and close braces as immediate children
+ Rules.NodeIsBlockContext = function (node) {
+ if (Rules.NodeIsTypeScriptDeclWithBlockContext(node)) {
+ // This means we are in a context that looks like a block to the user, but in the grammar is actually not a node (it's a class, module, enum, object type literal, etc).
+ return true;
+ }
+ switch (node.kind) {
+ case 192 /* Block */:
+ case 220 /* CaseBlock */:
+ case 165 /* ObjectLiteralExpression */:
+ case 219 /* ModuleBlock */:
+ return true;
+ }
+ return false;
+ };
+ Rules.IsFunctionDeclContext = function (context) {
+ switch (context.contextNode.kind) {
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ //case SyntaxKind.MemberFunctionDeclaration:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ ///case SyntaxKind.MethodSignature:
+ case 147 /* CallSignature */:
+ case 173 /* FunctionExpression */:
+ case 144 /* Constructor */:
+ case 174 /* ArrowFunction */:
+ //case SyntaxKind.ConstructorDeclaration:
+ //case SyntaxKind.SimpleArrowFunctionExpression:
+ //case SyntaxKind.ParenthesizedArrowFunctionExpression:
+ case 215 /* InterfaceDeclaration */:
+ return true;
+ }
+ return false;
+ };
+ Rules.IsFunctionDeclarationOrFunctionExpressionContext = function (context) {
+ return context.contextNode.kind === 213 /* FunctionDeclaration */ || context.contextNode.kind === 173 /* FunctionExpression */;
+ };
+ Rules.IsTypeScriptDeclWithBlockContext = function (context) {
+ return Rules.NodeIsTypeScriptDeclWithBlockContext(context.contextNode);
+ };
+ Rules.NodeIsTypeScriptDeclWithBlockContext = function (node) {
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 155 /* TypeLiteral */:
+ case 218 /* ModuleDeclaration */:
+ return true;
+ }
+ return false;
+ };
+ Rules.IsAfterCodeBlockContext = function (context) {
+ switch (context.currentTokenParent.kind) {
+ case 214 /* ClassDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 192 /* Block */:
+ case 244 /* CatchClause */:
+ case 219 /* ModuleBlock */:
+ case 206 /* SwitchStatement */:
+ return true;
+ }
+ return false;
+ };
+ Rules.IsControlDeclContext = function (context) {
+ switch (context.contextNode.kind) {
+ case 196 /* IfStatement */:
+ case 206 /* SwitchStatement */:
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 198 /* WhileStatement */:
+ case 209 /* TryStatement */:
+ case 197 /* DoStatement */:
+ case 205 /* WithStatement */:
+ // TODO
+ // case SyntaxKind.ElseClause:
+ case 244 /* CatchClause */:
+ return true;
+ default:
+ return false;
+ }
+ };
+ Rules.IsObjectContext = function (context) {
+ return context.contextNode.kind === 165 /* ObjectLiteralExpression */;
+ };
+ Rules.IsFunctionCallContext = function (context) {
+ return context.contextNode.kind === 168 /* CallExpression */;
+ };
+ Rules.IsNewContext = function (context) {
+ return context.contextNode.kind === 169 /* NewExpression */;
+ };
+ Rules.IsFunctionCallOrNewContext = function (context) {
+ return Rules.IsFunctionCallContext(context) || Rules.IsNewContext(context);
+ };
+ Rules.IsPreviousTokenNotComma = function (context) {
+ return context.currentTokenSpan.kind !== 24 /* CommaToken */;
+ };
+ Rules.IsArrowFunctionContext = function (context) {
+ return context.contextNode.kind === 174 /* ArrowFunction */;
+ };
+ Rules.IsSameLineTokenContext = function (context) {
+ return context.TokensAreOnSameLine();
+ };
+ Rules.IsNotBeforeBlockInFunctionDeclarationContext = function (context) {
+ return !Rules.IsFunctionDeclContext(context) && !Rules.IsBeforeBlockContext(context);
+ };
+ Rules.IsEndOfDecoratorContextOnSameLine = function (context) {
+ return context.TokensAreOnSameLine() &&
+ context.contextNode.decorators &&
+ Rules.NodeIsInDecoratorContext(context.currentTokenParent) &&
+ !Rules.NodeIsInDecoratorContext(context.nextTokenParent);
+ };
+ Rules.NodeIsInDecoratorContext = function (node) {
+ while (ts.isExpression(node)) {
+ node = node.parent;
+ }
+ return node.kind === 139 /* Decorator */;
+ };
+ Rules.IsStartOfVariableDeclarationList = function (context) {
+ return context.currentTokenParent.kind === 212 /* VariableDeclarationList */ &&
+ context.currentTokenParent.getStart(context.sourceFile) === context.currentTokenSpan.pos;
+ };
+ Rules.IsNotFormatOnEnter = function (context) {
+ return context.formattingRequestKind !== 2 /* FormatOnEnter */;
+ };
+ Rules.IsModuleDeclContext = function (context) {
+ return context.contextNode.kind === 218 /* ModuleDeclaration */;
+ };
+ Rules.IsObjectTypeContext = function (context) {
+ return context.contextNode.kind === 155 /* TypeLiteral */; // && context.contextNode.parent.kind !== SyntaxKind.InterfaceDeclaration;
+ };
+ Rules.IsTypeArgumentOrParameterOrAssertion = function (token, parent) {
+ if (token.kind !== 25 /* LessThanToken */ && token.kind !== 27 /* GreaterThanToken */) {
+ return false;
+ }
+ switch (parent.kind) {
+ case 151 /* TypeReference */:
+ case 171 /* TypeAssertionExpression */:
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 215 /* InterfaceDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 188 /* ExpressionWithTypeArguments */:
+ return true;
+ default:
+ return false;
+ }
+ };
+ Rules.IsTypeArgumentOrParameterOrAssertionContext = function (context) {
+ return Rules.IsTypeArgumentOrParameterOrAssertion(context.currentTokenSpan, context.currentTokenParent) ||
+ Rules.IsTypeArgumentOrParameterOrAssertion(context.nextTokenSpan, context.nextTokenParent);
+ };
+ Rules.IsTypeAssertionContext = function (context) {
+ return context.contextNode.kind === 171 /* TypeAssertionExpression */;
+ };
+ Rules.IsVoidOpContext = function (context) {
+ return context.currentTokenSpan.kind === 103 /* VoidKeyword */ && context.currentTokenParent.kind === 177 /* VoidExpression */;
+ };
+ Rules.IsYieldOrYieldStarWithOperand = function (context) {
+ return context.contextNode.kind === 184 /* YieldExpression */ && context.contextNode.expression !== undefined;
+ };
+ return Rules;
+ })();
+ formatting.Rules = Rules;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var RulesMap = (function () {
+ function RulesMap() {
+ this.map = [];
+ this.mapRowLength = 0;
+ }
+ RulesMap.create = function (rules) {
+ var result = new RulesMap();
+ result.Initialize(rules);
+ return result;
+ };
+ RulesMap.prototype.Initialize = function (rules) {
+ this.mapRowLength = 134 /* LastToken */ + 1;
+ this.map = new Array(this.mapRowLength * this.mapRowLength); //new Array<RulesBucket>(this.mapRowLength * this.mapRowLength);
+ // This array is used only during construction of the rulesbucket in the map
+ var rulesBucketConstructionStateList = new Array(this.map.length); //new Array<RulesBucketConstructionState>(this.map.length);
+ this.FillRules(rules, rulesBucketConstructionStateList);
+ return this.map;
+ };
+ RulesMap.prototype.FillRules = function (rules, rulesBucketConstructionStateList) {
+ var _this = this;
+ rules.forEach(function (rule) {
+ _this.FillRule(rule, rulesBucketConstructionStateList);
+ });
+ };
+ RulesMap.prototype.GetRuleBucketIndex = function (row, column) {
+ var rulesBucketIndex = (row * this.mapRowLength) + column;
+ //Debug.Assert(rulesBucketIndex < this.map.Length, "Trying to access an index outside the array.");
+ return rulesBucketIndex;
+ };
+ RulesMap.prototype.FillRule = function (rule, rulesBucketConstructionStateList) {
+ var _this = this;
+ var specificRule = rule.Descriptor.LeftTokenRange !== formatting.Shared.TokenRange.Any &&
+ rule.Descriptor.RightTokenRange !== formatting.Shared.TokenRange.Any;
+ rule.Descriptor.LeftTokenRange.GetTokens().forEach(function (left) {
+ rule.Descriptor.RightTokenRange.GetTokens().forEach(function (right) {
+ var rulesBucketIndex = _this.GetRuleBucketIndex(left, right);
+ var rulesBucket = _this.map[rulesBucketIndex];
+ if (rulesBucket === undefined) {
+ rulesBucket = _this.map[rulesBucketIndex] = new RulesBucket();
+ }
+ rulesBucket.AddRule(rule, specificRule, rulesBucketConstructionStateList, rulesBucketIndex);
+ });
+ });
+ };
+ RulesMap.prototype.GetRule = function (context) {
+ var bucketIndex = this.GetRuleBucketIndex(context.currentTokenSpan.kind, context.nextTokenSpan.kind);
+ var bucket = this.map[bucketIndex];
+ if (bucket != null) {
+ for (var _i = 0, _a = bucket.Rules(); _i < _a.length; _i++) {
+ var rule = _a[_i];
+ if (rule.Operation.Context.InContext(context)) {
+ return rule;
+ }
+ }
+ }
+ return null;
+ };
+ return RulesMap;
+ })();
+ formatting.RulesMap = RulesMap;
+ var MaskBitSize = 5;
+ var Mask = 0x1f;
+ (function (RulesPosition) {
+ RulesPosition[RulesPosition["IgnoreRulesSpecific"] = 0] = "IgnoreRulesSpecific";
+ RulesPosition[RulesPosition["IgnoreRulesAny"] = MaskBitSize * 1] = "IgnoreRulesAny";
+ RulesPosition[RulesPosition["ContextRulesSpecific"] = MaskBitSize * 2] = "ContextRulesSpecific";
+ RulesPosition[RulesPosition["ContextRulesAny"] = MaskBitSize * 3] = "ContextRulesAny";
+ RulesPosition[RulesPosition["NoContextRulesSpecific"] = MaskBitSize * 4] = "NoContextRulesSpecific";
+ RulesPosition[RulesPosition["NoContextRulesAny"] = MaskBitSize * 5] = "NoContextRulesAny";
+ })(formatting.RulesPosition || (formatting.RulesPosition = {}));
+ var RulesPosition = formatting.RulesPosition;
+ var RulesBucketConstructionState = (function () {
+ function RulesBucketConstructionState() {
+ //// The Rules list contains all the inserted rules into a rulebucket in the following order:
+ //// 1- Ignore rules with specific token combination
+ //// 2- Ignore rules with any token combination
+ //// 3- Context rules with specific token combination
+ //// 4- Context rules with any token combination
+ //// 5- Non-context rules with specific token combination
+ //// 6- Non-context rules with any token combination
+ ////
+ //// The member rulesInsertionIndexBitmap is used to describe the number of rules
+ //// in each sub-bucket (above) hence can be used to know the index of where to insert
+ //// the next rule. It's a bitmap which contains 6 different sections each is given 5 bits.
+ ////
+ //// Example:
+ //// In order to insert a rule to the end of sub-bucket (3), we get the index by adding
+ //// the values in the bitmap segments 3rd, 2nd, and 1st.
+ this.rulesInsertionIndexBitmap = 0;
+ }
+ RulesBucketConstructionState.prototype.GetInsertionIndex = function (maskPosition) {
+ var index = 0;
+ var pos = 0;
+ var indexBitmap = this.rulesInsertionIndexBitmap;
+ while (pos <= maskPosition) {
+ index += (indexBitmap & Mask);
+ indexBitmap >>= MaskBitSize;
+ pos += MaskBitSize;
+ }
+ return index;
+ };
+ RulesBucketConstructionState.prototype.IncreaseInsertionIndex = function (maskPosition) {
+ var value = (this.rulesInsertionIndexBitmap >> maskPosition) & Mask;
+ value++;
+ ts.Debug.assert((value & Mask) === value, "Adding more rules into the sub-bucket than allowed. Maximum allowed is 32 rules.");
+ var temp = this.rulesInsertionIndexBitmap & ~(Mask << maskPosition);
+ temp |= value << maskPosition;
+ this.rulesInsertionIndexBitmap = temp;
+ };
+ return RulesBucketConstructionState;
+ })();
+ formatting.RulesBucketConstructionState = RulesBucketConstructionState;
+ var RulesBucket = (function () {
+ function RulesBucket() {
+ this.rules = [];
+ }
+ RulesBucket.prototype.Rules = function () {
+ return this.rules;
+ };
+ RulesBucket.prototype.AddRule = function (rule, specificTokens, constructionState, rulesBucketIndex) {
+ var position;
+ if (rule.Operation.Action === 1 /* Ignore */) {
+ position = specificTokens ?
+ RulesPosition.IgnoreRulesSpecific :
+ RulesPosition.IgnoreRulesAny;
+ }
+ else if (!rule.Operation.Context.IsAny()) {
+ position = specificTokens ?
+ RulesPosition.ContextRulesSpecific :
+ RulesPosition.ContextRulesAny;
+ }
+ else {
+ position = specificTokens ?
+ RulesPosition.NoContextRulesSpecific :
+ RulesPosition.NoContextRulesAny;
+ }
+ var state = constructionState[rulesBucketIndex];
+ if (state === undefined) {
+ state = constructionState[rulesBucketIndex] = new RulesBucketConstructionState();
+ }
+ var index = state.GetInsertionIndex(position);
+ this.rules.splice(index, 0, rule);
+ state.IncreaseInsertionIndex(position);
+ };
+ return RulesBucket;
+ })();
+ formatting.RulesBucket = RulesBucket;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var Shared;
+ (function (Shared) {
+ var TokenRangeAccess = (function () {
+ function TokenRangeAccess(from, to, except) {
+ this.tokens = [];
+ for (var token = from; token <= to; token++) {
+ if (except.indexOf(token) < 0) {
+ this.tokens.push(token);
+ }
+ }
+ }
+ TokenRangeAccess.prototype.GetTokens = function () {
+ return this.tokens;
+ };
+ TokenRangeAccess.prototype.Contains = function (token) {
+ return this.tokens.indexOf(token) >= 0;
+ };
+ return TokenRangeAccess;
+ })();
+ Shared.TokenRangeAccess = TokenRangeAccess;
+ var TokenValuesAccess = (function () {
+ function TokenValuesAccess(tks) {
+ this.tokens = tks && tks.length ? tks : [];
+ }
+ TokenValuesAccess.prototype.GetTokens = function () {
+ return this.tokens;
+ };
+ TokenValuesAccess.prototype.Contains = function (token) {
+ return this.tokens.indexOf(token) >= 0;
+ };
+ return TokenValuesAccess;
+ })();
+ Shared.TokenValuesAccess = TokenValuesAccess;
+ var TokenSingleValueAccess = (function () {
+ function TokenSingleValueAccess(token) {
+ this.token = token;
+ }
+ TokenSingleValueAccess.prototype.GetTokens = function () {
+ return [this.token];
+ };
+ TokenSingleValueAccess.prototype.Contains = function (tokenValue) {
+ return tokenValue === this.token;
+ };
+ return TokenSingleValueAccess;
+ })();
+ Shared.TokenSingleValueAccess = TokenSingleValueAccess;
+ var TokenAllAccess = (function () {
+ function TokenAllAccess() {
+ }
+ TokenAllAccess.prototype.GetTokens = function () {
+ var result = [];
+ for (var token = 0 /* FirstToken */; token <= 134 /* LastToken */; token++) {
+ result.push(token);
+ }
+ return result;
+ };
+ TokenAllAccess.prototype.Contains = function (tokenValue) {
+ return true;
+ };
+ TokenAllAccess.prototype.toString = function () {
+ return "[allTokens]";
+ };
+ return TokenAllAccess;
+ })();
+ Shared.TokenAllAccess = TokenAllAccess;
+ var TokenRange = (function () {
+ function TokenRange(tokenAccess) {
+ this.tokenAccess = tokenAccess;
+ }
+ TokenRange.FromToken = function (token) {
+ return new TokenRange(new TokenSingleValueAccess(token));
+ };
+ TokenRange.FromTokens = function (tokens) {
+ return new TokenRange(new TokenValuesAccess(tokens));
+ };
+ TokenRange.FromRange = function (f, to, except) {
+ if (except === void 0) { except = []; }
+ return new TokenRange(new TokenRangeAccess(f, to, except));
+ };
+ TokenRange.AllTokens = function () {
+ return new TokenRange(new TokenAllAccess());
+ };
+ TokenRange.prototype.GetTokens = function () {
+ return this.tokenAccess.GetTokens();
+ };
+ TokenRange.prototype.Contains = function (token) {
+ return this.tokenAccess.Contains(token);
+ };
+ TokenRange.prototype.toString = function () {
+ return this.tokenAccess.toString();
+ };
+ TokenRange.Any = TokenRange.AllTokens();
+ TokenRange.AnyIncludingMultilineComments = TokenRange.FromTokens(TokenRange.Any.GetTokens().concat([3 /* MultiLineCommentTrivia */]));
+ TokenRange.Keywords = TokenRange.FromRange(70 /* FirstKeyword */, 134 /* LastKeyword */);
+ TokenRange.BinaryOperators = TokenRange.FromRange(25 /* FirstBinaryOperator */, 68 /* LastBinaryOperator */);
+ TokenRange.BinaryKeywordOperators = TokenRange.FromTokens([90 /* InKeyword */, 91 /* InstanceOfKeyword */, 134 /* OfKeyword */, 116 /* AsKeyword */, 124 /* IsKeyword */]);
+ TokenRange.UnaryPrefixOperators = TokenRange.FromTokens([41 /* PlusPlusToken */, 42 /* MinusMinusToken */, 50 /* TildeToken */, 49 /* ExclamationToken */]);
+ TokenRange.UnaryPrefixExpressions = TokenRange.FromTokens([8 /* NumericLiteral */, 69 /* Identifier */, 17 /* OpenParenToken */, 19 /* OpenBracketToken */, 15 /* OpenBraceToken */, 97 /* ThisKeyword */, 92 /* NewKeyword */]);
+ TokenRange.UnaryPreincrementExpressions = TokenRange.FromTokens([69 /* Identifier */, 17 /* OpenParenToken */, 97 /* ThisKeyword */, 92 /* NewKeyword */]);
+ TokenRange.UnaryPostincrementExpressions = TokenRange.FromTokens([69 /* Identifier */, 18 /* CloseParenToken */, 20 /* CloseBracketToken */, 92 /* NewKeyword */]);
+ TokenRange.UnaryPredecrementExpressions = TokenRange.FromTokens([69 /* Identifier */, 17 /* OpenParenToken */, 97 /* ThisKeyword */, 92 /* NewKeyword */]);
+ TokenRange.UnaryPostdecrementExpressions = TokenRange.FromTokens([69 /* Identifier */, 18 /* CloseParenToken */, 20 /* CloseBracketToken */, 92 /* NewKeyword */]);
+ TokenRange.Comments = TokenRange.FromTokens([2 /* SingleLineCommentTrivia */, 3 /* MultiLineCommentTrivia */]);
+ TokenRange.TypeNames = TokenRange.FromTokens([69 /* Identifier */, 128 /* NumberKeyword */, 130 /* StringKeyword */, 120 /* BooleanKeyword */, 131 /* SymbolKeyword */, 103 /* VoidKeyword */, 117 /* AnyKeyword */]);
+ return TokenRange;
+ })();
+ Shared.TokenRange = TokenRange;
+ })(Shared = formatting.Shared || (formatting.Shared = {}));
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='..\services.ts' />
+///<reference path='formattingContext.ts' />
+///<reference path='formattingRequestKind.ts' />
+///<reference path='rule.ts' />
+///<reference path='ruleAction.ts' />
+///<reference path='ruleDescriptor.ts' />
+///<reference path='ruleFlag.ts' />
+///<reference path='ruleOperation.ts' />
+///<reference path='ruleOperationContext.ts' />
+///<reference path='rules.ts' />
+///<reference path='rulesMap.ts' />
+///<reference path='tokenRange.ts' />
+/// <reference path="references.ts"/>
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var RulesProvider = (function () {
+ function RulesProvider() {
+ this.globalRules = new formatting.Rules();
+ }
+ RulesProvider.prototype.getRuleName = function (rule) {
+ return this.globalRules.getRuleName(rule);
+ };
+ RulesProvider.prototype.getRuleByName = function (name) {
+ return this.globalRules[name];
+ };
+ RulesProvider.prototype.getRulesMap = function () {
+ return this.rulesMap;
+ };
+ RulesProvider.prototype.ensureUpToDate = function (options) {
+ // TODO: Should this be '==='?
+ if (this.options == null || !ts.compareDataObjects(this.options, options)) {
+ var activeRules = this.createActiveRules(options);
+ var rulesMap = formatting.RulesMap.create(activeRules);
+ this.activeRules = activeRules;
+ this.rulesMap = rulesMap;
+ this.options = ts.clone(options);
+ }
+ };
+ RulesProvider.prototype.createActiveRules = function (options) {
+ var rules = this.globalRules.HighPriorityCommonRules.slice(0);
+ if (options.InsertSpaceAfterCommaDelimiter) {
+ rules.push(this.globalRules.SpaceAfterComma);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterComma);
+ }
+ if (options.InsertSpaceAfterFunctionKeywordForAnonymousFunctions) {
+ rules.push(this.globalRules.SpaceAfterAnonymousFunctionKeyword);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterAnonymousFunctionKeyword);
+ }
+ if (options.InsertSpaceAfterKeywordsInControlFlowStatements) {
+ rules.push(this.globalRules.SpaceAfterKeywordInControl);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterKeywordInControl);
+ }
+ if (options.InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis) {
+ rules.push(this.globalRules.SpaceAfterOpenParen);
+ rules.push(this.globalRules.SpaceBeforeCloseParen);
+ rules.push(this.globalRules.NoSpaceBetweenParens);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterOpenParen);
+ rules.push(this.globalRules.NoSpaceBeforeCloseParen);
+ rules.push(this.globalRules.NoSpaceBetweenParens);
+ }
+ if (options.InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets) {
+ rules.push(this.globalRules.SpaceAfterOpenBracket);
+ rules.push(this.globalRules.SpaceBeforeCloseBracket);
+ rules.push(this.globalRules.NoSpaceBetweenBrackets);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterOpenBracket);
+ rules.push(this.globalRules.NoSpaceBeforeCloseBracket);
+ rules.push(this.globalRules.NoSpaceBetweenBrackets);
+ }
+ if (options.InsertSpaceAfterSemicolonInForStatements) {
+ rules.push(this.globalRules.SpaceAfterSemicolonInFor);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceAfterSemicolonInFor);
+ }
+ if (options.InsertSpaceBeforeAndAfterBinaryOperators) {
+ rules.push(this.globalRules.SpaceBeforeBinaryOperator);
+ rules.push(this.globalRules.SpaceAfterBinaryOperator);
+ }
+ else {
+ rules.push(this.globalRules.NoSpaceBeforeBinaryOperator);
+ rules.push(this.globalRules.NoSpaceAfterBinaryOperator);
+ }
+ if (options.PlaceOpenBraceOnNewLineForControlBlocks) {
+ rules.push(this.globalRules.NewLineBeforeOpenBraceInControl);
+ }
+ if (options.PlaceOpenBraceOnNewLineForFunctions) {
+ rules.push(this.globalRules.NewLineBeforeOpenBraceInFunction);
+ rules.push(this.globalRules.NewLineBeforeOpenBraceInTypeScriptDeclWithBlock);
+ }
+ rules = rules.concat(this.globalRules.LowPriorityCommonRules);
+ return rules;
+ };
+ return RulesProvider;
+ })();
+ formatting.RulesProvider = RulesProvider;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='..\services.ts' />
+///<reference path='formattingScanner.ts' />
+///<reference path='rulesProvider.ts' />
+///<reference path='references.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var Constants;
+ (function (Constants) {
+ Constants[Constants["Unknown"] = -1] = "Unknown";
+ })(Constants || (Constants = {}));
+ function formatOnEnter(position, sourceFile, rulesProvider, options) {
+ var line = sourceFile.getLineAndCharacterOfPosition(position).line;
+ if (line === 0) {
+ return [];
+ }
+ // get the span for the previous\current line
+ var span = {
+ // get start position for the previous line
+ pos: ts.getStartPositionOfLine(line - 1, sourceFile),
+ // get end position for the current line (end value is exclusive so add 1 to the result)
+ end: ts.getEndLinePosition(line, sourceFile) + 1
+ };
+ return formatSpan(span, sourceFile, options, rulesProvider, 2 /* FormatOnEnter */);
+ }
+ formatting.formatOnEnter = formatOnEnter;
+ function formatOnSemicolon(position, sourceFile, rulesProvider, options) {
+ return formatOutermostParent(position, 23 /* SemicolonToken */, sourceFile, options, rulesProvider, 3 /* FormatOnSemicolon */);
+ }
+ formatting.formatOnSemicolon = formatOnSemicolon;
+ function formatOnClosingCurly(position, sourceFile, rulesProvider, options) {
+ return formatOutermostParent(position, 16 /* CloseBraceToken */, sourceFile, options, rulesProvider, 4 /* FormatOnClosingCurlyBrace */);
+ }
+ formatting.formatOnClosingCurly = formatOnClosingCurly;
+ function formatDocument(sourceFile, rulesProvider, options) {
+ var span = {
+ pos: 0,
+ end: sourceFile.text.length
+ };
+ return formatSpan(span, sourceFile, options, rulesProvider, 0 /* FormatDocument */);
+ }
+ formatting.formatDocument = formatDocument;
+ function formatSelection(start, end, sourceFile, rulesProvider, options) {
+ // format from the beginning of the line
+ var span = {
+ pos: ts.getLineStartPositionForPosition(start, sourceFile),
+ end: end
+ };
+ return formatSpan(span, sourceFile, options, rulesProvider, 1 /* FormatSelection */);
+ }
+ formatting.formatSelection = formatSelection;
+ function formatOutermostParent(position, expectedLastToken, sourceFile, options, rulesProvider, requestKind) {
+ var parent = findOutermostParent(position, expectedLastToken, sourceFile);
+ if (!parent) {
+ return [];
+ }
+ var span = {
+ pos: ts.getLineStartPositionForPosition(parent.getStart(sourceFile), sourceFile),
+ end: parent.end
+ };
+ return formatSpan(span, sourceFile, options, rulesProvider, requestKind);
+ }
+ function findOutermostParent(position, expectedTokenKind, sourceFile) {
+ var precedingToken = ts.findPrecedingToken(position, sourceFile);
+ // when it is claimed that trigger character was typed at given position
+ // we verify that there is a token with a matching kind whose end is equal to position (because the character was just typed).
+ // If this condition is not hold - then trigger character was typed in some other context,
+ // i.e.in comment and thus should not trigger autoformatting
+ if (!precedingToken ||
+ precedingToken.kind !== expectedTokenKind ||
+ position !== precedingToken.getEnd()) {
+ return undefined;
+ }
+ // walk up and search for the parent node that ends at the same position with precedingToken.
+ // for cases like this
+ //
+ // let x = 1;
+ // while (true) {
+ // }
+ // after typing close curly in while statement we want to reformat just the while statement.
+ // However if we just walk upwards searching for the parent that has the same end value -
+ // we'll end up with the whole source file. isListElement allows to stop on the list element level
+ var current = precedingToken;
+ while (current &&
+ current.parent &&
+ current.parent.end === precedingToken.end &&
+ !isListElement(current.parent, current)) {
+ current = current.parent;
+ }
+ return current;
+ }
+ // Returns true if node is a element in some list in parent
+ // i.e. parent is class declaration with the list of members and node is one of members.
+ function isListElement(parent, node) {
+ switch (parent.kind) {
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ return ts.rangeContainsRange(parent.members, node);
+ case 218 /* ModuleDeclaration */:
+ var body = parent.body;
+ return body && body.kind === 192 /* Block */ && ts.rangeContainsRange(body.statements, node);
+ case 248 /* SourceFile */:
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ return ts.rangeContainsRange(parent.statements, node);
+ case 244 /* CatchClause */:
+ return ts.rangeContainsRange(parent.block.statements, node);
+ }
+ return false;
+ }
+ /** find node that fully contains given text range */
+ function findEnclosingNode(range, sourceFile) {
+ return find(sourceFile);
+ function find(n) {
+ var candidate = ts.forEachChild(n, function (c) { return ts.startEndContainsRange(c.getStart(sourceFile), c.end, range) && c; });
+ if (candidate) {
+ var result = find(candidate);
+ if (result) {
+ return result;
+ }
+ }
+ return n;
+ }
+ }
+ /** formatting is not applied to ranges that contain parse errors.
+ * This function will return a predicate that for a given text range will tell
+ * if there are any parse errors that overlap with the range.
+ */
+ function prepareRangeContainsErrorFunction(errors, originalRange) {
+ if (!errors.length) {
+ return rangeHasNoErrors;
+ }
+ // pick only errors that fall in range
+ var sorted = errors
+ .filter(function (d) { return ts.rangeOverlapsWithStartEnd(originalRange, d.start, d.start + d.length); })
+ .sort(function (e1, e2) { return e1.start - e2.start; });
+ if (!sorted.length) {
+ return rangeHasNoErrors;
+ }
+ var index = 0;
+ return function (r) {
+ // in current implementation sequence of arguments [r1, r2...] is monotonically increasing.
+ // 'index' tracks the index of the most recent error that was checked.
+ while (true) {
+ if (index >= sorted.length) {
+ // all errors in the range were already checked -> no error in specified range
+ return false;
+ }
+ var error = sorted[index];
+ if (r.end <= error.start) {
+ // specified range ends before the error refered by 'index' - no error in range
+ return false;
+ }
+ if (ts.startEndOverlapsWithStartEnd(r.pos, r.end, error.start, error.start + error.length)) {
+ // specified range overlaps with error range
+ return true;
+ }
+ index++;
+ }
+ };
+ function rangeHasNoErrors(r) {
+ return false;
+ }
+ }
+ /**
+ * Start of the original range might fall inside the comment - scanner will not yield appropriate results
+ * This function will look for token that is located before the start of target range
+ * and return its end as start position for the scanner.
+ */
+ function getScanStartPosition(enclosingNode, originalRange, sourceFile) {
+ var start = enclosingNode.getStart(sourceFile);
+ if (start === originalRange.pos && enclosingNode.end === originalRange.end) {
+ return start;
+ }
+ var precedingToken = ts.findPrecedingToken(originalRange.pos, sourceFile);
+ if (!precedingToken) {
+ // no preceding token found - start from the beginning of enclosing node
+ return enclosingNode.pos;
+ }
+ // preceding token ends after the start of original range (i.e when originaRange.pos falls in the middle of literal)
+ // start from the beginning of enclosingNode to handle the entire 'originalRange'
+ if (precedingToken.end >= originalRange.pos) {
+ return enclosingNode.pos;
+ }
+ return precedingToken.end;
+ }
+ /*
+ * For cases like
+ * if (a ||
+ * b ||$
+ * c) {...}
+ * If we hit Enter at $ we want line ' b ||' to be indented.
+ * Formatting will be applied to the last two lines.
+ * Node that fully encloses these lines is binary expression 'a ||...'.
+ * Initial indentation for this node will be 0.
+ * Binary expressions don't introduce new indentation scopes, however it is possible
+ * that some parent node on the same line does - like if statement in this case.
+ * Note that we are considering parents only from the same line with initial node -
+ * if parent is on the different line - its delta was already contributed
+ * to the initial indentation.
+ */
+ function getOwnOrInheritedDelta(n, options, sourceFile) {
+ var previousLine = -1 /* Unknown */;
+ var childKind = 0 /* Unknown */;
+ while (n) {
+ var line = sourceFile.getLineAndCharacterOfPosition(n.getStart(sourceFile)).line;
+ if (previousLine !== -1 /* Unknown */ && line !== previousLine) {
+ break;
+ }
+ if (formatting.SmartIndenter.shouldIndentChildNode(n.kind, childKind)) {
+ return options.IndentSize;
+ }
+ previousLine = line;
+ childKind = n.kind;
+ n = n.parent;
+ }
+ return 0;
+ }
+ function formatSpan(originalRange, sourceFile, options, rulesProvider, requestKind) {
+ var rangeContainsError = prepareRangeContainsErrorFunction(sourceFile.parseDiagnostics, originalRange);
+ // formatting context is used by rules provider
+ var formattingContext = new formatting.FormattingContext(sourceFile, requestKind);
+ // find the smallest node that fully wraps the range and compute the initial indentation for the node
+ var enclosingNode = findEnclosingNode(originalRange, sourceFile);
+ var formattingScanner = formatting.getFormattingScanner(sourceFile, getScanStartPosition(enclosingNode, originalRange, sourceFile), originalRange.end);
+ var initialIndentation = formatting.SmartIndenter.getIndentationForNode(enclosingNode, originalRange, sourceFile, options);
+ var previousRangeHasError;
+ var previousRange;
+ var previousParent;
+ var previousRangeStartLine;
+ var lastIndentedLine;
+ var indentationOnLastIndentedLine;
+ var edits = [];
+ formattingScanner.advance();
+ if (formattingScanner.isOnToken()) {
+ var startLine = sourceFile.getLineAndCharacterOfPosition(enclosingNode.getStart(sourceFile)).line;
+ var undecoratedStartLine = startLine;
+ if (enclosingNode.decorators) {
+ undecoratedStartLine = sourceFile.getLineAndCharacterOfPosition(ts.getNonDecoratorTokenPosOfNode(enclosingNode, sourceFile)).line;
+ }
+ var delta = getOwnOrInheritedDelta(enclosingNode, options, sourceFile);
+ processNode(enclosingNode, enclosingNode, startLine, undecoratedStartLine, initialIndentation, delta);
+ }
+ formattingScanner.close();
+ return edits;
+ // local functions
+ /** Tries to compute the indentation for a list element.
+ * If list element is not in range then
+ * function will pick its actual indentation
+ * so it can be pushed downstream as inherited indentation.
+ * If list element is in the range - its indentation will be equal
+ * to inherited indentation from its predecessors.
+ */
+ function tryComputeIndentationForListItem(startPos, endPos, parentStartLine, range, inheritedIndentation) {
+ if (ts.rangeOverlapsWithStartEnd(range, startPos, endPos)) {
+ if (inheritedIndentation !== -1 /* Unknown */) {
+ return inheritedIndentation;
+ }
+ }
+ else {
+ var startLine = sourceFile.getLineAndCharacterOfPosition(startPos).line;
+ var startLinePosition = ts.getLineStartPositionForPosition(startPos, sourceFile);
+ var column = formatting.SmartIndenter.findFirstNonWhitespaceColumn(startLinePosition, startPos, sourceFile, options);
+ if (startLine !== parentStartLine || startPos === column) {
+ return column;
+ }
+ }
+ return -1 /* Unknown */;
+ }
+ function computeIndentation(node, startLine, inheritedIndentation, parent, parentDynamicIndentation, effectiveParentStartLine) {
+ var indentation = inheritedIndentation;
+ if (indentation === -1 /* Unknown */) {
+ if (isSomeBlock(node.kind)) {
+ // blocks should be indented in
+ // - other blocks
+ // - source file
+ // - switch\default clauses
+ if (isSomeBlock(parent.kind) ||
+ parent.kind === 248 /* SourceFile */ ||
+ parent.kind === 241 /* CaseClause */ ||
+ parent.kind === 242 /* DefaultClause */) {
+ indentation = parentDynamicIndentation.getIndentation() + parentDynamicIndentation.getDelta();
+ }
+ else {
+ indentation = parentDynamicIndentation.getIndentation();
+ }
+ }
+ else {
+ if (formatting.SmartIndenter.childStartsOnTheSameLineWithElseInIfStatement(parent, node, startLine, sourceFile)) {
+ indentation = parentDynamicIndentation.getIndentation();
+ }
+ else {
+ indentation = parentDynamicIndentation.getIndentation() + parentDynamicIndentation.getDelta();
+ }
+ }
+ }
+ var delta = formatting.SmartIndenter.shouldIndentChildNode(node.kind, 0 /* Unknown */) ? options.IndentSize : 0;
+ if (effectiveParentStartLine === startLine) {
+ // if node is located on the same line with the parent
+ // - inherit indentation from the parent
+ // - push children if either parent of node itself has non-zero delta
+ indentation = startLine === lastIndentedLine
+ ? indentationOnLastIndentedLine
+ : parentDynamicIndentation.getIndentation();
+ delta = Math.min(options.IndentSize, parentDynamicIndentation.getDelta() + delta);
+ }
+ return {
+ indentation: indentation,
+ delta: delta
+ };
+ }
+ function getFirstNonDecoratorTokenOfNode(node) {
+ if (node.modifiers && node.modifiers.length) {
+ return node.modifiers[0].kind;
+ }
+ switch (node.kind) {
+ case 214 /* ClassDeclaration */: return 73 /* ClassKeyword */;
+ case 215 /* InterfaceDeclaration */: return 107 /* InterfaceKeyword */;
+ case 213 /* FunctionDeclaration */: return 87 /* FunctionKeyword */;
+ case 217 /* EnumDeclaration */: return 217 /* EnumDeclaration */;
+ case 145 /* GetAccessor */: return 123 /* GetKeyword */;
+ case 146 /* SetAccessor */: return 129 /* SetKeyword */;
+ case 143 /* MethodDeclaration */:
+ if (node.asteriskToken) {
+ return 37 /* AsteriskToken */;
+ }
+ // fall-through
+ case 141 /* PropertyDeclaration */:
+ case 138 /* Parameter */:
+ return node.name.kind;
+ }
+ }
+ function getDynamicIndentation(node, nodeStartLine, indentation, delta) {
+ return {
+ getIndentationForComment: function (kind, tokenIndentation) {
+ switch (kind) {
+ // preceding comment to the token that closes the indentation scope inherits the indentation from the scope
+ // .. {
+ // // comment
+ // }
+ case 16 /* CloseBraceToken */:
+ case 20 /* CloseBracketToken */:
+ case 18 /* CloseParenToken */:
+ return indentation + delta;
+ }
+ return tokenIndentation !== -1 /* Unknown */ ? tokenIndentation : indentation;
+ },
+ getIndentationForToken: function (line, kind) {
+ if (nodeStartLine !== line && node.decorators) {
+ if (kind === getFirstNonDecoratorTokenOfNode(node)) {
+ // if this token is the first token following the list of decorators, we do not need to indent
+ return indentation;
+ }
+ }
+ switch (kind) {
+ // open and close brace, 'else' and 'while' (in do statement) tokens has indentation of the parent
+ case 15 /* OpenBraceToken */:
+ case 16 /* CloseBraceToken */:
+ case 19 /* OpenBracketToken */:
+ case 20 /* CloseBracketToken */:
+ case 17 /* OpenParenToken */:
+ case 18 /* CloseParenToken */:
+ case 80 /* ElseKeyword */:
+ case 104 /* WhileKeyword */:
+ case 55 /* AtToken */:
+ return indentation;
+ default:
+ // if token line equals to the line of containing node (this is a first token in the node) - use node indentation
+ return nodeStartLine !== line ? indentation + delta : indentation;
+ }
+ },
+ getIndentation: function () { return indentation; },
+ getDelta: function () { return delta; },
+ recomputeIndentation: function (lineAdded) {
+ if (node.parent && formatting.SmartIndenter.shouldIndentChildNode(node.parent.kind, node.kind)) {
+ if (lineAdded) {
+ indentation += options.IndentSize;
+ }
+ else {
+ indentation -= options.IndentSize;
+ }
+ if (formatting.SmartIndenter.shouldIndentChildNode(node.kind, 0 /* Unknown */)) {
+ delta = options.IndentSize;
+ }
+ else {
+ delta = 0;
+ }
+ }
+ }
+ };
+ }
+ function processNode(node, contextNode, nodeStartLine, undecoratedNodeStartLine, indentation, delta) {
+ if (!ts.rangeOverlapsWithStartEnd(originalRange, node.getStart(sourceFile), node.getEnd())) {
+ return;
+ }
+ var nodeDynamicIndentation = getDynamicIndentation(node, nodeStartLine, indentation, delta);
+ // a useful observations when tracking context node
+ // /
+ // [a]
+ // / | \
+ // [b] [c] [d]
+ // node 'a' is a context node for nodes 'b', 'c', 'd'
+ // except for the leftmost leaf token in [b] - in this case context node ('e') is located somewhere above 'a'
+ // this rule can be applied recursively to child nodes of 'a'.
+ //
+ // context node is set to parent node value after processing every child node
+ // context node is set to parent of the token after processing every token
+ var childContextNode = contextNode;
+ // if there are any tokens that logically belong to node and interleave child nodes
+ // such tokens will be consumed in processChildNode for for the child that follows them
+ ts.forEachChild(node, function (child) {
+ processChildNode(child, /*inheritedIndentation*/ -1 /* Unknown */, node, nodeDynamicIndentation, nodeStartLine, undecoratedNodeStartLine, /*isListElement*/ false);
+ }, function (nodes) {
+ processChildNodes(nodes, node, nodeStartLine, nodeDynamicIndentation);
+ });
+ // proceed any tokens in the node that are located after child nodes
+ while (formattingScanner.isOnToken()) {
+ var tokenInfo = formattingScanner.readTokenInfo(node);
+ if (tokenInfo.token.end > node.end) {
+ break;
+ }
+ consumeTokenAndAdvanceScanner(tokenInfo, node, nodeDynamicIndentation);
+ }
+ function processChildNode(child, inheritedIndentation, parent, parentDynamicIndentation, parentStartLine, undecoratedParentStartLine, isListItem) {
+ var childStartPos = child.getStart(sourceFile);
+ var childStartLine = sourceFile.getLineAndCharacterOfPosition(childStartPos).line;
+ var undecoratedChildStartLine = childStartLine;
+ if (child.decorators) {
+ undecoratedChildStartLine = sourceFile.getLineAndCharacterOfPosition(ts.getNonDecoratorTokenPosOfNode(child, sourceFile)).line;
+ }
+ // if child is a list item - try to get its indentation
+ var childIndentationAmount = -1 /* Unknown */;
+ if (isListItem) {
+ childIndentationAmount = tryComputeIndentationForListItem(childStartPos, child.end, parentStartLine, originalRange, inheritedIndentation);
+ if (childIndentationAmount !== -1 /* Unknown */) {
+ inheritedIndentation = childIndentationAmount;
+ }
+ }
+ // child node is outside the target range - do not dive inside
+ if (!ts.rangeOverlapsWithStartEnd(originalRange, child.pos, child.end)) {
+ return inheritedIndentation;
+ }
+ if (child.getFullWidth() === 0) {
+ return inheritedIndentation;
+ }
+ while (formattingScanner.isOnToken()) {
+ // proceed any parent tokens that are located prior to child.getStart()
+ var tokenInfo = formattingScanner.readTokenInfo(node);
+ if (tokenInfo.token.end > childStartPos) {
+ // stop when formatting scanner advances past the beginning of the child
+ break;
+ }
+ consumeTokenAndAdvanceScanner(tokenInfo, node, parentDynamicIndentation);
+ }
+ if (!formattingScanner.isOnToken()) {
+ return inheritedIndentation;
+ }
+ if (ts.isToken(child)) {
+ // if child node is a token, it does not impact indentation, proceed it using parent indentation scope rules
+ var tokenInfo = formattingScanner.readTokenInfo(child);
+ ts.Debug.assert(tokenInfo.token.end === child.end);
+ consumeTokenAndAdvanceScanner(tokenInfo, node, parentDynamicIndentation);
+ return inheritedIndentation;
+ }
+ var effectiveParentStartLine = child.kind === 139 /* Decorator */ ? childStartLine : undecoratedParentStartLine;
+ var childIndentation = computeIndentation(child, childStartLine, childIndentationAmount, node, parentDynamicIndentation, effectiveParentStartLine);
+ processNode(child, childContextNode, childStartLine, undecoratedChildStartLine, childIndentation.indentation, childIndentation.delta);
+ childContextNode = node;
+ return inheritedIndentation;
+ }
+ function processChildNodes(nodes, parent, parentStartLine, parentDynamicIndentation) {
+ var listStartToken = getOpenTokenForList(parent, nodes);
+ var listEndToken = getCloseTokenForOpenToken(listStartToken);
+ var listDynamicIndentation = parentDynamicIndentation;
+ var startLine = parentStartLine;
+ if (listStartToken !== 0 /* Unknown */) {
+ // introduce a new indentation scope for lists (including list start and end tokens)
+ while (formattingScanner.isOnToken()) {
+ var tokenInfo = formattingScanner.readTokenInfo(parent);
+ if (tokenInfo.token.end > nodes.pos) {
+ // stop when formatting scanner moves past the beginning of node list
+ break;
+ }
+ else if (tokenInfo.token.kind === listStartToken) {
+ // consume list start token
+ startLine = sourceFile.getLineAndCharacterOfPosition(tokenInfo.token.pos).line;
+ var indentation_1 = computeIndentation(tokenInfo.token, startLine, -1 /* Unknown */, parent, parentDynamicIndentation, parentStartLine);
+ listDynamicIndentation = getDynamicIndentation(parent, parentStartLine, indentation_1.indentation, indentation_1.delta);
+ consumeTokenAndAdvanceScanner(tokenInfo, parent, listDynamicIndentation);
+ }
+ else {
+ // consume any tokens that precede the list as child elements of 'node' using its indentation scope
+ consumeTokenAndAdvanceScanner(tokenInfo, parent, parentDynamicIndentation);
+ }
+ }
+ }
+ var inheritedIndentation = -1 /* Unknown */;
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var child = nodes[_i];
+ inheritedIndentation = processChildNode(child, inheritedIndentation, node, listDynamicIndentation, startLine, startLine, /*isListElement*/ true);
+ }
+ if (listEndToken !== 0 /* Unknown */) {
+ if (formattingScanner.isOnToken()) {
+ var tokenInfo = formattingScanner.readTokenInfo(parent);
+ // consume the list end token only if it is still belong to the parent
+ // there might be the case when current token matches end token but does not considered as one
+ // function (x: function) <--
+ // without this check close paren will be interpreted as list end token for function expression which is wrong
+ if (tokenInfo.token.kind === listEndToken && ts.rangeContainsRange(parent, tokenInfo.token)) {
+ // consume list end token
+ consumeTokenAndAdvanceScanner(tokenInfo, parent, listDynamicIndentation);
+ }
+ }
+ }
+ }
+ function consumeTokenAndAdvanceScanner(currentTokenInfo, parent, dynamicIndentation) {
+ ts.Debug.assert(ts.rangeContainsRange(parent, currentTokenInfo.token));
+ var lastTriviaWasNewLine = formattingScanner.lastTrailingTriviaWasNewLine();
+ var indentToken = false;
+ if (currentTokenInfo.leadingTrivia) {
+ processTrivia(currentTokenInfo.leadingTrivia, parent, childContextNode, dynamicIndentation);
+ }
+ var lineAdded;
+ var isTokenInRange = ts.rangeContainsRange(originalRange, currentTokenInfo.token);
+ var tokenStart = sourceFile.getLineAndCharacterOfPosition(currentTokenInfo.token.pos);
+ if (isTokenInRange) {
+ var rangeHasError = rangeContainsError(currentTokenInfo.token);
+ // save prevStartLine since processRange will overwrite this value with current ones
+ var prevStartLine = previousRangeStartLine;
+ lineAdded = processRange(currentTokenInfo.token, tokenStart, parent, childContextNode, dynamicIndentation);
+ if (rangeHasError) {
+ // do not indent comments\token if token range overlaps with some error
+ indentToken = false;
+ }
+ else {
+ if (lineAdded !== undefined) {
+ indentToken = lineAdded;
+ }
+ else {
+ indentToken = lastTriviaWasNewLine && tokenStart.line !== prevStartLine;
+ }
+ }
+ }
+ if (currentTokenInfo.trailingTrivia) {
+ processTrivia(currentTokenInfo.trailingTrivia, parent, childContextNode, dynamicIndentation);
+ }
+ if (indentToken) {
+ var tokenIndentation = (isTokenInRange && !rangeContainsError(currentTokenInfo.token)) ?
+ dynamicIndentation.getIndentationForToken(tokenStart.line, currentTokenInfo.token.kind) :
+ -1 /* Unknown */;
+ if (currentTokenInfo.leadingTrivia) {
+ var commentIndentation = dynamicIndentation.getIndentationForComment(currentTokenInfo.token.kind, tokenIndentation);
+ var indentNextTokenOrTrivia = true;
+ for (var _i = 0, _a = currentTokenInfo.leadingTrivia; _i < _a.length; _i++) {
+ var triviaItem = _a[_i];
+ if (!ts.rangeContainsRange(originalRange, triviaItem)) {
+ continue;
+ }
+ switch (triviaItem.kind) {
+ case 3 /* MultiLineCommentTrivia */:
+ indentMultilineComment(triviaItem, commentIndentation, /*firstLineIsIndented*/ !indentNextTokenOrTrivia);
+ indentNextTokenOrTrivia = false;
+ break;
+ case 2 /* SingleLineCommentTrivia */:
+ if (indentNextTokenOrTrivia) {
+ insertIndentation(triviaItem.pos, commentIndentation, /*lineAdded*/ false);
+ indentNextTokenOrTrivia = false;
+ }
+ break;
+ case 4 /* NewLineTrivia */:
+ indentNextTokenOrTrivia = true;
+ break;
+ }
+ }
+ }
+ // indent token only if is it is in target range and does not overlap with any error ranges
+ if (tokenIndentation !== -1 /* Unknown */) {
+ insertIndentation(currentTokenInfo.token.pos, tokenIndentation, lineAdded);
+ lastIndentedLine = tokenStart.line;
+ indentationOnLastIndentedLine = tokenIndentation;
+ }
+ }
+ formattingScanner.advance();
+ childContextNode = parent;
+ }
+ }
+ function processTrivia(trivia, parent, contextNode, dynamicIndentation) {
+ for (var _i = 0; _i < trivia.length; _i++) {
+ var triviaItem = trivia[_i];
+ if (ts.isComment(triviaItem.kind) && ts.rangeContainsRange(originalRange, triviaItem)) {
+ var triviaItemStart = sourceFile.getLineAndCharacterOfPosition(triviaItem.pos);
+ processRange(triviaItem, triviaItemStart, parent, contextNode, dynamicIndentation);
+ }
+ }
+ }
+ function processRange(range, rangeStart, parent, contextNode, dynamicIndentation) {
+ var rangeHasError = rangeContainsError(range);
+ var lineAdded;
+ if (!rangeHasError && !previousRangeHasError) {
+ if (!previousRange) {
+ // trim whitespaces starting from the beginning of the span up to the current line
+ var originalStart = sourceFile.getLineAndCharacterOfPosition(originalRange.pos);
+ trimTrailingWhitespacesForLines(originalStart.line, rangeStart.line);
+ }
+ else {
+ lineAdded =
+ processPair(range, rangeStart.line, parent, previousRange, previousRangeStartLine, previousParent, contextNode, dynamicIndentation);
+ }
+ }
+ previousRange = range;
+ previousParent = parent;
+ previousRangeStartLine = rangeStart.line;
+ previousRangeHasError = rangeHasError;
+ return lineAdded;
+ }
+ function processPair(currentItem, currentStartLine, currentParent, previousItem, previousStartLine, previousParent, contextNode, dynamicIndentation) {
+ formattingContext.updateContext(previousItem, previousParent, currentItem, currentParent, contextNode);
+ var rule = rulesProvider.getRulesMap().GetRule(formattingContext);
+ var trimTrailingWhitespaces;
+ var lineAdded;
+ if (rule) {
+ applyRuleEdits(rule, previousItem, previousStartLine, currentItem, currentStartLine);
+ if (rule.Operation.Action & (2 /* Space */ | 8 /* Delete */) && currentStartLine !== previousStartLine) {
+ lineAdded = false;
+ // Handle the case where the next line is moved to be the end of this line.
