diff --git a/Support/bin/jshint.js b/Support/bin/jshint.js deleted file mode 100644 index d8d03e2..0000000 --- a/Support/bin/jshint.js +++ /dev/null @@ -1,4557 +0,0 @@ -/*! - * 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, - character: NUMBER, - last: NUMBER, - lastcharacter: 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)", "(character)", "(context)", "(error)", "(global)", "(identifier)", "(last)", - "(lastcharacter)", "(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, DOMParser, 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, MessageChannel, MessageEvent, MessagePort, - MoveAnimation, MooTools, Native, NEGATIVE_INFINITY, Node, NodeFilter, 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, XMLSerializer, - XPathEvaluator, XPathException, XPathExpression, XPathNamespace, XPathNSResolver, XPathResult, - "\\", a, addEventListener, address, alert, apply, applicationCache, arguments, arity, asi, atob, - b, basic, basicToken, bitwise, block, blur, boolOptions, boss, browser, btoa, c, call, callee, - caller, camelcase, 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, eqeq, 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, lastcharacter, 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, quotmark, 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, vars, version, WebSocket, withstmt, white, window, windows, 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 - camelcase : true, // if identifiers should be required in camel case - 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. - withstmt : true, // if with statements should be allowed - white : true, // if strict whitespace rules apply - wsh : true // if the Windows Scripting Host environment globals - // should be predefined - }, - - // These are the JSHint options that can take any value - // (we use this object to detect invalid options) - valOptions = { - maxlen: false, - indent: false, - maxerr: false, - predef: false, - quotmark: false //'single'|'double'|true - }, - - // These are JSHint boolean options which are shared with JSLint - // where the definition in JSHint is opposite JSLint - invertedOptions = { - bitwise : true, - forin : true, - newcap : true, - nomen : true, - plusplus : true, - regexp : true, - undef : true, - white : true, - - // Inverted and renamed, use JSHint name here - eqeqeq : true, - onevar : true - }, - - // These are JSHint boolean options which are shared with JSLint - // where the name has been changed but the effect is unchanged - renamedOptions = { - eqeq : "eqeqeq", - vars : "onevar", - windows : "wsh" - }, - - - // 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, - atob : false, - blur : false, - btoa : false, - clearInterval : false, - clearTimeout : false, - close : false, - closed : false, - DataView : false, - DOMParser : 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, - MessageChannel : false, - MessageEvent : false, - MessagePort : false, - moveBy : false, - moveTo : false, - name : false, - Node : false, - NodeFilter : 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, - XMLSerializer : 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 - }, - - quotmark, - - 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); - } - - function checkOption(name, t) { - if (valOptions[name] === undefined && boolOptions[name] === undefined) { - warning("Bad option: '" + name + "'.", t); - } - } - -// 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); - option.globalstrict = true; - } - - 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. - // Tabs and one space followed by block comment is allowed. - 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 = option.trailing && s.match(/^(.*?)\s+$/); - if (tw && !/^\s+$/.test(s)) { - warningAt("Trailing whitespace.", line, tw[1].length + 1); - } - 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); - } - } else if (option.camelcase && value.indexOf('_') > -1 && - !value.match(/^[A-Z0-9_]*$/)) { - warningAt("Identifier '{a}' is not in camel case.", - line, from, 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, n; - - 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); - } - - if (option.quotmark) { - if (option.quotmark === 'single' && x !== "'") { - warningAt("Strings must use singlequote.", - line, character); - } else if (option.quotmark === 'double' && x !== '"') { - warningAt("Strings must use doublequote.", - line, character); - } else if (option.quotmark === true) { - quotmark = quotmark || x; - if (quotmark !== x) { - warningAt("Mixed double and single quotes.", - 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); - n = s.charAt(j + 1); - 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 '0': - c = '\0'; - // Octal literals fail in strict mode - // check if the number is between 00 and 07 - // where 'n' is the token next to 'c' - if (n >= 0 && n <= 7 && directive["use strict"]) { - warningAt( - "Octal literals are not allowed in strict mode.", - line, character); - } - 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, tn, 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 (o === '/*jshint') { - checkOption(t.value, 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' || v.value === 'false') { - if (o === '/*jslint') { - tn = renamedOptions[t.value] || t.value; - obj[tn] = v.value === 'true'; - if (invertedOptions[tn] !== undefined) { - obj[tn] = !obj[tn]; - } - } else { - obj[t.value] = v.value === 'true'; - } - } 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, isObject = 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'; - isObject = token.value === 'Object'; - - // #527, new Foo.Array(), Foo.Array(), new Foo.Object(), Foo.Object() - // Line breaks in IfStatement heads exist to satisfy the checkJSHint - // "Line too long." error. - if (left && (left.value || (left.first && left.first.value))) { - // If the left.value is not "new", or the left.first.value is a "." - // then safely assume that this is not "new Array()" and possibly - // not "new Object()"... - if (left.value !== 'new' || - (left.first && left.first.value && left.first.value === '.')) { - isArray = false; - // ...In the case of Object, if the left.value and token.value - // are not equal, then safely assume that this not "new Object()" - if (left.value !== token.value) { - isObject = false; - } - } - } - - advance(); - if (isArray && token.id === '(' && nexttoken.id === ')') - warning("Use the array literal notation [].", token); - if (isObject && token.id === '(' && nexttoken.id === ')') - warning("Use the object 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); - } - - -// 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 === ',') { - return comma(); - } - - 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 '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, - '(character)': nexttoken.character, - '(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['(lastcharacter)'] = token.character; - 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; - - blockstmt('with', function () { - var t = nexttoken; - if (directive['use strict']) { - error("'with' is not allowed in strict mode.", token); - } else if (!option.withstmt) { - warning("Don't use 'with'.", token); - } - - advance('('); - nonadjacent(this, t); - nospace(); - expression(0); - advance(')', t); - nospace(prevtoken, token); - block(true, true); - - return this; - }); - - 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, x, - optionKeys, - newOptionObj = {}; - - 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]]; - } - } - } - optionKeys = Object.keys(o); - for (x = 0; x < optionKeys.length; x++) { - newOptionObj[optionKeys[x]] = o[optionKeys[x]]; - } - } - - option = newOptionObj; - - 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)']; - - // Check options - for (var name in o) { - if (is_own(o, name)) { - checkOption(name, token); - } - } - - assume(); - - // combine the passed globals after we've assumed all our options - combine(predefined, g || {}); - - //reset values - comma.first = true; - quotmark = undefined; - - 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((nexttoken && nexttoken.value !== '.') ? '(end)' : undefined); - - 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.character = f['(character)']; - fu.last = f['(last)']; - fu.lastcharacter = f['(lastcharacter)']; - 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; diff --git a/Support/bin/jshint.textmate.js b/Support/bin/jshint.textmate.js index 37b526c..26e8ad8 100644 --- a/Support/bin/jshint.textmate.js +++ b/Support/bin/jshint.textmate.js @@ -2,7 +2,7 @@ var QUICK = process.argv.indexOf('quick') >= 0 -var JSHINT = require('./jshint').JSHINT +var JSHINT = require('./jshint/stable/jshint').JSHINT var BS = require('./bs').BS var TextMate = require('./TextMate') diff --git a/Support/bin/jshint/shared/messages.js b/Support/bin/jshint/shared/messages.js new file mode 100644 index 0000000..ae55632 --- /dev/null +++ b/Support/bin/jshint/shared/messages.js @@ -0,0 +1,206 @@ +"use strict"; + +var _ = require("../underscore"); + +var errors = { + // JSHint options + E001: "Bad option: '{a}'.", + E002: "Bad option value.", + + // JSHint input + E003: "Expected a JSON value.", + E004: "Input is neither a string nor an array of strings.", + E005: "Input is empty.", + E006: "Unexpected early end of program.", + + // Strict mode + E007: "Missing \"use strict\" statement.", + E008: "Strict violation.", + E009: "Option 'validthis' can't be used in a global scope.", + E010: "'with' is not allowed in strict mode.", + + // Constants + E011: "const '{a}' has already been declared.", + E012: "const '{a}' is initialized to 'undefined'.", + E013: "Attempting to override '{a}' which is a constant.", + + // Regular expressions + E014: "A regular expression literal can be confused with '/='.", + E015: "Unclosed regular expression.", + E016: "Invalid regular expression.", + + // Tokens + E017: "Unclosed comment.", + E018: "Unbegun comment.", + E019: "Unmatched '{a}'.", + E020: "Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.", + E021: "Expected '{a}' and instead saw '{b}'.", + E022: "Line breaking error '{a}'.", + E023: "Missing '{a}'.", + E024: "Unexpected '{a}'.", + E025: "Missing ':' on a case clause.", + E026: "Missing '}' to match '{' from line {a}.", + E027: "Missing ']' to match '[' form line {a}.", + E028: "Illegal comma.", + E029: "Unclosed string.", + + // Everything else + E030: "Expected an identifier and instead saw '{a}'.", + E031: "Bad assignment.", // FIXME: Rephrase + E032: "Expected a small integer and instead saw '{a}'.", + E033: "Expected an operator and instead saw '{a}'.", + E034: "get/set are ES5 features.", + E035: "Missing property name.", + E036: "Expected to see a statement and instead saw a block.", + E037: "Constant {a} was not declared correctly.", + E038: "Variable {a} was not declared correctly.", + E039: "Function declarations are not invocable. Wrap the whole function invocation in parens.", + E040: "Each value should have its own case label.", + E041: "Unrecoverable syntax error.", + E042: "Stopping.", + E043: "Too many errors." +}; + +var warnings = { + W001: "'hasOwnProperty' is a really bad name.", + W002: "Value of '{a}' may be overwritten in IE.", + W003: "'{a}' was used before it was defined.", + W004: "'{a}' is already defined.", + W005: "A dot following a number can be confused with a decimal point.", + W006: "Confusing minuses.", + W007: "Confusing pluses.", + W008: "A leading decimal point can be confused with a dot: '{a}'.", + W009: "The array literal notation [] is preferrable.", + W010: "The object literal notation {} is preferrable.", + W011: "Unexpected space after '{a}'.", + W012: "Unexpected space before '{a}'.", + W013: "Missing space after '{a}'.", + W014: "Bad line breaking before '{a}'.", + W015: "Expected '{a}' to have an indentation at {b} instead at {c}.", + W016: "Unexpected use of '{a}'.", + W017: "Bad operand.", + W018: "Confusing use of '{a}'.", + W019: "Use the isNaN function to compare with NaN.", + W020: "Read only.", + W021: "'{a}' is a function.", + W022: "Do not assign to the exception parameter.", + W023: "Expected an identifier in an assignment and instead saw a function invocation.", + W024: "Expected an identifier and instead saw '{a}' (a reserved word).", + W025: "Missing name in function declaration.", + W026: "Inner functions should be listed at the top of the outer function.", + W027: "Unreachable '{a}' after '{b}'.", + W028: "Label '{a}' on {b} statement.", + W029: "Label '{a}' looks like a javascript url.", + W030: "Expected an assignment or function call and instead saw an expression.", + W031: "Do not use 'new' for side effects.", + W032: "Unnecessary semicolon.", + W033: "Missing semicolon.", + W034: "Unnecessary directive \"{a}\".", + W035: "Empty block.", + W036: "Unexpected /*member '{a}'.", + W037: "'{a}' is a statement label.", + W038: "'{a}' used out of scope.", + W039: "'{a}' is not allowed.", + W040: "Possible strict violation.", + W041: "Use '{a}' to compare with '{b}'.", + W042: "Avoid EOL escaping.", + W043: "Bad escaping of EOL. Use option multistr if needed.", + W044: "Bad escaping.", + W045: "Bad number '{a}'.", + W046: "Don't use extra leading zeros '{a}'.", + W047: "A trailing decimal point can be confused with a dot: '{a}'.", + W048: "Unexpected control character in regular expression.", + W049: "Unexpected escaped character '{a}' in regular expression.", + W050: "JavaScript URL.", + W051: "Variables should not be deleted.", + W052: "Unexpected '{a}'.", + W053: "Do not use {a} as a constructor.", + W054: "The Function constructor is a form of eval.", + W055: "A constructor name should start with an uppercase letter.", + W056: "Bad constructor.", + W057: "Weird construction. Is 'new' unnecessary?", + W058: "Missing '()' invoking a constructor.", + W059: "Avoid arguments.{a}.", + W060: "document.write can be a form of eval.", + W061: "eval can be harmful.", + W062: "Wrap an immediate function invocation in parens " + + "to assist the reader in understanding that the expression " + + "is the result of a function, and not the function itself.", + W063: "Math is not a function.", + W064: "Missing 'new' prefix when invoking a constructor.", + W065: "Missing radix parameter.", + W066: "Implied eval. Consider passing a function instead of a string.", + W067: "Bad invocation.", + W068: "Wrapping non-IIFE function literals in parens is unnecessary.", + W069: "['{a}'] is better written in dot notation.", + W070: "Extra comma. (it breaks older versions of IE)", + W071: "This function has too many statements. ({a})", + W072: "This function has too many parameters. ({a})", + W073: "Blocks are nested too deeply. ({a})", + W074: "This function's cyclomatic complexity is too high. ({a})", + W075: "Duplicate key '{a}'.", + W076: "Unexpected parameter '{a}' in get {b} function.", + W077: "Expected a single parameter in set {a} function.", + W078: "Setter is defined without getter.", + W079: "Redefinition of '{a}'.", + W080: "It's not necessary to initialize '{a}' to 'undefined'.", + W081: "Too many var statements.", + W082: "Function declarations should not be placed in blocks. " + + "Use a function expression or move the statement to the top of " + + "the outer function.", + W083: "Don't make functions within a loop.", + W084: "Expected a conditional expression and instead saw an assignment.", + W085: "Don't use 'with'.", + W086: "Expected a 'break' statement before '{a}'.", + W087: "Forgotten 'debugger' statement?", + W088: "Creating global 'for' variable. Should be 'for (var {a} ...'.", + W089: "The body of a for in should be wrapped in an if statement to filter " + + "unwanted properties from the prototype.", + W090: "'{a}' is not a statement label.", + W091: "'{a}' is out of scope.", + W092: "Wrap the /regexp/ literal in parens to disambiguate the slash operator.", + W093: "Did you mean to return a conditional instead of an assignment?", + W094: "Unexpected comma.", + W095: "Expected a string and instead saw {a}.", + W096: "The '{a}' key may produce unexpected results.", + W097: "Use the function form of \"use strict\".", + W098: "'{a}' is defined but never used.", + W099: "Mixed spaces and tabs.", + W100: "This character may get silently deleted by one or more browsers.", + W101: "Line is too long.", + W102: "Trailing whitespace.", + W103: "The '{a}' property is deprecated.", + W104: "'{a}' is only available in JavaScript 1.7.", + W105: "Unexpected {a} in '{b}'.", + W106: "Identifier '{a}' is not in camel case.", + W107: "Script URL.", + W108: "Strings must use doublequote.", + W109: "Strings must use singlequote.", + W110: "Mixed double and single quotes.", + W112: "Unclosed string.", + W113: "Control character in string: {a}.", + W114: "Avoid {a}.", + W115: "Octal literals are not allowed in strict mode.", + W116: "Expected '{a}' and instead saw '{b}'.", + W117: "'{a}' is not defined.", +}; + +var info = { + I001: "Comma warnings can be turned off with 'laxcomma'." +}; + +exports.errors = {}; +exports.warnings = {}; +exports.info = {}; + +_.each(errors, function (desc, code) { + exports.errors[code] = { code: code, desc: desc }; +}); + +_.each(warnings, function (desc, code) { + exports.warnings[code] = { code: code, desc: desc }; +}); + +_.each(info, function (desc, code) { + exports.info[code] = { code: code, desc: desc }; +}); diff --git a/Support/bin/jshint/shared/vars.js b/Support/bin/jshint/shared/vars.js new file mode 100644 index 0000000..03b669e --- /dev/null +++ b/Support/bin/jshint/shared/vars.js @@ -0,0 +1,395 @@ +// jshint -W001 + +"use strict"; + +// Identifiers provided by the ECMAScript standard. + +exports.reservedVars = { + arguments : false, + NaN : false +}; + +exports.ecmaIdentifiers = { + 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, + Map : false, + Number : false, + Object : false, + parseInt : false, + parseFloat : false, + RangeError : false, + ReferenceError : false, + RegExp : false, + Set : false, + String : false, + SyntaxError : false, + TypeError : false, + URIError : false, + WeakMap : false +}; + +// Global variables commonly provided by a web browser environment. + +exports.browser = { + ArrayBuffer : false, + ArrayBufferView : false, + Audio : false, + Blob : false, + addEventListener : false, + applicationCache : false, + atob : false, + blur : false, + btoa : false, + clearInterval : false, + clearTimeout : false, + close : false, + closed : false, + DataView : false, + DOMParser : false, + defaultStatus : false, + document : false, + Element : 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, + MessageChannel : false, + MessageEvent : false, + MessagePort : false, + moveBy : false, + moveTo : false, + MutationObserver : false, + name : false, + Node : false, + NodeFilter : 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, + Uint8ClampedArray : false, + WebSocket : false, + window : false, + Worker : false, + XMLHttpRequest : false, + XMLSerializer : false, + XPathEvaluator : false, + XPathException : false, + XPathExpression : false, + XPathNamespace : false, + XPathNSResolver : false, + XPathResult : false +}; + +exports.devel = { + alert : false, + confirm: false, + console: false, + Debug : false, + opera : false, + prompt : false +}; + +exports.worker = { + importScripts: true, + postMessage : true, + self : true +}; + +// Widely adopted global names that are not part of ECMAScript standard +exports.nonstandard = { + escape : false, + unescape: false +}; + +// Globals provided by popular JavaScript environments. + +exports.couch = { + "require" : false, + respond : false, + getRow : false, + emit : false, + send : false, + start : false, + sum : false, + log : false, + exports : false, + module : false, + provides : false +}; + +exports.node = { + __filename : false, + __dirname : false, + Buffer : false, + DataView : false, + console : false, + exports : true, // In Node it is ok to exports = module.exports = foo(); + GLOBAL : false, + global : false, + module : false, + process : false, + require : false, + setTimeout : false, + clearTimeout : false, + setInterval : false, + clearInterval: false +}; + +exports.phantom = { + phantom : true, + require : true, + WebPage : true +}; + +exports.