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authorTeemu Pöntelin <teemu@vaadin.com>2016-04-14 10:59:14 +0300
committerSauli Tähkäpää <sauli@vaadin.com>2016-04-27 11:40:01 +0300
commitf35b9e1f978c62e8cb5ef317cda97d917b0fe12e (patch)
tree29e2ff7d5c96c35d28e315dc6baf5e4d70ec1bcf
parentcba63bff8b27381f20afe741ad9fcdf0e919b87f (diff)
downloadvaadin-core-f35b9e1f978c62e8cb5ef317cda97d917b0fe12e.tar.gz
vaadin-core-f35b9e1f978c62e8cb5ef317cda97d917b0fe12e.zip
Replace obsolete integration example with Angular 2 pageng2-docs-rebased
Diffstat
-rw-r--r--demo/angular-demo-embed.html61
-rw-r--r--demo/angular-grid.html12
-rw-r--r--demo/angular-grid.ts48
-rw-r--r--demo/angular2.html115
-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/system.js6
-rw-r--r--demo/js_dependencies/typescript.js50339
-rw-r--r--docs/angular2.adoc203
-rw-r--r--tasks/docsite.js10
11 files changed, 211 insertions, 50814 deletions
diff --git a/demo/angular-demo-embed.html b/demo/angular-demo-embed.html
deleted file mode 100644
index 450b697..0000000
--- a/demo/angular-demo-embed.html
+++ /dev/null
@@ -1,61 +0,0 @@
-<!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;
- font-family: 'Helvetica Neue', Helvetica, Arial, 'Microsoft YaHei New', 'Microsoft Yahei', SimSun, STXihei, sans-serif;
- }
-
- 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
deleted file mode 100644
index 77869ad..0000000
--- a/demo/angular-grid.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<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
deleted file mode 100644
index e6488fb..0000000
--- a/demo/angular-grid.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-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
deleted file mode 100644
index 45db61d..0000000
--- a/demo/angular2.html
+++ /dev/null
@@ -1,115 +0,0 @@
-<!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>
-
- <section>
- <h3>Angular2 (beta1) Integration</h3>
- <p>This example demonstrates integrating <code>vaadin-core-elements</code> with an Angular 2 app.
- Notice that currently we can't declare light DOM content for a Web Component inside the component
- template so in case of <code>vaadin-grid</code> we're required to configure the columns
- trough the JS APIs instead of using the light dom <code>table</code> configuration.</p>
- <p>Click a row to see an enlarged user image or change the value of the select in
- <code>vaadin-grid</code> header to filter the results by gender.</p>
- <p><strong>Note:</strong> IE isn't currently supported.</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.async(() => 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/js_dependencies/Rx.min.js b/demo/js_dependencies/Rx.min.js
deleted file mode 100644
index 9ce4153..0000000
--- a/demo/js_dependencies/Rx.min.js
+++ /dev/null
@@ -1,211 +0,0 @@
-/**
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- http://www.apache.org/licenses/LICENSE-2.0
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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 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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 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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 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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 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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 r?r:null,this.values=i}return s(t,e),t.prototype._next=function(e){var t=this.iterators,r=this.index++;p(e)?t.push(new d(e)):"function"==typeof e[l.SymbolShim.iterator]?t.push(new f(e[l.SymbolShim.iterator]())):t.push(new v(this.destination,this,e,r))},t.prototype._complete=function(){var e=this.iterators,t=e.length;this.active=t;for(var r=0;t>r;r++){var i=e[r];i.stillUnsubscribed?i.subscribe(i,r):this.active--}},t.prototype.notifyInactive=function(){this.active--,0===this.active&&this.destination.complete()},t.prototype.checkIterators=function(){for(var e=this.iterators,t=e.length,r=this.destination,i=0;t>i;i++){var s=e[i];if("function"==typeof s.hasValue&&!s.hasValue())return}for(var o=!1,u=[],i=0;t>i;i++){var s=e[i],c=s.next();if(s.hasCompleted()&&(o=!0),c.done)return void r.complete();u.push(c.value)}var l=this.project;if(l){var c=n.tryCatch(l).apply(this,u);c===a.errorObject?r.error(a.errorObject.e):r.next(c)}else r.next(u);o&&r.complete()},t}(o.Subscriber);e.ZipSubscriber=h;var 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 u(e)},e}(),u=function(e){function t(t){e.call(this,t)}return o(t,e),t.prototype._next=function(e){e.observe(this.destination)},t}(n.Subscriber);return i.define=s,t.exports}),System.register("rxjs/operator/debounce",["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.debounce=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,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 