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Diffstat (limited to 'third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/es5-shim/es5-shim.js')
| -rw-r--r-- | third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/es5-shim/es5-shim.js | 778 |
1 files changed, 778 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/es5-shim/es5-shim.js b/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/es5-shim/es5-shim.js new file mode 100644 index 0000000000..d59197db45 --- /dev/null +++ b/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/es5-shim/es5-shim.js @@ -0,0 +1,778 @@ +// Copyright 2009-2012 by contributors, MIT License +// vim: ts=4 sts=4 sw=4 expandtab + +// Module systems magic dance +(function (definition) { + // RequireJS + if (typeof define == "function") { + define(definition); + // YUI3 + } else if (typeof YUI == "function") { + YUI.add("es5", definition); + // CommonJS and <script> + } else { + definition(); + } +})(function () { + +/** + * 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 + * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/ + */ + +// +// 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("Function.prototype.bind called on incompatible " + target); + } + // 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; + var self = new F; + + var result = target.apply( + self, + args.concat(slice.call(arguments)) + ); + if (Object(result) === result) { + return result; + } + 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)) + ); + + } + + }; + // 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; +// Having a toString local variable name breaks in Opera so use _toString. +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; +var lookupSetter; +var supportsAccessors; +if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) { + defineGetter = call.bind(prototypeOfObject.__defineGetter__); + defineSetter = call.bind(prototypeOfObject.__defineSetter__); + 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 = -1, + 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); + } + } + }; +} + +// 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(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self) + result[i] = fun.call(thisp, self[i], i, self); + } + 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 = [], + value, + thisp = arguments[1]; + + // If no callback function or if callback is not a callable function + if (_toString(fun) != "[object Function]") { + throw new TypeError(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self) { + value = self[i]; + if (fun.call(thisp, value, i, self)) { + result.push(value); + } + } + } + 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(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self && !fun.call(thisp, self[i], i, self)) { + return false; + } + } + 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(fun + " is not a function"); + } + + for (var i = 0; i < length; i++) { + if (i in self && fun.call(thisp, self[i], i, self)) { + return true; + } + } + 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(fun + " is not a function"); + } + + // no value to return if no initial value and an empty array + if (!length && arguments.length == 1) { + throw new TypeError('reduce of empty array with no initial value'); + } + + var i = 0; + var result; + if (arguments.length >= 2) { + result = arguments[1]; + } else { + do { + if (i in self) { + result = self[i++]; + break; + } + + // if array contains no values, no initial value to return + if (++i >= length) { + throw new TypeError('reduce of empty array with no initial value'); + } + } while (true); + } + + for (; i < length; i++) { + if (i in self) { + result = fun.call(void 0, result, self[i], i, self); + } + } + + 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(fun + " is not a function"); + } + + // no value to return if no initial value, empty array + if (!length && arguments.length == 1) { + throw new TypeError('reduceRight of empty array with no initial value'); + } + + var result, i = length - 1; + if (arguments.length >= 2) { + result = arguments[1]; + } else { + do { + if (i in self) { + result = self[i--]; + break; + } + + // if array contains no values, no initial value to return + if (--i < 0) { + throw new TypeError('reduceRight of empty array with no initial value'); + } + } while (true); + } + + do { + if (i in this) { + result = fun.call(void 0, result, self[i], i, self); + } + } while (i--); + + 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), + length = self.length >>> 0; + + if (!length) { + return -1; + } + + 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) { + return i; + } + } + 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), + length = self.length >>> 0; + + if (!length) { + return -1; + } + 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]) { + return i; + } + } + return -1; + }; +} + +// +// Object +// ====== +// + +// 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", + "toLocaleString", + "valueOf", + "hasOwnProperty", + "isPrototypeOf", + "propertyIsEnumerable", + "constructor" + ], + dontEnumsLength = dontEnums.length; + + for (var key in {"toString": null}) { + hasDontEnumBug = false; + } + + Object.keys = function keys(object) { + + if ((typeof object != "object" && typeof object != "function") || object === null) { + throw new TypeError("Object.keys called on a non-object"); + } + + var keys = []; + for (var name in object) { + if (owns(object, name)) { + keys.push(name); + } + } + + if (hasDontEnumBug) { + for (var i = 0, ii = dontEnumsLength; i < ii; i++) { + var dontEnum = dontEnums[i]; + if (owns(object, dontEnum)) { + keys.push(dontEnum); + } + } + } + return 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("Date.prototype.toISOString called on non-finite value."); + } + + // 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(); + year = (year < 0 ? '-' : (year > 9999 ? '+' : '')) + ('00000' + Math.abs(year)).slice(0 <= year && year <= 9999 ? -4 : -6); + + 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('toISOString property is not callable'); + } + // 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 || 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) : + length >= 4 ? new NativeDate(Y, M, D, h) : + length >= 3 ? new NativeDate(Y, M, D) : + 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 + "(?:-(\\d{2})" + // optional day capture + "(?:" + // capture hours:minutes:seconds.milliseconds + "T(\\d{2})" + // hours capture + ":(\\d{2})" + // minutes capture + "(?:" + // optional :seconds.milliseconds + ":(\\d{2})" + // seconds capture + "(?:\\.(\\d{3}))?" + // milliseconds capture + ")?" + + "(?:" + // capture UTC offset component + "Z|" + // UTC capture + "(?:" + // offset specifier +/-hours:minutes + "([-+])" + // sign capture + "(\\d{2})" + // hours offset capture + ":(\\d{2})" + // minutes offset capture + ")" + + ")?)?)?)?" + + "$"); + + // 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); + }; + + 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 + "*$"); + String.prototype.trim = function trim() { + if (this === undefined || this === null) { + throw new TypeError("can't convert "+this+" to object"); + } + 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 + n = 0; + } else if (n !== 0 && n !== (1/0) && n !== -(1/0)) { + n = (n > 0 || -1) * Math.floor(Math.abs(n)); + } + return n; +}; + +var prepareString = "a"[0] != "a"; + // ES5 9.9 + // http://es5.github.com/#x9.9 +var toObject = function (o) { + if (o == null) { // this matches both null and undefined + throw new TypeError("can't convert "+o+" to object"); + } + // If the implementation doesn't support by-index access of + // string characters (ex. IE < 9), split the string + if (prepareString && typeof o == "string" && o) { + return o.split(""); + } + return Object(o); +}; + +}); |