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 +}; + +exports.wsh = { + ActiveXObject : true, + Enumerator : true, + GetObject : true, + ScriptEngine : true, + ScriptEngineBuildVersion : true, + ScriptEngineMajorVersion : true, + ScriptEngineMinorVersion : true, + VBArray : true, + WSH : true, + WScript : true, + XDomainRequest : true +}; + +// Globals provided by popular JavaScript libraries. + +exports.dojo = { + dojo : false, + dijit : false, + dojox : false, + define : false, + "require": false +}; + +exports.jquery = { + "$" : false, + jQuery : false +}; + +exports.mootools = { + "$" : false, + "$$" : false, + Asset : false, + Browser : false, + Chain : false, + Class : false, + Color : false, + Cookie : false, + Core : false, + Document : false, + DomReady : false, + DOMEvent : false, + DOMReady : false, + Drag : false, + Element : false, + Elements : false, + Event : false, + Events : false, + Fx : false, + Group : false, + Hash : false, + HtmlTable : false, + Iframe : false, + IframeShim : false, + InputValidator: false, + instanceOf : false, + Keyboard : false, + Locale : false, + Mask : false, + MooTools : false, + Native : false, + Options : false, + OverText : false, + Request : false, + Scroller : false, + Slick : false, + Slider : false, + Sortables : false, + Spinner : false, + Swiff : false, + Tips : false, + Type : false, + typeOf : false, + URI : false, + Window : false +}; + +exports.prototypejs = { + "$" : false, + "$$" : 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 +}; + +exports.yui = { + YUI : false, + Y : false, + YUI_config: false +}; + diff --git a/Support/bin/jshint/stable/jshint.js b/Support/bin/jshint/stable/jshint.js new file mode 100644 index 0000000..6580e88 --- /dev/null +++ b/Support/bin/jshint/stable/jshint.js @@ -0,0 +1,3692 @@ +/*! + * JSHint, by JSHint Community. + * + * This file (and this file only) is licensed under the same slightly modified + * MIT license that JSLint is. It stops evil-doers everywhere: + * + * 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 quotmark:double */ + +var _ = require("../underscore"); +var events = require("events"); +var vars = require("../shared/vars.js"); +var messages = require("../shared/messages.js"); +var Lexer = require("./lex.js").Lexer; +var reg = require("./reg.js"); +var state = require("./state.js").state; +var style = require("./style.js"); + +// 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 + camelcase : true, // if identifiers should be required in camel case + 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 + gcl : true, // if JSHint should be compatible with Google Closure Linter + 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 + passfail : true, // if the scan should stop on first error + phantom : true, // if PhantomJS symbols should be allowed + 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 + 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. + withstmt : true, // if with statements should be allowed + white : true, // if strict whitespace rules apply + worker : true, // if Web Worker script symbols should be allowed + wsh : true, // if the Windows Scripting Host environment globals + // should be predefined + yui : true, // YUI variables should be predefined + + // Obsolete options + onecase : true, // if one case switch statements should be allowed + regexp : true, // if the . should not be allowed in regexp literals + regexdash : true // if unescaped first/last dash (-) inside brackets + // should be tolerated + }, + + // These are the JSHint options that can take any value + // (we use this object to detect invalid options) + valOptions = { + maxlen : false, + indent : false, + maxerr : false, + predef : false, + quotmark : false, //'single'|'double'|true + scope : false, + maxstatements: false, // {int} max statements per function + maxdepth : false, // {int} max nested block depth per function + maxparams : false, // {int} max params per function + maxcomplexity: false, // {int} max cyclomatic complexity per function + unused : true // warn if variables are unused. Available options: + // false - don't check for unused variables + // true - "vars" + check last function param + // "vars" - skip checking unused function params + // "strict" - "vars" + check all function params + }, + + // These are JSHint boolean options which are shared with JSLint + // where the definition in JSHint is opposite JSLint + invertedOptions = { + bitwise : true, + forin : true, + newcap : true, + nomen : true, + plusplus: true, + regexp : true, + undef : true, + white : true, + + // Inverted and renamed, use JSHint name here + eqeqeq : true, + onevar : true + }, + + // These are JSHint boolean options which are shared with JSLint + // where the name has been changed but the effect is unchanged + renamedOptions = { + eqeq : "eqeqeq", + vars : "onevar", + windows: "wsh" + }, + + declared, // Globals that were declared using /*global ... */ syntax. + exported, // Variables that are used outside of the current file. + + functionicity = [ + "closure", "exception", "global", "label", + "outer", "unused", "var" + ], + + funct, // The current function + functions, // All of the functions + + global, // The global scope + ignored, // Ignored warnings + implied, // Implied globals + inblock, + indent, + lookahead, + lex, + member, + membersOnly, + noreach, + predefined, // Global variables defined by option + + scope, // The current scope + stack, + unuseds, + urls, + useESNextSyntax, + warnings, + + extraModules = [], + emitter = new events.EventEmitter(); + + function checkOption(name, t) { + name = name.trim(); + + if (/^-W\d{3}$/g.test(name)) { + return true; + } + + if (valOptions[name] === undefined && boolOptions[name] === undefined) { + if (t.type !== "jslint" || renamedOptions[name] === undefined) { + error("E001", t, name); + return false; + } + } + + return true; + } + + function isString(obj) { + return Object.prototype.toString.call(obj) === "[object String]"; + } + + function isIdentifier(tkn, value) { + if (!tkn) + return false; + + if (!tkn.identifier || tkn.value !== value) + return false; + + return true; + } + + function isReserved(token) { + if (!token.reserved) { + return false; + } + + if (token.meta && token.meta.isFutureReservedWord) { + // ES3 FutureReservedWord in an ES5 environment. + if (state.option.es5 && !token.meta.es5) { + return false; + } + + // Some ES5 FutureReservedWord identifiers are active only + // within a strict mode environment. + if (token.meta.strictOnly) { + if (!state.option.strict && !state.directive["use strict"]) { + return false; + } + } + + if (token.isProperty) { + return false; + } + } + + return true; + } + + function supplant(str, data) { + return str.replace(/\{([^{}]*)\}/g, function (a, b) { + var r = data[b]; + return typeof r === "string" || typeof r === "number" ? r : a; + }); + } + + function combine(t, o) { + var n; + for (n in o) { + if (_.has(o, n) && !_.has(JSHINT.blacklist, n)) { + t[n] = o[n]; + } + } + } + + function updatePredefined() { + Object.keys(JSHINT.blacklist).forEach(function (key) { + delete predefined[key]; + }); + } + + function assume() { + if (state.option.couch) { + combine(predefined, vars.couch); + } + + if (state.option.rhino) { + combine(predefined, vars.rhino); + } + + if (state.option.phantom) { + combine(predefined, vars.phantom); + } + + if (state.option.prototypejs) { + combine(predefined, vars.prototypejs); + } + + if (state.option.node) { + combine(predefined, vars.node); + } + + if (state.option.devel) { + combine(predefined, vars.devel); + } + + if (state.option.dojo) { + combine(predefined, vars.dojo); + } + + if (state.option.browser) { + combine(predefined, vars.browser); + } + + if (state.option.nonstandard) { + combine(predefined, vars.nonstandard); + } + + if (state.option.jquery) { + combine(predefined, vars.jquery); + } + + if (state.option.mootools) { + combine(predefined, vars.mootools); + } + + if (state.option.worker) { + combine(predefined, vars.worker); + } + + if (state.option.wsh) { + combine(predefined, vars.wsh); + } + + if (state.option.esnext) { + useESNextSyntax(); + } + + if (state.option.globalstrict && state.option.strict !== false) { + state.option.strict = true; + } + + if (state.option.yui) { + combine(predefined, vars.yui); + } + } + + + // Produce an error warning. + function quit(code, line, chr) { + var percentage = Math.floor((line / state.lines.length) * 100); + var message = messages.errors[code].desc; + + throw { + name: "JSHintError", + line: line, + character: chr, + message: message + " (" + percentage + "% scanned).", + raw: message + }; + } + + function isundef(scope, code, token, a) { + return JSHINT.undefs.push([scope, code, token, a]); + } + + function warning(code, t, a, b, c, d) { + var ch, l, w, msg; + + if (/^W\d{3}$/.test(code)) { + if (ignored[code]) { + return; + } + + msg = messages.warnings[code]; + } else if (/E\d{3}/.test(code)) { + msg = messages.errors[code]; + } else if (/I\d{3}/.test(code)) { + msg = messages.info[code]; + } + + t = t || state.tokens.next; + if (t.id === "(end)") { // `~ + t = state.tokens.curr; + } + + l = t.line || 0; + ch = t.from || 0; + + w = { + id: "(error)", + raw: msg.desc, + code: msg.code, + evidence: state.lines[l - 1] || "", + line: l, + character: ch, + scope: JSHINT.scope, + a: a, + b: b, + c: c, + d: d + }; + + w.reason = supplant(msg.desc, w); + JSHINT.errors.push(w); + + if (state.option.passfail) { + quit("E042", l, ch); + } + + warnings += 1; + if (warnings >= state.option.maxerr) { + quit("E043", 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) { + 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); + } + + // Tracking of "internal" scripts, like eval containing a static string + function addInternalSrc(elem, src) { + var i; + i = { + id: "(internal)", + elem: elem, + value: src + }; + JSHINT.internals.push(i); + return i; + } + + function addlabel(t, type, tkn) { + // Define t in the current function in the current scope. + if (type === "exception") { + if (_.has(funct["(context)"], t)) { + if (funct[t] !== true && !state.option.node) { + warning("W002", state.tokens.next, t); + } + } + } + + if (_.has(funct, t) && !funct["(global)"]) { + if (funct[t] === true) { + if (state.option.latedef) + warning("W003", state.tokens.next, t); + } else { + if (!state.option.shadow && type !== "exception") { + warning("W004", state.tokens.next, t); + } + } + } + + funct[t] = type; + + if (tkn) { + funct["(tokens)"][t] = tkn; + } + + if (funct["(global)"]) { + global[t] = funct; + if (_.has(implied, t)) { + if (state.option.latedef) { + warning("W003", state.tokens.next, t); + } + + delete implied[t]; + } + } else { + scope[t] = funct; + } + } + + function doOption() { + var nt = state.tokens.next; + var body = nt.body.split(",").map(function (s) { return s.trim(); }); + var predef = {}; + + if (nt.type === "globals") { + body.forEach(function (g) { + g = g.split(":"); + var key = g[0]; + var val = g[1]; + + if (key.charAt(0) === "-") { + key = key.slice(1); + val = false; + + JSHINT.blacklist[key] = key; + updatePredefined(); + } else { + predef[key] = (val === "true"); + } + }); + + combine(predefined, predef); + + for (var key in predef) { + if (_.has(predef, key)) { + declared[key] = nt; + } + } + } + + if (nt.type === "exported") { + body.forEach(function (e) { + exported[e] = true; + }); + } + + if (nt.type === "members") { + membersOnly = membersOnly || {}; + + body.forEach(function (m) { + var ch1 = m.charAt(0); + var ch2 = m.charAt(m.length - 1); + + if (ch1 === ch2 && (ch1 === "\"" || ch1 === "'")) { + m = m + .substr(1, m.length - 2) + .replace("\\b", "\b") + .replace("\\t", "\t") + .replace("\\n", "\n") + .replace("\\v", "\v") + .replace("\\f", "\f") + .replace("\\r", "\r") + .replace("\\\\", "\\") + .replace("\\\"", "\""); + } + + membersOnly[m] = false; + }); + } + + var numvals = [ + "maxstatements", + "maxparams", + "maxdepth", + "maxcomplexity", + "maxerr", + "maxlen", + "indent" + ]; + + if (nt.type === "jshint" || nt.type === "jslint") { + body.forEach(function (g) { + g = g.split(":"); + var key = (g[0] || "").trim(); + var val = (g[1] || "").trim(); + + if (!checkOption(key, nt)) { + return; + } + + if (numvals.indexOf(key) >= 0) { + val = +val; + + if (typeof val !== "number" || !isFinite(val) || val <= 0 || Math.floor(val) !== val) { + error("E032", nt, g[1].trim()); + return; + } + + if (key === "indent") { + state.option["(explicitIndent)"] = true; + } + + state.option[key] = val; + return; + } + + if (key === "validthis") { + // `validthis` is valid only within a function scope. + if (funct["(global)"]) { + error("E009"); + } else { + if (val === "true" || val === "false") { + state.option.validthis = (val === "true"); + } else { + error("E002", nt); + } + } + return; + } + + if (key === "quotmark") { + switch (val) { + case "true": + case "false": + state.option.quotmark = (val === "true"); + break; + case "double": + case "single": + state.option.quotmark = val; + break; + default: + error("E002", nt); + } + return; + } + + if (key === "unused") { + switch (val) { + case "true": + state.option.unused = true; + break; + case "false": + state.option.unused = false; + break; + case "vars": + case "strict": + state.option.unused = val; + break; + default: + error("E002", nt); + } + return; + } + + if (/^-W\d{3}$/g.test(key)) { + ignored[key.slice(1)] = true; + return; + } + + var tn; + if (val === "true" || val === "false") { + if (nt.type === "jslint") { + tn = renamedOptions[key] || key; + state.option[tn] = (val === "true"); + + if (invertedOptions[tn] !== undefined) { + state.option[tn] = !state.option[tn]; + } + } else { + state.option[key] = (val === "true"); + } + + if (key === "newcap") { + state.option["(explicitNewcap)"] = true; + } + return; + } + + error("E002", nt); + }); + + 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 (state.tokens.curr.id) { + case "(number)": + if (state.tokens.next.id === ".") { + warning("W005", state.tokens.curr); + } + break; + case "-": + if (state.tokens.next.id === "-" || state.tokens.next.id === "--") { + warning("W006"); + } + break; + case "+": + if (state.tokens.next.id === "+" || state.tokens.next.id === "++") { + warning("W007"); + } + break; + } + + if (state.tokens.curr.type === "(string)" || state.tokens.curr.identifier) { + anonname = state.tokens.curr.value; + } + + if (id && state.tokens.next.id !== id) { + if (t) { + if (state.tokens.next.id === "(end)") { + error("E019", t, t.id); + } else { + error("E020", state.tokens.next, id, t.id, t.line, state.tokens.next.value); + } + } else if (state.tokens.next.type !== "(identifier)" || state.tokens.next.value !== id) { + warning("W116", state.tokens.next, id, state.tokens.next.value); + } + } + + state.tokens.prev = state.tokens.curr; + state.tokens.curr = state.tokens.next; + for (;;) { + state.tokens.next = lookahead.shift() || lex.token(); + + if (!state.tokens.next) { // No more tokens left, give up + quit("E041", state.tokens.curr.line); + } + + if (state.tokens.next.id === "(end)" || state.tokens.next.id === "(error)") { + return; + } + + if (state.tokens.next.isSpecial) { + doOption(); + } else { + if (state.tokens.next.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, isObject = false; + + if (state.tokens.next.id === "(end)") + error("E006", state.tokens.curr); + + advance(); + + if (initial) { + anonname = "anonymous"; + funct["(verb)"] = state.tokens.curr.value; + } + + if (initial === true && state.tokens.curr.fud) { + left = state.tokens.curr.fud(); + } else { + if (state.tokens.curr.nud) { + left = state.tokens.curr.nud(); + } else { + error("E030", state.tokens.curr, state.tokens.curr.id); + } + + while (rbp < state.tokens.next.lbp) { + isArray = state.tokens.curr.value === "Array"; + isObject = state.tokens.curr.value === "Object"; + + // #527, new Foo.Array(), Foo.Array(), new Foo.Object(), Foo.Object() + // Line breaks in IfStatement heads exist to satisfy the checkJSHint + // "Line too long." error. + if (left && (left.value || (left.first && left.first.value))) { + // If the left.value is not "new", or the left.first.value is a "." + // then safely assume that this is not "new Array()" and possibly + // not "new Object()"... + if (left.value !== "new" || + (left.first && left.first.value && left.first.value === ".")) { + isArray = false; + // ...In the case of Object, if the left.value and state.tokens.curr.value + // are not equal, then safely assume that this not "new Object()" + if (left.value !== state.tokens.curr.value) { + isObject = false; + } + } + } + + advance(); + + if (isArray && state.tokens.curr.id === "(" && state.tokens.next.id === ")") { + warning("W009", state.tokens.curr); + } + + if (isObject && state.tokens.curr.id === "(" && state.tokens.next.id === ")") { + warning("W010", state.tokens.curr); + } + + if (state.tokens.curr.led) { + left = state.tokens.curr.led(left); + } else { + error("E033", state.tokens.curr, state.tokens.curr.id); + } + } + } + return left; + } + + +// Functions for conformance of style. + + function adjacent(left, right) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + if (state.option.white) { + if (left.character !== right.from && left.line === right.line) { + left.from += (left.character - left.from); + warning("W011", left, left.value); + } + } + } + + function nobreak(left, right) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + if (state.option.white && (left.character !== right.from || left.line !== right.line)) { + warning("W012", right, right.value); + } + } + + function nospace(left, right) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + if (state.option.white && !left.comment) { + if (left.line === right.line) { + adjacent(left, right); + } + } + } + + function nonadjacent(left, right) { + if (state.option.white) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + + if (left.value === ";" && right.value === ";") { + return; + } + + if (left.line === right.line && left.character === right.from) { + left.from += (left.character - left.from); + warning("W013", left, left.value); + } + } + } + + function nobreaknonadjacent(left, right) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + if (!state.option.laxbreak && left.line !== right.line) { + warning("W014", right, right.id); + } else if (state.option.white) { + left = left || state.tokens.curr; + right = right || state.tokens.next; + if (left.character === right.from) { + left.from += (left.character - left.from); + warning("W013", left, left.value); + } + } + } + + function indentation(bias) { + if (!state.option.white && !state.option["(explicitIndent)"]) { + return; + } + + if (state.tokens.next.id === "(end)") { + return; + } + + var i = indent + (bias || 0); + if (state.tokens.next.from !== i) { + warning("W015", state.tokens.next, state.tokens.next.value, i, state.tokens.next.from); + } + } + + function nolinebreak(t) { + t = t || state.tokens.curr; + if (t.line !== state.tokens.next.line) { + warning("E022", t, t.value); + } + } + + + function comma(opts) { + opts = opts || {}; + + if (state.tokens.curr.line !== state.tokens.next.line) { + if (!state.option.laxcomma) { + if (comma.first) { + warning("I001"); + comma.first = false; + } + warning("W014", state.tokens.curr, state.tokens.next.id); + } + } else if (!state.tokens.curr.comment && + state.tokens.curr.character !== state.tokens.next.from && state.option.white) { + state.tokens.curr.from += (state.tokens.curr.character - state.tokens.curr.from); + warning("W011", state.tokens.curr, state.tokens.curr.value); + } + + advance(","); + + // TODO: This is a temporary solution to fight against false-positives in + // arrays and objects with trailing commas (see GH-363). The best solution + // would be to extract all whitespace rules out of parser. + + if (state.tokens.next.value !== "]" && state.tokens.next.value !== "}") { + nonadjacent(state.tokens.curr, state.tokens.next); + } + + if (state.tokens.next.identifier) { + // Keywords that cannot follow a comma operator. + switch (state.tokens.next.value) { + case "break": + case "case": + case "catch": + case "continue": + case "default": + case "do": + case "else": + case "finally": + case "for": + case "if": + case "in": + case "instanceof": + case "return": + case "switch": + case "throw": + case "try": + case "var": + case "while": + case "with": + error("E024", state.tokens.next, state.tokens.next.value); + return; + } + } + + if (state.tokens.next.type === "(punctuator)") { + switch (state.tokens.next.value) { + case "}": + case "]": + case ",": + if (opts.allowTrailing) { + return; + } + + /* falls through */ + case ")": + error("E024", state.tokens.next, state.tokens.next.value); + } + } + } + + // Functional constructors for making the symbols that will be inherited by + // tokens. + + function symbol(s, p) { + var x = state.syntax[s]; + if (!x || typeof x !== "object") { + state.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 (state.option.plusplus) { + warning("W016", this, this.id); + } else if ((!this.right.identifier || isReserved(this.right)) && + this.right.id !== "." && this.right.id !