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/*! |
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* JSHint, by JSHint Community. |
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* |
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* This file (and this file only) is licensed under the same slightly modified |
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* MIT license that JSLint is. It stops evil-doers everywhere. |
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* |
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* JSHint is a derivative work of JSLint: |
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* |
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* Copyright (c) 2002 Douglas Crockford (www.JSLint.com) |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the "Software"), |
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* to deal in the Software without restriction, including without limitation |
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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* and/or sell copies of the Software, and to permit persons to whom |
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* the Software is furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included |
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* in all copies or substantial portions of the Software. |
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* |
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* The Software shall be used for Good, not Evil. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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* DEALINGS IN THE SOFTWARE. |
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* |
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*/ |
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/* |
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JSHINT is a global function. It takes two parameters. |
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var myResult = JSHINT(source, option); |
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The first parameter is either a string or an array of strings. If it is a |
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string, it will be split on '\n' or '\r'. If it is an array of strings, it |
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is assumed that each string represents one line. The source can be a |
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JavaScript text or a JSON text. |
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The second parameter is an optional object of options which control the |
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operation of JSHINT. Most of the options are booleans: They are all |
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optional and have a default value of false. One of the options, predef, |
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can be an array of names, which will be used to declare global variables, |
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or an object whose keys are used as global names, with a boolean value |
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that determines if they are assignable. |
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If it checks out, JSHINT returns true. Otherwise, it returns false. |
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If false, you can inspect JSHINT.errors to find out the problems. |
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JSHINT.errors is an array of objects containing these members: |
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{ |
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line : The line (relative to 1) at which the lint was found |
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character : The character (relative to 1) at which the lint was found |
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reason : The problem |
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evidence : The text line in which the problem occurred |
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raw : The raw message before the details were inserted |
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a : The first detail |
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b : The second detail |
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c : The third detail |
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d : The fourth detail |
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} |
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If a fatal error was found, a null will be the last element of the |
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JSHINT.errors array. |
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You can request a data structure which contains JSHint's results. |
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var myData = JSHINT.data(); |
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It returns a structure with this form: |
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{ |
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errors: [ |
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{ |
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line: NUMBER, |
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character: NUMBER, |
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reason: STRING, |
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evidence: STRING |
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} |
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], |
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functions: [ |
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name: STRING, |
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line: NUMBER, |
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character: NUMBER, |
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last: NUMBER, |
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lastcharacter: NUMBER, |
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param: [ |
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STRING |
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], |
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closure: [ |
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STRING |
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], |
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var: [ |
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STRING |
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], |
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exception: [ |
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STRING |
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], |
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outer: [ |
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STRING |
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], |
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unused: [ |
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STRING |
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], |
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global: [ |
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STRING |
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], |
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label: [ |
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STRING |
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] |
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], |
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globals: [ |
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STRING |
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], |
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member: { |
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STRING: NUMBER |
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}, |
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unused: [ |
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{ |
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name: STRING, |
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line: NUMBER |
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} |
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], |
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implieds: [ |
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{ |
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name: STRING, |
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line: NUMBER |
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} |
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], |
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urls: [ |
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STRING |
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], |
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json: BOOLEAN |
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} |
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Empty arrays will not be included. |
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*/ |
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/*jshint |
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evil: true, nomen: false, onevar: false, regexp: false, strict: true, boss: true, |
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undef: true, maxlen: 100, indent: 4, quotmark: double, unused: true |
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*/ |
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/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%", "(begin)", |
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"(breakage)", "(character)", "(context)", "(error)", "(explicitNewcap)", "(global)", |
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"(identifier)", "(last)", "(lastcharacter)", "(line)", "(loopage)", "(metrics)", |
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"(name)", "(onevar)", "(params)", "(scope)", "(statement)", "(verb)", "(tokens)", "(catch)", |
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"*", "+", "++", "-", "--", "\/", "<", "<=", "==", |
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"===", ">", ">=", $, $$, $A, $F, $H, $R, $break, $continue, $w, Abstract, Ajax, |
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__filename, __dirname, ActiveXObject, Array, ArrayBuffer, ArrayBufferView, Audio, |
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Autocompleter, Asset, Boolean, Builder, Buffer, Browser, Blob, COM, CScript, Canvas, |
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CustomAnimation, Class, Control, ComplexityCount, Chain, Color, Cookie, Core, DataView, Date, |
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Debug, Draggable, Draggables, Droppables, Document, DomReady, DOMEvent, DOMReady, DOMParser, |
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Drag, E, Enumerator, Enumerable, Element, Elements, Error, Effect, EvalError, Event, |
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Events, FadeAnimation, Field, Flash, Float32Array, Float64Array, Form, |
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FormField, Frame, FormData, Function, Fx, GetObject, Group, Hash, HotKey, |
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HTMLElement, HTMLAnchorElement, HTMLBaseElement, HTMLBlockquoteElement, |
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HTMLBodyElement, HTMLBRElement, HTMLButtonElement, HTMLCanvasElement, HTMLDirectoryElement, |
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HTMLDivElement, HTMLDListElement, HTMLFieldSetElement, |
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HTMLFontElement, HTMLFormElement, HTMLFrameElement, HTMLFrameSetElement, |
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HTMLHeadElement, HTMLHeadingElement, HTMLHRElement, HTMLHtmlElement, |
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HTMLIFrameElement, HTMLImageElement, HTMLInputElement, HTMLIsIndexElement, |
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HTMLLabelElement, HTMLLayerElement, HTMLLegendElement, HTMLLIElement, |
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HTMLLinkElement, HTMLMapElement, HTMLMenuElement, HTMLMetaElement, |
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HTMLModElement, HTMLObjectElement, HTMLOListElement, HTMLOptGroupElement, |
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HTMLOptionElement, HTMLParagraphElement, HTMLParamElement, HTMLPreElement, |
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HTMLQuoteElement, HTMLScriptElement, HTMLSelectElement, HTMLStyleElement, |
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HtmlTable, HTMLTableCaptionElement, HTMLTableCellElement, HTMLTableColElement, |
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HTMLTableElement, HTMLTableRowElement, HTMLTableSectionElement, |
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HTMLTextAreaElement, HTMLTitleElement, HTMLUListElement, HTMLVideoElement, |
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Iframe, IframeShim, Image, importScripts, Int16Array, Int32Array, Int8Array, |
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Insertion, InputValidator, JSON, Keyboard, Locale, LN10, LN2, LOG10E, LOG2E, |
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MAX_VALUE, MIN_VALUE, Map, Mask, Math, MenuItem, MessageChannel, MessageEvent, MessagePort, |
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MoveAnimation, MooTools, MutationObserver, NaN, Native, NEGATIVE_INFINITY, Node, NodeFilter, |
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Number, Object, ObjectRange, |
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Option, Options, OverText, PI, POSITIVE_INFINITY, PeriodicalExecuter, Point, Position, Prototype, |
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RangeError, Rectangle, ReferenceError, RegExp, ResizeAnimation, Request, RotateAnimation, Set, |
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SQRT1_2, SQRT2, ScrollBar, ScriptEngine, ScriptEngineBuildVersion, |
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ScriptEngineMajorVersion, ScriptEngineMinorVersion, Scriptaculous, Scroller, |
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Slick, Slider, Selector, SharedWorker, String, Style, SyntaxError, Sortable, Sortables, |
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SortableObserver, Sound, Spinner, System, Swiff, Text, TextArea, Template, |
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Timer, Tips, Type, TypeError, Toggle, Try, "use strict", unescape, URI, URIError, URL, |
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VBArray, WeakMap, WSH, WScript, XDomainRequest, Web, Window, XMLDOM, XMLHttpRequest, XMLSerializer, |
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XPathEvaluator, XPathException, XPathExpression, XPathNamespace, XPathNSResolver, XPathResult, |
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"\\", a, abs, addEventListener, address, alert, apply, applicationCache, arguments, arity, |
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asi, atob, b, basic, basicToken, bitwise, blacklist, block, blur, boolOptions, boss, |
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browser, btoa, c, call, callee, caller, camelcase, cases, charAt, charCodeAt, character, |
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clearInterval, clearTimeout, close, closed, closure, comment, complexityCount, condition, |
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confirm, console, constructor, content, couch, create, css, curly, d, data, datalist, dd, debug, |
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decodeURI, decodeURIComponent, defaultStatus, defineClass, deserialize, devel, document, |
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dojo, dijit, dojox, define, else, emit, encodeURI, encodeURIComponent, elem, |
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eqeq, eqeqeq, eqnull, errors, es5, escape, esnext, eval, event, evidence, evil, |
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ex, exception, exec, exps, expr, exports, FileReader, first, floor, focus, forEach, |
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forin, fragment, frames, from, fromCharCode, fud, funcscope, funct, function, functions, |
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g, gc, getComputedStyle, getRow, getter, getterToken, GLOBAL, global, globals, globalstrict, |
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hasOwnProperty, help, history, i, id, identifier, immed, implieds, importPackage, include, |
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indent, indexOf, init, ins, internals, instanceOf, isAlpha, isApplicationRunning, isArray, |
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isDigit, isFinite, isNaN, iterator, java, join, jshint, |
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JSHINT, json, jquery, jQuery, keys, label, labelled, last, lastcharacter, lastsemic, laxbreak, |
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laxcomma, latedef, lbp, led, left, length, line, load, loadClass, localStorage, location, |
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log, loopfunc, m, match, max, maxcomplexity, maxdepth, maxerr, maxlen, maxstatements, maxparams, |
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member, message, meta, module, moveBy, moveTo, mootools, multistr, name, navigator, new, newcap, |
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nestedBlockDepth, noarg, node, noempty, nomen, nonew, nonstandard, nud, onbeforeunload, onblur, |
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onerror, onevar, onecase, onfocus, onload, onresize, onunload, open, openDatabase, openURL, |
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opener, opera, options, outer, param, parent, parseFloat, parseInt, passfail, plusplus, |
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postMessage, pop, predef, print, process, prompt, proto, prototype, prototypejs, provides, push, |
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quit, quotmark, range, raw, reach, reason, regexp, readFile, readUrl, regexdash, |
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removeEventListener, replace, report, require, reserved, resizeBy, resizeTo, resolvePath, |
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resumeUpdates, respond, rhino, right, runCommand, scroll, scope, screen, scripturl, scrollBy, |
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scrollTo, scrollbar, search, seal, self, send, serialize, sessionStorage, setInterval, setTimeout, |
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setter, setterToken, shift, slice, smarttabs, sort, spawn, split, statement, statementCount, stack, |
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status, start, strict, sub, substr, supernew, shadow, supplant, sum, sync, test, toLowerCase, |
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toString, toUpperCase, toint32, token, tokens, top, trailing, type, typeOf, Uint16Array, |
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Uint32Array, Uint8Array, undef, undefs, unused, urls, validthis, value, valueOf, var, vars, |
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version, verifyMaxParametersPerFunction, verifyMaxStatementsPerFunction, |
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verifyMaxComplexityPerFunction, verifyMaxNestedBlockDepthPerFunction, WebSocket, withstmt, white, |
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window, windows, Worker, worker, wsh, yui, YUI, Y, YUI_config*/ |
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/*global exports: false */ |
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// We build the application inside a function so that we produce only a single |
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// global variable. That function will be invoked immediately, and its return |
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// value is the JSHINT function itself. |
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var JSHINT = (function () { |
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"use strict"; |
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var anonname, // The guessed name for anonymous functions. |
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// These are operators that should not be used with the ! operator. |
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bang = { |
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"<" : true, |
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"<=" : true, |
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"==" : true, |
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"===": true, |
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"!==": true, |
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"!=" : true, |
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">" : true, |
