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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_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 }; |
| 18 A(Type type) : m_type(type) { } |
| 19 private: |
| 20 Type m_type; |
| 21 }; |
| 22 |
| 23 class B : public A { |
| 24 public: |
| 25 B() : A(TB) { } |
| 26 void traceAfterDispatch(Visitor*); |
| 27 private: |
| 28 Member<A> m_a; |
| 29 }; |
| 30 |
| 31 class C : public A { |
| 32 public: |
| 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: |
| 42 Abstract(Type type) : A(type) { } |
| 43 }; |
| 44 |
| 45 class D : public Abstract { |
| 46 public: |
| 47 D() : Abstract(TD) { } |
| 48 void traceAfterDispatch(Visitor*); |
| 49 private: |
| 50 Member<A> m_a; |
| 51 }; |
| 52 |
| 53 } |
| 54 |
| 55 #endif |
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