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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 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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| 85 Dependent, | 85 Dependent, |
| 86 Independent, | 86 Independent, |
| 87 }; | 87 }; |
| 88 | 88 |
| 89 enum GCType { | 89 enum GCType { |
| 90 GarbageCollectedObject, | 90 GarbageCollectedObject, |
| 91 WillBeGarbageCollectedObject, | 91 WillBeGarbageCollectedObject, |
| 92 RefCountedObject, | 92 RefCountedObject, |
| 93 }; | 93 }; |
| 94 | 94 |
| 95 static const WrapperTypeInfo* unwrap(v8::Handle<v8::Value> typeInfoWrapper) | 95 static const WrapperTypeInfo* unwrap(v8::Local<v8::Value> typeInfoWrapper) |
| 96 { | 96 { |
| 97 return reinterpret_cast<const WrapperTypeInfo*>(v8::External::Cast(*type
InfoWrapper)->Value()); | 97 return reinterpret_cast<const WrapperTypeInfo*>(v8::External::Cast(*type
InfoWrapper)->Value()); |
| 98 } | 98 } |
| 99 | 99 |
| 100 bool equals(const WrapperTypeInfo* that) const | 100 bool equals(const WrapperTypeInfo* that) const |
| 101 { | 101 { |
| 102 return this == that; | 102 return this == that; |
| 103 } | 103 } |
| 104 | 104 |
| 105 bool isSubclass(const WrapperTypeInfo* that) const | 105 bool isSubclass(const WrapperTypeInfo* that) const |
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| 154 installConditionallyEnabledPropertiesFunction(prototypeTemplate, iso
late); | 154 installConditionallyEnabledPropertiesFunction(prototypeTemplate, iso
late); |
| 155 } | 155 } |
| 156 | 156 |
| 157 ActiveDOMObject* toActiveDOMObject(v8::Local<v8::Object> object) const | 157 ActiveDOMObject* toActiveDOMObject(v8::Local<v8::Object> object) const |
| 158 { | 158 { |
| 159 if (!toActiveDOMObjectFunction) | 159 if (!toActiveDOMObjectFunction) |
| 160 return 0; | 160 return 0; |
| 161 return toActiveDOMObjectFunction(object); | 161 return toActiveDOMObjectFunction(object); |
| 162 } | 162 } |
| 163 | 163 |
| 164 EventTarget* toEventTarget(v8::Handle<v8::Object>) const; | 164 EventTarget* toEventTarget(v8::Local<v8::Object>) const; |
| 165 | 165 |
| 166 void visitDOMWrapper(v8::Isolate* isolate, ScriptWrappable* scriptWrappable,
const v8::Persistent<v8::Object>& wrapper) const | 166 void visitDOMWrapper(v8::Isolate* isolate, ScriptWrappable* scriptWrappable,
const v8::Persistent<v8::Object>& wrapper) const |
| 167 { | 167 { |
| 168 if (!visitDOMWrapperFunction) | 168 if (!visitDOMWrapperFunction) |
| 169 setObjectGroup(isolate, scriptWrappable, wrapper); | 169 setObjectGroup(isolate, scriptWrappable, wrapper); |
| 170 else | 170 else |
| 171 visitDOMWrapperFunction(isolate, scriptWrappable, wrapper); | 171 visitDOMWrapperFunction(isolate, scriptWrappable, wrapper); |
| 172 } | 172 } |
| 173 | 173 |
| 174 // This field must be the first member of the struct WrapperTypeInfo. This i
s also checked by a static_assert() below. | 174 // This field must be the first member of the struct WrapperTypeInfo. This i
s also checked by a static_assert() below. |
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| 194 static_assert(offsetof(struct WrapperTypeInfo, ginEmbedder) == offsetof(struct g
in::WrapperInfo, embedder), "offset of WrapperTypeInfo.ginEmbedder must be the s
ame as gin::WrapperInfo.embedder"); | 194 static_assert(offsetof(struct WrapperTypeInfo, ginEmbedder) == offsetof(struct g
in::WrapperInfo, embedder), "offset of WrapperTypeInfo.ginEmbedder must be the s
ame as gin::WrapperInfo.embedder"); |
| 195 | 195 |
| 196 template <typename T, int offset> | 196 template <typename T, int offset> |
| 197 inline T* getInternalField(const v8::PersistentBase<v8::Object>& persistent) | 197 inline T* getInternalField(const v8::PersistentBase<v8::Object>& persistent) |
| 198 { | 198 { |
| 199 ASSERT(offset < v8::Object::InternalFieldCount(persistent)); | 199 ASSERT(offset < v8::Object::InternalFieldCount(persistent)); |
