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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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699 // encoded. If the characters are all single-byte characters, the | 699 // encoded. If the characters are all single-byte characters, the |
700 // result will be ASCII encoded, otherwise it will converted to two | 700 // result will be ASCII encoded, otherwise it will converted to two |
701 // byte. | 701 // byte. |
702 // - ...FromTwoByte initializes the string from a buffer that is two-byte | 702 // - ...FromTwoByte initializes the string from a buffer that is two-byte |
703 // encoded. If the characters are all single-byte characters, the | 703 // encoded. If the characters are all single-byte characters, the |
704 // result will be converted to ASCII, otherwise it will be left as | 704 // result will be converted to ASCII, otherwise it will be left as |
705 // two-byte. | 705 // two-byte. |
706 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 706 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
707 // failed. | 707 // failed. |
708 // Please note this does not perform a garbage collection. | 708 // Please note this does not perform a garbage collection. |
709 MUST_USE_RESULT MaybeObject* AllocateStringFromAscii( | 709 MUST_USE_RESULT MaybeObject* AllocateStringFromOneByte( |
710 Vector<const char> str, | 710 Vector<const char> str, |
711 PretenureFlag pretenure = NOT_TENURED); | 711 PretenureFlag pretenure = NOT_TENURED); |
712 MUST_USE_RESULT inline MaybeObject* AllocateStringFromUtf8( | 712 MUST_USE_RESULT inline MaybeObject* AllocateStringFromUtf8( |
713 Vector<const char> str, | 713 Vector<const char> str, |
714 PretenureFlag pretenure = NOT_TENURED); | 714 PretenureFlag pretenure = NOT_TENURED); |
715 MUST_USE_RESULT MaybeObject* AllocateStringFromUtf8Slow( | 715 MUST_USE_RESULT MaybeObject* AllocateStringFromUtf8Slow( |
716 Vector<const char> str, | 716 Vector<const char> str, |
717 int non_ascii_start, | 717 int non_ascii_start, |
718 PretenureFlag pretenure = NOT_TENURED); | 718 PretenureFlag pretenure = NOT_TENURED); |
719 MUST_USE_RESULT MaybeObject* AllocateStringFromTwoByte( | 719 MUST_USE_RESULT MaybeObject* AllocateStringFromTwoByte( |
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743 Vector<const char> str, | 743 Vector<const char> str, |
744 int chars); | 744 int chars); |
745 | 745 |
746 // Allocates and partially initializes a String. There are two String | 746 // Allocates and partially initializes a String. There are two String |
747 // encodings: ASCII and two byte. These functions allocate a string of the | 747 // encodings: ASCII and two byte. These functions allocate a string of the |
748 // given length and set its map and length fields. The characters of the | 748 // given length and set its map and length fields. The characters of the |
749 // string are uninitialized. | 749 // string are uninitialized. |
750 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 750 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
751 // failed. | 751 // failed. |
752 // Please note this does not perform a garbage collection. | 752 // Please note this does not perform a garbage collection. |
753 MUST_USE_RESULT MaybeObject* AllocateRawAsciiString( | 753 MUST_USE_RESULT MaybeObject* AllocateRawOneByteString( |
754 int length, | 754 int length, |
755 PretenureFlag pretenure = NOT_TENURED); | 755 PretenureFlag pretenure = NOT_TENURED); |
756 MUST_USE_RESULT MaybeObject* AllocateRawTwoByteString( | 756 MUST_USE_RESULT MaybeObject* AllocateRawTwoByteString( |
757 int length, | 757 int length, |
758 PretenureFlag pretenure = NOT_TENURED); | 758 PretenureFlag pretenure = NOT_TENURED); |
759 | 759 |
760 // Computes a single character string where the character has code. | 760 // Computes a single character string where the character has code. |
761 // A cache is used for ASCII codes. | 761 // A cache is used for ASCII codes. |
762 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 762 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
763 // failed. Please note this does not perform a garbage collection. | 763 // failed. Please note this does not perform a garbage collection. |
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2828 AssertNoAllocation no_alloc; // i.e. no gc allowed. | 2828 AssertNoAllocation no_alloc; // i.e. no gc allowed. |
2829 | 2829 |
2830 private: | 2830 private: |
2831 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 2831 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
2832 }; | 2832 }; |
2833 #endif // DEBUG || LIVE_OBJECT_LIST | 2833 #endif // DEBUG || LIVE_OBJECT_LIST |
2834 | 2834 |
2835 } } // namespace v8::internal | 2835 } } // namespace v8::internal |
2836 | 2836 |
2837 #endif // V8_HEAP_H_ | 2837 #endif // V8_HEAP_H_ |
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