+ // In this case we don't indent the next line in the next pass.
+ if (currentParent.getStart(sourceFile) === currentItem.pos) {
+ dynamicIndentation.recomputeIndentation(/*lineAdded*/ false);
+ }
+ }
+ else if (rule.Operation.Action & 4 /* NewLine */ && currentStartLine === previousStartLine) {
+ lineAdded = true;
+ // Handle the case where token2 is moved to the new line.
+ // In this case we indent token2 in the next pass but we set
+ // sameLineIndent flag to notify the indenter that the indentation is within the line.
+ if (currentParent.getStart(sourceFile) === currentItem.pos) {
+ dynamicIndentation.recomputeIndentation(/*lineAdded*/ true);
+ }
+ }
+ // We need to trim trailing whitespace between the tokens if they were on different lines, and no rule was applied to put them on the same line
+ trimTrailingWhitespaces =
+ (rule.Operation.Action & (4 /* NewLine */ | 2 /* Space */)) &&
+ rule.Flag !== 1 /* CanDeleteNewLines */;
+ }
+ else {
+ trimTrailingWhitespaces = true;
+ }
+ if (currentStartLine !== previousStartLine && trimTrailingWhitespaces) {
+ // We need to trim trailing whitespace between the tokens if they were on different lines, and no rule was applied to put them on the same line
+ trimTrailingWhitespacesForLines(previousStartLine, currentStartLine, previousItem);
+ }
+ return lineAdded;
+ }
+ function insertIndentation(pos, indentation, lineAdded) {
+ var indentationString = getIndentationString(indentation, options);
+ if (lineAdded) {
+ // new line is added before the token by the formatting rules
+ // insert indentation string at the very beginning of the token
+ recordReplace(pos, 0, indentationString);
+ }
+ else {
+ var tokenStart = sourceFile.getLineAndCharacterOfPosition(pos);
+ if (indentation !== tokenStart.character) {
+ var startLinePosition = ts.getStartPositionOfLine(tokenStart.line, sourceFile);
+ recordReplace(startLinePosition, tokenStart.character, indentationString);
+ }
+ }
+ }
+ function indentMultilineComment(commentRange, indentation, firstLineIsIndented) {
+ // split comment in lines
+ var startLine = sourceFile.getLineAndCharacterOfPosition(commentRange.pos).line;
+ var endLine = sourceFile.getLineAndCharacterOfPosition(commentRange.end).line;
+ var parts;
+ if (startLine === endLine) {
+ if (!firstLineIsIndented) {
+ // treat as single line comment
+ insertIndentation(commentRange.pos, indentation, /*lineAdded*/ false);
+ }
+ return;
+ }
+ else {
+ parts = [];
+ var startPos = commentRange.pos;
+ for (var line = startLine; line < endLine; ++line) {
+ var endOfLine = ts.getEndLinePosition(line, sourceFile);
+ parts.push({ pos: startPos, end: endOfLine });
+ startPos = ts.getStartPositionOfLine(line + 1, sourceFile);
+ }
+ parts.push({ pos: startPos, end: commentRange.end });
+ }
+ var startLinePos = ts.getStartPositionOfLine(startLine, sourceFile);
+ var nonWhitespaceColumnInFirstPart = formatting.SmartIndenter.findFirstNonWhitespaceCharacterAndColumn(startLinePos, parts[0].pos, sourceFile, options);
+ if (indentation === nonWhitespaceColumnInFirstPart.column) {
+ return;
+ }
+ var startIndex = 0;
+ if (firstLineIsIndented) {
+ startIndex = 1;
+ startLine++;
+ }
+ // shift all parts on the delta size
+ var delta = indentation - nonWhitespaceColumnInFirstPart.column;
+ for (var i = startIndex, len = parts.length; i < len; ++i, ++startLine) {
+ var startLinePos_1 = ts.getStartPositionOfLine(startLine, sourceFile);
+ var nonWhitespaceCharacterAndColumn = i === 0
+ ? nonWhitespaceColumnInFirstPart
+ : formatting.SmartIndenter.findFirstNonWhitespaceCharacterAndColumn(parts[i].pos, parts[i].end, sourceFile, options);
+ var newIndentation = nonWhitespaceCharacterAndColumn.column + delta;
+ if (newIndentation > 0) {
+ var indentationString = getIndentationString(newIndentation, options);
+ recordReplace(startLinePos_1, nonWhitespaceCharacterAndColumn.character, indentationString);
+ }
+ else {
+ recordDelete(startLinePos_1, nonWhitespaceCharacterAndColumn.character);
+ }
+ }
+ }
+ function trimTrailingWhitespacesForLines(line1, line2, range) {
+ for (var line = line1; line < line2; ++line) {
+ var lineStartPosition = ts.getStartPositionOfLine(line, sourceFile);
+ var lineEndPosition = ts.getEndLinePosition(line, sourceFile);
+ // do not trim whitespaces in comments or template expression
+ if (range && (ts.isComment(range.kind) || ts.isStringOrRegularExpressionOrTemplateLiteral(range.kind)) && range.pos <= lineEndPosition && range.end > lineEndPosition) {
+ continue;
+ }
+ var pos = lineEndPosition;
+ while (pos >= lineStartPosition && ts.isWhiteSpace(sourceFile.text.charCodeAt(pos))) {
+ pos--;
+ }
+ if (pos !== lineEndPosition) {
+ ts.Debug.assert(pos === lineStartPosition || !ts.isWhiteSpace(sourceFile.text.charCodeAt(pos)));
+ recordDelete(pos + 1, lineEndPosition - pos);
+ }
+ }
+ }
+ function newTextChange(start, len, newText) {
+ return { span: ts.createTextSpan(start, len), newText: newText };
+ }
+ function recordDelete(start, len) {
+ if (len) {
+ edits.push(newTextChange(start, len, ""));
+ }
+ }
+ function recordReplace(start, len, newText) {
+ if (len || newText) {
+ edits.push(newTextChange(start, len, newText));
+ }
+ }
+ function applyRuleEdits(rule, previousRange, previousStartLine, currentRange, currentStartLine) {
+ var between;
+ switch (rule.Operation.Action) {
+ case 1 /* Ignore */:
+ // no action required
+ return;
+ case 8 /* Delete */:
+ if (previousRange.end !== currentRange.pos) {
+ // delete characters starting from t1.end up to t2.pos exclusive
+ recordDelete(previousRange.end, currentRange.pos - previousRange.end);
+ }
+ break;
+ case 4 /* NewLine */:
+ // exit early if we on different lines and rule cannot change number of newlines
+ // if line1 and line2 are on subsequent lines then no edits are required - ok to exit
+ // if line1 and line2 are separated with more than one newline - ok to exit since we cannot delete extra new lines
+ if (rule.Flag !== 1 /* CanDeleteNewLines */ && previousStartLine !== currentStartLine) {
+ return;
+ }
+ // edit should not be applied only if we have one line feed between elements
+ var lineDelta = currentStartLine - previousStartLine;
+ if (lineDelta !== 1) {
+ recordReplace(previousRange.end, currentRange.pos - previousRange.end, options.NewLineCharacter);
+ }
+ break;
+ case 2 /* Space */:
+ // exit early if we on different lines and rule cannot change number of newlines
+ if (rule.Flag !== 1 /* CanDeleteNewLines */ && previousStartLine !== currentStartLine) {
+ return;
+ }
+ var posDelta = currentRange.pos - previousRange.end;
+ if (posDelta !== 1 || sourceFile.text.charCodeAt(previousRange.end) !== 32 /* space */) {
+ recordReplace(previousRange.end, currentRange.pos - previousRange.end, " ");
+ }
+ break;
+ }
+ }
+ }
+ function isSomeBlock(kind) {
+ switch (kind) {
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ return true;
+ }
+ return false;
+ }
+ function getOpenTokenForList(node, list) {
+ switch (node.kind) {
+ case 144 /* Constructor */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 174 /* ArrowFunction */:
+ if (node.typeParameters === list) {
+ return 25 /* LessThanToken */;
+ }
+ else if (node.parameters === list) {
+ return 17 /* OpenParenToken */;
+ }
+ break;
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ if (node.typeArguments === list) {
+ return 25 /* LessThanToken */;
+ }
+ else if (node.arguments === list) {
+ return 17 /* OpenParenToken */;
+ }
+ break;
+ case 151 /* TypeReference */:
+ if (node.typeArguments === list) {
+ return 25 /* LessThanToken */;
+ }
+ }
+ return 0 /* Unknown */;
+ }
+ function getCloseTokenForOpenToken(kind) {
+ switch (kind) {
+ case 17 /* OpenParenToken */:
+ return 18 /* CloseParenToken */;
+ case 25 /* LessThanToken */:
+ return 27 /* GreaterThanToken */;
+ }
+ return 0 /* Unknown */;
+ }
+ var internedSizes;
+ var internedTabsIndentation;
+ var internedSpacesIndentation;
+ function getIndentationString(indentation, options) {
+ // reset interned strings if FormatCodeOptions were changed
+ var resetInternedStrings = !internedSizes || (internedSizes.tabSize !== options.TabSize || internedSizes.indentSize !== options.IndentSize);
+ if (resetInternedStrings) {
+ internedSizes = { tabSize: options.TabSize, indentSize: options.IndentSize };
+ internedTabsIndentation = internedSpacesIndentation = undefined;
+ }
+ if (!options.ConvertTabsToSpaces) {
+ var tabs = Math.floor(indentation / options.TabSize);
+ var spaces = indentation - tabs * options.TabSize;
+ var tabString;
+ if (!internedTabsIndentation) {
+ internedTabsIndentation = [];
+ }
+ if (internedTabsIndentation[tabs] === undefined) {
+ internedTabsIndentation[tabs] = tabString = repeat('\t', tabs);
+ }
+ else {
+ tabString = internedTabsIndentation[tabs];
+ }
+ return spaces ? tabString + repeat(" ", spaces) : tabString;
+ }
+ else {
+ var spacesString;
+ var quotient = Math.floor(indentation / options.IndentSize);
+ var remainder = indentation % options.IndentSize;
+ if (!internedSpacesIndentation) {
+ internedSpacesIndentation = [];
+ }
+ if (internedSpacesIndentation[quotient] === undefined) {
+ spacesString = repeat(" ", options.IndentSize * quotient);
+ internedSpacesIndentation[quotient] = spacesString;
+ }
+ else {
+ spacesString = internedSpacesIndentation[quotient];
+ }
+ return remainder ? spacesString + repeat(" ", remainder) : spacesString;
+ }
+ function repeat(value, count) {
+ var s = "";
+ for (var i = 0; i < count; ++i) {
+ s += value;
+ }
+ return s;
+ }
+ }
+ formatting.getIndentationString = getIndentationString;
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+///<reference path='..\services.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var formatting;
+ (function (formatting) {
+ var SmartIndenter;
+ (function (SmartIndenter) {
+ var Value;
+ (function (Value) {
+ Value[Value["Unknown"] = -1] = "Unknown";
+ })(Value || (Value = {}));
+ function getIndentation(position, sourceFile, options) {
+ if (position > sourceFile.text.length) {
+ return 0; // past EOF
+ }
+ // no indentation when the indent style is set to none,
+ // so we can return fast
+ if (options.IndentStyle === ts.IndentStyle.None) {
+ return 0;
+ }
+ var precedingToken = ts.findPrecedingToken(position, sourceFile);
+ if (!precedingToken) {
+ return 0;
+ }
+ // no indentation in string \regex\template literals
+ var precedingTokenIsLiteral = ts.isStringOrRegularExpressionOrTemplateLiteral(precedingToken.kind);
+ if (precedingTokenIsLiteral && precedingToken.getStart(sourceFile) <= position && precedingToken.end > position) {
+ return 0;
+ }
+ var lineAtPosition = sourceFile.getLineAndCharacterOfPosition(position).line;
+ // indentation is first non-whitespace character in a previous line
+ // for block indentation, we should look for a line which contains something that's not
+ // whitespace.
+ if (options.IndentStyle === ts.IndentStyle.Block) {
+ // move backwards until we find a line with a non-whitespace character,
+ // then find the first non-whitespace character for that line.
+ var current_1 = position;
+ while (current_1 > 0) {
+ var char = sourceFile.text.charCodeAt(current_1);
+ if (!ts.isWhiteSpace(char) && !ts.isLineBreak(char)) {
+ break;
+ }
+ current_1--;
+ }
+ var lineStart = ts.getLineStartPositionForPosition(current_1, sourceFile);
+ return SmartIndenter.findFirstNonWhitespaceColumn(lineStart, current_1, sourceFile, options);
+ }
+ if (precedingToken.kind === 24 /* CommaToken */ && precedingToken.parent.kind !== 181 /* BinaryExpression */) {
+ // previous token is comma that separates items in list - find the previous item and try to derive indentation from it
+ var actualIndentation = getActualIndentationForListItemBeforeComma(precedingToken, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation;
+ }
+ }
+ // try to find node that can contribute to indentation and includes 'position' starting from 'precedingToken'
+ // if such node is found - compute initial indentation for 'position' inside this node
+ var previous;
+ var current = precedingToken;
+ var currentStart;
+ var indentationDelta;
+ while (current) {
+ if (ts.positionBelongsToNode(current, position, sourceFile) && shouldIndentChildNode(current.kind, previous ? previous.kind : 0 /* Unknown */)) {
+ currentStart = getStartLineAndCharacterForNode(current, sourceFile);
+ if (nextTokenIsCurlyBraceOnSameLineAsCursor(precedingToken, current, lineAtPosition, sourceFile)) {
+ indentationDelta = 0;
+ }
+ else {
+ indentationDelta = lineAtPosition !== currentStart.line ? options.IndentSize : 0;
+ }
+ break;
+ }
+ // check if current node is a list item - if yes, take indentation from it
+ var actualIndentation = getActualIndentationForListItem(current, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation;
+ }
+ actualIndentation = getLineIndentationWhenExpressionIsInMultiLine(current, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation + options.IndentSize;
+ }
+ previous = current;
+ current = current.parent;
+ }
+ if (!current) {
+ // no parent was found - return 0 to be indented on the level of SourceFile
+ return 0;
+ }
+ return getIndentationForNodeWorker(current, currentStart, /*ignoreActualIndentationRange*/ undefined, indentationDelta, sourceFile, options);
+ }
+ SmartIndenter.getIndentation = getIndentation;
+ function getIndentationForNode(n, ignoreActualIndentationRange, sourceFile, options) {
+ var start = sourceFile.getLineAndCharacterOfPosition(n.getStart(sourceFile));
+ return getIndentationForNodeWorker(n, start, ignoreActualIndentationRange, /*indentationDelta*/ 0, sourceFile, options);
+ }
+ SmartIndenter.getIndentationForNode = getIndentationForNode;
+ function getIndentationForNodeWorker(current, currentStart, ignoreActualIndentationRange, indentationDelta, sourceFile, options) {
+ var parent = current.parent;
+ var parentStart;
+ // walk upwards and collect indentations for pairs of parent-child nodes
+ // indentation is not added if parent and child nodes start on the same line or if parent is IfStatement and child starts on the same line with 'else clause'
+ while (parent) {
+ var useActualIndentation = true;
+ if (ignoreActualIndentationRange) {
+ var start = current.getStart(sourceFile);
+ useActualIndentation = start < ignoreActualIndentationRange.pos || start > ignoreActualIndentationRange.end;
+ }
+ if (useActualIndentation) {
+ // check if current node is a list item - if yes, take indentation from it
+ var actualIndentation = getActualIndentationForListItem(current, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation + indentationDelta;
+ }
+ }
+ parentStart = getParentStart(parent, current, sourceFile);
+ var parentAndChildShareLine = parentStart.line === currentStart.line ||
+ childStartsOnTheSameLineWithElseInIfStatement(parent, current, currentStart.line, sourceFile);
+ if (useActualIndentation) {
+ // try to fetch actual indentation for current node from source text
+ var actualIndentation = getActualIndentationForNode(current, parent, currentStart, parentAndChildShareLine, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation + indentationDelta;
+ }
+ actualIndentation = getLineIndentationWhenExpressionIsInMultiLine(current, sourceFile, options);
+ if (actualIndentation !== -1 /* Unknown */) {
+ return actualIndentation + indentationDelta;
+ }
+ }
+ // increase indentation if parent node wants its content to be indented and parent and child nodes don't start on the same line
+ if (shouldIndentChildNode(parent.kind, current.kind) && !parentAndChildShareLine) {
+ indentationDelta += options.IndentSize;
+ }
+ current = parent;
+ currentStart = parentStart;
+ parent = current.parent;
+ }
+ return indentationDelta;
+ }
+ function getParentStart(parent, child, sourceFile) {
+ var containingList = getContainingList(child, sourceFile);
+ if (containingList) {
+ return sourceFile.getLineAndCharacterOfPosition(containingList.pos);
+ }
+ return sourceFile.getLineAndCharacterOfPosition(parent.getStart(sourceFile));
+ }
+ /*
+ * Function returns Value.Unknown if indentation cannot be determined
+ */
+ function getActualIndentationForListItemBeforeComma(commaToken, sourceFile, options) {
+ // previous token is comma that separates items in list - find the previous item and try to derive indentation from it
+ var commaItemInfo = ts.findListItemInfo(commaToken);
+ if (commaItemInfo && commaItemInfo.listItemIndex > 0) {
+ return deriveActualIndentationFromList(commaItemInfo.list.getChildren(), commaItemInfo.listItemIndex - 1, sourceFile, options);
+ }
+ else {
+ // handle broken code gracefully
+ return -1 /* Unknown */;
+ }
+ }
+ /*
+ * Function returns Value.Unknown if actual indentation for node should not be used (i.e because node is nested expression)
+ */
+ function getActualIndentationForNode(current, parent, currentLineAndChar, parentAndChildShareLine, sourceFile, options) {
+ // actual indentation is used for statements\declarations if one of cases below is true:
+ // - parent is SourceFile - by default immediate children of SourceFile are not indented except when user indents them manually
+ // - parent and child are not on the same line
+ var useActualIndentation = (ts.isDeclaration(current) || ts.isStatement(current)) &&
+ (parent.kind === 248 /* SourceFile */ || !parentAndChildShareLine);
+ if (!useActualIndentation) {
+ return -1 /* Unknown */;
+ }
+ return findColumnForFirstNonWhitespaceCharacterInLine(currentLineAndChar, sourceFile, options);
+ }
+ function nextTokenIsCurlyBraceOnSameLineAsCursor(precedingToken, current, lineAtPosition, sourceFile) {
+ var nextToken = ts.findNextToken(precedingToken, current);
+ if (!nextToken) {
+ return false;
+ }
+ if (nextToken.kind === 15 /* OpenBraceToken */) {
+ // open braces are always indented at the parent level
+ return true;
+ }
+ else if (nextToken.kind === 16 /* CloseBraceToken */) {
+ // close braces are indented at the parent level if they are located on the same line with cursor
+ // this means that if new line will be added at $ position, this case will be indented
+ // class A {
+ // $
+ // }
+ /// and this one - not
+ // class A {
+ // $}
+ var nextTokenStartLine = getStartLineAndCharacterForNode(nextToken, sourceFile).line;
+ return lineAtPosition === nextTokenStartLine;
+ }
+ return false;
+ }
+ function getStartLineAndCharacterForNode(n, sourceFile) {
+ return sourceFile.getLineAndCharacterOfPosition(n.getStart(sourceFile));
+ }
+ function childStartsOnTheSameLineWithElseInIfStatement(parent, child, childStartLine, sourceFile) {
+ if (parent.kind === 196 /* IfStatement */ && parent.elseStatement === child) {
+ var elseKeyword = ts.findChildOfKind(parent, 80 /* ElseKeyword */, sourceFile);
+ ts.Debug.assert(elseKeyword !== undefined);
+ var elseKeywordStartLine = getStartLineAndCharacterForNode(elseKeyword, sourceFile).line;
+ return elseKeywordStartLine === childStartLine;
+ }
+ return false;
+ }
+ SmartIndenter.childStartsOnTheSameLineWithElseInIfStatement = childStartsOnTheSameLineWithElseInIfStatement;
+ function getContainingList(node, sourceFile) {
+ if (node.parent) {
+ switch (node.parent.kind) {
+ case 151 /* TypeReference */:
+ if (node.parent.typeArguments &&
+ ts.rangeContainsStartEnd(node.parent.typeArguments, node.getStart(sourceFile), node.getEnd())) {
+ return node.parent.typeArguments;
+ }
+ break;
+ case 165 /* ObjectLiteralExpression */:
+ return node.parent.properties;
+ case 164 /* ArrayLiteralExpression */:
+ return node.parent.elements;
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */: {
+ var start = node.getStart(sourceFile);
+ if (node.parent.typeParameters &&
+ ts.rangeContainsStartEnd(node.parent.typeParameters, start, node.getEnd())) {
+ return node.parent.typeParameters;
+ }
+ if (ts.rangeContainsStartEnd(node.parent.parameters, start, node.getEnd())) {
+ return node.parent.parameters;
+ }
+ break;
+ }
+ case 169 /* NewExpression */:
+ case 168 /* CallExpression */: {
+ var start = node.getStart(sourceFile);
+ if (node.parent.typeArguments &&
+ ts.rangeContainsStartEnd(node.parent.typeArguments, start, node.getEnd())) {
+ return node.parent.typeArguments;
+ }
+ if (node.parent.arguments &&
+ ts.rangeContainsStartEnd(node.parent.arguments, start, node.getEnd())) {
+ return node.parent.arguments;
+ }
+ break;
+ }
+ }
+ }
+ return undefined;
+ }
+ function getActualIndentationForListItem(node, sourceFile, options) {
+ var containingList = getContainingList(node, sourceFile);
+ return containingList ? getActualIndentationFromList(containingList) : -1 /* Unknown */;
+ function getActualIndentationFromList(list) {
+ var index = ts.indexOf(list, node);
+ return index !== -1 ? deriveActualIndentationFromList(list, index, sourceFile, options) : -1 /* Unknown */;
+ }
+ }
+ function getLineIndentationWhenExpressionIsInMultiLine(node, sourceFile, options) {
+ // actual indentation should not be used when:
+ // - node is close parenthesis - this is the end of the expression
+ if (node.kind === 18 /* CloseParenToken */) {
+ return -1 /* Unknown */;
+ }
+ if (node.parent && (node.parent.kind === 168 /* CallExpression */ ||
+ node.parent.kind === 169 /* NewExpression */) &&
+ node.parent.expression !== node) {
+ var fullCallOrNewExpression = node.parent.expression;
+ var startingExpression = getStartingExpression(fullCallOrNewExpression);
+ if (fullCallOrNewExpression === startingExpression) {
+ return -1 /* Unknown */;
+ }
+ var fullCallOrNewExpressionEnd = sourceFile.getLineAndCharacterOfPosition(fullCallOrNewExpression.end);
+ var startingExpressionEnd = sourceFile.getLineAndCharacterOfPosition(startingExpression.end);
+ if (fullCallOrNewExpressionEnd.line === startingExpressionEnd.line) {
+ return -1 /* Unknown */;
+ }
+ return findColumnForFirstNonWhitespaceCharacterInLine(fullCallOrNewExpressionEnd, sourceFile, options);
+ }
+ return -1 /* Unknown */;
+ function getStartingExpression(node) {
+ while (true) {
+ switch (node.kind) {
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 166 /* PropertyAccessExpression */:
+ case 167 /* ElementAccessExpression */:
+ node = node.expression;
+ break;
+ default:
+ return node;
+ }
+ }
+ return node;
+ }
+ }
+ function deriveActualIndentationFromList(list, index, sourceFile, options) {
+ ts.Debug.assert(index >= 0 && index < list.length);
+ var node = list[index];
+ // walk toward the start of the list starting from current node and check if the line is the same for all items.
+ // if end line for item [i - 1] differs from the start line for item [i] - find column of the first non-whitespace character on the line of item [i]
+ var lineAndCharacter = getStartLineAndCharacterForNode(node, sourceFile);
+ for (var i = index - 1; i >= 0; --i) {
+ if (list[i].kind === 24 /* CommaToken */) {
+ continue;
+ }
+ // skip list items that ends on the same line with the current list element
+ var prevEndLine = sourceFile.getLineAndCharacterOfPosition(list[i].end).line;
+ if (prevEndLine !== lineAndCharacter.line) {
+ return findColumnForFirstNonWhitespaceCharacterInLine(lineAndCharacter, sourceFile, options);
+ }
+ lineAndCharacter = getStartLineAndCharacterForNode(list[i], sourceFile);
+ }
+ return -1 /* Unknown */;
+ }
+ function findColumnForFirstNonWhitespaceCharacterInLine(lineAndCharacter, sourceFile, options) {
+ var lineStart = sourceFile.getPositionOfLineAndCharacter(lineAndCharacter.line, 0);
+ return findFirstNonWhitespaceColumn(lineStart, lineStart + lineAndCharacter.character, sourceFile, options);
+ }
+ /*
+ Character is the actual index of the character since the beginning of the line.
+ Column - position of the character after expanding tabs to spaces
+ "0\t2$"
+ value of 'character' for '$' is 3
+ value of 'column' for '$' is 6 (assuming that tab size is 4)
+ */
+ function findFirstNonWhitespaceCharacterAndColumn(startPos, endPos, sourceFile, options) {
+ var character = 0;
+ var column = 0;
+ for (var pos = startPos; pos < endPos; ++pos) {
+ var ch = sourceFile.text.charCodeAt(pos);
+ if (!ts.isWhiteSpace(ch)) {
+ break;
+ }
+ if (ch === 9 /* tab */) {
+ column += options.TabSize + (column % options.TabSize);
+ }
+ else {
+ column++;
+ }
+ character++;
+ }
+ return { column: column, character: character };
+ }
+ SmartIndenter.findFirstNonWhitespaceCharacterAndColumn = findFirstNonWhitespaceCharacterAndColumn;
+ function findFirstNonWhitespaceColumn(startPos, endPos, sourceFile, options) {
+ return findFirstNonWhitespaceCharacterAndColumn(startPos, endPos, sourceFile, options).column;
+ }
+ SmartIndenter.findFirstNonWhitespaceColumn = findFirstNonWhitespaceColumn;
+ function nodeContentIsAlwaysIndented(kind) {
+ switch (kind) {
+ case 195 /* ExpressionStatement */:
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 164 /* ArrayLiteralExpression */:
+ case 192 /* Block */:
+ case 219 /* ModuleBlock */:
+ case 165 /* ObjectLiteralExpression */:
+ case 155 /* TypeLiteral */:
+ case 157 /* TupleType */:
+ case 220 /* CaseBlock */:
+ case 242 /* DefaultClause */:
+ case 241 /* CaseClause */:
+ case 172 /* ParenthesizedExpression */:
+ case 166 /* PropertyAccessExpression */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ case 193 /* VariableStatement */:
+ case 211 /* VariableDeclaration */:
+ case 227 /* ExportAssignment */:
+ case 204 /* ReturnStatement */:
+ case 182 /* ConditionalExpression */:
+ case 162 /* ArrayBindingPattern */:
+ case 161 /* ObjectBindingPattern */:
+ case 233 /* JsxElement */:
+ case 234 /* JsxSelfClosingElement */:
+ case 142 /* MethodSignature */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 138 /* Parameter */:
+ case 152 /* FunctionType */:
+ case 153 /* ConstructorType */:
+ case 160 /* ParenthesizedType */:
+ case 170 /* TaggedTemplateExpression */:
+ case 178 /* AwaitExpression */:
+ return true;
+ }
+ return false;
+ }
+ function shouldIndentChildNode(parent, child) {
+ if (nodeContentIsAlwaysIndented(parent)) {
+ return true;
+ }
+ switch (parent) {
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 199 /* ForStatement */:
+ case 196 /* IfStatement */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 143 /* MethodDeclaration */:
+ case 174 /* ArrowFunction */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ return child !== 192 /* Block */;
+ default:
+ return false;
+ }
+ }
+ SmartIndenter.shouldIndentChildNode = shouldIndentChildNode;
+ })(SmartIndenter = formatting.SmartIndenter || (formatting.SmartIndenter = {}));
+ })(formatting = ts.formatting || (ts.formatting = {}));
+})(ts || (ts = {}));
+/// <reference path="..\compiler\program.ts"/>
+var __extends = (this && this.__extends) || function (d, b) {
+ for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+ function __() { this.constructor = d; }
+ d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+};
+/// <reference path='breakpoints.ts' />
+/// <reference path='outliningElementsCollector.ts' />
+/// <reference path='navigateTo.ts' />
+/// <reference path='navigationBar.ts' />
+/// <reference path='patternMatcher.ts' />
+/// <reference path='signatureHelp.ts' />
+/// <reference path='utilities.ts' />
+/// <reference path='formatting\formatting.ts' />
+/// <reference path='formatting\smartIndenter.ts' />
+var ts;
+(function (ts) {
+ /** The version of the language service API */
+ ts.servicesVersion = "0.4";
+ var ScriptSnapshot;
+ (function (ScriptSnapshot) {
+ var StringScriptSnapshot = (function () {
+ function StringScriptSnapshot(text) {
+ this.text = text;
+ }
+ StringScriptSnapshot.prototype.getText = function (start, end) {
+ return this.text.substring(start, end);
+ };
+ StringScriptSnapshot.prototype.getLength = function () {
+ return this.text.length;
+ };
+ StringScriptSnapshot.prototype.getChangeRange = function (oldSnapshot) {
+ // Text-based snapshots do not support incremental parsing. Return undefined
+ // to signal that to the caller.
+ return undefined;
+ };
+ return StringScriptSnapshot;
+ })();
+ function fromString(text) {
+ return new StringScriptSnapshot(text);
+ }
+ ScriptSnapshot.fromString = fromString;
+ })(ScriptSnapshot = ts.ScriptSnapshot || (ts.ScriptSnapshot = {}));
+ var scanner = ts.createScanner(2 /* Latest */, /*skipTrivia*/ true);
+ var emptyArray = [];
+ var jsDocTagNames = [
+ "augments",
+ "author",
+ "argument",
+ "borrows",
+ "class",
+ "constant",
+ "constructor",
+ "constructs",
+ "default",
+ "deprecated",
+ "description",
+ "event",
+ "example",
+ "extends",
+ "field",
+ "fileOverview",
+ "function",
+ "ignore",
+ "inner",
+ "lends",
+ "link",
+ "memberOf",
+ "name",
+ "namespace",
+ "param",
+ "private",
+ "property",
+ "public",
+ "requires",
+ "returns",
+ "see",
+ "since",
+ "static",
+ "throws",
+ "type",
+ "version"
+ ];
+ var jsDocCompletionEntries;
+ function createNode(kind, pos, end, flags, parent) {
+ var node = new (ts.getNodeConstructor(kind))();
+ node.pos = pos;
+ node.end = end;
+ node.flags = flags;
+ node.parent = parent;
+ return node;
+ }
+ var NodeObject = (function () {
+ function NodeObject() {
+ }
+ NodeObject.prototype.getSourceFile = function () {
+ return ts.getSourceFileOfNode(this);
+ };
+ NodeObject.prototype.getStart = function (sourceFile) {
+ return ts.getTokenPosOfNode(this, sourceFile);
+ };
+ NodeObject.prototype.getFullStart = function () {
+ return this.pos;
+ };
+ NodeObject.prototype.getEnd = function () {
+ return this.end;
+ };
+ NodeObject.prototype.getWidth = function (sourceFile) {
+ return this.getEnd() - this.getStart(sourceFile);
+ };
+ NodeObject.prototype.getFullWidth = function () {
+ return this.end - this.pos;
+ };
+ NodeObject.prototype.getLeadingTriviaWidth = function (sourceFile) {
+ return this.getStart(sourceFile) - this.pos;
+ };
+ NodeObject.prototype.getFullText = function (sourceFile) {
+ return (sourceFile || this.getSourceFile()).text.substring(this.pos, this.end);
+ };
+ NodeObject.prototype.getText = function (sourceFile) {
+ return (sourceFile || this.getSourceFile()).text.substring(this.getStart(), this.getEnd());
+ };
+ NodeObject.prototype.addSyntheticNodes = function (nodes, pos, end) {
+ scanner.setTextPos(pos);
+ while (pos < end) {
+ var token = scanner.scan();
+ var textPos = scanner.getTextPos();
+ nodes.push(createNode(token, pos, textPos, 4096 /* Synthetic */, this));
+ pos = textPos;
+ }
+ return pos;
+ };
+ NodeObject.prototype.createSyntaxList = function (nodes) {
+ var list = createNode(271 /* SyntaxList */, nodes.pos, nodes.end, 4096 /* Synthetic */, this);
+ list._children = [];
+ var pos = nodes.pos;
+ for (var _i = 0; _i < nodes.length; _i++) {
+ var node = nodes[_i];
+ if (pos < node.pos) {
+ pos = this.addSyntheticNodes(list._children, pos, node.pos);
+ }
+ list._children.push(node);
+ pos = node.end;
+ }
+ if (pos < nodes.end) {
+ this.addSyntheticNodes(list._children, pos, nodes.end);
+ }
+ return list;
+ };
+ NodeObject.prototype.createChildren = function (sourceFile) {
+ var _this = this;
+ var children;
+ if (this.kind >= 135 /* FirstNode */) {
+ scanner.setText((sourceFile || this.getSourceFile()).text);
+ children = [];
+ var pos = this.pos;
+ var processNode = function (node) {
+ if (pos < node.pos) {
+ pos = _this.addSyntheticNodes(children, pos, node.pos);
+ }
+ children.push(node);
+ pos = node.end;
+ };
+ var processNodes = function (nodes) {
+ if (pos < nodes.pos) {
+ pos = _this.addSyntheticNodes(children, pos, nodes.pos);
+ }
+ children.push(_this.createSyntaxList(nodes));
+ pos = nodes.end;
+ };
+ ts.forEachChild(this, processNode, processNodes);
+ if (pos < this.end) {
+ this.addSyntheticNodes(children, pos, this.end);
+ }
+ scanner.setText(undefined);
+ }
+ this._children = children || emptyArray;
+ };
+ NodeObject.prototype.getChildCount = function (sourceFile) {
+ if (!this._children)
+ this.createChildren(sourceFile);
+ return this._children.length;
+ };
+ NodeObject.prototype.getChildAt = function (index, sourceFile) {
+ if (!this._children)
+ this.createChildren(sourceFile);
+ return this._children[index];
+ };
+ NodeObject.prototype.getChildren = function (sourceFile) {
+ if (!this._children)
+ this.createChildren(sourceFile);
+ return this._children;
+ };
+ NodeObject.prototype.getFirstToken = function (sourceFile) {
+ var children = this.getChildren(sourceFile);
+ if (!children.length) {
+ return undefined;
+ }
+ var child = children[0];
+ return child.kind < 135 /* FirstNode */ ? child : child.getFirstToken(sourceFile);
+ };
+ NodeObject.prototype.getLastToken = function (sourceFile) {
+ var children = this.getChildren(sourceFile);
+ var child = ts.lastOrUndefined(children);
+ if (!child) {
+ return undefined;
+ }
+ return child.kind < 135 /* FirstNode */ ? child : child.getLastToken(sourceFile);
+ };
+ return NodeObject;
+ })();
+ var SymbolObject = (function () {
+ function SymbolObject(flags, name) {
+ this.flags = flags;
+ this.name = name;
+ }
+ SymbolObject.prototype.getFlags = function () {
+ return this.flags;
+ };
+ SymbolObject.prototype.getName = function () {
+ return this.name;
+ };
+ SymbolObject.prototype.getDeclarations = function () {
+ return this.declarations;
+ };
+ SymbolObject.prototype.getDocumentationComment = function () {
+ if (this.documentationComment === undefined) {
+ this.documentationComment = getJsDocCommentsFromDeclarations(this.declarations, this.name, !(this.flags & 4 /* Property */));
+ }
+ return this.documentationComment;
+ };
+ return SymbolObject;
+ })();
+ function getJsDocCommentsFromDeclarations(declarations, name, canUseParsedParamTagComments) {
+ var documentationComment = [];
+ var docComments = getJsDocCommentsSeparatedByNewLines();
+ ts.forEach(docComments, function (docComment) {
+ if (documentationComment.length) {
+ documentationComment.push(ts.lineBreakPart());
+ }
+ documentationComment.push(docComment);
+ });
+ return documentationComment;
+ function getJsDocCommentsSeparatedByNewLines() {
+ var paramTag = "@param";
+ var jsDocCommentParts = [];
+ ts.forEach(declarations, function (declaration, indexOfDeclaration) {
+ // Make sure we are collecting doc comment from declaration once,
+ // In case of union property there might be same declaration multiple times
+ // which only varies in type parameter
+ // Eg. let a: Array<string> | Array<number>; a.length
+ // The property length will have two declarations of property length coming
+ // from Array<T> - Array<string> and Array<number>
+ if (ts.indexOf(declarations, declaration) === indexOfDeclaration) {
+ var sourceFileOfDeclaration = ts.getSourceFileOfNode(declaration);
+ // If it is parameter - try and get the jsDoc comment with @param tag from function declaration's jsDoc comments
+ if (canUseParsedParamTagComments && declaration.kind === 138 /* Parameter */) {
+ ts.forEach(getJsDocCommentTextRange(declaration.parent, sourceFileOfDeclaration), function (jsDocCommentTextRange) {
+ var cleanedParamJsDocComment = getCleanedParamJsDocComment(jsDocCommentTextRange.pos, jsDocCommentTextRange.end, sourceFileOfDeclaration);
+ if (cleanedParamJsDocComment) {
+ ts.addRange(jsDocCommentParts, cleanedParamJsDocComment);
+ }
+ });
+ }
+ // If this is left side of dotted module declaration, there is no doc comments associated with this node
+ if (declaration.kind === 218 /* ModuleDeclaration */ && declaration.body.kind === 218 /* ModuleDeclaration */) {
+ return;
+ }
+ // If this is dotted module name, get the doc comments from the parent
+ while (declaration.kind === 218 /* ModuleDeclaration */ && declaration.parent.kind === 218 /* ModuleDeclaration */) {
+ declaration = declaration.parent;
+ }
+ // Get the cleaned js doc comment text from the declaration
+ ts.forEach(getJsDocCommentTextRange(declaration.kind === 211 /* VariableDeclaration */ ? declaration.parent.parent : declaration, sourceFileOfDeclaration), function (jsDocCommentTextRange) {
+ var cleanedJsDocComment = getCleanedJsDocComment(jsDocCommentTextRange.pos, jsDocCommentTextRange.end, sourceFileOfDeclaration);
+ if (cleanedJsDocComment) {
+ ts.addRange(jsDocCommentParts, cleanedJsDocComment);
+ }
+ });
+ }
+ });
+ return jsDocCommentParts;
+ function getJsDocCommentTextRange(node, sourceFile) {
+ return ts.map(ts.getJsDocComments(node, sourceFile), function (jsDocComment) {
+ return {
+ pos: jsDocComment.pos + "/*".length,
+ end: jsDocComment.end - "*/".length // Trim off comment end indicator
+ };
+ });
+ }
+ function consumeWhiteSpacesOnTheLine(pos, end, sourceFile, maxSpacesToRemove) {
+ if (maxSpacesToRemove !== undefined) {
+ end = Math.min(end, pos + maxSpacesToRemove);
+ }
+ for (; pos < end; pos++) {
+ var ch = sourceFile.text.charCodeAt(pos);
+ if (!ts.isWhiteSpace(ch) || ts.isLineBreak(ch)) {
+ // Either found lineBreak or non whiteSpace
+ return pos;
+ }
+ }
+ return end;
+ }
+ function consumeLineBreaks(pos, end, sourceFile) {
+ while (pos < end && ts.isLineBreak(sourceFile.text.charCodeAt(pos))) {
+ pos++;
+ }
+ return pos;
+ }
+ function isName(pos, end, sourceFile, name) {
+ return pos + name.length < end &&
+ sourceFile.text.substr(pos, name.length) === name &&
+ (ts.isWhiteSpace(sourceFile.text.charCodeAt(pos + name.length)) ||
+ ts.isLineBreak(sourceFile.text.charCodeAt(pos + name.length)));
+ }
+ function isParamTag(pos, end, sourceFile) {
+ // If it is @param tag
+ return isName(pos, end, sourceFile, paramTag);
+ }
+ function pushDocCommentLineText(docComments, text, blankLineCount) {
+ // Add the empty lines in between texts
+ while (blankLineCount--) {
+ docComments.push(ts.textPart(""));
+ }
+ docComments.push(ts.textPart(text));
+ }
+ function getCleanedJsDocComment(pos, end, sourceFile) {
+ var spacesToRemoveAfterAsterisk;
+ var docComments = [];
+ var blankLineCount = 0;
+ var isInParamTag = false;
+ while (pos < end) {
+ var docCommentTextOfLine = "";
+ // First consume leading white space
+ pos = consumeWhiteSpacesOnTheLine(pos, end, sourceFile);
+ // If the comment starts with '*' consume the spaces on this line
+ if (pos < end && sourceFile.text.charCodeAt(pos) === 42 /* asterisk */) {
+ var lineStartPos = pos + 1;
+ pos = consumeWhiteSpacesOnTheLine(pos + 1, end, sourceFile, spacesToRemoveAfterAsterisk);
+ // Set the spaces to remove after asterisk as margin if not already set
+ if (spacesToRemoveAfterAsterisk === undefined && pos < end && !ts.isLineBreak(sourceFile.text.charCodeAt(pos))) {
+ spacesToRemoveAfterAsterisk = pos - lineStartPos;
+ }
+ }
+ else if (spacesToRemoveAfterAsterisk === undefined) {
+ spacesToRemoveAfterAsterisk = 0;
+ }
+ // Analyse text on this line
+ while (pos < end && !ts.isLineBreak(sourceFile.text.charCodeAt(pos))) {
+ var ch = sourceFile.text.charAt(pos);
+ if (ch === "@") {
+ // If it is @param tag
+ if (isParamTag(pos, end, sourceFile)) {
+ isInParamTag = true;
+ pos += paramTag.length;
+ continue;
+ }
+ else {
+ isInParamTag = false;
+ }
+ }
+ // Add the ch to doc text if we arent in param tag
+ if (!isInParamTag) {
+ docCommentTextOfLine += ch;
+ }
+ // Scan next character
+ pos++;
+ }
+ // Continue with next line
+ pos = consumeLineBreaks(pos, end, sourceFile);
+ if (docCommentTextOfLine) {
+ pushDocCommentLineText(docComments, docCommentTextOfLine, blankLineCount);
+ blankLineCount = 0;
+ }
+ else if (!isInParamTag && docComments.length) {
+ // This is blank line when there is text already parsed
+ blankLineCount++;
+ }
+ }
+ return docComments;
+ }
+ function getCleanedParamJsDocComment(pos, end, sourceFile) {
+ var paramHelpStringMargin;
+ var paramDocComments = [];
+ while (pos < end) {
+ if (isParamTag(pos, end, sourceFile)) {
+ var blankLineCount = 0;
+ var recordedParamTag = false;
+ // Consume leading spaces
+ pos = consumeWhiteSpaces(pos + paramTag.length);
+ if (pos >= end) {
+ break;
+ }
+ // Ignore type expression
+ if (sourceFile.text.charCodeAt(pos) === 123 /* openBrace */) {
+ pos++;
+ for (var curlies = 1; pos < end; pos++) {
+ var charCode = sourceFile.text.charCodeAt(pos);
+ // { character means we need to find another } to match the found one
+ if (charCode === 123 /* openBrace */) {
+ curlies++;
+ continue;
+ }
+ // } char
+ if (charCode === 125 /* closeBrace */) {
+ curlies--;
+ if (curlies === 0) {
+ // We do not have any more } to match the type expression is ignored completely
+ pos++;
+ break;
+ }
+ else {
+ // there are more { to be matched with }
+ continue;
+ }
+ }
+ // Found start of another tag
+ if (charCode === 64 /* at */) {
+ break;
+ }
+ }
+ // Consume white spaces
+ pos = consumeWhiteSpaces(pos);
+ if (pos >= end) {
+ break;
+ }
+ }
+ // Parameter name
+ if (isName(pos, end, sourceFile, name)) {
+ // Found the parameter we are looking for consume white spaces
+ pos = consumeWhiteSpaces(pos + name.length);
+ if (pos >= end) {
+ break;
+ }
+ var paramHelpString = "";
+ var firstLineParamHelpStringPos = pos;
+ while (pos < end) {
+ var ch = sourceFile.text.charCodeAt(pos);
+ // at line break, set this comment line text and go to next line
+ if (ts.isLineBreak(ch)) {
+ if (paramHelpString) {
+ pushDocCommentLineText(paramDocComments, paramHelpString, blankLineCount);
+ paramHelpString = "";
+ blankLineCount = 0;
+ recordedParamTag = true;
+ }
+ else if (recordedParamTag) {
+ blankLineCount++;
+ }
+ // Get the pos after cleaning start of the line
+ setPosForParamHelpStringOnNextLine(firstLineParamHelpStringPos);
+ continue;
+ }
+ // Done scanning param help string - next tag found
+ if (ch === 64 /* at */) {
+ break;
+ }
+ paramHelpString += sourceFile.text.charAt(pos);
+ // Go to next character
+ pos++;
+ }
+ // If there is param help text, add it top the doc comments
+ if (paramHelpString) {
+ pushDocCommentLineText(paramDocComments, paramHelpString, blankLineCount);
+ }
+ paramHelpStringMargin = undefined;
+ }
+ // If this is the start of another tag, continue with the loop in seach of param tag with symbol name
+ if (sourceFile.text.charCodeAt(pos) === 64 /* at */) {
+ continue;
+ }
+ }
+ // Next character
+ pos++;
+ }
+ return paramDocComments;
+ function consumeWhiteSpaces(pos) {
+ while (pos < end && ts.isWhiteSpace(sourceFile.text.charCodeAt(pos))) {
+ pos++;
+ }
+ return pos;
+ }
+ function setPosForParamHelpStringOnNextLine(firstLineParamHelpStringPos) {
+ // Get the pos after consuming line breaks
+ pos = consumeLineBreaks(pos, end, sourceFile);
+ if (pos >= end) {
+ return;
+ }
+ if (paramHelpStringMargin === undefined) {
+ paramHelpStringMargin = sourceFile.getLineAndCharacterOfPosition(firstLineParamHelpStringPos).character;
+ }
+ // Now consume white spaces max
+ var startOfLinePos = pos;
+ pos = consumeWhiteSpacesOnTheLine(pos, end, sourceFile, paramHelpStringMargin);
+ if (pos >= end) {
+ return;
+ }
+ var consumedSpaces = pos - startOfLinePos;
+ if (consumedSpaces < paramHelpStringMargin) {
+ var ch = sourceFile.text.charCodeAt(pos);
+ if (ch === 42 /* asterisk */) {
+ // Consume more spaces after asterisk
+ pos = consumeWhiteSpacesOnTheLine(pos + 1, end, sourceFile, paramHelpStringMargin - consumedSpaces - 1);
+ }
+ }
+ }
+ }
+ }
+ }
+ var TypeObject = (function () {
+ function TypeObject(checker, flags) {
+ this.checker = checker;
+ this.flags = flags;
+ }
+ TypeObject.prototype.getFlags = function () {
+ return this.flags;
+ };
+ TypeObject.prototype.getSymbol = function () {
+ return this.symbol;
+ };
+ TypeObject.prototype.getProperties = function () {
+ return this.checker.getPropertiesOfType(this);
+ };
+ TypeObject.prototype.getProperty = function (propertyName) {
+ return this.checker.getPropertyOfType(this, propertyName);
+ };
+ TypeObject.prototype.getApparentProperties = function () {
+ return this.checker.getAugmentedPropertiesOfType(this);
+ };
+ TypeObject.prototype.getCallSignatures = function () {
+ return this.checker.getSignaturesOfType(this, 0 /* Call */);
+ };
+ TypeObject.prototype.getConstructSignatures = function () {
+ return this.checker.getSignaturesOfType(this, 1 /* Construct */);
+ };
+ TypeObject.prototype.getStringIndexType = function () {
+ return this.checker.getIndexTypeOfType(this, 0 /* String */);
+ };
+ TypeObject.prototype.getNumberIndexType = function () {
+ return this.checker.getIndexTypeOfType(this, 1 /* Number */);
+ };
+ TypeObject.prototype.getBaseTypes = function () {
+ return this.flags & (1024 /* Class */ | 2048 /* Interface */)
+ ? this.checker.getBaseTypes(this)
+ : undefined;
+ };
+ return TypeObject;
+ })();
+ var SignatureObject = (function () {
+ function SignatureObject(checker) {
+ this.checker = checker;
+ }
+ SignatureObject.prototype.getDeclaration = function () {
+ return this.declaration;
+ };
+ SignatureObject.prototype.getTypeParameters = function () {
+ return this.typeParameters;
+ };
+ SignatureObject.prototype.getParameters = function () {
+ return this.parameters;
+ };
+ SignatureObject.prototype.getReturnType = function () {
+ return this.checker.getReturnTypeOfSignature(this);
+ };
+ SignatureObject.prototype.getDocumentationComment = function () {
+ if (this.documentationComment === undefined) {
+ this.documentationComment = this.declaration ? getJsDocCommentsFromDeclarations([this.declaration],
+ /*name*/ undefined,
+ /*canUseParsedParamTagComments*/ false) : [];
+ }
+ return this.documentationComment;
+ };
+ return SignatureObject;
+ })();
+ var SourceFileObject = (function (_super) {
+ __extends(SourceFileObject, _super);
+ function SourceFileObject() {
+ _super.apply(this, arguments);
+ }
+ SourceFileObject.prototype.update = function (newText, textChangeRange) {
+ return ts.updateSourceFile(this, newText, textChangeRange);
+ };
+ SourceFileObject.prototype.getLineAndCharacterOfPosition = function (position) {
+ return ts.getLineAndCharacterOfPosition(this, position);
+ };
+ SourceFileObject.prototype.getLineStarts = function () {
+ return ts.getLineStarts(this);
+ };
+ SourceFileObject.prototype.getPositionOfLineAndCharacter = function (line, character) {
+ return ts.getPositionOfLineAndCharacter(this, line, character);
+ };
+ SourceFileObject.prototype.getNamedDeclarations = function () {
+ if (!this.namedDeclarations) {
+ this.namedDeclarations = this.computeNamedDeclarations();
+ }
+ return this.namedDeclarations;
+ };
+ SourceFileObject.prototype.computeNamedDeclarations = function () {
+ var result = {};
+ ts.forEachChild(this, visit);
+ return result;
+ function addDeclaration(declaration) {
+ var name = getDeclarationName(declaration);
+ if (name) {
+ var declarations = getDeclarations(name);
+ declarations.push(declaration);
+ }
+ }
+ function getDeclarations(name) {
+ return ts.getProperty(result, name) || (result[name] = []);
+ }
+ function getDeclarationName(declaration) {
+ if (declaration.name) {
+ var result_2 = getTextOfIdentifierOrLiteral(declaration.name);
+ if (result_2 !== undefined) {
+ return result_2;
+ }
+ if (declaration.name.kind === 136 /* ComputedPropertyName */) {
+ var expr = declaration.name.expression;
+ if (expr.kind === 166 /* PropertyAccessExpression */) {
+ return expr.name.text;
+ }
+ return getTextOfIdentifierOrLiteral(expr);
+ }
+ }
+ return undefined;
+ }
+ function getTextOfIdentifierOrLiteral(node) {
+ if (node) {
+ if (node.kind === 69 /* Identifier */ ||
+ node.kind === 9 /* StringLiteral */ ||
+ node.kind === 8 /* NumericLiteral */) {
+ return node.text;
+ }
+ }
+ return undefined;
+ }
+ function visit(node) {
+ switch (node.kind) {
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ var functionDeclaration = node;
+ var declarationName = getDeclarationName(functionDeclaration);
+ if (declarationName) {
+ var declarations = getDeclarations(declarationName);
+ var lastDeclaration = ts.lastOrUndefined(declarations);
+ // Check whether this declaration belongs to an "overload group".