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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 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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 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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 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r.next(s)}},t}(u.OuterSubscriber);return i.define=s,t.exports}),System.register("rxjs/operator/zip",["rxjs/operator/zip-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.zip.apply(this,e)}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/zip-static");return e.zipProto=r,i.define=s,t.exports}),System.register("rxjs/operator/zipAll",["rxjs/operator/zip-support"],!0,function(require,e,t){function r(e){return this.lift(new o.ZipOperator(e))}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/operator/zip-support");return e.zipAll=r,i.define=s,t.exports}),System.register("rxjs/util/SymbolShim",["rxjs/util/root"],!0,function(require,e,t){function r(e){var t=s(e);return n(t,e),a(t),i(t),t}function i(e){e["for"]||(e["for"]=o)}function s(e){return e.Symbol||(e.Symbol=function(e){return"@@Symbol("+e+"):"+p++}),e.Symbol}function o(e){return"@@"+e}function 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s=System.global,o=s.define;s.define=void 0;var n,a=require("rxjs/util/errorObject");return e.tryCatch=i,s.define=o,t.exports}),System.register("rxjs/util/subscribeToResult",["rxjs/Observable","rxjs/util/SymbolShim","rxjs/InnerSubscriber"],!0,function(require,e,t){function r(e,t,r,i){var s=new a.InnerSubscriber(e,r,i);if(!s.isUnsubscribed){if(t instanceof o.Observable)return t._isScalar?(s.next(t.value),void s.complete()):t.subscribe(s);if(u(t)){for(var c=0,l=t.length;l>c&&!s.isUnsubscribed;c++)s.next(t[c]);s.isUnsubscribed||s.complete()}else{if("function"==typeof t.then)return t.then(function(e){s.isUnsubscribed||(s.next(e),s.complete())},function(e){return s.error(e)}).then(null,function(e){setTimeout(function(){throw e})}),s;if("function"==typeof t[n.SymbolShim.iterator]){for(var p=0,b=t;p<b.length;p++){var h=b[p];if(s.next(h),s.isUnsubscribed)break}s.isUnsubscribed||s.complete()}else if("function"==typeof t[n.SymbolShim.observable]){var f=t[n.SymbolShim.observable]();if("function"==typeof f.subscribe)return f.subscribe(new a.InnerSubscriber(e,r,i));s.error("invalid observable")}else s.error(new TypeError("unknown type returned"))}}}var i=System.global,s=i.define;i.define=void 0;var o=require("rxjs/Observable"),n=require("rxjs/util/SymbolShim"),a=require("rxjs/InnerSubscriber"),u=Array.isArray;return e.subscribeToResult=r,i.define=s,t.exports}),System.register("rxjs/scheduler/QueueScheduler",["rxjs/scheduler/QueueAction","rxjs/scheduler/FutureAction"],!0,function(require,e,t){var r=System.global,i=r.define;r.define=void 0;var s=require("rxjs/scheduler/QueueAction"),o=require("rxjs/scheduler/FutureAction"),n=function(){function e(){this.actions=[],this.active=!1,this.scheduled=!1}return e.prototype.now=function(){return Date.now()},e.prototype.flush=function(){if(!this.active&&!this.scheduled){this.active=!0;for(var e=this.actions,t=void 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-function r(e){var t=e.source,r=e.subscriber,o=t.callbackFunc,n=t.args,a=t.scheduler,u=t.subject;if(!u){u=t.subject=new p.AsyncSubject;var b=function f(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=f.source,o=r.selector,n=r.subject;if(o){var u=c.tryCatch(o).apply(this,e);u===l.errorObject?n.add(a.schedule(s,0,{err:l.errorObject.e,subject:n})):n.add(a.schedule(i,0,{value:u,subject:n}))}else{var p=1===e.length?e[0]:e;n.add(a.schedule(i,0,{value:p,subject:n}))}};b.source=t;var h=c.tryCatch(o).apply(this,n.concat(b));h===l.errorObject&&u.error(l.errorObject.e)}this.add(u.subscribe(r))}function i(e){var t=e.value,r=e.subject;r.next(t),r.complete()}function s(e){var t=e.err,r=e.subject;r.error(t)}var o=System.global,n=o.define;o.define=void 0;var a=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)},u=require("rxjs/Observable"),c=require("rxjs/util/tryCatch"),l=require("rxjs/util/errorObject"),p=require("rxjs/subject/AsyncSubject"),b=function(e){function t(t,r,i,s){e.call(this),this.callbackFunc=t,this.selector=r,this.args=i,this.scheduler=s}return a(t,e),t.create=function(e,r,i){return void 0===r&&(r=void 0),function(){for(var s=[],o=0;o<arguments.length;o++)s[o-0]=arguments[o];return new t(e,r,s,i)}},t.prototype._subscribe=function(e){var t=this.callbackFunc,i=this.args,s=this.scheduler,o=this.subject;if(s)return e.add(s.schedule(r,0,{source:this,subscriber:e})),e;if(!o){o=this.subject=new p.AsyncSubject;var n=function u(){for(var e=[],t=0;t<arguments.length;t++)e[t-0]=arguments[t];var r=u.source,i=r.selector,s=r.subject;if(i){var o=c.tryCatch(i).apply(this,e);o===l.errorObject?s.error(l.errorObject.e):(s.next(o),s.complete())}else s.next(1===e.length?e[0]:e),s.complete()};n.source=this;var a=c.tryCatch(t).apply(this,i.concat(n));a===l.errorObject&&o.error(l.errorObject.e)}return o.subscribe(e)},t}(u.Observable);return e.BoundCallbackObservable=b,o.define=n,t.exports}),System.register("rxjs/add/observable/defer",["rxjs/Observable","rxjs/observable/defer"],!