== "[") { + warning("W017", this); + } + } + return this; + }; + return x; + } + + function type(s, f) { + var x = delim(s); + x.type = s; + x.nud = f; + return x; + } + + function reserve(name, func) { + var x = type(name, func); + x.identifier = true; + x.reserved = true; + return x; + } + + function FutureReservedWord(name, meta) { + var x = type(name, function () { + return this; + }); + + meta = meta || {}; + meta.isFutureReservedWord = true; + + x.value = name; + x.identifier = true; + x.reserved = true; + x.meta = meta; + + 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(state.tokens.prev, state.tokens.curr); + nonadjacent(state.tokens.curr, state.tokens.next); + } + if (s === "in" && left.id === "!") { + warning("W018", 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(state.tokens.prev, state.tokens.curr); + nonadjacent(state.tokens.curr, state.tokens.next); + var right = expression(100); + + if (isIdentifier(left, "NaN") || isIdentifier(right, "NaN")) { + warning("W019", this); + } else if (f) { + f.apply(this, [left, right]); + } + + if (!left || !right) { + quit("E041", state.tokens.curr.line); + } + + if (left.id === "!") { + warning("W018", left, "!"); + } + + if (right.id === "!") { + warning("W018", 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" && !state.option.eqnull) || + node.type === "true" || + node.type === "false" || + node.type === "undefined"); + } + + function assignop(s) { + symbol(s, 20).exps = true; + + return infix(s, function (left, that) { + that.left = left; + + if (predefined[left.value] === false && + scope[left.value]["(global)"] === true) { + warning("W020", left); + } else if (left["function"]) { + warning("W021", left, left.value); + } + + if (left) { + if (state.option.esnext && funct[left.value] === "const") { + error("E013", left, left.value); + } + + if (left.id === "." || left.id === "[") { + if (!left.left || left.left.value === "arguments") { + warning("E031", that); + } + that.right = expression(19); + return that; + } else if (left.identifier && !isReserved(left)) { + if (funct[left.value] === "exception") { + warning("W022", left); + } + that.right = expression(19); + return that; + } + + if (left === state.syntax["function"]) { + warning("W023", state.tokens.curr); + } + } + + error("E031", that); + }, 20); + } + + + function bitwise(s, f, p) { + var x = symbol(s, p); + reserveName(x); + x.led = (typeof f === "function") ? f : function (left) { + if (state.option.bitwise) { + warning("W016", 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 (state.option.bitwise) { + warning("W016", that, that.id); + } + nonadjacent(state.tokens.prev, state.tokens.curr); + nonadjacent(state.tokens.curr, state.tokens.next); + if (left) { + if (left.id === "." || left.id === "[" || + (left.identifier && !isReserved(left))) { + expression(19); + return that; + } + if (left === state.syntax["function"]) { + warning("W023", state.tokens.curr); + } + return that; + } + error("E031", that); + }, 20); + } + + + function suffix(s) { + var x = symbol(s, 150); + + x.led = function (left) { + if (state.option.plusplus) { + warning("W016", this, this.id); + } else if ((!left.identifier || isReserved(left)) && left.id !== "." && left.id !== "[") { + warning("W017", this); + } + + this.left = left; + return this; + }; + return x; + } + + // fnparam means that this identifier is being defined as a function + // argument (see identifier()) + // prop means that this identifier is that of an object property + + function optionalidentifier(fnparam, prop) { + if (!state.tokens.next.identifier) { + return; + } + + advance(); + + var curr = state.tokens.curr; + var meta = curr.meta || {}; + var val = state.tokens.curr.value; + + if (!isReserved(curr)) { + return val; + } + + if (prop) { + if (state.option.es5 || meta.isFutureReservedWord) { + return val; + } + } + + if (fnparam && val === "undefined") { + return val; + } + + warning("W024", state.tokens.curr, state.tokens.curr.id); + return val; + } + + // fnparam means that this identifier is being defined as a function + // argument + // prop means that this identifier is that of an object property + function identifier(fnparam, prop) { + var i = optionalidentifier(fnparam, prop); + if (i) { + return i; + } + if (state.tokens.curr.id === "function" && state.tokens.next.id === "(") { + warning("W025"); + } else { + error("E030", state.tokens.next, state.tokens.next.value); + } + } + + + function reachable(s) { + var i = 0, t; + if (state.tokens.next.id !== ";" || noreach) { + return; + } + for (;;) { + t = peek(i); + if (t.reach) { + return; + } + if (t.id !== "(endline)") { + if (t.id === "function") { + if (!state.option.latedef) { + break; + } + + warning("W026", t); + break; + } + + warning("W027", t, t.value, s); + break; + } + i += 1; + } + } + + + function statement(noindent) { + var i = indent, r, s = scope, t = state.tokens.next; + + if (t.id === ";") { + advance(";"); + return; + } + + // Is this a labelled statement? + var res = isReserved(t); + + // We're being more tolerant here: if someone uses + // a FutureReservedWord as a label, we warn but proceed + // anyway. + + if (res && t.meta && t.meta.isFutureReservedWord) { + warning("W024", t, t.id); + res = false; + } + + if (t.identifier && !res && peek().id === ":") { + advance(); + advance(":"); + scope = Object.create(s); + addlabel(t.value, "label"); + + if (!state.tokens.next.labelled && state.tokens.next.value !== "{") { + warning("W028", state.tokens.next, t.value, state.tokens.next.value); + } + + if (reg.javascriptURL.test(t.value + ":")) { + warning("W029", t, t.value); + } + + state.tokens.next.label = t.value; + t = state.tokens.next; + } + + // Is it a lonely block? + + if (t.id === "{") { + block(true, true); + return; + } + + // Parse the statement. + + if (!noindent) { + indentation(); + } + r = expression(0, true); + + // Look for the final semicolon. + + if (!t.block) { + if (!state.option.expr && (!r || !r.exps)) { + warning("W030", state.tokens.curr); + } else if (state.option.nonew && r.id === "(" && r.left.id === "new") { + warning("W031", t); + } + + if (state.tokens.next.id === ",") { + return comma(); + } + + if (state.tokens.next.id !== ";") { + if (!state.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 (!state.option.lastsemic || state.tokens.next.id !== "}" || + state.tokens.next.line !== state.tokens.curr.line) { + warningAt("W033", state.tokens.curr.line, state.tokens.curr.character); + } + } + } else { + adjacent(state.tokens.curr, state.tokens.next); + advance(";"); + nonadjacent(state.tokens.curr, state.tokens.next); + } + } + + // Restore the indentation. + + indent = i; + scope = s; + return r; + } + + + function statements(startLine) { + var a = [], p; + + while (!state.tokens.next.reach && state.tokens.next.id !== "(end)") { + if (state.tokens.next.id === ";") { + p = peek(); + + if (!p || (p.id !== "(" && p.id !== "[")) { + warning("W032"); + } + + advance(";"); + } else { + a.push(statement(startLine === state.tokens.next.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 (state.tokens.next.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("W033", state.tokens.next); + } else { + p = pn; + } + } else if (p.id === "}") { + // Directive with no other statements, warn about missing semicolon + warning("W033", p); + } else if (p.id !== ";") { + break; + } + + indentation(); + advance(); + if (state.directive[state.tokens.curr.value]) { + warning("W034", state.tokens.curr, state.tokens.curr.value); + } + + if (state.tokens.curr.value === "use strict") { + if (!state.option["(explicitNewcap)"]) + state.option.newcap = true; + state.option.undef = true; + } + + // there's no directive negation, so always set to true + state.directive[state.tokens.curr.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 || !state.option.funcscope) + scope = Object.create(scope); + + nonadjacent(state.tokens.curr, state.tokens.next); + t = state.tokens.next; + + var metrics = funct["(metrics)"]; + metrics.nestedBlockDepth += 1; + metrics.verifyMaxNestedBlockDepthPerFunction(); + + if (state.tokens.next.id === "{") { + advance("{"); + line = state.tokens.curr.line; + if (state.tokens.next.id !== "}") { + indent += state.option.indent; + while (!ordinary && state.tokens.next.from > indent) { + indent += state.option.indent; + } + + if (isfunc) { + m = {}; + for (d in state.directive) { + if (_.has(state.directive, d)) { + m[d] = state.directive[d]; + } + } + directives(); + + if (state.option.strict && funct["(context)"]["(global)"]) { + if (!m["use strict"] && !state.directive["use strict"]) { + warning("E007"); + } + } + } + + a = statements(line); + + metrics.statementCount += a.length; + + if (isfunc) { + state.directive = m; + } + + indent -= state.option.indent; + if (line !== state.tokens.next.line) { + indentation(); + } + } else if (line !== state.tokens.next.line) { + indentation(); + } + advance("}", t); + indent = old_indent; + } else if (!ordinary) { + error("E021", state.tokens.next, "{", state.tokens.next.value); + } else { + if (!stmt || state.option.curly) { + warning("W116", state.tokens.next, "{", state.tokens.next.value); + } + + noreach = true; + indent += state.option.indent; + // test indentation only if statement is in new line + a = [statement(state.tokens.next.line === state.tokens.curr.line)]; + indent -= state.option.indent; + noreach = false; + } + funct["(verb)"] = null; + if (!ordinary || !state.option.funcscope) scope = s; + inblock = b; + if (ordinary && state.option.noempty && (!a || a.length === 0)) { + warning("W035"); + } + metrics.nestedBlockDepth -= 1; + return a; + } + + + function countMember(m) { + if (membersOnly && typeof membersOnly[m] !== "boolean") { + warning("W036", state.tokens.curr, m); + } + if (typeof member[m] === "number") { + member[m] += 1; + } else { + member[m] = 1; + } + } + + + function note_implied(tkn) { + var name = tkn.value, line = tkn.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; + }); + + state.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("W037", state.tokens.curr, 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 (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") || + (state.tokens.next && (state.tokens.next.value === "." || + state.tokens.next.value === "["))) { + + isundef(funct, "W117", state.tokens.curr, v); + } + } + + note_implied(state.tokens.curr); + } 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("W038", state.tokens.curr, v); + break; + case "label": + warning("W037", state.tokens.curr, 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("W039", state.tokens.curr, v); + note_implied(state.tokens.curr); + } 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. + // Attempting to subscript a null reference will throw an + // error, even within the typeof and delete operators + if (!(anonname === "typeof" || anonname === "delete") || + (state.tokens.next && + (state.tokens.next.value === "." || state.tokens.next.value === "["))) { + + isundef(funct, "W117", state.tokens.curr, v); + } + funct[v] = true; + note_implied(state.tokens.curr); + } 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": + funct[v] = s["(global)"] ? "global" : "outer"; + break; + case "label": + warning("W037", state.tokens.curr, v); + } + } + } + } + return this; + }, + led: function () { + error("E033", state.tokens.next, state.tokens.next.value); + } + }; + + type("(regexp)", function () { + return this; + }); + + // ECMAScript parser + + delim("(endline)"); + delim("(begin)"); + delim("(end)").reach = true; + delim("(error)").reach = true; + delim("}").reach = true; + delim(")"); + delim("]"); + delim("\"").reach = true; + delim("'").reach = true; + delim(";"); + delim(":").reach = true; + delim(","); + delim("#"); + + reserve("else"); + reserve("case").reach = true; + reserve("catch"); + reserve("default").reach = true; + reserve("finally"); + reservevar("arguments", function (x) { + if (state.directive["use strict"] && funct["(global)"]) { + warning("E008", x); + } + }); + reservevar("eval"); + reservevar("false"); + reservevar("Infinity"); + reservevar("null"); + reservevar("this", function (x) { + if (state.directive["use strict"] && !state.option.validthis && ((funct["(statement)"] && + funct["(name)"].charAt(0) > "Z") || funct["(global)"])) { + warning("W040", x); + } + }); + reservevar("true"); + reservevar("undefined"); + + assignop("=", "assign", 20); + assignop("+=", "assignadd", 20); + assignop("-=", "assignsub", 20); + assignop("*=", "assignmult", 20); + assignop("/=", "assigndiv", 20).nud = function () { + error("E014"); + }; + 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 = state.option.eqnull && (left.value === "null" || right.value === "null"); + + if (!eqnull && state.option.eqeqeq) + warning("W116", this, "===", "=="); + else if (isPoorRelation(left)) + warning("W041", this, "===", left.value); + else if (isPoorRelation(right)) + warning("W041", this, "===", right.value); + + return this; + }); + relation("==="); + relation("!=", function (left, right) { + var eqnull = state.option.eqnull && + (left.value === "null" || right.value === "null"); + + if (!eqnull && state.option.eqeqeq) { + warning("W116", this, "!==", "!="); + } else if (isPoorRelation(left)) { + warning("W041", this, "!==", left.value); + } else if (isPoorRelation(right)) { + warning("W041", 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 (!state.option.scripturl && reg.javascriptURL.test(left.value)) { + warning("W050", left); + } + return left; + } + that.left = left; + that.right = right; + return that; + }, 130); + prefix("+", "num"); + prefix("+++", function () { + warning("W007"); + this.right = expression(150); + this.arity = "unary"; + return this; + }); + infix("+++", function (left) { + warning("W007"); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix("-", "sub", 130); + prefix("-", "neg"); + prefix("---", function () { + warning("W006"); + this.right = expression(150); + this.arity = "unary"; + return this; + }); + infix("---", function (left) { + warning("W006"); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix("*", "mult", 140); + infix("/", "div", 140); + infix("%", "mod", 140); + + suffix("++", "postinc"); + prefix("++", "preinc"); + state.syntax["++"].exps = true; + + suffix("--", "postdec"); + prefix("--", "predec"); + state.syntax["--"].exps = true; + prefix("delete", function () { + var p = expression(0); + if (!p || (p.id !== "." && p.id !== "[")) { + warning("W051"); + } + this.first = p; + return this; + }).exps = true; + + prefix("~", function () { + if (state.option.bitwise) { + warning("W052", this, "~"); + } + expression(150); + return this; + }); + + prefix("!", function () { + this.right = expression(150); + this.arity = "unary"; + + if (!this.right) { // '!' followed by nothing? Give up. + quit("E041", this.line || 0); + } + + if (bang[this.right.id] === true) { + warning("W018", 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 "Number": + case "String": + case "Boolean": + case "Math": + case "JSON": + warning("W053", state.tokens.prev, c.value); + break; + case "Function": + if (!state.option.evil) { + warning("W054"); + } + break; + case "Date": + case "RegExp": + break; + default: + if (c.id !== "function") { + i = c.value.substr(0, 1); + if (state.option.newcap && (i < "A" || i > "Z") && !_.has(global, c.value)) { + warning("W055", state.tokens.curr); + } + } + } + } else { + if (c.id !== "." && c.id !== "[" && c.id !== "(") { + warning("W056", state.tokens.curr); + } + } + } else { + if (!state.option.supernew) + warning("W057", this); + } + adjacent(state.tokens.curr, state.tokens.next); + if (state.tokens.next.id !== "(" && !state.option.supernew) { + warning("W058", state.tokens.curr, state.tokens.curr.value); + } + this.first = c; + return this; + }); + state.syntax["new"].exps = true; + + prefix("void").exps = true; + + infix(".", function (left, that) { + adjacent(state.tokens.prev, state.tokens.curr); + nobreak(); + var m = identifier(false, true); + + if (typeof m === "string") { + countMember(m); + } + + that.left = left; + that.right = m; + + if (m && m === "hasOwnProperty" && state.tokens.next.value === "=") { + warning("W001"); + } + + if (left && left.value === "arguments" && (m === "callee" || m === "caller")) { + if (state.option.noarg) + warning("W059", left, m); + else if (state.directive["use strict"]) + error("E008"); + } else if (!state.option.evil && left && left.value === "document" && + (m === "write" || m === "writeln")) { + warning("W060", left); + } + + if (!state.option.evil && (m === "eval" || m === "execScript")) { + warning("W061"); + } + + return that; + }, 160, true); + + infix("(", function (left, that) { + if (state.tokens.prev.id !== "}" && state.tokens.prev.id !== ")") { + nobreak(state.tokens.prev, state.tokens.curr); + } + + nospace(); + if (state.option.immed && !left.immed && left.id === "function") { + warning("W062"); + } + + var n = 0; + var p = []; + + if (left) { + if (left.type === "(identifier)") { + if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) { + if ("Number String Boolean Date Object".indexOf(left.value) === -1) { + if (left.value === "Math") { + warning("W063", left); + } else if (state.option.newcap) { + warning("W064", left); + } + } + } + } + } + + if (state.tokens.next.id !== ")") { + for (;;) { + p[p.length] = expression(10); + n += 1; + if (state.tokens.next.id !== ",") { + break; + } + comma(); + } + } + + advance(")"); + nospace(state.tokens.prev, state.tokens.curr); + + if (typeof left === "object") { + if (left.value === "parseInt" && n === 1) { + warning("W065", state.tokens.curr); + } + if (!state.option.evil) { + if (left.value === "eval" || left.value === "Function" || + left.value === "execScript") { + warning("W061", left); + + if (p[0] && [0].id === "(string)") { + addInternalSrc(left, p[0].value); + } + } else if (p[0] && p[0].id === "(string)" && + (left.value === "setTimeout" || + left.value === "setInterval")) { + warning("W066", left); + addInternalSrc(left, p[0].value); + + // window.setTimeout/setInterval + } else if (p[0] && p[0].id === "(string)" && + left.value === "." && + left.left.value === "window" && + (left.right === "setTimeout" || + left.right === "setInterval")) { + warning("W066", left); + addInternalSrc(left, p[0].value); + } + } + if (!left.identifier && left.id !== "." && left.id !== "[" && + left.id !== "(" && left.id !== "&&" && left.id !== "||" && + left.id !== "?") { + warning("W067", left); + } + } + + that.left = left; + return that; + }, 155, true).exps = true; + + prefix("(", function () { + nospace(); + + if (state.tokens.next.id === "function") { + state.tokens.next.immed = true; + } + + var exprs = []; + + if (state.tokens.next.id !== ")") { + for (;;) { + exprs.push(expression(0)); + if (state.tokens.next.id !== ",") { + break; + } + comma(); + } + } + + advance(")", this); + nospace(state.tokens.prev, state.tokens.curr); + if (state.option.immed && exprs[0].id === "function") { + if (state.tokens.next.id !== "(" && + (state.tokens.next.id !== "." || (peek().value !== "call" && peek().value !== "apply"))) { + warning("W068", this); + } + } + + return exprs[0]; + }); + + infix("[", function (left, that) { + nobreak(state.tokens.prev, state.tokens.curr); + nospace(); + var e = expression(0), s; + if (e && e.type === "(string)") { + if (!state.option.evil && (e.value === "eval" || e.value === "execScript")) { + warning("W061", that); + } + + countMember(e.value); + if (!state.option.sub && reg.identifier.test(e.value)) { + s = state.syntax[e.value]; + if (!s || !isReserved(s)) { + warning("W069", state.tokens.prev, e.value); + } + } + } + advance("]", that); + + if (e && e.value === "hasOwnProperty" && state.tokens.next.value === "=") { + warning("W001"); + } + + nospace(state.tokens.prev, state.tokens.curr); + that.left = left; + that.right = e; + return that; + }, 160, true); + + prefix("[", function () { + var b = state.tokens.curr.line !== state.tokens.next.line; + this.first = []; + if (b) { + indent += state.option.indent; + if (state.tokens.next.from === indent + state.option.indent) { + indent += state.option.indent; + } + } + while (state.tokens.next.id !== "(end)") { + while (state.tokens.next.id === ",") { + if (!state.option.es5) + warning("W070"); + advance(","); + } + if (state.tokens.next.id === "]") { + break; + } + if (b && state.tokens.curr.line !== state.tokens.next.line) { + indentation(); + } + this.first.push(expression(10)); + if (state.tokens.next.id === ",") { + comma({ allowTrailing: true }); + if (state.tokens.next.id === "]" && !state.option.es5) { + warning("W070", state.tokens.curr); + break; + } + } else { + break; + } + } + if (b) { + indent -= state.option.indent; + indentation(); + } + advance("]", this); + return this; + }, 160); + + + function property_name() { + var id = optionalidentifier(false, true); + + if (!id) { + if (state.tokens.next.id === "(string)") { + id = state.tokens.next.value; + advance(); + } else if (state.tokens.next.id === "(number)") { + id = state.tokens.next.value.toString(); + advance(); + } + } + + if (id === "hasOwnProperty") { + warning("W001"); + } + + return id; + } + + + function functionparams() { + var next = state.tokens.next; + var params = []; + var ident; + + advance("("); + nospace(); + + if (state.tokens.next.id === ")") { + advance(")"); + return; + } + + for (;;) { + ident = identifier(true); + params.push(ident); + addlabel(ident, "unused", state.tokens.curr); + if (state.tokens.next.id === ",") { + comma(); + } else { + advance(")", next); + nospace(state.tokens.prev, state.tokens.curr); + return params; + } + } + } + + + function doFunction(name, statement) { + var f; + var oldOption = state.option; + var oldScope = scope; + + state.option = Object.create(state.option); + scope = Object.create(scope); + + funct = { + "(name)" : name || "\"" + anonname + "\"", + "(line)" : state.tokens.next.line, + "(character)": state.tokens.next.character, + "(context)" : funct, + "(breakage)" : 0, + "(loopage)" : 0, + "(metrics)" : createMetrics(state.tokens.next), + "(scope)" : scope, + "(statement)": statement, + "(tokens)" : {} + }; + + f = funct; + state.tokens.curr.funct = funct; + + functions.push(funct); + + if (name) { + addlabel(name, "function"); + } + + funct["(params)"] = functionparams(); + funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]); + + block(false, false, true); + + funct["(metrics)"].verifyMaxStatementsPerFunction(); + funct["(metrics)"].verifyMaxComplexityPerFunction(); + funct["(unusedOption)"] = state.option.unused; + + scope = oldScope; + state.option = oldOption; + funct["(last)"] = state.tokens.curr.line; + funct["(lastcharacter)"] = state.tokens.curr.character; + funct = funct["(context)"]; + + return f; + } + + function createMetrics(functionStartToken) { + return { + statementCount: 0, + nestedBlockDepth: -1, + ComplexityCount: 1, + verifyMaxStatementsPerFunction: function () { + if (state.option.maxstatements && + this.statementCount > state.option.maxstatements) { + warning("W071", functionStartToken, this.statementCount); + } + }, + + verifyMaxParametersPerFunction: function (params) { + params = params || []; + + if (state.option.maxparams && params.length > state.option.maxparams) { + warning("W072", functionStartToken, params.length); + } + }, + + verifyMaxNestedBlockDepthPerFunction: function () { + if (state.option.maxdepth && + this.nestedBlockDepth > 0 && + this.nestedBlockDepth === state.option.maxdepth + 1) { + warning("W073", null, this.nestedBlockDepth); + } + }, + + verifyMaxComplexityPerFunction: function () { + var max = state.option.maxcomplexity; + var cc = this.ComplexityCount; + if (max && cc > max) { + warning("W074", functionStartToken, cc); + } + } + }; + } + + function increaseComplexityCount() { + funct["(metrics)"].ComplexityCount += 1; + } + + // Parse assignments that were found instead of conditionals. + // For example: if (a = 1) { ... } + + function parseCondAssignment() { + switch (state.tokens.next.id) { + case "=": + case "+=": + case "-=": + case "*=": + case "%=": + case "&=": + case "|=": + case "^=": + case "/=": + if (!state.option.boss) { + warning("W084"); + } + + advance(state.tokens.next.id); + expression(20); + } + } + + + (function (x) { + x.nud = function () { + var b, f, i, p, t; + var props = {}; // All properties, including accessors + + function saveProperty(name, tkn) { + if (props[name] && _.has(props, name)) + warning("W075", state.tokens.next, i); + else + props[name] = {}; + + props[name].basic = true; + props[name].basictkn = tkn; + } + + function saveSetter(name, tkn) { + if (props[name] && _.has(props, name)) { + if (props[name].basic || props[name].setter) + warning("W075", state.tokens.next, i); + } else { + props[name] = {}; + } + + props[name].setter = true; + props[name].setterToken = tkn; + } + + function saveGetter(name) { + if (props[name] && _.has(props, name)) { + if (props[name].basic || props[name].getter) + warning("W075", state.tokens.next, i); + } else { + props[name] = {}; + } + + props[name].getter = true; + props[name].getterToken = state.tokens.curr; + } + + b = state.tokens.curr.line !