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">=" : true, |
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"+" : true, |
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"-" : true, |
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"*" : true, |
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"/" : true, |
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"%" : true |
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}, |
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// These are the JSHint boolean options. |
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boolOptions = { |
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asi : true, // if automatic semicolon insertion should be tolerated |
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bitwise : true, // if bitwise operators should not be allowed |
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boss : true, // if advanced usage of assignments should be allowed |
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browser : true, // if the standard browser globals should be predefined |
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camelcase : true, // if identifiers should be required in camel case |
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couch : true, // if CouchDB globals should be predefined |
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curly : true, // if curly braces around all blocks should be required |
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debug : true, // if debugger statements should be allowed |
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devel : true, // if logging globals should be predefined (console, |
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// alert, etc.) |
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dojo : true, // if Dojo Toolkit globals should be predefined |
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eqeqeq : true, // if === should be required |
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eqnull : true, // if == null comparisons should be tolerated |
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es5 : true, // if ES5 syntax should be allowed |
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esnext : true, // if es.next specific syntax should be allowed |
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evil : true, // if eval should be allowed |
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expr : true, // if ExpressionStatement should be allowed as Programs |
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forin : true, // if for in statements must filter |
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funcscope : true, // if only function scope should be used for scope tests |
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globalstrict: true, // if global "use strict"; should be allowed (also |
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// enables 'strict') |
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immed : true, // if immediate invocations must be wrapped in parens |
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iterator : true, // if the `__iterator__` property should be allowed |
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jquery : true, // if jQuery globals should be predefined |
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lastsemic : true, // if semicolons may be ommitted for the trailing |
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// statements inside of a one-line blocks. |
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latedef : true, // if the use before definition should not be tolerated |
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laxbreak : true, // if line breaks should not be checked |
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laxcomma : true, // if line breaks should not be checked around commas |
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loopfunc : true, // if functions should be allowed to be defined within |
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// loops |
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mootools : true, // if MooTools globals should be predefined |
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multistr : true, // allow multiline strings |
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newcap : true, // if constructor names must be capitalized |
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noarg : true, // if arguments.caller and arguments.callee should be |
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// disallowed |
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node : true, // if the Node.js environment globals should be |
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// predefined |
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noempty : true, // if empty blocks should be disallowed |
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nonew : true, // if using `new` for side-effects should be disallowed |
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nonstandard : true, // if non-standard (but widely adopted) globals should |
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// be predefined |
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nomen : true, // if names should be checked |
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onevar : true, // if only one var statement per function should be |
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// allowed |
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onecase : true, // if one case switch statements should be allowed |
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passfail : true, // if the scan should stop on first error |
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plusplus : true, // if increment/decrement should not be allowed |
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proto : true, // if the `__proto__` property should be allowed |
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prototypejs : true, // if Prototype and Scriptaculous globals should be |
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// predefined |
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regexdash : true, // if unescaped first/last dash (-) inside brackets |
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// should be tolerated |
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regexp : true, // if the . should not be allowed in regexp literals |
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rhino : true, // if the Rhino environment globals should be predefined |
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undef : true, // if variables should be declared before used |
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unused : true, // if variables should be always used |
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scripturl : true, // if script-targeted URLs should be tolerated |
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shadow : true, // if variable shadowing should be tolerated |
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smarttabs : true, // if smarttabs should be tolerated |
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// (http://www.emacswiki.org/emacs/SmartTabs) |
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strict : true, // require the "use strict"; pragma |
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sub : true, // if all forms of subscript notation are tolerated |
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supernew : true, // if `new function () { ... };` and `new Object;` |
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// should be tolerated |
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trailing : true, // if trailing whitespace rules apply |
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validthis : true, // if 'this' inside a non-constructor function is valid. |
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// This is a function scoped option only. |
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withstmt : true, // if with statements should be allowed |
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white : true, // if strict whitespace rules apply |
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worker : true, // if Web Worker script symbols should be allowed |
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wsh : true, // if the Windows Scripting Host environment globals |
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// should be predefined |
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yui : true // YUI variables should be predefined |
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}, |
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// These are the JSHint options that can take any value |
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// (we use this object to detect invalid options) |
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valOptions = { |
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maxlen : false, |
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indent : false, |
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maxerr : false, |
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predef : false, |
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quotmark : false, //'single'|'double'|true |
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scope : false, |
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maxstatements: false, // {int} max statements per function |
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maxdepth : false, // {int} max nested block depth per function |
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maxparams : false, // {int} max params per function |
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maxcomplexity: false // {int} max cyclomatic complexity per function |
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}, |
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// These are JSHint boolean options which are shared with JSLint |
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// where the definition in JSHint is opposite JSLint |
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invertedOptions = { |
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bitwise : true, |
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forin : true, |
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newcap : true, |
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nomen : true, |
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plusplus : true, |
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regexp : true, |
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undef : true, |
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white : true, |
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// Inverted and renamed, use JSHint name here |
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eqeqeq : true, |
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onevar : true |
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}, |
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// These are JSHint boolean options which are shared with JSLint |
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// where the name has been changed but the effect is unchanged |
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renamedOptions = { |
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eqeq : "eqeqeq", |
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vars : "onevar", |
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windows : "wsh" |
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}, |
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// browser contains a set of global names which are commonly provided by a |
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// web browser environment. |
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browser = { |
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ArrayBuffer : false, |
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ArrayBufferView : false, |
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Audio : false, |
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Blob : false, |
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addEventListener : false, |
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applicationCache : false, |
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atob : false, |
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blur : false, |
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btoa : false, |
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clearInterval : false, |
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clearTimeout : false, |
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close : false, |
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closed : false, |
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DataView : false, |
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DOMParser : false, |
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defaultStatus : false, |
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document : false, |
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event : false, |
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FileReader : false, |
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Float32Array : false, |
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Float64Array : false, |
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FormData : false, |
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focus : false, |
|
398 |
frames : false, |
|
399 |
getComputedStyle : false, |
|
400 |
HTMLElement : false, |
|
401 |
HTMLAnchorElement : false, |
|
402 |
HTMLBaseElement : false, |
|
403 |
HTMLBlockquoteElement : false, |
|
404 |
HTMLBodyElement : false, |
|
405 |
HTMLBRElement : false, |
|
406 |
HTMLButtonElement : false, |
|
407 |
HTMLCanvasElement : false, |
|
408 |
HTMLDirectoryElement : false, |
|
409 |
HTMLDivElement : false, |
|
410 |
HTMLDListElement : false, |
|
411 |
HTMLFieldSetElement : false, |
|
412 |
HTMLFontElement : false, |
|
413 |
HTMLFormElement : false, |
|
414 |
HTMLFrameElement : false, |
|
415 |
HTMLFrameSetElement : false, |
|
416 |
HTMLHeadElement : false, |
|
417 |
HTMLHeadingElement : false, |
|
418 |
HTMLHRElement : false, |
|
419 |
HTMLHtmlElement : false, |
|
420 |
HTMLIFrameElement : false, |
|
421 |
HTMLImageElement : false, |
|
422 |
HTMLInputElement : false, |
|
423 |
HTMLIsIndexElement : false, |
|
424 |
HTMLLabelElement : false, |
|
425 |
HTMLLayerElement : false, |
|
426 |
HTMLLegendElement : false, |
|
427 |
HTMLLIElement : false, |
|
428 |
HTMLLinkElement : false, |
|
429 |
HTMLMapElement : false, |
|
430 |
HTMLMenuElement : false, |
|
431 |
HTMLMetaElement : false, |
|
432 |
HTMLModElement : false, |
|
433 |
HTMLObjectElement : false, |
|
434 |
HTMLOListElement : false, |
|
435 |
HTMLOptGroupElement : false, |
|
436 |
HTMLOptionElement : false, |
|
437 |
HTMLParagraphElement : false, |
|
438 |
HTMLParamElement : false, |
|
439 |
HTMLPreElement : false, |
|
440 |
HTMLQuoteElement : false, |
|
441 |
HTMLScriptElement : false, |
|
442 |
HTMLSelectElement : false, |
|
443 |
HTMLStyleElement : false, |
|
444 |
HTMLTableCaptionElement : false, |
|
445 |
HTMLTableCellElement : false, |
|
446 |
HTMLTableColElement : false, |
|
447 |
HTMLTableElement : false, |
|
448 |
HTMLTableRowElement : false, |
|
449 |
HTMLTableSectionElement : false, |
|
450 |
HTMLTextAreaElement : false, |
|
451 |
HTMLTitleElement : false, |
|
452 |
HTMLUListElement : false, |
|
453 |
HTMLVideoElement : false, |
|
454 |
history : false, |
|
455 |
Int16Array : false, |
|
456 |
Int32Array : false, |
|
457 |
Int8Array : false, |
|
458 |
Image : false, |
|
459 |
length : false, |
|
460 |
localStorage : false, |
|
461 |
location : false, |
|
462 |
MessageChannel : false, |
|
463 |
MessageEvent : false, |
|
464 |
MessagePort : false, |
|
465 |
moveBy : false, |
|
466 |
moveTo : false, |
|
467 |
MutationObserver : false, |
|
468 |
name : false, |
|
469 |
Node : false, |
|
470 |
NodeFilter : false, |
|
471 |
navigator : false, |
|
472 |
onbeforeunload : true, |
|
473 |
onblur : true, |
|
474 |
onerror : true, |
|
475 |
onfocus : true, |
|
476 |
onload : true, |
|
477 |
onresize : true, |
|
478 |
onunload : true, |
|
479 |
open : false, |
|
480 |
openDatabase : false, |
|
481 |
opener : false, |
|
482 |
Option : false, |
|
483 |
parent : false, |
|
484 |
print : false, |
|
485 |
removeEventListener : false, |
|
486 |
resizeBy : false, |
|
487 |
resizeTo : false, |
|
488 |
screen : false, |
|
489 |
scroll : false, |
|
490 |
scrollBy : false, |
|
491 |
scrollTo : false, |
|
492 |
sessionStorage : false, |
|
493 |
setInterval : false, |
|
494 |
setTimeout : false, |
|
495 |
SharedWorker : false, |
|
496 |
status : false, |
|
497 |
top : false, |
|
498 |
Uint16Array : false, |
|
499 |
Uint32Array : false, |
|
500 |
Uint8Array : false, |
|
501 |
WebSocket : false, |
|
502 |
window : false, |
|
503 |
Worker : false, |
|
504 |
XMLHttpRequest : false, |
|
505 |
XMLSerializer : false, |
|
506 |
XPathEvaluator : false, |
|
507 |
XPathException : false, |
|
508 |
XPathExpression : false, |
|
509 |
XPathNamespace : false, |
|
510 |
XPathNSResolver : false, |
|
511 |
XPathResult : false |
|
512 |
}, |
|
513 |
|
|
514 |
couch = { |
|
515 |
"require" : false, |
|
516 |
respond : false, |
|
517 |
getRow : false, |
|
518 |
emit : false, |
|
519 |
send : false, |
|
520 |
start : false, |
|
521 |
sum : false, |
|
522 |
log : false, |
|
523 |
exports : false, |
|
524 |
module : false, |
|
525 |
provides : false |
|
526 |
}, |
|
527 |
|
|
528 |
declared, // Globals that were declared using /*global ... */ syntax. |
|
529 |
|
|
530 |
devel = { |
|
531 |
alert : false, |
|
532 |
confirm : false, |
|
533 |
console : false, |
|
534 |
Debug : false, |
|
535 |
opera : false, |
|
536 |
prompt : false |
|
537 |
}, |
|
538 |
|
|
539 |
dojo = { |
|
540 |
dojo : false, |
|
541 |
dijit : false, |
|
542 |
dojox : false, |
|
543 |
define : false, |
|
544 |
"require" : false |
|
545 |
}, |
|
546 |
|
|
547 |
funct, // The current function |
|
548 |
|
|
549 |
functionicity = [ |
|
550 |
"closure", "exception", "global", "label", |
|
551 |
"outer", "unused", "var" |
|
552 |
], |
|
553 |
|
|
554 |
functions, // All of the functions |
|
555 |
|
|
556 |
global, // The global scope |
|
557 |
implied, // Implied globals |
|
558 |
inblock, |
|
559 |
indent, |
|
560 |
jsonmode, |
|
561 |
|
|
562 |
jquery = { |
|
563 |
"$" : false, |
|
564 |
jQuery : false |
|
565 |
}, |
|
566 |
|
|
567 |
lines, |
|
568 |
lookahead, |
|
569 |
member, |
|
570 |
membersOnly, |
|
571 |
|
|
572 |
mootools = { |
|
573 |
"$" : false, |
|
574 |
"$$" : false, |
|
575 |
Asset : false, |
|
576 |
Browser : false, |
|
577 |
Chain : false, |
|
578 |
Class : false, |
|
579 |
Color : false, |
|
580 |
Cookie : false, |
|
581 |
Core : false, |
|
582 |
Document : false, |
|
583 |
DomReady : false, |
|
584 |
DOMEvent : false, |
|
585 |
DOMReady : false, |
|
586 |
Drag : false, |
|
587 |
Element : false, |
|
588 |
Elements : false, |
|
589 |
Event : false, |
|
590 |
Events : false, |
|
591 |
Fx : false, |
|
592 |
Group : false, |
|
593 |
Hash : false, |
|
594 |
HtmlTable : false, |
|
595 |
Iframe : false, |
|
596 |
IframeShim : false, |
|
597 |
InputValidator : false, |
|
598 |
instanceOf : false, |
|
599 |
Keyboard : false, |
|
600 |
Locale : false, |
|
601 |
Mask : false, |
|
602 |
MooTools : false, |
|
603 |
Native : false, |
|
604 |
Options : false, |
|
605 |
OverText : false, |
|
606 |
Request : false, |
|
607 |
Scroller : false, |
|
608 |
Slick : false, |
|
609 |
Slider : false, |
|
610 |
Sortables : false, |
|
611 |
Spinner : false, |
|
612 |
Swiff : false, |
|
613 |
Tips : false, |
|
614 |
Type : false, |
|
615 |
typeOf : false, |
|
616 |
URI : false, |
|
617 |
Window : false |
|
618 |
}, |
|
619 |
|
|
620 |
nexttoken, |
|
621 |
|
|
622 |
node = { |
|
623 |
__filename : false, |
|
624 |
__dirname : false, |
|
625 |
Buffer : false, |
|
626 |
console : false, |
|
627 |
exports : true, // In Node it is ok to exports = module.exports = foo(); |
|
628 |
GLOBAL : false, |
|
629 |
global : false, |
|
630 |
module : false, |
|
631 |
process : false, |
|
632 |
require : false, |
|
633 |
setTimeout : false, |
|
634 |
clearTimeout : false, |
|
635 |
setInterval : false, |
|
636 |
clearInterval : false |
|
637 |
}, |
|
638 |
|
|
639 |
noreach, |
|
640 |
option, |
|
641 |
predefined, // Global variables defined by option |
|
642 |
prereg, |
|
643 |
prevtoken, |
|
644 |
|
|
645 |
prototypejs = { |
|
646 |
"$" : false, |
|
647 |
"$$" : false, |
|
648 |
"$A" : false, |
|
649 |
"$F" : false, |
|
650 |
"$H" : false, |
|
651 |
"$R" : false, |
|
652 |
"$break" : false, |
|
653 |
"$continue" : false, |
|
654 |
"$w" : false, |
|
655 |
Abstract : false, |
|
656 |
Ajax : false, |
|
657 |
Class : false, |
|
658 |
Enumerable : false, |
