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_AFTER_DISPATCH_H_ 6 #define TRACE_AFTER_DISPATCH_H_ 7 8 #include "heap/stubs.h" 9 10 namespace blink { 11 12 class A : public GarbageCollected<A> { 13 public: 14 void Trace(Visitor*); 15 void TraceAfterDispatch(Visitor*); 16 protected: 17 enum Type { TB, TC, TD }; A(Type type)18 A(Type type) : m_type(type) { } 19 private: 20 Type m_type; 21 }; 22 23 class B : public A { 24 public: B()25 B() : A(TB) { } 26 void TraceAfterDispatch(Visitor*); 27 private: 28 Member<A> m_a; 29 }; 30 31 class C : public A { 32 public: C()33 C() : A(TC) { } 34 void TraceAfterDispatch(Visitor*); 35 private: 36 Member<A> m_a; 37 }; 38 39 // This class is considered abstract does not need to be dispatched to. 40 class Abstract : public A { 41 protected: Abstract(Type type)42 Abstract(Type type) : A(type) { } 43 }; 44 45 class D : public Abstract { 46 public: D()47 D() : Abstract(TD) { } 48 void TraceAfterDispatch(Visitor*); 49 private: 50 Member<A> m_a; 51 }; 52 53 } 54 55 #endif 56