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1 /* | 1 /* |
2 * Copyright (C) 2012 Google, Inc. All Rights Reserved. | 2 * Copyright (C) 2012 Google, Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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25 | 25 |
26 #ifndef RefCountedSupplement_h | 26 #ifndef RefCountedSupplement_h |
27 #define RefCountedSupplement_h | 27 #define RefCountedSupplement_h |
28 | 28 |
29 #include "platform/Supplementable.h" | 29 #include "platform/Supplementable.h" |
30 #include "wtf/RefCounted.h" | 30 #include "wtf/RefCounted.h" |
31 #include "wtf/RefPtr.h" | 31 #include "wtf/RefPtr.h" |
32 | 32 |
33 namespace WebCore { | 33 namespace WebCore { |
34 | 34 |
| 35 #if !ENABLE(OILPAN) |
35 template<class T, class S> | 36 template<class T, class S> |
36 class RefCountedSupplement : public RefCounted<S> { | 37 class RefCountedSupplement : public RefCounted<S> { |
37 public: | 38 public: |
38 typedef RefCountedSupplement<T, S> ThisType; | 39 typedef RefCountedSupplement<T, S> ThisType; |
39 | 40 |
40 virtual ~RefCountedSupplement() { } | 41 virtual ~RefCountedSupplement() { } |
41 | 42 |
42 class Wrapper FINAL : public Supplement<T> { | 43 class Wrapper FINAL : public Supplement<T> { |
43 public: | 44 public: |
44 explicit Wrapper(PassRefPtr<ThisType> wrapped) : m_wrapped(wrapped) { } | 45 explicit Wrapper(PassRefPtr<ThisType> wrapped) : m_wrapped(wrapped) { } |
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62 | 63 |
63 static ThisType* from(Supplementable<T>& host, const char* key) | 64 static ThisType* from(Supplementable<T>& host, const char* key) |
64 { | 65 { |
65 Supplement<T>* found = static_cast<Supplement<T>*>(host.requireSupplemen
t(key)); | 66 Supplement<T>* found = static_cast<Supplement<T>*>(host.requireSupplemen
t(key)); |
66 if (!found) | 67 if (!found) |
67 return 0; | 68 return 0; |
68 ASSERT_WITH_SECURITY_IMPLICATION(found->isRefCountedWrapper()); | 69 ASSERT_WITH_SECURITY_IMPLICATION(found->isRefCountedWrapper()); |
69 return static_cast<Wrapper*>(found)->wrapped(); | 70 return static_cast<Wrapper*>(found)->wrapped(); |
70 } | 71 } |
71 }; | 72 }; |
72 | 73 #endif |
73 // FIXME: Oilpan: Consider moving all supplements to the managed heap (as HeapSu
pplement) and removing this wrapper. | |
74 template<typename T, typename S> | |
75 class RefCountedGarbageCollectedSupplement : public RefCountedGarbageCollected<S
> { | |
76 public: | |
77 typedef RefCountedGarbageCollectedSupplement<T, S> ThisType; | |
78 | |
79 virtual ~RefCountedGarbageCollectedSupplement() { } | |
80 | |
81 class Wrapper FINAL : public Supplement<T> { | |
82 public: | |
83 explicit Wrapper(ThisType* wrapped) : m_wrapped(wrapped) { } | |
84 virtual ~Wrapper() { } | |
85 ThisType* wrapped() const { return m_wrapped; } | |
86 virtual void trace(Visitor* visitor) OVERRIDE { visitor->trace(m_wrapped
); } | |
87 private: | |
88 Member<ThisType> m_wrapped; | |
89 }; | |
90 | |
91 static void provideTo(Supplementable<T>& host, const char* key, ThisType* su
pplement) | |
92 { | |
93 host.provideSupplement(key, adoptPtr(new Wrapper(supplement))); | |
94 } | |
95 | |
96 static ThisType* from(Supplementable<T>& host, const char* key) | |
97 { | |
98 Supplement<T>* found = static_cast<Supplement<T>*>(host.requireSupplemen
t(key)); | |
99 if (!found) | |
100 return 0; | |
101 return static_cast<Wrapper*>(found)->wrapped(); | |
102 } | |
103 | |
104 virtual void trace(Visitor*) = 0; | |
105 }; | |
106 | 74 |
107 } // namespace WebCore | 75 } // namespace WebCore |
108 | 76 |
109 #endif // RefCountedSupplement_h | 77 #endif // RefCountedSupplement_h |
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