|
659 |
Element : false, |
|
660 |
Event : false, |
|
661 |
Field : false, |
|
662 |
Form : false, |
|
663 |
Hash : false, |
|
664 |
Insertion : false, |
|
665 |
ObjectRange : false, |
|
666 |
PeriodicalExecuter: false, |
|
667 |
Position : false, |
|
668 |
Prototype : false, |
|
669 |
Selector : false, |
|
670 |
Template : false, |
|
671 |
Toggle : false, |
|
672 |
Try : false, |
|
673 |
Autocompleter : false, |
|
674 |
Builder : false, |
|
675 |
Control : false, |
|
676 |
Draggable : false, |
|
677 |
Draggables : false, |
|
678 |
Droppables : false, |
|
679 |
Effect : false, |
|
680 |
Sortable : false, |
|
681 |
SortableObserver : false, |
|
682 |
Sound : false, |
|
683 |
Scriptaculous : false |
|
684 |
}, |
|
685 |
|
|
686 |
quotmark, |
|
687 |
|
|
688 |
rhino = { |
|
689 |
defineClass : false, |
|
690 |
deserialize : false, |
|
691 |
gc : false, |
|
692 |
help : false, |
|
693 |
importPackage: false, |
|
694 |
"java" : false, |
|
695 |
load : false, |
|
696 |
loadClass : false, |
|
697 |
print : false, |
|
698 |
quit : false, |
|
699 |
readFile : false, |
|
700 |
readUrl : false, |
|
701 |
runCommand : false, |
|
702 |
seal : false, |
|
703 |
serialize : false, |
|
704 |
spawn : false, |
|
705 |
sync : false, |
|
706 |
toint32 : false, |
|
707 |
version : false |
|
708 |
}, |
|
709 |
|
|
710 |
scope, // The current scope |
|
711 |
stack, |
|
712 |
|
|
713 |
// standard contains the global names that are provided by the |
|
714 |
// ECMAScript standard. |
|
715 |
standard = { |
|
716 |
Array : false, |
|
717 |
Boolean : false, |
|
718 |
Date : false, |
|
719 |
decodeURI : false, |
|
720 |
decodeURIComponent : false, |
|
721 |
encodeURI : false, |
|
722 |
encodeURIComponent : false, |
|
723 |
Error : false, |
|
724 |
"eval" : false, |
|
725 |
EvalError : false, |
|
726 |
Function : false, |
|
727 |
hasOwnProperty : false, |
|
728 |
isFinite : false, |
|
729 |
isNaN : false, |
|
730 |
JSON : false, |
|
731 |
Map : false, |
|
732 |
Math : false, |
|
733 |
NaN : false, |
|
734 |
Number : false, |
|
735 |
Object : false, |
|
736 |
parseInt : false, |
|
737 |
parseFloat : false, |
|
738 |
RangeError : false, |
|
739 |
ReferenceError : false, |
|
740 |
RegExp : false, |
|
741 |
Set : false, |
|
742 |
String : false, |
|
743 |
SyntaxError : false, |
|
744 |
TypeError : false, |
|
745 |
URIError : false, |
|
746 |
WeakMap : false |
|
747 |
}, |
|
748 |
|
|
749 |
// widely adopted global names that are not part of ECMAScript standard |
|
750 |
nonstandard = { |
|
751 |
escape : false, |
|
752 |
unescape : false |
|
753 |
}, |
|
754 |
|
|
755 |
directive, |
|
756 |
syntax = {}, |
|
757 |
tab, |
|
758 |
token, |
|
759 |
unuseds, |
|
760 |
urls, |
|
761 |
useESNextSyntax, |
|
762 |
warnings, |
|
763 |
|
|
764 |
worker = { |
|
765 |
importScripts : true, |
|
766 |
postMessage : true, |
|
767 |
self : true |
|
768 |
}, |
|
769 |
|
|
770 |
wsh = { |
|
771 |
ActiveXObject : true, |
|
772 |
Enumerator : true, |
|
773 |
GetObject : true, |
|
774 |
ScriptEngine : true, |
|
775 |
ScriptEngineBuildVersion : true, |
|
776 |
ScriptEngineMajorVersion : true, |
|
777 |
ScriptEngineMinorVersion : true, |
|
778 |
VBArray : true, |
|
779 |
WSH : true, |
|
780 |
WScript : true, |
|
781 |
XDomainRequest : true |
|
782 |
}, |
|
783 |
|
|
784 |
yui = { |
|
785 |
YUI : false, |
|
786 |
Y : false, |
|
787 |
YUI_config : false |
|
788 |
}; |
|
789 |
// Regular expressions. Some of these are stupidly long. |
|
790 |
var ax, cx, tx, nx, nxg, lx, ix, jx, ft; |
|
791 |
(function () { |
|
792 |
/*jshint maxlen:300 */ |
|
793 |
|
|
794 |
// unsafe comment or string |
|
795 |
ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i; |
|
796 |
|
|
797 |
// unsafe characters that are silently deleted by one or more browsers |
|
798 |
cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; |
|
799 |
|
|
800 |
// token |
|
801 |
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]+)?)/; |
|
802 |
|
|
803 |
// characters in strings that need escapement |
|
804 |
nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; |
|
805 |
nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; |
|
806 |
|
|
807 |
// star slash |
|
808 |
lx = /\*\//; |
|
809 |
|
|
810 |
// identifier |
|
811 |
ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/; |
|
812 |
|
|
813 |
// javascript url |
|
814 |
jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; |
|
815 |
|
|
816 |
// catches /* falls through */ comments |
|
817 |
ft = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/; |
|
818 |
}()); |
|
819 |
|
|
820 |
function F() {} // Used by Object.create |
|
821 |
|
|
822 |
function is_own(object, name) { |
|
823 |
// The object.hasOwnProperty method fails when the property under consideration |
|
824 |
// is named 'hasOwnProperty'. So we have to use this more convoluted form. |
|
825 |
return Object.prototype.hasOwnProperty.call(object, name); |
|
826 |
} |
|
827 |
|
|
828 |
function checkOption(name, t) { |
|
829 |
if (valOptions[name] === undefined && boolOptions[name] === undefined) { |
|
830 |
warning("Bad option: '" + name + "'.", t); |
|
831 |
} |
|
832 |
} |
|
833 |
|
|
834 |
function isString(obj) { |
|
835 |
return Object.prototype.toString.call(obj) === "[object String]"; |
|
836 |
} |
|
837 |
|
|
838 |
// Provide critical ES5 functions to ES3. |
|
839 |
|
|
840 |
if (typeof Array.isArray !== "function") { |
|
841 |
Array.isArray = function (o) { |
|
842 |
return Object.prototype.toString.apply(o) === "[object Array]"; |
|
843 |
}; |
|
844 |
} |
|
845 |
|
|
846 |
if (!Array.prototype.forEach) { |
|
847 |
Array.prototype.forEach = function (fn, scope) { |
|
848 |
var len = this.length; |
|
849 |
|
|
850 |
for (var i = 0; i < len; i++) { |
|
851 |
fn.call(scope || this, this[i], i, this); |
|
852 |
} |
|
853 |
}; |
|
854 |
} |
|
855 |
|
|
856 |
if (!Array.prototype.indexOf) { |
|
857 |
Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) { |
|
858 |
if (this === null || this === undefined) { |
|
859 |
throw new TypeError(); |
|
860 |
} |
|
861 |
|
|
862 |
var t = new Object(this); |
|
863 |
var len = t.length >>> 0; |
|
864 |
|
|
865 |
if (len === 0) { |
|
866 |
return -1; |
|
867 |
} |
|
868 |
|
|
869 |
var n = 0; |
|
870 |
if (arguments.length > 0) { |
|
871 |
n = Number(arguments[1]); |
|
872 |
if (n != n) { // shortcut for verifying if it's NaN |
|
873 |
n = 0; |
|
874 |
} else if (n !== 0 && n != Infinity && n != -Infinity) { |
|
875 |
n = (n > 0 || -1) * Math.floor(Math.abs(n)); |
|
876 |
} |
|
877 |
} |
|
878 |
|
|
879 |
if (n >= len) { |
|
880 |
return -1; |
|
881 |
} |
|
882 |
|
|
883 |
var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0); |
|
884 |
for (; k < len; k++) { |
|
885 |
if (k in t && t[k] === searchElement) { |
|
886 |
return k; |
|
887 |
} |
|
888 |
} |
|
889 |
|
|
890 |
return -1; |
|
891 |
}; |
|
892 |
} |
|
893 |
|
|
894 |
if (typeof Object.create !== "function") { |
|
895 |
Object.create = function (o) { |
|
896 |
F.prototype = o; |
|
897 |
return new F(); |
|
898 |
}; |
|
899 |
} |
|
900 |
|
|
901 |
if (typeof Object.keys !== "function") { |
|
902 |
Object.keys = function (o) { |
|
903 |
var a = [], k; |
|
904 |
for (k in o) { |
|
905 |
if (is_own(o, k)) { |
|
906 |
a.push(k); |
|
907 |
} |
|
908 |
} |
|
909 |
return a; |
|
910 |
}; |
|
911 |
} |
|
912 |
|
|
913 |
// Non standard methods |
|
914 |
|
|
915 |
function isAlpha(str) { |
|
916 |
return (str >= "a" && str <= "z\uffff") || |
|
917 |
(str >= "A" && str <= "Z\uffff"); |
|
918 |
} |
|
919 |
|
|
920 |
function isDigit(str) { |
|
921 |
return (str >= "0" && str <= "9"); |
|
922 |
} |
|
923 |
|
|
924 |
function isIdentifier(token, value) { |
|
925 |
if (!token) |
|
926 |
return false; |
|
927 |
|
|
928 |
if (!token.identifier || token.value !== value) |
|
929 |
return false; |
|
930 |
|
|
931 |
return true; |
|
932 |
} |
|
933 |
|
|
934 |
function supplant(str, data) { |
|
935 |
return str.replace(/\{([^{}]*)\}/g, function (a, b) { |
|
936 |
var r = data[b]; |
|
937 |
return typeof r === "string" || typeof r === "number" ? r : a; |
|
938 |
}); |
|
939 |
} |
|
940 |
|
|
941 |
function combine(t, o) { |
|
942 |
var n; |
|
943 |
for (n in o) { |
|
944 |
if (is_own(o, n) && !is_own(JSHINT.blacklist, n)) { |
|
945 |
t[n] = o[n]; |
|
946 |
} |
|
947 |
} |
|
948 |
} |
|
949 |
|
|
950 |
function updatePredefined() { |
|
951 |
Object.keys(JSHINT.blacklist).forEach(function (key) { |
|
952 |
delete predefined[key]; |
|
953 |
}); |
|
954 |
} |
|
955 |
|
|
956 |
function assume() { |
|
957 |
if (option.couch) { |
|
958 |
combine(predefined, couch); |
|
959 |
} |
|
960 |
|
|
961 |
if (option.rhino) { |
|
962 |
combine(predefined, rhino); |
|
963 |
} |
|
964 |
|
|
965 |
if (option.prototypejs) { |
|
966 |
combine(predefined, prototypejs); |
|
967 |
} |
|
968 |
|
|
969 |
if (option.node) { |
|
970 |
combine(predefined, node); |
|
971 |
option.globalstrict = true; |
|
972 |
} |
|
973 |
|
|
974 |
if (option.devel) { |
|
975 |
combine(predefined, devel); |
|
976 |
} |
|
977 |
|
|
978 |
if (option.dojo) { |
|
979 |
combine(predefined, dojo); |
|
980 |
} |
|
981 |
|
|
982 |
if (option.browser) { |
|
983 |
combine(predefined, browser); |
|
984 |
} |
|
985 |
|
|
986 |
if (option.nonstandard) { |
|
987 |
combine(predefined, nonstandard); |
|
988 |
} |
|
989 |
|
|
990 |
if (option.jquery) { |
|
991 |
combine(predefined, jquery); |
|
992 |
} |
|
993 |
|
|
994 |
if (option.mootools) { |
|
995 |
combine(predefined, mootools); |
|
996 |
} |
|
997 |
|
|
998 |
if (option.worker) { |
|
999 |
combine(predefined, worker); |
|
1000 |
} |
|
1001 |
|
|
1002 |
if (option.wsh) { |
|
1003 |
combine(predefined, wsh); |
|
1004 |
} |
|
1005 |
|
|
1006 |
if (option.esnext) { |
|
1007 |
useESNextSyntax(); |
|
1008 |
} |
|
1009 |
|
|
1010 |
if (option.globalstrict && option.strict !== false) { |
|
1011 |
option.strict = true; |
|
1012 |
} |
|
1013 |
|
|
1014 |
if (option.yui) { |
|
1015 |
combine(predefined, yui); |
|
1016 |
} |
|
1017 |
} |
|
1018 |
|
|
1019 |
|
|
1020 |
// Produce an error warning. |
|
1021 |
function quit(message, line, chr) { |
|
1022 |
var percentage = Math.floor((line / lines.length) * 100); |
|
1023 |
|
|
1024 |
throw { |
|
1025 |
name: "JSHintError", |
|
1026 |
line: line, |
|
1027 |
character: chr, |
|
1028 |
message: message + " (" + percentage + "% scanned).", |
|
1029 |
raw: message |
|
1030 |
}; |
|
1031 |
} |
|
1032 |
|
|
1033 |
function isundef(scope, m, t, a) { |
|
1034 |
return JSHINT.undefs.push([scope, m, t, a]); |
|
1035 |
} |
|
1036 |
|
|
1037 |
function warning(m, t, a, b, c, d) { |
|
1038 |
var ch, l, w; |
|
1039 |
t = t || nexttoken; |
|
1040 |
if (t.id === "(end)") { // `~ |
|
1041 |
t = token; |
|
1042 |
} |
|
1043 |
l = t.line || 0; |
|
1044 |
ch = t.from || 0; |
|
1045 |
w = { |
|
1046 |
id: "(error)", |
|
1047 |
raw: m, |
|
1048 |
evidence: lines[l - 1] || "", |
|
1049 |
line: l, |
|
1050 |
character: ch, |
|
1051 |
scope: JSHINT.scope, |
|
1052 |
a: a, |
|
1053 |
b: b, |
|
1054 |
c: c, |
|
1055 |
d: d |
|
1056 |
}; |
|
1057 |
w.reason = supplant(m, w); |
|
1058 |
JSHINT.errors.push(w); |
|
1059 |
if (option.passfail) { |
|
1060 |
quit("Stopping. ", l, ch); |
|
1061 |
} |
|
1062 |
warnings += 1; |
|
1063 |
if (warnings >= option.maxerr) { |
|
1064 |
quit("Too many errors.", l, ch); |
|
1065 |
} |
|
1066 |
return w; |
|
1067 |
} |
|
1068 |
|
|
1069 |
function warningAt(m, l, ch, a, b, c, d) { |
|
1070 |
return warning(m, { |
|
1071 |
line: l, |
|
1072 |
from: ch |
|
1073 |
}, a, b, c, d); |
|
1074 |
} |
|
1075 |
|
|
1076 |
function error(m, t, a, b, c, d) { |
|
1077 |
warning(m, t, a, b, c, d); |
|
1078 |
} |
|
1079 |
|
|
1080 |
function errorAt(m, l, ch, a, b, c, d) { |
|
1081 |
return error(m, { |
|
1082 |
line: l, |
|
1083 |
from: ch |
|
1084 |
}, a, b, c, d); |
|
1085 |
} |
|
1086 |
|
|
1087 |
// Tracking of "internal" scripts, like eval containing a static string |
|
1088 |
function addInternalSrc(elem, src) { |
|
1089 |
var i; |
|
1090 |
i = { |
|
1091 |
id: "(internal)", |
|
1092 |
elem: elem, |
|
1093 |
value: src |
|
1094 |
}; |
|
1095 |
JSHINT.internals.push(i); |
|
1096 |
return i; |
|
1097 |
} |
|
1098 |
|
|
1099 |
|
|
1100 |
// lexical analysis and token construction |
|
1101 |
|
|
1102 |
var lex = (function lex() { |
|
1103 |
var character, from, line, s; |
|
1104 |
|
|
1105 |
// Private lex methods |
|
1106 |
|
|
1107 |
function nextLine() { |
|
1108 |
var at, |
|
1109 |
match, |
|
1110 |
tw; // trailing whitespace check |
|
1111 |
|
|
1112 |
if (line >= lines.length) |
|
1113 |
return false; |
|
1114 |
|
|
1115 |
character = 1; |
|
1116 |
s = lines[line]; |
|
1117 |
line += 1; |
|
1118 |
|
|
1119 |
// If smarttabs option is used check for spaces followed by tabs only. |
|
1120 |
// Otherwise check for any occurence of mixed tabs and spaces. |
|
1121 |
// Tabs and one space followed by block comment is allowed. |
|
1122 |
if (option.smarttabs) { |
|
1123 |
// negative look-behind for "//" |
|
1124 |
match = s.match(/(\/\/)? \t/); |
|
1125 |
at = match && !match[1] ? 0 : -1; |
|
1126 |
} else { |
|
1127 |
at = s.search(/ \t|\t [^\*]/); |
|
1128 |
} |
|
1129 |
|
|
1130 |
if (at >= 0) |
|
1131 |
warningAt("Mixed spaces and tabs.", line, at + 1); |
|
1132 |
|
|
1133 |
s = s.replace(/\t/g, tab); |
|
1134 |
at = s.search(cx); |
|
1135 |
|
|
1136 |
if (at >= 0) |
|
1137 |
warningAt("Unsafe character.", line, at); |
|
1138 |
|
|
1139 |
if (option.maxlen && option.maxlen < s.length) |
|
1140 |
warningAt("Line too long.", line, s.length); |
|
1141 |
|
|
1142 |
// Check for trailing whitespaces |
|
1143 |
tw = option.trailing && s.match(/^(.*?)\s+$/); |
|
1144 |
if (tw && !/^\s+$/.test(s)) { |
|
1145 |
warningAt("Trailing whitespace.", line, tw[1].length + 1); |
|
1146 |
} |
|
1147 |
return true; |
|
1148 |
} |
|
1149 |
|
|
1150 |
// Produce a token object. The token inherits from a syntax symbol. |
|
1151 |
|
|
1152 |
function it(type, value) { |
|
1153 |
var i, t; |
|
1154 |
|
|
1155 |
function checkName(name) { |
|
1156 |
if (!option.proto && name === "__proto__") { |
|
1157 |
warningAt("The '{a}' property is deprecated.", line, from, name); |
|
1158 |
return; |
|
1159 |
} |
|
1160 |
|
|
1161 |
if (!option.iterator && name === "__iterator__") { |
|
1162 |
warningAt("'{a}' is only available in JavaScript 1.7.", line, from, name); |
|
1163 |
return; |
|
1164 |
} |
|
1165 |
|
|
1166 |
// Check for dangling underscores unless we're in Node |
|
1167 |
// environment and this identifier represents built-in |
|
1168 |
// Node globals with underscores. |
|
1169 |
|
|
1170 |
var hasDangling = /^(_+.*|.*_+)$/.test(name); |
|
1171 |
|
|
1172 |
if (option.nomen && hasDangling && name !== "_") { |
|
1173 |
if (option.node && token.id !== "." && /^(__dirname|__filename)$/.test(name)) |
|
1174 |
return; |
|
1175 |
|
|
1176 |
warningAt("Unexpected {a} in '{b}'.", line, from, "dangling '_'", name); |
|
1177 |
return; |
|
1178 |
} |
|
1179 |
|
|
1180 |
// Check for non-camelcase names. Names like MY_VAR and |
|
1181 |
// _myVar are okay though. |
|
1182 |
|
|
1183 |
if (option.camelcase) { |
|
1184 |
if (name.replace(/^_+/, "").indexOf("_") > -1 && !name.match(/^[A-Z0-9_]*$/)) { |
|
1185 |
warningAt("Identifier '{a}' is not in camel case.", line, from, value); |
|
1186 |
} |
|
1187 |
} |
|
1188 |
} |
|
1189 |
|
|
1190 |
if (type === "(color)" || type === "(range)") { |
|
1191 |
t = {type: type}; |
|
1192 |
} else if (type === "(punctuator)" || |
|
1193 |
(type === "(identifier)" && is_own(syntax, value))) { |
|
1194 |
t = syntax[value] || syntax["(error)"]; |
|
1195 |
} else { |
|
1196 |
t = syntax[type]; |
|
1197 |
} |
|
1198 |
|
|
1199 |
t = Object.create(t); |
|
1200 |
|
|
1201 |
if (type === "(string)" || type === "(range)") { |
|
1202 |
if (!option.scripturl && jx.test(value)) { |
|
1203 |
warningAt("Script URL.", line, from); |
|
1204 |
} |
|
1205 |
} |
|
1206 |
|
|
1207 |
if (type === "(identifier)") { |
|
1208 |
t.identifier = true; |
|
1209 |
checkName(value); |
|
1210 |
} |
|
1211 |
|
|
1212 |
t.value = value; |
|
1213 |
t.line = line; |
|
1214 |
t.character = character; |
|
1215 |
t.from = from; |
|
1216 |
i = t.id; |
|
1217 |
if (i !== "(endline)") { |
|
1218 |
prereg = i && |
|
1219 |
(("(,=:[!&|?{};".indexOf(i.charAt(i.length - 1)) >= 0) || |
|
1220 |
i === "return" || |
|
1221 |
i === "case"); |
|
1222 |
} |
|
1223 |
return t; |
|
1224 |
} |
|
1225 |
|
|
1226 |
// Public lex methods |
|
1227 |
return { |
|
1228 |
init: function (source) { |
|
1229 |
if (typeof source === "string") { |
|
1230 |
lines = source |
|
1231 |
.replace(/\r\n/g, "\n") |
|
1232 |
.replace(/\r/g, "\n") |
|
1233 |
.split("\n"); |
|
1234 |
} else { |
|
1235 |
lines = source; |
|
1236 |
} |
|
1237 |
|
|
1238 |
// If the first line is a shebang (#!), make it a blank and move on. |
|
1239 |
// Shebangs are used by Node scripts. |
|
1240 |
if (lines[0] && lines[0].substr(0, 2) === "#!") |
|
1241 |
lines[0] = ""; |
|
1242 |
|
|
1243 |
line = 0; |
|
1244 |
nextLine(); |
|
1245 |
from = 1; |
|
1246 |
}, |
|
1247 |
|
|
1248 |
range: function (begin, end) { |
|
1249 |
var c, value = ""; |
|
1250 |
from = character; |
|
1251 |
if (s.charAt(0) !== begin) { |
|
1252 |
errorAt("Expected '{a}' and instead saw '{b}'.", |
|
1253 |
line, character, begin, s.charAt(0)); |
|
1254 |
} |
|
1255 |
for (;;) { |
|
1256 |
s = s.slice(1); |
|
1257 |
character += 1; |
|
1258 |
c = s.charAt(0); |
|
1259 |
switch (c) { |
|
1260 |
case "": |
|
1261 |
errorAt("Missing '{a}'.", line, character, c); |
|
1262 |
break; |
|
1263 |
case end: |
|
1264 |
s = s.slice(1); |
|
1265 |
character += 1; |
|
1266 |
return it("(range)", value); |
|
1267 |
case "\\": |
|
1268 |
warningAt("Unexpected '{a}'.", line, character, c); |
|
1269 |
} |
|
1270 |
value += c; |
|
1271 |
} |
|
1272 |
|
|
1273 |
}, |
|
1274 |
|
|
1275 |
|
|
1276 |
// token -- this is called by advance to get the next token |
|
1277 |
token: function () { |
|
1278 |
var b, c, captures, d, depth, high, i, l, low, q, t, isLiteral, isInRange, n; |
|
1279 |
|
|
1280 |
function match(x) { |
|
1281 |
var r = x.exec(s), r1; |
|
1282 |
|
|
1283 |
if (r) { |
|
1284 |
l = r[0].length; |
|
1285 |
r1 = r[1]; |
|
1286 |
c = r1.charAt(0); |
|
1287 |
s = s.substr(l); |
|
1288 |
from = character + l - r1.length; |
|
1289 |
character += l; |
|
1290 |
return r1; |
|
1291 |
} |
|
1292 |
} |
|
1293 |
|
|
1294 |
function string(x) { |
|
1295 |
var c, j, r = "", allowNewLine = false; |
|
1296 |
|
|
1297 |
if (jsonmode && x !== "\"") { |
|
1298 |
warningAt("Strings must use doublequote.", |
|
1299 |
line, character); |
|
1300 |
} |
|
1301 |
|
|
1302 |
if (option.quotmark) { |
|
1303 |
if (option.quotmark === "single" && x !== "'") { |
|
1304 |
warningAt("Strings must use singlequote.", |
|
1305 |
line, character); |
|
1306 |
} else if (option.quotmark === "double" && x !== "\"") { |
|
1307 |
warningAt("Strings must use doublequote.", |
|
1308 |
line, character); |
|
1309 |
} else if (option.quotmark === true) { |
|
1310 |
quotmark = quotmark || x; |
|
1311 |
if (quotmark !== x) { |
|
1312 |
warningAt("Mixed double and single quotes.", |
|
1313 |
line, character); |
|
1314 |
} |
|
1315 |
} |
|
1316 |
} |
|
1317 |
|
|
1318 |
function esc(n) { |
|
1319 |
var i = parseInt(s.substr(j + 1, n), 16); |
|
1320 |
j += n; |
|
1321 |
if (i >= 32 && i <= 126 && |
|
1322 |
i !== 34 && i !== 92 && i !== 39) { |
|
1323 |
warningAt("Unnecessary escapement.", line, character); |
|
1324 |
} |
|
1325 |
character += n; |
|
1326 |
c = String.fromCharCode(i); |
|
1327 |
} |
|
1328 |
|
|
1329 |
j = 0; |
|
1330 |
|
|
1331 |
unclosedString: |
|
1332 |
for (;;) { |
|
1333 |
while (j >= s.length) { |
|
1334 |
j = 0; |
|
1335 |
|
|
1336 |
var cl = line, cf = from; |
|
1337 |
if (!nextLine()) { |
|
1338 |
errorAt("Unclosed string.", cl, cf); |
|
1339 |
break unclosedString; |
|
1340 |
} |
|
1341 |
|
|
1342 |
if (allowNewLine) { |
|
1343 |
allowNewLine = false; |
|
1344 |
} else { |
|
1345 |
warningAt("Unclosed string.", cl, cf); |
|
1346 |
} |
|
1347 |
} |
|
1348 |
|
|
1349 |
c = s.charAt(j); |
|
1350 |
if (c === x) { |
|
1351 |
character += 1; |
|
1352 |
s = s.substr(j + 1); |
|
1353 |
return it("(string)", r, x); |
|
1354 |
} |
|
1355 |
|
|
1356 |
if (c < " ") { |
|
1357 |
if (c === "\n" || c === "\r") { |
|
1358 |
break; |
|
1359 |
} |
|
1360 |
warningAt("Control character in string: {a}.", |
|
1361 |
line, character + j, s.slice(0, j)); |
|
1362 |
} else if (c === "\\") { |
|
1363 |
j += 1; |
|
1364 |
character += 1; |
|
1365 |
c = s.charAt(j); |
|
1366 |
n = s.charAt(j + 1); |
|
1367 |
switch (c) { |
|
1368 |
case "\\": |
|
1369 |
case "\"": |
|
1370 |
case "/": |
|
1371 |
break; |
|
1372 |
case "\'": |
|
1373 |
if (jsonmode) { |
|
1374 |
warningAt("Avoid \\'.", line, character); |
|
1375 |
} |
|
1376 |
break; |
|
1377 |
case "b": |
|
1378 |
c = "\b"; |
|
1379 |
break; |
|
1380 |
case "f": |
|
1381 |
c = "\f"; |
|
1382 |
break; |
|
1383 |
case "n": |
|
1384 |
c = "\n"; |
|
1385 |
break; |
|
1386 |
case "r": |
|
1387 |
c = "\r"; |
|
1388 |
break; |
|
1389 |
case "t": |
|
1390 |
c = "\t"; |
|
1391 |
break; |
|
1392 |
case "0": |
|
1393 |
c = "\0"; |
|
1394 |
// Octal literals fail in strict mode |
|
1395 |
// check if the number is between 00 and 07 |
|
1396 |
