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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 (function(global, utils) { | 5 (function(global, utils) { |
6 | 6 |
7 "use strict"; | 7 "use strict"; |
8 | 8 |
9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
10 | 10 |
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41 var InnerArrayFindIndex; | 41 var InnerArrayFindIndex; |
42 var InnerArrayForEach; | 42 var InnerArrayForEach; |
43 var InnerArrayIndexOf; | 43 var InnerArrayIndexOf; |
44 var InnerArrayJoin; | 44 var InnerArrayJoin; |
45 var InnerArrayLastIndexOf; | 45 var InnerArrayLastIndexOf; |
46 var InnerArrayMap; | 46 var InnerArrayMap; |
47 var InnerArraySome; | 47 var InnerArraySome; |
48 var InnerArraySort; | 48 var InnerArraySort; |
49 var InnerArrayToLocaleString; | 49 var InnerArrayToLocaleString; |
50 var IsNaN; | 50 var IsNaN; |
| 51 var MathMax; |
| 52 var MathMin; |
51 var PackedArrayReverse; | 53 var PackedArrayReverse; |
52 | 54 |
53 utils.Import(function(from) { | 55 utils.Import(function(from) { |
54 ArrayFrom = from.ArrayFrom; | 56 ArrayFrom = from.ArrayFrom; |
55 ArrayToString = from.ArrayToString; | 57 ArrayToString = from.ArrayToString; |
56 InnerArrayCopyWithin = from.InnerArrayCopyWithin; | 58 InnerArrayCopyWithin = from.InnerArrayCopyWithin; |
57 InnerArrayEvery = from.InnerArrayEvery; | 59 InnerArrayEvery = from.InnerArrayEvery; |
58 InnerArrayFill = from.InnerArrayFill; | 60 InnerArrayFill = from.InnerArrayFill; |
59 InnerArrayFilter = from.InnerArrayFilter; | 61 InnerArrayFilter = from.InnerArrayFilter; |
60 InnerArrayFind = from.InnerArrayFind; | 62 InnerArrayFind = from.InnerArrayFind; |
61 InnerArrayFindIndex = from.InnerArrayFindIndex; | 63 InnerArrayFindIndex = from.InnerArrayFindIndex; |
62 InnerArrayForEach = from.InnerArrayForEach; | 64 InnerArrayForEach = from.InnerArrayForEach; |
63 InnerArrayIndexOf = from.InnerArrayIndexOf; | 65 InnerArrayIndexOf = from.InnerArrayIndexOf; |
64 InnerArrayJoin = from.InnerArrayJoin; | 66 InnerArrayJoin = from.InnerArrayJoin; |
65 InnerArrayLastIndexOf = from.InnerArrayLastIndexOf; | 67 InnerArrayLastIndexOf = from.InnerArrayLastIndexOf; |
66 InnerArrayMap = from.InnerArrayMap; | 68 InnerArrayMap = from.InnerArrayMap; |
67 InnerArrayReduce = from.InnerArrayReduce; | 69 InnerArrayReduce = from.InnerArrayReduce; |
68 InnerArrayReduceRight = from.InnerArrayReduceRight; | 70 InnerArrayReduceRight = from.InnerArrayReduceRight; |
69 InnerArraySome = from.InnerArraySome; | 71 InnerArraySome = from.InnerArraySome; |
70 InnerArraySort = from.InnerArraySort; | 72 InnerArraySort = from.InnerArraySort; |
71 InnerArrayToLocaleString = from.InnerArrayToLocaleString; | 73 InnerArrayToLocaleString = from.InnerArrayToLocaleString; |
72 IsNaN = from.IsNaN; | 74 IsNaN = from.IsNaN; |
| 75 MathMax = from.MathMax; |
| 76 MathMin = from.MathMin; |
73 PackedArrayReverse = from.PackedArrayReverse; | 77 PackedArrayReverse = from.PackedArrayReverse; |
74 }); | 78 }); |
75 | 79 |
76 // ------------------------------------------------------------------- | 80 // ------------------------------------------------------------------- |
77 | 81 |
78 function ConstructTypedArray(constructor, arg) { | 82 function ConstructTypedArray(constructor, arg) { |
79 // TODO(littledan): This is an approximation of the spec, which requires | 83 // TODO(littledan): This is an approximation of the spec, which requires |
