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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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559 | 559 |
560 result.length = end_i - start_i; | 560 result.length = end_i - start_i; |
561 | 561 |
562 return result; | 562 return result; |
563 } | 563 } |
564 | 564 |
565 | 565 |
566 function ArraySplice(start, delete_count) { | 566 function ArraySplice(start, delete_count) { |
567 var num_arguments = %_ArgumentsLength(); | 567 var num_arguments = %_ArgumentsLength(); |
568 | 568 |
569 // SpiderMonkey and JSC return undefined in the case where no | |
570 // arguments are given instead of using the implicit undefined | |
571 // arguments. This does not follow ECMA-262, but we do the same for | |
572 // compatibility. | |
573 // TraceMonkey follows ECMA-262 though. | |
574 if (num_arguments == 0) return; | |
575 | |
576 var len = TO_UINT32(this.length); | 569 var len = TO_UINT32(this.length); |
577 var start_i = TO_INTEGER(start); | 570 var start_i = TO_INTEGER(start); |
578 | 571 |
579 if (start_i < 0) { | 572 if (start_i < 0) { |
580 start_i += len; | 573 start_i += len; |
581 if (start_i < 0) start_i = 0; | 574 if (start_i < 0) start_i = 0; |
582 } else { | 575 } else { |
583 if (start_i > len) start_i = len; | 576 if (start_i > len) start_i = len; |
584 } | 577 } |
585 | 578 |
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1120 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), | 1113 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), |
1121 "reduce", getFunction("reduce", ArrayReduce, 1), | 1114 "reduce", getFunction("reduce", ArrayReduce, 1), |
1122 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) | 1115 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) |
1123 )); | 1116 )); |
1124 | 1117 |
1125 %FinishArrayPrototypeSetup($Array.prototype); | 1118 %FinishArrayPrototypeSetup($Array.prototype); |
1126 } | 1119 } |
1127 | 1120 |
1128 | 1121 |
1129 SetupArray(); | 1122 SetupArray(); |
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