Zsolt Haraszti | 7baf38a | 2016-10-01 15:15:18 -0700 | [diff] [blame] | 1 | /*! |
| 2 | * https://github.com/es-shims/es5-shim |
| 3 | * @license es5-shim Copyright 2009-2015 by contributors, MIT License |
| 4 | * see https://github.com/es-shims/es5-shim/blob/master/LICENSE |
| 5 | */ |
| 6 | |
| 7 | // vim: ts=4 sts=4 sw=4 expandtab |
| 8 | |
| 9 | // Add semicolon to prevent IIFE from being passed as argument to concatenated code. |
| 10 | ; |
| 11 | |
| 12 | // UMD (Universal Module Definition) |
| 13 | // see https://github.com/umdjs/umd/blob/master/templates/returnExports.js |
| 14 | (function (root, factory) { |
| 15 | 'use strict'; |
| 16 | |
| 17 | /* global define, exports, module */ |
| 18 | if (typeof define === 'function' && define.amd) { |
| 19 | // AMD. Register as an anonymous module. |
| 20 | define(factory); |
| 21 | } else if (typeof exports === 'object') { |
| 22 | // Node. Does not work with strict CommonJS, but |
| 23 | // only CommonJS-like enviroments that support module.exports, |
| 24 | // like Node. |
| 25 | module.exports = factory(); |
| 26 | } else { |
| 27 | // Browser globals (root is window) |
| 28 | root.returnExports = factory(); |
| 29 | } |
| 30 | }(this, function () { |
| 31 | /** |
| 32 | * Brings an environment as close to ECMAScript 5 compliance |
| 33 | * as is possible with the facilities of erstwhile engines. |
| 34 | * |
| 35 | * Annotated ES5: http://es5.github.com/ (specific links below) |
| 36 | * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf |
| 37 | * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/ |
| 38 | */ |
| 39 | |
| 40 | // Shortcut to an often accessed properties, in order to avoid multiple |
| 41 | // dereference that costs universally. This also holds a reference to known-good |
| 42 | // functions. |
| 43 | var $Array = Array; |
| 44 | var ArrayPrototype = $Array.prototype; |
| 45 | var $Object = Object; |
| 46 | var ObjectPrototype = $Object.prototype; |
| 47 | var $Function = Function; |
| 48 | var FunctionPrototype = $Function.prototype; |
| 49 | var $String = String; |
| 50 | var StringPrototype = $String.prototype; |
| 51 | var $Number = Number; |
| 52 | var NumberPrototype = $Number.prototype; |
| 53 | var array_slice = ArrayPrototype.slice; |
| 54 | var array_splice = ArrayPrototype.splice; |
| 55 | var array_push = ArrayPrototype.push; |
| 56 | var array_unshift = ArrayPrototype.unshift; |
| 57 | var array_concat = ArrayPrototype.concat; |
| 58 | var array_join = ArrayPrototype.join; |
| 59 | var call = FunctionPrototype.call; |
| 60 | var apply = FunctionPrototype.apply; |
| 61 | var max = Math.max; |
| 62 | var min = Math.min; |
| 63 | |
| 64 | // Having a toString local variable name breaks in Opera so use to_string. |
| 65 | var to_string = ObjectPrototype.toString; |
| 66 | |
| 67 | /* global Symbol */ |
| 68 | /* eslint-disable one-var-declaration-per-line, no-redeclare, max-statements-per-line */ |
| 69 | var hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol'; |
| 70 | var isCallable; /* inlined from https://npmjs.com/is-callable */ var fnToStr = Function.prototype.toString, constructorRegex = /^\s*class /, isES6ClassFn = function isES6ClassFn(value) { try { var fnStr = fnToStr.call(value); var singleStripped = fnStr.replace(/\/\/.*\n/g, ''); var multiStripped = singleStripped.replace(/\/\*[.\s\S]*\*\//g, ''); var spaceStripped = multiStripped.replace(/\n/mg, ' ').replace(/ {2}/g, ' '); return constructorRegex.test(spaceStripped); } catch (e) { return false; /* not a function */ } }, tryFunctionObject = function tryFunctionObject(value) { try { if (isES6ClassFn(value)) { return false; } fnToStr.call(value); return true; } catch (e) { return false; } }, fnClass = '[object Function]', genClass = '[object GeneratorFunction]', isCallable = function isCallable(value) { if (!value) { return false; } if (typeof value !== 'function' && typeof value !== 'object') { return false; } if (hasToStringTag) { return tryFunctionObject(value); } if (isES6ClassFn(value)) { return false; } var strClass = to_string.call(value); return strClass === fnClass || strClass === genClass; }; |
| 71 | |
| 72 | var isRegex; /* inlined from https://npmjs.com/is-regex */ var regexExec = RegExp.prototype.exec, tryRegexExec = function tryRegexExec(value) { try { regexExec.call(value); return true; } catch (e) { return false; } }, regexClass = '[object RegExp]'; isRegex = function isRegex(value) { if (typeof value !== 'object') { return false; } return hasToStringTag ? tryRegexExec(value) : to_string.call(value) === regexClass; }; |
| 73 | var isString; /* inlined from https://npmjs.com/is-string */ var strValue = String.prototype.valueOf, tryStringObject = function tryStringObject(value) { try { strValue.call(value); return true; } catch (e) { return false; } }, stringClass = '[object String]'; isString = function isString(value) { if (typeof value === 'string') { return true; } if (typeof value !== 'object') { return false; } return hasToStringTag ? tryStringObject(value) : to_string.call(value) === stringClass; }; |
| 74 | /* eslint-enable one-var-declaration-per-line, no-redeclare, max-statements-per-line */ |
| 75 | |
| 76 | /* inlined from http://npmjs.com/define-properties */ |
| 77 | var supportsDescriptors = $Object.defineProperty && (function () { |
| 78 | try { |
| 79 | var obj = {}; |
| 80 | $Object.defineProperty(obj, 'x', { enumerable: false, value: obj }); |
| 81 | for (var _ in obj) { // jscs:ignore disallowUnusedVariables |
| 82 | return false; |
| 83 | } |
| 84 | return obj.x === obj; |
| 85 | } catch (e) { /* this is ES3 */ |
| 86 | return false; |
| 87 | } |
| 88 | }()); |
| 89 | var defineProperties = (function (has) { |
| 90 | // Define configurable, writable, and non-enumerable props |
| 91 | // if they don't exist. |
| 92 | var defineProperty; |
| 93 | if (supportsDescriptors) { |
| 94 | defineProperty = function (object, name, method, forceAssign) { |
| 95 | if (!forceAssign && (name in object)) { |
| 96 | return; |
| 97 | } |
| 98 | $Object.defineProperty(object, name, { |
| 99 | configurable: true, |
| 100 | enumerable: false, |
| 101 | writable: true, |
| 102 | value: method |
| 103 | }); |
| 104 | }; |
| 105 | } else { |
| 106 | defineProperty = function (object, name, method, forceAssign) { |
| 107 | if (!forceAssign && (name in object)) { |
| 108 | return; |
| 109 | } |
| 110 | object[name] = method; |
| 111 | }; |
| 112 | } |
| 113 | return function defineProperties(object, map, forceAssign) { |
| 114 | for (var name in map) { |
| 115 | if (has.call(map, name)) { |
| 116 | defineProperty(object, name, map[name], forceAssign); |
| 117 | } |
| 118 | } |
| 119 | }; |
| 120 | }(ObjectPrototype.hasOwnProperty)); |
| 121 | |
| 122 | // |
| 123 | // Util |
| 124 | // ====== |
| 125 | // |
| 126 | |
| 127 | /* replaceable with https://npmjs.com/package/es-abstract /helpers/isPrimitive */ |
| 128 | var isPrimitive = function isPrimitive(input) { |
| 129 | var type = typeof input; |
| 130 | return input === null || (type !== 'object' && type !== 'function'); |
| 131 | }; |
| 132 | |
| 133 | var isActualNaN = $Number.isNaN || function isActualNaN(x) { |
| 134 | return x !== x; |
| 135 | }; |
| 136 | |
| 137 | var ES = { |
| 138 | // ES5 9.4 |
| 139 | // http://es5.github.com/#x9.4 |
| 140 | // http://jsperf.com/to-integer |
| 141 | /* replaceable with https://npmjs.com/package/es-abstract ES5.ToInteger */ |
| 142 | ToInteger: function ToInteger(num) { |
| 143 | var n = +num; |
| 144 | if (isActualNaN(n)) { |
| 145 | n = 0; |
| 146 | } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) { |
| 147 | n = (n > 0 || -1) * Math.floor(Math.abs(n)); |
| 148 | } |
| 149 | return n; |
| 150 | }, |
| 151 | |
| 152 | /* replaceable with https://npmjs.com/package/es-abstract ES5.ToPrimitive */ |
| 153 | ToPrimitive: function ToPrimitive(input) { |
| 154 | var val, valueOf, toStr; |
| 155 | if (isPrimitive(input)) { |
| 156 | return input; |
| 157 | } |
| 158 | valueOf = input.valueOf; |
| 159 | if (isCallable(valueOf)) { |
| 160 | val = valueOf.call(input); |
| 161 | if (isPrimitive(val)) { |
| 162 | return val; |
| 163 | } |
| 164 | } |
| 165 | toStr = input.toString; |
| 166 | if (isCallable(toStr)) { |
| 167 | val = toStr.call(input); |
| 168 | if (isPrimitive(val)) { |
| 169 | return val; |
| 170 | } |
| 171 | } |
| 172 | throw new TypeError(); |
| 173 | }, |
| 174 | |
| 175 | // ES5 9.9 |
| 176 | // http://es5.github.com/#x9.9 |
| 177 | /* replaceable with https://npmjs.com/package/es-abstract ES5.ToObject */ |
| 178 | ToObject: function (o) { |
| 179 | if (o == null) { // this matches both null and undefined |
| 180 | throw new TypeError("can't convert " + o + ' to object'); |
| 181 | } |
| 182 | return $Object(o); |
| 183 | }, |
| 184 | |
| 185 | /* replaceable with https://npmjs.com/package/es-abstract ES5.ToUint32 */ |
| 186 | ToUint32: function ToUint32(x) { |
| 187 | return x >>> 0; |
| 188 | } |
| 189 | }; |
| 190 | |
| 191 | // |
| 192 | // Function |
| 193 | // ======== |
| 194 | // |
| 195 | |
| 196 | // ES-5 15.3.4.5 |
| 197 | // http://es5.github.com/#x15.3.4.5 |
| 198 | |
| 199 | var Empty = function Empty() {}; |
| 200 | |
| 201 | defineProperties(FunctionPrototype, { |
| 202 | bind: function bind(that) { // .length is 1 |
| 203 | // 1. Let Target be the this value. |
| 204 | var target = this; |
| 205 | // 2. If IsCallable(Target) is false, throw a TypeError exception. |
| 206 | if (!isCallable(target)) { |
| 207 | throw new TypeError('Function.prototype.bind called on incompatible ' + target); |
| 208 | } |
| 209 | // 3. Let A be a new (possibly empty) internal list of all of the |
| 210 | // argument values provided after thisArg (arg1, arg2 etc), in order. |
| 211 | // XXX slicedArgs will stand in for "A" if used |
| 212 | var args = array_slice.call(arguments, 1); // for normal call |
| 213 | // 4. Let F be a new native ECMAScript object. |
| 214 | // 11. Set the [[Prototype]] internal property of F to the standard |
| 215 | // built-in Function prototype object as specified in 15.3.3.1. |
| 216 | // 12. Set the [[Call]] internal property of F as described in |
| 217 | // 15.3.4.5.1. |
| 218 | // 13. Set the [[Construct]] internal property of F as described in |
| 219 | // 15.3.4.5.2. |
| 220 | // 14. Set the [[HasInstance]] internal property of F as described in |
