bindings: Adds DOMArrayBuffer, etc. as thin wrappers for ArrayBuffer, etc.

Source/bindings/core/v8/custom/V8ArrayBufferCustom.h

-/*
- * Copyright (C) 2012 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:
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- * 2.  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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 V8ArrayBufferCustom_h
-#define V8ArrayBufferCustom_h
-
-#include "bindings/core/v8/V8Binding.h"
-#include "bindings/core/v8/V8DOMWrapper.h"
-#include "bindings/core/v8/WrapperTypeInfo.h"
-#include "wtf/ArrayBuffer.h"
-#include <v8.h>
-
-namespace blink {
-
-class V8ArrayBufferDeallocationObserver final: public WTF::ArrayBufferDeallocationObserver {
-public:
-    virtual void arrayBufferDeallocated(unsigned sizeInBytes) override
-    {
-        v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(-static_cast<int>(sizeInBytes));
-    }
-    static V8ArrayBufferDeallocationObserver* instanceTemplate();
-
-protected:
-    virtual void blinkAllocatedMemory(unsigned sizeInBytes) override
-    {
-        v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(static_cast<int>(sizeInBytes));
-    }
-};
-
-class V8ArrayBuffer {
-public:
-    static bool hasInstance(v8::Handle<v8::Value>, v8::Isolate*);
-    static ArrayBuffer* toImpl(v8::Handle<v8::Object>);
-    static ArrayBuffer* toImplWithTypeCheck(v8::Isolate*, v8::Handle<v8::Value>);
-    static void refObject(ScriptWrappableBase* internalPointer);
-    static void derefObject(ScriptWrappableBase* internalPointer);
-    static WrapperPersistentNode* createPersistentHandle(ScriptWrappableBase* internalPointer);
-    static const WrapperTypeInfo wrapperTypeInfo;
-    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount;
-
-    static inline ScriptWrappableBase* toScriptWrappableBase(ArrayBuffer* impl)
-    {
-        return reinterpret_cast<ScriptWrappableBase*>(impl);
-    }
-
-    static inline ArrayBuffer* toImpl(ScriptWrappableBase* internalPointer)
-    {
-        return reinterpret_cast<ArrayBuffer*>(internalPointer);
-    }
-
-private:
-    friend v8::Handle<v8::Object> wrap(ArrayBuffer*, v8::Handle<v8::Object> creationContext, v8::Isolate*);
-    static v8::Handle<v8::Object> createWrapper(PassRefPtr<ArrayBuffer>, v8::Handle<v8::Object> creationContext, v8::Isolate*);
-};
-
-inline v8::Handle<v8::Object> wrap(ArrayBuffer* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-{
-    ASSERT(impl);
-    ASSERT(!DOMDataStore::containsWrapper<V8ArrayBuffer>(impl, isolate));
-    return V8ArrayBuffer::createWrapper(impl, creationContext, isolate);
-}
-
-inline v8::Handle<v8::Value> toV8(ArrayBuffer* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-{
-    if (UNLIKELY(!impl))
-        return v8::Null(isolate);
-    v8::Handle<v8::Value> wrapper = DOMDataStore::getWrapper<V8ArrayBuffer>(impl, isolate);
-    if (!wrapper.IsEmpty())
-        return wrapper;
-    return wrap(impl, creationContext, isolate);
-}
-
-template<class CallbackInfo>
-inline void v8SetReturnValue(const CallbackInfo& info, ArrayBuffer* impl)
-{
-    if (UNLIKELY(!impl)) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    if (DOMDataStore::setReturnValueFromWrapper<V8ArrayBuffer>(info.GetReturnValue(), impl))
-        return;
-    v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-    v8SetReturnValue(info, wrapper);
-}
-
-template<class CallbackInfo>
-inline void v8SetReturnValueForMainWorld(const CallbackInfo& info, ArrayBuffer* impl)
-{
-    ASSERT(DOMWrapperWorld::current(info.GetIsolate()).isMainWorld());
-    if (UNLIKELY(!impl)) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    if (DOMDataStore::setReturnValueFromWrapperForMainWorld<V8ArrayBuffer>(info.GetReturnValue(), impl))
-        return;
-    v8::Handle<v8::Value> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-    v8SetReturnValue(info, wrapper);
-}
-
-template<class CallbackInfo, class Wrappable>
-inline void v8SetReturnValueFast(const CallbackInfo& info, ArrayBuffer* impl, Wrappable* wrappable)
-{
-    if (UNLIKELY(!impl)) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    if (DOMDataStore::setReturnValueFromWrapperFast<V8ArrayBuffer>(info.GetReturnValue(), impl, info.Holder(), wrappable))
-        return;
-    v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-    v8SetReturnValue(info, wrapper);
-}
-
-inline v8::Handle<v8::Value> toV8(PassRefPtr< ArrayBuffer > impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-{
-    return toV8(impl.get(), creationContext, isolate);
-}
-
-template<class CallbackInfo>
-inline void v8SetReturnValue(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl)
-{
-    v8SetReturnValue(info, impl.get());
-}
-
-template<class CallbackInfo>
-inline void v8SetReturnValueForMainWorld(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl)
-{
-    v8SetReturnValueForMainWorld(info, impl.get());
-}
-
-template<class CallbackInfo, class Wrappable>
-inline void v8SetReturnValueFast(const CallbackInfo& info, PassRefPtr< ArrayBuffer > impl, Wrappable* wrappable)
-{
-    v8SetReturnValueFast(info, impl.get(), wrappable);
-}
-
-} // namespace blink
-
-#endif // V8ArrayBufferCustom_h