+ if (lastDeclaration && functionDeclaration.parent === lastDeclaration.parent && functionDeclaration.symbol === lastDeclaration.symbol) {
+ // Overwrite the last declaration if it was an overload
+ // and this one is an implementation.
+ if (functionDeclaration.body && !lastDeclaration.body) {
+ declarations[declarations.length - 1] = functionDeclaration;
+ }
+ }
+ else {
+ declarations.push(functionDeclaration);
+ }
+ ts.forEachChild(node, visit);
+ }
+ break;
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 230 /* ExportSpecifier */:
+ case 226 /* ImportSpecifier */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 223 /* ImportClause */:
+ case 224 /* NamespaceImport */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 155 /* TypeLiteral */:
+ addDeclaration(node);
+ // fall through
+ case 144 /* Constructor */:
+ case 193 /* VariableStatement */:
+ case 212 /* VariableDeclarationList */:
+ case 161 /* ObjectBindingPattern */:
+ case 162 /* ArrayBindingPattern */:
+ case 219 /* ModuleBlock */:
+ ts.forEachChild(node, visit);
+ break;
+ case 192 /* Block */:
+ if (ts.isFunctionBlock(node)) {
+ ts.forEachChild(node, visit);
+ }
+ break;
+ case 138 /* Parameter */:
+ // Only consider properties defined as constructor parameters
+ if (!(node.flags & 112 /* AccessibilityModifier */)) {
+ break;
+ }
+ // fall through
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ if (ts.isBindingPattern(node.name)) {
+ ts.forEachChild(node.name, visit);
+ break;
+ }
+ case 247 /* EnumMember */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ addDeclaration(node);
+ break;
+ case 228 /* ExportDeclaration */:
+ // Handle named exports case e.g.:
+ // export {a, b as B} from "mod";
+ if (node.exportClause) {
+ ts.forEach(node.exportClause.elements, visit);
+ }
+ break;
+ case 222 /* ImportDeclaration */:
+ var importClause = node.importClause;
+ if (importClause) {
+ // Handle default import case e.g.:
+ // import d from "mod";
+ if (importClause.name) {
+ addDeclaration(importClause);
+ }
+ // Handle named bindings in imports e.g.:
+ // import * as NS from "mod";
+ // import {a, b as B} from "mod";
+ if (importClause.namedBindings) {
+ if (importClause.namedBindings.kind === 224 /* NamespaceImport */) {
+ addDeclaration(importClause.namedBindings);
+ }
+ else {
+ ts.forEach(importClause.namedBindings.elements, visit);
+ }
+ }
+ }
+ break;
+ }
+ }
+ };
+ return SourceFileObject;
+ })(NodeObject);
+ var TextChange = (function () {
+ function TextChange() {
+ }
+ return TextChange;
+ })();
+ ts.TextChange = TextChange;
+ var HighlightSpanKind;
+ (function (HighlightSpanKind) {
+ HighlightSpanKind.none = "none";
+ HighlightSpanKind.definition = "definition";
+ HighlightSpanKind.reference = "reference";
+ HighlightSpanKind.writtenReference = "writtenReference";
+ })(HighlightSpanKind = ts.HighlightSpanKind || (ts.HighlightSpanKind = {}));
+ (function (IndentStyle) {
+ IndentStyle[IndentStyle["None"] = 0] = "None";
+ IndentStyle[IndentStyle["Block"] = 1] = "Block";
+ IndentStyle[IndentStyle["Smart"] = 2] = "Smart";
+ })(ts.IndentStyle || (ts.IndentStyle = {}));
+ var IndentStyle = ts.IndentStyle;
+ (function (SymbolDisplayPartKind) {
+ SymbolDisplayPartKind[SymbolDisplayPartKind["aliasName"] = 0] = "aliasName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["className"] = 1] = "className";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["enumName"] = 2] = "enumName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["fieldName"] = 3] = "fieldName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["interfaceName"] = 4] = "interfaceName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["keyword"] = 5] = "keyword";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["lineBreak"] = 6] = "lineBreak";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["numericLiteral"] = 7] = "numericLiteral";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["stringLiteral"] = 8] = "stringLiteral";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["localName"] = 9] = "localName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["methodName"] = 10] = "methodName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["moduleName"] = 11] = "moduleName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["operator"] = 12] = "operator";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["parameterName"] = 13] = "parameterName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["propertyName"] = 14] = "propertyName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["punctuation"] = 15] = "punctuation";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["space"] = 16] = "space";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["text"] = 17] = "text";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["typeParameterName"] = 18] = "typeParameterName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["enumMemberName"] = 19] = "enumMemberName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["functionName"] = 20] = "functionName";
+ SymbolDisplayPartKind[SymbolDisplayPartKind["regularExpressionLiteral"] = 21] = "regularExpressionLiteral";
+ })(ts.SymbolDisplayPartKind || (ts.SymbolDisplayPartKind = {}));
+ var SymbolDisplayPartKind = ts.SymbolDisplayPartKind;
+ (function (OutputFileType) {
+ OutputFileType[OutputFileType["JavaScript"] = 0] = "JavaScript";
+ OutputFileType[OutputFileType["SourceMap"] = 1] = "SourceMap";
+ OutputFileType[OutputFileType["Declaration"] = 2] = "Declaration";
+ })(ts.OutputFileType || (ts.OutputFileType = {}));
+ var OutputFileType = ts.OutputFileType;
+ (function (EndOfLineState) {
+ EndOfLineState[EndOfLineState["None"] = 0] = "None";
+ EndOfLineState[EndOfLineState["InMultiLineCommentTrivia"] = 1] = "InMultiLineCommentTrivia";
+ EndOfLineState[EndOfLineState["InSingleQuoteStringLiteral"] = 2] = "InSingleQuoteStringLiteral";
+ EndOfLineState[EndOfLineState["InDoubleQuoteStringLiteral"] = 3] = "InDoubleQuoteStringLiteral";
+ EndOfLineState[EndOfLineState["InTemplateHeadOrNoSubstitutionTemplate"] = 4] = "InTemplateHeadOrNoSubstitutionTemplate";
+ EndOfLineState[EndOfLineState["InTemplateMiddleOrTail"] = 5] = "InTemplateMiddleOrTail";
+ EndOfLineState[EndOfLineState["InTemplateSubstitutionPosition"] = 6] = "InTemplateSubstitutionPosition";
+ })(ts.EndOfLineState || (ts.EndOfLineState = {}));
+ var EndOfLineState = ts.EndOfLineState;
+ (function (TokenClass) {
+ TokenClass[TokenClass["Punctuation"] = 0] = "Punctuation";
+ TokenClass[TokenClass["Keyword"] = 1] = "Keyword";
+ TokenClass[TokenClass["Operator"] = 2] = "Operator";
+ TokenClass[TokenClass["Comment"] = 3] = "Comment";
+ TokenClass[TokenClass["Whitespace"] = 4] = "Whitespace";
+ TokenClass[TokenClass["Identifier"] = 5] = "Identifier";
+ TokenClass[TokenClass["NumberLiteral"] = 6] = "NumberLiteral";
+ TokenClass[TokenClass["StringLiteral"] = 7] = "StringLiteral";
+ TokenClass[TokenClass["RegExpLiteral"] = 8] = "RegExpLiteral";
+ })(ts.TokenClass || (ts.TokenClass = {}));
+ var TokenClass = ts.TokenClass;
+ // TODO: move these to enums
+ var ScriptElementKind;
+ (function (ScriptElementKind) {
+ ScriptElementKind.unknown = "";
+ ScriptElementKind.warning = "warning";
+ // predefined type (void) or keyword (class)
+ ScriptElementKind.keyword = "keyword";
+ // top level script node
+ ScriptElementKind.scriptElement = "script";
+ // module foo {}
+ ScriptElementKind.moduleElement = "module";
+ // class X {}
+ ScriptElementKind.classElement = "class";
+ // var x = class X {}
+ ScriptElementKind.localClassElement = "local class";
+ // interface Y {}
+ ScriptElementKind.interfaceElement = "interface";
+ // type T = ...
+ ScriptElementKind.typeElement = "type";
+ // enum E
+ ScriptElementKind.enumElement = "enum";
+ // Inside module and script only
+ // let v = ..
+ ScriptElementKind.variableElement = "var";
+ // Inside function
+ ScriptElementKind.localVariableElement = "local var";
+ // Inside module and script only
+ // function f() { }
+ ScriptElementKind.functionElement = "function";
+ // Inside function
+ ScriptElementKind.localFunctionElement = "local function";
+ // class X { [public|private]* foo() {} }
+ ScriptElementKind.memberFunctionElement = "method";
+ // class X { [public|private]* [get|set] foo:number; }
+ ScriptElementKind.memberGetAccessorElement = "getter";
+ ScriptElementKind.memberSetAccessorElement = "setter";
+ // class X { [public|private]* foo:number; }
+ // interface Y { foo:number; }
+ ScriptElementKind.memberVariableElement = "property";
+ // class X { constructor() { } }
+ ScriptElementKind.constructorImplementationElement = "constructor";
+ // interface Y { ():number; }
+ ScriptElementKind.callSignatureElement = "call";
+ // interface Y { []:number; }
+ ScriptElementKind.indexSignatureElement = "index";
+ // interface Y { new():Y; }
+ ScriptElementKind.constructSignatureElement = "construct";
+ // function foo(*Y*: string)
+ ScriptElementKind.parameterElement = "parameter";
+ ScriptElementKind.typeParameterElement = "type parameter";
+ ScriptElementKind.primitiveType = "primitive type";
+ ScriptElementKind.label = "label";
+ ScriptElementKind.alias = "alias";
+ ScriptElementKind.constElement = "const";
+ ScriptElementKind.letElement = "let";
+ })(ScriptElementKind = ts.ScriptElementKind || (ts.ScriptElementKind = {}));
+ var ScriptElementKindModifier;
+ (function (ScriptElementKindModifier) {
+ ScriptElementKindModifier.none = "";
+ ScriptElementKindModifier.publicMemberModifier = "public";
+ ScriptElementKindModifier.privateMemberModifier = "private";
+ ScriptElementKindModifier.protectedMemberModifier = "protected";
+ ScriptElementKindModifier.exportedModifier = "export";
+ ScriptElementKindModifier.ambientModifier = "declare";
+ ScriptElementKindModifier.staticModifier = "static";
+ ScriptElementKindModifier.abstractModifier = "abstract";
+ })(ScriptElementKindModifier = ts.ScriptElementKindModifier || (ts.ScriptElementKindModifier = {}));
+ var ClassificationTypeNames = (function () {
+ function ClassificationTypeNames() {
+ }
+ ClassificationTypeNames.comment = "comment";
+ ClassificationTypeNames.identifier = "identifier";
+ ClassificationTypeNames.keyword = "keyword";
+ ClassificationTypeNames.numericLiteral = "number";
+ ClassificationTypeNames.operator = "operator";
+ ClassificationTypeNames.stringLiteral = "string";
+ ClassificationTypeNames.whiteSpace = "whitespace";
+ ClassificationTypeNames.text = "text";
+ ClassificationTypeNames.punctuation = "punctuation";
+ ClassificationTypeNames.className = "class name";
+ ClassificationTypeNames.enumName = "enum name";
+ ClassificationTypeNames.interfaceName = "interface name";
+ ClassificationTypeNames.moduleName = "module name";
+ ClassificationTypeNames.typeParameterName = "type parameter name";
+ ClassificationTypeNames.typeAliasName = "type alias name";
+ ClassificationTypeNames.parameterName = "parameter name";
+ ClassificationTypeNames.docCommentTagName = "doc comment tag name";
+ return ClassificationTypeNames;
+ })();
+ ts.ClassificationTypeNames = ClassificationTypeNames;
+ (function (ClassificationType) {
+ ClassificationType[ClassificationType["comment"] = 1] = "comment";
+ ClassificationType[ClassificationType["identifier"] = 2] = "identifier";
+ ClassificationType[ClassificationType["keyword"] = 3] = "keyword";
+ ClassificationType[ClassificationType["numericLiteral"] = 4] = "numericLiteral";
+ ClassificationType[ClassificationType["operator"] = 5] = "operator";
+ ClassificationType[ClassificationType["stringLiteral"] = 6] = "stringLiteral";
+ ClassificationType[ClassificationType["regularExpressionLiteral"] = 7] = "regularExpressionLiteral";
+ ClassificationType[ClassificationType["whiteSpace"] = 8] = "whiteSpace";
+ ClassificationType[ClassificationType["text"] = 9] = "text";
+ ClassificationType[ClassificationType["punctuation"] = 10] = "punctuation";
+ ClassificationType[ClassificationType["className"] = 11] = "className";
+ ClassificationType[ClassificationType["enumName"] = 12] = "enumName";
+ ClassificationType[ClassificationType["interfaceName"] = 13] = "interfaceName";
+ ClassificationType[ClassificationType["moduleName"] = 14] = "moduleName";
+ ClassificationType[ClassificationType["typeParameterName"] = 15] = "typeParameterName";
+ ClassificationType[ClassificationType["typeAliasName"] = 16] = "typeAliasName";
+ ClassificationType[ClassificationType["parameterName"] = 17] = "parameterName";
+ ClassificationType[ClassificationType["docCommentTagName"] = 18] = "docCommentTagName";
+ })(ts.ClassificationType || (ts.ClassificationType = {}));
+ var ClassificationType = ts.ClassificationType;
+ function displayPartsToString(displayParts) {
+ if (displayParts) {
+ return ts.map(displayParts, function (displayPart) { return displayPart.text; }).join("");
+ }
+ return "";
+ }
+ ts.displayPartsToString = displayPartsToString;
+ function isLocalVariableOrFunction(symbol) {
+ if (symbol.parent) {
+ return false; // This is exported symbol
+ }
+ return ts.forEach(symbol.declarations, function (declaration) {
+ // Function expressions are local
+ if (declaration.kind === 173 /* FunctionExpression */) {
+ return true;
+ }
+ if (declaration.kind !== 211 /* VariableDeclaration */ && declaration.kind !== 213 /* FunctionDeclaration */) {
+ return false;
+ }
+ // If the parent is not sourceFile or module block it is local variable
+ for (var parent_8 = declaration.parent; !ts.isFunctionBlock(parent_8); parent_8 = parent_8.parent) {
+ // Reached source file or module block
+ if (parent_8.kind === 248 /* SourceFile */ || parent_8.kind === 219 /* ModuleBlock */) {
+ return false;
+ }
+ }
+ // parent is in function block
+ return true;
+ });
+ }
+ function getDefaultCompilerOptions() {
+ // Always default to "ScriptTarget.ES5" for the language service
+ return {
+ target: 1 /* ES5 */,
+ module: 0 /* None */,
+ jsx: 1 /* Preserve */
+ };
+ }
+ ts.getDefaultCompilerOptions = getDefaultCompilerOptions;
+ // Cache host information about scrip Should be refreshed
+ // at each language service public entry point, since we don't know when
+ // set of scripts handled by the host changes.
+ var HostCache = (function () {
+ function HostCache(host, getCanonicalFileName) {
+ this.host = host;
+ // script id => script index
+ this.fileNameToEntry = ts.createFileMap(getCanonicalFileName);
+ // Initialize the list with the root file names
+ var rootFileNames = host.getScriptFileNames();
+ for (var _i = 0; _i < rootFileNames.length; _i++) {
+ var fileName = rootFileNames[_i];
+ this.createEntry(fileName);
+ }
+ // store the compilation settings
+ this._compilationSettings = host.getCompilationSettings() || getDefaultCompilerOptions();
+ }
+ HostCache.prototype.compilationSettings = function () {
+ return this._compilationSettings;
+ };
+ HostCache.prototype.createEntry = function (fileName) {
+ var entry;
+ var scriptSnapshot = this.host.getScriptSnapshot(fileName);
+ if (scriptSnapshot) {
+ entry = {
+ hostFileName: fileName,
+ version: this.host.getScriptVersion(fileName),
+ scriptSnapshot: scriptSnapshot
+ };
+ }
+ this.fileNameToEntry.set(fileName, entry);
+ return entry;
+ };
+ HostCache.prototype.getEntry = function (fileName) {
+ return this.fileNameToEntry.get(fileName);
+ };
+ HostCache.prototype.contains = function (fileName) {
+ return this.fileNameToEntry.contains(fileName);
+ };
+ HostCache.prototype.getOrCreateEntry = function (fileName) {
+ if (this.contains(fileName)) {
+ return this.getEntry(fileName);
+ }
+ return this.createEntry(fileName);
+ };
+ HostCache.prototype.getRootFileNames = function () {
+ var fileNames = [];
+ this.fileNameToEntry.forEachValue(function (value) {
+ if (value) {
+ fileNames.push(value.hostFileName);
+ }
+ });
+ return fileNames;
+ };
+ HostCache.prototype.getVersion = function (fileName) {
+ var file = this.getEntry(fileName);
+ return file && file.version;
+ };
+ HostCache.prototype.getScriptSnapshot = function (fileName) {
+ var file = this.getEntry(fileName);
+ return file && file.scriptSnapshot;
+ };
+ return HostCache;
+ })();
+ var SyntaxTreeCache = (function () {
+ function SyntaxTreeCache(host) {
+ this.host = host;
+ }
+ SyntaxTreeCache.prototype.getCurrentSourceFile = function (fileName) {
+ var scriptSnapshot = this.host.getScriptSnapshot(fileName);
+ if (!scriptSnapshot) {
+ // The host does not know about this file.
+ throw new Error("Could not find file: '" + fileName + "'.");
+ }
+ var version = this.host.getScriptVersion(fileName);
+ var sourceFile;
+ if (this.currentFileName !== fileName) {
+ // This is a new file, just parse it
+ sourceFile = createLanguageServiceSourceFile(fileName, scriptSnapshot, 2 /* Latest */, version, /*setNodeParents:*/ true);
+ }
+ else if (this.currentFileVersion !== version) {
+ // This is the same file, just a newer version. Incrementally parse the file.
+ var editRange = scriptSnapshot.getChangeRange(this.currentFileScriptSnapshot);
+ sourceFile = updateLanguageServiceSourceFile(this.currentSourceFile, scriptSnapshot, version, editRange);
+ }
+ if (sourceFile) {
+ // All done, ensure state is up to date
+ this.currentFileVersion = version;
+ this.currentFileName = fileName;
+ this.currentFileScriptSnapshot = scriptSnapshot;
+ this.currentSourceFile = sourceFile;
+ }
+ return this.currentSourceFile;
+ };
+ return SyntaxTreeCache;
+ })();
+ function setSourceFileFields(sourceFile, scriptSnapshot, version) {
+ sourceFile.version = version;
+ sourceFile.scriptSnapshot = scriptSnapshot;
+ }
+ /*
+ * This function will compile source text from 'input' argument using specified compiler options.
+ * If not options are provided - it will use a set of default compiler options.
+ * Extra compiler options that will unconditionally be used by this function are:
+ * - isolatedModules = true
+ * - allowNonTsExtensions = true
+ * - noLib = true
+ * - noResolve = true
+ */
+ function transpileModule(input, transpileOptions) {
+ var options = transpileOptions.compilerOptions ? ts.clone(transpileOptions.compilerOptions) : getDefaultCompilerOptions();
+ options.isolatedModules = true;
+ // Filename can be non-ts file.
+ options.allowNonTsExtensions = true;
+ // We are not returning a sourceFile for lib file when asked by the program,
+ // so pass --noLib to avoid reporting a file not found error.
+ options.noLib = true;
+ // We are not doing a full typecheck, we are not resolving the whole context,
+ // so pass --noResolve to avoid reporting missing file errors.
+ options.noResolve = true;
+ // if jsx is specified then treat file as .tsx
+ var inputFileName = transpileOptions.fileName || (options.jsx ? "module.tsx" : "module.ts");
+ var sourceFile = ts.createSourceFile(inputFileName, input, options.target);
+ if (transpileOptions.moduleName) {
+ sourceFile.moduleName = transpileOptions.moduleName;
+ }
+ sourceFile.renamedDependencies = transpileOptions.renamedDependencies;
+ var newLine = ts.getNewLineCharacter(options);
+ // Output
+ var outputText;
+ var sourceMapText;
+ // Create a compilerHost object to allow the compiler to read and write files
+ var compilerHost = {
+ getSourceFile: function (fileName, target) { return fileName === ts.normalizeSlashes(inputFileName) ? sourceFile : undefined; },
+ writeFile: function (name, text, writeByteOrderMark) {
+ if (ts.fileExtensionIs(name, ".map")) {
+ ts.Debug.assert(sourceMapText === undefined, "Unexpected multiple source map outputs for the file '" + name + "'");
+ sourceMapText = text;
+ }
+ else {
+ ts.Debug.assert(outputText === undefined, "Unexpected multiple outputs for the file: " + name);
+ outputText = text;
+ }
+ },
+ getDefaultLibFileName: function () { return "lib.d.ts"; },
+ useCaseSensitiveFileNames: function () { return false; },
+ getCanonicalFileName: function (fileName) { return fileName; },
+ getCurrentDirectory: function () { return ""; },
+ getNewLine: function () { return newLine; },
+ fileExists: function (fileName) { return fileName === inputFileName; },
+ readFile: function (fileName) { return ""; }
+ };
+ var program = ts.createProgram([inputFileName], options, compilerHost);
+ var diagnostics;
+ if (transpileOptions.reportDiagnostics) {
+ diagnostics = [];
+ ts.addRange(/*to*/ diagnostics, /*from*/ program.getSyntacticDiagnostics(sourceFile));
+ ts.addRange(/*to*/ diagnostics, /*from*/ program.getOptionsDiagnostics());
+ }
+ // Emit
+ program.emit();
+ ts.Debug.assert(outputText !== undefined, "Output generation failed");
+ return { outputText: outputText, diagnostics: diagnostics, sourceMapText: sourceMapText };
+ }
+ ts.transpileModule = transpileModule;
+ /*
+ * This is a shortcut function for transpileModule - it accepts transpileOptions as parameters and returns only outputText part of the result.
+ */
+ function transpile(input, compilerOptions, fileName, diagnostics, moduleName) {
+ var output = transpileModule(input, { compilerOptions: compilerOptions, fileName: fileName, reportDiagnostics: !!diagnostics, moduleName: moduleName });
+ // addRange correctly handles cases when wither 'from' or 'to' argument is missing
+ ts.addRange(diagnostics, output.diagnostics);
+ return output.outputText;
+ }
+ ts.transpile = transpile;
+ function createLanguageServiceSourceFile(fileName, scriptSnapshot, scriptTarget, version, setNodeParents) {
+ var text = scriptSnapshot.getText(0, scriptSnapshot.getLength());
+ var sourceFile = ts.createSourceFile(fileName, text, scriptTarget, setNodeParents);
+ setSourceFileFields(sourceFile, scriptSnapshot, version);
+ // after full parsing we can use table with interned strings as name table
+ sourceFile.nameTable = sourceFile.identifiers;
+ return sourceFile;
+ }
+ ts.createLanguageServiceSourceFile = createLanguageServiceSourceFile;
+ ts.disableIncrementalParsing = false;
+ function updateLanguageServiceSourceFile(sourceFile, scriptSnapshot, version, textChangeRange, aggressiveChecks) {
+ // If we were given a text change range, and our version or open-ness changed, then
+ // incrementally parse this file.
+ if (textChangeRange) {
+ if (version !== sourceFile.version) {
+ // Once incremental parsing is ready, then just call into this function.
+ if (!ts.disableIncrementalParsing) {
+ var newText;
+ // grab the fragment from the beginning of the original text to the beginning of the span
+ var prefix = textChangeRange.span.start !== 0
+ ? sourceFile.text.substr(0, textChangeRange.span.start)
+ : "";
+ // grab the fragment from the end of the span till the end of the original text
+ var suffix = ts.textSpanEnd(textChangeRange.span) !== sourceFile.text.length
+ ? sourceFile.text.substr(ts.textSpanEnd(textChangeRange.span))
+ : "";
+ if (textChangeRange.newLength === 0) {
+ // edit was a deletion - just combine prefix and suffix
+ newText = prefix && suffix ? prefix + suffix : prefix || suffix;
+ }
+ else {
+ // it was actual edit, fetch the fragment of new text that correspond to new span
+ var changedText = scriptSnapshot.getText(textChangeRange.span.start, textChangeRange.span.start + textChangeRange.newLength);
+ // combine prefix, changed text and suffix
+ newText = prefix && suffix
+ ? prefix + changedText + suffix
+ : prefix
+ ? (prefix + changedText)
+ : (changedText + suffix);
+ }
+ var newSourceFile = ts.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
+ setSourceFileFields(newSourceFile, scriptSnapshot, version);
+ // after incremental parsing nameTable might not be up-to-date
+ // drop it so it can be lazily recreated later
+ newSourceFile.nameTable = undefined;
+ // dispose all resources held by old script snapshot
+ if (sourceFile !== newSourceFile && sourceFile.scriptSnapshot) {
+ if (sourceFile.scriptSnapshot.dispose) {
+ sourceFile.scriptSnapshot.dispose();
+ }
+ sourceFile.scriptSnapshot = undefined;
+ }
+ return newSourceFile;
+ }
+ }
+ }
+ // Otherwise, just create a new source file.
+ return createLanguageServiceSourceFile(sourceFile.fileName, scriptSnapshot, sourceFile.languageVersion, version, /*setNodeParents:*/ true);
+ }
+ ts.updateLanguageServiceSourceFile = updateLanguageServiceSourceFile;
+ function createGetCanonicalFileName(useCaseSensitivefileNames) {
+ return useCaseSensitivefileNames
+ ? (function (fileName) { return fileName; })
+ : (function (fileName) { return fileName.toLowerCase(); });
+ }
+ ts.createGetCanonicalFileName = createGetCanonicalFileName;
+ function createDocumentRegistry(useCaseSensitiveFileNames) {
+ // Maps from compiler setting target (ES3, ES5, etc.) to all the cached documents we have
+ // for those settings.
+ var buckets = {};
+ var getCanonicalFileName = createGetCanonicalFileName(!!useCaseSensitiveFileNames);
+ function getKeyFromCompilationSettings(settings) {
+ return "_" + settings.target + "|" + settings.module + "|" + settings.noResolve + "|" + settings.jsx;
+ }
+ function getBucketForCompilationSettings(settings, createIfMissing) {
+ var key = getKeyFromCompilationSettings(settings);
+ var bucket = ts.lookUp(buckets, key);
+ if (!bucket && createIfMissing) {
+ buckets[key] = bucket = ts.createFileMap(getCanonicalFileName);
+ }
+ return bucket;
+ }
+ function reportStats() {
+ var bucketInfoArray = Object.keys(buckets).filter(function (name) { return name && name.charAt(0) === '_'; }).map(function (name) {
+ var entries = ts.lookUp(buckets, name);
+ var sourceFiles = [];
+ for (var i in entries) {
+ var entry = entries.get(i);
+ sourceFiles.push({
+ name: i,
+ refCount: entry.languageServiceRefCount,
+ references: entry.owners.slice(0)
+ });
+ }
+ sourceFiles.sort(function (x, y) { return y.refCount - x.refCount; });
+ return {
+ bucket: name,
+ sourceFiles: sourceFiles
+ };
+ });
+ return JSON.stringify(bucketInfoArray, null, 2);
+ }
+ function acquireDocument(fileName, compilationSettings, scriptSnapshot, version) {
+ return acquireOrUpdateDocument(fileName, compilationSettings, scriptSnapshot, version, /*acquiring:*/ true);
+ }
+ function updateDocument(fileName, compilationSettings, scriptSnapshot, version) {
+ return acquireOrUpdateDocument(fileName, compilationSettings, scriptSnapshot, version, /*acquiring:*/ false);
+ }
+ function acquireOrUpdateDocument(fileName, compilationSettings, scriptSnapshot, version, acquiring) {
+ var bucket = getBucketForCompilationSettings(compilationSettings, /*createIfMissing*/ true);
+ var entry = bucket.get(fileName);
+ if (!entry) {
+ ts.Debug.assert(acquiring, "How could we be trying to update a document that the registry doesn't have?");
+ // Have never seen this file with these settings. Create a new source file for it.
+ var sourceFile = createLanguageServiceSourceFile(fileName, scriptSnapshot, compilationSettings.target, version, /*setNodeParents:*/ false);
+ entry = {
+ sourceFile: sourceFile,
+ languageServiceRefCount: 0,
+ owners: []
+ };
+ bucket.set(fileName, entry);
+ }
+ else {
+ // We have an entry for this file. However, it may be for a different version of
+ // the script snapshot. If so, update it appropriately. Otherwise, we can just
+ // return it as is.
+ if (entry.sourceFile.version !== version) {
+ entry.sourceFile = updateLanguageServiceSourceFile(entry.sourceFile, scriptSnapshot, version, scriptSnapshot.getChangeRange(entry.sourceFile.scriptSnapshot));
+ }
+ }
+ // If we're acquiring, then this is the first time this LS is asking for this document.
+ // Increase our ref count so we know there's another LS using the document. If we're
+ // not acquiring, then that means the LS is 'updating' the file instead, and that means
+ // it has already acquired the document previously. As such, we do not need to increase
+ // the ref count.
+ if (acquiring) {
+ entry.languageServiceRefCount++;
+ }
+ return entry.sourceFile;
+ }
+ function releaseDocument(fileName, compilationSettings) {
+ var bucket = getBucketForCompilationSettings(compilationSettings, false);
+ ts.Debug.assert(bucket !== undefined);
+ var entry = bucket.get(fileName);
+ entry.languageServiceRefCount--;
+ ts.Debug.assert(entry.languageServiceRefCount >= 0);
+ if (entry.languageServiceRefCount === 0) {
+ bucket.remove(fileName);
+ }
+ }
+ return {
+ acquireDocument: acquireDocument,
+ updateDocument: updateDocument,
+ releaseDocument: releaseDocument,
+ reportStats: reportStats
+ };
+ }
+ ts.createDocumentRegistry = createDocumentRegistry;
+ function preProcessFile(sourceText, readImportFiles) {
+ if (readImportFiles === void 0) { readImportFiles = true; }
+ var referencedFiles = [];
+ var importedFiles = [];
+ var ambientExternalModules;
+ var isNoDefaultLib = false;
+ function processTripleSlashDirectives() {
+ var commentRanges = ts.getLeadingCommentRanges(sourceText, 0);
+ ts.forEach(commentRanges, function (commentRange) {
+ var comment = sourceText.substring(commentRange.pos, commentRange.end);
+ var referencePathMatchResult = ts.getFileReferenceFromReferencePath(comment, commentRange);
+ if (referencePathMatchResult) {
+ isNoDefaultLib = referencePathMatchResult.isNoDefaultLib;
+ var fileReference = referencePathMatchResult.fileReference;
+ if (fileReference) {
+ referencedFiles.push(fileReference);
+ }
+ }
+ });
+ }
+ function recordAmbientExternalModule() {
+ if (!ambientExternalModules) {
+ ambientExternalModules = [];
+ }
+ ambientExternalModules.push(scanner.getTokenValue());
+ }
+ function recordModuleName() {
+ var importPath = scanner.getTokenValue();
+ var pos = scanner.getTokenPos();
+ importedFiles.push({
+ fileName: importPath,
+ pos: pos,
+ end: pos + importPath.length
+ });
+ }
+ function processImport() {
+ scanner.setText(sourceText);
+ var token = scanner.scan();
+ // Look for:
+ // import "mod";
+ // import d from "mod"
+ // import {a as A } from "mod";
+ // import * as NS from "mod"
+ // import d, {a, b as B} from "mod"
+ // import i = require("mod");
+ //
+ // export * from "mod"
+ // export {a as b} from "mod"
+ // export import i = require("mod")
+ while (token !== 1 /* EndOfFileToken */) {
+ if (token === 122 /* DeclareKeyword */) {
+ // declare module "mod"
+ token = scanner.scan();
+ if (token === 125 /* ModuleKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ recordAmbientExternalModule();
+ continue;
+ }
+ }
+ }
+ else if (token === 89 /* ImportKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // import "mod";
+ recordModuleName();
+ continue;
+ }
+ else {
+ if (token === 69 /* Identifier */ || ts.isKeyword(token)) {
+ token = scanner.scan();
+ if (token === 133 /* FromKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // import d from "mod";
+ recordModuleName();
+ continue;
+ }
+ }
+ else if (token === 56 /* EqualsToken */) {
+ token = scanner.scan();
+ if (token === 127 /* RequireKeyword */) {
+ token = scanner.scan();
+ if (token === 17 /* OpenParenToken */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // import i = require("mod");
+ recordModuleName();
+ continue;
+ }
+ }
+ }
+ }
+ else if (token === 24 /* CommaToken */) {
+ // consume comma and keep going
+ token = scanner.scan();
+ }
+ else {
+ // unknown syntax
+ continue;
+ }
+ }
+ if (token === 15 /* OpenBraceToken */) {
+ token = scanner.scan();
+ // consume "{ a as B, c, d as D}" clauses
+ while (token !== 16 /* CloseBraceToken */) {
+ token = scanner.scan();
+ }
+ if (token === 16 /* CloseBraceToken */) {
+ token = scanner.scan();
+ if (token === 133 /* FromKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // import {a as A} from "mod";
+ // import d, {a, b as B} from "mod"
+ recordModuleName();
+ }
+ }
+ }
+ }
+ else if (token === 37 /* AsteriskToken */) {
+ token = scanner.scan();
+ if (token === 116 /* AsKeyword */) {
+ token = scanner.scan();
+ if (token === 69 /* Identifier */ || ts.isKeyword(token)) {
+ token = scanner.scan();
+ if (token === 133 /* FromKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // import * as NS from "mod"
+ // import d, * as NS from "mod"
+ recordModuleName();
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ else if (token === 82 /* ExportKeyword */) {
+ token = scanner.scan();
+ if (token === 15 /* OpenBraceToken */) {
+ token = scanner.scan();
+ // consume "{ a as B, c, d as D}" clauses
+ while (token !== 16 /* CloseBraceToken */) {
+ token = scanner.scan();
+ }
+ if (token === 16 /* CloseBraceToken */) {
+ token = scanner.scan();
+ if (token === 133 /* FromKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // export {a as A} from "mod";
+ // export {a, b as B} from "mod"
+ recordModuleName();
+ }
+ }
+ }
+ }
+ else if (token === 37 /* AsteriskToken */) {
+ token = scanner.scan();
+ if (token === 133 /* FromKeyword */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // export * from "mod"
+ recordModuleName();
+ }
+ }
+ }
+ else if (token === 89 /* ImportKeyword */) {
+ token = scanner.scan();
+ if (token === 69 /* Identifier */ || ts.isKeyword(token)) {
+ token = scanner.scan();
+ if (token === 56 /* EqualsToken */) {
+ token = scanner.scan();
+ if (token === 127 /* RequireKeyword */) {
+ token = scanner.scan();
+ if (token === 17 /* OpenParenToken */) {
+ token = scanner.scan();
+ if (token === 9 /* StringLiteral */) {
+ // export import i = require("mod");
+ recordModuleName();
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ token = scanner.scan();
+ }
+ scanner.setText(undefined);
+ }
+ if (readImportFiles) {
+ processImport();
+ }
+ processTripleSlashDirectives();
+ return { referencedFiles: referencedFiles, importedFiles: importedFiles, isLibFile: isNoDefaultLib, ambientExternalModules: ambientExternalModules };
+ }
+ ts.preProcessFile = preProcessFile;
+ /// Helpers
+ function getTargetLabel(referenceNode, labelName) {
+ while (referenceNode) {
+ if (referenceNode.kind === 207 /* LabeledStatement */ && referenceNode.label.text === labelName) {
+ return referenceNode.label;
+ }
+ referenceNode = referenceNode.parent;
+ }
+ return undefined;
+ }
+ function isJumpStatementTarget(node) {
+ return node.kind === 69 /* Identifier */ &&
+ (node.parent.kind === 203 /* BreakStatement */ || node.parent.kind === 202 /* ContinueStatement */) &&
+ node.parent.label === node;
+ }
+ function isLabelOfLabeledStatement(node) {
+ return node.kind === 69 /* Identifier */ &&
+ node.parent.kind === 207 /* LabeledStatement */ &&
+ node.parent.label === node;
+ }
+ /**
+ * Whether or not a 'node' is preceded by a label of the given string.
+ * Note: 'node' cannot be a SourceFile.
+ */
+ function isLabeledBy(node, labelName) {
+ for (var owner = node.parent; owner.kind === 207 /* LabeledStatement */; owner = owner.parent) {
+ if (owner.label.text === labelName) {
+ return true;
+ }
+ }
+ return false;
+ }
+ function isLabelName(node) {
+ return isLabelOfLabeledStatement(node) || isJumpStatementTarget(node);
+ }
+ function isRightSideOfQualifiedName(node) {
+ return node.parent.kind === 135 /* QualifiedName */ && node.parent.right === node;
+ }
+ function isRightSideOfPropertyAccess(node) {
+ return node && node.parent && node.parent.kind === 166 /* PropertyAccessExpression */ && node.parent.name === node;
+ }
+ function isCallExpressionTarget(node) {
+ if (isRightSideOfPropertyAccess(node)) {
+ node = node.parent;
+ }
+ return node && node.parent && node.parent.kind === 168 /* CallExpression */ && node.parent.expression === node;
+ }
+ function isNewExpressionTarget(node) {
+ if (isRightSideOfPropertyAccess(node)) {
+ node = node.parent;
+ }
+ return node && node.parent && node.parent.kind === 169 /* NewExpression */ && node.parent.expression === node;
+ }
+ function isNameOfModuleDeclaration(node) {
+ return node.parent.kind === 218 /* ModuleDeclaration */ && node.parent.name === node;
+ }
+ function isNameOfFunctionDeclaration(node) {
+ return node.kind === 69 /* Identifier */ &&
+ ts.isFunctionLike(node.parent) && node.parent.name === node;
+ }
+ /** Returns true if node is a name of an object literal property, e.g. "a" in x = { "a": 1 } */
+ function isNameOfPropertyAssignment(node) {
+ return (node.kind === 69 /* Identifier */ || node.kind === 9 /* StringLiteral */ || node.kind === 8 /* NumericLiteral */) &&
+ (node.parent.kind === 245 /* PropertyAssignment */ || node.parent.kind === 246 /* ShorthandPropertyAssignment */) && node.parent.name === node;
+ }
+ function isLiteralNameOfPropertyDeclarationOrIndexAccess(node) {
+ if (node.kind === 9 /* StringLiteral */ || node.kind === 8 /* NumericLiteral */) {
+ switch (node.parent.kind) {
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 245 /* PropertyAssignment */:
+ case 247 /* EnumMember */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 218 /* ModuleDeclaration */:
+ return node.parent.name === node;
+ case 167 /* ElementAccessExpression */:
+ return node.parent.argumentExpression === node;
+ }
+ }
+ return false;
+ }
+ function isNameOfExternalModuleImportOrDeclaration(node) {
+ if (node.kind === 9 /* StringLiteral */) {
+ return isNameOfModuleDeclaration(node) ||
+ (ts.isExternalModuleImportEqualsDeclaration(node.parent.parent) && ts.getExternalModuleImportEqualsDeclarationExpression(node.parent.parent) === node);
+ }
+ return false;
+ }
+ /** Returns true if the position is within a comment */
+ function isInsideComment(sourceFile, token, position) {
+ // The position has to be: 1. in the leading trivia (before token.getStart()), and 2. within a comment
+ return position <= token.getStart(sourceFile) &&
+ (isInsideCommentRange(ts.getTrailingCommentRanges(sourceFile.text, token.getFullStart())) ||
+ isInsideCommentRange(ts.getLeadingCommentRanges(sourceFile.text, token.getFullStart())));
+ function isInsideCommentRange(comments) {
+ return ts.forEach(comments, function (comment) {
+ // either we are 1. completely inside the comment, or 2. at the end of the comment
+ if (comment.pos < position && position < comment.end) {
+ return true;
+ }
+ else if (position === comment.end) {
+ var text = sourceFile.text;
+ var width = comment.end - comment.pos;
+ // is single line comment or just /*
+ if (width <= 2 || text.charCodeAt(comment.pos + 1) === 47 /* slash */) {
+ return true;
+ }
+ else {
+ // is unterminated multi-line comment
+ return !(text.charCodeAt(comment.end - 1) === 47 /* slash */ &&
+ text.charCodeAt(comment.end - 2) === 42 /* asterisk */);
+ }
+ }
+ return false;
+ });
+ }
+ }
+ var SemanticMeaning;
+ (function (SemanticMeaning) {
+ SemanticMeaning[SemanticMeaning["None"] = 0] = "None";
+ SemanticMeaning[SemanticMeaning["Value"] = 1] = "Value";
+ SemanticMeaning[SemanticMeaning["Type"] = 2] = "Type";
+ SemanticMeaning[SemanticMeaning["Namespace"] = 4] = "Namespace";
+ SemanticMeaning[SemanticMeaning["All"] = 7] = "All";
+ })(SemanticMeaning || (SemanticMeaning = {}));
+ var BreakContinueSearchType;
+ (function (BreakContinueSearchType) {
+ BreakContinueSearchType[BreakContinueSearchType["None"] = 0] = "None";
+ BreakContinueSearchType[BreakContinueSearchType["Unlabeled"] = 1] = "Unlabeled";
+ BreakContinueSearchType[BreakContinueSearchType["Labeled"] = 2] = "Labeled";
+ BreakContinueSearchType[BreakContinueSearchType["All"] = 3] = "All";
+ })(BreakContinueSearchType || (BreakContinueSearchType = {}));
+ // A cache of completion entries for keywords, these do not change between sessions
+ var keywordCompletions = [];
+ for (var i = 70 /* FirstKeyword */; i <= 134 /* LastKeyword */; i++) {
+ keywordCompletions.push({
+ name: ts.tokenToString(i),
+ kind: ScriptElementKind.keyword,
+ kindModifiers: ScriptElementKindModifier.none,
+ sortText: "0"
+ });
+ }
+ /* @internal */ function getContainerNode(node) {
+ while (true) {
+ node = node.parent;
+ if (!node) {
+ return undefined;
+ }
+ switch (node.kind) {
+ case 248 /* SourceFile */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 218 /* ModuleDeclaration */:
+ return node;
+ }
+ }
+ }
+ ts.getContainerNode = getContainerNode;
+ /* @internal */ function getNodeKind(node) {
+ switch (node.kind) {
+ case 218 /* ModuleDeclaration */: return ScriptElementKind.moduleElement;
+ case 214 /* ClassDeclaration */: return ScriptElementKind.classElement;
+ case 215 /* InterfaceDeclaration */: return ScriptElementKind.interfaceElement;
+ case 216 /* TypeAliasDeclaration */: return ScriptElementKind.typeElement;
+ case 217 /* EnumDeclaration */: return ScriptElementKind.enumElement;
+ case 211 /* VariableDeclaration */:
+ return ts.isConst(node)
+ ? ScriptElementKind.constElement
+ : ts.isLet(node)
+ ? ScriptElementKind.letElement
+ : ScriptElementKind.variableElement;
+ case 213 /* FunctionDeclaration */: return ScriptElementKind.functionElement;
+ case 145 /* GetAccessor */: return ScriptElementKind.memberGetAccessorElement;
+ case 146 /* SetAccessor */: return ScriptElementKind.memberSetAccessorElement;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ return ScriptElementKind.memberFunctionElement;
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return ScriptElementKind.memberVariableElement;
+ case 149 /* IndexSignature */: return ScriptElementKind.indexSignatureElement;
+ case 148 /* ConstructSignature */: return ScriptElementKind.constructSignatureElement;
+ case 147 /* CallSignature */: return ScriptElementKind.callSignatureElement;
+ case 144 /* Constructor */: return ScriptElementKind.constructorImplementationElement;
+ case 137 /* TypeParameter */: return ScriptElementKind.typeParameterElement;
+ case 247 /* EnumMember */: return ScriptElementKind.variableElement;
+ case 138 /* Parameter */: return (node.flags & 112 /* AccessibilityModifier */) ? ScriptElementKind.memberVariableElement : ScriptElementKind.parameterElement;
+ case 221 /* ImportEqualsDeclaration */:
+ case 226 /* ImportSpecifier */:
+ case 223 /* ImportClause */:
+ case 230 /* ExportSpecifier */:
+ case 224 /* NamespaceImport */:
+ return ScriptElementKind.alias;
+ }
+ return ScriptElementKind.unknown;
+ }
+ ts.getNodeKind = getNodeKind;
+ var CancellationTokenObject = (function () {
+ function CancellationTokenObject(cancellationToken) {
+ this.cancellationToken = cancellationToken;
+ }
+ CancellationTokenObject.prototype.isCancellationRequested = function () {
+ return this.cancellationToken && this.cancellationToken.isCancellationRequested();
+ };
+ CancellationTokenObject.prototype.throwIfCancellationRequested = function () {
+ if (this.isCancellationRequested()) {
+ throw new ts.OperationCanceledException();
+ }
+ };
+ return CancellationTokenObject;
+ })();
+ function createLanguageService(host, documentRegistry) {
+ if (documentRegistry === void 0) { documentRegistry = createDocumentRegistry(); }
+ var syntaxTreeCache = new SyntaxTreeCache(host);
+ var ruleProvider;
+ var program;
+ var lastProjectVersion;
+ var useCaseSensitivefileNames = false;
+ var cancellationToken = new CancellationTokenObject(host.getCancellationToken && host.getCancellationToken());
+ // Check if the localized messages json is set, otherwise query the host for it
+ if (!ts.localizedDiagnosticMessages && host.getLocalizedDiagnosticMessages) {
+ ts.localizedDiagnosticMessages = host.getLocalizedDiagnosticMessages();
+ }
+ function log(message) {
+ if (host.log) {
+ host.log(message);
+ }
+ }
+ var getCanonicalFileName = createGetCanonicalFileName(useCaseSensitivefileNames);
+ function getValidSourceFile(fileName) {
+ fileName = ts.normalizeSlashes(fileName);
+ var sourceFile = program.getSourceFile(getCanonicalFileName(fileName));
+ if (!sourceFile) {
+ throw new Error("Could not find file: '" + fileName + "'.");
+ }
+ return sourceFile;
+ }
+ function getRuleProvider(options) {
+ // Ensure rules are initialized and up to date wrt to formatting options
+ if (!ruleProvider) {
+ ruleProvider = new ts.formatting.RulesProvider();
+ }
+ ruleProvider.ensureUpToDate(options);
+ return ruleProvider;
+ }
+ function synchronizeHostData() {
+ // perform fast check if host supports it
+ if (host.getProjectVersion) {
+ var hostProjectVersion = host.getProjectVersion();
+ if (hostProjectVersion) {
+ if (lastProjectVersion === hostProjectVersion) {
+ return;
+ }
+ lastProjectVersion = hostProjectVersion;
+ }
+ }
+ // Get a fresh cache of the host information
+ var hostCache = new HostCache(host, getCanonicalFileName);
+ // If the program is already up-to-date, we can reuse it
+ if (programUpToDate()) {
+ return;
+ }
+ // IMPORTANT - It is critical from this moment onward that we do not check
+ // cancellation tokens. We are about to mutate source files from a previous program
+ // instance. If we cancel midway through, we may end up in an inconsistent state where
+ // the program points to old source files that have been invalidated because of
+ // incremental parsing.
+ var oldSettings = program && program.getCompilerOptions();
+ var newSettings = hostCache.compilationSettings();
+ var changesInCompilationSettingsAffectSyntax = oldSettings &&
+ (oldSettings.target !== newSettings.target ||
+ oldSettings.module !== newSettings.module ||
+ oldSettings.noResolve !== newSettings.noResolve ||
+ oldSettings.jsx !== newSettings.jsx);
+ // Now create a new compiler
+ var compilerHost = {
+ getSourceFile: getOrCreateSourceFile,
+ getCancellationToken: function () { return cancellationToken; },
+ getCanonicalFileName: getCanonicalFileName,
+ useCaseSensitiveFileNames: function () { return useCaseSensitivefileNames; },
+ getNewLine: function () { return ts.getNewLineOrDefaultFromHost(host); },
+ getDefaultLibFileName: function (options) { return host.getDefaultLibFileName(options); },
+ writeFile: function (fileName, data, writeByteOrderMark) { },
+ getCurrentDirectory: function () { return host.getCurrentDirectory(); },
+ fileExists: function (fileName) {
+ // stub missing host functionality
+ ts.Debug.assert(!host.resolveModuleNames);
+ return hostCache.getOrCreateEntry(fileName) !== undefined;
+ },
+ readFile: function (fileName) {
+ // stub missing host functionality
+ var entry = hostCache.getOrCreateEntry(fileName);
+ return entry && entry.scriptSnapshot.getText(0, entry.scriptSnapshot.getLength());
+ }
+ };
+ if (host.resolveModuleNames) {
+ compilerHost.resolveModuleNames = function (moduleNames, containingFile) { return host.resolveModuleNames(moduleNames, containingFile); };
+ }
+ var newProgram = ts.createProgram(hostCache.getRootFileNames(), newSettings, compilerHost, program);
+ // Release any files we have acquired in the old program but are
+ // not part of the new program.
+ if (program) {
+ var oldSourceFiles = program.getSourceFiles();
+ for (var _i = 0; _i < oldSourceFiles.length; _i++) {
+ var oldSourceFile = oldSourceFiles[_i];
+ var fileName = oldSourceFile.fileName;
+ if (!newProgram.getSourceFile(fileName) || changesInCompilationSettingsAffectSyntax) {
+ documentRegistry.releaseDocument(fileName, oldSettings);
+ }
+ }
+ }
+ // hostCache is captured in the closure for 'getOrCreateSourceFile' but it should not be used past this point.
+ // It needs to be cleared to allow all collected snapshots to be released
+ hostCache = undefined;
+ program = newProgram;
+ // Make sure all the nodes in the program are both bound, and have their parent
+ // pointers set property.
+ program.getTypeChecker();
+ return;
+ function getOrCreateSourceFile(fileName) {
+ ts.Debug.assert(hostCache !== undefined);
+ // The program is asking for this file, check first if the host can locate it.
+ // If the host can not locate the file, then it does not exist. return undefined
+ // to the program to allow reporting of errors for missing files.
