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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 (function(global, utils) { | 5 (function(global, utils) { |
| 6 | 6 |
| 7 'use strict'; | 7 'use strict'; |
| 8 | 8 |
| 9 %CheckIsBootstrapping(); | 9 %CheckIsBootstrapping(); |
| 10 | 10 |
| 11 // ------------------------------------------------------------------- | 11 // ------------------------------------------------------------------- |
| 12 // Imports | 12 // Imports |
| 13 | 13 |
| 14 var GetIterator; | 14 var GetIterator; |
| 15 var GetMethod; | 15 var GetMethod; |
| 16 var GlobalArray = global.Array; | 16 var GlobalArray = global.Array; |
| 17 var iteratorSymbol = utils.ImportNow("iterator_symbol"); | 17 var iteratorSymbol = utils.ImportNow("iterator_symbol"); |
| 18 var MathMax; |
| 19 var MathMin; |
| 18 var ObjectIsFrozen; | 20 var ObjectIsFrozen; |
| 19 var ObjectDefineProperty; | 21 var ObjectDefineProperty; |
| 20 | 22 |
| 21 utils.Import(function(from) { | 23 utils.Import(function(from) { |
| 22 GetIterator = from.GetIterator; | 24 GetIterator = from.GetIterator; |
| 23 GetMethod = from.GetMethod; | 25 GetMethod = from.GetMethod; |
| 26 MathMax = from.MathMax; |
| 27 MathMin = from.MathMin; |
| 24 ObjectIsFrozen = from.ObjectIsFrozen; | 28 ObjectIsFrozen = from.ObjectIsFrozen; |
| 25 ObjectDefineProperty = from.ObjectDefineProperty; | 29 ObjectDefineProperty = from.ObjectDefineProperty; |
| 26 }); | 30 }); |
| 27 | 31 |
| 28 // ------------------------------------------------------------------- | 32 // ------------------------------------------------------------------- |
| 29 | 33 |
| 30 function InnerArrayCopyWithin(target, start, end, array, length) { | 34 function InnerArrayCopyWithin(target, start, end, array, length) { |
| 31 target = TO_INTEGER(target); | 35 target = TO_INTEGER(target); |
| 32 var to; | 36 var to; |
| 33 if (target < 0) { | 37 if (target < 0) { |
| 34 to = MAX_SIMPLE(length + target, 0); | 38 to = MathMax(length + target, 0); |
| 35 } else { | 39 } else { |
| 36 to = MIN_SIMPLE(target, length); | 40 to = MathMin(target, length); |
| 37 } | 41 } |
| 38 | 42 |
| 39 start = TO_INTEGER(start); | 43 start = TO_INTEGER(start); |
| 40 var from; | 44 var from; |
| 41 if (start < 0) { | 45 if (start < 0) { |
| 42 from = MAX_SIMPLE(length + start, 0); | 46 from = MathMax(length + start, 0); |
| 43 } else { | 47 } else { |
| 44 from = MIN_SIMPLE(start, length); | 48 from = MathMin(start, length); |
| 45 } | 49 } |
| 46 | 50 |
| 47 end = IS_UNDEFINED(end) ? length : TO_INTEGER(end); | 51 end = IS_UNDEFINED(end) ? length : TO_INTEGER(end); |
| 48 var final; | 52 var final; |
| 49 if (end < 0) { | 53 if (end < 0) { |
| 50 final = MAX_SIMPLE(length + end, 0); | 54 final = MathMax(length + end, 0); |
| 51 } else { | 55 } else { |
| 52 final = MIN_SIMPLE(end, length); | 56 final = MathMin(end, length); |
| 53 } | 57 } |
| 54 | 58 |
| 55 var count = MIN_SIMPLE(final - from, length - to); | 59 var count = MathMin(final - from, length - to); |
| 56 var direction = 1; | 60 var direction = 1; |
| 57 if (from < to && to < (from + count)) { | 61 if (from < to && to < (from + count)) { |
| 58 direction = -1; | 62 direction = -1; |
| 59 from = from + count - 1; | 63 from = from + count - 1; |
| 60 to = to + count - 1; | 64 to = to + count - 1; |
| 61 } | 65 } |
| 62 | 66 |
| 63 while (count > 0) { | 67 while (count > 0) { |
| 64 if (from in array) { | 68 if (from in array) { |
| 65 array[to] = array[from]; | 69 array[to] = array[from]; |
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| 285 | 289 |
| 286 utils.Export(function(to) { | 290 utils.Export(function(to) { |
| 287 to.ArrayFrom = ArrayFrom; | 291 to.ArrayFrom = ArrayFrom; |
| 288 to.InnerArrayCopyWithin = InnerArrayCopyWithin; | 292 to.InnerArrayCopyWithin = InnerArrayCopyWithin; |
| 289 to.InnerArrayFill = InnerArrayFill; | 293 to.InnerArrayFill = InnerArrayFill; |
| 290 to.InnerArrayFind = InnerArrayFind; | 294 to.InnerArrayFind = InnerArrayFind; |
| 291 to.InnerArrayFindIndex = InnerArrayFindIndex; | 295 to.InnerArrayFindIndex = InnerArrayFindIndex; |
| 292 }); | 296 }); |
| 293 | 297 |
| 294 }) | 298 }) |
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