| 221 | // 15.3.4.5.3. |
| 222 | var bound; |
| 223 | var binder = function () { |
| 224 | |
| 225 | if (this instanceof bound) { |
| 226 | // 15.3.4.5.2 [[Construct]] |
| 227 | // When the [[Construct]] internal method of a function object, |
| 228 | // F that was created using the bind function is called with a |
| 229 | // list of arguments ExtraArgs, the following steps are taken: |
| 230 | // 1. Let target be the value of F's [[TargetFunction]] |
| 231 | // internal property. |
| 232 | // 2. If target has no [[Construct]] internal method, a |
| 233 | // TypeError exception is thrown. |
| 234 | // 3. Let boundArgs be the value of F's [[BoundArgs]] internal |
| 235 | // property. |
| 236 | // 4. Let args be a new list containing the same values as the |
| 237 | // list boundArgs in the same order followed by the same |
| 238 | // values as the list ExtraArgs in the same order. |
| 239 | // 5. Return the result of calling the [[Construct]] internal |
| 240 | // method of target providing args as the arguments. |
| 241 | |
| 242 | var result = apply.call( |
| 243 | target, |
| 244 | this, |
| 245 | array_concat.call(args, array_slice.call(arguments)) |
| 246 | ); |
| 247 | if ($Object(result) === result) { |
| 248 | return result; |
| 249 | } |
| 250 | return this; |
| 251 | |
| 252 | } else { |
| 253 | // 15.3.4.5.1 [[Call]] |
| 254 | // When the [[Call]] internal method of a function object, F, |
| 255 | // which was created using the bind function is called with a |
| 256 | // this value and a list of arguments ExtraArgs, the following |
| 257 | // steps are taken: |
| 258 | // 1. Let boundArgs be the value of F's [[BoundArgs]] internal |
| 259 | // property. |
| 260 | // 2. Let boundThis be the value of F's [[BoundThis]] internal |
| 261 | // property. |
| 262 | // 3. Let target be the value of F's [[TargetFunction]] internal |
| 263 | // property. |
| 264 | // 4. Let args be a new list containing the same values as the |
| 265 | // list boundArgs in the same order followed by the same |
| 266 | // values as the list ExtraArgs in the same order. |
| 267 | // 5. Return the result of calling the [[Call]] internal method |
| 268 | // of target providing boundThis as the this value and |
| 269 | // providing args as the arguments. |
| 270 | |
| 271 | // equiv: target.call(this, ...boundArgs, ...args) |
| 272 | return apply.call( |
| 273 | target, |
| 274 | that, |
| 275 | array_concat.call(args, array_slice.call(arguments)) |
| 276 | ); |
| 277 | |
| 278 | } |
| 279 | |
| 280 | }; |
| 281 | |
| 282 | // 15. If the [[Class]] internal property of Target is "Function", then |
| 283 | // a. Let L be the length property of Target minus the length of A. |
| 284 | // b. Set the length own property of F to either 0 or L, whichever is |
| 285 | // larger. |
| 286 | // 16. Else set the length own property of F to 0. |
| 287 | |
| 288 | var boundLength = max(0, target.length - args.length); |
| 289 | |
| 290 | // 17. Set the attributes of the length own property of F to the values |
| 291 | // specified in 15.3.5.1. |
| 292 | var boundArgs = []; |
| 293 | for (var i = 0; i < boundLength; i++) { |
| 294 | array_push.call(boundArgs, '$' + i); |
| 295 | } |
| 296 | |
| 297 | // XXX Build a dynamic function with desired amount of arguments is the only |
| 298 | // way to set the length property of a function. |
| 299 | // In environments where Content Security Policies enabled (Chrome extensions, |
| 300 | // for ex.) all use of eval or Function costructor throws an exception. |
| 301 | // However in all of these environments Function.prototype.bind exists |
| 302 | // and so this code will never be executed. |
| 303 | bound = $Function('binder', 'return function (' + array_join.call(boundArgs, ',') + '){ return binder.apply(this, arguments); }')(binder); |
| 304 | |
| 305 | if (target.prototype) { |
| 306 | Empty.prototype = target.prototype; |
| 307 | bound.prototype = new Empty(); |
| 308 | // Clean up dangling references. |
| 309 | Empty.prototype = null; |
| 310 | } |
| 311 | |
| 312 | // TODO |
| 313 | // 18. Set the [[Extensible]] internal property of F to true. |
| 314 | |
| 315 | // TODO |
| 316 | // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3). |
| 317 | // 20. Call the [[DefineOwnProperty]] internal method of F with |
| 318 | // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]: |
| 319 | // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and |
| 320 | // false. |
| 321 | // 21. Call the [[DefineOwnProperty]] internal method of F with |
| 322 | // arguments "arguments", PropertyDescriptor {[[Get]]: thrower, |
| 323 | // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false}, |
| 324 | // and false. |
| 325 | |
| 326 | // TODO |
| 327 | // NOTE Function objects created using Function.prototype.bind do not |
| 328 | // have a prototype property or the [[Code]], [[FormalParameters]], and |
| 329 | // [[Scope]] internal properties. |
| 330 | // XXX can't delete prototype in pure-js. |
| 331 | |
| 332 | // 22. Return F. |
| 333 | return bound; |
| 334 | } |
| 335 | }); |
| 336 | |
| 337 | // _Please note: Shortcuts are defined after `Function.prototype.bind` as we |
| 338 | // use it in defining shortcuts. |
| 339 | var owns = call.bind(ObjectPrototype.hasOwnProperty); |
| 340 | var toStr = call.bind(ObjectPrototype.toString); |
| 341 | var arraySlice = call.bind(array_slice); |
| 342 | var arraySliceApply = apply.bind(array_slice); |
| 343 | var strSlice = call.bind(StringPrototype.slice); |
| 344 | var strSplit = call.bind(StringPrototype.split); |
| 345 | var strIndexOf = call.bind(StringPrototype.indexOf); |
| 346 | var pushCall = call.bind(array_push); |
| 347 | var isEnum = call.bind(ObjectPrototype.propertyIsEnumerable); |
| 348 | var arraySort = call.bind(ArrayPrototype.sort); |
| 349 | |
| 350 | // |
| 351 | // Array |
| 352 | // ===== |
| 353 | // |
| 354 | |
| 355 | var isArray = $Array.isArray || function isArray(obj) { |
| 356 | return toStr(obj) === '[object Array]'; |
| 357 | }; |
| 358 | |
| 359 | // ES5 15.4.4.12 |
| 360 | // http://es5.github.com/#x15.4.4.13 |
| 361 | // Return len+argCount. |
| 362 | // [bugfix, ielt8] |
| 363 | // IE < 8 bug: [].unshift(0) === undefined but should be "1" |
| 364 | var hasUnshiftReturnValueBug = [].unshift(0) !== 1; |
| 365 | defineProperties(ArrayPrototype, { |
| 366 | unshift: function () { |
| 367 | array_unshift.apply(this, arguments); |
| 368 | return this.length; |
| 369 | } |
| 370 | }, hasUnshiftReturnValueBug); |
| 371 | |
| 372 | // ES5 15.4.3.2 |
| 373 | // http://es5.github.com/#x15.4.3.2 |
| 374 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray |
| 375 | defineProperties($Array, { isArray: isArray }); |
| 376 | |
| 377 | // The IsCallable() check in the Array functions |
| 378 | // has been replaced with a strict check on the |
| 379 | // internal class of the object to trap cases where |
| 380 | // the provided function was actually a regular |
| 381 | // expression literal, which in V8 and |
| 382 | // JavaScriptCore is a typeof "function". Only in |
| 383 | // V8 are regular expression literals permitted as |
| 384 | // reduce parameters, so it is desirable in the |
| 385 | // general case for the shim to match the more |
| 386 | // strict and common behavior of rejecting regular |
| 387 | // expressions. |
| 388 | |
| 389 | // ES5 15.4.4.18 |
| 390 | // http://es5.github.com/#x15.4.4.18 |
| 391 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach |
| 392 | |
| 393 | // Check failure of by-index access of string characters (IE < 9) |
| 394 | // and failure of `0 in boxedString` (Rhino) |
| 395 | var boxedString = $Object('a'); |
| 396 | var splitString = boxedString[0] !== 'a' || !(0 in boxedString); |
| 397 | |
| 398 | var properlyBoxesContext = function properlyBoxed(method) { |
| 399 | // Check node 0.6.21 bug where third parameter is not boxed |
| 400 | var properlyBoxesNonStrict = true; |
| 401 | var properlyBoxesStrict = true; |
| 402 | var threwException = false; |
| 403 | if (method) { |
| 404 | try { |
| 405 | method.call('foo', function (_, __, context) { |
| 406 | if (typeof context !== 'object') { |
| 407 | properlyBoxesNonStrict = false; |
| 408 | } |
| 409 | }); |
| 410 | |
| 411 | method.call([1], function () { |
| 412 | 'use strict'; |
| 413 | |
| 414 | properlyBoxesStrict = typeof this === 'string'; |
| 415 | }, 'x'); |
| 416 | } catch (e) { |
| 417 | threwException = true; |
| 418 | } |
| 419 | } |
| 420 | return !!method && !threwException && properlyBoxesNonStrict && properlyBoxesStrict; |
| 421 | }; |
| 422 | |
| 423 | defineProperties(ArrayPrototype, { |
| 424 | forEach: function forEach(callbackfn/*, thisArg*/) { |
| 425 | var object = ES.ToObject(this); |
| 426 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 427 | var i = -1; |
| 428 | var length = ES.ToUint32(self.length); |
| 429 | var T; |
| 430 | if (arguments.length > 1) { |
| 431 | T = arguments[1]; |
| 432 | } |
| 433 | |
| 434 | // If no callback function or if callback is not a callable function |
| 435 | if (!isCallable(callbackfn)) { |
| 436 | throw new TypeError('Array.prototype.forEach callback must be a function'); |
| 437 | } |
| 438 | |
| 439 | while (++i < length) { |
| 440 | if (i in self) { |
| 441 | // Invoke the callback function with call, passing arguments: |
| 442 | // context, property value, property key, thisArg object |
| 443 | if (typeof T === 'undefined') { |
| 444 | callbackfn(self[i], i, object); |
| 445 | } else { |
| 446 | callbackfn.call(T, self[i], i, object); |
| 447 | } |
| 448 | } |
| 449 | } |
| 450 | } |
| 451 | }, !properlyBoxesContext(ArrayPrototype.forEach)); |
| 452 | |
| 453 | // ES5 15.4.4.19 |
| 454 | // http://es5.github.com/#x15.4.4.19 |
| 455 | // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map |
| 456 | defineProperties(ArrayPrototype, { |
| 457 | map: function map(callbackfn/*, thisArg*/) { |
| 458 | var object = ES.ToObject(this); |
| 459 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 460 | var length = ES.ToUint32(self.length); |
| 461 | var result = $Array(length); |
| 462 | var T; |
| 463 | if (arguments.length > 1) { |
| 464 | T = arguments[1]; |
| 465 | } |
| 466 | |
| 467 | // If no callback function or if callback is not a callable function |
| 468 | if (!isCallable(callbackfn)) { |
