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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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567 void Failure::FailurePrint(StringStream* accumulator) { | 567 void Failure::FailurePrint(StringStream* accumulator) { |
568 accumulator->Add("Failure(%p)", reinterpret_cast<void*>(value())); | 568 accumulator->Add("Failure(%p)", reinterpret_cast<void*>(value())); |
569 } | 569 } |
570 | 570 |
571 | 571 |
572 void Failure::FailurePrint() { | 572 void Failure::FailurePrint() { |
573 PrintF("Failure(%p)", reinterpret_cast<void*>(value())); | 573 PrintF("Failure(%p)", reinterpret_cast<void*>(value())); |
574 } | 574 } |
575 | 575 |
576 | 576 |
577 Failure* Failure::RetryAfterGC(int requested_bytes, AllocationSpace space) { | |
578 ASSERT((space & ~kSpaceTagMask) == 0); | |
579 // TODO(X64): Stop using Smi validation for non-smi checks, even if they | |
580 // happen to be identical at the moment. | |
581 | |
582 int requested = requested_bytes >> kObjectAlignmentBits; | |
583 int value = (requested << kSpaceTagSize) | space; | |
584 // We can't very well allocate a heap number in this situation, and if the | |
585 // requested memory is so large it seems reasonable to say that this is an | |
586 // out of memory situation. This fixes a crash in | |
587 // js1_5/Regress/regress-303213.js. | |
588 if (value >> kSpaceTagSize != requested || | |
589 !Smi::IsValid(value) || | |
590 value != ((value << kFailureTypeTagSize) >> kFailureTypeTagSize) || | |
591 !Smi::IsValid(value << kFailureTypeTagSize)) { | |
592 Top::context()->mark_out_of_memory(); | |
593 return Failure::OutOfMemoryException(); | |
594 } | |
595 return Construct(RETRY_AFTER_GC, value); | |
596 } | |
597 | |
598 | |
599 // Should a word be prefixed by 'a' or 'an' in order to read naturally in | 577 // Should a word be prefixed by 'a' or 'an' in order to read naturally in |
600 // English? Returns false for non-ASCII or words that don't start with | 578 // English? Returns false for non-ASCII or words that don't start with |
601 // a capital letter. The a/an rule follows pronunciation in English. | 579 // a capital letter. The a/an rule follows pronunciation in English. |
602 // We don't use the BBC's overcorrect "an historic occasion" though if | 580 // We don't use the BBC's overcorrect "an historic occasion" though if |
603 // you speak a dialect you may well say "an 'istoric occasion". | 581 // you speak a dialect you may well say "an 'istoric occasion". |
604 static bool AnWord(String* str) { | 582 static bool AnWord(String* str) { |
605 if (str->length() == 0) return false; // A nothing. | 583 if (str->length() == 0) return false; // A nothing. |
606 int c0 = str->Get(0); | 584 int c0 = str->Get(0); |
607 int c1 = str->length() > 1 ? str->Get(1) : 0; | 585 int c1 = str->length() > 1 ? str->Get(1) : 0; |
608 if (c0 == 'U') { | 586 if (c0 == 'U') { |
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9060 if (break_point_objects()->IsUndefined()) return 0; | 9038 if (break_point_objects()->IsUndefined()) return 0; |
9061 // Single beak point. | 9039 // Single beak point. |
9062 if (!break_point_objects()->IsFixedArray()) return 1; | 9040 if (!break_point_objects()->IsFixedArray()) return 1; |
9063 // Multiple break points. | 9041 // Multiple break points. |
9064 return FixedArray::cast(break_point_objects())->length(); | 9042 return FixedArray::cast(break_point_objects())->length(); |
9065 } | 9043 } |
9066 #endif | 9044 #endif |
9067 | 9045 |
9068 | 9046 |
9069 } } // namespace v8::internal | 9047 } } // namespace v8::internal |
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