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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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50 static const int v8DefaultWrapperInternalFieldCount = static_cast<int>(gin::kNum
berOfInternalFields); | 50 static const int v8DefaultWrapperInternalFieldCount = static_cast<int>(gin::kNum
berOfInternalFields); |
51 static const int v8PrototypeTypeIndex = 0; | 51 static const int v8PrototypeTypeIndex = 0; |
52 static const int v8PrototypeInternalFieldcount = 1; | 52 static const int v8PrototypeInternalFieldcount = 1; |
53 | 53 |
54 typedef v8::Local<v8::FunctionTemplate> (*DomTemplateFunction)(v8::Isolate*); | 54 typedef v8::Local<v8::FunctionTemplate> (*DomTemplateFunction)(v8::Isolate*); |
55 typedef void (*RefObjectFunction)(ScriptWrappable*); | 55 typedef void (*RefObjectFunction)(ScriptWrappable*); |
56 typedef void (*DerefObjectFunction)(ScriptWrappable*); | 56 typedef void (*DerefObjectFunction)(ScriptWrappable*); |
57 typedef void (*TraceFunction)(Visitor*, ScriptWrappable*); | 57 typedef void (*TraceFunction)(Visitor*, ScriptWrappable*); |
58 typedef ActiveDOMObject* (*ToActiveDOMObjectFunction)(v8::Local<v8::Object>); | 58 typedef ActiveDOMObject* (*ToActiveDOMObjectFunction)(v8::Local<v8::Object>); |
59 typedef void (*ResolveWrapperReachabilityFunction)(v8::Isolate*, ScriptWrappable
*, const v8::Persistent<v8::Object>&); | 59 typedef void (*ResolveWrapperReachabilityFunction)(v8::Isolate*, ScriptWrappable
*, const v8::Persistent<v8::Object>&); |
60 typedef void (*PreparePrototypeObjectFunction)(v8::Isolate*, v8::Local<v8::Objec
t>, v8::Local<v8::FunctionTemplate>); | 60 typedef void (*PreparePrototypeAndInterfaceObjectFunction)(v8::Isolate*, v8::Loc
al<v8::Object>, v8::Local<v8::Function>, v8::Local<v8::FunctionTemplate>); |
61 typedef void (*InstallConditionallyEnabledPropertiesFunction)(v8::Local<v8::Obje
ct>, v8::Isolate*); | 61 typedef void (*InstallConditionallyEnabledPropertiesFunction)(v8::Local<v8::Obje
ct>, v8::Isolate*); |
62 | 62 |
63 inline void setObjectGroup(v8::Isolate* isolate, ScriptWrappable* scriptWrappabl
e, const v8::Persistent<v8::Object>& wrapper) | 63 inline void setObjectGroup(v8::Isolate* isolate, ScriptWrappable* scriptWrappabl
e, const v8::Persistent<v8::Object>& wrapper) |
64 { | 64 { |
65 isolate->SetObjectGroupId(wrapper, v8::UniqueId(reinterpret_cast<intptr_t>(s
criptWrappable))); | 65 isolate->SetObjectGroupId(wrapper, v8::UniqueId(reinterpret_cast<intptr_t>(s
criptWrappable))); |
66 } | 66 } |
67 | 67 |
68 // This struct provides a way to store a bunch of information that is helpful wh
en unwrapping | 68 // This struct provides a way to store a bunch of information that is helpful wh
en unwrapping |
69 // v8 objects. Each v8 bindings class has exactly one static WrapperTypeInfo mem
ber, so | 69 // v8 objects. Each v8 bindings class has exactly one static WrapperTypeInfo mem
ber, so |
70 // comparing pointers is a safe way to determine if types match. | 70 // comparing pointers is a safe way to determine if types match. |
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162 ASSERT(isGarbageCollected()); | 162 ASSERT(isGarbageCollected()); |
163 Heap::decreaseWrapperCount(1); | 163 Heap::decreaseWrapperCount(1); |
164 } | 164 } |
165 | 165 |
166 void trace(Visitor* visitor, ScriptWrappable* scriptWrappable) const | 166 void trace(Visitor* visitor, ScriptWrappable* scriptWrappable) const |
167 { | 167 { |
168 ASSERT(traceFunction); | 168 ASSERT(traceFunction); |
169 return traceFunction(visitor, scriptWrappable); | 169 return traceFunction(visitor, scriptWrappable); |
170 } | 170 } |
171 | 171 |
172 void preparePrototypeObject(v8::Isolate* isolate, v8::Local<v8::Object> prot
otypeObject, v8::Local<v8::FunctionTemplate> interfaceTemplate) const | 172 void preparePrototypeAndInterfaceObject(v8::Isolate* isolate, v8::Local<v8::
Object> prototypeObject, v8::Local<v8::Function> interfaceObject, v8::Local<v8::
