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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 Delete; | 14 var Delete; |
| 15 var GlobalArray = global.Array; | 15 var GlobalArray = global.Array; |
| 16 var InternalArray = utils.InternalArray; | 16 var InternalArray = utils.InternalArray; |
| 17 var InternalPackedArray = utils.InternalPackedArray; | 17 var InternalPackedArray = utils.InternalPackedArray; |
| 18 var MathMin; | |
| 19 var ObjectHasOwnProperty; | 18 var ObjectHasOwnProperty; |
| 20 var ObjectIsFrozen; | 19 var ObjectIsFrozen; |
| 21 var ObjectIsSealed; | 20 var ObjectIsSealed; |
| 22 var ObjectToString; | 21 var ObjectToString; |
| 23 var unscopablesSymbol = utils.ImportNow("unscopables_symbol"); | 22 var unscopablesSymbol = utils.ImportNow("unscopables_symbol"); |
| 24 | 23 |
| 25 utils.Import(function(from) { | 24 utils.Import(function(from) { |
| 26 Delete = from.Delete; | 25 Delete = from.Delete; |
| 27 MathMin = from.MathMin; | |
| 28 ObjectHasOwnProperty = from.ObjectHasOwnProperty; | 26 ObjectHasOwnProperty = from.ObjectHasOwnProperty; |
| 29 ObjectIsFrozen = from.ObjectIsFrozen; | 27 ObjectIsFrozen = from.ObjectIsFrozen; |
| 30 ObjectIsSealed = from.ObjectIsSealed; | 28 ObjectIsSealed = from.ObjectIsSealed; |
| 31 ObjectToString = from.ObjectToString; | 29 ObjectToString = from.ObjectToString; |
| 32 }); | 30 }); |
| 33 | 31 |
| 34 // ------------------------------------------------------------------- | 32 // ------------------------------------------------------------------- |
| 35 | 33 |
| 36 // Global list of arrays visited during toString, toLocaleString and | 34 // Global list of arrays visited during toString, toLocaleString and |
| 37 // join invocations. | 35 // join invocations. |
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| 257 | 255 |
| 258 | 256 |
| 259 // This function implements the optimized splice implementation that can use | 257 // This function implements the optimized splice implementation that can use |
| 260 // special array operations to handle sparse arrays in a sensible fashion. | 258 // special array operations to handle sparse arrays in a sensible fashion. |
| 261 function SparseMove(array, start_i, del_count, len, num_additional_args) { | 259 function SparseMove(array, start_i, del_count, len, num_additional_args) { |
| 262 // Bail out if no moving is necessary. | 260 // Bail out if no moving is necessary. |
| 263 if (num_additional_args === del_count) return; | 261 if (num_additional_args === del_count) return; |
| 264 // Move data to new array. | 262 // Move data to new array. |
| 265 var new_array = new InternalArray( | 263 var new_array = new InternalArray( |
| 266 // Clamp array length to 2^32-1 to avoid early RangeError. | 264 // Clamp array length to 2^32-1 to avoid early RangeError. |
| 267 MathMin(len - del_count + num_additional_args, 0xffffffff)); | 265 MIN_SIMPLE(len - del_count + num_additional_args, 0xffffffff)); |
| 268 var big_indices; | 266 var big_indices; |
| 269 var indices = %GetArrayKeys(array, len); | 267 var indices = %GetArrayKeys(array, len); |
| 270 if (IS_NUMBER(indices)) { | 268 if (IS_NUMBER(indices)) { |
| 271 var limit = indices; | 269 var limit = indices; |
| 272 for (var i = 0; i < start_i && i < limit; ++i) { | 270 for (var i = 0; i < start_i && i < limit; ++i) { |
| 273 var current = array[i]; | 271 var current = array[i]; |
| 274 if (!IS_UNDEFINED(current) || i in array) { | 272 if (!IS_UNDEFINED(current) || i in array) { |
| 275 new_array[i] = current; | 273 new_array[i] = current; |
| 276 } | 274 } |
| 277 } | 275 } |
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| 1654 %InstallToContext([ | 1652 %InstallToContext([ |
| 1655 "array_pop", ArrayPop, | 1653 "array_pop", ArrayPop, |
| 1656 "array_push", ArrayPush, | 1654 "array_push", ArrayPush, |
| 1657 "array_shift", ArrayShift, | 1655 "array_shift", ArrayShift, |
| 1658 "array_splice", ArraySplice, | 1656 "array_splice", ArraySplice, |
| 1659 "array_slice", ArraySlice, | 1657 "array_slice", ArraySlice, |
| 1660 "array_unshift", ArrayUnshift, | 1658 "array_unshift", ArrayUnshift, |
| 1661 ]); | 1659 ]); |
| 1662 | 1660 |
| 1663 }); | 1661 }); |
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