+ var hostFileInformation = hostCache.getOrCreateEntry(fileName);
+ if (!hostFileInformation) {
+ return undefined;
+ }
+ // Check if the language version has changed since we last created a program; if they are the same,
+ // it is safe to reuse the souceFiles; if not, then the shape of the AST can change, and the oldSourceFile
+ // can not be reused. we have to dump all syntax trees and create new ones.
+ if (!changesInCompilationSettingsAffectSyntax) {
+ // Check if the old program had this file already
+ var oldSourceFile = program && program.getSourceFile(fileName);
+ if (oldSourceFile) {
+ // We already had a source file for this file name. Go to the registry to
+ // ensure that we get the right up to date version of it. We need this to
+ // address the following 'race'. Specifically, say we have the following:
+ //
+ // LS1
+ // \
+ // DocumentRegistry
+ // /
+ // LS2
+ //
+ // Each LS has a reference to file 'foo.ts' at version 1. LS2 then updates
+ // it's version of 'foo.ts' to version 2. This will cause LS2 and the
+ // DocumentRegistry to have version 2 of the document. HOwever, LS1 will
+ // have version 1. And *importantly* this source file will be *corrupt*.
+ // The act of creating version 2 of the file irrevocably damages the version
+ // 1 file.
+ //
+ // So, later when we call into LS1, we need to make sure that it doesn't use
+ // it's source file any more, and instead defers to DocumentRegistry to get
+ // either version 1, version 2 (or some other version) depending on what the
+ // host says should be used.
+ return documentRegistry.updateDocument(fileName, newSettings, hostFileInformation.scriptSnapshot, hostFileInformation.version);
+ }
+ }
+ // Could not find this file in the old program, create a new SourceFile for it.
+ return documentRegistry.acquireDocument(fileName, newSettings, hostFileInformation.scriptSnapshot, hostFileInformation.version);
+ }
+ function sourceFileUpToDate(sourceFile) {
+ return sourceFile && sourceFile.version === hostCache.getVersion(sourceFile.fileName);
+ }
+ function programUpToDate() {
+ // If we haven't create a program yet, then it is not up-to-date
+ if (!program) {
+ return false;
+ }
+ // If number of files in the program do not match, it is not up-to-date
+ var rootFileNames = hostCache.getRootFileNames();
+ if (program.getSourceFiles().length !== rootFileNames.length) {
+ return false;
+ }
+ // If any file is not up-to-date, then the whole program is not up-to-date
+ for (var _i = 0; _i < rootFileNames.length; _i++) {
+ var fileName = rootFileNames[_i];
+ if (!sourceFileUpToDate(program.getSourceFile(fileName))) {
+ return false;
+ }
+ }
+ // If the compilation settings do no match, then the program is not up-to-date
+ return ts.compareDataObjects(program.getCompilerOptions(), hostCache.compilationSettings());
+ }
+ }
+ function getProgram() {
+ synchronizeHostData();
+ return program;
+ }
+ function cleanupSemanticCache() {
+ // TODO: Should we jettison the program (or it's type checker) here?
+ }
+ function dispose() {
+ if (program) {
+ ts.forEach(program.getSourceFiles(), function (f) {
+ return documentRegistry.releaseDocument(f.fileName, program.getCompilerOptions());
+ });
+ }
+ }
+ /// Diagnostics
+ function getSyntacticDiagnostics(fileName) {
+ synchronizeHostData();
+ return program.getSyntacticDiagnostics(getValidSourceFile(fileName), cancellationToken);
+ }
+ /**
+ * getSemanticDiagnostiscs return array of Diagnostics. If '-d' is not enabled, only report semantic errors
+ * If '-d' enabled, report both semantic and emitter errors
+ */
+ function getSemanticDiagnostics(fileName) {
+ synchronizeHostData();
+ var targetSourceFile = getValidSourceFile(fileName);
+ // For JavaScript files, we don't want to report the normal typescript semantic errors.
+ // Instead, we just report errors for using TypeScript-only constructs from within a
+ // JavaScript file.
+ if (ts.isJavaScript(fileName)) {
+ return getJavaScriptSemanticDiagnostics(targetSourceFile);
+ }
+ // Only perform the action per file regardless of '-out' flag as LanguageServiceHost is expected to call this function per file.
+ // Therefore only get diagnostics for given file.
+ var semanticDiagnostics = program.getSemanticDiagnostics(targetSourceFile, cancellationToken);
+ if (!program.getCompilerOptions().declaration) {
+ return semanticDiagnostics;
+ }
+ // If '-d' is enabled, check for emitter error. One example of emitter error is export class implements non-export interface
+ var declarationDiagnostics = program.getDeclarationDiagnostics(targetSourceFile, cancellationToken);
+ return ts.concatenate(semanticDiagnostics, declarationDiagnostics);
+ }
+ function getJavaScriptSemanticDiagnostics(sourceFile) {
+ var diagnostics = [];
+ walk(sourceFile);
+ return diagnostics;
+ function walk(node) {
+ if (!node) {
+ return false;
+ }
+ switch (node.kind) {
+ case 221 /* ImportEqualsDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.import_can_only_be_used_in_a_ts_file));
+ return true;
+ case 227 /* ExportAssignment */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.export_can_only_be_used_in_a_ts_file));
+ return true;
+ case 214 /* ClassDeclaration */:
+ var classDeclaration = node;
+ if (checkModifiers(classDeclaration.modifiers) ||
+ checkTypeParameters(classDeclaration.typeParameters)) {
+ return true;
+ }
+ break;
+ case 243 /* HeritageClause */:
+ var heritageClause = node;
+ if (heritageClause.token === 106 /* ImplementsKeyword */) {
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.implements_clauses_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ break;
+ case 215 /* InterfaceDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.interface_declarations_can_only_be_used_in_a_ts_file));
+ return true;
+ case 218 /* ModuleDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.module_declarations_can_only_be_used_in_a_ts_file));
+ return true;
+ case 216 /* TypeAliasDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.type_aliases_can_only_be_used_in_a_ts_file));
+ return true;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 173 /* FunctionExpression */:
+ case 213 /* FunctionDeclaration */:
+ case 174 /* ArrowFunction */:
+ case 213 /* FunctionDeclaration */:
+ var functionDeclaration = node;
+ if (checkModifiers(functionDeclaration.modifiers) ||
+ checkTypeParameters(functionDeclaration.typeParameters) ||
+ checkTypeAnnotation(functionDeclaration.type)) {
+ return true;
+ }
+ break;
+ case 193 /* VariableStatement */:
+ var variableStatement = node;
+ if (checkModifiers(variableStatement.modifiers)) {
+ return true;
+ }
+ break;
+ case 211 /* VariableDeclaration */:
+ var variableDeclaration = node;
+ if (checkTypeAnnotation(variableDeclaration.type)) {
+ return true;
+ }
+ break;
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ var expression = node;
+ if (expression.typeArguments && expression.typeArguments.length > 0) {
+ var start = expression.typeArguments.pos;
+ diagnostics.push(ts.createFileDiagnostic(sourceFile, start, expression.typeArguments.end - start, ts.Diagnostics.type_arguments_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ break;
+ case 138 /* Parameter */:
+ var parameter = node;
+ if (parameter.modifiers) {
+ var start = parameter.modifiers.pos;
+ diagnostics.push(ts.createFileDiagnostic(sourceFile, start, parameter.modifiers.end - start, ts.Diagnostics.parameter_modifiers_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ if (parameter.questionToken) {
+ diagnostics.push(ts.createDiagnosticForNode(parameter.questionToken, ts.Diagnostics._0_can_only_be_used_in_a_ts_file, '?'));
+ return true;
+ }
+ if (parameter.type) {
+ diagnostics.push(ts.createDiagnosticForNode(parameter.type, ts.Diagnostics.types_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ break;
+ case 141 /* PropertyDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.property_declarations_can_only_be_used_in_a_ts_file));
+ return true;
+ case 217 /* EnumDeclaration */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.enum_declarations_can_only_be_used_in_a_ts_file));
+ return true;
+ case 171 /* TypeAssertionExpression */:
+ var typeAssertionExpression = node;
+ diagnostics.push(ts.createDiagnosticForNode(typeAssertionExpression.type, ts.Diagnostics.type_assertion_expressions_can_only_be_used_in_a_ts_file));
+ return true;
+ case 139 /* Decorator */:
+ diagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.decorators_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ return ts.forEachChild(node, walk);
+ }
+ function checkTypeParameters(typeParameters) {
+ if (typeParameters) {
+ var start = typeParameters.pos;
+ diagnostics.push(ts.createFileDiagnostic(sourceFile, start, typeParameters.end - start, ts.Diagnostics.type_parameter_declarations_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ return false;
+ }
+ function checkTypeAnnotation(type) {
+ if (type) {
+ diagnostics.push(ts.createDiagnosticForNode(type, ts.Diagnostics.types_can_only_be_used_in_a_ts_file));
+ return true;
+ }
+ return false;
+ }
+ function checkModifiers(modifiers) {
+ if (modifiers) {
+ for (var _i = 0; _i < modifiers.length; _i++) {
+ var modifier = modifiers[_i];
+ switch (modifier.kind) {
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ case 122 /* DeclareKeyword */:
+ diagnostics.push(ts.createDiagnosticForNode(modifier, ts.Diagnostics._0_can_only_be_used_in_a_ts_file, ts.tokenToString(modifier.kind)));
+ return true;
+ // These are all legal modifiers.
+ case 113 /* StaticKeyword */:
+ case 82 /* ExportKeyword */:
+ case 74 /* ConstKeyword */:
+ case 77 /* DefaultKeyword */:
+ case 115 /* AbstractKeyword */:
+ }
+ }
+ }
+ return false;
+ }
+ }
+ function getCompilerOptionsDiagnostics() {
+ synchronizeHostData();
+ return program.getOptionsDiagnostics(cancellationToken).concat(program.getGlobalDiagnostics(cancellationToken));
+ }
+ /**
+ * Get the name to be display in completion from a given symbol.
+ *
+ * @return undefined if the name is of external module otherwise a name with striped of any quote
+ */
+ function getCompletionEntryDisplayNameForSymbol(symbol, target, performCharacterChecks, location) {
+ var displayName = ts.getDeclaredName(program.getTypeChecker(), symbol, location);
+ if (displayName) {
+ var firstCharCode = displayName.charCodeAt(0);
+ // First check of the displayName is not external module; if it is an external module, it is not valid entry
+ if ((symbol.flags & 1536 /* Namespace */) && (firstCharCode === 39 /* singleQuote */ || firstCharCode === 34 /* doubleQuote */)) {
+ // If the symbol is external module, don't show it in the completion list
+ // (i.e declare module "http" { let x; } | // <= request completion here, "http" should not be there)
+ return undefined;
+ }
+ }
+ return getCompletionEntryDisplayName(displayName, target, performCharacterChecks);
+ }
+ /**
+ * Get a displayName from a given for completion list, performing any necessary quotes stripping
+ * and checking whether the name is valid identifier name.
+ */
+ function getCompletionEntryDisplayName(name, target, performCharacterChecks) {
+ if (!name) {
+ return undefined;
+ }
+ name = ts.stripQuotes(name);
+ if (!name) {
+ return undefined;
+ }
+ // If the user entered name for the symbol was quoted, removing the quotes is not enough, as the name could be an
+ // invalid identifier name. We need to check if whatever was inside the quotes is actually a valid identifier name.
+ // e.g "b a" is valid quoted name but when we strip off the quotes, it is invalid.
+ // We, thus, need to check if whatever was inside the quotes is actually a valid identifier name.
+ if (performCharacterChecks) {
+ if (!ts.isIdentifierStart(name.charCodeAt(0), target)) {
+ return undefined;
+ }
+ for (var i = 1, n = name.length; i < n; i++) {
+ if (!ts.isIdentifierPart(name.charCodeAt(i), target)) {
+ return undefined;
+ }
+ }
+ }
+ return name;
+ }
+ function getCompletionData(fileName, position) {
+ var typeChecker = program.getTypeChecker();
+ var syntacticStart = new Date().getTime();
+ var sourceFile = getValidSourceFile(fileName);
+ var isJavaScriptFile = ts.isJavaScript(fileName);
+ var isJsDocTagName = false;
+ var start = new Date().getTime();
+ var currentToken = ts.getTokenAtPosition(sourceFile, position);
+ log("getCompletionData: Get current token: " + (new Date().getTime() - start));
+ start = new Date().getTime();
+ // Completion not allowed inside comments, bail out if this is the case
+ var insideComment = isInsideComment(sourceFile, currentToken, position);
+ log("getCompletionData: Is inside comment: " + (new Date().getTime() - start));
+ if (insideComment) {
+ // The current position is next to the '@' sign, when no tag name being provided yet.
+ // Provide a full list of tag names
+ if (ts.hasDocComment(sourceFile, position) && sourceFile.text.charCodeAt(position - 1) === 64 /* at */) {
+ isJsDocTagName = true;
+ }
+ // Completion should work inside certain JsDoc tags. For example:
+ // /** @type {number | string} */
+ // Completion should work in the brackets
+ var insideJsDocTagExpression = false;
+ var tag = ts.getJsDocTagAtPosition(sourceFile, position);
+ if (tag) {
+ if (tag.tagName.pos <= position && position <= tag.tagName.end) {
+ isJsDocTagName = true;
+ }
+ switch (tag.kind) {
+ case 269 /* JSDocTypeTag */:
+ case 267 /* JSDocParameterTag */:
+ case 268 /* JSDocReturnTag */:
+ var tagWithExpression = tag;
+ if (tagWithExpression.typeExpression) {
+ insideJsDocTagExpression = tagWithExpression.typeExpression.pos < position && position < tagWithExpression.typeExpression.end;
+ }
+ break;
+ }
+ }
+ if (isJsDocTagName) {
+ return { symbols: undefined, isMemberCompletion: false, isNewIdentifierLocation: false, location: undefined, isRightOfDot: false, isJsDocTagName: isJsDocTagName };
+ }
+ if (!insideJsDocTagExpression) {
+ // Proceed if the current position is in jsDoc tag expression; otherwise it is a normal
+ // comment or the plain text part of a jsDoc comment, so no completion should be available
+ log("Returning an empty list because completion was inside a regular comment or plain text part of a JsDoc comment.");
+ return undefined;
+ }
+ }
+ start = new Date().getTime();
+ var previousToken = ts.findPrecedingToken(position, sourceFile);
+ log("getCompletionData: Get previous token 1: " + (new Date().getTime() - start));
+ // The decision to provide completion depends on the contextToken, which is determined through the previousToken.
+ // Note: 'previousToken' (and thus 'contextToken') can be undefined if we are the beginning of the file
+ var contextToken = previousToken;
+ // Check if the caret is at the end of an identifier; this is a partial identifier that we want to complete: e.g. a.toS|
+ // Skip this partial identifier and adjust the contextToken to the token that precedes it.
+ if (contextToken && position <= contextToken.end && ts.isWord(contextToken.kind)) {
+ var start_3 = new Date().getTime();
+ contextToken = ts.findPrecedingToken(contextToken.getFullStart(), sourceFile);
+ log("getCompletionData: Get previous token 2: " + (new Date().getTime() - start_3));
+ }
+ // Find the node where completion is requested on.
+ // Also determine whether we are trying to complete with members of that node
+ // or attributes of a JSX tag.
+ var node = currentToken;
+ var isRightOfDot = false;
+ var isRightOfOpenTag = false;
+ var isStartingCloseTag = false;
+ var location = ts.getTouchingPropertyName(sourceFile, position);
+ if (contextToken) {
+ // Bail out if this is a known invalid completion location
+ if (isCompletionListBlocker(contextToken)) {
+ log("Returning an empty list because completion was requested in an invalid position.");
+ return undefined;
+ }
+ var parent_9 = contextToken.parent, kind = contextToken.kind;
+ if (kind === 21 /* DotToken */) {
+ if (parent_9.kind === 166 /* PropertyAccessExpression */) {
+ node = contextToken.parent.expression;
+ isRightOfDot = true;
+ }
+ else if (parent_9.kind === 135 /* QualifiedName */) {
+ node = contextToken.parent.left;
+ isRightOfDot = true;
+ }
+ else {
+ // There is nothing that precedes the dot, so this likely just a stray character
+ // or leading into a '...' token. Just bail out instead.
+ return undefined;
+ }
+ }
+ else if (sourceFile.languageVariant === 1 /* JSX */) {
+ if (kind === 25 /* LessThanToken */) {
+ isRightOfOpenTag = true;
+ location = contextToken;
+ }
+ else if (kind === 39 /* SlashToken */ && contextToken.parent.kind === 237 /* JsxClosingElement */) {
+ isStartingCloseTag = true;
+ }
+ }
+ }
+ var semanticStart = new Date().getTime();
+ var isMemberCompletion;
+ var isNewIdentifierLocation;
+ var symbols = [];
+ if (isRightOfDot) {
+ getTypeScriptMemberSymbols();
+ }
+ else if (isRightOfOpenTag) {
+ var tagSymbols = typeChecker.getJsxIntrinsicTagNames();
+ if (tryGetGlobalSymbols()) {
+ symbols = tagSymbols.concat(symbols.filter(function (s) { return !!(s.flags & 107455 /* Value */); }));
+ }
+ else {
+ symbols = tagSymbols;
+ }
+ isMemberCompletion = true;
+ isNewIdentifierLocation = false;
+ }
+ else if (isStartingCloseTag) {
+ var tagName = contextToken.parent.parent.openingElement.tagName;
+ symbols = [typeChecker.getSymbolAtLocation(tagName)];
+ isMemberCompletion = true;
+ isNewIdentifierLocation = false;
+ }
+ else {
+ // For JavaScript or TypeScript, if we're not after a dot, then just try to get the
+ // global symbols in scope. These results should be valid for either language as
+ // the set of symbols that can be referenced from this location.
+ if (!tryGetGlobalSymbols()) {
+ return undefined;
+ }
+ }
+ log("getCompletionData: Semantic work: " + (new Date().getTime() - semanticStart));
+ return { symbols: symbols, isMemberCompletion: isMemberCompletion, isNewIdentifierLocation: isNewIdentifierLocation, location: location, isRightOfDot: (isRightOfDot || isRightOfOpenTag), isJsDocTagName: isJsDocTagName };
+ function getTypeScriptMemberSymbols() {
+ // Right of dot member completion list
+ isMemberCompletion = true;
+ isNewIdentifierLocation = false;
+ if (node.kind === 69 /* Identifier */ || node.kind === 135 /* QualifiedName */ || node.kind === 166 /* PropertyAccessExpression */) {
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ // This is an alias, follow what it aliases
+ if (symbol && symbol.flags & 8388608 /* Alias */) {
+ symbol = typeChecker.getAliasedSymbol(symbol);
+ }
+ if (symbol && symbol.flags & 1952 /* HasExports */) {
+ // Extract module or enum members
+ var exportedSymbols = typeChecker.getExportsOfModule(symbol);
+ ts.forEach(exportedSymbols, function (symbol) {
+ if (typeChecker.isValidPropertyAccess((node.parent), symbol.name)) {
+ symbols.push(symbol);
+ }
+ });
+ }
+ }
+ var type = typeChecker.getTypeAtLocation(node);
+ addTypeProperties(type);
+ }
+ function addTypeProperties(type) {
+ if (type) {
+ // Filter private properties
+ for (var _i = 0, _a = type.getApparentProperties(); _i < _a.length; _i++) {
+ var symbol = _a[_i];
+ if (typeChecker.isValidPropertyAccess((node.parent), symbol.name)) {
+ symbols.push(symbol);
+ }
+ }
+ if (isJavaScriptFile && type.flags & 16384 /* Union */) {
+ // In javascript files, for union types, we don't just get the members that
+ // the individual types have in common, we also include all the members that
+ // each individual type has. This is because we're going to add all identifiers
+ // anyways. So we might as well elevate the members that were at least part
+ // of the individual types to a higher status since we know what they are.
+ var unionType = type;
+ for (var _b = 0, _c = unionType.types; _b < _c.length; _b++) {
+ var elementType = _c[_b];
+ addTypeProperties(elementType);
+ }
+ }
+ }
+ }
+ function tryGetGlobalSymbols() {
+ var objectLikeContainer;
+ var namedImportsOrExports;
+ var jsxContainer;
+ if (objectLikeContainer = tryGetObjectLikeCompletionContainer(contextToken)) {
+ return tryGetObjectLikeCompletionSymbols(objectLikeContainer);
+ }
+ if (namedImportsOrExports = tryGetNamedImportsOrExportsForCompletion(contextToken)) {
+ // cursor is in an import clause
+ // try to show exported member for imported module
+ return tryGetImportOrExportClauseCompletionSymbols(namedImportsOrExports);
+ }
+ if (jsxContainer = tryGetContainingJsxElement(contextToken)) {
+ var attrsType;
+ if ((jsxContainer.kind === 234 /* JsxSelfClosingElement */) || (jsxContainer.kind === 235 /* JsxOpeningElement */)) {
+ // Cursor is inside a JSX self-closing element or opening element
+ attrsType = typeChecker.getJsxElementAttributesType(jsxContainer);
+ if (attrsType) {
+ symbols = filterJsxAttributes(typeChecker.getPropertiesOfType(attrsType), jsxContainer.attributes);
+ isMemberCompletion = true;
+ isNewIdentifierLocation = false;
+ return true;
+ }
+ }
+ }
+ // Get all entities in the current scope.
+ isMemberCompletion = false;
+ isNewIdentifierLocation = isNewIdentifierDefinitionLocation(contextToken);
+ if (previousToken !== contextToken) {
+ ts.Debug.assert(!!previousToken, "Expected 'contextToken' to be defined when different from 'previousToken'.");
+ }
+ // We need to find the node that will give us an appropriate scope to begin
+ // aggregating completion candidates. This is achieved in 'getScopeNode'
+ // by finding the first node that encompasses a position, accounting for whether a node
+ // is "complete" to decide whether a position belongs to the node.
+ //
+ // However, at the end of an identifier, we are interested in the scope of the identifier
+ // itself, but fall outside of the identifier. For instance:
+ //
+ // xyz => x$
+ //
+ // the cursor is outside of both the 'x' and the arrow function 'xyz => x',
+ // so 'xyz' is not returned in our results.
+ //
+ // We define 'adjustedPosition' so that we may appropriately account for
+ // being at the end of an identifier. The intention is that if requesting completion
+ // at the end of an identifier, it should be effectively equivalent to requesting completion
+ // anywhere inside/at the beginning of the identifier. So in the previous case, the
+ // 'adjustedPosition' will work as if requesting completion in the following:
+ //
+ // xyz => $x
+ //
+ // If previousToken !== contextToken, then
+ // - 'contextToken' was adjusted to the token prior to 'previousToken'
+ // because we were at the end of an identifier.
+ // - 'previousToken' is defined.
+ var adjustedPosition = previousToken !== contextToken ?
+ previousToken.getStart() :
+ position;
+ var scopeNode = getScopeNode(contextToken, adjustedPosition, sourceFile) || sourceFile;
+ /// TODO filter meaning based on the current context
+ var symbolMeanings = 793056 /* Type */ | 107455 /* Value */ | 1536 /* Namespace */ | 8388608 /* Alias */;
+ symbols = typeChecker.getSymbolsInScope(scopeNode, symbolMeanings);
+ return true;
+ }
+ /**
+ * Finds the first node that "embraces" the position, so that one may
+ * accurately aggregate locals from the closest containing scope.
+ */
+ function getScopeNode(initialToken, position, sourceFile) {
+ var scope = initialToken;
+ while (scope && !ts.positionBelongsToNode(scope, position, sourceFile)) {
+ scope = scope.parent;
+ }
+ return scope;
+ }
+ function isCompletionListBlocker(contextToken) {
+ var start = new Date().getTime();
+ var result = isInStringOrRegularExpressionOrTemplateLiteral(contextToken) ||
+ isSolelyIdentifierDefinitionLocation(contextToken) ||
+ isDotOfNumericLiteral(contextToken) ||
+ isInJsxText(contextToken);
+ log("getCompletionsAtPosition: isCompletionListBlocker: " + (new Date().getTime() - start));
+ return result;
+ }
+ function isInJsxText(contextToken) {
+ if (contextToken.kind === 236 /* JsxText */) {
+ return true;
+ }
+ if (contextToken.kind === 27 /* GreaterThanToken */ && contextToken.parent) {
+ if (contextToken.parent.kind === 235 /* JsxOpeningElement */) {
+ return true;
+ }
+ if (contextToken.parent.kind === 237 /* JsxClosingElement */ || contextToken.parent.kind === 234 /* JsxSelfClosingElement */) {
+ return contextToken.parent.parent && contextToken.parent.parent.kind === 233 /* JsxElement */;
+ }
+ }
+ return false;
+ }
+ function isNewIdentifierDefinitionLocation(previousToken) {
+ if (previousToken) {
+ var containingNodeKind = previousToken.parent.kind;
+ switch (previousToken.kind) {
+ case 24 /* CommaToken */:
+ return containingNodeKind === 168 /* CallExpression */ // func( a, |
+ || containingNodeKind === 144 /* Constructor */ // constructor( a, | /* public, protected, private keywords are allowed here, so show completion */
+ || containingNodeKind === 169 /* NewExpression */ // new C(a, |
+ || containingNodeKind === 164 /* ArrayLiteralExpression */ // [a, |
+ || containingNodeKind === 181 /* BinaryExpression */ // let x = (a, |
+ || containingNodeKind === 152 /* FunctionType */; // var x: (s: string, list|
+ case 17 /* OpenParenToken */:
+ return containingNodeKind === 168 /* CallExpression */ // func( |
+ || containingNodeKind === 144 /* Constructor */ // constructor( |
+ || containingNodeKind === 169 /* NewExpression */ // new C(a|
+ || containingNodeKind === 172 /* ParenthesizedExpression */ // let x = (a|
+ || containingNodeKind === 160 /* ParenthesizedType */; // function F(pred: (a| /* this can become an arrow function, where 'a' is the argument */
+ case 19 /* OpenBracketToken */:
+ return containingNodeKind === 164 /* ArrayLiteralExpression */ // [ |
+ || containingNodeKind === 149 /* IndexSignature */ // [ | : string ]
+ || containingNodeKind === 136 /* ComputedPropertyName */; // [ | /* this can become an index signature */
+ case 125 /* ModuleKeyword */: // module |
+ case 126 /* NamespaceKeyword */:
+ return true;
+ case 21 /* DotToken */:
+ return containingNodeKind === 218 /* ModuleDeclaration */; // module A.|
+ case 15 /* OpenBraceToken */:
+ return containingNodeKind === 214 /* ClassDeclaration */; // class A{ |
+ case 56 /* EqualsToken */:
+ return containingNodeKind === 211 /* VariableDeclaration */ // let x = a|
+ || containingNodeKind === 181 /* BinaryExpression */; // x = a|
+ case 12 /* TemplateHead */:
+ return containingNodeKind === 183 /* TemplateExpression */; // `aa ${|
+ case 13 /* TemplateMiddle */:
+ return containingNodeKind === 190 /* TemplateSpan */; // `aa ${10} dd ${|
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ return containingNodeKind === 141 /* PropertyDeclaration */; // class A{ public |
+ }
+ // Previous token may have been a keyword that was converted to an identifier.
+ switch (previousToken.getText()) {
+ case "public":
+ case "protected":
+ case "private":
+ return true;
+ }
+ }
+ return false;
+ }
+ function isInStringOrRegularExpressionOrTemplateLiteral(contextToken) {
+ if (contextToken.kind === 9 /* StringLiteral */
+ || contextToken.kind === 10 /* RegularExpressionLiteral */
+ || ts.isTemplateLiteralKind(contextToken.kind)) {
+ var start_4 = contextToken.getStart();
+ var end = contextToken.getEnd();
+ // To be "in" one of these literals, the position has to be:
+ // 1. entirely within the token text.
+ // 2. at the end position of an unterminated token.
+ // 3. at the end of a regular expression (due to trailing flags like '/foo/g').
+ if (start_4 < position && position < end) {
+ return true;
+ }
+ if (position === end) {
+ return !!contextToken.isUnterminated
+ || contextToken.kind === 10 /* RegularExpressionLiteral */;
+ }
+ }
+ return false;
+ }
+ /**
+ * Aggregates relevant symbols for completion in object literals and object binding patterns.
+ * Relevant symbols are stored in the captured 'symbols' variable.
+ *
+ * @returns true if 'symbols' was successfully populated; false otherwise.
+ */
+ function tryGetObjectLikeCompletionSymbols(objectLikeContainer) {
+ // We're looking up possible property names from contextual/inferred/declared type.
+ isMemberCompletion = true;
+ var typeForObject;
+ var existingMembers;
+ if (objectLikeContainer.kind === 165 /* ObjectLiteralExpression */) {
+ // We are completing on contextual types, but may also include properties
+ // other than those within the declared type.
+ isNewIdentifierLocation = true;
+ typeForObject = typeChecker.getContextualType(objectLikeContainer);
+ existingMembers = objectLikeContainer.properties;
+ }
+ else if (objectLikeContainer.kind === 161 /* ObjectBindingPattern */) {
+ // We are *only* completing on properties from the type being destructured.
+ isNewIdentifierLocation = false;
+ var rootDeclaration = ts.getRootDeclaration(objectLikeContainer.parent);
+ if (ts.isVariableLike(rootDeclaration)) {
+ // We don't want to complete using the type acquired by the shape
+ // of the binding pattern; we are only interested in types acquired
+ // through type declaration or inference.
+ if (rootDeclaration.initializer || rootDeclaration.type) {
+ typeForObject = typeChecker.getTypeAtLocation(objectLikeContainer);
+ existingMembers = objectLikeContainer.elements;
+ }
+ }
+ else {
+ ts.Debug.fail("Root declaration is not variable-like.");
+ }
+ }
+ else {
+ ts.Debug.fail("Expected object literal or binding pattern, got " + objectLikeContainer.kind);
+ }
+ if (!typeForObject) {
+ return false;
+ }
+ var typeMembers = typeChecker.getPropertiesOfType(typeForObject);
+ if (typeMembers && typeMembers.length > 0) {
+ // Add filtered items to the completion list
+ symbols = filterObjectMembersList(typeMembers, existingMembers);
+ }
+ return true;
+ }
+ /**
+ * Aggregates relevant symbols for completion in import clauses and export clauses
+ * whose declarations have a module specifier; for instance, symbols will be aggregated for
+ *
+ * import { | } from "moduleName";
+ * export { a as foo, | } from "moduleName";
+ *
+ * but not for
+ *
+ * export { | };
+ *
+ * Relevant symbols are stored in the captured 'symbols' variable.
+ *
+ * @returns true if 'symbols' was successfully populated; false otherwise.
+ */
+ function tryGetImportOrExportClauseCompletionSymbols(namedImportsOrExports) {
+ var declarationKind = namedImportsOrExports.kind === 225 /* NamedImports */ ?
+ 222 /* ImportDeclaration */ :
+ 228 /* ExportDeclaration */;
+ var importOrExportDeclaration = ts.getAncestor(namedImportsOrExports, declarationKind);
+ var moduleSpecifier = importOrExportDeclaration.moduleSpecifier;
+ if (!moduleSpecifier) {
+ return false;
+ }
+ isMemberCompletion = true;
+ isNewIdentifierLocation = false;
+ var exports;
+ var moduleSpecifierSymbol = typeChecker.getSymbolAtLocation(importOrExportDeclaration.moduleSpecifier);
+ if (moduleSpecifierSymbol) {
+ exports = typeChecker.getExportsOfModule(moduleSpecifierSymbol);
+ }
+ symbols = exports ? filterNamedImportOrExportCompletionItems(exports, namedImportsOrExports.elements) : emptyArray;
+ return true;
+ }
+ /**
+ * Returns the immediate owning object literal or binding pattern of a context token,
+ * on the condition that one exists and that the context implies completion should be given.
+ */
+ function tryGetObjectLikeCompletionContainer(contextToken) {
+ if (contextToken) {
+ switch (contextToken.kind) {
+ case 15 /* OpenBraceToken */: // let x = { |
+ case 24 /* CommaToken */:
+ var parent_10 = contextToken.parent;
+ if (parent_10 && (parent_10.kind === 165 /* ObjectLiteralExpression */ || parent_10.kind === 161 /* ObjectBindingPattern */)) {
+ return parent_10;
+ }
+ break;
+ }
+ }
+ return undefined;
+ }
+ /**
+ * Returns the containing list of named imports or exports of a context token,
+ * on the condition that one exists and that the context implies completion should be given.
+ */
+ function tryGetNamedImportsOrExportsForCompletion(contextToken) {
+ if (contextToken) {
+ switch (contextToken.kind) {
+ case 15 /* OpenBraceToken */: // import { |
+ case 24 /* CommaToken */:
+ switch (contextToken.parent.kind) {
+ case 225 /* NamedImports */:
+ case 229 /* NamedExports */:
+ return contextToken.parent;
+ }
+ }
+ }
+ return undefined;
+ }
+ function tryGetContainingJsxElement(contextToken) {
+ if (contextToken) {
+ var parent_11 = contextToken.parent;
+ switch (contextToken.kind) {
+ case 26 /* LessThanSlashToken */:
+ case 39 /* SlashToken */:
+ case 69 /* Identifier */:
+ case 238 /* JsxAttribute */:
+ case 239 /* JsxSpreadAttribute */:
+ if (parent_11 && (parent_11.kind === 234 /* JsxSelfClosingElement */ || parent_11.kind === 235 /* JsxOpeningElement */)) {
+ return parent_11;
+ }
+ else if (parent_11.kind === 238 /* JsxAttribute */) {
+ return parent_11.parent;
+ }
+ break;
+ // The context token is the closing } or " of an attribute, which means
+ // its parent is a JsxExpression, whose parent is a JsxAttribute,
+ // whose parent is a JsxOpeningLikeElement
+ case 9 /* StringLiteral */:
+ if (parent_11 && ((parent_11.kind === 238 /* JsxAttribute */) || (parent_11.kind === 239 /* JsxSpreadAttribute */))) {
+ return parent_11.parent;
+ }
+ break;
+ case 16 /* CloseBraceToken */:
+ if (parent_11 &&
+ parent_11.kind === 240 /* JsxExpression */ &&
+ parent_11.parent &&
+ (parent_11.parent.kind === 238 /* JsxAttribute */)) {
+ return parent_11.parent.parent;
+ }
+ if (parent_11 && parent_11.kind === 239 /* JsxSpreadAttribute */) {
+ return parent_11.parent;
+ }
+ break;
+ }
+ }
+ return undefined;
+ }
+ function isFunction(kind) {
+ switch (kind) {
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 147 /* CallSignature */:
+ case 148 /* ConstructSignature */:
+ case 149 /* IndexSignature */:
+ return true;
+ }
+ return false;
+ }
+ /**
+ * @returns true if we are certain that the currently edited location must define a new location; false otherwise.
+ */
+ function isSolelyIdentifierDefinitionLocation(contextToken) {
+ var containingNodeKind = contextToken.parent.kind;
+ switch (contextToken.kind) {
+ case 24 /* CommaToken */:
+ return containingNodeKind === 211 /* VariableDeclaration */ ||
+ containingNodeKind === 212 /* VariableDeclarationList */ ||
+ containingNodeKind === 193 /* VariableStatement */ ||
+ containingNodeKind === 217 /* EnumDeclaration */ ||
+ isFunction(containingNodeKind) ||
+ containingNodeKind === 214 /* ClassDeclaration */ ||
+ containingNodeKind === 186 /* ClassExpression */ ||
+ containingNodeKind === 215 /* InterfaceDeclaration */ ||
+ containingNodeKind === 162 /* ArrayBindingPattern */ ||
+ containingNodeKind === 216 /* TypeAliasDeclaration */; // type Map, K, |
+ case 21 /* DotToken */:
+ return containingNodeKind === 162 /* ArrayBindingPattern */; // var [.|
+ case 54 /* ColonToken */:
+ return containingNodeKind === 163 /* BindingElement */; // var {x :html|
+ case 19 /* OpenBracketToken */:
+ return containingNodeKind === 162 /* ArrayBindingPattern */; // var [x|
+ case 17 /* OpenParenToken */:
+ return containingNodeKind === 244 /* CatchClause */ ||
+ isFunction(containingNodeKind);
+ case 15 /* OpenBraceToken */:
+ return containingNodeKind === 217 /* EnumDeclaration */ ||
+ containingNodeKind === 215 /* InterfaceDeclaration */ ||
+ containingNodeKind === 155 /* TypeLiteral */; // let x : { |
+ case 23 /* SemicolonToken */:
+ return containingNodeKind === 140 /* PropertySignature */ &&
+ contextToken.parent && contextToken.parent.parent &&
+ (contextToken.parent.parent.kind === 215 /* InterfaceDeclaration */ ||
+ contextToken.parent.parent.kind === 155 /* TypeLiteral */); // let x : { a; |
+ case 25 /* LessThanToken */:
+ return containingNodeKind === 214 /* ClassDeclaration */ ||
+ containingNodeKind === 186 /* ClassExpression */ ||
+ containingNodeKind === 215 /* InterfaceDeclaration */ ||
+ containingNodeKind === 216 /* TypeAliasDeclaration */ ||
+ isFunction(containingNodeKind);
+ case 113 /* StaticKeyword */:
+ return containingNodeKind === 141 /* PropertyDeclaration */;
+ case 22 /* DotDotDotToken */:
+ return containingNodeKind === 138 /* Parameter */ ||
+ (contextToken.parent && contextToken.parent.parent &&
+ contextToken.parent.parent.kind === 162 /* ArrayBindingPattern */); // var [...z|
+ case 112 /* PublicKeyword */:
+ case 110 /* PrivateKeyword */:
+ case 111 /* ProtectedKeyword */:
+ return containingNodeKind === 138 /* Parameter */;
+ case 116 /* AsKeyword */:
+ return containingNodeKind === 226 /* ImportSpecifier */ ||
+ containingNodeKind === 230 /* ExportSpecifier */ ||
+ containingNodeKind === 224 /* NamespaceImport */;
+ case 73 /* ClassKeyword */:
+ case 81 /* EnumKeyword */:
+ case 107 /* InterfaceKeyword */:
+ case 87 /* FunctionKeyword */:
+ case 102 /* VarKeyword */:
+ case 123 /* GetKeyword */:
+ case 129 /* SetKeyword */:
+ case 89 /* ImportKeyword */:
+ case 108 /* LetKeyword */:
+ case 74 /* ConstKeyword */:
+ case 114 /* YieldKeyword */:
+ case 132 /* TypeKeyword */:
+ return true;
+ }
+ // Previous token may have been a keyword that was converted to an identifier.
+ switch (contextToken.getText()) {
+ case "abstract":
+ case "async":
+ case "class":
+ case "const":
+ case "declare":
+ case "enum":
+ case "function":
+ case "interface":
+ case "let":
+ case "private":
+ case "protected":
+ case "public":
+ case "static":
+ case "var":
+ case "yield":
+ return true;
+ }
+ return false;
+ }
+ function isDotOfNumericLiteral(contextToken) {
+ if (contextToken.kind === 8 /* NumericLiteral */) {
+ var text = contextToken.getFullText();
+ return text.charAt(text.length - 1) === ".";
+ }
+ return false;
+ }
+ /**
+ * Filters out completion suggestions for named imports or exports.
+ *
+ * @param exportsOfModule The list of symbols which a module exposes.
+ * @param namedImportsOrExports The list of existing import/export specifiers in the import/export clause.
+ *
+ * @returns Symbols to be suggested at an import/export clause, barring those whose named imports/exports
+ * do not occur at the current position and have not otherwise been typed.
+ */
+ function filterNamedImportOrExportCompletionItems(exportsOfModule, namedImportsOrExports) {
+ var exisingImportsOrExports = {};
+ for (var _i = 0; _i < namedImportsOrExports.length; _i++) {
+ var element = namedImportsOrExports[_i];
+ // If this is the current item we are editing right now, do not filter it out
+ if (element.getStart() <= position && position <= element.getEnd()) {
+ continue;
+ }
+ var name_32 = element.propertyName || element.name;
+ exisingImportsOrExports[name_32.text] = true;
+ }
+ if (ts.isEmpty(exisingImportsOrExports)) {
+ return exportsOfModule;
+ }
+ return ts.filter(exportsOfModule, function (e) { return !ts.lookUp(exisingImportsOrExports, e.name); });
+ }
+ /**
+ * Filters out completion suggestions for named imports or exports.
+ *
+ * @returns Symbols to be suggested in an object binding pattern or object literal expression, barring those whose declarations
+ * do not occur at the current position and have not otherwise been typed.
+ */
+ function filterObjectMembersList(contextualMemberSymbols, existingMembers) {
+ if (!existingMembers || existingMembers.length === 0) {
+ return contextualMemberSymbols;
+ }
+ var existingMemberNames = {};
+ for (var _i = 0; _i < existingMembers.length; _i++) {
+ var m = existingMembers[_i];
+ // Ignore omitted expressions for missing members
+ if (m.kind !== 245 /* PropertyAssignment */ &&
+ m.kind !== 246 /* ShorthandPropertyAssignment */ &&
+ m.kind !== 163 /* BindingElement */) {
+ continue;
+ }
+ // If this is the current item we are editing right now, do not filter it out
+ if (m.getStart() <= position && position <= m.getEnd()) {
+ continue;
+ }
+ var existingName = void 0;
+ if (m.kind === 163 /* BindingElement */ && m.propertyName) {
+ existingName = m.propertyName.text;
+ }
+ else {
+ // TODO(jfreeman): Account for computed property name
+ // NOTE: if one only performs this step when m.name is an identifier,
+ // things like '__proto__' are not filtered out.
+ existingName = m.name.text;
+ }
+ existingMemberNames[existingName] = true;
+ }
+ return ts.filter(contextualMemberSymbols, function (m) { return !ts.lookUp(existingMemberNames, m.name); });
+ }
+ /**
+ * Filters out completion suggestions from 'symbols' according to existing JSX attributes.
+ *
+ * @returns Symbols to be suggested in a JSX element, barring those whose attributes
+ * do not occur at the current position and have not otherwise been typed.
+ */
+ function filterJsxAttributes(symbols, attributes) {
+ var seenNames = {};
+ for (var _i = 0; _i < attributes.length; _i++) {
+ var attr = attributes[_i];
+ // If this is the current item we are editing right now, do not filter it out
+ if (attr.getStart() <= position && position <= attr.getEnd()) {
+ continue;
+ }
+ if (attr.kind === 238 /* JsxAttribute */) {
+ seenNames[attr.name.text] = true;
+ }
+ }
+ return ts.filter(symbols, function (a) { return !ts.lookUp(seenNames, a.name); });
+ }
+ }
+ function getCompletionsAtPosition(fileName, position) {
+ synchronizeHostData();
+ var completionData = getCompletionData(fileName, position);
+ if (!completionData) {
+ return undefined;
+ }
+ var symbols = completionData.symbols, isMemberCompletion = completionData.isMemberCompletion, isNewIdentifierLocation = completionData.isNewIdentifierLocation, location = completionData.location, isRightOfDot = completionData.isRightOfDot, isJsDocTagName = completionData.isJsDocTagName;
+ var entries;
+ if (isJsDocTagName) {
+ // If the current position is a jsDoc tag name, only tag names should be provided for completion
+ return { isMemberCompletion: false, isNewIdentifierLocation: false, entries: getAllJsDocCompletionEntries() };
+ }
+ if (isRightOfDot && ts.isJavaScript(fileName)) {
+ entries = getCompletionEntriesFromSymbols(symbols);
+ ts.addRange(entries, getJavaScriptCompletionEntries());
+ }
+ else {
+ if (!symbols || symbols.length === 0) {
+ return undefined;
+ }
+ entries = getCompletionEntriesFromSymbols(symbols);
+ }
+ // Add keywords if this is not a member completion list
+ if (!isMemberCompletion && !isJsDocTagName) {
+ ts.addRange(entries, keywordCompletions);
+ }
+ return { isMemberCompletion: isMemberCompletion, isNewIdentifierLocation: isNewIdentifierLocation, entries: entries };
+ function getJavaScriptCompletionEntries() {
+ var entries = [];
+ var allNames = {};
+ var target = program.getCompilerOptions().target;
+ for (var _i = 0, _a = program.getSourceFiles(); _i < _a.length; _i++) {
+ var sourceFile = _a[_i];
+ var nameTable = getNameTable(sourceFile);
+ for (var name_33 in nameTable) {
+ if (!allNames[name_33]) {
+ allNames[name_33] = name_33;
+ var displayName = getCompletionEntryDisplayName(name_33, target, /*performCharacterChecks:*/ true);
+ if (displayName) {
+ var entry = {
+ name: displayName,
+ kind: ScriptElementKind.warning,
+ kindModifiers: "",
+ sortText: "1"
+ };
+ entries.push(entry);
+ }
+ }
+ }
+ }
+ return entries;
+ }
+ function getAllJsDocCompletionEntries() {
+ return jsDocCompletionEntries || (jsDocCompletionEntries = ts.map(jsDocTagNames, function (tagName) {
+ return {
+ name: tagName,
+ kind: ScriptElementKind.keyword,
+ kindModifiers: "",
+ sortText: "0"
+ };
+ }));
+ }
+ function createCompletionEntry(symbol, location) {
+ // Try to get a valid display name for this symbol, if we could not find one, then ignore it.
+ // We would like to only show things that can be added after a dot, so for instance numeric properties can
+ // not be accessed with a dot (a.1 <- invalid)
+ var displayName = getCompletionEntryDisplayNameForSymbol(symbol, program.getCompilerOptions().target, /*performCharacterChecks:*/ true, location);
+ if (!displayName) {
+ return undefined;
+ }
+ // TODO(drosen): Right now we just permit *all* semantic meanings when calling
+ // 'getSymbolKind' which is permissible given that it is backwards compatible; but
+ // really we should consider passing the meaning for the node so that we don't report
+ // that a suggestion for a value is an interface. We COULD also just do what
+ // 'getSymbolModifiers' does, which is to use the first declaration.
+ // Use a 'sortText' of 0' so that all symbol completion entries come before any other
+ // entries (like JavaScript identifier entries).
+ return {
+ name: displayName,
+ kind: getSymbolKind(symbol, location),
+ kindModifiers: getSymbolModifiers(symbol),
+ sortText: "0"
+ };
+ }
+ function getCompletionEntriesFromSymbols(symbols) {
+ var start = new Date().getTime();
+ var entries = [];
+ if (symbols) {
+ var nameToSymbol = {};
+ for (var _i = 0; _i < symbols.length; _i++) {
+ var symbol = symbols[_i];
+ var entry = createCompletionEntry(symbol, location);
+ if (entry) {
+ var id = ts.escapeIdentifier(entry.name);
+ if (!ts.lookUp(nameToSymbol, id)) {
+ entries.push(entry);
+ nameToSymbol[id] = symbol;
+ }
+ }
+ }
+ }
+ log("getCompletionsAtPosition: getCompletionEntriesFromSymbols: " + (new Date().getTime() - start));
+ return entries;
+ }
+ }
+ function getCompletionEntryDetails(fileName, position, entryName) {
+ synchronizeHostData();
+ // Compute all the completion symbols again.
+ var completionData = getCompletionData(fileName, position);
+ if (completionData) {
+ var symbols = completionData.symbols, location_2 = completionData.location;
+ // Find the symbol with the matching entry name.
+ var target = program.getCompilerOptions().target;
+ // We don't need to perform character checks here because we're only comparing the
+ // name against 'entryName' (which is known to be good), not building a new
+ // completion entry.
+ var symbol = ts.forEach(symbols, function (s) { return getCompletionEntryDisplayNameForSymbol(s, target, /*performCharacterChecks:*/ false, location_2) === entryName ? s : undefined; });
+ if (symbol) {
+ var _a = getSymbolDisplayPartsDocumentationAndSymbolKind(symbol, getValidSourceFile(fileName), location_2, location_2, 7 /* All */), displayParts = _a.displayParts, documentation = _a.documentation, symbolKind = _a.symbolKind;
+ return {
+ name: entryName,
+ kindModifiers: getSymbolModifiers(symbol),
+ kind: symbolKind,
+ displayParts: displayParts,
+ documentation: documentation
+ };
+ }
+ }
+ // Didn't find a symbol with this name. See if we can find a keyword instead.
+ var keywordCompletion = ts.forEach(keywordCompletions, function (c) { return c.name === entryName; });
+ if (keywordCompletion) {
+ return {
+ name: entryName,
+ kind: ScriptElementKind.keyword,
+ kindModifiers: ScriptElementKindModifier.none,
+ displayParts: [ts.displayPart(entryName, SymbolDisplayPartKind.keyword)],
+ documentation: undefined
+ };
+ }
+ return undefined;
+ }
+ // TODO(drosen): use contextual SemanticMeaning.
+ function getSymbolKind(symbol, location) {
+ var flags = symbol.getFlags();
+ if (flags & 32 /* Class */)
+ return ts.getDeclarationOfKind(symbol, 186 /* ClassExpression */) ?