| 469 | throw new TypeError('Array.prototype.map callback must be a function'); |
| 470 | } |
| 471 | |
| 472 | for (var i = 0; i < length; i++) { |
| 473 | if (i in self) { |
| 474 | if (typeof T === 'undefined') { |
| 475 | result[i] = callbackfn(self[i], i, object); |
| 476 | } else { |
| 477 | result[i] = callbackfn.call(T, self[i], i, object); |
| 478 | } |
| 479 | } |
| 480 | } |
| 481 | return result; |
| 482 | } |
| 483 | }, !properlyBoxesContext(ArrayPrototype.map)); |
| 484 | |
| 485 | // ES5 15.4.4.20 |
| 486 | // http://es5.github.com/#x15.4.4.20 |
| 487 | // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter |
| 488 | defineProperties(ArrayPrototype, { |
| 489 | filter: function filter(callbackfn/*, thisArg*/) { |
| 490 | var object = ES.ToObject(this); |
| 491 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 492 | var length = ES.ToUint32(self.length); |
| 493 | var result = []; |
| 494 | var value; |
| 495 | var T; |
| 496 | if (arguments.length > 1) { |
| 497 | T = arguments[1]; |
| 498 | } |
| 499 | |
| 500 | // If no callback function or if callback is not a callable function |
| 501 | if (!isCallable(callbackfn)) { |
| 502 | throw new TypeError('Array.prototype.filter callback must be a function'); |
| 503 | } |
| 504 | |
| 505 | for (var i = 0; i < length; i++) { |
| 506 | if (i in self) { |
| 507 | value = self[i]; |
| 508 | if (typeof T === 'undefined' ? callbackfn(value, i, object) : callbackfn.call(T, value, i, object)) { |
| 509 | pushCall(result, value); |
| 510 | } |
| 511 | } |
| 512 | } |
| 513 | return result; |
| 514 | } |
| 515 | }, !properlyBoxesContext(ArrayPrototype.filter)); |
| 516 | |
| 517 | // ES5 15.4.4.16 |
| 518 | // http://es5.github.com/#x15.4.4.16 |
| 519 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every |
| 520 | defineProperties(ArrayPrototype, { |
| 521 | every: function every(callbackfn/*, thisArg*/) { |
| 522 | var object = ES.ToObject(this); |
| 523 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 524 | var length = ES.ToUint32(self.length); |
| 525 | var T; |
| 526 | if (arguments.length > 1) { |
| 527 | T = arguments[1]; |
| 528 | } |
| 529 | |
| 530 | // If no callback function or if callback is not a callable function |
| 531 | if (!isCallable(callbackfn)) { |
| 532 | throw new TypeError('Array.prototype.every callback must be a function'); |
| 533 | } |
| 534 | |
| 535 | for (var i = 0; i < length; i++) { |
| 536 | if (i in self && !(typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) { |
| 537 | return false; |
| 538 | } |
| 539 | } |
| 540 | return true; |
| 541 | } |
| 542 | }, !properlyBoxesContext(ArrayPrototype.every)); |
| 543 | |
| 544 | // ES5 15.4.4.17 |
| 545 | // http://es5.github.com/#x15.4.4.17 |
| 546 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some |
| 547 | defineProperties(ArrayPrototype, { |
| 548 | some: function some(callbackfn/*, thisArg */) { |
| 549 | var object = ES.ToObject(this); |
| 550 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 551 | var length = ES.ToUint32(self.length); |
| 552 | var T; |
| 553 | if (arguments.length > 1) { |
| 554 | T = arguments[1]; |
| 555 | } |
| 556 | |
| 557 | // If no callback function or if callback is not a callable function |
| 558 | if (!isCallable(callbackfn)) { |
| 559 | throw new TypeError('Array.prototype.some callback must be a function'); |
| 560 | } |
| 561 | |
| 562 | for (var i = 0; i < length; i++) { |
| 563 | if (i in self && (typeof T === 'undefined' ? callbackfn(self[i], i, object) : callbackfn.call(T, self[i], i, object))) { |
| 564 | return true; |
| 565 | } |
| 566 | } |
| 567 | return false; |
| 568 | } |
| 569 | }, !properlyBoxesContext(ArrayPrototype.some)); |
| 570 | |
| 571 | // ES5 15.4.4.21 |
| 572 | // http://es5.github.com/#x15.4.4.21 |
| 573 | // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce |
| 574 | var reduceCoercesToObject = false; |
| 575 | if (ArrayPrototype.reduce) { |
| 576 | reduceCoercesToObject = typeof ArrayPrototype.reduce.call('es5', function (_, __, ___, list) { |
| 577 | return list; |
| 578 | }) === 'object'; |
| 579 | } |
| 580 | defineProperties(ArrayPrototype, { |
| 581 | reduce: function reduce(callbackfn/*, initialValue*/) { |
| 582 | var object = ES.ToObject(this); |
| 583 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 584 | var length = ES.ToUint32(self.length); |
| 585 | |
| 586 | // If no callback function or if callback is not a callable function |
| 587 | if (!isCallable(callbackfn)) { |
| 588 | throw new TypeError('Array.prototype.reduce callback must be a function'); |
| 589 | } |
| 590 | |
| 591 | // no value to return if no initial value and an empty array |
| 592 | if (length === 0 && arguments.length === 1) { |
| 593 | throw new TypeError('reduce of empty array with no initial value'); |
| 594 | } |
| 595 | |
| 596 | var i = 0; |
| 597 | var result; |
| 598 | if (arguments.length >= 2) { |
| 599 | result = arguments[1]; |
| 600 | } else { |
| 601 | do { |
| 602 | if (i in self) { |
| 603 | result = self[i++]; |
| 604 | break; |
| 605 | } |
| 606 | |
| 607 | // if array contains no values, no initial value to return |
| 608 | if (++i >= length) { |
| 609 | throw new TypeError('reduce of empty array with no initial value'); |
| 610 | } |
| 611 | } while (true); |
| 612 | } |
| 613 | |
| 614 | for (; i < length; i++) { |
| 615 | if (i in self) { |
| 616 | result = callbackfn(result, self[i], i, object); |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | return result; |
| 621 | } |
| 622 | }, !reduceCoercesToObject); |
| 623 | |
| 624 | // ES5 15.4.4.22 |
| 625 | // http://es5.github.com/#x15.4.4.22 |
| 626 | // https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight |
| 627 | var reduceRightCoercesToObject = false; |
| 628 | if (ArrayPrototype.reduceRight) { |
| 629 | reduceRightCoercesToObject = typeof ArrayPrototype.reduceRight.call('es5', function (_, __, ___, list) { |
| 630 | return list; |
| 631 | }) === 'object'; |
| 632 | } |
| 633 | defineProperties(ArrayPrototype, { |
| 634 | reduceRight: function reduceRight(callbackfn/*, initial*/) { |
| 635 | var object = ES.ToObject(this); |
| 636 | var self = splitString && isString(this) ? strSplit(this, '') : object; |
| 637 | var length = ES.ToUint32(self.length); |
| 638 | |
| 639 | // If no callback function or if callback is not a callable function |
| 640 | if (!isCallable(callbackfn)) { |
| 641 | throw new TypeError('Array.prototype.reduceRight callback must be a function'); |
| 642 | } |
| 643 | |
| 644 | // no value to return if no initial value, empty array |
| 645 | if (length === 0 && arguments.length === 1) { |
| 646 | throw new TypeError('reduceRight of empty array with no initial value'); |
| 647 | } |
| 648 | |
| 649 | var result; |
| 650 | var i = length - 1; |
| 651 | if (arguments.length >= 2) { |
| 652 | result = arguments[1]; |
| 653 | } else { |
| 654 | do { |
| 655 | if (i in self) { |
| 656 | result = self[i--]; |
| 657 | break; |
| 658 | } |
| 659 | |
| 660 | // if array contains no values, no initial value to return |
| 661 | if (--i < 0) { |
| 662 | throw new TypeError('reduceRight of empty array with no initial value'); |
| 663 | } |
| 664 | } while (true); |
| 665 | } |
| 666 | |
| 667 | if (i < 0) { |
| 668 | return result; |
| 669 | } |
| 670 | |
| 671 | do { |
| 672 | if (i in self) { |
| 673 | result = callbackfn(result, self[i], i, object); |
| 674 | } |
| 675 | } while (i--); |
| 676 | |
| 677 | return result; |
| 678 | } |
| 679 | }, !reduceRightCoercesToObject); |
| 680 | |
| 681 | // ES5 15.4.4.14 |
| 682 | // http://es5.github.com/#x15.4.4.14 |
| 683 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf |
| 684 | var hasFirefox2IndexOfBug = ArrayPrototype.indexOf && [0, 1].indexOf(1, 2) !== -1; |
| 685 | defineProperties(ArrayPrototype, { |
| 686 | indexOf: function indexOf(searchElement/*, fromIndex */) { |
| 687 | var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this); |
| 688 | var length = ES.ToUint32(self.length); |
| 689 | |
| 690 | if (length === 0) { |
| 691 | return -1; |
| 692 | } |
| 693 | |
| 694 | var i = 0; |
| 695 | if (arguments.length > 1) { |
| 696 | i = ES.ToInteger(arguments[1]); |
| 697 | } |
| 698 | |
| 699 | // handle negative indices |
| 700 | i = i >= 0 ? i : max(0, length + i); |
| 701 | for (; i < length; i++) { |
| 702 | if (i in self && self[i] === searchElement) { |
| 703 | return i; |
| 704 | } |
| 705 | } |
| 706 | return -1; |
| 707 | } |
| 708 | }, hasFirefox2IndexOfBug); |
| 709 | |
| 710 | // ES5 15.4.4.15 |
| 711 | // http://es5.github.com/#x15.4.4.15 |
| 712 | // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf |
| 713 | var hasFirefox2LastIndexOfBug = ArrayPrototype.lastIndexOf && [0, 1].lastIndexOf(0, -3) !== -1; |
| 714 | defineProperties(ArrayPrototype, { |
| 715 | lastIndexOf: function lastIndexOf(searchElement/*, fromIndex */) { |
| 716 | var self = splitString && isString(this) ? strSplit(this, '') : ES.ToObject(this); |
| 717 | var length = ES.ToUint32(self.length); |
| 718 | |
| 719 | if (length === 0) { |
| 720 | return -1; |
| 721 | } |
| 722 | var i = length - 1; |
| 723 | if (arguments.length > 1) { |
| 724 | i = min(i, ES.ToInteger(arguments[1])); |
| 725 | } |
| 726 | // handle negative indices |
| 727 | i = i >= 0 ? i : length - Math.abs(i); |
| 728 | for (; i >= 0; i--) { |
| 729 | if (i in self && searchElement === self[i]) { |
| 730 | return i; |
| 731 | } |
| 732 | } |
| 733 | return -1; |
| 734 | } |
| 735 | }, hasFirefox2LastIndexOfBug); |
| 736 | |
| 737 | // ES5 15.4.4.12 |
| 738 | // http://es5.github.com/#x15.4.4.12 |
| 739 | var spliceNoopReturnsEmptyArray = (function () { |
| 740 | var a = [1, 2]; |
| 741 | var result = a.splice(); |
| 742 | return a.length === 2 && isArray(result) && result.length === 0; |
| 743 | }()); |
| 744 | defineProperties(ArrayPrototype, { |
| 745 | // Safari 5.0 bug where .splice() returns undefined |
| 746 | splice: function splice(start, deleteCount) { |
| 747 | if (arguments.length === 0) { |
| 748 | return []; |
| 749 | } else { |
| 750 | return array_splice.apply(this, arguments); |
| 751 | } |
| 752 | } |
| 753 | }, !spliceNoopReturnsEmptyArray); |
| 754 | |
| 755 | var spliceWorksWithEmptyObject = (function () { |
| 756 | var obj = {}; |
| 757 | ArrayPrototype.splice.call(obj, 0, 0, 1); |
| 758 | return obj.length === 1; |
| 759 | }()); |
