diff options
Diffstat (limited to 'contexts/data/lib/ace/worker-javascript.js')
| -rw-r--r-- | contexts/data/lib/ace/worker-javascript.js | 12615 |
1 files changed, 4635 insertions, 7980 deletions
diff --git a/contexts/data/lib/ace/worker-javascript.js b/contexts/data/lib/ace/worker-javascript.js index e48c6e8..8fa92b6 100644 --- a/contexts/data/lib/ace/worker-javascript.js +++ b/contexts/data/lib/ace/worker-javascript.js @@ -1,8 +1,16 @@ "no use strict"; +if (typeof window != "undefined" && window.document) + throw "atempt to load ace worker into main window instead of webWorker"; + var console = { - log: function(msg) { - postMessage({type: "log", data: msg}); + log: function() { + var msgs = Array.prototype.slice.call(arguments, 0); + postMessage({type: "log", data: msgs}); + }, + error: function() { + var msgs = Array.prototype.slice.call(arguments, 0); + postMessage({type: "log", data: msgs}); } }; var window = { @@ -18,11 +26,11 @@ var normalizeModule = function(parentId, moduleName) { // normalize relative requires if (moduleName.charAt(0) == ".") { var base = parentId.split("/").slice(0, -1).join("/"); - var moduleName = base + "/" + moduleName; + moduleName = base + "/" + moduleName; while(moduleName.indexOf(".") !== -1 && previous != moduleName) { var previous = moduleName; - var moduleName = moduleName.replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, ""); + moduleName = moduleName.replace(/\/\.\//, "/").replace(/[^\/]+\/\.\.\//, ""); } } @@ -30,13 +38,16 @@ var normalizeModule = function(parentId, moduleName) { }; var require = function(parentId, id) { - var id = normalizeModule(parentId, id); - + if (!id.charAt) + throw new Error("worker.js require() accepts only (parentId, id) as arguments"); + + id = normalizeModule(parentId, id); + var module = require.modules[id]; if (module) { if (!module.initialized) { - module.exports = module.factory().exports; module.initialized = true; + module.exports = module.factory().exports; } return module.exports; } @@ -56,6 +67,10 @@ require.tlns = {}; var define = function(id, deps, factory) { if (arguments.length == 2) { factory = deps; + if (typeof id != "string") { + deps = id; + id = require.id; + } } else if (arguments.length == 1) { factory = id; id = require.id; @@ -123,7 +138,10 @@ var sender; onmessage = function(e) { var msg = e.data; if (msg.command) { - main[msg.command].apply(main, msg.args); + if (main[msg.command]) + main[msg.command].apply(main, msg.args); + else + throw new Error("Unknown command:" + msg.command); } else if (msg.init) { initBaseUrls(msg.tlns); @@ -137,40 +155,16 @@ onmessage = function(e) { } }; // vim:set ts=4 sts=4 sw=4 st: -// -- kriskowal Kris Kowal Copyright (C) 2009-2010 MIT License -// -- tlrobinson Tom Robinson Copyright (C) 2009-2010 MIT License (Narwhal Project) -// -- dantman Daniel Friesen Copyright(C) 2010 XXX No License Specified -// -- fschaefer Florian Schäfer Copyright (C) 2010 MIT License -// -- Irakli Gozalishvili Copyright (C) 2010 MIT License - -/*! - Copyright (c) 2009, 280 North Inc. http://280north.com/ - MIT License. http://github.com/280north/narwhal/blob/master/README.md -*/ define('ace/lib/fixoldbrowsers', ['require', 'exports', 'module' , 'ace/lib/regexp', 'ace/lib/es5-shim'], function(require, exports, module) { -"use strict"; + require("./regexp"); require("./es5-shim"); -});/** - * Based on code from: - * - * XRegExp 1.5.0 - * (c) 2007-2010 Steven Levithan - * MIT License - * <http://xregexp.com> - * Provides an augmented, extensible, cross-browser implementation of regular expressions, - * including support for additional syntax, flags, and methods - */ +}); define('ace/lib/regexp', ['require', 'exports', 'module' ], function(require, exports, module) { -"use strict"; - - //--------------------------------- - // Private variables - //--------------------------------- var real = { exec: RegExp.prototype.exec, @@ -186,25 +180,14 @@ define('ace/lib/regexp', ['require', 'exports', 'module' ], function(require, ex return !x.lastIndex; }(); - //--------------------------------- - // Overriden native methods - //--------------------------------- - - // Adds named capture support (with backreferences returned as `result.name`), and fixes two - // cross-browser issues per ES3: - // - Captured values for nonparticipating capturing groups should be returned as `undefined`, - // rather than the empty string. - // - `lastIndex` should not be incremented after zero-length matches. + if (compliantLastIndexIncrement && compliantExecNpcg) + return; RegExp.prototype.exec = function (str) { var match = real.exec.apply(this, arguments), name, r2; - if (match) { - // Fix browsers whose `exec` methods don't consistently return `undefined` for - // nonparticipating capturing groups + if ( typeof(str) == 'string' && match) { if (!compliantExecNpcg && match.length > 1 && indexOf(match, "") > -1) { r2 = RegExp(this.source, real.replace.call(getNativeFlags(this), "g", "")); - // Using `str.slice(match.index)` rather than `match[0]` in case lookahead allowed - // matching due to characters outside the match real.replace.call(str.slice(match.index), r2, function () { for (var i = 1; i < arguments.length - 2; i++) { if (arguments[i] === undefined) @@ -212,7 +195,6 @@ define('ace/lib/regexp', ['require', 'exports', 'module' ], function(require, ex } }); } - // Attach named capture properties if (this._xregexp && this._xregexp.captureNames) { for (var i = 1; i < match.length; i++) { name = this._xregexp.captureNames[i - 1]; @@ -220,38 +202,27 @@ define('ace/lib/regexp', ['require', 'exports', 'module' ], function(require, ex match[name] = match[i]; } } - // Fix browsers that increment `lastIndex` after zero-length matches if (!compliantLastIndexIncrement && this.global && !match[0].length && (this.lastIndex > match.index)) this.lastIndex--; } return match; }; - - // Don't override `test` if it won't change anything if (!compliantLastIndexIncrement) { - // Fix browser bug in native method RegExp.prototype.test = function (str) { - // Use the native `exec` to skip some processing overhead, even though the overriden - // `exec` would take care of the `lastIndex` fix var match = real.exec.call(this, str); - // Fix browsers that increment `lastIndex` after zero-length matches if (match && this.global && !match[0].length && (this.lastIndex > match.index)) this.lastIndex--; return !!match; }; } - //--------------------------------- - // Private helper functions - //--------------------------------- - function getNativeFlags (regex) { return (regex.global ? "g" : "") + (regex.ignoreCase ? "i" : "") + (regex.multiline ? "m" : "") + (regex.extended ? "x" : "") + // Proposed for ES4; included in AS3 (regex.sticky ? "y" : ""); - }; + } function indexOf (array, item, from) { if (Array.prototype.indexOf) // Use the native array method if available @@ -261,94 +232,21 @@ define('ace/lib/regexp', ['require', 'exports', 'module' ], function(require, ex return i; } return -1; - }; + } -});// vim: ts=4 sts=4 sw=4 expandtab -// -- kriskowal Kris Kowal Copyright (C) 2009-2011 MIT License -// -- tlrobinson Tom Robinson Copyright (C) 2009-2010 MIT License (Narwhal Project) -// -- dantman Daniel Friesen Copyright (C) 2010 XXX TODO License or CLA -// -- fschaefer Florian Schäfer Copyright (C) 2010 MIT License -// -- Gozala Irakli Gozalishvili Copyright (C) 2010 MIT License -// -- kitcambridge Kit Cambridge Copyright (C) 2011 MIT License -// -- kossnocorp Sasha Koss XXX TODO License or CLA -// -- bryanforbes Bryan Forbes XXX TODO License or CLA -// -- killdream Quildreen Motta Copyright (C) 2011 MIT Licence -// -- michaelficarra Michael Ficarra Copyright (C) 2011 3-clause BSD License -// -- sharkbrainguy Gerard Paapu Copyright (C) 2011 MIT License -// -- bbqsrc Brendan Molloy (C) 2011 Creative Commons Zero (public domain) -// -- iwyg XXX TODO License or CLA -// -- DomenicDenicola Domenic Denicola Copyright (C) 2011 MIT License -// -- xavierm02 Montillet Xavier XXX TODO License or CLA -// -- Raynos Raynos XXX TODO License or CLA -// -- samsonjs Sami Samhuri Copyright (C) 2010 MIT License -// -- rwldrn Rick Waldron Copyright (C) 2011 MIT License -// -- lexer Alexey Zakharov XXX TODO License or CLA - -/*! - Copyright (c) 2009, 280 North Inc. http://280north.com/ - MIT License. http://github.com/280north/narwhal/blob/master/README.md -*/ +}); define('ace/lib/es5-shim', ['require', 'exports', 'module' ], function(require, exports, module) { -/** - * Brings an environment as close to ECMAScript 5 compliance - * as is possible with the facilities of erstwhile engines. - * - * Annotated ES5: http://es5.github.com/ (specific links below) - * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf - * - * @module - */ - -/*whatsupdoc*/ - -// -// Function -// ======== -// - -// ES-5 15.3.4.5 -// http://es5.github.com/#x15.3.4.5 - if (!Function.prototype.bind) { Function.prototype.bind = function bind(that) { // .length is 1 - // 1. Let Target be the this value. var target = this; - // 2. If IsCallable(Target) is false, throw a TypeError exception. if (typeof target != "function") throw new TypeError(); // TODO message - // 3. Let A be a new (possibly empty) internal list of all of the - // argument values provided after thisArg (arg1, arg2 etc), in order. - // XXX slicedArgs will stand in for "A" if used var args = slice.call(arguments, 1); // for normal call - // 4. Let F be a new native ECMAScript object. - // 11. Set the [[Prototype]] internal property of F to the standard - // built-in Function prototype object as specified in 15.3.3.1. - // 12. Set the [[Call]] internal property of F as described in - // 15.3.4.5.1. - // 13. Set the [[Construct]] internal property of F as described in - // 15.3.4.5.2. - // 14. Set the [[HasInstance]] internal property of F as described in - // 15.3.4.5.3. var bound = function () { if (this instanceof bound) { - // 15.3.4.5.2 [[Construct]] - // When the [[Construct]] internal method of a function object, - // F that was created using the bind function is called with a - // list of arguments ExtraArgs, the following steps are taken: - // 1. Let target be the value of F's [[TargetFunction]] - // internal property. - // 2. If target has no [[Construct]] internal method, a - // TypeError exception is thrown. - // 3. Let boundArgs be the value of F's [[BoundArgs]] internal - // property. - // 4. Let args be a new list containing the same values as the - // list boundArgs in the same order followed by the same - // values as the list ExtraArgs in the same order. - // 5. Return the result of calling the [[Construct]] internal - // method of target providing args as the arguments. var F = function(){}; F.prototype = target.prototype; @@ -363,25 +261,6 @@ if (!Function.prototype.bind) { return self; } else { - // 15.3.4.5.1 [[Call]] - // When the [[Call]] internal method of a function object, F, - // which was created using the bind function is called with a - // this value and a list of arguments ExtraArgs, the following - // steps are taken: - // 1. Let boundArgs be the value of F's [[BoundArgs]] internal - // property. - // 2. Let boundThis be the value of F's [[BoundThis]] internal - // property. - // 3. Let target be the value of F's [[TargetFunction]] internal - // property. - // 4. Let args be a new list containing the same values as the - // list boundArgs in the same order followed by the same - // values as the list ExtraArgs in the same order. - // 5. Return the result of calling the [[Call]] internal method - // of target providing boundThis as the this value and - // providing args as the arguments. - - // equiv: target.call(this, ...boundArgs, ...args) return target.apply( that, args.concat(slice.call(arguments)) @@ -390,53 +269,15 @@ if (!Function.prototype.bind) { } }; - // XXX bound.length is never writable, so don't even try - // - // 15. If the [[Class]] internal property of Target is "Function", then - // a. Let L be the length property of Target minus the length of A. - // b. Set the length own property of F to either 0 or L, whichever is - // larger. - // 16. Else set the length own property of F to 0. - // 17. Set the attributes of the length own property of F to the values - // specified in 15.3.5.1. - - // TODO - // 18. Set the [[Extensible]] internal property of F to true. - - // TODO - // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3). - // 20. Call the [[DefineOwnProperty]] internal method of F with - // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]: - // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and - // false. - // 21. Call the [[DefineOwnProperty]] internal method of F with - // arguments "arguments", PropertyDescriptor {[[Get]]: thrower, - // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false}, - // and false. - - // TODO - // NOTE Function objects created using Function.prototype.bind do not - // have a prototype property or the [[Code]], [[FormalParameters]], and - // [[Scope]] internal properties. - // XXX can't delete prototype in pure-js. - - // 22. Return F. return bound; }; } - -// Shortcut to an often accessed properties, in order to avoid multiple -// dereference that costs universally. -// _Please note: Shortcuts are defined after `Function.prototype.bind` as we -// us it in defining shortcuts. var call = Function.prototype.call; var prototypeOfArray = Array.prototype; var prototypeOfObject = Object.prototype; var slice = prototypeOfArray.slice; var toString = call.bind(prototypeOfObject.toString); var owns = call.bind(prototypeOfObject.hasOwnProperty); - -// If JS engine supports accessors creating shortcuts. var defineGetter; var defineSetter; var lookupGetter; @@ -448,70 +289,35 @@ if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) { lookupGetter = call.bind(prototypeOfObject.__lookupGetter__); lookupSetter = call.bind(prototypeOfObject.__lookupSetter__); } - -// -// Array -// ===== -// - -// ES5 15.4.3.2 -// http://es5.github.com/#x15.4.3.2 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray if (!Array.isArray) { Array.isArray = function isArray(obj) { return toString(obj) == "[object Array]"; }; } - -// The IsCallable() check in the Array functions -// has been replaced with a strict check on the -// internal class of the object to trap cases where -// the provided function was actually a regular -// expression literal, which in V8 and -// JavaScriptCore is a typeof "function". Only in -// V8 are regular expression literals permitted as -// reduce parameters, so it is desirable in the -// general case for the shim to match the more -// strict and common behavior of rejecting regular -// expressions. - -// ES5 15.4.4.18 -// http://es5.github.com/#x15.4.4.18 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach if (!Array.prototype.forEach) { Array.prototype.forEach = function forEach(fun /*, thisp*/) { var self = toObject(this), thisp = arguments[1], i = 0, length = self.length >>> 0; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } while (i < length) { if (i in self) { - // Invoke the callback function with call, passing arguments: - // context, property value, property key, thisArg object context fun.call(thisp, self[i], i, self); } i++; } }; } - -// ES5 15.4.4.19 -// http://es5.github.com/#x15.4.4.19 -// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map if (!Array.prototype.map) { Array.prototype.map = function map(fun /*, thisp*/) { var self = toObject(this), length = self.length >>> 0, result = Array(length), thisp = arguments[1]; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } @@ -523,18 +329,12 @@ if (!Array.prototype.map) { return result; }; } - -// ES5 15.4.4.20 -// http://es5.github.com/#x15.4.4.20 -// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter if (!Array.prototype.filter) { Array.prototype.filter = function filter(fun /*, thisp */) { var self = toObject(this), length = self.length >>> 0, result = [], thisp = arguments[1]; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } @@ -546,17 +346,11 @@ if (!Array.prototype.filter) { return result; }; } - -// ES5 15.4.4.16 -// http://es5.github.com/#x15.4.4.16 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every if (!Array.prototype.every) { Array.prototype.every = function every(fun /*, thisp */) { var self = toObject(this), length = self.length >>> 0, thisp = arguments[1]; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } @@ -568,17 +362,11 @@ if (!Array.prototype.every) { return true; }; } - -// ES5 15.4.4.17 -// http://es5.github.com/#x15.4.4.17 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some if (!Array.prototype.some) { Array.prototype.some = function some(fun /*, thisp */) { var self = toObject(this), length = self.length >>> 0, thisp = arguments[1]; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } @@ -590,21 +378,13 @@ if (!Array.prototype.some) { return false; }; } - -// ES5 15.4.4.21 -// http://es5.github.com/#x15.4.4.21 -// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce if (!Array.prototype.reduce) { Array.prototype.reduce = function reduce(fun /*, initial*/) { var self = toObject(this), length = self.length >>> 0; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } - - // no value to return if no initial value and an empty array if (!length && arguments.length == 1) throw new TypeError(); // TODO message @@ -618,8 +398,6 @@ if (!Array.prototype.reduce) { result = self[i++]; break; } - - // if array contains no values, no initial value to return if (++i >= length) throw new TypeError(); // TODO message } while (true); @@ -633,21 +411,13 @@ if (!Array.prototype.reduce) { return result; }; } - -// ES5 15.4.4.22 -// http://es5.github.com/#x15.4.4.22 -// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight if (!Array.prototype.reduceRight) { Array.prototype.reduceRight = function reduceRight(fun /*, initial*/) { var self = toObject(this), length = self.length >>> 0; - - // If no callback function or if callback is not a callable function if (toString(fun) != "[object Function]") { throw new TypeError(); // TODO message } - - // no value to return if no initial value, empty array if (!length && arguments.length == 1) throw new TypeError(); // TODO message @@ -660,8 +430,6 @@ if (!Array.prototype.reduceRight) { result = self[i--]; break; } - - // if array contains no values, no initial value to return if (--i < 0) throw new TypeError(); // TODO message } while (true); @@ -675,10 +443,6 @@ if (!Array.prototype.reduceRight) { return result; }; } - -// ES5 15.4.4.14 -// http://es5.github.com/#x15.4.4.14 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf if (!Array.prototype.indexOf) { Array.prototype.indexOf = function indexOf(sought /*, fromIndex */ ) { var self = toObject(this), @@ -690,8 +454,6 @@ if (!Array.prototype.indexOf) { var i = 0; if (arguments.length > 1) i = toInteger(arguments[1]); - - // handle negative indices i = i >= 0 ? i : Math.max(0, length + i); for (; i < length; i++) { if (i in self && self[i] === sought) { @@ -701,10 +463,6 @@ if (!Array.prototype.indexOf) { return -1; }; } - -// ES5 15.4.4.15 -// http://es5.github.com/#x15.4.4.15 -// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf if (!Array.prototype.lastIndexOf) { Array.prototype.lastIndexOf = function lastIndexOf(sought /*, fromIndex */) { var self = toObject(this), @@ -715,7 +473,6 @@ if (!Array.prototype.lastIndexOf) { var i = length - 1; if (arguments.length > 1) i = Math.min(i, toInteger(arguments[1])); - // handle negative indices i = i >= 0 ? i : length - Math.abs(i); for (; i >= 0; i--) { if (i in self && sought === self[i]) @@ -724,18 +481,7 @@ if (!Array.prototype.lastIndexOf) { return -1; }; } - -// -// Object -// ====== -// - -// ES5 15.2.3.2 -// http://es5.github.com/#x15.2.3.2 if (!Object.getPrototypeOf) { - // https://github.com/kriskowal/es5-shim/issues#issue/2 - // http://ejohn.org/blog/objectgetprototypeof/ - // recommended by fschaefer on github Object.getPrototypeOf = function getPrototypeOf(object) { return object.__proto__ || ( object.constructor ? @@ -744,84 +490,73 @@ if (!Object.getPrototypeOf) { ); }; } - -// ES5 15.2.3.3 -// http://es5.github.com/#x15.2.3.3 if (!Object.getOwnPropertyDescriptor) { var ERR_NON_OBJECT = "Object.getOwnPropertyDescriptor called on a " + "non-object: "; Object.getOwnPropertyDescriptor = function getOwnPropertyDescriptor(object, property) { if ((typeof object != "object" && typeof object != "function") || object === null) throw new TypeError(ERR_NON_OBJECT + object); - // If object does not owns property return undefined immediately. if (!owns(object, property)) return; var descriptor, getter, setter; - - // If object has a property then it's for sure both `enumerable` and - // `configurable`. descriptor = { enumerable: true, configurable: true }; - - // If JS engine supports accessor properties then property may be a - // getter or setter. if (supportsAccessors) { - // Unfortunately `__lookupGetter__` will return a getter even - // if object has own non getter property along with a same named - // inherited getter. To avoid misbehavior we temporary remove - // `__proto__` so that `__lookupGetter__` will return getter only - // if it's owned by an object. var prototype = object.__proto__; object.__proto__ = prototypeOfObject; var getter = lookupGetter(object, property); var setter = lookupSetter(object, property); - - // Once we have getter and setter we can put values back. object.__proto__ = prototype; if (getter || setter) { if (getter) descriptor.get = getter; if (setter) descriptor.set = setter; - - // If it was accessor property we're done and return here - // in order to avoid adding `value` to the descriptor. return descriptor; } } - - // If we got this far we know that object has an own property that is - // not an accessor so we set it as a value and return descriptor. descriptor.value = object[property]; return descriptor; }; } - -// ES5 15.2.3.4 -// http://es5.github.com/#x15.2.3.4 if (!Object.getOwnPropertyNames) { Object.getOwnPropertyNames = function getOwnPropertyNames(object) { return Object.keys(object); }; } - -// ES5 15.2.3.5 -// http://es5.github.com/#x15.2.3.5 if (!Object.create) { + var createEmpty; + if (Object.prototype.__proto__ === null) { + createEmpty = function () { + return { "__proto__": null }; + }; + } else { + createEmpty = function () { + var empty = {}; + for (var i in empty) + empty[i] = null; + empty.constructor = + empty.hasOwnProperty = + empty.propertyIsEnumerable = + empty.isPrototypeOf = + empty.toLocaleString = + empty.toString = + empty.valueOf = + empty.__proto__ = null; + return empty; + } + } + Object.create = function create(prototype, properties) { var object; if (prototype === null) { - object = { "__proto__": null }; + object = createEmpty(); } else { if (typeof prototype != "object") throw new TypeError("typeof prototype["+(typeof prototype)+"] != 'object'"); var Type = function () {}; Type.prototype = prototype; object = new Type(); - // IE has no built-in implementation of `Object.getPrototypeOf` - // neither `__proto__`, but this manually setting `__proto__` will - // guarantee that `Object.getPrototypeOf` will work as expected with - // objects created using `Object.create` object.__proto__ = prototype; } if (properties !== void 0) @@ -830,29 +565,13 @@ if (!Object.create) { }; } -// ES5 15.2.3.6 -// http://es5.github.com/#x15.2.3.6 - -// Patch for WebKit and IE8 standard mode -// Designed by hax <hax.github.com> -// related issue: https://github.com/kriskowal/es5-shim/issues#issue/5 -// IE8 Reference: -// http://msdn.microsoft.com/en-us/library/dd282900.aspx -// http://msdn.microsoft.com/en-us/library/dd229916.aspx -// WebKit Bugs: -// https://bugs.webkit.org/show_bug.cgi?id=36423 - function doesDefinePropertyWork(object) { try { Object.defineProperty(object, "sentinel", {}); return "sentinel" in object; } catch (exception) { - // returns falsy } } - -// check whether defineProperty works if it's given. Otherwise, -// shim partially. if (Object.defineProperty) { var definePropertyWorksOnObject = doesDefinePropertyWork({}); var definePropertyWorksOnDom = typeof document == "undefined" || @@ -873,48 +592,21 @@ if (!Object.defineProperty || definePropertyFallback) { throw new TypeError(ERR_NON_OBJECT_TARGET + object); if ((typeof descriptor != "object" && typeof descriptor != "function") || descriptor === null) throw new TypeError(ERR_NON_OBJECT_DESCRIPTOR + descriptor); - - // make a valiant attempt to use the real defineProperty - // for I8's DOM elements. if (definePropertyFallback) { try { return definePropertyFallback.call(Object, object, property, descriptor); } catch (exception) { - // try the shim if the real one doesn't work } } - - // If it's a data property. if (owns(descriptor, "value")) { - // fail silently if "writable", "enumerable", or "configurable" - // are requested but not supported - /* - // alternate approach: - if ( // can't implement these features; allow false but not true - !(owns(descriptor, "writable") ? descriptor.writable : true) || - !(owns(descriptor, "enumerable") ? descriptor.enumerable : true) || - !(owns(descriptor, "configurable") ? descriptor.configurable : true) - ) - throw new RangeError( - "This implementation of Object.defineProperty does not " + - "support configurable, enumerable, or writable." - ); - */ if (supportsAccessors && (lookupGetter(object, property) || lookupSetter(object, property))) { - // As accessors are supported only on engines implementing - // `__proto__` we can safely override `__proto__` while defining - // a property to make sure that we don't hit an inherited - // accessor. var prototype = object.__proto__; object.__proto__ = prototypeOfObject; - // Deleting a property anyway since getter / setter may be - // defined on object itself. delete object[property]; object[property] = descriptor.value; - // Setting original `__proto__` back now. object.__proto__ = prototype; } else { object[property] = descriptor.value; @@ -922,7 +614,6 @@ if (!Object.defineProperty || definePropertyFallback) { } else { if (!supportsAccessors) throw new TypeError(ERR_ACCESSORS_NOT_SUPPORTED); - // If we got that far then getters and setters can be defined !! if (owns(descriptor, "get")) defineGetter(object, property, descriptor.get); if (owns(descriptor, "set")) @@ -932,9 +623,6 @@ if (!Object.defineProperty || definePropertyFallback) { return object; }; } - -// ES5 15.2.3.7 -// http://es5.github.com/#x15.2.3.7 if (!Object.defineProperties) { Object.defineProperties = function defineProperties(object, properties) { for (var property in properties) { @@ -944,30 +632,16 @@ if (!Object.defineProperties) { return object; }; } - -// ES5 15.2.3.8 -// http://es5.github.com/#x15.2.3.8 if (!Object.seal) { Object.seal = function seal(object) { - // this is misleading and breaks feature-detection, but - // allows "securable" code to "gracefully" degrade to working - // but insecure code. return object; }; } - -// ES5 15.2.3.9 -// http://es5.github.com/#x15.2.3.9 if (!Object.freeze) { Object.freeze = function freeze(object) { - // this is misleading and breaks feature-detection, but - // allows "securable" code to "gracefully" degrade to working - // but insecure code. return object; }; } - -// detect a Rhino bug and patch it try { Object.freeze(function () {}); } catch (exception) { @@ -981,43 +655,26 @@ try { }; })(Object.freeze); } - -// ES5 15.2.3.10 -// http://es5.github.com/#x15.2.3.10 if (!Object.preventExtensions) { Object.preventExtensions = function preventExtensions(object) { - // this is misleading and breaks feature-detection, but - // allows "securable" code to "gracefully" degrade to working - // but insecure code. return object; }; } - -// ES5 15.2.3.11 -// http://es5.github.com/#x15.2.3.11 if (!Object.isSealed) { Object.isSealed = function isSealed(object) { return false; }; } - -// ES5 15.2.3.12 -// http://es5.github.com/#x15.2.3.12 if (!Object.isFrozen) { Object.isFrozen = function isFrozen(object) { return false; }; } - -// ES5 15.2.3.13 -// http://es5.github.com/#x15.2.3.13 if (!Object.isExtensible) { Object.isExtensible = function isExtensible(object) { - // 1. If Type(O) is not Object throw a TypeError exception. if (Object(object) === object) { throw new TypeError(); // TODO message } - // 2. Return the Boolean value of the [[Extensible]] internal property of O. var name = ''; while (owns(object, name)) { name += '?'; @@ -1028,11 +685,7 @@ if (!Object.isExtensible) { return returnValue; }; } - -// ES5 15.2.3.14 -// http://es5.github.com/#x15.2.3.14 if (!Object.keys) { - // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation var hasDontEnumBug = true, dontEnums = [ "toString", @@ -1073,26 +726,11 @@ if (!Object.keys) { }; } - -// -// Date -// ==== -// - -// ES5 15.9.5.43 -// http://es5.github.com/#x15.9.5.43 -// This function returns a String value represent the instance in time -// represented by this Date object. The format of the String is the Date Time -// string format defined in 15.9.1.15. All fields are present in the String. -// The time zone is always UTC, denoted by the suffix Z. If the time value of -// this object is not a finite Number a RangeError exception is thrown. if (!Date.prototype.toISOString || (new Date(-62198755200000).toISOString().indexOf('-000001') === -1)) { Date.prototype.toISOString = function toISOString() { var result, length, value, year; if (!isFinite(this)) throw new RangeError; - - // the date time string format is specified in 15.9.1.15. result = [this.getUTCMonth() + 1, this.getUTCDate(), this.getUTCHours(), this.getUTCMinutes(), this.getUTCSeconds()]; year = this.getUTCFullYear(); @@ -1101,76 +739,32 @@ if (!Date.prototype.toISOString || (new Date(-62198755200000).toISOString().inde length = result.length; while (length--) { value = result[length]; - // pad months, days, hours, minutes, and seconds to have two digits. if (value < 10) result[length] = "0" + value; } - // pad milliseconds to have three digits. return year + "-" + result.slice(0, 2).join("-") + "T" + result.slice(2).join(":") + "." + ("000" + this.getUTCMilliseconds()).slice(-3) + "Z"; } } - -// ES5 15.9.4.4 -// http://es5.github.com/#x15.9.4.4 if (!Date.now) { Date.now = function now() { return new Date().getTime(); }; } - -// ES5 15.9.5.44 -// http://es5.github.com/#x15.9.5.44 -// This function provides a String representation of a Date object for use by -// JSON.stringify (15.12.3). if (!Date.prototype.toJSON) { Date.prototype.toJSON = function toJSON(key) { - // When the toJSON method is called with argument key, the following - // steps are taken: - - // 1. Let O be the result of calling ToObject, giving it the this - // value as its argument. - // 2. Let tv be ToPrimitive(O, hint Number). - // 3. If tv is a Number and is not finite, return null. - // XXX - // 4. Let toISO be the result of calling the [[Get]] internal method of - // O with argument "toISOString". - // 5. If IsCallable(toISO) is false, throw a TypeError exception. if (typeof this.toISOString != "function") throw new TypeError(); // TODO message - // 6. Return the result of calling the [[Call]] internal method of - // toISO with O as the this value and an empty argument list. return this.toISOString(); - - // NOTE 1 The argument is ignored. - - // NOTE 2 The toJSON function is intentionally generic; it does not - // require that its this value be a Date object. Therefore, it can be - // transferred to other kinds of objects for use as a method. However, - // it does require that any such object have a toISOString method. An - // object is free to use the argument key to filter its - // stringification. }; } - -// ES5 15.9.4.2 -// http://es5.github.com/#x15.9.4.2 -// based on work shared by Daniel Friesen (dantman) -// http://gist.github.com/303249 if (Date.parse("+275760-09-13T00:00:00.000Z") !== 8.64e15) { - // XXX global assignment won't work in embeddings that use - // an alternate object for the context. Date = (function(NativeDate) { - - // Date.length === 7 var Date = function Date(Y, M, D, h, m, s, ms) { var length = arguments.length; if (this instanceof NativeDate) { var date = length == 1 && String(Y) === Y ? // isString(Y) - // We explicitly pass it through parse: new NativeDate(Date.parse(Y)) : - // We have to manually make calls depending on argument - // length here length >= 7 ? new NativeDate(Y, M, D, h, m, s, ms) : length >= 6 ? new NativeDate(Y, M, D, h, m, s) : length >= 5 ? new NativeDate(Y, M, D, h, m) : @@ -1179,14 +773,11 @@ if (Date.parse("+275760-09-13T00:00:00.000Z") !== 8.64e15) { length >= 2 ? new NativeDate(Y, M) : length >= 1 ? new NativeDate(Y) : new NativeDate(); - // Prevent mixups with unfixed Date object date.constructor = Date; return date; } return NativeDate.apply(this, arguments); }; - - // 15.9.1.15 Date Time String Format. var isoDateExpression = new RegExp("^" + "(\\d{4}|[\+\-]\\d{6})" + // four-digit year capture or sign + 6-digit extended year "(?:-(\\d{2})" + // optional month capture @@ -1207,59 +798,33 @@ if (Date.parse("+275760-09-13T00:00:00.000Z") !== 8.64e15) { ")" + ")?)?)?)?" + "$"); - - // Copy any custom methods a 3rd party library may have added for (var key in NativeDate) Date[key] = NativeDate[key]; - - // Copy "native" methods explicitly; they may be non-enumerable Date.now = NativeDate.now; Date.UTC = NativeDate.UTC; Date.prototype = NativeDate.prototype; Date.prototype.constructor = Date; - - // Upgrade Date.parse to handle simplified ISO 8601 strings Date.parse = function parse(string) { var match = isoDateExpression.exec(string); if (match) { match.shift(); // kill match[0], the full match - // parse months, days, hours, minutes, seconds, and milliseconds for (var i = 1; i < 7; i++) { - // provide default values if necessary match[i] = +(match[i] || (i < 3 ? 1 : 0)); - // match[1] is the month. Months are 0-11 in JavaScript - // `Date` objects, but 1-12 in ISO notation, so we - // decrement. if (i == 1) match[i]--; } - - // parse the UTC offset component var minuteOffset = +match.pop(), hourOffset = +match.pop(), sign = match.pop(); - - // compute the explicit time zone offset if specified var offset = 0; if (sign) { - // detect invalid offsets and return early if (hourOffset > 23 || minuteOffset > 59) return NaN; - - // express the provided time zone offset in minutes. The offset is - // negative for time zones west of UTC; positive otherwise. offset = (hourOffset * 60 + minuteOffset) * 6e4 * (sign == "+" ? -1 : 1); } - - // Date.UTC for years between 0 and 99 converts year to 1900 + year - // The Gregorian calendar has a 400-year cycle, so - // to Date.UTC(year + 400, .... ) - 12622780800000 == Date.UTC(year, ...), - // where 12622780800000 - number of milliseconds in Gregorian calendar 400 years var year = +match[0]; if (0 <= year && year <= 99) { match[0] = year + 400; return NativeDate.UTC.apply(this, match) + offset - 12622780800000; } - - // compute a new UTC date value, accounting for the optional offset return NativeDate.UTC.apply(this, match) + offset; } return NativeDate.parse.apply(this, arguments); @@ -1268,20 +833,10 @@ if (Date.parse("+275760-09-13T00:00:00.000Z") !== 8.64e15) { return Date; })(Date); } - -// -// String -// ====== -// - -// ES5 15.5.4.20 -// http://es5.github.com/#x15.5.4.20 var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" + "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" + "\u2029\uFEFF"; if (!String.prototype.trim || ws.trim()) { - // http://blog.stevenlevithan.com/archives/faster-trim-javascript - // http://perfectionkills.com/whitespace-deviations/ ws = "[" + ws + "]"; var trimBeginRegexp = new RegExp("^" + ws + ws + "*"), trimEndRegexp = new RegExp(ws + ws + "*$"); @@ -1289,15 +844,6 @@ if (!String.prototype.trim || ws.trim()) { return String(this).replace(trimBeginRegexp, "").replace(trimEndRegexp, ""); }; } - -// -// Util -// ====== -// - -// ES5 9.4 -// http://es5.github.com/#x9.4 -// http://jsperf.com/to-integer var toInteger = function (n) { n = +n; if (n !== n) // isNaN @@ -1308,61 +854,19 @@ var toInteger = function (n) { }; var prepareString = "a"[0] != "a", - // ES5 9.9 - // http://es5.github.com/#x9.9 toObject = function (o) { if (o == null) { // this matches both null and undefined throw new TypeError(); // TODO message } - // If the implementation doesn't support by-index access of - // string characters (ex. IE < 7), split the string if (prepareString && typeof o == "string" && o) { return o.split(""); } return Object(o); }; -});/* vim:ts=4:sts=4:sw=4: - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * Irakli Gozalishvili <rfobic@gmail.com> (http://jeditoolkit.com) - * Mike de Boer <mike AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ +}); define('ace/lib/event_emitter', ['require', 'exports', 'module' ], function(require, exports, module) { -"use strict"; + var EventEmitter = {}; @@ -1376,8 +880,11 @@ EventEmitter._dispatchEvent = function(eventName, e) { if (!listeners.length && !defaultHandler) return; - e = e || {}; - e.type = eventName; + if (typeof e != "object" || !e) + e = {}; + + if (!e.type) + e.type = eventName; if (!e.stopPropagation) { e.stopPropagation = function() { @@ -1398,7 +905,7 @@ EventEmitter._dispatchEvent = function(eventName, e) { } if (defaultHandler && !e.defaultPrevented) - defaultHandler(e); + return defaultHandler(e); }; EventEmitter.setDefaultHandler = function(eventName, callback) { @@ -1416,7 +923,7 @@ EventEmitter.addEventListener = function(eventName, callback) { var listeners = this._eventRegistry[eventName]; if (!listeners) - var listeners = this._eventRegistry[eventName] = []; + listeners = this._eventRegistry[eventName] = []; if (listeners.indexOf(callback) == -1) listeners.push(callback); @@ -1441,45 +948,10 @@ EventEmitter.removeAllListeners = function(eventName) { exports.EventEmitter = EventEmitter; -});/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ +}); define('ace/lib/oop', ['require', 'exports', 'module' ], function(require, exports, module) { -"use strict"; + exports.inherits = (function() { var tempCtor = function() {}; @@ -1502,95 +974,156 @@ exports.implement = function(proto, mixin) { }; }); -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -define('ace/mode/javascript_worker', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/worker/mirror', 'ace/worker/jshint', 'ace/narcissus/jsparse'], function(require, exports, module) { -"use strict"; - + +define('ace/mode/javascript_worker', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/worker/mirror', 'ace/mode/javascript/jshint'], function(require, exports, module) { + + var oop = require("../lib/oop"); var Mirror = require("../worker/mirror").Mirror; -var lint = require("../worker/jshint").JSHINT; - +var lint = require("./javascript/jshint").JSHINT; + +function startRegex(arr) { + return RegExp("^(" + arr.join("|") + ")"); +} + +var disabledWarningsRe = startRegex([ + "Bad for in variable '(.