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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef TRACEIMPL_OVERLOADED_H_ |
| 6 #define TRACEIMPL_OVERLOADED_H_ |
| 7 |
| 8 #include "heap/stubs.h" |
| 9 |
| 10 namespace blink { |
| 11 |
| 12 class X : public GarbageCollected<X> { |
| 13 public: |
| 14 void trace(Visitor*) {} |
| 15 void trace(InlinedGlobalMarkingVisitor) {} |
| 16 }; |
| 17 |
| 18 class InlinedBase : public GarbageCollected<InlinedBase> { |
| 19 public: |
| 20 virtual void trace(Visitor* visitor) { traceImpl(visitor); } |
| 21 virtual void trace(InlinedGlobalMarkingVisitor visitor) { |
| 22 traceImpl(visitor); |
| 23 } |
| 24 |
| 25 private: |
| 26 template <typename VisitorDispatcher> |
| 27 void traceImpl(VisitorDispatcher visitor) { visitor->trace(x_base_); } |
| 28 |
| 29 Member<X> x_base_; |
| 30 }; |
| 31 |
| 32 class InlinedDerived : public InlinedBase { |
| 33 public: |
| 34 void trace(Visitor* visitor) override { traceImpl(visitor); } |
| 35 void trace(InlinedGlobalMarkingVisitor visitor) override { |
| 36 traceImpl(visitor); |
| 37 } |
| 38 |
| 39 private: |
| 40 template <typename VisitorDispatcher> |
| 41 void traceImpl(VisitorDispatcher visitor) { |
| 42 visitor->trace(x_derived_); |
| 43 InlinedBase::trace(visitor); |
| 44 } |
| 45 |
| 46 Member<X> x_derived_; |
| 47 }; |
| 48 |
| 49 class ExternBase : public GarbageCollected<ExternBase> { |
| 50 public: |
| 51 virtual void trace(Visitor*); |
| 52 virtual void trace(InlinedGlobalMarkingVisitor); |
| 53 |
| 54 private: |
| 55 template <typename VisitorDispatcher> |
| 56 void traceImpl(VisitorDispatcher); |
| 57 |
| 58 Member<X> x_base_; |
| 59 }; |
| 60 |
| 61 class ExternDerived : public ExternBase { |
| 62 public: |
| 63 void trace(Visitor*) override; |
| 64 void trace(InlinedGlobalMarkingVisitor) override; |
| 65 |
| 66 private: |
| 67 template <typename VisitorDispatcher> |
| 68 void traceImpl(VisitorDispatcher); |
| 69 |
| 70 Member<X> x_derived_; |
| 71 }; |
| 72 |
| 73 } |
| 74 |
| 75 #endif // TRACEIMPL_OVERLOADED_H_ |
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