From 3b54760b51fde0e541d2b47c34475ab29a4eea79 Mon Sep 17 00:00:00 2001 From: Scott González Date: Mon, 23 Apr 2012 08:44:55 -0400 Subject: Tests: Run JSHint in unit tests, unless nojshint=1 is specified in the query string. --- external/jshint.js | 4390 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 4390 insertions(+) create mode 100644 external/jshint.js (limited to 'external/jshint.js') diff --git a/external/jshint.js b/external/jshint.js new file mode 100644 index 000000000..5bf937c4b --- /dev/null +++ b/external/jshint.js @@ -0,0 +1,4390 @@ +/*! + * JSHint, by JSHint Community. + * + * Licensed under the same slightly modified MIT license that JSLint is. + * It stops evil-doers everywhere. + * + * JSHint is a derivative work of JSLint: + * + * Copyright (c) 2002 Douglas Crockford (www.JSLint.com) + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * The Software shall be used for Good, not Evil. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * JSHint was forked from 2010-12-16 edition of JSLint. + * + */ + +/* + JSHINT is a global function. It takes two parameters. + + var myResult = JSHINT(source, option); + + The first parameter is either a string or an array of strings. If it is a + string, it will be split on '\n' or '\r'. If it is an array of strings, it + is assumed that each string represents one line. The source can be a + JavaScript text or a JSON text. + + The second parameter is an optional object of options which control the + operation of JSHINT. Most of the options are booleans: They are all + optional and have a default value of false. One of the options, predef, + can be an array of names, which will be used to declare global variables, + or an object whose keys are used as global names, with a boolean value + that determines if they are assignable. + + If it checks out, JSHINT returns true. Otherwise, it returns false. + + If false, you can inspect JSHINT.errors to find out the problems. + JSHINT.errors is an array of objects containing these members: + + { + line : The line (relative to 0) at which the lint was found + character : The character (relative to 0) at which the lint was found + reason : The problem + evidence : The text line in which the problem occurred + raw : The raw message before the details were inserted + a : The first detail + b : The second detail + c : The third detail + d : The fourth detail + } + + If a fatal error was found, a null will be the last element of the + JSHINT.errors array. + + You can request a Function Report, which shows all of the functions + and the parameters and vars that they use. This can be used to find + implied global variables and other problems. The report is in HTML and + can be inserted in an HTML . + + var myReport = JSHINT.report(limited); + + If limited is true, then the report will be limited to only errors. + + You can request a data structure which contains JSHint's results. + + var myData = JSHINT.data(); + + It returns a structure with this form: + + { + errors: [ + { + line: NUMBER, + character: NUMBER, + reason: STRING, + evidence: STRING + } + ], + functions: [ + name: STRING, + line: NUMBER, + last: NUMBER, + param: [ + STRING + ], + closure: [ + STRING + ], + var: [ + STRING + ], + exception: [ + STRING + ], + outer: [ + STRING + ], + unused: [ + STRING + ], + global: [ + STRING + ], + label: [ + STRING + ] + ], + globals: [ + STRING + ], + member: { + STRING: NUMBER + }, + unused: [ + { + name: STRING, + line: NUMBER + } + ], + implieds: [ + { + name: STRING, + line: NUMBER + } + ], + urls: [ + STRING + ], + json: BOOLEAN + } + + Empty arrays will not be included. + +*/ + +/*jshint + evil: true, nomen: false, onevar: false, regexp: false, strict: true, boss: true, + undef: true, maxlen: 100, indent:4 +*/ + +/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%", "(begin)", + "(breakage)", "(context)", "(error)", "(global)", "(identifier)", "(last)", + "(line)", "(loopage)", "(name)", "(onevar)", "(params)", "(scope)", + "(statement)", "(verb)", "*", "+", "++", "-", "--", "\/", "<", "<=", "==", + "===", ">", ">=", $, $$, $A, $F, $H, $R, $break, $continue, $w, Abstract, Ajax, + __filename, __dirname, ActiveXObject, Array, ArrayBuffer, ArrayBufferView, Audio, + Autocompleter, Assets, Boolean, Builder, Buffer, Browser, COM, CScript, Canvas, + CustomAnimation, Class, Control, Chain, Color, Cookie, Core, DataView, Date, + Debug, Draggable, Draggables, Droppables, Document, DomReady, DOMReady, Drag, + E, Enumerator, Enumerable, Element, Elements, Error, Effect, EvalError, Event, + Events, FadeAnimation, Field, Flash, Float32Array, Float64Array, Form, + FormField, Frame, FormData, Function, Fx, GetObject, Group, Hash, HotKey, + HTMLElement, HTMLAnchorElement, HTMLBaseElement, HTMLBlockquoteElement, + HTMLBodyElement, HTMLBRElement, HTMLButtonElement, HTMLCanvasElement, HTMLDirectoryElement, + HTMLDivElement, HTMLDListElement, HTMLFieldSetElement, + HTMLFontElement, HTMLFormElement, HTMLFrameElement, HTMLFrameSetElement, + HTMLHeadElement, HTMLHeadingElement, HTMLHRElement, HTMLHtmlElement, + HTMLIFrameElement, HTMLImageElement, HTMLInputElement, HTMLIsIndexElement, + HTMLLabelElement, HTMLLayerElement, HTMLLegendElement, HTMLLIElement, + HTMLLinkElement, HTMLMapElement, HTMLMenuElement, HTMLMetaElement, + HTMLModElement, HTMLObjectElement, HTMLOListElement, HTMLOptGroupElement, + HTMLOptionElement, HTMLParagraphElement, HTMLParamElement, HTMLPreElement, + HTMLQuoteElement, HTMLScriptElement, HTMLSelectElement, HTMLStyleElement, + HtmlTable, HTMLTableCaptionElement, HTMLTableCellElement, HTMLTableColElement, + HTMLTableElement, HTMLTableRowElement, HTMLTableSectionElement, + HTMLTextAreaElement, HTMLTitleElement, HTMLUListElement, HTMLVideoElement, + Iframe, IframeShim, Image, Int16Array, Int32Array, Int8Array, + Insertion, InputValidator, JSON, Keyboard, Locale, LN10, LN2, LOG10E, LOG2E, + MAX_VALUE, MIN_VALUE, Mask, Math, MenuItem, MoveAnimation, MooTools, Native, + NEGATIVE_INFINITY, Number, Object, ObjectRange, Option, Options, OverText, PI, + POSITIVE_INFINITY, PeriodicalExecuter, Point, Position, Prototype, RangeError, + Rectangle, ReferenceError, RegExp, ResizeAnimation, Request, RotateAnimation, + SQRT1_2, SQRT2, ScrollBar, ScriptEngine, ScriptEngineBuildVersion, + ScriptEngineMajorVersion, ScriptEngineMinorVersion, Scriptaculous, Scroller, + Slick, Slider, Selector, SharedWorker, String, Style, SyntaxError, Sortable, Sortables, + SortableObserver, Sound, Spinner, System, Swiff, Text, TextArea, Template, + Timer, Tips, Type, TypeError, Toggle, Try, "use strict", unescape, URI, URIError, URL, + VBArray, WSH, WScript, XDomainRequest, Web, Window, XMLDOM, XMLHttpRequest, XPathEvaluator, + XPathException, XPathExpression, XPathNamespace, XPathNSResolver, XPathResult, "\\", a, + addEventListener, address, alert, apply, applicationCache, arguments, arity, + asi, b, basic, basicToken, bitwise, block, blur, boolOptions, boss, browser, c, call, callee, + caller, cases, charAt, charCodeAt, character, clearInterval, clearTimeout, + close, closed, closure, comment, condition, confirm, console, constructor, + content, couch, create, css, curly, d, data, datalist, dd, debug, decodeURI, + decodeURIComponent, defaultStatus, defineClass, deserialize, devel, document, + dojo, dijit, dojox, define, else, emit, encodeURI, encodeURIComponent, + entityify, eqeqeq, eqnull, errors, es5, escape, esnext, eval, event, evidence, evil, + ex, exception, exec, exps, expr, exports, FileReader, first, floor, focus, + forin, fragment, frames, from, fromCharCode, fud, funcscope, funct, function, functions, + g, gc, getComputedStyle, getRow, getter, getterToken, GLOBAL, global, globals, globalstrict, + hasOwnProperty, help, history, i, id, identifier, immed, implieds, importPackage, include, + indent, indexOf, init, ins, instanceOf, isAlpha, isApplicationRunning, isArray, + isDigit, isFinite, isNaN, iterator, java, join, jshint, + JSHINT, json, jquery, jQuery, keys, label, labelled, last, lastsemic, laxbreak, laxcomma, + latedef, lbp, led, left, length, line, load, loadClass, localStorage, location, + log, loopfunc, m, match, maxerr, maxlen, member,message, meta, module, moveBy, + moveTo, mootools, multistr, name, navigator, new, newcap, noarg, node, noempty, nomen, + nonew, nonstandard, nud, onbeforeunload, onblur, onerror, onevar, onecase, onfocus, + onload, onresize, onunload, open, openDatabase, openURL, opener, opera, options, outer, param, + parent, parseFloat, parseInt, passfail, plusplus, predef, print, process, prompt, + proto, prototype, prototypejs, provides, push, quit, range, raw, reach, reason, regexp, + readFile, readUrl, regexdash, removeEventListener, replace, report, require, + reserved, resizeBy, resizeTo, resolvePath, resumeUpdates, respond, rhino, right, + runCommand, scroll, screen, scripturl, scrollBy, scrollTo, scrollbar, search, seal, + send, serialize, sessionStorage, setInterval, setTimeout, setter, setterToken, shift, slice, + smarttabs, sort, spawn, split, stack, status, start, strict, sub, substr, supernew, shadow, + supplant, sum, sync, test, toLowerCase, toString, toUpperCase, toint32, token, top, trailing, + type, typeOf, Uint16Array, Uint32Array, Uint8Array, undef, undefs, unused, urls, validthis, + value, valueOf, var, version, WebSocket, white, window, Worker, wsh*/ + +/*global exports: false */ + +// We build the application inside a function so that we produce only a single +// global variable. That function will be invoked immediately, and its return +// value is the JSHINT function itself. + +var JSHINT = (function () { + "use strict"; + + var anonname, // The guessed name for anonymous functions. + +// These are operators that should not be used with the ! operator. + + bang = { + '<' : true, + '<=' : true, + '==' : true, + '===': true, + '!==': true, + '!=' : true, + '>' : true, + '>=' : true, + '+' : true, + '-' : true, + '*' : true, + '/' : true, + '%' : true + }, + + // These are the JSHint boolean options. + boolOptions = { + asi : true, // if automatic semicolon insertion should be tolerated + bitwise : true, // if bitwise operators should not be allowed + boss : true, // if advanced usage of assignments should be allowed + browser : true, // if the standard browser globals should be predefined + couch : true, // if CouchDB globals should be predefined + curly : true, // if curly braces around all blocks should be required + debug : true, // if debugger statements should be allowed + devel : true, // if logging globals should be predefined (console, + // alert, etc.) + dojo : true, // if Dojo Toolkit globals should be predefined + eqeqeq : true, // if === should be required + eqnull : true, // if == null comparisons should be tolerated + es5 : true, // if ES5 syntax should be allowed + esnext : true, // if es.next specific syntax should be allowed + evil : true, // if eval should be allowed + expr : true, // if ExpressionStatement should be allowed as Programs + forin : true, // if for in statements must filter + funcscope : true, // if only function scope should be used for scope tests + globalstrict: true, // if global "use strict"; should be allowed (also + // enables 'strict') + immed : true, // if immediate invocations must be wrapped in parens + iterator : true, // if the `__iterator__` property should be allowed + jquery : true, // if jQuery globals should be predefined + lastsemic : true, // if semicolons may be ommitted for the trailing + // statements inside of a one-line blocks. + latedef : true, // if the use before definition should not be tolerated + laxbreak : true, // if line breaks should not be checked + laxcomma : true, // if line breaks should not be checked around commas + loopfunc : true, // if functions should be allowed to be defined within + // loops + mootools : true, // if MooTools globals should be predefined + multistr : true, // allow multiline strings + newcap : true, // if constructor names must be capitalized + noarg : true, // if arguments.caller and arguments.callee should be + // disallowed + node : true, // if the Node.js environment globals should be + // predefined + noempty : true, // if empty blocks should be disallowed + nonew : true, // if using `new` for side-effects should be disallowed + nonstandard : true, // if non-standard (but widely adopted) globals should + // be predefined + nomen : true, // if names should be checked + onevar : true, // if only one var statement per function should be + // allowed + onecase : true, // if one case switch statements should be allowed + passfail : true, // if the scan should stop on first error + plusplus : true, // if increment/decrement should not be allowed + proto : true, // if the `__proto__` property should be allowed + prototypejs : true, // if Prototype and Scriptaculous globals should be + // predefined + regexdash : true, // if unescaped first/last dash (-) inside brackets + // should be tolerated + regexp : true, // if the . should not be allowed in regexp literals + rhino : true, // if the Rhino environment globals should be predefined + undef : true, // if variables should be declared before used + scripturl : true, // if script-targeted URLs should be tolerated + shadow : true, // if variable shadowing should be tolerated + smarttabs : true, // if smarttabs should be tolerated + // (http://www.emacswiki.org/emacs/SmartTabs) + strict : true, // require the "use strict"; pragma + sub : true, // if all forms of subscript notation are tolerated + supernew : true, // if `new function () { ... };` and `new Object;` + // should be tolerated + trailing : true, // if trailing whitespace rules apply + validthis : true, // if 'this' inside a non-constructor function is valid. + // This is a function scoped option only. + white : true, // if strict whitespace rules apply + wsh : true // if the Windows Scripting Host environment globals + // should be predefined + }, + + // browser contains a set of global names which are commonly provided by a + // web browser environment. + browser = { + ArrayBuffer : false, + ArrayBufferView : false, + Audio : false, + addEventListener : false, + applicationCache : false, + blur : false, + clearInterval : false, + clearTimeout : false, + close : false, + closed : false, + DataView : false, + defaultStatus : false, + document : false, + event : false, + FileReader : false, + Float32Array : false, + Float64Array : false, + FormData : false, + focus : false, + frames : false, + getComputedStyle : false, + HTMLElement : false, + HTMLAnchorElement : false, + HTMLBaseElement : false, + HTMLBlockquoteElement : false, + HTMLBodyElement : false, + HTMLBRElement : false, + HTMLButtonElement : false, + HTMLCanvasElement : false, + HTMLDirectoryElement : false, + HTMLDivElement : false, + HTMLDListElement : false, + HTMLFieldSetElement : false, + HTMLFontElement : false, + HTMLFormElement : false, + HTMLFrameElement : false, + HTMLFrameSetElement : false, + HTMLHeadElement : false, + HTMLHeadingElement : false, + HTMLHRElement : false, + HTMLHtmlElement : false, + HTMLIFrameElement : false, + HTMLImageElement : false, + HTMLInputElement : false, + HTMLIsIndexElement : false, + HTMLLabelElement : false, + HTMLLayerElement : false, + HTMLLegendElement : false, + HTMLLIElement : false, + HTMLLinkElement : false, + HTMLMapElement : false, + HTMLMenuElement : false, + HTMLMetaElement : false, + HTMLModElement : false, + HTMLObjectElement : false, + HTMLOListElement : false, + HTMLOptGroupElement : false, + HTMLOptionElement : false, + HTMLParagraphElement : false, + HTMLParamElement : false, + HTMLPreElement : false, + HTMLQuoteElement : false, + HTMLScriptElement : false, + HTMLSelectElement : false, + HTMLStyleElement : false, + HTMLTableCaptionElement : false, + HTMLTableCellElement : false, + HTMLTableColElement : false, + HTMLTableElement : false, + HTMLTableRowElement : false, + HTMLTableSectionElement : false, + HTMLTextAreaElement : false, + HTMLTitleElement : false, + HTMLUListElement : false, + HTMLVideoElement : false, + history : false, + Int16Array : false, + Int32Array : false, + Int8Array : false, + Image : false, + length : false, + localStorage : false, + location : false, + moveBy : false, + moveTo : false, + name : false, + navigator : false, + onbeforeunload : true, + onblur : true, + onerror : true, + onfocus : true, + onload : true, + onresize : true, + onunload : true, + open : false, + openDatabase : false, + opener : false, + Option : false, + parent : false, + print : false, + removeEventListener : false, + resizeBy : false, + resizeTo : false, + screen : false, + scroll : false, + scrollBy : false, + scrollTo : false, + sessionStorage : false, + setInterval : false, + setTimeout : false, + SharedWorker : false, + status : false, + top : false, + Uint16Array : false, + Uint32Array : false, + Uint8Array : false, + WebSocket : false, + window : false, + Worker : false, + XMLHttpRequest : false, + XPathEvaluator : false, + XPathException : false, + XPathExpression : false, + XPathNamespace : false, + XPathNSResolver : false, + XPathResult : false + }, + + couch = { + "require" : false, + respond : false, + getRow : false, + emit : false, + send : false, + start : false, + sum : false, + log : false, + exports : false, + module : false, + provides : false + }, + + devel = { + alert : false, + confirm : false, + console : false, + Debug : false, + opera : false, + prompt : false + }, + + dojo = { + dojo : false, + dijit : false, + dojox : false, + define : false, + "require" : false + }, + + escapes = { + '\b': '\\b', + '\t': '\\t', + '\n': '\\n', + '\f': '\\f', + '\r': '\\r', + '"' : '\\"', + '/' : '\\/', + '\\': '\\\\' + }, + + funct, // The current function + + functionicity = [ + 'closure', 'exception', 'global', 'label', + 'outer', 'unused', 'var' + ], + + functions, // All of the functions + + global, // The global scope + implied, // Implied globals + inblock, + indent, + jsonmode, + + jquery = { + '$' : false, + jQuery : false + }, + + lines, + lookahead, + member, + membersOnly, + + mootools = { + '$' : false, + '$$' : false, + Assets : false, + Browser : false, + Chain : false, + Class : false, + Color : false, + Cookie : false, + Core : false, + Document : false, + DomReady : false, + DOMReady : false, + Drag : false, + Element : false, + Elements : false, + Event : false, + Events : false, + Fx : false, + Group : false, + Hash : false, + HtmlTable : false, + Iframe : false, + IframeShim : false, + InputValidator : false, + instanceOf : false, + Keyboard : false, + Locale : false, + Mask : false, + MooTools : false, + Native : false, + Options : false, + OverText : false, + Request : false, + Scroller : false, + Slick : false, + Slider : false, + Sortables : false, + Spinner : false, + Swiff : false, + Tips : false, + Type : false, + typeOf : false, + URI : false, + Window : false + }, + + nexttoken, + + node = { + __filename : false, + __dirname : false, + Buffer : false, + console : false, + exports : false, + GLOBAL : false, + global : false, + module : false, + process : false, + require : false, + setTimeout : false, + clearTimeout : false, + setInterval : false, + clearInterval : false + }, + + noreach, + option, + predefined, // Global variables defined by option + prereg, + prevtoken, + + prototypejs = { + '$' : false, + '$$' : false, + '$A' : false, + '$F' : false, + '$H' : false, + '$R' : false, + '$break' : false, + '$continue' : false, + '$w' : false, + Abstract : false, + Ajax : false, + Class : false, + Enumerable : false, + Element : false, + Event : false, + Field : false, + Form : false, + Hash : false, + Insertion : false, + ObjectRange : false, + PeriodicalExecuter: false, + Position : false, + Prototype : false, + Selector : false, + Template : false, + Toggle : false, + Try : false, + Autocompleter : false, + Builder : false, + Control : false, + Draggable : false, + Draggables : false, + Droppables : false, + Effect : false, + Sortable : false, + SortableObserver : false, + Sound : false, + Scriptaculous : false + }, + + rhino = { + defineClass : false, + deserialize : false, + gc : false, + help : false, + importPackage: false, + "java" : false, + load : false, + loadClass : false, + print : false, + quit : false, + readFile : false, + readUrl : false, + runCommand : false, + seal : false, + serialize : false, + spawn : false, + sync : false, + toint32 : false, + version : false + }, + + scope, // The current scope + stack, + + // standard contains the global names that are provided by the + // ECMAScript standard. + standard = { + Array : false, + Boolean : false, + Date : false, + decodeURI : false, + decodeURIComponent : false, + encodeURI : false, + encodeURIComponent : false, + Error : false, + 'eval' : false, + EvalError : false, + Function : false, + hasOwnProperty : false, + isFinite : false, + isNaN : false, + JSON : false, + Math : false, + Number : false, + Object : false, + parseInt : false, + parseFloat : false, + RangeError : false, + ReferenceError : false, + RegExp : false, + String : false, + SyntaxError : false, + TypeError : false, + URIError : false + }, + + // widely adopted global names that are not part of ECMAScript standard + nonstandard = { + escape : false, + unescape : false + }, + + standard_member = { + E : true, + LN2 : true, + LN10 : true, + LOG2E : true, + LOG10E : true, + MAX_VALUE : true, + MIN_VALUE : true, + NEGATIVE_INFINITY : true, + PI : true, + POSITIVE_INFINITY : true, + SQRT1_2 : true, + SQRT2 : true + }, + + directive, + syntax = {}, + tab, + token, + urls, + useESNextSyntax, + warnings, + + wsh = { + ActiveXObject : true, + Enumerator : true, + GetObject : true, + ScriptEngine : true, + ScriptEngineBuildVersion : true, + ScriptEngineMajorVersion : true, + ScriptEngineMinorVersion : true, + VBArray : true, + WSH : true, + WScript : true, + XDomainRequest : true + }; + + // Regular expressions. Some of these are stupidly long. + var ax, cx, tx, nx, nxg, lx, ix, jx, ft; + (function () { + /*jshint maxlen:300 */ + + // unsafe comment or string + ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i; + + // unsafe characters that are silently deleted by one or more browsers + cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + + // token + tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/(\*(jshint|jslint|members?|global)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/; + + // characters in strings that need escapement + nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; + + // star slash + lx = /\*\/|\/\*/; + + // identifier + ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/; + + // javascript url + jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; + + // catches /* falls through */ comments + ft = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/; + }()); + + function F() {} // Used by Object.create + + function is_own(object, name) { + +// The object.hasOwnProperty method fails when the property under consideration +// is named 'hasOwnProperty'. So we have to use this more convoluted form. + + return Object.prototype.hasOwnProperty.call(object, name); + } + +// Provide critical ES5 functions to ES3. + + if (typeof Array.isArray !== 'function') { + Array.isArray = function (o) { + return Object.prototype.toString.apply(o) === '[object Array]'; + }; + } + + if (typeof Object.create !== 'function') { + Object.create = function (o) { + F.prototype = o; + return new F(); + }; + } + + if (typeof Object.keys !== 'function') { + Object.keys = function (o) { + var a = [], k; + for (k in o) { + if (is_own(o, k)) { + a.push(k); + } + } + return a; + }; + } + +// Non standard methods + + if (typeof String.prototype.entityify !== 'function') { + String.prototype.entityify = function () { + return this + .replace(/&/g, '&') + .replace(//g, '>'); + }; + } + + if (typeof String.prototype.isAlpha !== 'function') { + String.prototype.isAlpha = function () { + return (this >= 'a' && this <= 'z\uffff') || + (this >= 'A' && this <= 'Z\uffff'); + }; + } + + if (typeof String.prototype.isDigit !== 'function') { + String.prototype.isDigit = function () { + return (this >= '0' && this <= '9'); + }; + } + + if (typeof String.prototype.supplant !== 'function') { + String.prototype.supplant = function (o) { + return this.replace(/\{([^{}]*)\}/g, function (a, b) { + var r = o[b]; + return typeof r === 'string' || typeof r === 'number' ? r : a; + }); + }; + } + + if (typeof String.prototype.name !== 'function') { + String.prototype.name = function () { + +// If the string looks like an identifier, then we can return it as is. +// If the string contains no control characters, no quote characters, and no +// backslash characters, then we can simply slap some quotes around it. +// Otherwise we must also replace the offending characters with safe +// sequences. + + if (ix.test(this)) { + return this; + } + if (nx.test(this)) { + return '"' + this.replace(nxg, function (a) { + var c = escapes[a]; + if (c) { + return c; + } + return '\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4); + }) + '"'; + } + return '"' + this + '"'; + }; + } + + + function combine(t, o) { + var n; + for (n in o) { + if (is_own(o, n)) { + t[n] = o[n]; + } + } + } + + function assume() { + if (option.couch) { + combine(predefined, couch); + } + + if (option.rhino) { + combine(predefined, rhino); + } + + if (option.prototypejs) { + combine(predefined, prototypejs); + } + + if (option.node) { + combine(predefined, node); + } + + if (option.devel) { + combine(predefined, devel); + } + + if (option.dojo) { + combine(predefined, dojo); + } + + if (option.browser) { + combine(predefined, browser); + } + + if (option.nonstandard) { + combine(predefined, nonstandard); + } + + if (option.jquery) { + combine(predefined, jquery); + } + + if (option.mootools) { + combine(predefined, mootools); + } + + if (option.wsh) { + combine(predefined, wsh); + } + + if (option.esnext) { + useESNextSyntax(); + } + + if (option.globalstrict && option.strict !== false) { + option.strict = true; + } + } + + + // Produce an error warning. + function quit(message, line, chr) { + var percentage = Math.floor((line / lines.length) * 100); + + throw { + name: 'JSHintError', + line: line, + character: chr, + message: message + " (" + percentage + "% scanned).", + raw: message + }; + } + + function isundef(scope, m, t, a) { + return JSHINT.undefs.push([scope, m, t, a]); + } + + function warning(m, t, a, b, c, d) { + var ch, l, w; + t = t || nexttoken; + if (t.id === '(end)') { // `~ + t = token; + } + l = t.line || 0; + ch = t.from || 0; + w = { + id: '(error)', + raw: m, + evidence: lines[l - 1] || '', + line: l, + character: ch, + a: a, + b: b, + c: c, + d: d + }; + w.reason = m.supplant(w); + JSHINT.errors.push(w); + if (option.passfail) { + quit('Stopping. ', l, ch); + } + warnings += 1; + if (warnings >= option.maxerr) { + quit("Too many errors.", l, ch); + } + return w; + } + + function warningAt(m, l, ch, a, b, c, d) { + return warning(m, { + line: l, + from: ch + }, a, b, c, d); + } + + function error(m, t, a, b, c, d) { + var w = warning(m, t, a, b, c, d); + } + + function errorAt(m, l, ch, a, b, c, d) { + return error(m, { + line: l, + from: ch + }, a, b, c, d); + } + + + +// lexical analysis and token construction + + var lex = (function lex() { + var character, from, line, s; + +// Private lex methods + + function nextLine() { + var at, + tw; // trailing whitespace check + + if (line >= lines.length) + return false; + + character = 1; + s = lines[line]; + line += 1; + + // If smarttabs option is used check for spaces followed by tabs only. + // Otherwise check for any occurence of mixed tabs and spaces. + if (option.smarttabs) + at = s.search(/ \t/); + else + at = s.search(/ \t|\t /); + + if (at >= 0) + warningAt("Mixed spaces and tabs.", line, at + 1); + + s = s.replace(/\t/g, tab); + at = s.search(cx); + + if (at >= 0) + warningAt("Unsafe character.", line, at); + + if (option.maxlen && option.maxlen < s.length) + warningAt("Line too long.", line, s.length); + + // Check for trailing whitespaces + tw = /\s+$/.test(s); + if (option.trailing && tw && !