| 760 | defineProperties(ArrayPrototype, { |
| 761 | splice: function splice(start, deleteCount) { |
| 762 | if (arguments.length === 0) { |
| 763 | return []; |
| 764 | } |
| 765 | var args = arguments; |
| 766 | this.length = max(ES.ToInteger(this.length), 0); |
| 767 | if (arguments.length > 0 && typeof deleteCount !== 'number') { |
| 768 | args = arraySlice(arguments); |
| 769 | if (args.length < 2) { |
| 770 | pushCall(args, this.length - start); |
| 771 | } else { |
| 772 | args[1] = ES.ToInteger(deleteCount); |
| 773 | } |
| 774 | } |
| 775 | return array_splice.apply(this, args); |
| 776 | } |
| 777 | }, !spliceWorksWithEmptyObject); |
| 778 | var spliceWorksWithLargeSparseArrays = (function () { |
| 779 | // Per https://github.com/es-shims/es5-shim/issues/295 |
| 780 | // Safari 7/8 breaks with sparse arrays of size 1e5 or greater |
| 781 | var arr = new $Array(1e5); |
| 782 | // note: the index MUST be 8 or larger or the test will false pass |
| 783 | arr[8] = 'x'; |
| 784 | arr.splice(1, 1); |
| 785 | // note: this test must be defined *after* the indexOf shim |
| 786 | // per https://github.com/es-shims/es5-shim/issues/313 |
| 787 | return arr.indexOf('x') === 7; |
| 788 | }()); |
| 789 | var spliceWorksWithSmallSparseArrays = (function () { |
| 790 | // Per https://github.com/es-shims/es5-shim/issues/295 |
| 791 | // Opera 12.15 breaks on this, no idea why. |
| 792 | var n = 256; |
| 793 | var arr = []; |
| 794 | arr[n] = 'a'; |
| 795 | arr.splice(n + 1, 0, 'b'); |
| 796 | return arr[n] === 'a'; |
| 797 | }()); |
| 798 | defineProperties(ArrayPrototype, { |
| 799 | splice: function splice(start, deleteCount) { |
| 800 | var O = ES.ToObject(this); |
| 801 | var A = []; |
| 802 | var len = ES.ToUint32(O.length); |
| 803 | var relativeStart = ES.ToInteger(start); |
| 804 | var actualStart = relativeStart < 0 ? max((len + relativeStart), 0) : min(relativeStart, len); |
| 805 | var actualDeleteCount = min(max(ES.ToInteger(deleteCount), 0), len - actualStart); |
| 806 | |
| 807 | var k = 0; |
| 808 | var from; |
| 809 | while (k < actualDeleteCount) { |
| 810 | from = $String(actualStart + k); |
| 811 | if (owns(O, from)) { |
| 812 | A[k] = O[from]; |
| 813 | } |
| 814 | k += 1; |
| 815 | } |
| 816 | |
| 817 | var items = arraySlice(arguments, 2); |
| 818 | var itemCount = items.length; |
| 819 | var to; |
| 820 | if (itemCount < actualDeleteCount) { |
| 821 | k = actualStart; |
| 822 | var maxK = len - actualDeleteCount; |
| 823 | while (k < maxK) { |
| 824 | from = $String(k + actualDeleteCount); |
| 825 | to = $String(k + itemCount); |
| 826 | if (owns(O, from)) { |
| 827 | O[to] = O[from]; |
| 828 | } else { |
| 829 | delete O[to]; |
| 830 | } |
| 831 | k += 1; |
| 832 | } |
| 833 | k = len; |
| 834 | var minK = len - actualDeleteCount + itemCount; |
| 835 | while (k > minK) { |
| 836 | delete O[k - 1]; |
| 837 | k -= 1; |
| 838 | } |
| 839 | } else if (itemCount > actualDeleteCount) { |
| 840 | k = len - actualDeleteCount; |
| 841 | while (k > actualStart) { |
| 842 | from = $String(k + actualDeleteCount - 1); |
| 843 | to = $String(k + itemCount - 1); |
| 844 | if (owns(O, from)) { |
| 845 | O[to] = O[from]; |
| 846 | } else { |
| 847 | delete O[to]; |
| 848 | } |
| 849 | k -= 1; |
| 850 | } |
| 851 | } |
| 852 | k = actualStart; |
| 853 | for (var i = 0; i < items.length; ++i) { |
| 854 | O[k] = items[i]; |
| 855 | k += 1; |
| 856 | } |
| 857 | O.length = len - actualDeleteCount + itemCount; |
| 858 | |
| 859 | return A; |
| 860 | } |
| 861 | }, !spliceWorksWithLargeSparseArrays || !spliceWorksWithSmallSparseArrays); |
| 862 | |
| 863 | var originalJoin = ArrayPrototype.join; |
| 864 | var hasStringJoinBug; |
| 865 | try { |
| 866 | hasStringJoinBug = Array.prototype.join.call('123', ',') !== '1,2,3'; |
| 867 | } catch (e) { |
| 868 | hasStringJoinBug = true; |
| 869 | } |
| 870 | if (hasStringJoinBug) { |
| 871 | defineProperties(ArrayPrototype, { |
| 872 | join: function join(separator) { |
| 873 | var sep = typeof separator === 'undefined' ? ',' : separator; |
| 874 | return originalJoin.call(isString(this) ? strSplit(this, '') : this, sep); |
| 875 | } |
| 876 | }, hasStringJoinBug); |
| 877 | } |
| 878 | |
| 879 | var hasJoinUndefinedBug = [1, 2].join(undefined) !== '1,2'; |
| 880 | if (hasJoinUndefinedBug) { |
| 881 | defineProperties(ArrayPrototype, { |
| 882 | join: function join(separator) { |
| 883 | var sep = typeof separator === 'undefined' ? ',' : separator; |
| 884 | return originalJoin.call(this, sep); |
| 885 | } |
| 886 | }, hasJoinUndefinedBug); |
| 887 | } |
| 888 | |
| 889 | var pushShim = function push(item) { |
| 890 | var O = ES.ToObject(this); |
| 891 | var n = ES.ToUint32(O.length); |
| 892 | var i = 0; |
| 893 | while (i < arguments.length) { |
| 894 | O[n + i] = arguments[i]; |
| 895 | i += 1; |
| 896 | } |
| 897 | O.length = n + i; |
| 898 | return n + i; |
| 899 | }; |
| 900 | |
| 901 | var pushIsNotGeneric = (function () { |
| 902 | var obj = {}; |
| 903 | var result = Array.prototype.push.call(obj, undefined); |
| 904 | return result !== 1 || obj.length !== 1 || typeof obj[0] !== 'undefined' || !owns(obj, 0); |
| 905 | }()); |
| 906 | defineProperties(ArrayPrototype, { |
| 907 | push: function push(item) { |
| 908 | if (isArray(this)) { |
| 909 | return array_push.apply(this, arguments); |
| 910 | } |
| 911 | return pushShim.apply(this, arguments); |
| 912 | } |
| 913 | }, pushIsNotGeneric); |
| 914 | |
| 915 | // This fixes a very weird bug in Opera 10.6 when pushing `undefined |
| 916 | var pushUndefinedIsWeird = (function () { |
| 917 | var arr = []; |
| 918 | var result = arr.push(undefined); |
| 919 | return result !== 1 || arr.length !== 1 || typeof arr[0] !== 'undefined' || !owns(arr, 0); |
| 920 | }()); |
| 921 | defineProperties(ArrayPrototype, { push: pushShim }, pushUndefinedIsWeird); |
| 922 | |
| 923 | // ES5 15.2.3.14 |
| 924 | // http://es5.github.io/#x15.4.4.10 |
| 925 | // Fix boxed string bug |
| 926 | defineProperties(ArrayPrototype, { |
| 927 | slice: function (start, end) { |
| 928 | var arr = isString(this) ? strSplit(this, '') : this; |
| 929 | return arraySliceApply(arr, arguments); |
| 930 | } |
| 931 | }, splitString); |
| 932 | |
| 933 | var sortIgnoresNonFunctions = (function () { |
| 934 | try { |
| 935 | [1, 2].sort(null); |
| 936 | [1, 2].sort({}); |
| 937 | return true; |
| 938 | } catch (e) {} |
| 939 | return false; |
| 940 | }()); |
| 941 | var sortThrowsOnRegex = (function () { |
| 942 | // this is a problem in Firefox 4, in which `typeof /a/ === 'function'` |
| 943 | try { |
| 944 | [1, 2].sort(/a/); |
| 945 | return false; |
| 946 | } catch (e) {} |
| 947 | return true; |
| 948 | }()); |
| 949 | var sortIgnoresUndefined = (function () { |
| 950 | // applies in IE 8, for one. |
| 951 | try { |
| 952 | [1, 2].sort(undefined); |
| 953 | return true; |
| 954 | } catch (e) {} |
| 955 | return false; |
| 956 | }()); |
| 957 | defineProperties(ArrayPrototype, { |
| 958 | sort: function sort(compareFn) { |
| 959 | if (typeof compareFn === 'undefined') { |
| 960 | return arraySort(this); |
| 961 | } |
| 962 | if (!isCallable(compareFn)) { |
| 963 | throw new TypeError('Array.prototype.sort callback must be a function'); |
| 964 | } |
| 965 | return arraySort(this, compareFn); |
| 966 | } |
| 967 | }, sortIgnoresNonFunctions || !sortIgnoresUndefined || !sortThrowsOnRegex); |
| 968 | |
| 969 | // |
| 970 | // Object |
| 971 | // ====== |
| 972 | // |
| 973 | |
| 974 | // ES5 15.2.3.14 |
| 975 | // http://es5.github.com/#x15.2.3.14 |
| 976 | |
| 977 | // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation |
| 978 | var hasDontEnumBug = !isEnum({ 'toString': null }, 'toString'); |
| 979 | var hasProtoEnumBug = isEnum(function () {}, 'prototype'); |
| 980 | var hasStringEnumBug = !owns('x', '0'); |
| 981 | var equalsConstructorPrototype = function (o) { |
| 982 | var ctor = o.constructor; |
| 983 | return ctor && ctor.prototype === o; |
| 984 | }; |
| 985 | var blacklistedKeys = { |
| 986 | $window: true, |
| 987 | $console: true, |
| 988 | $parent: true, |
| 989 | $self: true, |
| 990 | $frame: true, |
| 991 | $frames: true, |
| 992 | $frameElement: true, |
| 993 | $webkitIndexedDB: true, |
| 994 | $webkitStorageInfo: true, |
| 995 | $external: true |
| 996 | }; |
| 997 | var hasAutomationEqualityBug = (function () { |
| 998 | /* globals window */ |
| 999 | if (typeof window === 'undefined') { |
| 1000 | return false; |
| 1001 | } |
| 1002 | for (var k in window) { |
| 1003 | try { |
| 1004 | if (!blacklistedKeys['$' + k] && owns(window, k) && window[k] !== null && typeof window[k] === 'object') { |
| 1005 | equalsConstructorPrototype(window[k]); |
| 1006 | } |
| 1007 | } catch (e) { |
| 1008 | return true; |
| 1009 | } |
| 1010 | } |
| 1011 | return false; |
| 1012 | }()); |
| 1013 | var equalsConstructorPrototypeIfNotBuggy = function (object) { |
| 1014 | if (typeof window === 'undefined' || !hasAutomationEqualityBug) { |
| 1015 | return equalsConstructorPrototype(object); |
| 1016 | } |
| 1017 | try { |
| 1018 | return equalsConstructorPrototype(object); |
| 1019 | } catch (e) { |
| 1020 | return false; |
| 1021 | } |
| 1022 | }; |
| 1023 | var dontEnums = [ |
| 1024 | 'toString', |
| 1025 | 'toLocaleString', |
| 1026 | 'valueOf', |
| 1027 | 'hasOwnProperty', |
| 1028 | 'isPrototypeOf', |
| 1029 | 'propertyIsEnumerable', |
| 1030 | 'constructor' |
| 1031 | ]; |
| 1032 | var dontEnumsLength = dontEnums.length; |
| 1033 | |
| 1034 | // taken directly from https://github.com/ljharb/is-arguments/blob/master/index.js |
| 1035 | // can be replaced with require('is-arguments') if we ever use a build process instead |
| 1036 | var isStandardArguments = function isArguments(value) { |
| 1037 | return toStr(value) === '[object Arguments]'; |
| 1038 | }; |
| 1039 | var isLegacyArguments = function isArguments(value) { |
| 1040 | return value !== null && |
| 1041 | typeof value === 'object' && |
| 1042 | typeof value.length === 'number' && |
| 1043 | value.length >= 0 && |
| 1044 | !isArray(value) && |
| 1045 | isCallable(value.callee); |
| 1046 | }; |
| 1047 | var isArguments = isStandardArguments(arguments) ? isStandardArguments : isLegacyArguments; |
| 1048 | |
| 1049 | defineProperties($Object, { |
| 1050 | keys: function keys(object) { |
| 1051 | var isFn = isCallable(object); |
| 1052 | var isArgs = isArguments(object); |
