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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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392 if (!IS_UNDEFINED(result)) return result; | 392 if (!IS_UNDEFINED(result)) return result; |
393 | 393 |
394 return Join(this, length, separator, ConvertToString); | 394 return Join(this, length, separator, ConvertToString); |
395 } | 395 } |
396 | 396 |
397 | 397 |
398 function ObservedArrayPop(n) { | 398 function ObservedArrayPop(n) { |
399 n--; | 399 n--; |
400 var value = this[n]; | 400 var value = this[n]; |
401 | 401 |
402 EnqueueSpliceRecord(this, n, [value], 1, 0); | 402 EnqueueSpliceRecord(this, n, [value], 0); |
403 | 403 |
404 try { | 404 try { |
405 BeginPerformSplice(this); | 405 BeginPerformSplice(this); |
406 delete this[n]; | 406 delete this[n]; |
407 this.length = n; | 407 this.length = n; |
408 } finally { | 408 } finally { |
409 EndPerformSplice(this); | 409 EndPerformSplice(this); |
410 } | 410 } |
411 | 411 |
412 return value; | 412 return value; |
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434 delete this[n]; | 434 delete this[n]; |
435 this.length = n; | 435 this.length = n; |
436 return value; | 436 return value; |
437 } | 437 } |
438 | 438 |
439 | 439 |
440 function ObservedArrayPush() { | 440 function ObservedArrayPush() { |
441 var n = TO_UINT32(this.length); | 441 var n = TO_UINT32(this.length); |
442 var m = %_ArgumentsLength(); | 442 var m = %_ArgumentsLength(); |
443 | 443 |
444 EnqueueSpliceRecord(this, n, [], 0, m); | 444 EnqueueSpliceRecord(this, n, [], m); |
445 | 445 |
446 try { | 446 try { |
447 BeginPerformSplice(this); | 447 BeginPerformSplice(this); |
448 for (var i = 0; i < m; i++) { | 448 for (var i = 0; i < m; i++) { |
449 this[i+n] = %_Arguments(i); | 449 this[i+n] = %_Arguments(i); |
450 } | 450 } |
451 this.length = n + m; | 451 this.length = n + m; |
452 } finally { | 452 } finally { |
453 EndPerformSplice(this); | 453 EndPerformSplice(this); |
454 } | 454 } |
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574 } | 574 } |
575 } | 575 } |
576 } | 576 } |
577 return this; | 577 return this; |
578 } | 578 } |
579 | 579 |
580 | 580 |
581 function ObservedArrayShift(len) { | 581 function ObservedArrayShift(len) { |
582 var first = this[0]; | 582 var first = this[0]; |
583 | 583 |
584 EnqueueSpliceRecord(this, 0, [first], 1, 0); | 584 EnqueueSpliceRecord(this, 0, [first], 0); |
585 | 585 |
586 try { | 586 try { |
587 BeginPerformSplice(this); | 587 BeginPerformSplice(this); |
588 SimpleMove(this, 0, 1, len, 0); | 588 SimpleMove(this, 0, 1, len, 0); |
589 this.length = len - 1; | 589 this.length = len - 1; |
590 } finally { | 590 } finally { |
591 EndPerformSplice(this); | 591 EndPerformSplice(this); |
592 } | 592 } |
593 | 593 |
594 return first; | 594 return first; |
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620 | 620 |
621 this.length = len - 1; | 621 this.length = len - 1; |
622 | 622 |
623 return first; | 623 return first; |
624 } | 624 } |
625 | 625 |
626 function ObservedArrayUnshift() { | 626 function ObservedArrayUnshift() { |
627 var len = TO_UINT32(this.length); | 627 var len = TO_UINT32(this.length); |
628 var num_arguments = %_ArgumentsLength(); | 628 var num_arguments = %_ArgumentsLength(); |
629 | 629 |
630 EnqueueSpliceRecord(this, 0, [], 0, num_arguments); | 630 EnqueueSpliceRecord(this, 0, [], num_arguments); |
631 | 631 |
632 try { | 632 try { |
633 BeginPerformSplice(this); | 633 BeginPerformSplice(this); |
634 SimpleMove(this, 0, 0, len, num_arguments); | 634 SimpleMove(this, 0, 0, len, num_arguments); |
635 for (var i = 0; i < num_arguments; i++) { | 635 for (var i = 0; i < num_arguments; i++) { |
636 this[i] = %_Arguments(i); | 636 this[i] = %_Arguments(i); |
637 } | 637 } |
638 this.length = len + num_arguments; | 638 this.length = len + num_arguments; |
639 } finally { | 639 } finally { |
640 EndPerformSplice(this); | 640 EndPerformSplice(this); |
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772 this[i++] = %_Arguments(arguments_index++); | 772 this[i++] = %_Arguments(arguments_index++); |
773 } | 773 } |
774 this.length = len - del_count + num_elements_to_add; | 774 this.length = len - del_count + num_elements_to_add; |
775 | 775 |
776 } finally { | 776 } finally { |
777 EndPerformSplice(this); | 777 EndPerformSplice(this); |
778 if (deleted_elements.length || num_elements_to_add) { | 778 if (deleted_elements.length || num_elements_to_add) { |
779 EnqueueSpliceRecord(this, | 779 EnqueueSpliceRecord(this, |
780 start_i, | 780 start_i, |
781 deleted_elements.slice(), | 781 deleted_elements.slice(), |
782 deleted_elements.length, | |
783 num_elements_to_add); | 782 num_elements_to_add); |
784 } | 783 } |
785 } | 784 } |
786 | 785 |
787 // Return the deleted elements. | 786 // Return the deleted elements. |
788 return deleted_elements; | 787 return deleted_elements; |
789 } | 788 } |
790 | 789 |
791 | 790 |
792 function ArraySplice(start, delete_count) { | 791 function ArraySplice(start, delete_count) { |
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1657 )); | 1656 )); |
1658 | 1657 |
1659 SetUpLockedPrototype(InternalPackedArray, $Array(), $Array( | 1658 SetUpLockedPrototype(InternalPackedArray, $Array(), $Array( |
1660 "join", getFunction("join", ArrayJoin), | 1659 "join", getFunction("join", ArrayJoin), |
1661 "pop", getFunction("pop", ArrayPop), | 1660 "pop", getFunction("pop", ArrayPop), |
1662 "push", getFunction("push", ArrayPush) | 1661 "push", getFunction("push", ArrayPush) |
1663 )); | 1662 )); |
1664 } | 1663 } |
1665 | 1664 |
1666 SetUpArray(); | 1665 SetUpArray(); |
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