/^\s+$/.test(s)) { + warningAt("Trailing whitespace.", line, tw); + } + return true; + } + +// Produce a token object. The token inherits from a syntax symbol. + + function it(type, value) { + var i, t; + if (type === '(color)' || type === '(range)') { + t = {type: type}; + } else if (type === '(punctuator)' || + (type === '(identifier)' && is_own(syntax, value))) { + t = syntax[value] || syntax['(error)']; + } else { + t = syntax[type]; + } + t = Object.create(t); + if (type === '(string)' || type === '(range)') { + if (!option.scripturl && jx.test(value)) { + warningAt("Script URL.", line, from); + } + } + if (type === '(identifier)') { + t.identifier = true; + if (value === '__proto__' && !option.proto) { + warningAt("The '{a}' property is deprecated.", + line, from, value); + } else if (value === '__iterator__' && !option.iterator) { + warningAt("'{a}' is only available in JavaScript 1.7.", + line, from, value); + } else if (option.nomen && (value.charAt(0) === '_' || + value.charAt(value.length - 1) === '_')) { + if (!option.node || token.id === '.' || + (value !== '__dirname' && value !== '__filename')) { + warningAt("Unexpected {a} in '{b}'.", line, from, "dangling '_'", value); + } + } + } + t.value = value; + t.line = line; + t.character = character; + t.from = from; + i = t.id; + if (i !== '(endline)') { + prereg = i && + (('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) || + i === 'return' || + i === 'case'); + } + return t; + } + + // Public lex methods + return { + init: function (source) { + if (typeof source === 'string') { + lines = source + .replace(/\r\n/g, '\n') + .replace(/\r/g, '\n') + .split('\n'); + } else { + lines = source; + } + + // If the first line is a shebang (#!), make it a blank and move on. + // Shebangs are used by Node scripts. + if (lines[0] && lines[0].substr(0, 2) === '#!') + lines[0] = ''; + + line = 0; + nextLine(); + from = 1; + }, + + range: function (begin, end) { + var c, value = ''; + from = character; + if (s.charAt(0) !== begin) { + errorAt("Expected '{a}' and instead saw '{b}'.", + line, character, begin, s.charAt(0)); + } + for (;;) { + s = s.slice(1); + character += 1; + c = s.charAt(0); + switch (c) { + case '': + errorAt("Missing '{a}'.", line, character, c); + break; + case end: + s = s.slice(1); + character += 1; + return it('(range)', value); + case '\\': + warningAt("Unexpected '{a}'.", line, character, c); + } + value += c; + } + + }, + + + // token -- this is called by advance to get the next token + token: function () { + var b, c, captures, d, depth, high, i, l, low, q, t, isLiteral, isInRange; + + function match(x) { + var r = x.exec(s), r1; + if (r) { + l = r[0].length; + r1 = r[1]; + c = r1.charAt(0); + s = s.substr(l); + from = character + l - r1.length; + character += l; + return r1; + } + } + + function string(x) { + var c, j, r = '', allowNewLine = false; + + if (jsonmode && x !== '"') { + warningAt("Strings must use doublequote.", + line, character); + } + + function esc(n) { + var i = parseInt(s.substr(j + 1, n), 16); + j += n; + if (i >= 32 && i <= 126 && + i !== 34 && i !== 92 && i !== 39) { + warningAt("Unnecessary escapement.", line, character); + } + character += n; + c = String.fromCharCode(i); + } + j = 0; +unclosedString: for (;;) { + while (j >= s.length) { + j = 0; + + var cl = line, cf = from; + if (!nextLine()) { + errorAt("Unclosed string.", cl, cf); + break unclosedString; + } + + if (allowNewLine) { + allowNewLine = false; + } else { + warningAt("Unclosed string.", cl, cf); + } + } + c = s.charAt(j); + if (c === x) { + character += 1; + s = s.substr(j + 1); + return it('(string)', r, x); + } + if (c < ' ') { + if (c === '\n' || c === '\r') { + break; + } + warningAt("Control character in string: {a}.", + line, character + j, s.slice(0, j)); + } else if (c === '\\') { + j += 1; + character += 1; + c = s.charAt(j); + switch (c) { + case '\\': + case '"': + case '/': + break; + case '\'': + if (jsonmode) { + warningAt("Avoid \\'.", line, character); + } + break; + case 'b': + c = '\b'; + break; + case 'f': + c = '\f'; + break; + case 'n': + c = '\n'; + break; + case 'r': + c = '\r'; + break; + case 't': + c = '\t'; + break; + case 'u': + esc(4); + break; + case 'v': + if (jsonmode) { + warningAt("Avoid \\v.", line, character); + } + c = '\v'; + break; + case 'x': + if (jsonmode) { + warningAt("Avoid \\x-.", line, character); + } + esc(2); + break; + case '': + // last character is escape character + // always allow new line if escaped, but show + // warning if option is not set + allowNewLine = true; + if (option.multistr) { + if (jsonmode) { + warningAt("Avoid EOL escapement.", line, character); + } + c = ''; + character -= 1; + break; + } + warningAt("Bad escapement of EOL. Use option multistr if needed.", + line, character); + break; + default: + warningAt("Bad escapement.", line, character); + } + } + r += c; + character += 1; + j += 1; + } + } + + for (;;) { + if (!s) { + return it(nextLine() ? '(endline)' : '(end)', ''); + } + t = match(tx); + if (!t) { + t = ''; + c = ''; + while (s && s < '!') { + s = s.substr(1); + } + if (s) { + errorAt("Unexpected '{a}'.", line, character, s.substr(0, 1)); + s = ''; + } + } else { + + // identifier + + if (c.isAlpha() || c === '_' || c === '$') { + return it('(identifier)', t); + } + + // number + + if (c.isDigit()) { + if (!isFinite(Number(t))) { + warningAt("Bad number '{a}'.", + line, character, t); + } + if (s.substr(0, 1).isAlpha()) { + warningAt("Missing space after '{a}'.", + line, character, t); + } + if (c === '0') { + d = t.substr(1, 1); + if (d.isDigit()) { + if (token.id !== '.') { + warningAt("Don't use extra leading zeros '{a}'.", + line, character, t); + } + } else if (jsonmode && (d === 'x' || d === 'X')) { + warningAt("Avoid 0x-. '{a}'.", + line, character, t); + } + } + if (t.substr(t.length - 1) === '.') { + warningAt( +"A trailing decimal point can be confused with a dot '{a}'.", line, character, t); + } + return it('(number)', t); + } + switch (t) { + + // string + + case '"': + case "'": + return string(t); + + // // comment + + case '//': + s = ''; + token.comment = true; + break; + + // /* comment + + case '/*': + for (;;) { + i = s.search(lx); + if (i >= 0) { + break; + } + if (!nextLine()) { + errorAt("Unclosed comment.", line, character); + } + } + character += i + 2; + if (s.substr(i, 1) === '/') { + errorAt("Nested comment.", line, character); + } + s = s.substr(i + 2); + token.comment = true; + break; + + // /*members /*jshint /*global + + case '/*members': + case '/*member': + case '/*jshint': + case '/*jslint': + case '/*global': + case '*/': + return { + value: t, + type: 'special', + line: line, + character: character, + from: from + }; + + case '': + break; + // / + case '/': + if (token.id === '/=') { + errorAt("A regular expression literal can be confused with '/='.", + line, from); + } + if (prereg) { + depth = 0; + captures = 0; + l = 0; + for (;;) { + b = true; + c = s.charAt(l); + l += 1; + switch (c) { + case '': + errorAt("Unclosed regular expression.", line, from); + return quit('Stopping.', line, from); + case '/': + if (depth > 0) { + warningAt("{a} unterminated regular expression " + + "group(s).", line, from + l, depth); + } + c = s.substr(0, l - 1); + q = { + g: true, + i: true, + m: true + }; + while (q[s.charAt(l)] === true) { + q[s.charAt(l)] = false; + l += 1; + } + character += l; + s = s.substr(l); + q = s.charAt(0); + if (q === '/' || q === '*') { + errorAt("Confusing regular expression.", + line, from); + } + return it('(regexp)', c); + case '\\': + c = s.charAt(l); + if (c < ' ') { + warningAt( +"Unexpected control character in regular expression.", line, from + l); + } else if (c === '<') { + warningAt( +"Unexpected escaped character '{a}' in regular expression.", line, from + l, c); + } + l += 1; + break; + case '(': + depth += 1; + b = false; + if (s.charAt(l) === '?') { + l += 1; + switch (s.charAt(l)) { + case ':': + case '=': + case '!': + l += 1; + break; + default: + warningAt( +"Expected '{a}' and instead saw '{b}'.", line, from + l, ':', s.charAt(l)); + } + } else { + captures += 1; + } + break; + case '|': + b = false; + break; + case ')': + if (depth === 0) { + warningAt("Unescaped '{a}'.", + line, from + l, ')'); + } else { + depth -= 1; + } + break; + case ' ': + q = 1; + while (s.charAt(l) === ' ') { + l += 1; + q += 1; + } + if (q > 1) { + warningAt( +"Spaces are hard to count. Use {{a}}.", line, from + l, q); + } + break; + case '[': + c = s.charAt(l); + if (c === '^') { + l += 1; + if (option.regexp) { + warningAt("Insecure '{a}'.", + line, from + l, c); + } else if (s.charAt(l) === ']') { + errorAt("Unescaped '{a}'.", + line, from + l, '^'); + } + } + if (c === ']') { + warningAt("Empty class.", line, + from + l - 1); + } + isLiteral = false; + isInRange = false; +klass: do { + c = s.charAt(l); + l += 1; + switch (c) { + case '[': + case '^': + warningAt("Unescaped '{a}'.", + line, from + l, c); + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case '-': + if (isLiteral && !isInRange) { + isLiteral = false; + isInRange = true; + } else if (isInRange) { + isInRange = false; + } else if (s.charAt(l) === ']') { + isInRange = true; + } else { + if (option.regexdash !== (l === 2 || (l === 3 && + s.charAt(1) === '^'))) { + warningAt("Unescaped '{a}'.", + line, from + l - 1, '-'); + } + isLiteral = true; + } + break; + case ']': + if (isInRange && !option.regexdash) { + warningAt("Unescaped '{a}'.", + line, from + l - 1, '-'); + } + break klass; + case '\\': + c = s.charAt(l); + if (c < ' ') { + warningAt( +"Unexpected control character in regular expression.", line, from + l); + } else if (c === '<') { + warningAt( +"Unexpected escaped character '{a}' in regular expression.", line, from + l, c); + } + l += 1; + + // \w, \s and \d are never part of a character range + if (/[wsd]/i.test(c)) { + if (isInRange) { + warningAt("Unescaped '{a}'.", + line, from + l, '-'); + isInRange = false; + } + isLiteral = false; + } else if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case '/': + warningAt("Unescaped '{a}'.", + line, from + l - 1, '/'); + + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case '<': + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + default: + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + } + } while (c); + break; + case '.': + if (option.regexp) { + warningAt("Insecure '{a}'.", line, + from + l, c); + } + break; + case ']': + case '?': + case '{': + case '}': + case '+': + case '*': + warningAt("Unescaped '{a}'.", line, + from + l, c); + } + if (b) { + switch (s.charAt(l)) { + case '?': + case '+': + case '*': + l += 1; + if (s.charAt(l) === '?') { + l += 1; + } + break; + case '{': + l += 1; + c = s.charAt(l); + if (c < '0' || c > '9') { + warningAt( +"Expected a number and instead saw '{a}'.", line, from + l, c); + } + l += 1; + low = +c; + for (;;) { + c = s.charAt(l); + if (c < '0' || c > '9') { + break; + } + l += 1; + low = +c + (low * 10); + } + high = low; + if (c === ',') { + l += 1; + high = Infinity; + c = s.charAt(l); + if (c >= '0' && c <= '9') { + l += 1; + high = +c; + for (;;) { + c = s.charAt(l); + if (c < '0' || c > '9') { + break; + } + l += 1; + high = +c + (high * 10); + } + } + } + if (s.charAt(l) !== '}') { + warningAt( +"Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c); + } else { + l += 1; + } + if (s.charAt(l) === '?') { + l += 1; + } + if (low > high) { + warningAt( +"'{a}' should not be greater than '{b}'.", line, from + l, low, high); + } + } + } + } + c = s.substr(0, l - 1); + character += l; + s = s.substr(l); + return it('(regexp)', c); + } + return it('(punctuator)', t); + + // punctuator + + case '#': + return it('(punctuator)', t); + default: + return it('(punctuator)', t); + } + } + } + } + }; + }()); + + + function addlabel(t, type) { + + if (t === 'hasOwnProperty') { + warning("'hasOwnProperty' is a really bad name."); + } + +// Define t in the current function in the current scope. + if (is_own(funct, t) && !funct['(global)']) { + if (funct[t] === true) { + if (option.latedef) + warning("'{a}' was used before it was defined.", nexttoken, t); + } else { + if (!option.shadow && type !== "exception") + warning("'{a}' is already defined.", nexttoken, t); + } + } + + funct[t] = type; + if (funct['(global)']) { + global[t] = funct; + if (is_own(implied, t)) { + if (option.latedef) + warning("'{a}' was used before it was defined.", nexttoken, t); + delete implied[t]; + } + } else { + scope[t] = funct; + } + } + + + function doOption() { + var b, obj, filter, o = nexttoken.value, t, v; + switch (o) { + case '*/': + error("Unbegun comment."); + break; + case '/*members': + case '/*member': + o = '/*members'; + if (!membersOnly) { + membersOnly = {}; + } + obj = membersOnly; + break; + case '/*jshint': + case '/*jslint': + obj = option; + filter = boolOptions; + break; + case '/*global': + obj = predefined; + break; + default: + error("What?"); + } + t = lex.token(); +loop: for (;;) { + for (;;) { + if (t.type === 'special' && t.value === '*/') { + break loop; + } + if (t.id !== '(endline)' && t.id !== ',') { + break; + } + t = lex.token(); + } + if (t.type !== '(string)' && t.type !== '(identifier)' && + o !== '/*members') { + error("Bad option.", t); + } + v = lex.token(); + if (v.id === ':') { + v = lex.token(); + if (obj === membersOnly) { + error("Expected '{a}' and instead saw '{b}'.", + t, '*/', ':'); + } + if (t.value === 'indent' && (o === '/*jshint' || o === '/*jslint')) { + b = +v.value; + if (typeof b !== 'number' || !isFinite(b) || b <= 0 || + Math.floor(b) !== b) { + error("Expected a small integer and instead saw '{a}'.", + v, v.value); + } + obj.white = true; + obj.indent = b; + } else if (t.value === 'maxerr' && (o === '/*jshint' || o === '/*jslint')) { + b = +v.value; + if (typeof b !== 'number' || !isFinite(b) || b <= 0 || + Math.floor(b) !== b) { + error("Expected a small integer and instead saw '{a}'.", + v, v.value); + } + obj.maxerr = b; + } else if (t.value === 'maxlen' && (o === '/*jshint' || o === '/*jslint')) { + b = +v.value; + if (typeof b !