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Side by Side Diff: Source/core/dom/ElementData.cpp

Issue 405923002: Introduce DEFINE_ELEMENT_DATA_TYPE_CASTS, and use it (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 5 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 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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76 , m_classNames(other.m_classNames) 76 , m_classNames(other.m_classNames)
77 , m_idForStyleResolution(other.m_idForStyleResolution) 77 , m_idForStyleResolution(other.m_idForStyleResolution)
78 { 78 {
79 // NOTE: The inline style is copied by the subclass copy constructor since w e don't know what to do with it here. 79 // NOTE: The inline style is copied by the subclass copy constructor since w e don't know what to do with it here.
80 } 80 }
81 81
82 #if ENABLE(OILPAN) 82 #if ENABLE(OILPAN)
83 void ElementData::finalizeGarbageCollectedObject() 83 void ElementData::finalizeGarbageCollectedObject()
84 { 84 {
85 if (m_isUnique) 85 if (m_isUnique)
86 static_cast<UniqueElementData*>(this)->~UniqueElementData(); 86 toUniqueElementData(this)->~UniqueElementData();
87 else 87 else
88 static_cast<ShareableElementData*>(this)->~ShareableElementData(); 88 toShareableElementData(this)->~ShareableElementData();
89 } 89 }
90 #else 90 #else
91 void ElementData::destroy() 91 void ElementData::destroy()
92 { 92 {
93 if (m_isUnique) 93 if (m_isUnique)
94 delete static_cast<UniqueElementData*>(this); 94 delete toUniqueElementData(this);
95 else 95 else
96 delete static_cast<ShareableElementData*>(this); 96 delete toShareableElementData(this);
97 } 97 }
98 #endif 98 #endif
99 99
100 PassRefPtrWillBeRawPtr<UniqueElementData> ElementData::makeUniqueCopy() const 100 PassRefPtrWillBeRawPtr<UniqueElementData> ElementData::makeUniqueCopy() const
101 { 101 {
102 if (isUnique()) 102 if (isUnique())
103 return adoptRefWillBeNoop(new UniqueElementData(static_cast<const Unique ElementData&>(*this))); 103 return adoptRefWillBeNoop(new UniqueElementData(toUniqueElementData(*thi s)));
104 return adoptRefWillBeNoop(new UniqueElementData(static_cast<const ShareableE lementData&>(*this))); 104 return adoptRefWillBeNoop(new UniqueElementData(toShareableElementData(*this )));
105 } 105 }
106 106
107 bool ElementData::isEquivalent(const ElementData* other) const 107 bool ElementData::isEquivalent(const ElementData* other) const
108 { 108 {
109 AttributeCollection attributes = this->attributes(); 109 AttributeCollection attributes = this->attributes();
110 if (!other) 110 if (!other)
111 return attributes.isEmpty(); 111 return attributes.isEmpty();
112 112
113 AttributeCollection otherAttributes = other->attributes(); 113 AttributeCollection otherAttributes = other->attributes();
114 if (attributes.size() != otherAttributes.size()) 114 if (attributes.size() != otherAttributes.size())
115 return false; 115 return false;
116 116
117 AttributeCollection::const_iterator end = attributes.end(); 117 AttributeCollection::const_iterator end = attributes.end();
118 for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) { 118 for (AttributeCollection::const_iterator it = attributes.begin(); it != end; ++it) {
119 const Attribute* otherAttr = otherAttributes.find(it->name()); 119 const Attribute* otherAttr = otherAttributes.find(it->name());
120 if (!otherAttr || it->value() != otherAttr->value()) 120 if (!otherAttr || it->value() != otherAttr->value())
121 return false; 121 return false;
122 } 122 }
123 return true; 123 return true;
124 } 124 }
125 125
126 void ElementData::trace(Visitor* visitor) 126 void ElementData::trace(Visitor* visitor)
127 { 127 {
128 if (m_isUnique) 128 if (m_isUnique)
129 static_cast<UniqueElementData*>(this)->traceAfterDispatch(visitor); 129 toUniqueElementData(this)->traceAfterDispatch(visitor);
130 else 130 else
131 static_cast<ShareableElementData*>(this)->traceAfterDispatch(visitor); 131 toShareableElementData(this)->traceAfterDispatch(visitor);
132 } 132 }
133 133
134 void ElementData::traceAfterDispatch(Visitor* visitor) 134 void ElementData::traceAfterDispatch(Visitor* visitor)
135 { 135 {
136 visitor->trace(m_inlineStyle); 136 visitor->trace(m_inlineStyle);
137 } 137 }
138 138
139 ShareableElementData::ShareableElementData(const Vector<Attribute>& attributes) 139 ShareableElementData::ShareableElementData(const Vector<Attribute>& attributes)
140 : ElementData(attributes.size()) 140 : ElementData(attributes.size())
141 { 141 {
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222 return 0; 222 return 0;
223 } 223 }
224 224
225 void UniqueElementData::traceAfterDispatch(Visitor* visitor) 225 void UniqueElementData::traceAfterDispatch(Visitor* visitor)
226 { 226 {
227 visitor->trace(m_presentationAttributeStyle); 227 visitor->trace(m_presentationAttributeStyle);
228 ElementData::traceAfterDispatch(visitor); 228 ElementData::traceAfterDispatch(visitor);
229 } 229 }
230 230
231 } // namespace blink 231 } // namespace blink
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