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/defer");return s.Observable.defer=o.DeferObservable.create,r.define=i,t.exports}),System.register("rxjs/observable/forkJoin",["rxjs/Observable","rxjs/Subscriber","rxjs/observable/fromPromise","rxjs/observable/empty","rxjs/util/isPromise","rxjs/util/isArray"],!0,function(require,e,t){function r(e){return null!==e}function i(e){for(var t=[],r=0;e>r;r++)t.push(null);return 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/Subscriber"),c=require("rxjs/observable/fromPromise"),l=require("rxjs/observable/empty"),p=require("rxjs/util/isPromise"),b=require("rxjs/util/isArray"),h=function(e){function t(t,r){e.call(this),this.sources=t,this.resultSelector=r}return n(t,e),t.create=function(){for(var e=[],r=0;r<arguments.length;r++)e[r-0]=arguments[r];if(null===e||0===arguments.length)return new l.EmptyObservable;var i=null;return"function"==typeof e[e.length-1]&&(i=e.pop()),1===e.length&&b.isArray(e[0])&&(e=e[0]),new t(e,i)},t.prototype._subscribe=function(e){for(var t=this.sources,r=t.length,s={completed:0,total:r,values:i(r),selector:this.resultSelector},o=0;r>o;o++){var n=t[o];p.isPromise(n)&&(n=new c.PromiseObservable(n)),n.subscribe(new f(e,o,s))}},t}(a.Observable);e.ForkJoinObservable=h;var f=function(e){function 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 u(e,this.scheduler,this.delay)},e}();e.ObserveOnOperator=a;var u=function(e){function t(t,r,i){void 0===i&&(i=0),e.call(this,t),this.scheduler=r,this.delay=i}return s(t,e),t.dispatch=function(e){var t=e.notification,r=e.destination;t.observe(r)},t.prototype.scheduleMessage=function(e){this.add(this.scheduler.schedule(t.dispatch,this.delay,new c(e,this.destination)))},t.prototype._next=function(e){this.scheduleMessage(n.Notification.createNext(e))},t.prototype._error=function(e){this.scheduleMessage(n.Notification.createError(e))},t.prototype._complete=function(){this.scheduleMessage(n.Notification.createComplete())},t}(o.Subscriber);e.ObserveOnSubscriber=u;var c=function(){function e(e,t){this.notification=e,this.destination=t}return e}();return r.define=i,t.exports}),System.register("rxjs/add/observable/fromEvent",["rxjs/Observable","rxjs/observable/fromEvent"],!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/fromEvent");return s.Observable.fromEvent=o.FromEventObservable.create,r.define=i,t.exports}),System.register("rxjs/add/observable/fromEventPattern",["rxjs/Observable","rxjs/observable/fromEventPattern"],!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/fromEventPattern");return s.Observable.fromEventPattern=o.FromEventPatternObservable.create,r.define=i,t.exports}),System.register("rxjs/scheduler/AsapAction",["rxjs/util/Immediate","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/util/Immediate"),n=require("rxjs/scheduler/QueueAction"),a=function(e){function t(){e.apply(this,arguments)}return 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;
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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 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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 t(){e.apply(this,arguments),this.observers=[],this.isUnsubscribed=!1,this.dispatching=!1,this.errorSignal=!1,this.completeSignal=!1}return s(t,e),t.prototype[c.rxSubscriber]=function(){return this},t.create=function(e,t){return new m(e,t)},t.prototype.lift=function(e){var t=new m(this,this.destination||this);return t.operator=e,t},t.prototype._subscribe=function(e){if(!e.isUnsubscribed){if(this.errorSignal)return void e.error(this.errorInstance);if(this.completeSignal)return void e.complete();if(this.isUnsubscribed)throw new Error("Cannot subscribe to a disposed Subject.");return this.observers.push(e),new u.SubjectSubscription(this,e)}},t.prototype.add=function(e){l.call(this,e)},t.prototype.remove=function(e){p.call(this,e)},t.prototype.unsubscribe=function(){this.observers=void 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){
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diff --git a/demo/js_dependencies/angular2-polyfills.min.js b/demo/js_dependencies/angular2-polyfills.min.js
deleted file mode 100644
index dee0c44..0000000
--- a/demo/js_dependencies/angular2-polyfills.min.js
+++ /dev/null
@@ -1 +0,0 @@