// where 'n' is the token next to 'c' |
|
1397 |
if (n >= 0 && n <= 7 && directive["use strict"]) { |
|
1398 |
warningAt( |
|
1399 |
"Octal literals are not allowed in strict mode.", |
|
1400 |
line, character); |
|
1401 |
} |
|
1402 |
break; |
|
1403 |
case "u": |
|
1404 |
esc(4); |
|
1405 |
break; |
|
1406 |
case "v": |
|
1407 |
if (jsonmode) { |
|
1408 |
warningAt("Avoid \\v.", line, character); |
|
1409 |
} |
|
1410 |
c = "\v"; |
|
1411 |
break; |
|
1412 |
case "x": |
|
1413 |
if (jsonmode) { |
|
1414 |
warningAt("Avoid \\x-.", line, character); |
|
1415 |
} |
|
1416 |
esc(2); |
|
1417 |
break; |
|
1418 |
case "": |
|
1419 |
// last character is escape character |
|
1420 |
// always allow new line if escaped, but show |
|
1421 |
// warning if option is not set |
|
1422 |
allowNewLine = true; |
|
1423 |
if (option.multistr) { |
|
1424 |
if (jsonmode) { |
|
1425 |
warningAt("Avoid EOL escapement.", line, character); |
|
1426 |
} |
|
1427 |
c = ""; |
|
1428 |
character -= 1; |
|
1429 |
break; |
|
1430 |
} |
|
1431 |
warningAt("Bad escapement of EOL. Use option multistr if needed.", |
|
1432 |
line, character); |
|
1433 |
break; |
|
1434 |
case "!": |
|
1435 |
if (s.charAt(j - 2) === "<") |
|
1436 |
break; |
|
1437 |
/*falls through*/ |
|
1438 |
default: |
|
1439 |
warningAt("Bad escapement.", line, character); |
|
1440 |
} |
|
1441 |
} |
|
1442 |
r += c; |
|
1443 |
character += 1; |
|
1444 |
j += 1; |
|
1445 |
} |
|
1446 |
} |
|
1447 |
|
|
1448 |
for (;;) { |
|
1449 |
if (!s) { |
|
1450 |
return it(nextLine() ? "(endline)" : "(end)", ""); |
|
1451 |
} |
|
1452 |
|
|
1453 |
t = match(tx); |
|
1454 |
|
|
1455 |
if (!t) { |
|
1456 |
t = ""; |
|
1457 |
c = ""; |
|
1458 |
while (s && s < "!") { |
|
1459 |
s = s.substr(1); |
|
1460 |
} |
|
1461 |
if (s) { |
|
1462 |
errorAt("Unexpected '{a}'.", line, character, s.substr(0, 1)); |
|
1463 |
s = ""; |
|
1464 |
} |
|
1465 |
} else { |
|
1466 |
|
|
1467 |
// identifier |
|
1468 |
|
|
1469 |
if (isAlpha(c) || c === "_" || c === "$") { |
|
1470 |
return it("(identifier)", t); |
|
1471 |
} |
|
1472 |
|
|
1473 |
// number |
|
1474 |
|
|
1475 |
if (isDigit(c)) { |
|
1476 |
if (!isFinite(Number(t))) { |
|
1477 |
warningAt("Bad number '{a}'.", |
|
1478 |
line, character, t); |
|
1479 |
} |
|
1480 |
if (isAlpha(s.substr(0, 1))) { |
|
1481 |
warningAt("Missing space after '{a}'.", |
|
1482 |
line, character, t); |
|
1483 |
} |
|
1484 |
if (c === "0") { |
|
1485 |
d = t.substr(1, 1); |
|
1486 |
if (isDigit(d)) { |
|
1487 |
if (token.id !== ".") { |
|
1488 |
warningAt("Don't use extra leading zeros '{a}'.", |
|
1489 |
line, character, t); |
|
1490 |
} |
|
1491 |
} else if (jsonmode && (d === "x" || d === "X")) { |
|
1492 |
warningAt("Avoid 0x-. '{a}'.", |
|
1493 |
line, character, t); |
|
1494 |
} |
|
1495 |
} |
|
1496 |
if (t.substr(t.length - 1) === ".") { |
|
1497 |
warningAt( |
|
1498 |
"A trailing decimal point can be confused with a dot '{a}'.", line, character, t); |
|
1499 |
} |
|
1500 |
return it("(number)", t); |
|
1501 |
} |
|
1502 |
switch (t) { |
|
1503 |
|
|
1504 |
// string |
|
1505 |
|
|
1506 |
case "\"": |
|
1507 |
case "'": |
|
1508 |
return string(t); |
|
1509 |
|
|
1510 |
// // comment |
|
1511 |
|
|
1512 |
case "//": |
|
1513 |
s = ""; |
|
1514 |
token.comment = true; |
|
1515 |
break; |
|
1516 |
|
|
1517 |
// /* comment |
|
1518 |
|
|
1519 |
case "/*": |
|
1520 |
for (;;) { |
|
1521 |
i = s.search(lx); |
|
1522 |
if (i >= 0) { |
|
1523 |
break; |
|
1524 |
} |
|
1525 |
if (!nextLine()) { |
|
1526 |
errorAt("Unclosed comment.", line, character); |
|
1527 |
} |
|
1528 |
} |
|
1529 |
s = s.substr(i + 2); |
|
1530 |
token.comment = true; |
|
1531 |
break; |
|
1532 |
|
|
1533 |
// /*members /*jshint /*global |
|
1534 |
|
|
1535 |
case "/*members": |
|
1536 |
case "/*member": |
|
1537 |
case "/*jshint": |
|
1538 |
case "/*jslint": |
|
1539 |
case "/*global": |
|
1540 |
case "*/": |
|
1541 |
return { |
|
1542 |
value: t, |
|
1543 |
type: "special", |
|
1544 |
line: line, |
|
1545 |
character: character, |
|
1546 |
from: from |
|
1547 |
}; |
|
1548 |
|
|
1549 |
case "": |
|
1550 |
break; |
|
1551 |
// / |
|
1552 |
case "/": |
|
1553 |
if (s.charAt(0) === "=") { |
|
1554 |
errorAt("A regular expression literal can be confused with '/='.", |
|
1555 |
line, from); |
|
1556 |
} |
|
1557 |
|
|
1558 |
if (prereg) { |
|
1559 |
depth = 0; |
|
1560 |
captures = 0; |
|
1561 |
l = 0; |
|
1562 |
for (;;) { |
|
1563 |
b = true; |
|
1564 |
c = s.charAt(l); |
|
1565 |
l += 1; |
|
1566 |
switch (c) { |
|
1567 |
case "": |
|
1568 |
errorAt("Unclosed regular expression.", line, from); |
|
1569 |
return quit("Stopping.", line, from); |
|
1570 |
case "/": |
|
1571 |
if (depth > 0) { |
|
1572 |
warningAt("{a} unterminated regular expression " + |
|
1573 |
"group(s).", line, from + l, depth); |
|
1574 |
} |
|
1575 |
c = s.substr(0, l - 1); |
|
1576 |
q = { |
|
1577 |
g: true, |
|
1578 |
i: true, |
|
1579 |
m: true |
|
1580 |
}; |
|
1581 |
while (q[s.charAt(l)] === true) { |
|
1582 |
q[s.charAt(l)] = false; |
|
1583 |
l += 1; |
|
1584 |
} |
|
1585 |
character += l; |
|
1586 |
s = s.substr(l); |
|
1587 |
q = s.charAt(0); |
|
1588 |
if (q === "/" || q === "*") { |
|
1589 |
errorAt("Confusing regular expression.", |
|
1590 |
line, from); |
|
1591 |
} |
|
1592 |
return it("(regexp)", c); |
|
1593 |
case "\\": |
|
1594 |
c = s.charAt(l); |
|
1595 |
if (c < " ") { |
|
1596 |
warningAt( |
|
1597 |
"Unexpected control character in regular expression.", line, from + l); |
|
1598 |
} else if (c === "<") { |
|
1599 |
warningAt( |
|
1600 |
"Unexpected escaped character '{a}' in regular expression.", line, from + l, c); |
|
1601 |
} |
|
1602 |
l += 1; |
|
1603 |
break; |
|
1604 |
case "(": |
|
1605 |
depth += 1; |
|
1606 |
b = false; |
|
1607 |
if (s.charAt(l) === "?") { |
|
1608 |
l += 1; |
|
1609 |
switch (s.charAt(l)) { |
|
1610 |
case ":": |
|
1611 |
case "=": |
|
1612 |
case "!": |
|
1613 |
l += 1; |
|
1614 |
break; |
|
1615 |
default: |
|
1616 |
warningAt( |
|
1617 |
"Expected '{a}' and instead saw '{b}'.", line, from + l, ":", s.charAt(l)); |
|
1618 |
} |
|
1619 |
} else { |
|
1620 |
captures += 1; |
|
1621 |
} |
|
1622 |
break; |
|
1623 |
case "|": |
|
1624 |
b = false; |
|
1625 |
break; |
|
1626 |
case ")": |
|
1627 |
if (depth === 0) { |
|
1628 |
warningAt("Unescaped '{a}'.", |
|
1629 |
line, from + l, ")"); |
|
1630 |
} else { |
|
1631 |
depth -= 1; |
|
1632 |
} |
|
1633 |
break; |
|
1634 |
case " ": |
|
1635 |
q = 1; |
|
1636 |
while (s.charAt(l) === " ") { |
|
1637 |
l += 1; |
|
1638 |
q += 1; |
|
1639 |
} |
|
1640 |
if (q > 1) { |
|
1641 |
warningAt( |
|
1642 |
"Spaces are hard to count. Use {{a}}.", line, from + l, q); |
|
1643 |
} |
|
1644 |
break; |
|
1645 |
case "[": |
|
1646 |
c = s.charAt(l); |
|
1647 |
if (c === "^") { |
|
1648 |
l += 1; |
|
1649 |
if (s.charAt(l) === "]") { |
|
1650 |
errorAt("Unescaped '{a}'.", |
|
1651 |
line, from + l, "^"); |
|
1652 |
} |
|
1653 |
} |
|
1654 |
if (c === "]") { |
|
1655 |
warningAt("Empty class.", line, |
|
1656 |
from + l - 1); |
|
1657 |
} |
|
1658 |
isLiteral = false; |
|
1659 |
isInRange = false; |
|
1660 |
klass: |
|
1661 |
do { |
|
1662 |
c = s.charAt(l); |
|
1663 |
l += 1; |
|
1664 |
switch (c) { |
|
1665 |
case "[": |
|
1666 |
case "^": |
|
1667 |
warningAt("Unescaped '{a}'.", |
|
1668 |
line, from + l, c); |
|
1669 |
if (isInRange) { |
|
1670 |
isInRange = false; |
|
1671 |
} else { |
|
1672 |
isLiteral = true; |
|
1673 |
} |
|
1674 |
break; |
|
1675 |
case "-": |
|
1676 |
if (isLiteral && !isInRange) { |
|
1677 |
isLiteral = false; |
|
1678 |
isInRange = true; |
|
1679 |
} else if (isInRange) { |
|
1680 |
isInRange = false; |
|
1681 |
} else if (s.charAt(l) === "]") { |
|
1682 |
isInRange = true; |
|
1683 |
} else { |
|
1684 |
if (option.regexdash !== (l === 2 || (l === 3 && |
|
1685 |
s.charAt(1) === "^"))) { |
|
1686 |
warningAt("Unescaped '{a}'.", |
|
1687 |
line, from + l - 1, "-"); |
|
1688 |
} |
|
1689 |
isLiteral = true; |
|
1690 |
} |
|
1691 |
break; |
|
1692 |
case "]": |
|
1693 |
if (isInRange && !option.regexdash) { |
|
1694 |
warningAt("Unescaped '{a}'.", |
|
1695 |
line, from + l - 1, "-"); |
|
1696 |
} |
|
1697 |
break klass; |
|
1698 |
case "\\": |
|
1699 |
c = s.charAt(l); |
|
1700 |
if (c < " ") { |
|
1701 |
warningAt( |
|
1702 |
"Unexpected control character in regular expression.", line, from + l); |
|
1703 |
} else if (c === "<") { |
|
1704 |
warningAt( |
|
1705 |
"Unexpected escaped character '{a}' in regular expression.", line, from + l, c); |
|
1706 |
} |
|
1707 |
l += 1; |
|
1708 |
|
|
1709 |
// \w, \s and \d are never part of a character range |
|
1710 |
if (/[wsd]/i.test(c)) { |
|
1711 |
if (isInRange) { |
|
1712 |
warningAt("Unescaped '{a}'.", |
|
1713 |
line, from + l, "-"); |
|
1714 |
isInRange = false; |
|
1715 |
} |
|
1716 |
isLiteral = false; |
|
1717 |
} else if (isInRange) { |
|
1718 |
isInRange = false; |
|
1719 |
} else { |
|
1720 |
isLiteral = true; |
|
1721 |
} |
|
1722 |
break; |
|
1723 |
case "/": |
|
1724 |
warningAt("Unescaped '{a}'.", |
|
1725 |
line, from + l - 1, "/"); |
|
1726 |
|
|
1727 |
if (isInRange) { |
|
1728 |
isInRange = false; |
|
1729 |
} else { |
|
1730 |
isLiteral = true; |
|
1731 |
} |
|
1732 |
break; |
|
1733 |
case "<": |
|
1734 |
if (isInRange) { |
|
1735 |
isInRange = false; |
|
1736 |
} else { |
|
1737 |
isLiteral = true; |
|
1738 |
} |
|
1739 |
break; |
|
1740 |
default: |
|
1741 |
if (isInRange) { |
|
1742 |
isInRange = false; |
|
1743 |
} else { |
|
1744 |
isLiteral = true; |
|
1745 |
} |
|
1746 |
} |
|
1747 |
} while (c); |
|
1748 |
break; |
|
1749 |
case ".": |
|
1750 |
if (option.regexp) { |
|
1751 |
warningAt("Insecure '{a}'.", line, |
|
1752 |
from + l, c); |
|
1753 |
} |
|
1754 |
break; |
|
1755 |
case "]": |
|
1756 |
case "?": |
|
1757 |
case "{": |
|
1758 |
case "}": |
|
1759 |
case "+": |
|
1760 |
case "*": |
|
1761 |
warningAt("Unescaped '{a}'.", line, |
|
1762 |
from + l, c); |
|
1763 |
} |
|
1764 |
if (b) { |
|
1765 |
switch (s.charAt(l)) { |
|
1766 |
case "?": |
|
1767 |
case "+": |
|
1768 |
case "*": |
|
1769 |
l += 1; |
|
1770 |
if (s.charAt(l) === "?") { |
|
1771 |
l += 1; |
|
1772 |
} |
|
1773 |
break; |
|
1774 |
case "{": |
|
1775 |
l += 1; |
|
1776 |
c = s.charAt(l); |
|
1777 |
if (c < "0" || c > "9") { |
|
1778 |
warningAt( |
|
1779 |
"Expected a number and instead saw '{a}'.", line, from + l, c); |
|
1780 |
break; // No reason to continue checking numbers. |
|
1781 |
} |
|
1782 |
l += 1; |
|
1783 |
low = +c; |
|
1784 |
for (;;) { |
|
1785 |
c = s.charAt(l); |
|
1786 |
if (c < "0" || c > "9") { |
|
1787 |
break; |
|
1788 |
} |
|
1789 |
l += 1; |
|
1790 |
low = +c + (low * 10); |
|
1791 |
} |
|
1792 |
high = low; |
|
1793 |
if (c === ",") { |
|
1794 |
l += 1; |
|
1795 |
high = Infinity; |
|
1796 |
c = s.charAt(l); |
|
1797 |
if (c >= "0" && c <= "9") { |
|
1798 |
l += 1; |
|
1799 |
high = +c; |
|
1800 |
for (;;) { |
|
1801 |
c = s.charAt(l); |
|
1802 |
if (c < "0" || c > "9") { |
|
1803 |
break; |
|
1804 |
} |
|
1805 |
l += 1; |
|
1806 |
high = +c + (high * 10); |
|
1807 |
} |
|
1808 |
} |
|
1809 |
} |
|
1810 |
if (s.charAt(l) !== "}") { |
|
1811 |
warningAt( |
|
1812 |
"Expected '{a}' and instead saw '{b}'.", line, from + l, "}", c); |
|
1813 |
} else { |
|
1814 |
l += 1; |
|
1815 |
} |
|
1816 |
if (s.charAt(l) === "?") { |
|
1817 |
l += 1; |
|
1818 |
} |
|
1819 |
if (low > high) { |
|
1820 |
warningAt( |
|
1821 |
"'{a}' should not be greater than '{b}'.", line, from + l, low, high); |
|
1822 |
} |
|
1823 |
} |
|
1824 |
} |
|
1825 |
} |
|
1826 |
c = s.substr(0, l - 1); |
|
1827 |
character += l; |
|
1828 |
s = s.substr(l); |
|
1829 |
return it("(regexp)", c); |
|
1830 |
} |
|
1831 |
return it("(punctuator)", t); |
|
1832 |
|
|
1833 |
// punctuator |
|
1834 |
|
|
1835 |
case "#": |
|
1836 |
return it("(punctuator)", t); |
|
1837 |
default: |
|
1838 |
return it("(punctuator)", t); |
|
1839 |
} |
|
1840 |
} |
|
1841 |
} |
|
1842 |
} |
|
1843 |
}; |
|
1844 |
}()); |
|
1845 |
|
|
1846 |
|
|
1847 |
function addlabel(t, type, token) { |
|
1848 |
if (t === "hasOwnProperty") { |
|
1849 |
warning("'hasOwnProperty' is a really bad name."); |
|
1850 |
} |
|
1851 |
|
|
1852 |
// Define t in the current function in the current scope. |
|
1853 |
if (type === "exception") { |
|
1854 |
if (is_own(funct["(context)"], t)) { |
|
1855 |
if (funct[t] !== true && !option.node) { |
|
1856 |
warning("Value of '{a}' may be overwritten in IE.", nexttoken, t); |
|
1857 |
} |
|
1858 |
} |
|
1859 |
} |
|
1860 |
|
|
1861 |
if (is_own(funct, t) && !funct["(global)"]) { |
|
1862 |
if (funct[t] === true) { |
|
1863 |
if (option.latedef) |
|
1864 |
warning("'{a}' was used before it was defined.", nexttoken, t); |
|
1865 |
} else { |
|
1866 |
if (!option.shadow && type !== "exception") { |
|
1867 |
warning("'{a}' is already defined.", nexttoken, t); |
|
1868 |
} |
|
1869 |
} |
|
1870 |
} |
|
1871 |
|
|
1872 |
funct[t] = type; |
|
1873 |
|
|
1874 |
if (token) { |
|
1875 |
funct["(tokens)"][t] = token; |
|
1876 |
} |
|
1877 |
|
|
1878 |
if (funct["(global)"]) { |
|
1879 |
global[t] = funct; |
|
1880 |
if (is_own(implied, t)) { |
|
1881 |
if (option.latedef) |
|
1882 |
warning("'{a}' was used before it was defined.", nexttoken, t); |
|
1883 |
delete implied[t]; |
|
1884 |
} |
|
1885 |
} else { |
|
1886 |
scope[t] = funct; |
|
1887 |
} |
|
1888 |
} |
|
1889 |
|
|
1890 |
|
|
1891 |
function doOption() { |
|
1892 |
var nt = nexttoken; |
|
1893 |
var o = nt.value; |
|
1894 |
var quotmarkValue = option.quotmark; |
|
1895 |
var predef = {}; |
|
1896 |
var b, obj, filter, t, tn, v, minus; |
|
1897 |
|
|
1898 |
switch (o) { |
|
1899 |
case "*/": |
|
1900 |
error("Unbegun comment."); |
|
1901 |
break; |
|
1902 |
case "/*members": |
|
1903 |
case "/*member": |
|
1904 |
o = "/*members"; |
|
1905 |
if (!membersOnly) { |
|
1906 |
membersOnly = {}; |
|
1907 |
} |
|
1908 |
obj = membersOnly; |
|
1909 |
option.quotmark = false; |
|
1910 |
break; |
|
1911 |
case "/*jshint": |
|
1912 |
case "/*jslint": |
|
1913 |
obj = option; |
|
1914 |
filter = boolOptions; |
|
1915 |
break; |
|
1916 |
case "/*global": |
|
1917 |
obj = predef; |
|
1918 |
break; |
|
1919 |
default: |
|
1920 |
error("What?"); |
|
1921 |
} |
|
1922 |
|
|
1923 |
t = lex.token(); |
|
1924 |
|
|
1925 |
loop: |
|
1926 |
for (;;) { |
|
1927 |
minus = false; |
|
1928 |
for (;;) { |
|
1929 |
if (t.type === "special" && t.value === "*/") { |
|
1930 |
break loop; |
|
1931 |
} |
|
1932 |
if (t.id !== "(endline)" && t.id !== ",") { |
|
1933 |
break; |
|
1934 |
} |
|
1935 |
t = lex.token(); |
|
1936 |
} |
|
1937 |
|
|
1938 |
if (o === "/*global" && t.value === "-") { |
|
1939 |
minus = true; |
|
1940 |
t = lex.token(); |
|
1941 |
} |
|
1942 |
|
|
1943 |
if (t.type !== "(string)" && t.type !== "(identifier)" && o !== "/*members") { |
|
1944 |
error("Bad option.", t); |
|
1945 |
} |
|
1946 |
|
|
1947 |
v = lex.token(); |
|
1948 |
if (v.id === ":") { |
|
1949 |
v = lex.token(); |
|
1950 |
|
|
1951 |
if (obj === membersOnly) { |
|
1952 |
error("Expected '{a}' and instead saw '{b}'.", t, "*/", ":"); |
|
1953 |
} |
|
1954 |
|
|
1955 |
if (o === "/*jshint") { |
|
1956 |
checkOption(t.value, t); |
|
1957 |
} |
|
1958 |
|
|
1959 |
var numericVals = [ |
|
1960 |
"maxstatements", |
|
1961 |
"maxparams", |
|
1962 |
"maxdepth", |
|
1963 |
"maxcomplexity", |
|
1964 |
"maxerr", |
|
1965 |
"maxlen", |
|
1966 |
"indent" |
|
1967 |
]; |
|
1968 |
|
|
1969 |
if (numericVals.indexOf(t.value) > -1 && (o === "/*jshint" || o === "/*jslint")) { |
|
1970 |
b = +v.value; |
|
1971 |
|
|
1972 |
if (typeof b !== "number" || !isFinite(b) || b <= 0 || Math.floor(b) !== b) { |
|
1973 |
error("Expected a small integer and instead saw '{a}'.", v, v.value); |
|
1974 |
} |
|
1975 |
|
|
1976 |
if (t.value === "indent") |
|
1977 |
obj.white = true; |
|
1978 |
|
|
1979 |
obj[t.value] = b; |
|
1980 |
} else if (t.value === "validthis") { |
|
1981 |
if (funct["(global)"]) { |
|
1982 |
error("Option 'validthis' can't be used in a global scope."); |
|
1983 |
} else { |
|
1984 |
if (v.value === "true" || v.value === "false") |
|
1985 |
obj[t.value] = v.value === "true"; |
|
1986 |
else |
|
1987 |
error("Bad option value.", v); |
|
1988 |
} |
|
1989 |
} else if (t.value === "quotmark" && (o === "/*jshint")) { |
|
1990 |
switch (v.value) { |
|
1991 |
case "true": |
|
1992 |
obj.quotmark = true; |
|
1993 |
break; |
|
1994 |
case "false": |
|
1995 |
obj.quotmark = false; |
|
1996 |
break; |
|
1997 |
case "double": |
|
1998 |
case "single": |
|
1999 |
obj.quotmark = v.value; |
|
2000 |
break; |
|
2001 |
default: |
|
2002 |
error("Bad option value.", v); |
|
2003 |
} |
|
2004 |
} else if (v.value === "true" || v.value === "false") { |
|
2005 |
if (o === "/*jslint") { |
|
2006 |
tn = renamedOptions[t.value] || t.value; |
|
2007 |
obj[tn] = v.value === "true"; |
|
2008 |
if (invertedOptions[tn] !== undefined) { |
|
2009 |
obj[tn] = !obj[tn]; |
|
2010 |
} |
|
2011 |
} else { |
|
2012 |
obj[t.value] = v.value === "true"; |
|
2013 |
} |
|
2014 |
|
|
2015 |
if (t.value === "newcap") |
|
2016 |
obj["(explicitNewcap)"] = true; |
|
2017 |
} else { |
|
2018 |
error("Bad option value.", v); |
|
2019 |
} |
|
2020 |
t = lex.token(); |
|
2021 |
} else { |
|
2022 |
if (o === "/*jshint" || o === "/*jslint") { |
|
2023 |
error("Missing option value.", t); |
|
2024 |
} |
|
2025 |
|
|
2026 |
obj[t.value] = false; |
|
2027 |
|
|
2028 |
if (o === "/*global" && minus === true) { |
|
2029 |
JSHINT.blacklist[t.value] = t.value; |
|
2030 |
updatePredefined(); |
|
2031 |
} |
|
2032 |
|
|
2033 |
t = v; |
|
2034 |
} |
|
2035 |
} |
|
2036 |
|
|
2037 |
if (o === "/*members") { |
|
2038 |
option.quotmark = quotmarkValue; |
|
2039 |
} |
|
2040 |
|
|
2041 |
combine(predefined, predef); |
|
2042 |
|
|
2043 |
for (var key in predef) { |
|
2044 |
if (is_own(predef, key)) { |
|
2045 |
declared[key] = nt; |
|
2046 |
} |
|
2047 |
} |
|
2048 |
|
|
2049 |
if (filter) { |
|
2050 |
assume(); |
|
2051 |
} |
|
2052 |
} |
|
2053 |
|
|
2054 |
|
|
2055 |
// We need a peek function. If it has an argument, it peeks that much farther |
|
2056 |
// ahead. It is used to distinguish |
|
2057 |
// for ( var i in ... |
|
2058 |
// from |
|
2059 |
// for ( var i = ... |
|
2060 |
|
|
2061 |
function peek(p) { |
|
2062 |
var i = p || 0, j = 0, t; |
|
2063 |
|
|
2064 |
while (j <= i) { |
|
2065 |
t = lookahead[j]; |
|
2066 |
if (!t) { |
|
2067 |
t = lookahead[j] = lex.token(); |
|
2068 |
} |
|
2069 |
j += 1; |
|
2070 |
} |
|
2071 |
return t; |
|
2072 |
} |
|
2073 |
|
|
2074 |
|
|
2075 |
|
|
2076 |
// Produce the next token. It looks for programming errors. |
|
2077 |
|
|
2078 |
function advance(id, t) { |
|
2079 |
switch (token.id) { |
|
2080 |
case "(number)": |
|
2081 |
if (nexttoken.id === ".") { |
|
2082 |
warning("A dot following a number can be confused with a decimal point.", token); |
|
2083 |
} |
|
2084 |
break; |
|
2085 |
case "-": |
|
2086 |
if (nexttoken.id === "-" || nexttoken.id === "--") { |
|
2087 |
warning("Confusing minusses."); |
|
2088 |
} |
|
2089 |
break; |
|
2090 |
case "+": |
|
2091 |
if (nexttoken.id === "+" || nexttoken.id === "++") { |
|
2092 |
warning("Confusing plusses."); |
|
2093 |
} |
|
2094 |
break; |
|
2095 |
} |
|
2096 |
|
|
2097 |
if (token.type === "(string)" || token.identifier) { |
|
2098 |
anonname = token.value; |
|
2099 |
} |
|
2100 |
|
|
2101 |
if (id && nexttoken.id !== id) { |
|
2102 |
if (t) { |
|
2103 |
if (nexttoken.id === "(end)") { |
|
2104 |
warning("Unmatched '{a}'.", t, t.id); |
|
2105 |
} else { |
|
2106 |
warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.", |
|
2107 |
nexttoken, id, t.id, t.line, nexttoken.value); |
|
2108 |
} |
|
2109 |
} else if (nexttoken.type !== "(identifier)" || |
|
2110 |
nexttoken.value !== id) { |
|
2111 |
warning("Expected '{a}' and instead saw '{b}'.", |
|
2112 |
nexttoken, id, nexttoken.value); |
|
2113 |
} |
|
2114 |
} |
|
2115 |
|
|
2116 |
prevtoken = token; |
|
2117 |
token = nexttoken; |
|
2118 |
for (;;) { |
|
2119 |
nexttoken = lookahead.shift() || lex.token(); |
|
2120 |
if (nexttoken.id === "(end)" || nexttoken.id === "(error)") { |
|
2121 |
return; |
|
2122 |
} |
|
2123 |
if (nexttoken.type === "special") { |
|
2124 |
doOption(); |
|
2125 |
} else { |
|
2126 |
if (nexttoken.id !== "(endline)") { |
|
2127 |
break; |
|
2128 |
} |
|
2129 |
} |
|
2130 |
} |
|
2131 |
} |
|
2132 |
|
|
2133 |
|
|
2134 |
// This is the heart of JSHINT, the Pratt parser. In addition to parsing, it |
|
2135 |
// is looking for ad hoc lint patterns. We add .fud to Pratt's model, which is |
|
2136 |
// like .nud except that it is only used on the first token of a statement. |
|
2137 |
// Having .fud makes it much easier to define statement-oriented languages like |
|
2138 |
// JavaScript. I retained Pratt's nomenclature. |
|
2139 |
|
|
2140 |
// .nud Null denotation |
|
2141 |
// .fud First null denotation |
|
2142 |
// .led Left denotation |
|
2143 |
// lbp Left binding power |
|
2144 |
// rbp Right binding power |
|
2145 |
|
|
2146 |
// They are elements of the parsing method called Top Down Operator Precedence. |
|
2147 |
|
|
2148 |
function expression(rbp, initial) { |
|
2149 |
var left, isArray = false, isObject = false; |
|
