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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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716 PretenureFlag pretenure = NOT_TENURED, | 716 PretenureFlag pretenure = NOT_TENURED, |
717 AllocationSite* allocation_site = NULL); | 717 AllocationSite* allocation_site = NULL); |
718 | 718 |
719 // Returns a deep copy of the JavaScript object. | 719 // Returns a deep copy of the JavaScript object. |
720 // Properties and elements are copied too. | 720 // Properties and elements are copied too. |
721 // Returns failure if allocation failed. | 721 // Returns failure if allocation failed. |
722 // Optionally takes an AllocationSite to be appended in an AllocationMemento. | 722 // Optionally takes an AllocationSite to be appended in an AllocationMemento. |
723 MUST_USE_RESULT MaybeObject* CopyJSObject(JSObject* source, | 723 MUST_USE_RESULT MaybeObject* CopyJSObject(JSObject* source, |
724 AllocationSite* site = NULL); | 724 AllocationSite* site = NULL); |
725 | 725 |
726 // Allocates a Harmony proxy or function proxy. | |
727 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | |
728 // failed. | |
729 // Please note this does not perform a garbage collection. | |
730 MUST_USE_RESULT MaybeObject* AllocateJSProxy(Object* handler, | |
731 Object* prototype); | |
732 | |
733 MUST_USE_RESULT MaybeObject* AllocateJSFunctionProxy(Object* handler, | |
734 Object* call_trap, | |
735 Object* construct_trap, | |
736 Object* prototype); | |
737 | |
738 // Allocates and initializes a new JavaScript object based on a map. | 726 // Allocates and initializes a new JavaScript object based on a map. |
739 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 727 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
740 // failed. | 728 // failed. |
741 // Passing an allocation site means that a memento will be created that | 729 // Passing an allocation site means that a memento will be created that |
742 // points to the site. | 730 // points to the site. |
743 // Please note this does not perform a garbage collection. | 731 // Please note this does not perform a garbage collection. |
744 MUST_USE_RESULT MaybeObject* AllocateJSObjectFromMap( | 732 MUST_USE_RESULT MaybeObject* AllocateJSObjectFromMap( |
745 Map* map, | 733 Map* map, |
746 PretenureFlag pretenure = NOT_TENURED, | 734 PretenureFlag pretenure = NOT_TENURED, |
747 bool alloc_props = true, | 735 bool alloc_props = true, |
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1017 MUST_USE_RESULT inline MaybeObject* NumberFromUint32( | 1005 MUST_USE_RESULT inline MaybeObject* NumberFromUint32( |
1018 uint32_t value, PretenureFlag pretenure = NOT_TENURED); | 1006 uint32_t value, PretenureFlag pretenure = NOT_TENURED); |
1019 | 1007 |
1020 // Allocates a new foreign object. | 1008 // Allocates a new foreign object. |
1021 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 1009 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
1022 // failed. | 1010 // failed. |
1023 // Please note this does not perform a garbage collection. | 1011 // Please note this does not perform a garbage collection. |
1024 MUST_USE_RESULT MaybeObject* AllocateForeign( | 1012 MUST_USE_RESULT MaybeObject* AllocateForeign( |
1025 Address address, PretenureFlag pretenure = NOT_TENURED); | 1013 Address address, PretenureFlag pretenure = NOT_TENURED); |
1026 | 1014 |
1027 // Allocates a new SharedFunctionInfo object. | |
1028 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | |
1029 // failed. | |
1030 // Please note this does not perform a garbage collection. | |
1031 MUST_USE_RESULT MaybeObject* AllocateSharedFunctionInfo(Object* name); | |
1032 | |
1033 // Allocates a new JSMessageObject object. | |
1034 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | |
1035 // failed. | |
1036 // Please note that this does not perform a garbage collection. | |
1037 MUST_USE_RESULT MaybeObject* AllocateJSMessageObject( | |
1038 String* type, | |
1039 JSArray* arguments, | |
1040 int start_position, | |
1041 int end_position, | |
1042 Object* script, | |
1043 Object* stack_frames); | |
1044 | |
1045 // Allocate a new external string object, which is backed by a string | |
1046 // resource that resides outside the V8 heap. | |
1047 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | |
1048 // failed. | |
1049 // Please note this does not perform a garbage collection. | |
1050 MUST_USE_RESULT MaybeObject* AllocateExternalStringFromAscii( | |
1051 const ExternalAsciiString::Resource* resource); | |
1052 MUST_USE_RESULT MaybeObject* AllocateExternalStringFromTwoByte( | |
1053 const ExternalTwoByteString::Resource* resource); | |
1054 | |
1055 // Finalizes an external string by deleting the associated external | 1015 // Finalizes an external string by deleting the associated external |
1056 // data and clearing the resource pointer. | 1016 // data and clearing the resource pointer. |
1057 inline void FinalizeExternalString(String* string); | 1017 inline void FinalizeExternalString(String* string); |
1058 | 1018 |
1059 // Allocates an uninitialized object. The memory is non-executable if the | 1019 // Allocates an uninitialized object. The memory is non-executable if the |
1060 // hardware and OS allow. | 1020 // hardware and OS allow. |
1061 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation | 1021 // Returns Failure::RetryAfterGC(requested_bytes, space) if the allocation |
1062 // failed. | 1022 // failed. |
1063 // Please note this function does not perform a garbage collection. | 1023 // Please note this function does not perform a garbage collection. |
1064 MUST_USE_RESULT inline MaybeObject* AllocateRaw(int size_in_bytes, | 1024 MUST_USE_RESULT inline MaybeObject* AllocateRaw(int size_in_bytes, |
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2980 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 2940 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
2981 | 2941 |
2982 private: | 2942 private: |
2983 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 2943 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
2984 }; | 2944 }; |
2985 #endif // DEBUG | 2945 #endif // DEBUG |
2986 | 2946 |
2987 } } // namespace v8::internal | 2947 } } // namespace v8::internal |
2988 | 2948 |
2989 #endif // V8_HEAP_H_ | 2949 #endif // V8_HEAP_H_ |
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