== 'number' || !isFinite(b) || b <= 0 || + Math.floor(b) !== b) { + error("Expected a small integer and instead saw '{a}'.", + v, v.value); + } + obj.maxlen = b; + } else if (t.value === 'validthis') { + if (funct['(global)']) { + error("Option 'validthis' can't be used in a global scope."); + } else { + if (v.value === 'true' || v.value === 'false') + obj[t.value] = v.value === 'true'; + else + error("Bad option value.", v); + } + } else if (v.value === 'true') { + obj[t.value] = true; + } else if (v.value === 'false') { + obj[t.value] = false; + } else { + error("Bad option value.", v); + } + t = lex.token(); + } else { + if (o === '/*jshint' || o === '/*jslint') { + error("Missing option value.", t); + } + obj[t.value] = false; + t = v; + } + } + if (filter) { + assume(); + } + } + + +// We need a peek function. If it has an argument, it peeks that much farther +// ahead. It is used to distinguish +// for ( var i in ... +// from +// for ( var i = ... + + function peek(p) { + var i = p || 0, j = 0, t; + + while (j <= i) { + t = lookahead[j]; + if (!t) { + t = lookahead[j] = lex.token(); + } + j += 1; + } + return t; + } + + + +// Produce the next token. It looks for programming errors. + + function advance(id, t) { + switch (token.id) { + case '(number)': + if (nexttoken.id === '.') { + warning("A dot following a number can be confused with a decimal point.", token); + } + break; + case '-': + if (nexttoken.id === '-' || nexttoken.id === '--') { + warning("Confusing minusses."); + } + break; + case '+': + if (nexttoken.id === '+' || nexttoken.id === '++') { + warning("Confusing plusses."); + } + break; + } + + if (token.type === '(string)' || token.identifier) { + anonname = token.value; + } + + if (id && nexttoken.id !== id) { + if (t) { + if (nexttoken.id === '(end)') { + warning("Unmatched '{a}'.", t, t.id); + } else { + warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.", + nexttoken, id, t.id, t.line, nexttoken.value); + } + } else if (nexttoken.type !== '(identifier)' || + nexttoken.value !== id) { + warning("Expected '{a}' and instead saw '{b}'.", + nexttoken, id, nexttoken.value); + } + } + + prevtoken = token; + token = nexttoken; + for (;;) { + nexttoken = lookahead.shift() || lex.token(); + if (nexttoken.id === '(end)' || nexttoken.id === '(error)') { + return; + } + if (nexttoken.type === 'special') { + doOption(); + } else { + if (nexttoken.id !== '(endline)') { + break; + } + } + } + } + + +// This is the heart of JSHINT, the Pratt parser. In addition to parsing, it +// is looking for ad hoc lint patterns. We add .fud to Pratt's model, which is +// like .nud except that it is only used on the first token of a statement. +// Having .fud makes it much easier to define statement-oriented languages like +// JavaScript. I retained Pratt's nomenclature. + +// .nud Null denotation +// .fud First null denotation +// .led Left denotation +// lbp Left binding power +// rbp Right binding power + +// They are elements of the parsing method called Top Down Operator Precedence. + + function expression(rbp, initial) { + var left, isArray = false; + + if (nexttoken.id === '(end)') + error("Unexpected early end of program.", token); + + advance(); + if (initial) { + anonname = 'anonymous'; + funct['(verb)'] = token.value; + } + if (initial === true && token.fud) { + left = token.fud(); + } else { + if (token.nud) { + left = token.nud(); + } else { + if (nexttoken.type === '(number)' && token.id === '.') { + warning("A leading decimal point can be confused with a dot: '.{a}'.", + token, nexttoken.value); + advance(); + return token; + } else { + error("Expected an identifier and instead saw '{a}'.", + token, token.id); + } + } + while (rbp < nexttoken.lbp) { + isArray = token.value === 'Array'; + advance(); + if (isArray && token.id === '(' && nexttoken.id === ')') + warning("Use the array literal notation [].", token); + if (token.led) { + left = token.led(left); + } else { + error("Expected an operator and instead saw '{a}'.", + token, token.id); + } + } + } + return left; + } + + +// Functions for conformance of style. + + function adjacent(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white) { + if (left.character !== right.from && left.line === right.line) { + left.from += (left.character - left.from); + warning("Unexpected space after '{a}'.", left, left.value); + } + } + } + + function nobreak(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white && (left.character !== right.from || left.line !== right.line)) { + warning("Unexpected space before '{a}'.", right, right.value); + } + } + + function nospace(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white && !left.comment) { + if (left.line === right.line) { + adjacent(left, right); + } + } + } + + function nonadjacent(left, right) { + if (option.white) { + left = left || token; + right = right || nexttoken; + if (left.line === right.line && left.character === right.from) { + left.from += (left.character - left.from); + warning("Missing space after '{a}'.", + left, left.value); + } + } + } + + function nobreaknonadjacent(left, right) { + left = left || token; + right = right || nexttoken; + if (!option.laxbreak && left.line !== right.line) { + warning("Bad line breaking before '{a}'.", right, right.id); + } else if (option.white) { + left = left || token; + right = right || nexttoken; + if (left.character === right.from) { + left.from += (left.character - left.from); + warning("Missing space after '{a}'.", + left, left.value); + } + } + } + + function indentation(bias) { + var i; + if (option.white && nexttoken.id !== '(end)') { + i = indent + (bias || 0); + if (nexttoken.from !== i) { + warning( +"Expected '{a}' to have an indentation at {b} instead at {c}.", + nexttoken, nexttoken.value, i, nexttoken.from); + } + } + } + + function nolinebreak(t) { + t = t || token; + if (t.line !== nexttoken.line) { + warning("Line breaking error '{a}'.", t, t.value); + } + } + + + function comma() { + if (token.line !== nexttoken.line) { + if (!option.laxcomma) { + if (comma.first) { + warning("Comma warnings can be turned off with 'laxcomma'"); + comma.first = false; + } + warning("Bad line breaking before '{a}'.", token, nexttoken.id); + } + } else if (!token.comment && token.character !== nexttoken.from && option.white) { + token.from += (token.character - token.from); + warning("Unexpected space after '{a}'.", token, token.value); + } + advance(','); + nonadjacent(token, nexttoken); + } + + comma.first = true; + + +// Functional constructors for making the symbols that will be inherited by +// tokens. + + function symbol(s, p) { + var x = syntax[s]; + if (!x || typeof x !== 'object') { + syntax[s] = x = { + id: s, + lbp: p, + value: s + }; + } + return x; + } + + + function delim(s) { + return symbol(s, 0); + } + + + function stmt(s, f) { + var x = delim(s); + x.identifier = x.reserved = true; + x.fud = f; + return x; + } + + + function blockstmt(s, f) { + var x = stmt(s, f); + x.block = true; + return x; + } + + + function reserveName(x) { + var c = x.id.charAt(0); + if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) { + x.identifier = x.reserved = true; + } + return x; + } + + + function prefix(s, f) { + var x = symbol(s, 150); + reserveName(x); + x.nud = (typeof f === 'function') ? f : function () { + this.right = expression(150); + this.arity = 'unary'; + if (this.id === '++' || this.id === '--') { + if (option.plusplus) { + warning("Unexpected use of '{a}'.", this, this.id); + } else if ((!this.right.identifier || this.right.reserved) && + this.right.id !== '.' && this.right.id !== '[') { + warning("Bad operand.", this); + } + } + return this; + }; + return x; + } + + + function type(s, f) { + var x = delim(s); + x.type = s; + x.nud = f; + return x; + } + + + function reserve(s, f) { + var x = type(s, f); + x.identifier = x.reserved = true; + return x; + } + + + function reservevar(s, v) { + return reserve(s, function () { + if (typeof v === 'function') { + v(this); + } + return this; + }); + } + + + function infix(s, f, p, w) { + var x = symbol(s, p); + reserveName(x); + x.led = function (left) { + if (!w) { + nobreaknonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + } + if (s === "in" && left.id === "!") { + warning("Confusing use of '{a}'.", left, '!'); + } + if (typeof f === 'function') { + return f(left, this); + } else { + this.left = left; + this.right = expression(p); + return this; + } + }; + return x; + } + + + function relation(s, f) { + var x = symbol(s, 100); + x.led = function (left) { + nobreaknonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + var right = expression(100); + if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) { + warning("Use the isNaN function to compare with NaN.", this); + } else if (f) { + f.apply(this, [left, right]); + } + if (left.id === '!') { + warning("Confusing use of '{a}'.", left, '!'); + } + if (right.id === '!') { + warning("Confusing use of '{a}'.", right, '!'); + } + this.left = left; + this.right = right; + return this; + }; + return x; + } + + + function isPoorRelation(node) { + return node && + ((node.type === '(number)' && +node.value === 0) || + (node.type === '(string)' && node.value === '') || + (node.type === 'null' && !option.eqnull) || + node.type === 'true' || + node.type === 'false' || + node.type === 'undefined'); + } + + + function assignop(s, f) { + symbol(s, 20).exps = true; + return infix(s, function (left, that) { + var l; + that.left = left; + if (predefined[left.value] === false && + scope[left.value]['(global)'] === true) { + warning("Read only.", left); + } else if (left['function']) { + warning("'{a}' is a function.", left, left.value); + } + if (left) { + if (option.esnext && funct[left.value] === 'const') { + warning("Attempting to override '{a}' which is a constant", left, left.value); + } + if (left.id === '.' || left.id === '[') { + if (!left.left || left.left.value === 'arguments') { + warning('Bad assignment.', that); + } + that.right = expression(19); + return that; + } else if (left.identifier && !left.reserved) { + if (funct[left.value] === 'exception') { + warning("Do not assign to the exception parameter.", left); + } + that.right = expression(19); + return that; + } + if (left === syntax['function']) { + warning( +"Expected an identifier in an assignment and instead saw a function invocation.", + token); + } + } + error("Bad assignment.", that); + }, 20); + } + + + function bitwise(s, f, p) { + var x = symbol(s, p); + reserveName(x); + x.led = (typeof f === 'function') ? f : function (left) { + if (option.bitwise) { + warning("Unexpected use of '{a}'.", this, this.id); + } + this.left = left; + this.right = expression(p); + return this; + }; + return x; + } + + + function bitwiseassignop(s) { + symbol(s, 20).exps = true; + return infix(s, function (left, that) { + if (option.bitwise) { + warning("Unexpected use of '{a}'.", that, that.id); + } + nonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + if (left) { + if (left.id === '.' || left.id === '[' || + (left.identifier && !left.reserved)) { + expression(19); + return that; + } + if (left === syntax['function']) { + warning( +"Expected an identifier in an assignment, and instead saw a function invocation.", + token); + } + return that; + } + error("Bad assignment.", that); + }, 20); + } + + + function suffix(s, f) { + var x = symbol(s, 150); + x.led = function (left) { + if (option.plusplus) { + warning("Unexpected use of '{a}'.", this, this.id); + } else if ((!left.identifier || left.reserved) && + left.id !== '.' && left.id !== '[') { + warning("Bad operand.", this); + } + this.left = left; + return this; + }; + return x; + } + + + // fnparam means that this identifier is being defined as a function + // argument (see identifier()) + function optionalidentifier(fnparam) { + if (nexttoken.identifier) { + advance(); + if (token.reserved && !option.es5) { + // `undefined` as a function param is a common pattern to protect + // against the case when somebody does `undefined = true` and + // help with minification. More info: https://gist.github.com/315916 + if (!fnparam || token.value !== 'undefined') { + warning("Expected an identifier and instead saw '{a}' (a reserved word).", + token, token.id); + } + } + return token.value; + } + } + + // fnparam means that this identifier is being defined as a function + // argument + function identifier(fnparam) { + var i = optionalidentifier(fnparam); + if (i) { + return i; + } + if (token.id === 'function' && nexttoken.id === '(') { + warning("Missing name in function declaration."); + } else { + error("Expected an identifier and instead saw '{a}'.", + nexttoken, nexttoken.value); + } + } + + + function reachable(s) { + var i = 0, t; + if (nexttoken.id !== ';' || noreach) { + return; + } + for (;;) { + t = peek(i); + if (t.reach) { + return; + } + if (t.id !== '(endline)') { + if (t.id === 'function') { + if (!option.latedef) { + break; + } + warning( +"Inner functions should be listed at the top of the outer function.", t); + break; + } + warning("Unreachable '{a}' after '{b}'.", t, t.value, s); + break; + } + i += 1; + } + } + + + function statement(noindent) { + var i = indent, r, s = scope, t = nexttoken; + + if (t.id === ";") { + advance(";"); + return; + } + +// Is this a labelled statement? + + if (t.identifier && !t.reserved && peek().id === ':') { + advance(); + advance(':'); + scope = Object.create(s); + addlabel(t.value, 'label'); + if (!nexttoken.labelled) { + warning("Label '{a}' on {b} statement.", + nexttoken, t.value, nexttoken.value); + } + if (jx.test(t.value + ':')) { + warning("Label '{a}' looks like a javascript url.", + t, t.value); + } + nexttoken.label = t.value; + t = nexttoken; + } + +// Parse the statement. + + if (!noindent) { + indentation(); + } + r = expression(0, true); + + // Look for the final semicolon. + if (!t.block) { + if (!option.expr && (!r || !r.exps)) { + warning("Expected an assignment or function call and instead saw an expression.", + token); + } else if (option.nonew && r.id === '(' && r.left.id === 'new') { + warning("Do not use 'new' for side effects."); + } + + if (nexttoken.id !