2150 |
|
|
2151 |
if (nexttoken.id === "(end)") |
|
2152 |
error("Unexpected early end of program.", token); |
|
2153 |
|
|
2154 |
advance(); |
|
2155 |
if (initial) { |
|
2156 |
anonname = "anonymous"; |
|
2157 |
funct["(verb)"] = token.value; |
|
2158 |
} |
|
2159 |
if (initial === true && token.fud) { |
|
2160 |
left = token.fud(); |
|
2161 |
} else { |
|
2162 |
if (token.nud) { |
|
2163 |
left = token.nud(); |
|
2164 |
} else { |
|
2165 |
if (nexttoken.type === "(number)" && token.id === ".") { |
|
2166 |
warning("A leading decimal point can be confused with a dot: '.{a}'.", |
|
2167 |
token, nexttoken.value); |
|
2168 |
advance(); |
|
2169 |
return token; |
|
2170 |
} else { |
|
2171 |
error("Expected an identifier and instead saw '{a}'.", |
|
2172 |
token, token.id); |
|
2173 |
} |
|
2174 |
} |
|
2175 |
while (rbp < nexttoken.lbp) { |
|
2176 |
isArray = token.value === "Array"; |
|
2177 |
isObject = token.value === "Object"; |
|
2178 |
|
|
2179 |
// #527, new Foo.Array(), Foo.Array(), new Foo.Object(), Foo.Object() |
|
2180 |
// Line breaks in IfStatement heads exist to satisfy the checkJSHint |
|
2181 |
// "Line too long." error. |
|
2182 |
if (left && (left.value || (left.first && left.first.value))) { |
|
2183 |
// If the left.value is not "new", or the left.first.value is a "." |
|
2184 |
// then safely assume that this is not "new Array()" and possibly |
|
2185 |
// not "new Object()"... |
|
2186 |
if (left.value !== "new" || |
|
2187 |
(left.first && left.first.value && left.first.value === ".")) { |
|
2188 |
isArray = false; |
|
2189 |
// ...In the case of Object, if the left.value and token.value |
|
2190 |
// are not equal, then safely assume that this not "new Object()" |
|
2191 |
if (left.value !== token.value) { |
|
2192 |
isObject = false; |
|
2193 |
} |
|
2194 |
} |
|
2195 |
} |
|
2196 |
|
|
2197 |
advance(); |
|
2198 |
if (isArray && token.id === "(" && nexttoken.id === ")") |
|
2199 |
warning("Use the array literal notation [].", token); |
|
2200 |
if (isObject && token.id === "(" && nexttoken.id === ")") |
|
2201 |
warning("Use the object literal notation {}.", token); |
|
2202 |
if (token.led) { |
|
2203 |
left = token.led(left); |
|
2204 |
} else { |
|
2205 |
error("Expected an operator and instead saw '{a}'.", |
|
2206 |
token, token.id); |
|
2207 |
} |
|
2208 |
} |
|
2209 |
} |
|
2210 |
return left; |
|
2211 |
} |
|
2212 |
|
|
2213 |
|
|
2214 |
// Functions for conformance of style. |
|
2215 |
|
|
2216 |
function adjacent(left, right) { |
|
2217 |
left = left || token; |
|
2218 |
right = right || nexttoken; |
|
2219 |
if (option.white) { |
|
2220 |
if (left.character !== right.from && left.line === right.line) { |
|
2221 |
left.from += (left.character - left.from); |
|
2222 |
warning("Unexpected space after '{a}'.", left, left.value); |
|
2223 |
} |
|
2224 |
} |
|
2225 |
} |
|
2226 |
|
|
2227 |
function nobreak(left, right) { |
|
2228 |
left = left || token; |
|
2229 |
right = right || nexttoken; |
|
2230 |
if (option.white && (left.character !== right.from || left.line !== right.line)) { |
|
2231 |
warning("Unexpected space before '{a}'.", right, right.value); |
|
2232 |
} |
|
2233 |
} |
|
2234 |
|
|
2235 |
function nospace(left, right) { |
|
2236 |
left = left || token; |
|
2237 |
right = right || nexttoken; |
|
2238 |
if (option.white && !left.comment) { |
|
2239 |
if (left.line === right.line) { |
|
2240 |
adjacent(left, right); |
|
2241 |
} |
|
2242 |
} |
|
2243 |
} |
|
2244 |
|
|
2245 |
function nonadjacent(left, right) { |
|
2246 |
if (option.white) { |
|
2247 |
left = left || token; |
|
2248 |
right = right || nexttoken; |
|
2249 |
if (left.value === ";" && right.value === ";") { |
|
2250 |
return; |
|
2251 |
} |
|
2252 |
if (left.line === right.line && left.character === right.from) { |
|
2253 |
left.from += (left.character - left.from); |
|
2254 |
warning("Missing space after '{a}'.", |
|
2255 |
left, left.value); |
|
2256 |
} |
|
2257 |
} |
|
2258 |
} |
|
2259 |
|
|
2260 |
function nobreaknonadjacent(left, right) { |
|
2261 |
left = left || token; |
|
2262 |
right = right || nexttoken; |
|
2263 |
if (!option.laxbreak && left.line !== right.line) { |
|
2264 |
warning("Bad line breaking before '{a}'.", right, right.id); |
|
2265 |
} else if (option.white) { |
|
2266 |
left = left || token; |
|
2267 |
right = right || nexttoken; |
|
2268 |
if (left.character === right.from) { |
|
2269 |
left.from += (left.character - left.from); |
|
2270 |
warning("Missing space after '{a}'.", |
|
2271 |
left, left.value); |
|
2272 |
} |
|
2273 |
} |
|
2274 |
} |
|
2275 |
|
|
2276 |
function indentation(bias) { |
|
2277 |
var i; |
|
2278 |
if (option.white && nexttoken.id !== "(end)") { |
|
2279 |
i = indent + (bias || 0); |
|
2280 |
if (nexttoken.from !== i) { |
|
2281 |
warning( |
|
2282 |
"Expected '{a}' to have an indentation at {b} instead at {c}.", |
|
2283 |
nexttoken, nexttoken.value, i, nexttoken.from); |
|
2284 |
} |
|
2285 |
} |
|
2286 |
} |
|
2287 |
|
|
2288 |
function nolinebreak(t) { |
|
2289 |
t = t || token; |
|
2290 |
if (t.line !== nexttoken.line) { |
|
2291 |
warning("Line breaking error '{a}'.", t, t.value); |
|
2292 |
} |
|
2293 |
} |
|
2294 |
|
|
2295 |
|
|
2296 |
function comma() { |
|
2297 |
if (token.line !== nexttoken.line) { |
|
2298 |
if (!option.laxcomma) { |
|
2299 |
if (comma.first) { |
|
2300 |
warning("Comma warnings can be turned off with 'laxcomma'"); |
|
2301 |
comma.first = false; |
|
2302 |
} |
|
2303 |
warning("Bad line breaking before '{a}'.", token, nexttoken.id); |
|
2304 |
} |
|
2305 |
} else if (!token.comment && token.character !== nexttoken.from && option.white) { |
|
2306 |
token.from += (token.character - token.from); |
|
2307 |
warning("Unexpected space after '{a}'.", token, token.value); |
|
2308 |
} |
|
2309 |
advance(","); |
|
2310 |
nonadjacent(token, nexttoken); |
|
2311 |
} |
|
2312 |
|
|
2313 |
|
|
2314 |
// Functional constructors for making the symbols that will be inherited by |
|
2315 |
// tokens. |
|
2316 |
|
|
2317 |
function symbol(s, p) { |
|
2318 |
var x = syntax[s]; |
|
2319 |
if (!x || typeof x !== "object") { |
|
2320 |
syntax[s] = x = { |
|
2321 |
id: s, |
|
2322 |
lbp: p, |
|
2323 |
value: s |
|
2324 |
}; |
|
2325 |
} |
|
2326 |
return x; |
|
2327 |
} |
|
2328 |
|
|
2329 |
|
|
2330 |
function delim(s) { |
|
2331 |
return symbol(s, 0); |
|
2332 |
} |
|
2333 |
|
|
2334 |
|
|
2335 |
function stmt(s, f) { |
|
2336 |
var x = delim(s); |
|
2337 |
x.identifier = x.reserved = true; |
|
2338 |
x.fud = f; |
|
2339 |
return x; |
|
2340 |
} |
|
2341 |
|
|
2342 |
|
|
2343 |
function blockstmt(s, f) { |
|
2344 |
var x = stmt(s, f); |
|
2345 |
x.block = true; |
|
2346 |
return x; |
|
2347 |
} |
|
2348 |
|
|
2349 |
|
|
2350 |
function reserveName(x) { |
|
2351 |
var c = x.id.charAt(0); |
|
2352 |
if ((c >= "a" && c <= "z") || (c >= "A" && c <= "Z")) { |
|
2353 |
x.identifier = x.reserved = true; |
|
2354 |
} |
|
2355 |
return x; |
|
2356 |
} |
|
2357 |
|
|
2358 |
|
|
2359 |
function prefix(s, f) { |
|
2360 |
var x = symbol(s, 150); |
|
2361 |
reserveName(x); |
|
2362 |
x.nud = (typeof f === "function") ? f : function () { |
|
2363 |
this.right = expression(150); |
|
2364 |
this.arity = "unary"; |
|
2365 |
if (this.id === "++" || this.id === "--") { |
|
2366 |
if (option.plusplus) { |
|
2367 |
warning("Unexpected use of '{a}'.", this, this.id); |
|
2368 |
} else if ((!this.right.identifier || this.right.reserved) && |
|
2369 |
this.right.id !== "." && this.right.id !== "[") { |
|
2370 |
warning("Bad operand.", this); |
|
2371 |
} |
|
2372 |
} |
|
2373 |
return this; |
|
2374 |
}; |
|
2375 |
return x; |
|
2376 |
} |
|
2377 |
|
|
2378 |
|
|
2379 |
function type(s, f) { |
|
2380 |
var x = delim(s); |
|
2381 |
x.type = s; |
|
2382 |
x.nud = f; |
|
2383 |
return x; |
|
2384 |
} |
|
2385 |
|
|
2386 |
|
|
2387 |
function reserve(s, f) { |
|
2388 |
var x = type(s, f); |
|
2389 |
x.identifier = x.reserved = true; |
|
2390 |
return x; |
|
2391 |
} |
|
2392 |
|
|
2393 |
|
|
2394 |
function reservevar(s, v) { |
|
2395 |
return reserve(s, function () { |
|
2396 |
if (typeof v === "function") { |
|
2397 |
v(this); |
|
2398 |
} |
|
2399 |
return this; |
|
2400 |
}); |
|
2401 |
} |
|
2402 |
|
|
2403 |
|
|
2404 |
function infix(s, f, p, w) { |
|
2405 |
var x = symbol(s, p); |
|
2406 |
reserveName(x); |
|
2407 |
x.led = function (left) { |
|
2408 |
if (!w) { |
|
2409 |
nobreaknonadjacent(prevtoken, token); |
|
2410 |
nonadjacent(token, nexttoken); |
|
2411 |
} |
|
2412 |
if (s === "in" && left.id === "!") { |
|
2413 |
warning("Confusing use of '{a}'.", left, "!"); |
|
2414 |
} |
|
2415 |
if (typeof f === "function") { |
|
2416 |
return f(left, this); |
|
2417 |
} else { |
|
2418 |
this.left = left; |
|
2419 |
this.right = expression(p); |
|
2420 |
return this; |
|
2421 |
} |
|
2422 |
}; |
|
2423 |
return x; |
|
2424 |
} |
|
2425 |
|
|
2426 |
|
|
2427 |
function relation(s, f) { |
|
2428 |
var x = symbol(s, 100); |
|
2429 |
x.led = function (left) { |
|
2430 |
nobreaknonadjacent(prevtoken, token); |
|
2431 |
nonadjacent(token, nexttoken); |
|
2432 |
var right = expression(100); |
|
2433 |
|
|
2434 |
if (isIdentifier(left, "NaN") || isIdentifier(right, "NaN")) { |
|
2435 |
warning("Use the isNaN function to compare with NaN.", this); |
|
2436 |
} else if (f) { |
|
2437 |
f.apply(this, [left, right]); |
|
2438 |
} |
|
2439 |
if (left.id === "!") { |
|
2440 |
warning("Confusing use of '{a}'.", left, "!"); |
|
2441 |
} |
|
2442 |
if (right.id === "!") { |
|
2443 |
warning("Confusing use of '{a}'.", right, "!"); |
|
2444 |
} |
|
2445 |
this.left = left; |
|
2446 |
this.right = right; |
|
2447 |
return this; |
|
2448 |
}; |
|
2449 |
return x; |
|
2450 |
} |
|
2451 |
|
|
2452 |
|
|
2453 |
function isPoorRelation(node) { |
|
2454 |
return node && |
|
2455 |
((node.type === "(number)" && +node.value === 0) || |
|
2456 |
(node.type === "(string)" && node.value === "") || |
|
2457 |
(node.type === "null" && !option.eqnull) || |
|
2458 |
node.type === "true" || |
|
2459 |
node.type === "false" || |
|
2460 |
node.type === "undefined"); |
|
2461 |
} |
|
2462 |
|
|
2463 |
|
|
2464 |
function assignop(s) { |
|
2465 |
symbol(s, 20).exps = true; |
|
2466 |
|
|
2467 |
return infix(s, function (left, that) { |
|
2468 |
that.left = left; |
|
2469 |
|
|
2470 |
if (predefined[left.value] === false && |
|
2471 |
scope[left.value]["(global)"] === true) { |
|
2472 |
warning("Read only.", left); |
|
2473 |
} else if (left["function"]) { |
|
2474 |
warning("'{a}' is a function.", left, left.value); |
|
2475 |
} |
|
2476 |
|
|
2477 |
if (left) { |
|
2478 |
if (option.esnext && funct[left.value] === "const") { |
|
2479 |
warning("Attempting to override '{a}' which is a constant", left, left.value); |
|
2480 |
} |
|
2481 |
|
|
2482 |
if (left.id === "." || left.id === "[") { |
|
2483 |
if (!left.left || left.left.value === "arguments") { |
|
2484 |
warning("Bad assignment.", that); |
|
2485 |
} |
|
2486 |
that.right = expression(19); |
|
2487 |
return that; |
|
2488 |
} else if (left.identifier && !left.reserved) { |
|
2489 |
if (funct[left.value] === "exception") { |
|
2490 |
warning("Do not assign to the exception parameter.", left); |
|
2491 |
} |
|
2492 |
that.right = expression(19); |
|
2493 |
return that; |
|
2494 |
} |
|
2495 |
|
|
2496 |
if (left === syntax["function"]) { |
|
2497 |
warning( |
|
2498 |
"Expected an identifier in an assignment and instead saw a function invocation.", |
|
2499 |
token); |
|
2500 |
} |
|
2501 |
} |
|
2502 |
|
|
2503 |
error("Bad assignment.", that); |
|
2504 |
}, 20); |
|
2505 |
} |
|
2506 |
|
|
2507 |
|
|
2508 |
function bitwise(s, f, p) { |
|
2509 |
var x = symbol(s, p); |
|
2510 |
reserveName(x); |
|
2511 |
x.led = (typeof f === "function") ? f : function (left) { |
|
2512 |
if (option.bitwise) { |
|
2513 |
warning("Unexpected use of '{a}'.", this, this.id); |
|
2514 |
} |
|
2515 |
this.left = left; |
|
2516 |
this.right = expression(p); |
|
2517 |
return this; |
|
2518 |
}; |
|
2519 |
return x; |
|
2520 |
} |
|
2521 |
|
|
2522 |
|
|
2523 |
function bitwiseassignop(s) { |
|
2524 |
symbol(s, 20).exps = true; |
|
2525 |
return infix(s, function (left, that) { |
|
2526 |
if (option.bitwise) { |
|
2527 |
warning("Unexpected use of '{a}'.", that, that.id); |
|
2528 |
} |
|
2529 |
nonadjacent(prevtoken, token); |
|
2530 |
nonadjacent(token, nexttoken); |
|
2531 |
if (left) { |
|
2532 |
if (left.id === "." || left.id === "[" || |
|
2533 |
(left.identifier && !left.reserved)) { |
|
2534 |
expression(19); |
|
2535 |
return that; |
|
2536 |
} |
|
2537 |
if (left === syntax["function"]) { |
|
2538 |
warning( |
|
2539 |
"Expected an identifier in an assignment, and instead saw a function invocation.", |
|
2540 |
token); |
|
2541 |
} |
|
2542 |
return that; |
|
2543 |
} |
|
2544 |
error("Bad assignment.", that); |
|
2545 |
}, 20); |
|
2546 |
} |
|
2547 |
|
|
2548 |
|
|
2549 |
function suffix(s) { |
|
2550 |
var x = symbol(s, 150); |
|
2551 |
x.led = function (left) { |
|
2552 |
if (option.plusplus) { |
|
2553 |
warning("Unexpected use of '{a}'.", this, this.id); |
|
2554 |
} else if ((!left.identifier || left.reserved) && |
|
2555 |
left.id !== "." && left.id !== "[") { |
|
2556 |
warning("Bad operand.", this); |
|
2557 |
} |
|
2558 |
this.left = left; |
|
2559 |
return this; |
|
2560 |
}; |
|
2561 |
return x; |
|
2562 |
} |
|
2563 |
|
|
2564 |
|
|
2565 |
// fnparam means that this identifier is being defined as a function |
|
2566 |
// argument (see identifier()) |
|
2567 |
function optionalidentifier(fnparam) { |
|
2568 |
if (nexttoken.identifier) { |
|
2569 |
advance(); |
|
2570 |
if (token.reserved && !option.es5) { |
|
2571 |
// `undefined` as a function param is a common pattern to protect |
|
2572 |
// against the case when somebody does `undefined = true` and |
|
2573 |
// help with minification. More info: https://gist.github.com/315916 |
|
2574 |
if (!fnparam || token.value !== "undefined") { |
|
2575 |
warning("Expected an identifier and instead saw '{a}' (a reserved word).", |
|
2576 |
token, token.id); |
|
2577 |
} |
|
2578 |
} |
|
2579 |
return token.value; |
|
2580 |
} |
|
2581 |
} |
|
2582 |
|
|
2583 |
// fnparam means that this identifier is being defined as a function |
|
2584 |
// argument |
|
2585 |
function identifier(fnparam) { |
|
2586 |
var i = optionalidentifier(fnparam); |
|
2587 |
if (i) { |
|
2588 |
return i; |
|
2589 |
} |
|
2590 |
if (token.id === "function" && nexttoken.id === "(") { |
|
2591 |
warning("Missing name in function declaration."); |
|
2592 |
} else { |
|
2593 |
error("Expected an identifier and instead saw '{a}'.", |
|
2594 |
nexttoken, nexttoken.value); |
|
2595 |
} |
|
2596 |
} |
|
2597 |
|
|
2598 |
|
|
2599 |
function reachable(s) { |
|
2600 |
var i = 0, t; |
|
2601 |
if (nexttoken.id !== ";" || noreach) { |
|
2602 |
return; |
|
2603 |
} |
|
2604 |
for (;;) { |
|
2605 |
t = peek(i); |
|
2606 |
if (t.reach) { |
|
2607 |
return; |
|
2608 |
} |
|
2609 |
if (t.id !== "(endline)") { |
|
2610 |
if (t.id === "function") { |
|
2611 |
if (!option.latedef) { |
|
2612 |
break; |
|
2613 |
} |
|
2614 |
warning( |
|
2615 |
"Inner functions should be listed at the top of the outer function.", t); |
|
2616 |
break; |
|
2617 |
} |
|
2618 |
warning("Unreachable '{a}' after '{b}'.", t, t.value, s); |
|
2619 |
break; |
|
2620 |
} |
|
2621 |
i += 1; |
|
2622 |
} |
|
2623 |
} |
|
2624 |
|
|
2625 |
|
|
2626 |
function statement(noindent) { |
|
2627 |
var i = indent, r, s = scope, t = nexttoken; |
|
2628 |
|
|
2629 |
if (t.id === ";") { |
|
2630 |
advance(";"); |
|
2631 |
return; |
|
2632 |
} |
|
2633 |
|
|
2634 |
// Is this a labelled statement? |
|
2635 |
|
|
2636 |
if (t.identifier && !t.reserved && peek().id === ":") { |
|
2637 |
advance(); |
|
2638 |
advance(":"); |
|
2639 |
scope = Object.create(s); |
|
2640 |
addlabel(t.value, "label"); |
|
2641 |
|
|
2642 |
if (!nexttoken.labelled && nexttoken.value !== "{") { |
|
2643 |
warning("Label '{a}' on {b} statement.", nexttoken, t.value, nexttoken.value); |
|
2644 |
} |
|
2645 |
|
|
2646 |
if (jx.test(t.value + ":")) { |
|
2647 |
warning("Label '{a}' looks like a javascript url.", t, t.value); |
|
2648 |
} |
|
2649 |
|
|
2650 |
nexttoken.label = t.value; |
|
2651 |
t = nexttoken; |
|
2652 |
} |
|
2653 |
|
|
2654 |
// Is it a lonely block? |
|
2655 |
|
|
2656 |
if (t.id === "{") { |
|
2657 |
block(true, true); |
|
2658 |
return; |
|
2659 |
} |
|
2660 |
|
|
2661 |
// Parse the statement. |
|
2662 |
|
|
2663 |
if (!noindent) { |
|
2664 |
indentation(); |
|
2665 |
} |
|
2666 |
r = expression(0, true); |
|
2667 |
|
|
2668 |
// Look for the final semicolon. |
|
2669 |
|
|
2670 |
if (!t.block) { |
|
2671 |
if (!option.expr && (!r || !r.exps)) { |
|
2672 |
warning("Expected an assignment or function call and instead saw an expression.", |
|
2673 |
token); |
|
2674 |
} else if (option.nonew && r.id === "(" && r.left.id === "new") { |
|
2675 |
warning("Do not use 'new' for side effects.", t); |
|
2676 |
} |
|
2677 |
|
|
2678 |
if (nexttoken.id === ",") { |
|
2679 |
return comma(); |
|
2680 |
} |
|
2681 |
|
|
2682 |
if (nexttoken.id !== ";") { |
|
2683 |
if (!option.asi) { |
|
2684 |
// If this is the last statement in a block that ends on |
|
2685 |
// the same line *and* option lastsemic is on, ignore the warning. |
|
2686 |
// Otherwise, complain about missing semicolon. |
|
2687 |
if (!option.lastsemic || nexttoken.id !== "}" || |
|
2688 |
nexttoken.line !== token.line) { |
|
2689 |
warningAt("Missing semicolon.", token.line, token.character); |
|
2690 |
} |
|
2691 |
} |
|
2692 |
} else { |
|
2693 |
adjacent(token, nexttoken); |
|
2694 |
advance(";"); |
|
2695 |
nonadjacent(token, nexttoken); |
|
2696 |
} |
|
2697 |
} |
|
2698 |
|
|
2699 |
// Restore the indentation. |
|
2700 |
|
|
2701 |
indent = i; |
|
2702 |
scope = s; |
|
2703 |
return r; |
|
2704 |
} |
|
2705 |
|
|
2706 |
|
|
2707 |
function statements(startLine) { |
|
2708 |
var a = [], p; |
|
2709 |
|
|
2710 |
while (!nexttoken.reach && nexttoken.id !== "(end)") { |
|
2711 |
if (nexttoken.id === ";") { |
|
2712 |
p = peek(); |
|
2713 |
if (!p || p.id !== "(") { |
|
2714 |
warning("Unnecessary semicolon."); |
|
2715 |
} |
|
2716 |
advance(";"); |
|
2717 |
} else { |
|
2718 |
a.push(statement(startLine === nexttoken.line)); |
|
2719 |
} |
|
2720 |
} |
|
2721 |
return a; |
|
2722 |
} |
|
2723 |
|
|
2724 |
|
|
2725 |
/* |
|
2726 |
* read all directives |
|
2727 |
* recognizes a simple form of asi, but always |
|
2728 |
* warns, if it is used |
|
2729 |
*/ |
|
2730 |
function directives() { |
|
2731 |
var i, p, pn; |
|
2732 |
|
|
2733 |
for (;;) { |
|
2734 |
if (nexttoken.id === "(string)") { |
|
2735 |
p = peek(0); |
|
2736 |
if (p.id === "(endline)") { |
|
2737 |
i = 1; |
|
2738 |
do { |
|
2739 |
pn = peek(i); |
|
2740 |
i = i + 1; |
|
2741 |
} while (pn.id === "(endline)"); |
|
2742 |
|
|
2743 |
if (pn.id !== ";") { |
|
2744 |
if (pn.id !== "(string)" && pn.id !== "(number)" && |
|
2745 |
pn.id !== "(regexp)" && pn.identifier !== true && |
|
2746 |
pn.id !== "}") { |
|
2747 |
break; |
|
2748 |
} |
|
2749 |
warning("Missing semicolon.", nexttoken); |
|
2750 |
} else { |
|
2751 |
p = pn; |
|
2752 |
} |
|
2753 |
} else if (p.id === "}") { |
|
2754 |
// directive with no other statements, warn about missing semicolon |
|
2755 |
warning("Missing semicolon.", p); |
|
2756 |
} else if (p.id !== ";") { |
|
2757 |
break; |
|
2758 |
} |
|
2759 |
|
|
2760 |
indentation(); |
|
2761 |
advance(); |
|
2762 |
if (directive[token.value]) { |
|
2763 |
warning("Unnecessary directive \"{a}\".", token, token.value); |
|
2764 |
} |
|
2765 |
|
|
2766 |
if (token.value === "use strict") { |
|
2767 |
if (!option["(explicitNewcap)"]) |
|
2768 |
option.newcap = true; |
|
2769 |
option.undef = true; |
|
2770 |
} |
|
2771 |
|
|
2772 |
// there's no directive negation, so always set to true |
|
2773 |
directive[token.value] = true; |
|
2774 |
|
|
2775 |
if (p.id === ";") { |
|
2776 |
advance(";"); |
|
2777 |
} |
|
2778 |
continue; |
|
2779 |
} |
|
2780 |
break; |
|
2781 |
} |
|
2782 |
} |
|
2783 |
|
|
2784 |
|
|
2785 |
/* |
|
2786 |
* Parses a single block. A block is a sequence of statements wrapped in |
|
2787 |
* braces. |
|
2788 |
* |
|
2789 |
* ordinary - true for everything but function bodies and try blocks. |
|
2790 |
* stmt - true if block can be a single statement (e.g. in if/for/while). |
|
2791 |
* isfunc - true if block is a function body |
|
2792 |
*/ |
|
2793 |
function block(ordinary, stmt, isfunc) { |
|
2794 |
var a, |
|
2795 |
b = inblock, |
|
2796 |
old_indent = indent, |
|
2797 |
m, |
|
2798 |
s = scope, |
|
2799 |
t, |
|
2800 |
line, |
|
2801 |
d; |
|
2802 |
|
|
2803 |
inblock = ordinary; |
|
2804 |
|
|
2805 |
if (!ordinary || !option.funcscope) |
|
2806 |
scope = Object.create(scope); |
|
2807 |
|
|
2808 |
nonadjacent(token, nexttoken); |
|
2809 |
t = nexttoken; |
|
2810 |
|
|
2811 |
var metrics = funct["(metrics)"]; |
|
2812 |
metrics.nestedBlockDepth += 1; |
|
2813 |
metrics.verifyMaxNestedBlockDepthPerFunction(); |
|
2814 |
|
|
2815 |
if (nexttoken.id === "{") { |
|
2816 |
advance("{"); |
|
2817 |
line = token.line; |
|
2818 |
if (nexttoken.id !== "}") { |
|
2819 |
indent += option.indent; |