+ ScriptElementKind.localClassElement : ScriptElementKind.classElement;
+ if (flags & 384 /* Enum */)
+ return ScriptElementKind.enumElement;
+ if (flags & 524288 /* TypeAlias */)
+ return ScriptElementKind.typeElement;
+ if (flags & 64 /* Interface */)
+ return ScriptElementKind.interfaceElement;
+ if (flags & 262144 /* TypeParameter */)
+ return ScriptElementKind.typeParameterElement;
+ var result = getSymbolKindOfConstructorPropertyMethodAccessorFunctionOrVar(symbol, flags, location);
+ if (result === ScriptElementKind.unknown) {
+ if (flags & 262144 /* TypeParameter */)
+ return ScriptElementKind.typeParameterElement;
+ if (flags & 8 /* EnumMember */)
+ return ScriptElementKind.variableElement;
+ if (flags & 8388608 /* Alias */)
+ return ScriptElementKind.alias;
+ if (flags & 1536 /* Module */)
+ return ScriptElementKind.moduleElement;
+ }
+ return result;
+ }
+ function getSymbolKindOfConstructorPropertyMethodAccessorFunctionOrVar(symbol, flags, location) {
+ var typeChecker = program.getTypeChecker();
+ if (typeChecker.isUndefinedSymbol(symbol)) {
+ return ScriptElementKind.variableElement;
+ }
+ if (typeChecker.isArgumentsSymbol(symbol)) {
+ return ScriptElementKind.localVariableElement;
+ }
+ if (flags & 3 /* Variable */) {
+ if (ts.isFirstDeclarationOfSymbolParameter(symbol)) {
+ return ScriptElementKind.parameterElement;
+ }
+ else if (symbol.valueDeclaration && ts.isConst(symbol.valueDeclaration)) {
+ return ScriptElementKind.constElement;
+ }
+ else if (ts.forEach(symbol.declarations, ts.isLet)) {
+ return ScriptElementKind.letElement;
+ }
+ return isLocalVariableOrFunction(symbol) ? ScriptElementKind.localVariableElement : ScriptElementKind.variableElement;
+ }
+ if (flags & 16 /* Function */)
+ return isLocalVariableOrFunction(symbol) ? ScriptElementKind.localFunctionElement : ScriptElementKind.functionElement;
+ if (flags & 32768 /* GetAccessor */)
+ return ScriptElementKind.memberGetAccessorElement;
+ if (flags & 65536 /* SetAccessor */)
+ return ScriptElementKind.memberSetAccessorElement;
+ if (flags & 8192 /* Method */)
+ return ScriptElementKind.memberFunctionElement;
+ if (flags & 16384 /* Constructor */)
+ return ScriptElementKind.constructorImplementationElement;
+ if (flags & 4 /* Property */) {
+ if (flags & 268435456 /* SyntheticProperty */) {
+ // If union property is result of union of non method (property/accessors/variables), it is labeled as property
+ var unionPropertyKind = ts.forEach(typeChecker.getRootSymbols(symbol), function (rootSymbol) {
+ var rootSymbolFlags = rootSymbol.getFlags();
+ if (rootSymbolFlags & (98308 /* PropertyOrAccessor */ | 3 /* Variable */)) {
+ return ScriptElementKind.memberVariableElement;
+ }
+ ts.Debug.assert(!!(rootSymbolFlags & 8192 /* Method */));
+ });
+ if (!unionPropertyKind) {
+ // If this was union of all methods,
+ //make sure it has call signatures before we can label it as method
+ var typeOfUnionProperty = typeChecker.getTypeOfSymbolAtLocation(symbol, location);
+ if (typeOfUnionProperty.getCallSignatures().length) {
+ return ScriptElementKind.memberFunctionElement;
+ }
+ return ScriptElementKind.memberVariableElement;
+ }
+ return unionPropertyKind;
+ }
+ return ScriptElementKind.memberVariableElement;
+ }
+ return ScriptElementKind.unknown;
+ }
+ function getSymbolModifiers(symbol) {
+ return symbol && symbol.declarations && symbol.declarations.length > 0
+ ? ts.getNodeModifiers(symbol.declarations[0])
+ : ScriptElementKindModifier.none;
+ }
+ // TODO(drosen): Currently completion entry details passes the SemanticMeaning.All instead of using semanticMeaning of location
+ function getSymbolDisplayPartsDocumentationAndSymbolKind(symbol, sourceFile, enclosingDeclaration, location, semanticMeaning) {
+ if (semanticMeaning === void 0) { semanticMeaning = getMeaningFromLocation(location); }
+ var typeChecker = program.getTypeChecker();
+ var displayParts = [];
+ var documentation;
+ var symbolFlags = symbol.flags;
+ var symbolKind = getSymbolKindOfConstructorPropertyMethodAccessorFunctionOrVar(symbol, symbolFlags, location);
+ var hasAddedSymbolInfo;
+ var type;
+ // Class at constructor site need to be shown as constructor apart from property,method, vars
+ if (symbolKind !== ScriptElementKind.unknown || symbolFlags & 32 /* Class */ || symbolFlags & 8388608 /* Alias */) {
+ // If it is accessor they are allowed only if location is at name of the accessor
+ if (symbolKind === ScriptElementKind.memberGetAccessorElement || symbolKind === ScriptElementKind.memberSetAccessorElement) {
+ symbolKind = ScriptElementKind.memberVariableElement;
+ }
+ var signature;
+ type = typeChecker.getTypeOfSymbolAtLocation(symbol, location);
+ if (type) {
+ if (location.parent && location.parent.kind === 166 /* PropertyAccessExpression */) {
+ var right = location.parent.name;
+ // Either the location is on the right of a property access, or on the left and the right is missing
+ if (right === location || (right && right.getFullWidth() === 0)) {
+ location = location.parent;
+ }
+ }
+ // try get the call/construct signature from the type if it matches
+ var callExpression;
+ if (location.kind === 168 /* CallExpression */ || location.kind === 169 /* NewExpression */) {
+ callExpression = location;
+ }
+ else if (isCallExpressionTarget(location) || isNewExpressionTarget(location)) {
+ callExpression = location.parent;
+ }
+ if (callExpression) {
+ var candidateSignatures = [];
+ signature = typeChecker.getResolvedSignature(callExpression, candidateSignatures);
+ if (!signature && candidateSignatures.length) {
+ // Use the first candidate:
+ signature = candidateSignatures[0];
+ }
+ var useConstructSignatures = callExpression.kind === 169 /* NewExpression */ || callExpression.expression.kind === 95 /* SuperKeyword */;
+ var allSignatures = useConstructSignatures ? type.getConstructSignatures() : type.getCallSignatures();
+ if (!ts.contains(allSignatures, signature.target) && !ts.contains(allSignatures, signature)) {
+ // Get the first signature if there is one -- allSignatures may contain
+ // either the original signature or its target, so check for either
+ signature = allSignatures.length ? allSignatures[0] : undefined;
+ }
+ if (signature) {
+ if (useConstructSignatures && (symbolFlags & 32 /* Class */)) {
+ // Constructor
+ symbolKind = ScriptElementKind.constructorImplementationElement;
+ addPrefixForAnyFunctionOrVar(type.symbol, symbolKind);
+ }
+ else if (symbolFlags & 8388608 /* Alias */) {
+ symbolKind = ScriptElementKind.alias;
+ pushTypePart(symbolKind);
+ displayParts.push(ts.spacePart());
+ if (useConstructSignatures) {
+ displayParts.push(ts.keywordPart(92 /* NewKeyword */));
+ displayParts.push(ts.spacePart());
+ }
+ addFullSymbolName(symbol);
+ }
+ else {
+ addPrefixForAnyFunctionOrVar(symbol, symbolKind);
+ }
+ switch (symbolKind) {
+ case ScriptElementKind.memberVariableElement:
+ case ScriptElementKind.variableElement:
+ case ScriptElementKind.constElement:
+ case ScriptElementKind.letElement:
+ case ScriptElementKind.parameterElement:
+ case ScriptElementKind.localVariableElement:
+ // If it is call or construct signature of lambda's write type name
+ displayParts.push(ts.punctuationPart(54 /* ColonToken */));
+ displayParts.push(ts.spacePart());
+ if (useConstructSignatures) {
+ displayParts.push(ts.keywordPart(92 /* NewKeyword */));
+ displayParts.push(ts.spacePart());
+ }
+ if (!(type.flags & 65536 /* Anonymous */)) {
+ ts.addRange(displayParts, ts.symbolToDisplayParts(typeChecker, type.symbol, enclosingDeclaration, /*meaning*/ undefined, 1 /* WriteTypeParametersOrArguments */));
+ }
+ addSignatureDisplayParts(signature, allSignatures, 8 /* WriteArrowStyleSignature */);
+ break;
+ default:
+ // Just signature
+ addSignatureDisplayParts(signature, allSignatures);
+ }
+ hasAddedSymbolInfo = true;
+ }
+ }
+ else if ((isNameOfFunctionDeclaration(location) && !(symbol.flags & 98304 /* Accessor */)) ||
+ (location.kind === 121 /* ConstructorKeyword */ && location.parent.kind === 144 /* Constructor */)) {
+ // get the signature from the declaration and write it
+ var functionDeclaration = location.parent;
+ var allSignatures = functionDeclaration.kind === 144 /* Constructor */ ? type.getConstructSignatures() : type.getCallSignatures();
+ if (!typeChecker.isImplementationOfOverload(functionDeclaration)) {
+ signature = typeChecker.getSignatureFromDeclaration(functionDeclaration);
+ }
+ else {
+ signature = allSignatures[0];
+ }
+ if (functionDeclaration.kind === 144 /* Constructor */) {
+ // show (constructor) Type(...) signature
+ symbolKind = ScriptElementKind.constructorImplementationElement;
+ addPrefixForAnyFunctionOrVar(type.symbol, symbolKind);
+ }
+ else {
+ // (function/method) symbol(..signature)
+ addPrefixForAnyFunctionOrVar(functionDeclaration.kind === 147 /* CallSignature */ &&
+ !(type.symbol.flags & 2048 /* TypeLiteral */ || type.symbol.flags & 4096 /* ObjectLiteral */) ? type.symbol : symbol, symbolKind);
+ }
+ addSignatureDisplayParts(signature, allSignatures);
+ hasAddedSymbolInfo = true;
+ }
+ }
+ }
+ if (symbolFlags & 32 /* Class */ && !hasAddedSymbolInfo) {
+ if (ts.getDeclarationOfKind(symbol, 186 /* ClassExpression */)) {
+ // Special case for class expressions because we would like to indicate that
+ // the class name is local to the class body (similar to function expression)
+ // (local class) class <className>
+ pushTypePart(ScriptElementKind.localClassElement);
+ }
+ else {
+ // Class declaration has name which is not local.
+ displayParts.push(ts.keywordPart(73 /* ClassKeyword */));
+ }
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ writeTypeParametersOfSymbol(symbol, sourceFile);
+ }
+ if ((symbolFlags & 64 /* Interface */) && (semanticMeaning & 2 /* Type */)) {
+ addNewLineIfDisplayPartsExist();
+ displayParts.push(ts.keywordPart(107 /* InterfaceKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ writeTypeParametersOfSymbol(symbol, sourceFile);
+ }
+ if (symbolFlags & 524288 /* TypeAlias */) {
+ addNewLineIfDisplayPartsExist();
+ displayParts.push(ts.keywordPart(132 /* TypeKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ writeTypeParametersOfSymbol(symbol, sourceFile);
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.operatorPart(56 /* EqualsToken */));
+ displayParts.push(ts.spacePart());
+ ts.addRange(displayParts, ts.typeToDisplayParts(typeChecker, typeChecker.getDeclaredTypeOfSymbol(symbol), enclosingDeclaration));
+ }
+ if (symbolFlags & 384 /* Enum */) {
+ addNewLineIfDisplayPartsExist();
+ if (ts.forEach(symbol.declarations, ts.isConstEnumDeclaration)) {
+ displayParts.push(ts.keywordPart(74 /* ConstKeyword */));
+ displayParts.push(ts.spacePart());
+ }
+ displayParts.push(ts.keywordPart(81 /* EnumKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ }
+ if (symbolFlags & 1536 /* Module */) {
+ addNewLineIfDisplayPartsExist();
+ var declaration = ts.getDeclarationOfKind(symbol, 218 /* ModuleDeclaration */);
+ var isNamespace = declaration && declaration.name && declaration.name.kind === 69 /* Identifier */;
+ displayParts.push(ts.keywordPart(isNamespace ? 126 /* NamespaceKeyword */ : 125 /* ModuleKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ }
+ if ((symbolFlags & 262144 /* TypeParameter */) && (semanticMeaning & 2 /* Type */)) {
+ addNewLineIfDisplayPartsExist();
+ displayParts.push(ts.punctuationPart(17 /* OpenParenToken */));
+ displayParts.push(ts.textPart("type parameter"));
+ displayParts.push(ts.punctuationPart(18 /* CloseParenToken */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.keywordPart(90 /* InKeyword */));
+ displayParts.push(ts.spacePart());
+ if (symbol.parent) {
+ // Class/Interface type parameter
+ addFullSymbolName(symbol.parent, enclosingDeclaration);
+ writeTypeParametersOfSymbol(symbol.parent, enclosingDeclaration);
+ }
+ else {
+ // Method/function type parameter
+ var container = ts.getContainingFunction(location);
+ if (container) {
+ var signatureDeclaration = ts.getDeclarationOfKind(symbol, 137 /* TypeParameter */).parent;
+ var signature = typeChecker.getSignatureFromDeclaration(signatureDeclaration);
+ if (signatureDeclaration.kind === 148 /* ConstructSignature */) {
+ displayParts.push(ts.keywordPart(92 /* NewKeyword */));
+ displayParts.push(ts.spacePart());
+ }
+ else if (signatureDeclaration.kind !== 147 /* CallSignature */ && signatureDeclaration.name) {
+ addFullSymbolName(signatureDeclaration.symbol);
+ }
+ ts.addRange(displayParts, ts.signatureToDisplayParts(typeChecker, signature, sourceFile, 32 /* WriteTypeArgumentsOfSignature */));
+ }
+ else {
+ // Type aliash type parameter
+ // For example
+ // type list<T> = T[]; // Both T will go through same code path
+ var declaration = ts.getDeclarationOfKind(symbol, 137 /* TypeParameter */).parent;
+ displayParts.push(ts.keywordPart(132 /* TypeKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(declaration.symbol);
+ writeTypeParametersOfSymbol(declaration.symbol, sourceFile);
+ }
+ }
+ }
+ if (symbolFlags & 8 /* EnumMember */) {
+ addPrefixForAnyFunctionOrVar(symbol, "enum member");
+ var declaration = symbol.declarations[0];
+ if (declaration.kind === 247 /* EnumMember */) {
+ var constantValue = typeChecker.getConstantValue(declaration);
+ if (constantValue !== undefined) {
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.operatorPart(56 /* EqualsToken */));
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.displayPart(constantValue.toString(), SymbolDisplayPartKind.numericLiteral));
+ }
+ }
+ }
+ if (symbolFlags & 8388608 /* Alias */) {
+ addNewLineIfDisplayPartsExist();
+ displayParts.push(ts.keywordPart(89 /* ImportKeyword */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ ts.forEach(symbol.declarations, function (declaration) {
+ if (declaration.kind === 221 /* ImportEqualsDeclaration */) {
+ var importEqualsDeclaration = declaration;
+ if (ts.isExternalModuleImportEqualsDeclaration(importEqualsDeclaration)) {
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.operatorPart(56 /* EqualsToken */));
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.keywordPart(127 /* RequireKeyword */));
+ displayParts.push(ts.punctuationPart(17 /* OpenParenToken */));
+ displayParts.push(ts.displayPart(ts.getTextOfNode(ts.getExternalModuleImportEqualsDeclarationExpression(importEqualsDeclaration)), SymbolDisplayPartKind.stringLiteral));
+ displayParts.push(ts.punctuationPart(18 /* CloseParenToken */));
+ }
+ else {
+ var internalAliasSymbol = typeChecker.getSymbolAtLocation(importEqualsDeclaration.moduleReference);
+ if (internalAliasSymbol) {
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.operatorPart(56 /* EqualsToken */));
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(internalAliasSymbol, enclosingDeclaration);
+ }
+ }
+ return true;
+ }
+ });
+ }
+ if (!hasAddedSymbolInfo) {
+ if (symbolKind !== ScriptElementKind.unknown) {
+ if (type) {
+ addPrefixForAnyFunctionOrVar(symbol, symbolKind);
+ // For properties, variables and local vars: show the type
+ if (symbolKind === ScriptElementKind.memberVariableElement ||
+ symbolFlags & 3 /* Variable */ ||
+ symbolKind === ScriptElementKind.localVariableElement) {
+ displayParts.push(ts.punctuationPart(54 /* ColonToken */));
+ displayParts.push(ts.spacePart());
+ // If the type is type parameter, format it specially
+ if (type.symbol && type.symbol.flags & 262144 /* TypeParameter */) {
+ var typeParameterParts = ts.mapToDisplayParts(function (writer) {
+ typeChecker.getSymbolDisplayBuilder().buildTypeParameterDisplay(type, writer, enclosingDeclaration);
+ });
+ ts.addRange(displayParts, typeParameterParts);
+ }
+ else {
+ ts.addRange(displayParts, ts.typeToDisplayParts(typeChecker, type, enclosingDeclaration));
+ }
+ }
+ else if (symbolFlags & 16 /* Function */ ||
+ symbolFlags & 8192 /* Method */ ||
+ symbolFlags & 16384 /* Constructor */ ||
+ symbolFlags & 131072 /* Signature */ ||
+ symbolFlags & 98304 /* Accessor */ ||
+ symbolKind === ScriptElementKind.memberFunctionElement) {
+ var allSignatures = type.getCallSignatures();
+ addSignatureDisplayParts(allSignatures[0], allSignatures);
+ }
+ }
+ }
+ else {
+ symbolKind = getSymbolKind(symbol, location);
+ }
+ }
+ if (!documentation) {
+ documentation = symbol.getDocumentationComment();
+ }
+ return { displayParts: displayParts, documentation: documentation, symbolKind: symbolKind };
+ function addNewLineIfDisplayPartsExist() {
+ if (displayParts.length) {
+ displayParts.push(ts.lineBreakPart());
+ }
+ }
+ function addFullSymbolName(symbol, enclosingDeclaration) {
+ var fullSymbolDisplayParts = ts.symbolToDisplayParts(typeChecker, symbol, enclosingDeclaration || sourceFile, /*meaning*/ undefined, 1 /* WriteTypeParametersOrArguments */ | 2 /* UseOnlyExternalAliasing */);
+ ts.addRange(displayParts, fullSymbolDisplayParts);
+ }
+ function addPrefixForAnyFunctionOrVar(symbol, symbolKind) {
+ addNewLineIfDisplayPartsExist();
+ if (symbolKind) {
+ pushTypePart(symbolKind);
+ displayParts.push(ts.spacePart());
+ addFullSymbolName(symbol);
+ }
+ }
+ function pushTypePart(symbolKind) {
+ switch (symbolKind) {
+ case ScriptElementKind.variableElement:
+ case ScriptElementKind.functionElement:
+ case ScriptElementKind.letElement:
+ case ScriptElementKind.constElement:
+ case ScriptElementKind.constructorImplementationElement:
+ displayParts.push(ts.textOrKeywordPart(symbolKind));
+ return;
+ default:
+ displayParts.push(ts.punctuationPart(17 /* OpenParenToken */));
+ displayParts.push(ts.textOrKeywordPart(symbolKind));
+ displayParts.push(ts.punctuationPart(18 /* CloseParenToken */));
+ return;
+ }
+ }
+ function addSignatureDisplayParts(signature, allSignatures, flags) {
+ ts.addRange(displayParts, ts.signatureToDisplayParts(typeChecker, signature, enclosingDeclaration, flags | 32 /* WriteTypeArgumentsOfSignature */));
+ if (allSignatures.length > 1) {
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.punctuationPart(17 /* OpenParenToken */));
+ displayParts.push(ts.operatorPart(35 /* PlusToken */));
+ displayParts.push(ts.displayPart((allSignatures.length - 1).toString(), SymbolDisplayPartKind.numericLiteral));
+ displayParts.push(ts.spacePart());
+ displayParts.push(ts.textPart(allSignatures.length === 2 ? "overload" : "overloads"));
+ displayParts.push(ts.punctuationPart(18 /* CloseParenToken */));
+ }
+ documentation = signature.getDocumentationComment();
+ }
+ function writeTypeParametersOfSymbol(symbol, enclosingDeclaration) {
+ var typeParameterParts = ts.mapToDisplayParts(function (writer) {
+ typeChecker.getSymbolDisplayBuilder().buildTypeParameterDisplayFromSymbol(symbol, writer, enclosingDeclaration);
+ });
+ ts.addRange(displayParts, typeParameterParts);
+ }
+ }
+ function getQuickInfoAtPosition(fileName, position) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var node = ts.getTouchingPropertyName(sourceFile, position);
+ if (!node) {
+ return undefined;
+ }
+ if (isLabelName(node)) {
+ return undefined;
+ }
+ var typeChecker = program.getTypeChecker();
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ if (!symbol) {
+ // Try getting just type at this position and show
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ case 166 /* PropertyAccessExpression */:
+ case 135 /* QualifiedName */:
+ case 97 /* ThisKeyword */:
+ case 95 /* SuperKeyword */:
+ // For the identifiers/this/super etc get the type at position
+ var type = typeChecker.getTypeAtLocation(node);
+ if (type) {
+ return {
+ kind: ScriptElementKind.unknown,
+ kindModifiers: ScriptElementKindModifier.none,
+ textSpan: ts.createTextSpan(node.getStart(), node.getWidth()),
+ displayParts: ts.typeToDisplayParts(typeChecker, type, getContainerNode(node)),
+ documentation: type.symbol ? type.symbol.getDocumentationComment() : undefined
+ };
+ }
+ }
+ return undefined;
+ }
+ var displayPartsDocumentationsAndKind = getSymbolDisplayPartsDocumentationAndSymbolKind(symbol, sourceFile, getContainerNode(node), node);
+ return {
+ kind: displayPartsDocumentationsAndKind.symbolKind,
+ kindModifiers: getSymbolModifiers(symbol),
+ textSpan: ts.createTextSpan(node.getStart(), node.getWidth()),
+ displayParts: displayPartsDocumentationsAndKind.displayParts,
+ documentation: displayPartsDocumentationsAndKind.documentation
+ };
+ }
+ function createDefinitionInfo(node, symbolKind, symbolName, containerName) {
+ return {
+ fileName: node.getSourceFile().fileName,
+ textSpan: ts.createTextSpanFromBounds(node.getStart(), node.getEnd()),
+ kind: symbolKind,
+ name: symbolName,
+ containerKind: undefined,
+ containerName: containerName
+ };
+ }
+ function getDefinitionFromSymbol(symbol, node) {
+ var typeChecker = program.getTypeChecker();
+ var result = [];
+ var declarations = symbol.getDeclarations();
+ var symbolName = typeChecker.symbolToString(symbol); // Do not get scoped name, just the name of the symbol
+ var symbolKind = getSymbolKind(symbol, node);
+ var containerSymbol = symbol.parent;
+ var containerName = containerSymbol ? typeChecker.symbolToString(containerSymbol, node) : "";
+ if (!tryAddConstructSignature(symbol, node, symbolKind, symbolName, containerName, result) &&
+ !tryAddCallSignature(symbol, node, symbolKind, symbolName, containerName, result)) {
+ // Just add all the declarations.
+ ts.forEach(declarations, function (declaration) {
+ result.push(createDefinitionInfo(declaration, symbolKind, symbolName, containerName));
+ });
+ }
+ return result;
+ function tryAddConstructSignature(symbol, location, symbolKind, symbolName, containerName, result) {
+ // Applicable only if we are in a new expression, or we are on a constructor declaration
+ // and in either case the symbol has a construct signature definition, i.e. class
+ if (isNewExpressionTarget(location) || location.kind === 121 /* ConstructorKeyword */) {
+ if (symbol.flags & 32 /* Class */) {
+ // Find the first class-like declaration and try to get the construct signature.
+ for (var _i = 0, _a = symbol.getDeclarations(); _i < _a.length; _i++) {
+ var declaration = _a[_i];
+ if (ts.isClassLike(declaration)) {
+ return tryAddSignature(declaration.members,
+ /*selectConstructors*/ true, symbolKind, symbolName, containerName, result);
+ }
+ }
+ ts.Debug.fail("Expected declaration to have at least one class-like declaration");
+ }
+ }
+ return false;
+ }
+ function tryAddCallSignature(symbol, location, symbolKind, symbolName, containerName, result) {
+ if (isCallExpressionTarget(location) || isNewExpressionTarget(location) || isNameOfFunctionDeclaration(location)) {
+ return tryAddSignature(symbol.declarations, /*selectConstructors*/ false, symbolKind, symbolName, containerName, result);
+ }
+ return false;
+ }
+ function tryAddSignature(signatureDeclarations, selectConstructors, symbolKind, symbolName, containerName, result) {
+ var declarations = [];
+ var definition;
+ ts.forEach(signatureDeclarations, function (d) {
+ if ((selectConstructors && d.kind === 144 /* Constructor */) ||
+ (!selectConstructors && (d.kind === 213 /* FunctionDeclaration */ || d.kind === 143 /* MethodDeclaration */ || d.kind === 142 /* MethodSignature */))) {
+ declarations.push(d);
+ if (d.body)
+ definition = d;
+ }
+ });
+ if (definition) {
+ result.push(createDefinitionInfo(definition, symbolKind, symbolName, containerName));
+ return true;
+ }
+ else if (declarations.length) {
+ result.push(createDefinitionInfo(ts.lastOrUndefined(declarations), symbolKind, symbolName, containerName));
+ return true;
+ }
+ return false;
+ }
+ }
+ /// Goto definition
+ function getDefinitionAtPosition(fileName, position) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var node = ts.getTouchingPropertyName(sourceFile, position);
+ if (!node) {
+ return undefined;
+ }
+ // Labels
+ if (isJumpStatementTarget(node)) {
+ var labelName = node.text;
+ var label = getTargetLabel(node.parent, node.text);
+ return label ? [createDefinitionInfo(label, ScriptElementKind.label, labelName, /*containerName*/ undefined)] : undefined;
+ }
+ /// Triple slash reference comments
+ var comment = ts.forEach(sourceFile.referencedFiles, function (r) { return (r.pos <= position && position < r.end) ? r : undefined; });
+ if (comment) {
+ var referenceFile = ts.tryResolveScriptReference(program, sourceFile, comment);
+ if (referenceFile) {
+ return [{
+ fileName: referenceFile.fileName,
+ textSpan: ts.createTextSpanFromBounds(0, 0),
+ kind: ScriptElementKind.scriptElement,
+ name: comment.fileName,
+ containerName: undefined,
+ containerKind: undefined
+ }];
+ }
+ return undefined;
+ }
+ var typeChecker = program.getTypeChecker();
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ // Could not find a symbol e.g. node is string or number keyword,
+ // or the symbol was an internal symbol and does not have a declaration e.g. undefined symbol
+ if (!symbol) {
+ return undefined;
+ }
+ // If this is an alias, and the request came at the declaration location
+ // get the aliased symbol instead. This allows for goto def on an import e.g.
+ // import {A, B} from "mod";
+ // to jump to the implementation directly.
+ if (symbol.flags & 8388608 /* Alias */) {
+ var declaration = symbol.declarations[0];
+ if (node.kind === 69 /* Identifier */ && node.parent === declaration) {
+ symbol = typeChecker.getAliasedSymbol(symbol);
+ }
+ }
+ // Because name in short-hand property assignment has two different meanings: property name and property value,
+ // using go-to-definition at such position should go to the variable declaration of the property value rather than
+ // go to the declaration of the property name (in this case stay at the same position). However, if go-to-definition
+ // is performed at the location of property access, we would like to go to definition of the property in the short-hand
+ // assignment. This case and others are handled by the following code.
+ if (node.parent.kind === 246 /* ShorthandPropertyAssignment */) {
+ var shorthandSymbol = typeChecker.getShorthandAssignmentValueSymbol(symbol.valueDeclaration);
+ if (!shorthandSymbol) {
+ return [];
+ }
+ var shorthandDeclarations = shorthandSymbol.getDeclarations();
+ var shorthandSymbolKind = getSymbolKind(shorthandSymbol, node);
+ var shorthandSymbolName = typeChecker.symbolToString(shorthandSymbol);
+ var shorthandContainerName = typeChecker.symbolToString(symbol.parent, node);
+ return ts.map(shorthandDeclarations, function (declaration) { return createDefinitionInfo(declaration, shorthandSymbolKind, shorthandSymbolName, shorthandContainerName); });
+ }
+ return getDefinitionFromSymbol(symbol, node);
+ }
+ /// Goto type
+ function getTypeDefinitionAtPosition(fileName, position) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var node = ts.getTouchingPropertyName(sourceFile, position);
+ if (!node) {
+ return undefined;
+ }
+ var typeChecker = program.getTypeChecker();
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ if (!symbol) {
+ return undefined;
+ }
+ var type = typeChecker.getTypeOfSymbolAtLocation(symbol, node);
+ if (!type) {
+ return undefined;
+ }
+ if (type.flags & 16384 /* Union */) {
+ var result = [];
+ ts.forEach(type.types, function (t) {
+ if (t.symbol) {
+ ts.addRange(/*to*/ result, /*from*/ getDefinitionFromSymbol(t.symbol, node));
+ }
+ });
+ return result;
+ }
+ if (!type.symbol) {
+ return undefined;
+ }
+ return getDefinitionFromSymbol(type.symbol, node);
+ }
+ function getOccurrencesAtPosition(fileName, position) {
+ var results = getOccurrencesAtPositionCore(fileName, position);
+ if (results) {
+ var sourceFile = getCanonicalFileName(ts.normalizeSlashes(fileName));
+ // Get occurrences only supports reporting occurrences for the file queried. So
+ // filter down to that list.
+ results = ts.filter(results, function (r) { return getCanonicalFileName(ts.normalizeSlashes(r.fileName)) === sourceFile; });
+ }
+ return results;
+ }
+ function getDocumentHighlights(fileName, position, filesToSearch) {
+ synchronizeHostData();
+ filesToSearch = ts.map(filesToSearch, ts.normalizeSlashes);
+ var sourceFilesToSearch = ts.filter(program.getSourceFiles(), function (f) { return ts.contains(filesToSearch, f.fileName); });
+ var sourceFile = getValidSourceFile(fileName);
+ var node = ts.getTouchingWord(sourceFile, position);
+ if (!node) {
+ return undefined;
+ }
+ return getSemanticDocumentHighlights(node) || getSyntacticDocumentHighlights(node);
+ function getHighlightSpanForNode(node) {
+ var start = node.getStart();
+ var end = node.getEnd();
+ return {
+ fileName: sourceFile.fileName,
+ textSpan: ts.createTextSpanFromBounds(start, end),
+ kind: HighlightSpanKind.none
+ };
+ }
+ function getSemanticDocumentHighlights(node) {
+ if (node.kind === 69 /* Identifier */ ||
+ node.kind === 97 /* ThisKeyword */ ||
+ node.kind === 95 /* SuperKeyword */ ||
+ isLiteralNameOfPropertyDeclarationOrIndexAccess(node) ||
+ isNameOfExternalModuleImportOrDeclaration(node)) {
+ var referencedSymbols = getReferencedSymbolsForNode(node, sourceFilesToSearch, /*findInStrings:*/ false, /*findInComments:*/ false);
+ return convertReferencedSymbols(referencedSymbols);
+ }
+ return undefined;
+ function convertReferencedSymbols(referencedSymbols) {
+ if (!referencedSymbols) {
+ return undefined;
+ }
+ var fileNameToDocumentHighlights = {};
+ var result = [];
+ for (var _i = 0; _i < referencedSymbols.length; _i++) {
+ var referencedSymbol = referencedSymbols[_i];
+ for (var _a = 0, _b = referencedSymbol.references; _a < _b.length; _a++) {
+ var referenceEntry = _b[_a];
+ var fileName_1 = referenceEntry.fileName;
+ var documentHighlights = ts.getProperty(fileNameToDocumentHighlights, fileName_1);
+ if (!documentHighlights) {
+ documentHighlights = { fileName: fileName_1, highlightSpans: [] };
+ fileNameToDocumentHighlights[fileName_1] = documentHighlights;
+ result.push(documentHighlights);
+ }
+ documentHighlights.highlightSpans.push({
+ textSpan: referenceEntry.textSpan,
+ kind: referenceEntry.isWriteAccess ? HighlightSpanKind.writtenReference : HighlightSpanKind.reference
+ });
+ }
+ }
+ return result;
+ }
+ }
+ function getSyntacticDocumentHighlights(node) {
+ var fileName = sourceFile.fileName;
+ var highlightSpans = getHighlightSpans(node);
+ if (!highlightSpans || highlightSpans.length === 0) {
+ return undefined;
+ }
+ return [{ fileName: fileName, highlightSpans: highlightSpans }];
+ // returns true if 'node' is defined and has a matching 'kind'.
+ function hasKind(node, kind) {
+ return node !== undefined && node.kind === kind;
+ }
+ // Null-propagating 'parent' function.
+ function parent(node) {
+ return node && node.parent;
+ }
+ function getHighlightSpans(node) {
+ if (node) {
+ switch (node.kind) {
+ case 88 /* IfKeyword */:
+ case 80 /* ElseKeyword */:
+ if (hasKind(node.parent, 196 /* IfStatement */)) {
+ return getIfElseOccurrences(node.parent);
+ }
+ break;
+ case 94 /* ReturnKeyword */:
+ if (hasKind(node.parent, 204 /* ReturnStatement */)) {
+ return getReturnOccurrences(node.parent);
+ }
+ break;
+ case 98 /* ThrowKeyword */:
+ if (hasKind(node.parent, 208 /* ThrowStatement */)) {
+ return getThrowOccurrences(node.parent);
+ }
+ break;
+ case 72 /* CatchKeyword */:
+ if (hasKind(parent(parent(node)), 209 /* TryStatement */)) {
+ return getTryCatchFinallyOccurrences(node.parent.parent);
+ }
+ break;
+ case 100 /* TryKeyword */:
+ case 85 /* FinallyKeyword */:
+ if (hasKind(parent(node), 209 /* TryStatement */)) {
+ return getTryCatchFinallyOccurrences(node.parent);
+ }
+ break;
+ case 96 /* SwitchKeyword */:
+ if (hasKind(node.parent, 206 /* SwitchStatement */)) {
+ return getSwitchCaseDefaultOccurrences(node.parent);
+ }
+ break;
+ case 71 /* CaseKeyword */:
+ case 77 /* DefaultKeyword */:
+ if (hasKind(parent(parent(parent(node))), 206 /* SwitchStatement */)) {
+ return getSwitchCaseDefaultOccurrences(node.parent.parent.parent);
+ }
+ break;
+ case 70 /* BreakKeyword */:
+ case 75 /* ContinueKeyword */:
+ if (hasKind(node.parent, 203 /* BreakStatement */) || hasKind(node.parent, 202 /* ContinueStatement */)) {
+ return getBreakOrContinueStatementOccurrences(node.parent);
+ }
+ break;
+ case 86 /* ForKeyword */:
+ if (hasKind(node.parent, 199 /* ForStatement */) ||
+ hasKind(node.parent, 200 /* ForInStatement */) ||
+ hasKind(node.parent, 201 /* ForOfStatement */)) {
+ return getLoopBreakContinueOccurrences(node.parent);
+ }
+ break;
+ case 104 /* WhileKeyword */:
+ case 79 /* DoKeyword */:
+ if (hasKind(node.parent, 198 /* WhileStatement */) || hasKind(node.parent, 197 /* DoStatement */)) {
+ return getLoopBreakContinueOccurrences(node.parent);
+ }
+ break;
+ case 121 /* ConstructorKeyword */:
+ if (hasKind(node.parent, 144 /* Constructor */)) {
+ return getConstructorOccurrences(node.parent);
+ }
+ break;
+ case 123 /* GetKeyword */:
+ case 129 /* SetKeyword */:
+ if (hasKind(node.parent, 145 /* GetAccessor */) || hasKind(node.parent, 146 /* SetAccessor */)) {
+ return getGetAndSetOccurrences(node.parent);
+ }
+ break;
+ default:
+ if (ts.isModifier(node.kind) && node.parent &&
+ (ts.isDeclaration(node.parent) || node.parent.kind === 193 /* VariableStatement */)) {
+ return getModifierOccurrences(node.kind, node.parent);
+ }
+ }
+ }
+ return undefined;
+ }
+ /**
+ * Aggregates all throw-statements within this node *without* crossing
+ * into function boundaries and try-blocks with catch-clauses.
+ */
+ function aggregateOwnedThrowStatements(node) {
+ var statementAccumulator = [];
+ aggregate(node);
+ return statementAccumulator;
+ function aggregate(node) {
+ if (node.kind === 208 /* ThrowStatement */) {
+ statementAccumulator.push(node);
+ }
+ else if (node.kind === 209 /* TryStatement */) {
+ var tryStatement = node;
+ if (tryStatement.catchClause) {
+ aggregate(tryStatement.catchClause);
+ }
+ else {
+ // Exceptions thrown within a try block lacking a catch clause
+ // are "owned" in the current context.
+ aggregate(tryStatement.tryBlock);
+ }
+ if (tryStatement.finallyBlock) {
+ aggregate(tryStatement.finallyBlock);
+ }
+ }
+ else if (!ts.isFunctionLike(node)) {
+ ts.forEachChild(node, aggregate);
+ }
+ }
+ ;
+ }
+ /**
+ * For lack of a better name, this function takes a throw statement and returns the
+ * nearest ancestor that is a try-block (whose try statement has a catch clause),
+ * function-block, or source file.
+ */
+ function getThrowStatementOwner(throwStatement) {
+ var child = throwStatement;
+ while (child.parent) {
+ var parent_12 = child.parent;
+ if (ts.isFunctionBlock(parent_12) || parent_12.kind === 248 /* SourceFile */) {
+ return parent_12;
+ }
+ // A throw-statement is only owned by a try-statement if the try-statement has
+ // a catch clause, and if the throw-statement occurs within the try block.
+ if (parent_12.kind === 209 /* TryStatement */) {
+ var tryStatement = parent_12;
+ if (tryStatement.tryBlock === child && tryStatement.catchClause) {
+ return child;
+ }
+ }
+ child = parent_12;
+ }
+ return undefined;
+ }
+ function aggregateAllBreakAndContinueStatements(node) {
+ var statementAccumulator = [];
+ aggregate(node);
+ return statementAccumulator;
+ function aggregate(node) {
+ if (node.kind === 203 /* BreakStatement */ || node.kind === 202 /* ContinueStatement */) {
+ statementAccumulator.push(node);
+ }
+ else if (!ts.isFunctionLike(node)) {
+ ts.forEachChild(node, aggregate);
+ }
+ }
+ ;
+ }
+ function ownsBreakOrContinueStatement(owner, statement) {
+ var actualOwner = getBreakOrContinueOwner(statement);
+ return actualOwner && actualOwner === owner;
+ }
+ function getBreakOrContinueOwner(statement) {
+ for (var node_2 = statement.parent; node_2; node_2 = node_2.parent) {
+ switch (node_2.kind) {
+ case 206 /* SwitchStatement */:
+ if (statement.kind === 202 /* ContinueStatement */) {
+ continue;
+ }
+ // Fall through.
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 198 /* WhileStatement */:
+ case 197 /* DoStatement */:
+ if (!statement.label || isLabeledBy(node_2, statement.label.text)) {
+ return node_2;
+ }
+ break;
+ default:
+ // Don't cross function boundaries.
+ if (ts.isFunctionLike(node_2)) {
+ return undefined;
+ }
+ break;
+ }
+ }
+ return undefined;
+ }
+ function getModifierOccurrences(modifier, declaration) {
+ var container = declaration.parent;
+ // Make sure we only highlight the keyword when it makes sense to do so.
+ if (ts.isAccessibilityModifier(modifier)) {
+ if (!(container.kind === 214 /* ClassDeclaration */ ||
+ container.kind === 186 /* ClassExpression */ ||
+ (declaration.kind === 138 /* Parameter */ && hasKind(container, 144 /* Constructor */)))) {
+ return undefined;
+ }
+ }
+ else if (modifier === 113 /* StaticKeyword */) {
+ if (!(container.kind === 214 /* ClassDeclaration */ || container.kind === 186 /* ClassExpression */)) {
+ return undefined;
+ }
+ }
+ else if (modifier === 82 /* ExportKeyword */ || modifier === 122 /* DeclareKeyword */) {
+ if (!(container.kind === 219 /* ModuleBlock */ || container.kind === 248 /* SourceFile */)) {
+ return undefined;
+ }
+ }
+ else if (modifier === 115 /* AbstractKeyword */) {
+ if (!(container.kind === 214 /* ClassDeclaration */ || declaration.kind === 214 /* ClassDeclaration */)) {
+ return undefined;
+ }
+ }
+ else {
+ // unsupported modifier
+ return undefined;
+ }
+ var keywords = [];
+ var modifierFlag = getFlagFromModifier(modifier);
+ var nodes;
+ switch (container.kind) {
+ case 219 /* ModuleBlock */:
+ case 248 /* SourceFile */:
+ // Container is either a class declaration or the declaration is a classDeclaration
+ if (modifierFlag & 256 /* Abstract */) {
+ nodes = declaration.members.concat(declaration);
+ }
+ else {
+ nodes = container.statements;
+ }
+ break;
+ case 144 /* Constructor */:
+ nodes = container.parameters.concat(container.parent.members);
+ break;
+ case 214 /* ClassDeclaration */:
+ case 186 /* ClassExpression */:
+ nodes = container.members;
+ // If we're an accessibility modifier, we're in an instance member and should search
+ // the constructor's parameter list for instance members as well.
+ if (modifierFlag & 112 /* AccessibilityModifier */) {
+ var constructor = ts.forEach(container.members, function (member) {
+ return member.kind === 144 /* Constructor */ && member;
+ });
+ if (constructor) {
+ nodes = nodes.concat(constructor.parameters);
+ }
+ }
+ else if (modifierFlag & 256 /* Abstract */) {
+ nodes = nodes.concat(container);
+ }
+ break;
+ default:
+ ts.Debug.fail("Invalid container kind.");
+ }
+ ts.forEach(nodes, function (node) {
+ if (node.modifiers && node.flags & modifierFlag) {
+ ts.forEach(node.modifiers, function (child) { return pushKeywordIf(keywords, child, modifier); });
+ }
+ });
+ return ts.map(keywords, getHighlightSpanForNode);
+ function getFlagFromModifier(modifier) {
+ switch (modifier) {
+ case 112 /* PublicKeyword */:
+ return 16 /* Public */;
+ case 110 /* PrivateKeyword */:
+ return 32 /* Private */;
+ case 111 /* ProtectedKeyword */:
+ return 64 /* Protected */;
+ case 113 /* StaticKeyword */:
+ return 128 /* Static */;
+ case 82 /* ExportKeyword */:
+ return 1 /* Export */;
+ case 122 /* DeclareKeyword */:
+ return 2 /* Ambient */;
+ case 115 /* AbstractKeyword */:
+ return 256 /* Abstract */;
+ default:
+ ts.Debug.fail();
+ }
+ }
+ }
+ function pushKeywordIf(keywordList, token) {
+ var expected = [];
+ for (var _i = 2; _i < arguments.length; _i++) {
+ expected[_i - 2] = arguments[_i];
+ }
+ if (token && ts.contains(expected, token.kind)) {
+ keywordList.push(token);
+ return true;
+ }
+ return false;
+ }
+ function getGetAndSetOccurrences(accessorDeclaration) {
+ var keywords = [];
+ tryPushAccessorKeyword(accessorDeclaration.symbol, 145 /* GetAccessor */);
+ tryPushAccessorKeyword(accessorDeclaration.symbol, 146 /* SetAccessor */);
+ return ts.map(keywords, getHighlightSpanForNode);
+ function tryPushAccessorKeyword(accessorSymbol, accessorKind) {
+ var accessor = ts.getDeclarationOfKind(accessorSymbol, accessorKind);
+ if (accessor) {
+ ts.forEach(accessor.getChildren(), function (child) { return pushKeywordIf(keywords, child, 123 /* GetKeyword */, 129 /* SetKeyword */); });
+ }
+ }
+ }
+ function getConstructorOccurrences(constructorDeclaration) {
+ var declarations = constructorDeclaration.symbol.getDeclarations();
+ var keywords = [];
+ ts.forEach(declarations, function (declaration) {
+ ts.forEach(declaration.getChildren(), function (token) {
+ return pushKeywordIf(keywords, token, 121 /* ConstructorKeyword */);
+ });
+ });
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getLoopBreakContinueOccurrences(loopNode) {
+ var keywords = [];
+ if (pushKeywordIf(keywords, loopNode.getFirstToken(), 86 /* ForKeyword */, 104 /* WhileKeyword */, 79 /* DoKeyword */)) {
+ // If we succeeded and got a do-while loop, then start looking for a 'while' keyword.
+ if (loopNode.kind === 197 /* DoStatement */) {
+ var loopTokens = loopNode.getChildren();
+ for (var i = loopTokens.length - 1; i >= 0; i--) {
+ if (pushKeywordIf(keywords, loopTokens[i], 104 /* WhileKeyword */)) {
+ break;
+ }
+ }
+ }
+ }
+ var breaksAndContinues = aggregateAllBreakAndContinueStatements(loopNode.statement);
+ ts.forEach(breaksAndContinues, function (statement) {
+ if (ownsBreakOrContinueStatement(loopNode, statement)) {
+ pushKeywordIf(keywords, statement.getFirstToken(), 70 /* BreakKeyword */, 75 /* ContinueKeyword */);
+ }
+ });
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getBreakOrContinueStatementOccurrences(breakOrContinueStatement) {
+ var owner = getBreakOrContinueOwner(breakOrContinueStatement);
+ if (owner) {
+ switch (owner.kind) {
+ case 199 /* ForStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ case 197 /* DoStatement */:
+ case 198 /* WhileStatement */:
+ return getLoopBreakContinueOccurrences(owner);
+ case 206 /* SwitchStatement */:
+ return getSwitchCaseDefaultOccurrences(owner);
+ }
+ }
+ return undefined;
+ }
+ function getSwitchCaseDefaultOccurrences(switchStatement) {
+ var keywords = [];
+ pushKeywordIf(keywords, switchStatement.getFirstToken(), 96 /* SwitchKeyword */);
+ // Go through each clause in the switch statement, collecting the 'case'/'default' keywords.
+ ts.forEach(switchStatement.caseBlock.clauses, function (clause) {
+ pushKeywordIf(keywords, clause.getFirstToken(), 71 /* CaseKeyword */, 77 /* DefaultKeyword */);
+ var breaksAndContinues = aggregateAllBreakAndContinueStatements(clause);
+ ts.forEach(breaksAndContinues, function (statement) {
+ if (ownsBreakOrContinueStatement(switchStatement, statement)) {
+ pushKeywordIf(keywords, statement.getFirstToken(), 70 /* BreakKeyword */);
+ }
+ });
+ });
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getTryCatchFinallyOccurrences(tryStatement) {
+ var keywords = [];
+ pushKeywordIf(keywords, tryStatement.getFirstToken(), 100 /* TryKeyword */);
+ if (tryStatement.catchClause) {
+ pushKeywordIf(keywords, tryStatement.catchClause.getFirstToken(), 72 /* CatchKeyword */);
+ }
+ if (tryStatement.finallyBlock) {
+ var finallyKeyword = ts.findChildOfKind(tryStatement, 85 /* FinallyKeyword */, sourceFile);
+ pushKeywordIf(keywords, finallyKeyword, 85 /* FinallyKeyword */);
+ }
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getThrowOccurrences(throwStatement) {
+ var owner = getThrowStatementOwner(throwStatement);
+ if (!owner) {
+ return undefined;
+ }
+ var keywords = [];
+ ts.forEach(aggregateOwnedThrowStatements(owner), function (throwStatement) {
+ pushKeywordIf(keywords, throwStatement.getFirstToken(), 98 /* ThrowKeyword */);
+ });
+ // If the "owner" is a function, then we equate 'return' and 'throw' statements in their
+ // ability to "jump out" of the function, and include occurrences for both.
+ if (ts.isFunctionBlock(owner)) {
+ ts.forEachReturnStatement(owner, function (returnStatement) {
+ pushKeywordIf(keywords, returnStatement.getFirstToken(), 94 /* ReturnKeyword */);
+ });
+ }
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getReturnOccurrences(returnStatement) {
+ var func = ts.getContainingFunction(returnStatement);
+ // If we didn't find a containing function with a block body, bail out.
+ if (!(func && hasKind(func.body, 192 /* Block */))) {
+ return undefined;
+ }
+ var keywords = [];
+ ts.forEachReturnStatement(func.body, function (returnStatement) {
+ pushKeywordIf(keywords, returnStatement.getFirstToken(), 94 /* ReturnKeyword */);
+ });
+ // Include 'throw' statements that do not occur within a try block.
+ ts.forEach(aggregateOwnedThrowStatements(func.body), function (throwStatement) {
+ pushKeywordIf(keywords, throwStatement.getFirstToken(), 98 /* ThrowKeyword */);
+ });
+ return ts.map(keywords, getHighlightSpanForNode);
+ }
+ function getIfElseOccurrences(ifStatement) {
+ var keywords = [];
+ // Traverse upwards through all parent if-statements linked by their else-branches.
+ while (hasKind(ifStatement.parent, 196 /* IfStatement */) && ifStatement.parent.elseStatement === ifStatement) {
+ ifStatement = ifStatement.parent;
+ }
+ // Now traverse back down through the else branches, aggregating if/else keywords of if-statements.
+ while (ifStatement) {
+ var children = ifStatement.getChildren();
+ pushKeywordIf(keywords, children[0], 88 /* IfKeyword */);
+ // Generally the 'else' keyword is second-to-last, so we traverse backwards.
+ for (var i = children.length - 1; i >= 0; i--) {
+ if (pushKeywordIf(keywords, children[i], 80 /* ElseKeyword */)) {
+ break;
+ }
+ }
+ if (!hasKind(ifStatement.elseStatement, 196 /* IfStatement */)) {
+ break;
+ }
+ ifStatement = ifStatement.elseStatement;
+ }
+ var result = [];
+ // We'd like to highlight else/ifs together if they are only separated by whitespace
+ // (i.e. the keywords are separated by no comments, no newlines).
+ for (var i = 0; i < keywords.length; i++) {
+ if (keywords[i].kind === 80 /* ElseKeyword */ && i < keywords.length - 1) {
+ var elseKeyword = keywords[i];
+ var ifKeyword = keywords[i + 1]; // this *should* always be an 'if' keyword.
+ var shouldCombindElseAndIf = true;
+ // Avoid recalculating getStart() by iterating backwards.
+ for (var j = ifKeyword.getStart() - 1; j >= elseKeyword.end; j--) {
+ if (!ts.isWhiteSpace(sourceFile.text.charCodeAt(j))) {
+ shouldCombindElseAndIf = false;
+ break;
+ }
+ }
+ if (shouldCombindElseAndIf) {
+ result.push({
+ fileName: fileName,
+ textSpan: ts.createTextSpanFromBounds(elseKeyword.getStart(), ifKeyword.end),
+ kind: HighlightSpanKind.reference
+ });
+ i++; // skip the next keyword
+ continue;
+ }
+ }
+ // Ordinary case: just highlight the keyword.
+ result.push(getHighlightSpanForNode(keywords[i]));
+ }
+ return result;
+ }
+ }
+ }
+ /// References and Occurrences
+ function getOccurrencesAtPositionCore(fileName, position) {
+ synchronizeHostData();
+ return convertDocumentHighlights(getDocumentHighlights(fileName, position, [fileName]));
+ function convertDocumentHighlights(documentHighlights) {
+ if (!documentHighlights) {
+ return undefined;
+ }
+ var result = [];
+ for (var _i = 0; _i < documentHighlights.length; _i++) {
+ var entry = documentHighlights[_i];
+ for (var _a = 0, _b = entry.highlightSpans; _a < _b.length; _a++) {
+ var highlightSpan = _b[_a];
+ result.push({
+ fileName: entry.fileName,
+ textSpan: highlightSpan.textSpan,
+ isWriteAccess: highlightSpan.kind === HighlightSpanKind.writtenReference
+ });
+ }
+ }
+ return result;
+ }
+ }
+ function convertReferences(referenceSymbols) {
+ if (!referenceSymbols) {
+ return undefined;
+ }
+ var referenceEntries = [];
+ for (var _i = 0; _i < referenceSymbols.length; _i++) {
+ var referenceSymbol = referenceSymbols[_i];
+ ts.addRange(referenceEntries, referenceSymbol.references);
+ }
+ return referenceEntries;
+ }
+ function findRenameLocations(fileName, position, findInStrings, findInComments) {
+ var referencedSymbols = findReferencedSymbols(fileName, position, findInStrings, findInComments);
+ return convertReferences(referencedSymbols);
+ }
+ function getReferencesAtPosition(fileName, position) {
+ var referencedSymbols = findReferencedSymbols(fileName, position, /*findInStrings:*/ false, /*findInComments:*/ false);
+ return convertReferences(referencedSymbols);
+ }
+ function findReferences(fileName, position) {
+ var referencedSymbols = findReferencedSymbols(fileName, position, /*findInStrings:*/ false, /*findInComments:*/ false);
+ // Only include referenced symbols that have a valid definition.
+ return ts.filter(referencedSymbols, function (rs) { return !!rs.definition; });
+ }
+ function findReferencedSymbols(fileName, position, findInStrings, findInComments) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var node = ts.getTouchingPropertyName(sourceFile, position);
+ if (!node) {
+ return undefined;
+ }
+ if (node.kind !== 69 /* Identifier */ &&
+ // TODO (drosen): This should be enabled in a later release - currently breaks rename.