80 // that only real TypedArray classes should be accepted (22.2.2.1.1) | 84 // that only real TypedArray classes should be accepted (22.2.2.1.1) |
81 if (!%IsConstructor(constructor) || IS_UNDEFINED(constructor.prototype) || | 85 if (!%IsConstructor(constructor) || IS_UNDEFINED(constructor.prototype) || |
82 !%HasOwnProperty(constructor.prototype, "BYTES_PER_ELEMENT")) { | 86 !%HasOwnProperty(constructor.prototype, "BYTES_PER_ELEMENT")) { |
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308 | 312 |
309 | 313 |
310 function TypedArraySlice(start, end) { | 314 function TypedArraySlice(start, end) { |
311 if (!%_IsTypedArray(this)) throw MakeTypeError(kNotTypedArray); | 315 if (!%_IsTypedArray(this)) throw MakeTypeError(kNotTypedArray); |
312 var len = %_TypedArrayGetLength(this); | 316 var len = %_TypedArrayGetLength(this); |
313 | 317 |
314 var relativeStart = TO_INTEGER(start); | 318 var relativeStart = TO_INTEGER(start); |
315 | 319 |
316 var k; | 320 var k; |
317 if (relativeStart < 0) { | 321 if (relativeStart < 0) { |
318 k = MAX_SIMPLE(len + relativeStart, 0); | 322 k = MathMax(len + relativeStart, 0); |
319 } else { | 323 } else { |
320 k = MIN_SIMPLE(relativeStart, len); | 324 k = MathMin(relativeStart, len); |
321 } | 325 } |
322 | 326 |
323 var relativeEnd; | 327 var relativeEnd; |
324 if (IS_UNDEFINED(end)) { | 328 if (IS_UNDEFINED(end)) { |
325 relativeEnd = len; | 329 relativeEnd = len; |
326 } else { | 330 } else { |
327 relativeEnd = TO_INTEGER(end); | 331 relativeEnd = TO_INTEGER(end); |
328 } | 332 } |
329 | 333 |
330 var final; | 334 var final; |
331 if (relativeEnd < 0) { | 335 if (relativeEnd < 0) { |
332 final = MAX_SIMPLE(len + relativeEnd, 0); | 336 final = MathMax(len + relativeEnd, 0); |
333 } else { | 337 } else { |
334 final = MIN_SIMPLE(relativeEnd, len); | 338 final = MathMin(relativeEnd, len); |
335 } | 339 } |
336 | 340 |
337 var count = MAX_SIMPLE(final - k, 0); | 341 var count = MathMax(final - k, 0); |
338 var array = ConstructTypedArrayLike(this, count); | 342 var array = ConstructTypedArrayLike(this, count); |
339 // The code below is the 'then' branch; the 'else' branch species | 343 // The code below is the 'then' branch; the 'else' branch species |
340 // a memcpy. Because V8 doesn't canonicalize NaN, the difference is | 344 // a memcpy. Because V8 doesn't canonicalize NaN, the difference is |
341 // unobservable. | 345 // unobservable. |
342 var n = 0; | 346 var n = 0; |
343 while (k < final) { | 347 while (k < final) { |
344 var kValue = this[k]; | 348 var kValue = this[k]; |
345 // TODO(littledan): The spec says to throw on an error in setting; | 349 // TODO(littledan): The spec says to throw on an error in setting; |
346 // does this throw? | 350 // does this throw? |
347 array[n] = kValue; | 351 array[n] = kValue; |
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399 "some", TypedArraySome, | 403 "some", TypedArraySome, |
400 "sort", TypedArraySort, | 404 "sort", TypedArraySort, |
401 "toString", TypedArrayToString, | 405 "toString", TypedArrayToString, |
402 "toLocaleString", TypedArrayToLocaleString | 406 "toLocaleString", TypedArrayToLocaleString |
403 ]); | 407 ]); |
404 endmacro | 408 endmacro |
405 | 409 |
406 TYPED_ARRAYS(EXTEND_TYPED_ARRAY) | 410 TYPED_ARRAYS(EXTEND_TYPED_ARRAY) |
407 | 411 |
408 }) | 412 }) |
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