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e+=this.expectIdentifierOrKeywordOrString(),t=this.optionalOperator("-"),t&&(e+="-");while(t);return e.toString()},e.prototype.parseTemplateBindings=function(){for(var e=[],t=null;this.index<this.tokens.length;){var r=this.optionalKeywordVar(),n=this.expectTemplateBindingKey();r||(null==t?t=n:n=t+n[0].toUpperCase()+n.substring(1)),this.optionalCharacter(d.$COLON);var i=null,o=null;if(r)i=this.optionalOperator("=")?this.expectTemplateBindingKey():"$implicit";else if(this.next!==d.EOF&&!this.peekKeywordVar()){var a=this.inputIndex,s=this.parsePipe(),c=this.input.substring(a,this.inputIndex);o=new h.ASTWithSource(s,c,this.location)}e.push(new h.TemplateBinding(n,r,i,o)),this.optionalCharacter(d.$SEMICOLON)||this.optionalCharacter(d.$COMMA)}return e},e.prototype.error=function(e,t){void 0===t&&(t=null),l.isBlank(t)&&(t=this.index);var r=t<this.tokens.length?"at column "+(this.tokens[t].index+1)+" in":"at the end of the expression";throw new 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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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 l.PreBuiltObjects(r,D,B,L)}}D.init(x.changeDetectorFactory(D),v,T,m,y,h,g),u.isPresent(R)&&x.type===p.ViewType.COMPONENT&&R.changeDetector.addViewChild(D.changeDetector),_+=x.elementBinders.length,b+=x.textBindingCount}return y[0]},e.prototype.hydrateRootHostView=function(e,t){this._hydrateView(e,t,null,new Object,null)},e.prototype.attachViewInContainer=function(e,t,r,n,i,o){u.isBlank(r)&&(r=e,n=t),e.changeDetector.addContentChild(o.changeDetector);var a=e.viewContainers[t];u.isBlank(a)&&(a=new p.AppViewContainer,e.viewContainers[t]=a),c.ListWrapper.insert(a.views,i,o);for(var s=r.elementInjectors[n],l=o.rootElementInjectors.length-1;l>=0;l--)u.isPresent(s.parent)&&o.rootElementInjectors[l].link(s.parent);s.traverseAndSetQueriesAsDirty()},e.prototype.detachViewInContainer=function(e,t,r){var n=e.viewContainers[t],i=n.views[r];e.elementInjectors[t].traverseAndSetQueriesAsDirty(),i.changeDetector.remove(),c.ListWrapper.removeAt(n.views,r);for(var 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 t.hasLifecycleHook=n,i.define=o,r.exports}),System.register("angular2/src/core/render/view_factory",["angular2/src/facade/lang","angular2/src/core/render/view","angular2/src/core/metadata","angular2/src/facade/collection"],!0,function(e,t,r){function n(e){var t=e.styles;if(e.encapsulation===f.ViewEncapsulation.Emulated){t=h.ListWrapper.createFixedSize(e.styles.length);for(var r=0;r<e.styles.length;r++)t[r]=p.StringWrapper.replaceAll(e.styles[r],y,e.shortId)}return t}function i(e,t,r,n){var i,o=function(e,t,r){return i.dispatchRenderEvent(e,t,r)},a=new g(o,n,r);a.build(e,t);for(var s=[],c=0;c<a.fragments.length;c++)s.push(new d.DefaultRenderFragmentRef(a.fragments[c]));return i=new d.DefaultRenderView(s,a.boundTextNodes,a.boundElements,a.nativeShadowRoots,a.globalEventAdders,a.rootContentInsertionPoints)}function o(e,t,r){return function(n){return r(e,t,n)}}function a(e,t,r,n){return function(){return n.globalOn(e,t,r)}}function s(e){return 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m(e,null,e.template,e.template.commands))},e.prototype.enqueueFragmentBuilder=function(e,t,r){var n=[];this.fragments.push(n),this._builders.push(new m(e,n,t,r))},e.prototype.enqueueRootBuilder=function(e,t){var r=[];this.fragments.push(r),this._builders.push(new m(null,r,e,t))},e.prototype.consumeInplaceElement=function(){var e=this._inplaceElement;return this._inplaceElement=null,e},e.prototype.addEventListener=function(e,t,r){if(p.isPresent(t)){var n=o(e,t+":"+r,this._eventDispatcher);this.globalEventAdders.push(a(t,r,n,this.factory))}else{var n=o(e,r,this._eventDispatcher);this.factory.on(this.boundElements[e],r,n)}},e}(),m=function(){function e(e,t,r,n){this.parentComponent=e,this.fragmentRootNodes=t,this.template=r,this.cmds=n;var i=p.isPresent(t)?null:e.shadowRoot;this.parentStack=[i]}return e.prototype.build=function(e){for(var t=this.cmds,r=0;r<t.length;r++)t[r].visit(this,e)},Object.defineProperty(e.prototype,"parent",{get:function(){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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Object.defineProperty(e.prototype,"multi",{get:function(){return b.normalizeBool(this._multi)},enumerable:!0,configurable:!0}),e=y([b.CONST(),_("design:paramtypes",[Object,Object])],e)}();t.Provider=T;var A=function(e){function t(t,r){var n=r.toClass,i=r.toValue,o=r.toAlias,a=r.toFactory,s=r.deps,c=r.multi;e.call(this,t,{useClass:n,useValue:i,useExisting:o,useFactory:a,deps:s,multi:c})}return v(t,e),Object.defineProperty(t.prototype,"toClass",{get:function(){return this.useClass},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"toAlias",{get:function(){return this.useExisting},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"toFactory",{get:function(){return this.useFactory},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"toValue",{get:function(){return this.useValue},enumerable:!0,configurable:!0}),t=y([b.CONST(),_("design:paramtypes",[Object,Object])],t)}(T);t.Binding=A;var I=function(){function 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 