== state.tokens.next.line; + if (b) { + indent += state.option.indent; + if (state.tokens.next.from === indent + state.option.indent) { + indent += state.option.indent; + } + } + + for (;;) { + if (state.tokens.next.id === "}") { + break; + } + + if (b) { + indentation(); + } + + if (state.tokens.next.value === "get" && peek().id !== ":") { + advance("get"); + + if (!state.option.es5) { + error("E034"); + } + + i = property_name(); + if (!i) { + error("E035"); + } + + saveGetter(i); + t = state.tokens.next; + adjacent(state.tokens.curr, state.tokens.next); + f = doFunction(); + p = f["(params)"]; + + if (p) { + warning("W076", t, p[0], i); + } + + adjacent(state.tokens.curr, state.tokens.next); + } else if (state.tokens.next.value === "set" && peek().id !== ":") { + advance("set"); + + if (!state.option.es5) { + error("E034"); + } + + i = property_name(); + if (!i) { + error("E035"); + } + + saveSetter(i, state.tokens.next); + t = state.tokens.next; + adjacent(state.tokens.curr, state.tokens.next); + f = doFunction(); + p = f["(params)"]; + + if (!p || p.length !== 1) { + warning("W077", t, i); + } + } else { + i = property_name(); + saveProperty(i, state.tokens.next); + + if (typeof i !== "string") { + break; + } + + advance(":"); + nonadjacent(state.tokens.curr, state.tokens.next); + expression(10); + } + + countMember(i); + if (state.tokens.next.id === ",") { + comma({ allowTrailing: true }); + if (state.tokens.next.id === ",") { + warning("W070", state.tokens.curr); + } else if (state.tokens.next.id === "}" && !state.option.es5) { + warning("W070", state.tokens.curr); + } + } else { + break; + } + } + if (b) { + indent -= state.option.indent; + indentation(); + } + advance("}", this); + + // Check for lonely setters if in the ES5 mode. + if (state.option.es5) { + for (var name in props) { + if (_.has(props, name) && props[name].setter && !props[name].getter) { + warning("W078", props[name].setterToken); + } + } + } + return this; + }; + x.fud = function () { + error("E036", state.tokens.curr); + }; + }(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(state.tokens.curr, state.tokens.next); + id = identifier(); + if (funct[id] === "const") { + warning("E011", null, id); + } + if (funct["(global)"] && predefined[id] === false) { + warning("W079", state.tokens.curr, id); + } + addlabel(id, "const"); + if (prefix) { + break; + } + name = state.tokens.curr; + this.first.push(state.tokens.curr); + + if (state.tokens.next.id !== "=") { + warning("E012", state.tokens.curr, id); + } + + if (state.tokens.next.id === "=") { + nonadjacent(state.tokens.curr, state.tokens.next); + advance("="); + nonadjacent(state.tokens.curr, state.tokens.next); + if (state.tokens.next.id === "undefined") { + warning("W080", state.tokens.curr, id); + } + if (peek(0).id === "=" && state.tokens.next.identifier) { + error("E037", state.tokens.next, state.tokens.next.value); + } + value = expression(0); + name.first = value; + } + + if (state.tokens.next.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)"] && state.option.onevar) { + warning("W081"); + } else if (!funct["(global)"]) { + funct["(onevar)"] = true; + } + + this.first = []; + + for (;;) { + nonadjacent(state.tokens.curr, state.tokens.next); + id = identifier(); + + if (state.option.esnext && funct[id] === "const") { + warning("E011", null, id); + } + + if (funct["(global)"] && predefined[id] === false) { + warning("W079", state.tokens.curr, id); + } + + addlabel(id, "unused", state.tokens.curr); + + if (prefix) { + break; + } + + name = state.tokens.curr; + this.first.push(state.tokens.curr); + + if (state.tokens.next.id === "=") { + nonadjacent(state.tokens.curr, state.tokens.next); + advance("="); + nonadjacent(state.tokens.curr, state.tokens.next); + if (state.tokens.next.id === "undefined") { + warning("W080", state.tokens.curr, id); + } + if (peek(0).id === "=" && state.tokens.next.identifier) { + error("E038", state.tokens.next, state.tokens.next.value); + } + value = expression(0); + name.first = value; + } + if (state.tokens.next.id !== ",") { + break; + } + comma(); + } + return this; + }); + varstatement.exps = true; + + blockstmt("function", function () { + if (inblock) { + warning("W082", state.tokens.curr); + + } + var i = identifier(); + if (state.option.esnext && funct[i] === "const") { + warning("E011", null, i); + } + adjacent(state.tokens.curr, state.tokens.next); + addlabel(i, "unction", state.tokens.curr); + + doFunction(i, { statement: true }); + if (state.tokens.next.id === "(" && state.tokens.next.line === state.tokens.curr.line) { + error("E039"); + } + return this; + }); + + prefix("function", function () { + var i = optionalidentifier(); + if (i || state.option.gcl) { + adjacent(state.tokens.curr, state.tokens.next); + } else { + nonadjacent(state.tokens.curr, state.tokens.next); + } + doFunction(i); + if (!state.option.loopfunc && funct["(loopage)"]) { + warning("W083"); + } + return this; + }); + + blockstmt("if", function () { + var t = state.tokens.next; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + expression(20); + parseCondAssignment(); + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + block(true, true); + if (state.tokens.next.id === "else") { + nonadjacent(state.tokens.curr, state.tokens.next); + advance("else"); + if (state.tokens.next.id === "if" || state.tokens.next.id === "switch") { + statement(true); + } else { + block(true, true); + } + } + return this; + }); + + blockstmt("try", function () { + var b; + + function doCatch() { + var oldScope = scope; + var e; + + advance("catch"); + nonadjacent(state.tokens.curr, state.tokens.next); + advance("("); + + scope = Object.create(oldScope); + + e = state.tokens.next.value; + if (state.tokens.next.type !== "(identifier)") { + e = null; + warning("E030", state.tokens.next, e); + } + + advance(); + advance(")"); + + funct = { + "(name)" : "(catch)", + "(line)" : state.tokens.next.line, + "(character)": state.tokens.next.character, + "(context)" : funct, + "(breakage)" : funct["(breakage)"], + "(loopage)" : funct["(loopage)"], + "(scope)" : scope, + "(statement)": false, + "(metrics)" : createMetrics(state.tokens.next), + "(catch)" : true, + "(tokens)" : {} + }; + + if (e) { + addlabel(e, "exception"); + } + + state.tokens.curr.funct = funct; + functions.push(funct); + + block(false); + + scope = oldScope; + + funct["(last)"] = state.tokens.curr.line; + funct["(lastcharacter)"] = state.tokens.curr.character; + funct = funct["(context)"]; + } + + block(false); + + if (state.tokens.next.id === "catch") { + increaseComplexityCount(); + doCatch(); + b = true; + } + + if (state.tokens.next.id === "finally") { + advance("finally"); + block(false); + return; + } else if (!b) { + error("E021", state.tokens.next, "catch", state.tokens.next.value); + } + + return this; + }); + + blockstmt("while", function () { + var t = state.tokens.next; + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + expression(20); + parseCondAssignment(); + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + block(true, true); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + }).labelled = true; + + blockstmt("with", function () { + var t = state.tokens.next; + if (state.directive["use strict"]) { + error("E010", state.tokens.curr); + } else if (!state.option.withstmt) { + warning("W085", state.tokens.curr); + } + + advance("("); + nonadjacent(this, t); + nospace(); + expression(0); + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + block(true, true); + + return this; + }); + + blockstmt("switch", function () { + var t = state.tokens.next, + g = false; + funct["(breakage)"] += 1; + advance("("); + nonadjacent(this, t); + nospace(); + this.condition = expression(20); + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + nonadjacent(state.tokens.curr, state.tokens.next); + t = state.tokens.next; + advance("{"); + nonadjacent(state.tokens.curr, state.tokens.next); + indent += state.option.indent; + this.cases = []; + + for (;;) { + switch (state.tokens.next.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 (!reg.fallsThrough.test(state.lines[state.tokens.next.line - 2])) { + warning("W086", state.tokens.curr, "case"); + } + } + indentation(-state.option.indent); + advance("case"); + this.cases.push(expression(20)); + increaseComplexityCount(); + g = true; + advance(":"); + funct["(verb)"] = "case"; + break; + case "default": + switch (funct["(verb)"]) { + case "break": + case "continue": + case "return": + case "throw": + break; + default: + // Do not display a warning if 'default' is the first statement or if + // there is a special /* falls through */ comment. + if (this.cases.length) { + if (!reg.fallsThrough.test(state.lines[state.tokens.next.line - 2])) { + warning("W086", state.tokens.curr, "default"); + } + } + } + indentation(-state.option.indent); + advance("default"); + g = true; + advance(":"); + break; + case "}": + indent -= state.option.indent; + indentation(); + advance("}", t); + funct["(breakage)"] -= 1; + funct["(verb)"] = undefined; + return; + case "(end)": + error("E023", state.tokens.next, "}"); + return; + default: + if (g) { + switch (state.tokens.curr.id) { + case ",": + error("E040"); + return; + case ":": + g = false; + statements(); + break; + default: + error("E025", state.tokens.curr); + return; + } + } else { + if (state.tokens.curr.id === ":") { + advance(":"); + error("E024", state.tokens.curr, ":"); + statements(); + } else { + error("E021", state.tokens.next, "case", state.tokens.next.value); + return; + } + } + } + } + }).labelled = true; + + stmt("debugger", function () { + if (!state.option.debug) { + warning("W087"); + } + return this; + }).exps = true; + + (function () { + var x = stmt("do", function () { + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + + this.first = block(true); + advance("while"); + var t = state.tokens.next; + nonadjacent(state.tokens.curr, t); + advance("("); + nospace(); + expression(20); + parseCondAssignment(); + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + }); + x.labelled = true; + x.exps = true; + }()); + + blockstmt("for", function () { + var s, t = state.tokens.next; + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + if (peek(state.tokens.next.id === "var" ? 1 : 0).id === "in") { + if (state.tokens.next.id === "var") { + advance("var"); + varstatement.fud.call(varstatement, true); + } else { + switch (funct[state.tokens.next.value]) { + case "unused": + funct[state.tokens.next.value] = "var"; + break; + case "var": + break; + default: + warning("W088", state.tokens.next, state.tokens.next.value); + } + advance(); + } + advance("in"); + expression(20); + advance(")", t); + s = block(true, true); + if (state.option.forin && s && (s.length > 1 || typeof s[0] !== "object" || + s[0].value !== "if")) { + warning("W089", this); + } + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + } else { + if (state.tokens.next.id !== ";") { + if (state.tokens.next.id === "var") { + advance("var"); + varstatement.fud.call(varstatement); + } else { + for (;;) { + expression(0, "for"); + if (state.tokens.next.id !== ",") { + break; + } + comma(); + } + } + } + nolinebreak(state.tokens.curr); + advance(";"); + if (state.tokens.next.id !== ";") { + expression(20); + parseCondAssignment(); + } + nolinebreak(state.tokens.curr); + advance(";"); + if (state.tokens.next.id === ";") { + error("E021", state.tokens.next, ")", ";"); + } + if (state.tokens.next.id !== ")") { + for (;;) { + expression(0, "for"); + if (state.tokens.next.id !== ",") { + break; + } + comma(); + } + } + advance(")", t); + nospace(state.tokens.prev, state.tokens.curr); + block(true, true); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + } + }).labelled = true; + + + stmt("break", function () { + var v = state.tokens.next.value; + + if (funct["(breakage)"] === 0) + warning("W052", state.tokens.next, this.value); + + if (!state.option.asi) + nolinebreak(this); + + if (state.tokens.next.id !== ";") { + if (state.tokens.curr.line === state.tokens.next.line) { + if (funct[v] !== "label") { + warning("W090", state.tokens.next, v); + } else if (scope[v] !== funct) { + warning("W091", state.tokens.next, v); + } + this.first = state.tokens.next; + advance(); + } + } + reachable("break"); + return this; + }).exps = true; + + + stmt("continue", function () { + var v = state.tokens.next.value; + + if (funct["(breakage)"] === 0) + warning("W052", state.tokens.next, this.value); + + if (!state.option.asi) + nolinebreak(this); + + if (state.tokens.next.id !== ";") { + if (state.tokens.curr.line === state.tokens.next.line) { + if (funct[v] !== "label") { + warning("W090", state.tokens.next, v); + } else if (scope[v] !== funct) { + warning("W091", state.tokens.next, v); + } + this.first = state.tokens.next; + advance(); + } + } else if (!funct["(loopage)"]) { + warning("W052", state.tokens.next, this.value); + } + reachable("continue"); + return this; + }).exps = true; + + + stmt("return", function () { + if (this.line === state.tokens.next.line) { + if (state.tokens.next.id === "(regexp)") + warning("W092"); + + if (state.tokens.next.id !== ";" && !state.tokens.next.reach) { + nonadjacent(state.tokens.curr, state.tokens.next); + this.first = expression(0); + + if (this.first.type === "(punctuator)" && this.first.value === "=" && !state.option.boss) { + warningAt("W093", this.first.line, this.first.character); + } + } + } else if (!state.option.asi) { + nolinebreak(this); // always warn (Line breaking error) + } + reachable("return"); + return this; + }).exps = true; + + + stmt("throw", function () { + nolinebreak(this); + nonadjacent(state.tokens.curr, state.tokens.next); + this.first = expression(20); + reachable("throw"); + return this; + }).exps = true; + + // Future Reserved Words + + FutureReservedWord("abstract"); + FutureReservedWord("boolean"); + FutureReservedWord("byte"); + FutureReservedWord("char"); + FutureReservedWord("class", { es5: true }); + FutureReservedWord("double"); + FutureReservedWord("enum", { es5: true }); + FutureReservedWord("export", { es5: true }); + FutureReservedWord("extends", { es5: true }); + FutureReservedWord("final"); + FutureReservedWord("float"); + FutureReservedWord("goto"); + FutureReservedWord("implements", { es5: true, strictOnly: true }); + FutureReservedWord("import", { es5: true }); + FutureReservedWord("int"); + FutureReservedWord("interface"); + FutureReservedWord("let", { es5: true, strictOnly: true }); + FutureReservedWord("long"); + FutureReservedWord("native"); + FutureReservedWord("package", { es5: true, strictOnly: true }); + FutureReservedWord("private", { es5: true, strictOnly: true }); + FutureReservedWord("protected", { es5: true, strictOnly: true }); + FutureReservedWord("public", { es5: true, strictOnly: true }); + FutureReservedWord("short"); + FutureReservedWord("static", { es5: true, strictOnly: true }); + FutureReservedWord("super", { es5: true }); + FutureReservedWord("synchronized"); + FutureReservedWord("throws"); + FutureReservedWord("transient"); + FutureReservedWord("volatile"); + FutureReservedWord("yield", { es5: true, strictOnly: true }); + + // Parse JSON + + function jsonValue() { + + function jsonObject() { + var o = {}, t = state.tokens.next; + advance("{"); + if (state.tokens.next.id !== "}") { + for (;;) { + if (state.tokens.next.id === "(end)") { + error("E026", state.tokens.next, t.line); + } else if (state.tokens.next.id === "}") { + warning("W094", state.tokens.curr); + break; + } else if (state.tokens.next.id === ",") { + error("E028", state.tokens.next); + } else if (state.tokens.next.id !== "(string)") { + warning("W095", state.tokens.next, state.tokens.next.value); + } + if (o[state.tokens.next.value] === true) { + warning("W075", state.tokens.next, state.tokens.next.value); + } else if ((state.tokens.next.value === "__proto__" && + !state.option.proto) || (state.tokens.next.value === "__iterator__" && + !state.option.iterator)) { + warning("W096", state.tokens.next, state.tokens.next.value); + } else { + o[state.tokens.next.value] = true; + } + advance(); + advance(":"); + jsonValue(); + if (state.tokens.next.id !== ",") { + break; + } + advance(","); + } + } + advance("}"); + } + + function jsonArray() { + var t = state.tokens.next; + advance("["); + if (state.tokens.next.id !== "]") { + for (;;) { + if (state.tokens.next.id === "(end)") { + error("E027", state.tokens.next, t.line); + } else if (state.tokens.next.id === "]") { + warning("W094", state.tokens.curr); + break; + } else if (state.tokens.next.id === ",") { + error("E028", state.tokens.next); + } + jsonValue(); + if (state.tokens.next.id !== ",") { + break; + } + advance(","); + } + } + advance("]"); + } + + switch (state.tokens.next.id) { + case "{": + jsonObject(); + break; + case "[": + jsonArray(); + break; + case "true": + case "false": + case "null": + case "(number)": + case "(string)": + advance(); + break; + case "-": + advance("-"); + if (state.tokens.curr.character !