== ';') { + if (!option.asi) { + // If this is the last statement in a block that ends on + // the same line *and* option lastsemic is on, ignore the warning. + // Otherwise, complain about missing semicolon. + if (!option.lastsemic || nexttoken.id !== '}' || + nexttoken.line !== token.line) { + warningAt("Missing semicolon.", token.line, token.character); + } + } + } else { + adjacent(token, nexttoken); + advance(';'); + nonadjacent(token, nexttoken); + } + } + +// Restore the indentation. + + indent = i; + scope = s; + return r; + } + + + function statements(startLine) { + var a = [], f, p; + + while (!nexttoken.reach && nexttoken.id !== '(end)') { + if (nexttoken.id === ';') { + p = peek(); + if (!p || p.id !== "(") { + warning("Unnecessary semicolon."); + } + advance(';'); + } else { + a.push(statement(startLine === nexttoken.line)); + } + } + return a; + } + + + /* + * read all directives + * recognizes a simple form of asi, but always + * warns, if it is used + */ + function directives() { + var i, p, pn; + + for (;;) { + if (nexttoken.id === "(string)") { + p = peek(0); + if (p.id === "(endline)") { + i = 1; + do { + pn = peek(i); + i = i + 1; + } while (pn.id === "(endline)"); + + if (pn.id !== ";") { + if (pn.id !== "(string)" && pn.id !== "(number)" && + pn.id !== "(regexp)" && pn.identifier !== true && + pn.id !== "}") { + break; + } + warning("Missing semicolon.", nexttoken); + } else { + p = pn; + } + } else if (p.id === "}") { + // directive with no other statements, warn about missing semicolon + warning("Missing semicolon.", p); + } else if (p.id !== ";") { + break; + } + + indentation(); + advance(); + if (directive[token.value]) { + warning("Unnecessary directive \"{a}\".", token, token.value); + } + + if (token.value === "use strict") { + option.newcap = true; + option.undef = true; + } + + // there's no directive negation, so always set to true + directive[token.value] = true; + + if (p.id === ";") { + advance(";"); + } + continue; + } + break; + } + } + + + /* + * Parses a single block. A block is a sequence of statements wrapped in + * braces. + * + * ordinary - true for everything but function bodies and try blocks. + * stmt - true if block can be a single statement (e.g. in if/for/while). + * isfunc - true if block is a function body + */ + function block(ordinary, stmt, isfunc) { + var a, + b = inblock, + old_indent = indent, + m, + s = scope, + t, + line, + d; + + inblock = ordinary; + if (!ordinary || !option.funcscope) scope = Object.create(scope); + nonadjacent(token, nexttoken); + t = nexttoken; + + if (nexttoken.id === '{') { + advance('{'); + line = token.line; + if (nexttoken.id !== '}') { + indent += option.indent; + while (!ordinary && nexttoken.from > indent) { + indent += option.indent; + } + + if (isfunc) { + m = {}; + for (d in directive) { + if (is_own(directive, d)) { + m[d] = directive[d]; + } + } + directives(); + + if (option.strict && funct['(context)']['(global)']) { + if (!m["use strict"] && !directive["use strict"]) { + warning("Missing \"use strict\" statement."); + } + } + } + + a = statements(line); + + if (isfunc) { + directive = m; + } + + indent -= option.indent; + if (line !== nexttoken.line) { + indentation(); + } + } else if (line !== nexttoken.line) { + indentation(); + } + advance('}', t); + indent = old_indent; + } else if (!ordinary) { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, '{', nexttoken.value); + } else { + if (!stmt || option.curly) + warning("Expected '{a}' and instead saw '{b}'.", + nexttoken, '{', nexttoken.value); + + noreach = true; + indent += option.indent; + // test indentation only if statement is in new line + a = [statement(nexttoken.line === token.line)]; + indent -= option.indent; + noreach = false; + } + funct['(verb)'] = null; + if (!ordinary || !option.funcscope) scope = s; + inblock = b; + if (ordinary && option.noempty && (!a || a.length === 0)) { + warning("Empty block."); + } + return a; + } + + + function countMember(m) { + if (membersOnly && typeof membersOnly[m] !== 'boolean') { + warning("Unexpected /*member '{a}'.", token, m); + } + if (typeof member[m] === 'number') { + member[m] += 1; + } else { + member[m] = 1; + } + } + + + function note_implied(token) { + var name = token.value, line = token.line, a = implied[name]; + if (typeof a === 'function') { + a = false; + } + + if (!a) { + a = [line]; + implied[name] = a; + } else if (a[a.length - 1] !== line) { + a.push(line); + } + } + + + // Build the syntax table by declaring the syntactic elements of the language. + + type('(number)', function () { + return this; + }); + + type('(string)', function () { + return this; + }); + + syntax['(identifier)'] = { + type: '(identifier)', + lbp: 0, + identifier: true, + nud: function () { + var v = this.value, + s = scope[v], + f; + + if (typeof s === 'function') { + // Protection against accidental inheritance. + s = undefined; + } else if (typeof s === 'boolean') { + f = funct; + funct = functions[0]; + addlabel(v, 'var'); + s = funct; + funct = f; + } + + // The name is in scope and defined in the current function. + if (funct === s) { + // Change 'unused' to 'var', and reject labels. + switch (funct[v]) { + case 'unused': + funct[v] = 'var'; + break; + case 'unction': + funct[v] = 'function'; + this['function'] = true; + break; + case 'function': + this['function'] = true; + break; + case 'label': + warning("'{a}' is a statement label.", token, v); + break; + } + } else if (funct['(global)']) { + // The name is not defined in the function. If we are in the global + // scope, then we have an undefined variable. + // + // Operators typeof and delete do not raise runtime errors even if + // the base object of a reference is null so no need to display warning + // if we're inside of typeof or delete. + + if (option.undef && typeof predefined[v] !== 'boolean') { + // Attempting to subscript a null reference will throw an + // error, even within the typeof and delete operators + if (!(anonname === 'typeof' || anonname === 'delete') || + (nexttoken && (nexttoken.value === '.' || nexttoken.value === '['))) { + + isundef(funct, "'{a}' is not defined.", token, v); + } + } + note_implied(token); + } else { + // If the name is already defined in the current + // function, but not as outer, then there is a scope error. + + switch (funct[v]) { + case 'closure': + case 'function': + case 'var': + case 'unused': + warning("'{a}' used out of scope.", token, v); + break; + case 'label': + warning("'{a}' is a statement label.", token, v); + break; + case 'outer': + case 'global': + break; + default: + // If the name is defined in an outer function, make an outer entry, + // and if it was unused, make it var. + if (s === true) { + funct[v] = true; + } else if (s === null) { + warning("'{a}' is not allowed.", token, v); + note_implied(token); + } else if (typeof s !== 'object') { + // Operators typeof and delete do not raise runtime errors even + // if the base object of a reference is null so no need to + // display warning if we're inside of typeof or delete. + if (option.undef) { + // Attempting to subscript a null reference will throw an + // error, even within the typeof and delete operators + if (!(anonname === 'typeof' || anonname === 'delete') || + (nexttoken && + (nexttoken.value === '.' || nexttoken.value === '['))) { + + isundef(funct, "'{a}' is not defined.", token, v); + } + } + funct[v] = true; + note_implied(token); + } else { + switch (s[v]) { + case 'function': + case 'unction': + this['function'] = true; + s[v] = 'closure'; + funct[v] = s['(global)'] ? 'global' : 'outer'; + break; + case 'var': + case 'unused': + s[v] = 'closure'; + funct[v] = s['(global)'] ? 'global' : 'outer'; + break; + case 'closure': + case 'parameter': + funct[v] = s['(global)'] ? 'global' : 'outer'; + break; + case 'label': + warning("'{a}' is a statement label.", token, v); + } + } + } + } + return this; + }, + led: function () { + error("Expected an operator and instead saw '{a}'.", + nexttoken, nexttoken.value); + } + }; + + type('(regexp)', function () { + return this; + }); + + +// ECMAScript parser + + delim('(endline)'); + delim('(begin)'); + delim('(end)').reach = true; + delim(''); + delim('(error)').reach = true; + delim('}').reach = true; + delim(')'); + delim(']'); + delim('"').reach = true; + delim("'").reach = true; + delim(';'); + delim(':').reach = true; + delim(','); + delim('#'); + delim('@'); + reserve('else'); + reserve('case').reach = true; + reserve('catch'); + reserve('default').reach = true; + reserve('finally'); + reservevar('arguments', function (x) { + if (directive['use strict'] && funct['(global)']) { + warning("Strict violation.", x); + } + }); + reservevar('eval'); + reservevar('false'); + reservevar('Infinity'); + reservevar('NaN'); + reservevar('null'); + reservevar('this', function (x) { + if (directive['use strict'] && !option.validthis && ((funct['(statement)'] && + funct['(name)'].charAt(0) > 'Z') || funct['(global)'])) { + warning("Possible strict violation.", x); + } + }); + reservevar('true'); + reservevar('undefined'); + assignop('=', 'assign', 20); + assignop('+=', 'assignadd', 20); + assignop('-=', 'assignsub', 20); + assignop('*=', 'assignmult', 20); + assignop('/=', 'assigndiv', 20).nud = function () { + error("A regular expression literal can be confused with '/='."); + }; + assignop('%=', 'assignmod', 20); + bitwiseassignop('&=', 'assignbitand', 20); + bitwiseassignop('|=', 'assignbitor', 20); + bitwiseassignop('^=', 'assignbitxor', 20); + bitwiseassignop('<<=', 'assignshiftleft', 20); + bitwiseassignop('>>=', 'assignshiftright', 20); + bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20); + infix('?', function (left, that) { + that.left = left; + that.right = expression(10); + advance(':'); + that['else'] = expression(10); + return that; + }, 30); + + infix('||', 'or', 40); + infix('&&', 'and', 50); + bitwise('|', 'bitor', 70); + bitwise('^', 'bitxor', 80); + bitwise('&', 'bitand', 90); + relation('==', function (left, right) { + var eqnull = option.eqnull && (left.value === 'null' || right.value === 'null'); + + if (!eqnull && option.eqeqeq) + warning("Expected '{a}' and instead saw '{b}'.", this, '===', '=='); + else if (isPoorRelation(left)) + warning("Use '{a}' to compare with '{b}'.", this, '===', left.value); + else if (isPoorRelation(right)) + warning("Use '{a}' to compare with '{b}'.", this, '===', right.value); + + return this; + }); + relation('==='); + relation('!=', function (left, right) { + var eqnull = option.eqnull && + (left.value === 'null' || right.value === 'null'); + + if (!eqnull && option.eqeqeq) { + warning("Expected '{a}' and instead saw '{b}'.", + this, '!==', '!='); + } else if (isPoorRelation(left)) { + warning("Use '{a}' to compare with '{b}'.", + this, '!==', left.value); + } else if (isPoorRelation(right)) { + warning("Use '{a}' to compare with '{b}'.", + this, '!==', right.value); + } + return this; + }); + relation('!=='); + relation('<'); + relation('>'); + relation('<='); + relation('>='); + bitwise('<<', 'shiftleft', 120); + bitwise('>>', 'shiftright', 120); + bitwise('>>>', 'shiftrightunsigned', 120); + infix('in', 'in', 120); + infix('instanceof', 'instanceof', 120); + infix('+', function (left, that) { + var right = expression(130); + if (left && right && left.id === '(string)' && right.id === '(string)') { + left.value += right.value; + left.character = right.character; + if (!option.scripturl && jx.test(left.value)) { + warning("JavaScript URL.", left); + } + return left; + } + that.left = left; + that.right = right; + return that; + }, 130); + prefix('+', 'num'); + prefix('+++', function () { + warning("Confusing pluses."); + this.right = expression(150); + this.arity = 'unary'; + return this; + }); + infix('+++', function (left) { + warning("Confusing pluses."); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix('-', 'sub', 130); + prefix('-', 'neg'); + prefix('---', function () { + warning("Confusing minuses."); + this.right = expression(150); + this.arity = 'unary'; + return this; + }); + infix('---', function (left) { + warning("Confusing minuses."); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix('*', 'mult', 140); + infix('/', 'div', 140); + infix('%', 'mod', 140); + + suffix('++', 'postinc'); + prefix('++', 'preinc'); + syntax['++'].exps = true; + + suffix('--', 'postdec'); + prefix('--', 'predec'); + syntax['--'].exps = true; + prefix('delete', function () { + var p = expression(0); + if (!p || (p.id !== '.' && p.id !== '[')) { + warning("Variables should not be deleted."); + } + this.first = p; + return this; + }).exps = true; + + prefix('~', function () { + if (option.bitwise) { + warning("Unexpected '{a}'.", this, '~'); + } + expression(150); + return this; + }); + + prefix('!', function () { + this.right = expression(150); + this.arity = 'unary'; + if (bang[this.right.id] === true) { + warning("Confusing use of '{a}'.", this, '!'); + } + return this; + }); + prefix('typeof', 'typeof'); + prefix('new', function () { + var c = expression(155), i; + if (c && c.id !== 'function') { + if (c.identifier) { + c['new'] = true; + switch (c.value) { + case 'Object': + warning("Use the object literal notation {}.", token); + break; + case 'Number': + case 'String': + case 'Boolean': + case 'Math': + case 'JSON': + warning("Do not use {a} as a constructor.", token, c.value); + break; + case 'Function': + if (!option.evil) { + warning("The Function constructor is eval."); + } + break; + case 'Date': + case 'RegExp': + break; + default: + if (c.id !== 'function') { + i = c.value.substr(0, 1); + if (option.newcap && (i < 'A' || i > 'Z')) { + warning("A constructor name should start with an uppercase letter.", + token); + } + } + } + } else { + if (c.id !== '.' && c.id !== '[' && c.id !== '(') { + warning("Bad constructor.", token); + } + } + } else { + if (!option.supernew) + warning("Weird construction. Delete 'new'.", this); + } + adjacent(token, nexttoken); + if (nexttoken.id !