+)'.", + 'Missing "use strict"' +]); +var errorsRe = startRegex([ + "Unexpected", + "Expected ", + "Confusing (plus|minus)", + "\\{a\\} unterminated regular expression", + "Unclosed ", + "Unmatched ", + "Unbegun comment", + "Bad invocation", + "Missing space after", + "Missing operator at" +]); +var infoRe = startRegex([ + "Expected an assignment", + "Bad escapement of EOL", + "Unexpected comma", + "Unexpected space", + "Missing radix parameter.", + "A leading decimal point can", + "\\['{a}'\\] is better written in dot notation.", + "'{a}' used out of scope" +]); + var JavaScriptWorker = exports.JavaScriptWorker = function(sender) { Mirror.call(this, sender); this.setTimeout(500); + this.setOptions(); }; oop.inherits(JavaScriptWorker, Mirror); (function() { - + this.setOptions = function(options) { + this.options = options || { + es5: true, + esnext: true, + devel: true, + browser: true, + node: true, + laxcomma: true, + laxbreak: true, + lastsemic: true, + onevar: false, + passfail: false, + maxerr: 100, + expr: true, + multistr: true, + globalstrict: true + }; + this.doc.getValue() && this.deferredUpdate.schedule(100); + }; + + this.changeOptions = function(newOptions) { + oop.mixin(this.options, newOptions); + this.doc.getValue() && this.deferredUpdate.schedule(100); + }; + + this.isValidJS = function(str) { + try { + eval("throw 0;" + str); + } catch(e) { + if (e === 0) + return true; + } + return false + }; + this.onUpdate = function() { var value = this.doc.getValue(); value = value.replace(/^#!.*\n/, "\n"); - -// var start = new Date(); - var parser = require("../narcissus/jsparse"); - try { - parser.parse(value); - } catch(e) { -// console.log("narcissus") -// console.log(e); - var chunks = e.message.split(":") - var message = chunks.pop().trim(); - var lineNumber = parseInt(chunks.pop().trim()) - 1; - this.sender.emit("narcissus", { - row: lineNumber, - column: null, // TODO convert e.cursor - text: message, - type: "error" - }); + if (!value) { + this.sender.emit("jslint", []); return; - } finally { -// console.log("parse time: " + (new Date() - start)); } - -// var start = new Date(); -// console.log("jslint") - lint(value, {undef: false, onevar: false, passfail: false}); - this.sender.emit("jslint", lint.errors); -// console.log("lint time: " + (new Date() - start)); - } - + var errors = []; + var maxErrorLevel = this.isValidJS(value) ? "warning" : "error"; + lint(value, this.options); + var results = lint.errors; + + var errorAdded = false + for (var i = 0; i < results.length; i++) { + var error = results[i]; + if (!error) + continue; + var raw = error.raw; + var type = "warning"; + + if (raw == "Missing semicolon.") { + var str = error.evidence.substr(error.character); + str = str.charAt(str.search(/\S/)); + if (maxErrorLevel == "error" && str && /[\w\d{(['"]/.test(str)) { + error.reason = 'Missing ";" before statement'; + type = "error"; + } else { + type = "info"; + } + } + else if (disabledWarningsRe.test(raw)) { + continue; + } + else if (infoRe.test(raw)) { + type = "info" + } + else if (errorsRe.test(raw)) { + errorAdded = true; + type = maxErrorLevel; + } + else if (raw == "'{a}' is not defined.") { + type = "warning"; + } + else if (raw == "'{a}' is defined but never used.") { + type = "info"; + } + + errors.push({ + row: error.line-1, + column: error.character-1, + text: error.reason, + type: type, + raw: raw + }); + + if (errorAdded) { + } + } + + this.sender.emit("jslint", errors); + }; + }).call(JavaScriptWorker.prototype); -});define('ace/worker/mirror', ['require', 'exports', 'module' , 'ace/document', 'ace/lib/lang'], function(require, exports, module) { -"use strict"; +}); +define('ace/worker/mirror', ['require', 'exports', 'module' , 'ace/document', 'ace/lib/lang'], function(require, exports, module) { + var Document = require("../document").Document; var lang = require("../lib/lang"); @@ -1626,50 +1159,14 @@ var Mirror = exports.Mirror = function(sender) { }; this.onUpdate = function() { - // abstract method }; }).call(Mirror.prototype); -});/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ +}); define('ace/document', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/lib/event_emitter', 'ace/range', 'ace/anchor'], function(require, exports, module) { -"use strict"; + var oop = require("./lib/oop"); var EventEmitter = require("./lib/event_emitter").EventEmitter; @@ -1678,14 +1175,10 @@ var Anchor = require("./anchor").Anchor; var Document = function(text) { this.$lines = []; - - if (Array.isArray(text)) { - this.insertLines(0, text); - } - // There has to be one line at least in the document. If you pass an empty - // string to the insert function, nothing will happen. Workaround. - else if (text.length == 0) { + if (text.length == 0) { this.$lines = [""]; + } else if (Array.isArray(text)) { + this.insertLines(0, text); } else { this.insert({row: 0, column:0}, text); } @@ -1694,22 +1187,17 @@ var Document = function(text) { (function() { oop.implement(this, EventEmitter); - this.setValue = function(text) { var len = this.getLength(); this.remove(new Range(0, 0, len, this.getLine(len-1).length)); this.insert({row: 0, column:0}, text); }; - this.getValue = function() { return this.getAllLines().join(this.getNewLineCharacter()); }; - this.createAnchor = function(row, column) { return new Anchor(this, row, column); }; - - // check for IE split bug if ("aaa".split(/a/).length == 0) this.$split = function(text) { return text.replace(/\r\n|\r/g, "\n").split("\n"); @@ -1720,6 +1208,7 @@ var Document = function(text) { }; + this.$detectNewLine = function(text) { var match = text.match(/^.*?(\r\n|\r|\n)/m); if (match) { @@ -1728,18 +1217,17 @@ var Document = function(text) { this.$autoNewLine = "\n"; } }; - this.getNewLineCharacter = function() { - switch (this.$newLineMode) { + switch (this.$newLineMode) { case "windows": - return "\r\n"; + return "\r\n"; case "unix": - return "\n"; + return "\n"; - case "auto": - return this.$autoNewLine; - } + default: + return this.$autoNewLine; + } }; this.$autoNewLine = "\n"; @@ -1750,48 +1238,33 @@ var Document = function(text) { this.$newLineMode = newLineMode; }; - this.getNewLineMode = function() { return this.$newLineMode; }; - this.isNewLine = function(text) { return (text == "\r\n" || text == "\r" || text == "\n"); }; - - /** - * Get a verbatim copy of the given line as it is in the document - */ this.getLine = function(row) { return this.$lines[row] || ""; }; - this.getLines = function(firstRow, lastRow) { return this.$lines.slice(firstRow, lastRow + 1); }; - - /** - * Returns all lines in the document as string array. Warning: The caller - * should not modify this array! - */ this.getAllLines = function() { return this.getLines(0, this.getLength()); }; - this.getLength = function() { return this.$lines.length; }; - this.getTextRange = function(range) { if (range.start.row == range.end.row) { return this.$lines[range.start.row].substring(range.start.column, range.end.column); } else { - var lines = []; - lines.push(this.$lines[range.start.row].substring(range.start.column)); - lines.push.apply(lines, this.getLines(range.start.row+1, range.end.row-1)); - lines.push(this.$lines[range.end.row].substring(0, range.end.column)); + var lines = this.getLines(range.start.row+1, range.end.row-1); + lines.unshift((this.$lines[range.start.row] || "").substring(range.start.column)); + lines.push((this.$lines[range.end.row] || "").substring(0, range.end.column)); return lines.join(this.getNewLineCharacter()); } }; @@ -1804,13 +1277,11 @@ var Document = function(text) { } return position; }; - this.insert = function(position, text) { - if (text.length == 0) + if (!text || text.length === 0) return position; position = this.$clipPosition(position); - if (this.getLength() <= 1) this.$detectNewLine(text); @@ -1826,10 +1297,13 @@ var Document = function(text) { } return position; }; - this.insertLines = function(row, lines) { if (lines.length == 0) return {row: row, column: 0}; + if (lines.length > 0xFFFF) { + var end = this.insertLines(row, lines.slice(0xFFFF)); + lines = lines.slice(0, 0xFFFF); + } var args = [row, 0]; args.push.apply(args, lines); @@ -1842,9 +1316,8 @@ var Document = function(text) { lines: lines }; this._emit("change", { data: delta }); - return range.end; + return end || range.end; }; - this.insertNewLine = function(position) { position = this.$clipPosition(position); var line = this.$lines[position.row] || ""; @@ -1866,7 +1339,6 @@ var Document = function(text) { return end; }; - this.insertInLine = function(position, text) { if (text.length == 0) return position; @@ -1890,9 +1362,7 @@ var Document = function(text) { return end; }; - this.remove = function(range) { - // clip to document range.start = this.$clipPosition(range.start); range.end = this.$clipPosition(range.end); @@ -1922,7 +1392,6 @@ var Document = function(text) { } return range.start; }; - this.removeInLine = function(row, startColumn, endColumn) { if (startColumn == endColumn) return; @@ -1941,14 +1410,6 @@ var Document = function(text) { this._emit("change", { data: delta }); return range.start; }; - - /** - * Removes a range of full lines - * - * @param firstRow {Integer} The first row to be removed - * @param lastRow {Integer} The last row to be removed - * @return {String[]} The removed lines - */ this.removeLines = function(firstRow, lastRow) { var range = new Range(firstRow, 0, lastRow + 1, 0); var removed = this.$lines.splice(firstRow, lastRow - firstRow + 1); @@ -1962,7 +1423,6 @@ var Document = function(text) { this._emit("change", { data: delta }); return removed; }; - this.removeNewLine = function(row) { var firstLine = this.getLine(row); var secondLine = this.getLine(row+1); @@ -1979,13 +1439,9 @@ var Document = function(text) { }; this._emit("change", { data: delta }); }; - this.replace = function(range, text) { if (text.length == 0 && range.isEmpty()) return range.start; - - // Shortcut: If the text we want to insert is the same as it is already - // in the document, we don't have to replace anything. if (text == this.getTextRange(range)) return range.end; @@ -1999,7 +1455,6 @@ var Document = function(text) { return end; }; - this.applyDeltas = function(deltas) { for (var i=0; i<deltas.length; i++) { var delta = deltas[i]; @@ -2015,7 +1470,6 @@ var Document = function(text) { this.remove(range); } }; - this.revertDeltas = function(deltas) { for (var i=deltas.length-1; i>=0; i--) { var delta = deltas[i]; @@ -2032,51 +1486,33 @@ var Document = function(text) { this.insert(range.start, delta.text); } }; + this.indexToPosition = function(index, startRow) { + var lines = this.$lines || this.getAllLines(); + var newlineLength = this.getNewLineCharacter().length; + for (var i = startRow || 0, l = lines.length; i < l; i++) { + index -= lines[i].length + newlineLength; + if (index < 0) + return {row: i, column: index + lines[i].length + newlineLength}; + } + return {row: l-1, column: lines[l-1].length}; + }; + this.positionToIndex = function(pos, startRow) { + var lines = this.$lines || this.getAllLines(); + var newlineLength = this.getNewLineCharacter().length; + var index = 0; + var row = Math.min(pos.row, lines.length); + for (var i = startRow || 0; i < row; ++i) + index += lines[i].length; + + return index + newlineLength * i + pos.column; + }; }).call(Document.prototype); exports.Document = Document; }); -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ define('ace/range', ['require', 'exports', 'module' ], function(require, exports, module) { -"use strict"; - var Range = function(startRow, startColumn, endRow, endColumn) { this.start = { row: startRow, @@ -2089,36 +1525,21 @@ var Range = function(startRow, startColumn, endRow, endColumn) { }; }; -(function() { - this.isEequal = function(range) { +(function() { + this.isEqual = function(range) { return this.start.row == range.start.row && this.end.row == range.end.row && this.start.column == range.start.column && this.end.column == range.end.column - }; - + }; this.toString = function() { return ("Range: [" + this.start.row + "/" + this.start.column + "] -> [" + this.end.row + "/" + this.end.column + "]"); - }; + }; this.contains = function(row, column) { return this.compare(row, column) == 0; - }; - - /** - * Compares this range (A) with another range (B), where B is the passed in - * range. - * - * Return values: - * -2: (B) is infront of (A) and doesn't intersect with (A) - * -1: (B) begins before (A) but ends inside of (A) - * 0: (B) is completly inside of (A) OR (A) is complety inside of (B) - * +1: (B) begins inside of (A) but ends outside of (A) - * +2: (B) is after (A) and doesn't intersect with (A) - * - * 42: FTW state: (B) ends in (A) but starts outside of (A) - */ + }; this.compareRange = function(range) { var cmp, end = range.end, @@ -2146,24 +1567,23 @@ var Range = function(startRow, startColumn, endRow, endColumn) { return 0; } } - } - + }; this.comparePoint = function(p) { return this.compare(p.row, p.column); - } - + }; this.containsRange = function(range) { return this.comparePoint(range.start) == 0 && this.comparePoint(range.end) == 0; - } - + }; + this.intersects = function(range) { + var cmp = this.compareRange(range); + return (cmp == -1 || cmp == 0 || cmp == 1); + }; this.isEnd = function(row, column) { return this.end.row == row && this.end.column == column; - } - + }; this.isStart = function(row, column) { return this.start.row == row && this.start.column == column; - } - + }; this.setStart = function(row, column) { if (typeof row == "object") { this.start.column = row.column; @@ -2172,8 +1592,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { this.start.row = row; this.start.column = column; } - } - + }; this.setEnd = function(row, column) { if (typeof row == "object") { this.end.column = row.column; @@ -2182,8 +1601,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { this.end.row = row; this.end.column = column; } - } - + }; this.inside = function(row, column) { if (this.compare(row, column) == 0) { if (this.isEnd(row, column) || this.isStart(row, column)) { @@ -2193,8 +1611,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { } } return false; - } - + }; this.insideStart = function(row, column) { if (this.compare(row, column) == 0) { if (this.isEnd(row, column)) { @@ -2204,8 +1621,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { } } return false; - } - + }; this.insideEnd = function(row, column) { if (this.compare(row, column) == 0) { if (this.isStart(row, column)) { @@ -2215,8 +1631,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { } } return false; - } - + }; this.compare = function(row, column) { if (!this.isMultiLine()) { if (row === this.start.row) { @@ -2238,29 +1653,20 @@ var Range = function(startRow, startColumn, endRow, endColumn) { return 0; }; - - /** - * Like .compare(), but if isStart is true, return -1; - */ this.compareStart = function(row, column) { if (this.start.row == row && this.start.column == column) { return -1; } else { return this.compare(row, column); } - } - - /** - * Like .compare(), but if isEnd is true, return 1; - */ + }; this.compareEnd = function(row, column) { if (this.end.row == row && this.end.column == column) { return 1; } else { return this.compare(row, column); } - } - + }; this.compareInside = function(row, column) { if (this.end.row == row && this.end.column == column) { return 1; @@ -2269,8 +1675,7 @@ var Range = function(startRow, startColumn, endRow, endColumn) { } else { return this.compare(row, column); } - } - + }; this.clipRows = function(firstRow, lastRow) { if (this.end.row > lastRow) { var end = { @@ -2301,7 +1706,6 @@ var Range = function(startRow, startColumn, endRow, endColumn) { } return Range.fromPoints(start || this.start, end || this.end); }; - this.extend = function(row, column) { var cmp = this.compare(row, column); @@ -2318,22 +1722,18 @@ var Range = function(startRow, startColumn, endRow, endColumn) { this.isEmpty = function() { return (this.start.row == this.end.row && this.start.column == this.end.column); }; - this.isMultiLine = function() { return (this.start.row !== this.end.row); }; - this.clone = function() { return Range.fromPoints(this.start, this.end); }; - this.collapseRows = function() { if (this.end.column == 0) return new Range(this.start.row, 0, Math.max(this.start.row, this.end.row-1), 0) else return new Range(this.start.row, 0, this.end.row, 0) }; - this.toScreenRange = function(session) { var screenPosStart = session.documentToScreenPosition(this.start); @@ -2347,61 +1747,19 @@ var Range = function(startRow, startColumn, endRow, endColumn) { }; }).call(Range.prototype); - - Range.fromPoints = function(start, end) { return new Range(start.row, start.column, end.row, end.column); }; exports.Range = Range; }); -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ define('ace/anchor', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/lib/event_emitter'], function(require, exports, module) { -"use strict"; + var oop = require("./lib/oop"); var EventEmitter = require("./lib/event_emitter").EventEmitter; -/** - * An Anchor is a floating pointer in the document. Whenever text is inserted or - * deleted before the cursor, the position of the cursor is updated - */ var Anchor = exports.Anchor = function(doc, row, column) { this.document = doc; @@ -2417,15 +1775,15 @@ var Anchor = exports.Anchor = function(doc, row, column) { (function() { oop.implement(this, EventEmitter); - + this.getPosition = function() { return this.$clipPositionToDocument(this.row, this.column); }; - + this.getDocument = function() { return this.document; }; - + this.onChange = function(e) { var delta = e.data; var range = delta.range; @@ -2518,11 +1876,10 @@ var Anchor = exports.Anchor = function(doc, row, column) { value: pos }); }; - + this.detach = function() { this.document.removeEventListener("change", this.$onChange); }; - this.$clipPositionToDocument = function(row, column) { var pos = {}; @@ -2548,45 +1905,9 @@ var Anchor = exports.Anchor = function(doc, row, column) { }).call(Anchor.prototype); }); -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Ajax.org Code Editor (ACE). - * - * The Initial Developer of the Original Code is - * Ajax.org B.V. - * Portions created by the Initial Developer are Copyright (C) 2010 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Fabian Jakobs <fabian AT ajax DOT org> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ define('ace/lib/lang', ['require', 'exports', 'module' ], function(require, exports, module) { -"use strict"; + exports.stringReverse = function(string) { return string.split("").reverse().join(""); @@ -2651,9 +1972,13 @@ exports.arrayToMap = function(arr) { }; -/** - * splice out of 'array' anything that === 'value' - */ +exports.createMap = function(props) { + var map = Object.create(null); + for (var i in props) { + map[i] = props[i]; + } + return map; +}; exports.arrayRemove = function(array, value) { for (var i = 0; i <= array.length; i++) { if (value === array[i]) { @@ -2666,6 +1991,22 @@ exports.escapeRegExp = function(str) { return str.replace(/([.*+?^${}()|[\]\/\\])/g, '\\$1'); }; +exports.escapeHTML = function(str) { + return str.replace(/&/g, "&").replace(/"/g, """).replace(/'/g, "'").replace(/</g, "<"); +}; + +exports.getMatchOffsets = function(string, regExp) { + var matches = []; + + string.replace(regExp, function(str) { + matches.push({ + offset: arguments[arguments.length-2], + length: str.length + }); + }); + + return matches; +}; exports.deferredCall = function(fcn) { var timer = null; @@ -2697,7056 +2038,4370 @@ exports.deferredCall = function(fcn) { return deferred; }; -}); -define('ace/worker/jshint', ['require', 'exports', 'module' ], function(require, exports, module) { -/*! - * JSHint, by JSHint Community. - * - * Licensed under the same slightly modified MIT license that JSLint is. - * It stops evil-doers everywhere. - * - * JSHint is a derivative work of JSLint: - * - * Copyright (c) 2002 Douglas Crockford (www.JSLint.com) - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * The Software shall be used for Good, not Evil. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * JSHint was forked from 2010-12-16 edition of JSLint. - * - */ - -/* - JSHINT is a global function. It takes two parameters. - - var myResult = JSHINT(source, option); - - The first parameter is either a string or an array of strings. If it is a - string, it will be split on '\n' or '\r'. If it is an array of strings, it - is assumed that each string represents one line. The source can be a - JavaScript text or a JSON text. - - The second parameter is an optional object of options which control the - operation of JSHINT. Most of the options are booleans: They are all - optional and have a default value of false. One of the options, predef, - can be an array of names, which will be used to declare global variables, - or an object whose keys are used as global names, with a boolean value - that determines if they are assignable. - - If it checks out, JSHINT returns true. Otherwise, it returns false. - - If false, you can inspect JSHINT.errors to find out the problems. - JSHINT.errors is an array of objects containing these members: - - { - line : The line (relative to 0) at which the lint was found - character : The character (relative to 0) at which the lint was found - reason : The problem - evidence : The text line in which the problem occurred - raw : The raw message before the details were inserted - a : The first detail - b : The second detail - c : The third detail - d : The fourth detail - } - - If a fatal error was found, a null will be the last element of the - JSHINT.errors array. - - You can request a Function Report, which shows all of the functions - and the parameters and vars that they use. This can be used to find - implied global variables and other problems. The report is in HTML and - can be inserted in an HTML <body>. - - var myReport = JSHINT.report(limited); - - If limited is true, then the report will be limited to only errors. - - You can request a data structure which contains JSHint's results. - - var myData = JSHINT.data(); - - It returns a structure with this form: - - { - errors: [ - { - line: NUMBER, - character: NUMBER, - reason: STRING, - evidence: STRING - } - ], - functions: [ - name: STRING, - line: NUMBER, - last: NUMBER, - param: [ - STRING - ], - closure: [ - STRING - ], - var: [ - STRING - ], - exception: [ - STRING - ], - outer: [ - STRING - ], - unused: [ - STRING - ], - global: [ - STRING - ], - label: [ - STRING - ] - ], - globals: [ - STRING - ], - member: { - STRING: NUMBER - }, - unuseds: [ - { - name: STRING, - line: NUMBER - } - ], - implieds: [ - { - name: STRING, - line: NUMBER - } - ], - urls: [ - STRING - ], - json: BOOLEAN - } - - Empty arrays will not be included. - -*/ - -/*jshint - evil: true, nomen: false, onevar: false, regexp: false, strict: true, boss: true, - undef: true, maxlen: 100 -*/ - -/*members "\b", "\t", "\n", "\f", "\r", "!=", "!==", "\"", "%", "(begin)", - "(breakage)", "(context)", "(error)", "(global)", "(identifier)", "(last)", - "(line)", "(loopage)", "(name)", "(onevar)", "(params)", "(scope)", - "(statement)", "(verb)", "*", "+", "++", "-", "--", "\/", "<", "<=", "==", - "===", ">", ">=", $, $$, $A, $F, $H, $R, $break, $continue, $w, Abstract, Ajax, - __filename, __dirname, ActiveXObject, Array, ArrayBuffer, ArrayBufferView, - Autocompleter, Assets, Boolean, Builder, Buffer, Browser, COM, CScript, Canvas, - CustomAnimation, Class, Control, Chain, Color, Cookie, Core, DataView, Date, - Debug, Draggable, Draggables, Droppables, Document, DomReady, DOMReady, Drag, - E, Enumerator, Enumerable, Element, Elements, Error, Effect, EvalError, Event, - Events, FadeAnimation, Field, Flash, Float32Array, Float64Array, Form, - FormField, Frame, Function, Fx, GetObject, Group, Hash, HotKey, HTMLElement, - HtmlTable, Iframe, IframeShim, Image, Int16Array, Int32Array, Int8Array, - Insertion, InputValidator, JSON, Keyboard, Locale, LN10, LN2, LOG10E, LOG2E, - MAX_VALUE, MIN_VALUE, Mask, Math, MenuItem, MoveAnimation, MooTools, Native, - NEGATIVE_INFINITY, Number, Object, ObjectRange, Option, Options, OverText, PI, - POSITIVE_INFINITY, PeriodicalExecuter, Point, Position, Prototype, RangeError, - Rectangle, ReferenceError, RegExp, ResizeAnimation, Request, RotateAnimation, - SQRT1_2, SQRT2, ScrollBar, ScriptEngine, ScriptEngineBuildVersion, - ScriptEngineMajorVersion, ScriptEngineMinorVersion, Scriptaculous, Scroller, - Slick, Slider, Selector, String, Style, SyntaxError, Sortable, Sortables, - SortableObserver, Sound, Spinner, System, Swiff, Text, TextArea, Template, - Timer, Tips, Type, TypeError, Toggle, Try, URI, URIError, URL, VBArray, WSH, - WScript, Web, Window, XMLDOM, XMLHttpRequest, XPathEvaluator, XPathException, - XPathExpression, XPathNamespace, XPathNSResolver, XPathResult, "\\", a, - addEventListener, address, alert, apply, applicationCache, arguments, arity, - asi, b, bitwise, block, blur, boolOptions, boss, browser, c, call, callee, - caller, cases, charAt, charCodeAt, character, clearInterval, clearTimeout, - close, closed, closure, comment, condition, confirm, console, constructor, - content, couch, create, css, curly, d, data, datalist, dd, debug, decodeURI, - decodeURIComponent, defaultStatus, defineClass, deserialize, devel, document, - dojo, dijit, dojox, define, edition, else, emit, encodeURI, encodeURIComponent, - entityify, eqeqeq, eqnull, errors, es5, escape, eval, event, evidence, evil, - ex, exception, exec, exps, expr, exports, FileReader, first, floor, focus, - forin, fragment, frames, from, fromCharCode, fud, funct, function, functions, - g, gc, getComputedStyle, getRow, GLOBAL, global, globals, globalstrict, - hasOwnProperty, help, history, i, id, identifier, immed, implieds, include, - indent, indexOf, init, ins, instanceOf, isAlpha, isApplicationRunning, isArray, - isDigit, isFinite, isNaN, iterator, join, jshint, - JSHINT, json, jquery, jQuery, keys, label, labelled, last, lastsemic, laxbreak, - latedef, lbp, led, left, length, line, load, loadClass, localStorage, location, - log, loopfunc, m, match, maxerr, maxlen, member,message, meta, module, moveBy, - moveTo, mootools, name, navigator, new, newcap, noarg, node, noempty, nomen, - nonew, nud, onbeforeunload, onblur, onerror, onevar, onfocus, onload, onresize, - onunload, open, openDatabase, openURL, opener, opera, outer, param, parent, - parseFloat, parseInt, passfail, plusplus, predef, print, process, prompt, - proto, prototype, prototypejs, push, quit, range, raw, reach, reason, regexp, - readFile, readUrl, regexdash, removeEventListener, replace, report, require, - reserved, resizeBy, resizeTo, resolvePath, resumeUpdates, respond, rhino, right, - runCommand, scroll, screen, scripturl, scrollBy, scrollTo, scrollbar, search, seal, send, - serialize, setInterval, setTimeout, shift, slice, sort,spawn, split, stack, - status, start, strict, sub, substr, supernew, shadow, supplant, sum, sync, - test, toLowerCase, toString, toUpperCase, toint32, token, top, trailing, type, - typeOf, Uint16Array, Uint32Array, Uint8Array, undef, unused, urls, value, valueOf, - var, version, WebSocket, white, window, Worker, wsh*/ - -/*global exports: false */ - -// We build the application inside a function so that we produce only a single -// global variable. That function will be invoked immediately, and its return -// value is the JSHINT function itself. - -var JSHINT = (function () { - "use strict"; - - var anonname, // The guessed name for anonymous functions. - -// These are operators that should not be used with the ! operator. - - bang = { - '<' : true, - '<=' : true, - '==' : true, - '===': true, - '!==': true, - '!=' : true, - '>' : true, - '>=' : true, - '+' : true, - '-' : true, - '*' : true, - '/' : true, - '%' : true - }, - -// These are the JSHint boolean options. - - boolOptions = { - asi : true, // if automatic semicolon insertion should be tolerated - bitwise : true, // if bitwise operators should not be allowed - boss : true, // if advanced usage of assignments should be allowed - browser : true, // if the standard browser globals should be predefined - couch : true, // if CouchDB globals should be predefined - curly : true, // if curly braces around all blocks should be required - debug : true, // if debugger statements should be allowed - devel : true, // if logging globals should be predefined (console, alert, etc.) - dojo : true, // if Dojo Toolkit globals should be predefined - eqeqeq : true, // if === should be required - eqnull : true, // if == null comparisons should be tolerated - es5 : true, // if ES5 syntax should be allowed - evil : true, // if eval should be allowed - expr : true, // if ExpressionStatement should be allowed as Programs - forin : true, // if for in statements must filter - globalstrict: true, // if global "use strict"; should be allowed (also enables 'strict') - immed : true, // if immediate invocations must be wrapped in parens - iterator : true, // if the `__iterator__` property should be disallowed - jquery : true, // if jQuery globals should be predefined - latedef : true, // if the use before definition should not be tolerated - laxbreak : true, // if line breaks should not be checked - loopfunc : true, // if functions should be allowed to be defined within loops - mootools : true, // if MooTools globals should be predefined - newcap : true, // if constructor names must be capitalized - noarg : true, // if arguments.caller and arguments.callee should be disallowed - node : true, // if the Node.js environment globals should be predefined - noempty : true, // if empty blocks should be disallowed - nonew : true, // if using `new` for side-effects should be disallowed - nomen : true, // if names should be checked - onevar : true, // if only one var statement per function should be allowed - passfail : true, // if the scan should stop on first error - plusplus : true, // if increment/decrement should not be allowed - proto : true, // if the `__proto__` property should be disallowed - prototypejs : true, // if Prototype and Scriptaculous globals should be predefined - regexdash : true, // if unescaped last dash (-) inside brackets should be tolerated - regexp : true, // if the . should not be allowed in regexp literals - rhino : true, // if the Rhino environment globals should be predefined - undef : true, // if variables should be declared before used - scripturl : true, // if script-targeted URLs should be tolerated - shadow : true, // if variable shadowing should be tolerated - strict : true, // require the "use strict"; pragma - sub : true, // if all forms of subscript notation are tolerated - supernew : true, // if `new function () { ... };` and `new Object;` - // should be tolerated - trailing : true, // if trailing whitespace rules apply - white : true, // if strict whitespace rules apply - wsh : true // if the Windows Scripting Host environment globals should - // be predefined - }, - -// browser contains a set of global names which are commonly provided by a -// web browser environment. - - browser = { - ArrayBuffer : false, - ArrayBufferView : false, - addEventListener: false, - applicationCache: false, - blur : false, - clearInterval : false, - clearTimeout : false, - close : false, - closed : false, - DataView : false, - defaultStatus : false, - document : false, - event : false, - FileReader : false, - Float32Array : false, - Float64Array : false, - focus : false, - frames : false, - getComputedStyle: false, - HTMLElement : false, - history : false, - Int16Array : false, - Int32Array : false, - Int8Array : false, - Image : false, - length : false, - localStorage : false, - location : false, - moveBy : false, - moveTo : false, - name : false, - navigator : false, - onbeforeunload : true, - onblur : true, - onerror : true, - onfocus : true, - onload : true, - onresize : true, - onunload : true, - open : false, - openDatabase : false, - opener : false, - Option : false, - parent : false, - print : false, - removeEventListener: false, - resizeBy : false, - resizeTo : false, - screen : false, - scroll : false, - scrollBy : false, - scrollTo : false, - setInterval : false, - setTimeout : false, - status : false, - top : false, - Uint16Array : false, - Uint32Array : false, - Uint8Array : false, - WebSocket : false, - window : false, - Worker : false, - XMLHttpRequest : false, - XPathEvaluator : false, - XPathException : false, - XPathExpression : false, - XPathNamespace : false, - XPathNSResolver : false, - XPathResult : false - }, - - couch = { - "require" : false, - respond : false, - getRow : false, - emit : false, - send : false, - start : false, - sum : false, - log : false, - exports : false, - module : false - }, - - devel = { - alert : false, - confirm : false, - console : false, - Debug : false, - opera : false, - prompt : false - }, - - dojo = { - dojo : false, - dijit : false, - dojox : false, - define : false, - "require" : false - }, - - escapes = { - '\b': '\\b', - '\t': '\\t', - '\n': '\\n', - '\f': '\\f', - '\r': '\\r', - '"' : '\\"', - '/' : '\\/', - '\\': '\\\\' - }, - - funct, // The current function - - functionicity = [ - 'closure', 'exception', 'global', 'label', - 'outer', 'unused', 'var' - ], - - functions, // All of the functions - - global, // The global scope - implied, // Implied globals - inblock, - indent, - jsonmode, - - jquery = { - '$' : false, - jQuery : false - }, - - lines, - lookahead, - member, - membersOnly, - - mootools = { - '$' : false, - '$$' : false, - Assets : false, - Browser : false, - Chain : false, - Class : false, - Color : false, - Cookie : false, - Core : false, - Document : false, - DomReady : false, - DOMReady : false, - Drag : false, - Element : false, - Elements : false, - Event : false, - Events : false, - Fx : false, - Group : false, - Hash : false, - HtmlTable : false, - Iframe : false, - IframeShim : false, - InputValidator : false, - instanceOf : false, - Keyboard : false, - Locale : false, - Mask : false, - MooTools : false, - Native : false, - Options : false, - OverText : false, - Request : false, - Scroller : false, - Slick : false, - Slider : false, - Sortables : false, - Spinner : false, - Swiff : false, - Tips : false, - Type : false, - typeOf : false, - URI : false, - Window : false - }, - - nexttoken, - - node = { - __filename : false, - __dirname : false, - exports : false, - Buffer : false, - GLOBAL : false, - global : false, - module : false, - process : false, - require : false - }, - - noreach, - option, - predefined, // Global variables defined by option - prereg, - prevtoken, - - prototypejs = { - '$' : false, - '$$' : false, - '$A' : false, - '$F' : false, - '$H' : false, - '$R' : false, - '$break' : false, - '$continue' : false, - '$w' : false, - Abstract : false, - Ajax : false, - Class : false, - Enumerable : false, - Element : false, - Event : false, - Field : false, - Form : false, - Hash : false, - Insertion : false, - ObjectRange : false, - PeriodicalExecuter: false, - Position : false, - Prototype : false, - Selector : false, - Template : false, - Toggle : false, - Try : false, - Autocompleter : false, - Builder : false, - Control : false, - Draggable : false, - Draggables : false, - Droppables : false, - Effect : false, - Sortable : false, - SortableObserver : false, - Sound : false, - Scriptaculous : false - }, - - rhino = { - defineClass : false, - deserialize : false, - gc : false, - help : false, - load : false, - loadClass : false, - print : false, - quit : false, - readFile : false, - readUrl : false, - runCommand : false, - seal : false, - serialize : false, - spawn : false, - sync : false, - toint32 : false, - version : false - }, - - scope, // The current scope - src, - stack, - -// standard contains the global names that are provided by the -// ECMAScript standard. - - standard = { - Array : false, - Boolean : false, - Date : false, - decodeURI : false, - decodeURIComponent : false, - encodeURI : false, - encodeURIComponent : false, - Error : false, - 'eval' : false, - EvalError : false, - Function : false, - hasOwnProperty : false, - isFinite : false, - isNaN : false, - JSON : false, - Math : false, - Number : false, - Object : false, - parseInt : false, - parseFloat : false, - RangeError : false, - ReferenceError : false, - RegExp : false, - String : false, - SyntaxError : false, - TypeError : false, - URIError : false - }, - - standard_member = { - E : true, - LN2 : true, - LN10 : true, - LOG2E : true, - LOG10E : true, - MAX_VALUE : true, - MIN_VALUE : true, - NEGATIVE_INFINITY : true, - PI : true, - POSITIVE_INFINITY : true, - SQRT1_2 : true, - SQRT2 : true - }, - - strict_mode, - syntax = {}, - tab, - token, - urls, - warnings, - - wsh = { - ActiveXObject : true, - Enumerator : true, - GetObject : true, - ScriptEngine : true, - ScriptEngineBuildVersion : true, - ScriptEngineMajorVersion : true, - ScriptEngineMinorVersion : true, - VBArray : true, - WSH : true, - WScript : true - }; - - // Regular expressions. Some of these are stupidly long. - var ax, cx, tx, nx, nxg, lx, ix, jx, ft; - (function () { - /*jshint maxlen:300 */ - - // unsafe comment or string - ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i; - - // unsafe characters that are silently deleted by one or more browsers - cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; - - // token - tx = /^\s*([(){}\[.,:;'"~\?\]#@]|==?=?|\/(\*(jshint|jslint|members?|global)?|=|\/)?|\*[\/=]?|\+(?:=|\++)?|-(?:=|-+)?|%=?|&[&=]?|\|[|=]?|>>?>?=?|<([\/=!]|\!(\[|--)?|<=?)?|\^=?|\!=?=?|[a-zA-Z_$][a-zA-Z0-9_$]*|[0-9]+([xX][0-9a-fA-F]+|\.[0-9]*)?([eE][+\-]?[0-9]+)?)/; - - // characters in strings that need escapement - nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; - nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; - - // star slash - lx = /\*\/|\/\*/; - - // identifier - ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/; - - // javascript url - jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; - - // catches /* falls through */ comments - ft = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/; - }()); - - function F() {} // Used by Object.create - - function is_own(object, name) { - -// The object.hasOwnProperty method fails when the property under consideration -// is named 'hasOwnProperty'. So we have to use this more convoluted form. - - return Object.prototype.hasOwnProperty.call(object, name); - } - -// Provide critical ES5 functions to ES3. - - if (typeof Array.isArray !== 'function') { - Array.isArray = function (o) { - return Object.prototype.toString.apply(o) === '[object Array]'; - }; - } - - if (typeof Object.create !== 'function') { - Object.create = function (o) { - F.prototype = o; - return new F(); - }; - } - - if (typeof Object.keys !== 'function') { - Object.keys = function (o) { - var a = [], k; - for (k in o) { - if (is_own(o, k)) { - a.push(k); - } - } - return a; - }; - } - -// Non standard methods - - if (typeof String.prototype.entityify !== 'function') { - String.prototype.entityify = function () { - return this - .replace(/&/g, '&') - .replace(/</g, '<') - .replace(/>/g, '>'); - }; - } - - if (typeof String.prototype.isAlpha !== 'function') { - String.prototype.isAlpha = function () { - return (this >= 'a' && this <= 'z\uffff') || - (this >= 'A' && this <= 'Z\uffff'); - }; - } - - if (typeof String.prototype.isDigit !== 'function') { - String.prototype.isDigit = function () { - return (this >= '0' && this <= '9'); - }; - } - - if (typeof String.prototype.supplant !