|
2820 |
while (!ordinary && nexttoken.from > indent) { |
|
2821 |
indent += option.indent; |
|
2822 |
} |
|
2823 |
|
|
2824 |
if (isfunc) { |
|
2825 |
m = {}; |
|
2826 |
for (d in directive) { |
|
2827 |
if (is_own(directive, d)) { |
|
2828 |
m[d] = directive[d]; |
|
2829 |
} |
|
2830 |
} |
|
2831 |
directives(); |
|
2832 |
|
|
2833 |
if (option.strict && funct["(context)"]["(global)"]) { |
|
2834 |
if (!m["use strict"] && !directive["use strict"]) { |
|
2835 |
warning("Missing \"use strict\" statement."); |
|
2836 |
} |
|
2837 |
} |
|
2838 |
} |
|
2839 |
|
|
2840 |
a = statements(line); |
|
2841 |
|
|
2842 |
metrics.statementCount += a.length; |
|
2843 |
|
|
2844 |
if (isfunc) { |
|
2845 |
directive = m; |
|
2846 |
} |
|
2847 |
|
|
2848 |
indent -= option.indent; |
|
2849 |
if (line !== nexttoken.line) { |
|
2850 |
indentation(); |
|
2851 |
} |
|
2852 |
} else if (line !== nexttoken.line) { |
|
2853 |
indentation(); |
|
2854 |
} |
|
2855 |
advance("}", t); |
|
2856 |
indent = old_indent; |
|
2857 |
} else if (!ordinary) { |
|
2858 |
error("Expected '{a}' and instead saw '{b}'.", |
|
2859 |
nexttoken, "{", nexttoken.value); |
|
2860 |
} else { |
|
2861 |
if (!stmt || option.curly) |
|
2862 |
warning("Expected '{a}' and instead saw '{b}'.", |
|
2863 |
nexttoken, "{", nexttoken.value); |
|
2864 |
|
|
2865 |
noreach = true; |
|
2866 |
indent += option.indent; |
|
2867 |
// test indentation only if statement is in new line |
|
2868 |
a = [statement(nexttoken.line === token.line)]; |
|
2869 |
indent -= option.indent; |
|
2870 |
noreach = false; |
|
2871 |
} |
|
2872 |
funct["(verb)"] = null; |
|
2873 |
if (!ordinary || !option.funcscope) scope = s; |
|
2874 |
inblock = b; |
|
2875 |
if (ordinary && option.noempty && (!a || a.length === 0)) { |
|
2876 |
warning("Empty block."); |
|
2877 |
} |
|
2878 |
metrics.nestedBlockDepth -= 1; |
|
2879 |
return a; |
|
2880 |
} |
|
2881 |
|
|
2882 |
|
|
2883 |
function countMember(m) { |
|
2884 |
if (membersOnly && typeof membersOnly[m] !== "boolean") { |
|
2885 |
warning("Unexpected /*member '{a}'.", token, m); |
|
2886 |
} |
|
2887 |
if (typeof member[m] === "number") { |
|
2888 |
member[m] += 1; |
|
2889 |
} else { |
|
2890 |
member[m] = 1; |
|
2891 |
} |
|
2892 |
} |
|
2893 |
|
|
2894 |
|
|
2895 |
function note_implied(token) { |
|
2896 |
var name = token.value, line = token.line, a = implied[name]; |
|
2897 |
if (typeof a === "function") { |
|
2898 |
a = false; |
|
2899 |
} |
|
2900 |
|
|
2901 |
if (!a) { |
|
2902 |
a = [line]; |
|
2903 |
implied[name] = a; |
|
2904 |
} else if (a[a.length - 1] !== line) { |
|
2905 |
a.push(line); |
|
2906 |
} |
|
2907 |
} |
|
2908 |
|
|
2909 |
|
|
2910 |
// Build the syntax table by declaring the syntactic elements of the language. |
|
2911 |
|
|
2912 |
type("(number)", function () { |
|
2913 |
return this; |
|
2914 |
}); |
|
2915 |
|
|
2916 |
type("(string)", function () { |
|
2917 |
return this; |
|
2918 |
}); |
|
2919 |
|
|
2920 |
syntax["(identifier)"] = { |
|
2921 |
type: "(identifier)", |
|
2922 |
lbp: 0, |
|
2923 |
identifier: true, |
|
2924 |
nud: function () { |
|
2925 |
var v = this.value, |
|
2926 |
s = scope[v], |
|
2927 |
f; |
|
2928 |
|
|
2929 |
if (typeof s === "function") { |
|
2930 |
// Protection against accidental inheritance. |
|
2931 |
s = undefined; |
|
2932 |
} else if (typeof s === "boolean") { |
|
2933 |
f = funct; |
|
2934 |
funct = functions[0]; |
|
2935 |
addlabel(v, "var"); |
|
2936 |
s = funct; |
|
2937 |
funct = f; |
|
2938 |
} |
|
2939 |
|
|
2940 |
// The name is in scope and defined in the current function. |
|
2941 |
if (funct === s) { |
|
2942 |
// Change 'unused' to 'var', and reject labels. |
|
2943 |
switch (funct[v]) { |
|
2944 |
case "unused": |
|
2945 |
funct[v] = "var"; |
|
2946 |
break; |
|
2947 |
case "unction": |
|
2948 |
funct[v] = "function"; |
|
2949 |
this["function"] = true; |
|
2950 |
break; |
|
2951 |
case "function": |
|
2952 |
this["function"] = true; |
|
2953 |
break; |
|
2954 |
case "label": |
|
2955 |
warning("'{a}' is a statement label.", token, v); |
|
2956 |
break; |
|
2957 |
} |
|
2958 |
} else if (funct["(global)"]) { |
|
2959 |
// The name is not defined in the function. If we are in the global |
|
2960 |
// scope, then we have an undefined variable. |
|
2961 |
// |
|
2962 |
// Operators typeof and delete do not raise runtime errors even if |
|
2963 |
// the base object of a reference is null so no need to display warning |
|
2964 |
// if we're inside of typeof or delete. |
|
2965 |
|
|
2966 |
if (option.undef && typeof predefined[v] !== "boolean") { |
|
2967 |
// Attempting to subscript a null reference will throw an |
|
2968 |
// error, even within the typeof and delete operators |
|
2969 |
if (!(anonname === "typeof" || anonname === "delete") || |
|
2970 |
(nexttoken && (nexttoken.value === "." || nexttoken.value === "["))) { |
|
2971 |
|
|
2972 |
isundef(funct, "'{a}' is not defined.", token, v); |
|
2973 |
} |
|
2974 |
} |
|
2975 |
|
|
2976 |
note_implied(token); |
|
2977 |
} else { |
|
2978 |
// If the name is already defined in the current |
|
2979 |
// function, but not as outer, then there is a scope error. |
|
2980 |
|
|
2981 |
switch (funct[v]) { |
|
2982 |
case "closure": |
|
2983 |
case "function": |
|
2984 |
case "var": |
|
2985 |
case "unused": |
|
2986 |
warning("'{a}' used out of scope.", token, v); |
|
2987 |
break; |
|
2988 |
case "label": |
|
2989 |
warning("'{a}' is a statement label.", token, v); |
|
2990 |
break; |
|
2991 |
case "outer": |
|
2992 |
case "global": |
|
2993 |
break; |
|
2994 |
default: |
|
2995 |
// If the name is defined in an outer function, make an outer entry, |
|
2996 |
// and if it was unused, make it var. |
|
2997 |
if (s === true) { |
|
2998 |
funct[v] = true; |
|
2999 |
} else if (s === null) { |
|
3000 |
warning("'{a}' is not allowed.", token, v); |
|
3001 |
note_implied(token); |
|
3002 |
} else if (typeof s !== "object") { |
|
3003 |
// Operators typeof and delete do not raise runtime errors even |
|
3004 |
// if the base object of a reference is null so no need to |
|
3005 |
// display warning if we're inside of typeof or delete. |
|
3006 |
if (option.undef) { |
|
3007 |
// Attempting to subscript a null reference will throw an |
|
3008 |
// error, even within the typeof and delete operators |
|
3009 |
if (!(anonname === "typeof" || anonname === "delete") || |
|
3010 |
(nexttoken && |
|
3011 |
(nexttoken.value === "." || nexttoken.value === "["))) { |
|
3012 |
|
|
3013 |
isundef(funct, "'{a}' is not defined.", token, v); |
|
3014 |
} |
|
3015 |
} |
|
3016 |
funct[v] = true; |
|
3017 |
note_implied(token); |
|
3018 |
} else { |
|
3019 |
switch (s[v]) { |
|
3020 |
case "function": |
|
3021 |
case "unction": |
|
3022 |
this["function"] = true; |
|
3023 |
s[v] = "closure"; |
|
3024 |
funct[v] = s["(global)"] ? "global" : "outer"; |
|
3025 |
break; |
|
3026 |
case "var": |
|
3027 |
case "unused": |
|
3028 |
s[v] = "closure"; |
|
3029 |
funct[v] = s["(global)"] ? "global" : "outer"; |
|
3030 |
break; |
|
3031 |
case "closure": |
|
3032 |
funct[v] = s["(global)"] ? "global" : "outer"; |
|
3033 |
break; |
|
3034 |
case "label": |
|
3035 |
warning("'{a}' is a statement label.", token, v); |
|
3036 |
} |
|
3037 |
} |
|
3038 |
} |
|
3039 |
} |
|
3040 |
return this; |
|
3041 |
}, |
|
3042 |
led: function () { |
|
3043 |
error("Expected an operator and instead saw '{a}'.", |
|
3044 |
nexttoken, nexttoken.value); |
|
3045 |
} |
|
3046 |
}; |
|
3047 |
|
|
3048 |
type("(regexp)", function () { |
|
3049 |
return this; |
|
3050 |
}); |
|
3051 |
|
|
3052 |
|
|
3053 |
// ECMAScript parser |
|
3054 |
|
|
3055 |
delim("(endline)"); |
|
3056 |
delim("(begin)"); |
|
3057 |
delim("(end)").reach = true; |
|
3058 |
delim("</").reach = true; |
|
3059 |
delim("<!"); |
|
3060 |
delim("<!--"); |
|
3061 |
delim("-->"); |
|
3062 |
delim("(error)").reach = true; |
|
3063 |
delim("}").reach = true; |
|
3064 |
delim(")"); |
|
3065 |
delim("]"); |
|
3066 |
delim("\"").reach = true; |
|
3067 |
delim("'").reach = true; |
|
3068 |
delim(";"); |
|
3069 |
delim(":").reach = true; |
|
3070 |
delim(","); |
|
3071 |
delim("#"); |
|
3072 |
delim("@"); |
|
3073 |
reserve("else"); |
|
3074 |
reserve("case").reach = true; |
|
3075 |
reserve("catch"); |
|
3076 |
reserve("default").reach = true; |
|
3077 |
reserve("finally"); |
|
3078 |
reservevar("arguments", function (x) { |
|
3079 |
if (directive["use strict"] && funct["(global)"]) { |
|
3080 |
warning("Strict violation.", x); |
|
3081 |
} |
|
3082 |
}); |
|
3083 |
reservevar("eval"); |
|
3084 |
reservevar("false"); |
|
3085 |
reservevar("Infinity"); |
|
3086 |
reservevar("null"); |
|
3087 |
reservevar("this", function (x) { |
|
3088 |
if (directive["use strict"] && !option.validthis && ((funct["(statement)"] && |
|
3089 |
funct["(name)"].charAt(0) > "Z") || funct["(global)"])) { |
|
3090 |
warning("Possible strict violation.", x); |
|
3091 |
} |
|
3092 |
}); |
|
3093 |
reservevar("true"); |
|
3094 |
reservevar("undefined"); |
|
3095 |
assignop("=", "assign", 20); |
|
3096 |
assignop("+=", "assignadd", 20); |
|
3097 |
assignop("-=", "assignsub", 20); |
|
3098 |
assignop("*=", "assignmult", 20); |
|
3099 |
assignop("/=", "assigndiv", 20).nud = function () { |
|
3100 |
error("A regular expression literal can be confused with '/='."); |
|
3101 |
}; |
|
3102 |
assignop("%=", "assignmod", 20); |
|
3103 |
bitwiseassignop("&=", "assignbitand", 20); |
|
3104 |
bitwiseassignop("|=", "assignbitor", 20); |
|
3105 |
bitwiseassignop("^=", "assignbitxor", 20); |
|
3106 |
bitwiseassignop("<<=", "assignshiftleft", 20); |
|
3107 |
bitwiseassignop(">>=", "assignshiftright", 20); |
|
3108 |
bitwiseassignop(">>>=", "assignshiftrightunsigned", 20); |
|
3109 |
infix("?", function (left, that) { |
|
3110 |
that.left = left; |
|
3111 |
that.right = expression(10); |
|
3112 |
advance(":"); |
|
3113 |
that["else"] = expression(10); |
|
3114 |
return that; |
|
3115 |
}, 30); |
|
3116 |
|
|
3117 |
infix("||", "or", 40); |
|
3118 |
infix("&&", "and", 50); |
|
3119 |
bitwise("|", "bitor", 70); |
|
3120 |
bitwise("^", "bitxor", 80); |
|
3121 |
bitwise("&", "bitand", 90); |
|
3122 |
relation("==", function (left, right) { |
|
3123 |
var eqnull = option.eqnull && (left.value === "null" || right.value === "null"); |
|
3124 |
|
|
3125 |
if (!eqnull && option.eqeqeq) |
|
3126 |
warning("Expected '{a}' and instead saw '{b}'.", this, "===", "=="); |
|
3127 |
else if (isPoorRelation(left)) |
|
3128 |
warning("Use '{a}' to compare with '{b}'.", this, "===", left.value); |
|
3129 |
else if (isPoorRelation(right)) |
|
3130 |
warning("Use '{a}' to compare with '{b}'.", this, "===", right.value); |
|
3131 |
|
|
3132 |
return this; |
|
3133 |
}); |
|
3134 |
relation("==="); |
|
3135 |
relation("!=", function (left, right) { |
|
3136 |
var eqnull = option.eqnull && |
|
3137 |
(left.value === "null" || right.value === "null"); |
|
3138 |
|
|
3139 |
if (!eqnull && option.eqeqeq) { |
|
3140 |
warning("Expected '{a}' and instead saw '{b}'.", |
|
3141 |
this, "!==", "!="); |
|
3142 |
} else if (isPoorRelation(left)) { |
|
3143 |
warning("Use '{a}' to compare with '{b}'.", |
|
3144 |
this, "!==", left.value); |
|
3145 |
} else if (isPoorRelation(right)) { |
|
3146 |
warning("Use '{a}' to compare with '{b}'.", |
|
3147 |
this, "!==", right.value); |
|
3148 |
} |
|
3149 |
return this; |
|
3150 |
}); |
|
3151 |
relation("!=="); |
|
3152 |
relation("<"); |
|
3153 |
relation(">"); |
|
3154 |
relation("<="); |
|
3155 |
relation(">="); |
|
3156 |
bitwise("<<", "shiftleft", 120); |
|
3157 |
bitwise(">>", "shiftright", 120); |
|
3158 |
bitwise(">>>", "shiftrightunsigned", 120); |
|
3159 |
infix("in", "in", 120); |
|
3160 |
infix("instanceof", "instanceof", 120); |
|
3161 |
infix("+", function (left, that) { |
|
3162 |
var right = expression(130); |
|
3163 |
if (left && right && left.id === "(string)" && right.id === "(string)") { |
|
3164 |
left.value += right.value; |
|
3165 |
left.character = right.character; |
|
3166 |
if (!option.scripturl && jx.test(left.value)) { |
|
3167 |
warning("JavaScript URL.", left); |
|
3168 |
} |
|
3169 |
return left; |
|
3170 |
} |
|
3171 |
that.left = left; |
|
3172 |
that.right = right; |
|
3173 |
return that; |
|
3174 |
}, 130); |
|
3175 |
prefix("+", "num"); |
|
3176 |
prefix("+++", function () { |
|
3177 |
warning("Confusing pluses."); |
|
3178 |
this.right = expression(150); |
|
3179 |
this.arity = "unary"; |
|
3180 |
return this; |
|
3181 |
}); |
|
3182 |
infix("+++", function (left) { |
|
3183 |
warning("Confusing pluses."); |
|
3184 |
this.left = left; |
|
3185 |
this.right = expression(130); |
|
3186 |
return this; |
|
3187 |
}, 130); |
|
3188 |
infix("-", "sub", 130); |
|
3189 |
prefix("-", "neg"); |
|
3190 |
prefix("---", function () { |
|
3191 |
warning("Confusing minuses."); |
|
3192 |
this.right = expression(150); |
|
3193 |
this.arity = "unary"; |
|
3194 |
return this; |
|
3195 |
}); |
|
3196 |
infix("---", function (left) { |
|
3197 |
warning("Confusing minuses."); |
|
3198 |
this.left = left; |
|
3199 |
this.right = expression(130); |
|
3200 |
return this; |
|
3201 |
}, 130); |
|
3202 |
infix("*", "mult", 140); |
|
3203 |
infix("/", "div", 140); |
|
3204 |
infix("%", "mod", 140); |
|
3205 |
|
|
3206 |
suffix("++", "postinc"); |
|
3207 |
prefix("++", "preinc"); |
|
3208 |
syntax["++"].exps = true; |
|
3209 |
|
|
3210 |
suffix("--", "postdec"); |
|
3211 |
prefix("--", "predec"); |
|
3212 |
syntax["--"].exps = true; |
|
3213 |
prefix("delete", function () { |
|
3214 |
var p = expression(0); |
|
3215 |
if (!p || (p.id !== "." && p.id !== "[")) { |
|
3216 |
warning("Variables should not be deleted."); |
|
3217 |
} |
|
3218 |
this.first = p; |
|
3219 |
return this; |
|
3220 |
}).exps = true; |
|
3221 |
|
|
3222 |
prefix("~", function () { |
|
3223 |
if (option.bitwise) { |
|
3224 |
warning("Unexpected '{a}'.", this, "~"); |
|
3225 |
} |
|
3226 |
expression(150); |
|
3227 |
return this; |
|
3228 |
}); |
|
3229 |
|
|
3230 |
prefix("!", function () { |
|
3231 |
this.right = expression(150); |
|
3232 |
this.arity = "unary"; |
|
3233 |
if (bang[this.right.id] === true) { |
|
3234 |
warning("Confusing use of '{a}'.", this, "!"); |
|
3235 |
} |
|
3236 |
return this; |
|
3237 |
}); |
|
3238 |
prefix("typeof", "typeof"); |
|
3239 |
prefix("new", function () { |
|
3240 |
var c = expression(155), i; |
|
3241 |
if (c && c.id !== "function") { |
|
3242 |
if (c.identifier) { |
|
3243 |
c["new"] = true; |
|
3244 |
switch (c.value) { |
|
3245 |
case "Number": |
|
3246 |
case "String": |
|
3247 |
case "Boolean": |
|
3248 |
case "Math": |
|
3249 |
case "JSON": |
|
3250 |
warning("Do not use {a} as a constructor.", prevtoken, c.value); |
|
3251 |
break; |
|
3252 |
case "Function": |
|
3253 |
if (!option.evil) { |
|
3254 |
warning("The Function constructor is eval."); |
|
3255 |
} |
|
3256 |
break; |
|
3257 |
case "Date": |
|
3258 |
case "RegExp": |
|
3259 |
break; |
|
3260 |
default: |
|
3261 |
if (c.id !== "function") { |
|
3262 |
i = c.value.substr(0, 1); |
|
3263 |
if (option.newcap && (i < "A" || i > "Z") && !is_own(global, c.value)) { |
|
3264 |
warning("A constructor name should start with an uppercase letter.", |
|
3265 |
token); |
|
3266 |
} |
|
3267 |
} |
|
3268 |
} |
|
3269 |
} else { |
|
3270 |
if (c.id !== "." && c.id !== "[" && c.id !== "(") { |
|
3271 |
warning("Bad constructor.", token); |
|
3272 |
} |
|
3273 |
} |
|
3274 |
} else { |
|
3275 |
if (!option.supernew) |
|
3276 |
warning("Weird construction. Delete 'new'.", this); |
|
3277 |
} |
|
3278 |
adjacent(token, nexttoken); |
|
3279 |
if (nexttoken.id !== "(" && !option.supernew) { |
|
3280 |
warning("Missing '()' invoking a constructor.", |
|
3281 |
token, token.value); |
|
3282 |
} |
|
3283 |
this.first = c; |
|
3284 |
return this; |
|
3285 |
}); |
|
3286 |
syntax["new"].exps = true; |
|
3287 |
|
|
3288 |
prefix("void").exps = true; |
|
3289 |
|
|
3290 |
infix(".", function (left, that) { |
|
3291 |
adjacent(prevtoken, token); |
|
3292 |
nobreak(); |
|
3293 |
var m = identifier(); |
|
3294 |
if (typeof m === "string") { |
|
3295 |
countMember(m); |
|
3296 |
} |
|
3297 |
that.left = left; |
|
3298 |
that.right = m; |
|
3299 |
if (left && left.value === "arguments" && (m === "callee" || m === "caller")) { |
|
3300 |
if (option.noarg) |
|
3301 |
warning("Avoid arguments.{a}.", left, m); |
|
3302 |
else if (directive["use strict"]) |
|
3303 |
error("Strict violation."); |
|
3304 |
} else if (!option.evil && left && left.value === "document" && |
|
3305 |
(m === "write" || m === "writeln")) { |
|
3306 |
warning("document.write can be a form of eval.", left); |
|
3307 |
} |
|
3308 |
if (!option.evil && (m === "eval" || m === "execScript")) { |
|
3309 |
warning("eval is evil."); |
|
3310 |
} |
|
3311 |
return that; |
|
3312 |
}, 160, true); |
|
3313 |
|
|
3314 |
infix("(", function (left, that) { |
|
3315 |
if (prevtoken.id !== "}" && prevtoken.id !== ")") { |
|
3316 |
nobreak(prevtoken, token); |
|
3317 |
} |
|
3318 |
nospace(); |
|
3319 |
if (option.immed && !left.immed && left.id === "function") { |
|
3320 |
warning("Wrap an immediate function invocation in parentheses " + |
|
3321 |
"to assist the reader in understanding that the expression " + |
|
3322 |
"is the result of a function, and not the function itself."); |
|
3323 |
} |
|
3324 |
var n = 0, |
|
3325 |
p = []; |
|
3326 |
if (left) { |
|
3327 |
if (left.type === "(identifier)") { |
|
3328 |
if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) { |
|
3329 |
if ("Number String Boolean Date Object".indexOf(left.value) === -1) { |
|
3330 |
if (left.value === "Math") { |
|
3331 |
warning("Math is not a function.", left); |
|
3332 |
} else if (option.newcap) { |
|
3333 |
warning("Missing 'new' prefix when invoking a constructor.", left); |
|
3334 |
} |
|
3335 |
} |
|
3336 |
} |
|
3337 |
} |
|
3338 |
} |
|
3339 |
if (nexttoken.id !== ")") { |
|
3340 |
for (;;) { |
|
3341 |
p[p.length] = expression(10); |
|
3342 |
n += 1; |
|
3343 |
if (nexttoken.id !== ",") { |
|
3344 |
break; |
|
3345 |
} |
|
3346 |
comma(); |
|
3347 |
} |
|
3348 |
} |
|
3349 |
advance(")"); |
|
3350 |
nospace(prevtoken, token); |
|
3351 |
if (typeof left === "object") { |
|
3352 |
if (left.value === "parseInt" && n === 1) { |
|
3353 |
warning("Missing radix parameter.", token); |
|
3354 |
} |
|
3355 |
if (!option.evil) { |
|
3356 |
if (left.value === "eval" || left.value === "Function" || |
|
3357 |
left.value === "execScript") { |
|
3358 |
warning("eval is evil.", left); |
|
3359 |
|
|
3360 |
if (p[0] && [0].id === "(string)") { |
|
3361 |
addInternalSrc(left, p[0].value); |
|
3362 |
} |
|
3363 |
} else if (p[0] && p[0].id === "(string)" && |
|
3364 |
(left.value === "setTimeout" || |
|
3365 |
left.value === "setInterval")) { |
|
3366 |
warning( |
|
3367 |
"Implied eval is evil. Pass a function instead of a string.", left); |
|
3368 |
addInternalSrc(left, p[0].value); |
|
3369 |
|
|
3370 |
// window.setTimeout/setInterval |
|
3371 |
} else if (p[0] && p[0].id === "(string)" && |
|
3372 |
left.value === "." && |
|
3373 |
left.left.value === "window" && |
|
3374 |
(left.right === "setTimeout" || |
|
3375 |
left.right === "setInterval")) { |
|
3376 |
warning( |
|
3377 |
"Implied eval is evil. Pass a function instead of a string.", left); |
|
3378 |
addInternalSrc(left, p[0].value); |
|
3379 |
} |
|
3380 |
} |
|
3381 |
if (!left.identifier && left.id !== "." && left.id !== "[" && |
|
3382 |
left.id !== "(" && left.id !== "&&" && left.id !== "||" && |
|
3383 |
left.id !== "?") { |
|
3384 |
warning("Bad invocation.", left); |
|
3385 |
} |
|
3386 |
} |
|
3387 |
that.left = left; |
|
3388 |
return that; |
|
3389 |
}, 155, true).exps = true; |
|
3390 |
|
|
3391 |
prefix("(", function () { |
|
3392 |
nospace(); |
|
3393 |
if (nexttoken.id === "function") { |
|
3394 |
nexttoken.immed = true; |
|
3395 |
} |
|
3396 |
var v = expression(0); |
|
3397 |
advance(")", this); |
|
3398 |
nospace(prevtoken, token); |
|
3399 |
if (option.immed && v.id === "function") { |
|
3400 |
if (nexttoken.id !== "(" && |
|
3401 |
(nexttoken.id !== "." || (peek().value !== "call" && peek().value !== "apply"))) { |
|
3402 |
warning( |
|
3403 |
"Do not wrap function literals in parens unless they are to be immediately invoked.", |
|
3404 |
this); |
|
3405 |
} |
|
3406 |
} |
|
3407 |
|
|
3408 |
return v; |
|
3409 |
}); |
|
3410 |
|
|
3411 |
infix("[", function (left, that) { |
|
3412 |
nobreak(prevtoken, token); |
|
3413 |
nospace(); |
|
3414 |
var e = expression(0), s; |
|
3415 |
if (e && e.type === "(string)") { |
|
3416 |
if (!option.evil && (e.value === "eval" || e.value === "execScript")) { |
|
3417 |
warning("eval is evil.", that); |
|
3418 |
} |
|
3419 |
countMember(e.value); |
|
3420 |
if (!option.sub && ix.test(e.value)) { |
|
3421 |
s = syntax[e.value]; |
|
3422 |
if (!s || !s.reserved) { |
|
3423 |
warning("['{a}'] is better written in dot notation.", |
|
3424 |
prevtoken, e.value); |
|
3425 |
} |
|
3426 |
} |
|
3427 |
} |
|
3428 |
advance("]", that); |
|
3429 |
nospace(prevtoken, token); |
|
3430 |
that.left = left; |
|
3431 |
that.right = e; |
|
3432 |
return that; |
|
3433 |
}, 160, true); |
|
3434 |
|
|
3435 |
