diff options
Diffstat (limited to 'apps/it/static/js/ui/external/jshint.js')
| -rw-r--r-- | apps/it/static/js/ui/external/jshint.js | 4835 |
1 files changed, 0 insertions, 4835 deletions
diff --git a/apps/it/static/js/ui/external/jshint.js b/apps/it/static/js/ui/external/jshint.js deleted file mode 100644 index 8f06d9b..0000000 --- a/apps/it/static/js/ui/external/jshint.js +++ /dev/null @@ -1,4835 +0,0 @@ -/*! - * 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. - * - * 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 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 1) at which the lint was found - character : The character (relative to 1) 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 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, quotmark: double, unused: true -*/ - -/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%", "(begin)", - "(breakage)", "(character)", "(context)", "(error)", "(explicitNewcap)", "(global)", - "(identifier)", "(last)", "(lastcharacter)", "(line)", "(loopage)", "(metrics)", - "(name)", "(onevar)", "(params)", "(scope)", "(statement)", "(verb)", "(tokens)", "(catch)", - "*", "+", "++", "-", "--", "\/", "<", "<=", "==", - "===", ">", ">=", $, $$, $A, $F, $H, $R, $break, $continue, $w, Abstract, Ajax, - __filename, __dirname, ActiveXObject, Array, ArrayBuffer, ArrayBufferView, Audio, - Autocompleter, Asset, Boolean, Builder, Buffer, Browser, Blob, COM, CScript, Canvas, - CustomAnimation, Class, Control, ComplexityCount, Chain, Color, Cookie, Core, DataView, Date, - Debug, Draggable, Draggables, Droppables, Document, DomReady, DOMEvent, 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, importScripts, Int16Array, Int32Array, Int8Array, - Insertion, InputValidator, JSON, Keyboard, Locale, LN10, LN2, LOG10E, LOG2E, - MAX_VALUE, MIN_VALUE, Map, Mask, Math, MenuItem, MessageChannel, MessageEvent, MessagePort, - MoveAnimation, MooTools, MutationObserver, NaN, 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, Set, - 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, WeakMap, WSH, WScript, XDomainRequest, Web, Window, XMLDOM, XMLHttpRequest, XMLSerializer, - XPathEvaluator, XPathException, XPathExpression, XPathNamespace, XPathNSResolver, XPathResult, - "\\", a, abs, addEventListener, address, alert, apply, applicationCache, arguments, arity, - asi, atob, b, basic, basicToken, bitwise, blacklist, block, blur, boolOptions, boss, - browser, btoa, c, call, callee, caller, camelcase, cases, charAt, charCodeAt, character, - clearInterval, clearTimeout, close, closed, closure, comment, complexityCount, 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, elem, - eqeq, eqeqeq, eqnull, errors, es5, escape, esnext, eval, event, evidence, evil, - ex, exception, exec, exps, expr, exports, FileReader, first, floor, focus, forEach, - 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, internals, 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, max, maxcomplexity, maxdepth, maxerr, maxlen, maxstatements, maxparams, - member, message, meta, module, moveBy, moveTo, mootools, multistr, name, navigator, new, newcap, - nestedBlockDepth, 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, - postMessage, pop, 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, scope, screen, scripturl, scrollBy, - scrollTo, scrollbar, search, seal, self, send, serialize, sessionStorage, setInterval, setTimeout, - setter, setterToken, shift, slice, smarttabs, sort, spawn, split, statement, statementCount, stack, - status, start, strict, sub, substr, supernew, shadow, supplant, sum, sync, test, toLowerCase, - toString, toUpperCase, toint32, token, tokens, top, trailing, type, typeOf, Uint16Array, - Uint32Array, Uint8Array, undef, undefs, unused, urls, validthis, value, valueOf, var, vars, - version, verifyMaxParametersPerFunction, verifyMaxStatementsPerFunction, - verifyMaxComplexityPerFunction, verifyMaxNestedBlockDepthPerFunction, WebSocket, withstmt, white, - window, windows, Worker, worker, wsh, yui, YUI, Y, YUI_config*/ - -/*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 - unused : true, // if variables should be always 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 - }, - - // 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 - }, - - // 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, - 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, - 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, - 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 - }, - - declared, // Globals that were declared using /*global ... */ syntax. - - devel = { - alert : false, - confirm : false, - console : false, - Debug : false, - opera : false, - prompt : false - }, - - dojo = { - dojo : false, - dijit : false, - dojox : false, - define : false, - "require" : false - }, - - 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, - 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 - }, - - nexttoken, - - node = { - __filename : false, - __dirname : false, - Buffer : 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 - }, - - 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, - Map : false, - Math : false, - NaN : 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 - }, - - // widely adopted global names that are not part of ECMAScript standard - nonstandard = { - escape : false, - unescape : false - }, - - directive, - syntax = {}, - tab, - token, - unuseds, - urls, - useESNextSyntax, - warnings, - - worker = { - importScripts : true, - postMessage : true, - self : true - }, - - wsh = { - ActiveXObject : true, - Enumerator : true, - GetObject : true, - ScriptEngine : true, - ScriptEngineBuildVersion : true, - ScriptEngineMajorVersion : true, - ScriptEngineMinorVersion : true, - VBArray : true, - WSH : true, - WScript : true, - XDomainRequest : true - }, - - yui = { - YUI : false, - Y : false, - YUI_config : false - }; - // 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*([(){}\[.,:;'"~\?\]#@]|==?=?|\/=(?!(\S*\/[gim]?))|\/(\*(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); - } - } - - function isString(obj) { - return Object.prototype.toString.call(obj) === "[object String]"; - } - - // Provide critical ES5 functions to ES3. - - if (typeof Array.isArray !== "function") { - Array.isArray = function (o) { - return Object.prototype.toString.apply(o) === "[object Array]"; - }; - } - - if (!Array.prototype.forEach) { - Array.prototype.forEach = function (fn, scope) { - var len = this.length; - - for (var i = 0; i < len; i++) { - fn.call(scope || this, this[i], i, this); - } - }; - } - - if (!Array.prototype.indexOf) { - Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) { - if (this === null || this === undefined) { - throw new TypeError(); - } - - var t = new Object(this); - var len = t.length >>> 0; - - if (len === 0) { - return -1; - } - - var n = 0; - if (arguments.length > 0) { - n = Number(arguments[1]); - if (n != n) { // shortcut for verifying if it's NaN - n = 0; - } else if (n !== 0 && n != Infinity && n != -Infinity) { - n = (n > 0 || -1) * Math.floor(Math.abs(n)); - } - } - - if (n >= len) { - return -1; - } - - var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0); - for (; k < len; k++) { - if (k in t && t[k] === searchElement) { - return k; - } - } - - return -1; - }; - } - - 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 - - function isAlpha(str) { - return (str >= "a" && str <= "z\uffff") || - (str >= "A" && str <= "Z\uffff"); - } - - function isDigit(str) { - return (str >= "0" && str <= "9"); - } - - function isIdentifier(token, value) { - if (!token) - return false; - - if (!token.identifier || token.value !== value) - 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 (is_own(o, n) && !is_own(JSHINT.blacklist, n)) { - t[n] = o[n]; - } - } - } - - function updatePredefined() { - Object.keys(JSHINT.blacklist).forEach(function (key) { - delete predefined[key]; - }); - } - - 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.worker) { - combine(predefined, worker); - } - - if (option.wsh) { - combine(predefined, wsh); - } - - if (option.esnext) { - useESNextSyntax(); - } - - if (option.globalstrict && option.strict !== false) { - option.strict = true; - } - - if (option.yui) { - combine(predefined, yui); - } - } - - - // 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, - scope: JSHINT.scope, - a: a, - b: b, - c: c, - d: d - }; - w.reason = supplant(m, 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) { - 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; - } - - -// lexical analysis and token construction - - var lex = (function lex() { - var character, from, line, s; - -// Private lex methods - - function nextLine() { - var at, - match, - 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) { - // negative look-behind for "//" - match = s.match(/(\/\/)? \t/); - at = match && !match[1] ? 0 : -1; - } 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; - - function checkName(name) { - if (!option.proto && name === "__proto__") { - warningAt("The '{a}' property is deprecated.", line, from, name); - return; - } - - if (!option.iterator && name === "__iterator__") { - warningAt("'{a}' is only available in JavaScript 1.7.", line, from, name); - return; - } - - // Check for dangling underscores unless we're in Node - // environment and this identifier represents built-in - // Node globals with underscores. - - var hasDangling = /^(_+.