== 'function') { - String.prototype.supplant = function (o) { - return this.replace(/\{([^{}]*)\}/g, function (a, b) { - var r = o[b]; - return typeof r === 'string' || typeof r === 'number' ? r : a; - }); - }; - } - - if (typeof String.prototype.name !== 'function') { - String.prototype.name = function () { - -// If the string looks like an identifier, then we can return it as is. -// If the string contains no control characters, no quote characters, and no -// backslash characters, then we can simply slap some quotes around it. -// Otherwise we must also replace the offending characters with safe -// sequences. - - if (ix.test(this)) { - return this; - } - if (nx.test(this)) { - return '"' + this.replace(nxg, function (a) { - var c = escapes[a]; - if (c) { - return c; - } - return '\\u' + ('0000' + a.charCodeAt().toString(16)).slice(-4); - }) + '"'; - } - return '"' + this + '"'; - }; - } - - - function combine(t, o) { - var n; - for (n in o) { - if (is_own(o, n)) { - t[n] = o[n]; - } - } - } - - function assume() { - if (option.couch) - combine(predefined, couch); - - if (option.rhino) - combine(predefined, rhino); - - if (option.prototypejs) - combine(predefined, prototypejs); - - if (option.node) - combine(predefined, node); - - if (option.devel) - combine(predefined, devel); - - if (option.dojo) - combine(predefined, dojo); - - if (option.browser) - combine(predefined, browser); - - if (option.jquery) - combine(predefined, jquery); - - if (option.mootools) - combine(predefined, mootools); - - if (option.wsh) - combine(predefined, wsh); - - if (option.globalstrict && option.strict !== false) - option.strict = true; - } - - -// Produce an error warning. - - function quit(message, line, chr) { - var percentage = Math.floor((line / lines.length) * 100); - - throw { - name: 'JSHintError', - line: line, - character: chr, - message: message + " (" + percentage + "% scanned)." - }; - } - - function warning(m, t, a, b, c, d) { - var ch, l, w; - t = t || nexttoken; - if (t.id === '(end)') { // `~ - t = token; - } - l = t.line || 0; - ch = t.from || 0; - w = { - id: '(error)', - raw: m, - evidence: lines[l - 1] || '', - line: l, - character: ch, - a: a, - b: b, - c: c, - d: d - }; - w.reason = m.supplant(w); - JSHINT.errors.push(w); - if (option.passfail) { - quit('Stopping. ', l, ch); - } - warnings += 1; - if (warnings >= option.maxerr) { - quit("Too many errors.", l, ch); - } - return w; - } - - function warningAt(m, l, ch, a, b, c, d) { - return warning(m, { - line: l, - from: ch - }, a, b, c, d); - } - - function error(m, t, a, b, c, d) { - var w = warning(m, t, a, b, c, d); - quit("Stopping, unable to continue.", w.line, w.character); - } - function errorAt(m, l, ch, a, b, c, d) { - return error(m, { - line: l, - from: ch - }, a, b, c, d); - } - - - -// lexical analysis and token construction - - var lex = (function lex() { - var character, from, line, s; - -// Private lex methods - - function nextLine() { - var at, - tw; // trailing whitespace check - - if (line >= lines.length) - return false; - - character = 1; - s = lines[line]; - line += 1; - at = s.search(/ \t/); - - if (at >= 0) - warningAt("Mixed spaces and tabs.", line, at + 1); - - s = s.replace(/\t/g, tab); - at = s.search(cx); - - if (at >= 0) - warningAt("Unsafe character.", line, at); - - if (option.maxlen && option.maxlen < s.length) - warningAt("Line too long.", line, s.length); - - // Check for trailing whitespaces - tw = s.search(/\s+$/); - if (option.trailing && ~tw && !~s.search(/^\s+$/)) - warningAt("Trailing whitespace.", line, tw); - - return true; - } - -// Produce a token object. The token inherits from a syntax symbol. - - function it(type, value) { - var i, t; - if (type === '(color)' || type === '(range)') { - t = {type: type}; - } else if (type === '(punctuator)' || - (type === '(identifier)' && is_own(syntax, value))) { - t = syntax[value] || syntax['(error)']; - } else { - t = syntax[type]; - } - t = Object.create(t); - if (type === '(string)' || type === '(range)') { - if (!option.scripturl && jx.test(value)) { - warningAt("Script URL.", line, from); - } - } - if (type === '(identifier)') { - t.identifier = true; - if (value === '__proto__' && !option.proto) { - warningAt("The '{a}' property is deprecated.", - line, from, value); - } else if (value === '__iterator__' && !option.iterator) { - warningAt("'{a}' is only available in JavaScript 1.7.", - line, from, value); - } else if (option.nomen && (value.charAt(0) === '_' || - value.charAt(value.length - 1) === '_')) { - warningAt("Unexpected {a} in '{b}'.", line, from, - "dangling '_'", value); - } - } - t.value = value; - t.line = line; - t.character = character; - t.from = from; - i = t.id; - if (i !== '(endline)') { - prereg = i && - (('(,=:[!&|?{};'.indexOf(i.charAt(i.length - 1)) >= 0) || - i === 'return'); - } - return t; - } - -// Public lex methods - - return { - init: function (source) { - if (typeof source === 'string') { - lines = source - .replace(/\r\n/g, '\n') - .replace(/\r/g, '\n') - .split('\n'); - } else { - lines = source; - } - - // If the first line is a shebang (#!), make it a blank and move on. - // Shebangs are used by Node scripts. - if (lines[0] && lines[0].substr(0, 2) == '#!') - lines[0] = ''; - - line = 0; - nextLine(); - from = 1; - }, - - range: function (begin, end) { - var c, value = ''; - from = character; - if (s.charAt(0) !== begin) { - errorAt("Expected '{a}' and instead saw '{b}'.", - line, character, begin, s.charAt(0)); - } - for (;;) { - s = s.slice(1); - character += 1; - c = s.charAt(0); - switch (c) { - case '': - errorAt("Missing '{a}'.", line, character, c); - break; - case end: - s = s.slice(1); - character += 1; - return it('(range)', value); - case '\\': - warningAt("Unexpected '{a}'.", line, character, c); - } - value += c; - } - - }, +exports.delayedCall = function(fcn, defaultTimeout) { + var timer = null; + var callback = function() { + timer = null; + fcn(); + }; -// token -- this is called by advance to get the next token. + var _self = function(timeout) { + timer && clearTimeout(timer); + timer = setTimeout(callback, timeout || defaultTimeout); + }; - token: function () { - var b, c, captures, d, depth, high, i, l, low, q, t; + _self.delay = _self; + _self.schedule = function(timeout) { + if (timer == null) + timer = setTimeout(callback, timeout || 0); + }; - function match(x) { - var r = x.exec(s), r1; - if (r) { - l = r[0].length; - r1 = r[1]; - c = r1.charAt(0); - s = s.substr(l); - from = character + l - r1.length; - character += l; - return r1; - } - } + _self.call = function() { + this.cancel(); + fcn(); + }; - function string(x) { - var c, j, r = ''; + _self.cancel = function() { + timer && clearTimeout(timer); + timer = null; + }; - if (jsonmode && x !== '"') { - warningAt("Strings must use doublequote.", - line, character); - } + _self.isPending = function() { + return timer; + }; - function esc(n) { - var i = parseInt(s.substr(j + 1, n), 16); - j += n; - if (i >= 32 && i <= 126 && - i !== 34 && i !== 92 && i !== 39) { - warningAt("Unnecessary escapement.", line, character); - } - character += n; - c = String.fromCharCode(i); - } - j = 0; - for (;;) { - while (j >= s.length) { - j = 0; - if (!nextLine()) { - errorAt("Unclosed string.", line, from); - } - } - c = s.charAt(j); - if (c === x) { - character += 1; - s = s.substr(j + 1); - return it('(string)', r, x); - } - if (c < ' ') { - if (c === '\n' || c === '\r') { - break; - } - warningAt("Control character in string: {a}.", - line, character + j, s.slice(0, j)); - } else if (c === '\\') { - j += 1; - character += 1; - c = s.charAt(j); - switch (c) { - case '\\': - case '"': - case '/': - break; - case '\'': - if (jsonmode) { - warningAt("Avoid \\'.", line, character); - } - break; - case 'b': - c = '\b'; - break; - case 'f': - c = '\f'; - break; - case 'n': - c = '\n'; - break; - case 'r': - c = '\r'; - break; - case 't': - c = '\t'; - break; - case 'u': - esc(4); - break; - case 'v': - if (jsonmode) { - warningAt("Avoid \\v.", line, character); - } - c = '\v'; - break; - case 'x': - if (jsonmode) { - warningAt("Avoid \\x-.", line, character); - } - esc(2); - break; - default: - warningAt("Bad escapement.", line, character); - } - } - r += c; - character += 1; - j += 1; - } - } + return _self; +}; +}); +define('ace/mode/javascript/jshint', ['require', 'exports', 'module' ], function(require, exports, module) { - for (;;) { - if (!s) { - return it(nextLine() ? '(endline)' : '(end)', ''); - } - t = match(tx); - if (!t) { - t = ''; - c = ''; - while (s && s < '!') { - s = s.substr(1); - } - if (s) { - errorAt("Unexpected '{a}'.", line, character, s.substr(0, 1)); - } - } else { - - // identifier - - if (c.isAlpha() || c === '_' || c === '$') { - return it('(identifier)', t); - } - - // number - - if (c.isDigit()) { - if (!isFinite(Number(t))) { - warningAt("Bad number '{a}'.", - line, character, t); - } - if (s.substr(0, 1).isAlpha()) { - warningAt("Missing space after '{a}'.", - line, character, t); - } - if (c === '0') { - d = t.substr(1, 1); - if (d.isDigit()) { - if (token.id !== '.') { - warningAt("Don't use extra leading zeros '{a}'.", - line, character, t); - } - } else if (jsonmode && (d === 'x' || d === 'X')) { - warningAt("Avoid 0x-. '{a}'.", - line, character, t); - } - } - if (t.substr(t.length - 1) === '.') { - warningAt( +var JSHINT = (function () { + + + var anonname, // The guessed name for anonymous functions. + + bang = { + "<" : true, + "<=" : true, + "==" : true, + "===": true, + "!==": true, + "!=" : true, + ">" : true, + ">=" : true, + "+" : true, + "-" : true, + "*" : true, + "/" : true, + "%" : true + }, + boolOptions = { + asi : true, // if automatic semicolon insertion should be tolerated + bitwise : true, // if bitwise operators should not be allowed + boss : true, // if advanced usage of assignments should be allowed + browser : true, // if the standard browser globals should be predefined + camelcase : true, // if identifiers should be required in camel case + couch : true, // if CouchDB globals should be predefined + curly : true, // if curly braces around all blocks should be required + debug : true, // if debugger statements should be allowed + devel : true, // if logging globals should be predefined (console, + dojo : true, // if Dojo Toolkit globals should be predefined + eqeqeq : true, // if === should be required + eqnull : true, // if == null comparisons should be tolerated + es5 : true, // if ES5 syntax should be allowed + esnext : true, // if es.next specific syntax should be allowed + evil : true, // if eval should be allowed + expr : true, // if ExpressionStatement should be allowed as Programs + forin : true, // if for in statements must filter + funcscope : true, // if only function scope should be used for scope tests + globalstrict: true, // if global should be allowed (also + immed : true, // if immediate invocations must be wrapped in parens + iterator : true, // if the `__iterator__` property should be allowed + jquery : true, // if jQuery globals should be predefined + lastsemic : true, // if semicolons may be ommitted for the trailing + latedef : true, // if the use before definition should not be tolerated + laxbreak : true, // if line breaks should not be checked + laxcomma : true, // if line breaks should not be checked around commas + loopfunc : true, // if functions should be allowed to be defined within + mootools : true, // if MooTools globals should be predefined + multistr : true, // allow multiline strings + newcap : true, // if constructor names must be capitalized + noarg : true, // if arguments.caller and arguments.callee should be + node : true, // if the Node.js environment globals should be + noempty : true, // if empty blocks should be disallowed + nonew : true, // if using `new` for side-effects should be disallowed + nonstandard : true, // if non-standard (but widely adopted) globals should + nomen : true, // if names should be checked + onevar : true, // if only one var statement per function should be + onecase : true, // if one case switch statements should be allowed + passfail : true, // if the scan should stop on first error + plusplus : true, // if increment/decrement should not be allowed + proto : true, // if the `__proto__` property should be allowed + prototypejs : true, // if Prototype and Scriptaculous globals should be + regexdash : true, // if unescaped first/last dash (-) inside brackets + regexp : true, // if the . should not be allowed in regexp literals + rhino : true, // if the Rhino environment globals should be predefined + undef : true, // if variables should be declared before used + unused : true, // if variables should be always used + scripturl : true, // if script-targeted URLs should be tolerated + shadow : true, // if variable shadowing should be tolerated + smarttabs : true, // if smarttabs should be tolerated + strict : true, // require the pragma + sub : true, // if all forms of subscript notation are tolerated + supernew : true, // if `new function () { ... };` and `new Object;` + trailing : true, // if trailing whitespace rules apply + validthis : true, // if 'this' inside a non-constructor function is valid. + withstmt : true, // if with statements should be allowed + white : true, // if strict whitespace rules apply + worker : true, // if Web Worker script symbols should be allowed + wsh : true, // if the Windows Scripting Host environment globals + yui : true // YUI variables should be predefined + }, + valOptions = { + maxlen : false, + indent : false, + maxerr : false, + predef : false, + quotmark : false, //'single'|'double'|true + scope : false, + maxstatements: false, // {int} max statements per function + maxdepth : false, // {int} max nested block depth per function + maxparams : false, // {int} max params per function + maxcomplexity: false // {int} max cyclomatic complexity per function + }, + invertedOptions = { + bitwise : true, + forin : true, + newcap : true, + nomen : true, + plusplus : true, + regexp : true, + undef : true, + white : true, + eqeqeq : true, + onevar : true + }, + renamedOptions = { + eqeq : "eqeqeq", + vars : "onevar", + windows : "wsh" + }, + browser = { + ArrayBuffer : false, + ArrayBufferView : false, + Audio : false, + Blob : false, + addEventListener : false, + applicationCache : false, + atob : false, + blur : false, + btoa : false, + clearInterval : false, + clearTimeout : false, + close : false, + closed : false, + DataView : false, + DOMParser : false, + defaultStatus : false, + document : false, + event : false, + FileReader : false, + Float32Array : false, + Float64Array : false, + FormData : false, + focus : false, + frames : false, + getComputedStyle : false, + HTMLElement : false, + HTMLAnchorElement : false, + HTMLBaseElement : false, + HTMLBlockquoteElement : false, + HTMLBodyElement : false, + HTMLBRElement : false, + HTMLButtonElement : false, + HTMLCanvasElement : false, + HTMLDirectoryElement : false, + HTMLDivElement : false, + HTMLDListElement : false, + HTMLFieldSetElement : false, + HTMLFontElement : false, + HTMLFormElement : false, + HTMLFrameElement : false, + HTMLFrameSetElement : false, + HTMLHeadElement : false, + HTMLHeadingElement : false, + HTMLHRElement : false, + HTMLHtmlElement : false, + HTMLIFrameElement : false, + HTMLImageElement : false, + HTMLInputElement : false, + HTMLIsIndexElement : false, + HTMLLabelElement : false, + HTMLLayerElement : false, + HTMLLegendElement : false, + HTMLLIElement : false, + HTMLLinkElement : false, + HTMLMapElement : false, + HTMLMenuElement : false, + HTMLMetaElement : false, + HTMLModElement : false, + HTMLObjectElement : false, + HTMLOListElement : false, + HTMLOptGroupElement : false, + HTMLOptionElement : false, + HTMLParagraphElement : false, + HTMLParamElement : false, + HTMLPreElement : false, + HTMLQuoteElement : false, + HTMLScriptElement : false, + HTMLSelectElement : false, + HTMLStyleElement : false, + HTMLTableCaptionElement : false, + HTMLTableCellElement : false, + HTMLTableColElement : false, + HTMLTableElement : false, + HTMLTableRowElement : false, + HTMLTableSectionElement : false, + HTMLTextAreaElement : false, + HTMLTitleElement : false, + HTMLUListElement : false, + HTMLVideoElement : false, + history : false, + Int16Array : false, + Int32Array : false, + Int8Array : false, + Image : false, + length : false, + localStorage : false, + location : false, + MessageChannel : false, + MessageEvent : false, + MessagePort : false, + moveBy : false, + moveTo : false, + MutationObserver : false, + name : false, + Node : false, + NodeFilter : false, + navigator : false, + onbeforeunload : true, + onblur : true, + onerror : true, + onfocus : true, + onload : true, + onresize : true, + onunload : true, + open : false, + openDatabase : false, + opener : false, + Option : false, + parent : false, + print : false, + removeEventListener : false, + resizeBy : false, + resizeTo : false, + screen : false, + scroll : false, + scrollBy : false, + scrollTo : false, + sessionStorage : false, + setInterval : false, + setTimeout : false, + SharedWorker : false, + status : false, + top : false, + Uint16Array : false, + Uint32Array : false, + Uint8Array : false, + WebSocket : false, + window : false, + Worker : false, + XMLHttpRequest : false, + XMLSerializer : false, + XPathEvaluator : false, + XPathException : false, + XPathExpression : false, + XPathNamespace : false, + XPathNSResolver : false, + XPathResult : false + }, + + couch = { + "require" : false, + respond : false, + getRow : false, + emit : false, + send : false, + start : false, + sum : false, + log : false, + exports : false, + module : false, + provides : false + }, + + declared, // Globals that were declared using /*global ... */ syntax. + + devel = { + alert : false, + confirm : false, + console : false, + Debug : false, + opera : false, + prompt : false + }, + + dojo = { + dojo : false, + dijit : false, + dojox : false, + define : false, + "require" : false + }, + + funct, // The current function + + functionicity = [ + "closure", "exception", "global", "label", + "outer", "unused", "var" + ], + + functions, // All of the functions + + global, // The global scope + implied, // Implied globals + inblock, + indent, + jsonmode, + + jquery = { + "$" : false, + jQuery : false + }, + + lines, + lookahead, + member, + membersOnly, + + mootools = { + "$" : false, + "$$" : false, + Asset : false, + Browser : false, + Chain : false, + Class : false, + Color : false, + Cookie : false, + Core : false, + Document : false, + DomReady : false, + DOMEvent : false, + DOMReady : false, + Drag : false, + Element : false, + Elements : false, + Event : false, + Events : false, + Fx : false, + Group : false, + Hash : false, + HtmlTable : false, + Iframe : false, + IframeShim : false, + InputValidator : false, + instanceOf : false, + Keyboard : false, + Locale : false, + Mask : false, + MooTools : false, + Native : false, + Options : false, + OverText : false, + Request : false, + Scroller : false, + Slick : false, + Slider : false, + Sortables : false, + Spinner : false, + Swiff : false, + Tips : false, + Type : false, + typeOf : false, + URI : false, + Window : false + }, + + nexttoken, + + node = { + __filename : false, + __dirname : false, + Buffer : false, + console : false, + exports : true, // In Node it is ok to exports = module.exports = foo(); + GLOBAL : false, + global : false, + module : false, + process : false, + require : false, + setTimeout : false, + clearTimeout : false, + setInterval : false, + clearInterval : false + }, + + noreach, + option, + predefined, // Global variables defined by option + prereg, + prevtoken, + + prototypejs = { + "$" : false, + "$$" : false, + "$A" : false, + "$F" : false, + "$H" : false, + "$R" : false, + "$break" : false, + "$continue" : false, + "$w" : false, + Abstract : false, + Ajax : false, + Class : false, + Enumerable : false, + Element : false, + Event : false, + Field : false, + Form : false, + Hash : false, + Insertion : false, + ObjectRange : false, + PeriodicalExecuter: false, + Position : false, + Prototype : false, + Selector : false, + Template : false, + Toggle : false, + Try : false, + Autocompleter : false, + Builder : false, + Control : false, + Draggable : false, + Draggables : false, + Droppables : false, + Effect : false, + Sortable : false, + SortableObserver : false, + Sound : false, + Scriptaculous : false + }, + + quotmark, + + rhino = { + defineClass : false, + deserialize : false, + gc : false, + help : false, + importPackage: false, + "java" : false, + load : false, + loadClass : false, + print : false, + quit : false, + readFile : false, + readUrl : false, + runCommand : false, + seal : false, + serialize : false, + spawn : false, + sync : false, + toint32 : false, + version : false + }, + + scope, // The current scope + stack, + standard = { + Array : false, + Boolean : false, + Date : false, + decodeURI : false, + decodeURIComponent : false, + encodeURI : false, + encodeURIComponent : false, + Error : false, + "eval" : false, + EvalError : false, + Function : false, + hasOwnProperty : false, + isFinite : false, + isNaN : false, + JSON : false, + Map : false, + Math : false, + NaN : false, + Number : false, + Object : false, + parseInt : false, + parseFloat : false, + RangeError : false, + ReferenceError : false, + RegExp : false, + Set : false, + String : false, + SyntaxError : false, + TypeError : false, + URIError : false, + WeakMap : false + }, + nonstandard = { + escape : false, + unescape : false + }, + + directive, + syntax = {}, + tab, + token, + unuseds, + urls, + useESNextSyntax, + warnings, + + worker = { + importScripts : true, + postMessage : true, + self : true + }, + + wsh = { + ActiveXObject : true, + Enumerator : true, + GetObject : true, + ScriptEngine : true, + ScriptEngineBuildVersion : true, + ScriptEngineMajorVersion : true, + ScriptEngineMinorVersion : true, + VBArray : true, + WSH : true, + WScript : true, + XDomainRequest : true + }, + + yui = { + YUI : false, + Y : false, + YUI_config : false + }; + var ax, cx, tx, nx, nxg, lx, ix, jx, ft; + (function () { + ax = /@cc|<\/?|script|\]\s*\]|<\s*!|</i; + cx = /[\u0000-\u001f\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + 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]+)?)/; + nx = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/; + nxg = /[\u0000-\u001f&<"\/\\\u007f-\u009f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g; + lx = /\*\//; + ix = /^([a-zA-Z_$][a-zA-Z0-9_$]*)$/; + jx = /^(?:javascript|jscript|ecmascript|vbscript|mocha|livescript)\s*:/i; + ft = /^\s*\/\*\s*falls\sthrough\s*\*\/\s*$/; + }()); + + function F() {} // Used by Object.create + + function is_own(object, name) { + return Object.prototype.hasOwnProperty.call(object, name); + } + + function checkOption(name, t) { + if (valOptions[name] === undefined && boolOptions[name] === undefined) { + warning("Bad option: '" + name + "'.", t); + } + } + + function isString(obj) { + return Object.prototype.toString.call(obj) === "[object String]"; + } + + if (typeof Array.isArray !== "function") { + Array.isArray = function (o) { + return Object.prototype.toString.apply(o) === "[object Array]"; + }; + } + + if (!Array.prototype.forEach) { + Array.prototype.forEach = function (fn, scope) { + var len = this.length; + + for (var i = 0; i < len; i++) { + fn.call(scope || this, this[i], i, this); + } + }; + } + + if (!Array.prototype.indexOf) { + Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) { + if (this === null || this === undefined) { + throw new TypeError(); + } + + var t = new Object(this); + var len = t.length >>> 0; + + if (len === 0) { + return -1; + } + + var n = 0; + if (arguments.length > 0) { + n = Number(arguments[1]); + if (n != n) { // shortcut for verifying if it's NaN + n = 0; + } else if (n !== 0 && n != Infinity && n != -Infinity) { + n = (n > 0 || -1) * Math.floor(Math.abs(n)); + } + } + + if (n >= len) { + return -1; + } + + var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0); + for (; k < len; k++) { + if (k in t && t[k] === searchElement) { + return k; + } + } + + return -1; + }; + } + + if (typeof Object.create !== "function") { + Object.create = function (o) { + F.prototype = o; + return new F(); + }; + } + + if (typeof Object.keys !== "function") { + Object.keys = function (o) { + var a = [], k; + for (k in o) { + if (is_own(o, k)) { + a.push(k); + } + } + return a; + }; + } + + function isAlpha(str) { + return (str >= "a" && str <= "z\uffff") || + (str >= "A" && str <= "Z\uffff"); + } + + function isDigit(str) { + return (str >= "0" && str <= "9"); + } + + function isIdentifier(token, value) { + if (!token) + return false; + + if (!token.identifier || token.value !== value) + return false; + + return true; + } + + function supplant(str, data) { + return str.replace(/\{([^{}]*)\}/g, function (a, b) { + var r = data[b]; + return typeof r === "string" || typeof r === "number" ? r : a; + }); + } + + function combine(t, o) { + var n; + for (n in o) { + if (is_own(o, n) && !is_own(JSHINT.blacklist, n)) { + t[n] = o[n]; + } + } + } + + function updatePredefined() { + Object.keys(JSHINT.blacklist).forEach(function (key) { + delete predefined[key]; + }); + } + + function assume() { + if (option.couch) { + combine(predefined, couch); + } + + if (option.rhino) { + combine(predefined, rhino); + } + + if (option.prototypejs) { + combine(predefined, prototypejs); + } + + if (option.node) { + combine(predefined, node); + option.globalstrict = true; + } + + if (option.devel) { + combine(predefined, devel); + } + + if (option.dojo) { + combine(predefined, dojo); + } + + if (option.browser) { + combine(predefined, browser); + } + + if (option.nonstandard) { + combine(predefined, nonstandard); + } + + if (option.jquery) { + combine(predefined, jquery); + } + + if (option.mootools) { + combine(predefined, mootools); + } + + if (option.worker) { + combine(predefined, worker); + } + + if (option.wsh) { + combine(predefined, wsh); + } + + if (option.esnext) { + useESNextSyntax(); + } + + if (option.globalstrict && option.strict !== false) { + option.strict = true; + } + + if (option.yui) { + combine(predefined, yui); + } + } + function quit(message, line, chr) { + var percentage = Math.floor((line / lines.length) * 100); + + throw { + name: "JSHintError", + line: line, + character: chr, + message: message + " (" + percentage + "% scanned).", + raw: message + }; + } + + function isundef(scope, m, t, a) { + return JSHINT.undefs.push([scope, m, t, a]); + } + + function warning(m, t, a, b, c, d) { + var ch, l, w; + t = t || nexttoken; + if (t.id === "(end)") { // `~ + t = token; + } + l = t.line || 0; + ch = t.from || 0; + w = { + id: "(error)", + raw: m, + evidence: lines[l - 1] || "", + line: l, + character: ch, + scope: JSHINT.scope, + a: a, + b: b, + c: c, + d: d + }; + w.reason = supplant(m, w); + JSHINT.errors.push(w); + if (option.passfail) { + quit("Stopping. ", l, ch); + } + warnings += 1; + if (warnings >= option.maxerr) { + quit("Too many errors.", l, ch); + } + return w; + } + + function warningAt(m, l, ch, a, b, c, d) { + return warning(m, { + line: l, + from: ch + }, a, b, c, d); + } + + function error(m, t, a, b, c, d) { + warning(m, t, a, b, c, d); + } + + function errorAt(m, l, ch, a, b, c, d) { + return error(m, { + line: l, + from: ch + }, a, b, c, d); + } + function addInternalSrc(elem, src) { + var i; + i = { + id: "(internal)", + elem: elem, + value: src + }; + JSHINT.internals.push(i); + return i; + } + + var lex = (function lex() { + var character, from, line, s; + + function nextLine() { + var at, + match, + tw; // trailing whitespace check + + if (line >= lines.length) + return false; + + character = 1; + s = lines[line]; + line += 1; + if (option.smarttabs) { + match = s.match(/(\/\/)? \t/); + at = match && !match[1] ? 0 : -1; + } else { + at = s.search(/ \t|\t [^\*]/); + } + + if (at >= 0) + warningAt("Mixed spaces and tabs.", line, at + 1); + + s = s.replace(/\t/g, tab); + at = s.search(cx); + + if (at >= 0) + warningAt("Unsafe character.", line, at); + + if (option.maxlen && option.maxlen < s.length) + warningAt("Line too long.", line, s.length); + tw = option.trailing && s.match(/^(.*?)\s+$/); + if (tw && !/^\s+$/.test(s)) { + warningAt("Trailing whitespace.", line, tw[1].length + 1); + } + return true; + } + + function it(type, value) { + var i, t; + + function checkName(name) { + if (!option.proto && name === "__proto__") { + warningAt("The '{a}' property is deprecated.", line, from, name); + return; + } + + if (!option.iterator && name === "__iterator__") { + warningAt("'{a}' is only available in JavaScript 1.7.", line, from, name); + return; + } + + var hasDangling = /^(_+.*|.*_+)$/.test(name); + + if (option.nomen && hasDangling && name !== "_") { + if (option.node && token.id !== "." && /^(__dirname|__filename)$/.test(name)) + return; + + warningAt("Unexpected {a} in '{b}'.", line, from, "dangling '_'", name); + return; + } + + if (option.camelcase) { + if (name.replace(/^_+/, "").indexOf("_") > -1 && !name.match(/^[A-Z0-9_]*$/)) { + warningAt("Identifier '{a}' is not in camel case.", line, from, value); + } + } + } + + if (type === "(color)" || type === "(range)") { + t = {type: type}; + } else if (type === "(punctuator)" || + (type === "(identifier)" && is_own(syntax, value))) { + t = syntax[value] || syntax["(error)"]; + } else { + t = syntax[type]; + } + + t = Object.create(t); + + if (type === "(string)" || type === "(range)") { + if (!option.scripturl && jx.test(value)) { + warningAt("Script URL.", line, from); + } + } + + if (type === "(identifier)") { + t.identifier = true; + checkName(value); + } + + t.value = value; + t.line = line; + t.character = character; + t.from = from; + i = t.id; + if (i !== "(endline)") { + prereg = i && + (("(,=:[!&|?{};".indexOf(i.charAt(i.length - 1)) >= 0) || + i === "return" || + i === "case"); + } + return t; + } + return { + init: function (source) { + if (typeof source === "string") { + lines = source + .replace(/\r\n/g, "\n") + .replace(/\r/g, "\n") + .split("\n"); + } else { + lines = source; + } + if (lines[0] && lines[0].substr(0, 2) === "#!") + lines[0] = ""; + + line = 0; + nextLine(); + from = 1; + }, + + range: function (begin, end) { + var c, value = ""; + from = character; + if (s.charAt(0) !== begin) { + errorAt("Expected '{a}' and instead saw '{b}'.", + line, character, begin, s.charAt(0)); + } + for (;;) { + s = s.slice(1); + character += 1; + c = s.charAt(0); + switch (c) { + case "": + errorAt("Missing '{a}'.", line, character, c); + break; + case end: + s = s.slice(1); + character += 1; + return it("(range)", value); + case "\\": + warningAt("Unexpected '{a}'.", line, character, c); + } + value += c; + } + + }, + token: function () { + var b, c, captures, d, depth, high, i, l, low, q, t, isLiteral, isInRange, n; + + function match(x) { + var r = x.exec(s), r1; + + if (r) { + l = r[0].length; + r1 = r[1]; + c = r1.charAt(0); + s = s.substr(l); + from = character + l - r1.length; + character += l; + return r1; + } + } + + function string(x) { + var c, j, r = "", allowNewLine = false; + + if (jsonmode && x !== "\"") { + warningAt("Strings must use doublequote.", + line, character); + } + + if (option.quotmark) { + if (option.quotmark === "single" && x !== "'") { + warningAt("Strings must use singlequote.", + line, character); + } else if (option.quotmark === "double" && x !== "\"") { + warningAt("Strings must use doublequote.", + line, character); + } else if (option.quotmark === true) { + quotmark = quotmark || x; + if (quotmark !== x) { + warningAt("Mixed double and single quotes.", + line, character); + } + } + } + + function esc(n) { + var i = parseInt(s.substr(j + 1, n), 16); + j += n; + if (i >= 32 && i <= 126 && + i !== 34 && i !== 92 && i !== 39) { + warningAt("Unnecessary escapement.", line, character); + } + character += n; + c = String.fromCharCode(i); + } + + j = 0; + +unclosedString: + for (;;) { + while (j >= s.length) { + j = 0; + + var cl = line, cf = from; + if (!nextLine()) { + errorAt("Unclosed string.", cl, cf); + break unclosedString; + } + + if (allowNewLine) { + allowNewLine = false; + } else { + warningAt("Unclosed string.", cl, cf); + } + } + + c = s.charAt(j); + if (c === x) { + character += 1; + s = s.substr(j + 1); + return it("(string)", r, x); + } + + if (c < " ") { + if (c === "\n" || c === "\r") { + break; + } + warningAt("Control character in string: {a}.", + line, character + j, s.slice(0, j)); + } else if (c === "\\") { + j += 1; + character += 1; + c = s.charAt(j); + n = s.charAt(j + 1); + switch (c) { + case "\\": + case "\"": + case "/": + break; + case "\'": + if (jsonmode) { + warningAt("Avoid \\'.", line, character); + } + break; + case "b": + c = "\b"; + break; + case "f": + c = "\f"; + break; + case "n": + c = "\n"; + break; + case "r": + c = "\r"; + break; + case "t": + c = "\t"; + break; + case "0": + c = "\0"; + if (n >= 0 && n <= 7 && directive["use strict"]) { + warningAt( + "Octal literals are not allowed in strict mode.", + line, character); + } + break; + case "u": + esc(4); + break; + case "v": + if (jsonmode) { + warningAt("Avoid \\v.", line, character); + } + c = "\v"; + break; + case "x": + if (jsonmode) { + warningAt("Avoid \\x-.", line, character); + } + esc(2); + break; + case "": + allowNewLine = true; + if (option.multistr) { + if (jsonmode) { + warningAt("Avoid EOL escapement.", line, character); + } + c = ""; + character -= 1; + break; + } + warningAt("Bad escapement of EOL. Use option multistr if needed.", + line, character); + break; + case "!": + if (s.charAt(j - 2) === "<") + break; + default: + warningAt("Bad escapement.", line, character); + } + } + r += c; + character += 1; + j += 1; + } + } + + for (;;) { + if (!s) { + return it(nextLine() ? "(endline)" : "(end)", ""); + } + + t = match(tx); + + if (!t) { + t = ""; + c = ""; + while (s && s < "!") { + s = s.substr(1); + } + if (s) { + errorAt("Unexpected '{a}'.", line, character, s.substr(0, 1)); + s = ""; + } + } else { + + if (isAlpha(c) || c === "_" || c === "$") { + return it("(identifier)", t); + } + + if (isDigit(c)) { + if (!isFinite(Number(t))) { + warningAt("Bad number '{a}'.", + line, character, t); + } + if (isAlpha(s.substr(0, 1))) { + warningAt("Missing space after '{a}'.", + line, character, t); + } + if (c === "0") { + d = t.substr(1, 1); + if (isDigit(d)) { + if (token.id !== ".") { + warningAt("Don't use extra leading zeros '{a}'.", + line, character, t); + } + } else if (jsonmode && (d === "x" || d === "X")) { + warningAt("Avoid 0x-. '{a}'.", + line, character, t); + } + } + if (t.substr(t.length - 1) === ".") { + warningAt( "A trailing decimal point can be confused with a dot '{a}'.", line, character, t); - } - return it('(number)', t); - } - switch (t) { - - // string - - case '"': - case "'": - return string(t); - - // // comment - - case '//': - if (src) { - warningAt("Unexpected comment.", line, character); - } - s = ''; - token.comment = true; - break; - - // /* comment - - case '/*': - if (src) { - warningAt("Unexpected comment.", line, character); - } - for (;;) { - i = s.search(lx); - if (i >= 0) { - break; - } - if (!nextLine()) { - errorAt("Unclosed comment.", line, character); - } - } - character += i + 2; - if (s.substr(i, 1) === '/') { - errorAt("Nested comment.", line, character); - } - s = s.substr(i + 2); - token.comment = true; - break; - - // /*members /*jshint /*global - - case '/*members': - case '/*member': - case '/*jshint': - case '/*jslint': - case '/*global': - case '*/': - return { - value: t, - type: 'special', - line: line, - character: character, - from: from - }; - - case '': - break; - // / - case '/': - if (token.id === '/=') { - errorAt( -"A regular expression literal can be confused with '/='.", line, from); - } - if (prereg) { - depth = 0; - captures = 0; - l = 0; - for (;;) { - b = true; - c = s.charAt(l); - l += 1; - switch (c) { - case '': - errorAt("Unclosed regular expression.", - line, from); - return; - case '/': - if (depth > 0) { - warningAt("Unescaped '{a}'.", - line, from + l, '/'); - } - c = s.substr(0, l - 1); - q = { - g: true, - i: true, - m: true - }; - while (q[s.charAt(l)] === true) { - q[s.charAt(l)] = false; - l += 1; - } - character += l; - s = s.substr(l); - q = s.charAt(0); - if (q === '/' || q === '*') { - errorAt("Confusing regular expression.", - line, from); - } - return it('(regexp)', c); - case '\\': - c = s.charAt(l); - if (c < ' ') { - warningAt( + } + return it("(number)", t); + } + switch (t) { + + case "\"": + case "'": + return string(t); + + case "//": + s = ""; + token.comment = true; + break; + + case "/*": + for (;;) { + i = s.search(lx); + if (i >= 0) { + break; + } + if (!nextLine()) { + errorAt("Unclosed comment.", line, character); + } + } + s = s.substr(i + 2); + token.comment = true; + break; + + case "/*members": + case "/*member": + case "/*jshint": + case "/*jslint": + case "/*global": + case "*/": + return { + value: t, + type: "special", + line: line, + character: character, + from: from + }; + + case "": + break; + case "/": + if (s.charAt(0) === "=") { + errorAt("A regular expression literal can be confused with '/='.", + line, from); + } + + if (prereg) { + depth = 0; + captures = 0; + l = 0; + for (;;) { + b = true; + c = s.charAt(l); + l += 1; + switch (c) { + case "": + errorAt("Unclosed regular expression.", line, from); + return quit("Stopping.", line, from); + case "/": + if (depth > 0) { + warningAt("{a} unterminated regular expression " + + "group(s).", line, from + l, depth); + } + c = s.substr(0, l - 1); + q = { + g: true, + i: true, + m: true + }; + while (q[s.charAt(l)] === true) { + q[s.charAt(l)] = false; + l += 1; + } + character += l; + s = s.substr(l); + q = s.charAt(0); + if (q === "/" || q === "*") { + errorAt("Confusing regular expression.", + line, from); + } + return it("(regexp)", c); + case "\\": + c = s.charAt(l); + if (c < " ") { + warningAt( "Unexpected control character in regular expression.", line, from + l); - } else if (c === '<') { - warningAt( + } else if (c === "<") { + warningAt( "Unexpected escaped character '{a}' in regular expression.", line, from + l, c); - } - l += 1; - break; - case '(': - depth += 1; - b = false; - if (s.charAt(l) === '?') { - l += 1; - switch (s.charAt(l)) { - case ':': - case '=': - case '!': - l += 1; - break; - default: - warningAt( -"Expected '{a}' and instead saw '{b}'.", line, from + l, ':', s.charAt(l)); - } - } else { - captures += 1; - } - break; - case '|': - b = false; - break; - case ')': - if (depth === 0) { - warningAt("Unescaped '{a}'.", - line, from + l, ')'); - } else { - depth -= 1; - } - break; - case ' ': - q = 1; - while (s.charAt(l) === ' ') { - l += 1; - q += 1; - } - if (q > 1) { - warningAt( + } + l += 1; + break; + case "(": + depth += 1; + b = false; + if (s.charAt(l) === "?") { + l += 1; + switch (s.charAt(l)) { + case ":": + case "=": + case "!": + l += 1; + break; + default: + warningAt( +"Expected '{a}' and instead saw '{b}'.", line, from + l, ":", s.charAt(l)); + } + } else { + captures += 1; + } + break; + case "|": + b = false; + break; + case ")": + if (depth === 0) { + warningAt("Unescaped '{a}'.", + line, from + l, ")"); + } else { + depth -= 1; + } + break; + case " ": + q = 1; + while (s.charAt(l) === " ") { + l += 1; + q += 1; + } + if (q > 1) { + warningAt( "Spaces are hard to count. Use {{a}}.", line, from + l, q); - } - break; - case '[': - c = s.charAt(l); - if (c === '^') { - l += 1; - if (option.regexp) { - warningAt("Insecure '{a}'.", - line, from + l, c); - } else if (s.charAt(l) === ']') { - errorAt("Unescaped '{a}'.", - line, from + l, '^'); - } - } - q = false; - if (c === ']') { - warningAt("Empty class.", line, - from + l - 1); - q = true; - } -klass: do { - c = s.charAt(l); - l += 1; - switch (c) { - case '[': - case '^': - warningAt("Unescaped '{a}'.", - line, from + l, c); - q = true; - break; - case '-': - if (q) { - q = false; - } else { - warningAt("Unescaped '{a}'.", - line, from + l, '-'); - q = true; - } - break; - case ']': - if (!q && !option.regexdash) { - warningAt("Unescaped '{a}'.", - line, from + l - 1, '-'); - } - break klass; - case '\\': - c = s.charAt(l); - if (c < ' ') { - warningAt( + } + break; + case "[": + c = s.charAt(l); + if (c === "^") { + l += 1; + if (s.charAt(l) === "]") { + errorAt("Unescaped '{a}'.", + line, from + l, "^"); + } + } + if (c === "]") { + warningAt("Empty class.", line, + from + l - 1); + } + isLiteral = false; + isInRange = false; +klass: + do { + c = s.charAt(l); + l += 1; + switch (c) { + case "[": + case "^": + warningAt("Unescaped '{a}'.", + line, from + l, c); + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case "-": + if (isLiteral && !isInRange) { + isLiteral = false; + isInRange = true; + } else if (isInRange) { + isInRange = false; + } else if (s.charAt(l) === "]") { + isInRange = true; + } else { + if (option.regexdash !