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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 function(e,t,u,p,d,f){return r+l(e)+n+l(t)+i+l(u)+o+l(p)+a+l(d)+s+l(f)+c};case 7:return function(e,t,p,d,f,h,g){return r+l(e)+n+l(t)+i+l(p)+o+l(d)+a+l(f)+s+l(h)+c+l(g)+u};case 8:return function(e,t,d,f,h,g,m,v){return r+l(e)+n+l(t)+i+l(d)+o+l(f)+a+l(h)+s+l(g)+c+l(m)+u+l(v)+p};case 9:return function(e,t,f,h,g,m,v,y,_){return r+l(e)+n+l(t)+i+l(f)+o+l(h)+a+l(g)+s+l(m)+c+l(v)+u+l(y)+p+l(_)+d};default:throw new h.BaseException("Does not support more than 9 expressions")}}var p=System.global,d=p.define;p.define=void 0;var 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 this._addRecord(w.RecordType.KeyedRead,"keyedAccess",v.ChangeDetectionUtil.keyedAccess,[r],null,t)},e.prototype.visitChain=function(e){var t=this,r=e.expressions.map(function(e){return e.visit(t)});return this._addRecord(w.RecordType.Chain,"chain",null,r,null,0)},e.prototype.visitQuote=function(e){throw new h.BaseException("Caught uninterpreted expression at "+e.location+": "+e.uninterpretedExpression+". 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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();
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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 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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 r=this.injectorStrategy,n=r.protoStrategy;l.isPresent(n.provider0)&&n.provider0.key.token===e.selector&&(r.obj0===h.UNDEFINED&&(r.obj0=r.instantiateProvider(n.provider0,n.visibility0)),t.push(r.obj0)),l.isPresent(n.provider1)&&n.provider1.key.token===e.selector&&(r.obj1===h.UNDEFINED&&(r.obj1=r.instantiateProvider(n.provider1,n.visibility1)),t.push(r.obj1)),l.isPresent(n.provider2)&&n.provider2.key.token===e.selector&&(r.obj2===h.UNDEFINED&&(r.obj2=r.instantiateProvider(n.provider2,n.visibility2)),t.push(r.obj2)),l.isPresent(n.provider3)&&n.provider3.key.token===e.selector&&(r.obj3===h.UNDEFINED&&(r.obj3=r.instantiateProvider(n.provider3,n.visibility3)),t.push(r.obj3)),l.isPresent(n.provider4)&&n.provider4.key.token===e.selector&&(r.obj4===h.UNDEFINED&&(r.obj4=r.instantiateProvider(n.provider4,n.visibility4)),t.push(r.obj4)),l.isPresent(n.provider5)&&n.provider5.key.token===e.selector&&(r.obj5===h.UNDEFINED&&(r.obj5=r.instantiateProvider(n.provider5,n.visibility5)),t.push(r.obj5)),l.isPresent(n.provider6)&&n.provider6.key.token===e.selector&&(r.obj6===h.UNDEFINED&&(r.obj6=r.instantiateProvider(n.provider6,n.visibility6)),t.push(r.obj6)),l.isPresent(n.provider7)&&n.provider7.key.token===e.selector&&(r.obj7===h.UNDEFINED&&(r.obj7=r.instantiateProvider(n.provider7,n.visibility7)),t.push(r.obj7)),l.isPresent(n.provider8)&&n.provider8.key.token===e.selector&&(r.obj8===h.UNDEFINED&&(r.obj8=r.instantiateProvider(n.provider8,n.visibility8)),t.push(r.obj8)),l.isPresent(n.provider9)&&n.provider9.key.token===e.selector&&(r.obj9===h.UNDEFINED&&(r.obj9=r.instantiateProvider(n.provider9,n.visibility9)),t.push(r.obj9))},e}(),G=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();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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p=System.global,d=p.define;p.define=void 0;var f=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},h=this&&this.__metadata||function(e,t){return"object"==typeof Reflect&&"function"==typeof Reflect.metadata?Reflect.metadata(e,t):void 0},g=this&&this.__param||function(e,t){return function(r,n){t(r,n,e)}},m=e("angular2/src/facade/lang"),v=e("angular2/src/core/render/api"),y=e("angular2/src/core/di"),_=e("angular2/src/core/pipes/pipe_provider"),b=e("angular2/src/core/pipes/pipes"),C=e("angular2/src/core/linker/view"),w=e("angular2/src/core/linker/element_binder"),P=e("angular2/src/core/linker/element_injector"),E=e("angular2/src/core/linker/directive_resolver"),S=e("angular2/src/core/linker/view_resolver"),R=e("angular2/src/core/linker/pipe_resolver"),x=e("angular2/src/core/metadata/view"),O=e("angular2/src/core/platform_directives_and_pipes"),D=e("angular2/src/core/linker/template_commands"),T=e("angular2/src/core/render/api"),A=e("angular2/src/core/application_tokens"),I=function(){function e(e,t,r,n,i,o){this._renderer=e,this._platformPipes=t,this._directiveResolver=r,this._viewResolver=n,this._pipeResolver=i,this._appId=o,this._cache=new Map,this._nextTemplateId=0}return e.prototype.clearCache=function(){this._cache.clear()},e.prototype.createHost=function(e){var t=e.template,r=this._cache.get(t.id);if(m.isBlank(r)){var n={},i=this._appId+"-"+this._nextTemplateId++;this._renderer.registerComponentTemplate(new v.RenderComponentTemplate(t.id,i,x.ViewEncapsulation.None,t.commands,[])),r=new C.AppProtoView(t.id,t.commands,C.ViewType.HOST,!0,t.changeDetectorFactory,null,new b.ProtoPipes(n)),this._cache.set(t.id,r)}return