+ //node.kind !== SyntaxKind.ThisKeyword &&
+ //node.kind !== SyntaxKind.SuperKeyword &&
+ !isLiteralNameOfPropertyDeclarationOrIndexAccess(node) &&
+ !isNameOfExternalModuleImportOrDeclaration(node)) {
+ return undefined;
+ }
+ ts.Debug.assert(node.kind === 69 /* Identifier */ || node.kind === 8 /* NumericLiteral */ || node.kind === 9 /* StringLiteral */);
+ return getReferencedSymbolsForNode(node, program.getSourceFiles(), findInStrings, findInComments);
+ }
+ function getReferencedSymbolsForNode(node, sourceFiles, findInStrings, findInComments) {
+ var typeChecker = program.getTypeChecker();
+ // Labels
+ if (isLabelName(node)) {
+ if (isJumpStatementTarget(node)) {
+ var labelDefinition = getTargetLabel(node.parent, node.text);
+ // if we have a label definition, look within its statement for references, if not, then
+ // the label is undefined and we have no results..
+ return labelDefinition ? getLabelReferencesInNode(labelDefinition.parent, labelDefinition) : undefined;
+ }
+ else {
+ // it is a label definition and not a target, search within the parent labeledStatement
+ return getLabelReferencesInNode(node.parent, node);
+ }
+ }
+ if (node.kind === 97 /* ThisKeyword */) {
+ return getReferencesForThisKeyword(node, sourceFiles);
+ }
+ if (node.kind === 95 /* SuperKeyword */) {
+ return getReferencesForSuperKeyword(node);
+ }
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ // Could not find a symbol e.g. unknown identifier
+ if (!symbol) {
+ // Can't have references to something that we have no symbol for.
+ return undefined;
+ }
+ var declarations = symbol.declarations;
+ // The symbol was an internal symbol and does not have a declaration e.g. undefined symbol
+ if (!declarations || !declarations.length) {
+ return undefined;
+ }
+ var result;
+ // Compute the meaning from the location and the symbol it references
+ var searchMeaning = getIntersectingMeaningFromDeclarations(getMeaningFromLocation(node), declarations);
+ // Get the text to search for.
+ // Note: if this is an external module symbol, the name doesn't include quotes.
+ var declaredName = ts.stripQuotes(ts.getDeclaredName(typeChecker, symbol, node));
+ // Try to get the smallest valid scope that we can limit our search to;
+ // otherwise we'll need to search globally (i.e. include each file).
+ var scope = getSymbolScope(symbol);
+ // Maps from a symbol ID to the ReferencedSymbol entry in 'result'.
+ var symbolToIndex = [];
+ if (scope) {
+ result = [];
+ getReferencesInNode(scope, symbol, declaredName, node, searchMeaning, findInStrings, findInComments, result, symbolToIndex);
+ }
+ else {
+ var internedName = getInternedName(symbol, node, declarations);
+ for (var _i = 0; _i < sourceFiles.length; _i++) {
+ var sourceFile = sourceFiles[_i];
+ cancellationToken.throwIfCancellationRequested();
+ var nameTable = getNameTable(sourceFile);
+ if (ts.lookUp(nameTable, internedName)) {
+ result = result || [];
+ getReferencesInNode(sourceFile, symbol, declaredName, node, searchMeaning, findInStrings, findInComments, result, symbolToIndex);
+ }
+ }
+ }
+ return result;
+ function getDefinition(symbol) {
+ var info = getSymbolDisplayPartsDocumentationAndSymbolKind(symbol, node.getSourceFile(), getContainerNode(node), node);
+ var name = ts.map(info.displayParts, function (p) { return p.text; }).join("");
+ var declarations = symbol.declarations;
+ if (!declarations || declarations.length === 0) {
+ return undefined;
+ }
+ return {
+ containerKind: "",
+ containerName: "",
+ name: name,
+ kind: info.symbolKind,
+ fileName: declarations[0].getSourceFile().fileName,
+ textSpan: ts.createTextSpan(declarations[0].getStart(), 0)
+ };
+ }
+ function isImportOrExportSpecifierImportSymbol(symbol) {
+ return (symbol.flags & 8388608 /* Alias */) && ts.forEach(symbol.declarations, function (declaration) {
+ return declaration.kind === 226 /* ImportSpecifier */ || declaration.kind === 230 /* ExportSpecifier */;
+ });
+ }
+ function getInternedName(symbol, location, declarations) {
+ // If this is an export or import specifier it could have been renamed using the 'as' syntax.
+ // If so we want to search for whatever under the cursor.
+ if (ts.isImportOrExportSpecifierName(location)) {
+ return location.getText();
+ }
+ // Try to get the local symbol if we're dealing with an 'export default'
+ // since that symbol has the "true" name.
+ var localExportDefaultSymbol = ts.getLocalSymbolForExportDefault(symbol);
+ symbol = localExportDefaultSymbol || symbol;
+ return ts.stripQuotes(symbol.name);
+ }
+ /**
+ * Determines the smallest scope in which a symbol may have named references.
+ * Note that not every construct has been accounted for. This function can
+ * probably be improved.
+ *
+ * @returns undefined if the scope cannot be determined, implying that
+ * a reference to a symbol can occur anywhere.
+ */
+ function getSymbolScope(symbol) {
+ // If this is the symbol of a named function expression or named class expression,
+ // then named references are limited to its own scope.
+ var valueDeclaration = symbol.valueDeclaration;
+ if (valueDeclaration && (valueDeclaration.kind === 173 /* FunctionExpression */ || valueDeclaration.kind === 186 /* ClassExpression */)) {
+ return valueDeclaration;
+ }
+ // If this is private property or method, the scope is the containing class
+ if (symbol.flags & (4 /* Property */ | 8192 /* Method */)) {
+ var privateDeclaration = ts.forEach(symbol.getDeclarations(), function (d) { return (d.flags & 32 /* Private */) ? d : undefined; });
+ if (privateDeclaration) {
+ return ts.getAncestor(privateDeclaration, 214 /* ClassDeclaration */);
+ }
+ }
+ // If the symbol is an import we would like to find it if we are looking for what it imports.
+ // So consider it visibile outside its declaration scope.
+ if (symbol.flags & 8388608 /* Alias */) {
+ return undefined;
+ }
+ // if this symbol is visible from its parent container, e.g. exported, then bail out
+ // if symbol correspond to the union property - bail out
+ if (symbol.parent || (symbol.flags & 268435456 /* SyntheticProperty */)) {
+ return undefined;
+ }
+ var scope = undefined;
+ var declarations = symbol.getDeclarations();
+ if (declarations) {
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ var container = getContainerNode(declaration);
+ if (!container) {
+ return undefined;
+ }
+ if (scope && scope !== container) {
+ // Different declarations have different containers, bail out
+ return undefined;
+ }
+ if (container.kind === 248 /* SourceFile */ && !ts.isExternalModule(container)) {
+ // This is a global variable and not an external module, any declaration defined
+ // within this scope is visible outside the file
+ return undefined;
+ }
+ // The search scope is the container node
+ scope = container;
+ }
+ }
+ return scope;
+ }
+ function getPossibleSymbolReferencePositions(sourceFile, symbolName, start, end) {
+ var positions = [];
+ /// TODO: Cache symbol existence for files to save text search
+ // Also, need to make this work for unicode escapes.
+ // Be resilient in the face of a symbol with no name or zero length name
+ if (!symbolName || !symbolName.length) {
+ return positions;
+ }
+ var text = sourceFile.text;
+ var sourceLength = text.length;
+ var symbolNameLength = symbolName.length;
+ var position = text.indexOf(symbolName, start);
+ while (position >= 0) {
+ cancellationToken.throwIfCancellationRequested();
+ // If we are past the end, stop looking
+ if (position > end)
+ break;
+ // We found a match. Make sure it's not part of a larger word (i.e. the char
+ // before and after it have to be a non-identifier char).
+ var endPosition = position + symbolNameLength;
+ if ((position === 0 || !ts.isIdentifierPart(text.charCodeAt(position - 1), 2 /* Latest */)) &&
+ (endPosition === sourceLength || !ts.isIdentifierPart(text.charCodeAt(endPosition), 2 /* Latest */))) {
+ // Found a real match. Keep searching.
+ positions.push(position);
+ }
+ position = text.indexOf(symbolName, position + symbolNameLength + 1);
+ }
+ return positions;
+ }
+ function getLabelReferencesInNode(container, targetLabel) {
+ var references = [];
+ var sourceFile = container.getSourceFile();
+ var labelName = targetLabel.text;
+ var possiblePositions = getPossibleSymbolReferencePositions(sourceFile, labelName, container.getStart(), container.getEnd());
+ ts.forEach(possiblePositions, function (position) {
+ cancellationToken.throwIfCancellationRequested();
+ var node = ts.getTouchingWord(sourceFile, position);
+ if (!node || node.getWidth() !== labelName.length) {
+ return;
+ }
+ // Only pick labels that are either the target label, or have a target that is the target label
+ if (node === targetLabel ||
+ (isJumpStatementTarget(node) && getTargetLabel(node, labelName) === targetLabel)) {
+ references.push(getReferenceEntryFromNode(node));
+ }
+ });
+ var definition = {
+ containerKind: "",
+ containerName: "",
+ fileName: targetLabel.getSourceFile().fileName,
+ kind: ScriptElementKind.label,
+ name: labelName,
+ textSpan: ts.createTextSpanFromBounds(targetLabel.getStart(), targetLabel.getEnd())
+ };
+ return [{ definition: definition, references: references }];
+ }
+ function isValidReferencePosition(node, searchSymbolName) {
+ if (node) {
+ // Compare the length so we filter out strict superstrings of the symbol we are looking for
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ return node.getWidth() === searchSymbolName.length;
+ case 9 /* StringLiteral */:
+ if (isLiteralNameOfPropertyDeclarationOrIndexAccess(node) ||
+ isNameOfExternalModuleImportOrDeclaration(node)) {
+ // For string literals we have two additional chars for the quotes
+ return node.getWidth() === searchSymbolName.length + 2;
+ }
+ break;
+ case 8 /* NumericLiteral */:
+ if (isLiteralNameOfPropertyDeclarationOrIndexAccess(node)) {
+ return node.getWidth() === searchSymbolName.length;
+ }
+ break;
+ }
+ }
+ return false;
+ }
+ /** Search within node "container" for references for a search value, where the search value is defined as a
+ * tuple of(searchSymbol, searchText, searchLocation, and searchMeaning).
+ * searchLocation: a node where the search value
+ */
+ function getReferencesInNode(container, searchSymbol, searchText, searchLocation, searchMeaning, findInStrings, findInComments, result, symbolToIndex) {
+ var sourceFile = container.getSourceFile();
+ var tripleSlashDirectivePrefixRegex = /^\/\/\/\s*</;
+ var possiblePositions = getPossibleSymbolReferencePositions(sourceFile, searchText, container.getStart(), container.getEnd());
+ if (possiblePositions.length) {
+ // Build the set of symbols to search for, initially it has only the current symbol
+ var searchSymbols = populateSearchSymbolSet(searchSymbol, searchLocation);
+ ts.forEach(possiblePositions, function (position) {
+ cancellationToken.throwIfCancellationRequested();
+ var referenceLocation = ts.getTouchingPropertyName(sourceFile, position);
+ if (!isValidReferencePosition(referenceLocation, searchText)) {
+ // This wasn't the start of a token. Check to see if it might be a
+ // match in a comment or string if that's what the caller is asking
+ // for.
+ if ((findInStrings && ts.isInString(sourceFile, position)) ||
+ (findInComments && isInNonReferenceComment(sourceFile, position))) {
+ // In the case where we're looking inside comments/strings, we don't have
+ // an actual definition. So just use 'undefined' here. Features like
+ // 'Rename' won't care (as they ignore the definitions), and features like
+ // 'FindReferences' will just filter out these results.
+ result.push({
+ definition: undefined,
+ references: [{
+ fileName: sourceFile.fileName,
+ textSpan: ts.createTextSpan(position, searchText.length),
+ isWriteAccess: false
+ }]
+ });
+ }
+ return;
+ }
+ if (!(getMeaningFromLocation(referenceLocation) & searchMeaning)) {
+ return;
+ }
+ var referenceSymbol = typeChecker.getSymbolAtLocation(referenceLocation);
+ if (referenceSymbol) {
+ var referenceSymbolDeclaration = referenceSymbol.valueDeclaration;
+ var shorthandValueSymbol = typeChecker.getShorthandAssignmentValueSymbol(referenceSymbolDeclaration);
+ var relatedSymbol = getRelatedSymbol(searchSymbols, referenceSymbol, referenceLocation);
+ if (relatedSymbol) {
+ var referencedSymbol = getReferencedSymbol(relatedSymbol);
+ referencedSymbol.references.push(getReferenceEntryFromNode(referenceLocation));
+ }
+ else if (!(referenceSymbol.flags & 67108864 /* Transient */) && searchSymbols.indexOf(shorthandValueSymbol) >= 0) {
+ var referencedSymbol = getReferencedSymbol(shorthandValueSymbol);
+ referencedSymbol.references.push(getReferenceEntryFromNode(referenceSymbolDeclaration.name));
+ }
+ }
+ });
+ }
+ return;
+ function getReferencedSymbol(symbol) {
+ var symbolId = ts.getSymbolId(symbol);
+ var index = symbolToIndex[symbolId];
+ if (index === undefined) {
+ index = result.length;
+ symbolToIndex[symbolId] = index;
+ result.push({
+ definition: getDefinition(symbol),
+ references: []
+ });
+ }
+ return result[index];
+ }
+ function isInNonReferenceComment(sourceFile, position) {
+ return ts.isInCommentHelper(sourceFile, position, isNonReferenceComment);
+ function isNonReferenceComment(c) {
+ var commentText = sourceFile.text.substring(c.pos, c.end);
+ return !tripleSlashDirectivePrefixRegex.test(commentText);
+ }
+ }
+ }
+ function getReferencesForSuperKeyword(superKeyword) {
+ var searchSpaceNode = ts.getSuperContainer(superKeyword, /*includeFunctions*/ false);
+ if (!searchSpaceNode) {
+ return undefined;
+ }
+ // Whether 'super' occurs in a static context within a class.
+ var staticFlag = 128 /* Static */;
+ switch (searchSpaceNode.kind) {
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ staticFlag &= searchSpaceNode.flags;
+ searchSpaceNode = searchSpaceNode.parent; // re-assign to be the owning class
+ break;
+ default:
+ return undefined;
+ }
+ var references = [];
+ var sourceFile = searchSpaceNode.getSourceFile();
+ var possiblePositions = getPossibleSymbolReferencePositions(sourceFile, "super", searchSpaceNode.getStart(), searchSpaceNode.getEnd());
+ ts.forEach(possiblePositions, function (position) {
+ cancellationToken.throwIfCancellationRequested();
+ var node = ts.getTouchingWord(sourceFile, position);
+ if (!node || node.kind !== 95 /* SuperKeyword */) {
+ return;
+ }
+ var container = ts.getSuperContainer(node, /*includeFunctions*/ false);
+ // If we have a 'super' container, we must have an enclosing class.
+ // Now make sure the owning class is the same as the search-space
+ // and has the same static qualifier as the original 'super's owner.
+ if (container && (128 /* Static */ & container.flags) === staticFlag && container.parent.symbol === searchSpaceNode.symbol) {
+ references.push(getReferenceEntryFromNode(node));
+ }
+ });
+ var definition = getDefinition(searchSpaceNode.symbol);
+ return [{ definition: definition, references: references }];
+ }
+ function getReferencesForThisKeyword(thisOrSuperKeyword, sourceFiles) {
+ var searchSpaceNode = ts.getThisContainer(thisOrSuperKeyword, /* includeArrowFunctions */ false);
+ // Whether 'this' occurs in a static context within a class.
+ var staticFlag = 128 /* Static */;
+ switch (searchSpaceNode.kind) {
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (ts.isObjectLiteralMethod(searchSpaceNode)) {
+ break;
+ }
+ // fall through
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ staticFlag &= searchSpaceNode.flags;
+ searchSpaceNode = searchSpaceNode.parent; // re-assign to be the owning class
+ break;
+ case 248 /* SourceFile */:
+ if (ts.isExternalModule(searchSpaceNode)) {
+ return undefined;
+ }
+ // Fall through
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ break;
+ // Computed properties in classes are not handled here because references to this are illegal,
+ // so there is no point finding references to them.
+ default:
+ return undefined;
+ }
+ var references = [];
+ var possiblePositions;
+ if (searchSpaceNode.kind === 248 /* SourceFile */) {
+ ts.forEach(sourceFiles, function (sourceFile) {
+ possiblePositions = getPossibleSymbolReferencePositions(sourceFile, "this", sourceFile.getStart(), sourceFile.getEnd());
+ getThisReferencesInFile(sourceFile, sourceFile, possiblePositions, references);
+ });
+ }
+ else {
+ var sourceFile = searchSpaceNode.getSourceFile();
+ possiblePositions = getPossibleSymbolReferencePositions(sourceFile, "this", searchSpaceNode.getStart(), searchSpaceNode.getEnd());
+ getThisReferencesInFile(sourceFile, searchSpaceNode, possiblePositions, references);
+ }
+ return [{
+ definition: {
+ containerKind: "",
+ containerName: "",
+ fileName: node.getSourceFile().fileName,
+ kind: ScriptElementKind.variableElement,
+ name: "this",
+ textSpan: ts.createTextSpanFromBounds(node.getStart(), node.getEnd())
+ },
+ references: references
+ }];
+ function getThisReferencesInFile(sourceFile, searchSpaceNode, possiblePositions, result) {
+ ts.forEach(possiblePositions, function (position) {
+ cancellationToken.throwIfCancellationRequested();
+ var node = ts.getTouchingWord(sourceFile, position);
+ if (!node || node.kind !== 97 /* ThisKeyword */) {
+ return;
+ }
+ var container = ts.getThisContainer(node, /* includeArrowFunctions */ false);
+ switch (searchSpaceNode.kind) {
+ case 173 /* FunctionExpression */:
+ case 213 /* FunctionDeclaration */:
+ if (searchSpaceNode.symbol === container.symbol) {
+ result.push(getReferenceEntryFromNode(node));
+ }
+ break;
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ if (ts.isObjectLiteralMethod(searchSpaceNode) && searchSpaceNode.symbol === container.symbol) {
+ result.push(getReferenceEntryFromNode(node));
+ }
+ break;
+ case 186 /* ClassExpression */:
+ case 214 /* ClassDeclaration */:
+ // Make sure the container belongs to the same class
+ // and has the appropriate static modifier from the original container.
+ if (container.parent && searchSpaceNode.symbol === container.parent.symbol && (container.flags & 128 /* Static */) === staticFlag) {
+ result.push(getReferenceEntryFromNode(node));
+ }
+ break;
+ case 248 /* SourceFile */:
+ if (container.kind === 248 /* SourceFile */ && !ts.isExternalModule(container)) {
+ result.push(getReferenceEntryFromNode(node));
+ }
+ break;
+ }
+ });
+ }
+ }
+ function populateSearchSymbolSet(symbol, location) {
+ // The search set contains at least the current symbol
+ var result = [symbol];
+ // If the symbol is an alias, add what it alaises to the list
+ if (isImportOrExportSpecifierImportSymbol(symbol)) {
+ result.push(typeChecker.getAliasedSymbol(symbol));
+ }
+ // If the location is in a context sensitive location (i.e. in an object literal) try
+ // to get a contextual type for it, and add the property symbol from the contextual
+ // type to the search set
+ if (isNameOfPropertyAssignment(location)) {
+ ts.forEach(getPropertySymbolsFromContextualType(location), function (contextualSymbol) {
+ ts.addRange(result, typeChecker.getRootSymbols(contextualSymbol));
+ });
+ /* Because in short-hand property assignment, location has two meaning : property name and as value of the property
+ * When we do findAllReference at the position of the short-hand property assignment, we would want to have references to position of
+ * property name and variable declaration of the identifier.
+ * Like in below example, when querying for all references for an identifier 'name', of the property assignment, the language service
+ * should show both 'name' in 'obj' and 'name' in variable declaration
+ * let name = "Foo";
+ * let obj = { name };
+ * In order to do that, we will populate the search set with the value symbol of the identifier as a value of the property assignment
+ * so that when matching with potential reference symbol, both symbols from property declaration and variable declaration
+ * will be included correctly.
+ */
+ var shorthandValueSymbol = typeChecker.getShorthandAssignmentValueSymbol(location.parent);
+ if (shorthandValueSymbol) {
+ result.push(shorthandValueSymbol);
+ }
+ }
+ // If this is a union property, add all the symbols from all its source symbols in all unioned types.
+ // If the symbol is an instantiation from a another symbol (e.g. widened symbol) , add the root the list
+ ts.forEach(typeChecker.getRootSymbols(symbol), function (rootSymbol) {
+ if (rootSymbol !== symbol) {
+ result.push(rootSymbol);
+ }
+ // Add symbol of properties/methods of the same name in base classes and implemented interfaces definitions
+ if (rootSymbol.parent && rootSymbol.parent.flags & (32 /* Class */ | 64 /* Interface */)) {
+ getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result);
+ }
+ });
+ return result;
+ }
+ function getPropertySymbolsFromBaseTypes(symbol, propertyName, result) {
+ if (symbol && symbol.flags & (32 /* Class */ | 64 /* Interface */)) {
+ ts.forEach(symbol.getDeclarations(), function (declaration) {
+ if (declaration.kind === 214 /* ClassDeclaration */) {
+ getPropertySymbolFromTypeReference(ts.getClassExtendsHeritageClauseElement(declaration));
+ ts.forEach(ts.getClassImplementsHeritageClauseElements(declaration), getPropertySymbolFromTypeReference);
+ }
+ else if (declaration.kind === 215 /* InterfaceDeclaration */) {
+ ts.forEach(ts.getInterfaceBaseTypeNodes(declaration), getPropertySymbolFromTypeReference);
+ }
+ });
+ }
+ return;
+ function getPropertySymbolFromTypeReference(typeReference) {
+ if (typeReference) {
+ var type = typeChecker.getTypeAtLocation(typeReference);
+ if (type) {
+ var propertySymbol = typeChecker.getPropertyOfType(type, propertyName);
+ if (propertySymbol) {
+ result.push(propertySymbol);
+ }
+ // Visit the typeReference as well to see if it directly or indirectly use that property
+ getPropertySymbolsFromBaseTypes(type.symbol, propertyName, result);
+ }
+ }
+ }
+ }
+ function getRelatedSymbol(searchSymbols, referenceSymbol, referenceLocation) {
+ if (searchSymbols.indexOf(referenceSymbol) >= 0) {
+ return referenceSymbol;
+ }
+ // If the reference symbol is an alias, check if what it is aliasing is one of the search
+ // symbols.
+ if (isImportOrExportSpecifierImportSymbol(referenceSymbol)) {
+ var aliasedSymbol = typeChecker.getAliasedSymbol(referenceSymbol);
+ if (searchSymbols.indexOf(aliasedSymbol) >= 0) {
+ return aliasedSymbol;
+ }
+ }
+ // If the reference location is in an object literal, try to get the contextual type for the
+ // object literal, lookup the property symbol in the contextual type, and use this symbol to
+ // compare to our searchSymbol
+ if (isNameOfPropertyAssignment(referenceLocation)) {
+ return ts.forEach(getPropertySymbolsFromContextualType(referenceLocation), function (contextualSymbol) {
+ return ts.forEach(typeChecker.getRootSymbols(contextualSymbol), function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+ });
+ }
+ // Unwrap symbols to get to the root (e.g. transient symbols as a result of widening)
+ // Or a union property, use its underlying unioned symbols
+ return ts.forEach(typeChecker.getRootSymbols(referenceSymbol), function (rootSymbol) {
+ // if it is in the list, then we are done
+ if (searchSymbols.indexOf(rootSymbol) >= 0) {
+ return rootSymbol;
+ }
+ // Finally, try all properties with the same name in any type the containing type extended or implemented, and
+ // see if any is in the list
+ if (rootSymbol.parent && rootSymbol.parent.flags & (32 /* Class */ | 64 /* Interface */)) {
+ var result_3 = [];
+ getPropertySymbolsFromBaseTypes(rootSymbol.parent, rootSymbol.getName(), result_3);
+ return ts.forEach(result_3, function (s) { return searchSymbols.indexOf(s) >= 0 ? s : undefined; });
+ }
+ return undefined;
+ });
+ }
+ function getPropertySymbolsFromContextualType(node) {
+ if (isNameOfPropertyAssignment(node)) {
+ var objectLiteral = node.parent.parent;
+ var contextualType = typeChecker.getContextualType(objectLiteral);
+ var name_34 = node.text;
+ if (contextualType) {
+ if (contextualType.flags & 16384 /* Union */) {
+ // This is a union type, first see if the property we are looking for is a union property (i.e. exists in all types)
+ // if not, search the constituent types for the property
+ var unionProperty = contextualType.getProperty(name_34);
+ if (unionProperty) {
+ return [unionProperty];
+ }
+ else {
+ var result_4 = [];
+ ts.forEach(contextualType.types, function (t) {
+ var symbol = t.getProperty(name_34);
+ if (symbol) {
+ result_4.push(symbol);
+ }
+ });
+ return result_4;
+ }
+ }
+ else {
+ var symbol_1 = contextualType.getProperty(name_34);
+ if (symbol_1) {
+ return [symbol_1];
+ }
+ }
+ }
+ }
+ return undefined;
+ }
+ /** Given an initial searchMeaning, extracted from a location, widen the search scope based on the declarations
+ * of the corresponding symbol. e.g. if we are searching for "Foo" in value position, but "Foo" references a class
+ * then we need to widen the search to include type positions as well.
+ * On the contrary, if we are searching for "Bar" in type position and we trace bar to an interface, and an uninstantiated
+ * module, we want to keep the search limited to only types, as the two declarations (interface and uninstantiated module)
+ * do not intersect in any of the three spaces.
+ */
+ function getIntersectingMeaningFromDeclarations(meaning, declarations) {
+ if (declarations) {
+ var lastIterationMeaning;
+ do {
+ // The result is order-sensitive, for instance if initialMeaning === Namespace, and declarations = [class, instantiated module]
+ // we need to consider both as they initialMeaning intersects with the module in the namespace space, and the module
+ // intersects with the class in the value space.
+ // To achieve that we will keep iterating until the result stabilizes.
+ // Remember the last meaning
+ lastIterationMeaning = meaning;
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var declaration = declarations[_i];
+ var declarationMeaning = getMeaningFromDeclaration(declaration);
+ if (declarationMeaning & meaning) {
+ meaning |= declarationMeaning;
+ }
+ }
+ } while (meaning !== lastIterationMeaning);
+ }
+ return meaning;
+ }
+ }
+ function getReferenceEntryFromNode(node) {
+ var start = node.getStart();
+ var end = node.getEnd();
+ if (node.kind === 9 /* StringLiteral */) {
+ start += 1;
+ end -= 1;
+ }
+ return {
+ fileName: node.getSourceFile().fileName,
+ textSpan: ts.createTextSpanFromBounds(start, end),
+ isWriteAccess: isWriteAccess(node)
+ };
+ }
+ /** A node is considered a writeAccess iff it is a name of a declaration or a target of an assignment */
+ function isWriteAccess(node) {
+ if (node.kind === 69 /* Identifier */ && ts.isDeclarationName(node)) {
+ return true;
+ }
+ var parent = node.parent;
+ if (parent) {
+ if (parent.kind === 180 /* PostfixUnaryExpression */ || parent.kind === 179 /* PrefixUnaryExpression */) {
+ return true;
+ }
+ else if (parent.kind === 181 /* BinaryExpression */ && parent.left === node) {
+ var operator = parent.operatorToken.kind;
+ return 56 /* FirstAssignment */ <= operator && operator <= 68 /* LastAssignment */;
+ }
+ }
+ return false;
+ }
+ /// NavigateTo
+ function getNavigateToItems(searchValue, maxResultCount) {
+ synchronizeHostData();
+ return ts.NavigateTo.getNavigateToItems(program, cancellationToken, searchValue, maxResultCount);
+ }
+ function containErrors(diagnostics) {
+ return ts.forEach(diagnostics, function (diagnostic) { return diagnostic.category === ts.DiagnosticCategory.Error; });
+ }
+ function getEmitOutput(fileName) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var outputFiles = [];
+ function writeFile(fileName, data, writeByteOrderMark) {
+ outputFiles.push({
+ name: fileName,
+ writeByteOrderMark: writeByteOrderMark,
+ text: data
+ });
+ }
+ var emitOutput = program.emit(sourceFile, writeFile, cancellationToken);
+ return {
+ outputFiles: outputFiles,
+ emitSkipped: emitOutput.emitSkipped
+ };
+ }
+ function getMeaningFromDeclaration(node) {
+ switch (node.kind) {
+ case 138 /* Parameter */:
+ case 211 /* VariableDeclaration */:
+ case 163 /* BindingElement */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ case 245 /* PropertyAssignment */:
+ case 246 /* ShorthandPropertyAssignment */:
+ case 247 /* EnumMember */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 144 /* Constructor */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 213 /* FunctionDeclaration */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ case 244 /* CatchClause */:
+ return 1 /* Value */;
+ case 137 /* TypeParameter */:
+ case 215 /* InterfaceDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ case 155 /* TypeLiteral */:
+ return 2 /* Type */;
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ return 1 /* Value */ | 2 /* Type */;
+ case 218 /* ModuleDeclaration */:
+ if (node.name.kind === 9 /* StringLiteral */) {
+ return 4 /* Namespace */ | 1 /* Value */;
+ }
+ else if (ts.getModuleInstanceState(node) === 1 /* Instantiated */) {
+ return 4 /* Namespace */ | 1 /* Value */;
+ }
+ else {
+ return 4 /* Namespace */;
+ }
+ case 225 /* NamedImports */:
+ case 226 /* ImportSpecifier */:
+ case 221 /* ImportEqualsDeclaration */:
+ case 222 /* ImportDeclaration */:
+ case 227 /* ExportAssignment */:
+ case 228 /* ExportDeclaration */:
+ return 1 /* Value */ | 2 /* Type */ | 4 /* Namespace */;
+ // An external module can be a Value
+ case 248 /* SourceFile */:
+ return 4 /* Namespace */ | 1 /* Value */;
+ }
+ return 1 /* Value */ | 2 /* Type */ | 4 /* Namespace */;
+ ts.Debug.fail("Unknown declaration type");
+ }
+ function isTypeReference(node) {
+ if (ts.isRightSideOfQualifiedNameOrPropertyAccess(node)) {
+ node = node.parent;
+ }
+ return node.parent.kind === 151 /* TypeReference */ ||
+ (node.parent.kind === 188 /* ExpressionWithTypeArguments */ && !ts.isExpressionWithTypeArgumentsInClassExtendsClause(node.parent)) ||
+ node.kind === 97 /* ThisKeyword */ && !ts.isExpression(node);
+ }
+ function isNamespaceReference(node) {
+ return isQualifiedNameNamespaceReference(node) || isPropertyAccessNamespaceReference(node);
+ }
+ function isPropertyAccessNamespaceReference(node) {
+ var root = node;
+ var isLastClause = true;
+ if (root.parent.kind === 166 /* PropertyAccessExpression */) {
+ while (root.parent && root.parent.kind === 166 /* PropertyAccessExpression */) {
+ root = root.parent;
+ }
+ isLastClause = root.name === node;
+ }
+ if (!isLastClause && root.parent.kind === 188 /* ExpressionWithTypeArguments */ && root.parent.parent.kind === 243 /* HeritageClause */) {
+ var decl = root.parent.parent.parent;
+ return (decl.kind === 214 /* ClassDeclaration */ && root.parent.parent.token === 106 /* ImplementsKeyword */) ||
+ (decl.kind === 215 /* InterfaceDeclaration */ && root.parent.parent.token === 83 /* ExtendsKeyword */);
+ }
+ return false;
+ }
+ function isQualifiedNameNamespaceReference(node) {
+ var root = node;
+ var isLastClause = true;
+ if (root.parent.kind === 135 /* QualifiedName */) {
+ while (root.parent && root.parent.kind === 135 /* QualifiedName */) {
+ root = root.parent;
+ }
+ isLastClause = root.right === node;
+ }
+ return root.parent.kind === 151 /* TypeReference */ && !isLastClause;
+ }
+ function isInRightSideOfImport(node) {
+ while (node.parent.kind === 135 /* QualifiedName */) {
+ node = node.parent;
+ }
+ return ts.isInternalModuleImportEqualsDeclaration(node.parent) && node.parent.moduleReference === node;
+ }
+ function getMeaningFromRightHandSideOfImportEquals(node) {
+ ts.Debug.assert(node.kind === 69 /* Identifier */);
+ // import a = |b|; // Namespace
+ // import a = |b.c|; // Value, type, namespace
+ // import a = |b.c|.d; // Namespace
+ if (node.parent.kind === 135 /* QualifiedName */ &&
+ node.parent.right === node &&
+ node.parent.parent.kind === 221 /* ImportEqualsDeclaration */) {
+ return 1 /* Value */ | 2 /* Type */ | 4 /* Namespace */;
+ }
+ return 4 /* Namespace */;
+ }
+ function getMeaningFromLocation(node) {
+ if (node.parent.kind === 227 /* ExportAssignment */) {
+ return 1 /* Value */ | 2 /* Type */ | 4 /* Namespace */;
+ }
+ else if (isInRightSideOfImport(node)) {
+ return getMeaningFromRightHandSideOfImportEquals(node);
+ }
+ else if (ts.isDeclarationName(node)) {
+ return getMeaningFromDeclaration(node.parent);
+ }
+ else if (isTypeReference(node)) {
+ return 2 /* Type */;
+ }
+ else if (isNamespaceReference(node)) {
+ return 4 /* Namespace */;
+ }
+ else {
+ return 1 /* Value */;
+ }
+ }
+ // Signature help
+ /**
+ * This is a semantic operation.
+ */
+ function getSignatureHelpItems(fileName, position) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ return ts.SignatureHelp.getSignatureHelpItems(program, sourceFile, position, cancellationToken);
+ }
+ /// Syntactic features
+ function getSourceFile(fileName) {
+ return syntaxTreeCache.getCurrentSourceFile(fileName);
+ }
+ function getNameOrDottedNameSpan(fileName, startPos, endPos) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ // Get node at the location
+ var node = ts.getTouchingPropertyName(sourceFile, startPos);
+ if (!node) {
+ return;
+ }
+ switch (node.kind) {
+ case 166 /* PropertyAccessExpression */:
+ case 135 /* QualifiedName */:
+ case 9 /* StringLiteral */:
+ case 84 /* FalseKeyword */:
+ case 99 /* TrueKeyword */:
+ case 93 /* NullKeyword */:
+ case 95 /* SuperKeyword */:
+ case 97 /* ThisKeyword */:
+ case 69 /* Identifier */:
+ break;
+ // Cant create the text span
+ default:
+ return;
+ }
+ var nodeForStartPos = node;
+ while (true) {
+ if (isRightSideOfPropertyAccess(nodeForStartPos) || isRightSideOfQualifiedName(nodeForStartPos)) {
+ // If on the span is in right side of the the property or qualified name, return the span from the qualified name pos to end of this node
+ nodeForStartPos = nodeForStartPos.parent;
+ }
+ else if (isNameOfModuleDeclaration(nodeForStartPos)) {
+ // If this is name of a module declarations, check if this is right side of dotted module name
+ // If parent of the module declaration which is parent of this node is module declaration and its body is the module declaration that this node is name of
+ // Then this name is name from dotted module
+ if (nodeForStartPos.parent.parent.kind === 218 /* ModuleDeclaration */ &&
+ nodeForStartPos.parent.parent.body === nodeForStartPos.parent) {
+ // Use parent module declarations name for start pos
+ nodeForStartPos = nodeForStartPos.parent.parent.name;
+ }
+ else {
+ // We have to use this name for start pos
+ break;
+ }
+ }
+ else {
+ // Is not a member expression so we have found the node for start pos
+ break;
+ }
+ }
+ return ts.createTextSpanFromBounds(nodeForStartPos.getStart(), node.getEnd());
+ }
+ function getBreakpointStatementAtPosition(fileName, position) {
+ // doesn't use compiler - no need to synchronize with host
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ return ts.BreakpointResolver.spanInSourceFileAtLocation(sourceFile, position);
+ }
+ function getNavigationBarItems(fileName) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ return ts.NavigationBar.getNavigationBarItems(sourceFile);
+ }
+ function getSemanticClassifications(fileName, span) {
+ return convertClassifications(getEncodedSemanticClassifications(fileName, span));
+ }
+ function checkForClassificationCancellation(kind) {
+ // We don't want to actually call back into our host on every node to find out if we've
+ // been canceled. That would be an enormous amount of chattyness, along with the all
+ // the overhead of marshalling the data to/from the host. So instead we pick a few
+ // reasonable node kinds to bother checking on. These node kinds represent high level
+ // constructs that we would expect to see commonly, but just at a far less frequent
+ // interval.
+ //
+ // For example, in checker.ts (around 750k) we only have around 600 of these constructs.
+ // That means we're calling back into the host around every 1.2k of the file we process.
+ // Lib.d.ts has similar numbers.
+ switch (kind) {
+ case 218 /* ModuleDeclaration */:
+ case 214 /* ClassDeclaration */:
+ case 215 /* InterfaceDeclaration */:
+ case 213 /* FunctionDeclaration */:
+ cancellationToken.throwIfCancellationRequested();
+ }
+ }
+ function getEncodedSemanticClassifications(fileName, span) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var typeChecker = program.getTypeChecker();
+ var result = [];
+ var classifiableNames = program.getClassifiableNames();
+ processNode(sourceFile);
+ return { spans: result, endOfLineState: 0 /* None */ };
+ function pushClassification(start, length, type) {
+ result.push(start);
+ result.push(length);
+ result.push(type);
+ }
+ function classifySymbol(symbol, meaningAtPosition) {
+ var flags = symbol.getFlags();
+ if ((flags & 788448 /* Classifiable */) === 0 /* None */) {
+ return;
+ }
+ if (flags & 32 /* Class */) {
+ return 11 /* className */;
+ }
+ else if (flags & 384 /* Enum */) {
+ return 12 /* enumName */;
+ }
+ else if (flags & 524288 /* TypeAlias */) {
+ return 16 /* typeAliasName */;
+ }
+ else if (meaningAtPosition & 2 /* Type */) {
+ if (flags & 64 /* Interface */) {
+ return 13 /* interfaceName */;
+ }
+ else if (flags & 262144 /* TypeParameter */) {
+ return 15 /* typeParameterName */;
+ }
+ }
+ else if (flags & 1536 /* Module */) {
+ // Only classify a module as such if
+ // - It appears in a namespace context.
+ // - There exists a module declaration which actually impacts the value side.
+ if (meaningAtPosition & 4 /* Namespace */ ||
+ (meaningAtPosition & 1 /* Value */ && hasValueSideModule(symbol))) {
+ return 14 /* moduleName */;
+ }
+ }
+ return undefined;
+ /**
+ * Returns true if there exists a module that introduces entities on the value side.
+ */
+ function hasValueSideModule(symbol) {
+ return ts.forEach(symbol.declarations, function (declaration) {
+ return declaration.kind === 218 /* ModuleDeclaration */ &&
+ ts.getModuleInstanceState(declaration) === 1 /* Instantiated */;
+ });
+ }
+ }
+ function processNode(node) {
+ // Only walk into nodes that intersect the requested span.
+ if (node && ts.textSpanIntersectsWith(span, node.getFullStart(), node.getFullWidth())) {
+ var kind = node.kind;
+ checkForClassificationCancellation(kind);
+ if (kind === 69 /* Identifier */ && !ts.nodeIsMissing(node)) {
+ var identifier = node;
+ // Only bother calling into the typechecker if this is an identifier that
+ // could possibly resolve to a type name. This makes classification run
+ // in a third of the time it would normally take.
+ if (classifiableNames[identifier.text]) {
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ if (symbol) {
+ var type = classifySymbol(symbol, getMeaningFromLocation(node));
+ if (type) {
+ pushClassification(node.getStart(), node.getWidth(), type);
+ }
+ }
+ }
+ }
+ ts.forEachChild(node, processNode);
+ }
+ }
+ }
+ function getClassificationTypeName(type) {
+ switch (type) {
+ case 1 /* comment */: return ClassificationTypeNames.comment;
+ case 2 /* identifier */: return ClassificationTypeNames.identifier;
+ case 3 /* keyword */: return ClassificationTypeNames.keyword;
+ case 4 /* numericLiteral */: return ClassificationTypeNames.numericLiteral;
+ case 5 /* operator */: return ClassificationTypeNames.operator;
+ case 6 /* stringLiteral */: return ClassificationTypeNames.stringLiteral;
+ case 8 /* whiteSpace */: return ClassificationTypeNames.whiteSpace;
+ case 9 /* text */: return ClassificationTypeNames.text;
+ case 10 /* punctuation */: return ClassificationTypeNames.punctuation;
+ case 11 /* className */: return ClassificationTypeNames.className;
+ case 12 /* enumName */: return ClassificationTypeNames.enumName;
+ case 13 /* interfaceName */: return ClassificationTypeNames.interfaceName;
+ case 14 /* moduleName */: return ClassificationTypeNames.moduleName;
+ case 15 /* typeParameterName */: return ClassificationTypeNames.typeParameterName;
+ case 16 /* typeAliasName */: return ClassificationTypeNames.typeAliasName;
+ case 17 /* parameterName */: return ClassificationTypeNames.parameterName;
+ case 18 /* docCommentTagName */: return ClassificationTypeNames.docCommentTagName;
+ }
+ }
+ function convertClassifications(classifications) {
+ ts.Debug.assert(classifications.spans.length % 3 === 0);
+ var dense = classifications.spans;
+ var result = [];
+ for (var i = 0, n = dense.length; i < n; i += 3) {
+ result.push({
+ textSpan: ts.createTextSpan(dense[i], dense[i + 1]),
+ classificationType: getClassificationTypeName(dense[i + 2])
+ });
+ }
+ return result;
+ }
+ function getSyntacticClassifications(fileName, span) {
+ return convertClassifications(getEncodedSyntacticClassifications(fileName, span));
+ }
+ function getEncodedSyntacticClassifications(fileName, span) {
+ // doesn't use compiler - no need to synchronize with host
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ var spanStart = span.start;
+ var spanLength = span.length;
+ // Make a scanner we can get trivia from.
+ var triviaScanner = ts.createScanner(2 /* Latest */, /*skipTrivia:*/ false, sourceFile.languageVariant, sourceFile.text);
+ var mergeConflictScanner = ts.createScanner(2 /* Latest */, /*skipTrivia:*/ false, sourceFile.languageVariant, sourceFile.text);
+ var result = [];
+ processElement(sourceFile);
+ return { spans: result, endOfLineState: 0 /* None */ };
+ function pushClassification(start, length, type) {
+ result.push(start);
+ result.push(length);
+ result.push(type);
+ }
+ function classifyLeadingTriviaAndGetTokenStart(token) {
+ triviaScanner.setTextPos(token.pos);
+ while (true) {
+ var start = triviaScanner.getTextPos();
+ // only bother scanning if we have something that could be trivia.
+ if (!ts.couldStartTrivia(sourceFile.text, start)) {
+ return start;
+ }
+ var kind = triviaScanner.scan();
+ var end = triviaScanner.getTextPos();
+ var width = end - start;
+ // The moment we get something that isn't trivia, then stop processing.
+ if (!ts.isTrivia(kind)) {
+ return start;
+ }
+ // Don't bother with newlines/whitespace.
+ if (kind === 4 /* NewLineTrivia */ || kind === 5 /* WhitespaceTrivia */) {
+ continue;
+ }
+ // Only bother with the trivia if it at least intersects the span of interest.
+ if (ts.isComment(kind)) {
+ classifyComment(token, kind, start, width);
+ // Classifying a comment might cause us to reuse the trivia scanner
+ // (because of jsdoc comments). So after we classify the comment make
+ // sure we set the scanner position back to where it needs to be.
+ triviaScanner.setTextPos(end);
+ continue;
+ }
+ if (kind === 7 /* ConflictMarkerTrivia */) {
+ var text = sourceFile.text;
+ var ch = text.charCodeAt(start);
+ // for the <<<<<<< and >>>>>>> markers, we just add them in as comments
+ // in the classification stream.
+ if (ch === 60 /* lessThan */ || ch === 62 /* greaterThan */) {
+ pushClassification(start, width, 1 /* comment */);
+ continue;
+ }
+ // for the ======== add a comment for the first line, and then lex all
+ // subsequent lines up until the end of the conflict marker.
+ ts.Debug.assert(ch === 61 /* equals */);
+ classifyDisabledMergeCode(text, start, end);
+ }
+ }
+ }
+ function classifyComment(token, kind, start, width) {
+ if (kind === 3 /* MultiLineCommentTrivia */) {
+ // See if this is a doc comment. If so, we'll classify certain portions of it
+ // specially.
+ var docCommentAndDiagnostics = ts.parseIsolatedJSDocComment(sourceFile.text, start, width);
+ if (docCommentAndDiagnostics && docCommentAndDiagnostics.jsDocComment) {
+ docCommentAndDiagnostics.jsDocComment.parent = token;
+ classifyJSDocComment(docCommentAndDiagnostics.jsDocComment);
+ return;
+ }
+ }
+ // Simple comment. Just add as is.
+ pushCommentRange(start, width);
+ }
+ function pushCommentRange(start, width) {
+ pushClassification(start, width, 1 /* comment */);
+ }
+ function classifyJSDocComment(docComment) {
+ var pos = docComment.pos;
+ for (var _i = 0, _a = docComment.tags; _i < _a.length; _i++) {
+ var tag = _a[_i];
+ // As we walk through each tag, classify the portion of text from the end of
+ // the last tag (or the start of the entire doc comment) as 'comment'.
+ if (tag.pos !== pos) {
+ pushCommentRange(pos, tag.pos - pos);
+ }
+ pushClassification(tag.atToken.pos, tag.atToken.end - tag.atToken.pos, 10 /* punctuation */);
+ pushClassification(tag.tagName.pos, tag.tagName.end - tag.tagName.pos, 18 /* docCommentTagName */);
+ pos = tag.tagName.end;
+ switch (tag.kind) {
+ case 267 /* JSDocParameterTag */:
+ processJSDocParameterTag(tag);
+ break;
+ case 270 /* JSDocTemplateTag */:
+ processJSDocTemplateTag(tag);
+ break;
+ case 269 /* JSDocTypeTag */:
+ processElement(tag.typeExpression);
+ break;
+ case 268 /* JSDocReturnTag */:
+ processElement(tag.typeExpression);
+ break;
+ }
+ pos = tag.end;
+ }
+ if (pos !== docComment.end) {
+ pushCommentRange(pos, docComment.end - pos);
+ }
+ return;
+ function processJSDocParameterTag(tag) {
+ if (tag.preParameterName) {
+ pushCommentRange(pos, tag.preParameterName.pos - pos);
+ pushClassification(tag.preParameterName.pos, tag.preParameterName.end - tag.preParameterName.pos, 17 /* parameterName */);
+ pos = tag.preParameterName.end;
+ }
+ if (tag.typeExpression) {
+ pushCommentRange(pos, tag.typeExpression.pos - pos);
+ processElement(tag.typeExpression);
+ pos = tag.typeExpression.end;
+ }
+ if (tag.postParameterName) {
+ pushCommentRange(pos, tag.postParameterName.pos - pos);
+ pushClassification(tag.postParameterName.pos, tag.postParameterName.end - tag.postParameterName.pos, 17 /* parameterName */);
+ pos = tag.postParameterName.end;
+ }
+ }
+ }
+ function processJSDocTemplateTag(tag) {
+ for (var _i = 0, _a = tag.getChildren(); _i < _a.length; _i++) {
+ var child = _a[_i];
+ processElement(child);
+ }
+ }
+ function classifyDisabledMergeCode(text, start, end) {
+ // Classify the line that the ======= marker is on as a comment. Then just lex
+ // all further tokens and add them to the result.
+ for (var i = start; i < end; i++) {
+ if (ts.isLineBreak(text.charCodeAt(i))) {
+ break;
+ }
+ }
+ pushClassification(start, i - start, 1 /* comment */);
+ mergeConflictScanner.setTextPos(i);
+ while (mergeConflictScanner.getTextPos() < end) {
+ classifyDisabledCodeToken();
+ }
+ }
+ function classifyDisabledCodeToken() {
+ var start = mergeConflictScanner.getTextPos();
+ var tokenKind = mergeConflictScanner.scan();
+ var end = mergeConflictScanner.getTextPos();
+ var type = classifyTokenType(tokenKind);
+ if (type) {
+ pushClassification(start, end - start, type);
+ }
+ }
+ function classifyToken(token) {
+ if (ts.nodeIsMissing(token)) {
+ return;
+ }
+ var tokenStart = classifyLeadingTriviaAndGetTokenStart(token);
+ var tokenWidth = token.end - tokenStart;
+ ts.Debug.assert(tokenWidth >= 0);
+ if (tokenWidth > 0) {
+ var type = classifyTokenType(token.kind, token);
+ if (type) {
+ pushClassification(tokenStart, tokenWidth, type);
+ }
+ }
+ }
+ // for accurate classification, the actual token should be passed in. however, for
+ // cases like 'disabled merge code' classification, we just get the token kind and
+ // classify based on that instead.
+ function classifyTokenType(tokenKind, token) {
+ if (ts.isKeyword(tokenKind)) {
+ return 3 /* keyword */;
+ }
+ // Special case < and > If they appear in a generic context they are punctuation,
+ // not operators.
+ if (tokenKind === 25 /* LessThanToken */ || tokenKind === 27 /* GreaterThanToken */) {
+ // If the node owning the token has a type argument list or type parameter list, then
+ // we can effectively assume that a '<' and '>' belong to those lists.
+ if (token && ts.getTypeArgumentOrTypeParameterList(token.parent)) {
+ return 10 /* punctuation */;
+ }
+ }
+ if (ts.isPunctuation(tokenKind)) {
+ if (token) {
+ if (tokenKind === 56 /* EqualsToken */) {
+ // the '=' in a variable declaration is special cased here.
+ if (token.parent.kind === 211 /* VariableDeclaration */ ||
+ token.parent.kind === 141 /* PropertyDeclaration */ ||
+ token.parent.kind === 138 /* Parameter */) {
+ return 5 /* operator */;
+ }
+ }
+ if (token.parent.kind === 181 /* BinaryExpression */ ||
+ token.parent.kind === 179 /* PrefixUnaryExpression */ ||
+ token.parent.kind === 180 /* PostfixUnaryExpression */ ||
+ token.parent.kind === 182 /* ConditionalExpression */) {
+ return 5 /* operator */;
+ }
+ }
+ return 10 /* punctuation */;
+ }
+ else if (tokenKind === 8 /* NumericLiteral */) {
+ return 4 /* numericLiteral */;
+ }
+ else if (tokenKind === 9 /* StringLiteral */) {
+ return 6 /* stringLiteral */;
+ }
+ else if (tokenKind === 10 /* RegularExpressionLiteral */) {
+ // TODO: we should get another classification type for these literals.
+ return 6 /* stringLiteral */;
+ }
+ else if (ts.isTemplateLiteralKind(tokenKind)) {
+ // TODO (drosen): we should *also* get another classification type for these literals.
