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Unified Diff: Source/bindings/v8/WrapperTypeInfo.h

Issue 351423002: Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 6 months ago
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Index: Source/bindings/v8/WrapperTypeInfo.h
diff --git a/Source/bindings/v8/WrapperTypeInfo.h b/Source/bindings/v8/WrapperTypeInfo.h
deleted file mode 100644
index 3d92f6adb0d3c171b420e0bf6ff610fc342cf0ec..0000000000000000000000000000000000000000
--- a/Source/bindings/v8/WrapperTypeInfo.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WrapperTypeInfo_h
-#define WrapperTypeInfo_h
-
-#include "gin/public/wrapper_info.h"
-#include "platform/heap/Handle.h"
-#include "wtf/Assertions.h"
-#include <v8.h>
-
-namespace WebCore {
-
- class ActiveDOMObject;
- class EventTarget;
- class Node;
-
- static const int v8DOMWrapperTypeIndex = static_cast<int>(gin::kWrapperInfoIndex);
- static const int v8DOMWrapperObjectIndex = static_cast<int>(gin::kEncodedValueIndex);
- static const int v8DefaultWrapperInternalFieldCount = static_cast<int>(gin::kNumberOfInternalFields);
- static const int v8PrototypeTypeIndex = 0;
- static const int v8PrototypeInternalFieldcount = 1;
-
- static const uint16_t v8DOMNodeClassId = 1;
- static const uint16_t v8DOMObjectClassId = 2;
-
- typedef v8::Handle<v8::FunctionTemplate> (*DomTemplateFunction)(v8::Isolate*);
- typedef void (*DerefObjectFunction)(void*);
- typedef ActiveDOMObject* (*ToActiveDOMObjectFunction)(v8::Handle<v8::Object>);
- typedef EventTarget* (*ToEventTargetFunction)(v8::Handle<v8::Object>);
- typedef void (*ResolveWrapperReachabilityFunction)(void*, const v8::Persistent<v8::Object>&, v8::Isolate*);
- typedef void (*InstallPerContextEnabledPrototypePropertiesFunction)(v8::Handle<v8::Object>, v8::Isolate*);
-
- enum WrapperTypePrototype {
- WrapperTypeObjectPrototype,
- WrapperTypeExceptionPrototype
- };
-
- enum GCType {
- GarbageCollectedObject,
- WillBeGarbageCollectedObject,
- RefCountedObject,
- };
-
- inline void setObjectGroup(void* object, const v8::Persistent<v8::Object>& wrapper, v8::Isolate* isolate)
- {
- isolate->SetObjectGroupId(wrapper, v8::UniqueId(reinterpret_cast<intptr_t>(object)));
- }
-
- // This struct provides a way to store a bunch of information that is helpful when unwrapping
- // v8 objects. Each v8 bindings class has exactly one static WrapperTypeInfo member, so
- // comparing pointers is a safe way to determine if types match.
- struct WrapperTypeInfo {
-
- static const WrapperTypeInfo* unwrap(v8::Handle<v8::Value> typeInfoWrapper)
- {
- return reinterpret_cast<const WrapperTypeInfo*>(v8::External::Cast(*typeInfoWrapper)->Value());
- }
-
-
- bool equals(const WrapperTypeInfo* that) const
- {
- return this == that;
- }
-
- bool isSubclass(const WrapperTypeInfo* that) const
- {
- for (const WrapperTypeInfo* current = this; current; current = current->parentClass) {
- if (current == that)
- return true;
- }
-
- return false;
- }
-
- v8::Handle<v8::FunctionTemplate> domTemplate(v8::Isolate* isolate) const
- {
- return domTemplateFunction(isolate);
- }
-
- void installPerContextEnabledMethods(v8::Handle<v8::Object> prototypeTemplate, v8::Isolate* isolate) const
- {
- if (installPerContextEnabledMethodsFunction)
- installPerContextEnabledMethodsFunction(prototypeTemplate, isolate);
- }
-
- ActiveDOMObject* toActiveDOMObject(v8::Handle<v8::Object> object) const
- {
- if (!toActiveDOMObjectFunction)
- return 0;
- return toActiveDOMObjectFunction(object);
- }
-
- EventTarget* toEventTarget(v8::Handle<v8::Object> object) const
- {
- if (!toEventTargetFunction)
- return 0;
- return toEventTargetFunction(object);
- }
-
- void visitDOMWrapper(void* object, const v8::Persistent<v8::Object>& wrapper, v8::Isolate* isolate) const
- {
- if (!visitDOMWrapperFunction)
- setObjectGroup(object, wrapper, isolate);
- else
- visitDOMWrapperFunction(object, wrapper, isolate);
- }
-
- // This field must be the first member of the struct WrapperTypeInfo. This is also checked by a COMPILE_ASSERT() below.