*|.*_+)$/.test(name); - - if (option.nomen && hasDangling && name !== "_") { - if (option.node && token.id !== "." && /^(__dirname|__filename)$/.test(name)) - return; - - warningAt("Unexpected {a} in '{b}'.", line, from, "dangling '_'", name); - return; - } - - // Check for non-camelcase names. Names like MY_VAR and - // _myVar are okay though. - - if (option.camelcase) { - if (name.replace(/^_+/, "").indexOf("_") > -1 && !name.match(/^[A-Z0-9_]*$/)) { - warningAt("Identifier '{a}' is not in camel case.", line, from, value); - } - } - } - - 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; - checkName(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; - case "!": - if (s.charAt(j - 2) === "<") - break; - /*falls through*/ - 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 (isAlpha(c) || c === "_" || c === "$") { - return it("(identifier)", t); - } - - // number - - if (isDigit(c)) { - if (!isFinite(Number(t))) { - warningAt("Bad number '{a}'.", - line, character, t); - } - if (isAlpha(s.substr(0, 1))) { - warningAt("Missing space after '{a}'.", - line, character, t); - } - if (c === "0") { - d = t.substr(1, 1); - if (isDigit(d)) { - 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); - } - } - 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 (s.charAt(0) === "=") { - 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 (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); - break; // No reason to continue checking numbers. - } - 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, token) { - if (t === "hasOwnProperty") { - warning("'hasOwnProperty' is a really bad name."); - } - - // Define t in the current function in the current scope. - if (type === "exception") { - if (is_own(funct["(context)"], t)) { - if (funct[t] !== true && !option.node) { - warning("Value of '{a}' may be overwritten in IE.", nexttoken, t); - } - } - } - - 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 (token) { - funct["(tokens)"][t] = token; - } - - 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 nt = nexttoken; - var o = nt.value; - var quotmarkValue = option.quotmark; - var predef = {}; - var b, obj, filter, t, tn, v, minus; - - switch (o) { - case "*/": - error("Unbegun comment."); - break; - case "/*members": - case "/*member": - o = "/*members"; - if (!membersOnly) { - membersOnly = {}; - } - obj = membersOnly; - option.quotmark = false; - break; - case "/*jshint": - case "/*jslint": - obj = option; - filter = boolOptions; - break; - case "/*global": - obj = predef; - break; - default: - error("What?"); - } - - t = lex.token(); - -loop: - for (;;) { - minus = false; - for (;;) { - if (t.type === "special" && t.value === "*/") { - break loop; - } - if (t.id !== "(endline)" && t.id !== ",") { - break; - } - t = lex.token(); - } - - if (o === "/*global" && t.value === "-") { - minus = true; - 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); - } - - var numericVals = [ - "maxstatements", - "maxparams", - "maxdepth", - "maxcomplexity", - "maxerr", - "maxlen", - "indent" - ]; - - if (numericVals.indexOf(t.value) > -1 && (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); - } - - if (t.value === "indent") - obj.white = true; - - obj[t.value] = 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 (t.value === "quotmark" && (o === "/*jshint")) { - switch (v.value) { - case "true": - obj.quotmark = true; - break; - case "false": - obj.quotmark = false; - break; - case "double": - case "single": - obj.quotmark = v.value; - break; - default: - 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"; - } - - if (t.value === "newcap") - obj["(explicitNewcap)"] = 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; - - if (o === "/*global" && minus === true) { - JSHINT.blacklist[t.value] = t.value; - updatePredefined(); - } - - t = v; - } - } - - if (o === "/*members") { - option.quotmark = quotmarkValue; - } - - combine(predefined, predef); - - for (var key in predef) { - if (is_own(predef, key)) { - declared[key] = nt; - } - } - - 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.value === ";" && right.value === ";") { - return; - } - 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 (isIdentifier(left, "NaN") || isIdentifier(right, "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) { - 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("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) { - 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 && nexttoken.value !== "{") { - 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; - } - - // 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 (!