| 1053 | var isObject = object !== null && typeof object === 'object'; |
| 1054 | var isStr = isObject && isString(object); |
| 1055 | |
| 1056 | if (!isObject && !isFn && !isArgs) { |
| 1057 | throw new TypeError('Object.keys called on a non-object'); |
| 1058 | } |
| 1059 | |
| 1060 | var theKeys = []; |
| 1061 | var skipProto = hasProtoEnumBug && isFn; |
| 1062 | if ((isStr && hasStringEnumBug) || isArgs) { |
| 1063 | for (var i = 0; i < object.length; ++i) { |
| 1064 | pushCall(theKeys, $String(i)); |
| 1065 | } |
| 1066 | } |
| 1067 | |
| 1068 | if (!isArgs) { |
| 1069 | for (var name in object) { |
| 1070 | if (!(skipProto && name === 'prototype') && owns(object, name)) { |
| 1071 | pushCall(theKeys, $String(name)); |
| 1072 | } |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | if (hasDontEnumBug) { |
| 1077 | var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object); |
| 1078 | for (var j = 0; j < dontEnumsLength; j++) { |
| 1079 | var dontEnum = dontEnums[j]; |
| 1080 | if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) { |
| 1081 | pushCall(theKeys, dontEnum); |
| 1082 | } |
| 1083 | } |
| 1084 | } |
| 1085 | return theKeys; |
| 1086 | } |
| 1087 | }); |
| 1088 | |
| 1089 | var keysWorksWithArguments = $Object.keys && (function () { |
| 1090 | // Safari 5.0 bug |
| 1091 | return $Object.keys(arguments).length === 2; |
| 1092 | }(1, 2)); |
| 1093 | var keysHasArgumentsLengthBug = $Object.keys && (function () { |
| 1094 | var argKeys = $Object.keys(arguments); |
| 1095 | return arguments.length !== 1 || argKeys.length !== 1 || argKeys[0] !== 1; |
| 1096 | }(1)); |
| 1097 | var originalKeys = $Object.keys; |
| 1098 | defineProperties($Object, { |
| 1099 | keys: function keys(object) { |
| 1100 | if (isArguments(object)) { |
| 1101 | return originalKeys(arraySlice(object)); |
| 1102 | } else { |
| 1103 | return originalKeys(object); |
| 1104 | } |
| 1105 | } |
| 1106 | }, !keysWorksWithArguments || keysHasArgumentsLengthBug); |
| 1107 | |
| 1108 | // |
| 1109 | // Date |
| 1110 | // ==== |
| 1111 | // |
| 1112 | |
| 1113 | var hasNegativeMonthYearBug = new Date(-3509827329600292).getUTCMonth() !== 0; |
| 1114 | var aNegativeTestDate = new Date(-1509842289600292); |
| 1115 | var aPositiveTestDate = new Date(1449662400000); |
| 1116 | var hasToUTCStringFormatBug = aNegativeTestDate.toUTCString() !== 'Mon, 01 Jan -45875 11:59:59 GMT'; |
| 1117 | var hasToDateStringFormatBug; |
| 1118 | var hasToStringFormatBug; |
| 1119 | var timeZoneOffset = aNegativeTestDate.getTimezoneOffset(); |
| 1120 | if (timeZoneOffset < -720) { |
| 1121 | hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Tue Jan 02 -45875'; |
| 1122 | hasToStringFormatBug = !(/^Thu Dec 10 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString()); |
| 1123 | } else { |
| 1124 | hasToDateStringFormatBug = aNegativeTestDate.toDateString() !== 'Mon Jan 01 -45875'; |
| 1125 | hasToStringFormatBug = !(/^Wed Dec 09 2015 \d\d:\d\d:\d\d GMT[-\+]\d\d\d\d(?: |$)/).test(aPositiveTestDate.toString()); |
| 1126 | } |
| 1127 | |
| 1128 | var originalGetFullYear = call.bind(Date.prototype.getFullYear); |
| 1129 | var originalGetMonth = call.bind(Date.prototype.getMonth); |
| 1130 | var originalGetDate = call.bind(Date.prototype.getDate); |
| 1131 | var originalGetUTCFullYear = call.bind(Date.prototype.getUTCFullYear); |
| 1132 | var originalGetUTCMonth = call.bind(Date.prototype.getUTCMonth); |
| 1133 | var originalGetUTCDate = call.bind(Date.prototype.getUTCDate); |
| 1134 | var originalGetUTCDay = call.bind(Date.prototype.getUTCDay); |
| 1135 | var originalGetUTCHours = call.bind(Date.prototype.getUTCHours); |
| 1136 | var originalGetUTCMinutes = call.bind(Date.prototype.getUTCMinutes); |
| 1137 | var originalGetUTCSeconds = call.bind(Date.prototype.getUTCSeconds); |
| 1138 | var originalGetUTCMilliseconds = call.bind(Date.prototype.getUTCMilliseconds); |
| 1139 | var dayName = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; |
| 1140 | var monthName = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; |
| 1141 | var daysInMonth = function daysInMonth(month, year) { |
| 1142 | return originalGetDate(new Date(year, month, 0)); |
| 1143 | }; |
| 1144 | |
| 1145 | defineProperties(Date.prototype, { |
| 1146 | getFullYear: function getFullYear() { |
| 1147 | if (!this || !(this instanceof Date)) { |
| 1148 | throw new TypeError('this is not a Date object.'); |
| 1149 | } |
| 1150 | var year = originalGetFullYear(this); |
| 1151 | if (year < 0 && originalGetMonth(this) > 11) { |
| 1152 | return year + 1; |
| 1153 | } |
| 1154 | return year; |
| 1155 | }, |
| 1156 | getMonth: function getMonth() { |
| 1157 | if (!this || !(this instanceof Date)) { |
| 1158 | throw new TypeError('this is not a Date object.'); |
| 1159 | } |
| 1160 | var year = originalGetFullYear(this); |
| 1161 | var month = originalGetMonth(this); |
| 1162 | if (year < 0 && month > 11) { |
| 1163 | return 0; |
| 1164 | } |
| 1165 | return month; |
| 1166 | }, |
| 1167 | getDate: function getDate() { |
| 1168 | if (!this || !(this instanceof Date)) { |
| 1169 | throw new TypeError('this is not a Date object.'); |
| 1170 | } |
| 1171 | var year = originalGetFullYear(this); |
| 1172 | var month = originalGetMonth(this); |
| 1173 | var date = originalGetDate(this); |
| 1174 | if (year < 0 && month > 11) { |
| 1175 | if (month === 12) { |
| 1176 | return date; |
| 1177 | } |
| 1178 | var days = daysInMonth(0, year + 1); |
| 1179 | return (days - date) + 1; |
| 1180 | } |
| 1181 | return date; |
| 1182 | }, |
| 1183 | getUTCFullYear: function getUTCFullYear() { |
| 1184 | if (!this || !(this instanceof Date)) { |
| 1185 | throw new TypeError('this is not a Date object.'); |
| 1186 | } |
| 1187 | var year = originalGetUTCFullYear(this); |
| 1188 | if (year < 0 && originalGetUTCMonth(this) > 11) { |
| 1189 | return year + 1; |
| 1190 | } |
| 1191 | return year; |
| 1192 | }, |
| 1193 | getUTCMonth: function getUTCMonth() { |
| 1194 | if (!this || !(this instanceof Date)) { |
| 1195 | throw new TypeError('this is not a Date object.'); |
| 1196 | } |
| 1197 | var year = originalGetUTCFullYear(this); |
| 1198 | var month = originalGetUTCMonth(this); |
| 1199 | if (year < 0 && month > 11) { |
| 1200 | return 0; |
| 1201 | } |
| 1202 | return month; |
| 1203 | }, |
| 1204 | getUTCDate: function getUTCDate() { |
| 1205 | if (!this || !(this instanceof Date)) { |
| 1206 | throw new TypeError('this is not a Date object.'); |
| 1207 | } |
| 1208 | var year = originalGetUTCFullYear(this); |
| 1209 | var month = originalGetUTCMonth(this); |
| 1210 | var date = originalGetUTCDate(this); |
| 1211 | if (year < 0 && month > 11) { |
| 1212 | if (month === 12) { |
| 1213 | return date; |
| 1214 | } |
| 1215 | var days = daysInMonth(0, year + 1); |
| 1216 | return (days - date) + 1; |
| 1217 | } |
| 1218 | return date; |
| 1219 | } |
| 1220 | }, hasNegativeMonthYearBug); |
| 1221 | |
| 1222 | defineProperties(Date.prototype, { |
| 1223 | toUTCString: function toUTCString() { |
| 1224 | if (!this || !(this instanceof Date)) { |
| 1225 | throw new TypeError('this is not a Date object.'); |
| 1226 | } |
| 1227 | var day = originalGetUTCDay(this); |
| 1228 | var date = originalGetUTCDate(this); |
| 1229 | var month = originalGetUTCMonth(this); |
| 1230 | var year = originalGetUTCFullYear(this); |
| 1231 | var hour = originalGetUTCHours(this); |
| 1232 | var minute = originalGetUTCMinutes(this); |
| 1233 | var second = originalGetUTCSeconds(this); |
| 1234 | return dayName[day] + ', ' + |
| 1235 | (date < 10 ? '0' + date : date) + ' ' + |
| 1236 | monthName[month] + ' ' + |
| 1237 | year + ' ' + |
| 1238 | (hour < 10 ? '0' + hour : hour) + ':' + |
| 1239 | (minute < 10 ? '0' + minute : minute) + ':' + |
| 1240 | (second < 10 ? '0' + second : second) + ' GMT'; |
| 1241 | } |
| 1242 | }, hasNegativeMonthYearBug || hasToUTCStringFormatBug); |
| 1243 | |
| 1244 | // Opera 12 has `,` |
| 1245 | defineProperties(Date.prototype, { |
| 1246 | toDateString: function toDateString() { |
| 1247 | if (!this || !(this instanceof Date)) { |
| 1248 | throw new TypeError('this is not a Date object.'); |
| 1249 | } |
| 1250 | var day = this.getDay(); |
| 1251 | var date = this.getDate(); |
| 1252 | var month = this.getMonth(); |
| 1253 | var year = this.getFullYear(); |
| 1254 | return dayName[day] + ' ' + |
| 1255 | monthName[month] + ' ' + |
| 1256 | (date < 10 ? '0' + date : date) + ' ' + |
| 1257 | year; |
| 1258 | } |
| 1259 | }, hasNegativeMonthYearBug || hasToDateStringFormatBug); |
| 1260 | |
| 1261 | // can't use defineProperties here because of toString enumeration issue in IE <= 8 |
| 1262 | if (hasNegativeMonthYearBug || hasToStringFormatBug) { |
| 1263 | Date.prototype.toString = function toString() { |
| 1264 | if (!this || !(this instanceof Date)) { |
| 1265 | throw new TypeError('this is not a Date object.'); |
| 1266 | } |
| 1267 | var day = this.getDay(); |
| 1268 | var date = this.getDate(); |
| 1269 | var month = this.getMonth(); |
| 1270 | var year = this.getFullYear(); |
| 1271 | var hour = this.getHours(); |
| 1272 | var minute = this.getMinutes(); |
| 1273 | var second = this.getSeconds(); |
| 1274 | var timezoneOffset = this.getTimezoneOffset(); |
| 1275 | var hoursOffset = Math.floor(Math.abs(timezoneOffset) / 60); |
| 1276 | var minutesOffset = Math.floor(Math.abs(timezoneOffset) % 60); |
| 1277 | return dayName[day] + ' ' + |
| 1278 | monthName[month] + ' ' + |
| 1279 | (date < 10 ? '0' + date : date) + ' ' + |
| 1280 | year + ' ' + |
| 1281 | (hour < 10 ? '0' + hour : hour) + ':' + |
| 1282 | (minute < 10 ? '0' + minute : minute) + ':' + |
| 1283 | (second < 10 ? '0' + second : second) + ' GMT' + |
| 1284 | (timezoneOffset > 0 ? '-' : '+') + |
| 1285 | (hoursOffset < 10 ? '0' + hoursOffset : hoursOffset) + |
| 1286 | (minutesOffset < 10 ? '0' + minutesOffset : minutesOffset); |
| 1287 | }; |
| 1288 | if (supportsDescriptors) { |
| 1289 | $Object.defineProperty(Date.prototype, 'toString', { |
| 1290 | configurable: true, |
| 1291 | enumerable: false, |
| 1292 | writable: true |
| 1293 | }); |
| 1294 | } |
| 1295 | } |
| 1296 | |
| 1297 | // ES5 15.9.5.43 |
| 1298 | // http://es5.github.com/#x15.9.5.43 |
| 1299 | // This function returns a String value represent the instance in time |