prefix("[", function () { |
|
3436 |
var b = token.line !== nexttoken.line; |
|
3437 |
this.first = []; |
|
3438 |
if (b) { |
|
3439 |
indent += option.indent; |
|
3440 |
if (nexttoken.from === indent + option.indent) { |
|
3441 |
indent += option.indent; |
|
3442 |
} |
|
3443 |
} |
|
3444 |
while (nexttoken.id !== "(end)") { |
|
3445 |
while (nexttoken.id === ",") { |
|
3446 |
if (!option.es5) |
|
3447 |
warning("Extra comma."); |
|
3448 |
advance(","); |
|
3449 |
} |
|
3450 |
if (nexttoken.id === "]") { |
|
3451 |
break; |
|
3452 |
} |
|
3453 |
if (b && token.line !== nexttoken.line) { |
|
3454 |
indentation(); |
|
3455 |
} |
|
3456 |
this.first.push(expression(10)); |
|
3457 |
if (nexttoken.id === ",") { |
|
3458 |
comma(); |
|
3459 |
if (nexttoken.id === "]" && !option.es5) { |
|
3460 |
warning("Extra comma.", token); |
|
3461 |
break; |
|
3462 |
} |
|
3463 |
} else { |
|
3464 |
break; |
|
3465 |
} |
|
3466 |
} |
|
3467 |
if (b) { |
|
3468 |
indent -= option.indent; |
|
3469 |
indentation(); |
|
3470 |
} |
|
3471 |
advance("]", this); |
|
3472 |
return this; |
|
3473 |
}, 160); |
|
3474 |
|
|
3475 |
|
|
3476 |
function property_name() { |
|
3477 |
var id = optionalidentifier(true); |
|
3478 |
if (!id) { |
|
3479 |
if (nexttoken.id === "(string)") { |
|
3480 |
id = nexttoken.value; |
|
3481 |
advance(); |
|
3482 |
} else if (nexttoken.id === "(number)") { |
|
3483 |
id = nexttoken.value.toString(); |
|
3484 |
advance(); |
|
3485 |
} |
|
3486 |
} |
|
3487 |
return id; |
|
3488 |
} |
|
3489 |
|
|
3490 |
|
|
3491 |
function functionparams() { |
|
3492 |
var next = nexttoken; |
|
3493 |
var params = []; |
|
3494 |
var ident; |
|
3495 |
|
|
3496 |
advance("("); |
|
3497 |
nospace(); |
|
3498 |
|
|
3499 |
if (nexttoken.id === ")") { |
|
3500 |
advance(")"); |
|
3501 |
return; |
|
3502 |
} |
|
3503 |
|
|
3504 |
for (;;) { |
|
3505 |
ident = identifier(true); |
|
3506 |
params.push(ident); |
|
3507 |
addlabel(ident, "unused", token); |
|
3508 |
if (nexttoken.id === ",") { |
|
3509 |
comma(); |
|
3510 |
} else { |
|
3511 |
advance(")", next); |
|
3512 |
nospace(prevtoken, token); |
|
3513 |
return params; |
|
3514 |
} |
|
3515 |
} |
|
3516 |
} |
|
3517 |
|
|
3518 |
|
|
3519 |
function doFunction(name, statement) { |
|
3520 |
var f; |
|
3521 |
var oldOption = option; |
|
3522 |
var oldScope = scope; |
|
3523 |
|
|
3524 |
option = Object.create(option); |
|
3525 |
scope = Object.create(scope); |
|
3526 |
|
|
3527 |
funct = { |
|
3528 |
"(name)" : name || "\"" + anonname + "\"", |
|
3529 |
"(line)" : nexttoken.line, |
|
3530 |
"(character)": nexttoken.character, |
|
3531 |
"(context)" : funct, |
|
3532 |
"(breakage)" : 0, |
|
3533 |
"(loopage)" : 0, |
|
3534 |
"(metrics)" : createMetrics(nexttoken), |
|
3535 |
"(scope)" : scope, |
|
3536 |
"(statement)": statement, |
|
3537 |
"(tokens)" : {} |
|
3538 |
}; |
|
3539 |
|
|
3540 |
f = funct; |
|
3541 |
token.funct = funct; |
|
3542 |
|
|
3543 |
functions.push(funct); |
|
3544 |
|
|
3545 |
if (name) { |
|
3546 |
addlabel(name, "function"); |
|
3547 |
} |
|
3548 |
|
|
3549 |
funct["(params)"] = functionparams(); |
|
3550 |
funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]); |
|
3551 |
|
|
3552 |
block(false, false, true); |
|
3553 |
|
|
3554 |
funct["(metrics)"].verifyMaxStatementsPerFunction(); |
|
3555 |
funct["(metrics)"].verifyMaxComplexityPerFunction(); |
|
3556 |
|
|
3557 |
scope = oldScope; |
|
3558 |
option = oldOption; |
|
3559 |
funct["(last)"] = token.line; |
|
3560 |
funct["(lastcharacter)"] = token.character; |
|
3561 |
funct = funct["(context)"]; |
|
3562 |
|
|
3563 |
return f; |
|
3564 |
} |
|
3565 |
|
|
3566 |
function createMetrics(functionStartToken) { |
|
3567 |
return { |
|
3568 |
statementCount: 0, |
|
3569 |
nestedBlockDepth: -1, |
|
3570 |
ComplexityCount: 1, |
|
3571 |
verifyMaxStatementsPerFunction: function () { |
|
3572 |
if (option.maxstatements && |
|
3573 |
this.statementCount > option.maxstatements) { |
|
3574 |
var message = "Too many statements per function (" + this.statementCount + ")."; |
|
3575 |
warning(message, functionStartToken); |
|
3576 |
} |
|
3577 |
}, |
|
3578 |
|
|
3579 |
verifyMaxParametersPerFunction: function (params) { |
|
3580 |
params = params || []; |
|
3581 |
|
|
3582 |
if (option.maxparams && params.length > option.maxparams) { |
|
3583 |
var message = "Too many parameters per function (" + params.length + ")."; |
|
3584 |
warning(message, functionStartToken); |
|
3585 |
} |
|
3586 |
}, |
|
3587 |
|
|
3588 |
verifyMaxNestedBlockDepthPerFunction: function () { |
|
3589 |
if (option.maxdepth && |
|
3590 |
this.nestedBlockDepth > 0 && |
|
3591 |
this.nestedBlockDepth === option.maxdepth + 1) { |
|
3592 |
var message = "Blocks are nested too deeply (" + this.nestedBlockDepth + ")."; |
|
3593 |
warning(message); |
|
3594 |
} |
|
3595 |
}, |
|
3596 |
|
|
3597 |
verifyMaxComplexityPerFunction: function () { |
|
3598 |
var max = option.maxcomplexity; |
|
3599 |
var cc = this.ComplexityCount; |
|
3600 |
if (max && cc > max) { |
|
3601 |
var message = "Cyclomatic complexity is too high per function (" + cc + ")."; |
|
3602 |
warning(message, functionStartToken); |
|
3603 |
} |
|
3604 |
} |
|
3605 |
}; |
|
3606 |
} |
|
3607 |
|
|
3608 |
function increaseComplexityCount() { |
|
3609 |
funct["(metrics)"].ComplexityCount += 1; |
|
3610 |
} |
|
3611 |
|
|
3612 |
|
|
3613 |
(function (x) { |
|
3614 |
x.nud = function () { |
|
3615 |
var b, f, i, p, t; |
|
3616 |
var props = {}; // All properties, including accessors |
|
3617 |
|
|
3618 |
function saveProperty(name, token) { |
|
3619 |
if (props[name] && is_own(props, name)) |
|
3620 |
warning("Duplicate member '{a}'.", nexttoken, i); |
|
3621 |
else |
|
3622 |
props[name] = {}; |
|
3623 |
|
|
3624 |
props[name].basic = true; |
|
3625 |
props[name].basicToken = token; |
|
3626 |
} |
|
3627 |
|
|
3628 |
function saveSetter(name, token) { |
|
3629 |
if (props[name] && is_own(props, name)) { |
|
3630 |
if (props[name].basic || props[name].setter) |
|
3631 |
warning("Duplicate member '{a}'.", nexttoken, i); |
|
3632 |
} else { |
|
3633 |
props[name] = {}; |
|
3634 |
} |
|
3635 |
|
|
3636 |
props[name].setter = true; |
|
3637 |
props[name].setterToken = token; |
|
3638 |
} |
|
3639 |
|
|
3640 |
function saveGetter(name) { |
|
3641 |
if (props[name] && is_own(props, name)) { |
|
3642 |
if (props[name].basic || props[name].getter) |
|
3643 |
warning("Duplicate member '{a}'.", nexttoken, i); |
|
3644 |
} else { |
|
3645 |
props[name] = {}; |
|
3646 |
} |
|
3647 |
|
|
3648 |
props[name].getter = true; |
|
3649 |
props[name].getterToken = token; |
|
3650 |
} |
|
3651 |
|
|
3652 |
b = token.line !== nexttoken.line; |
|
3653 |
if (b) { |
|
3654 |
indent += option.indent; |
|
3655 |
if (nexttoken.from === indent + option.indent) { |
|
3656 |
indent += option.indent; |
|
3657 |
} |
|
3658 |
} |
|
3659 |
for (;;) { |
|
3660 |
if (nexttoken.id === "}") { |
|
3661 |
break; |
|
3662 |
} |
|
3663 |
if (b) { |
|
3664 |
indentation(); |
|
3665 |
} |
|
3666 |
if (nexttoken.value === "get" && peek().id !== ":") { |
|
3667 |
advance("get"); |
|
3668 |
if (!option.es5) { |
|
3669 |
error("get/set are ES5 features."); |
|
3670 |
} |
|
3671 |
i = property_name(); |
|
3672 |
if (!i) { |
|
3673 |
error("Missing property name."); |
|
3674 |
} |
|
3675 |
saveGetter(i); |
|
3676 |
t = nexttoken; |
|
3677 |
adjacent(token, nexttoken); |
|
3678 |
f = doFunction(); |
|
3679 |
p = f["(params)"]; |
|
3680 |
if (p) { |
|
3681 |
warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i); |
|
3682 |
} |
|
3683 |
adjacent(token, nexttoken); |
|
3684 |
} else if (nexttoken.value === "set" && peek().id !== ":") { |
|
3685 |
advance("set"); |
|
3686 |
if (!option.es5) { |
|
3687 |
error("get/set are ES5 features."); |
|
3688 |
} |
|
3689 |
i = property_name(); |
|
3690 |
if (!i) { |
|
3691 |
error("Missing property name."); |
|
3692 |
} |
|
3693 |
saveSetter(i, nexttoken); |
|
3694 |
t = nexttoken; |
|
3695 |
adjacent(token, nexttoken); |
|
3696 |
f = doFunction(); |
|
3697 |
p = f["(params)"]; |
|
3698 |
if (!p || p.length !== 1) { |
|
3699 |
warning("Expected a single parameter in set {a} function.", t, i); |
|
3700 |
} |
|
3701 |
} else { |
|
3702 |
i = property_name(); |
|
3703 |
saveProperty(i, nexttoken); |
|
3704 |
if (typeof i !== "string") { |
|
3705 |
break; |
|
3706 |
} |
|
3707 |
advance(":"); |
|
3708 |
nonadjacent(token, nexttoken); |
|
3709 |
expression(10); |
|
3710 |
} |
|
3711 |
|
|
3712 |
countMember(i); |
|
3713 |
if (nexttoken.id === ",") { |
|
3714 |
comma(); |
|
3715 |
if (nexttoken.id === ",") { |
|
3716 |
warning("Extra comma.", token); |
|
3717 |
} else if (nexttoken.id === "}" && !option.es5) { |
|
3718 |
warning("Extra comma.", token); |
|
3719 |
} |
|
3720 |
} else { |
|
3721 |
break; |
|
3722 |
} |
|
3723 |
} |
|
3724 |
if (b) { |
|
3725 |
indent -= option.indent; |
|
3726 |
indentation(); |
|
3727 |
} |
|
3728 |
advance("}", this); |
|
3729 |
|
|
3730 |
// Check for lonely setters if in the ES5 mode. |
|
3731 |
if (option.es5) { |
|
3732 |
for (var name in props) { |
|
3733 |
if (is_own(props, name) && props[name].setter && !props[name].getter) { |
|
3734 |
warning("Setter is defined without getter.", props[name].setterToken); |
|
3735 |
} |
|
3736 |
} |
|
3737 |
} |
|
3738 |
return this; |
|
3739 |
}; |
|
3740 |
x.fud = function () { |
|
3741 |
error("Expected to see a statement and instead saw a block.", token); |
|
3742 |
}; |
|
3743 |
}(delim("{"))); |
|
3744 |
|
|
3745 |
// This Function is called when esnext option is set to true |
|
3746 |
// it adds the `const` statement to JSHINT |
|
3747 |
|
|
3748 |
useESNextSyntax = function () { |
|
3749 |
var conststatement = stmt("const", function (prefix) { |
|
3750 |
var id, name, value; |
|
3751 |
|
|
3752 |
this.first = []; |
|
3753 |
for (;;) { |
|
3754 |
nonadjacent(token, nexttoken); |
|
3755 |
id = identifier(); |
|
3756 |
if (funct[id] === "const") { |
|
3757 |
warning("const '" + id + "' has already been declared"); |
|
3758 |
} |
|
3759 |
if (funct["(global)"] && predefined[id] === false) { |
|
3760 |
warning("Redefinition of '{a}'.", token, id); |
|
3761 |
} |
|
3762 |
addlabel(id, "const"); |
|
3763 |
if (prefix) { |
|
3764 |
break; |
|
3765 |
} |
|
3766 |
name = token; |
|
3767 |
this.first.push(token); |
|
3768 |
|
|
3769 |
if (nexttoken.id !== "=") { |
|
3770 |
warning("const " + |
|
3771 |
"'{a}' is initialized to 'undefined'.", token, id); |
|
3772 |
} |
|
3773 |
|
|
3774 |
if (nexttoken.id === "=") { |
|
3775 |
nonadjacent(token, nexttoken); |
|
3776 |
advance("="); |
|
3777 |
nonadjacent(token, nexttoken); |
|
3778 |
if (nexttoken.id === "undefined") { |
|
3779 |
warning("It is not necessary to initialize " + |
|
3780 |
"'{a}' to 'undefined'.", token, id); |
|
3781 |
} |
|
3782 |
if (peek(0).id === "=" && nexttoken.identifier) { |
|
3783 |
error("Constant {a} was not declared correctly.", |
|
3784 |
nexttoken, nexttoken.value); |
|
3785 |
} |
|
3786 |
value = expression(0); |
|
3787 |
name.first = value; |
|
3788 |
} |
|
3789 |
|
|
3790 |
if (nexttoken.id !== ",") { |
|
3791 |
break; |
|
3792 |
} |
|
3793 |
comma(); |
|
3794 |
} |
|
3795 |
return this; |
|
3796 |
}); |
|
3797 |
conststatement.exps = true; |
|
3798 |
}; |
|
3799 |
|
|
3800 |
var varstatement = stmt("var", function (prefix) { |
|
3801 |
// JavaScript does not have block scope. It only has function scope. So, |
|
3802 |
// declaring a variable in a block can have unexpected consequences. |
|
3803 |
var id, name, value; |
|
3804 |
|
|
3805 |
if (funct["(onevar)"] && option.onevar) { |
|
3806 |
warning("Too many var statements."); |
|
3807 |
} else if (!funct["(global)"]) { |
|
3808 |
funct["(onevar)"] = true; |
|
3809 |
} |
|
3810 |
|
|
3811 |
this.first = []; |
|
3812 |
|
|
3813 |
for (;;) { |
|
3814 |
nonadjacent(token, nexttoken); |
|
3815 |
id = identifier(); |
|
3816 |
|
|
3817 |
if (option.esnext && funct[id] === "const") { |
|
3818 |
warning("const '" + id + "' has already been declared"); |
|
3819 |
} |
|
3820 |
|
|
3821 |
if (funct["(global)"] && predefined[id] === false) { |
|
3822 |
warning("Redefinition of '{a}'.", token, id); |
|
3823 |
} |
|
3824 |
|
|
3825 |
addlabel(id, "unused", token); |
|
3826 |
|
|
3827 |
if (prefix) { |
|
3828 |
break; |
|
3829 |
} |
|
3830 |
|
|
3831 |
name = token; |
|
3832 |
this.first.push(token); |
|
3833 |
|
|
3834 |
if (nexttoken.id === "=") { |
|
3835 |
nonadjacent(token, nexttoken); |
|
3836 |
advance("="); |
|
3837 |
nonadjacent(token, nexttoken); |
|
3838 |
if (nexttoken.id === "undefined") { |
|
3839 |
warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id); |
|
3840 |
} |
|
3841 |
if (peek(0).id === "=" && nexttoken.identifier) { |
|
3842 |
error("Variable {a} was not declared correctly.", |
|
3843 |
nexttoken, nexttoken.value); |
|
3844 |
} |
|
3845 |
value = expression(0); |
|
3846 |
name.first = value; |
|
3847 |
} |
|
3848 |
if (nexttoken.id !== ",") { |
|
3849 |
break; |
|
3850 |
} |
|
3851 |
comma(); |
|
3852 |
} |
|
3853 |
return this; |
|
3854 |
}); |
|
3855 |
varstatement.exps = true; |
|
3856 |
|
|
3857 |
blockstmt("function", function () { |
|
3858 |
if (inblock) { |
|
3859 |
warning("Function declarations should not be placed in blocks. " + |
|
3860 |
"Use a function expression or move the statement to the top of " + |
|
3861 |
"the outer function.", token); |
|
3862 |
|
|
3863 |
} |
|
3864 |
var i = identifier(); |
|
3865 |
if (option.esnext && funct[i] === "const") { |
|
3866 |
warning("const '" + i + "' has already been declared"); |
|
3867 |
} |
|
3868 |
adjacent(token, nexttoken); |
|
3869 |
addlabel(i, "unction", token); |
|
3870 |
|
|
3871 |
doFunction(i, { statement: true }); |
|
3872 |
if (nexttoken.id === "(" && nexttoken.line === token.line) { |
|
3873 |
error( |
|
3874 |
"Function declarations are not invocable. Wrap the whole function invocation in parens."); |
|
3875 |
} |
|
3876 |
return this; |
|
3877 |
}); |
|
3878 |
|
|
3879 |
prefix("function", function () { |
|
3880 |
var i = optionalidentifier(); |
|
3881 |
if (i) { |
|
3882 |
adjacent(token, nexttoken); |
|
3883 |
} else { |
|
3884 |
nonadjacent(token, nexttoken); |
|
3885 |
} |
|
3886 |
doFunction(i); |
|
3887 |
if (!option.loopfunc && funct["(loopage)"]) { |
|
3888 |
warning("Don't make functions within a loop."); |
|
3889 |
} |
|
3890 |
return this; |
|
3891 |
}); |
|
3892 |
|
|
3893 |
blockstmt("if", function () { |
|
3894 |
var t = nexttoken; |
|
3895 |
increaseComplexityCount(); |
|
3896 |
advance("("); |
|
3897 |
nonadjacent(this, t); |
|
3898 |
nospace(); |
|
3899 |
expression(20); |
|
3900 |
if (nexttoken.id === "=") { |
|
3901 |
if (!option.boss) |
|
3902 |
warning("Expected a conditional expression and instead saw an assignment."); |
|
3903 |
advance("="); |
|
3904 |
expression(20); |
|
3905 |
} |
|
3906 |
advance(")", t); |
|
3907 |
nospace(prevtoken, token); |
|
3908 |
block(true, true); |
|
3909 |
if (nexttoken.id === "else") { |
|
3910 |
nonadjacent(token, nexttoken); |
|
3911 |
advance("else"); |
|
3912 |
if (nexttoken.id === "if" || nexttoken.id === "switch") { |
|
3913 |
statement(true); |
|
3914 |
} else { |
|
3915 |
block(true, true); |
|
3916 |
} |
|
3917 |
} |
|
3918 |
return this; |
|
3919 |
}); |
|
3920 |
|
|
3921 |
blockstmt("try", function () { |
|
3922 |
var b; |
|
3923 |
|
|
3924 |
function doCatch() { |
|
3925 |
var oldScope = scope; |
|
3926 |
var e; |
|
3927 |
|
|
3928 |
advance("catch"); |
|
3929 |
nonadjacent(token, nexttoken); |
|
3930 |
advance("("); |
|
3931 |
|
|
3932 |
scope = Object.create(oldScope); |
|
3933 |
|
|
3934 |
e = nexttoken.value; |
|
3935 |
if (nexttoken.type !== "(identifier)") { |
|
3936 |
e = null; |
|
3937 |
warning("Expected an identifier and instead saw '{a}'.", nexttoken, e); |
|
3938 |
} |
|
3939 |
|
|
3940 |
advance(); |
|
3941 |
advance(")"); |
|
3942 |
|
|
3943 |
funct = { |
|
3944 |
"(name)" : "(catch)", |
|
3945 |
"(line)" : nexttoken.line, |
|
3946 |
"(character)": nexttoken.character, |
|
3947 |
"(context)" : funct, |
|
3948 |
"(breakage)" : funct["(breakage)"], |
|
3949 |
"(loopage)" : funct["(loopage)"], |
|
3950 |
"(scope)" : scope, |
|
3951 |
"(statement)": false, |
|
3952 |
"(metrics)" : createMetrics(nexttoken), |
|
3953 |
"(catch)" : true, |
|
3954 |
"(tokens)" : {} |
|
3955 |
}; |
|
3956 |
|
|
3957 |
if (e) { |
|
3958 |
addlabel(e, "exception"); |
|
3959 |
} |
|
3960 |
|
|
3961 |
token.funct = funct; |
|
3962 |
functions.push(funct); |
|
3963 |
|
|
3964 |
block(false); |
|
3965 |
|
|
3966 |
scope = oldScope; |
|
3967 |
|
|
3968 |
funct["(last)"] = token.line; |
|
3969 |
funct["(lastcharacter)"] = token.character; |
|
3970 |
funct = funct["(context)"]; |
|
3971 |
} |
|
3972 |
|
|
3973 |
block(false); |
|
3974 |
|
|
3975 |
if (nexttoken.id === "catch") { |
|
3976 |
increaseComplexityCount(); |
|
3977 |
doCatch(); |
|
3978 |
b = true; |
|
3979 |
} |
|
3980 |
|
|
3981 |
if (nexttoken.id === "finally") { |
|
3982 |
advance("finally"); |
|
3983 |
block(false); |
|
3984 |
return; |
|
3985 |
} else if (!b) { |
|
3986 |
error("Expected '{a}' and instead saw '{b}'.", |
|
3987 |
nexttoken, "catch", nexttoken.value); |
|
3988 |
} |
|
3989 |
|
|
3990 |
return this; |
|
3991 |
}); |
|
3992 |
|
|
3993 |
blockstmt("while", function () { |
|
3994 |
var t = nexttoken; |
|
3995 |
funct["(breakage)"] += 1; |
|
3996 |
funct["(loopage)"] += 1; |
|
3997 |
increaseComplexityCount(); |
|
3998 |
advance("("); |
|
3999 |
nonadjacent(this, t); |
|
4000 |
nospace(); |
|
4001 |
expression(20); |
|
4002 |
if (nexttoken.id === "=") { |
|
4003 |
if (!option.boss) |
|
4004 |
warning("Expected a conditional expression and instead saw an assignment."); |
|
4005 |
advance("="); |
|
4006 |
expression(20); |
|
4007 |
} |
|
4008 |
advance(")", t); |
|
4009 |
nospace(prevtoken, token); |
|
4010 |
block(true, true); |
|
4011 |
funct["(breakage)"] -= 1; |
|
4012 |
funct["(loopage)"] -= 1; |
|
4013 |
return this; |
|
4014 |
}).labelled = true; |
|
4015 |
|
|
4016 |
blockstmt("with", function () { |
|
4017 |
var t = nexttoken; |
|
4018 |
if (directive["use strict"]) { |
|
4019 |
error("'with' is not allowed in strict mode.", token); |
|
4020 |
} else if (!option.withstmt) { |
|
4021 |
warning("Don't use 'with'.", token); |
|
4022 |
} |
|
4023 |
|
|
4024 |
advance("("); |
|
4025 |
nonadjacent(this, t); |
|
4026 |
nospace(); |
|
4027 |
expression(0); |
|
4028 |
advance(")", t); |
|
4029 |
nospace(prevtoken, token); |
|
4030 |
block(true, true); |
|
4031 |
|
|
4032 |
return this; |
|
4033 |
}); |
|
4034 |
|
|
4035 |
blockstmt("switch", function () { |
|
4036 |
var t = nexttoken, |
|
4037 |
g = false; |
|
4038 |
funct["(breakage)"] += 1; |
|
4039 |
advance("("); |
|
4040 |
nonadjacent(this, t); |
|
4041 |
nospace(); |
|
4042 |
this.condition = expression(20); |
|
4043 |
advance(")", t); |
|
4044 |
nospace(prevtoken, token); |
|
4045 |
nonadjacent(token, nexttoken); |
|
4046 |
t = nexttoken; |
|
4047 |
advance("{"); |
|
4048 |
nonadjacent(token, nexttoken); |
|
4049 |
indent += option.indent; |
|
4050 |
this.cases = []; |
|
4051 |
for (;;) { |
|
4052 |
switch (nexttoken.id) { |
|
4053 |
case "case": |
|
4054 |
switch (funct["(verb)"]) { |
|
4055 |
case "break": |
|
4056 |
case "case": |
|
4057 |
case "continue": |
|
4058 |
case "return": |
|
4059 |
case "switch": |
|
4060 |
case "throw": |
|
4061 |
break; |
|
4062 |
default: |
|
4063 |
// You can tell JSHint that you don't use break intentionally by |
|
4064 |
// adding a comment /* falls through */ on a line just before |
|
4065 |
// the next `case`. |
|
4066 |
if (!ft.test(lines[nexttoken.line - 2])) { |
|
4067 |
warning( |
|
4068 |
"Expected a 'break' statement before 'case'.", |
|
4069 |
token); |
|
4070 |
} |
|
4071 |
} |
|
4072 |
indentation(-option.indent); |
|
4073 |
advance("case"); |
|
4074 |
this.cases.push(expression(20)); |
|
4075 |
increaseComplexityCount(); |
|
4076 |
g = true; |
|
4077 |
advance(":"); |
|
4078 |
funct["(verb)"] = "case"; |
|
4079 |
break; |
|
4080 |
case "default": |
|
4081 |
switch (funct["(verb)"]) { |
|
4082 |
case "break": |
|
4083 |
case "continue": |
|
4084 |
case "return": |
|
4085 |
case "throw": |
|
4086 |
break; |
|
4087 |
default: |
|
4088 |
if (!ft.test(lines[nexttoken.line - 2])) { |
|
4089 |
warning( |
|
4090 |
"Expected a 'break' statement before 'default'.", |
|
4091 |
token); |
|
4092 |
} |
|
4093 |
} |
|
4094 |
indentation(-option.indent); |
|
4095 |
advance("default"); |
|
4096 |
g = true; |
|
4097 |
advance(":"); |
|
4098 |
break; |
|
4099 |
case "}": |
|
4100 |
indent -= option.indent; |
|
4101 |
indentation(); |
|
4102 |
advance("}", t); |
|
4103 |
if (this.cases.length === 1 || this.condition.id === "true" || |
|
4104 |
this.condition.id === "false") { |
|
4105 |
if (!option.onecase) |
|
4106 |
warning("This 'switch' should be an 'if'.", this); |
|
4107 |
} |
|
4108 |
funct["(breakage)"] -= 1; |
|
4109 |
funct["(verb)"] = undefined; |
|
4110 |
return; |
|
4111 |
case "(end)": |
|
4112 |
error("Missing '{a}'.", nexttoken, "}"); |
|
4113 |
return; |
|
4114 |
default: |
|
4115 |
if (g) { |
|
4116 |
switch (token.id) { |
|
4117 |
case ",": |
|
4118 |
error("Each value should have its own case label."); |
|
4119 |
return; |
|
4120 |
case ":": |
