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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ | 5 #ifndef TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ |
6 #define TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ | 6 #define TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ |
7 | 7 |
8 #include "heap/stubs.h" | 8 #include "heap/stubs.h" |
9 | 9 |
10 namespace blink { | 10 namespace blink { |
11 | 11 |
12 class X : public GarbageCollected<X> { | 12 class X : public GarbageCollected<X> { |
13 public: | 13 public: |
14 virtual void trace(Visitor*) {} | 14 virtual void trace(Visitor*) {} |
15 }; | 15 }; |
16 | 16 |
17 template <int Y> | 17 template <int Y> |
18 class TraceImplTemplatedBase | 18 class TraceImplTemplatedBase |
19 : public GarbageCollected<TraceImplTemplatedBase<Y> > { | 19 : public GarbageCollected<TraceImplTemplatedBase<Y> > { |
20 public: | 20 public: |
21 void trace(Visitor* visitor) { traceImpl(visitor); } | 21 void trace(Visitor* visitor) { visitor->trace(x_); } |
22 | |
23 template <typename VisitorDispatcher> | |
24 void traceImpl(VisitorDispatcher visitor) { | |
25 visitor->trace(x_); | |
26 } | |
27 | 22 |
28 private: | 23 private: |
29 Member<X> x_; | 24 Member<X> x_; |
30 }; | 25 }; |
31 | 26 |
32 class TraceImplDerivedFromTemplatedBase : public TraceImplTemplatedBase<0> { | 27 class TraceImplDerivedFromTemplatedBase : public TraceImplTemplatedBase<0> { |
33 }; | 28 }; |
34 | 29 |
35 } | 30 } |
36 | 31 |
37 #endif // TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ | 32 #endif // TRACEIMPL_DERIVED_FROM_TEMPLATED_BASE_H_ |
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