== '(' && !option.supernew) { + warning("Missing '()' invoking a constructor."); + } + this.first = c; + return this; + }); + syntax['new'].exps = true; + + prefix('void').exps = true; + + infix('.', function (left, that) { + adjacent(prevtoken, token); + nobreak(); + var m = identifier(); + if (typeof m === 'string') { + countMember(m); + } + that.left = left; + that.right = m; + if (left && left.value === 'arguments' && (m === 'callee' || m === 'caller')) { + if (option.noarg) + warning("Avoid arguments.{a}.", left, m); + else if (directive['use strict']) + error('Strict violation.'); + } else if (!option.evil && left && left.value === 'document' && + (m === 'write' || m === 'writeln')) { + warning("document.write can be a form of eval.", left); + } + if (!option.evil && (m === 'eval' || m === 'execScript')) { + warning('eval is evil.'); + } + return that; + }, 160, true); + + infix('(', function (left, that) { + if (prevtoken.id !== '}' && prevtoken.id !== ')') { + nobreak(prevtoken, token); + } + nospace(); + if (option.immed && !left.immed && left.id === 'function') { + warning("Wrap an immediate function invocation in parentheses " + + "to assist the reader in understanding that the expression " + + "is the result of a function, and not the function itself."); + } + var n = 0, + p = []; + if (left) { + if (left.type === '(identifier)') { + if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) { + if (left.value !== 'Number' && left.value !== 'String' && + left.value !== 'Boolean' && + left.value !== 'Date') { + if (left.value === 'Math') { + warning("Math is not a function.", left); + } else if (option.newcap) { + warning( +"Missing 'new' prefix when invoking a constructor.", left); + } + } + } + } + } + if (nexttoken.id !== ')') { + for (;;) { + p[p.length] = expression(10); + n += 1; + if (nexttoken.id !== ',') { + break; + } + comma(); + } + } + advance(')'); + nospace(prevtoken, token); + if (typeof left === 'object') { + if (left.value === 'parseInt' && n === 1) { + warning("Missing radix parameter.", left); + } + if (!option.evil) { + if (left.value === 'eval' || left.value === 'Function' || + left.value === 'execScript') { + warning("eval is evil.", left); + } else if (p[0] && p[0].id === '(string)' && + (left.value === 'setTimeout' || + left.value === 'setInterval')) { + warning( + "Implied eval is evil. Pass a function instead of a string.", left); + } + } + if (!left.identifier && left.id !== '.' && left.id !== '[' && + left.id !== '(' && left.id !== '&&' && left.id !== '||' && + left.id !== '?') { + warning("Bad invocation.", left); + } + } + that.left = left; + return that; + }, 155, true).exps = true; + + prefix('(', function () { + nospace(); + if (nexttoken.id === 'function') { + nexttoken.immed = true; + } + var v = expression(0); + advance(')', this); + nospace(prevtoken, token); + if (option.immed && v.id === 'function') { + if (nexttoken.id === '(' || + (nexttoken.id === '.' && (peek().value === 'call' || peek().value === 'apply'))) { + warning( +"Move the invocation into the parens that contain the function.", nexttoken); + } else { + warning( +"Do not wrap function literals in parens unless they are to be immediately invoked.", + this); + } + } + return v; + }); + + infix('[', function (left, that) { + nobreak(prevtoken, token); + nospace(); + var e = expression(0), s; + if (e && e.type === '(string)') { + if (!option.evil && (e.value === 'eval' || e.value === 'execScript')) { + warning("eval is evil.", that); + } + countMember(e.value); + if (!option.sub && ix.test(e.value)) { + s = syntax[e.value]; + if (!s || !s.reserved) { + warning("['{a}'] is better written in dot notation.", + e, e.value); + } + } + } + advance(']', that); + nospace(prevtoken, token); + that.left = left; + that.right = e; + return that; + }, 160, true); + + prefix('[', function () { + var b = token.line !== nexttoken.line; + this.first = []; + if (b) { + indent += option.indent; + if (nexttoken.from === indent + option.indent) { + indent += option.indent; + } + } + while (nexttoken.id !== '(end)') { + while (nexttoken.id === ',') { + warning("Extra comma."); + advance(','); + } + if (nexttoken.id === ']') { + break; + } + if (b && token.line !== nexttoken.line) { + indentation(); + } + this.first.push(expression(10)); + if (nexttoken.id === ',') { + comma(); + if (nexttoken.id === ']' && !option.es5) { + warning("Extra comma.", token); + break; + } + } else { + break; + } + } + if (b) { + indent -= option.indent; + indentation(); + } + advance(']', this); + return this; + }, 160); + + + function property_name() { + var id = optionalidentifier(true); + if (!id) { + if (nexttoken.id === '(string)') { + id = nexttoken.value; + advance(); + } else if (nexttoken.id === '(number)') { + id = nexttoken.value.toString(); + advance(); + } + } + return id; + } + + + function functionparams() { + var i, t = nexttoken, p = []; + advance('('); + nospace(); + if (nexttoken.id === ')') { + advance(')'); + return; + } + for (;;) { + i = identifier(true); + p.push(i); + addlabel(i, 'parameter'); + if (nexttoken.id === ',') { + comma(); + } else { + advance(')', t); + nospace(prevtoken, token); + return p; + } + } + } + + + function doFunction(i, statement) { + var f, + oldOption = option, + oldScope = scope; + + option = Object.create(option); + scope = Object.create(scope); + + funct = { + '(name)' : i || '"' + anonname + '"', + '(line)' : nexttoken.line, + '(context)' : funct, + '(breakage)' : 0, + '(loopage)' : 0, + '(scope)' : scope, + '(statement)': statement + }; + f = funct; + token.funct = funct; + functions.push(funct); + if (i) { + addlabel(i, 'function'); + } + funct['(params)'] = functionparams(); + + block(false, false, true); + scope = oldScope; + option = oldOption; + funct['(last)'] = token.line; + funct = funct['(context)']; + return f; + } + + + (function (x) { + x.nud = function () { + var b, f, i, j, p, t; + var props = {}; // All properties, including accessors + + function saveProperty(name, token) { + if (props[name] && is_own(props, name)) + warning("Duplicate member '{a}'.", nexttoken, i); + else + props[name] = {}; + + props[name].basic = true; + props[name].basicToken = token; + } + + function saveSetter(name, token) { + if (props[name] && is_own(props, name)) { + if (props[name].basic || props[name].setter) + warning("Duplicate member '{a}'.", nexttoken, i); + } else { + props[name] = {}; + } + + props[name].setter = true; + props[name].setterToken = token; + } + + function saveGetter(name) { + if (props[name] && is_own(props, name)) { + if (props[name].basic || props[name].getter) + warning("Duplicate member '{a}'.", nexttoken, i); + } else { + props[name] = {}; + } + + props[name].getter = true; + props[name].getterToken = token; + } + + b = token.line !== nexttoken.line; + if (b) { + indent += option.indent; + if (nexttoken.from === indent + option.indent) { + indent += option.indent; + } + } + for (;;) { + if (nexttoken.id === '}') { + break; + } + if (b) { + indentation(); + } + if (nexttoken.value === 'get' && peek().id !== ':') { + advance('get'); + if (!option.es5) { + error("get/set are ES5 features."); + } + i = property_name(); + if (!i) { + error("Missing property name."); + } + saveGetter(i); + t = nexttoken; + adjacent(token, nexttoken); + f = doFunction(); + p = f['(params)']; + if (p) { + warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i); + } + adjacent(token, nexttoken); + } else if (nexttoken.value === 'set' && peek().id !== ':') { + advance('set'); + if (!option.es5) { + error("get/set are ES5 features."); + } + i = property_name(); + if (!i) { + error("Missing property name."); + } + saveSetter(i, nexttoken); + t = nexttoken; + adjacent(token, nexttoken); + f = doFunction(); + p = f['(params)']; + if (!p || p.length !== 1) { + warning("Expected a single parameter in set {a} function.", t, i); + } + } else { + i = property_name(); + saveProperty(i, nexttoken); + if (typeof i !== 'string') { + break; + } + advance(':'); + nonadjacent(token, nexttoken); + expression(10); + } + + countMember(i); + if (nexttoken.id === ',') { + comma(); + if (nexttoken.id === ',') { + warning("Extra comma.", token); + } else if (nexttoken.id === '}' && !option.es5) { + warning("Extra comma.", token); + } + } else { + break; + } + } + if (b) { + indent -= option.indent; + indentation(); + } + advance('}', this); + + // Check for lonely setters if in the ES5 mode. + if (option.es5) { + for (var name in props) { + if (is_own(props, name) && props[name].setter && !props[name].getter) { + warning("Setter is defined without getter.", props[name].setterToken); + } + } + } + return this; + }; + x.fud = function () { + error("Expected to see a statement and instead saw a block.", token); + }; + }(delim('{'))); + +// This Function is called when esnext option is set to true +// it adds the `const` statement to JSHINT + + useESNextSyntax = function () { + var conststatement = stmt('const', function (prefix) { + var id, name, value; + + this.first = []; + for (;;) { + nonadjacent(token, nexttoken); + id = identifier(); + if (funct[id] === "const") { + warning("const '" + id + "' has already been declared"); + } + if (funct['(global)'] && predefined[id] === false) { + warning("Redefinition of '{a}'.", token, id); + } + addlabel(id, 'const'); + if (prefix) { + break; + } + name = token; + this.first.push(token); + + if (nexttoken.id !== "=") { + warning("const " + + "'{a}' is initialized to 'undefined'.", token, id); + } + + if (nexttoken.id === '=') { + nonadjacent(token, nexttoken); + advance('='); + nonadjacent(token, nexttoken); + if (nexttoken.id === 'undefined') { + warning("It is not necessary to initialize " + + "'{a}' to 'undefined'.", token, id); + } + if (peek(0).id === '=' && nexttoken.identifier) { + error("Constant {a} was not declared correctly.", + nexttoken, nexttoken.value); + } + value = expression(0); + name.first = value; + } + + if (nexttoken.id !== ',') { + break; + } + comma(); + } + return this; + }); + conststatement.exps = true; + }; + + var varstatement = stmt('var', function (prefix) { + // JavaScript does not have block scope. It only has function scope. So, + // declaring a variable in a block can have unexpected consequences. + var id, name, value; + + if (funct['(onevar)'] && option.onevar) { + warning("Too many var statements."); + } else if (!funct['(global)']) { + funct['(onevar)'] = true; + } + this.first = []; + for (;;) { + nonadjacent(token, nexttoken); + id = identifier(); + if (option.esnext && funct[id] === "const") { + warning("const '" + id + "' has already been declared"); + } + if (funct['(global)'] && predefined[id] === false) { + warning("Redefinition of '{a}'.", token, id); + } + addlabel(id, 'unused'); + if (prefix) { + break; + } + name = token; + this.first.push(token); + if (nexttoken.id === '=') { + nonadjacent(token, nexttoken); + advance('='); + nonadjacent(token, nexttoken); + if (nexttoken.id === 'undefined') { + warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id); + } + if (peek(0).id === '=' && nexttoken.identifier) { + error("Variable {a} was not declared correctly.", + nexttoken, nexttoken.value); + } + value = expression(0); + name.first = value; + } + if (nexttoken.id !== ',') { + break; + } + comma(); + } + return this; + }); + varstatement.exps = true; + + blockstmt('function', function () { + if (inblock) { + warning("Function declarations should not be placed in blocks. " + + "Use a function expression or move the statement to the top of " + + "the outer function.", token); + + } + var i = identifier(); + if (option.esnext && funct[i] === "const") { + warning("const '" + i + "' has already been declared"); + } + adjacent(token, nexttoken); + addlabel(i, 'unction'); + doFunction(i, true); + if (nexttoken.id === '(' && nexttoken.line === token.line) { + error( +"Function declarations are not invocable. Wrap the whole function invocation in parens."); + } + return this; + }); + + prefix('function', function () { + var i = optionalidentifier(); + if (i) { + adjacent(token, nexttoken); + } else { + nonadjacent(token, nexttoken); + } + doFunction(i); + if (!option.loopfunc && funct['(loopage)']) { + warning("Don't make functions within a loop."); + } + return this; + }); + + blockstmt('if', function () { + var t = nexttoken; + advance('('); + nonadjacent(this, t); + nospace(); + expression(20); + if (nexttoken.id === '=') { + if (!option.boss) + warning("Expected a conditional expression and instead saw an assignment."); + advance('='); + expression(20); + } + advance(')', t); + nospace(prevtoken, token); + block(true, true); + if (nexttoken.id === 'else') { + nonadjacent(token, nexttoken); + advance('else'); + if (nexttoken.id === 'if' || nexttoken.id === 'switch') { + statement(true); + } else { + block(true, true); + } + } + return this; + }); + + blockstmt('try', function () { + var b, e, s; + + block(false); + if (nexttoken.id === 'catch') { + advance('catch'); + nonadjacent(token, nexttoken); + advance('('); + s = scope; + scope = Object.create(s); + e = nexttoken.value; + if (nexttoken.type !