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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef TRACE_TEMPLATED_SUPER_H_ |
| 6 #define TRACE_TEMPLATED_SUPER_H_ |
| 7 |
| 8 #include "heap/stubs.h" |
| 9 |
| 10 namespace blink { |
| 11 |
| 12 class HeapObject; |
| 13 |
| 14 class Mixin : public GarbageCollectedMixin { |
| 15 public: |
| 16 virtual void trace(Visitor*) override { } |
| 17 }; |
| 18 |
| 19 template<typename T> |
| 20 class Super : public GarbageCollected<Super<T> >, public Mixin { |
| 21 USING_GARBAGE_COLLECTED_MIXIN(Super); |
| 22 public: |
| 23 virtual void trace(Visitor*) override; |
| 24 void clearWeakMembers(Visitor*); |
| 25 private: |
| 26 Member<HeapObject> m_obj; |
| 27 WeakMember<HeapObject> m_weak; |
| 28 }; |
| 29 |
| 30 template<typename T> |
| 31 class Sub : public Super<T> { |
| 32 public: |
| 33 virtual void trace(Visitor* visitor) override; |
| 34 private: |
| 35 Member<HeapObject> m_obj; |
| 36 }; |
| 37 |
| 38 class HeapObject : public Sub<HeapObject> { |
| 39 public: |
| 40 virtual void trace(Visitor*) override; |
| 41 private: |
| 42 Member<HeapObject> m_obj; |
| 43 }; |
| 44 |
| 45 } |
| 46 |
| 47 #endif |
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