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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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4962 | 4962 |
4963 | 4963 |
4964 // If the descriptor is using the empty transition array, install a new empty | 4964 // If the descriptor is using the empty transition array, install a new empty |
4965 // transition array that will have place for an element transition. | 4965 // transition array that will have place for an element transition. |
4966 static void EnsureHasTransitionArray(Handle<Map> map) { | 4966 static void EnsureHasTransitionArray(Handle<Map> map) { |
4967 Handle<TransitionArray> transitions; | 4967 Handle<TransitionArray> transitions; |
4968 if (!map->HasTransitionArray()) { | 4968 if (!map->HasTransitionArray()) { |
4969 transitions = TransitionArray::Allocate(map->GetIsolate(), 0); | 4969 transitions = TransitionArray::Allocate(map->GetIsolate(), 0); |
4970 transitions->set_back_pointer_storage(map->GetBackPointer()); | 4970 transitions->set_back_pointer_storage(map->GetBackPointer()); |
4971 } else if (!map->transitions()->IsFullTransitionArray()) { | 4971 } else if (!map->transitions()->IsFullTransitionArray()) { |
4972 transitions = TransitionArray::ExtendToFullTransitionArray( | 4972 transitions = TransitionArray::ExtendToFullTransitionArray(map); |
4973 handle(map->transitions())); | |
4974 } else { | 4973 } else { |
4975 return; | 4974 return; |
4976 } | 4975 } |
4977 map->set_transitions(*transitions); | 4976 map->set_transitions(*transitions); |
4978 } | 4977 } |
4979 | 4978 |
4980 | 4979 |
4981 void Map::InitializeDescriptors(DescriptorArray* descriptors) { | 4980 void Map::InitializeDescriptors(DescriptorArray* descriptors) { |
4982 int len = descriptors->number_of_descriptors(); | 4981 int len = descriptors->number_of_descriptors(); |
4983 set_instance_descriptors(descriptors); | 4982 set_instance_descriptors(descriptors); |
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7083 #undef READ_SHORT_FIELD | 7082 #undef READ_SHORT_FIELD |
7084 #undef WRITE_SHORT_FIELD | 7083 #undef WRITE_SHORT_FIELD |
7085 #undef READ_BYTE_FIELD | 7084 #undef READ_BYTE_FIELD |
7086 #undef WRITE_BYTE_FIELD | 7085 #undef WRITE_BYTE_FIELD |
7087 #undef NOBARRIER_READ_BYTE_FIELD | 7086 #undef NOBARRIER_READ_BYTE_FIELD |
7088 #undef NOBARRIER_WRITE_BYTE_FIELD | 7087 #undef NOBARRIER_WRITE_BYTE_FIELD |
7089 | 7088 |
7090 } } // namespace v8::internal | 7089 } } // namespace v8::internal |
7091 | 7090 |
7092 #endif // V8_OBJECTS_INL_H_ | 7091 #endif // V8_OBJECTS_INL_H_ |
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