- const gin::GinEmbedder ginEmbedder;
-
- const DomTemplateFunction domTemplateFunction;
- const DerefObjectFunction derefObjectFunction;
- const ToActiveDOMObjectFunction toActiveDOMObjectFunction;
- const ToEventTargetFunction toEventTargetFunction;
- const ResolveWrapperReachabilityFunction visitDOMWrapperFunction;
- const InstallPerContextEnabledPrototypePropertiesFunction installPerContextEnabledMethodsFunction;
- const WrapperTypeInfo* parentClass;
- const WrapperTypePrototype wrapperTypePrototype;
- const GCType gcType;
- };
-
-
- COMPILE_ASSERT(offsetof(struct WrapperTypeInfo, ginEmbedder) == offsetof(struct gin::WrapperInfo, embedder), wrapper_type_info_compatible_to_gin);
-
- template<typename T, int offset>
- inline T* getInternalField(const v8::Persistent<v8::Object>& persistent)
- {
- // This would be unsafe, but InternalFieldCount and GetAlignedPointerFromInternalField are guaranteed not to allocate
- const v8::Handle<v8::Object>& object = reinterpret_cast<const v8::Handle<v8::Object>&>(persistent);
- ASSERT(offset < object->InternalFieldCount());
- return static_cast<T*>(object->GetAlignedPointerFromInternalField(offset));
- }
-
- template<typename T, int offset>
- inline T* getInternalField(v8::Handle<v8::Object> wrapper)
- {
- ASSERT(offset < wrapper->InternalFieldCount());
- return static_cast<T*>(wrapper->GetAlignedPointerFromInternalField(offset));
- }
-
- inline void* toNative(const v8::Persistent<v8::Object>& wrapper)
- {
- return getInternalField<void, v8DOMWrapperObjectIndex>(wrapper);
- }
-
- inline void* toNative(v8::Handle<v8::Object> wrapper)
- {
- return getInternalField<void, v8DOMWrapperObjectIndex>(wrapper);
- }
-
- inline const WrapperTypeInfo* toWrapperTypeInfo(const v8::Persistent<v8::Object>& wrapper)
- {
- return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper);
- }
-
- inline const WrapperTypeInfo* toWrapperTypeInfo(v8::Handle<v8::Object> wrapper)
- {
- return getInternalField<WrapperTypeInfo, v8DOMWrapperTypeIndex>(wrapper);
- }
-
- inline const PersistentNode* toPersistentHandle(const v8::Handle<v8::Object>& wrapper)
- {
- // Persistent handle is stored in the last internal field.
- return static_cast<PersistentNode*>(wrapper->GetAlignedPointerFromInternalField(wrapper->InternalFieldCount() - 1));
- }
-
- inline void releaseObject(v8::Handle<v8::Object> wrapper)
- {
- const WrapperTypeInfo* typeInfo = toWrapperTypeInfo(wrapper);
- if (typeInfo->gcType == GarbageCollectedObject) {
- const PersistentNode* handle = toPersistentHandle(wrapper);
- // This will be null iff a wrapper for a hidden wrapper object,
- // see V8DOMWrapper::setNativeInfoForHiddenWrapper().
- delete handle;
- } else if (typeInfo->gcType == WillBeGarbageCollectedObject) {
-#if ENABLE(OILPAN)
- const PersistentNode* handle = toPersistentHandle(wrapper);
- // This will be null iff a wrapper for a hidden wrapper object,
- // see V8DOMWrapper::setNativeInfoForHiddenWrapper().
- delete handle;
-#else
- ASSERT(typeInfo->derefObjectFunction);
- typeInfo->derefObjectFunction(toNative(wrapper));
-#endif
- } else {
- ASSERT(typeInfo->derefObjectFunction);
- typeInfo->derefObjectFunction(toNative(wrapper));
- }
- }
-
- struct WrapperConfiguration {
-
- enum Lifetime {
- Dependent, Independent
- };
-
- void configureWrapper(v8::PersistentBase<v8::Object>* wrapper) const
- {
- wrapper->SetWrapperClassId(classId);
- if (lifetime == Independent)
- wrapper->MarkIndependent();
- }
-
- const uint16_t classId;
- const Lifetime lifetime;
- };
-
- inline WrapperConfiguration buildWrapperConfiguration(void*, WrapperConfiguration::Lifetime lifetime)
- {
- WrapperConfiguration configuration = {v8DOMObjectClassId, lifetime};
- return configuration;
- }
-
- inline WrapperConfiguration buildWrapperConfiguration(Node*, WrapperConfiguration::Lifetime lifetime)
- {
- WrapperConfiguration configuration = {v8DOMNodeClassId, lifetime};
- return configuration;
- }
-}
-
-#endif // WrapperTypeInfo_h
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