== state.tokens.next.from) { + warning("W011", state.tokens.curr); + } + adjacent(state.tokens.curr, state.tokens.next); + advance("(number)"); + break; + default: + error("E003", state.tokens.next); + } + } + + + // The actual JSHINT function itself. + var itself = function (s, o, g) { + var a, i, k, x; + var optionKeys; + var newOptionObj = {}; + + state.reset(); + + if (o && o.scope) { + JSHINT.scope = o.scope; + } else { + JSHINT.errors = []; + JSHINT.undefs = []; + JSHINT.internals = []; + JSHINT.blacklist = {}; + JSHINT.scope = "(main)"; + } + + predefined = Object.create(null); + combine(predefined, vars.ecmaIdentifiers); + combine(predefined, vars.reservedVars); + + combine(predefined, g || {}); + + declared = Object.create(null); + exported = Object.create(null); + ignored = Object.create(null); + + if (o) { + a = o.predef; + if (a) { + if (!Array.isArray(a) && typeof a === "object") { + a = Object.keys(a); + } + + a.forEach(function (item) { + var slice, prop; + + if (item[0] === "-") { + slice = item.slice(1); + JSHINT.blacklist[slice] = slice; + } else { + prop = Object.getOwnPropertyDescriptor(o.predef, item); + predefined[item] = prop ? prop.value : false; + } + }); + } + + optionKeys = Object.keys(o); + for (x = 0; x < optionKeys.length; x++) { + if (/^-W\d{3}$/g.test(optionKeys[x])) { + ignored[optionKeys[x].slice(1)] = true; + } else { + newOptionObj[optionKeys[x]] = o[optionKeys[x]]; + + if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false) + newOptionObj["(explicitNewcap)"] = true; + + if (optionKeys[x] === "indent") + newOptionObj["(explicitIndent)"] = true; + } + } + } + + state.option = newOptionObj; + + state.option.indent = state.option.indent || 4; + state.option.maxerr = state.option.maxerr || 50; + + indent = 1; + global = Object.create(predefined); + scope = global; + funct = { + "(global)": true, + "(name)": "(global)", + "(scope)": scope, + "(breakage)": 0, + "(loopage)": 0, + "(tokens)": {}, + "(metrics)": createMetrics(state.tokens.next) + }; + functions = [funct]; + urls = []; + stack = null; + member = {}; + membersOnly = null; + implied = {}; + inblock = false; + lookahead = []; + warnings = 0; + unuseds = []; + + if (!isString(s) && !Array.isArray(s)) { + errorAt("E004", 0); + return false; + } + + var api = { + get isJSON() { + return state.jsonMode; + }, + + getOption: function (name) { + return state.option[name] || null; + }, + + getCache: function (name) { + return state.cache[name]; + }, + + setCache: function (name, value) { + state.cache[name] = value; + }, + + warn: function (code, data) { + warningAt.apply(null, [ code, data.line, data.char ].concat(data.data)); + }, + + on: function (names, listener) { + names.split(" ").forEach(function (name) { + emitter.on(name, listener); + }.bind(this)); + } + }; + + emitter.removeAllListeners(); + (extraModules || []).forEach(function (func) { + func(api); + }); + + state.tokens.prev = state.tokens.curr = state.tokens.next = state.syntax["(begin)"]; + + lex = new Lexer(s); + + lex.on("warning", function (ev) { + warningAt.apply(null, [ ev.code, ev.line, ev.character].concat(ev.data)); + }); + + lex.on("error", function (ev) { + errorAt.apply(null, [ ev.code, ev.line, ev.character ].concat(ev.data)); + }); + + lex.on("fatal", function (ev) { + quit("E041", ev.line, ev.from); + }); + + lex.on("Identifier", function (ev) { + emitter.emit("Identifier", ev); + }); + + lex.on("String", function (ev) { + emitter.emit("String", ev); + }); + + lex.on("Number", function (ev) { + emitter.emit("Number", ev); + }); + + lex.start(); + + // Check options + for (var name in o) { + if (_.has(o, name)) { + checkOption(name, state.tokens.curr); + } + } + + assume(); + + // combine the passed globals after we've assumed all our options + combine(predefined, g || {}); + + //reset values + comma.first = true; + + try { + advance(); + switch (state.tokens.next.id) { + case "{": + case "[": + state.option.laxbreak = true; + state.jsonMode = true; + jsonValue(); + break; + default: + directives(); + + if (state.directive["use strict"]) { + if (!state.option.globalstrict && !state.option.node) { + warning("W097", state.tokens.prev); + } + } + + statements(); + } + advance((state.tokens.next && state.tokens.next.value !== ".") ? "(end)" : undefined); + + 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; + }; + + var warnUnused = function (name, tkn, type, unused_opt) { + var line = tkn.line; + var chr = tkn.character; + + if (unused_opt === undefined) { + unused_opt = state.option.unused; + } + + if (unused_opt === true) { + unused_opt = "last-param"; + } + + var warnable_types = { + "vars": ["var"], + "last-param": ["var", "last-param"], + "strict": ["var", "param", "last-param"] + }; + + if (unused_opt) { + if (warnable_types[unused_opt] && warnable_types[unused_opt].indexOf(type) !== -1) { + warningAt("W098", line, chr, name); + } + } + + unuseds.push({ + name: name, + line: line, + character: chr + }); + }; + + var checkUnused = function (func, key) { + var type = func[key]; + var tkn = func["(tokens)"][key]; + + if (key.charAt(0) === "(") + return; + + if (type !== "unused" && type !== "unction") + return; + + // Params are checked separately from other variables. + if (func["(params)"] && func["(params)"].indexOf(key) !== -1) + return; + + // Variable is in global scope and defined as exported. + if (func["(global)"] && _.has(exported, key)) { + return; + } + + warnUnused(key, tkn, "var"); + }; + + // 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 if (state.option.undef) { + warning.apply(warning, k.slice(1)); + } + } + + functions.forEach(function (func) { + if (func["(unusedOption)"] === false) { + return; + } + + for (var key in func) { + if (_.has(func, key)) { + checkUnused(func, key); + } + } + + if (!func["(params)"]) + return; + + var params = func["(params)"].slice(); + var param = params.pop(); + var type, unused_type; + + while (param) { + type = func[param]; + unused_type = (params.length === func["(params)"].length - 1 ? "last-param" : "param"); + + // 'undefined' is a special case for (function (window, undefined) { ... })(); + // patterns. + + if (param === "undefined") + return; + + if (type === "unused" || type === "unction") { + warnUnused(param, func["(tokens)"][param], unused_type, func["(unusedOption)"]); + } + + param = params.pop(); + } + }); + + for (var key in declared) { + if (_.has(declared, key) && !_.has(global, key)) { + warnUnused(key, declared[key], "var"); + } + } + + } catch (err) { + if (err && err.name === "JSHintError") { + var nt = state.tokens.next || {}; + JSHINT.errors.push({ + scope : "(main)", + raw : err.raw, + reason : err.message, + line : err.line || nt.line, + character : err.character || nt.from + }, null); + } else { + throw err; + } + } + + // Loop over the listed "internals", and check them as well. + + if (JSHINT.scope === "(main)") { + o = o || {}; + + for (i = 0; i < JSHINT.internals.length; i += 1) { + k = JSHINT.internals[i]; + o.scope = k.elem; + itself(k.value, o, g); + } + } + + return JSHINT.errors.length === 0; + }; + + // Modules. + itself.addModule = function (func) { + extraModules.push(func); + }; + + itself.addModule(style.register); + + // Data summary. + itself.data = function () { + var data = { + functions: [], + options: state.option + }; + var implieds = []; + var members = []; + var fu, f, i, j, n, globals; + + if (itself.errors.length) { + data.errors = itself.errors; + } + + if (state.jsonMode) { + data.json = true; + } + + for (n in implied) { + if (_.has(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 (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.character = f["(character)"]; + fu.last = f["(last)"]; + fu.lastcharacter = f["(lastcharacter)"]; + data.functions.push(fu); + } + + if (unuseds.length > 0) { + data.unused = unuseds; + } + + members = []; + for (n in member) { + if (typeof member[n] === "number") { + data.member = member; + break; + } + } + + return data; + }; + + itself.jshint = itself; + + return itself; +}()); + +// Make JSHINT a Node module, if possible. +if (typeof exports === "object" && exports) { + exports.JSHINT = JSHINT; +} diff --git a/Support/bin/jshint/stable/lex.js b/Support/bin/jshint/stable/lex.js new file mode 100644 index 0000000..1037278 --- /dev/null +++ b/Support/bin/jshint/stable/lex.js @@ -0,0 +1,1650 @@ +/* + * Lexical analysis and token construction. + */ + +"use strict"; + +var _ = require("../underscore"); +var events = require("events"); +var reg = require("./reg.js"); +var state = require("./state.js").state; + +// Some of these token types are from JavaScript Parser API +// while others are specific to JSHint parser. +// JS Parser API: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API + +var Token = { + Identifier: 1, + Punctuator: 2, + NumericLiteral: 3, + StringLiteral: 4, + Comment: 5, + Keyword: 6, + NullLiteral: 7, + BooleanLiteral: 8, + RegExp: 9 +}; + +// This is auto generated from the unicode tables. +// The tables are at: +// http://www.fileformat.info/info/unicode/category/Lu/list.htm +// http://www.fileformat.info/info/unicode/category/Ll/list.htm +// http://www.fileformat.info/info/unicode/category/Lt/list.htm +// http://www.fileformat.info/info/unicode/category/Lm/list.htm +// http://www.fileformat.info/info/unicode/category/Lo/list.htm +// http://www.fileformat.info/info/unicode/category/Nl/list.htm + +var unicodeLetterTable = [ + 170, 170, 181, 181, 186, 186, 192, 214, + 216, 246, 248, 705, 710, 721, 736, 740, 748, 748, 750, 750, + 880, 884, 886, 887, 890, 893, 902, 902, 904, 906, 908, 908, + 910, 929, 931, 1013, 1015, 1153, 1162, 1319, 1329, 1366, + 1369, 1369, 1377, 1415, 1488, 1514, 1520, 1522, 1568, 1610, + 1646, 1647, 1649, 1747, 1749, 1749, 1765, 1766, 1774, 1775, + 1786, 1788, 1791, 1791, 1808, 1808, 1810, 1839, 1869, 1957, + 1969, 1969, 1994, 2026, 2036, 2037, 2042, 2042, 2048, 2069, + 2074, 2074, 2084, 2084, 2088, 2088, 2112, 2136, 2308, 2361, + 2365, 2365, 2384, 2384, 2392, 2401, 2417, 2423, 2425, 2431, + 2437, 2444, 2447, 2448, 2451, 2472, 2474, 2480, 2482, 2482, + 2486, 2489, 2493, 2493, 2510, 2510, 2524, 2525, 2527, 2529, + 2544, 2545, 2565, 2570, 2575, 2576, 2579, 2600, 2602, 2608, + 2610, 2611, 2613, 2614, 2616, 2617, 2649, 2652, 2654, 2654, + 2674, 2676, 2693, 2701, 2703, 2705, 2707, 2728, 2730, 2736, + 2738, 2739, 2741, 2745, 2749, 2749, 2768, 2768, 2784, 2785, + 2821, 2828, 2831, 2832, 2835, 2856, 2858, 2864, 2866, 2867, + 2869, 2873, 2877, 2877, 2908, 2909, 2911, 2913, 2929, 2929, + 2947, 2947, 2949, 2954, 2958, 2960, 2962, 2965, 2969, 2970, + 2972, 2972, 2974, 2975, 2979, 2980, 2984, 2986, 2990, 3001, + 3024, 3024, 3077, 3084, 3086, 3088, 3090, 3112, 3114, 3123, + 3125, 3129, 3133, 3133, 3160, 3161, 3168, 3169, 3205, 3212, + 3214, 3216, 3218, 3240, 3242, 3251, 3253, 3257, 3261, 3261, + 3294, 3294, 3296, 3297, 3313, 3314, 3333, 3340, 3342, 3344, + 3346, 3386, 3389, 3389, 3406, 3406, 3424, 3425, 3450, 3455, + 3461, 3478, 3482, 3505, 3507, 3515, 3517, 3517, 3520, 3526, + 3585, 3632, 3634, 3635, 3648, 3654, 3713, 3714, 3716, 3716, + 3719, 3720, 3722, 3722, 3725, 3725, 3732, 3735, 3737, 3743, + 3745, 3747, 3749, 3749, 3751, 3751, 3754, 3755, 3757, 3760, + 3762, 3763, 3773, 3773, 3776, 3780, 3782, 3782, 3804, 3805, + 3840, 3840, 3904, 3911, 3913, 3948, 3976, 3980, 4096, 4138, + 4159, 4159, 4176, 4181, 4186, 4189, 4193, 4193, 4197, 4198, + 4206, 4208, 4213, 4225, 4238, 4238, 4256, 4293, 4304, 4346, + 4348, 4348, 4352, 4680, 4682, 4685, 4688, 4694, 4696, 4696, + 4698, 4701, 4704, 4744, 4746, 4749, 4752, 4784, 4786, 4789, + 4792, 4798, 4800, 4800, 4802, 4805, 4808, 4822, 4824, 4880, + 4882, 4885, 4888, 4954, 4992, 5007, 5024, 5108, 5121, 5740, + 5743, 5759, 5761, 5786, 5792, 5866, 5870, 5872, 5888, 5900, + 5902, 5905, 5920, 5937, 5952, 5969, 5984, 5996, 5998, 6000, + 6016, 6067, 6103, 6103, 6108, 6108, 6176, 6263, 6272, 6312, + 6314, 6314, 6320, 6389, 6400, 6428, 6480, 6509, 6512, 6516, + 6528, 6571, 6593, 6599, 6656, 6678, 6688, 6740, 6823, 6823, + 6917, 6963, 6981, 6987, 7043, 7072, 7086, 7087, 7104, 7141, + 7168, 7203, 7245, 7247, 7258, 7293, 7401, 7404, 7406, 7409, + 7424, 7615, 7680, 7957, 7960, 7965, 7968, 8005, 8008, 8013, + 8016, 8023, 8025, 8025, 8027, 8027, 8029, 8029, 8031, 8061, + 8064, 8116, 8118, 8124, 8126, 8126, 8130, 8132, 8134, 8140, + 8144, 8147, 8150, 8155, 8160, 8172, 8178, 8180, 8182, 8188, + 8305, 8305, 8319, 8319, 8336, 8348, 8450, 8450, 8455, 8455, + 8458, 8467, 8469, 8469, 8473, 8477, 8484, 8484, 8486, 8486, + 8488, 8488, 8490, 8493, 8495, 8505, 8508, 8511, 8517, 8521, + 8526, 8526, 8544, 8584, 11264, 11310, 11312, 11358, + 11360, 11492, 11499, 11502, 11520, 11557, 11568, 11621, + 11631, 11631, 11648, 11670, 11680, 11686, 11688, 11694, + 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, + 11728, 11734, 11736, 11742, 11823, 11823, 12293, 12295, + 12321, 12329, 12337, 12341, 12344, 12348, 12353, 12438, + 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, + 12593, 12686, 12704, 12730, 12784, 12799, 13312, 13312, + 19893, 19893, 19968, 19968, 40907, 40907, 40960, 42124, + 42192, 42237, 42240, 42508, 42512, 42527, 42538, 42539, + 42560, 42606, 42623, 42647, 42656, 42735, 42775, 42783, + 42786, 42888, 42891, 42894, 42896, 42897, 42912, 42921, + 43002, 43009, 43011, 43013, 43015, 43018, 43020, 43042, + 43072, 43123, 43138, 43187, 43250, 43255, 43259, 43259, + 43274, 43301, 43312, 43334, 43360, 43388, 43396, 43442, + 43471, 43471, 43520, 43560, 43584, 43586, 43588, 43595, + 43616, 43638, 43642, 43642, 43648, 43695, 43697, 43697, + 43701, 43702, 43705, 43709, 43712, 43712, 43714, 43714, + 43739, 43741, 43777, 43782, 43785, 43790, 43793, 43798, + 43808, 43814, 43816, 43822, 43968, 44002, 44032, 44032, + 55203, 55203, 55216, 55238, 55243, 55291, 63744, 64045, + 64048, 64109, 64112, 64217, 64256, 64262, 64275, 64279, + 64285, 64285, 64287, 64296, 64298, 64310, 64312, 64316, + 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, + 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, + 65136, 65140, 65142, 65276, 65313, 65338, 65345, 65370, + 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, + 65498, 65500, 65536, 65547, 65549, 65574, 65576, 65594, + 65596, 65597, 65599, 65613, 65616, 65629, 65664, 65786, + 65856, 65908, 66176, 66204, 66208, 66256, 66304, 66334, + 66352, 66378, 66432, 66461, 66464, 66499, 66504, 66511, + 66513, 66517, 66560, 66717, 67584, 67589, 67592, 67592, + 67594, 67637, 67639, 67640, 67644, 67644, 67647, 67669, + 67840, 67861, 67872, 67897, 68096, 68096, 68112, 68115, + 68117, 68119, 68121, 68147, 68192, 68220, 68352, 68405, + 68416, 68437, 68448, 68466, 68608, 68680, 69635, 69687, + 69763, 69807, 73728, 74606, 74752, 74850, 77824, 78894, + 92160, 92728, 110592, 110593, 119808, 119892, 119894, 119964, + 119966, 119967, 119970, 119970, 119973, 119974, 119977, 119980, + 119982, 119993, 119995, 119995, 119997, 120003, 120005, 120069, + 120071, 120074, 120077, 120084, 120086, 120092, 120094, 120121, + 120123, 120126, 120128, 120132, 120134, 120134, 120138, 120144, + 120146, 120485, 120488, 120512, 120514, 120538, 120540, 120570, + 120572, 120596, 120598, 120628, 120630, 120654, 120656, 120686, + 120688, 120712, 120714, 120744, 120746, 120770, 120772, 120779, + 131072, 131072, 173782, 173782, 173824, 173824, 177972, 177972, + 177984, 177984, 178205, 178205, 194560, 195101 +]; + +var identifierStartTable = []; + +for (var i = 0; i < 128; i++) { + identifierStartTable[i] = + i === 36 || // $ + i >= 65 && i <= 90 || // A-Z + i === 95 || // _ + i >= 97 && i <= 122; // a-z +} + +var identifierPartTable = []; + +for (var i = 0; i < 128; i++) { + identifierPartTable[i] = + identifierStartTable[i] || // $, _, A-Z, a-z + i >= 48 && i <= 57; // 0-9 +} + +/* + * Lexer for JSHint. + * + * This object does a char-by-char scan of the provided source code + * and produces a sequence of tokens. + * + * var lex = new Lexer("var i = 0;"); + * lex.start(); + * lex.token(); // returns the next token + * + * You have to use the token() method to move the lexer forward + * but you don't have to use its return value to get tokens. In addition + * to token() method returning the next token, the Lexer object also + * emits events. + * + * lex.on("Identifier", function (data) { + * if (data.name.indexOf("_") >= 0) { + * // Produce a warning. + * } + * }); + * + * Note that the token() method returns tokens in a JSLint-compatible + * format while the event emitter uses a slightly modified version of + * Mozilla's JavaScript Parser API. Eventually, we will move away from + * JSLint format. + */ +function Lexer(source) { + var lines = source; + + if (typeof lines === "string") { + lines = lines + .replace(/\r\n/g, "\n") + .replace(/\r/g, "\n") + .split("\n"); + } + + // 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] = ""; + } + + this.emitter = new events.EventEmitter(); + this.source = source; + this.lines = lines; + this.prereg = true; + + this.line = 0; + this.char = 1; + this.from = 1; + this.input = ""; + + for (var i = 0; i < state.option.indent; i += 1) { + state.tab += " "; + } +} + +Lexer.prototype = { + _lines: [], + + get lines() { + this._lines = state.lines; + return this._lines; + }, + + set lines(val) { + this._lines = val; + state.lines = this._lines; + }, + + /* + * Return the next i character without actually moving the + * char pointer. + */ + peek: function (i) { + return this.input.charAt(i || 0); + }, + + /* + * Move the char pointer forward i times. + */ + skip: function (i) { + i = i || 1; + this.char += i; + this.input = this.input.slice(i); + }, + + /* + * Subscribe to a token event. The API for this method is similar + * Underscore.js i.e. you can subscribe to multiple events with + * one call: + * + * lex.on("Identifier Number", function (data) { + * // ... + * }); + */ + on: function (names, listener) { + names.split(" ").forEach(function (name) { + this.emitter.on(name, listener); + }.bind(this)); + }, + + /* + * Trigger a token event. All arguments will be passed to each + * listener. + */ + trigger: function () { + this.emitter.emit.apply(this.emitter, Array.prototype.slice.call(arguments)); + }, + + /* + * Extract a punctuator out of the next sequence of characters + * or return 'null' if its not possible. + * + * This method's implementation was heavily influenced by the + * scanPunctuator function in the Esprima parser's source code. + */ + scanPunctuator: function () { + var ch1 = this.peek(); + var ch2, ch3, ch4; + + switch (ch1) { + // Most common single-character punctuators + case ".": + if ((/^[0-9]$/).test(this.peek(1))) { + return null; + } + + /* falls through */ + case "(": + case ")": + case ";": + case ",": + case "{": + case "}": + case "[": + case "]": + case ":": + case "~": + case "?": + return { + type: Token.Punctuator, + value: ch1 + }; + + // A pound sign (for Node shebangs) + case "#": + return { + type: Token.Punctuator, + value: ch1 + }; + + // We're at the end of input + case "": + return null; + } + + // Peek more characters + + ch2 = this.peek(1); + ch3 = this.peek(2); + ch4 = this.peek(3); + + // 4-character punctuator: >>>= + + if (ch1 === ">" && ch2 === ">" && ch3 === ">" && ch4 === "=") { + return { + type: Token.Punctuator, + value: ">>>=" + }; + } + + // 3-character punctuators: === !== >>> <<= >>= + + if (ch1 === "=" && ch2 === "=" && ch3 === "=") { + return { + type: Token.Punctuator, + value: "===" + }; + } + + if (ch1 === "!" && ch2 === "=" && ch3 === "=") { + return { + type: Token.Punctuator, + value: "!==" + }; + } + + if (ch1 === ">" && ch2 === ">" && ch3 === ">") { + return { + type: Token.Punctuator, + value: ">>>" + }; + } + + if (ch1 === "<" && ch2 === "<" && ch3 === "=") { + return { + type: Token.Punctuator, + value: "<<=" + }; + } + + if (ch1 === ">" && ch2 === ">" && ch3 === "=") { + return { + type: Token.Punctuator, + value: "<<=" + }; + } + + // 2-character punctuators: <= >= == != ++ -- << >> && || + // += -= *= %= &= |= ^= (but not /=, see below) + if (ch1 === ch2 && ("+-<>&|".indexOf(ch1) >= 0)) { + return { + type: Token.Punctuator, + value: ch1 + ch2 + }; + } + + if ("<>=!+-*%&|^".indexOf(ch1) >= 0) { + if (ch2 === "=") { + return { + type: Token.Punctuator, + value: ch1 + ch2 + }; + } + + return { + type: Token.Punctuator, + value: ch1 + }; + } + + // Special case: /=. We need to make sure that this is an + // operator and not a regular expression. + + if (ch1 === "/") { + if (ch2 === "=" && /\/=(?!(\S*\/[gim]?))/.test(this.input)) { + // /= is not a part of a regular expression, return it as a + // punctuator. + return { + type: Token.Punctuator, + value: "/=" + }; + } + + return { + type: Token.Punctuator, + value: "/" + }; + } + + return null; + }, + + /* + * Extract a comment out of the next sequence of characters and/or + * lines or return 'null' if its not possible. Since comments can + * span across multiple lines this method has to move the char + * pointer. + * + * In addition to normal JavaScript comments (// and /*) this method + * also recognizes JSHint- and JSLint-specific comments such as + * /*jshint, /*jslint, /*globals and so on. + */ + scanComments: function () { + var ch1 = this.peek(); + var ch2 = this.peek(1); + var rest = this.input.substr(2); + var startLine = this.line; + var startChar = this.char; + + // Create a comment token object and make sure it + // has all the data JSHint needs to work with special + // comments. + + function commentToken(label, body, opt) { + var special = ["jshint", "jslint", "members", "member", "globals", "global", "exported"]; + var isSpecial = false; + var value = label + body; + var commentType = "plain"; + opt = opt || {}; + + if (opt.isMultiline) { + value += "*/"; + } + + special.forEach(function (str) { + if (isSpecial) { + return; + } + + // Don't recognize any special comments other than jshint for single-line + // comments. This introduced many problems with legit comments. + if (label === "//" && str !== "jshint") { + return; + } + + if (body.substr(0, str.length) === str) { + isSpecial = true; + label = label + str; + body = body.substr(str.length); + } + + if (!isSpecial && body.charAt(0) === " " && body.substr(1, str.length) === str) { + isSpecial = true; + label = label + " " + str; + body = body.substr(str.length + 1); + } + + if (!isSpecial) { + return; + } + + switch (str) { + case "member": + commentType = "members"; + break; + case "global": + commentType = "globals"; + break; + default: + commentType = str; + } + }); + + return { + type: Token.Comment, + commentType: commentType, + value: value, + body: body, + isSpecial: isSpecial, + isMultiline: opt.isMultiline || false, + isMalformed: opt.isMalformed || false + }; + } + + // End of unbegun comment. Raise an error and skip that input. + if (ch1 === "*" && ch2 === "/") { + this.trigger("error", { + code: "E018", + line: startLine, + character: startChar + }); + + this.skip(2); + return null; + } + + // Comments must start either with // or /* + if (ch1 !== "/" || (ch2 !== "*" && ch2 !== "/")) { + return null; + } + + // One-line comment + if (ch2 === "/") { + this.skip(this.input.length); // Skip to the EOL. + return commentToken("//", rest); + } + + var body = ""; + + /* Multi-line comment */ + if (ch2 === "*") { + this.skip(2); + + while (this.peek() !== "*" || this.peek(1) !