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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 var $innerArrayCopyWithin; | |
6 var $innerArrayFill; | |
7 var $innerArrayFind; | |
8 var $innerArrayFindIndex; | |
9 var $arrayFrom; | |
10 | |
11 (function(global, utils) { | 5 (function(global, utils) { |
12 | 6 |
13 'use strict'; | 7 'use strict'; |
14 | 8 |
15 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
16 | 10 |
17 // ------------------------------------------------------------------- | 11 // ------------------------------------------------------------------- |
18 // Imports | 12 // Imports |
19 | 13 |
20 var GlobalArray = global.Array; | 14 var GlobalArray = global.Array; |
21 var GlobalSymbol = global.Symbol; | 15 var GlobalSymbol = global.Symbol; |
22 | 16 |
17 var GetIterator; | |
18 var GetMethod; | |
23 var MathMax; | 19 var MathMax; |
24 var MathMin; | 20 var MathMin; |
21 var ObjectIsFrozen; | |
25 | 22 |
26 utils.Import(function(from) { | 23 utils.Import(function(from) { |
24 GetIterator = from.GetIterator; | |
25 GetMethod = from.GetMethod; | |
27 MathMax = from.MathMax; | 26 MathMax = from.MathMax; |
28 MathMin = from.MathMin; | 27 MathMin = from.MathMin; |
28 ObjectIsFrozen = from.ObjectIsFrozen; | |
29 }); | 29 }); |
30 | 30 |
31 // ------------------------------------------------------------------- | 31 // ------------------------------------------------------------------- |
32 | 32 |
33 function InnerArrayCopyWithin(target, start, end, array, length) { | 33 function InnerArrayCopyWithin(target, start, end, array, length) { |
34 target = TO_INTEGER(target); | 34 target = TO_INTEGER(target); |
35 var to; | 35 var to; |
36 if (target < 0) { | 36 if (target < 0) { |
37 to = MathMax(length + target, 0); | 37 to = MathMax(length + target, 0); |
38 } else { | 38 } else { |
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172 if (i > length) i = length; | 172 if (i > length) i = length; |
173 } | 173 } |
174 | 174 |
175 if (end < 0) { | 175 if (end < 0) { |
176 end += length; | 176 end += length; |
177 if (end < 0) end = 0; | 177 if (end < 0) end = 0; |
178 } else { | 178 } else { |
179 if (end > length) end = length; | 179 if (end > length) end = length; |
180 } | 180 } |
181 | 181 |
182 if ((end - i) > 0 && $objectIsFrozen(array)) { | 182 if ((end - i) > 0 && ObjectIsFrozen(array)) { |
183 throw MakeTypeError(kArrayFunctionsOnFrozen); | 183 throw MakeTypeError(kArrayFunctionsOnFrozen); |
184 } | 184 } |
185 | 185 |
186 for (; i < end; i++) | 186 for (; i < end; i++) |
187 array[i] = value; | 187 array[i] = value; |
188 return array; | 188 return array; |
189 } | 189 } |
190 $innerArrayFill = InnerArrayFill; | 190 $innerArrayFill = InnerArrayFill; |
191 | 191 |
192 // ES6, draft 04-05-14, section 22.1.3.6 | 192 // ES6, draft 04-05-14, section 22.1.3.6 |
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209 throw MakeTypeError(kCalledNonCallable, mapfn); | 209 throw MakeTypeError(kCalledNonCallable, mapfn); |
210 } else if (%IsSloppyModeFunction(mapfn)) { | 210 } else if (%IsSloppyModeFunction(mapfn)) { |
211 if (IS_NULL(receiver)) { | 211 if (IS_NULL(receiver)) { |
212 receiver = UNDEFINED; | 212 receiver = UNDEFINED; |
213 } else if (!IS_UNDEFINED(receiver)) { | 213 } else if (!IS_UNDEFINED(receiver)) { |
214 receiver = TO_OBJECT_INLINE(receiver); | 214 receiver = TO_OBJECT_INLINE(receiver); |
215 } | 215 } |
216 } | 216 } |
217 } | 217 } |
218 | 218 |
219 var iterable = $getMethod(items, symbolIterator); | 219 var iterable = GetMethod(items, symbolIterator); |
220 var k; | 220 var k; |
221 var result; | 221 var result; |
222 var mappedValue; | 222 var mappedValue; |
223 var nextValue; | 223 var nextValue; |
224 | 224 |
225 if (!IS_UNDEFINED(iterable)) { | 225 if (!IS_UNDEFINED(iterable)) { |
226 result = %IsConstructor(this) ? new this() : []; | 226 result = %IsConstructor(this) ? new this() : []; |
227 | 227 |
228 var iterator = $getIterator(items, iterable); | 228 var iterator = GetIterator(items, iterable); |
229 | 229 |
230 k = 0; | 230 k = 0; |
231 while (true) { | 231 while (true) { |