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.", t); - } - - 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 = [], 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") { - if (!option["(explicitNewcap)"]) - 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; - - var metrics = funct["(metrics)"]; - metrics.nestedBlockDepth += 1; - metrics.verifyMaxNestedBlockDepthPerFunction(); - - 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); - - metrics.statementCount += a.length; - - 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."); - } - metrics.nestedBlockDepth -= 1; - 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": - 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("</").reach = true; - delim("<!"); - delim("<!--"); - 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("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.", prevtoken, 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") && !is_own(global, c.value)) { - 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.", - token, token.value); - } - 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 ("Number String Boolean Date Object".indexOf(left.value) === -1) { - 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.", token); - } - if (!option.evil) { - if (left.value === "eval" || left.value === "Function" || - left.value === "execScript") { - warning("eval is evil.", 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( - "Implied eval is evil. Pass a function instead of a string.", 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( - "Implied eval is evil. Pass a function instead of a string.", left); - addInternalSrc(left, p[0].value); - } - } - 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( -"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.", - prevtoken, 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 === ",") { - if (!option.es5) - 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 next = nexttoken; - var params = []; - var ident; - - advance("("); - nospace(); - - if (nexttoken.id === ")") { - advance(")"); - return; - } - - for (;;) { - ident = identifier(true); - params.push(ident); - addlabel(ident, "unused", token); - if (nexttoken.id === ",") { - comma(); - } else { - advance(")", next); - nospace(prevtoken, token); - return params; - } - } - } - - - function doFunction(name, statement) { - var f; - var oldOption = option; - var oldScope = scope; - - option = Object.create(option); - scope = Object.create(scope); - - funct = { - "(name)" : name || "\"" + anonname + "\"", - "(line)" : nexttoken.line, - "(character)": nexttoken.character, - "(context)" : funct, - "(breakage)" : 0, - "(loopage)" : 0, - "(metrics)" : createMetrics(nexttoken), - "(scope)" : scope, - "(statement)": statement, - "(tokens)" : {} - }; - - f = funct; - token.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(); - - scope = oldScope; - option = oldOption; - funct["(last)"] = token.line; - funct["(lastcharacter)"] = token.character; - funct = funct["(context)"]; - - return f; - } - - function createMetrics(functionStartToken) { - return { - statementCount: 0, - nestedBlockDepth: -1, - ComplexityCount: 1, - verifyMaxStatementsPerFunction: function () { - if (option.maxstatements && - this.statementCount > option.maxstatements) { - var message = "Too many statements per function (" + this.statementCount + ")."; - warning(message, functionStartToken); - } - }, - - verifyMaxParametersPerFunction: function (params) { - params = params || []; - - if (option.maxparams && params.length > option.maxparams) { - var message = "Too many parameters per function (" + params.length + ")."; - warning(message, functionStartToken); - } - }, - - verifyMaxNestedBlockDepthPerFunction: function () { - if (option.maxdepth && - this.nestedBlockDepth > 0 && - this.nestedBlockDepth === option.maxdepth + 1) { - var message = "Blocks are nested too deeply (" + this.nestedBlockDepth + ")."; - warning(message); - } - }, - - verifyMaxComplexityPerFunction: function () { - var max = option.maxcomplexity; - var cc = this.ComplexityCount; - if (max && cc > max) { - var message = "Cyclomatic complexity is too high per function (" + cc + ")."; - warning(message, functionStartToken); - } - } - }; - } - - function increaseComplexityCount() { - funct["(metrics)"].ComplexityCount += 1; - } - - - (function (x) { - x.nud = function () { - var b, f, i, 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", token); - - 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", token); - - doFunction(i, { statement: 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; - increaseComplexityCount(); - 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; - - function doCatch() { - var oldScope = scope; - var e; - - advance("catch"); - nonadjacent(token, nexttoken); - advance("("); - - scope = Object.create(oldScope); - - e = nexttoken.value; - if (nexttoken.type !