r},e.prototype._createComponent=function(e){var t=this,r=this._cache.get(e.templateId);if(m.isBlank(r)){var n=e.directives[0],i=this._viewResolver.resolve(n),o=e.templateGetter(),a=u(o.styles,[]),s=this._appId+"-"+this._nextTemplateId++;this._renderer.registerComponentTemplate(new v.RenderComponentTemplate(o.id,s,e.encapsulation,o.commands,a));var c=this._flattenPipes(i).map(function(e){return t._bindPipe(e)});r=new 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null},e.prototype.visitBeginElement=function(e,t){return e.isBound?this._visitBeginBoundElement(e,null):this._visitBeginElement(e,null,null),null},e.prototype.visitEndElement=function(e){return this._visitEndElement()},e.prototype.visitBeginComponent=function(e,t){var r=n(this._protoViewFactory,e);return this._visitBeginBoundElement(e,r)},e.prototype.visitEndComponent=function(e){return this._visitEndElement()},e.prototype.visitEmbeddedTemplate=function(e,t){var r=i(this._protoViewFactory,e,this._protoView);return e.isMerged&&this.mergeEmbeddedViewCount++,this._visitBeginBoundElement(e,r),this._visitEndElement()},e.prototype._visitBeginBoundElement=function(e,t){m.isPresent(t)&&t.isMergable&&(this.mergeElementCount+=t.mergeInfo.elementCount,this.mergeViewCount+=t.mergeInfo.viewCount,this.mergeEmbeddedViewCount+=t.mergeInfo.embeddedViewCount);var r=o(this._directiveResolver,t,this.elementBinderStack,this.boundElementIndex,this.distanceToParentElementBinder,this.distanceToParentProtoElementInjector,e);this.elementBinders.push(r);for(var n=r.protoElementInjector,i=0;i<e.variableNameAndValues.length;i+=2)this.variableLocations.set(e.variableNameAndValues[i],this.boundElementIndex);return this.boundElementIndex++,this.mergeElementCount++,this._visitBeginElement(e,r,n)},e.prototype._visitBeginElement=function(e,t,r){return this.distanceToParentElementBinder=m.isPresent(t)?1:this.distanceToParentElementBinder+1,this.distanceToParentProtoElementInjector=m.isPresent(r)?1:this.distanceToParentProtoElementInjector+1,this.elementBinderStack.push(t),null},e.prototype._visitEndElement=function(){var e=this.elementBinderStack.pop(),t=m.isPresent(e)?e.protoElementInjector:null;return 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.EventEmitter=g,n.define=i,r.exports}),System.register("angular2/src/core/linker/dynamic_component_loader",["angular2/src/core/di","angular2/src/core/linker/compiler","angular2/src/facade/lang","angular2/src/core/linker/view_manager"],!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 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i=l(t),o=this._styleCompiler.compileComponentCodeGen(e.template),a=this._templateParser.parse(e.template.template,i,e.type.name),u=this._cdCompiler.compileComponentCodeGen(e.type,e.changeDetection,a),p=this._commandCompiler.compileComponentCodeGen(e,a,u.expressions,c);s(o.declarations,r),s(u.declarations,r),s(p.declarations,r),n.push([u.expressions[0],p.expression,o.expression])},e=d([b.Injectable(),f("design:paramtypes",[x.RuntimeMetadataResolver,R.TemplateNormalizer,S.TemplateParser,P.StyleCompiler,E.CommandCompiler,w.ChangeDetectionCompiler])],e)}();t.TemplateCompiler=T;var A=function(){function e(e,t){this.component=e,this.directives=t}return e}();return t.NormalizedComponentWithViewDirectives=A,u.define=p,r.exports}),System.register("angular2/src/compiler/runtime_compiler",["angular2/src/core/linker/compiler","angular2/src/core/linker/proto_view_factory","angular2/src/compiler/template_compiler","angular2/src/core/di"],!0,function(e,t,r){var 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n(e){for(var r in e)t.hasOwnProperty(r)||(t[r]=e[r])}function i(){return new P.ChangeDetectorGenConfig(f.assertionsEnabled(),!1,!0)}var o=System.global,a=o.define;o.define=void 0;var s=e("angular2/src/compiler/runtime_compiler"),c=e("angular2/src/compiler/template_compiler");t.TemplateCompiler=c.TemplateCompiler;var l=e("angular2/src/compiler/directive_metadata");t.CompileDirectiveMetadata=l.CompileDirectiveMetadata,t.CompileTypeMetadata=l.CompileTypeMetadata,t.CompileTemplateMetadata=l.CompileTemplateMetadata;var u=e("angular2/src/compiler/source_module");t.SourceModule=u.SourceModule,t.SourceWithImports=u.SourceWithImports;var p=e("angular2/src/core/platform_directives_and_pipes");t.PLATFORM_DIRECTIVES=p.PLATFORM_DIRECTIVES,t.PLATFORM_PIPES=p.PLATFORM_PIPES,n(e("angular2/src/compiler/template_ast"));var d=e("angular2/src/compiler/template_parser");t.TEMPLATE_TRANSFORMS=d.TEMPLATE_TRANSFORMS;var f=e("angular2/src/facade/lang"),h=e("angular2/src/core/di"),g=e("angular2/src/compiler/template_parser"),m=e("angular2/src/compiler/html_parser"),v=e("angular2/src/compiler/template_normalizer"),y=e("angular2/src/compiler/runtime_metadata"),_=e("angular2/src/compiler/change_detector_compiler"),b=e("angular2/src/compiler/style_compiler"),C=e("angular2/src/compiler/command_compiler"),w=e("angular2/src/compiler/template_compiler"),P=e("angular2/src/core/change_detection/change_detection"),E=e("angular2/src/core/linker/compiler"),S=e("angular2/src/compiler/runtime_compiler"),R=e("angular2/src/compiler/schema/element_schema_registry"),x=e("angular2/src/compiler/schema/dom_element_schema_registry"),O=e("angular2/src/compiler/url_resolver"),D=e("angular2/src/core/change_detection/change_detection");return 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diff --git a/demo/js_dependencies/system.js b/demo/js_dependencies/system.js
