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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 are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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37 #include "platform/heap/Handle.h" | 37 #include "platform/heap/Handle.h" |
38 | 38 |
39 namespace blink { | 39 namespace blink { |
40 | 40 |
41 struct SameSizeAsNodeRareData { | 41 struct SameSizeAsNodeRareData { |
42 void* m_pointer[2]; | 42 void* m_pointer[2]; |
43 OwnPtrWillBeMember<NodeMutationObserverData> m_mutationObserverData; | 43 OwnPtrWillBeMember<NodeMutationObserverData> m_mutationObserverData; |
44 unsigned m_bitfields; | 44 unsigned m_bitfields; |
45 }; | 45 }; |
46 | 46 |
47 COMPILE_ASSERT(sizeof(NodeRareData) == sizeof(SameSizeAsNodeRareData), NodeRareD
ataShouldStaySmall); | 47 static_assert(sizeof(NodeRareData) == sizeof(SameSizeAsNodeRareData), "NodeRareD
ata should stay small"); |
48 | 48 |
49 void NodeRareData::traceAfterDispatch(Visitor* visitor) | 49 void NodeRareData::traceAfterDispatch(Visitor* visitor) |
50 { | 50 { |
51 #if ENABLE(OILPAN) | 51 #if ENABLE(OILPAN) |
52 visitor->trace(m_renderer); | 52 visitor->trace(m_renderer); |
53 #endif | 53 #endif |
54 visitor->trace(m_mutationObserverData); | 54 visitor->trace(m_mutationObserverData); |
55 // Do not keep empty NodeListsNodeData objects around. | 55 // Do not keep empty NodeListsNodeData objects around. |
56 if (m_nodeLists && m_nodeLists->isEmpty()) | 56 if (m_nodeLists && m_nodeLists->isEmpty()) |
57 m_nodeLists.clear(); | 57 m_nodeLists.clear(); |
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73 if (m_isElementRareData) | 73 if (m_isElementRareData) |
74 static_cast<ElementRareData*>(this)->~ElementRareData(); | 74 static_cast<ElementRareData*>(this)->~ElementRareData(); |
75 else | 75 else |
76 this->~NodeRareData(); | 76 this->~NodeRareData(); |
77 } | 77 } |
78 | 78 |
79 // Ensure the 10 bits reserved for the m_connectedFrameCount cannot overflow | 79 // Ensure the 10 bits reserved for the m_connectedFrameCount cannot overflow |
80 static_assert(FrameHost::maxNumberOfFrames < (1 << NodeRareData::ConnectedFrameC
ountBits), "Frame limit should fit in rare data count"); | 80 static_assert(FrameHost::maxNumberOfFrames < (1 << NodeRareData::ConnectedFrameC
ountBits), "Frame limit should fit in rare data count"); |
81 | 81 |
82 } // namespace blink | 82 } // namespace blink |
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