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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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60 { | 60 { |
61 static_assert(sizeof(T), "T must be fully defined"); | 61 static_assert(sizeof(T), "T must be fully defined"); |
62 return HeapObjectHeader::fromPayload(object)->isMarked(); | 62 return HeapObjectHeader::fromPayload(object)->isMarked(); |
63 } | 63 } |
64 }; | 64 }; |
65 | 65 |
66 template<typename T> | 66 template<typename T> |
67 class ObjectAliveTrait<T, true> { | 67 class ObjectAliveTrait<T, true> { |
68 STATIC_ONLY(ObjectAliveTrait); | 68 STATIC_ONLY(ObjectAliveTrait); |
69 public: | 69 public: |
| 70 NO_LAZY_SWEEP_SANITIZE_ADDRESS |
70 static bool isHeapObjectAlive(T* object) | 71 static bool isHeapObjectAlive(T* object) |
71 { | 72 { |
72 static_assert(sizeof(T), "T must be fully defined"); | 73 static_assert(sizeof(T), "T must be fully defined"); |
73 return object->isHeapObjectAlive(); | 74 return object->isHeapObjectAlive(); |
74 } | 75 } |
75 }; | 76 }; |
76 | 77 |
77 class PLATFORM_EXPORT Heap { | 78 class PLATFORM_EXPORT Heap { |
78 STATIC_ONLY(Heap); | 79 STATIC_ONLY(Heap); |
79 public: | 80 public: |
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496 void VisitorHelper<Derived>::handleWeakCell(Visitor* self, void* object) | 497 void VisitorHelper<Derived>::handleWeakCell(Visitor* self, void* object) |
497 { | 498 { |
498 T** cell = reinterpret_cast<T**>(object); | 499 T** cell = reinterpret_cast<T**>(object); |
499 if (*cell && !ObjectAliveTrait<T>::isHeapObjectAlive(*cell)) | 500 if (*cell && !ObjectAliveTrait<T>::isHeapObjectAlive(*cell)) |
500 *cell = nullptr; | 501 *cell = nullptr; |
501 } | 502 } |
502 | 503 |
503 } // namespace blink | 504 } // namespace blink |
504 | 505 |
505 #endif // Heap_h | 506 #endif // Heap_h |
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