== (l === 2 || (l === 3 && + s.charAt(1) === "^"))) { + warningAt("Unescaped '{a}'.", + line, from + l - 1, "-"); + } + isLiteral = true; + } + break; + case "]": + if (isInRange && !option.regexdash) { + warningAt("Unescaped '{a}'.", + line, from + l - 1, "-"); + } + break klass; + case "\\": + c = s.charAt(l); + if (c < " ") { + warningAt( "Unexpected control character in regular expression.", line, from + l); - } else if (c === '<') { - warningAt( + } else if (c === "<") { + warningAt( "Unexpected escaped character '{a}' in regular expression.", line, from + l, c); - } - l += 1; - q = true; - break; - case '/': - warningAt("Unescaped '{a}'.", - line, from + l - 1, '/'); - q = true; - break; - case '<': - q = true; - break; - default: - q = true; - } - } while (c); - break; - case '.': - if (option.regexp) { - warningAt("Insecure '{a}'.", line, - from + l, c); - } - break; - case ']': - case '?': - case '{': - case '}': - case '+': - case '*': - warningAt("Unescaped '{a}'.", line, - from + l, c); - } - if (b) { - switch (s.charAt(l)) { - case '?': - case '+': - case '*': - l += 1; - if (s.charAt(l) === '?') { - l += 1; - } - break; - case '{': - l += 1; - c = s.charAt(l); - if (c < '0' || c > '9') { - warningAt( + } + l += 1; + if (/[wsd]/i.test(c)) { + if (isInRange) { + warningAt("Unescaped '{a}'.", + line, from + l, "-"); + isInRange = false; + } + isLiteral = false; + } else if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case "/": + warningAt("Unescaped '{a}'.", + line, from + l - 1, "/"); + + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + case "<": + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + break; + default: + if (isInRange) { + isInRange = false; + } else { + isLiteral = true; + } + } + } while (c); + break; + case ".": + if (option.regexp) { + warningAt("Insecure '{a}'.", line, + from + l, c); + } + break; + case "]": + case "?": + case "{": + case "}": + case "+": + case "*": + warningAt("Unescaped '{a}'.", line, + from + l, c); + } + if (b) { + switch (s.charAt(l)) { + case "?": + case "+": + case "*": + l += 1; + if (s.charAt(l) === "?") { + l += 1; + } + break; + case "{": + l += 1; + c = s.charAt(l); + if (c < "0" || c > "9") { + warningAt( "Expected a number and instead saw '{a}'.", line, from + l, c); - } - l += 1; - low = +c; - for (;;) { - c = s.charAt(l); - if (c < '0' || c > '9') { - break; - } - l += 1; - low = +c + (low * 10); - } - high = low; - if (c === ',') { - l += 1; - high = Infinity; - c = s.charAt(l); - if (c >= '0' && c <= '9') { - l += 1; - high = +c; - for (;;) { - c = s.charAt(l); - if (c < '0' || c > '9') { - break; - } - l += 1; - high = +c + (high * 10); - } - } - } - if (s.charAt(l) !== '}') { - warningAt( -"Expected '{a}' and instead saw '{b}'.", line, from + l, '}', c); - } else { - l += 1; - } - if (s.charAt(l) === '?') { - l += 1; - } - if (low > high) { - warningAt( + break; // No reason to continue checking numbers. + } + l += 1; + low = +c; + for (;;) { + c = s.charAt(l); + if (c < "0" || c > "9") { + break; + } + l += 1; + low = +c + (low * 10); + } + high = low; + if (c === ",") { + l += 1; + high = Infinity; + c = s.charAt(l); + if (c >= "0" && c <= "9") { + l += 1; + high = +c; + for (;;) { + c = s.charAt(l); + if (c < "0" || c > "9") { + break; + } + l += 1; + high = +c + (high * 10); + } + } + } + if (s.charAt(l) !== "}") { + warningAt( +"Expected '{a}' and instead saw '{b}'.", line, from + l, "}", c); + } else { + l += 1; + } + if (s.charAt(l) === "?") { + l += 1; + } + if (low > high) { + warningAt( "'{a}' should not be greater than '{b}'.", line, from + l, low, high); - } - } - } - } - c = s.substr(0, l - 1); - character += l; - s = s.substr(l); - return it('(regexp)', c); - } - return it('(punctuator)', t); - - // punctuator - - case '#': - return it('(punctuator)', t); - default: - return it('(punctuator)', t); - } - } - } - } - }; - }()); - - - function addlabel(t, type) { - - if (t === 'hasOwnProperty') { - warning("'hasOwnProperty' is a really bad name."); - } - -// Define t in the current function in the current scope. - - if (is_own(funct, t) && !funct['(global)']) { - if (funct[t] === true) { - if (option.latedef) - warning("'{a}' was used before it was defined.", nexttoken, t); - } else { - if (!option.shadow) - warning("'{a}' is already defined.", nexttoken, t); - } - } - - funct[t] = type; - if (funct['(global)']) { - global[t] = funct; - if (is_own(implied, t)) { - if (option.latedef) - warning("'{a}' was used before it was defined.", nexttoken, t); - delete implied[t]; - } - } else { - scope[t] = funct; - } - } - - - function doOption() { - var b, obj, filter, o = nexttoken.value, t, v; - switch (o) { - case '*/': - error("Unbegun comment."); - break; - case '/*members': - case '/*member': - o = '/*members'; - if (!membersOnly) { - membersOnly = {}; - } - obj = membersOnly; - break; - case '/*jshint': - case '/*jslint': - obj = option; - filter = boolOptions; - break; - case '/*global': - obj = predefined; - break; - default: - error("What?"); - } - t = lex.token(); -loop: for (;;) { - for (;;) { - if (t.type === 'special' && t.value === '*/') { - break loop; - } - if (t.id !== '(endline)' && t.id !== ',') { - break; - } - t = lex.token(); - } - if (t.type !== '(string)' && t.type !== '(identifier)' && - o !== '/*members') { - error("Bad option.", t); - } - v = lex.token(); - if (v.id === ':') { - v = lex.token(); - if (obj === membersOnly) { - error("Expected '{a}' and instead saw '{b}'.", - t, '*/', ':'); - } - if (t.value === 'indent' && (o === '/*jshint' || o === '/*jslint')) { - b = +v.value; - if (typeof b !== 'number' || !isFinite(b) || b <= 0 || - Math.floor(b) !== b) { - error("Expected a small integer and instead saw '{a}'.", - v, v.value); - } - obj.white = true; - obj.indent = b; - } else if (t.value === 'maxerr' && (o === '/*jshint' || o === '/*jslint')) { - b = +v.value; - if (typeof b !== 'number' || !isFinite(b) || b <= 0 || - Math.floor(b) !== b) { - error("Expected a small integer and instead saw '{a}'.", - v, v.value); - } - obj.maxerr = b; - } else if (t.value === 'maxlen' && (o === '/*jshint' || o === '/*jslint')) { - b = +v.value; - if (typeof b !== 'number' || !isFinite(b) || b <= 0 || - Math.floor(b) !== b) { - error("Expected a small integer and instead saw '{a}'.", - v, v.value); - } - obj.maxlen = b; - } else if (v.value === 'true') { - obj[t.value] = true; - } else if (v.value === 'false') { - obj[t.value] = false; - } else { - error("Bad option value.", v); - } - t = lex.token(); - } else { - if (o === '/*jshint' || o === '/*jslint') { - error("Missing option value.", t); - } - obj[t.value] = false; - t = v; - } - } - if (filter) { - assume(); - } - } - - -// We need a peek function. If it has an argument, it peeks that much farther -// ahead. It is used to distinguish -// for ( var i in ... -// from -// for ( var i = ... - - function peek(p) { - var i = p || 0, j = 0, t; - - while (j <= i) { - t = lookahead[j]; - if (!t) { - t = lookahead[j] = lex.token(); - } - j += 1; - } - return t; - } - - - -// Produce the next token. It looks for programming errors. - - function advance(id, t) { - switch (token.id) { - case '(number)': - if (nexttoken.id === '.') { - warning("A dot following a number can be confused with a decimal point.", token); - } - break; - case '-': - if (nexttoken.id === '-' || nexttoken.id === '--') { - warning("Confusing minusses."); - } - break; - case '+': - if (nexttoken.id === '+' || nexttoken.id === '++') { - warning("Confusing plusses."); - } - break; - } - if (token.type === '(string)' || token.identifier) { - anonname = token.value; - } - - if (id && nexttoken.id !== id) { - if (t) { - if (nexttoken.id === '(end)') { - warning("Unmatched '{a}'.", t, t.id); - } else { - warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.", - nexttoken, id, t.id, t.line, nexttoken.value); - } - } else if (nexttoken.type !== '(identifier)' || - nexttoken.value !== id) { - warning("Expected '{a}' and instead saw '{b}'.", - nexttoken, id, nexttoken.value); - } - } - prevtoken = token; - token = nexttoken; - for (;;) { - nexttoken = lookahead.shift() || lex.token(); - if (nexttoken.id === '(end)' || nexttoken.id === '(error)') { - return; - } - if (nexttoken.type === 'special') { - doOption(); - } else { - if (nexttoken.id !== '(endline)') { - break; - } - } - } - } - - -// This is the heart of JSHINT, the Pratt parser. In addition to parsing, it -// is looking for ad hoc lint patterns. We add .fud to Pratt's model, which is -// like .nud except that it is only used on the first token of a statement. -// Having .fud makes it much easier to define statement-oriented languages like -// JavaScript. I retained Pratt's nomenclature. - -// .nud Null denotation -// .fud First null denotation -// .led Left denotation -// lbp Left binding power -// rbp Right binding power - -// They are elements of the parsing method called Top Down Operator Precedence. - - function expression(rbp, initial) { - var left, isArray = false; - - if (nexttoken.id === '(end)') - error("Unexpected early end of program.", token); - - advance(); - if (initial) { - anonname = 'anonymous'; - funct['(verb)'] = token.value; - } - if (initial === true && token.fud) { - left = token.fud(); - } else { - if (token.nud) { - left = token.nud(); - } else { - if (nexttoken.type === '(number)' && token.id === '.') { - warning("A leading decimal point can be confused with a dot: '.{a}'.", - token, nexttoken.value); - advance(); - return token; - } else { - error("Expected an identifier and instead saw '{a}'.", - token, token.id); - } - } - while (rbp < nexttoken.lbp) { - isArray = token.value == 'Array'; - advance(); - if (isArray && token.id == '(' && nexttoken.id == ')') - warning("Use the array literal notation [].", token); - if (token.led) { - left = token.led(left); - } else { - error("Expected an operator and instead saw '{a}'.", - token, token.id); - } - } - } - return left; - } - - -// Functions for conformance of style. - - function adjacent(left, right) { - left = left || token; - right = right || nexttoken; - if (option.white) { - if (left.character !== right.from && left.line === right.line) { - warning("Unexpected space after '{a}'.", right, left.value); - } - } - } - - function nobreak(left, right) { - left = left || token; - right = right || nexttoken; - if (option.white && (left.character !== right.from || left.line !== right.line)) { - warning("Unexpected space before '{a}'.", right, right.value); - } - } - - function nospace(left, right) { - left = left || token; - right = right || nexttoken; - if (option.white && !left.comment) { - if (left.line === right.line) { - adjacent(left, right); - } - } - } - - function nonadjacent(left, right) { - if (option.white) { - left = left || token; - right = right || nexttoken; - if (left.line === right.line && left.character === right.from) { - warning("Missing space after '{a}'.", - nexttoken, left.value); - } - } - } - - function nobreaknonadjacent(left, right) { - left = left || token; - right = right || nexttoken; - if (!option.laxbreak && left.line !== right.line) { - warning("Bad line breaking before '{a}'.", right, right.id); - } else if (option.white) { - left = left || token; - right = right || nexttoken; - if (left.character === right.from) { - warning("Missing space after '{a}'.", - nexttoken, left.value); - } - } - } - - function indentation(bias) { - var i; - if (option.white && nexttoken.id !== '(end)') { - i = indent + (bias || 0); - if (nexttoken.from !== i) { - warning( + } + } + } + } + c = s.substr(0, l - 1); + character += l; + s = s.substr(l); + return it("(regexp)", c); + } + return it("(punctuator)", t); + + case "#": + return it("(punctuator)", t); + default: + return it("(punctuator)", t); + } + } + } + } + }; + }()); + + + function addlabel(t, type, token) { + if (t === "hasOwnProperty") { + warning("'hasOwnProperty' is a really bad name."); + } + if (type === "exception") { + if (is_own(funct["(context)"], t)) { + if (funct[t] !== true && !option.node) { + warning("Value of '{a}' may be overwritten in IE.", nexttoken, t); + } + } + } + + if (is_own(funct, t) && !funct["(global)"]) { + if (funct[t] === true) { + if (option.latedef) + warning("'{a}' was used before it was defined.", nexttoken, t); + } else { + if (!option.shadow && type !== "exception") { + warning("'{a}' is already defined.", nexttoken, t); + } + } + } + + funct[t] = type; + + if (token) { + funct["(tokens)"][t] = token; + } + + if (funct["(global)"]) { + global[t] = funct; + if (is_own(implied, t)) { + if (option.latedef) + warning("'{a}' was used before it was defined.", nexttoken, t); + delete implied[t]; + } + } else { + scope[t] = funct; + } + } + + + function doOption() { + var nt = nexttoken; + var o = nt.value; + var quotmarkValue = option.quotmark; + var predef = {}; + var b, obj, filter, t, tn, v, minus; + + switch (o) { + case "*/": + error("Unbegun comment."); + break; + case "/*members": + case "/*member": + o = "/*members"; + if (!membersOnly) { + membersOnly = {}; + } + obj = membersOnly; + option.quotmark = false; + break; + case "/*jshint": + case "/*jslint": + obj = option; + filter = boolOptions; + break; + case "/*global": + obj = predef; + break; + default: + error("What?"); + } + + t = lex.token(); + +loop: + for (;;) { + minus = false; + for (;;) { + if (t.type === "special" && t.value === "*/") { + break loop; + } + if (t.id !== "(endline)" && t.id !== ",") { + break; + } + t = lex.token(); + } + + if (o === "/*global" && t.value === "-") { + minus = true; + t = lex.token(); + } + + if (t.type !== "(string)" && t.type !== "(identifier)" && o !== "/*members") { + error("Bad option.", t); + } + + v = lex.token(); + if (v.id === ":") { + v = lex.token(); + + if (obj === membersOnly) { + error("Expected '{a}' and instead saw '{b}'.", t, "*/", ":"); + } + + if (o === "/*jshint") { + checkOption(t.value, t); + } + + var numericVals = [ + "maxstatements", + "maxparams", + "maxdepth", + "maxcomplexity", + "maxerr", + "maxlen", + "indent" + ]; + + if (numericVals.indexOf(t.value) > -1 && (o === "/*jshint" || o === "/*jslint")) { + b = +v.value; + + if (typeof b !== "number" || !isFinite(b) || b <= 0 || Math.floor(b) !== b) { + error("Expected a small integer and instead saw '{a}'.", v, v.value); + } + + if (t.value === "indent") + obj.white = true; + + obj[t.value] = b; + } else if (t.value === "validthis") { + if (funct["(global)"]) { + error("Option 'validthis' can't be used in a global scope."); + } else { + if (v.value === "true" || v.value === "false") + obj[t.value] = v.value === "true"; + else + error("Bad option value.", v); + } + } else if (t.value === "quotmark" && (o === "/*jshint")) { + switch (v.value) { + case "true": + obj.quotmark = true; + break; + case "false": + obj.quotmark = false; + break; + case "double": + case "single": + obj.quotmark = v.value; + break; + default: + error("Bad option value.", v); + } + } else if (v.value === "true" || v.value === "false") { + if (o === "/*jslint") { + tn = renamedOptions[t.value] || t.value; + obj[tn] = v.value === "true"; + if (invertedOptions[tn] !== undefined) { + obj[tn] = !obj[tn]; + } + } else { + obj[t.value] = v.value === "true"; + } + + if (t.value === "newcap") + obj["(explicitNewcap)"] = true; + } else { + error("Bad option value.", v); + } + t = lex.token(); + } else { + if (o === "/*jshint" || o === "/*jslint") { + error("Missing option value.", t); + } + + obj[t.value] = false; + + if (o === "/*global" && minus === true) { + JSHINT.blacklist[t.value] = t.value; + updatePredefined(); + } + + t = v; + } + } + + if (o === "/*members") { + option.quotmark = quotmarkValue; + } + + combine(predefined, predef); + + for (var key in predef) { + if (is_own(predef, key)) { + declared[key] = nt; + } + } + + if (filter) { + assume(); + } + } + + function peek(p) { + var i = p || 0, j = 0, t; + + while (j <= i) { + t = lookahead[j]; + if (!t) { + t = lookahead[j] = lex.token(); + } + j += 1; + } + return t; + } + + function advance(id, t) { + switch (token.id) { + case "(number)": + if (nexttoken.id === ".") { + warning("A dot following a number can be confused with a decimal point.", token); + } + break; + case "-": + if (nexttoken.id === "-" || nexttoken.id === "--") { + warning("Confusing minusses."); + } + break; + case "+": + if (nexttoken.id === "+" || nexttoken.id === "++") { + warning("Confusing plusses."); + } + break; + } + + if (token.type === "(string)" || token.identifier) { + anonname = token.value; + } + + if (id && nexttoken.id !== id) { + if (t) { + if (nexttoken.id === "(end)") { + warning("Unmatched '{a}'.", t, t.id); + } else { + warning("Expected '{a}' to match '{b}' from line {c} and instead saw '{d}'.", + nexttoken, id, t.id, t.line, nexttoken.value); + } + } else if (nexttoken.type !== "(identifier)" || + nexttoken.value !== id) { + warning("Expected '{a}' and instead saw '{b}'.", + nexttoken, id, nexttoken.value); + } + } + + prevtoken = token; + token = nexttoken; + for (;;) { + nexttoken = lookahead.shift() || lex.token(); + if (nexttoken.id === "(end)" || nexttoken.id === "(error)") { + return; + } + if (nexttoken.type === "special") { + doOption(); + } else { + if (nexttoken.id !== "(endline)") { + break; + } + } + } + } + + function expression(rbp, initial) { + var left, isArray = false, isObject = false; + + if (nexttoken.id === "(end)") + error("Unexpected early end of program.", token); + + advance(); + if (initial) { + anonname = "anonymous"; + funct["(verb)"] = token.value; + } + if (initial === true && token.fud) { + left = token.fud(); + } else { + if (token.nud) { + left = token.nud(); + } else { + if (nexttoken.type === "(number)" && token.id === ".") { + warning("A leading decimal point can be confused with a dot: '.{a}'.", + token, nexttoken.value); + advance(); + return token; + } else { + error("Expected an identifier and instead saw '{a}'.", + token, token.id); + } + } + while (rbp < nexttoken.lbp) { + isArray = token.value === "Array"; + isObject = token.value === "Object"; + if (left && (left.value || (left.first && left.first.value))) { + if (left.value !== "new" || + (left.first && left.first.value && left.first.value === ".")) { + isArray = false; + if (left.value !== token.value) { + isObject = false; + } + } + } + + advance(); + if (isArray && token.id === "(" && nexttoken.id === ")") + warning("Use the array literal notation [].", token); + if (isObject && token.id === "(" && nexttoken.id === ")") + warning("Use the object literal notation {}.", token); + if (token.led) { + left = token.led(left); + } else { + error("Expected an operator and instead saw '{a}'.", + token, token.id); + } + } + } + return left; + } + + function adjacent(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white) { + if (left.character !== right.from && left.line === right.line) { + left.from += (left.character - left.from); + warning("Unexpected space after '{a}'.", left, left.value); + } + } + } + + function nobreak(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white && (left.character !== right.from || left.line !== right.line)) { + warning("Unexpected space before '{a}'.", right, right.value); + } + } + + function nospace(left, right) { + left = left || token; + right = right || nexttoken; + if (option.white && !left.comment) { + if (left.line === right.line) { + adjacent(left, right); + } + } + } + + function nonadjacent(left, right) { + if (option.white) { + left = left || token; + right = right || nexttoken; + if (left.value === ";" && right.value === ";") { + return; + } + if (left.line === right.line && left.character === right.from) { + left.from += (left.character - left.from); + warning("Missing space after '{a}'.", + left, left.value); + } + } + } + + function nobreaknonadjacent(left, right) { + left = left || token; + right = right || nexttoken; + if (!option.laxbreak && left.line !== right.line) { + warning("Bad line breaking before '{a}'.", right, right.id); + } else if (option.white) { + left = left || token; + right = right || nexttoken; + if (left.character === right.from) { + left.from += (left.character - left.from); + warning("Missing space after '{a}'.", + left, left.value); + } + } + } + + function indentation(bias) { + var i; + if (option.white && nexttoken.id !== "(end)") { + i = indent + (bias || 0); + if (nexttoken.from !== i) { + warning( "Expected '{a}' to have an indentation at {b} instead at {c}.", - nexttoken, nexttoken.value, i, nexttoken.from); - } - } - } - - function nolinebreak(t) { - t = t || token; - if (t.line !== nexttoken.line) { - warning("Line breaking error '{a}'.", t, t.value); - } - } - - - function comma() { - if (token.line !== nexttoken.line) { - if (!option.laxbreak) { - warning("Bad line breaking before '{a}'.", token, nexttoken.id); - } - } else if (token.character !== nexttoken.from && option.white) { - warning("Unexpected space after '{a}'.", nexttoken, token.value); - } - advance(','); - nonadjacent(token, nexttoken); - } - - -// Functional constructors for making the symbols that will be inherited by -// tokens. - - function symbol(s, p) { - var x = syntax[s]; - if (!x || typeof x !== 'object') { - syntax[s] = x = { - id: s, - lbp: p, - value: s - }; - } - return x; - } - - - function delim(s) { - return symbol(s, 0); - } - - - function stmt(s, f) { - var x = delim(s); - x.identifier = x.reserved = true; - x.fud = f; - return x; - } - - - function blockstmt(s, f) { - var x = stmt(s, f); - x.block = true; - return x; - } - - - function reserveName(x) { - var c = x.id.charAt(0); - if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) { - x.identifier = x.reserved = true; - } - return x; - } - - - function prefix(s, f) { - var x = symbol(s, 150); - reserveName(x); - x.nud = (typeof f === 'function') ? f : function () { - this.right = expression(150); - this.arity = 'unary'; - if (this.id === '++' || this.id === '--') { - if (option.plusplus) { - warning("Unexpected use of '{a}'.", this, this.id); - } else if ((!this.right.identifier || this.right.reserved) && - this.right.id !== '.' && this.right.id !== '[') { - warning("Bad operand.", this); - } - } - return this; - }; - return x; - } - - - function type(s, f) { - var x = delim(s); - x.type = s; - x.nud = f; - return x; - } - - - function reserve(s, f) { - var x = type(s, f); - x.identifier = x.reserved = true; - return x; - } - - - function reservevar(s, v) { - return reserve(s, function () { - if (typeof v === 'function') { - v(this); - } - return this; - }); - } - - - function infix(s, f, p, w) { - var x = symbol(s, p); - reserveName(x); - x.led = function (left) { - if (!w) { - nobreaknonadjacent(prevtoken, token); - nonadjacent(token, nexttoken); - } - if (typeof f === 'function') { - return f(left, this); - } else { - this.left = left; - this.right = expression(p); - return this; - } - }; - return x; - } - - - function relation(s, f) { - var x = symbol(s, 100); - x.led = function (left) { - nobreaknonadjacent(prevtoken, token); - nonadjacent(token, nexttoken); - var right = expression(100); - if ((left && left.id === 'NaN') || (right && right.id === 'NaN')) { - warning("Use the isNaN function to compare with NaN.", this); - } else if (f) { - f.apply(this, [left, right]); - } - if (left.id === '!') { - warning("Confusing use of '{a}'.", left, '!'); - } - if (right.id === '!') { - warning("Confusing use of '{a}'.", left, '!'); - } - this.left = left; - this.right = right; - return this; - }; - return x; - } - - - function isPoorRelation(node) { - return node && - ((node.type === '(number)' && +node.value === 0) || - (node.type === '(string)' && node.value === '') || - (node.type === 'null' && !option.eqnull) || - node.type === 'true' || - node.type === 'false' || - node.type === 'undefined'); - } - - - function assignop(s, f) { - symbol(s, 20).exps = true; - return infix(s, function (left, that) { - var l; - that.left = left; - if (predefined[left.value] === false && - scope[left.value]['(global)'] === true) { - warning("Read only.", left); - } else if (left['function']) { - warning("'{a}' is a function.", left, left.value); - } - if (left) { - if (left.id === '.' || left.id === '[') { - if (!left.left || left.left.value === 'arguments') { - warning('Bad assignment.', that); - } - that.right = expression(19); - return that; - } else if (left.identifier && !left.reserved) { - if (funct[left.value] === 'exception') { - warning("Do not assign to the exception parameter.", left); - } - that.right = expression(19); - return that; - } - if (left === syntax['function']) { - warning( + nexttoken, nexttoken.value, i, nexttoken.from); + } + } + } + + function nolinebreak(t) { + t = t || token; + if (t.line !== nexttoken.line) { + warning("Line breaking error '{a}'.", t, t.value); + } + } + + + function comma() { + if (token.line !== nexttoken.line) { + if (!option.laxcomma) { + if (comma.first) { + warning("Comma warnings can be turned off with 'laxcomma'"); + comma.first = false; + } + warning("Bad line breaking before '{a}'.", token, nexttoken.id); + } + } else if (!token.comment && token.character !== nexttoken.from && option.white) { + token.from += (token.character - token.from); + warning("Unexpected space after '{a}'.", token, token.value); + } + advance(","); + nonadjacent(token, nexttoken); + } + + function symbol(s, p) { + var x = syntax[s]; + if (!x || typeof x !== "object") { + syntax[s] = x = { + id: s, + lbp: p, + value: s + }; + } + return x; + } + + + function delim(s) { + return symbol(s, 0); + } + + + function stmt(s, f) { + var x = delim(s); + x.identifier = x.reserved = true; + x.fud = f; + return x; + } + + + function blockstmt(s, f) { + var x = stmt(s, f); + x.block = true; + return x; + } + + + function reserveName(x) { + var c = x.id.charAt(0); + if ((c >= "a" && c <= "z") || (c >= "A" && c <= "Z")) { + x.identifier = x.reserved = true; + } + return x; + } + + + function prefix(s, f) { + var x = symbol(s, 150); + reserveName(x); + x.nud = (typeof f === "function") ? f : function () { + this.right = expression(150); + this.arity = "unary"; + if (this.id === "++" || this.id === "--") { + if (option.plusplus) { + warning("Unexpected use of '{a}'.", this, this.id); + } else if ((!this.right.identifier || this.right.reserved) && + this.right.id !== "." && this.right.id !== "[") { + warning("Bad operand.", this); + } + } + return this; + }; + return x; + } + + + function type(s, f) { + var x = delim(s); + x.type = s; + x.nud = f; + return x; + } + + + function reserve(s, f) { + var x = type(s, f); + x.identifier = x.reserved = true; + return x; + } + + + function reservevar(s, v) { + return reserve(s, function () { + if (typeof v === "function") { + v(this); + } + return this; + }); + } + + + function infix(s, f, p, w) { + var x = symbol(s, p); + reserveName(x); + x.led = function (left) { + if (!w) { + nobreaknonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + } + if (s === "in" && left.id === "!") { + warning("Confusing use of '{a}'.", left, "!"); + } + if (typeof f === "function") { + return f(left, this); + } else { + this.left = left; + this.right = expression(p); + return this; + } + }; + return x; + } + + + function relation(s, f) { + var x = symbol(s, 100); + x.led = function (left) { + nobreaknonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + var right = expression(100); + + if (isIdentifier(left, "NaN") || isIdentifier(right, "NaN")) { + warning("Use the isNaN function to compare with NaN.", this); + } else if (f) { + f.apply(this, [left, right]); + } + if (left.id === "!") { + warning("Confusing use of '{a}'.", left, "!"); + } + if (right.id === "!") { + warning("Confusing use of '{a}'.", right, "!"); + } + this.left = left; + this.right = right; + return this; + }; + return x; + } + + + function isPoorRelation(node) { + return node && + ((node.type === "(number)" && +node.value === 0) || + (node.type === "(string)" && node.value === "") || + (node.type === "null" && !option.eqnull) || + node.type === "true" || + node.type === "false" || + node.type === "undefined"); + } + + + function assignop(s) { + symbol(s, 20).exps = true; + + return infix(s, function (left, that) { + that.left = left; + + if (predefined[left.value] === false && + scope[left.value]["(global)"] === true) { + warning("Read only.", left); + } else if (left["function"]) { + warning("'{a}' is a function.", left, left.value); + } + + if (left) { + if (option.esnext && funct[left.value] === "const") { + warning("Attempting to override '{a}' which is a constant", left, left.value); + } + + if (left.id === "." || left.id === "[") { + if (!left.left || left.left.value === "arguments") { + warning("Bad assignment.", that); + } + that.right = expression(19); + return that; + } else if (left.identifier && !left.reserved) { + if (funct[left.value] === "exception") { + warning("Do not assign to the exception parameter.", left); + } + that.right = expression(19); + return that; + } + + if (left === syntax["function"]) { + warning( "Expected an identifier in an assignment and instead saw a function invocation.", - token); - } - } - error("Bad assignment.", that); - }, 20); - } - - - function bitwise(s, f, p) { - var x = symbol(s, p); - reserveName(x); - x.led = (typeof f === 'function') ? f : function (left) { - if (option.bitwise) { - warning("Unexpected use of '{a}'.", this, this.id); - } - this.left = left; - this.right = expression(p); - return this; - }; - return x; - } - - - function bitwiseassignop(s) { - symbol(s, 20).exps = true; - return infix(s, function (left, that) { - if (option.bitwise) { - warning("Unexpected use of '{a}'.", that, that.id); - } - nonadjacent(prevtoken, token); - nonadjacent(token, nexttoken); - if (left) { - if (left.id === '.' || left.id === '[' || - (left.identifier && !left.reserved)) { - expression(19); - return that; - } - if (left === syntax['function']) { - warning( + token); + } + } + + error("Bad assignment.", that); + }, 20); + } + + + function bitwise(s, f, p) { + var x = symbol(s, p); + reserveName(x); + x.led = (typeof f === "function") ? f : function (left) { + if (option.bitwise) { + warning("Unexpected use of '{a}'.", this, this.id); + } + this.left = left; + this.right = expression(p); + return this; + }; + return x; + } + + + function bitwiseassignop(s) { + symbol(s, 20).exps = true; + return infix(s, function (left, that) { + if (option.bitwise) { + warning("Unexpected use of '{a}'.", that, that.id); + } + nonadjacent(prevtoken, token); + nonadjacent(token, nexttoken); + if (left) { + if (left.id === "." || left.id === "[" || + (left.identifier && !left.reserved)) { + expression(19); + return that; + } + if (left === syntax["function"]) { + warning( "Expected an identifier in an assignment, and instead saw a function invocation.", - token); - } - return that; - } - error("Bad assignment.", that); - }, 20); - } - - - function suffix(s, f) { - var x = symbol(s, 150); - x.led = function (left) { - if (option.plusplus) { - warning("Unexpected use of '{a}'.", this, this.id); - } else if ((!left.identifier || left.reserved) && - left.id !== '.' && left.id !== '[') { - warning("Bad operand.", this); - } - this.left = left; - return this; - }; - return x; - } - - - // fnparam means that this identifier is being defined as a function - // argument (see identifier()) - function optionalidentifier(fnparam) { - if (nexttoken.identifier) { - advance(); - if (token.reserved && !option.es5) { - // `undefined` as a function param is a common pattern to protect - // against the case when somebody does `undefined = true` and - // help with minification. More info: https://gist.github.com/315916 - if (!fnparam || token.value != 'undefined') { - warning("Expected an identifier and instead saw '{a}' (a reserved word).", - token, token.id); - } - } - return token.value; - } - } - - // fnparam means that this identifier is being defined as a function - // argument - function identifier(fnparam) { - var i = optionalidentifier(fnparam); - if (i) { - return i; - } - if (token.id === 'function' && nexttoken.id === '(') { - warning("Missing name in function declaration."); - } else { - error("Expected an identifier and instead saw '{a}'.", - nexttoken, nexttoken.value); - } - } - - - function reachable(s) { - var i = 0, t; - if (nexttoken.id !== ';' || noreach) { - return; - } - for (;;) { - t = peek(i); - if (t.reach) { - return; - } - if (t.id !== '(endline)') { - if (t.id === 'function') { - warning( + token); + } + return that; + } + error("Bad assignment.", that); + }, 20); + } + + + function suffix(s) { + var x = symbol(s, 150); + x.led = function (left) { + if (option.plusplus) { + warning("Unexpected use of '{a}'.", this, this.id); + } else if ((!left.identifier || left.reserved) && + left.id !== "." && left.id !== "[") { + warning("Bad operand.", this); + } + this.left = left; + return this; + }; + return x; + } + function optionalidentifier(fnparam) { + if (nexttoken.identifier) { + advance(); + if (token.reserved && !option.es5) { + if (!fnparam || token.value !== "undefined") { + warning("Expected an identifier and instead saw '{a}' (a reserved word).", + token, token.id); + } + } + return token.value; + } + } + function identifier(fnparam) { + var i = optionalidentifier(fnparam); + if (i) { + return i; + } + if (token.id === "function" && nexttoken.id === "(") { + warning("Missing name in function declaration."); + } else { + error("Expected an identifier and instead saw '{a}'.", + nexttoken, nexttoken.value); + } + } + + + function reachable(s) { + var i = 0, t; + if (nexttoken.id !== ";" || noreach) { + return; + } + for (;;) { + t = peek(i); + if (t.reach) { + return; + } + if (t.id !== "(endline)") { + if (t.id === "function") { + if (!option.latedef) { + break; + } + warning( "Inner functions should be listed at the top of the outer function.", t); - break; - } - warning("Unreachable '{a}' after '{b}'.", t, t.value, s); - break; - } - i += 1; - } - } - - - function statement(noindent) { - var i = indent, r, s = scope, t = nexttoken; - -// We don't like the empty statement. - - if (t.id === ';') { - warning("Unnecessary semicolon.", t); - advance(';'); - return; - } - -// Is this a labelled statement? - - if (t.identifier && !t.reserved && peek().id === ':') { - advance(); - advance(':'); - scope = Object.create(s); - addlabel(t.value, 'label'); - if (!nexttoken.labelled) { - warning("Label '{a}' on {b} statement.", - nexttoken, t.value, nexttoken.value); - } - if (jx.test(t.value + ':')) { - warning("Label '{a}' looks like a javascript url.", - t, t.value); - } - nexttoken.label = t.value; - t = nexttoken; - } - -// Parse the statement. - - if (!noindent) { - indentation(); - } - r = expression(0, true); - -// Look for the final semicolon. - - if (!t.block) { - if (!option.expr && (!r || !r.exps)) { - warning("Expected an assignment or function call and instead saw an expression.", - token); - } else if (option.nonew && r.id === '(' && r.left.id === 'new') { - warning("Do not use 'new' for side effects."); - } - if (nexttoken.id !== ';') { - if (!option.asi && !(option.lastsemic && nexttoken.id == '}' && - nexttoken.line == token.line)) { - warningAt("Missing semicolon.", token.line, token.from + token.value.length); - } - } else { - adjacent(token, nexttoken); - advance(';'); - nonadjacent(token, nexttoken); - } - } - -// Restore the indentation. - - indent = i; - scope = s; - return r; - } - - - function use_strict() { - if (nexttoken.value === 'use strict') { - if (strict_mode) { - warning("Unnecessary \"use strict\"."); - } - advance(); - advance(';'); - strict_mode = true; - option.newcap = true; - option.undef = true; - return true; - } else { - return false; - } - } - - - function statements(begin) { - var a = [], f, p; - - while (!nexttoken.reach && nexttoken.id !== '(end)') { - if (nexttoken.id === ';') { - warning("Unnecessary semicolon."); - advance(';'); - } else { - a.push(statement()); - } - } - return a; - } - - - /* - * Parses a single block. A block is a sequence of statements wrapped in - * braces. - * - * ordinary - true for everything but function bodies and try blocks. - * stmt - true if block can be a single statement (e.g. in if/for/while). - */ - function block(ordinary, stmt) { - var a, - b = inblock, - old_indent = indent, - m = strict_mode, - s = scope, - t; - - inblock = ordinary; - scope = Object.create(scope); - nonadjacent(token, nexttoken); - t = nexttoken; - - if (nexttoken.id === '{') { - advance('{'); - if (nexttoken.id !== '}' || token.line !== nexttoken.line) { - indent += option.indent; - while (!ordinary && nexttoken.from > indent) { - indent += option.indent; - } - if (!ordinary && !use_strict() && !m && option.strict && - funct['(context)']['(global)']) { - warning("Missing \"use strict\" statement."); - } - a = statements(); - strict_mode = m; - indent -= option.indent; - indentation(); - } - advance('}', t); - indent = old_indent; - } else if (!ordinary) { - error("Expected '{a}' and instead saw '{b}'.", - nexttoken, '{', nexttoken.value); - } else { - if (!stmt || option.curly) - warning("Expected '{a}' and instead saw '{b}'.", - nexttoken, '{', nexttoken.value); - - noreach = true; - a = [statement()]; - noreach = false; - } - funct['(verb)'] = null; - scope = s; - inblock = b; - if (ordinary && option.noempty && (!a || a.length === 0)) { - warning("Empty block."); - } - return a; - } - - - function countMember(m) { - if (membersOnly && typeof membersOnly[m] !