== "(identifier)") { - e = null; - warning("Expected an identifier and instead saw '{a}'.", nexttoken, e); - } - - advance(); - advance(")"); - - funct = { - "(name)" : "(catch)", - "(line)" : nexttoken.line, - "(character)": nexttoken.character, - "(context)" : funct, - "(breakage)" : funct["(breakage)"], - "(loopage)" : funct["(loopage)"], - "(scope)" : scope, - "(statement)": false, - "(metrics)" : createMetrics(nexttoken), - "(catch)" : true, - "(tokens)" : {} - }; - - if (e) { - addlabel(e, "exception"); - } - - token.funct = funct; - functions.push(funct); - - block(false); - - scope = oldScope; - - funct["(last)"] = token.line; - funct["(lastcharacter)"] = token.character; - funct = funct["(context)"]; - } - - block(false); - - if (nexttoken.id === "catch") { - increaseComplexityCount(); - doCatch(); - b = true; - } - - 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; - increaseComplexityCount(); - 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)); - increaseComplexityCount(); - 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; - increaseComplexityCount(); - - 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; - increaseComplexityCount(); - 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; - var optionKeys; - var newOptionObj = {}; - - if (o && o.scope) { - JSHINT.scope = o.scope; - } else { - JSHINT.errors = []; - JSHINT.undefs = []; - JSHINT.internals = []; - JSHINT.blacklist = {}; - JSHINT.scope = "(main)"; - } - - predefined = Object.create(standard); - declared = Object.create(null); - combine(predefined, g || {}); - - if (o) { - a = o.predef; - if (a) { - if (!Array.isArray(a) && typeof a === "object") { - a = Object.keys(a); - } - a.forEach(function (item) { - var slice; - if (item[0] === "-") { - slice = item.slice(1); - JSHINT.blacklist[slice] = slice; - } else { - predefined[item] = true; - } - }); - } - - optionKeys = Object.keys(o); - for (x = 0; x < optionKeys.length; x++) { - newOptionObj[optionKeys[x]] = o[optionKeys[x]]; - - if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false) - newOptionObj["(explicitNewcap)"] = true; - - if (optionKeys[x] === "indent") - newOptionObj.white = true; - } - } - - 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, - "(tokens)": {}, - "(metrics)": createMetrics(nexttoken) - }; - functions = [funct]; - urls = []; - stack = null; - member = {}; - membersOnly = null; - implied = {}; - inblock = false; - lookahead = []; - jsonmode = false; - warnings = 0; - lines = []; - unuseds = []; - - if (!isString(s) && !Array.isArray(s)) { - errorAt("Input is neither a string nor an array of strings.", 0); - return false; - } - - if (isString(s) && /^\s*$/g.test(s)) { - errorAt("Input is an empty string.", 0); - return false; - } - - if (s.length === 0) { - errorAt("Input is an empty array.", 0); - return false; - } - - 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; - }; - - var warnUnused = function (name, token) { - var line = token.line; - var chr = token.character; - - if (option.unused) - warningAt("'{a}' is defined but never used.", line, chr, name); - - unuseds.push({ - name: name, - line: line, - character: chr - }); - }; - - var checkUnused = function (func, key) { - var type = func[key]; - var token = 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; - - warnUnused(key, token); - }; - - // 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)); - } - } - - functions.forEach(function (func) { - for (var key in func) { - if (is_own(func, key)) { - checkUnused(func, key); - } - } - - if (!func["(params)"]) - return; - - var params = func["(params)"].slice(); - var param = params.pop(); - var type; - - while (param) { - type = func[param]; - - // 'undefined' is a special case for (function (window, undefined) { ... })(); - // patterns. - - if (param === "undefined") - return; - - if (type !== "unused" && type !== "unction") - return; - - warnUnused(param, func["(tokens)"][param]); - param = params.pop(); - } - }); - - for (var key in declared) { - if (is_own(declared, key) && !is_own(global, key)) { - warnUnused(key, declared[key]); - } - } - } 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); - } - } - - // 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; - }; - - // Data summary. - itself.data = function () { - var data = { - functions: [], - options: option - }; - var implieds = []; - var members = []; - var fu, f, i, j, n, globals; - - 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 (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; -}
\ No newline at end of file |