== "/") { + if (this.peek() === "") { // End of Line + body += "\n"; + + // If we hit EOF and our comment is still unclosed, + // trigger an error and end the comment implicitly. + if (!this.nextLine()) { + this.trigger("error", { + code: "E017", + line: startLine, + character: startChar + }); + + return commentToken("/*", body, { + isMultiline: true, + isMalformed: true + }); + } + } else { + body += this.peek(); + this.skip(); + } + } + + this.skip(2); + return commentToken("/*", body, { isMultiline: true }); + } + }, + + /* + * Extract a keyword out of the next sequence of characters or + * return 'null' if its not possible. + */ + scanKeyword: function () { + var result = /^[a-zA-Z_$][a-zA-Z0-9_$]*/.exec(this.input); + var keywords = [ + "if", "in", "do", "var", "for", "new", + "try", "let", "this", "else", "case", + "void", "with", "enum", "while", "break", + "catch", "throw", "const", "yield", "class", + "super", "return", "typeof", "delete", + "switch", "export", "import", "default", + "finally", "extends", "function", "continue", + "debugger", "instanceof" + ]; + + if (result && keywords.indexOf(result[0]) >= 0) { + return { + type: Token.Keyword, + value: result[0] + }; + } + + return null; + }, + + /* + * Extract a JavaScript identifier out of the next sequence of + * characters or return 'null' if its not possible. In addition, + * to Identifier this method can also produce BooleanLiteral + * (true/false) and NullLiteral (null). + */ + scanIdentifier: function () { + var id = ""; + var index = 0; + var type, char; + + // Detects any character in the Unicode categories "Uppercase + // letter (Lu)", "Lowercase letter (Ll)", "Titlecase letter + // (Lt)", "Modifier letter (Lm)", "Other letter (Lo)", or + // "Letter number (Nl)". + // + // Both approach and unicodeLetterTable were borrowed from + // Google's Traceur. + + function isUnicodeLetter(code) { + for (var i = 0; i < unicodeLetterTable.length;) { + if (code < unicodeLetterTable[i++]) { + return false; + } + + if (code <= unicodeLetterTable[i++]) { + return true; + } + } + + return false; + } + + function isHexDigit(str) { + return (/^[0-9a-fA-F]$/).test(str); + } + + var readUnicodeEscapeSequence = function () { + /*jshint validthis:true */ + index += 1; + + if (this.peek(index) !== "u") { + return null; + } + + var ch1 = this.peek(index + 1); + var ch2 = this.peek(index + 2); + var ch3 = this.peek(index + 3); + var ch4 = this.peek(index + 4); + var code; + + if (isHexDigit(ch1) && isHexDigit(ch2) && isHexDigit(ch3) && isHexDigit(ch4)) { + code = parseInt(ch1 + ch2 + ch3 + ch4, 16); + + if (isUnicodeLetter(code)) { + index += 5; + return "\\u" + ch1 + ch2 + ch3 + ch4; + } + + return null; + } + + return null; + }.bind(this); + + var getIdentifierStart = function () { + /*jshint validthis:true */ + var chr = this.peek(index); + var code = chr.charCodeAt(0); + + if (code === 92) { + return readUnicodeEscapeSequence(); + } + + if (code < 128) { + if (identifierStartTable[code]) { + index += 1; + return chr; + } + + return null; + } + + if (isUnicodeLetter(code)) { + index += 1; + return chr; + } + + return null; + }.bind(this); + + var getIdentifierPart = function () { + /*jshint validthis:true */ + var chr = this.peek(index); + var code = chr.charCodeAt(0); + + if (code === 92) { + return readUnicodeEscapeSequence(); + } + + if (code < 128) { + if (identifierPartTable[code]) { + index += 1; + return chr; + } + + return null; + } + + if (isUnicodeLetter(code)) { + index += 1; + return chr; + } + + return null; + }.bind(this); + + char = getIdentifierStart(); + if (char === null) { + return null; + } + + id = char; + for (;;) { + char = getIdentifierPart(); + + if (char === null) { + break; + } + + id += char; + } + + switch (id) { + case "true": + case "false": + type = Token.BooleanLiteral; + break; + case "null": + type = Token.NullLiteral; + break; + default: + type = Token.Identifier; + } + + return { + type: type, + value: id + }; + }, + + /* + * Extract a numeric literal out of the next sequence of + * characters or return 'null' if its not possible. This method + * supports all numeric literals described in section 7.8.3 + * of the EcmaScript 5 specification. + * + * This method's implementation was heavily influenced by the + * scanNumericLiteral function in the Esprima parser's source code. + */ + scanNumericLiteral: function () { + var index = 0; + var value = ""; + var length = this.input.length; + var char = this.peek(index); + var bad; + + function isDecimalDigit(str) { + return (/^[0-9]$/).test(str); + } + + function isOctalDigit(str) { + return (/^[0-7]$/).test(str); + } + + function isHexDigit(str) { + return (/^[0-9a-fA-F]$/).test(str); + } + + function isIdentifierStart(ch) { + return (ch === "$") || (ch === "_") || (ch === "\\") || + (ch >= "a" && ch <= "z") || (ch >= "A" && ch <= "Z"); + } + + // Numbers must start either with a decimal digit or a point. + + if (char !== "." && !isDecimalDigit(char)) { + return null; + } + + if (char !== ".") { + value = this.peek(index); + index += 1; + char = this.peek(index); + + if (value === "0") { + // Base-16 numbers. + if (char === "x" || char === "X") { + index += 1; + value += char; + + while (index < length) { + char = this.peek(index); + if (!isHexDigit(char)) { + break; + } + value += char; + index += 1; + } + + if (value.length <= 2) { // 0x + return { + type: Token.NumericLiteral, + value: value, + isMalformed: true + }; + } + + if (index < length) { + char = this.peek(index); + if (isIdentifierStart(char)) { + return null; + } + } + + return { + type: Token.NumericLiteral, + value: value, + base: 16, + isMalformed: false + }; + } + + // Base-8 numbers. + if (isOctalDigit(char)) { + index += 1; + value += char; + bad = false; + + while (index < length) { + char = this.peek(index); + + // Numbers like '019' (note the 9) are not valid octals + // but we still parse them and mark as malformed. + + if (isDecimalDigit(char)) { + bad = true; + } else if (!isOctalDigit(char)) { + break; + } + value += char; + index += 1; + } + + if (index < length) { + char = this.peek(index); + if (isIdentifierStart(char)) { + return null; + } + } + + return { + type: Token.NumericLiteral, + value: value, + base: 8, + isMalformed: false + }; + } + + // Decimal numbers that start with '0' such as '09' are illegal + // but we still parse them and return as malformed. + + if (isDecimalDigit(char)) { + index += 1; + value += char; + } + } + + while (index < length) { + char = this.peek(index); + if (!isDecimalDigit(char)) { + break; + } + value += char; + index += 1; + } + } + + // Decimal digits. + + if (char === ".") { + value += char; + index += 1; + + while (index < length) { + char = this.peek(index); + if (!isDecimalDigit(char)) { + break; + } + value += char; + index += 1; + } + } + + // Exponent part. + + if (char === "e" || char === "E") { + value += char; + index += 1; + char = this.peek(index); + + if (char === "+" || char === "-") { + value += this.peek(index); + index += 1; + } + + char = this.peek(index); + if (isDecimalDigit(char)) { + value += char; + index += 1; + + while (index < length) { + char = this.peek(index); + if (!isDecimalDigit(char)) { + break; + } + value += char; + index += 1; + } + } else { + return null; + } + } + + if (index < length) { + char = this.peek(index); + if (isIdentifierStart(char)) { + return null; + } + } + + return { + type: Token.NumericLiteral, + value: value, + base: 10, + isMalformed: !isFinite(value) + }; + }, + + /* + * Extract a string out of the next sequence of characters and/or + * lines or return 'null' if its not possible. Since strings can + * span across multiple lines this method has to move the char + * pointer. + * + * This method recognizes pseudo-multiline JavaScript strings: + * + * var str = "hello\ + * world"; + */ + scanStringLiteral: function () { + var quote = this.peek(); + + // String must start with a quote. + if (quote !== "\"" && quote !== "'") { + return null; + } + + // In JSON strings must always use double quotes. + if (state.jsonMode && quote !== "\"") { + this.trigger("warning", { + code: "W108", + line: this.line, + character: this.char // +1? + }); + } + + var value = ""; + var startLine = this.line; + var startChar = this.char; + var allowNewLine = false; + + this.skip(); + + while (this.peek() !== quote) { + while (this.peek() === "") { // End Of Line + + // If an EOL is not preceded by a backslash, show a warning + // and proceed like it was a legit multi-line string where + // author simply forgot to escape the newline symbol. + // + // Another approach is to implicitly close a string on EOL + // but it generates too many false positives. + + if (!allowNewLine) { + this.trigger("warning", { + code: "W112", + line: this.line, + character: this.char + }); + } else { + allowNewLine = false; + + // Otherwise show a warning if multistr option was not set. + // For JSON, show warning no matter what. + + if (!state.option.multistr) { + this.trigger("warning", { + code: "W043", + line: this.line, + character: this.char + }); + } else if (state.jsonMode) { + this.trigger("warning", { + code: "W042", + line: this.line, + character: this.char + }); + } + } + + // If we get an EOF inside of an unclosed string, show an + // error and implicitly close it at the EOF point. + + if (!this.nextLine()) { + this.trigger("error", { + code: "E029", + line: startLine, + character: startChar + }); + + return { + type: Token.StringLiteral, + value: value, + isUnclosed: true, + quote: quote + }; + } + } + + allowNewLine = false; + var char = this.peek(); + var jump = 1; // A length of a jump, after we're done + // parsing this character. + + if (char < " ") { + // Warn about a control character in a string. + this.trigger("warning", { + code: "W113", + line: this.line, + character: this.char, + data: [ "" ] + }); + } + + // Special treatment for some escaped characters. + + if (char === "\\") { + this.skip(); + char = this.peek(); + + switch (char) { + case "'": + if (state.jsonMode) { + this.trigger("warning", { + code: "W114", + line: this.line, + character: this.char, + data: [ "\\'" ] + }); + } + break; + case "b": + char = "\b"; + break; + case "f": + char = "\f"; + break; + case "n": + char = "\n"; + break; + case "r": + char = "\r"; + break; + case "t": + char = "\t"; + break; + case "0": + char = "\0"; + + // Octal literals fail in strict mode. + // Check if the number is between 00 and 07. + var n = parseInt(this.peek(1), 10); + if (n >= 0 && n <= 7 && state.directive["use strict"]) { + this.trigger("warning", { + code: "W115", + line: this.line, + character: this.char + }); + } + break; + case "u": + char = String.fromCharCode(parseInt(this.input.substr(1, 4), 16)); + jump = 5; + break; + case "v": + if (state.jsonMode) { + this.trigger("warning", { + code: "W114", + line: this.line, + character: this.char, + data: [ "\\v" ] + }); + } + + char = "\v"; + break; + case "x": + var x = parseInt(this.input.substr(1, 2), 16); + + if (state.jsonMode) { + this.trigger("warning", { + code: "W114", + line: this.line, + character: this.char, + data: [ "\\x-" ] + }); + } + + char = String.fromCharCode(x); + jump = 3; + break; + case "\\": + case "\"": + case "/": + break; + case "": + allowNewLine = true; + char = ""; + break; + case "!": + if (value.slice(value.length - 2) === "<") { + break; + } + + /*falls through */ + default: + // Weird escaping. + this.trigger("warning", { + code: "W044", + line: this.line, + character: this.char + }); + } + } + + value += char; + this.skip(jump); + } + + this.skip(); + return { + type: Token.StringLiteral, + value: value, + isUnclosed: false, + quote: quote + }; + }, + + /* + * Extract a regular expression out of the next sequence of + * characters and/or lines or return 'null' if its not possible. + * + * This method is platform dependent: it accepts almost any + * regular expression values but then tries to compile and run + * them using system's RegExp object. This means that there are + * rare edge cases where one JavaScript engine complains about + * your regular expression while others don't. + */ + scanRegExp: function () { + var index = 0; + var length = this.input.length; + var char = this.peek(); + var value = char; + var body = ""; + var flags = []; + var malformed = false; + var isCharSet = false; + var terminated; + + var scanUnexpectedChars = function () { + // Unexpected control character + if (char < " ") { + malformed = true; + this.trigger("warning", { + code: "W048", + line: this.line, + character: this.char + }); + } + + // Unexpected escaped character + if (char === "<") { + malformed = true; + this.trigger("warning", { + code: "W049", + line: this.line, + character: this.char, + data: [ char ] + }); + } + }.bind(this); + + // Regular expressions must start with '/' + if (!this.prereg || char !== "/") { + return null; + } + + index += 1; + terminated = false; + + // Try to get everything in between slashes. A couple of + // cases aside (see scanUnexpectedChars) we don't really + // care whether the resulting expression is valid or not. + // We will check that later using the RegExp object. + + while (index < length) { + char = this.peek(index); + value += char; + body += char; + + if (isCharSet) { + if (char === "]") { + if (this.peek(index - 1) !== "\\" || this.peek(index - 2) === "\\") { + isCharSet = false; + } + } + + if (char === "\\") { + index += 1; + char = this.peek(index); + body += char; + value += char; + + scanUnexpectedChars(); + } + + index += 1; + continue; + } + + if (char === "\\") { + index += 1; + char = this.peek(index); + body += char; + value += char; + + scanUnexpectedChars(); + + if (char === "/") { + index += 1; + continue; + } + + if (char === "[") { + index += 1; + continue; + } + } + + if (char === "[") { + isCharSet = true; + index += 1; + continue; + } + + if (char === "/") { + body = body.substr(0, body.length - 1); + terminated = true; + index += 1; + break; + } + + index += 1; + } + + // A regular expression that was never closed is an + // error from which we cannot recover. + + if (!terminated) { + this.trigger("error", { + code: "E015", + line: this.line, + character: this.from + }); + + return void this.trigger("fatal", { + line: this.line, + from: this.from + }); + } + + // Parse flags (if any). + + while (index < length) { + char = this.peek(index); + if (!/[gim]/.test(char)) { + break; + } + flags.push(char); + value += char; + index += 1; + } + + // Check regular expression for correctness. + + try { + new RegExp(body, flags.join("")); + } catch (err) { + malformed = true; + this.trigger("error", { + code: "E016", + line: this.line, + character: this.char, + data: [ err.message ] // Platform dependent! + }); + } + + return { + type: Token.RegExp, + value: value, + flags: flags, + isMalformed: malformed + }; + }, + + /* + * Scan for any occurence of mixed tabs and spaces. If smarttabs option + * is on, ignore tabs followed by spaces. + * + * Tabs followed by one space followed by a block comment are allowed. + */ + scanMixedSpacesAndTabs: function () { + var at, match; + + if (state.option.smarttabs) { + // Negative look-behind for "//" + match = this.input.match(/(\/\/)? \t/); + at = match && !match[1] ? 0 : -1; + } else { + at = this.input.search(/ \t|\t [^\*]/); + } + + return at; + }, + + /* + * Scan for characters that get silently deleted by one or more browsers. + */ + scanUnsafeChars: function () { + return this.input.search(reg.unsafeChars); + }, + + /* + * Produce the next raw token or return 'null' if no tokens can be matched. + * This method skips over all space characters. + */ + next: function () { + this.from = this.char; + + // Move to the next non-space character. + var start; + if (/\s/.test(this.peek())) { + start = this.char; + + while (/\s/.test(this.peek())) { + this.from += 1; + this.skip(); + } + + if (this.peek() === "") { // EOL + if (state.option.trailing) { + this.trigger("warning", { code: "W102", line: this.line, character: start }); + } + } + } + + // Methods that work with multi-line structures and move the + // character pointer. + + var match = this.scanComments() || + this.scanStringLiteral(); + + if (match) { + return match; + } + + // Methods that don't move the character pointer. + + match = + this.scanRegExp() || + this.scanPunctuator() || + this.scanKeyword() || + this.scanIdentifier() || + this.scanNumericLiteral(); + + if (match) { + this.skip(match.value.length); + return match; + } + + // No token could be matched, give up. + + return null; + }, + + /* + * Switch to the next line and reset all char pointers. Once + * switched, this method also checks for mixed spaces and tabs + * and other minor warnings. + */ + nextLine: function () { + var char; + + if (this.line >= this.lines.length) { + return false; + } + + this.input = this.lines[this.line]; + this.line += 1; + this.char = 1; + this.from = 1; + + char = this.scanMixedSpacesAndTabs(); + if (char >= 0) { + this.trigger("warning", { code: "W099", line: this.line, character: char + 1 }); + } + + this.input = this.input.replace(/\t/g, state.tab); + char = this.scanUnsafeChars(); + + if (char >= 0) { + this.trigger("warning", { code: "W100", line: this.line, character: char }); + } + + // If there is a limit on line length, warn when lines get too + // long. + + if (state.option.maxlen && state.option.maxlen < this.input.length) { + this.trigger("warning", { code: "W101", line: this.line, character: this.input.length }); + } + + return true; + }, + + /* + * This is simply a synonym for nextLine() method with a friendlier + * public name. + */ + start: function () { + this.nextLine(); + }, + + /* + * Produce the next token. This function is called by advance() to get + * the next token. It retuns a token in a JSLint-compatible format. + */ + token: function () { + var token; + + function isReserved(token, isProperty) { + if (!token.reserved) { + return false; + } + + if (token.meta && token.meta.isFutureReservedWord) { + // ES3 FutureReservedWord in an ES5 environment. + if (state.option.es5 && !token.meta.es5) { + return false; + } + + // Some ES5 FutureReservedWord identifiers are active only + // within a strict mode environment. + if (token.meta.strictOnly) { + if (!state.option.strict && !state.directive["use strict"]) { + return false; + } + } + + if (isProperty) { + return false; + } + } + + return true; + } + + // Produce a token object. + var create = function (type, value, isProperty) { + /*jshint validthis:true */ + var obj; + + if (type !== "(endline)" && type !== "(end)") { + this.prereg = false; + } + + if (type === "(punctuator)") { + switch (value) { + case ".": + case ")": + case "~": + case "#": + case "]": + this.prereg = false; + break; + default: + this.prereg = true; + } + + obj = Object.create(state.syntax[value] || state.syntax["(error)"]); + } + + if (type === "(identifier)") { + if (value === "return" || value === "case" || value === "typeof") { + this.prereg = true; + } + + if (_.has(state.syntax, value)) { + obj = Object.create(state.syntax[value] || state.syntax["(error)"]); + + // If this can't be a reserved keyword, reset the object. + if (!isReserved(obj, isProperty && type === "(identifier)")) { + obj = null; + } + } + } + + if (!obj) { + obj = Object.create(state.syntax[type]); + } + + obj.identifier = (type === "(identifier)"); + obj.type = obj.type || type; + obj.value = value; + obj.line = this.line; + obj.character = this.char; + obj.from = this.from; + + if (isProperty && obj.identifier) { + obj.isProperty = isProperty; + } + + return obj; + }.bind(this); + + for (;;) { + if (!this.input.length) { + return create(this.nextLine() ? "(endline)" : "(end)", ""); + } + + token = this.next(); + + if (!token) { + if (this.input.length) { + // Unexpected character. + this.trigger("error", { + code: "E024", + line: this.line, + character: this.char, + data: [ this.peek() ] + }); + + this.input = ""; + } + + continue; + } + + switch (token.type) { + case Token.StringLiteral: + this.trigger("String", { + line: this.line, + char: this.char, + from: this.from, + value: token.value, + quote: token.quote + }); + + return create("(string)", token.value); + case Token.Identifier: + this.trigger("Identifier", { + line: this.line, + char: this.char, + from: this.form, + name: token.value, + isProperty: state.tokens.curr.id === "." + }); + + /* falls through */ + case Token.Keyword: + case Token.NullLiteral: + case Token.BooleanLiteral: + return create("(identifier)", token.value, state.tokens.curr.id === "."); + + case Token.NumericLiteral: + if (token.isMalformed) { + this.trigger("warning", { + code: "W045", + line: this.line, + character: this.char, + data: [ token.value ] + }); + } + + if (state.jsonMode && token.base === 16) { + this.trigger("warning", { + code: "W114", + line: this.line, + character: this.char, + data: [ "0x-" ] + }); + } + + if (state.directive["use strict"] && token.base === 8) { + this.trigger("warning", { + code: "W115", + line: this.line, + character: this.char + }); + } + + this.trigger("Number", { + line: this.line, + char: this.char, + from: this.from, + value: token.value, + base: token.base, + isMalformed: token.malformed + }); + + return create("(number)", token.value); + + case Token.RegExp: + return create("(regexp)", token.value); + + case Token.Comment: + state.tokens.curr.comment = true; + + if (token.isSpecial) { + return { + value: token.value, + body: token.body, + type: token.commentType, + isSpecial: token.isSpecial, + line: this.line, + character: this.char, + from: this.from + }; + } + + break; + + case "": + break; + + default: + return create("(punctuator)", token.value); + } + } + } +}; + +exports.Lexer = Lexer; \ No newline at end of file diff --git a/Support/bin/jshint/stable/reg.js b/Support/bin/jshint/stable/reg.js new file mode 100644 index 0000000..e5b4af5 --- /dev/null +++ b/Support/bin/jshint/stable/reg.js @@ -0,0 +1,34 @@ +/* + * Regular expressions. Some of these are stupidly long. + */ + +/*jshint maxlen:1000 */ + +"use string"; + +// Unsafe comment or string (ax) +exports.unsafeString = + /@cc|<\/?