== 'boolean') { - warning("Unexpected /*member '{a}'.", token, m); - } - if (typeof member[m] === 'number') { - member[m] += 1; - } else { - member[m] = 1; - } - } - - - function note_implied(token) { - var name = token.value, line = token.line, a = implied[name]; - if (typeof a === 'function') { - a = false; - } - if (!a) { - a = [line]; - implied[name] = a; - } else if (a[a.length - 1] !== line) { - a.push(line); - } - } - -// Build the syntax table by declaring the syntactic elements of the language. - - type('(number)', function () { - return this; - }); - type('(string)', function () { - return this; - }); - - syntax['(identifier)'] = { - type: '(identifier)', - lbp: 0, - identifier: true, - nud: function () { - var v = this.value, - s = scope[v], - f; - if (typeof s === 'function') { - -// Protection against accidental inheritance. - - s = undefined; - } else if (typeof s === 'boolean') { - f = funct; - funct = functions[0]; - addlabel(v, 'var'); - s = funct; - funct = f; - } - -// The name is in scope and defined in the current function. - - if (funct === s) { - -// Change 'unused' to 'var', and reject labels. - - switch (funct[v]) { - case 'unused': - funct[v] = 'var'; - break; - case 'unction': - funct[v] = 'function'; - this['function'] = true; - break; - case 'function': - this['function'] = true; - break; - case 'label': - warning("'{a}' is a statement label.", token, v); - break; - } - -// The name is not defined in the function. If we are in the global scope, -// then we have an undefined variable. -// -// Operators typeof and delete do not raise runtime errors even if the base -// object of a reference is null so no need to display warning if we're -// inside of typeof or delete. - - } else if (funct['(global)']) { - if (anonname != 'typeof' && anonname != 'delete' && - option.undef && typeof predefined[v] !== 'boolean') { - warning("'{a}' is not defined.", token, v); - } - note_implied(token); - -// If the name is already defined in the current -// function, but not as outer, then there is a scope error. - - } else { - switch (funct[v]) { - case 'closure': - case 'function': - case 'var': - case 'unused': - warning("'{a}' used out of scope.", token, v); - break; - case 'label': - warning("'{a}' is a statement label.", token, v); - break; - case 'outer': - case 'global': - break; - default: - -// If the name is defined in an outer function, make an outer entry, and if -// it was unused, make it var. - - if (s === true) { - funct[v] = true; - } else if (s === null) { - warning("'{a}' is not allowed.", token, v); - note_implied(token); - } else if (typeof s !== 'object') { - -// Operators typeof and delete do not raise runtime errors even if the base object of -// a reference is null so no need to display warning if we're inside of typeof or delete. - - if (anonname != 'typeof' && anonname != 'delete' && option.undef) { - warning("'{a}' is not defined.", token, v); - } else { - funct[v] = true; - } - note_implied(token); - } else { - switch (s[v]) { - case 'function': - case 'unction': - this['function'] = true; - s[v] = 'closure'; - funct[v] = s['(global)'] ? 'global' : 'outer'; - break; - case 'var': - case 'unused': - s[v] = 'closure'; - funct[v] = s['(global)'] ? 'global' : 'outer'; - break; - case 'closure': - case 'parameter': - funct[v] = s['(global)'] ? 'global' : 'outer'; - break; - case 'label': - warning("'{a}' is a statement label.", token, v); - } - } - } - } - return this; - }, - led: function () { - error("Expected an operator and instead saw '{a}'.", - nexttoken, nexttoken.value); - } - }; - - type('(regexp)', function () { - return this; - }); - - -// ECMAScript parser - - delim('(endline)'); - delim('(begin)'); - delim('(end)').reach = true; - delim('</').reach = true; - delim('<!'); - delim('<!--'); - delim('-->'); - delim('(error)').reach = true; - delim('}').reach = true; - delim(')'); - delim(']'); - delim('"').reach = true; - delim("'").reach = true; - delim(';'); - delim(':').reach = true; - delim(','); - delim('#'); - delim('@'); - reserve('else'); - reserve('case').reach = true; - reserve('catch'); - reserve('default').reach = true; - reserve('finally'); - reservevar('arguments', function (x) { - if (strict_mode && funct['(global)']) { - warning("Strict violation.", x); - } - }); - reservevar('eval'); - reservevar('false'); - reservevar('Infinity'); - reservevar('NaN'); - reservevar('null'); - reservevar('this', function (x) { - if (strict_mode && ((funct['(statement)'] && - funct['(name)'].charAt(0) > 'Z') || funct['(global)'])) { - warning("Strict violation.", x); - } - }); - reservevar('true'); - reservevar('undefined'); - assignop('=', 'assign', 20); - assignop('+=', 'assignadd', 20); - assignop('-=', 'assignsub', 20); - assignop('*=', 'assignmult', 20); - assignop('/=', 'assigndiv', 20).nud = function () { - error("A regular expression literal can be confused with '/='."); - }; - assignop('%=', 'assignmod', 20); - bitwiseassignop('&=', 'assignbitand', 20); - bitwiseassignop('|=', 'assignbitor', 20); - bitwiseassignop('^=', 'assignbitxor', 20); - bitwiseassignop('<<=', 'assignshiftleft', 20); - bitwiseassignop('>>=', 'assignshiftright', 20); - bitwiseassignop('>>>=', 'assignshiftrightunsigned', 20); - infix('?', function (left, that) { - that.left = left; - that.right = expression(10); - advance(':'); - that['else'] = expression(10); - return that; - }, 30); - - infix('||', 'or', 40); - infix('&&', 'and', 50); - bitwise('|', 'bitor', 70); - bitwise('^', 'bitxor', 80); - bitwise('&', 'bitand', 90); - relation('==', function (left, right) { - var eqnull = option.eqnull && - (left.value == 'null' || right.value == 'null'); - - if (!eqnull && option.eqeqeq) { - warning("Expected '{a}' and instead saw '{b}'.", - this, '===', '=='); - } else if (isPoorRelation(left)) { - warning("Use '{a}' to compare with '{b}'.", - this, '===', left.value); - } else if (isPoorRelation(right)) { - warning("Use '{a}' to compare with '{b}'.", - this, '===', right.value); - } - return this; - }); - relation('==='); - relation('!=', function (left, right) { - var eqnull = option.eqnull && - (left.value == 'null' || right.value == 'null'); - - if (!eqnull && option.eqeqeq) { - warning("Expected '{a}' and instead saw '{b}'.", - this, '!==', '!='); - } else if (isPoorRelation(left)) { - warning("Use '{a}' to compare with '{b}'.", - this, '!==', left.value); - } else if (isPoorRelation(right)) { - warning("Use '{a}' to compare with '{b}'.", - this, '!==', right.value); - } - return this; - }); - relation('!=='); - relation('<'); - relation('>'); - relation('<='); - relation('>='); - bitwise('<<', 'shiftleft', 120); - bitwise('>>', 'shiftright', 120); - bitwise('>>>', 'shiftrightunsigned', 120); - infix('in', 'in', 120); - infix('instanceof', 'instanceof', 120); - infix('+', function (left, that) { - var right = expression(130); - if (left && right && left.id === '(string)' && right.id === '(string)') { - left.value += right.value; - left.character = right.character; - if (!option.scripturl && jx.test(left.value)) { - warning("JavaScript URL.", left); - } - return left; - } - that.left = left; - that.right = right; - return that; - }, 130); - prefix('+', 'num'); - prefix('+++', function () { - warning("Confusing pluses."); - this.right = expression(150); - this.arity = 'unary'; - return this; - }); - infix('+++', function (left) { - warning("Confusing pluses."); - this.left = left; - this.right = expression(130); - return this; - }, 130); - infix('-', 'sub', 130); - prefix('-', 'neg'); - prefix('---', function () { - warning("Confusing minuses."); - this.right = expression(150); - this.arity = 'unary'; - return this; - }); - infix('---', function (left) { - warning("Confusing minuses."); - this.left = left; - this.right = expression(130); - return this; - }, 130); - infix('*', 'mult', 140); - infix('/', 'div', 140); - infix('%', 'mod', 140); - - suffix('++', 'postinc'); - prefix('++', 'preinc'); - syntax['++'].exps = true; - - suffix('--', 'postdec'); - prefix('--', 'predec'); - syntax['--'].exps = true; - prefix('delete', function () { - var p = expression(0); - if (!p || (p.id !== '.' && p.id !== '[')) { - warning("Variables should not be deleted."); - } - this.first = p; - return this; - }).exps = true; - - prefix('~', function () { - if (option.bitwise) { - warning("Unexpected '{a}'.", this, '~'); - } - expression(150); - return this; - }); - - prefix('!', function () { - this.right = expression(150); - this.arity = 'unary'; - if (bang[this.right.id] === true) { - warning("Confusing use of '{a}'.", this, '!'); - } - return this; - }); - prefix('typeof', 'typeof'); - prefix('new', function () { - var c = expression(155), i; - if (c && c.id !== 'function') { - if (c.identifier) { - c['new'] = true; - switch (c.value) { - case 'Object': - warning("Use the object literal notation {}.", token); - break; - case 'Number': - case 'String': - case 'Boolean': - case 'Math': - case 'JSON': - warning("Do not use {a} as a constructor.", token, c.value); - break; - case 'Function': - if (!option.evil) { - warning("The Function constructor is eval."); - } - break; - case 'Date': - case 'RegExp': - break; - default: - if (c.id !== 'function') { - i = c.value.substr(0, 1); - if (option.newcap && (i < 'A' || i > 'Z')) { - warning("A constructor name should start with "+ - "an uppercase letter.", token); - } - } - } - } else { - if (c.id !== '.' && c.id !== '[' && c.id !== '(') { - warning("Bad constructor.", token); - } - } - } else { - if (!option.supernew) - warning("Weird construction. Delete 'new'.", this); - } - adjacent(token, nexttoken); - if (nexttoken.id !== '(' && !option.supernew) { - warning("Missing '()' invoking a constructor."); - } - this.first = c; - return this; - }); - syntax['new'].exps = true; - - prefix('void').exps = true; - - infix('.', function (left, that) { - adjacent(prevtoken, token); - nobreak(); - var m = identifier(); - if (typeof m === 'string') { - countMember(m); - } - that.left = left; - that.right = m; - if (option.noarg && left && left.value === 'arguments' && - (m === 'callee' || m === 'caller')) { - warning("Avoid arguments.{a}.", left, m); - } else if (!option.evil && left && left.value === 'document' && - (m === 'write' || m === 'writeln')) { - warning("document.write can be a form of eval.", left); - } - if (!option.evil && (m === 'eval' || m === 'execScript')) { - warning('eval is evil.'); - } - return that; - }, 160, true); - - infix('(', function (left, that) { - if (prevtoken.id !== '}' && prevtoken.id !== ')') { - nobreak(prevtoken, token); - } - nospace(); - if (option.immed && !left.immed && left.id === 'function') { - warning("Wrap an immediate function invocation in parentheses " + - "to assist the reader in understanding that the expression " + - "is the result of a function, and not the function itself."); - } - var n = 0, - p = []; - if (left) { - if (left.type === '(identifier)') { - if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) { - if (left.value !== 'Number' && left.value !== 'String' && - left.value !== 'Boolean' && - left.value !== 'Date') { - if (left.value === 'Math') { - warning("Math is not a function.", left); - } else if (option.newcap) { - warning( -"Missing 'new' prefix when invoking a constructor.", left); - } - } - } - } - } - if (nexttoken.id !== ')') { - for (;;) { - p[p.length] = expression(10); - n += 1; - if (nexttoken.id !== ',') { - break; - } - comma(); - } - } - advance(')'); - nospace(prevtoken, token); - if (typeof left === 'object') { - if (left.value === 'parseInt' && n === 1) { - warning("Missing radix parameter.", left); - } - if (!option.evil) { - if (left.value === 'eval' || left.value === 'Function' || - left.value === 'execScript') { - warning("eval is evil.", left); - } else if (p[0] && p[0].id === '(string)' && - (left.value === 'setTimeout' || - left.value === 'setInterval')) { - warning( - "Implied eval is evil. Pass a function instead of a string.", left); - } - } - if (!left.identifier && left.id !== '.' && left.id !== '[' && - left.id !== '(' && left.id !== '&&' && left.id !== '||' && - left.id !== '?') { - warning("Bad invocation.", left); - } - } - that.left = left; - return that; - }, 155, true).exps = true; - - prefix('(', function () { - nospace(); - if (nexttoken.id === 'function') { - nexttoken.immed = true; - } - var v = expression(0); - advance(')', this); - nospace(prevtoken, token); - if (option.immed && v.id === 'function') { - if (nexttoken.id === '(') { - warning( -"Move the invocation into the parens that contain the function.", nexttoken); - } else { - warning( + break; + } + warning("Unreachable '{a}' after '{b}'.", t, t.value, s); + break; + } + i += 1; + } + } + + + function statement(noindent) { + var i = indent, r, s = scope, t = nexttoken; + + if (t.id === ";") { + advance(";"); + return; + } + + if (t.identifier && !t.reserved && peek().id === ":") { + advance(); + advance(":"); + scope = Object.create(s); + addlabel(t.value, "label"); + + if (!nexttoken.labelled && nexttoken.value !== "{") { + warning("Label '{a}' on {b} statement.", nexttoken, t.value, nexttoken.value); + } + + if (jx.test(t.value + ":")) { + warning("Label '{a}' looks like a javascript url.", t, t.value); + } + + nexttoken.label = t.value; + t = nexttoken; + } + + if (t.id === "{") { + block(true, true); + return; + } + + if (!noindent) { + indentation(); + } + r = expression(0, true); + + if (!t.block) { + if (!option.expr && (!r || !r.exps)) { + warning("Expected an assignment or function call and instead saw an expression.", + token); + } else if (option.nonew && r.id === "(" && r.left.id === "new") { + warning("Do not use 'new' for side effects.", t); + } + + if (nexttoken.id === ",") { + return comma(); + } + + if (nexttoken.id !== ";") { + if (!option.asi) { + if (!option.lastsemic || nexttoken.id !== "}" || + nexttoken.line !== token.line) { + warningAt("Missing semicolon.", token.line, token.character); + } + } + } else { + adjacent(token, nexttoken); + advance(";"); + nonadjacent(token, nexttoken); + } + } + + indent = i; + scope = s; + return r; + } + + + function statements(startLine) { + var a = [], p; + + while (!nexttoken.reach && nexttoken.id !== "(end)") { + if (nexttoken.id === ";") { + p = peek(); + if (!p || p.id !== "(") { + warning("Unnecessary semicolon."); + } + advance(";"); + } else { + a.push(statement(startLine === nexttoken.line)); + } + } + return a; + } + function directives() { + var i, p, pn; + + for (;;) { + if (nexttoken.id === "(string)") { + p = peek(0); + if (p.id === "(endline)") { + i = 1; + do { + pn = peek(i); + i = i + 1; + } while (pn.id === "(endline)"); + + if (pn.id !== ";") { + if (pn.id !== "(string)" && pn.id !== "(number)" && + pn.id !== "(regexp)" && pn.identifier !== true && + pn.id !== "}") { + break; + } + warning("Missing semicolon.", nexttoken); + } else { + p = pn; + } + } else if (p.id === "}") { + warning("Missing semicolon.", p); + } else if (p.id !== ";") { + break; + } + + indentation(); + advance(); + if (directive[token.value]) { + warning("Unnecessary directive \"{a}\".", token, token.value); + } + + if (token.value === "use strict") { + if (!option["(explicitNewcap)"]) + option.newcap = true; + option.undef = true; + } + directive[token.value] = true; + + if (p.id === ";") { + advance(";"); + } + continue; + } + break; + } + } + function block(ordinary, stmt, isfunc) { + var a, + b = inblock, + old_indent = indent, + m, + s = scope, + t, + line, + d; + + inblock = ordinary; + + if (!ordinary || !option.funcscope) + scope = Object.create(scope); + + nonadjacent(token, nexttoken); + t = nexttoken; + + var metrics = funct["(metrics)"]; + metrics.nestedBlockDepth += 1; + metrics.verifyMaxNestedBlockDepthPerFunction(); + + if (nexttoken.id === "{") { + advance("{"); + line = token.line; + if (nexttoken.id !== "}") { + indent += option.indent; + while (!ordinary && nexttoken.from > indent) { + indent += option.indent; + } + + if (isfunc) { + m = {}; + for (d in directive) { + if (is_own(directive, d)) { + m[d] = directive[d]; + } + } + directives(); + + if (option.strict && funct["(context)"]["(global)"]) { + if (!m["use strict"] && !directive["use strict"]) { + warning("Missing \"use strict\" statement."); + } + } + } + + a = statements(line); + + metrics.statementCount += a.length; + + if (isfunc) { + directive = m; + } + + indent -= option.indent; + if (line !== nexttoken.line) { + indentation(); + } + } else if (line !== nexttoken.line) { + indentation(); + } + advance("}", t); + indent = old_indent; + } else if (!ordinary) { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, "{", nexttoken.value); + } else { + if (!stmt || option.curly) + warning("Expected '{a}' and instead saw '{b}'.", + nexttoken, "{", nexttoken.value); + + noreach = true; + indent += option.indent; + a = [statement(nexttoken.line === token.line)]; + indent -= option.indent; + noreach = false; + } + funct["(verb)"] = null; + if (!ordinary || !option.funcscope) scope = s; + inblock = b; + if (ordinary && option.noempty && (!a || a.length === 0)) { + warning("Empty block."); + } + metrics.nestedBlockDepth -= 1; + return a; + } + + + function countMember(m) { + if (membersOnly && typeof membersOnly[m] !== "boolean") { + warning("Unexpected /*member '{a}'.", token, m); + } + if (typeof member[m] === "number") { + member[m] += 1; + } else { + member[m] = 1; + } + } + + + function note_implied(token) { + var name = token.value, line = token.line, a = implied[name]; + if (typeof a === "function") { + a = false; + } + + if (!a) { + a = [line]; + implied[name] = a; + } else if (a[a.length - 1] !== line) { + a.push(line); + } + } + + type("(number)", function () { + return this; + }); + + type("(string)", function () { + return this; + }); + + syntax["(identifier)"] = { + type: "(identifier)", + lbp: 0, + identifier: true, + nud: function () { + var v = this.value, + s = scope[v], + f; + + if (typeof s === "function") { + s = undefined; + } else if (typeof s === "boolean") { + f = funct; + funct = functions[0]; + addlabel(v, "var"); + s = funct; + funct = f; + } + if (funct === s) { + switch (funct[v]) { + case "unused": + funct[v] = "var"; + break; + case "unction": + funct[v] = "function"; + this["function"] = true; + break; + case "function": + this["function"] = true; + break; + case "label": + warning("'{a}' is a statement label.", token, v); + break; + } + } else if (funct["(global)"]) { + + if (option.undef && typeof predefined[v] !== "boolean") { + if (!(anonname === "typeof" || anonname === "delete") || + (nexttoken && (nexttoken.value === "." || nexttoken.value === "["))) { + + isundef(funct, "'{a}' is not defined.", token, v); + } + } + + note_implied(token); + } else { + + switch (funct[v]) { + case "closure": + case "function": + case "var": + case "unused": + warning("'{a}' used out of scope.", token, v); + break; + case "label": + warning("'{a}' is a statement label.", token, v); + break; + case "outer": + case "global": + break; + default: + if (s === true) { + funct[v] = true; + } else if (s === null) { + warning("'{a}' is not allowed.", token, v); + note_implied(token); + } else if (typeof s !== "object") { + if (option.undef) { + if (!(anonname === "typeof" || anonname === "delete") || + (nexttoken && + (nexttoken.value === "." || nexttoken.value === "["))) { + + isundef(funct, "'{a}' is not defined.", token, v); + } + } + funct[v] = true; + note_implied(token); + } else { + switch (s[v]) { + case "function": + case "unction": + this["function"] = true; + s[v] = "closure"; + funct[v] = s["(global)"] ? "global" : "outer"; + break; + case "var": + case "unused": + s[v] = "closure"; + funct[v] = s["(global)"] ? "global" : "outer"; + break; + case "closure": + funct[v] = s["(global)"] ? "global" : "outer"; + break; + case "label": + warning("'{a}' is a statement label.", token, v); + } + } + } + } + return this; + }, + led: function () { + error("Expected an operator and instead saw '{a}'.", + nexttoken, nexttoken.value); + } + }; + + type("(regexp)", function () { + return this; + }); + + delim("(endline)"); + delim("(begin)"); + delim("(end)").reach = true; + delim("</").reach = true; + delim("<!"); + delim("<!--"); + delim("-->"); + delim("(error)").reach = true; + delim("}").reach = true; + delim(")"); + delim("]"); + delim("\"").reach = true; + delim("'").reach = true; + delim(";"); + delim(":").reach = true; + delim(","); + delim("#"); + delim("@"); + reserve("else"); + reserve("case").reach = true; + reserve("catch"); + reserve("default").reach = true; + reserve("finally"); + reservevar("arguments", function (x) { + if (directive["use strict"] && funct["(global)"]) { + warning("Strict violation.", x); + } + }); + reservevar("eval"); + reservevar("false"); + reservevar("Infinity"); + reservevar("null"); + reservevar("this", function (x) { + if (directive["use strict"] && !option.validthis && ((funct["(statement)"] && + funct["(name)"].charAt(0) > "Z") || funct["(global)"])) { + warning("Possible strict violation.", x); + } + }); + reservevar("true"); + reservevar("undefined"); + assignop("=", "assign", 20); + assignop("+=", "assignadd", 20); + assignop("-=", "assignsub", 20); + assignop("*=", "assignmult", 20); + assignop("/=", "assigndiv", 20).nud = function () { + error("A regular expression literal can be confused with '/='."); + }; + assignop("%=", "assignmod", 20); + bitwiseassignop("&=", "assignbitand", 20); + bitwiseassignop("|=", "assignbitor", 20); + bitwiseassignop("^=", "assignbitxor", 20); + bitwiseassignop("<<=", "assignshiftleft", 20); + bitwiseassignop(">>=", "assignshiftright", 20); + bitwiseassignop(">>>=", "assignshiftrightunsigned", 20); + infix("?", function (left, that) { + that.left = left; + that.right = expression(10); + advance(":"); + that["else"] = expression(10); + return that; + }, 30); + + infix("||", "or", 40); + infix("&&", "and", 50); + bitwise("|", "bitor", 70); + bitwise("^", "bitxor", 80); + bitwise("&", "bitand", 90); + relation("==", function (left, right) { + var eqnull = option.eqnull && (left.value === "null" || right.value === "null"); + + if (!eqnull && option.eqeqeq) + warning("Expected '{a}' and instead saw '{b}'.", this, "===", "=="); + else if (isPoorRelation(left)) + warning("Use '{a}' to compare with '{b}'.", this, "===", left.value); + else if (isPoorRelation(right)) + warning("Use '{a}' to compare with '{b}'.", this, "===", right.value); + + return this; + }); + relation("==="); + relation("!=", function (left, right) { + var eqnull = option.eqnull && + (left.value === "null" || right.value === "null"); + + if (!eqnull && option.eqeqeq) { + warning("Expected '{a}' and instead saw '{b}'.", + this, "!==", "!="); + } else if (isPoorRelation(left)) { + warning("Use '{a}' to compare with '{b}'.", + this, "!==", left.value); + } else if (isPoorRelation(right)) { + warning("Use '{a}' to compare with '{b}'.", + this, "!==", right.value); + } + return this; + }); + relation("!=="); + relation("<"); + relation(">"); + relation("<="); + relation(">="); + bitwise("<<", "shiftleft", 120); + bitwise(">>", "shiftright", 120); + bitwise(">>>", "shiftrightunsigned", 120); + infix("in", "in", 120); + infix("instanceof", "instanceof", 120); + infix("+", function (left, that) { + var right = expression(130); + if (left && right && left.id === "(string)" && right.id === "(string)") { + left.value += right.value; + left.character = right.character; + if (!option.scripturl && jx.test(left.value)) { + warning("JavaScript URL.", left); + } + return left; + } + that.left = left; + that.right = right; + return that; + }, 130); + prefix("+", "num"); + prefix("+++", function () { + warning("Confusing pluses."); + this.right = expression(150); + this.arity = "unary"; + return this; + }); + infix("+++", function (left) { + warning("Confusing pluses."); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix("-", "sub", 130); + prefix("-", "neg"); + prefix("---", function () { + warning("Confusing minuses."); + this.right = expression(150); + this.arity = "unary"; + return this; + }); + infix("---", function (left) { + warning("Confusing minuses."); + this.left = left; + this.right = expression(130); + return this; + }, 130); + infix("*", "mult", 140); + infix("/", "div", 140); + infix("%", "mod", 140); + + suffix("++", "postinc"); + prefix("++", "preinc"); + syntax["++"].exps = true; + + suffix("--", "postdec"); + prefix("--", "predec"); + syntax["--"].exps = true; + prefix("delete", function () { + var p = expression(0); + if (!p || (p.id !== "." && p.id !== "[")) { + warning("Variables should not be deleted."); + } + this.first = p; + return this; + }).exps = true; + + prefix("~", function () { + if (option.bitwise) { + warning("Unexpected '{a}'.", this, "~"); + } + expression(150); + return this; + }); + + prefix("!", function () { + this.right = expression(150); + this.arity = "unary"; + if (bang[this.right.id] === true) { + warning("Confusing use of '{a}'.", this, "!"); + } + return this; + }); + prefix("typeof", "typeof"); + prefix("new", function () { + var c = expression(155), i; + if (c && c.id !== "function") { + if (c.identifier) { + c["new"] = true; + switch (c.value) { + case "Number": + case "String": + case "Boolean": + case "Math": + case "JSON": + warning("Do not use {a} as a constructor.", prevtoken, c.value); + break; + case "Function": + if (!option.evil) { + warning("The Function constructor is eval."); + } + break; + case "Date": + case "RegExp": + break; + default: + if (c.id !== "function") { + i = c.value.substr(0, 1); + if (option.newcap && (i < "A" || i > "Z") && !is_own(global, c.value)) { + warning("A constructor name should start with an uppercase letter.", + token); + } + } + } + } else { + if (c.id !== "." && c.id !== "[" && c.id !== "(") { + warning("Bad constructor.", token); + } + } + } else { + if (!option.supernew) + warning("Weird construction. Delete 'new'.", this); + } + adjacent(token, nexttoken); + if (nexttoken.id !== "(" && !option.supernew) { + warning("Missing '()' invoking a constructor.", + token, token.value); + } + this.first = c; + return this; + }); + syntax["new"].exps = true; + + prefix("void").exps = true; + + infix(".", function (left, that) { + adjacent(prevtoken, token); + nobreak(); + var m = identifier(); + if (typeof m === "string") { + countMember(m); + } + that.left = left; + that.right = m; + if (left && left.value === "arguments" && (m === "callee" || m === "caller")) { + if (option.noarg) + warning("Avoid arguments.{a}.", left, m); + else if (directive["use strict"]) + error("Strict violation."); + } else if (!option.evil && left && left.value === "document" && + (m === "write" || m === "writeln")) { + warning("document.write can be a form of eval.", left); + } + if (!option.evil && (m === "eval" || m === "execScript")) { + warning("eval is evil."); + } + return that; + }, 160, true); + + infix("(", function (left, that) { + if (prevtoken.id !== "}" && prevtoken.id !== ")") { + nobreak(prevtoken, token); + } + nospace(); + if (option.immed && !left.immed && left.id === "function") { + warning("Wrap an immediate function invocation in parentheses " + + "to assist the reader in understanding that the expression " + + "is the result of a function, and not the function itself."); + } + var n = 0, + p = []; + if (left) { + if (left.type === "(identifier)") { + if (left.value.match(/^[A-Z]([A-Z0-9_$]*[a-z][A-Za-z0-9_$]*)?$/)) { + if ("Number String Boolean Date Object".indexOf(left.value) === -1) { + if (left.value === "Math") { + warning("Math is not a function.", left); + } else if (option.newcap) { + warning("Missing 'new' prefix when invoking a constructor.", left); + } + } + } + } + } + if (nexttoken.id !== ")") { + for (;;) { + p[p.length] = expression(10); + n += 1; + if (nexttoken.id !== ",") { + break; + } + comma(); + } + } + advance(")"); + nospace(prevtoken, token); + if (typeof left === "object") { + if (left.value === "parseInt" && n === 1) { + warning("Missing radix parameter.", token); + } + if (!option.evil) { + if (left.value === "eval" || left.value === "Function" || + left.value === "execScript") { + warning("eval is evil.", left); + + if (p[0] && [0].id === "(string)") { + addInternalSrc(left, p[0].value); + } + } else if (p[0] && p[0].id === "(string)" && + (left.value === "setTimeout" || + left.value === "setInterval")) { + warning( + "Implied eval is evil. Pass a function instead of a string.", left); + addInternalSrc(left, p[0].value); + } else if (p[0] && p[0].id === "(string)" && + left.value === "." && + left.left.value === "window" && + (left.right === "setTimeout" || + left.right === "setInterval")) { + warning( + "Implied eval is evil. Pass a function instead of a string.", left); + addInternalSrc(left, p[0].value); + } + } + if (!left.identifier && left.id !== "." && left.id !== "[" && + left.id !== "(" && left.id !== "&&" && left.id !== "||" && + left.id !== "?") { + warning("Bad invocation.", left); + } + } + that.left = left; + return that; + }, 155, true).exps = true; + + prefix("(", function () { + nospace(); + if (nexttoken.id === "function") { + nexttoken.immed = true; + } + var v = expression(0); + advance(")", this); + nospace(prevtoken, token); + if (option.immed && v.id === "function") { + if (nexttoken.id !== "(" && + (nexttoken.id !== "." || (peek().value !== "call" && peek().value !== "apply"))) { + warning( "Do not wrap function literals in parens unless they are to be immediately invoked.", - this); - } - } - return v; - }); - - infix('[', function (left, that) { - nobreak(prevtoken, token); - nospace(); - var e = expression(0), s; - if (e && e.type === '(string)') { - if (!option.evil && (e.value === 'eval' || e.value === 'execScript')) { - warning("eval is evil.", that); - } - countMember(e.value); - if (!option.sub && ix.test(e.value)) { - s = syntax[e.value]; - if (!s || !s.reserved) { - warning("['{a}'] is better written in dot notation.", - e, e.value); - } - } - } - advance(']', that); - nospace(prevtoken, token); - that.left = left; - that.right = e; - return that; - }, 160, true); - - prefix('[', function () { - var b = token.line !== nexttoken.line; - this.first = []; - if (b) { - indent += option.indent; - if (nexttoken.from === indent + option.indent) { - indent += option.indent; - } - } - while (nexttoken.id !== '(end)') { - while (nexttoken.id === ',') { - warning("Extra comma."); - advance(','); - } - if (nexttoken.id === ']') { - break; - } - if (b && token.line !== nexttoken.line) { - indentation(); - } - this.first.push(expression(10)); - if (nexttoken.id === ',') { - comma(); - if (nexttoken.id === ']' && !option.es5) { - warning("Extra comma.", token); - break; - } - } else { - break; - } - } - if (b) { - indent -= option.indent; - indentation(); - } - advance(']', this); - return this; - }, 160); - - - function property_name() { - var id = optionalidentifier(true); - if (!id) { - if (nexttoken.id === '(string)') { - id = nexttoken.value; - advance(); - } else if (nexttoken.id === '(number)') { - id = nexttoken.value.toString(); - advance(); - } - } - return id; - } - - - function functionparams() { - var i, t = nexttoken, p = []; - advance('('); - nospace(); - if (nexttoken.id === ')') { - advance(')'); - nospace(prevtoken, token); - return; - } - for (;;) { - i = identifier(true); - p.push(i); - addlabel(i, 'parameter'); - if (nexttoken.id === ',') { - comma(); - } else { - advance(')', t); - nospace(prevtoken, token); - return p; - } - } - } - - - function doFunction(i, statement) { - var f, - oldOption = option, - oldScope = scope; - - option = Object.create(option); - scope = Object.create(scope); - - funct = { - '(name)' : i || '"' + anonname + '"', - '(line)' : nexttoken.line, - '(context)' : funct, - '(breakage)' : 0, - '(loopage)' : 0, - '(scope)' : scope, - '(statement)': statement - }; - f = funct; - token.funct = funct; - functions.push(funct); - if (i) { - addlabel(i, 'function'); - } - funct['(params)'] = functionparams(); - - block(false); - scope = oldScope; - option = oldOption; - funct['(last)'] = token.line; - funct = funct['(context)']; - return f; - } - - - (function (x) { - x.nud = function () { - var b, f, i, j, p, seen = {}, t; - - b = token.line !== nexttoken.line; - if (b) { - indent += option.indent; - if (nexttoken.from === indent + option.indent) { - indent += option.indent; - } - } - for (;;) { - if (nexttoken.id === '}') { - break; - } - if (b) { - indentation(); - } - if (nexttoken.value === 'get' && peek().id !== ':') { - advance('get'); - if (!option.es5) { - error("get/set are ES5 features."); - } - i = property_name(); - if (!i) { - error("Missing property name."); - } - t = nexttoken; - adjacent(token, nexttoken); - f = doFunction(); - if (!option.loopfunc && funct['(loopage)']) { - warning("Don't make functions within a loop.", t); - } - p = f['(params)']; - if (p) { - warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i); - } - adjacent(token, nexttoken); - advance(','); - indentation(); - advance('set'); - j = property_name(); - if (i !== j) { - error("Expected {a} and instead saw {b}.", token, i, j); - } - t = nexttoken; - adjacent(token, nexttoken); - f = doFunction(); - p = f['(params)']; - if (!p || p.length !== 1 || p[0] !== 'value') { - warning("Expected (value) in set {a} function.", t, i); - } - } else { - i = property_name(); - if (typeof i !== 'string') { - break; - } - advance(':'); - nonadjacent(token, nexttoken); - expression(10); - } - if (seen[i] === true) { - warning("Duplicate member '{a}'.", nexttoken, i); - } - seen[i] = true; - countMember(i); - if (nexttoken.id === ',') { - comma(); - if (nexttoken.id === ',') { - warning("Extra comma.", token); - } else if (nexttoken.id === '}' && !option.es5) { - warning("Extra comma.", token); - } - } else { - break; - } - } - if (b) { - indent -= option.indent; - indentation(); - } - advance('}', this); - return this; - }; - x.fud = function () { - error("Expected to see a statement and instead saw a block.", token); - }; - }(delim('{'))); - - var varstatement = stmt('var', function (prefix) { - // JavaScript does not have block scope. It only has function scope. So, - // declaring a variable in a block can have unexpected consequences. - var id, name, value; - - if (funct['(onevar)'] && option.onevar) { - warning("Too many var statements."); - } else if (!funct['(global)']) { - funct['(onevar)'] = true; - } - this.first = []; - for (;;) { - nonadjacent(token, nexttoken); - id = identifier(); - if (funct['(global)'] && predefined[id] === false) { - warning("Redefinition of '{a}'.", token, id); - } - addlabel(id, 'unused'); - if (prefix) { - break; - } - name = token; - this.first.push(token); - if (nexttoken.id === '=') { - nonadjacent(token, nexttoken); - advance('='); - nonadjacent(token, nexttoken); - if (nexttoken.id === 'undefined') { - warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id); - } - if (peek(0).id === '=' && nexttoken.identifier) { - error("Variable {a} was not declared correctly.", - nexttoken, nexttoken.value); - } - value = expression(0); - name.first = value; - } - if (nexttoken.id !== ',') { - break; - } - comma(); - } - return this; - }); - varstatement.exps = true; - - blockstmt('function', function () { - if (inblock) { - warning("Function declarations should not be placed in blocks. " + - "Use a function expression or move the statement to the top of " + - "the outer function.", token); - - } - var i = identifier(); - adjacent(token, nexttoken); - addlabel(i, 'unction'); - doFunction(i, true); - if (nexttoken.id === '(' && nexttoken.line === token.line) { - error( + this); + } + } + + return v; + }); + + infix("[", function (left, that) { + nobreak(prevtoken, token); + nospace(); + var e = expression(0), s; + if (e && e.type === "(string)") { + if (!option.evil && (e.value === "eval" || e.value === "execScript")) { + warning("eval is evil.", that); + } + countMember(e.value); + if (!option.sub && ix.test(e.value)) { + s = syntax[e.value]; + if (!s || !s.reserved) { + warning("['{a}'] is better written in dot notation.", + prevtoken, e.value); + } + } + } + advance("]", that); + nospace(prevtoken, token); + that.left = left; + that.right = e; + return that; + }, 160, true); + + prefix("[", function () { + var b = token.line !== nexttoken.line; + this.first = []; + if (b) { + indent += option.indent; + if (nexttoken.from === indent + option.indent) { + indent += option.indent; + } + } + while (nexttoken.id !== "(end)") { + while (nexttoken.id === ",") { + if (!option.es5) + warning("Extra comma."); + advance(","); + } + if (nexttoken.id === "]") { + break; + } + if (b && token.line !== nexttoken.line) { + indentation(); + } + this.first.push(expression(10)); + if (nexttoken.id === ",") { + comma(); + if (nexttoken.id === "]" && !option.es5) { + warning("Extra comma.", token); + break; + } + } else { + break; + } + } + if (b) { + indent -= option.indent; + indentation(); + } + advance("]", this); + return this; + }, 160); + + + function property_name() { + var id = optionalidentifier(true); + if (!id) { + if (nexttoken.id === "(string)") { + id = nexttoken.value; + advance(); + } else if (nexttoken.id === "(number)") { + id = nexttoken.value.toString(); + advance(); + } + } + return id; + } + + + function functionparams() { + var next = nexttoken; + var params = []; + var ident; + + advance("("); + nospace(); + + if (nexttoken.id === ")") { + advance(")"); + return; + } + + for (;;) { + ident = identifier(true); + params.push(ident); + addlabel(ident, "unused", token); + if (nexttoken.id === ",") { + comma(); + } else { + advance(")", next); + nospace(prevtoken, token); + return params; + } + } + } + + + function doFunction(name, statement) { + var f; + var oldOption = option; + var oldScope = scope; + + option = Object.create(option); + scope = Object.create(scope); + + funct = { + "(name)" : name || "\"" + anonname + "\"", + "(line)" : nexttoken.line, + "(character)": nexttoken.character, + "(context)" : funct, + "(breakage)" : 0, + "(loopage)" : 0, + "(metrics)" : createMetrics(nexttoken), + "(scope)" : scope, + "(statement)": statement, + "(tokens)" : {} + }; + + f = funct; + token.funct = funct; + + functions.push(funct); + + if (name) { + addlabel(name, "function"); + } + + funct["(params)"] = functionparams(); + funct["(metrics)"].verifyMaxParametersPerFunction(funct["(params)"]); + + block(false, false, true); + + funct["(metrics)"].verifyMaxStatementsPerFunction(); + funct["(metrics)"].verifyMaxComplexityPerFunction(); + + scope = oldScope; + option = oldOption; + funct["(last)"] = token.line; + funct["(lastcharacter)"] = token.character; + funct = funct["(context)"]; + + return f; + } + + function createMetrics(functionStartToken) { + return { + statementCount: 0, + nestedBlockDepth: -1, + ComplexityCount: 1, + verifyMaxStatementsPerFunction: function () { + if (option.maxstatements && + this.statementCount > option.maxstatements) { + var message = "Too many statements per function (" + this.statementCount + ")."; + warning(message, functionStartToken); + } + }, + + verifyMaxParametersPerFunction: function (params) { + params = params || []; + + if (option.maxparams && params.length > option.maxparams) { + var message = "Too many parameters per function (" + params.length + ")."; + warning(message, functionStartToken); + } + }, + + verifyMaxNestedBlockDepthPerFunction: function () { + if (option.maxdepth && + this.nestedBlockDepth > 0 && + this.nestedBlockDepth === option.maxdepth + 1) { + var message = "Blocks are nested too deeply (" + this.nestedBlockDepth + ")."; + warning(message); + } + }, + + verifyMaxComplexityPerFunction: function () { + var max = option.maxcomplexity; + var cc = this.ComplexityCount; + if (max && cc > max) { + var message = "Cyclomatic complexity is too high per function (" + cc + ")."; + warning(message, functionStartToken); + } + } + }; + } + + function increaseComplexityCount() { + funct["(metrics)"].ComplexityCount += 1; + } + + + (function (x) { + x.nud = function () { + var b, f, i, p, t; + var props = {}; // All properties, including accessors + + function saveProperty(name, token) { + if (props[name] && is_own(props, name)) + warning("Duplicate member '{a}'.", nexttoken, i); + else + props[name] = {}; + + props[name].basic = true; + props[name].basicToken = token; + } + + function saveSetter(name, token) { + if (props[name] && is_own(props, name)) { + if (props[name].basic || props[name].setter) + warning("Duplicate member '{a}'.", nexttoken, i); + } else { + props[name] = {}; + } + + props[name].setter = true; + props[name].setterToken = token; + } + + function saveGetter(name) { + if (props[name] && is_own(props, name)) { + if (props[name].basic || props[name].getter) + warning("Duplicate member '{a}'.", nexttoken, i); + } else { + props[name] = {}; + } + + props[name].getter = true; + props[name].getterToken = token; + } + + b = token.line !