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 TEMPLATED_CLASS_WITH_LOCAL_CLASS_REQUIRES_TRACE_H 6 #define TEMPLATED_CLASS_WITH_LOCAL_CLASS_REQUIRES_TRACE_H 7 8 #include "heap/stubs.h" 9 10 namespace blink { 11 12 class NonHeapObject { }; 13 14 class HeapObject : public GarbageCollected<HeapObject> { 15 public: HeapObject()16 HeapObject() { } 17 Trace(Visitor *)18 void Trace(Visitor*) { } 19 }; 20 21 template<typename T> 22 class TemplatedObject final 23 : public GarbageCollectedFinalized<TemplatedObject<T> > { 24 public: TemplatedObject(T *)25 TemplatedObject(T*) 26 { 27 } 28 29 void Trace(Visitor*); 30 31 private: 32 class Local final : public GarbageCollected<Local> { 33 public: Trace(Visitor * visitor)34 void Trace(Visitor* visitor) 35 { 36 visitor->Trace(m_heapObject); 37 visitor->Trace(m_object); 38 } 39 private: 40 Member<HeapObject> m_heapObject; 41 std::unique_ptr<HeapObject> m_object; 42 }; 43 44 Member<Local> m_local; 45 Member<T> m_memberRef; 46 std::unique_ptr<T> m_uniqueRef; 47 }; 48 49 } // namespace blink 50 51 #endif // TEMPLATED_CLASS_WITH_LOCAL_CLASS_REQUIRES_TRACE_H 52 53