|
4121 |
g = false; |
|
4122 |
statements(); |
|
4123 |
break; |
|
4124 |
default: |
|
4125 |
error("Missing ':' on a case clause.", token); |
|
4126 |
return; |
|
4127 |
} |
|
4128 |
} else { |
|
4129 |
if (token.id === ":") { |
|
4130 |
advance(":"); |
|
4131 |
error("Unexpected '{a}'.", token, ":"); |
|
4132 |
statements(); |
|
4133 |
} else { |
|
4134 |
error("Expected '{a}' and instead saw '{b}'.", |
|
4135 |
nexttoken, "case", nexttoken.value); |
|
4136 |
return; |
|
4137 |
} |
|
4138 |
} |
|
4139 |
} |
|
4140 |
} |
|
4141 |
}).labelled = true; |
|
4142 |
|
|
4143 |
stmt("debugger", function () { |
|
4144 |
if (!option.debug) { |
|
4145 |
warning("All 'debugger' statements should be removed."); |
|
4146 |
} |
|
4147 |
return this; |
|
4148 |
}).exps = true; |
|
4149 |
|
|
4150 |
(function () { |
|
4151 |
var x = stmt("do", function () { |
|
4152 |
funct["(breakage)"] += 1; |
|
4153 |
funct["(loopage)"] += 1; |
|
4154 |
increaseComplexityCount(); |
|
4155 |
|
|
4156 |
this.first = block(true); |
|
4157 |
advance("while"); |
|
4158 |
var t = nexttoken; |
|
4159 |
nonadjacent(token, t); |
|
4160 |
advance("("); |
|
4161 |
nospace(); |
|
4162 |
expression(20); |
|
4163 |
if (nexttoken.id === "=") { |
|
4164 |
if (!option.boss) |
|
4165 |
warning("Expected a conditional expression and instead saw an assignment."); |
|
4166 |
advance("="); |
|
4167 |
expression(20); |
|
4168 |
} |
|
4169 |
advance(")", t); |
|
4170 |
nospace(prevtoken, token); |
|
4171 |
funct["(breakage)"] -= 1; |
|
4172 |
funct["(loopage)"] -= 1; |
|
4173 |
return this; |
|
4174 |
}); |
|
4175 |
x.labelled = true; |
|
4176 |
x.exps = true; |
|
4177 |
}()); |
|
4178 |
|
|
4179 |
blockstmt("for", function () { |
|
4180 |
var s, t = nexttoken; |
|
4181 |
funct["(breakage)"] += 1; |
|
4182 |
funct["(loopage)"] += 1; |
|
4183 |
increaseComplexityCount(); |
|
4184 |
advance("("); |
|
4185 |
nonadjacent(this, t); |
|
4186 |
nospace(); |
|
4187 |
if (peek(nexttoken.id === "var" ? 1 : 0).id === "in") { |
|
4188 |
if (nexttoken.id === "var") { |
|
4189 |
advance("var"); |
|
4190 |
varstatement.fud.call(varstatement, true); |
|
4191 |
} else { |
|
4192 |
switch (funct[nexttoken.value]) { |
|
4193 |
case "unused": |
|
4194 |
funct[nexttoken.value] = "var"; |
|
4195 |
break; |
|
4196 |
case "var": |
|
4197 |
break; |
|
4198 |
default: |
|
4199 |
warning("Bad for in variable '{a}'.", |
|
4200 |
nexttoken, nexttoken.value); |
|
4201 |
} |
|
4202 |
advance(); |
|
4203 |
} |
|
4204 |
advance("in"); |
|
4205 |
expression(20); |
|
4206 |
advance(")", t); |
|
4207 |
s = block(true, true); |
|
4208 |
if (option.forin && s && (s.length > 1 || typeof s[0] !== "object" || |
|
4209 |
s[0].value !== "if")) { |
|
4210 |
warning("The body of a for in should be wrapped in an if statement to filter " + |
|
4211 |
"unwanted properties from the prototype.", this); |
|
4212 |
} |
|
4213 |
funct["(breakage)"] -= 1; |
|
4214 |
funct["(loopage)"] -= 1; |
|
4215 |
return this; |
|
4216 |
} else { |
|
4217 |
if (nexttoken.id !== ";") { |
|
4218 |
if (nexttoken.id === "var") { |
|
4219 |
advance("var"); |
|
4220 |
varstatement.fud.call(varstatement); |
|
4221 |
} else { |
|
4222 |
for (;;) { |
|
4223 |
expression(0, "for"); |
|
4224 |
if (nexttoken.id !== ",") { |
|
4225 |
break; |
|
4226 |
} |
|
4227 |
comma(); |
|
4228 |
} |
|
4229 |
} |
|
4230 |
} |
|
4231 |
nolinebreak(token); |
|
4232 |
advance(";"); |
|
4233 |
if (nexttoken.id !== ";") { |
|
4234 |
expression(20); |
|
4235 |
if (nexttoken.id === "=") { |
|
4236 |
if (!option.boss) |
|
4237 |
warning("Expected a conditional expression and instead saw an assignment."); |
|
4238 |
advance("="); |
|
4239 |
expression(20); |
|
4240 |
} |
|
4241 |
} |
|
4242 |
nolinebreak(token); |
|
4243 |
advance(";"); |
|
4244 |
if (nexttoken.id === ";") { |
|
4245 |
error("Expected '{a}' and instead saw '{b}'.", |
|
4246 |
nexttoken, ")", ";"); |
|
4247 |
} |
|
4248 |
if (nexttoken.id !== ")") { |
|
4249 |
for (;;) { |
|
4250 |
expression(0, "for"); |
|
4251 |
if (nexttoken.id !== ",") { |
|
4252 |
break; |
|
4253 |
} |
|
4254 |
comma(); |
|
4255 |
} |
|
4256 |
} |
|
4257 |
advance(")", t); |
|
4258 |
nospace(prevtoken, token); |
|
4259 |
block(true, true); |
|
4260 |
funct["(breakage)"] -= 1; |
|
4261 |
funct["(loopage)"] -= 1; |
|
4262 |
return this; |
|
4263 |
} |
|
4264 |
}).labelled = true; |
|
4265 |
|
|
4266 |
|
|
4267 |
stmt("break", function () { |
|
4268 |
var v = nexttoken.value; |
|
4269 |
|
|
4270 |
if (funct["(breakage)"] === 0) |
|
4271 |
warning("Unexpected '{a}'.", nexttoken, this.value); |
|
4272 |
|
|
4273 |
if (!option.asi) |
|
4274 |
nolinebreak(this); |
|
4275 |
|
|
4276 |
if (nexttoken.id !== ";") { |
|
4277 |
if (token.line === nexttoken.line) { |
|
4278 |
if (funct[v] !== "label") { |
|
4279 |
warning("'{a}' is not a statement label.", nexttoken, v); |
|
4280 |
} else if (scope[v] !== funct) { |
|
4281 |
warning("'{a}' is out of scope.", nexttoken, v); |
|
4282 |
} |
|
4283 |
this.first = nexttoken; |
|
4284 |
advance(); |
|
4285 |
} |
|
4286 |
} |
|
4287 |
reachable("break"); |
|
4288 |
return this; |
|
4289 |
}).exps = true; |
|
4290 |
|
|
4291 |
|
|
4292 |
stmt("continue", function () { |
|
4293 |
var v = nexttoken.value; |
|
4294 |
|
|
4295 |
if (funct["(breakage)"] === 0) |
|
4296 |
warning("Unexpected '{a}'.", nexttoken, this.value); |
|
4297 |
|
|
4298 |
if (!option.asi) |
|
4299 |
nolinebreak(this); |
|
4300 |
|
|
4301 |
if (nexttoken.id !== ";") { |
|
4302 |
if (token.line === nexttoken.line) { |
|
4303 |
if (funct[v] !== "label") { |
|
4304 |
warning("'{a}' is not a statement label.", nexttoken, v); |
|
4305 |
} else if (scope[v] !== funct) { |
|
4306 |
warning("'{a}' is out of scope.", nexttoken, v); |
|
4307 |
} |
|
4308 |
this.first = nexttoken; |
|
4309 |
advance(); |
|
4310 |
} |
|
4311 |
} else if (!funct["(loopage)"]) { |
|
4312 |
warning("Unexpected '{a}'.", nexttoken, this.value); |
|
4313 |
} |
|
4314 |
reachable("continue"); |
|
4315 |
return this; |
|
4316 |
}).exps = true; |
|
4317 |
|
|
4318 |
|
|
4319 |
stmt("return", function () { |
|
4320 |
if (this.line === nexttoken.line) { |
|
4321 |
if (nexttoken.id === "(regexp)") |
|
4322 |
warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator."); |
|
4323 |
|
|
4324 |
if (nexttoken.id !== ";" && !nexttoken.reach) { |
|
4325 |
nonadjacent(token, nexttoken); |
|
4326 |
if (peek().value === "=" && !option.boss) { |
|
4327 |
warningAt("Did you mean to return a conditional instead of an assignment?", |
|
4328 |
token.line, token.character + 1); |
|
4329 |
} |
|
4330 |
this.first = expression(0); |
|
4331 |
} |
|
4332 |
} else if (!option.asi) { |
|
4333 |
nolinebreak(this); // always warn (Line breaking error) |
|
4334 |
} |
|
4335 |
reachable("return"); |
|
4336 |
return this; |
|
4337 |
}).exps = true; |
|
4338 |
|
|
4339 |
|
|
4340 |
stmt("throw", function () { |
|
4341 |
nolinebreak(this); |
|
4342 |
nonadjacent(token, nexttoken); |
|
4343 |
this.first = expression(20); |
|
4344 |
reachable("throw"); |
|
4345 |
return this; |
|
4346 |
}).exps = true; |
|
4347 |
|
|
4348 |
// Superfluous reserved words |
|
4349 |
|
|
4350 |
reserve("class"); |
|
4351 |
reserve("const"); |
|
4352 |
reserve("enum"); |
|
4353 |
reserve("export"); |
|
4354 |
reserve("extends"); |
|
4355 |
reserve("import"); |
|
4356 |
reserve("super"); |
|
4357 |
|
|
4358 |
reserve("let"); |
|
4359 |
reserve("yield"); |
|
4360 |
reserve("implements"); |
|
4361 |
reserve("interface"); |
|
4362 |
reserve("package"); |
|
4363 |
reserve("private"); |
|
4364 |
reserve("protected"); |
|
4365 |
reserve("public"); |
|
4366 |
reserve("static"); |
|
4367 |
|
|
4368 |
|
|
4369 |
// Parse JSON |
|
4370 |
|
|
4371 |
function jsonValue() { |
|
4372 |
|
|
4373 |
function jsonObject() { |
|
4374 |
var o = {}, t = nexttoken; |
|
4375 |
advance("{"); |
|
4376 |
if (nexttoken.id !== "}") { |
|
4377 |
for (;;) { |
|
4378 |
if (nexttoken.id === "(end)") { |
|
4379 |
error("Missing '}' to match '{' from line {a}.", |
|
4380 |
nexttoken, t.line); |
|
4381 |
} else if (nexttoken.id === "}") { |
|
4382 |
warning("Unexpected comma.", token); |
|
4383 |
break; |
|
4384 |
} else if (nexttoken.id === ",") { |
|
4385 |
error("Unexpected comma.", nexttoken); |
|
4386 |
} else if (nexttoken.id !== "(string)") { |
|
4387 |
warning("Expected a string and instead saw {a}.", |
|
4388 |
nexttoken, nexttoken.value); |
|
4389 |
} |
|
4390 |
if (o[nexttoken.value] === true) { |
|
4391 |
warning("Duplicate key '{a}'.", |
|
4392 |
nexttoken, nexttoken.value); |
|
4393 |
} else if ((nexttoken.value === "__proto__" && |
|
4394 |
!option.proto) || (nexttoken.value === "__iterator__" && |
|
4395 |
!option.iterator)) { |
|
4396 |
warning("The '{a}' key may produce unexpected results.", |
|
4397 |
nexttoken, nexttoken.value); |
|
4398 |
} else { |
|
4399 |
o[nexttoken.value] = true; |
|
4400 |
} |
|
4401 |
advance(); |
|
4402 |
advance(":"); |
|
4403 |
jsonValue(); |
|
4404 |
if (nexttoken.id !== ",") { |
|
4405 |
break; |
|
4406 |
} |
|
4407 |
advance(","); |
|
4408 |
} |
|
4409 |
} |
|
4410 |
advance("}"); |
|
4411 |
} |
|
4412 |
|
|
4413 |
function jsonArray() { |
|
4414 |
var t = nexttoken; |
|
4415 |
advance("["); |
|
4416 |
if (nexttoken.id !== "]") { |
|
4417 |
for (;;) { |
|
4418 |
if (nexttoken.id === "(end)") { |
|
4419 |
error("Missing ']' to match '[' from line {a}.", |
|
4420 |
nexttoken, t.line); |
|
4421 |
} else if (nexttoken.id === "]") { |
|
4422 |
warning("Unexpected comma.", token); |
|
4423 |
break; |
|
4424 |
} else if (nexttoken.id === ",") { |
|
4425 |
error("Unexpected comma.", nexttoken); |
|
4426 |
} |
|
4427 |
jsonValue(); |
|
4428 |
if (nexttoken.id !== ",") { |
|
4429 |
break; |
|
4430 |
} |
|
4431 |
advance(","); |
|
4432 |
} |
|
4433 |
} |
|
4434 |
advance("]"); |
|
4435 |
} |
|
4436 |
|
|
4437 |
switch (nexttoken.id) { |
|
4438 |
case "{": |
|
4439 |
jsonObject(); |
|
4440 |
break; |
|
4441 |
case "[": |
|
4442 |
jsonArray(); |
|
4443 |
break; |
|
4444 |
case "true": |
|
4445 |
case "false": |
|
4446 |
case "null": |
|
4447 |
case "(number)": |
|
4448 |
case "(string)": |
|
4449 |
advance(); |
|
4450 |
break; |
|
4451 |
case "-": |
|
4452 |
advance("-"); |
|
4453 |
if (token.character !== nexttoken.from) { |
|
4454 |
warning("Unexpected space after '-'.", token); |
|
4455 |
} |
|
4456 |
adjacent(token, nexttoken); |
|
4457 |
advance("(number)"); |
|
4458 |
break; |
|
4459 |
default: |
|
4460 |
error("Expected a JSON value.", nexttoken); |
|
4461 |
} |
|
4462 |
} |
|
4463 |
|
|
4464 |
|
|
4465 |
// The actual JSHINT function itself. |
|
4466 |
var itself = function (s, o, g) { |
|
4467 |
var a, i, k, x; |
|
4468 |
var optionKeys; |
|
4469 |
var newOptionObj = {}; |
|
4470 |
|
|
4471 |
if (o && o.scope) { |
|
4472 |
JSHINT.scope = o.scope; |
|
4473 |
} else { |
|
4474 |
JSHINT.errors = []; |
|
4475 |
JSHINT.undefs = []; |
|
4476 |
JSHINT.internals = []; |
|
4477 |
JSHINT.blacklist = {}; |
|
4478 |
JSHINT.scope = "(main)"; |
|
4479 |
} |
|
4480 |
|
|
4481 |
predefined = Object.create(standard); |
|
4482 |
declared = Object.create(null); |
|
4483 |
combine(predefined, g || {}); |
|
4484 |
|
|
4485 |
if (o) { |
|
4486 |
a = o.predef; |
|
4487 |
if (a) { |
|
4488 |
if (!Array.isArray(a) && typeof a === "object") { |
|
4489 |
a = Object.keys(a); |
|
4490 |
} |
|
4491 |
a.forEach(function (item) { |
|
4492 |
var slice; |
|
4493 |
if (item[0] === "-") { |
|
4494 |
slice = item.slice(1); |
|
4495 |
JSHINT.blacklist[slice] = slice; |
|
4496 |
} else { |
|
4497 |
predefined[item] = true; |
|
4498 |
} |
|
4499 |
}); |
|
4500 |
} |
|
4501 |
|
|
4502 |
optionKeys = Object.keys(o); |
|
4503 |
for (x = 0; x < optionKeys.length; x++) { |
|
4504 |
newOptionObj[optionKeys[x]] = o[optionKeys[x]]; |
|
4505 |
|
|
4506 |
if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false) |
|
4507 |
newOptionObj["(explicitNewcap)"] = true; |
|
4508 |
|
|
4509 |
if (optionKeys[x] === "indent") |
|
4510 |
newOptionObj.white = true; |
|
4511 |
} |
|
4512 |
} |
|
4513 |
|
|
4514 |
option = newOptionObj; |
|
4515 |
|
|
4516 |
option.indent = option.indent || 4; |
|
4517 |
option.maxerr = option.maxerr || 50; |
|
4518 |
|
|
4519 |
tab = ""; |
|
4520 |
for (i = 0; i < option.indent; i += 1) { |
|
4521 |
tab += " "; |
|
4522 |
} |
|
4523 |
indent = 1; |
|
4524 |
global = Object.create(predefined); |
|
4525 |
scope = global; |
|
4526 |
funct = { |
|
4527 |
"(global)": true, |
|
4528 |
"(name)": "(global)", |
|
4529 |
"(scope)": scope, |
|
4530 |
"(breakage)": 0, |
|
4531 |
"(loopage)": 0, |
|
4532 |
"(tokens)": {}, |
|
4533 |
"(metrics)": createMetrics(nexttoken) |
|
4534 |
}; |
|
4535 |
functions = [funct]; |
|
4536 |
urls = []; |
|
4537 |
stack = null; |
|
4538 |
member = {}; |
|
4539 |
membersOnly = null; |
|
4540 |
implied = {}; |
|
4541 |
inblock = false; |
|
4542 |
lookahead = []; |
|
4543 |
jsonmode = false; |
|
4544 |
warnings = 0; |
|
4545 |
lines = []; |
|
4546 |
unuseds = []; |
|
4547 |
|
|
4548 |
if (!isString(s) && !Array.isArray(s)) { |
|
4549 |
errorAt("Input is neither a string nor an array of strings.", 0); |
|
4550 |
return false; |
|
4551 |
} |
|
4552 |
|
|
4553 |
if (isString(s) && /^\s*$/g.test(s)) { |
|
4554 |
errorAt("Input is an empty string.", 0); |
|
4555 |
return false; |
|
4556 |
} |
|
4557 |
|
|
4558 |
if (s.length === 0) { |
|
4559 |
errorAt("Input is an empty array.", 0); |
|
4560 |
return false; |
|
4561 |
} |
|
4562 |
|
|
4563 |
lex.init(s); |
|
4564 |
|
|
4565 |
prereg = true; |
|
4566 |
directive = {}; |
|
4567 |
|
|
4568 |
prevtoken = token = nexttoken = syntax["(begin)"]; |
|
4569 |
|
|
4570 |
// Check options |
|
4571 |
for (var name in o) { |
|
4572 |
if (is_own(o, name)) { |
|
4573 |
checkOption(name, token); |
|
4574 |
} |
|
4575 |
} |
|
4576 |
|
|
4577 |
assume(); |
|
4578 |
|
|
4579 |
// combine the passed globals after we've assumed all our options |
|
4580 |
combine(predefined, g || {}); |
|
4581 |
|
|
4582 |
//reset values |
|
4583 |
comma.first = true; |
|
4584 |
quotmark = undefined; |
|
4585 |
|
|
4586 |
try { |
|
4587 |
advance(); |
|
4588 |
switch (nexttoken.id) { |
|
4589 |
case "{": |
|
4590 |
case "[": |
|
4591 |
option.laxbreak = true; |
|
4592 |
jsonmode = true; |
|
4593 |
jsonValue(); |
|
4594 |
break; |
|
4595 |
default: |
|
4596 |
directives(); |
|
4597 |
if (directive["use strict"] && !option.globalstrict) { |
|
4598 |
warning("Use the function form of \"use strict\".", prevtoken); |
|
4599 |
} |
|
4600 |
|
|
4601 |
statements(); |
|
4602 |
} |
|
4603 |
advance((nexttoken && nexttoken.value !== ".") ? "(end)" : undefined); |
|
4604 |
|
|
4605 |
var markDefined = function (name, context) { |
|
4606 |
do { |
|
4607 |
if (typeof context[name] === "string") { |
|
4608 |
// JSHINT marks unused variables as 'unused' and |
|
4609 |
// unused function declaration as 'unction'. This |
|
4610 |
// code changes such instances back 'var' and |
|
4611 |
// 'closure' so that the code in JSHINT.data() |
|
4612 |
// doesn't think they're unused. |
|
4613 |
|
|
4614 |
if (context[name] === "unused") |
|
4615 |
context[name] = "var"; |
|
4616 |
else if (context[name] === "unction") |
|
4617 |
context[name] = "closure"; |
|
4618 |
|
|
4619 |
return true; |
|
4620 |
} |
|
4621 |
|
|
4622 |
context = context["(context)"]; |
|
4623 |
} while (context); |
|
4624 |
|
|
4625 |
return false; |
|
4626 |
}; |
|
4627 |
|
|
4628 |
var clearImplied = function (name, line) { |
|
4629 |
if (!implied[name]) |
|
4630 |
return; |
|
4631 |
|
|
4632 |
var newImplied = []; |
|
4633 |
for (var i = 0; i < implied[name].length; i += 1) { |
|
4634 |
if (implied[name][i] !== line) |
|
4635 |
newImplied.push(implied[name][i]); |
|
4636 |
} |
|
4637 |
|
|
4638 |
if (newImplied.length === 0) |
|
4639 |
delete implied[name]; |
|
4640 |
else |
|
4641 |
implied[name] = newImplied; |
|
4642 |
}; |
|
4643 |
|
|
4644 |
var warnUnused = function (name, token) { |
|
4645 |
var line = token.line; |
|
4646 |
var chr = token.character; |
|
4647 |
|
|
4648 |
if (option.unused) |
|
4649 |
warningAt("'{a}' is defined but never used.", line, chr, name); |
|
4650 |
|
|
4651 |
unuseds.push({ |
|
4652 |
name: name, |
|
4653 |
line: line, |
|
4654 |
character: chr |
|
4655 |
}); |
|
4656 |
}; |
|
4657 |
|
|
4658 |
var checkUnused = function (func, key) { |
|
4659 |
var type = func[key]; |
|
4660 |
var token = func["(tokens)"][key]; |
|
4661 |
|
|
4662 |
if (key.charAt(0) === "(") |
|
4663 |
return; |
|
4664 |
|
|
4665 |
if (type !== "unused" && type !== "unction") |
|
4666 |
return; |
|
4667 |
|
|
4668 |
// Params are checked separately from other variables. |
|
4669 |
if (func["(params)"] && func["(params)"].indexOf(key) !== -1) |
|
4670 |
return; |
|
4671 |
|
|
4672 |
warnUnused(key, token); |
|
4673 |
}; |
|
4674 |
|
|
4675 |
// Check queued 'x is not defined' instances to see if they're still undefined. |
|
4676 |
for (i = 0; i < JSHINT.undefs.length; i += 1) { |
|
4677 |
k = JSHINT.undefs[i].slice(0); |
|
4678 |
|
|
4679 |
if (markDefined(k[2].value, k[0])) { |
|
4680 |
clearImplied(k[2].value, k[2].line); |
|
4681 |
} else { |
|
4682 |
warning.apply(warning, k.slice(1)); |
|
4683 |
} |
|
4684 |
} |
|
4685 |
|
|
4686 |
functions.forEach(function (func) { |
|
4687 |
for (var key in func) { |
|
4688 |
if (is_own(func, key)) { |
|
4689 |
checkUnused(func, key); |
|
4690 |
} |
|
4691 |
} |
|
4692 |
|
|
4693 |
if (!func["(params)"]) |
|
4694 |
return; |
|
4695 |
|
|
4696 |
var params = func["(params)"].slice(); |
|
4697 |
var param = params.pop(); |
|
4698 |
var type; |
|
4699 |
|
|
4700 |
while (param) { |
|
4701 |
type = func[param]; |
|
4702 |
|
|
4703 |
// 'undefined' is a special case for (function (window, undefined) { ... })(); |
|
4704 |
// patterns. |
|
4705 |
|
|
4706 |
if (param === "undefined") |
|
4707 |
return; |
|
4708 |
|
|
4709 |
if (type !== "unused" && type !== "unction") |
|
4710 |
return; |
|
4711 |
|
|
4712 |
warnUnused(param, func["(tokens)"][param]); |
|
4713 |
param = params.pop(); |
|
4714 |
} |
|
4715 |
}); |
|
4716 |
|
|
4717 |
for (var key in declared) { |
|
4718 |
if (is_own(declared, key) && !is_own(global, key)) { |
|
4719 |
warnUnused(key, declared[key]); |
|
4720 |
} |
|
4721 |
} |
|
4722 |
} catch (e) { |
|
4723 |
if (e) { |
|
4724 |
var nt = nexttoken || {}; |
|
4725 |
JSHINT.errors.push({ |
|
4726 |
raw : e.raw, |
|
4727 |
reason : e.message, |
|
4728 |
line : e.line || nt.line, |
|
4729 |
character : e.character || nt.from |
|
4730 |
}, null); |
|
4731 |
} |
|
4732 |
} |
|
4733 |
|
|
4734 |
// Loop over the listed "internals", and check them as well. |
|
4735 |
|
|
4736 |
if (JSHINT.scope === "(main)") { |
|
4737 |
o = o || {}; |
|
4738 |
|
|
4739 |
for (i = 0; i < JSHINT.internals.length; i += 1) { |
|
4740 |
k = JSHINT.internals[i]; |
|
4741 |
o.scope = k.elem; |
|
4742 |
itself(k.value, o, g); |
|
4743 |
} |
|
4744 |
} |
|
4745 |
|
|
4746 |
return JSHINT.errors.length === 0; |
|
4747 |
}; |
|
4748 |
|
|
4749 |
// Data summary. |
|
4750 |
itself.data = function () { |
|
4751 |
var data = { |
|
4752 |
functions: [], |
|
4753 |
options: option |
|
4754 |
}; |
|
4755 |
var implieds = []; |
|
4756 |
var members = []; |
|
4757 |
var fu, f, i, j, n, globals; |
|
4758 |
|
|
4759 |
if (itself.errors.length) { |
|
4760 |
data.errors = itself.errors; |
|
4761 |
} |
|
4762 |
|
|
4763 |
if (jsonmode) { |
|
4764 |
data.json = true; |
|
4765 |
} |
|
4766 |
|
|
4767 |
for (n in implied) { |
|
4768 |
if (is_own(implied, n)) { |
|
4769 |
implieds.push({ |
|
4770 |
name: n, |
|
4771 |
line: implied[n] |
|
4772 |
}); |
|
4773 |
} |
|
4774 |
} |
|
4775 |
|
|
4776 |
if (implieds.length > 0) { |
|
4777 |
data.implieds = implieds; |
|
4778 |
} |
|
4779 |
|
|
4780 |
if (urls.length > 0) { |
|
4781 |
data.urls = urls; |
|
4782 |
} |
|
4783 |
|
|
4784 |
globals = Object.keys(scope); |
|
4785 |
if (globals.length > 0) { |
|
4786 |
data.globals = globals; |
|
4787 |
} |
|
4788 |
|
|
4789 |
for (i = 1; i < functions.length; i += 1) { |
|
4790 |
f = functions[i]; |
|
4791 |
fu = {}; |
|
4792 |
|
|
4793 |
for (j = 0; j < functionicity.length; j += 1) { |
|
4794 |
fu[functionicity[j]] = []; |
|
4795 |
} |
|
4796 |
|
|
4797 |
for (j = 0; j < functionicity.length; j += 1) { |
|
4798 |
if (fu[functionicity[j]].length === 0) { |
|
4799 |
delete fu[functionicity[j]]; |
|
4800 |
} |
|
4801 |
} |
|
4802 |
|
|
4803 |
fu.name = f["(name)"]; |
|
4804 |
fu.param = f["(params)"]; |
|
4805 |
fu.line = f["(line)"]; |
|
4806 |
fu.character = f["(character)"]; |
|
4807 |
fu.last = f["(last)"]; |
|
4808 |
fu.lastcharacter = f["(lastcharacter)"]; |
|
4809 |
data.functions.push(fu); |
|
4810 |
} |
|
4811 |
|
|
4812 |
if (unuseds.length > 0) { |
|
4813 |
data.unused = unuseds; |
|
4814 |
} |
|
4815 |
|
|
4816 |
members = []; |
|
4817 |
for (n in member) { |
|
4818 |
if (typeof member[n] === "number") { |
|
4819 |
data.member = member; |
|
4820 |
break; |
|
4821 |
} |
|
4822 |
} |
|
4823 |
|
|
4824 |
return data; |
|
4825 |
}; |
|
4826 |
|
|
4827 |
itself.jshint = itself; |
|
4828 |
|
|
4829 |
return itself; |
|
4830 |
}()); |
|
4831 |
|
|
4832 |
// Make JSHINT a Node module, if possible. |
|
4833 |
if (typeof exports === "object" && exports) { |
|
4834 |
exports.JSHINT = JSHINT; |
|
4835 |
} |