== nexttoken.line; + if (b) { + indent += option.indent; + if (nexttoken.from === indent + option.indent) { + indent += option.indent; + } + } + for (;;) { + if (nexttoken.id === "}") { + break; + } + if (b) { + indentation(); + } + if (nexttoken.value === "get" && peek().id !== ":") { + advance("get"); + if (!option.es5) { + error("get/set are ES5 features."); + } + i = property_name(); + if (!i) { + error("Missing property name."); + } + saveGetter(i); + t = nexttoken; + adjacent(token, nexttoken); + f = doFunction(); + p = f["(params)"]; + if (p) { + warning("Unexpected parameter '{a}' in get {b} function.", t, p[0], i); + } + adjacent(token, nexttoken); + } else if (nexttoken.value === "set" && peek().id !== ":") { + advance("set"); + if (!option.es5) { + error("get/set are ES5 features."); + } + i = property_name(); + if (!i) { + error("Missing property name."); + } + saveSetter(i, nexttoken); + t = nexttoken; + adjacent(token, nexttoken); + f = doFunction(); + p = f["(params)"]; + if (!p || p.length !== 1) { + warning("Expected a single parameter in set {a} function.", t, i); + } + } else { + i = property_name(); + saveProperty(i, nexttoken); + if (typeof i !== "string") { + break; + } + advance(":"); + nonadjacent(token, nexttoken); + expression(10); + } + + countMember(i); + if (nexttoken.id === ",") { + comma(); + if (nexttoken.id === ",") { + warning("Extra comma.", token); + } else if (nexttoken.id === "}" && !option.es5) { + warning("Extra comma.", token); + } + } else { + break; + } + } + if (b) { + indent -= option.indent; + indentation(); + } + advance("}", this); + if (option.es5) { + for (var name in props) { + if (is_own(props, name) && props[name].setter && !props[name].getter) { + warning("Setter is defined without getter.", props[name].setterToken); + } + } + } + return this; + }; + x.fud = function () { + error("Expected to see a statement and instead saw a block.", token); + }; + }(delim("{"))); + + useESNextSyntax = function () { + var conststatement = stmt("const", function (prefix) { + var id, name, value; + + this.first = []; + for (;;) { + nonadjacent(token, nexttoken); + id = identifier(); + if (funct[id] === "const") { + warning("const '" + id + "' has already been declared"); + } + if (funct["(global)"] && predefined[id] === false) { + warning("Redefinition of '{a}'.", token, id); + } + addlabel(id, "const"); + if (prefix) { + break; + } + name = token; + this.first.push(token); + + if (nexttoken.id !== "=") { + warning("const " + + "'{a}' is initialized to 'undefined'.", token, id); + } + + if (nexttoken.id === "=") { + nonadjacent(token, nexttoken); + advance("="); + nonadjacent(token, nexttoken); + if (nexttoken.id === "undefined") { + warning("It is not necessary to initialize " + + "'{a}' to 'undefined'.", token, id); + } + if (peek(0).id === "=" && nexttoken.identifier) { + error("Constant {a} was not declared correctly.", + nexttoken, nexttoken.value); + } + value = expression(0); + name.first = value; + } + + if (nexttoken.id !== ",") { + break; + } + comma(); + } + return this; + }); + conststatement.exps = true; + }; + + var varstatement = stmt("var", function (prefix) { + var id, name, value; + + if (funct["(onevar)"] && option.onevar) { + warning("Too many var statements."); + } else if (!funct["(global)"]) { + funct["(onevar)"] = true; + } + + this.first = []; + + for (;;) { + nonadjacent(token, nexttoken); + id = identifier(); + + if (option.esnext && funct[id] === "const") { + warning("const '" + id + "' has already been declared"); + } + + if (funct["(global)"] && predefined[id] === false) { + warning("Redefinition of '{a}'.", token, id); + } + + addlabel(id, "unused", token); + + if (prefix) { + break; + } + + name = token; + this.first.push(token); + + if (nexttoken.id === "=") { + nonadjacent(token, nexttoken); + advance("="); + nonadjacent(token, nexttoken); + if (nexttoken.id === "undefined") { + warning("It is not necessary to initialize '{a}' to 'undefined'.", token, id); + } + if (peek(0).id === "=" && nexttoken.identifier) { + error("Variable {a} was not declared correctly.", + nexttoken, nexttoken.value); + } + value = expression(0); + name.first = value; + } + if (nexttoken.id !== ",") { + break; + } + comma(); + } + return this; + }); + varstatement.exps = true; + + blockstmt("function", function () { + if (inblock) { + warning("Function declarations should not be placed in blocks. " + + "Use a function expression or move the statement to the top of " + + "the outer function.", token); + + } + var i = identifier(); + if (option.esnext && funct[i] === "const") { + warning("const '" + i + "' has already been declared"); + } + adjacent(token, nexttoken); + addlabel(i, "unction", token); + + doFunction(i, { statement: true }); + if (nexttoken.id === "(" && nexttoken.line === token.line) { + error( "Function declarations are not invocable. Wrap the whole function invocation in parens."); - } - return this; - }); - - prefix('function', function () { - var i = optionalidentifier(); - if (i) { - adjacent(token, nexttoken); - } else { - nonadjacent(token, nexttoken); - } - doFunction(i); - if (!option.loopfunc && funct['(loopage)']) { - warning("Don't make functions within a loop."); - } - return this; - }); - - blockstmt('if', function () { - var t = nexttoken; - advance('('); - nonadjacent(this, t); - nospace(); - expression(20); - if (nexttoken.id === '=') { - if (!option.boss) - warning("Expected a conditional expression and instead saw an assignment."); - advance('='); - expression(20); - } - advance(')', t); - nospace(prevtoken, token); - block(true, true); - if (nexttoken.id === 'else') { - nonadjacent(token, nexttoken); - advance('else'); - if (nexttoken.id === 'if' || nexttoken.id === 'switch') { - statement(true); - } else { - block(true, true); - } - } - return this; - }); - - blockstmt('try', function () { - var b, e, s; - - block(false); - if (nexttoken.id === 'catch') { - advance('catch'); - nonadjacent(token, nexttoken); - advance('('); - s = scope; - scope = Object.create(s); - e = nexttoken.value; - if (nexttoken.type !== '(identifier)') { - warning("Expected an identifier and instead saw '{a}'.", - nexttoken, e); - } else { - addlabel(e, 'exception'); - } - advance(); - advance(')'); - block(false); - b = true; - scope = s; - } - if (nexttoken.id === 'finally') { - advance('finally'); - block(false); - return; - } else if (!b) { - error("Expected '{a}' and instead saw '{b}'.", - nexttoken, 'catch', nexttoken.value); - } - return this; - }); - - blockstmt('while', function () { - var t = nexttoken; - funct['(breakage)'] += 1; - funct['(loopage)'] += 1; - advance('('); - nonadjacent(this, t); - nospace(); - expression(20); - if (nexttoken.id === '=') { - if (!option.boss) - warning("Expected a conditional expression and instead saw an assignment."); - advance('='); - expression(20); - } - advance(')', t); - nospace(prevtoken, token); - block(true, true); - funct['(breakage)'] -= 1; - funct['(loopage)'] -= 1; - return this; - }).labelled = true; - - reserve('with'); - - blockstmt('switch', function () { - var t = nexttoken, - g = false; - funct['(breakage)'] += 1; - advance('('); - nonadjacent(this, t); - nospace(); - this.condition = expression(20); - advance(')', t); - nospace(prevtoken, token); - nonadjacent(token, nexttoken); - t = nexttoken; - advance('{'); - nonadjacent(token, nexttoken); - indent += option.indent; - this.cases = []; - for (;;) { - switch (nexttoken.id) { - case 'case': - switch (funct['(verb)']) { - case 'break': - case 'case': - case 'continue': - case 'return': - case 'switch': - case 'throw': - break; - default: - // You can tell JSHint that you don't use break intentionally by - // adding a comment /* falls through */ on a line just before - // the next `case`. - if (!ft.test(lines[nexttoken.line - 2])) { - warning( - "Expected a 'break' statement before 'case'.", - token); - } - } - indentation(-option.indent); - advance('case'); - this.cases.push(expression(20)); - g = true; - advance(':'); - funct['(verb)'] = 'case'; - break; - case 'default': - switch (funct['(verb)']) { - case 'break': - case 'continue': - case 'return': - case 'throw': - break; - default: - if (!ft.test(lines[nexttoken.line - 2])) { - warning( - "Expected a 'break' statement before 'default'.", - token); - } - } - indentation(-option.indent); - advance('default'); - g = true; - advance(':'); - break; - case '}': - indent -= option.indent; - indentation(); - advance('}', t); - if (this.cases.length === 1 || this.condition.id === 'true' || - this.condition.id === 'false') { - warning("This 'switch' should be an 'if'.", this); - } - funct['(breakage)'] -= 1; - funct['(verb)'] = undefined; - return; - case '(end)': - error("Missing '{a}'.", nexttoken, '}'); - return; - default: - if (g) { - switch (token.id) { - case ',': - error("Each value should have its own case label."); - return; - case ':': - statements(); - break; - default: - error("Missing ':' on a case clause.", token); - } - } else { - error("Expected '{a}' and instead saw '{b}'.", - nexttoken, 'case', nexttoken.value); - } - } - } - }).labelled = true; - - stmt('debugger', function () { - if (!option.debug) { - warning("All 'debugger' statements should be removed."); - } - return this; - }).exps = true; - - (function () { - var x = stmt('do', function () { - funct['(breakage)'] += 1; - funct['(loopage)'] += 1; - this.first = block(true); - advance('while'); - var t = nexttoken; - nonadjacent(token, t); - advance('('); - nospace(); - expression(20); - if (nexttoken.id === '=') { - if (!option.boss) - warning("Expected a conditional expression and instead saw an assignment."); - advance('='); - expression(20); - } - advance(')', t); - nospace(prevtoken, token); - funct['(breakage)'] -= 1; - funct['(loopage)'] -= 1; - return this; - }); - x.labelled = true; - x.exps = true; - }()); - - blockstmt('for', function () { - var s, t = nexttoken; - funct['(breakage)'] += 1; - funct['(loopage)'] += 1; - advance('('); - nonadjacent(this, t); - nospace(); - if (peek(nexttoken.id === 'var' ? 1 : 0).id === 'in') { - if (nexttoken.id === 'var') { - advance('var'); - varstatement.fud.call(varstatement, true); - } else { - switch (funct[nexttoken.value]) { - case 'unused': - funct[nexttoken.value] = 'var'; - break; - case 'var': - break; - default: - warning("Bad for in variable '{a}'.", - nexttoken, nexttoken.value); - } - advance(); - } - advance('in'); - expression(20); - advance(')', t); - s = block(true, true); - if (option.forin && (s.length > 1 || typeof s[0] !== 'object' || - s[0].value !== 'if')) { - warning("The body of a for in should be wrapped in an if statement to filter " + - "unwanted properties from the prototype.", this); - } - funct['(breakage)'] -= 1; - funct['(loopage)'] -= 1; - return this; - } else { - if (nexttoken.id !== ';') { - if (nexttoken.id === 'var') { - advance('var'); - varstatement.fud.call(varstatement); - } else { - for (;;) { - expression(0, 'for'); - if (nexttoken.id !== ',') { - break; - } - comma(); - } - } - } - nolinebreak(token); - advance(';'); - if (nexttoken.id !== ';') { - expression(20); - if (nexttoken.id === '=') { - if (!option.boss) - warning("Expected a conditional expression and instead saw an assignment."); - advance('='); - expression(20); - } - } - nolinebreak(token); - advance(';'); - if (nexttoken.id === ';') { - error("Expected '{a}' and instead saw '{b}'.", - nexttoken, ')', ';'); - } - if (nexttoken.id !== ')') { - for (;;) { - expression(0, 'for'); - if (nexttoken.id !== ',') { - break; - } - comma(); - } - } - advance(')', t); - nospace(prevtoken, token); - block(true, true); - funct['(breakage)'] -= 1; - funct['(loopage)'] -= 1; - return this; - } - }).labelled = true; - - - stmt('break', function () { - var v = nexttoken.value; - if (funct['(breakage)'] === 0) { - warning("Unexpected '{a}'.", nexttoken, this.value); - } - nolinebreak(this); - if (nexttoken.id !== ';') { - if (token.line === nexttoken.line) { - if (funct[v] !== 'label') { - warning("'{a}' is not a statement label.", nexttoken, v); - } else if (scope[v] !== funct) { - warning("'{a}' is out of scope.", nexttoken, v); - } - this.first = nexttoken; - advance(); - } - } - reachable('break'); - return this; - }).exps = true; - - - stmt('continue', function () { - var v = nexttoken.value; - if (funct['(breakage)'] === 0) { - warning("Unexpected '{a}'.", nexttoken, this.value); - } - nolinebreak(this); - if (nexttoken.id !== ';') { - if (token.line === nexttoken.line) { - if (funct[v] !== 'label') { - warning("'{a}' is not a statement label.", nexttoken, v); - } else if (scope[v] !== funct) { - warning("'{a}' is out of scope.", nexttoken, v); - } - this.first = nexttoken; - advance(); - } - } else if (!funct['(loopage)']) { - warning("Unexpected '{a}'.", nexttoken, this.value); - } - reachable('continue'); - return this; - }).exps = true; - - - stmt('return', function () { - nolinebreak(this); - if (nexttoken.id === '(regexp)') { - warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator."); - } - if (nexttoken.id !== ';' && !nexttoken.reach) { - nonadjacent(token, nexttoken); - this.first = expression(20); - } - reachable('return'); - return this; - }).exps = true; - - - stmt('throw', function () { - nolinebreak(this); - nonadjacent(token, nexttoken); - this.first = expression(20); - reachable('throw'); - return this; - }).exps = true; - -// Superfluous reserved words - - reserve('class'); - reserve('const'); - reserve('enum'); - reserve('export'); - reserve('extends'); - reserve('import'); - reserve('super'); - - reserve('let'); - reserve('yield'); - reserve('implements'); - reserve('interface'); - reserve('package'); - reserve('private'); - reserve('protected'); - reserve('public'); - reserve('static'); - - -// Parse JSON - - function jsonValue() { - - function jsonObject() { - var o = {}, t = nexttoken; - advance('{'); - if (nexttoken.id !== '}') { - for (;;) { - if (nexttoken.id === '(end)') { - error("Missing '}' to match '{' from line {a}.", - nexttoken, t.line); - } else if (nexttoken.id === '}') { - warning("Unexpected comma.", token); - break; - } else if (nexttoken.id === ',') { - error("Unexpected comma.", nexttoken); - } else if (nexttoken.id !== '(string)') { - warning("Expected a string and instead saw {a}.", - nexttoken, nexttoken.value); - } - if (o[nexttoken.value] === true) { - warning("Duplicate key '{a}'.", - nexttoken, nexttoken.value); - } else if ((nexttoken.value === '__proto__' && - !option.proto) || (nexttoken.value === '__iterator__' && - !option.iterator)) { - warning("The '{a}' key may produce unexpected results.", - nexttoken, nexttoken.value); - } else { - o[nexttoken.value] = true; - } - advance(); - advance(':'); - jsonValue(); - if (nexttoken.id !== ',') { - break; - } - advance(','); - } - } - advance('}'); - } - - function jsonArray() { - var t = nexttoken; - advance('['); - if (nexttoken.id !== ']') { - for (;;) { - if (nexttoken.id === '(end)') { - error("Missing ']' to match '[' from line {a}.", - nexttoken, t.line); - } else if (nexttoken.id === ']') { - warning("Unexpected comma.", token); - break; - } else if (nexttoken.id === ',') { - error("Unexpected comma.", nexttoken); - } - jsonValue(); - if (nexttoken.id !== ',') { - break; - } - advance(','); - } - } - advance(']'); - } - - switch (nexttoken.id) { - case '{': - jsonObject(); - break; - case '[': - jsonArray(); - break; - case 'true': - case 'false': - case 'null': - case '(number)': - case '(string)': - advance(); - break; - case '-': - advance('-'); - if (token.character !== nexttoken.from) { - warning("Unexpected space after '-'.", token); - } - adjacent(token, nexttoken); - advance('(number)'); - break; - default: - error("Expected a JSON value.", nexttoken); - } - } - - -// The actual JSHINT function itself. - - var itself = function (s, o, g) { - var a, i, k; - JSHINT.errors = []; - predefined = Object.create(standard); - combine(predefined, g || {}); - if (o) { - a = o.predef; - if (a) { - if (Array.isArray(a)) { - for (i = 0; i < a.length; i += 1) { - predefined[a[i]] = true; - } - } else if (typeof a === 'object') { - k = Object.keys(a); - for (i = 0; i < k.length; i += 1) { - predefined[k[i]] = !!a[k[i]]; - } - } - } - option = o; - } else { - option = {}; - } - option.indent = option.indent || 4; - option.maxerr = option.maxerr || 50; - - tab = ''; - for (i = 0; i < option.indent; i += 1) { - tab += ' '; - } - indent = 1; - global = Object.create(predefined); - scope = global; - funct = { - '(global)': true, - '(name)': '(global)', - '(scope)': scope, - '(breakage)': 0, - '(loopage)': 0 - }; - functions = [funct]; - urls = []; - src = false; - stack = null; - member = {}; - membersOnly = null; - implied = {}; - inblock = false; - lookahead = []; - jsonmode = false; - warnings = 0; - lex.init(s); - prereg = true; - strict_mode = false; - - prevtoken = token = nexttoken = syntax['(begin)']; - assume(); - - try { - advance(); - switch (nexttoken.id) { - case '{': - case '[': - option.laxbreak = true; - jsonmode = true; - jsonValue(); - break; - default: - if (nexttoken.value === 'use strict') { - if (!option.globalstrict) - warning("Use the function form of \"use strict\"."); - use_strict(); - } - statements('lib'); - } - advance('(end)'); - } catch (e) { - if (e) { - JSHINT.errors.push({ - reason : e.message, - line : e.line || nexttoken.line, - character : e.character || nexttoken.from - }, null); - } - } - return JSHINT.errors.length === 0; - }; - - -// Data summary. - - itself.data = function () { - - var data = {functions: []}, fu, globals, implieds = [], f, i, j, - members = [], n, unused = [], v; - if (itself.errors.length) { - data.errors = itself.errors; - } - - if (jsonmode) { - data.json = true; - } - - for (n in implied) { - if (is_own(implied, n)) { - implieds.push({ - name: n, - line: implied[n] - }); - } - } - if (implieds.length > 0) { - data.implieds = implieds; - } - - if (urls.length > 0) { - data.urls = urls; - } - - globals = Object.keys(scope); - if (globals.length > 0) { - data.globals = globals; - } - - for (i = 1; i < functions.length; i += 1) { - f = functions[i]; - fu = {}; - for (j = 0; j < functionicity.length; j += 1) { - fu[functionicity[j]] = []; - } - for (n in f) { - if (is_own(f, n) && n.charAt(0) !== '(') { - v = f[n]; - if (v === 'unction') { - v = 'unused'; - } - if (Array.isArray(fu[v])) { - fu[v].push(n); - if (v === 'unused') { - unused.push({ - name: n, - line: f['(line)'], - 'function': f['(name)'] - }); - } - } - } - } - for (j = 0; j < functionicity.length; j += 1) { - if (fu[functionicity[j]].length === 0) { - delete fu[functionicity[j]]; - } - } - fu.name = f['(name)']; - fu.param = f['(params)']; - fu.line = f['(line)']; - fu.last = f['(last)']; - data.functions.push(fu); - } - - if (unused.length > 0) { - data.unused = unused; - } - - members = []; - for (n in member) { - if (typeof member[n] === 'number') { - data.member = member; - break; - } - } - - return data; - }; - - itself.report = function (option) { - var data = itself.data(); - - var a = [], c, e, err, f, i, k, l, m = '', n, o = [], s; - - function detail(h, array) { - var b, i, singularity; - if (array) { - o.push('<div><i>' + h + '</i> '); - array = array.sort(); - for (i = 0; i < array.length; i += 1) { - if (array[i] !== singularity) { - singularity = array[i]; - o.push((b ? ', ' : '') + singularity); - b = true; - } - } - o.push('</div>'); - } - } - - - if (data.errors || data.implieds || data.unused) { - err = true; - o.push('<div id=errors><i>Error:</i>'); - if (data.errors) { - for (i = 0; i < data.errors.length; i += 1) { - c = data.errors[i]; - if (c) { - e = c.evidence || ''; - o.push('<p>Problem' + (isFinite(c.line) ? ' at line ' + - c.line + ' character ' + c.character : '') + - ': ' + c.reason.entityify() + - '</p><p class=evidence>' + - (e && (e.length > 80 ? e.slice(0, 77) + '...' : - e).entityify()) + '</p>'); - } - } - } - - if (data.implieds) { - s = []; - for (i = 0; i < data.implieds.length; i += 1) { - s[i] = '<code>' + data.implieds[i].name + '</code> <i>' + - data.implieds[i].line + '</i>'; - } - o.push('<p><i>Implied global:</i> ' + s.join(', ') + '</p>'); - } - - if (data.unused) { - s = []; - for (i = 0; i < data.unused.length; i += 1) { - s[i] = '<code><u>' + data.unused[i].name + '</u></code> <i>' + - data.unused[i].line + '</i> <code>' + - data.unused[i]['function'] + '</code>'; - } - o.push('<p><i>Unused variable:</i> ' + s.join(', ') + '</p>'); - } - if (data.json) { - o.push('<p>JSON: bad.</p>'); - } - o.push('</div>'); - } - - if (!option) { - - o.push('<br><div id=functions>'); - - if (data.urls) { - detail("URLs<br>", data.urls, '<br>'); - } - - if (data.json && !err) { - o.push('<p>JSON: good.</p>'); - } else if (data.globals) { - o.push('<div><i>Global</i> ' + - data.globals.sort().join(', ') + '</div>'); - } else { - o.push('<div><i>No new global variables introduced.</i></div>'); - } - - for (i = 0; i < data.functions.length; i += 1) { - f = data.functions[i]; - - o.push('<br><div class=function><i>' + f.line + '-' + - f.last + '</i> ' + (f.name || '') + '(' + - (f.param ? f.param.join(', ') : '') + ')</div>'); - detail('<big><b>Unused</b></big>', f.unused); - detail('Closure', f.closure); - detail('Variable', f['var']); - detail('Exception', f.exception); - detail('Outer', f.outer); - detail('Global', f.global); - detail('Label', f.label); - } - - if (data.member) { - a = Object.keys(data.member); - if (a.length) { - a = a.sort(); - m = '<br><pre id=members>/*members '; - l = 10; - for (i = 0; i < a.length; i += 1) { - k = a[i]; - n = k.name(); - if (l + n.length > 72) { - o.push(m + '<br>'); - m = ' '; - l = 1; - } - l += n.length + 2; - if (data.member[k] === 1) { - n = '<i>' + n + '</i>'; - } - if (i < a.length - 1) { - n += ', '; - } - m += n; - } - o.push(m + '<br>*/</pre>'); - } - o.push('</div>'); - } - } - return o.join(''); - }; - itself.jshint = itself; - - itself.edition = '2011-04-16'; - - return itself; - + } + return this; + }); + + prefix("function", function () { + var i = optionalidentifier(); + if (i) { + adjacent(token, nexttoken); + } else { + nonadjacent(token, nexttoken); + } + doFunction(i); + if (!option.loopfunc && funct["(loopage)"]) { + warning("Don't make functions within a loop."); + } + return this; + }); + + blockstmt("if", function () { + var t = nexttoken; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + expression(20); + if (nexttoken.id === "=") { + if (!option.boss) + warning("Assignment in conditional expression"); + advance("="); + expression(20); + } + advance(")", t); + nospace(prevtoken, token); + block(true, true); + if (nexttoken.id === "else") { + nonadjacent(token, nexttoken); + advance("else"); + if (nexttoken.id === "if" || nexttoken.id === "switch") { + statement(true); + } else { + block(true, true); + } + } + return this; + }); + + blockstmt("try", function () { + var b; + + function doCatch() { + var oldScope = scope; + var e; + + advance("catch"); + nonadjacent(token, nexttoken); + advance("("); + + scope = Object.create(oldScope); + + e = nexttoken.value; + if (nexttoken.type !== "(identifier)") { + e = null; + warning("Expected an identifier and instead saw '{a}'.", nexttoken, e); + } + + advance(); + advance(")"); + + funct = { + "(name)" : "(catch)", + "(line)" : nexttoken.line, + "(character)": nexttoken.character, + "(context)" : funct, + "(breakage)" : funct["(breakage)"], + "(loopage)" : funct["(loopage)"], + "(scope)" : scope, + "(statement)": false, + "(metrics)" : createMetrics(nexttoken), + "(catch)" : true, + "(tokens)" : {} + }; + + if (e) { + addlabel(e, "exception"); + } + + token.funct = funct; + functions.push(funct); + + block(false); + + scope = oldScope; + + funct["(last)"] = token.line; + funct["(lastcharacter)"] = token.character; + funct = funct["(context)"]; + } + + block(false); + + if (nexttoken.id === "catch") { + increaseComplexityCount(); + doCatch(); + b = true; + } + + if (nexttoken.id === "finally") { + advance("finally"); + block(false); + return; + } else if (!b) { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, "catch", nexttoken.value); + } + + return this; + }); + + blockstmt("while", function () { + var t = nexttoken; + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + expression(20); + if (nexttoken.id === "=") { + if (!option.boss) + warning("Assignment in conditional expression"); + advance("="); + expression(20); + } + advance(")", t); + nospace(prevtoken, token); + block(true, true); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + }).labelled = true; + + blockstmt("with", function () { + var t = nexttoken; + if (directive["use strict"]) { + error("'with' is not allowed in strict mode.", token); + } else if (!option.withstmt) { + warning("Don't use 'with'.", token); + } + + advance("("); + nonadjacent(this, t); + nospace(); + expression(0); + advance(")", t); + nospace(prevtoken, token); + block(true, true); + + return this; + }); + + blockstmt("switch", function () { + var t = nexttoken, + g = false; + funct["(breakage)"] += 1; + advance("("); + nonadjacent(this, t); + nospace(); + this.condition = expression(20); + advance(")", t); + nospace(prevtoken, token); + nonadjacent(token, nexttoken); + t = nexttoken; + advance("{"); + nonadjacent(token, nexttoken); + indent += option.indent; + this.cases = []; + for (;;) { + switch (nexttoken.id) { + case "case": + switch (funct["(verb)"]) { + case "break": + case "case": + case "continue": + case "return": + case "switch": + case "throw": + break; + default: + if (!ft.test(lines[nexttoken.line - 2])) { + warning( + "Expected a 'break' statement before 'case'.", + token); + } + } + indentation(-option.indent); + advance("case"); + this.cases.push(expression(20)); + increaseComplexityCount(); + g = true; + advance(":"); + funct["(verb)"] = "case"; + break; + case "default": + switch (funct["(verb)"]) { + case "break": + case "continue": + case "return": + case "throw": + break; + default: + if (!ft.test(lines[nexttoken.line - 2])) { + warning( + "Expected a 'break' statement before 'default'.", + token); + } + } + indentation(-option.indent); + advance("default"); + g = true; + advance(":"); + break; + case "}": + indent -= option.indent; + indentation(); + advance("}", t); + if (this.cases.length === 1 || this.condition.id === "true" || + this.condition.id === "false") { + if (!option.onecase) + warning("This 'switch' should be an 'if'.", this); + } + funct["(breakage)"] -= 1; + funct["(verb)"] = undefined; + return; + case "(end)": + error("Missing '{a}'.", nexttoken, "}"); + return; + default: + if (g) { + switch (token.id) { + case ",": + error("Each value should have its own case label."); + return; + case ":": + g = false; + statements(); + break; + default: + error("Missing ':' on a case clause.", token); + return; + } + } else { + if (token.id === ":") { + advance(":"); + error("Unexpected '{a}'.", token, ":"); + statements(); + } else { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, "case", nexttoken.value); + return; + } + } + } + } + }).labelled = true; + + stmt("debugger", function () { + if (!option.debug) { + warning("All 'debugger' statements should be removed."); + } + return this; + }).exps = true; + + (function () { + var x = stmt("do", function () { + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + + this.first = block(true); + advance("while"); + var t = nexttoken; + nonadjacent(token, t); + advance("("); + nospace(); + expression(20); + if (nexttoken.id === "=") { + if (!option.boss) + warning("Assignment in conditional expression"); + advance("="); + expression(20); + } + advance(")", t); + nospace(prevtoken, token); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + }); + x.labelled = true; + x.exps = true; + }()); + + blockstmt("for", function () { + var s, t = nexttoken; + funct["(breakage)"] += 1; + funct["(loopage)"] += 1; + increaseComplexityCount(); + advance("("); + nonadjacent(this, t); + nospace(); + if (peek(nexttoken.id === "var" ? 1 : 0).id === "in") { + if (nexttoken.id === "var") { + advance("var"); + varstatement.fud.call(varstatement, true); + } else { + switch (funct[nexttoken.value]) { + case "unused": + funct[nexttoken.value] = "var"; + break; + case "var": + break; + default: + warning("Bad for in variable '{a}'.", + nexttoken, nexttoken.value); + } + advance(); + } + advance("in"); + expression(20); + advance(")", t); + s = block(true, true); + if (option.forin && s && (s.length > 1 || typeof s[0] !== "object" || + s[0].value !== "if")) { + warning("The body of a for in should be wrapped in an if statement to filter " + + "unwanted properties from the prototype.", this); + } + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + } else { + if (nexttoken.id !== ";") { + if (nexttoken.id === "var") { + advance("var"); + varstatement.fud.call(varstatement); + } else { + for (;;) { + expression(0, "for"); + if (nexttoken.id !== ",") { + break; + } + comma(); + } + } + } + nolinebreak(token); + advance(";"); + if (nexttoken.id !== ";") { + expression(20); + if (nexttoken.id === "=") { + if (!option.boss) + warning("Assignment in conditional expression"); + advance("="); + expression(20); + } + } + nolinebreak(token); + advance(";"); + if (nexttoken.id === ";") { + error("Expected '{a}' and instead saw '{b}'.", + nexttoken, ")", ";"); + } + if (nexttoken.id !== ")") { + for (;;) { + expression(0, "for"); + if (nexttoken.id !== ",") { + break; + } + comma(); + } + } + advance(")", t); + nospace(prevtoken, token); + block(true, true); + funct["(breakage)"] -= 1; + funct["(loopage)"] -= 1; + return this; + } + }).labelled = true; + + + stmt("break", function () { + var v = nexttoken.value; + + if (funct["(breakage)"] === 0) + warning("Unexpected '{a}'.", nexttoken, this.value); + + if (!option.asi) + nolinebreak(this); + + if (nexttoken.id !== ";") { + if (token.line === nexttoken.line) { + if (funct[v] !== "label") { + warning("'{a}' is not a statement label.", nexttoken, v); + } else if (scope[v] !== funct) { + warning("'{a}' is out of scope.", nexttoken, v); + } + this.first = nexttoken; + advance(); + } + } + reachable("break"); + return this; + }).exps = true; + + + stmt("continue", function () { + var v = nexttoken.value; + + if (funct["(breakage)"] === 0) + warning("Unexpected '{a}'.", nexttoken, this.value); + + if (!option.asi) + nolinebreak(this); + + if (nexttoken.id !== ";") { + if (token.line === nexttoken.line) { + if (funct[v] !== "label") { + warning("'{a}' is not a statement label.", nexttoken, v); + } else if (scope[v] !== funct) { + warning("'{a}' is out of scope.", nexttoken, v); + } + this.first = nexttoken; + advance(); + } + } else if (!funct["(loopage)"]) { + warning("Unexpected '{a}'.", nexttoken, this.value); + } + reachable("continue"); + return this; + }).exps = true; + + + stmt("return", function () { + if (this.line === nexttoken.line) { + if (nexttoken.id === "(regexp)") + warning("Wrap the /regexp/ literal in parens to disambiguate the slash operator."); + + if (nexttoken.id !== ";" && !nexttoken.reach) { + nonadjacent(token, nexttoken); + if (peek().value === "=" && !option.boss) { + warningAt("Did you mean to return a conditional instead of an assignment?", + token.line, token.character + 1); + } + this.first = expression(0); + } + } else if (!option.asi) { + nolinebreak(this); // always warn (Line breaking error) + } + reachable("return"); + return this; + }).exps = true; + + + stmt("throw", function () { + nolinebreak(this); + nonadjacent(token, nexttoken); + this.first = expression(20); + reachable("throw"); + return this; + }).exps = true; + + reserve("class"); + reserve("const"); + reserve("enum"); + reserve("export"); + reserve("extends"); + reserve("import"); + reserve("super"); + + reserve("let"); + reserve("yield"); + reserve("implements"); + reserve("interface"); + reserve("package"); + reserve("private"); + reserve("protected"); + reserve("public"); + reserve("static"); + + function jsonValue() { + + function jsonObject() { + var o = {}, t = nexttoken; + advance("{"); + if (nexttoken.id !== "}") { + for (;;) { + if (nexttoken.id === "(end)") { + error("Missing '}' to match '{' from line {a}.", + nexttoken, t.line); + } else if (nexttoken.id === "}") { + warning("Unexpected comma.", token); + break; + } else if (nexttoken.id === ",") { + error("Unexpected comma.", nexttoken); + } else if (nexttoken.id !== "(string)") { + warning("Expected a string and instead saw {a}.", + nexttoken, nexttoken.value); + } + if (o[nexttoken.value] === true) { + warning("Duplicate key '{a}'.", + nexttoken, nexttoken.value); + } else if ((nexttoken.value === "__proto__" && + !option.proto) || (nexttoken.value === "__iterator__" && + !option.iterator)) { + warning("The '{a}' key may produce unexpected results.", + nexttoken, nexttoken.value); + } else { + o[nexttoken.value] = true; + } + advance(); + advance(":"); + jsonValue(); + if (nexttoken.id !== ",") { + break; + } + advance(","); + } + } + advance("}"); + } + + function jsonArray() { + var t = nexttoken; + advance("["); + if (nexttoken.id !== "]") { + for (;;) { + if (nexttoken.id === "(end)") { + error("Missing ']' to match '[' from line {a}.", + nexttoken, t.line); + } else if (nexttoken.id === "]") { + warning("Unexpected comma.", token); + break; + } else if (nexttoken.id === ",") { + error("Unexpected comma.", nexttoken); + } + jsonValue(); + if (nexttoken.id !== ",") { + break; + } + advance(","); + } + } + advance("]"); + } + + switch (nexttoken.id) { + case "{": + jsonObject(); + break; + case "[": + jsonArray(); + break; + case "true": + case "false": + case "null": + case "(number)": + case "(string)": + advance(); + break; + case "-": + advance("-"); + if (token.character !== nexttoken.from) { + warning("Unexpected space after '-'.", token); + } + adjacent(token, nexttoken); + advance("(number)"); + break; + default: + error("Expected a JSON value.", nexttoken); + } + } + var itself = function (s, o, g) { + var a, i, k, x; + var optionKeys; + var newOptionObj = {}; + + if (o && o.scope) { + JSHINT.scope = o.scope; + } else { + JSHINT.errors = []; + JSHINT.undefs = []; + JSHINT.internals = []; + JSHINT.blacklist = {}; + JSHINT.scope = "(main)"; + } + + predefined = Object.create(standard); + declared = Object.create(null); + combine(predefined, g || {}); + + if (o) { + a = o.predef; + if (a) { + if (!Array.isArray(a) && typeof a === "object") { + a = Object.keys(a); + } + a.forEach(function (item) { + var slice; + if (item[0] === "-") { + slice = item.slice(1); + JSHINT.blacklist[slice] = slice; + } else { + predefined[item] = true; + } + }); + } + + optionKeys = Object.keys(o); + for (x = 0; x < optionKeys.length; x++) { + newOptionObj[optionKeys[x]] = o[optionKeys[x]]; + + if (optionKeys[x] === "newcap" && o[optionKeys[x]] === false) + newOptionObj["(explicitNewcap)"] = true; + + if (optionKeys[x] === "indent") + newOptionObj.white = true; + } + } + + option = newOptionObj; + + option.indent = option.indent || 4; + option.maxerr = option.maxerr || 50; + + tab = ""; + for (i = 0; i < option.indent; i += 1) { + tab += " "; + } + indent = 1; + global = Object.create(predefined); + scope = global; + funct = { + "(global)": true, + "(name)": "(global)", + "(scope)": scope, + "(breakage)": 0, + "(loopage)": 0, + "(tokens)": {}, + "(metrics)": createMetrics(nexttoken) + }; + functions = [funct]; + urls = []; + stack = null; + member = {}; + membersOnly = null; + implied = {}; + inblock = false; + lookahead = []; + jsonmode = false; + warnings = 0; + lines = []; + unuseds = []; + + if (!isString(s) && !Array.isArray(s)) { + errorAt("Input is neither a string nor an array of strings.", 0); + return false; + } + + if (isString(s) && /^\s*$/g.test(s)) { + errorAt("Input is an empty string.", 0); + return false; + } + + if (s.length === 0) { + errorAt("Input is an empty array.", 0); + return false; + } + + lex.init(s); + + prereg = true; + directive = {}; + + prevtoken = token = nexttoken = syntax["(begin)"]; + for (var name in o) { + if (is_own(o, name)) { + checkOption(name, token); + } + } + + assume(); + combine(predefined, g || {}); + comma.first = true; + quotmark = undefined; + + try { + advance(); + switch (nexttoken.id) { + case "{": + case "[": + option.laxbreak = true; + jsonmode = true; + jsonValue(); + break; + default: + directives(); + if (directive["use strict"] && !option.globalstrict) { + warning("Use the function form of \"use strict\".", prevtoken); + } + + statements(); + } + advance((nexttoken && nexttoken.value !== ".") ? "(end)" : undefined); + + var markDefined = function (name, context) { + do { + if (typeof context[name] === "string") { + + if (context[name] === "unused") + context[name] = "var"; + else if (context[name] === "unction") + context[name] = "closure"; + + return true; + } + + context = context["(context)"]; + } while (context); + + return false; + }; + + var clearImplied = function (name, line) { + if (!implied[name]) + return; + + var newImplied = []; + for (var i = 0; i < implied[name].length; i += 1) { + if (implied[name][i] !