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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef WeakIdentifierMap_h | 5 #ifndef WeakIdentifierMap_h |
| 6 #define WeakIdentifierMap_h | 6 #define WeakIdentifierMap_h |
| 7 | 7 |
| 8 #include "platform/heap/Handle.h" | 8 #include "platform/heap/Handle.h" |
| 9 #include "wtf/Allocator.h" | 9 #include "wtf/Allocator.h" |
| 10 #include "wtf/HashMap.h" | 10 #include "wtf/HashMap.h" |
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| 79 | 79 |
| 80 void put(T* object, IdentifierType identifier) { | 80 void put(T* object, IdentifierType identifier) { |
| 81 DCHECK(object && !this->m_objectToIdentifier.contains(object)); | 81 DCHECK(object && !this->m_objectToIdentifier.contains(object)); |
| 82 this->m_objectToIdentifier.set(object, identifier); | 82 this->m_objectToIdentifier.set(object, identifier); |
| 83 this->m_identifierToObject.set(identifier, object); | 83 this->m_identifierToObject.set(identifier, object); |
| 84 } | 84 } |
| 85 | 85 |
| 86 void objectDestroyed(T* object) { | 86 void objectDestroyed(T* object) { |
| 87 IdentifierType identifier = this->m_objectToIdentifier.take(object); | 87 IdentifierType identifier = this->m_objectToIdentifier.take(object); |
| 88 if (!WTF::isHashTraitsEmptyValue<HashTraits<IdentifierType>>(identifier)) | 88 if (!WTF::isHashTraitsEmptyValue<HashTraits<IdentifierType>>(identifier)) |
| 89 this->m_identifierToObject.remove(identifier); | 89 this->m_identifierToObject.erase(identifier); |
| 90 } | 90 } |
| 91 }; | 91 }; |
| 92 | 92 |
| 93 #define DECLARE_WEAK_IDENTIFIER_MAP(T, ...) \ | 93 #define DECLARE_WEAK_IDENTIFIER_MAP(T, ...) \ |
| 94 template <> \ | 94 template <> \ |
| 95 WeakIdentifierMap<T, ##__VA_ARGS__>& \ | 95 WeakIdentifierMap<T, ##__VA_ARGS__>& \ |
| 96 WeakIdentifierMap<T, ##__VA_ARGS__>::instance(); \ | 96 WeakIdentifierMap<T, ##__VA_ARGS__>::instance(); \ |
| 97 extern template class WeakIdentifierMap<T, ##__VA_ARGS__>; | 97 extern template class WeakIdentifierMap<T, ##__VA_ARGS__>; |
| 98 | 98 |
| 99 #define DEFINE_WEAK_IDENTIFIER_MAP(T, ...) \ | 99 #define DEFINE_WEAK_IDENTIFIER_MAP(T, ...) \ |
| 100 template class WeakIdentifierMap<T, ##__VA_ARGS__>; \ | 100 template class WeakIdentifierMap<T, ##__VA_ARGS__>; \ |
| 101 template <> \ | 101 template <> \ |
| 102 WeakIdentifierMap<T, ##__VA_ARGS__>& \ | 102 WeakIdentifierMap<T, ##__VA_ARGS__>& \ |
| 103 WeakIdentifierMap<T, ##__VA_ARGS__>::instance() { \ | 103 WeakIdentifierMap<T, ##__VA_ARGS__>::instance() { \ |
| 104 using RefType = WeakIdentifierMap<T, ##__VA_ARGS__>; \ | 104 using RefType = WeakIdentifierMap<T, ##__VA_ARGS__>; \ |
| 105 DEFINE_STATIC_LOCAL(RefType, mapInstance, \ | 105 DEFINE_STATIC_LOCAL(RefType, mapInstance, \ |
| 106 (new WeakIdentifierMap<T, ##__VA_ARGS__>())); \ | 106 (new WeakIdentifierMap<T, ##__VA_ARGS__>())); \ |
| 107 return mapInstance; \ | 107 return mapInstance; \ |
| 108 } | 108 } |
| 109 | 109 |
| 110 } // namespace blink | 110 } // namespace blink |
| 111 | 111 |
| 112 #endif // WeakIdentifierMap_h | 112 #endif // WeakIdentifierMap_h |
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