== '(identifier)') { + warning("Expected an identifier and instead saw '{a}'.", + nexttoken, e); + } else { + addlabel(e, 'exception'); + } + advance(); + advance(')'); + block(false); + b = true; + scope = s; + } + if (nexttoken.id === 'finally') { + advance('finally'); + block(false); + return; + } else if (!b) { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, 'catch', nexttoken.value); + } + return this; + }); + + blockstmt('while', function () { + var t = nexttoken; + funct['(breakage)'] += 1; + funct['(loopage)'] += 1; + advance('('); + nonadjacent(this, t); + nospace(); + expression(20); + if (nexttoken.id === '=') { + if (!option.boss) + warning("Expected a conditional expression and instead saw an assignment."); + advance('='); + expression(20); + } + advance(')', t); + nospace(prevtoken, token); + block(true, true); + funct['(breakage)'] -= 1; + funct['(loopage)'] -= 1; + return this; + }).labelled = true; + + reserve('with'); + + blockstmt('switch', function () { + var t = nexttoken, + g = false; + funct['(breakage)'] += 1; + advance('('); + nonadjacent(this, t); + nospace(); + this.condition = expression(20); + advance(')', t); + nospace(prevtoken, token); + nonadjacent(token, nexttoken); + t = nexttoken; + advance('{'); + nonadjacent(token, nexttoken); + indent += option.indent; + this.cases = []; + for (;;) { + switch (nexttoken.id) { + case 'case': + switch (funct['(verb)']) { + case 'break': + case 'case': + case 'continue': + case 'return': + case 'switch': + case 'throw': + break; + default: + // You can tell JSHint that you don't use break intentionally by + // adding a comment /* falls through */ on a line just before + // the next `case`. + if (!ft.test(lines[nexttoken.line - 2])) { + warning( + "Expected a 'break' statement before 'case'.", + token); + } + } + indentation(-option.indent); + advance('case'); + this.cases.push(expression(20)); + g = true; + advance(':'); + funct['(verb)'] = 'case'; + break; + case 'default': + switch (funct['(verb)']) { + case 'break': + case 'continue': + case 'return': + case 'throw': + break; + default: + if (!ft.test(lines[nexttoken.line - 2])) { + warning( + "Expected a 'break' statement before 'default'.", + token); + } + } + indentation(-option.indent); + advance('default'); + g = true; + advance(':'); + break; + case '}': + indent -= option.indent; + indentation(); + advance('}', t); + if (this.cases.length === 1 || this.condition.id === 'true' || + this.condition.id === 'false') { + if (!option.onecase) + warning("This 'switch' should be an 'if'.", this); + } + funct['(breakage)'] -= 1; + funct['(verb)'] = undefined; + return; + case '(end)': + error("Missing '{a}'.", nexttoken, '}'); + return; + default: + if (g) { + switch (token.id) { + case ',': + error("Each value should have its own case label."); + return; + case ':': + g = false; + statements(); + break; + default: + error("Missing ':' on a case clause.", token); + return; + } + } else { + if (token.id === ':') { + advance(':'); + error("Unexpected '{a}'.", token, ':'); + statements(); + } else { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, 'case', nexttoken.value); + return; + } + } + } + } + }).labelled = true; + + stmt('debugger', function () { + if (!option.debug) { + warning("All 'debugger' statements should be removed."); + } + return this; + }).exps = true; + + (function () { + var x = stmt('do', function () { + funct['(breakage)'] += 1; + funct['(loopage)'] += 1; + this.first = block(true); + advance('while'); + var t = nexttoken; + nonadjacent(token, t); + advance('('); + nospace(); + expression(20); + if (nexttoken.id === '=') { + if (!option.boss) + warning("Expected a conditional expression and instead saw an assignment."); + advance('='); + expression(20); + } + advance(')', t); + nospace(prevtoken, token); + funct['(breakage)'] -= 1; + funct['(loopage)'] -= 1; + return this; + }); + x.labelled = true; + x.exps = true; + }()); + + blockstmt('for', function () { + var s, t = nexttoken; + funct['(breakage)'] += 1; + funct['(loopage)'] += 1; + advance('('); + nonadjacent(this, t); + nospace(); + if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') { + if (nexttoken.id === 'var') { + advance('var'); + varstatement.fud.call(varstatement, true); + } else { + switch (funct[nexttoken.value]) { + case 'unused': + funct[nexttoken.value] = 'var'; + break; + case 'var': + break; + default: + warning("Bad for in variable '{a}'.", + nexttoken, nexttoken.value); + } + advance(); + } + advance('in'); + expression(20); + advance(')', t); + s = block(true, true); + if (option.forin && s && (s.length > 1 || typeof s[0] !== 'object' || + s[0].value !== 'if')) { + warning("The body of a for in should be wrapped in an if statement to filter " + + "unwanted properties from the prototype.", this); + } + funct['(breakage)'] -= 1; + funct['(loopage)'] -= 1; + return this; + } else { + if (nexttoken.id !== ';') { + if (nexttoken.id === 'var') { + advance('var'); + varstatement.fud.call(varstatement); + } else { + for (;;) { + expression(0, 'for'); + if (nexttoken.id !== ',') { + break; + } + comma(); + } + } + } + nolinebreak(token); + advance(';'); + if (nexttoken.id !== ';') { + expression(20); + if (nexttoken.id === '=') { + if (!option.boss) + warning("Expected a conditional expression and instead saw an assignment."); + advance('='); + expression(20); + } + } + nolinebreak(token); + advance(';'); + if (nexttoken.id === ';') { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, ')', ';'); + } + if (nexttoken.id !== ')') { + for (;;) { + expression(0, 'for'); + if (nexttoken.id !== ',') { + break; + } + comma(); + } + } + advance(')', t); + nospace(prevtoken, token); + block(true, true); + funct['(breakage)'] -= 1; + funct['(loopage)'] -= 1; + return this; + } + }).labelled = true; + + + stmt('break', function () { + var v = nexttoken.value; + + if (funct['(breakage)'] === 0) + warning("Unexpected '{a}'.", nexttoken, this.value); + + if (!option.asi) + nolinebreak(this); + + if (nexttoken.id !== ';') { + if (token.line === nexttoken.line) { + if (funct[v] !== 'label') { + warning("'{a}' is not a statement label.", nexttoken, v); + } else if (scope[v] !== funct) { + warning("'{a}' is out of scope.", nexttoken, v); + } + this.first = nexttoken; + advance(); + } + } + reachable('break'); + return this; + }).exps = true; + + + stmt('continue', function () { + var v = nexttoken.value; + + if (funct['(breakage)'] === 0) + warning("Unexpected '{a}'.", nexttoken, this.value); + + if (!option.asi) + nolinebreak(this); + + if (nexttoken.id !== ';') { + if (token.line === nexttoken.line) { + if (funct[v] !== 'label') { + warning("'{a}' is not a statement label.", nexttoken, v); + } else if (scope[v] !== funct) { + warning("'{a}' is out of scope.", nexttoken, v); + } + this.first = nexttoken; + advance(); + } + } else if (!funct['(loopage)']) { + warning("Unexpected '{a}'.", nexttoken, this.value); + } + reachable('continue'); + return this; + }).exps = true; + + + stmt('return', function () { + if (this.line === nexttoken.line) { + if (nexttoken.id === '(regexp)') + warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator."); + + if (nexttoken.id !== ';' && !nexttoken.reach) { + nonadjacent(token, nexttoken); + if (peek().value === "=" && !option.boss) { + warningAt("Did you mean to return a conditional instead of an assignment?", + token.line, token.character + 1); + } + this.first = expression(0); + } + } else if (!option.asi) { + nolinebreak(this); // always warn (Line breaking error) + } + reachable('return'); + return this; + }).exps = true; + + + stmt('throw', function () { + nolinebreak(this); + nonadjacent(token, nexttoken); + this.first = expression(20); + reachable('throw'); + return this; + }).exps = true; + +// Superfluous reserved words + + reserve('class'); + reserve('const'); + reserve('enum'); + reserve('export'); + reserve('extends'); + reserve('import'); + reserve('super'); + + reserve('let'); + reserve('yield'); + reserve('implements'); + reserve('interface'); + reserve('package'); + reserve('private'); + reserve('protected'); + reserve('public'); + reserve('static'); + + +// Parse JSON + + function jsonValue() { + + function jsonObject() { + var o = {}, t = nexttoken; + advance('{'); + if (nexttoken.id !== '}') { + for (;;) { + if (nexttoken.id === '(end)') { + error("Missing '}' to match '{' from line {a}.", + nexttoken, t.line); + } else if (nexttoken.id === '}') { + warning("Unexpected comma.", token); + break; + } else if (nexttoken.id === ',') { + error("Unexpected comma.", nexttoken); + } else if (nexttoken.id !== '(string)') { + warning("Expected a string and instead saw {a}.", + nexttoken, nexttoken.value); + } + if (o[nexttoken.value] === true) { + warning("Duplicate key '{a}'.", + nexttoken, nexttoken.value); + } else if ((nexttoken.value === '__proto__' && + !option.proto) || (nexttoken.value === '__iterator__' && + !option.iterator)) { + warning("The '{a}' key may produce unexpected results.", + nexttoken, nexttoken.value); + } else { + o[nexttoken.value] = true; + } + advance(); + advance(':'); + jsonValue(); + if (nexttoken.id !== ',') { + break; + } + advance(','); + } + } + advance('}'); + } + + function jsonArray() { + var t = nexttoken; + advance('['); + if (nexttoken.id !== ']') { + for (;;) { + if (nexttoken.id === '(end)') { + error("Missing ']' to match '[' from line {a}.", + nexttoken, t.line); + } else if (nexttoken.id === ']') { + warning("Unexpected comma.", token); + break; + } else if (nexttoken.id === ',') { + error("Unexpected comma.", nexttoken); + } + jsonValue(); + if (nexttoken.id !== ',') { + break; + } + advance(','); + } + } + advance(']'); + } + + switch (nexttoken.id) { + case '{': + jsonObject(); + break; + case '[': + jsonArray(); + break; + case 'true': + case 'false': + case 'null': + case '(number)': + case '(string)': + advance(); + break; + case '-': + advance('-'); + if (token.character !== nexttoken.from) { + warning("Unexpected space after '-'.", token); + } + adjacent(token, nexttoken); + advance('(number)'); + break; + default: + error("Expected a JSON value.", nexttoken); + } + } + + +// The actual JSHINT function itself. + + var itself = function (s, o, g) { + var a, i, k; + JSHINT.errors = []; + JSHINT.undefs = []; + predefined = Object.create(standard); + combine(predefined, g || {}); + if (o) { + a = o.predef; + if (a) { + if (Array.isArray(a)) { + for (i = 0; i < a.length; i += 1) { + predefined[a[i]] = true; + } + } else if (typeof a === 'object') { + k = Object.keys(a); + for (i = 0; i < k.length; i += 1) { + predefined[k[i]] = !!a[k[i]]; + } + } + } + option = o; + } else { + option = {}; + } + option.indent = option.indent || 4; + option.maxerr = option.maxerr || 50; + + tab = ''; + for (i = 0; i < option.indent; i += 1) { + tab += ' '; + } + indent = 1; + global = Object.create(predefined); + scope = global; + funct = { + '(global)': true, + '(name)': '(global)', + '(scope)': scope, + '(breakage)': 0, + '(loopage)': 0 + }; + functions = [funct]; + urls = []; + stack = null; + member = {}; + membersOnly = null; + implied = {}; + inblock = false; + lookahead = []; + jsonmode = false; + warnings = 0; + lex.init(s); + prereg = true; + directive = {}; + + prevtoken = token = nexttoken = syntax['(begin)']; + assume(); + + // combine the passed globals after we've assumed all our options + combine(predefined, g || {}); + + try { + advance(); + switch (nexttoken.id) { + case '{': + case '[': + option.laxbreak = true; + jsonmode = true; + jsonValue(); + break; + default: + directives(); + if (directive["use strict"] && !option.globalstrict) { + warning("Use the function form of \"use strict\".", prevtoken); + } + + statements(); + } + advance('(end)'); + + var markDefined = function (name, context) { + do { + if (typeof context[name] === 'string') { + // JSHINT marks unused variables as 'unused' and + // unused function declaration as 'unction'. This + // code changes such instances back 'var' and + // 'closure' so that the code in JSHINT.data() + // doesn't think they're unused. + + if (context[name] === 'unused') + context[name] = 'var'; + else if (context[name] === 'unction') + context[name] = 'closure'; + + return true; + } + + context = context['(context)']; + } while (context); + + return false; + }; + + var clearImplied = function (name, line) { + if (!implied[name]) + return; + + var newImplied = []; + for (var i = 0; i < implied[name].length; i += 1) { + if (implied[name][i] !== line) + newImplied.push(implied[name][i]); + } + + if (newImplied.length === 0) + delete implied[name]; + else + implied[name] = newImplied; + }; + + // Check queued 'x is not defined' instances to see if they're still undefined. + for (i = 0; i < JSHINT.undefs.length; i += 1) { + k = JSHINT.undefs[i].slice(0); + + if (markDefined(k[2].value, k[0])) { + clearImplied(k[2].value, k[2].line); + } else { + warning.apply(warning, k.slice(1)); + } + } + } catch (e) { + if (e) { + var nt = nexttoken || {}; + JSHINT.errors.push({ + raw : e.raw, + reason : e.message, + line : e.line || nt.line, + character : e.character || nt.from + }, null); + } + } + + return JSHINT.errors.length === 0; + }; + + // Data summary. + itself.data = function () { + + var data = { functions: [], options: option }, fu, globals, implieds = [], f, i, j, + members = [], n, unused = [], v; + if (itself.errors.length) { + data.errors = itself.errors; + } + + if (jsonmode) { + data.json = true; + } + + for (n in implied) { + if (is_own(implied, n)) { + implieds.push({ + name: n, + line: implied[n] + }); + } + } + if (implieds.length > 0) { + data.implieds = implieds; + } + + if (urls.length > 0) { + data.urls = urls; + } + + globals = Object.keys(scope); + if (globals.length > 0) { + data.globals = globals; + } + for (i = 1; i < functions.length; i += 1) { + f = functions[i]; + fu = {}; + for (j = 0; j < functionicity.length; j += 1) { + fu[functionicity[j]] = []; + } + for (n in f) { + if (is_own(f, n) && n.charAt(0) !== '(') { + v = f[n]; + if (v === 'unction') { + v = 'unused'; + } + if (Array.isArray(fu[v])) { + fu[v].push(n); + if (v === 'unused') { + unused.push({ + name: n, + line: f['(line)'], + 'function': f['(name)'] + }); + } + } + } + } + for (j = 0; j < functionicity.length; j += 1) { + if (fu[functionicity[j]].length === 0) { + delete fu[functionicity[j]]; + } + } + fu.name = f['(name)']; + fu.param = f['(params)']; + fu.line = f['(line)']; + fu.last = f['(last)']; + data.functions.push(fu); + } + + if (unused.length > 0) { + data.unused = unused; + } + + members = []; + for (n in member) { + if (typeof member[n] === 'number') { + data.member = member; + break; + } + } + + return data; + }; + + itself.report = function (option) { + var data = itself.data(); + + var a = [], c, e, err, f, i, k, l, m = '', n, o = [], s; + + function detail(h, array) { + var b, i, singularity; + if (array) { + o.push('