== line) + newImplied.push(implied[name][i]); + } + + if (newImplied.length === 0) + delete implied[name]; + else + implied[name] = newImplied; + }; + + var warnUnused = function (name, token) { + var line = token.line; + var chr = token.character; + + if (option.unused) + warningAt("'{a}' is defined but never used.", line, chr, name); + + unuseds.push({ + name: name, + line: line, + character: chr + }); + }; + + var checkUnused = function (func, key) { + var type = func[key]; + var token = func["(tokens)"][key]; + + if (key.charAt(0) === "(") + return; + + if (type !== "unused" && type !== "unction") + return; + if (func["(params)"] && func["(params)"].indexOf(key) !== -1) + return; + + warnUnused(key, token); + }; + for (i = 0; i < JSHINT.undefs.length; i += 1) { + k = JSHINT.undefs[i].slice(0); + + if (markDefined(k[2].value, k[0])) { + clearImplied(k[2].value, k[2].line); + } else { + warning.apply(warning, k.slice(1)); + } + } + + functions.forEach(function (func) { + for (var key in func) { + if (is_own(func, key)) { + checkUnused(func, key); + } + } + + if (!func["(params)"]) + return; + + var params = func["(params)"].slice(); + var param = params.pop(); + var type; + + while (param) { + type = func[param]; + + if (param === "undefined") + return; + + if (type !== "unused" && type !== "unction") + return; + + warnUnused(param, func["(tokens)"][param]); + param = params.pop(); + } + }); + + for (var key in declared) { + if (is_own(declared, key) && !is_own(global, key)) { + warnUnused(key, declared[key]); + } + } + } catch (e) { + if (e) { + var nt = nexttoken || {}; + JSHINT.errors.push({ + raw : e.raw, + reason : e.message, + line : e.line || nt.line, + character : e.character || nt.from + }, null); + } + } + + if (JSHINT.scope === "(main)") { + o = o || {}; + + for (i = 0; i < JSHINT.internals.length; i += 1) { + k = JSHINT.internals[i]; + o.scope = k.elem; + itself(k.value, o, g); + } + } + + return JSHINT.errors.length === 0; + }; + itself.data = function () { + var data = { + functions: [], + options: option + }; + var implieds = []; + var members = []; + var fu, f, i, j, n, globals; + + if (itself.errors.length) { + data.errors = itself.errors; + } + + if (jsonmode) { + data.json = true; + } + + for (n in implied) { + if (is_own(implied, n)) { + implieds.push({ + name: n, + line: implied[n] + }); + } + } + + if (implieds.length > 0) { + data.implieds = implieds; + } + + if (urls.length > 0) { + data.urls = urls; + } + + globals = Object.keys(scope); + if (globals.length > 0) { + data.globals = globals; + } + + for (i = 1; i < functions.length; i += 1) { + f = functions[i]; + fu = {}; + + for (j = 0; j < functionicity.length; j += 1) { + fu[functionicity[j]] = []; + } + + for (j = 0; j < functionicity.length; j += 1) { + if (fu[functionicity[j]].length === 0) { + delete fu[functionicity[j]]; + } + } + + fu.name = f["(name)"]; + fu.param = f["(params)"]; + fu.line = f["(line)"]; + fu.character = f["(character)"]; + fu.last = f["(last)"]; + fu.lastcharacter = f["(lastcharacter)"]; + data.functions.push(fu); + } + + if (unuseds.length > 0) { + data.unused = unuseds; + } + + members = []; + for (n in member) { + if (typeof member[n] === "number") { + data.member = member; + break; + } + } + + return data; + }; + + itself.jshint = itself; + + return itself; }()); +if (typeof exports === "object" && exports) { + exports.JSHINT = JSHINT; +} -// Make JSHINT a Node module, if possible. -if (typeof exports == 'object' && exports) - exports.JSHINT = JSHINT; - -});/* -*- Mode: JS; tab-width: 4; indent-tabs-mode: nil; -*- - * vim: set sw=4 ts=4 et tw=78: - * ***** BEGIN LICENSE BLOCK ***** - * - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is the Narcissus JavaScript engine. - * - * The Initial Developer of the Original Code is - * Brendan Eich <brendan@mozilla.org>. - * Portions created by the Initial Developer are Copyright (C) 2004 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Tom Austin <taustin@ucsc.edu> - * Brendan Eich <brendan@mozilla.org> - * Shu-Yu Guo <shu@rfrn.org> - * Dave Herman <dherman@mozilla.com> - * Dimitris Vardoulakis <dimvar@ccs.neu.edu> - * Patrick Walton <pcwalton@mozilla.com> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -/* - * Narcissus - JS implemented in JS. - * - * Parser. - */ - -define('ace/narcissus/jsparse', ['require', 'exports', 'module' , 'ace/narcissus/jslex', 'ace/narcissus/jsdefs'], function(require, exports, module) { - - var lexer = require("./jslex"); - var definitions = require("./jsdefs"); - - const StringMap = definitions.StringMap; - const Stack = definitions.Stack; - - // Set constants in the local scope. - eval(definitions.consts); - - // Banned statement types by language version. - const blackLists = { 160: {}, 185: {}, harmony: {} }; - blackLists[160][IMPORT] = true; - blackLists[160][EXPORT] = true; - blackLists[160][LET] = true; - blackLists[160][MODULE] = true; - blackLists[160][YIELD] = true; - blackLists[185][IMPORT] = true; - blackLists[185][EXPORT] = true; - blackLists[185][MODULE] = true; - blackLists.harmony[WITH] = true; - - /* - * pushDestructuringVarDecls :: (node, hoisting node) -> void - * - * Recursively add all destructured declarations to varDecls. - */ - function pushDestructuringVarDecls(n, s) { - for (var i in n) { - var sub = n[i]; - if (sub.type === IDENTIFIER) { - s.varDecls.push(sub); - } else { - pushDestructuringVarDecls(sub, s); - } - } - } - - function StaticContext(parentScript, parentBlock, inModule, inFunction) { - this.parentScript = parentScript; - this.parentBlock = parentBlock || parentScript; - this.inModule = inModule || false; - this.inFunction = inFunction || false; - this.inForLoopInit = false; - this.topLevel = true; - this.allLabels = new Stack(); - this.currentLabels = new Stack(); - this.labeledTargets = new Stack(); - this.defaultLoopTarget = null; - this.defaultTarget = null; - this.blackList = blackLists[Narcissus.options.version]; - Narcissus.options.ecma3OnlyMode && (this.ecma3OnlyMode = true); - Narcissus.options.parenFreeMode && (this.parenFreeMode = true); - } - - StaticContext.prototype = { - ecma3OnlyMode: false, - parenFreeMode: false, - // non-destructive update via prototype extension - update: function(ext) { - var desc = {}; - for (var key in ext) { - desc[key] = { - value: ext[key], - writable: true, - enumerable: true, - configurable: true - } - } - return Object.create(this, desc); - }, - pushLabel: function(label) { - return this.update({ currentLabels: this.currentLabels.push(label), - allLabels: this.allLabels.push(label) }); - }, - pushTarget: function(target) { - var isDefaultLoopTarget = target.isLoop; - var isDefaultTarget = isDefaultLoopTarget || target.type === SWITCH; - - if (this.currentLabels.isEmpty()) { - if (isDefaultLoopTarget) this.update({ defaultLoopTarget: target }); - if (isDefaultTarget) this.update({ defaultTarget: target }); - return this; - } - - target.labels = new StringMap(); - this.currentLabels.forEach(function(label) { - target.labels.set(label, true); - }); - return this.update({ currentLabels: new Stack(), - labeledTargets: this.labeledTargets.push(target), - defaultLoopTarget: isDefaultLoopTarget - ? target - : this.defaultLoopTarget, - defaultTarget: isDefaultTarget - ? target - : this.defaultTarget }); - }, - nest: function() { - return this.topLevel ? this.update({ topLevel: false }) : this; - }, - allow: function(type) { - switch (type) { - case EXPORT: - if (!this.inModule || this.inFunction || !this.topLevel) - return false; - // FALL THROUGH - - case IMPORT: - return !this.inFunction && this.topLevel; - - case MODULE: - return !this.inFunction && this.topLevel; - - default: - return true; - } - } - }; - - /* - * Script :: (tokenizer, boolean, boolean) -> node - * - * Parses the toplevel and module/function bodies. - */ - function Script(t, inModule, inFunction) { - var n = new Node(t, scriptInit()); - Statements(t, new StaticContext(n, n, inModule, inFunction), n); - return n; - } - - // We extend Array slightly with a top-of-stack method. - definitions.defineProperty(Array.prototype, "top", - function() { - return this.length && this[this.length-1]; - }, false, false, true); - - /* - * Node :: (tokenizer, optional init object) -> node - */ - function Node(t, init) { - var token = t.token; - if (token) { - // If init.type exists it will override token.type. - this.type = token.type; - this.value = token.value; - this.lineno = token.lineno; - - // Start and end are file positions for error handling. - this.start = token.start; - this.end = token.end; - } else { - this.lineno = t.lineno; - } - - // Node uses a tokenizer for debugging (getSource, filename getter). - this.tokenizer = t; - this.children = []; - - for (var prop in init) - this[prop] = init[prop]; - } - - /* - * SyntheticNode :: (tokenizer, optional init object) -> node - */ - function SyntheticNode(t, init) { - // print("SYNTHETIC NODE"); - // if (init.type === COMMA) { - // print("SYNTHETIC COMMA"); - // print(init); - // } - this.tokenizer = t; - this.children = []; - for (var prop in init) - this[prop] = init[prop]; - this.synthetic = true; - } - - var Np = Node.prototype = SyntheticNode.prototype = {}; - Np.constructor = Node; - - const TO_SOURCE_SKIP = { - type: true, - value: true, - lineno: true, - start: true, - end: true, - tokenizer: true, - assignOp: true - }; - function unevalableConst(code) { - var token = definitions.tokens[code]; - var constName = definitions.opTypeNames.hasOwnProperty(token) - ? definitions.opTypeNames[token] - : token in definitions.keywords - ? token.toUpperCase() - : token; - return { toSource: function() { return constName } }; - } - Np.toSource = function toSource() { - var mock = {}; - var self = this; - mock.type = unevalableConst(this.type); - if ("value" in this) - mock.value = this.value; - if ("lineno" in this) - mock.lineno = this.lineno; - if ("start" in this) - mock.start = this.start; - if ("end" in this) - mock.end = this.end; - if (this.assignOp) - mock.assignOp = unevalableConst(this.assignOp); - for (var key in this) { - if (this.hasOwnProperty(key) && !(key in TO_SOURCE_SKIP)) - mock[key] = this[key]; - } - return mock.toSource(); - }; - - // Always use push to add operands to an expression, to update start and end. - Np.push = function (kid) { - // kid can be null e.g. [1, , 2]. - if (kid !== null) { - if (kid.start < this.start) - this.start = kid.start; - if (this.end < kid.end) - this.end = kid.end; - } - return this.children.push(kid); - } - - Node.indentLevel = 0; - - function tokenString(tt) { - var t = definitions.tokens[tt]; - return /^\W/.test(t) ? definitions.opTypeNames[t] : t.toUpperCase(); - } - - Np.toString = function () { - var a = []; - for (var i in this) { - if (this.hasOwnProperty(i) && i !== 'type' && i !== 'target') - a.push({id: i, value: this[i]}); - } - a.sort(function (a,b) { return (a.id < b.id) ? -1 : 1; }); - const INDENTATION = " "; - var n = ++Node.indentLevel; - var s = "{\n" + INDENTATION.repeat(n) + "type: " + tokenString(this.type); - for (i = 0; i < a.length; i++) - s += ",\n" + INDENTATION.repeat(n) + a[i].id + ": " + a[i].value; - n = --Node.indentLevel; - s += "\n" + INDENTATION.repeat(n) + "}"; - return s; - } - - Np.getSource = function () { - return this.tokenizer.source.slice(this.start, this.end); - }; - - /* - * Helper init objects for common nodes. - */ - - const LOOP_INIT = { isLoop: true }; - - function blockInit() { - return { type: BLOCK, varDecls: [] }; - } - - function scriptInit() { - return { type: SCRIPT, - funDecls: [], - varDecls: [], - modDefns: new StringMap(), - modAssns: new StringMap(), - modDecls: new StringMap(), - modLoads: new StringMap(), - impDecls: [], - expDecls: [], - exports: new StringMap(), - hasEmptyReturn: false, - hasReturnWithValue: false, - isGenerator: false }; - } - - definitions.defineGetter(Np, "filename", - function() { - return this.tokenizer.filename; - }); - - definitions.defineGetter(Np, "length", - function() { - throw new Error("Node.prototype.length is gone; " + - "use n.children.length instead"); - }); - - definitions.defineProperty(String.prototype, "repeat", - function(n) { - var s = "", t = this + s; - while (--n >= 0) - s += t; - return s; - }, false, false, true); - - function MaybeLeftParen(t, x) { - if (x.parenFreeMode) - return t.match(LEFT_PAREN) ? LEFT_PAREN : END; - return t.mustMatch(LEFT_PAREN).type; - } - - function MaybeRightParen(t, p) { - if (p === LEFT_PAREN) - t.mustMatch(RIGHT_PAREN); - } - - /* - * Statements :: (tokenizer, compiler context, node) -> void - * - * Parses a sequence of Statements. - */ - function Statements(t, x, n) { - try { - while (!t.done && t.peek(true) !== RIGHT_CURLY) - n.push(Statement(t, x)); - } catch (e) { - if (t.done) - t.unexpectedEOF = true; - throw e; - } - } - - function Block(t, x) { - t.mustMatch(LEFT_CURLY); - var n = new Node(t, blockInit()); - Statements(t, x.update({ parentBlock: n }).pushTarget(n), n); - t.mustMatch(RIGHT_CURLY); - return n; - } - - const DECLARED_FORM = 0, EXPRESSED_FORM = 1, STATEMENT_FORM = 2; - - /* - * Export :: (binding node, boolean) -> Export - * - * Static semantic representation of a module export. - */ - function Export(node, isDefinition) { - this.node = node; // the AST node declaring this individual export - this.isDefinition = isDefinition; // is the node an 'export'-annotated definition? - this.resolved = null; // resolved pointer to the target of this export - } - - /* - * registerExport :: (StringMap, EXPORT node) -> void - */ - function registerExport(exports, decl) { - function register(name, exp) { - if (exports.has(name)) - throw new SyntaxError("multiple exports of " + name); - exports.set(name, exp); - } - - switch (decl.type) { - case MODULE: - case FUNCTION: - register(decl.name, new Export(decl, true)); - break; - - case VAR: - for (var i = 0; i < decl.children.length; i++) - register(decl.children[i].name, new Export(decl.children[i], true)); - break; - - case LET: - case CONST: - throw new Error("NYI: " + definitions.tokens[decl.type]); - - case EXPORT: - for (var i = 0; i < decl.pathList.length; i++) { - var path = decl.pathList[i]; - switch (path.type) { - case OBJECT_INIT: - for (var j = 0; j < path.children.length; j++) { - // init :: IDENTIFIER | PROPERTY_INIT - var init = path.children[j]; - if (init.type === IDENTIFIER) - register(init.value, new Export(init, false)); - else - register(init.children[0].value, new Export(init.children[1], false)); - } - break; - - case DOT: - register(path.children[1].value, new Export(path, false)); - break; - - case IDENTIFIER: - register(path.value, new Export(path, false)); - break; - - default: - throw new Error("unexpected export path: " + definitions.tokens[path.type]); - } - } - break; - - default: - throw new Error("unexpected export decl: " + definitions.tokens[exp.type]); - } - } - - /* - * Module :: (node) -> Module - * - * Static semantic representation of a module. - */ - function Module(node) { - var exports = node.body.exports; - var modDefns = node.body.modDefns; - - var exportedModules = new StringMap(); - - exports.forEach(function(name, exp) { - var node = exp.node; - if (node.type === MODULE) { - exportedModules.set(name, node); - } else if (!exp.isDefinition && node.type === IDENTIFIER && modDefns.has(node.value)) { - var mod = modDefns.get(node.value); - exportedModules.set(name, mod); - } - }); - - this.node = node; - this.exports = exports; - this.exportedModules = exportedModules; - } - - /* - * Statement :: (tokenizer, compiler context) -> node - * - * Parses a Statement. - */ - function Statement(t, x) { - var i, label, n, n2, p, c, ss, tt = t.get(true), tt2, x2, x3; - - var comments = t.blockComments; - - if (x.blackList[tt]) - throw t.newSyntaxError(definitions.tokens[tt] + " statements only allowed in Harmony"); - if (!x.allow(tt)) - throw t.newSyntaxError(definitions.tokens[tt] + " statement in illegal context"); - - // Cases for statements ending in a right curly return early, avoiding the - // common semicolon insertion magic after this switch. - switch (tt) { - case IMPORT: - n = new Node(t); - n.pathList = ImportPathList(t, x); - x.parentScript.impDecls.push(n); - break; - - case EXPORT: - switch (t.peek()) { - case MODULE: - case FUNCTION: - case LET: - case VAR: - case CONST: - n = Statement(t, x); - n.blockComments = comments; - n.exported = true; - x.parentScript.expDecls.push(n); - registerExport(x.parentScript.exports, n); - return n; - - default: - n = new Node(t); - n.pathList = ExportPathList(t, x); - break; - } - x.parentScript.expDecls.push(n); - registerExport(x.parentScript.exports, n); - break; - - case MODULE: - n = new Node(t); - n.blockComments = comments; - t.mustMatch(IDENTIFIER); - label = t.token.value; - - if (t.match(LEFT_CURLY)) { - n.name = label; - n.body = Script(t, true, false); - n.module = new Module(n); - t.mustMatch(RIGHT_CURLY); - x.parentScript.modDefns.set(n.name, n); - return n; - } - - t.unget(); - ModuleVariables(t, x, n); - return n; - - case FUNCTION: - // DECLARED_FORM extends funDecls of x, STATEMENT_FORM doesn't. - return FunctionDefinition(t, x, true, x.topLevel ? DECLARED_FORM : STATEMENT_FORM, comments); - - case LEFT_CURLY: - n = new Node(t, blockInit()); - Statements(t, x.update({ parentBlock: n }).pushTarget(n).nest(), n); - t.mustMatch(RIGHT_CURLY); - return n; - - case IF: - n = new Node(t); - n.condition = HeadExpression(t, x); - x2 = x.pushTarget(n).nest(); - n.thenPart = Statement(t, x2); - n.elsePart = t.match(ELSE, true) ? Statement(t, x2) : null; - return n; - - case SWITCH: - // This allows CASEs after a DEFAULT, which is in the standard. - n = new Node(t, { cases: [], defaultIndex: -1 }); - n.discriminant = HeadExpression(t, x); - x2 = x.pushTarget(n).nest(); - t.mustMatch(LEFT_CURLY); - while ((tt = t.get()) !== RIGHT_CURLY) { - switch (tt) { - case DEFAULT: - if (n.defaultIndex >= 0) - throw t.newSyntaxError("More than one switch default"); - // FALL THROUGH - case CASE: - n2 = new Node(t); - if (tt === DEFAULT) - n.defaultIndex = n.cases.length; - else - n2.caseLabel = Expression(t, x2, COLON); - break; - - default: - throw t.newSyntaxError("Invalid switch case"); - } - t.mustMatch(COLON); - n2.statements = new Node(t, blockInit()); - while ((tt=t.peek(true)) !== CASE && tt !== DEFAULT && - tt !== RIGHT_CURLY) - n2.statements.push(Statement(t, x2)); - n.cases.push(n2); - } - return n; - - case FOR: - n = new Node(t, LOOP_INIT); - n.blockComments = comments; - if (t.match(IDENTIFIER)) { - if (t.token.value === "each") - n.isEach = true; - else - t.unget(); - } - if (!x.parenFreeMode) - t.mustMatch(LEFT_PAREN); - x2 = x.pushTarget(n).nest(); - x3 = x.update({ inForLoopInit: true }); - n2 = null; - if ((tt = t.peek(true)) !== SEMICOLON) { - if (tt === VAR || tt === CONST) { - t.get(); - n2 = Variables(t, x3); - } else if (tt === LET) { - t.get(); - if (t.peek() === LEFT_PAREN) { - n2 = LetBlock(t, x3, false); - } else { - // Let in for head, we need to add an implicit block - // around the rest of the for. - x3.parentBlock = n; - n.varDecls = []; - n2 = Variables(t, x3); - } - } else { - n2 = Expression(t, x3); - } - } - if (n2 && t.match(IN)) { - n.type = FOR_IN; - n.object = Expression(t, x3); - if (n2.type === VAR || n2.type === LET) { - c = n2.children; - - // Destructuring turns one decl into multiples, so either - // there must be only one destructuring or only one - // decl. - if (c.length !== 1 && n2.destructurings.length !== 1) { - throw new SyntaxError("Invalid for..in left-hand side", - t.filename, n2.lineno); - } - if (n2.destructurings.length > 0) { - n.iterator = n2.destructurings[0]; - } else { - n.iterator = c[0]; - } - n.varDecl = n2; - } else { - if (n2.type === ARRAY_INIT || n2.type === OBJECT_INIT) { - n2.destructuredNames = checkDestructuring(t, x3, n2); - } - n.iterator = n2; - } - } else { - x3.inForLoopInit = false; - n.setup = n2; - t.mustMatch(SEMICOLON); - if (n.isEach) - throw t.newSyntaxError("Invalid for each..in loop"); - n.condition = (t.peek(true) === SEMICOLON) - ? null - : Expression(t, x3); - t.mustMatch(SEMICOLON); - tt2 = t.peek(true); - n.update = (x.parenFreeMode - ? tt2 === LEFT_CURLY || definitions.isStatementStartCode[tt2] - : tt2 === RIGHT_PAREN) - ? null - : Expression(t, x3); - } - if (!x.parenFreeMode) - t.mustMatch(RIGHT_PAREN); - n.body = Statement(t, x2); - return n; - - case WHILE: - n = new Node(t, { isLoop: true }); - n.blockComments = comments; - n.condition = HeadExpression(t, x); - n.body = Statement(t, x.pushTarget(n).nest()); - return n; - - case DO: - n = new Node(t, { isLoop: true }); - n.blockComments = comments; - n.body = Statement(t, x.pushTarget(n).nest()); - t.mustMatch(WHILE); - n.condition = HeadExpression(t, x); - if (!x.ecmaStrictMode) { - // <script language="JavaScript"> (without version hints) may need - // automatic semicolon insertion without a newline after do-while. - // See http://bugzilla.mozilla.org/show_bug.cgi?id=238945. - t.match(SEMICOLON); - return n; - } - break; - - case BREAK: - case CONTINUE: - n = new Node(t); - n.blockComments = comments; - - // handle the |foo: break foo;| corner case - x2 = x.pushTarget(n); - - if (t.peekOnSameLine() === IDENTIFIER) { - t.get(); - n.label = t.token.value; - } - - if (n.label) { - n.target = x2.labeledTargets.find(function(target) { return target.labels.has(n.label) }); - } else if (tt === CONTINUE) { - n.target = x2.defaultLoopTarget; - } else { - n.target = x2.defaultTarget; - } - - if (!n.target) - throw t.newSyntaxError("Invalid " + ((tt === BREAK) ? "break" : "continue")); - if (!n.target.isLoop && tt === CONTINUE) - throw t.newSyntaxError("Invalid continue"); - - break; - - case TRY: - n = new Node(t, { catchClauses: [] }); - n.blockComments = comments; - n.tryBlock = Block(t, x); - while (t.match(CATCH)) { - n2 = new Node(t); - p = MaybeLeftParen(t, x); - switch (t.get()) { - case LEFT_BRACKET: - case LEFT_CURLY: - // Destructured catch identifiers. - t.unget(); - n2.varName = DestructuringExpression(t, x, true); - break; - case IDENTIFIER: - n2.varName = t.token.value; - break; - default: - throw t.newSyntaxError("missing identifier in catch"); - break; - } - if (t.match(IF)) { - if (x.ecma3OnlyMode) - throw t.newSyntaxError("Illegal catch guard"); - if (n.catchClauses.length && !n.catchClauses.top().guard) - throw t.newSyntaxError("Guarded catch after unguarded"); - n2.guard = Expression(t, x); - } - MaybeRightParen(t, p); - n2.block = Block(t, x); - n.catchClauses.push(n2); - } - if (t.match(FINALLY)) - n.finallyBlock = Block(t, x); - if (!n.catchClauses.length && !n.finallyBlock) - throw t.newSyntaxError("Invalid try statement"); - return n; - - case CATCH: - case FINALLY: - throw t.newSyntaxError(definitions.tokens[tt] + " without preceding try"); - - case THROW: - n = new Node(t); - n.exception = Expression(t, x); - break; - - case RETURN: - n = ReturnOrYield(t, x); - break; - - case WITH: - n = new Node(t); - n.blockComments = comments; - n.object = HeadExpression(t, x); - n.body = Statement(t, x.pushTarget(n).nest()); - return n; - - case VAR: - case CONST: - n = Variables(t, x); - break; - - case LET: - if (t.peek() === LEFT_PAREN) - n = LetBlock(t, x, true); - else - n = Variables(t, x); - break; - - case DEBUGGER: - n = new Node(t); - break; - - case NEWLINE: - case SEMICOLON: - n = new Node(t, { type: SEMICOLON }); - n.blockComments = comments; - n.expression = null; - return n; - - default: - if (tt === IDENTIFIER) { - tt = t.peek(); - // Labeled statement. - if (tt === COLON) { - label = t.token.value; - if (x.allLabels.has(label)) - throw t.newSyntaxError("Duplicate label"); - t.get(); - n = new Node(t, { type: LABEL, label: label }); - n.blockComments = comments; - n.statement = Statement(t, x.pushLabel(label).nest()); - n.target = (n.statement.type === LABEL) ? n.statement.target : n.statement; - return n; - } - } - - // Expression statement. - // We unget the current token to parse the expression as a whole. - n = new Node(t, { type: SEMICOLON }); - t.unget(); - n.blockComments = comments; - n.expression = Expression(t, x); - n.end = n.expression.end; - break; - } - - n.blockComments = comments; - MagicalSemicolon(t); - return n; - } - - /* - * MagicalSemicolon :: (tokenizer) -> void - */ - function MagicalSemicolon(t) { - var tt; - if (t.lineno === t.token.lineno) { - tt = t.peekOnSameLine(); - if (tt !== END && tt !== NEWLINE && tt !== SEMICOLON && tt !== RIGHT_CURLY) - throw t.newSyntaxError("missing ; before statement"); - } - t.match(SEMICOLON); - } - - /* - * ReturnOrYield :: (tokenizer, compiler context) -> (RETURN | YIELD) node - */ - function ReturnOrYield(t, x) { - var n, b, tt = t.token.type, tt2; - - var parentScript = x.parentScript; - - if (tt === RETURN) { - if (!x.inFunction) - throw t.newSyntaxError("Return not in function"); - } else /* if (tt === YIELD) */ { - if (!x.inFunction) - throw t.newSyntaxError("Yield not in function"); - parentScript.isGenerator = true; - } - n = new Node(t, { value: undefined }); - - tt2 = (tt === RETURN) ? t.peekOnSameLine(true) : t.peek(true); - if (tt2 !== END && tt2 !== NEWLINE && - tt2 !== SEMICOLON && tt2 !== RIGHT_CURLY - && (tt !== YIELD || - (tt2 !== tt && tt2 !== RIGHT_BRACKET && tt2 !== RIGHT_PAREN && - tt2 !== COLON && tt2 !== COMMA))) { - if (tt === RETURN) { - n.value = Expression(t, x); - parentScript.hasReturnWithValue = true; - } else { - n.value = AssignExpression(t, x); - } - } else if (tt === RETURN) { - parentScript.hasEmptyReturn = true; - } - - // Disallow return v; in generator. - if (parentScript.hasReturnWithValue && parentScript.isGenerator) - throw t.newSyntaxError("Generator returns a value"); - - return n; - } - - /* - * ModuleExpression :: (tokenizer, compiler context) -> (STRING | IDENTIFIER | DOT) node - */ - function ModuleExpression(t, x) { - return t.match(STRING) ? new Node(t) : QualifiedPath(t, x); - } - - /* - * ImportPathList :: (tokenizer, compiler context) -> Array[DOT node] - */ - function ImportPathList(t, x) { - var a = []; - do { - a.push(ImportPath(t, x)); - } while (t.match(COMMA)); - return a; - } - - /* - * ImportPath :: (tokenizer, compiler context) -> DOT node - */ - function ImportPath(t, x) { - var n = QualifiedPath(t, x); - if (!t.match(DOT)) { - if (n.type === IDENTIFIER) - throw t.newSyntaxError("cannot import local variable"); - return n; - } - - var n2 = new Node(t); - n2.push(n); - n2.push(ImportSpecifierSet(t, x)); - return n2; - } - - /* - * ExplicitSpecifierSet :: (tokenizer, compiler context, (tokenizer, compiler context) -> node) - * -> OBJECT_INIT node - */ - function ExplicitSpecifierSet(t, x, SpecifierRHS) { - var n, n2, id, tt; - - n = new Node(t, { type: OBJECT_INIT }); - t.mustMatch(LEFT_CURLY); - - if (!t.match(RIGHT_CURLY)) { - do { - id = Identifier(t, x); - if (t.match(COLON)) { - n2 = new Node(t, { type: PROPERTY_INIT }); - n2.push(id); - n2.push(SpecifierRHS(t, x)); - n.push(n2); - } else { - n.push(id); - } - } while (!t.match(RIGHT_CURLY) && t.mustMatch(COMMA)); - } - - return n; - } - - /* - * ImportSpecifierSet :: (tokenizer, compiler context) -> (IDENTIFIER | OBJECT_INIT) node - */ - function ImportSpecifierSet(t, x) { - return t.match(MUL) - ? new Node(t, { type: IDENTIFIER, name: "*" }) - : ExplicitSpecifierSet(t, x, Identifier); - } - - /* - * Identifier :: (tokenizer, compiler context) -> IDENTIFIER node - */ - function Identifier(t, x) { - t.mustMatch(IDENTIFIER); - return new Node(t, { type: IDENTIFIER }); - } - - /* - * IdentifierName :: (tokenizer) -> IDENTIFIER node - */ - function IdentifierName(t) { - if (t.match(IDENTIFIER)) - return new Node(t, { type: IDENTIFIER }); - t.get(); - if (t.token.value in definitions.keywords) - return new Node(t, { type: IDENTIFIER }); - throw t.newSyntaxError("missing IdentifierName"); - } - - /* - * QualifiedPath :: (tokenizer, compiler context) -> (IDENTIFIER | DOT) node - */ - function QualifiedPath(t, x) { - var n, n2; - - n = Identifier(t, x); - - while (t.match(DOT)) { - if (t.peek() !== IDENTIFIER) { - // Unget the '.' token, which isn't part of the QualifiedPath. - t.unget(); - break; - } - n2 = new Node(t); - n2.push(n); - n2.push(Identifier(t, x)); - n = n2; - } - - return n; - } - - /* - * ExportPath :: (tokenizer, compiler context) -> (IDENTIFIER | DOT | OBJECT_INIT) node - */ - function ExportPath(t, x) { - if (t.peek() === LEFT_CURLY) - return ExplicitSpecifierSet(t, x, QualifiedPath); - return QualifiedPath(t, x); - } - - /* - * ExportPathList :: (tokenizer, compiler context) - * -> Array[(IDENTIFIER | DOT | OBJECT_INIT) node] - */ - function ExportPathList(t, x) { - var a = []; - do { - a.push(ExportPath(t, x)); - } while (t.match(COMMA)); - return a; - } - - /* - * FunctionDefinition :: (tokenizer, compiler context, boolean, - * DECLARED_FORM or EXPRESSED_FORM or STATEMENT_FORM, - * [string] or null or undefined) - * -> node - */ - function FunctionDefinition(t, x, requireName, functionForm, comments) { - var tt; - var f = new Node(t, { params: [], paramComments: [] }); - if (typeof comment === "undefined") - comment = null; - f.blockComments = comments; - if (f.type !== FUNCTION) - f.type = (f.value === "get") ? GETTER : SETTER; - if (t.match(IDENTIFIER)) - f.name = t.token.value; - else if (requireName) - throw t.newSyntaxError("missing function identifier"); - - var inModule = x ? x.inModule : false; - var x2 = new StaticContext(null, null, inModule, true); - - t.mustMatch(LEFT_PAREN); - if (!t.match(RIGHT_PAREN)) { - do { - tt = t.get(); - f.paramComments.push(t.lastBlockComment()); - switch (tt) { - case LEFT_BRACKET: - case LEFT_CURLY: - // Destructured formal parameters. - t.unget(); - f.params.push(DestructuringExpression(t, x2)); - break; - case IDENTIFIER: - f.params.push(t.token.value); - break; - default: - throw t.newSyntaxError("missing formal parameter"); - break; - } - } while (t.match(COMMA)); - t.mustMatch(RIGHT_PAREN); - } - - // Do we have an expression closure or a normal body? - tt = t.get(); - if (tt !== LEFT_CURLY) - t.unget(); - - if (tt !== LEFT_CURLY) { - f.body = AssignExpression(t, x2); - if (f.body.isGenerator) - throw t.newSyntaxError("Generator returns a value"); - } else { - f.body = Script(t, inModule, true); - } - - if (tt === LEFT_CURLY) - t.mustMatch(RIGHT_CURLY); - - f.end = t.token.end; - f.functionForm = functionForm; - if (functionForm === DECLARED_FORM) - x.parentScript.funDecls.push(f); - return f; - } - - /* - * ModuleVariables :: (tokenizer, compiler context, MODULE node) -> void - * - * Parses a comma-separated list of module declarations (and maybe - * initializations). - */ - function ModuleVariables(t, x, n) { - var n1, n2; - do { - n1 = Identifier(t, x); - if (t.match(ASSIGN)) { - n2 = ModuleExpression(t, x); - n1.initializer = n2; - if (n2.type === STRING) - x.parentScript.modLoads.set(n1.value, n2.value); - else - x.parentScript.modAssns.set(n1.value, n1); - } - n.push(n1); - } while (t.match(COMMA)); - } - - /* - * Variables :: (tokenizer, compiler context) -> node - * - * Parses a comma-separated list of var declarations (and maybe - * initializations). - */ - function Variables(t, x, letBlock) { - var n, n2, ss, i, s, tt; - - tt = t.token.type; - switch (tt) { - case VAR: - case CONST: - s = x.parentScript; - break; - case LET: - s = x.parentBlock; - break; - case LEFT_PAREN: - tt = LET; - s = letBlock; - break; - } - - n = new Node(t, { type: tt, destructurings: [] }); - - do { - tt = t.get(); - if (tt === LEFT_BRACKET || tt === LEFT_CURLY) { - // Need to unget to parse the full destructured expression. - t.unget(); - - var dexp = DestructuringExpression(t, x, true); - - n2 = new Node(t, { type: IDENTIFIER, - name: dexp, - readOnly: n.type === CONST }); - n.push(n2); - pushDestructuringVarDecls(n2.name.destructuredNames, s); - n.destructurings.push({ exp: dexp, decl: n2 }); - - if (x.inForLoopInit && t.peek() === IN) { - continue; - } - - t.mustMatch(ASSIGN); - if (t.token.assignOp) - throw t.newSyntaxError("Invalid variable initialization"); - - n2.blockComment = t.lastBlockComment(); - n2.initializer = AssignExpression(t, x); - - continue; - } - - if (tt !== IDENTIFIER) - throw t.newSyntaxError("missing variable name"); - - n2 = new Node(t, { type: IDENTIFIER, - name: t.token.value, - readOnly: n.type === CONST }); - n.push(n2); - s.varDecls.push(n2); - - if (t.match(ASSIGN)) { - var comment = t.lastBlockComment(); - if (t.token.assignOp) - throw t.newSyntaxError("Invalid variable initialization"); - - n2.initializer = AssignExpression(t, x); - } else { - var comment = t.lastBlockComment(); - } - n2.blockComment = comment; - } while (t.match(COMMA)); - - return n; - } - - /* - * LetBlock :: (tokenizer, compiler context, boolean) -> node - * - * Does not handle let inside of for loop init. - */ - function LetBlock(t, x, isStatement) { - var n, n2; - - // t.token.type must be LET - n = new Node(t, { type: LET_BLOCK, varDecls: [] }); - t.mustMatch(LEFT_PAREN); - n.variables = Variables(t, x, n); - t.mustMatch(RIGHT_PAREN); - - if (isStatement && t.peek() !== LEFT_CURLY) { - /* - * If this is really an expression in let statement guise, then we - * need to wrap the LET_BLOCK node in a SEMICOLON node so that we pop - * the return value of the expression. - */ - n2 = new Node(t, { type: SEMICOLON, - expression: n }); - isStatement = false; - } - - if (isStatement) - n.block = Block(t, x); - else - n.expression = AssignExpression(t, x); - - return n; - } - - function checkDestructuring(t, x, n, simpleNamesOnly) { - if (n.type === ARRAY_COMP) - throw t.newSyntaxError("Invalid array comprehension left-hand side"); - if (n.type !== ARRAY_INIT && n.type !== OBJECT_INIT) - return; - - var lhss = {}; - var nn, n2, idx, sub, cc, c = n.children; - for (var i = 0, j = c.length; i < j; i++) { - if (!(nn = c[i])) - continue; - if (nn.type === PROPERTY_INIT) { - cc = nn.children; - sub = cc[1]; - idx = cc[0].value; - } else if (n.type === OBJECT_INIT) { - // Do we have destructuring shorthand {foo, bar}? - sub = nn; - idx = nn.value; - } else { - sub = nn; - idx = i; - } - - if (sub.type === ARRAY_INIT || sub.type === OBJECT_INIT) { - lhss[idx] = checkDestructuring(t, x, sub, simpleNamesOnly); - } else { - if (simpleNamesOnly && sub.type !== IDENTIFIER) { - // In declarations, lhs must be simple names - throw t.newSyntaxError("missing name in pattern"); - } - - lhss[idx] = sub; - } - } - - return lhss; - } - - function DestructuringExpression(t, x, simpleNamesOnly) { - var n = PrimaryExpression(t, x); - // Keep the list of lefthand sides for varDecls - n.destructuredNames = checkDestructuring(t, x, n, simpleNamesOnly); - return n; - } - - function GeneratorExpression(t, x, e) { - return new Node(t, { type: GENERATOR, - expression: e, - tail: ComprehensionTail(t, x) }); - } - - function ComprehensionTail(t, x) { - var body, n, n2, n3, p; - - // t.token.type must be FOR - body = new Node(t, { type: COMP_TAIL }); - - do { - // Comprehension tails are always for..in loops. - n = new Node(t, { type: FOR_IN, isLoop: true }); - if (t.match(IDENTIFIER)) { - // But sometimes they're for each..in. - if (t.token.value === "each") - n.isEach = true; - else - t.unget(); - } - p = MaybeLeftParen(t, x); - switch(t.get()) { - case LEFT_BRACKET: - case LEFT_CURLY: - t.unget(); - // Destructured left side of for in comprehension tails. - n.iterator = DestructuringExpression(t, x); - break; - - case IDENTIFIER: - n.iterator = n3 = new Node(t, { type: IDENTIFIER }); - n3.name = n3.value; - n.varDecl = n2 = new Node(t, { type: VAR }); - n2.push(n3); - x.parentScript.varDecls.push(n3); - // Don't add to varDecls since the semantics of comprehensions is - // such that the variables are in their own function when - // desugared. - break; - - default: - throw t.newSyntaxError("missing identifier"); - } - t.mustMatch(IN); - n.object = Expression(t, x); - MaybeRightParen(t, p); - body.push(n); - } while (t.match(FOR)); - - // Optional guard. - if (t.match(IF)) - body.guard = HeadExpression(t, x); - - return body; - } - - function HeadExpression(t, x) { - var p = MaybeLeftParen(t, x); - var n = ParenExpression(t, x); - MaybeRightParen(t, p); - if (p === END && !n.parenthesized) { - var tt = t.peek(); - if (tt !