|script|\]\s*\]|<\s*!|</i; + +// Unsafe characters that are silently deleted by one or more browsers (cx) +exports.unsafeChars = + /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + +// Characters in strings that need escaping (nx and nxg) +exports.needEsc = + /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + +exports.needEscGlobal = + /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; + +// Star slash (lx) +exports.starSlash = /\*\//; + +// Identifier (ix) +exports.identifier = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/; + +// JavaScript URL (jx) +exports.javascriptURL = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; + +// Catches /* falls through */ comments (ft) +exports.fallsThrough = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/; \ No newline at end of file diff --git a/Support/bin/jshint/stable/state.js b/Support/bin/jshint/stable/state.js new file mode 100644 index 0000000..b6b7bde --- /dev/null +++ b/Support/bin/jshint/stable/state.js @@ -0,0 +1,22 @@ +"use strict"; + +var state = { + syntax: {}, + + reset: function () { + this.tokens = { + prev: null, + next: null, + curr: null + }, + + this.option = {}; + this.directive = {}; + this.jsonMode = false; + this.lines = []; + this.tab = ""; + this.cache = {}; // Node.JS doesn't have Map. Sniff. + } +}; + +exports.state = state; \ No newline at end of file diff --git a/Support/bin/jshint/stable/style.js b/Support/bin/jshint/stable/style.js new file mode 100644 index 0000000..bb1b365 --- /dev/null +++ b/Support/bin/jshint/stable/style.js @@ -0,0 +1,171 @@ +"use strict"; + +exports.register = function (linter) { + // Check for properties named __proto__. This special property was + // deprecated and then re-introduced for ES6. + + linter.on("Identifier", function style_scanProto(data) { + if (linter.getOption("proto")) { + return; + } + + if (data.name === "__proto__") { + linter.warn("W103", { + line: data.line, + char: data.char, + data: [ data.name ] + }); + } + }); + + // Check for properties named __iterator__. This is a special property + // available only in browsers with JavaScript 1.7 implementation. + + linter.on("Identifier", function style_scanIterator(data) { + if (linter.getOption("iterator")) { + return; + } + + if (data.name === "__iterator__") { + linter.warn("W104", { + line: data.line, + char: data.char, + data: [ data.name ] + }); + } + }); + + // Check for dangling underscores. + + linter.on("Identifier", function style_scanDangling(data) { + if (!linter.getOption("nomen")) { + return; + } + + // Underscore.js + if (data.name === "_") { + return; + } + + // In Node, __dirname and __filename should be ignored. + if (linter.getOption("node")) { + if (/^(__dirname|__filename)$/.test(data.name) && !data.isProperty) { + return; + } + } + + if (/^(_+.*|.*_+)$/.test(data.name)) { + linter.warn("W105", { + line: data.line, + char: data.from, + data: [ "dangling '_'", data.name ] + }); + } + }); + + // Check that all identifiers are using camelCase notation. + // Exceptions: names like MY_VAR and _myVar. + + linter.on("Identifier", function style_scanCamelCase(data) { + if (!linter.getOption("camelcase")) { + return; + } + + if (data.name.replace(/^_+/, "").indexOf("_") > -1 && !data.name.match(/^[A-Z0-9_]*$/)) { + linter.warn("W106", { + line: data.line, + char: data.from, + data: [ data.name ] + }); + } + }); + + // Enforce consistency in style of quoting. + + linter.on("String", function style_scanQuotes(data) { + var quotmark = linter.getOption("quotmark"); + var code; + + if (!quotmark) { + return; + } + + // If quotmark is set to 'single' warn about all double-quotes. + + if (quotmark === "single" && data.quote !== "'") { + code = "W109"; + } + + // If quotmark is set to 'double' warn about all single-quotes. + + if (quotmark === "double" && data.quote !== "\"") { + code = "W108"; + } + + // If quotmark is set to true, remember the first quotation style + // and then warn about all others. + + if (quotmark === true) { + if (!linter.getCache("quotmark")) { + linter.setCache("quotmark", data.quote); + } + + if (linter.getCache("quotmark") !== data.quote) { + code = "W110"; + } + } + + if (code) { + linter.warn(code, { + line: data.line, + char: data.char, + }); + } + }); + + linter.on("Number", function style_scanNumbers(data) { + if (data.value.charAt(0) === ".") { + // Warn about a leading decimal point. + linter.warn("W008", { + line: data.line, + char: data.char, + data: [ data.value ] + }); + } + + if (data.value.substr(data.value.length - 1) === ".") { + // Warn about a trailing decimal point. + linter.warn("W047", { + line: data.line, + char: data.char, + data: [ data.value ] + }); + } + + if (/^00+/.test(data.value)) { + // Multiple leading zeroes. + linter.warn("W046", { + line: data.line, + char: data.char, + data: [ data.value ] + }); + } + }); + + // Warn about script URLs. + + linter.on("String", function style_scanJavaScriptURLs(data) { + var re = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; + + if (linter.getOption("scripturl")) { + return; + } + + if (re.test(data.value)) { + linter.warn("W107", { + line: data.line, + char: data.char + }); + } + }); +}; \ No newline at end of file diff --git a/Support/bin/jshint/underscore.js b/Support/bin/jshint/underscore.js new file mode 100644 index 0000000..a3d378a --- /dev/null +++ b/Support/bin/jshint/underscore.js @@ -0,0 +1,1186 @@ +// Underscore.js 1.4.0 +// http://underscorejs.org +// (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. +// Underscore may be freely distributed under the MIT license. + +(function() { + + // Baseline setup + // -------------- + + // Establish the root object, `window` in the browser, or `global` on the server. + var root = this; + + // Save the previous value of the `_` variable. + var previousUnderscore = root._; + + // Establish the object that gets returned to break out of a loop iteration. + var breaker = {}; + + // Save bytes in the minified (but not gzipped) version: + var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype; + + // Create quick reference variables for speed access to core prototypes. + var push = ArrayProto.push, + slice = ArrayProto.slice, + concat = ArrayProto.concat, + unshift = ArrayProto.unshift, + toString = ObjProto.toString, + hasOwnProperty = ObjProto.hasOwnProperty; + + // All **ECMAScript 5** native function implementations that we hope to use + // are declared here. + var + nativeForEach = ArrayProto.forEach, + nativeMap = ArrayProto.map, + nativeReduce = ArrayProto.reduce, + nativeReduceRight = ArrayProto.reduceRight, + nativeFilter = ArrayProto.filter, + nativeEvery = ArrayProto.every, + nativeSome = ArrayProto.some, + nativeIndexOf = ArrayProto.indexOf, + nativeLastIndexOf = ArrayProto.lastIndexOf, + nativeIsArray = Array.isArray, + nativeKeys = Object.keys, + nativeBind = FuncProto.bind; + + // Create a safe reference to the Underscore object for use below. + var _ = function(obj) { + if (obj instanceof _) return obj; + if (!(this instanceof _)) return new _(obj); + this._wrapped = obj; + }; + + // Export the Underscore object for **Node.js**, with + // backwards-compatibility for the old `require()` API. If we're in + // the browser, add `_` as a global object via a string identifier, + // for Closure Compiler "advanced" mode. + if (typeof exports !== 'undefined') { + if (typeof module !== 'undefined' && module.exports) { + exports = module.exports = _; + } + exports._ = _; + } else { + root['_'] = _; + } + + // Current version. + _.VERSION = '1.4.0'; + + // Collection Functions + // -------------------- + + // The cornerstone, an `each` implementation, aka `forEach`. + // Handles objects with the built-in `forEach`, arrays, and raw objects. + // Delegates to **ECMAScript 5**'s native `forEach` if available. + var each = _.each = _.forEach = function(obj, iterator, context) { + if (nativeForEach && obj.forEach === nativeForEach) { + obj.forEach(iterator, context); + } else if (obj.length === +obj.length) { + for (var i = 0, l = obj.length; i < l; i++) { + if (iterator.call(context, obj[i], i, obj) === breaker) return; + } + } else { + for (var key in obj) { + if (_.has(obj, key)) { + if (iterator.call(context, obj[key], key, obj) === breaker) return; + } + } + } + }; + + // Return the results of applying the iterator to each element. + // Delegates to **ECMAScript 5**'s native `map` if available. + _.map = _.collect = function(obj, iterator, context) { + var results = []; + if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context); + each(obj, function(value, index, list) { + results[results.length] = iterator.call(context, value, index, list); + }); + return results; + }; + + // **Reduce** builds up a single result from a list of values, aka `inject`, + // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available. + _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (nativeReduce && obj.reduce === nativeReduce) { + if (context) iterator = _.bind(iterator, context); + return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator); + } + each(obj, function(value, index, list) { + if (!initial) { + memo = value; + initial = true; + } else { + memo = iterator.call(context, memo, value, index, list); + } + }); + if (!initial) throw new TypeError('Reduce of empty array with no initial value'); + return memo; + }; + + // The right-associative version of reduce, also known as `foldr`. + // Delegates to **ECMAScript 5**'s native `reduceRight` if available. + _.reduceRight = _.foldr = function(obj, iterator, memo, context) { + var initial = arguments.length > 2; + if (nativeReduceRight && obj.reduceRight === nativeReduceRight) { + if (context) iterator = _.bind(iterator, context); + return arguments.length > 2 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator); + } + var length = obj.length; + if (length !== +length) { + var keys = _.keys(obj); + length = keys.length; + } + each(obj, function(value, index, list) { + index = keys ? keys[--length] : --length; + if (!initial) { + memo = obj[index]; + initial = true; + } else { + memo = iterator.call(context, memo, obj[index], index, list); + } + }); + if (!initial) throw new TypeError('Reduce of empty array with no initial value'); + return memo; + }; + + // Return the first value which passes a truth test. Aliased as `detect`. + _.find = _.detect = function(obj, iterator, context) { + var result; + any(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) { + result = value; + return true; + } + }); + return result; + }; + + // Return all the elements that pass a truth test. + // Delegates to **ECMAScript 5**'s native `filter` if available. + // Aliased as `select`. + _.filter = _.select = function(obj, iterator, context) { + var results = []; + if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context); + each(obj, function(value, index, list) { + if (iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Return all the elements for which a truth test fails. + _.reject = function(obj, iterator, context) { + var results = []; + each(obj, function(value, index, list) { + if (!iterator.call(context, value, index, list)) results[results.length] = value; + }); + return results; + }; + + // Determine whether all of the elements match a truth test. + // Delegates to **ECMAScript 5**'s native `every` if available. + // Aliased as `all`. + _.every = _.all = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = true; + if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context); + each(obj, function(value, index, list) { + if (!(result = result && iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if at least one element in the object matches a truth test. + // Delegates to **ECMAScript 5**'s native `some` if available. + // Aliased as `any`. + var any = _.some = _.any = function(obj, iterator, context) { + iterator || (iterator = _.identity); + var result = false; + if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context); + each(obj, function(value, index, list) { + if (result || (result = iterator.call(context, value, index, list))) return breaker; + }); + return !!result; + }; + + // Determine if the array or object contains a given value (using `===`). + // Aliased as `include`. + _.contains = _.include = function(obj, target) { + var found = false; + if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1; + found = any(obj, function(value) { + return value === target; + }); + return found; + }; + + // Invoke a method (with arguments) on every item in a collection. + _.invoke = function(obj, method) { + var args = slice.call(arguments, 2); + return _.map(obj, function(value) { + return (_.isFunction(method) ? method : value[method]).apply(value, args); + }); + }; + + // Convenience version of a common use case of `map`: fetching a property. + _.pluck = function(obj, key) { + return _.map(obj, function(value){ return value[key]; }); + }; + + // Convenience version of a common use case of `filter`: selecting only objects + // with specific `key:value` pairs. + _.where = function(obj, attrs) { + if (_.isEmpty(attrs)) return []; + return _.filter(obj, function(value) { + for (var key in attrs) { + if (attrs[key] !== value[key]) return false; + } + return true; + }); + }; + + // Return the maximum element or (element-based computation). + // Can't optimize arrays of integers longer than 65,535 elements. + // See: https://bugs.webkit.org/show_bug.cgi?id=80797 + _.max = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { + return Math.max.apply(Math, obj); + } + if (!iterator && _.isEmpty(obj)) return -Infinity; + var result = {computed : -Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed >= result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Return the minimum element (or element-based computation). + _.min = function(obj, iterator, context) { + if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) { + return Math.min.apply(Math, obj); + } + if (!iterator && _.isEmpty(obj)) return Infinity; + var result = {computed : Infinity}; + each(obj, function(value, index, list) { + var computed = iterator ? iterator.call(context, value, index, list) : value; + computed < result.computed && (result = {value : value, computed : computed}); + }); + return result.value; + }; + + // Shuffle an array. + _.shuffle = function(obj) { + var rand; + var index = 0; + var shuffled = []; + each(obj, function(value) { + rand = _.random(index++); + shuffled[index - 1] = shuffled[rand]; + shuffled[rand] = value; + }); + return shuffled; + }; + + // An internal function to generate lookup iterators. + var lookupIterator = function(value) { + return _.isFunction(value) ? value : function(obj){ return obj[value]; }; + }; + + // Sort the object's values by a criterion produced by an iterator. + _.sortBy = function(obj, value, context) { + var iterator = lookupIterator(value); + return _.pluck(_.map(obj, function(value, index, list) { + return { + value : value, + index : index, + criteria : iterator.call(context, value, index, list) + }; + }).sort(function(left, right) { + var a = left.criteria; + var b = right.criteria; + if (a !== b) { + if (a > b || a === void 0) return 1; + if (a < b || b === void 0) return -1; + } + return left.index < right.index ? -1 : 1; + }), 'value'); + }; + + // An internal function used for aggregate "group by" operations. + var group = function(obj, value, context, behavior) { + var result = {}; + var iterator = lookupIterator(value); + each(obj, function(value, index) { + var key = iterator.call(context, value, index, obj); + behavior(result, key, value); + }); + return result; + }; + + // Groups the object's values by a criterion. Pass either a string attribute + // to group by, or a function that returns the criterion. + _.groupBy = function(obj, value, context) { + return group(obj, value, context, function(result, key, value) { + (_.has(result, key) ? result[key] : (result[key] = [])).push(value); + }); + }; + + // Counts instances of an object that group by a certain criterion. Pass + // either a string attribute to count by, or a function that returns the + // criterion. + _.countBy = function(obj, value, context) { + return group(obj, value, context, function(result, key, value) { + if (!_.has(result, key)) result[key] = 0; + result[key]++; + }); + }; + + // Use a comparator function to figure out the smallest index at which + // an object should be inserted so as to maintain order. Uses binary search. + _.sortedIndex = function(array, obj, iterator, context) { + iterator = iterator == null ? _.identity : lookupIterator(iterator); + var value = iterator.call(context, obj); + var low = 0, high = array.length; + while (low < high) { + var mid = (low + high) >>> 1; + iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid; + } + return low; + }; + + // Safely convert anything iterable into a real, live array. + _.toArray = function(obj) { + if (!obj) return []; + if (obj.length === +obj.length) return slice.call(obj); + return _.values(obj); + }; + + // Return the number of elements in an object. + _.size = function(obj) { + return (obj.length === +obj.length) ? obj.length : _.keys(obj).length; + }; + + // Array Functions + // --------------- + + // Get the first element of an array. Passing **n** will return the first N + // values in the array. Aliased as `head` and `take`. The **guard** check + // allows it to work with `_.map`. + _.first = _.head = _.take = function(array, n, guard) { + return (n != null) && !guard ? slice.call(array, 0, n) : array[0]; + }; + + // Returns everything but the last entry of the array. Especially useful on + // the arguments object. Passing **n** will return all the values in + // the array, excluding the last N. The **guard** check allows it to work with + // `_.map`. + _.initial = function(array, n, guard) { + return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n)); + }; + + // Get the last element of an array. Passing **n** will return the last N + // values in the array. The **guard** check allows it to work with `_.map`. + _.last = function(array, n, guard) { + if ((n != null) && !guard) { + return slice.call(array, Math.max(array.length - n, 0)); + } else { + return array[array.length - 1]; + } + }; + + // Returns everything but the first entry of the array. Aliased as `tail` and `drop`. + // Especially useful on the arguments object. Passing an **n** will return + // the rest N values in the array. The **guard** + // check allows it to work with `_.map`. + _.rest = _.tail = _.drop = function(array, n, guard) { + return slice.call(array, (n == null) || guard ? 1 : n); + }; + + // Trim out all falsy values from an array. + _.compact = function(array) { + return _.filter(array, function(value){ return !!value; }); + }; + + // Internal implementation of a recursive `flatten` function. + var flatten = function(input, shallow, output) { + each(input, function(value) { + if (_.isArray(value)) { + shallow ? push.apply(output, value) : flatten(value, shallow, output); + } else { + output.push(value); + } + }); + return output; + }; + + // Return a completely flattened version of an array. + _.flatten = function(array, shallow) { + return flatten(array, shallow, []); + }; + + // Return a version of the array that does not contain the specified value(s). + _.without = function(array) { + return _.difference(array, slice.call(arguments, 1)); + }; + + // Produce a duplicate-free version of the array. If the array has already + // been sorted, you have the option of using a faster algorithm. + // Aliased as `unique`. + _.uniq = _.unique = function(array, isSorted, iterator, context) { + var initial = iterator ? _.map(array, iterator, context) : array; + var results = []; + var seen = []; + each(initial, function(value, index) { + if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) { + seen.push(value); + results.push(array[index]); + } + }); + return results; + }; + + // Produce an array that contains the union: each distinct element from all of + // the passed-in arrays. + _.union = function() { + return _.uniq(concat.apply(ArrayProto, arguments)); + }; + + // Produce an array that contains every item shared between all the + // passed-in arrays. + _.intersection = function(array) { + var rest = slice.call(arguments, 1); + return _.filter(_.uniq(array), function(item) { + return _.every(rest, function(other) { + return _.indexOf(other, item) >= 0; + }); + }); + }; + + // Take the difference between one array and a number of other arrays. + // Only the elements present in just the first array will remain. + _.difference = function(array) { + var rest = concat.apply(ArrayProto, slice.call(arguments, 1)); + return _.filter(array, function(value){ return !