| 1300 | // represented by this Date object. The format of the String is the Date Time |
| 1301 | // string format defined in 15.9.1.15. All fields are present in the String. |
| 1302 | // The time zone is always UTC, denoted by the suffix Z. If the time value of |
| 1303 | // this object is not a finite Number a RangeError exception is thrown. |
| 1304 | var negativeDate = -62198755200000; |
| 1305 | var negativeYearString = '-000001'; |
| 1306 | var hasNegativeDateBug = Date.prototype.toISOString && new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1; |
| 1307 | var hasSafari51DateBug = Date.prototype.toISOString && new Date(-1).toISOString() !== '1969-12-31T23:59:59.999Z'; |
| 1308 | |
| 1309 | var getTime = call.bind(Date.prototype.getTime); |
| 1310 | |
| 1311 | defineProperties(Date.prototype, { |
| 1312 | toISOString: function toISOString() { |
| 1313 | if (!isFinite(this) || !isFinite(getTime(this))) { |
| 1314 | // Adope Photoshop requires the second check. |
| 1315 | throw new RangeError('Date.prototype.toISOString called on non-finite value.'); |
| 1316 | } |
| 1317 | |
| 1318 | var year = originalGetUTCFullYear(this); |
| 1319 | |
| 1320 | var month = originalGetUTCMonth(this); |
| 1321 | // see https://github.com/es-shims/es5-shim/issues/111 |
| 1322 | year += Math.floor(month / 12); |
| 1323 | month = (month % 12 + 12) % 12; |
| 1324 | |
| 1325 | // the date time string format is specified in 15.9.1.15. |
| 1326 | var result = [month + 1, originalGetUTCDate(this), originalGetUTCHours(this), originalGetUTCMinutes(this), originalGetUTCSeconds(this)]; |
| 1327 | year = ( |
| 1328 | (year < 0 ? '-' : (year > 9999 ? '+' : '')) + |
| 1329 | strSlice('00000' + Math.abs(year), (0 <= year && year <= 9999) ? -4 : -6) |
| 1330 | ); |
| 1331 | |
| 1332 | for (var i = 0; i < result.length; ++i) { |
| 1333 | // pad months, days, hours, minutes, and seconds to have two digits. |
| 1334 | result[i] = strSlice('00' + result[i], -2); |
| 1335 | } |
| 1336 | // pad milliseconds to have three digits. |
| 1337 | return ( |
| 1338 | year + '-' + arraySlice(result, 0, 2).join('-') + |
| 1339 | 'T' + arraySlice(result, 2).join(':') + '.' + |
| 1340 | strSlice('000' + originalGetUTCMilliseconds(this), -3) + 'Z' |
| 1341 | ); |
| 1342 | } |
| 1343 | }, hasNegativeDateBug || hasSafari51DateBug); |
| 1344 | |
| 1345 | // ES5 15.9.5.44 |
| 1346 | // http://es5.github.com/#x15.9.5.44 |
| 1347 | // This function provides a String representation of a Date object for use by |
| 1348 | // JSON.stringify (15.12.3). |
| 1349 | var dateToJSONIsSupported = (function () { |
| 1350 | try { |
| 1351 | return Date.prototype.toJSON && |
| 1352 | new Date(NaN).toJSON() === null && |
| 1353 | new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 && |
| 1354 | Date.prototype.toJSON.call({ // generic |
| 1355 | toISOString: function () { return true; } |
| 1356 | }); |
| 1357 | } catch (e) { |
| 1358 | return false; |
| 1359 | } |
| 1360 | }()); |
| 1361 | if (!dateToJSONIsSupported) { |
| 1362 | Date.prototype.toJSON = function toJSON(key) { |
| 1363 | // When the toJSON method is called with argument key, the following |
| 1364 | // steps are taken: |
| 1365 | |
| 1366 | // 1. Let O be the result of calling ToObject, giving it the this |
| 1367 | // value as its argument. |
| 1368 | // 2. Let tv be ES.ToPrimitive(O, hint Number). |
| 1369 | var O = $Object(this); |
| 1370 | var tv = ES.ToPrimitive(O); |
| 1371 | // 3. If tv is a Number and is not finite, return null. |
| 1372 | if (typeof tv === 'number' && !isFinite(tv)) { |
| 1373 | return null; |
| 1374 | } |
| 1375 | // 4. Let toISO be the result of calling the [[Get]] internal method of |
| 1376 | // O with argument "toISOString". |
| 1377 | var toISO = O.toISOString; |
| 1378 | // 5. If IsCallable(toISO) is false, throw a TypeError exception. |
| 1379 | if (!isCallable(toISO)) { |
| 1380 | throw new TypeError('toISOString property is not callable'); |
| 1381 | } |
| 1382 | // 6. Return the result of calling the [[Call]] internal method of |
| 1383 | // toISO with O as the this value and an empty argument list. |
| 1384 | return toISO.call(O); |
| 1385 | |
| 1386 | // NOTE 1 The argument is ignored. |
| 1387 | |
| 1388 | // NOTE 2 The toJSON function is intentionally generic; it does not |
| 1389 | // require that its this value be a Date object. Therefore, it can be |
| 1390 | // transferred to other kinds of objects for use as a method. However, |
| 1391 | // it does require that any such object have a toISOString method. An |
| 1392 | // object is free to use the argument key to filter its |
| 1393 | // stringification. |
| 1394 | }; |
| 1395 | } |
| 1396 | |
| 1397 | // ES5 15.9.4.2 |
| 1398 | // http://es5.github.com/#x15.9.4.2 |
| 1399 | // based on work shared by Daniel Friesen (dantman) |
| 1400 | // http://gist.github.com/303249 |
| 1401 | var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15; |
| 1402 | var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z')) || !isNaN(Date.parse('2012-12-31T23:59:60.000Z')); |
| 1403 | var doesNotParseY2KNewYear = isNaN(Date.parse('2000-01-01T00:00:00.000Z')); |
| 1404 | if (doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) { |
| 1405 | // XXX global assignment won't work in embeddings that use |
| 1406 | // an alternate object for the context. |
| 1407 | /* global Date: true */ |
| 1408 | /* eslint-disable no-undef */ |
| 1409 | var maxSafeUnsigned32Bit = Math.pow(2, 31) - 1; |
| 1410 | var hasSafariSignedIntBug = isActualNaN(new Date(1970, 0, 1, 0, 0, 0, maxSafeUnsigned32Bit + 1).getTime()); |
| 1411 | /* eslint-disable no-implicit-globals */ |
| 1412 | Date = (function (NativeDate) { |
| 1413 | /* eslint-enable no-implicit-globals */ |
| 1414 | /* eslint-enable no-undef */ |
| 1415 | // Date.length === 7 |
| 1416 | var DateShim = function Date(Y, M, D, h, m, s, ms) { |
| 1417 | var length = arguments.length; |
| 1418 | var date; |
| 1419 | if (this instanceof NativeDate) { |
| 1420 | var seconds = s; |
| 1421 | var millis = ms; |
| 1422 | if (hasSafariSignedIntBug && length >= 7 && ms > maxSafeUnsigned32Bit) { |
| 1423 | // work around a Safari 8/9 bug where it treats the seconds as signed |
| 1424 | var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit; |
| 1425 | var sToShift = Math.floor(msToShift / 1e3); |
| 1426 | seconds += sToShift; |
| 1427 | millis -= sToShift * 1e3; |
| 1428 | } |
| 1429 | date = length === 1 && $String(Y) === Y ? // isString(Y) |
| 1430 | // We explicitly pass it through parse: |
| 1431 | new NativeDate(DateShim.parse(Y)) : |
| 1432 | // We have to manually make calls depending on argument |
| 1433 | // length here |
| 1434 | length >= 7 ? new NativeDate(Y, M, D, h, m, seconds, millis) : |
| 1435 | length >= 6 ? new NativeDate(Y, M, D, h, m, seconds) : |
| 1436 | length >= 5 ? new NativeDate(Y, M, D, h, m) : |
| 1437 | length >= 4 ? new NativeDate(Y, M, D, h) : |
| 1438 | length >= 3 ? new NativeDate(Y, M, D) : |
| 1439 | length >= 2 ? new NativeDate(Y, M) : |
| 1440 | length >= 1 ? new NativeDate(Y instanceof NativeDate ? +Y : Y) : |
| 1441 | new NativeDate(); |
| 1442 | } else { |
| 1443 | date = NativeDate.apply(this, arguments); |
| 1444 | } |
| 1445 | if (!isPrimitive(date)) { |
| 1446 | // Prevent mixups with unfixed Date object |
| 1447 | defineProperties(date, { constructor: DateShim }, true); |
| 1448 | } |
| 1449 | return date; |
| 1450 | }; |
| 1451 | |
| 1452 | // 15.9.1.15 Date Time String Format. |
| 1453 | var isoDateExpression = new RegExp('^' + |
| 1454 | '(\\d{4}|[+-]\\d{6})' + // four-digit year capture or sign + |
| 1455 | // 6-digit extended year |
| 1456 | '(?:-(\\d{2})' + // optional month capture |
| 1457 | '(?:-(\\d{2})' + // optional day capture |
| 1458 | '(?:' + // capture hours:minutes:seconds.milliseconds |
| 1459 | 'T(\\d{2})' + // hours capture |
| 1460 | ':(\\d{2})' + // minutes capture |
| 1461 | '(?:' + // optional :seconds.milliseconds |
| 1462 | ':(\\d{2})' + // seconds capture |
| 1463 | '(?:(\\.\\d{1,}))?' + // milliseconds capture |
| 1464 | ')?' + |
| 1465 | '(' + // capture UTC offset component |
| 1466 | 'Z|' + // UTC capture |
| 1467 | '(?:' + // offset specifier +/-hours:minutes |
| 1468 | '([-+])' + // sign capture |
| 1469 | '(\\d{2})' + // hours offset capture |
| 1470 | ':(\\d{2})' + // minutes offset capture |
| 1471 | ')' + |
| 1472 | ')?)?)?)?' + |
| 1473 | '$'); |
| 1474 | |
| 1475 | var months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365]; |
| 1476 | |
| 1477 | var dayFromMonth = function dayFromMonth(year, month) { |
| 1478 | var t = month > 1 ? 1 : 0; |
| 1479 | return ( |
| 1480 | months[month] + |
| 1481 | Math.floor((year - 1969 + t) / 4) - |
| 1482 | Math.floor((year - 1901 + t) / 100) + |
| 1483 | Math.floor((year - 1601 + t) / 400) + |
| 1484 | 365 * (year - 1970) |
| 1485 | ); |
| 1486 | }; |
| 1487 | |
| 1488 | var toUTC = function toUTC(t) { |
| 1489 | var s = 0; |
| 1490 | var ms = t; |
| 1491 | if (hasSafariSignedIntBug && ms > maxSafeUnsigned32Bit) { |
| 1492 | // work around a Safari 8/9 bug where it treats the seconds as signed |
| 1493 | var msToShift = Math.floor(ms / maxSafeUnsigned32Bit) * maxSafeUnsigned32Bit; |
| 1494 | var sToShift = Math.floor(msToShift / 1e3); |
| 1495 | s += sToShift; |
| 1496 | ms -= sToShift * 1e3; |
| 1497 | } |
| 1498 | return $Number(new NativeDate(1970, 0, 1, 0, 0, s, ms)); |
| 1499 | }; |
| 1500 | |
| 1501 | // Copy any custom methods a 3rd party library may have added |
| 1502 | for (var key in NativeDate) { |
| 1503 | if (owns(NativeDate, key)) { |
| 1504 | DateShim[key] = NativeDate[key]; |
| 1505 | } |
| 1506 | } |
| 1507 | |
| 1508 | // Copy "native" methods explicitly; they may be non-enumerable |
| 1509 | defineProperties(DateShim, { |
| 1510 | now: NativeDate.now, |
| 1511 | UTC: NativeDate.UTC |
| 1512 | }, true); |
| 1513 | DateShim.prototype = NativeDate.prototype; |
| 1514 | defineProperties(DateShim.prototype, { |
| 1515 | constructor: DateShim |
| 1516 | }, true); |
| 1517 | |
| 1518 | // Upgrade Date.parse to handle simplified ISO 8601 strings |
| 1519 | var parseShim = function parse(string) { |
| 1520 | var match = isoDateExpression.exec(string); |
| 1521 | if (match) { |
| 1522 | // parse months, days, hours, minutes, seconds, and milliseconds |
| 1523 | // provide default values if necessary |
| 1524 | // parse the UTC offset component |