+ return 6 /* stringLiteral */;
+ }
+ else if (tokenKind === 69 /* Identifier */) {
+ if (token) {
+ switch (token.parent.kind) {
+ case 214 /* ClassDeclaration */:
+ if (token.parent.name === token) {
+ return 11 /* className */;
+ }
+ return;
+ case 137 /* TypeParameter */:
+ if (token.parent.name === token) {
+ return 15 /* typeParameterName */;
+ }
+ return;
+ case 215 /* InterfaceDeclaration */:
+ if (token.parent.name === token) {
+ return 13 /* interfaceName */;
+ }
+ return;
+ case 217 /* EnumDeclaration */:
+ if (token.parent.name === token) {
+ return 12 /* enumName */;
+ }
+ return;
+ case 218 /* ModuleDeclaration */:
+ if (token.parent.name === token) {
+ return 14 /* moduleName */;
+ }
+ return;
+ case 138 /* Parameter */:
+ if (token.parent.name === token) {
+ return 17 /* parameterName */;
+ }
+ return;
+ }
+ }
+ return 2 /* identifier */;
+ }
+ }
+ function processElement(element) {
+ if (!element) {
+ return;
+ }
+ // Ignore nodes that don't intersect the original span to classify.
+ if (ts.decodedTextSpanIntersectsWith(spanStart, spanLength, element.pos, element.getFullWidth())) {
+ checkForClassificationCancellation(element.kind);
+ var children = element.getChildren(sourceFile);
+ for (var i = 0, n = children.length; i < n; i++) {
+ var child = children[i];
+ if (ts.isToken(child)) {
+ classifyToken(child);
+ }
+ else {
+ // Recurse into our child nodes.
+ processElement(child);
+ }
+ }
+ }
+ }
+ }
+ function getOutliningSpans(fileName) {
+ // doesn't use compiler - no need to synchronize with host
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ return ts.OutliningElementsCollector.collectElements(sourceFile);
+ }
+ function getBraceMatchingAtPosition(fileName, position) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ var result = [];
+ var token = ts.getTouchingToken(sourceFile, position);
+ if (token.getStart(sourceFile) === position) {
+ var matchKind = getMatchingTokenKind(token);
+ // Ensure that there is a corresponding token to match ours.
+ if (matchKind) {
+ var parentElement = token.parent;
+ var childNodes = parentElement.getChildren(sourceFile);
+ for (var _i = 0; _i < childNodes.length; _i++) {
+ var current = childNodes[_i];
+ if (current.kind === matchKind) {
+ var range1 = ts.createTextSpan(token.getStart(sourceFile), token.getWidth(sourceFile));
+ var range2 = ts.createTextSpan(current.getStart(sourceFile), current.getWidth(sourceFile));
+ // We want to order the braces when we return the result.
+ if (range1.start < range2.start) {
+ result.push(range1, range2);
+ }
+ else {
+ result.push(range2, range1);
+ }
+ break;
+ }
+ }
+ }
+ }
+ return result;
+ function getMatchingTokenKind(token) {
+ switch (token.kind) {
+ case 15 /* OpenBraceToken */: return 16 /* CloseBraceToken */;
+ case 17 /* OpenParenToken */: return 18 /* CloseParenToken */;
+ case 19 /* OpenBracketToken */: return 20 /* CloseBracketToken */;
+ case 25 /* LessThanToken */: return 27 /* GreaterThanToken */;
+ case 16 /* CloseBraceToken */: return 15 /* OpenBraceToken */;
+ case 18 /* CloseParenToken */: return 17 /* OpenParenToken */;
+ case 20 /* CloseBracketToken */: return 19 /* OpenBracketToken */;
+ case 27 /* GreaterThanToken */: return 25 /* LessThanToken */;
+ }
+ return undefined;
+ }
+ }
+ function getIndentationAtPosition(fileName, position, editorOptions) {
+ var start = new Date().getTime();
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ log("getIndentationAtPosition: getCurrentSourceFile: " + (new Date().getTime() - start));
+ start = new Date().getTime();
+ var result = ts.formatting.SmartIndenter.getIndentation(position, sourceFile, editorOptions);
+ log("getIndentationAtPosition: computeIndentation : " + (new Date().getTime() - start));
+ return result;
+ }
+ function getFormattingEditsForRange(fileName, start, end, options) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ return ts.formatting.formatSelection(start, end, sourceFile, getRuleProvider(options), options);
+ }
+ function getFormattingEditsForDocument(fileName, options) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ return ts.formatting.formatDocument(sourceFile, getRuleProvider(options), options);
+ }
+ function getFormattingEditsAfterKeystroke(fileName, position, key, options) {
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ if (key === "}") {
+ return ts.formatting.formatOnClosingCurly(position, sourceFile, getRuleProvider(options), options);
+ }
+ else if (key === ";") {
+ return ts.formatting.formatOnSemicolon(position, sourceFile, getRuleProvider(options), options);
+ }
+ else if (key === "\n") {
+ return ts.formatting.formatOnEnter(position, sourceFile, getRuleProvider(options), options);
+ }
+ return [];
+ }
+ /**
+ * Checks if position points to a valid position to add JSDoc comments, and if so,
+ * returns the appropriate template. Otherwise returns an empty string.
+ * Valid positions are
+ * - outside of comments, statements, and expressions, and
+ * - preceding a:
+ * - function/constructor/method declaration
+ * - class declarations
+ * - variable statements
+ * - namespace declarations
+ *
+ * Hosts should ideally check that:
+ * - The line is all whitespace up to 'position' before performing the insertion.
+ * - If the keystroke sequence "/\*\*" induced the call, we also check that the next
+ * non-whitespace character is '*', which (approximately) indicates whether we added
+ * the second '*' to complete an existing (JSDoc) comment.
+ * @param fileName The file in which to perform the check.
+ * @param position The (character-indexed) position in the file where the check should
+ * be performed.
+ */
+ function getDocCommentTemplateAtPosition(fileName, position) {
+ var start = new Date().getTime();
+ var sourceFile = syntaxTreeCache.getCurrentSourceFile(fileName);
+ // Check if in a context where we don't want to perform any insertion
+ if (ts.isInString(sourceFile, position) || ts.isInComment(sourceFile, position) || ts.hasDocComment(sourceFile, position)) {
+ return undefined;
+ }
+ var tokenAtPos = ts.getTokenAtPosition(sourceFile, position);
+ var tokenStart = tokenAtPos.getStart();
+ if (!tokenAtPos || tokenStart < position) {
+ return undefined;
+ }
+ // TODO: add support for:
+ // - enums/enum members
+ // - interfaces
+ // - property declarations
+ // - potentially property assignments
+ var commentOwner;
+ findOwner: for (commentOwner = tokenAtPos; commentOwner; commentOwner = commentOwner.parent) {
+ switch (commentOwner.kind) {
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 144 /* Constructor */:
+ case 214 /* ClassDeclaration */:
+ case 193 /* VariableStatement */:
+ break findOwner;
+ case 248 /* SourceFile */:
+ return undefined;
+ case 218 /* ModuleDeclaration */:
+ // If in walking up the tree, we hit a a nested namespace declaration,
+ // then we must be somewhere within a dotted namespace name; however we don't
+ // want to give back a JSDoc template for the 'b' or 'c' in 'namespace a.b.c { }'.
+ if (commentOwner.parent.kind === 218 /* ModuleDeclaration */) {
+ return undefined;
+ }
+ break findOwner;
+ }
+ }
+ if (!commentOwner || commentOwner.getStart() < position) {
+ return undefined;
+ }
+ var parameters = getParametersForJsDocOwningNode(commentOwner);
+ var posLineAndChar = sourceFile.getLineAndCharacterOfPosition(position);
+ var lineStart = sourceFile.getLineStarts()[posLineAndChar.line];
+ var indentationStr = sourceFile.text.substr(lineStart, posLineAndChar.character);
+ // TODO: call a helper method instead once PR #4133 gets merged in.
+ var newLine = host.getNewLine ? host.getNewLine() : "\r\n";
+ var docParams = "";
+ for (var i = 0, numParams = parameters.length; i < numParams; i++) {
+ var currentName = parameters[i].name;
+ var paramName = currentName.kind === 69 /* Identifier */ ?
+ currentName.text :
+ "param" + i;
+ docParams += indentationStr + " * @param " + paramName + newLine;
+ }
+ // A doc comment consists of the following
+ // * The opening comment line
+ // * the first line (without a param) for the object's untagged info (this is also where the caret ends up)
+ // * the '@param'-tagged lines
+ // * TODO: other tags.
+ // * the closing comment line
+ // * if the caret was directly in front of the object, then we add an extra line and indentation.
+ var preamble = "/**" + newLine +
+ indentationStr + " * ";
+ var result = preamble + newLine +
+ docParams +
+ indentationStr + " */" +
+ (tokenStart === position ? newLine + indentationStr : "");
+ return { newText: result, caretOffset: preamble.length };
+ }
+ function getParametersForJsDocOwningNode(commentOwner) {
+ if (ts.isFunctionLike(commentOwner)) {
+ return commentOwner.parameters;
+ }
+ if (commentOwner.kind === 193 /* VariableStatement */) {
+ var varStatement = commentOwner;
+ var varDeclarations = varStatement.declarationList.declarations;
+ if (varDeclarations.length === 1 && varDeclarations[0].initializer) {
+ return getParametersFromRightHandSideOfAssignment(varDeclarations[0].initializer);
+ }
+ }
+ return emptyArray;
+ }
+ /**
+ * Digs into an an initializer or RHS operand of an assignment operation
+ * to get the parameters of an apt signature corresponding to a
+ * function expression or a class expression.
+ *
+ * @param rightHandSide the expression which may contain an appropriate set of parameters
+ * @returns the parameters of a signature found on the RHS if one exists; otherwise 'emptyArray'.
+ */
+ function getParametersFromRightHandSideOfAssignment(rightHandSide) {
+ while (rightHandSide.kind === 172 /* ParenthesizedExpression */) {
+ rightHandSide = rightHandSide.expression;
+ }
+ switch (rightHandSide.kind) {
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return rightHandSide.parameters;
+ case 186 /* ClassExpression */:
+ for (var _i = 0, _a = rightHandSide.members; _i < _a.length; _i++) {
+ var member = _a[_i];
+ if (member.kind === 144 /* Constructor */) {
+ return member.parameters;
+ }
+ }
+ break;
+ }
+ return emptyArray;
+ }
+ function getTodoComments(fileName, descriptors) {
+ // Note: while getting todo comments seems like a syntactic operation, we actually
+ // treat it as a semantic operation here. This is because we expect our host to call
+ // this on every single file. If we treat this syntactically, then that will cause
+ // us to populate and throw away the tree in our syntax tree cache for each file. By
+ // treating this as a semantic operation, we can access any tree without throwing
+ // anything away.
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ cancellationToken.throwIfCancellationRequested();
+ var fileContents = sourceFile.text;
+ var result = [];
+ if (descriptors.length > 0) {
+ var regExp = getTodoCommentsRegExp();
+ var matchArray;
+ while (matchArray = regExp.exec(fileContents)) {
+ cancellationToken.throwIfCancellationRequested();
+ // If we got a match, here is what the match array will look like. Say the source text is:
+ //
+ // " // hack 1"
+ //
+ // The result array with the regexp: will be:
+ //
+ // ["// hack 1", "// ", "hack 1", undefined, "hack"]
+ //
+ // Here are the relevant capture groups:
+ // 0) The full match for the entire regexp.
+ // 1) The preamble to the message portion.
+ // 2) The message portion.
+ // 3...N) The descriptor that was matched - by index. 'undefined' for each
+ // descriptor that didn't match. an actual value if it did match.
+ //
+ // i.e. 'undefined' in position 3 above means TODO(jason) didn't match.
+ // "hack" in position 4 means HACK did match.
+ var firstDescriptorCaptureIndex = 3;
+ ts.Debug.assert(matchArray.length === descriptors.length + firstDescriptorCaptureIndex);
+ var preamble = matchArray[1];
+ var matchPosition = matchArray.index + preamble.length;
+ // OK, we have found a match in the file. This is only an acceptable match if
+ // it is contained within a comment.
+ var token = ts.getTokenAtPosition(sourceFile, matchPosition);
+ if (!isInsideComment(sourceFile, token, matchPosition)) {
+ continue;
+ }
+ var descriptor = undefined;
+ for (var i = 0, n = descriptors.length; i < n; i++) {
+ if (matchArray[i + firstDescriptorCaptureIndex]) {
+ descriptor = descriptors[i];
+ }
+ }
+ ts.Debug.assert(descriptor !== undefined);
+ // We don't want to match something like 'TODOBY', so we make sure a non
+ // letter/digit follows the match.
+ if (isLetterOrDigit(fileContents.charCodeAt(matchPosition + descriptor.text.length))) {
+ continue;
+ }
+ var message = matchArray[2];
+ result.push({
+ descriptor: descriptor,
+ message: message,
+ position: matchPosition
+ });
+ }
+ }
+ return result;
+ function escapeRegExp(str) {
+ return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
+ }
+ function getTodoCommentsRegExp() {
+ // NOTE: ?: means 'non-capture group'. It allows us to have groups without having to
+ // filter them out later in the final result array.
+ // TODO comments can appear in one of the following forms:
+ //
+ // 1) // TODO or /////////// TODO
+ //
+ // 2) /* TODO or /********** TODO
+ //
+ // 3) /*
+ // * TODO
+ // */
+ //
+ // The following three regexps are used to match the start of the text up to the TODO
+ // comment portion.
+ var singleLineCommentStart = /(?:\/\/+\s*)/.source;
+ var multiLineCommentStart = /(?:\/\*+\s*)/.source;
+ var anyNumberOfSpacesAndAsterixesAtStartOfLine = /(?:^(?:\s|\*)*)/.source;
+ // Match any of the above three TODO comment start regexps.
+ // Note that the outermost group *is* a capture group. We want to capture the preamble
+ // so that we can determine the starting position of the TODO comment match.
+ var preamble = "(" + anyNumberOfSpacesAndAsterixesAtStartOfLine + "|" + singleLineCommentStart + "|" + multiLineCommentStart + ")";
+ // Takes the descriptors and forms a regexp that matches them as if they were literals.
+ // For example, if the descriptors are "TODO(jason)" and "HACK", then this will be:
+ //
+ // (?:(TODO\(jason\))|(HACK))
+ //
+ // Note that the outermost group is *not* a capture group, but the innermost groups
+ // *are* capture groups. By capturing the inner literals we can determine after
+ // matching which descriptor we are dealing with.
+ var literals = "(?:" + ts.map(descriptors, function (d) { return "(" + escapeRegExp(d.text) + ")"; }).join("|") + ")";
+ // After matching a descriptor literal, the following regexp matches the rest of the
+ // text up to the end of the line (or */).
+ var endOfLineOrEndOfComment = /(?:$|\*\/)/.source;
+ var messageRemainder = /(?:.*?)/.source;
+ // This is the portion of the match we'll return as part of the TODO comment result. We
+ // match the literal portion up to the end of the line or end of comment.
+ var messagePortion = "(" + literals + messageRemainder + ")";
+ var regExpString = preamble + messagePortion + endOfLineOrEndOfComment;
+ // The final regexp will look like this:
+ // /((?:\/\/+\s*)|(?:\/\*+\s*)|(?:^(?:\s|\*)*))((?:(TODO\(jason\))|(HACK))(?:.*?))(?:$|\*\/)/gim
+ // The flags of the regexp are important here.
+ // 'g' is so that we are doing a global search and can find matches several times
+ // in the input.
+ //
+ // 'i' is for case insensitivity (We do this to match C# TODO comment code).
+ //
+ // 'm' is so we can find matches in a multi-line input.
+ return new RegExp(regExpString, "gim");
+ }
+ function isLetterOrDigit(char) {
+ return (char >= 97 /* a */ && char <= 122 /* z */) ||
+ (char >= 65 /* A */ && char <= 90 /* Z */) ||
+ (char >= 48 /* _0 */ && char <= 57 /* _9 */);
+ }
+ }
+ function getRenameInfo(fileName, position) {
+ synchronizeHostData();
+ var sourceFile = getValidSourceFile(fileName);
+ var typeChecker = program.getTypeChecker();
+ var node = ts.getTouchingWord(sourceFile, position);
+ // Can only rename an identifier.
+ if (node && node.kind === 69 /* Identifier */) {
+ var symbol = typeChecker.getSymbolAtLocation(node);
+ // Only allow a symbol to be renamed if it actually has at least one declaration.
+ if (symbol) {
+ var declarations = symbol.getDeclarations();
+ if (declarations && declarations.length > 0) {
+ // Disallow rename for elements that are defined in the standard TypeScript library.
+ var defaultLibFileName = host.getDefaultLibFileName(host.getCompilationSettings());
+ if (defaultLibFileName) {
+ for (var _i = 0; _i < declarations.length; _i++) {
+ var current = declarations[_i];
+ var sourceFile_2 = current.getSourceFile();
+ var canonicalName = getCanonicalFileName(ts.normalizePath(sourceFile_2.fileName));
+ if (sourceFile_2 && getCanonicalFileName(ts.normalizePath(sourceFile_2.fileName)) === getCanonicalFileName(ts.normalizePath(defaultLibFileName))) {
+ return getRenameInfoError(ts.getLocaleSpecificMessage(ts.Diagnostics.You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library.key));
+ }
+ }
+ }
+ var displayName = ts.stripQuotes(ts.getDeclaredName(typeChecker, symbol, node));
+ var kind = getSymbolKind(symbol, node);
+ if (kind) {
+ return {
+ canRename: true,
+ localizedErrorMessage: undefined,
+ displayName: displayName,
+ fullDisplayName: typeChecker.getFullyQualifiedName(symbol),
+ kind: kind,
+ kindModifiers: getSymbolModifiers(symbol),
+ triggerSpan: ts.createTextSpan(node.getStart(), node.getWidth())
+ };
+ }
+ }
+ }
+ }
+ return getRenameInfoError(ts.getLocaleSpecificMessage(ts.Diagnostics.You_cannot_rename_this_element.key));
+ function getRenameInfoError(localizedErrorMessage) {
+ return {
+ canRename: false,
+ localizedErrorMessage: localizedErrorMessage,
+ displayName: undefined,
+ fullDisplayName: undefined,
+ kind: undefined,
+ kindModifiers: undefined,
+ triggerSpan: undefined
+ };
+ }
+ }
+ return {
+ dispose: dispose,
+ cleanupSemanticCache: cleanupSemanticCache,
+ getSyntacticDiagnostics: getSyntacticDiagnostics,
+ getSemanticDiagnostics: getSemanticDiagnostics,
+ getCompilerOptionsDiagnostics: getCompilerOptionsDiagnostics,
+ getSyntacticClassifications: getSyntacticClassifications,
+ getSemanticClassifications: getSemanticClassifications,
+ getEncodedSyntacticClassifications: getEncodedSyntacticClassifications,
+ getEncodedSemanticClassifications: getEncodedSemanticClassifications,
+ getCompletionsAtPosition: getCompletionsAtPosition,
+ getCompletionEntryDetails: getCompletionEntryDetails,
+ getSignatureHelpItems: getSignatureHelpItems,
+ getQuickInfoAtPosition: getQuickInfoAtPosition,
+ getDefinitionAtPosition: getDefinitionAtPosition,
+ getTypeDefinitionAtPosition: getTypeDefinitionAtPosition,
+ getReferencesAtPosition: getReferencesAtPosition,
+ findReferences: findReferences,
+ getOccurrencesAtPosition: getOccurrencesAtPosition,
+ getDocumentHighlights: getDocumentHighlights,
+ getNameOrDottedNameSpan: getNameOrDottedNameSpan,
+ getBreakpointStatementAtPosition: getBreakpointStatementAtPosition,
+ getNavigateToItems: getNavigateToItems,
+ getRenameInfo: getRenameInfo,
+ findRenameLocations: findRenameLocations,
+ getNavigationBarItems: getNavigationBarItems,
+ getOutliningSpans: getOutliningSpans,
+ getTodoComments: getTodoComments,
+ getBraceMatchingAtPosition: getBraceMatchingAtPosition,
+ getIndentationAtPosition: getIndentationAtPosition,
+ getFormattingEditsForRange: getFormattingEditsForRange,
+ getFormattingEditsForDocument: getFormattingEditsForDocument,
+ getFormattingEditsAfterKeystroke: getFormattingEditsAfterKeystroke,
+ getDocCommentTemplateAtPosition: getDocCommentTemplateAtPosition,
+ getEmitOutput: getEmitOutput,
+ getSourceFile: getSourceFile,
+ getProgram: getProgram
+ };
+ }
+ ts.createLanguageService = createLanguageService;
+ /* @internal */
+ function getNameTable(sourceFile) {
+ if (!sourceFile.nameTable) {
+ initializeNameTable(sourceFile);
+ }
+ return sourceFile.nameTable;
+ }
+ ts.getNameTable = getNameTable;
+ function initializeNameTable(sourceFile) {
+ var nameTable = {};
+ walk(sourceFile);
+ sourceFile.nameTable = nameTable;
+ function walk(node) {
+ switch (node.kind) {
+ case 69 /* Identifier */:
+ nameTable[node.text] = node.text;
+ break;
+ case 9 /* StringLiteral */:
+ case 8 /* NumericLiteral */:
+ // We want to store any numbers/strings if they were a name that could be
+ // related to a declaration. So, if we have 'import x = require("something")'
+ // then we want 'something' to be in the name table. Similarly, if we have
+ // "a['propname']" then we want to store "propname" in the name table.
+ if (ts.isDeclarationName(node) ||
+ node.parent.kind === 232 /* ExternalModuleReference */ ||
+ isArgumentOfElementAccessExpression(node)) {
+ nameTable[node.text] = node.text;
+ }
+ break;
+ default:
+ ts.forEachChild(node, walk);
+ }
+ }
+ }
+ function isArgumentOfElementAccessExpression(node) {
+ return node &&
+ node.parent &&
+ node.parent.kind === 167 /* ElementAccessExpression */ &&
+ node.parent.argumentExpression === node;
+ }
+ /// Classifier
+ function createClassifier() {
+ var scanner = ts.createScanner(2 /* Latest */, /*skipTrivia*/ false);
+ /// We do not have a full parser support to know when we should parse a regex or not
+ /// If we consider every slash token to be a regex, we could be missing cases like "1/2/3", where
+ /// we have a series of divide operator. this list allows us to be more accurate by ruling out
+ /// locations where a regexp cannot exist.
+ var noRegexTable = [];
+ noRegexTable[69 /* Identifier */] = true;
+ noRegexTable[9 /* StringLiteral */] = true;
+ noRegexTable[8 /* NumericLiteral */] = true;
+ noRegexTable[10 /* RegularExpressionLiteral */] = true;
+ noRegexTable[97 /* ThisKeyword */] = true;
+ noRegexTable[41 /* PlusPlusToken */] = true;
+ noRegexTable[42 /* MinusMinusToken */] = true;
+ noRegexTable[18 /* CloseParenToken */] = true;
+ noRegexTable[20 /* CloseBracketToken */] = true;
+ noRegexTable[16 /* CloseBraceToken */] = true;
+ noRegexTable[99 /* TrueKeyword */] = true;
+ noRegexTable[84 /* FalseKeyword */] = true;
+ // Just a stack of TemplateHeads and OpenCurlyBraces, used to perform rudimentary (inexact)
+ // classification on template strings. Because of the context free nature of templates,
+ // the only precise way to classify a template portion would be by propagating the stack across
+ // lines, just as we do with the end-of-line state. However, this is a burden for implementers,
+ // and the behavior is entirely subsumed by the syntactic classifier anyway, so we instead
+ // flatten any nesting when the template stack is non-empty and encode it in the end-of-line state.
+ // Situations in which this fails are
+ // 1) When template strings are nested across different lines:
+ // `hello ${ `world
+ // ` }`
+ //
+ // Where on the second line, you will get the closing of a template,
+ // a closing curly, and a new template.
+ //
+ // 2) When substitution expressions have curly braces and the curly brace falls on the next line:
+ // `hello ${ () => {
+ // return "world" } } `
+ //
+ // Where on the second line, you will get the 'return' keyword,
+ // a string literal, and a template end consisting of '} } `'.
+ var templateStack = [];
+ /** Returns true if 'keyword2' can legally follow 'keyword1' in any language construct. */
+ function canFollow(keyword1, keyword2) {
+ if (ts.isAccessibilityModifier(keyword1)) {
+ if (keyword2 === 123 /* GetKeyword */ ||
+ keyword2 === 129 /* SetKeyword */ ||
+ keyword2 === 121 /* ConstructorKeyword */ ||
+ keyword2 === 113 /* StaticKeyword */) {
+ // Allow things like "public get", "public constructor" and "public static".
+ // These are all legal.
+ return true;
+ }
+ // Any other keyword following "public" is actually an identifier an not a real
+ // keyword.
+ return false;
+ }
+ // Assume any other keyword combination is legal. This can be refined in the future
+ // if there are more cases we want the classifier to be better at.
+ return true;
+ }
+ function convertClassifications(classifications, text) {
+ var entries = [];
+ var dense = classifications.spans;
+ var lastEnd = 0;
+ for (var i = 0, n = dense.length; i < n; i += 3) {
+ var start = dense[i];
+ var length_3 = dense[i + 1];
+ var type = dense[i + 2];
+ // Make a whitespace entry between the last item and this one.
+ if (lastEnd >= 0) {
+ var whitespaceLength_1 = start - lastEnd;
+ if (whitespaceLength_1 > 0) {
+ entries.push({ length: whitespaceLength_1, classification: TokenClass.Whitespace });
+ }
+ }
+ entries.push({ length: length_3, classification: convertClassification(type) });
+ lastEnd = start + length_3;
+ }
+ var whitespaceLength = text.length - lastEnd;
+ if (whitespaceLength > 0) {
+ entries.push({ length: whitespaceLength, classification: TokenClass.Whitespace });
+ }
+ return { entries: entries, finalLexState: classifications.endOfLineState };
+ }
+ function convertClassification(type) {
+ switch (type) {
+ case 1 /* comment */: return TokenClass.Comment;
+ case 3 /* keyword */: return TokenClass.Keyword;
+ case 4 /* numericLiteral */: return TokenClass.NumberLiteral;
+ case 5 /* operator */: return TokenClass.Operator;
+ case 6 /* stringLiteral */: return TokenClass.StringLiteral;
+ case 8 /* whiteSpace */: return TokenClass.Whitespace;
+ case 10 /* punctuation */: return TokenClass.Punctuation;
+ case 2 /* identifier */:
+ case 11 /* className */:
+ case 12 /* enumName */:
+ case 13 /* interfaceName */:
+ case 14 /* moduleName */:
+ case 15 /* typeParameterName */:
+ case 16 /* typeAliasName */:
+ case 9 /* text */:
+ case 17 /* parameterName */:
+ default:
+ return TokenClass.Identifier;
+ }
+ }
+ function getClassificationsForLine(text, lexState, syntacticClassifierAbsent) {
+ return convertClassifications(getEncodedLexicalClassifications(text, lexState, syntacticClassifierAbsent), text);
+ }
+ // If there is a syntactic classifier ('syntacticClassifierAbsent' is false),
+ // we will be more conservative in order to avoid conflicting with the syntactic classifier.
+ function getEncodedLexicalClassifications(text, lexState, syntacticClassifierAbsent) {
+ var offset = 0;
+ var token = 0 /* Unknown */;
+ var lastNonTriviaToken = 0 /* Unknown */;
+ // Empty out the template stack for reuse.
+ while (templateStack.length > 0) {
+ templateStack.pop();
+ }
+ // If we're in a string literal, then prepend: "\
+ // (and a newline). That way when we lex we'll think we're still in a string literal.
+ //
+ // If we're in a multiline comment, then prepend: /*
+ // (and a newline). That way when we lex we'll think we're still in a multiline comment.
+ switch (lexState) {
+ case 3 /* InDoubleQuoteStringLiteral */:
+ text = '"\\\n' + text;
+ offset = 3;
+ break;
+ case 2 /* InSingleQuoteStringLiteral */:
+ text = "'\\\n" + text;
+ offset = 3;
+ break;
+ case 1 /* InMultiLineCommentTrivia */:
+ text = "/*\n" + text;
+ offset = 3;
+ break;
+ case 4 /* InTemplateHeadOrNoSubstitutionTemplate */:
+ text = "`\n" + text;
+ offset = 2;
+ break;
+ case 5 /* InTemplateMiddleOrTail */:
+ text = "}\n" + text;
+ offset = 2;
+ // fallthrough
+ case 6 /* InTemplateSubstitutionPosition */:
+ templateStack.push(12 /* TemplateHead */);
+ break;
+ }
+ scanner.setText(text);
+ var result = {
+ endOfLineState: 0 /* None */,
+ spans: []
+ };
+ // We can run into an unfortunate interaction between the lexical and syntactic classifier
+ // when the user is typing something generic. Consider the case where the user types:
+ //
+ // Foo<number
+ //
+ // From the lexical classifier's perspective, 'number' is a keyword, and so the word will
+ // be classified as such. However, from the syntactic classifier's tree-based perspective
+ // this is simply an expression with the identifier 'number' on the RHS of the less than
+ // token. So the classification will go back to being an identifier. The moment the user
+ // types again, number will become a keyword, then an identifier, etc. etc.
+ //
+ // To try to avoid this problem, we avoid classifying contextual keywords as keywords
+ // when the user is potentially typing something generic. We just can't do a good enough
+ // job at the lexical level, and so well leave it up to the syntactic classifier to make
+ // the determination.
+ //
+ // In order to determine if the user is potentially typing something generic, we use a
+ // weak heuristic where we track < and > tokens. It's a weak heuristic, but should
+ // work well enough in practice.
+ var angleBracketStack = 0;
+ do {
+ token = scanner.scan();
+ if (!ts.isTrivia(token)) {
+ if ((token === 39 /* SlashToken */ || token === 61 /* SlashEqualsToken */) && !noRegexTable[lastNonTriviaToken]) {
+ if (scanner.reScanSlashToken() === 10 /* RegularExpressionLiteral */) {
+ token = 10 /* RegularExpressionLiteral */;
+ }
+ }
+ else if (lastNonTriviaToken === 21 /* DotToken */ && isKeyword(token)) {
+ token = 69 /* Identifier */;
+ }
+ else if (isKeyword(lastNonTriviaToken) && isKeyword(token) && !canFollow(lastNonTriviaToken, token)) {
+ // We have two keywords in a row. Only treat the second as a keyword if
+ // it's a sequence that could legally occur in the language. Otherwise
+ // treat it as an identifier. This way, if someone writes "private var"
+ // we recognize that 'var' is actually an identifier here.
+ token = 69 /* Identifier */;
+ }
+ else if (lastNonTriviaToken === 69 /* Identifier */ &&
+ token === 25 /* LessThanToken */) {
+ // Could be the start of something generic. Keep track of that by bumping
+ // up the current count of generic contexts we may be in.
+ angleBracketStack++;
+ }
+ else if (token === 27 /* GreaterThanToken */ && angleBracketStack > 0) {
+ // If we think we're currently in something generic, then mark that that
+ // generic entity is complete.
+ angleBracketStack--;
+ }
+ else if (token === 117 /* AnyKeyword */ ||
+ token === 130 /* StringKeyword */ ||
+ token === 128 /* NumberKeyword */ ||
+ token === 120 /* BooleanKeyword */ ||
+ token === 131 /* SymbolKeyword */) {
+ if (angleBracketStack > 0 && !syntacticClassifierAbsent) {
+ // If it looks like we're could be in something generic, don't classify this
+ // as a keyword. We may just get overwritten by the syntactic classifier,
+ // causing a noisy experience for the user.
+ token = 69 /* Identifier */;
+ }
+ }
+ else if (token === 12 /* TemplateHead */) {
+ templateStack.push(token);
+ }
+ else if (token === 15 /* OpenBraceToken */) {
+ // If we don't have anything on the template stack,
+ // then we aren't trying to keep track of a previously scanned template head.
+ if (templateStack.length > 0) {
+ templateStack.push(token);
+ }
+ }
+ else if (token === 16 /* CloseBraceToken */) {
+ // If we don't have anything on the template stack,
+ // then we aren't trying to keep track of a previously scanned template head.
+ if (templateStack.length > 0) {
+ var lastTemplateStackToken = ts.lastOrUndefined(templateStack);
+ if (lastTemplateStackToken === 12 /* TemplateHead */) {
+ token = scanner.reScanTemplateToken();
+ // Only pop on a TemplateTail; a TemplateMiddle indicates there is more for us.
+ if (token === 14 /* TemplateTail */) {
+ templateStack.pop();
+ }
+ else {
+ ts.Debug.assert(token === 13 /* TemplateMiddle */, "Should have been a template middle. Was " + token);
+ }
+ }
+ else {
+ ts.Debug.assert(lastTemplateStackToken === 15 /* OpenBraceToken */, "Should have been an open brace. Was: " + token);
+ templateStack.pop();
+ }
+ }
+ }
+ lastNonTriviaToken = token;
+ }
+ processToken();
+ } while (token !== 1 /* EndOfFileToken */);
+ return result;
+ function processToken() {
+ var start = scanner.getTokenPos();
+ var end = scanner.getTextPos();
+ addResult(start, end, classFromKind(token));
+ if (end >= text.length) {
+ if (token === 9 /* StringLiteral */) {
+ // Check to see if we finished up on a multiline string literal.
+ var tokenText = scanner.getTokenText();
+ if (scanner.isUnterminated()) {
+ var lastCharIndex = tokenText.length - 1;
+ var numBackslashes = 0;
+ while (tokenText.charCodeAt(lastCharIndex - numBackslashes) === 92 /* backslash */) {
+ numBackslashes++;
+ }
+ // If we have an odd number of backslashes, then the multiline string is unclosed
+ if (numBackslashes & 1) {
+ var quoteChar = tokenText.charCodeAt(0);
+ result.endOfLineState = quoteChar === 34 /* doubleQuote */
+ ? 3 /* InDoubleQuoteStringLiteral */
+ : 2 /* InSingleQuoteStringLiteral */;
+ }
+ }
+ }
+ else if (token === 3 /* MultiLineCommentTrivia */) {
+ // Check to see if the multiline comment was unclosed.
+ if (scanner.isUnterminated()) {
+ result.endOfLineState = 1 /* InMultiLineCommentTrivia */;
+ }
+ }
+ else if (ts.isTemplateLiteralKind(token)) {
+ if (scanner.isUnterminated()) {
+ if (token === 14 /* TemplateTail */) {
+ result.endOfLineState = 5 /* InTemplateMiddleOrTail */;
+ }
+ else if (token === 11 /* NoSubstitutionTemplateLiteral */) {
+ result.endOfLineState = 4 /* InTemplateHeadOrNoSubstitutionTemplate */;
+ }
+ else {
+ ts.Debug.fail("Only 'NoSubstitutionTemplateLiteral's and 'TemplateTail's can be unterminated; got SyntaxKind #" + token);
+ }
+ }
+ }
+ else if (templateStack.length > 0 && ts.lastOrUndefined(templateStack) === 12 /* TemplateHead */) {
+ result.endOfLineState = 6 /* InTemplateSubstitutionPosition */;
+ }
+ }
+ }
+ function addResult(start, end, classification) {
+ if (classification === 8 /* whiteSpace */) {
+ // Don't bother with whitespace classifications. They're not needed.
+ return;
+ }
+ if (start === 0 && offset > 0) {
+ // We're classifying the first token, and this was a case where we prepended
+ // text. We should consider the start of this token to be at the start of
+ // the original text.
+ start += offset;
+ }
+ // All our tokens are in relation to the augmented text. Move them back to be
+ // relative to the original text.
+ start -= offset;
+ end -= offset;
+ var length = end - start;
+ if (length > 0) {
+ result.spans.push(start);
+ result.spans.push(length);
+ result.spans.push(classification);
+ }
+ }
+ }
+ function isBinaryExpressionOperatorToken(token) {
+ switch (token) {
+ case 37 /* AsteriskToken */:
+ case 39 /* SlashToken */:
+ case 40 /* PercentToken */:
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 43 /* LessThanLessThanToken */:
+ case 44 /* GreaterThanGreaterThanToken */:
+ case 45 /* GreaterThanGreaterThanGreaterThanToken */:
+ case 25 /* LessThanToken */:
+ case 27 /* GreaterThanToken */:
+ case 28 /* LessThanEqualsToken */:
+ case 29 /* GreaterThanEqualsToken */:
+ case 91 /* InstanceOfKeyword */:
+ case 90 /* InKeyword */:
+ case 116 /* AsKeyword */:
+ case 30 /* EqualsEqualsToken */:
+ case 31 /* ExclamationEqualsToken */:
+ case 32 /* EqualsEqualsEqualsToken */:
+ case 33 /* ExclamationEqualsEqualsToken */:
+ case 46 /* AmpersandToken */:
+ case 48 /* CaretToken */:
+ case 47 /* BarToken */:
+ case 51 /* AmpersandAmpersandToken */:
+ case 52 /* BarBarToken */:
+ case 67 /* BarEqualsToken */:
+ case 66 /* AmpersandEqualsToken */:
+ case 68 /* CaretEqualsToken */:
+ case 63 /* LessThanLessThanEqualsToken */:
+ case 64 /* GreaterThanGreaterThanEqualsToken */:
+ case 65 /* GreaterThanGreaterThanGreaterThanEqualsToken */:
+ case 57 /* PlusEqualsToken */:
+ case 58 /* MinusEqualsToken */:
+ case 59 /* AsteriskEqualsToken */:
+ case 61 /* SlashEqualsToken */:
+ case 62 /* PercentEqualsToken */:
+ case 56 /* EqualsToken */:
+ case 24 /* CommaToken */:
+ return true;
+ default:
+ return false;
+ }
+ }
+ function isPrefixUnaryExpressionOperatorToken(token) {
+ switch (token) {
+ case 35 /* PlusToken */:
+ case 36 /* MinusToken */:
+ case 50 /* TildeToken */:
+ case 49 /* ExclamationToken */:
+ case 41 /* PlusPlusToken */:
+ case 42 /* MinusMinusToken */:
+ return true;
+ default:
+ return false;
+ }
+ }
+ function isKeyword(token) {
+ return token >= 70 /* FirstKeyword */ && token <= 134 /* LastKeyword */;
+ }
+ function classFromKind(token) {
+ if (isKeyword(token)) {
+ return 3 /* keyword */;
+ }
+ else if (isBinaryExpressionOperatorToken(token) || isPrefixUnaryExpressionOperatorToken(token)) {
+ return 5 /* operator */;
+ }
+ else if (token >= 15 /* FirstPunctuation */ && token <= 68 /* LastPunctuation */) {
+ return 10 /* punctuation */;
+ }
+ switch (token) {
+ case 8 /* NumericLiteral */:
+ return 4 /* numericLiteral */;
+ case 9 /* StringLiteral */:
+ return 6 /* stringLiteral */;
+ case 10 /* RegularExpressionLiteral */:
+ return 7 /* regularExpressionLiteral */;
+ case 7 /* ConflictMarkerTrivia */:
+ case 3 /* MultiLineCommentTrivia */:
+ case 2 /* SingleLineCommentTrivia */:
+ return 1 /* comment */;
+ case 5 /* WhitespaceTrivia */:
+ case 4 /* NewLineTrivia */:
+ return 8 /* whiteSpace */;
+ case 69 /* Identifier */:
+ default:
+ if (ts.isTemplateLiteralKind(token)) {
+ return 6 /* stringLiteral */;
+ }
+ return 2 /* identifier */;
+ }
+ }
+ return {
+ getClassificationsForLine: getClassificationsForLine,
+ getEncodedLexicalClassifications: getEncodedLexicalClassifications
+ };
+ }
+ ts.createClassifier = createClassifier;
+ /**
+ * Get the path of the default library files (lib.d.ts) as distributed with the typescript
+ * node package.
+ * The functionality is not supported if the ts module is consumed outside of a node module.
+ */
+ function getDefaultLibFilePath(options) {
+ // Check __dirname is defined and that we are on a node.js system.
+ if (typeof __dirname !== "undefined") {
+ return __dirname + ts.directorySeparator + ts.getDefaultLibFileName(options);
+ }
+ throw new Error("getDefaultLibFilePath is only supported when consumed as a node module. ");
+ }
+ ts.getDefaultLibFilePath = getDefaultLibFilePath;
+ function initializeServices() {
+ ts.objectAllocator = {
+ getNodeConstructor: function (kind) {
+ function Node() {
+ }
+ var proto = kind === 248 /* SourceFile */ ? new SourceFileObject() : new NodeObject();
+ proto.kind = kind;
+ proto.pos = -1;
+ proto.end = -1;
+ proto.flags = 0;
+ proto.parent = undefined;
+ Node.prototype = proto;
+ return Node;
+ },
+ getSymbolConstructor: function () { return SymbolObject; },
+ getTypeConstructor: function () { return TypeObject; },
+ getSignatureConstructor: function () { return SignatureObject; }
+ };
+ }
+ initializeServices();
+})(ts || (ts = {}));
+// Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0.
+// See LICENSE.txt in the project root for complete license information.
+/// <reference path='services.ts' />
+/* @internal */
+var ts;
+(function (ts) {
+ var BreakpointResolver;
+ (function (BreakpointResolver) {
+ /**
+ * Get the breakpoint span in given sourceFile
+ */
+ function spanInSourceFileAtLocation(sourceFile, position) {
+ // Cannot set breakpoint in dts file
+ if (sourceFile.flags & 8192 /* DeclarationFile */) {
+ return undefined;
+ }
+ var tokenAtLocation = ts.getTokenAtPosition(sourceFile, position);
+ var lineOfPosition = sourceFile.getLineAndCharacterOfPosition(position).line;
+ if (sourceFile.getLineAndCharacterOfPosition(tokenAtLocation.getStart()).line > lineOfPosition) {
+ // Get previous token if the token is returned starts on new line
+ // eg: let x =10; |--- cursor is here
+ // let y = 10;
+ // token at position will return let keyword on second line as the token but we would like to use
+ // token on same line if trailing trivia (comments or white spaces on same line) part of the last token on that line
+ tokenAtLocation = ts.findPrecedingToken(tokenAtLocation.pos, sourceFile);
+ // Its a blank line
+ if (!tokenAtLocation || sourceFile.getLineAndCharacterOfPosition(tokenAtLocation.getEnd()).line !== lineOfPosition) {
+ return undefined;
+ }
+ }
+ // Cannot set breakpoint in ambient declarations
+ if (ts.isInAmbientContext(tokenAtLocation)) {
+ return undefined;
+ }
+ // Get the span in the node based on its syntax
+ return spanInNode(tokenAtLocation);
+ function textSpan(startNode, endNode) {
+ return ts.createTextSpanFromBounds(startNode.getStart(), (endNode || startNode).getEnd());
+ }
+ function spanInNodeIfStartsOnSameLine(node, otherwiseOnNode) {
+ if (node && lineOfPosition === sourceFile.getLineAndCharacterOfPosition(node.getStart()).line) {
+ return spanInNode(node);
+ }
+ return spanInNode(otherwiseOnNode);
+ }
+ function spanInPreviousNode(node) {
+ return spanInNode(ts.findPrecedingToken(node.pos, sourceFile));
+ }
+ function spanInNextNode(node) {
+ return spanInNode(ts.findNextToken(node, node.parent));
+ }
+ function spanInNode(node) {
+ if (node) {
+ if (ts.isExpression(node)) {
+ if (node.parent.kind === 197 /* DoStatement */) {
+ // Set span as if on while keyword
+ return spanInPreviousNode(node);
+ }
+ if (node.parent.kind === 199 /* ForStatement */) {
+ // For now lets set the span on this expression, fix it later
+ return textSpan(node);
+ }
+ if (node.parent.kind === 181 /* BinaryExpression */ && node.parent.operatorToken.kind === 24 /* CommaToken */) {
+ // if this is comma expression, the breakpoint is possible in this expression
+ return textSpan(node);
+ }
+ if (node.parent.kind === 174 /* ArrowFunction */ && node.parent.body === node) {
+ // If this is body of arrow function, it is allowed to have the breakpoint
+ return textSpan(node);
+ }
+ }
+ switch (node.kind) {
+ case 193 /* VariableStatement */:
+ // Span on first variable declaration
+ return spanInVariableDeclaration(node.declarationList.declarations[0]);
+ case 211 /* VariableDeclaration */:
+ case 141 /* PropertyDeclaration */:
+ case 140 /* PropertySignature */:
+ return spanInVariableDeclaration(node);
+ case 138 /* Parameter */:
+ return spanInParameterDeclaration(node);
+ case 213 /* FunctionDeclaration */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 144 /* Constructor */:
+ case 173 /* FunctionExpression */:
+ case 174 /* ArrowFunction */:
+ return spanInFunctionDeclaration(node);
+ case 192 /* Block */:
+ if (ts.isFunctionBlock(node)) {
+ return spanInFunctionBlock(node);
+ }
+ // Fall through
+ case 219 /* ModuleBlock */:
+ return spanInBlock(node);
+ case 244 /* CatchClause */:
+ return spanInBlock(node.block);
+ case 195 /* ExpressionStatement */:
+ // span on the expression
+ return textSpan(node.expression);
+ case 204 /* ReturnStatement */:
+ // span on return keyword and expression if present
+ return textSpan(node.getChildAt(0), node.expression);
+ case 198 /* WhileStatement */:
+ // Span on while(...)
+ return textSpan(node, ts.findNextToken(node.expression, node));
+ case 197 /* DoStatement */:
+ // span in statement of the do statement
+ return spanInNode(node.statement);
+ case 210 /* DebuggerStatement */:
+ // span on debugger keyword
+ return textSpan(node.getChildAt(0));
+ case 196 /* IfStatement */:
+ // set on if(..) span
+ return textSpan(node, ts.findNextToken(node.expression, node));
+ case 207 /* LabeledStatement */:
+ // span in statement
+ return spanInNode(node.statement);
+ case 203 /* BreakStatement */:
+ case 202 /* ContinueStatement */:
+ // On break or continue keyword and label if present
+ return textSpan(node.getChildAt(0), node.label);
+ case 199 /* ForStatement */:
+ return spanInForStatement(node);
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ // span on for (a in ...)
+ return textSpan(node, ts.findNextToken(node.expression, node));
+ case 206 /* SwitchStatement */:
+ // span on switch(...)
+ return textSpan(node, ts.findNextToken(node.expression, node));
+ case 241 /* CaseClause */:
+ case 242 /* DefaultClause */:
+ // span in first statement of the clause
+ return spanInNode(node.statements[0]);
+ case 209 /* TryStatement */:
+ // span in try block
+ return spanInBlock(node.tryBlock);
+ case 208 /* ThrowStatement */:
+ // span in throw ...