deleted file mode 100644
index aff9df9..0000000
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+++ /dev/null
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diff --git a/demo/js_dependencies/typescript.js b/demo/js_dependencies/typescript.js
deleted file mode 100644
index 1b65cf9..0000000
--- a/demo/js_dependencies/typescript.js
+++ /dev/null
@@ -1,50339 +0,0 @@
-//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/docs/angular2.adoc b/docs/angular2.adoc
new file mode 100644
index 0000000..86d51bf
--- /dev/null
+++ b/docs/angular2.adoc
@@ -0,0 +1,203 @@
+---
+title: Angular 2
+order: 2
+layout: page
+---
+
+[[vaadin-core-elements.angular2]]
+= Angular 2 Integration
+
+While Vaadin Elements are built using Polymer, they also contain directives to enable seamless usage within Angular 2 applications.
+This page assumes that you already have an Angular 2 application setup ready.
+If you need help with the project setup, you should follow the https://angular.io/docs/ts/latest/quickstart.html[Angular 2 Quickstart] guide.
+
+== Installation
+
+Although Angular 2 dependecies are typically installed via https://www.npmjs.com/[npm], Vaadin Elements require installation with http://bower.io[Bower].
+To install a Vaadin Core Element, you should run the following command in your project directory (replace the `[element-name]` part with the actual name of the element).
+
+[NOTE]
+Angular 2 support was introduced in `1.1.0-alpha1` versions of each element.
+Minimum requirement for the Angular version is `2.0.0-beta.16` or newer.
+
+[source,bash]
+----
+bower install --save vaadin-[element-name]#1.1.0-alpha1
+----
+
+After the Bower installation is completed, you need to add the Web Components polyfill to the `<head>` section of your `index.html` file.
+[source,html]
+----
+<script src="bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
+----
+
+The Web Components polyfill will enable usage of HTML imports in your application.
+In order to have the newly installed Vaadin element available in your templates, you need to add an import for it.
+
+[source,html]
+----
+<link rel="import" href="bower_components/vaadin-[element-name]/vaadin-[element-name].html">
+----
+
+Also the SystemJS configuration needs some modifications in order to load the modules correctly.
+Add the following `packages` entry for `bower_components` to your configuration unless it’s already present.
+
+[source,javascript]
+----
+System.config({
+ packages: {
+ 'bower_components': {
+ defaultExtension: 'js'
+ }
+ }
+});
+----
+
+Before bootstrapping your application, you need to wait for the `WebComponentsReady` event.
+This event is fired after the HTML imports are done and the custom elements are upgraded and ready to be used.
+The following example demonstrates how to wrap your bootstrap code inside the event listener.
+
+[source,javascript]
+----
+window.addEventListener('WebComponentsReady', function() {
+ System.import('app/main').then(null, console.error.bind(console));
+});
+----
+
+If you followed the Angular 2 Quickstart guide or you are otherwise using `lite-server` or `browser-sync`, create a file called `bs-config.json` in the root of your project folder with the following contents.
+
+[source,javascript]
+----
+{
+ "snippetOptions": {
+ "ignorePaths": "bower_components/**/*.html"
+ }
+}
+----
+
+Now you’re all set to use the element inside your Angular 2 application.
+
+== Importing
+
+Import the directive as follows. This example imports the [vaadinelement]#vaadin-date-picker# element, but you should replace the path with the element you’re importing.
+Also the directive name should be replaced with a camel case representation of the element name.
+
+[source,javascript]
+----
+import { VaadinDatePicker } from '../bower_components/vaadin-date-picker/directives/vaadin-date-picker';
+----
+
+Your Angular 2 component also needs to declare the usage of the directive.
+This can be done with the `directives` array of the `@Component` decorator.
+After the directive is declared, the element is available to be used in the `template` of your component.
+
+[source]
+----
+@Component({
+ selector: 'my-component',
+ template: '<vaadin-date-picker [(value)]="birthDay"></vaadin-date-picker>',
+ directives: [VaadinDatePicker]
+})
+----
+
+Notice that for Vaadin Charts, you also need to import and declare the `DataSeries` directive as follows.
