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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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549 static Object* AllocateConsString(String* first, String* second); | 549 static Object* AllocateConsString(String* first, String* second); |
550 | 550 |
551 // Allocates a new sub string object which is a substring of an underlying | 551 // Allocates a new sub string object which is a substring of an underlying |
552 // string buffer stretching from the index start (inclusive) to the index | 552 // string buffer stretching from the index start (inclusive) to the index |
553 // end (exclusive). | 553 // end (exclusive). |
554 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 554 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
555 // failed. | 555 // failed. |
556 // Please note this does not perform a garbage collection. | 556 // Please note this does not perform a garbage collection. |
557 static Object* AllocateSubString(String* buffer, | 557 static Object* AllocateSubString(String* buffer, |
558 int start, | 558 int start, |
559 int end); | 559 int end, |
| 560 PretenureFlag pretenure = NOT_TENURED); |
560 | 561 |
561 // Allocate a new external string object, which is backed by a string | 562 // Allocate a new external string object, which is backed by a string |
562 // resource that resides outside the V8 heap. | 563 // resource that resides outside the V8 heap. |
563 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 564 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
564 // failed. | 565 // failed. |
565 // Please note this does not perform a garbage collection. | 566 // Please note this does not perform a garbage collection. |
566 static Object* AllocateExternalStringFromAscii( | 567 static Object* AllocateExternalStringFromAscii( |
567 ExternalAsciiString::Resource* resource); | 568 ExternalAsciiString::Resource* resource); |
568 static Object* AllocateExternalStringFromTwoByte( | 569 static Object* AllocateExternalStringFromTwoByte( |
569 ExternalTwoByteString::Resource* resource); | 570 ExternalTwoByteString::Resource* resource); |
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1725 | 1726 |
1726 // To speed up scavenge collections new space string are kept | 1727 // To speed up scavenge collections new space string are kept |
1727 // separate from old space strings. | 1728 // separate from old space strings. |
1728 static List<Object*> new_space_strings_; | 1729 static List<Object*> new_space_strings_; |
1729 static List<Object*> old_space_strings_; | 1730 static List<Object*> old_space_strings_; |
1730 }; | 1731 }; |
1731 | 1732 |
1732 } } // namespace v8::internal | 1733 } } // namespace v8::internal |
1733 | 1734 |
1734 #endif // V8_HEAP_H_ | 1735 #endif // V8_HEAP_H_ |
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