+ return textSpan(node, node.expression);
+ case 227 /* ExportAssignment */:
+ // span on export = id
+ return textSpan(node, node.expression);
+ case 221 /* ImportEqualsDeclaration */:
+ // import statement without including semicolon
+ return textSpan(node, node.moduleReference);
+ case 222 /* ImportDeclaration */:
+ // import statement without including semicolon
+ return textSpan(node, node.moduleSpecifier);
+ case 228 /* ExportDeclaration */:
+ // import statement without including semicolon
+ return textSpan(node, node.moduleSpecifier);
+ case 218 /* ModuleDeclaration */:
+ // span on complete module if it is instantiated
+ if (ts.getModuleInstanceState(node) !== 1 /* Instantiated */) {
+ return undefined;
+ }
+ case 214 /* ClassDeclaration */:
+ case 217 /* EnumDeclaration */:
+ case 247 /* EnumMember */:
+ case 168 /* CallExpression */:
+ case 169 /* NewExpression */:
+ // span on complete node
+ return textSpan(node);
+ case 205 /* WithStatement */:
+ // span in statement
+ return spanInNode(node.statement);
+ // No breakpoint in interface, type alias
+ case 215 /* InterfaceDeclaration */:
+ case 216 /* TypeAliasDeclaration */:
+ return undefined;
+ // Tokens:
+ case 23 /* SemicolonToken */:
+ case 1 /* EndOfFileToken */:
+ return spanInNodeIfStartsOnSameLine(ts.findPrecedingToken(node.pos, sourceFile));
+ case 24 /* CommaToken */:
+ return spanInPreviousNode(node);
+ case 15 /* OpenBraceToken */:
+ return spanInOpenBraceToken(node);
+ case 16 /* CloseBraceToken */:
+ return spanInCloseBraceToken(node);
+ case 17 /* OpenParenToken */:
+ return spanInOpenParenToken(node);
+ case 18 /* CloseParenToken */:
+ return spanInCloseParenToken(node);
+ case 54 /* ColonToken */:
+ return spanInColonToken(node);
+ case 27 /* GreaterThanToken */:
+ case 25 /* LessThanToken */:
+ return spanInGreaterThanOrLessThanToken(node);
+ // Keywords:
+ case 104 /* WhileKeyword */:
+ return spanInWhileKeyword(node);
+ case 80 /* ElseKeyword */:
+ case 72 /* CatchKeyword */:
+ case 85 /* FinallyKeyword */:
+ return spanInNextNode(node);
+ default:
+ // If this is name of property assignment, set breakpoint in the initializer
+ if (node.parent.kind === 245 /* PropertyAssignment */ && node.parent.name === node) {
+ return spanInNode(node.parent.initializer);
+ }
+ // Breakpoint in type assertion goes to its operand
+ if (node.parent.kind === 171 /* TypeAssertionExpression */ && node.parent.type === node) {
+ return spanInNode(node.parent.expression);
+ }
+ // return type of function go to previous token
+ if (ts.isFunctionLike(node.parent) && node.parent.type === node) {
+ return spanInPreviousNode(node);
+ }
+ // Default go to parent to set the breakpoint
+ return spanInNode(node.parent);
+ }
+ }
+ function spanInVariableDeclaration(variableDeclaration) {
+ // If declaration of for in statement, just set the span in parent
+ if (variableDeclaration.parent.parent.kind === 200 /* ForInStatement */ ||
+ variableDeclaration.parent.parent.kind === 201 /* ForOfStatement */) {
+ return spanInNode(variableDeclaration.parent.parent);
+ }
+ var isParentVariableStatement = variableDeclaration.parent.parent.kind === 193 /* VariableStatement */;
+ var isDeclarationOfForStatement = variableDeclaration.parent.parent.kind === 199 /* ForStatement */ && ts.contains(variableDeclaration.parent.parent.initializer.declarations, variableDeclaration);
+ var declarations = isParentVariableStatement
+ ? variableDeclaration.parent.parent.declarationList.declarations
+ : isDeclarationOfForStatement
+ ? variableDeclaration.parent.parent.initializer.declarations
+ : undefined;
+ // Breakpoint is possible in variableDeclaration only if there is initialization
+ if (variableDeclaration.initializer || (variableDeclaration.flags & 1 /* Export */)) {
+ if (declarations && declarations[0] === variableDeclaration) {
+ if (isParentVariableStatement) {
+ // First declaration - include let keyword
+ return textSpan(variableDeclaration.parent, variableDeclaration);
+ }
+ else {
+ ts.Debug.assert(isDeclarationOfForStatement);
+ // Include let keyword from for statement declarations in the span
+ return textSpan(ts.findPrecedingToken(variableDeclaration.pos, sourceFile, variableDeclaration.parent), variableDeclaration);
+ }
+ }
+ else {
+ // Span only on this declaration
+ return textSpan(variableDeclaration);
+ }
+ }
+ else if (declarations && declarations[0] !== variableDeclaration) {
+ // If we cant set breakpoint on this declaration, set it on previous one
+ var indexOfCurrentDeclaration = ts.indexOf(declarations, variableDeclaration);
+ return spanInVariableDeclaration(declarations[indexOfCurrentDeclaration - 1]);
+ }
+ }
+ function canHaveSpanInParameterDeclaration(parameter) {
+ // Breakpoint is possible on parameter only if it has initializer, is a rest parameter, or has public or private modifier
+ return !!parameter.initializer || parameter.dotDotDotToken !== undefined ||
+ !!(parameter.flags & 16 /* Public */) || !!(parameter.flags & 32 /* Private */);
+ }
+ function spanInParameterDeclaration(parameter) {
+ if (canHaveSpanInParameterDeclaration(parameter)) {
+ return textSpan(parameter);
+ }
+ else {
+ var functionDeclaration = parameter.parent;
+ var indexOfParameter = ts.indexOf(functionDeclaration.parameters, parameter);
+ if (indexOfParameter) {
+ // Not a first parameter, go to previous parameter
+ return spanInParameterDeclaration(functionDeclaration.parameters[indexOfParameter - 1]);
+ }
+ else {
+ // Set breakpoint in the function declaration body
+ return spanInNode(functionDeclaration.body);
+ }
+ }
+ }
+ function canFunctionHaveSpanInWholeDeclaration(functionDeclaration) {
+ return !!(functionDeclaration.flags & 1 /* Export */) ||
+ (functionDeclaration.parent.kind === 214 /* ClassDeclaration */ && functionDeclaration.kind !== 144 /* Constructor */);
+ }
+ function spanInFunctionDeclaration(functionDeclaration) {
+ // No breakpoints in the function signature
+ if (!functionDeclaration.body) {
+ return undefined;
+ }
+ if (canFunctionHaveSpanInWholeDeclaration(functionDeclaration)) {
+ // Set the span on whole function declaration
+ return textSpan(functionDeclaration);
+ }
+ // Set span in function body
+ return spanInNode(functionDeclaration.body);
+ }
+ function spanInFunctionBlock(block) {
+ var nodeForSpanInBlock = block.statements.length ? block.statements[0] : block.getLastToken();
+ if (canFunctionHaveSpanInWholeDeclaration(block.parent)) {
+ return spanInNodeIfStartsOnSameLine(block.parent, nodeForSpanInBlock);
+ }
+ return spanInNode(nodeForSpanInBlock);
+ }
+ function spanInBlock(block) {
+ switch (block.parent.kind) {
+ case 218 /* ModuleDeclaration */:
+ if (ts.getModuleInstanceState(block.parent) !== 1 /* Instantiated */) {
+ return undefined;
+ }
+ // Set on parent if on same line otherwise on first statement
+ case 198 /* WhileStatement */:
+ case 196 /* IfStatement */:
+ case 200 /* ForInStatement */:
+ case 201 /* ForOfStatement */:
+ return spanInNodeIfStartsOnSameLine(block.parent, block.statements[0]);
+ // Set span on previous token if it starts on same line otherwise on the first statement of the block
+ case 199 /* ForStatement */:
+ return spanInNodeIfStartsOnSameLine(ts.findPrecedingToken(block.pos, sourceFile, block.parent), block.statements[0]);
+ }
+ // Default action is to set on first statement
+ return spanInNode(block.statements[0]);
+ }
+ function spanInForStatement(forStatement) {
+ if (forStatement.initializer) {
+ if (forStatement.initializer.kind === 212 /* VariableDeclarationList */) {
+ var variableDeclarationList = forStatement.initializer;
+ if (variableDeclarationList.declarations.length > 0) {
+ return spanInNode(variableDeclarationList.declarations[0]);
+ }
+ }
+ else {
+ return spanInNode(forStatement.initializer);
+ }
+ }
+ if (forStatement.condition) {
+ return textSpan(forStatement.condition);
+ }
+ if (forStatement.incrementor) {
+ return textSpan(forStatement.incrementor);
+ }
+ }
+ // Tokens:
+ function spanInOpenBraceToken(node) {
+ switch (node.parent.kind) {
+ case 217 /* EnumDeclaration */:
+ var enumDeclaration = node.parent;
+ return spanInNodeIfStartsOnSameLine(ts.findPrecedingToken(node.pos, sourceFile, node.parent), enumDeclaration.members.length ? enumDeclaration.members[0] : enumDeclaration.getLastToken(sourceFile));
+ case 214 /* ClassDeclaration */:
+ var classDeclaration = node.parent;
+ return spanInNodeIfStartsOnSameLine(ts.findPrecedingToken(node.pos, sourceFile, node.parent), classDeclaration.members.length ? classDeclaration.members[0] : classDeclaration.getLastToken(sourceFile));
+ case 220 /* CaseBlock */:
+ return spanInNodeIfStartsOnSameLine(node.parent.parent, node.parent.clauses[0]);
+ }
+ // Default to parent node
+ return spanInNode(node.parent);
+ }
+ function spanInCloseBraceToken(node) {
+ switch (node.parent.kind) {
+ case 219 /* ModuleBlock */:
+ // If this is not instantiated module block no bp span
+ if (ts.getModuleInstanceState(node.parent.parent) !== 1 /* Instantiated */) {
+ return undefined;
+ }
+ case 217 /* EnumDeclaration */:
+ case 214 /* ClassDeclaration */:
+ // Span on close brace token
+ return textSpan(node);
+ case 192 /* Block */:
+ if (ts.isFunctionBlock(node.parent)) {
+ // Span on close brace token
+ return textSpan(node);
+ }
+ // fall through.
+ case 244 /* CatchClause */:
+ return spanInNode(ts.lastOrUndefined(node.parent.statements));
+ ;
+ case 220 /* CaseBlock */:
+ // breakpoint in last statement of the last clause
+ var caseBlock = node.parent;
+ var lastClause = ts.lastOrUndefined(caseBlock.clauses);
+ if (lastClause) {
+ return spanInNode(ts.lastOrUndefined(lastClause.statements));
+ }
+ return undefined;
+ // Default to parent node
+ default:
+ return spanInNode(node.parent);
+ }
+ }
+ function spanInOpenParenToken(node) {
+ if (node.parent.kind === 197 /* DoStatement */) {
+ // Go to while keyword and do action instead
+ return spanInPreviousNode(node);
+ }
+ // Default to parent node
+ return spanInNode(node.parent);
+ }
+ function spanInCloseParenToken(node) {
+ // Is this close paren token of parameter list, set span in previous token
+ switch (node.parent.kind) {
+ case 173 /* FunctionExpression */:
+ case 213 /* FunctionDeclaration */:
+ case 174 /* ArrowFunction */:
+ case 143 /* MethodDeclaration */:
+ case 142 /* MethodSignature */:
+ case 145 /* GetAccessor */:
+ case 146 /* SetAccessor */:
+ case 144 /* Constructor */:
+ case 198 /* WhileStatement */:
+ case 197 /* DoStatement */:
+ case 199 /* ForStatement */:
+ return spanInPreviousNode(node);
+ // Default to parent node
+ default:
+ return spanInNode(node.parent);
+ }
+ // Default to parent node
+ return spanInNode(node.parent);
+ }
+ function spanInColonToken(node) {
+ // Is this : specifying return annotation of the function declaration
+ if (ts.isFunctionLike(node.parent) || node.parent.kind === 245 /* PropertyAssignment */) {
+ return spanInPreviousNode(node);
+ }
+ return spanInNode(node.parent);
+ }
+ function spanInGreaterThanOrLessThanToken(node) {
+ if (node.parent.kind === 171 /* TypeAssertionExpression */) {
+ return spanInNode(node.parent.expression);
+ }
+ return spanInNode(node.parent);
+ }
+ function spanInWhileKeyword(node) {
+ if (node.parent.kind === 197 /* DoStatement */) {
+ // Set span on while expression
+ return textSpan(node, ts.findNextToken(node.parent.expression, node.parent));
+ }
+ // Default to parent node
+ return spanInNode(node.parent);
+ }
+ }
+ }
+ BreakpointResolver.spanInSourceFileAtLocation = spanInSourceFileAtLocation;
+ })(BreakpointResolver = ts.BreakpointResolver || (ts.BreakpointResolver = {}));
+})(ts || (ts = {}));
+//
+// Copyright (c) Microsoft Corporation. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+/// <reference path='services.ts' />
+/* @internal */
+var debugObjectHost = this;
+/* @internal */
+var ts;
+(function (ts) {
+ function logInternalError(logger, err) {
+ if (logger) {
+ logger.log("*INTERNAL ERROR* - Exception in typescript services: " + err.message);
+ }
+ }
+ var ScriptSnapshotShimAdapter = (function () {
+ function ScriptSnapshotShimAdapter(scriptSnapshotShim) {
+ this.scriptSnapshotShim = scriptSnapshotShim;
+ this.lineStartPositions = null;
+ }
+ ScriptSnapshotShimAdapter.prototype.getText = function (start, end) {
+ return this.scriptSnapshotShim.getText(start, end);
+ };
+ ScriptSnapshotShimAdapter.prototype.getLength = function () {
+ return this.scriptSnapshotShim.getLength();
+ };
+ ScriptSnapshotShimAdapter.prototype.getChangeRange = function (oldSnapshot) {
+ var oldSnapshotShim = oldSnapshot;
+ var encoded = this.scriptSnapshotShim.getChangeRange(oldSnapshotShim.scriptSnapshotShim);
+ // TODO: should this be '==='?
+ if (encoded == null) {
+ return null;
+ }
+ var decoded = JSON.parse(encoded);
+ return ts.createTextChangeRange(ts.createTextSpan(decoded.span.start, decoded.span.length), decoded.newLength);
+ };
+ ScriptSnapshotShimAdapter.prototype.dispose = function () {
+ // if scriptSnapshotShim is a COM object then property check becomes method call with no arguments
+ // 'in' does not have this effect
+ if ("dispose" in this.scriptSnapshotShim) {
+ this.scriptSnapshotShim.dispose();
+ }
+ };
+ return ScriptSnapshotShimAdapter;
+ })();
+ var LanguageServiceShimHostAdapter = (function () {
+ function LanguageServiceShimHostAdapter(shimHost) {
+ var _this = this;
+ this.shimHost = shimHost;
+ this.loggingEnabled = false;
+ this.tracingEnabled = false;
+ // if shimHost is a COM object then property check will become method call with no arguments.
+ // 'in' does not have this effect.
+ if ("getModuleResolutionsForFile" in this.shimHost) {
+ this.resolveModuleNames = function (moduleNames, containingFile) {
+ var resolutionsInFile = JSON.parse(_this.shimHost.getModuleResolutionsForFile(containingFile));
+ return ts.map(moduleNames, function (name) {
+ var result = ts.lookUp(resolutionsInFile, name);
+ return result ? { resolvedFileName: result } : undefined;
+ });
+ };
+ }
+ }
+ LanguageServiceShimHostAdapter.prototype.log = function (s) {
+ if (this.loggingEnabled) {
+ this.shimHost.log(s);
+ }
+ };
+ LanguageServiceShimHostAdapter.prototype.trace = function (s) {
+ if (this.tracingEnabled) {
+ this.shimHost.trace(s);
+ }
+ };
+ LanguageServiceShimHostAdapter.prototype.error = function (s) {
+ this.shimHost.error(s);
+ };
+ LanguageServiceShimHostAdapter.prototype.getProjectVersion = function () {
+ if (!this.shimHost.getProjectVersion) {
+ // shimmed host does not support getProjectVersion
+ return undefined;
+ }
+ return this.shimHost.getProjectVersion();
+ };
+ LanguageServiceShimHostAdapter.prototype.useCaseSensitiveFileNames = function () {
+ return this.shimHost.useCaseSensitiveFileNames ? this.shimHost.useCaseSensitiveFileNames() : false;
+ };
+ LanguageServiceShimHostAdapter.prototype.getCompilationSettings = function () {
+ var settingsJson = this.shimHost.getCompilationSettings();
+ // TODO: should this be '==='?
+ if (settingsJson == null || settingsJson == "") {
+ throw Error("LanguageServiceShimHostAdapter.getCompilationSettings: empty compilationSettings");
+ return null;
+ }
+ return JSON.parse(settingsJson);
+ };
+ LanguageServiceShimHostAdapter.prototype.getScriptFileNames = function () {
+ var encoded = this.shimHost.getScriptFileNames();
+ return this.files = JSON.parse(encoded);
+ };
+ LanguageServiceShimHostAdapter.prototype.getScriptSnapshot = function (fileName) {
+ // Shim the API changes for 1.5 release. This should be removed once
+ // TypeScript 1.5 has shipped.
+ if (this.files && this.files.indexOf(fileName) < 0) {
+ return undefined;
+ }
+ var scriptSnapshot = this.shimHost.getScriptSnapshot(fileName);
+ return scriptSnapshot && new ScriptSnapshotShimAdapter(scriptSnapshot);
+ };
+ LanguageServiceShimHostAdapter.prototype.getScriptVersion = function (fileName) {
+ return this.shimHost.getScriptVersion(fileName);
+ };
+ LanguageServiceShimHostAdapter.prototype.getLocalizedDiagnosticMessages = function () {
+ var diagnosticMessagesJson = this.shimHost.getLocalizedDiagnosticMessages();
+ if (diagnosticMessagesJson == null || diagnosticMessagesJson == "") {
+ return null;
+ }
+ try {
+ return JSON.parse(diagnosticMessagesJson);
+ }
+ catch (e) {
+ this.log(e.description || "diagnosticMessages.generated.json has invalid JSON format");
+ return null;
+ }
+ };
+ LanguageServiceShimHostAdapter.prototype.getCancellationToken = function () {
+ var hostCancellationToken = this.shimHost.getCancellationToken();
+ return new ThrottledCancellationToken(hostCancellationToken);
+ };
+ LanguageServiceShimHostAdapter.prototype.getCurrentDirectory = function () {
+ return this.shimHost.getCurrentDirectory();
+ };
+ LanguageServiceShimHostAdapter.prototype.getDefaultLibFileName = function (options) {
+ // Wrap the API changes for 1.5 release. This try/catch
+ // should be removed once TypeScript 1.5 has shipped.
+ try {
+ return this.shimHost.getDefaultLibFileName(JSON.stringify(options));
+ }
+ catch (e) {
+ return "";
+ }
+ };
+ return LanguageServiceShimHostAdapter;
+ })();
+ ts.LanguageServiceShimHostAdapter = LanguageServiceShimHostAdapter;
+ /** A cancellation that throttles calls to the host */
+ var ThrottledCancellationToken = (function () {
+ function ThrottledCancellationToken(hostCancellationToken) {
+ this.hostCancellationToken = hostCancellationToken;
+ // Store when we last tried to cancel. Checking cancellation can be expensive (as we have
+ // to marshall over to the host layer). So we only bother actually checking once enough
+ // time has passed.
+ this.lastCancellationCheckTime = 0;
+ }
+ ThrottledCancellationToken.prototype.isCancellationRequested = function () {
+ var time = Date.now();
+ var duration = Math.abs(time - this.lastCancellationCheckTime);
+ if (duration > 10) {
+ // Check no more than once every 10 ms.
+ this.lastCancellationCheckTime = time;
+ return this.hostCancellationToken.isCancellationRequested();
+ }
+ return false;
+ };
+ return ThrottledCancellationToken;
+ })();
+ var CoreServicesShimHostAdapter = (function () {
+ function CoreServicesShimHostAdapter(shimHost) {
+ this.shimHost = shimHost;
+ }
+ CoreServicesShimHostAdapter.prototype.readDirectory = function (rootDir, extension, exclude) {
+ // Wrap the API changes for 1.5 release. This try/catch
+ // should be removed once TypeScript 1.5 has shipped.
+ // Also consider removing the optional designation for
+ // the exclude param at this time.
+ var encoded;
+ try {
+ encoded = this.shimHost.readDirectory(rootDir, extension, JSON.stringify(exclude));
+ }
+ catch (e) {
+ encoded = this.shimHost.readDirectory(rootDir, extension);
+ }
+ return JSON.parse(encoded);
+ };
+ CoreServicesShimHostAdapter.prototype.fileExists = function (fileName) {
+ return this.shimHost.fileExists(fileName);
+ };
+ CoreServicesShimHostAdapter.prototype.readFile = function (fileName) {
+ return this.shimHost.readFile(fileName);
+ };
+ return CoreServicesShimHostAdapter;
+ })();
+ ts.CoreServicesShimHostAdapter = CoreServicesShimHostAdapter;
+ function simpleForwardCall(logger, actionDescription, action, logPerformance) {
+ if (logPerformance) {
+ logger.log(actionDescription);
+ var start = Date.now();
+ }
+ var result = action();
+ if (logPerformance) {
+ var end = Date.now();
+ logger.log(actionDescription + " completed in " + (end - start) + " msec");
+ if (typeof (result) === "string") {
+ var str = result;
+ if (str.length > 128) {
+ str = str.substring(0, 128) + "...";
+ }
+ logger.log(" result.length=" + str.length + ", result='" + JSON.stringify(str) + "'");
+ }
+ }
+ return result;
+ }
+ function forwardJSONCall(logger, actionDescription, action, logPerformance) {
+ try {
+ var result = simpleForwardCall(logger, actionDescription, action, logPerformance);
+ return JSON.stringify({ result: result });
+ }
+ catch (err) {
+ if (err instanceof ts.OperationCanceledException) {
+ return JSON.stringify({ canceled: true });
+ }
+ logInternalError(logger, err);
+ err.description = actionDescription;
+ return JSON.stringify({ error: err });
+ }
+ }
+ var ShimBase = (function () {
+ function ShimBase(factory) {
+ this.factory = factory;
+ factory.registerShim(this);
+ }
+ ShimBase.prototype.dispose = function (dummy) {
+ this.factory.unregisterShim(this);
+ };
+ return ShimBase;
+ })();
+ function realizeDiagnostics(diagnostics, newLine) {
+ return diagnostics.map(function (d) { return realizeDiagnostic(d, newLine); });
+ }
+ ts.realizeDiagnostics = realizeDiagnostics;
+ function realizeDiagnostic(diagnostic, newLine) {
+ return {
+ message: ts.flattenDiagnosticMessageText(diagnostic.messageText, newLine),
+ start: diagnostic.start,
+ length: diagnostic.length,
+ /// TODO: no need for the tolowerCase call
+ category: ts.DiagnosticCategory[diagnostic.category].toLowerCase(),
+ code: diagnostic.code
+ };
+ }
+ var LanguageServiceShimObject = (function (_super) {
+ __extends(LanguageServiceShimObject, _super);
+ function LanguageServiceShimObject(factory, host, languageService) {
+ _super.call(this, factory);
+ this.host = host;
+ this.languageService = languageService;
+ this.logPerformance = false;
+ this.logger = this.host;
+ }
+ LanguageServiceShimObject.prototype.forwardJSONCall = function (actionDescription, action) {
+ return forwardJSONCall(this.logger, actionDescription, action, this.logPerformance);
+ };
+ /// DISPOSE
+ /**
+ * Ensure (almost) deterministic release of internal Javascript resources when
+ * some external native objects holds onto us (e.g. Com/Interop).
+ */
+ LanguageServiceShimObject.prototype.dispose = function (dummy) {
+ this.logger.log("dispose()");
+ this.languageService.dispose();
+ this.languageService = null;
+ // force a GC
+ if (debugObjectHost && debugObjectHost.CollectGarbage) {
+ debugObjectHost.CollectGarbage();
+ this.logger.log("CollectGarbage()");
+ }
+ this.logger = null;
+ _super.prototype.dispose.call(this, dummy);
+ };
+ /// REFRESH
+ /**
+ * Update the list of scripts known to the compiler
+ */
+ LanguageServiceShimObject.prototype.refresh = function (throwOnError) {
+ this.forwardJSONCall("refresh(" + throwOnError + ")", function () {
+ return null;
+ });
+ };
+ LanguageServiceShimObject.prototype.cleanupSemanticCache = function () {
+ var _this = this;
+ this.forwardJSONCall("cleanupSemanticCache()", function () {
+ _this.languageService.cleanupSemanticCache();
+ return null;
+ });
+ };
+ LanguageServiceShimObject.prototype.realizeDiagnostics = function (diagnostics) {
+ var newLine = ts.getNewLineOrDefaultFromHost(this.host);
+ return ts.realizeDiagnostics(diagnostics, newLine);
+ };
+ LanguageServiceShimObject.prototype.getSyntacticClassifications = function (fileName, start, length) {
+ var _this = this;
+ return this.forwardJSONCall("getSyntacticClassifications('" + fileName + "', " + start + ", " + length + ")", function () {
+ var classifications = _this.languageService.getSyntacticClassifications(fileName, ts.createTextSpan(start, length));
+ return classifications;
+ });
+ };
+ LanguageServiceShimObject.prototype.getSemanticClassifications = function (fileName, start, length) {
+ var _this = this;
+ return this.forwardJSONCall("getSemanticClassifications('" + fileName + "', " + start + ", " + length + ")", function () {
+ var classifications = _this.languageService.getSemanticClassifications(fileName, ts.createTextSpan(start, length));
+ return classifications;
+ });
+ };
+ LanguageServiceShimObject.prototype.getEncodedSyntacticClassifications = function (fileName, start, length) {
+ var _this = this;
+ return this.forwardJSONCall("getEncodedSyntacticClassifications('" + fileName + "', " + start + ", " + length + ")", function () {
+ // directly serialize the spans out to a string. This is much faster to decode
+ // on the managed side versus a full JSON array.
+ return convertClassifications(_this.languageService.getEncodedSyntacticClassifications(fileName, ts.createTextSpan(start, length)));
+ });
+ };
+ LanguageServiceShimObject.prototype.getEncodedSemanticClassifications = function (fileName, start, length) {
+ var _this = this;
+ return this.forwardJSONCall("getEncodedSemanticClassifications('" + fileName + "', " + start + ", " + length + ")", function () {
+ // directly serialize the spans out to a string. This is much faster to decode
+ // on the managed side versus a full JSON array.
+ return convertClassifications(_this.languageService.getEncodedSemanticClassifications(fileName, ts.createTextSpan(start, length)));
+ });
+ };
+ LanguageServiceShimObject.prototype.getSyntacticDiagnostics = function (fileName) {
+ var _this = this;
+ return this.forwardJSONCall("getSyntacticDiagnostics('" + fileName + "')", function () {
+ var diagnostics = _this.languageService.getSyntacticDiagnostics(fileName);
+ return _this.realizeDiagnostics(diagnostics);
+ });
+ };
+ LanguageServiceShimObject.prototype.getSemanticDiagnostics = function (fileName) {
+ var _this = this;
+ return this.forwardJSONCall("getSemanticDiagnostics('" + fileName + "')", function () {
+ var diagnostics = _this.languageService.getSemanticDiagnostics(fileName);
+ return _this.realizeDiagnostics(diagnostics);
+ });
+ };
+ LanguageServiceShimObject.prototype.getCompilerOptionsDiagnostics = function () {
+ var _this = this;
+ return this.forwardJSONCall("getCompilerOptionsDiagnostics()", function () {
+ var diagnostics = _this.languageService.getCompilerOptionsDiagnostics();
+ return _this.realizeDiagnostics(diagnostics);
+ });
+ };
+ /// QUICKINFO
+ /**
+ * Computes a string representation of the type at the requested position
+ * in the active file.
+ */
+ LanguageServiceShimObject.prototype.getQuickInfoAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getQuickInfoAtPosition('" + fileName + "', " + position + ")", function () {
+ var quickInfo = _this.languageService.getQuickInfoAtPosition(fileName, position);
+ return quickInfo;
+ });
+ };
+ /// NAMEORDOTTEDNAMESPAN
+ /**
+ * Computes span information of the name or dotted name at the requested position
+ * in the active file.
+ */
+ LanguageServiceShimObject.prototype.getNameOrDottedNameSpan = function (fileName, startPos, endPos) {
+ var _this = this;
+ return this.forwardJSONCall("getNameOrDottedNameSpan('" + fileName + "', " + startPos + ", " + endPos + ")", function () {
+ var spanInfo = _this.languageService.getNameOrDottedNameSpan(fileName, startPos, endPos);
+ return spanInfo;
+ });
+ };
+ /**
+ * STATEMENTSPAN
+ * Computes span information of statement at the requested position in the active file.
+ */
+ LanguageServiceShimObject.prototype.getBreakpointStatementAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getBreakpointStatementAtPosition('" + fileName + "', " + position + ")", function () {
+ var spanInfo = _this.languageService.getBreakpointStatementAtPosition(fileName, position);
+ return spanInfo;
+ });
+ };
+ /// SIGNATUREHELP
+ LanguageServiceShimObject.prototype.getSignatureHelpItems = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getSignatureHelpItems('" + fileName + "', " + position + ")", function () {
+ var signatureInfo = _this.languageService.getSignatureHelpItems(fileName, position);
+ return signatureInfo;
+ });
+ };
+ /// GOTO DEFINITION
+ /**
+ * Computes the definition location and file for the symbol
+ * at the requested position.
+ */
+ LanguageServiceShimObject.prototype.getDefinitionAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getDefinitionAtPosition('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.getDefinitionAtPosition(fileName, position);
+ });
+ };
+ /// GOTO Type
+ /**
+ * Computes the definition location of the type of the symbol
+ * at the requested position.
+ */
+ LanguageServiceShimObject.prototype.getTypeDefinitionAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getTypeDefinitionAtPosition('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.getTypeDefinitionAtPosition(fileName, position);
+ });
+ };
+ LanguageServiceShimObject.prototype.getRenameInfo = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getRenameInfo('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.getRenameInfo(fileName, position);
+ });
+ };
+ LanguageServiceShimObject.prototype.findRenameLocations = function (fileName, position, findInStrings, findInComments) {
+ var _this = this;
+ return this.forwardJSONCall("findRenameLocations('" + fileName + "', " + position + ", " + findInStrings + ", " + findInComments + ")", function () {
+ return _this.languageService.findRenameLocations(fileName, position, findInStrings, findInComments);
+ });
+ };
+ /// GET BRACE MATCHING
+ LanguageServiceShimObject.prototype.getBraceMatchingAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getBraceMatchingAtPosition('" + fileName + "', " + position + ")", function () {
+ var textRanges = _this.languageService.getBraceMatchingAtPosition(fileName, position);
+ return textRanges;
+ });
+ };
+ /// GET SMART INDENT
+ LanguageServiceShimObject.prototype.getIndentationAtPosition = function (fileName, position, options /*Services.EditorOptions*/) {
+ var _this = this;
+ return this.forwardJSONCall("getIndentationAtPosition('" + fileName + "', " + position + ")", function () {
+ var localOptions = JSON.parse(options);
+ return _this.languageService.getIndentationAtPosition(fileName, position, localOptions);
+ });
+ };
+ /// GET REFERENCES
+ LanguageServiceShimObject.prototype.getReferencesAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getReferencesAtPosition('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.getReferencesAtPosition(fileName, position);
+ });
+ };
+ LanguageServiceShimObject.prototype.findReferences = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("findReferences('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.findReferences(fileName, position);
+ });
+ };
+ LanguageServiceShimObject.prototype.getOccurrencesAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getOccurrencesAtPosition('" + fileName + "', " + position + ")", function () {
+ return _this.languageService.getOccurrencesAtPosition(fileName, position);
+ });
+ };
+ LanguageServiceShimObject.prototype.getDocumentHighlights = function (fileName, position, filesToSearch) {
+ var _this = this;
+ return this.forwardJSONCall("getDocumentHighlights('" + fileName + "', " + position + ")", function () {
+ var results = _this.languageService.getDocumentHighlights(fileName, position, JSON.parse(filesToSearch));
+ // workaround for VS document higlighting issue - keep only items from the initial file
+ var normalizedName = ts.normalizeSlashes(fileName).toLowerCase();
+ return ts.filter(results, function (r) { return ts.normalizeSlashes(r.fileName).toLowerCase() === normalizedName; });
+ });
+ };
+ /// COMPLETION LISTS
+ /**
+ * Get a string based representation of the completions
+ * to provide at the given source position and providing a member completion
+ * list if requested.
+ */
+ LanguageServiceShimObject.prototype.getCompletionsAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getCompletionsAtPosition('" + fileName + "', " + position + ")", function () {
+ var completion = _this.languageService.getCompletionsAtPosition(fileName, position);
+ return completion;
+ });
+ };
+ /** Get a string based representation of a completion list entry details */
+ LanguageServiceShimObject.prototype.getCompletionEntryDetails = function (fileName, position, entryName) {
+ var _this = this;
+ return this.forwardJSONCall("getCompletionEntryDetails('" + fileName + "', " + position + ", " + entryName + ")", function () {
+ var details = _this.languageService.getCompletionEntryDetails(fileName, position, entryName);
+ return details;
+ });
+ };
+ LanguageServiceShimObject.prototype.getFormattingEditsForRange = function (fileName, start, end, options /*Services.FormatCodeOptions*/) {
+ var _this = this;
+ return this.forwardJSONCall("getFormattingEditsForRange('" + fileName + "', " + start + ", " + end + ")", function () {
+ var localOptions = JSON.parse(options);
+ var edits = _this.languageService.getFormattingEditsForRange(fileName, start, end, localOptions);
+ return edits;
+ });
+ };
+ LanguageServiceShimObject.prototype.getFormattingEditsForDocument = function (fileName, options /*Services.FormatCodeOptions*/) {
+ var _this = this;
+ return this.forwardJSONCall("getFormattingEditsForDocument('" + fileName + "')", function () {
+ var localOptions = JSON.parse(options);
+ var edits = _this.languageService.getFormattingEditsForDocument(fileName, localOptions);
+ return edits;
+ });
+ };
+ LanguageServiceShimObject.prototype.getFormattingEditsAfterKeystroke = function (fileName, position, key, options /*Services.FormatCodeOptions*/) {
+ var _this = this;
+ return this.forwardJSONCall("getFormattingEditsAfterKeystroke('" + fileName + "', " + position + ", '" + key + "')", function () {
+ var localOptions = JSON.parse(options);
+ var edits = _this.languageService.getFormattingEditsAfterKeystroke(fileName, position, key, localOptions);
+ return edits;
+ });
+ };
+ LanguageServiceShimObject.prototype.getDocCommentTemplateAtPosition = function (fileName, position) {
+ var _this = this;
+ return this.forwardJSONCall("getDocCommentTemplateAtPosition('" + fileName + "', " + position + ")", function () { return _this.languageService.getDocCommentTemplateAtPosition(fileName, position); });
+ };
+ /// NAVIGATE TO
+ /** Return a list of symbols that are interesting to navigate to */
+ LanguageServiceShimObject.prototype.getNavigateToItems = function (searchValue, maxResultCount) {
+ var _this = this;
+ return this.forwardJSONCall("getNavigateToItems('" + searchValue + "', " + maxResultCount + ")", function () {
+ var items = _this.languageService.getNavigateToItems(searchValue, maxResultCount);
+ return items;
+ });
+ };
+ LanguageServiceShimObject.prototype.getNavigationBarItems = function (fileName) {
+ var _this = this;
+ return this.forwardJSONCall("getNavigationBarItems('" + fileName + "')", function () {
+ var items = _this.languageService.getNavigationBarItems(fileName);
+ return items;
+ });
+ };
+ LanguageServiceShimObject.prototype.getOutliningSpans = function (fileName) {
+ var _this = this;
+ return this.forwardJSONCall("getOutliningSpans('" + fileName + "')", function () {
+ var items = _this.languageService.getOutliningSpans(fileName);
+ return items;
+ });
+ };
+ LanguageServiceShimObject.prototype.getTodoComments = function (fileName, descriptors) {
+ var _this = this;
+ return this.forwardJSONCall("getTodoComments('" + fileName + "')", function () {
+ var items = _this.languageService.getTodoComments(fileName, JSON.parse(descriptors));
+ return items;
+ });
+ };
+ /// Emit
+ LanguageServiceShimObject.prototype.getEmitOutput = function (fileName) {
+ var _this = this;
+ return this.forwardJSONCall("getEmitOutput('" + fileName + "')", function () {
+ var output = _this.languageService.getEmitOutput(fileName);
+ // Shim the API changes for 1.5 release. This should be removed once
+ // TypeScript 1.5 has shipped.
+ output.emitOutputStatus = output.emitSkipped ? 1 : 0;
+ return output;
+ });
+ };
+ return LanguageServiceShimObject;
+ })(ShimBase);
+ function convertClassifications(classifications) {
+ return { spans: classifications.spans.join(","), endOfLineState: classifications.endOfLineState };
+ }
+ var ClassifierShimObject = (function (_super) {
+ __extends(ClassifierShimObject, _super);
+ function ClassifierShimObject(factory, logger) {
+ _super.call(this, factory);
+ this.logger = logger;
+ this.logPerformance = false;
+ this.classifier = ts.createClassifier();
+ }
+ ClassifierShimObject.prototype.getEncodedLexicalClassifications = function (text, lexState, syntacticClassifierAbsent) {
+ var _this = this;
+ return forwardJSONCall(this.logger, "getEncodedLexicalClassifications", function () { return convertClassifications(_this.classifier.getEncodedLexicalClassifications(text, lexState, syntacticClassifierAbsent)); }, this.logPerformance);
+ };
+ /// COLORIZATION
+ ClassifierShimObject.prototype.getClassificationsForLine = function (text, lexState, classifyKeywordsInGenerics) {
+ var classification = this.classifier.getClassificationsForLine(text, lexState, classifyKeywordsInGenerics);
+ var items = classification.entries;
+ var result = "";
+ for (var i = 0; i < items.length; i++) {
+ result += items[i].length + "\n";
+ result += items[i].classification + "\n";
+ }
+ result += classification.finalLexState;
+ return result;
+ };
+ return ClassifierShimObject;
+ })(ShimBase);
+ var CoreServicesShimObject = (function (_super) {
+ __extends(CoreServicesShimObject, _super);
+ function CoreServicesShimObject(factory, logger, host) {
+ _super.call(this, factory);
+ this.logger = logger;
+ this.host = host;
+ this.logPerformance = false;
+ }
+ CoreServicesShimObject.prototype.forwardJSONCall = function (actionDescription, action) {
+ return forwardJSONCall(this.logger, actionDescription, action, this.logPerformance);
+ };
+ CoreServicesShimObject.prototype.resolveModuleName = function (fileName, moduleName, compilerOptionsJson) {
+ var _this = this;
+ return this.forwardJSONCall("resolveModuleName('" + fileName + "')", function () {
+ var compilerOptions = JSON.parse(compilerOptionsJson);
+ var result = ts.resolveModuleName(moduleName, ts.normalizeSlashes(fileName), compilerOptions, _this.host);
+ return {
+ resolvedFileName: result.resolvedModule ? result.resolvedModule.resolvedFileName : undefined,
+ failedLookupLocations: result.failedLookupLocations
+ };
+ });
+ };
+ CoreServicesShimObject.prototype.getPreProcessedFileInfo = function (fileName, sourceTextSnapshot) {
+ return this.forwardJSONCall("getPreProcessedFileInfo('" + fileName + "')", function () {
+ var result = ts.preProcessFile(sourceTextSnapshot.getText(0, sourceTextSnapshot.getLength()));
+ var convertResult = {
+ referencedFiles: [],
+ importedFiles: [],
+ ambientExternalModules: result.ambientExternalModules,
+ isLibFile: result.isLibFile
+ };
+ ts.forEach(result.referencedFiles, function (refFile) {
+ convertResult.referencedFiles.push({
+ path: ts.normalizePath(refFile.fileName),
+ position: refFile.pos,
+ length: refFile.end - refFile.pos
+ });
+ });
+ ts.forEach(result.importedFiles, function (importedFile) {
+ convertResult.importedFiles.push({
+ path: ts.normalizeSlashes(importedFile.fileName),
+ position: importedFile.pos,
+ length: importedFile.end - importedFile.pos
+ });
+ });
+ return convertResult;
+ });
+ };
+ CoreServicesShimObject.prototype.getTSConfigFileInfo = function (fileName, sourceTextSnapshot) {
+ var _this = this;
+ return this.forwardJSONCall("getTSConfigFileInfo('" + fileName + "')", function () {
+ var text = sourceTextSnapshot.getText(0, sourceTextSnapshot.getLength());
+ var result = ts.parseConfigFileTextToJson(fileName, text);
+ if (result.error) {
+ return {
+ options: {},
+ files: [],
+ errors: [realizeDiagnostic(result.error, '\r\n')]
+ };
+ }
+ var configFile = ts.parseJsonConfigFileContent(result.config, _this.host, ts.getDirectoryPath(ts.normalizeSlashes(fileName)));
+ return {
+ options: configFile.options,
+ files: configFile.fileNames,
+ errors: realizeDiagnostics(configFile.errors, '\r\n')
+ };
+ });
+ };
+ CoreServicesShimObject.prototype.getDefaultCompilationSettings = function () {
+ return this.forwardJSONCall("getDefaultCompilationSettings()", function () {
+ return ts.getDefaultCompilerOptions();
+ });
+ };
+ return CoreServicesShimObject;
+ })(ShimBase);
+ var TypeScriptServicesFactory = (function () {
+ function TypeScriptServicesFactory() {
+ this._shims = [];
+ }
+ /*
+ * Returns script API version.
+ */
+ TypeScriptServicesFactory.prototype.getServicesVersion = function () {
+ return ts.servicesVersion;
+ };
+ TypeScriptServicesFactory.prototype.createLanguageServiceShim = function (host) {
+ try {
+ if (this.documentRegistry === undefined) {
+ this.documentRegistry = ts.createDocumentRegistry(host.useCaseSensitiveFileNames && host.useCaseSensitiveFileNames());
+ }
+ var hostAdapter = new LanguageServiceShimHostAdapter(host);
+ var languageService = ts.createLanguageService(hostAdapter, this.documentRegistry);
+ return new LanguageServiceShimObject(this, host, languageService);
+ }
+ catch (err) {
+ logInternalError(host, err);
+ throw err;
+ }
+ };
+ TypeScriptServicesFactory.prototype.createClassifierShim = function (logger) {
+ try {
+ return new ClassifierShimObject(this, logger);
+ }
+ catch (err) {
+ logInternalError(logger, err);
+ throw err;
+ }
+ };
+ TypeScriptServicesFactory.prototype.createCoreServicesShim = function (host) {
+ try {
+ var adapter = new CoreServicesShimHostAdapter(host);
+ return new CoreServicesShimObject(this, host, adapter);
+ }
+ catch (err) {
+ logInternalError(host, err);
+ throw err;
+ }
+ };
+ TypeScriptServicesFactory.prototype.close = function () {
+ // Forget all the registered shims
+ this._shims = [];
+ this.documentRegistry = ts.createDocumentRegistry();
+ };
+ TypeScriptServicesFactory.prototype.registerShim = function (shim) {
+ this._shims.push(shim);
+ };
+ TypeScriptServicesFactory.prototype.unregisterShim = function (shim) {
+ for (var i = 0, n = this._shims.length; i < n; i++) {
+ if (this._shims[i] === shim) {
+ delete this._shims[i];
+ return;
+ }
+ }
+ throw new Error("Invalid operation");
+ };
+ return TypeScriptServicesFactory;
+ })();
+ ts.TypeScriptServicesFactory = TypeScriptServicesFactory;
+ if (typeof module !== "undefined" && module.exports) {
+ module.exports = ts;
+ }
+})(ts || (ts = {}));
+/// TODO: this is used by VS, clean this up on both sides of the interface
+/* @internal */
+var TypeScript;
+(function (TypeScript) {
+ var Services;
+ (function (Services) {
+ Services.TypeScriptServicesFactory = ts.TypeScriptServicesFactory;
+ })(Services = TypeScript.Services || (TypeScript.Services = {}));
+})(TypeScript || (TypeScript = {}));
+/* @internal */
+var toolsVersion = "1.7";
diff --git a/demo/polymer.html b/demo/polymer.html
new file mode 100644
index 0000000..0294114
--- /dev/null
+++ b/demo/polymer.html
@@ -0,0 +1,181 @@
+<!doctype html>
+<!--
+title: Polymer
+order: 1
+layout: page
+-->
+<html>
+
+<head>
+ <title>vaadin-core-elements Code Examples - Polymer Integration</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+ <link rel="import" href="common.html">
+</head>
+
+<body unresolved>
+ <section>
+ <h1>vaadin-core-elements</h1>
+ <table-of-contents select="h3" class="toc"></table-of-contents>
+ </section>
+
+ <section id="template-example">
+ <h3 id="headers">Polymer Integration (Light DOM data source)</h3>
+ <p>Static data can be easily bound to vaadin-grid light DOM cells with <a href="https://www.polymer-project.org/1.0/docs/devguide/templates.html#dom-repeat">the template repeater</a>.</p>
+ <p><strong>Note:</strong> IE/Edge doesn't support template-repeating inside a table element.</p>
+ <!--<code-example source>
+ <div>
+ <template is="dom-bind" class="my-grid-with-template" demo>
+ <vaadin-grid id="my-grid-with-template" on-selected-items-changed="onSelect">
+ <table>
+ <colgroup>
+ <col width="64">
+ <col width="100">
+ <col>
+ <col>
+ <col>
+ </colgroup>
+ <thead>
+ <tr>
+ <th>#</th>
+ <th></th>
+ <th>First Name</th>
+ <th>Last Name</th>
+ <th>Email</th>
+ </tr>
+ </thead>
+ <tbody>
+ <template is="dom-repeat" items="[[users]]">
+ <tr>
+ <td>{{index}}</td>
+ <td>
+ <img src="{{item.user.picture.thumbnail}}" style="width: 24px"></img>
+ </td>
+ <td>{{item.user.name.first}}</td>
+ <td>{{item.user.name.last}}</td>
+ <td>{{item.user.email}}</td>
+ </tr>
+ </template>
+ </tbody>
+ </table>
+ </vaadin-grid>
+ <template is="dom-if" if="{{selected}}">
+ <div class="user-image">
+ <img src="{{selected.user.picture.large}}"></img>
+ </div>
+ </template>
+ </template>
+ </div>
+ <code demo-var="template">
+ var template = template || document.querySelector('template.my-grid-with-template');
+
+ template.addEventListener('dom-change', function() {
+ // code
+ var grid = document.querySelector('#my-grid-with-template');
+
+ template.onSelect = function() {
+ if (grid.selection.selected().length === 0) {
+ template.selected = null;
+ } else {
+ template.selected = template.users[grid.selection.selected()];
+ }
+ };
+
+ getJSON('https://randomuser.me/api?results=25', function(data) {
+ template.users = data.results;
+ });
+ // end-code
+ });
+
+ if (template.render) {
+ // This is needed to make the template render on Chrome in vaadin-doc portlet
+ template.render();
+ }
+ </code>
+ </code-example>-->
+ <script>
+ // Need this hack to make this demo work on vaadin-docs site
+ // (by default JSoup, which is used at server-side parsing of the source files,
+ // doesn't allow a template tag in a table tbody)
+ var wrapper = document.querySelector('#template-example');
+
+ if (/Trident|Edge/.test(navigator.userAgent)) {
+ wrapper.parentElement.removeChild(wrapper);
+ } else {
+ wrapper.innerHTML = wrapper.innerHTML.replace(/<!--|-->/g, '');
+ }
+ </script>
+
+ </section>
+
+ <section>
+ <h3>Polymer Integration (Function data source)</h3>
+ <p>In case the data is loaded lazily or it changes dynamically a
+ function datasource is a better option. Click a row to see an enlarged user image.</p>
+ <code-example source>
+ <div>
+ <template is="dom-bind" class="my-grid-with-ds" demo>
+ <vaadin-grid id="my-grid-with-ds" items="[[items]]" size="[[size]]" on-selected-items-changed="onSelect">
+ <table>
+ <colgroup>
+ <col name="user.picture.thumbnail" width="100">
+ <col name="user.name.first">
+ <col name="user.name.last">
+ <col name="user.email">
+ </colgroup>
+ </table>
+ </vaadin-grid>
+ <template is="dom-if" if="{{selected}}">
+ <div class="user-image">
+ <img src="{{selected.user.picture.large}}"></img>
+ </div>
+ </template>
+ </template>
+ </div>
+ <code demo-var="template">
+ // code
+ var template = template || document.querySelector('template.my-grid-with-ds');
+
+ template.addEventListener('dom-change', function() {
+ var grid = document.querySelector('#my-grid-with-ds');
+
+ grid.columns[0].renderer = function(cell) {
+ cell.element.innerHTML = '&lt;img style="width: 30px" src="' + cell.data + '" /&gt;';
+ };
+
+ template.onSelect = function() {
+ if (grid.selection.selected().length === 0) {
+ template.selected = null;
+ } else {
+ grid.getItem([grid.selection.selected()], function(err, item) {
+ template.selected = item;
+ });
+ }
+ };
+
+ template.size = 100;
+ template.items = function(params, callback) {
+ var url = 'https://randomuser.me/api?index=' + params.index + '&results=' + params.count;
+ getJSON(url, function(data) {
+ callback(data.results);
+ });
+ };
+
+ });
+
+ // end-code
+
+ if (template.render) {
+ // This is needed to make the template render on Chrome in vaadin-doc portlet
+ template.render();
+ }
+ </code>
+ <code hidden>
+ document.body.removeAttribute('unresolved');
+ </code>
+ </code-example>
+ </section>
+
+</body>
+</html>
diff --git a/demo/react-demo-embed.html b/demo/react-demo-embed.html
new file mode 100644
index 0000000..bba8516
--- /dev/null
+++ b/demo/react-demo-embed.html
@@ -0,0 +1,63 @@
+<!doctype html>
+<html>
+
+<head>
+ <title>vaadin-grid Code Examples - React Integration</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+
+ <script src="js_dependencies/react.min.js"></script>
+ <script src="js_dependencies/JSXTransformer.js"></script>
+
+ <link rel="import" href="common.html">
+
+ <style>
+ body {
+ padding: 0;
+ margin: 0;
+ }
+
+ img.user-image {
+ position: absolute;
+ bottom: 0px;
+ right: 0px;
+ max-width: 33%;
+ max-height: 33%;
+ }
+ </style>
+</head>
+
+<body style="padding: 0; margin: 0;">
+ <div id="reactdemo"></div>
+
+ <script>
+ (function wait() {
+ // Wait for the polyfilled browsers to finish importing needed resources
+ if (!document.querySelector('link[href$="vaadin-grid.html"]') || !window.getJSON) {
+ return setTimeout(wait, 50);
+ }
+ // Want to avoid maintaining the React demo source in 2 places so we'll
+ // evaluate the jsx code in react.html manually here
+ var xhr = new XMLHttpRequest();
+ xhr.onreadystatechange = function() {
+ if (xhr.readyState == XMLHttpRequest.DONE) {
+ if (xhr.status == 200) {
+ var text = xhr.responseText;
+ var scriptTag = '<script type="text/jsx">';
+ var start = text.indexOf(scriptTag) + scriptTag.length;
+ var end = text.indexOf('<\/script>', start);
+ HTMLImports.whenReady(function() {
+ JSXTransformer.exec(text.substr(start, end - start));
+ });
+ }
+ }
+ };
+ xhr.open('GET', 'react.html', true);
+ xhr.send();
+ })();
+ </script>
+
+</body>
+</html>
diff --git a/demo/react.html b/demo/react.html
new file mode 100644
index 0000000..28e7deb
--- /dev/null
+++ b/demo/react.html
@@ -0,0 +1,150 @@
+<!doctype html>
+<!--
+title: React
+order: 3
+layout: page
+-->
+
+<html>
+
+<head>
+ <title>vaadin-core-elements Code Examples - React Integration</title>
+ <meta charset="UTF-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+ <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+ <link rel="import" href="common.html">
+
+</head>
+
+<body unresolved>
+
+ <h1>vaadin-core-elements</h1>
+
+ <section>
+ <h3>React Integration</h3>
+ <p>This example demonstrates using vaadin-grid with React framework.
+ As React doesn't support custom attributes for elements,
+ vaadin-grid DOM API can't be fully utilized in the initialization.</p>
+ <p>Fortunately vaadin-grid also provides corresponding JavaScript APIs.</p>
+ <p><strong>Note:</strong> vaadin-grid is not a React component. Instead, it must be
+ used with React like any JavaScript class. Please see the code example below or the
+ <a href='https://facebook.github.io/react/docs/component-specs.html'>React documentation</a>
+ for more information.</p>
+ <code-example>
+ <div demo>
+ <div id="reactdemo">
+ </div>
+ <script type="text/jsx">
+ // Create the UserGrid class
+ var UserGrid = React.createClass({
+ render: function(){
+ return (
+ <vaadin-grid></vaadin-grid>
+ )
+ },
+
+ componentDidMount: function() {
+ var _this = this;
+ var vGrid = _this.getDOMNode();
+
+ // Let the mounted <vaadin-grid> upgrade
+ (function wait() {
+ if (vGrid.selection) {
+ // Assign the data source
+ vGrid.items = _this.items;
+ vGrid.size = 1000;
+
+ // Bind selection listener
+ vGrid.addEventListener("selected-items-changed", _this.onRowSelect);
+
+ var pictureRenderer = function(cell) {
+ cell.element.innerHTML = "<img style='width: 30px' src='" + cell.data + "'></img>";
+ };
+
+ // Define columns
+ vGrid.columns = [
+ {name: "user.picture.thumbnail", width: 100, renderer: pictureRenderer},
+ {name: "user.name.first"},
+ {name: "user.name.last"},
+ {name: "user.email"},
+ ];
+
+ } else {
+ setTimeout( wait, 50 );
+ }
+ })();
+ },
+
+ items: function(params, callback) {
+ var url = 'https://randomuser.me/api?index=' + params.index + '&results=' + params.count;
+ getJSON(url, function(data) {
+ callback(data.results);
+ });
+ },
+
+ onRowSelect: function(e) {
+ var onUserSelect = this.props.onUserSelect;
+ var index = e.target.selection.selected()[0];
+ e.target.getItem(index, function(err, data) {
+ onUserSelect(err ? undefined : data.user);
+ });
+ }
+ });
+
+ var UserApp = React.createClass({
+
+ render: function() {
+ var userImage;
+ if (this.state.selected) {
+ userImage = <img className="user-image" src={this.state.selected.picture.large} ></img>;
+ }
+
+ return (
+ <div>
+ <UserGrid onUserSelect={this.userSelect}></UserGrid>
+ {userImage}
+ </div>
+ );
+ },
+
+ getInitialState: function() {
+ return {};
+ },
+
+ userSelect: function(user) {
+ this.setState({selected: user});
+ }
+ });
+
+ HTMLImports.whenReady(function(){
+ React.render(<UserApp></UserApp>, document.getElementById('reactdemo'));
+ });
+
+ </script>
+ </div>
+ <code hidden>
+ document.body.removeAttribute('unresolved');
+ </code>
+ </code-example>
+ <iframe id='react-embed' src='react-demo-embed.html' style='width: 100%; height: 550px; border: none; display: none;'></iframe>
+ <script>
+ var codeExample = document.querySelector("code-example");
+ (function wait() {
+ if (codeExample.async) {
+ codeExample.async(function() {
+ var demo = document.querySelector("div[demo]");
+ var embed = document.getElementById("react-embed");
+ demo.innerHTML = "";
+ demo.appendChild(embed);
+ embed.style.display = "block";
+ });
+ } else {
+ setTimeout( wait, 50 );
+ }
+ })();
+ </script>
+ </section>
+
+</body>
+</html>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 03:16:51 +0000