+
+[source]
+----
+import { VaadinCharts, DataSeries } from '../bower_components/vaadin-charts/directives/vaadin-charts';
+
+@Component({
+ selector: 'my-component',
+ template: `
+ <vaadin-area-chart>
+ <title>Fibonacci</title>
+ <x-axis><title>Index</title></x-axis>
+ <y-axis><title>Value</title></y-axis>
+ <data-series>
+ <data>1, 1, 2, 3, 5, 8, 13, 21, 34</data>
+ </data-series>
+ </vaadin-area-chart>`,
+ directives: [VaadinCharts, DataSeries]
+})
+----
+
+== Usage
+For the most part you can use the API provided by the element.
+This API is described in the documentation of each individual element.
+Most notable changes introduced by the directives are the support for data-binding using the Angular 2 syntax and integration with the https://angular.io/docs/ts/latest/guide/forms.html[Angular forms].
+
+=== Data-Binding
+You can use Angular 2 data-binding syntax with all the properties declared in the API documentation for each element.
+Some properties also support two-way data-binding. These are marked with [propertyname]#notifies# in the API documentation.
+
+[source]
+----
+<vaadin-combo-box
+ label="My ComboBox"
+ [(value)]="myValue"
+ [items]="myItems">
+</vaadin-combo-box>
+----
+
+
+=== Form Controls
+When using input-like elements ([elementname]#vaadin-combo-box#, [elementname]#vaadin-date-picker# or [elementname]#vaadin-upload#) inside an Angular form, you should normally use the [propertyname]#ngControl# attribute to track the state and validity.
+You can use two-way data-binding with [propertyname]#ngModel# as you would with other form fields.
+Simple validation like the [propertyname]#required# validator is supported as well as defining custom validators.
+
+See the example below on how to use [elementname]#vaadin-combo-box# as a form control with data-bound [propertyname]#items# property.
+[source]
+----
+<vaadin-combo-box
+ label="My ComboBox"
+ [(ngModel)]="myValue"
+ [items]="myItems"
+ ngControl="myCombo"
+ required>
+</vaadin-combo-box>
+----
+
+=== Styling
+Due to the Shadow DOM encapsulation, applying normal CSS rules for a Vaadin Element is limited to the main element only.
+
+Therefore, in order to fully customize the appearance of Vaadin Elements, you need to use https://www.polymer-project.org/1.0/docs/devguide/styling.html#xscope-styling-details[CSS properties] and https://www.polymer-project.org/1.0/docs/devguide/styling.html#custom-css-mixins[CSS mixins].
+Unfortunately these styles cannot be applied on a component level, but instead you need to provide styles in application level and also use the `is="custom-style"` attribute.
+
+Changing the icon color of [vaadinelement]#vaadin-date-picker# to `red` could be done with the following example.
+[source]
+----
+<style is="custom-style">
+ vaadin-date-picker {
+ --vaadin-date-picker-calendar-icon: {
+ fill: red;
+ }
+ }
+</style>
+----
+
+See the documentation of each element for a list of available properties and mixins.
+
+=== Grid
+The [elementname]#vaadin-grid# element uses a `table` child element to declaratively configure columns, headers and footers.
+In case you’ll need to apply modifications to the declaratively configured [elementname]#vaadin-grid# columns, you must wait for the component to be fully initialized first.
+To do this, you should use the `grid-ready` event as follows.
+
+[source]
+----
+<vaadin-grid (grid-ready)="gridReady($event)" [items]="dataItems">
+ <table>
+ <colgroup>
+ <col>
+ </colgroup>
+ </table>
+</vaadin-grid>
+----
+[source, javascript]
+----
+gridReady(grid) {
+ // You can now configure the columns by adding a renderer function for example.
+ grid.columns[0].renderer = (cell) => {
+ cell.element.innerHTML = 'row-' + cell.row.index;
+ }
+}
+----
diff --git a/tasks/docsite.js b/tasks/docsite.js
index 38b3e65..1441c3b 100644
--- a/tasks/docsite.js
+++ b/tasks/docsite.js
@@ -42,10 +42,15 @@ gulp.task('cdn:docsite:bower_components', ['cdn:stage-bower_components'], functi
});
gulp.task('cdn:docsite:core-elements', function() {
- return gulp.src('docs/*')
+ return gulp.src(['docs/*', '!docs/angular2.adoc'])
.pipe(gulp.dest(docPath));
});
+gulp.task('cdn:docsite:core-elements-ng2-integration', function() {
+ return gulp.src('docs/angular2.adoc')
+ .pipe(gulp.dest(docPath + '/integrations'));
+});
+
gulp.task('cdn:docsite:core-elements-integrations', function() {
return getDocModifyTask('demo/**', docPath + '/integrations');
});
@@ -115,7 +120,8 @@ gulp.task('cdn:docsite:stage', ['cdn:docsite:core-elements',
'cdn:docsite:core-elements-elements',
//separate task for vaadin-grid until it uses asciidocs
'cdn:docsite:vaadin-grid',
- 'cdn:docsite:core-elements-integrations']);
+ 'cdn:docsite:core-elements-integrations',
+ 'cdn:docsite:core-elements-ng2-integration']);
gulp.task('cdn:docsite:zip', ['cdn:docsite:stage'], function() {
var src = docPath + '/**/*';
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 14:30:12 +0000