FunctionTemplate> interfaceTemplate) const |
173 { | 173 { |
174 if (preparePrototypeObjectFunction) | 174 if (preparePrototypeAndInterfaceObjectFunction) |
175 preparePrototypeObjectFunction(isolate, prototypeObject, interfaceTe
mplate); | 175 preparePrototypeAndInterfaceObjectFunction(isolate, prototypeObject,
interfaceObject, interfaceTemplate); |
176 } | 176 } |
177 | 177 |
178 void installConditionallyEnabledProperties(v8::Local<v8::Object> prototypeOb
ject, v8::Isolate* isolate) const | 178 void installConditionallyEnabledProperties(v8::Local<v8::Object> prototypeOb
ject, v8::Isolate* isolate) const |
179 { | 179 { |
180 if (installConditionallyEnabledPropertiesFunction) | 180 if (installConditionallyEnabledPropertiesFunction) |
181 installConditionallyEnabledPropertiesFunction(prototypeObject, isola
te); | 181 installConditionallyEnabledPropertiesFunction(prototypeObject, isola
te); |
182 } | 182 } |
183 | 183 |
184 ActiveDOMObject* toActiveDOMObject(v8::Local<v8::Object> object) const | 184 ActiveDOMObject* toActiveDOMObject(v8::Local<v8::Object> object) const |
185 { | 185 { |
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200 | 200 |
201 // This field must be the first member of the struct WrapperTypeInfo. This i
s also checked by a static_assert() below. | 201 // This field must be the first member of the struct WrapperTypeInfo. This i
s also checked by a static_assert() below. |
202 const gin::GinEmbedder ginEmbedder; | 202 const gin::GinEmbedder ginEmbedder; |
203 | 203 |
204 DomTemplateFunction domTemplateFunction; | 204 DomTemplateFunction domTemplateFunction; |
205 const RefObjectFunction refObjectFunction; | 205 const RefObjectFunction refObjectFunction; |
206 const DerefObjectFunction derefObjectFunction; | 206 const DerefObjectFunction derefObjectFunction; |
207 const TraceFunction traceFunction; | 207 const TraceFunction traceFunction; |
208 const ToActiveDOMObjectFunction toActiveDOMObjectFunction; | 208 const ToActiveDOMObjectFunction toActiveDOMObjectFunction; |
209 const ResolveWrapperReachabilityFunction visitDOMWrapperFunction; | 209 const ResolveWrapperReachabilityFunction visitDOMWrapperFunction; |
210 PreparePrototypeObjectFunction preparePrototypeObjectFunction; | 210 PreparePrototypeAndInterfaceObjectFunction preparePrototypeAndInterfaceObjec
tFunction; |
211 const InstallConditionallyEnabledPropertiesFunction installConditionallyEnab
ledPropertiesFunction; | 211 const InstallConditionallyEnabledPropertiesFunction installConditionallyEnab
ledPropertiesFunction; |
212 const char* const interfaceName; | 212 const char* const interfaceName; |
213 const WrapperTypeInfo* parentClass; | 213 const WrapperTypeInfo* parentClass; |
214 const unsigned wrapperTypePrototype : 1; // WrapperTypePrototype | 214 const unsigned wrapperTypePrototype : 1; // WrapperTypePrototype |
215 const unsigned wrapperClassId : 2; // WrapperClassId | 215 const unsigned wrapperClassId : 2; // WrapperClassId |
216 const unsigned eventTargetInheritance : 1; // EventTargetInheritance | 216 const unsigned eventTargetInheritance : 1; // EventTargetInheritance |
217 const unsigned lifetime : 1; // Lifetime | 217 const unsigned lifetime : 1; // Lifetime |
218 const unsigned gcType : 2; // GCType | 218 const unsigned gcType : 2; // GCType |
219 }; | 219 }; |
220 | 220 |
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248 } | 248 } |
249 | 249 |
250 inline const WrapperTypeInfo* toWrapperTypeInfo(v8::Local<v8::Object> wrapper) | 250 inline const WrapperTypeInfo* toWrapperTypeInfo(v8::Local<v8::Object> wrapper) |
251 { | 251 { |
252 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); | 252 return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper); |
253 } | 253 } |
254 | 254 |
255 } // namespace blink | 255 } // namespace blink |
256 | 256 |
257 #endif // WrapperTypeInfo_h | 257 #endif // WrapperTypeInfo_h |
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