| 200 return static_cast<T*>(v8::Object::GetAlignedPointerFromInternalField(persis
tent, offset)); | 200 return static_cast<T*>(v8::Object::GetAlignedPointerFromInternalField(persis
tent, offset)); |
| 201 } | 201 } |
| 202 | 202 |
| 203 template<typename T, int offset> | 203 template<typename T, int offset> |
| 204 inline T* getInternalField(v8::Handle<v8::Object> wrapper) | 204 inline T* getInternalField(v8::Local<v8::Object> wrapper) |
| 205 { | 205 { |
| 206 ASSERT(offset < wrapper->InternalFieldCount()); | 206 ASSERT(offset < wrapper->InternalFieldCount()); |
| 207 return static_cast<T*>(wrapper->GetAlignedPointerFromInternalField(offset)); | 207 return static_cast<T*>(wrapper->GetAlignedPointerFromInternalField(offset)); |
| 208 } | 208 } |
| 209 | 209 |
| 210 inline ScriptWrappable* toScriptWrappable(const v8::Persistent<v8::Object>& wrap
per) | 210 inline ScriptWrappable* toScriptWrappable(const v8::Persistent<v8::Object>& wrap
per) |
| 211 { | 211 { |
| 212 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); | 212 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); |
| 213 } | 213 } |
| 214 | 214 |
| 215 inline ScriptWrappable* toScriptWrappable(const v8::Global<v8::Object>& wrapper) | 215 inline ScriptWrappable* toScriptWrappable(const v8::Global<v8::Object>& wrapper) |
| 216 { | 216 { |
| 217 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); | 217 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); |
| 218 } | 218 } |
| 219 | 219 |
| 220 inline ScriptWrappable* toScriptWrappable(v8::Handle<v8::Object> wrapper) | 220 inline ScriptWrappable* toScriptWrappable(v8::Local<v8::Object> wrapper) |
| 221 { | 221 { |
| 222 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); | 222 return getInternalField<ScriptWrappable, v8DOMWrapperObjectIndex>(wrapper); |
| 223 } | 223 } |
| 224 | 224 |
| 225 inline const WrapperTypeInfo* toWrapperTypeInfo(const v8::Persistent<v8::Object>
& wrapper) | 225 inline const WrapperTypeInfo* toWrapperTypeInfo(const v8::Persistent<v8::Object>
& wrapper) |
| 226 { | 226 { |
| 227 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); | 227 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); |
| 228 } | 228 } |
| 229 | 229 |
| 230 inline const WrapperTypeInfo* toWrapperTypeInfo(const v8::Global<v8::Object>& wr
apper) | 230 inline const WrapperTypeInfo* toWrapperTypeInfo(const v8::Global<v8::Object>& wr
apper) |
| 231 { | 231 { |
| 232 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); | 232 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); |
| 233 } | 233 } |
| 234 | 234 |
| 235 inline const WrapperTypeInfo* toWrapperTypeInfo(v8::Handle<v8::Object> wrapper) | 235 inline const WrapperTypeInfo* toWrapperTypeInfo(v8::Local<v8::Object> wrapper) |
| 236 { | 236 { |
| 237 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); | 237 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); |
| 238 } | 238 } |
| 239 | 239 |
| 240 inline void releaseObject(v8::Handle<v8::Object> wrapper) | 240 inline void releaseObject(v8::Local<v8::Object> wrapper) |
| 241 { | 241 { |
| 242 toWrapperTypeInfo(wrapper)->derefObject(toScriptWrappable(wrapper)); | 242 toWrapperTypeInfo(wrapper)->derefObject(toScriptWrappable(wrapper)); |
| 243 } | 243 } |
| 244 | 244 |
| 245 inline void releaseObject(v8::Global<v8::Object>& wrapper) | 245 inline void releaseObject(v8::Global<v8::Object>& wrapper) |
| 246 { | 246 { |
| 247 toWrapperTypeInfo(wrapper)->derefObject(toScriptWrappable(wrapper)); | 247 toWrapperTypeInfo(wrapper)->derefObject(toScriptWrappable(wrapper)); |
| 248 } | 248 } |
| 249 | 249 |
| 250 } // namespace blink | 250 } // namespace blink |
| 251 | 251 |
| 252 #endif // WrapperTypeInfo_h | 252 #endif // WrapperTypeInfo_h |
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