== LEFT_CURLY && !definitions.isStatementStartCode[tt]) - throw t.newSyntaxError("Unparenthesized head followed by unbraced body"); - } - return n; - } - - function ParenExpression(t, x) { - // Always accept the 'in' operator in a parenthesized expression, - // where it's unambiguous, even if we might be parsing the init of a - // for statement. - var n = Expression(t, x.update({ inForLoopInit: x.inForLoopInit && - (t.token.type === LEFT_PAREN) })); - - if (t.match(FOR)) { - if (n.type === YIELD && !n.parenthesized) - throw t.newSyntaxError("Yield expression must be parenthesized"); - if (n.type === COMMA && !n.parenthesized) - throw t.newSyntaxError("Generator expression must be parenthesized"); - n = GeneratorExpression(t, x, n); - } - - return n; - } - - /* - * Expression :: (tokenizer, compiler context) -> node - * - * Top-down expression parser matched against SpiderMonkey. - */ - function Expression(t, x) { - var n, n2; - - n = AssignExpression(t, x); - if (t.match(COMMA)) { - n2 = new Node(t, { type: COMMA }); - n2.push(n); - n = n2; - do { - n2 = n.children[n.children.length-1]; - if (n2.type === YIELD && !n2.parenthesized) - throw t.newSyntaxError("Yield expression must be parenthesized"); - n.push(AssignExpression(t, x)); - } while (t.match(COMMA)); - } - - return n; - } - - function AssignExpression(t, x) { - var n, lhs; - - // Have to treat yield like an operand because it could be the leftmost - // operand of the expression. - if (t.match(YIELD, true)) - return ReturnOrYield(t, x); - - n = new Node(t, { type: ASSIGN }); - lhs = ConditionalExpression(t, x); - - if (!t.match(ASSIGN)) { - return lhs; - } - - n.blockComment = t.lastBlockComment(); - - switch (lhs.type) { - case OBJECT_INIT: - case ARRAY_INIT: - lhs.destructuredNames = checkDestructuring(t, x, lhs); - // FALL THROUGH - case IDENTIFIER: case DOT: case INDEX: case CALL: - break; - default: - throw t.newSyntaxError("Bad left-hand side of assignment"); - break; - } - - n.assignOp = lhs.assignOp = t.token.assignOp; - n.push(lhs); - n.push(AssignExpression(t, x)); - - return n; - } - - function ConditionalExpression(t, x) { - var n, n2; - - n = OrExpression(t, x); - if (t.match(HOOK)) { - n2 = n; - n = new Node(t, { type: HOOK }); - n.push(n2); - /* - * Always accept the 'in' operator in the middle clause of a ternary, - * where it's unambiguous, even if we might be parsing the init of a - * for statement. - */ - n.push(AssignExpression(t, x.update({ inForLoopInit: false }))); - if (!t.match(COLON)) - throw t.newSyntaxError("missing : after ?"); - n.push(AssignExpression(t, x)); - } - - return n; - } - - function OrExpression(t, x) { - var n, n2; - - n = AndExpression(t, x); - while (t.match(OR)) { - n2 = new Node(t); - n2.push(n); - n2.push(AndExpression(t, x)); - n = n2; - } - - return n; - } - - function AndExpression(t, x) { - var n, n2; - - n = BitwiseOrExpression(t, x); - while (t.match(AND)) { - n2 = new Node(t); - n2.push(n); - n2.push(BitwiseOrExpression(t, x)); - n = n2; - } - - return n; - } - - function BitwiseOrExpression(t, x) { - var n, n2; - - n = BitwiseXorExpression(t, x); - while (t.match(BITWISE_OR)) { - n2 = new Node(t); - n2.push(n); - n2.push(BitwiseXorExpression(t, x)); - n = n2; - } - - return n; - } - - function BitwiseXorExpression(t, x) { - var n, n2; - - n = BitwiseAndExpression(t, x); - while (t.match(BITWISE_XOR)) { - n2 = new Node(t); - n2.push(n); - n2.push(BitwiseAndExpression(t, x)); - n = n2; - } - - return n; - } - - function BitwiseAndExpression(t, x) { - var n, n2; - - n = EqualityExpression(t, x); - while (t.match(BITWISE_AND)) { - n2 = new Node(t); - n2.push(n); - n2.push(EqualityExpression(t, x)); - n = n2; - } - - return n; - } - - function EqualityExpression(t, x) { - var n, n2; - - n = RelationalExpression(t, x); - while (t.match(EQ) || t.match(NE) || - t.match(STRICT_EQ) || t.match(STRICT_NE)) { - n2 = new Node(t); - n2.push(n); - n2.push(RelationalExpression(t, x)); - n = n2; - } - - return n; - } - - function RelationalExpression(t, x) { - var n, n2; - - /* - * Uses of the in operator in shiftExprs are always unambiguous, - * so unset the flag that prohibits recognizing it. - */ - var x2 = x.update({ inForLoopInit: false }); - n = ShiftExpression(t, x2); - while ((t.match(LT) || t.match(LE) || t.match(GE) || t.match(GT) || - (!x.inForLoopInit && t.match(IN)) || - t.match(INSTANCEOF))) { - n2 = new Node(t); - n2.push(n); - n2.push(ShiftExpression(t, x2)); - n = n2; - } - - return n; - } - - function ShiftExpression(t, x) { - var n, n2; - - n = AddExpression(t, x); - while (t.match(LSH) || t.match(RSH) || t.match(URSH)) { - n2 = new Node(t); - n2.push(n); - n2.push(AddExpression(t, x)); - n = n2; - } - - return n; - } - - function AddExpression(t, x) { - var n, n2; - - n = MultiplyExpression(t, x); - while (t.match(PLUS) || t.match(MINUS)) { - n2 = new Node(t); - n2.push(n); - n2.push(MultiplyExpression(t, x)); - n = n2; - } - - return n; - } - - function MultiplyExpression(t, x) { - var n, n2; - - n = UnaryExpression(t, x); - while (t.match(MUL) || t.match(DIV) || t.match(MOD)) { - n2 = new Node(t); - n2.push(n); - n2.push(UnaryExpression(t, x)); - n = n2; - } - - return n; - } - - function UnaryExpression(t, x) { - var n, n2, tt; - - switch (tt = t.get(true)) { - case DELETE: case VOID: case TYPEOF: - case NOT: case BITWISE_NOT: case PLUS: case MINUS: - if (tt === PLUS) - n = new Node(t, { type: UNARY_PLUS }); - else if (tt === MINUS) - n = new Node(t, { type: UNARY_MINUS }); - else - n = new Node(t); - n.push(UnaryExpression(t, x)); - break; - - case INCREMENT: - case DECREMENT: - // Prefix increment/decrement. - n = new Node(t); - n.push(MemberExpression(t, x, true)); - break; - - default: - t.unget(); - n = MemberExpression(t, x, true); - - // Don't look across a newline boundary for a postfix {in,de}crement. - if (t.tokens[(t.tokenIndex + t.lookahead - 1) & 3].lineno === - t.lineno) { - if (t.match(INCREMENT) || t.match(DECREMENT)) { - n2 = new Node(t, { postfix: true }); - n2.push(n); - n = n2; - } - } - break; - } - - return n; - } - - function MemberExpression(t, x, allowCallSyntax) { - var n, n2, name, tt; - - if (t.match(NEW)) { - n = new Node(t); - n.push(MemberExpression(t, x, false)); - if (t.match(LEFT_PAREN)) { - n.type = NEW_WITH_ARGS; - n.push(ArgumentList(t, x)); - } - } else { - n = PrimaryExpression(t, x); - } - - while ((tt = t.get()) !== END) { - switch (tt) { - case DOT: - n2 = new Node(t); - n2.push(n); - n2.push(IdentifierName(t)); - break; - - case LEFT_BRACKET: - n2 = new Node(t, { type: INDEX }); - n2.push(n); - n2.push(Expression(t, x)); - t.mustMatch(RIGHT_BRACKET); - break; - - case LEFT_PAREN: - if (allowCallSyntax) { - n2 = new Node(t, { type: CALL }); - n2.push(n); - n2.push(ArgumentList(t, x)); - break; - } - - // FALL THROUGH - default: - t.unget(); - return n; - } - - n = n2; - } - - return n; - } - - function ArgumentList(t, x) { - var n, n2; - - n = new Node(t, { type: LIST }); - if (t.match(RIGHT_PAREN, true)) - return n; - do { - n2 = AssignExpression(t, x); - if (n2.type === YIELD && !n2.parenthesized && t.peek() === COMMA) - throw t.newSyntaxError("Yield expression must be parenthesized"); - if (t.match(FOR)) { - n2 = GeneratorExpression(t, x, n2); - if (n.children.length > 1 || t.peek(true) === COMMA) - throw t.newSyntaxError("Generator expression must be parenthesized"); - } - n.push(n2); - } while (t.match(COMMA)); - t.mustMatch(RIGHT_PAREN); - - return n; - } - - function PrimaryExpression(t, x) { - var n, n2, tt = t.get(true); - - switch (tt) { - case FUNCTION: - n = FunctionDefinition(t, x, false, EXPRESSED_FORM); - break; - - case LEFT_BRACKET: - n = new Node(t, { type: ARRAY_INIT }); - while ((tt = t.peek(true)) !== RIGHT_BRACKET) { - if (tt === COMMA) { - t.get(); - n.push(null); - continue; - } - n.push(AssignExpression(t, x)); - if (tt !== COMMA && !t.match(COMMA)) - break; - } - - // If we matched exactly one element and got a FOR, we have an - // array comprehension. - if (n.children.length === 1 && t.match(FOR)) { - n2 = new Node(t, { type: ARRAY_COMP, - expression: n.children[0], - tail: ComprehensionTail(t, x) }); - n = n2; - } - t.mustMatch(RIGHT_BRACKET); - break; - - case LEFT_CURLY: - var id, fd; - n = new Node(t, { type: OBJECT_INIT }); - - object_init: - if (!t.match(RIGHT_CURLY)) { - do { - tt = t.get(); - if ((t.token.value === "get" || t.token.value === "set") && - t.peek() === IDENTIFIER) { - if (x.ecma3OnlyMode) - throw t.newSyntaxError("Illegal property accessor"); - n.push(FunctionDefinition(t, x, true, EXPRESSED_FORM)); - } else { - var comments = t.blockComments; - switch (tt) { - case IDENTIFIER: case NUMBER: case STRING: - id = new Node(t, { type: IDENTIFIER }); - break; - case RIGHT_CURLY: - if (x.ecma3OnlyMode) - throw t.newSyntaxError("Illegal trailing ,"); - break object_init; - default: - if (t.token.value in definitions.keywords) { - id = new Node(t, { type: IDENTIFIER }); - break; - } - throw t.newSyntaxError("Invalid property name"); - } - if (t.match(COLON)) { - n2 = new Node(t, { type: PROPERTY_INIT }); - n2.push(id); - n2.push(AssignExpression(t, x)); - n2.blockComments = comments; - n.push(n2); - } else { - // Support, e.g., |var {x, y} = o| as destructuring shorthand - // for |var {x: x, y: y} = o|, per proposed JS2/ES4 for JS1.8. - if (t.peek() !== COMMA && t.peek() !== RIGHT_CURLY) - throw t.newSyntaxError("missing : after property"); - n.push(id); - } - } - } while (t.match(COMMA)); - t.mustMatch(RIGHT_CURLY); - } - break; - - case LEFT_PAREN: - n = ParenExpression(t, x); - t.mustMatch(RIGHT_PAREN); - n.parenthesized = true; - break; - - case LET: - n = LetBlock(t, x, false); - break; - - case NULL: case THIS: case TRUE: case FALSE: - case IDENTIFIER: case NUMBER: case STRING: case REGEXP: - n = new Node(t); - break; - - default: - throw t.newSyntaxError("missing operand"); - break; - } - - return n; - } - - /* - * parse :: (source, filename, line number) -> node - */ - function parse(s, f, l) { - var t = new lexer.Tokenizer(s, f, l); - var n = Script(t, false, false); - if (!t.done) - throw t.newSyntaxError("Syntax error"); - - return n; - } - - /* - * parseStdin :: (source, {line number}, string, (string) -> boolean) -> program node - */ - function parseStdin(s, ln, prefix, isCommand) { - // the special .begin command is only recognized at the beginning - if (s.match(/^[\s]*\.begin[\s]*$/)) { - ++ln.value; - return parseMultiline(ln, prefix); - } - - // commands at the beginning are treated as the entire input - if (isCommand(s.trim())) - s = ""; - - for (;;) { - try { - var t = new lexer.Tokenizer(s, "stdin", ln.value); - var n = Script(t, false, false); - ln.value = t.lineno; - return n; - } catch (e) { - if (!t.unexpectedEOF) - throw e; - - // commands in the middle are not treated as part of the input - var more; - do { - if (prefix) - putstr(prefix); - more = readline(); - if (!more) - throw e; - } while (isCommand(more.trim())); - - s += "\n" + more; - } - } - } - - /* - * parseMultiline :: ({line number}, string | null) -> program node - */ - function parseMultiline(ln, prefix) { - var s = ""; - for (;;) { - if (prefix) - putstr(prefix); - var more = readline(); - if (more === null) - return null; - // the only command recognized in multiline mode is .end - if (more.match(/^[\s]*\.end[\s]*$/)) - break; - s += "\n" + more; - } - var t = new lexer.Tokenizer(s, "stdin", ln.value); - var n = Script(t, false, false); - ln.value = t.lineno; - return n; - } - - module.exports = { - parse: parse, - parseStdin: parseStdin, - Node: Node, - SyntheticNode: SyntheticNode, - DECLARED_FORM: DECLARED_FORM, - EXPRESSED_FORM: EXPRESSED_FORM, - STATEMENT_FORM: STATEMENT_FORM, - Tokenizer: lexer.Tokenizer, - FunctionDefinition: FunctionDefinition, - Module: Module, - Export: Export - }; - -});/* vim: set sw=4 ts=4 et tw=78: */ -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is the Narcissus JavaScript engine. - * - * The Initial Developer of the Original Code is - * Brendan Eich <brendan@mozilla.org>. - * Portions created by the Initial Developer are Copyright (C) 2004 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Tom Austin <taustin@ucsc.edu> - * Brendan Eich <brendan@mozilla.org> - * Shu-Yu Guo <shu@rfrn.org> - * Dave Herman <dherman@mozilla.com> - * Dimitris Vardoulakis <dimvar@ccs.neu.edu> - * Patrick Walton <pcwalton@mozilla.com> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -/* - * Narcissus - JS implemented in JS. - * - * Lexical scanner. - */ - - define('ace/narcissus/jslex', ['require', 'exports', 'module' , 'ace/narcissus/jsdefs'], function(require, exports, module) { - - var definitions = require("./jsdefs"); - - // Set constants in the local scope. - eval(definitions.consts); - - // Banned keywords by language version - const blackLists = { 160: {}, 185: {}, harmony: {} }; - blackLists[160][LET] = true; - blackLists[160][MODULE] = true; - blackLists[160][YIELD] = true; - blackLists[185][MODULE] = true; - - // Build up a trie of operator tokens. - var opTokens = {}; - for (var op in definitions.opTypeNames) { - if (op === '\n' || op === '.') - continue; - - var node = opTokens; - for (var i = 0; i < op.length; i++) { - var ch = op[i]; - if (!(ch in node)) - node[ch] = {}; - node = node[ch]; - node.op = op; - } - } - - /* - * Tokenizer :: (source, filename, line number) -> Tokenizer - */ - function Tokenizer(s, f, l) { - this.cursor = 0; - this.source = String(s); - this.tokens = []; - this.tokenIndex = 0; - this.lookahead = 0; - this.scanNewlines = false; - this.unexpectedEOF = false; - this.filename = f || ""; - this.lineno = l || 1; - this.blackList = blackLists[Narcissus.options.version]; - this.blockComments = null; - } - - Tokenizer.prototype = { - get done() { - // We need to set scanOperand to true here because the first thing - // might be a regexp. - return this.peek(true) === END; - }, - - get token() { - return this.tokens[this.tokenIndex]; - }, - - match: function (tt, scanOperand) { - return this.get(scanOperand) === tt || this.unget(); - }, - - mustMatch: function (tt) { - if (!this.match(tt)) { - throw this.newSyntaxError("Missing " + - definitions.tokens[tt].toLowerCase()); - } - return this.token; - }, - - peek: function (scanOperand) { - var tt, next; - if (this.lookahead) { - next = this.tokens[(this.tokenIndex + this.lookahead) & 3]; - tt = (this.scanNewlines && next.lineno !== this.lineno) - ? NEWLINE - : next.type; - } else { - tt = this.get(scanOperand); - this.unget(); - } - return tt; - }, - - peekOnSameLine: function (scanOperand) { - this.scanNewlines = true; - var tt = this.peek(scanOperand); - this.scanNewlines = false; - return tt; - }, - - lastBlockComment: function() { - var length = this.blockComments.length; - return length ? this.blockComments[length - 1] : null; - }, - - // Eat comments and whitespace. - skip: function () { - var input = this.source; - this.blockComments = []; - for (;;) { - var ch = input[this.cursor++]; - var next = input[this.cursor]; - // handle \r, \r\n and (always preferable) \n - if (ch === '\r') { - // if the next character is \n, we don't care about this at all - if (next === '\n') continue; - - // otherwise, we want to consider this as a newline - ch = '\n'; - } - - if (ch === '\n' && !this.scanNewlines) { - this.lineno++; - } else if (ch === '/' && next === '*') { - var commentStart = ++this.cursor; - for (;;) { - ch = input[this.cursor++]; - if (ch === undefined) - throw this.newSyntaxError("Unterminated comment"); - - if (ch === '*') { - next = input[this.cursor]; - if (next === '/') { - var commentEnd = this.cursor - 1; - this.cursor++; - break; - } - } else if (ch === '\n') { - this.lineno++; - } - } - this.blockComments.push(input.substring(commentStart, commentEnd)); - } else if (ch === '/' && next === '/') { - this.cursor++; - for (;;) { - ch = input[this.cursor++]; - next = input[this.cursor]; - if (ch === undefined) - return; - - if (ch === '\r') { - // check for \r\n - if (next !== '\n') ch = '\n'; - } - - if (ch === '\n') { - if (this.scanNewlines) { - this.cursor--; - } else { - this.lineno++; - } - break; - } - } - } else if (!(ch in definitions.whitespace)) { - this.cursor--; - return; - } - } - }, - - // Lex the exponential part of a number, if present. Return true iff an - // exponential part was found. - lexExponent: function() { - var input = this.source; - var next = input[this.cursor]; - if (next === 'e' || next === 'E') { - this.cursor++; - ch = input[this.cursor++]; - if (ch === '+' || ch === '-') - ch = input[this.cursor++]; - - if (ch < '0' || ch > '9') - throw this.newSyntaxError("Missing exponent"); - - do { - ch = input[this.cursor++]; - } while (ch >= '0' && ch <= '9'); - this.cursor--; - - return true; - } - - return false; - }, - - lexZeroNumber: function (ch) { - var token = this.token, input = this.source; - token.type = NUMBER; - - ch = input[this.cursor++]; - if (ch === '.') { - do { - ch = input[this.cursor++]; - } while (ch >= '0' && ch <= '9'); - this.cursor--; - - this.lexExponent(); - token.value = parseFloat(token.start, this.cursor); - } else if (ch === 'x' || ch === 'X') { - do { - ch = input[this.cursor++]; - } while ((ch >= '0' && ch <= '9') || (ch >= 'a' && ch <= 'f') || - (ch >= 'A' && ch <= 'F')); - this.cursor--; - - token.value = parseInt(input.substring(token.start, this.cursor)); - } else if (ch >= '0' && ch <= '7') { - do { - ch = input[this.cursor++]; - } while (ch >= '0' && ch <= '7'); - this.cursor--; - - token.value = parseInt(input.substring(token.start, this.cursor)); - } else { - this.cursor--; - this.lexExponent(); // 0E1, &c. - token.value = 0; - } - }, - - lexNumber: function (ch) { - var token = this.token, input = this.source; - token.type = NUMBER; - - var floating = false; - do { - ch = input[this.cursor++]; - if (ch === '.' && !floating) { - floating = true; - ch = input[this.cursor++]; - } - } while (ch >= '0' && ch <= '9'); - - this.cursor--; - - var exponent = this.lexExponent(); - floating = floating || exponent; - - var str = input.substring(token.start, this.cursor); - token.value = floating ? parseFloat(str) : parseInt(str); - }, - - lexDot: function (ch) { - var token = this.token, input = this.source; - var next = input[this.cursor]; - if (next >= '0' && next <= '9') { - do { - ch = input[this.cursor++]; - } while (ch >= '0' && ch <= '9'); - this.cursor--; - - this.lexExponent(); - - token.type = NUMBER; - token.value = parseFloat(token.start, this.cursor); - } else { - token.type = DOT; - token.assignOp = null; - token.value = '.'; - } - }, - - lexString: function (ch) { - var token = this.token, input = this.source; - token.type = STRING; - - var hasEscapes = false; - var delim = ch; - if (input.length <= this.cursor) - throw this.newSyntaxError("Unterminated string literal"); - while ((ch = input[this.cursor++]) !== delim) { - if (this.cursor == input.length) - throw this.newSyntaxError("Unterminated string literal"); - if (ch === '\\') { - hasEscapes = true; - if (++this.cursor == input.length) - throw this.newSyntaxError("Unterminated string literal"); - } - } - - token.value = hasEscapes - ? eval(input.substring(token.start, this.cursor)) - : input.substring(token.start + 1, this.cursor - 1); - }, - - lexRegExp: function (ch) { - var token = this.token, input = this.source; - token.type = REGEXP; - - do { - ch = input[this.cursor++]; - if (ch === '\\') { - this.cursor++; - } else if (ch === '[') { - do { - if (ch === undefined) - throw this.newSyntaxError("Unterminated character class"); - - if (ch === '\\') - this.cursor++; - - ch = input[this.cursor++]; - } while (ch !== ']'); - } else if (ch === undefined) { - throw this.newSyntaxError("Unterminated regex"); - } - } while (ch !== '/'); - - do { - ch = input[this.cursor++]; - } while (ch >= 'a' && ch <= 'z'); - - this.cursor--; - - token.value = eval(input.substring(token.start, this.cursor)); - }, - - lexOp: function (ch) { - var token = this.token, input = this.source; - - // A bit ugly, but it seems wasteful to write a trie lookup routine - // for only 3 characters... - var node = opTokens[ch]; - var next = input[this.cursor]; - if (next in node) { - node = node[next]; - this.cursor++; - next = input[this.cursor]; - if (next in node) { - node = node[next]; - this.cursor++; - next = input[this.cursor]; - } - } - - var op = node.op; - if (definitions.assignOps[op] && input[this.cursor] === '=') { - this.cursor++; - token.type = ASSIGN; - token.assignOp = definitions.tokenIds[definitions.opTypeNames[op]]; - op += '='; - } else { - token.type = definitions.tokenIds[definitions.opTypeNames[op]]; - token.assignOp = null; - } - - token.value = op; - }, - - // FIXME: Unicode escape sequences - lexIdent: function (ch) { - var token = this.token; - var id = ch; - - while ((ch = this.getValidIdentifierChar(false)) !== null) { - id += ch; - } - - token.type = definitions.keywords[id] || IDENTIFIER; - if (token.type in this.blackList) { - // banned keyword, this is an identifier - token.type = IDENTIFIER; - } - token.value = id; - }, - - /* - * Tokenizer.get :: void -> token type - * - * Consume input *only* if there is no lookahead. - * Dispatch to the appropriate lexing function depending on the input. - */ - get: function (scanOperand) { - var token; - while (this.lookahead) { - --this.lookahead; - this.tokenIndex = (this.tokenIndex + 1) & 3; - token = this.tokens[this.tokenIndex]; - if (token.type !== NEWLINE || this.scanNewlines) - return token.type; - } - - this.skip(); - - this.tokenIndex = (this.tokenIndex + 1) & 3; - token = this.tokens[this.tokenIndex]; - if (!token) - this.tokens[this.tokenIndex] = token = {}; - - var input = this.source; - if (this.cursor >= input.length) - return token.type = END; - - token.start = this.cursor; - token.lineno = this.lineno; - - var ich = this.getValidIdentifierChar(true); - var ch = (ich === null) ? input[this.cursor++] : null; - if (ich !== null) { - this.lexIdent(ich); - } else if (scanOperand && ch === '/') { - this.lexRegExp(ch); - } else if (ch in opTokens) { - this.lexOp(ch); - } else if (ch === '.') { - this.lexDot(ch); - } else if (ch >= '1' && ch <= '9') { - this.lexNumber(ch); - } else if (ch === '0') { - this.lexZeroNumber(ch); - } else if (ch === '"' || ch === "'") { - this.lexString(ch); - } else if (this.scanNewlines && (ch === '\n' || ch === '\r')) { - // if this was a \r, look for \r\n - if (ch === '\r' && input[this.cursor] === '\n') this.cursor++; - token.type = NEWLINE; - token.value = '\n'; - this.lineno++; - } else { - throw this.newSyntaxError("Illegal token"); - } - - token.end = this.cursor; - return token.type; - }, - - /* - * Tokenizer.unget :: void -> undefined - * - * Match depends on unget returning undefined. - */ - unget: function () { - if (++this.lookahead === 4) throw "PANIC: too much lookahead!"; - this.tokenIndex = (this.tokenIndex - 1) & 3; - }, - - newSyntaxError: function (m) { - m = (this.filename ? this.filename + ":" : "") + this.lineno + ": " + m; - var e = new SyntaxError(m, this.filename, this.lineno); - e.source = this.source; - e.cursor = this.lookahead - ? this.tokens[(this.tokenIndex + this.lookahead) & 3].start - : this.cursor; - return e; - }, - - /* Gets a single valid identifier char from the input stream, or null - * if there is none. - * Since JavaScript provides no convenient way to determine if a - * character is in a particular Unicode category, we use - * metacircularity to accomplish this (oh yeaaaah!) */ - getValidIdentifierChar: function(first) { - var input = this.source; - if (this.cursor >= input.length) return null; - var ch = input[this.cursor]; - - // first check for \u escapes - if (ch === '\\' && input[this.cursor+1] === 'u') { - // get the character value - try { - ch = String.fromCharCode(parseInt( - input.substring(this.cursor + 2, this.cursor + 6), - 16)); - } catch (ex) { - return null; - } - this.cursor += 5; - } - - // check directly for ASCII - if (ch <= "\u007F") { - if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || ch === '$' || ch === '_' || - (!first && (ch >= '0' && ch <= '9'))) { - this.cursor++; - return ch; - } - return null; - } - - // create an object to test this in - var x = {}; - x["x"+ch] = true; - x[ch] = true; - - // then use eval to determine if it's a valid character - var valid = false; - try { - valid = (Function("x", "return (x." + (first?"":"x") + ch + ");")(x) === true); - } catch (ex) {} - if (valid) this.cursor++; - return (valid ? ch : null); - }, - }; - - - module.exports = { Tokenizer: Tokenizer }; - -}); -/* vim: set sw=4 ts=4 et tw=78: */ -/* ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0/LGPL 2.1 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is the Narcissus JavaScript engine. - * - * The Initial Developer of the Original Code is - * Brendan Eich <brendan@mozilla.org>. - * Portions created by the Initial Developer are Copyright (C) 2004 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Tom Austin <taustin@ucsc.edu> - * Brendan Eich <brendan@mozilla.org> - * Shu-Yu Guo <shu@rfrn.org> - * Dave Herman <dherman@mozilla.com> - * Dimitris Vardoulakis <dimvar@ccs.neu.edu> - * Patrick Walton <pcwalton@mozilla.com> - * - * Alternatively, the contents of this file may be used under the terms of - * either the GNU General Public License Version 2 or later (the "GPL"), or - * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), - * in which case the provisions of the GPL or the LGPL are applicable instead - * of those above. If you wish to allow use of your version of this file only - * under the terms of either the GPL or the LGPL, and not to allow others to - * use your version of this file under the terms of the MPL, indicate your - * decision by deleting the provisions above and replace them with the notice - * and other provisions required by the GPL or the LGPL. If you do not delete - * the provisions above, a recipient may use your version of this file under - * the terms of any one of the MPL, the GPL or the LGPL. - * - * ***** END LICENSE BLOCK ***** */ - -/* - * Narcissus - JS implemented in JS. - * - * Well-known constants and lookup tables. Many consts are generated from the - * tokens table via eval to minimize redundancy, so consumers must be compiled - * separately to take advantage of the simple switch-case constant propagation - * done by SpiderMonkey. - */ - -define('ace/narcissus/jsdefs', ['require', 'exports', 'module' ], function(require, exports, module) { - - var narcissus = { - options: { - version: 185, - // Global variables to hide from the interpreter - hiddenHostGlobals: { Narcissus: true }, - // Desugar SpiderMonkey language extensions? - desugarExtensions: false - }, - hostSupportsEvalConst: (function() { - try { - return eval("(function(s) { eval(s); return x })('const x = true;')"); - } catch (e) { - return false; - } - })(), - hostGlobal: this - }; - Narcissus = narcissus; - - var tokens = [ - // End of source. - "END", - - // Operators and punctuators. Some pair-wise order matters, e.g. (+, -) - // and (UNARY_PLUS, UNARY_MINUS). - "\n", ";", - ",", - "=", - "?", ":", "CONDITIONAL", - "||", - "&&", - "|", - "^", - "&", - "==", "!=", "===", "!==", - "<", "<=", ">=", ">", - "<<", ">>", ">>>", - "+", "-", - "*", "/", "%", - "!", "~", "UNARY_PLUS", "UNARY_MINUS", - "++", "--", - ".", - "[", "]", - "{", "}", - "(", ")", - - // Nonterminal tree node type codes. - "SCRIPT", "BLOCK", "LABEL", "FOR_IN", "CALL", "NEW_WITH_ARGS", "INDEX", - "ARRAY_INIT", "OBJECT_INIT", "PROPERTY_INIT", "GETTER", "SETTER", - "GROUP", "LIST", "LET_BLOCK", "ARRAY_COMP", "GENERATOR", "COMP_TAIL", - - // Terminals. - "IDENTIFIER", "NUMBER", "STRING", "REGEXP", - - // Keywords. - "break", - "case", "catch", "const", "continue", - "debugger", "default", "delete", "do", - "else", "export", - "false", "finally", "for", "function", - "if", "import", "in", "instanceof", - "let", "module", - "new", "null", - "return", - "switch", - "this", "throw", "true", "try", "typeof", - "var", "void", - "yield", - "while", "with", - ]; - - var statementStartTokens = [ - "break", - "const", "continue", - "debugger", "do", - "for", - "if", - "return", - "switch", - "throw", "try", - "var", - "yield", - "while", "with", - ]; - - // Whitespace characters (see ECMA-262 7.2) - var whitespaceChars = [ - // normal whitespace: - "\u0009", "\u000B", "\u000C", "\u0020", "\u00A0", "\uFEFF", - - // high-Unicode whitespace: - "\u1680", "\u180E", - "\u2000", "\u2001", "\u2002", "\u2003", "\u2004", "\u2005", "\u2006", - "\u2007", "\u2008", "\u2009", "\u200A", - "\u202F", "\u205F", "\u3000" - ]; - - var whitespace = {}; - for (var i = 0; i < whitespaceChars.length; i++) { - whitespace[whitespaceChars[i]] = true; - } - - // Operator and punctuator mapping from token to tree node type name. - // NB: because the lexer doesn't backtrack, all token prefixes must themselves - // be valid tokens (e.g. !== is acceptable because its prefixes are the valid - // tokens != and !). - var opTypeNames = { - '\n': "NEWLINE", - ';': "SEMICOLON", - ',': "COMMA", - '?': "HOOK", - ':': "COLON", - '||': "OR", - '&&': "AND", - '|': "BITWISE_OR", - '^': "BITWISE_XOR", - '&': "BITWISE_AND", - '===': "STRICT_EQ", - '==': "EQ", - '=': "ASSIGN", - '!==': "STRICT_NE", - '!=': "NE", - '<<': "LSH", - '<=': "LE", - '<': "LT", - '>>>': "URSH", - '>>': "RSH", - '>=': "GE", - '>': "GT", - '++': "INCREMENT", - '--': "DECREMENT", - '+': "PLUS", - '-': "MINUS", - '*': "MUL", - '/': "DIV", - '%': "MOD", - '!': "NOT", - '~': "BITWISE_NOT", - '.': "DOT", - '[': "LEFT_BRACKET", - ']': "RIGHT_BRACKET", - '{': "LEFT_CURLY", - '}': "RIGHT_CURLY", - '(': "LEFT_PAREN", - ')': "RIGHT_PAREN" - }; - - // Hash of keyword identifier to tokens index. NB: we must null __proto__ to - // avoid toString, etc. namespace pollution. - var keywords = {__proto__: null}; - - // Define const END, etc., based on the token names. Also map name to index. - var tokenIds = {}; - - // Building up a string to be eval'd in different contexts. - var consts = Narcissus.hostSupportsEvalConst ? "const " : "var "; - for (var i = 0, j = tokens.length; i < j; i++) { - if (i > 0) - consts += ", "; - var t = tokens[i]; - var name; - if (/^[a-z]/.test(t)) { - name = t.toUpperCase(); - keywords[t] = i; - } else { - name = (/^\W/.test(t) ? opTypeNames[t] : t); - } - consts += name + " = " + i; - tokenIds[name] = i; - tokens[t] = i; - } - consts += ";"; - - var isStatementStartCode = {__proto__: null}; - for (i = 0, j = statementStartTokens.length; i < j; i++) - isStatementStartCode[keywords[statementStartTokens[i]]] = true; - - // Map assignment operators to their indexes in the tokens array. - var assignOps = ['|', '^', '&', '<<', '>>', '>>>', '+', '-', '*', '/', '%']; - - for (i = 0, j = assignOps.length; i < j; i++) { - t = assignOps[i]; - assignOps[t] = tokens[t]; - } - - function defineGetter(obj, prop, fn, dontDelete, dontEnum) { - Object.defineProperty(obj, prop, - { get: fn, configurable: !dontDelete, enumerable: !dontEnum }); - } - - function defineGetterSetter(obj, prop, getter, setter, dontDelete, dontEnum) { - Object.defineProperty(obj, prop, { - get: getter, - set: setter, - configurable: !dontDelete, - enumerable: !dontEnum - }); - } - - function defineMemoGetter(obj, prop, fn, dontDelete, dontEnum) { - Object.defineProperty(obj, prop, { - get: function() { - var val = fn(); - defineProperty(obj, prop, val, dontDelete, true, dontEnum); - return val; - }, - configurable: true, - enumerable: !dontEnum - }); - } - - function defineProperty(obj, prop, val, dontDelete, readOnly, dontEnum) { - Object.defineProperty(obj, prop, - { value: val, writable: !readOnly, configurable: !dontDelete, - enumerable: !dontEnum }); - } - - // Returns true if fn is a native function. (Note: SpiderMonkey specific.) - function isNativeCode(fn) { - // Relies on the toString method to identify native code. - return ((typeof fn) === "function") && fn.toString().match(/\[native code\]/); - } - - function getPropertyDescriptor(obj, name) { - while (obj) { - if (({}).hasOwnProperty.call(obj, name)) - return Object.getOwnPropertyDescriptor(obj, name); - obj = Object.getPrototypeOf(obj); - } - } - - function getPropertyNames(obj) { - var table = Object.create(null, {}); - while (obj) { - var names = Object.getOwnPropertyNames(obj); - for (var i = 0, n = names.length; i < n; i++) - table[names[i]] = true; - obj = Object.getPrototypeOf(obj); - } - return Object.keys(table); - } - - function getOwnProperties(obj) { - var map = {}; - for (var name in Object.getOwnPropertyNames(obj)) - map[name] = Object.getOwnPropertyDescriptor(obj, name); - return map; - } - - function blacklistHandler(target, blacklist) { - var mask = Object.create(null, {}); - var redirect = StringMap.create(blacklist).mapObject(function(name) { return mask; }); - return mixinHandler(redirect, target); - } - - function whitelistHandler(target, whitelist) { - var catchall = Object.create(null, {}); - var redirect = StringMap.create(whitelist).mapObject(function(name) { return target; }); - return mixinHandler(redirect, catchall); - } - - function mirrorHandler(target, writable) { - var handler = makePassthruHandler(target); - - var defineProperty = handler.defineProperty; - handler.defineProperty = function(name, desc) { - if (!desc.enumerable) - throw new Error("mirror property must be enumerable"); - if (!desc.configurable) - throw new Error("mirror property must be configurable"); - if (desc.writable !== writable) - throw new Error("mirror property must " + (writable ? "" : "not ") + "be writable"); - defineProperty(name, desc); - }; - - handler.fix = function() { }; - handler.getOwnPropertyDescriptor = handler.getPropertyDescriptor; - handler.getOwnPropertyNames = getPropertyNames.bind(handler, target); - handler.keys = handler.enumerate; - handler["delete"] = function() { return false; }; - handler.hasOwn = handler.has; - return handler; - } - - /* - * Mixin proxies break the single-inheritance model of prototypes, so - * the handler treats all properties as own-properties: - * - * X - * | - * +------------+------------+ - * | O | - * | | | - * | O O O | - * | | | | | - * | O O O O | - * | | | | | | - * | O O O O O | - * | | | | | | | - * +-(*)--(w)--(x)--(y)--(z)-+ - */ - - function mixinHandler(redirect, catchall) { - function targetFor(name) { - return hasOwn(redirect, name) ? redirect[name] : catchall; - } - - function getMuxPropertyDescriptor(name) { - var desc = getPropertyDescriptor(targetFor(name), name); - if (desc) - desc.configurable = true; - return desc; - } - - function getMuxPropertyNames() { - var names1 = Object.getOwnPropertyNames(redirect).filter(function(name) { - return name in redirect[name]; - }); - var names2 = getPropertyNames(catchall).filter(function(name) { - return !hasOwn(redirect, name); - }); - return names1.concat(names2); - } - - function enumerateMux() { - var result = Object.getOwnPropertyNames(redirect).filter(function(name) { - return name in redirect[name]; - }); - for (name in catchall) { - if (!hasOwn(redirect, name)) - result.push(name); - }; - return result; - } - - function hasMux(name) { - return name in targetFor(name); - } - - return { - getOwnPropertyDescriptor: getMuxPropertyDescriptor, - getPropertyDescriptor: getMuxPropertyDescriptor, - getOwnPropertyNames: getMuxPropertyNames, - defineProperty: function(name, desc) { - Object.defineProperty(targetFor(name), name, desc); - }, - "delete": function(name) { - var target = targetFor(name); - return delete target[name]; - }, - // FIXME: ha ha ha - fix: function() { }, - has: hasMux, - hasOwn: hasMux, - get: function(receiver, name) { - var target = targetFor(name); - return target[name]; - }, - set: function(receiver, name, val) { - var target = targetFor(name); - target[name] = val; - return true; - }, - enumerate: enumerateMux, - keys: enumerateMux - }; - } - - function makePassthruHandler(obj) { - // Handler copied from - // http://wiki.ecmascript.org/doku.php?id=harmony:proxies&s=proxy%20object#examplea_no-op_forwarding_proxy - return { - getOwnPropertyDescriptor: function(name) { - var desc = Object.getOwnPropertyDescriptor(obj, name); - - // a trapping proxy's properties must always be configurable - desc.configurable = true; - return desc; - }, - getPropertyDescriptor: function(name) { - var desc = getPropertyDescriptor(obj, name); - - // a trapping proxy's properties must always be configurable - desc.configurable = true; - return desc; - }, - getOwnPropertyNames: function() { - return Object.getOwnPropertyNames(obj); - }, - defineProperty: function(name, desc) { - Object.defineProperty(obj, name, desc); - }, - "delete": function(name) { return delete obj[name]; }, - fix: function() { - if (Object.isFrozen(obj)) { - return getOwnProperties(obj); - } - - // As long as obj is not frozen, the proxy won't allow itself to be fixed. - return undefined; // will cause a TypeError to be thrown - }, - - has: function(name) { return name in obj; }, - hasOwn: function(name) { return ({}).hasOwnProperty.call(obj, name); }, - get: function(receiver, name) { return obj[name]; }, - - // bad behavior when set fails in non-strict mode - set: function(receiver, name, val) { obj[name] = val; return true; }, - enumerate: function() { - var result = []; - for (name in obj) { result.push(name); }; - return result; - }, - keys: function() { return Object.keys(obj); } - }; - } - - var hasOwnProperty = ({}).hasOwnProperty; - - function hasOwn(obj, name) { - return hasOwnProperty.call(obj, name); - } - - function StringMap(table, size) { - this.table = table || Object.create(null, {}); - this.size = size || 0; - } - - StringMap.create = function(table) { - var init = Object.create(null, {}); - var size = 0; - var names = Object.getOwnPropertyNames(table); - for (var i = 0, n = names.length; i < n; i++) { - var name = names[i]; - init[name] = table[name]; - size++; - } - return new StringMap(init, size); - }; - - StringMap.prototype = { - has: function(x) { return hasOwnProperty.call(this.table, x); }, - set: function(x, v) { - if (!hasOwnProperty.call(this.table, x)) - this.size++; - this.table[x] = v; - }, - get: function(x) { return this.table[x]; }, - getDef: function(x, thunk) { - if (!hasOwnProperty.call(this.table, x)) { - this.size++; - this.table[x] = thunk(); - } - return this.table[x]; - }, - forEach: function(f) { - var table = this.table; - for (var key in table) - f.call(this, key, table[key]); - }, - map: function(f) { - var table1 = this.table; - var table2 = Object.create(null, {}); - this.forEach(function(key, val) { - table2[key] = f.call(this, val, key); - }); - return new StringMap(table2, this.size); - }, - mapObject: function(f) { - var table1 = this.table; - var table2 = Object.create(null, {}); - this.forEach(function(key, val) { - table2[key] = f.call(this, val, key); - }); - return table2; - }, - toObject: function() { - return this.mapObject(function(val) { return val; }); - }, - choose: function() { - return Object.getOwnPropertyNames(this.table)[0]; - }, - remove: function(x) { - if (hasOwnProperty.call(this.table, x)) { - this.size--; - delete this.table[x]; - } - }, - copy: function() { - var table = Object.create(null, {}); - for (var key in this.table) - table[key] = this.table[key]; - return new StringMap(table, this.size); - }, - toString: function() { return "[object StringMap]" } - }; - - // an object-key table with poor asymptotics (replace with WeakMap when possible) - function ObjectMap(array) { - this.array = array || []; - } - - function searchMap(map, key, found, notFound) { - var a = map.array; - for (var i = 0, n = a.length; i < n; i++) { - var pair = a[i]; - if (pair.key === key) - return found(pair, i); - } - return notFound(); - } - - ObjectMap.prototype = { - has: function(x) { - return searchMap(this, x, function() { return true }, function() { return false }); - }, - set: function(x, v) { - var a = this.array; - searchMap(this, x, - function(pair) { pair.value = v }, - function() { a.push({ key: x, value: v }) }); - }, - get: function(x) { - return searchMap(this, x, - function(pair) { return pair.value }, - function() { return null }); - }, - getDef: function(x, thunk) { - var a = this.array; - return searchMap(this, x, - function(pair) { return pair.value }, - function() { - var v = thunk(); - a.push({ key: x, value: v }); - return v; - }); - }, - forEach: function(f) { - var a = this.array; - for (var i = 0, n = a.length; i < n; i++) { - var pair = a[i]; - f.call(this, pair.key, pair.value); - } - }, - choose: function() { - return this.array[0].key; - }, - get size() { - return this.array.length; - }, - remove: function(x) { - var a = this.array; - searchMap(this, x, - function(pair, i) { a.splice(i, 1) }, - function() { }); - }, - copy: function() { - return new ObjectMap(this.array.map(function(pair) { - return { key: pair.key, value: pair.value } - })); - }, - clear: function() { - this.array = []; - }, - toString: function() { return "[object ObjectMap]" } - }; - - // non-destructive stack - function Stack(elts) { - this.elts = elts || null; - } - - Stack.prototype = { - push: function(x) { - return new Stack({ top: x, rest: this.elts }); - }, - top: function() { - if (!this.elts) - throw new Error("empty stack"); - return this.elts.top; - }, - isEmpty: function() { - return this.top === null; - }, - find: function(test) { - for (var elts = this.elts; elts; elts = elts.rest) { - if (test(elts.top)) - return elts.top; - } - return null; - }, - has: function(x) { - return Boolean(this.find(function(elt) { return elt === x })); - }, - forEach: function(f) { - for (var elts = this.elts; elts; elts = elts.rest) { - f(elts.top); - } - } - }; - - module.exports = { - tokens: tokens, - whitespace: whitespace, - opTypeNames: opTypeNames, - keywords: keywords, - isStatementStartCode: isStatementStartCode, - tokenIds: tokenIds, - consts: consts, - assignOps: assignOps, - defineGetter: defineGetter, - defineGetterSetter: defineGetterSetter, - defineMemoGetter: defineMemoGetter, - defineProperty: defineProperty, - isNativeCode: isNativeCode, - mirrorHandler: mirrorHandler, - mixinHandler: mixinHandler, - whitelistHandler: whitelistHandler, - blacklistHandler: blacklistHandler, - makePassthruHandler: makePassthruHandler, - StringMap: StringMap, - ObjectMap: ObjectMap, - Stack: Stack - }; });
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