232 var next = iterator.next(); | 232 var next = iterator.next(); |
233 | 233 |
234 if (!IS_OBJECT(next)) { | 234 if (!IS_OBJECT(next)) { |
235 throw MakeTypeError(kIteratorResultNotAnObject, next); | 235 throw MakeTypeError(kIteratorResultNotAnObject, next); |
236 } | 236 } |
237 | 237 |
238 if (next.done) { | 238 if (next.done) { |
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259 } else { | 259 } else { |
260 mappedValue = nextValue; | 260 mappedValue = nextValue; |
261 } | 261 } |
262 %AddElement(result, k, mappedValue, NONE); | 262 %AddElement(result, k, mappedValue, NONE); |
263 } | 263 } |
264 | 264 |
265 result.length = k; | 265 result.length = k; |
266 return result; | 266 return result; |
267 } | 267 } |
268 } | 268 } |
269 $arrayFrom = ArrayFrom; | 269 |
Jakob Kummerow
2015/05/21 13:45:24
nit: surrounding code seems to be happy with just
| |
270 | 270 |
271 // ES6, draft 05-22-14, section 22.1.2.3 | 271 // ES6, draft 05-22-14, section 22.1.2.3 |
272 function ArrayOf() { | 272 function ArrayOf() { |
273 var length = %_ArgumentsLength(); | 273 var length = %_ArgumentsLength(); |
274 var constructor = this; | 274 var constructor = this; |
275 // TODO: Implement IsConstructor (ES6 section 7.2.5) | 275 // TODO: Implement IsConstructor (ES6 section 7.2.5) |
276 var array = %IsConstructor(constructor) ? new constructor(length) : []; | 276 var array = %IsConstructor(constructor) ? new constructor(length) : []; |
277 for (var i = 0; i < length; i++) { | 277 for (var i = 0; i < length; i++) { |
278 %AddElement(array, i, %_Arguments(i), NONE); | 278 %AddElement(array, i, %_Arguments(i), NONE); |
279 } | 279 } |
280 array.length = length; | 280 array.length = length; |
281 return array; | 281 return array; |
282 } | 282 } |
283 | 283 |
284 // ------------------------------------------------------------------- | 284 // ------------------------------------------------------------------- |
285 | 285 |
286 $installConstants(GlobalSymbol, [ | 286 utils.InstallConstants(GlobalSymbol, [ |
287 // TODO(dslomov, caitp): Move to symbol.js when shipping | 287 // TODO(dslomov, caitp): Move to symbol.js when shipping |
288 "isConcatSpreadable", symbolIsConcatSpreadable | 288 "isConcatSpreadable", symbolIsConcatSpreadable |
289 ]); | 289 ]); |
290 | 290 |
291 %FunctionSetLength(ArrayCopyWithin, 2); | 291 %FunctionSetLength(ArrayCopyWithin, 2); |
292 %FunctionSetLength(ArrayFrom, 1); | 292 %FunctionSetLength(ArrayFrom, 1); |
293 %FunctionSetLength(ArrayFill, 1); | 293 %FunctionSetLength(ArrayFill, 1); |
294 %FunctionSetLength(ArrayFind, 1); | 294 %FunctionSetLength(ArrayFind, 1); |
295 %FunctionSetLength(ArrayFindIndex, 1); | 295 %FunctionSetLength(ArrayFindIndex, 1); |
296 | 296 |
297 // Set up non-enumerable functions on the Array object. | 297 // Set up non-enumerable functions on the Array object. |
298 $installFunctions(GlobalArray, DONT_ENUM, [ | 298 utils.InstallFunctions(GlobalArray, DONT_ENUM, [ |
299 "from", ArrayFrom, | 299 "from", ArrayFrom, |
300 "of", ArrayOf | 300 "of", ArrayOf |
301 ]); | 301 ]); |
302 | 302 |
303 // Set up the non-enumerable functions on the Array prototype object. | 303 // Set up the non-enumerable functions on the Array prototype object. |
304 $installFunctions(GlobalArray.prototype, DONT_ENUM, [ | 304 utils.InstallFunctions(GlobalArray.prototype, DONT_ENUM, [ |
305 "copyWithin", ArrayCopyWithin, | 305 "copyWithin", ArrayCopyWithin, |
306 "find", ArrayFind, | 306 "find", ArrayFind, |
307 "findIndex", ArrayFindIndex, | 307 "findIndex", ArrayFindIndex, |
308 "fill", ArrayFill | 308 "fill", ArrayFill |
309 ]); | 309 ]); |
310 | 310 |
311 // ------------------------------------------------------------------- | |
312 // Exports | |
313 | |
314 utils.Export(function(to) { | |
315 to.ArrayFrom = ArrayFrom; | |
316 to.InnerArrayCopyWithin = InnerArrayCopyWithin; | |
317 to.InnerArrayFill = InnerArrayFill; | |
318 to.InnerArrayFind = InnerArrayFind; | |
319 to.InnerArrayFindIndex = InnerArrayFindIndex; | |
320 }); | |
321 | |
311 }) | 322 }) |
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