| 1525 | var year = $Number(match[1]), |
| 1526 | month = $Number(match[2] || 1) - 1, |
| 1527 | day = $Number(match[3] || 1) - 1, |
| 1528 | hour = $Number(match[4] || 0), |
| 1529 | minute = $Number(match[5] || 0), |
| 1530 | second = $Number(match[6] || 0), |
| 1531 | millisecond = Math.floor($Number(match[7] || 0) * 1000), |
| 1532 | // When time zone is missed, local offset should be used |
| 1533 | // (ES 5.1 bug) |
| 1534 | // see https://bugs.ecmascript.org/show_bug.cgi?id=112 |
| 1535 | isLocalTime = Boolean(match[4] && !match[8]), |
| 1536 | signOffset = match[9] === '-' ? 1 : -1, |
| 1537 | hourOffset = $Number(match[10] || 0), |
| 1538 | minuteOffset = $Number(match[11] || 0), |
| 1539 | result; |
| 1540 | var hasMinutesOrSecondsOrMilliseconds = minute > 0 || second > 0 || millisecond > 0; |
| 1541 | if ( |
| 1542 | hour < (hasMinutesOrSecondsOrMilliseconds ? 24 : 25) && |
| 1543 | minute < 60 && second < 60 && millisecond < 1000 && |
| 1544 | month > -1 && month < 12 && hourOffset < 24 && |
| 1545 | minuteOffset < 60 && // detect invalid offsets |
| 1546 | day > -1 && |
| 1547 | day < (dayFromMonth(year, month + 1) - dayFromMonth(year, month)) |
| 1548 | ) { |
| 1549 | result = ( |
| 1550 | (dayFromMonth(year, month) + day) * 24 + |
| 1551 | hour + |
| 1552 | hourOffset * signOffset |
| 1553 | ) * 60; |
| 1554 | result = ( |
| 1555 | (result + minute + minuteOffset * signOffset) * 60 + |
| 1556 | second |
| 1557 | ) * 1000 + millisecond; |
| 1558 | if (isLocalTime) { |
| 1559 | result = toUTC(result); |
| 1560 | } |
| 1561 | if (-8.64e15 <= result && result <= 8.64e15) { |
| 1562 | return result; |
| 1563 | } |
| 1564 | } |
| 1565 | return NaN; |
| 1566 | } |
| 1567 | return NativeDate.parse.apply(this, arguments); |
| 1568 | }; |
| 1569 | defineProperties(DateShim, { parse: parseShim }); |
| 1570 | |
| 1571 | return DateShim; |
| 1572 | }(Date)); |
| 1573 | /* global Date: false */ |
| 1574 | } |
| 1575 | |
| 1576 | // ES5 15.9.4.4 |
| 1577 | // http://es5.github.com/#x15.9.4.4 |
| 1578 | if (!Date.now) { |
| 1579 | Date.now = function now() { |
| 1580 | return new Date().getTime(); |
| 1581 | }; |
| 1582 | } |
| 1583 | |
| 1584 | // |
| 1585 | // Number |
| 1586 | // ====== |
| 1587 | // |
| 1588 | |
| 1589 | // ES5.1 15.7.4.5 |
| 1590 | // http://es5.github.com/#x15.7.4.5 |
| 1591 | var hasToFixedBugs = NumberPrototype.toFixed && ( |
| 1592 | (0.00008).toFixed(3) !== '0.000' || |
| 1593 | (0.9).toFixed(0) !== '1' || |
| 1594 | (1.255).toFixed(2) !== '1.25' || |
| 1595 | (1000000000000000128).toFixed(0) !== '1000000000000000128' |
| 1596 | ); |
| 1597 | |
| 1598 | var toFixedHelpers = { |
| 1599 | base: 1e7, |
| 1600 | size: 6, |
| 1601 | data: [0, 0, 0, 0, 0, 0], |
| 1602 | multiply: function multiply(n, c) { |
| 1603 | var i = -1; |
| 1604 | var c2 = c; |
| 1605 | while (++i < toFixedHelpers.size) { |
| 1606 | c2 += n * toFixedHelpers.data[i]; |
| 1607 | toFixedHelpers.data[i] = c2 % toFixedHelpers.base; |
| 1608 | c2 = Math.floor(c2 / toFixedHelpers.base); |
| 1609 | } |
| 1610 | }, |
| 1611 | divide: function divide(n) { |
| 1612 | var i = toFixedHelpers.size; |
| 1613 | var c = 0; |
| 1614 | while (--i >= 0) { |
| 1615 | c += toFixedHelpers.data[i]; |
| 1616 | toFixedHelpers.data[i] = Math.floor(c / n); |
| 1617 | c = (c % n) * toFixedHelpers.base; |
| 1618 | } |
| 1619 | }, |
| 1620 | numToString: function numToString() { |
| 1621 | var i = toFixedHelpers.size; |
| 1622 | var s = ''; |
| 1623 | while (--i >= 0) { |
| 1624 | if (s !== '' || i === 0 || toFixedHelpers.data[i] !== 0) { |
| 1625 | var t = $String(toFixedHelpers.data[i]); |
| 1626 | if (s === '') { |
| 1627 | s = t; |
| 1628 | } else { |
| 1629 | s += strSlice('0000000', 0, 7 - t.length) + t; |
| 1630 | } |
| 1631 | } |
| 1632 | } |
| 1633 | return s; |
| 1634 | }, |
| 1635 | pow: function pow(x, n, acc) { |
| 1636 | return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc))); |
| 1637 | }, |
| 1638 | log: function log(x) { |
| 1639 | var n = 0; |
| 1640 | var x2 = x; |
| 1641 | while (x2 >= 4096) { |
| 1642 | n += 12; |
| 1643 | x2 /= 4096; |
| 1644 | } |
| 1645 | while (x2 >= 2) { |
| 1646 | n += 1; |
| 1647 | x2 /= 2; |
| 1648 | } |
| 1649 | return n; |
| 1650 | } |
| 1651 | }; |
| 1652 | |
| 1653 | var toFixedShim = function toFixed(fractionDigits) { |
| 1654 | var f, x, s, m, e, z, j, k; |
| 1655 | |
| 1656 | // Test for NaN and round fractionDigits down |
| 1657 | f = $Number(fractionDigits); |
| 1658 | f = isActualNaN(f) ? 0 : Math.floor(f); |
| 1659 | |
| 1660 | if (f < 0 || f > 20) { |
| 1661 | throw new RangeError('Number.toFixed called with invalid number of decimals'); |
| 1662 | } |
| 1663 | |
| 1664 | x = $Number(this); |
| 1665 | |
| 1666 | if (isActualNaN(x)) { |
| 1667 | return 'NaN'; |
| 1668 | } |
| 1669 | |
| 1670 | // If it is too big or small, return the string value of the number |
| 1671 | if (x <= -1e21 || x >= 1e21) { |
| 1672 | return $String(x); |
| 1673 | } |
| 1674 | |
| 1675 | s = ''; |
| 1676 | |
| 1677 | if (x < 0) { |
| 1678 | s = '-'; |
| 1679 | x = -x; |
| 1680 | } |
| 1681 | |
| 1682 | m = '0'; |
| 1683 | |
| 1684 | if (x > 1e-21) { |
| 1685 | // 1e-21 < x < 1e21 |
| 1686 | // -70 < log2(x) < 70 |
| 1687 | e = toFixedHelpers.log(x * toFixedHelpers.pow(2, 69, 1)) - 69; |
| 1688 | z = (e < 0 ? x * toFixedHelpers.pow(2, -e, 1) : x / toFixedHelpers.pow(2, e, 1)); |
| 1689 | z *= 0x10000000000000; // Math.pow(2, 52); |
| 1690 | e = 52 - e; |
| 1691 | |
| 1692 | // -18 < e < 122 |
| 1693 | // x = z / 2 ^ e |
| 1694 | if (e > 0) { |
| 1695 | toFixedHelpers.multiply(0, z); |
| 1696 | j = f; |
| 1697 | |
| 1698 | while (j >= 7) { |
| 1699 | toFixedHelpers.multiply(1e7, 0); |
| 1700 | j -= 7; |
| 1701 | } |
| 1702 | |
| 1703 | toFixedHelpers.multiply(toFixedHelpers.pow(10, j, 1), 0); |
| 1704 | j = e - 1; |
| 1705 | |
| 1706 | while (j >= 23) { |
| 1707 | toFixedHelpers.divide(1 << 23); |
| 1708 | j -= 23; |
| 1709 | } |
| 1710 | |
| 1711 | toFixedHelpers.divide(1 << j); |
| 1712 | toFixedHelpers.multiply(1, 1); |
| 1713 | toFixedHelpers.divide(2); |
| 1714 | m = toFixedHelpers.numToString(); |
| 1715 | } else { |
| 1716 | toFixedHelpers.multiply(0, z); |
| 1717 | toFixedHelpers.multiply(1 << (-e), 0); |
| 1718 | m = toFixedHelpers.numToString() + strSlice('0.00000000000000000000', 2, 2 + f); |
| 1719 | } |
| 1720 | } |
| 1721 | |
| 1722 | if (f > 0) { |
| 1723 | k = m.length; |
| 1724 | |
| 1725 | if (k <= f) { |
| 1726 | m = s + strSlice('0.0000000000000000000', 0, f - k + 2) + m; |
| 1727 | } else { |
| 1728 | m = s + strSlice(m, 0, k - f) + '.' + strSlice(m, k - f); |
| 1729 | } |
| 1730 | } else { |
| 1731 | m = s + m; |
| 1732 | } |
| 1733 | |
| 1734 | return m; |
| 1735 | }; |
| 1736 | defineProperties(NumberPrototype, { toFixed: toFixedShim }, hasToFixedBugs); |
| 1737 | |
| 1738 | var hasToPrecisionUndefinedBug = (function () { |
| 1739 | try { |
| 1740 | return 1.0.toPrecision(undefined) === '1'; |
| 1741 | } catch (e) { |
| 1742 | return true; |
| 1743 | } |
| 1744 | }()); |
| 1745 | var originalToPrecision = NumberPrototype.toPrecision; |
| 1746 | defineProperties(NumberPrototype, { |
| 1747 | toPrecision: function toPrecision(precision) { |
| 1748 | return typeof precision === 'undefined' ? originalToPrecision.call(this) : originalToPrecision.call(this, precision); |
| 1749 | } |
| 1750 | }, hasToPrecisionUndefinedBug); |
| 1751 | |
| 1752 | // |
| 1753 | // String |
| 1754 | // ====== |
| 1755 | // |
| 1756 | |
| 1757 | // ES5 15.5.4.14 |
| 1758 | // http://es5.github.com/#x15.5.4.14 |
| 1759 | |
| 1760 | // [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers] |
| 1761 | // Many browsers do not split properly with regular expressions or they |
| 1762 | // do not perform the split correctly under obscure conditions. |
| 1763 | // See http://blog.stevenlevithan.com/archives/cross-browser-split |
| 1764 | // I've tested in many browsers and this seems to cover the deviant ones: |
| 1765 | // 'ab'.split(/(?:ab)*/) should be ["", ""], not [""] |
| 1766 | // '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""] |
| 1767 | // 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not |
| 1768 | // [undefined, "t", undefined, "e", ...] |
| 1769 | // ''.split(/.?/) should be [], not [""] |
| 1770 | // '.'.split(/()()/) should be ["."], not ["", "", "."] |
| 1771 | |
| 1772 | if ( |
| 1773 | 'ab'.split(/(?:ab)*/).length !== 2 || |
| 1774 | '.'.split(/(.?)(.?)/).length !== 4 || |
| 1775 | 'tesst'.split(/(s)*/)[1] === 't' || |
| 1776 | 'test'.split(/(?:)/, -1).length !== 4 || |
| 1777 | ''.split(/.?/).length || |
| 1778 | '.'.split(/()()/).length > 1 |
| 1779 | ) { |
| 1780 | (function () { |
| 1781 | var compliantExecNpcg = typeof (/()??/).exec('')[1] === 'undefined'; // NPCG: nonparticipating capturing group |
| 1782 | var maxSafe32BitInt = Math.pow(2, 32) - 1; |
| 1783 | |
| 1784 | StringPrototype.split = function (separator, limit) { |
| 1785 | var string = String(this); |
| 1786 | if (typeof separator === 'undefined' && limit === 0) { |
| 1787 | return []; |
| 1788 | } |
| 1789 | |
| 1790 | // If `separator` is not a regex, use native split |
| 1791 | if (!isRegex(separator)) { |
| 1792 | return strSplit(this, separator, limit); |
| 1793 | } |
| 1794 | |
| 1795 | var output = []; |
| 1796 | var flags = (separator.ignoreCase ? 'i' : '') + |
| 1797 | (separator.multiline ? 'm' : '') + |
| 1798 | (separator.unicode ? 'u' : '') + // in ES6 |
| 1799 | (separator.sticky ? 'y' : ''), // Firefox 3+ and ES6 |
| 1800 | lastLastIndex = 0, |
| 1801 | // Make `global` and avoid `lastIndex` issues by working with a copy |
| 1802 | separator2, match, lastIndex, lastLength; |
| 1803 | var separatorCopy = new RegExp(separator.source, flags + 'g'); |
| 1804 | if (!compliantExecNpcg) { |
| 1805 | // Doesn't need flags gy, but they don't hurt |
| 1806 | separator2 = new RegExp('^' + separatorCopy.source + '$(?!\\s)', flags); |
| 1807 | } |
| 1808 | /* Values for `limit`, per the spec: |
| 1809 | * If undefined: 4294967295 // maxSafe32BitInt |
| 1810 | * If 0, Infinity, or NaN: 0 |
| 1811 | * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296; |
| 1812 | * If negative number: 4294967296 - Math.floor(Math.abs(limit)) |
| 1813 | * If other: Type-convert, then use the above rules |
| 1814 | */ |
| 1815 | var splitLimit = typeof limit === 'undefined' ? maxSafe32BitInt : ES.ToUint32(limit); |