_.contains(rest, value); }); + }; + + // Zip together multiple lists into a single array -- elements that share + // an index go together. + _.zip = function() { + var args = slice.call(arguments); + var length = _.max(_.pluck(args, 'length')); + var results = new Array(length); + for (var i = 0; i < length; i++) { + results[i] = _.pluck(args, "" + i); + } + return results; + }; + + // Converts lists into objects. Pass either a single array of `[key, value]` + // pairs, or two parallel arrays of the same length -- one of keys, and one of + // the corresponding values. + _.object = function(list, values) { + var result = {}; + for (var i = 0, l = list.length; i < l; i++) { + if (values) { + result[list[i]] = values[i]; + } else { + result[list[i][0]] = list[i][1]; + } + } + return result; + }; + + // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**), + // we need this function. Return the position of the first occurrence of an + // item in an array, or -1 if the item is not included in the array. + // Delegates to **ECMAScript 5**'s native `indexOf` if available. + // If the array is large and already in sort order, pass `true` + // for **isSorted** to use binary search. + _.indexOf = function(array, item, isSorted) { + var i = 0, l = array.length; + if (isSorted) { + if (typeof isSorted == 'number') { + i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted); + } else { + i = _.sortedIndex(array, item); + return array[i] === item ? i : -1; + } + } + if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted); + for (; i < l; i++) if (array[i] === item) return i; + return -1; + }; + + // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available. + _.lastIndexOf = function(array, item, fromIndex) { + if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item, fromIndex); + var i = (fromIndex != null ? fromIndex : array.length); + while (i--) if (array[i] === item) return i; + return -1; + }; + + // Generate an integer Array containing an arithmetic progression. A port of + // the native Python `range()` function. See + // [the Python documentation](http://docs.python.org/library/functions.html#range). + _.range = function(start, stop, step) { + if (arguments.length <= 1) { + stop = start || 0; + start = 0; + } + step = arguments[2] || 1; + + var len = Math.max(Math.ceil((stop - start) / step), 0); + var idx = 0; + var range = new Array(len); + + while(idx < len) { + range[idx++] = start; + start += step; + } + + return range; + }; + + // Function (ahem) Functions + // ------------------ + + // Reusable constructor function for prototype setting. + var ctor = function(){}; + + // Create a function bound to a given object (assigning `this`, and arguments, + // optionally). Binding with arguments is also known as `curry`. + // Delegates to **ECMAScript 5**'s native `Function.bind` if available. + // We check for `func.bind` first, to fail fast when `func` is undefined. + _.bind = function bind(func, context) { + var bound, args; + if (func.bind === nativeBind && nativeBind) return nativeBind.apply(func, slice.call(arguments, 1)); + if (!_.isFunction(func)) throw new TypeError; + args = slice.call(arguments, 2); + return bound = function() { + if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments))); + ctor.prototype = func.prototype; + var self = new ctor; + var result = func.apply(self, args.concat(slice.call(arguments))); + if (Object(result) === result) return result; + return self; + }; + }; + + // Bind all of an object's methods to that object. Useful for ensuring that + // all callbacks defined on an object belong to it. + _.bindAll = function(obj) { + var funcs = slice.call(arguments, 1); + if (funcs.length == 0) funcs = _.functions(obj); + each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); }); + return obj; + }; + + // Memoize an expensive function by storing its results. + _.memoize = function(func, hasher) { + var memo = {}; + hasher || (hasher = _.identity); + return function() { + var key = hasher.apply(this, arguments); + return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments)); + }; + }; + + // Delays a function for the given number of milliseconds, and then calls + // it with the arguments supplied. + _.delay = function(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function(){ return func.apply(null, args); }, wait); + }; + + // Defers a function, scheduling it to run after the current call stack has + // cleared. + _.defer = function(func) { + return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1))); + }; + + // Returns a function, that, when invoked, will only be triggered at most once + // during a given window of time. + _.throttle = function(func, wait) { + var context, args, timeout, throttling, more, result; + var whenDone = _.debounce(function(){ more = throttling = false; }, wait); + return function() { + context = this; args = arguments; + var later = function() { + timeout = null; + if (more) { + result = func.apply(context, args); + } + whenDone(); + }; + if (!timeout) timeout = setTimeout(later, wait); + if (throttling) { + more = true; + } else { + throttling = true; + result = func.apply(context, args); + } + whenDone(); + return result; + }; + }; + + // Returns a function, that, as long as it continues to be invoked, will not + // be triggered. The function will be called after it stops being called for + // N milliseconds. If `immediate` is passed, trigger the function on the + // leading edge, instead of the trailing. + _.debounce = function(func, wait, immediate) { + var timeout, result; + return function() { + var context = this, args = arguments; + var later = function() { + timeout = null; + if (!immediate) result = func.apply(context, args); + }; + var callNow = immediate && !timeout; + clearTimeout(timeout); + timeout = setTimeout(later, wait); + if (callNow) result = func.apply(context, args); + return result; + }; + }; + + // Returns a function that will be executed at most one time, no matter how + // often you call it. Useful for lazy initialization. + _.once = function(func) { + var ran = false, memo; + return function() { + if (ran) return memo; + ran = true; + memo = func.apply(this, arguments); + func = null; + return memo; + }; + }; + + // Returns the first function passed as an argument to the second, + // allowing you to adjust arguments, run code before and after, and + // conditionally execute the original function. + _.wrap = function(func, wrapper) { + return function() { + var args = [func]; + push.apply(args, arguments); + return wrapper.apply(this, args); + }; + }; + + // Returns a function that is the composition of a list of functions, each + // consuming the return value of the function that follows. + _.compose = function() { + var funcs = arguments; + return function() { + var args = arguments; + for (var i = funcs.length - 1; i >= 0; i--) { + args = [funcs[i].apply(this, args)]; + } + return args[0]; + }; + }; + + // Returns a function that will only be executed after being called N times. + _.after = function(times, func) { + if (times <= 0) return func(); + return function() { + if (--times < 1) { + return func.apply(this, arguments); + } + }; + }; + + // Object Functions + // ---------------- + + // Retrieve the names of an object's properties. + // Delegates to **ECMAScript 5**'s native `Object.keys` + _.keys = nativeKeys || function(obj) { + if (obj !== Object(obj)) throw new TypeError('Invalid object'); + var keys = []; + for (var key in obj) if (_.has(obj, key)) keys[keys.length] = key; + return keys; + }; + + // Retrieve the values of an object's properties. + _.values = function(obj) { + var values = []; + for (var key in obj) if (_.has(obj, key)) values.push(obj[key]); + return values; + }; + + // Convert an object into a list of `[key, value]` pairs. + _.pairs = function(obj) { + var pairs = []; + for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]); + return pairs; + }; + + // Invert the keys and values of an object. The values must be serializable. + _.invert = function(obj) { + var result = {}; + for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key; + return result; + }; + + // Return a sorted list of the function names available on the object. + // Aliased as `methods` + _.functions = _.methods = function(obj) { + var names = []; + for (var key in obj) { + if (_.isFunction(obj[key])) names.push(key); + } + return names.sort(); + }; + + // Extend a given object with all the properties in passed-in object(s). + _.extend = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Return a copy of the object only containing the whitelisted properties. + _.pick = function(obj) { + var copy = {}; + var keys = concat.apply(ArrayProto, slice.call(arguments, 1)); + each(keys, function(key) { + if (key in obj) copy[key] = obj[key]; + }); + return copy; + }; + + // Return a copy of the object without the blacklisted properties. + _.omit = function(obj) { + var copy = {}; + var keys = concat.apply(ArrayProto, slice.call(arguments, 1)); + for (var key in obj) { + if (!_.contains(keys, key)) copy[key] = obj[key]; + } + return copy; + }; + + // Fill in a given object with default properties. + _.defaults = function(obj) { + each(slice.call(arguments, 1), function(source) { + for (var prop in source) { + if (obj[prop] == null) obj[prop] = source[prop]; + } + }); + return obj; + }; + + // Create a (shallow-cloned) duplicate of an object. + _.clone = function(obj) { + if (!_.isObject(obj)) return obj; + return _.isArray(obj) ? obj.slice() : _.extend({}, obj); + }; + + // Invokes interceptor with the obj, and then returns obj. + // The primary purpose of this method is to "tap into" a method chain, in + // order to perform operations on intermediate results within the chain. + _.tap = function(obj, interceptor) { + interceptor(obj); + return obj; + }; + + // Internal recursive comparison function for `isEqual`. + var eq = function(a, b, aStack, bStack) { + // Identical objects are equal. `0 === -0`, but they aren't identical. + // See the Harmony `egal` proposal: http://wiki.ecmascript.org/doku.php?id=harmony:egal. + if (a === b) return a !== 0 || 1 / a == 1 / b; + // A strict comparison is necessary because `null == undefined`. + if (a == null || b == null) return a === b; + // Unwrap any wrapped objects. + if (a instanceof _) a = a._wrapped; + if (b instanceof _) b = b._wrapped; + // Compare `[[Class]]` names. + var className = toString.call(a); + if (className != toString.call(b)) return false; + switch (className) { + // Strings, numbers, dates, and booleans are compared by value. + case '[object String]': + // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is + // equivalent to `new String("5")`. + return a == String(b); + case '[object Number]': + // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for + // other numeric values. + return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b); + case '[object Date]': + case '[object Boolean]': + // Coerce dates and booleans to numeric primitive values. Dates are compared by their + // millisecond representations. Note that invalid dates with millisecond representations + // of `NaN` are not equivalent. + return +a == +b; + // RegExps are compared by their source patterns and flags. + case '[object RegExp]': + return a.source == b.source && + a.global == b.global && + a.multiline == b.multiline && + a.ignoreCase == b.ignoreCase; + } + if (typeof a != 'object' || typeof b != 'object') return false; + // Assume equality for cyclic structures. The algorithm for detecting cyclic + // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`. + var length = aStack.length; + while (length--) { + // Linear search. Performance is inversely proportional to the number of + // unique nested structures. + if (aStack[length] == a) return bStack[length] == b; + } + // Add the first object to the stack of traversed objects. + aStack.push(a); + bStack.push(b); + var size = 0, result = true; + // Recursively compare objects and arrays. + if (className == '[object Array]') { + // Compare array lengths to determine if a deep comparison is necessary. + size = a.length; + result = size == b.length; + if (result) { + // Deep compare the contents, ignoring non-numeric properties. + while (size--) { + if (!(result = eq(a[size], b[size], aStack, bStack))) break; + } + } + } else { + // Objects with different constructors are not equivalent, but `Object`s + // from different frames are. + var aCtor = a.constructor, bCtor = b.constructor; + if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) && + _.isFunction(bCtor) && (bCtor instanceof bCtor))) { + return false; + } + // Deep compare objects. + for (var key in a) { + if (_.has(a, key)) { + // Count the expected number of properties. + size++; + // Deep compare each member. + if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break; + } + } + // Ensure that both objects contain the same number of properties. + if (result) { + for (key in b) { + if (_.has(b, key) && !(size--)) break; + } + result = !size; + } + } + // Remove the first object from the stack of traversed objects. + aStack.pop(); + bStack.pop(); + return result; + }; + + // Perform a deep comparison to check if two objects are equal. + _.isEqual = function(a, b) { + return eq(a, b, [], []); + }; + + // Is a given array, string, or object empty? + // An "empty" object has no enumerable own-properties. + _.isEmpty = function(obj) { + if (obj == null) return true; + if (_.isArray(obj) || _.isString(obj)) return obj.length === 0; + for (var key in obj) if (_.has(obj, key)) return false; + return true; + }; + + // Is a given value a DOM element? + _.isElement = function(obj) { + return !!(obj && obj.nodeType === 1); + }; + + // Is a given value an array? + // Delegates to ECMA5's native Array.isArray + _.isArray = nativeIsArray || function(obj) { + return toString.call(obj) == '[object Array]'; + }; + + // Is a given variable an object? + _.isObject = function(obj) { + return obj === Object(obj); + }; + + // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp. + each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) { + _['is' + name] = function(obj) { + return toString.call(obj) == '[object ' + name + ']'; + }; + }); + + // Define a fallback version of the method in browsers (ahem, IE), where + // there isn't any inspectable "Arguments" type. + if (!_.isArguments(arguments)) { + _.isArguments = function(obj) { + return !!(obj && _.has(obj, 'callee')); + }; + } + + // Optimize `isFunction` if appropriate. + if (typeof (/./) !== 'function') { + _.isFunction = function(obj) { + return typeof obj === 'function'; + }; + } + + // Is a given object a finite number? + _.isFinite = function(obj) { + return _.isNumber(obj) && isFinite(obj); + }; + + // Is the given value `NaN`? (NaN is the only number which does not equal itself). + _.isNaN = function(obj) { + return _.isNumber(obj) && obj != +obj; + }; + + // Is a given value a boolean? + _.isBoolean = function(obj) { + return obj === true || obj === false || toString.call(obj) == '[object Boolean]'; + }; + + // Is a given value equal to null? + _.isNull = function(obj) { + return obj === null; + }; + + // Is a given variable undefined? + _.isUndefined = function(obj) { + return obj === void 0; + }; + + // Shortcut function for checking if an object has a given property directly + // on itself (in other words, not on a prototype). + _.has = function(obj, key) { + return hasOwnProperty.call(obj, key); + }; + + // Utility Functions + // ----------------- + + // Run Underscore.js in *noConflict* mode, returning the `_` variable to its + // previous owner. Returns a reference to the Underscore object. + _.noConflict = function() { + root._ = previousUnderscore; + return this; + }; + + // Keep the identity function around for default iterators. + _.identity = function(value) { + return value; + }; + + // Run a function **n** times. + _.times = function(n, iterator, context) { + for (var i = 0; i < n; i++) iterator.call(context, i); + }; + + // Return a random integer between min and max (inclusive). + _.random = function(min, max) { + if (max == null) { + max = min; + min = 0; + } + return min + (0 | Math.random() * (max - min + 1)); + }; + + // List of HTML entities for escaping. + var entityMap = { + escape: { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''', + '/': '/' + } + }; + entityMap.unescape = _.invert(entityMap.escape); + + // Regexes containing the keys and values listed immediately above. + var entityRegexes = { + escape: new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'), + unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g') + }; + + // Functions for escaping and unescaping strings to/from HTML interpolation. + _.each(['escape', 'unescape'], function(method) { + _[method] = function(string) { + if (string == null) return ''; + return ('' + string).replace(entityRegexes[method], function(match) { + return entityMap[method][match]; + }); + }; + }); + + // If the value of the named property is a function then invoke it; + // otherwise, return it. + _.result = function(object, property) { + if (object == null) return null; + var value = object[property]; + return _.isFunction(value) ? value.call(object) : value; + }; + + // Add your own custom functions to the Underscore object. + _.mixin = function(obj) { + each(_.functions(obj), function(name){ + var func = _[name] = obj[name]; + _.prototype[name] = function() { + var args = [this._wrapped]; + push.apply(args, arguments); + return result.call(this, func.apply(_, args)); + }; + }); + }; + + // Generate a unique integer id (unique within the entire client session). + // Useful for temporary DOM ids. + var idCounter = 0; + _.uniqueId = function(prefix) { + var id = idCounter++; + return prefix ? prefix + id : id; + }; + + // By default, Underscore uses ERB-style template delimiters, change the + // following template settings to use alternative delimiters. + _.templateSettings = { + evaluate : /<%([\s\S]+?)%>/g, + interpolate : /<%=([\s\S]+?)%>/g, + escape : /<%-([\s\S]+?)%>/g + }; + + // When customizing `templateSettings`, if you don't want to define an + // interpolation, evaluation or escaping regex, we need one that is + // guaranteed not to match. + var noMatch = /(.)^/; + + // Certain characters need to be escaped so that they can be put into a + // string literal. + var escapes = { + "'": "'", + '\\': '\\', + '\r': 'r', + '\n': 'n', + '\t': 't', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g; + + // JavaScript micro-templating, similar to John Resig's implementation. + // Underscore templating handles arbitrary delimiters, preserves whitespace, + // and correctly escapes quotes within interpolated code. + _.template = function(text, data, settings) { + settings = _.defaults({}, settings, _.templateSettings); + + // Combine delimiters into one regular expression via alternation. + var matcher = new RegExp([ + (settings.escape || noMatch).source, + (settings.interpolate || noMatch).source, + (settings.evaluate || noMatch).source + ].join('|') + '|$', 'g'); + + // Compile the template source, escaping string literals appropriately. + var index = 0; + var source = "__p+='"; + text.replace(matcher, function(match, escape, interpolate, evaluate, offset) { + source += text.slice(index, offset) + .replace(escaper, function(match) { return '\\' + escapes[match]; }); + source += + escape ? "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'" : + interpolate ? "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'" : + evaluate ? "';\n" + evaluate + "\n__p+='" : ''; + index = offset + match.length; + }); + source += "';\n"; + + // If a variable is not specified, place data values in local scope. + if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n'; + + source = "var __t,__p='',__j=Array.prototype.join," + + "print=function(){__p+=__j.call(arguments,'');};\n" + + source + "return __p;\n"; + + try { + var render = new Function(settings.variable || 'obj', '_', source); + } catch (e) { + e.source = source; + throw e; + } + + if (data) return render(data, _); + var template = function(data) { + return render.call(this, data, _); + }; + + // Provide the compiled function source as a convenience for precompilation. + template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}'; + + return template; + }; + + // Add a "chain" function, which will delegate to the wrapper. + _.chain = function(obj) { + return _(obj).chain(); + }; + + // OOP + // --------------- + // If Underscore is called as a function, it returns a wrapped object that + // can be used OO-style. This wrapper holds altered versions of all the + // underscore functions. Wrapped objects may be chained. + + // Helper function to continue chaining intermediate results. + var result = function(obj) { + return this._chain ? _(obj).chain() : obj; + }; + + // Add all of the Underscore functions to the wrapper object. + _.mixin(_); + + // Add all mutator Array functions to the wrapper. + each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + var obj = this._wrapped; + method.apply(obj, arguments); + if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0]; + return result.call(this, obj); + }; + }); + + // Add all accessor Array functions to the wrapper. + each(['concat', 'join', 'slice'], function(name) { + var method = ArrayProto[name]; + _.prototype[name] = function() { + return result.call(this, method.apply(this._wrapped, arguments)); + }; + }); + + _.extend(_.prototype, { + + // Start chaining a wrapped Underscore object. + chain: function() { + this._chain = true; + return this; + }, + + // Extracts the result from a wrapped and chained object. + value: function() { + return this._wrapped; + } + + }); + +}).call(this);