' + h + ' '); + array = array.sort(); + for (i = 0; i < array.length; i += 1) { + if (array[i] !== singularity) { + singularity = array[i]; + o.push((b ? ', ' : '') + singularity); + b = true; + } + } + o.push('

'); + } + } + + + if (data.errors || data.implieds || data.unused) { + err = true; + o.push('

Error:'); + if (data.errors) { + for (i = 0; i < data.errors.length; i += 1) { + c = data.errors[i]; + if (c) { + e = c.evidence || ''; + o.push('

Problem' + (isFinite(c.line) ? ' at line ' + + c.line + ' character ' + c.character : '') + + ': ' + c.reason.entityify() + + '

' + + (e && (e.length > 80 ? e.slice(0, 77) + '...' : + e).entityify()) + '

'); + } + } + } + + if (data.implieds) { + s = []; + for (i = 0; i < data.implieds.length; i += 1) { + s[i] = '' + data.implieds[i].name + ' ' + + data.implieds[i].line + ''; + } + o.push('

Implied global: ' + s.join(', ') + '

'); + } + + if (data.unused) { + s = []; + for (i = 0; i < data.unused.length; i += 1) { + s[i] = '' + data.unused[i].name + ' ' + + data.unused[i].line + '

' +
+                        data.unused[i]['function'] + '

'; + } + o.push('

Unused variable: ' + s.join(', ') + '

'); + } + if (data.json) { + o.push('

JSON: bad.

'); + } + o.push('

'); + } + + if (!option) { + + o.push('

'); + + if (data.urls) { + detail("URLs
", data.urls, '
'); + } + + if (data.json && !err) { + o.push('

JSON: good.

'); + } else if (data.globals) { + o.push('

Global ' + + data.globals.sort().join(', ') + '

'); + } else { + o.push('

No new global variables introduced.

'); + } + + for (i = 0; i < data.functions.length; i += 1) { + f = data.functions[i]; + + o.push('

' + f.line + '-' + + f.last + ' ' + (f.name || '') + '(' + + (f.param ? f.param.join(', ') : '') + ')

'); + detail('Unused', f.unused); + detail('Closure', f.closure); + detail('Variable', f['var']); + detail('Exception', f.exception); + detail('Outer', f.outer); + detail('Global', f.global); + detail('Label', f.label); + } + + if (data.member) { + a = Object.keys(data.member); + if (a.length) { + a = a.sort(); + m = '

/*members ';
+                    l = 10;
+                    for (i = 0; i < a.length; i += 1) {
+                        k = a[i];
+                        n = k.name();
+                        if (l + n.length > 72) {
+                            o.push(m + '
');
+                            m = '    ';
+                            l = 1;
+                        }
+                        l += n.length + 2;
+                        if (data.member[k] === 1) {
+                            n = '' + n + '';
+                        }
+                        if (i < a.length - 1) {
+                            n += ', ';
+                        }
+                        m += n;
+                    }
+                    o.push(m + '
*/

'); + } + o.push('

'); + } + } + return o.join(''); + }; + + itself.jshint = itself; + + return itself; +}()); + +// Make JSHINT a Node module, if possible. +if (typeof exports === 'object' && exports) + exports.JSHINT = JSHINT; -- cgit v1.2.3