| 1816 | match = separatorCopy.exec(string); |
| 1817 | while (match) { |
| 1818 | // `separatorCopy.lastIndex` is not reliable cross-browser |
| 1819 | lastIndex = match.index + match[0].length; |
| 1820 | if (lastIndex > lastLastIndex) { |
| 1821 | pushCall(output, strSlice(string, lastLastIndex, match.index)); |
| 1822 | // Fix browsers whose `exec` methods don't consistently return `undefined` for |
| 1823 | // nonparticipating capturing groups |
| 1824 | if (!compliantExecNpcg && match.length > 1) { |
| 1825 | /* eslint-disable no-loop-func */ |
| 1826 | match[0].replace(separator2, function () { |
| 1827 | for (var i = 1; i < arguments.length - 2; i++) { |
| 1828 | if (typeof arguments[i] === 'undefined') { |
| 1829 | match[i] = void 0; |
| 1830 | } |
| 1831 | } |
| 1832 | }); |
| 1833 | /* eslint-enable no-loop-func */ |
| 1834 | } |
| 1835 | if (match.length > 1 && match.index < string.length) { |
| 1836 | array_push.apply(output, arraySlice(match, 1)); |
| 1837 | } |
| 1838 | lastLength = match[0].length; |
| 1839 | lastLastIndex = lastIndex; |
| 1840 | if (output.length >= splitLimit) { |
| 1841 | break; |
| 1842 | } |
| 1843 | } |
| 1844 | if (separatorCopy.lastIndex === match.index) { |
| 1845 | separatorCopy.lastIndex++; // Avoid an infinite loop |
| 1846 | } |
| 1847 | match = separatorCopy.exec(string); |
| 1848 | } |
| 1849 | if (lastLastIndex === string.length) { |
| 1850 | if (lastLength || !separatorCopy.test('')) { |
| 1851 | pushCall(output, ''); |
| 1852 | } |
| 1853 | } else { |
| 1854 | pushCall(output, strSlice(string, lastLastIndex)); |
| 1855 | } |
| 1856 | return output.length > splitLimit ? arraySlice(output, 0, splitLimit) : output; |
| 1857 | }; |
| 1858 | }()); |
| 1859 | |
| 1860 | // [bugfix, chrome] |
| 1861 | // If separator is undefined, then the result array contains just one String, |
| 1862 | // which is the this value (converted to a String). If limit is not undefined, |
| 1863 | // then the output array is truncated so that it contains no more than limit |
| 1864 | // elements. |
| 1865 | // "0".split(undefined, 0) -> [] |
| 1866 | } else if ('0'.split(void 0, 0).length) { |
| 1867 | StringPrototype.split = function split(separator, limit) { |
| 1868 | if (typeof separator === 'undefined' && limit === 0) { |
| 1869 | return []; |
| 1870 | } |
| 1871 | return strSplit(this, separator, limit); |
| 1872 | }; |
| 1873 | } |
| 1874 | |
| 1875 | var str_replace = StringPrototype.replace; |
| 1876 | var replaceReportsGroupsCorrectly = (function () { |
| 1877 | var groups = []; |
| 1878 | 'x'.replace(/x(.)?/g, function (match, group) { |
| 1879 | pushCall(groups, group); |
| 1880 | }); |
| 1881 | return groups.length === 1 && typeof groups[0] === 'undefined'; |
| 1882 | }()); |
| 1883 | |
| 1884 | if (!replaceReportsGroupsCorrectly) { |
| 1885 | StringPrototype.replace = function replace(searchValue, replaceValue) { |
| 1886 | var isFn = isCallable(replaceValue); |
| 1887 | var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source); |
| 1888 | if (!isFn || !hasCapturingGroups) { |
| 1889 | return str_replace.call(this, searchValue, replaceValue); |
| 1890 | } else { |
| 1891 | var wrappedReplaceValue = function (match) { |
| 1892 | var length = arguments.length; |
| 1893 | var originalLastIndex = searchValue.lastIndex; |
| 1894 | searchValue.lastIndex = 0; |
| 1895 | var args = searchValue.exec(match) || []; |
| 1896 | searchValue.lastIndex = originalLastIndex; |
| 1897 | pushCall(args, arguments[length - 2], arguments[length - 1]); |
| 1898 | return replaceValue.apply(this, args); |
| 1899 | }; |
| 1900 | return str_replace.call(this, searchValue, wrappedReplaceValue); |
| 1901 | } |
| 1902 | }; |
| 1903 | } |
| 1904 | |
| 1905 | // ECMA-262, 3rd B.2.3 |
| 1906 | // Not an ECMAScript standard, although ECMAScript 3rd Edition has a |
| 1907 | // non-normative section suggesting uniform semantics and it should be |
| 1908 | // normalized across all browsers |
| 1909 | // [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE |
| 1910 | var string_substr = StringPrototype.substr; |
| 1911 | var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b'; |
| 1912 | defineProperties(StringPrototype, { |
| 1913 | substr: function substr(start, length) { |
| 1914 | var normalizedStart = start; |
| 1915 | if (start < 0) { |
| 1916 | normalizedStart = max(this.length + start, 0); |
| 1917 | } |
| 1918 | return string_substr.call(this, normalizedStart, length); |
| 1919 | } |
| 1920 | }, hasNegativeSubstrBug); |
| 1921 | |
| 1922 | // ES5 15.5.4.20 |
| 1923 | // whitespace from: http://es5.github.io/#x15.5.4.20 |
| 1924 | var ws = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' + |
| 1925 | '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028' + |
| 1926 | '\u2029\uFEFF'; |
| 1927 | var zeroWidth = '\u200b'; |
| 1928 | var wsRegexChars = '[' + ws + ']'; |
| 1929 | var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*'); |
| 1930 | var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$'); |
| 1931 | var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim()); |
| 1932 | defineProperties(StringPrototype, { |
| 1933 | // http://blog.stevenlevithan.com/archives/faster-trim-javascript |
| 1934 | // http://perfectionkills.com/whitespace-deviations/ |
| 1935 | trim: function trim() { |
| 1936 | if (typeof this === 'undefined' || this === null) { |
| 1937 | throw new TypeError("can't convert " + this + ' to object'); |
| 1938 | } |
| 1939 | return $String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, ''); |
| 1940 | } |
| 1941 | }, hasTrimWhitespaceBug); |
| 1942 | var trim = call.bind(String.prototype.trim); |
| 1943 | |
| 1944 | var hasLastIndexBug = StringPrototype.lastIndexOf && 'abcあい'.lastIndexOf('あい', 2) !== -1; |
| 1945 | defineProperties(StringPrototype, { |
| 1946 | lastIndexOf: function lastIndexOf(searchString) { |
| 1947 | if (typeof this === 'undefined' || this === null) { |
| 1948 | throw new TypeError("can't convert " + this + ' to object'); |
| 1949 | } |
| 1950 | var S = $String(this); |
| 1951 | var searchStr = $String(searchString); |
| 1952 | var numPos = arguments.length > 1 ? $Number(arguments[1]) : NaN; |
| 1953 | var pos = isActualNaN(numPos) ? Infinity : ES.ToInteger(numPos); |
| 1954 | var start = min(max(pos, 0), S.length); |
| 1955 | var searchLen = searchStr.length; |
| 1956 | var k = start + searchLen; |
| 1957 | while (k > 0) { |
| 1958 | k = max(0, k - searchLen); |
| 1959 | var index = strIndexOf(strSlice(S, k, start + searchLen), searchStr); |
| 1960 | if (index !== -1) { |
| 1961 | return k + index; |
| 1962 | } |
| 1963 | } |
| 1964 | return -1; |
| 1965 | } |
| 1966 | }, hasLastIndexBug); |
| 1967 | |
| 1968 | var originalLastIndexOf = StringPrototype.lastIndexOf; |
| 1969 | defineProperties(StringPrototype, { |
| 1970 | lastIndexOf: function lastIndexOf(searchString) { |
| 1971 | return originalLastIndexOf.apply(this, arguments); |
| 1972 | } |
| 1973 | }, StringPrototype.lastIndexOf.length !== 1); |
| 1974 | |
| 1975 | // ES-5 15.1.2.2 |
| 1976 | /* eslint-disable radix */ |
| 1977 | if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) { |
| 1978 | /* eslint-enable radix */ |
| 1979 | /* global parseInt: true */ |
| 1980 | parseInt = (function (origParseInt) { |
| 1981 | var hexRegex = /^[\-+]?0[xX]/; |
| 1982 | return function parseInt(str, radix) { |
| 1983 | var string = trim(String(str)); |
| 1984 | var defaultedRadix = $Number(radix) || (hexRegex.test(string) ? 16 : 10); |
| 1985 | return origParseInt(string, defaultedRadix); |
| 1986 | }; |
| 1987 | }(parseInt)); |
| 1988 | } |
| 1989 | |
| 1990 | // https://es5.github.io/#x15.1.2.3 |
| 1991 | if (1 / parseFloat('-0') !== -Infinity) { |
| 1992 | /* global parseFloat: true */ |
| 1993 | parseFloat = (function (origParseFloat) { |
| 1994 | return function parseFloat(string) { |
| 1995 | var inputString = trim(String(string)); |
| 1996 | var result = origParseFloat(inputString); |
| 1997 | return result === 0 && strSlice(inputString, 0, 1) === '-' ? -0 : result; |
| 1998 | }; |
| 1999 | }(parseFloat)); |
| 2000 | } |
| 2001 | |
| 2002 | if (String(new RangeError('test')) !== 'RangeError: test') { |
| 2003 | var errorToStringShim = function toString() { |
| 2004 | if (typeof this === 'undefined' || this === null) { |
| 2005 | throw new TypeError("can't convert " + this + ' to object'); |
| 2006 | } |
| 2007 | var name = this.name; |
| 2008 | if (typeof name === 'undefined') { |
| 2009 | name = 'Error'; |
| 2010 | } else if (typeof name !== 'string') { |
| 2011 | name = $String(name); |
| 2012 | } |
| 2013 | var msg = this.message; |
| 2014 | if (typeof msg === 'undefined') { |
| 2015 | msg = ''; |
| 2016 | } else if (typeof msg !== 'string') { |
| 2017 | msg = $String(msg); |
| 2018 | } |
| 2019 | if (!name) { |
| 2020 | return msg; |
| 2021 | } |
| 2022 | if (!msg) { |
| 2023 | return name; |
| 2024 | } |
| 2025 | return name + ': ' + msg; |
| 2026 | }; |
| 2027 | // can't use defineProperties here because of toString enumeration issue in IE <= 8 |
| 2028 | Error.prototype.toString = errorToStringShim; |
| 2029 | } |
| 2030 | |
| 2031 | if (supportsDescriptors) { |
| 2032 | var ensureNonEnumerable = function (obj, prop) { |
| 2033 | if (isEnum(obj, prop)) { |
| 2034 | var desc = Object.getOwnPropertyDescriptor(obj, prop); |
| 2035 | if (desc.configurable) { |
| 2036 | desc.enumerable = false; |
| 2037 | Object.defineProperty(obj, prop, desc); |
| 2038 | } |
| 2039 | } |
| 2040 | }; |
| 2041 | ensureNonEnumerable(Error.prototype, 'message'); |
| 2042 | if (Error.prototype.message !== '') { |
| 2043 | Error.prototype.message = ''; |
| 2044 | } |
| 2045 | ensureNonEnumerable(Error.prototype, 'name'); |
| 2046 | } |
| 2047 | |
| 2048 | if (String(/a/mig) !== '/a/gim') { |
| 2049 | var regexToString = function toString() { |
| 2050 | var str = '/' + this.source + '/'; |
| 2051 | if (this.global) { |
| 2052 | str += 'g'; |
| 2053 | } |
| 2054 | if (this.ignoreCase) { |
| 2055 | str += 'i'; |
| 2056 | } |
| 2057 | if (this.multiline) { |
| 2058 | str += 'm'; |
| 2059 | } |
| 2060 | return str; |
| 2061 | }; |
| 2062 | // can't use defineProperties here because of toString enumeration issue in IE <= 8 |
| 2063 | RegExp.prototype.toString = regexToString; |
| 2064 | } |
| 2065 | })); |