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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 TRACE_AFTER_DISPATCH_IMPL_H_ |
| 6 #define TRACE_AFTER_DISPATCH_IMPL_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 }; |
| 16 |
| 17 enum ClassTag { |
| 18 BASE, DERIVED |
| 19 }; |
| 20 |
| 21 class TraceAfterDispatchInlinedBase |
| 22 : public GarbageCollected<TraceAfterDispatchInlinedBase> { |
| 23 public: |
| 24 explicit TraceAfterDispatchInlinedBase(ClassTag tag) : tag_(tag) {} |
| 25 |
| 26 void trace(Visitor* visitor) { traceImpl(visitor); } |
| 27 void trace(InlinedGlobalMarkingVisitor visitor) { traceImpl(visitor); } |
| 28 |
| 29 void traceAfterDispatch(Visitor* visitor) { traceAfterDispatchImpl(visitor); } |
| 30 void traceAfterDispatch(InlinedGlobalMarkingVisitor visitor) { |
| 31 traceAfterDispatchImpl(visitor); |
| 32 } |
| 33 |
| 34 private: |
| 35 template <typename VisitorDispatcher> |
| 36 void traceImpl(VisitorDispatcher visitor); |
| 37 |
| 38 template <typename VisitorDispatcher> |
| 39 void traceAfterDispatchImpl(VisitorDispatcher visitor) { |
| 40 visitor->trace(x_base_); |
| 41 } |
| 42 |
| 43 ClassTag tag_; |
| 44 Member<X> x_base_; |
| 45 }; |
| 46 |
| 47 class TraceAfterDispatchInlinedDerived : public TraceAfterDispatchInlinedBase { |
| 48 public: |
| 49 TraceAfterDispatchInlinedDerived() : TraceAfterDispatchInlinedBase(DERIVED) {} |
| 50 |
| 51 void traceAfterDispatch(Visitor* visitor) { traceAfterDispatchImpl(visitor); } |
| 52 void traceAfterDispatch(InlinedGlobalMarkingVisitor visitor) { |
| 53 traceAfterDispatchImpl(visitor); |
| 54 } |
| 55 |
| 56 private: |
| 57 template <typename VisitorDispatcher> |
| 58 void traceAfterDispatchImpl(VisitorDispatcher visitor) { |
| 59 visitor->trace(x_derived_); |
| 60 TraceAfterDispatchInlinedBase::traceAfterDispatch(visitor); |
| 61 } |
| 62 |
| 63 Member<X> x_derived_; |
| 64 }; |
| 65 |
| 66 class TraceAfterDispatchExternBase |
| 67 : public GarbageCollected<TraceAfterDispatchExternBase> { |
| 68 public: |
| 69 explicit TraceAfterDispatchExternBase(ClassTag tag) : tag_(tag) {} |
| 70 |
| 71 void trace(Visitor* visitor); |
| 72 void trace(InlinedGlobalMarkingVisitor visitor); |
| 73 |
| 74 void traceAfterDispatch(Visitor* visitor); |
| 75 void traceAfterDispatch(InlinedGlobalMarkingVisitor visitor); |
| 76 |
| 77 private: |
| 78 template <typename VisitorDispatcher> |
| 79 void traceImpl(VisitorDispatcher visitor); |
| 80 |
| 81 template <typename VisitorDispatcher> |
| 82 void traceAfterDispatchImpl(VisitorDispatcher visitor); |
| 83 |
| 84 ClassTag tag_; |
| 85 Member<X> x_base_; |
| 86 }; |
| 87 |
| 88 class TraceAfterDispatchExternDerived : public TraceAfterDispatchExternBase { |
| 89 public: |
| 90 TraceAfterDispatchExternDerived() : TraceAfterDispatchExternBase(DERIVED) {} |
| 91 |
| 92 void traceAfterDispatch(Visitor* visitor); |
| 93 void traceAfterDispatch(InlinedGlobalMarkingVisitor visitor); |
| 94 |
| 95 private: |
| 96 template <typename VisitorDispatcher> |
| 97 void traceAfterDispatchImpl(VisitorDispatcher visitor); |
| 98 |
| 99 Member<X> x_derived_; |
| 100 }; |
| 101 |
| 102 } |
| 103 |
| 104 #endif // TRACE_AFTER_DISPATCH_IMPL_H_ |
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