Split bindings/v8/custom into core and modules.

Source/bindings/v8/custom/V8TypedArrayCustom.h

-/*
- * Copyright (C) 2013 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 V8TypedArrayCustom_h
-#define V8TypedArrayCustom_h
-
-#include "bindings/v8/V8Binding.h"
-#include "bindings/v8/V8DOMWrapper.h"
-#include "bindings/v8/WrapperTypeInfo.h"
-#include "bindings/v8/custom/V8ArrayBufferCustom.h"
-#include "wtf/ArrayBuffer.h"
-#include <v8.h>
-
-namespace WebCore {
-
-template<typename T>
-class TypedArrayTraits
-{ };
-
-template<typename TypedArray>
-class V8TypedArray {
-public:
-    static bool hasInstance(v8::Handle<v8::Value> value, v8::Isolate*)
-    {
-        return TypedArrayTraits<TypedArray>::IsInstance(value);
-    }
-
-    static TypedArray* toNative(v8::Handle<v8::Object>);
-    static TypedArray* toNativeWithTypeCheck(v8::Isolate*, v8::Handle<v8::Value>);
-    static void derefObject(void*);
-    static const WrapperTypeInfo wrapperTypeInfo;
-    static const int internalFieldCount = v8DefaultWrapperInternalFieldCount;
-
-    static v8::Handle<v8::Object> wrap(TypedArray* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-    {
-        ASSERT(impl);
-        ASSERT(!DOMDataStore::containsWrapper<Binding>(impl, isolate));
-        return V8TypedArray<TypedArray>::createWrapper(impl, creationContext, isolate);
-    }
-
-    static v8::Handle<v8::Value> toV8(TypedArray* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-    {
-        if (UNLIKELY(!impl))
-            return v8::Null(isolate);
-        v8::Handle<v8::Value> wrapper = DOMDataStore::getWrapper<Binding>(impl, isolate);
-        if (!wrapper.IsEmpty())
-            return wrapper;
-        return wrap(impl, creationContext, isolate);
-    }
-
-    template<typename CallbackInfo>
-    static void v8SetReturnValue(const CallbackInfo& info, TypedArray* impl)
-    {
-        if (UNLIKELY(!impl)) {
-            v8SetReturnValueNull(info);
-            return;
-        }
-        if (DOMDataStore::setReturnValueFromWrapper<Binding>(info.GetReturnValue(), impl))
-            return;
-        v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-        info.GetReturnValue().Set(wrapper);
-    }
-
-    template<typename CallbackInfo>
-    static void v8SetReturnValueForMainWorld(const CallbackInfo& info, TypedArray* impl)
-    {
-        ASSERT(DOMWrapperWorld::current(info.GetIsolate()).isMainWorld());
-        if (UNLIKELY(!impl)) {
-            v8SetReturnValueNull(info);
-            return;
-        }
-        if (DOMDataStore::setReturnValueFromWrapperForMainWorld<Binding>(info.GetReturnValue(), impl))
-            return;
-        v8::Handle<v8::Value> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-        info.GetReturnValue().Set(wrapper);
-    }
-
-    template<class CallbackInfo, class Wrappable>
-    static void v8SetReturnValueFast(const CallbackInfo& info, TypedArray* impl, Wrappable* wrappable)
-    {
-        if (UNLIKELY(!impl)) {
-            v8SetReturnValueNull(info);
-            return;
-        }
-        if (DOMDataStore::setReturnValueFromWrapperFast<Binding>(info.GetReturnValue(), impl, info.Holder(), wrappable))
-            return;
-        v8::Handle<v8::Object> wrapper = wrap(impl, info.Holder(), info.GetIsolate());
-        info.GetReturnValue().Set(wrapper);
-    }
-
-    static inline void* toInternalPointer(TypedArray* impl)
-    {
-        return impl;
-    }
-private:
-    typedef TypedArrayTraits<TypedArray> Traits;
-    typedef typename Traits::V8Type V8Type;
-    typedef V8TypedArray<TypedArray> Binding;
-
-    static v8::Handle<v8::Object> createWrapper(PassRefPtr<TypedArray>, v8::Handle<v8::Object> creationContext, v8::Isolate*);
-};
-
-template<typename TypedArray>
-class TypedArrayWrapperTraits {
-public:
-    static const WrapperTypeInfo* info() { return &V8TypedArray<TypedArray>::wrapperTypeInfo; }
-};
-
-
-template <typename TypedArray>
-v8::Handle<v8::Object> V8TypedArray<TypedArray>::createWrapper(PassRefPtr<TypedArray> impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
-{
-    ASSERT(impl.get());
-    ASSERT(!DOMDataStore::containsWrapper<Binding>(impl.get(), isolate));
-
-    RefPtr<ArrayBuffer> buffer = impl->buffer();
-    v8::Local<v8::Value> v8Buffer = WebCore::toV8(buffer.get(), creationContext, isolate);
-
-    ASSERT(v8Buffer->IsArrayBuffer());
-
-    v8::Local<v8::Object> wrapper = V8Type::New(v8Buffer.As<v8::ArrayBuffer>(), impl->byteOffset(), Traits::length(impl.get()));
-
-    V8DOMWrapper::associateObjectWithWrapper<Binding>(impl, &wrapperTypeInfo, wrapper, isolate, WrapperConfiguration::Independent);
-    return wrapper;
-}
-
-template <typename TypedArray>
-TypedArray* V8TypedArray<TypedArray>::toNative(v8::Handle<v8::Object> object)
-{
-    ASSERT(Traits::IsInstance(object));
-    void* typedarrayPtr = object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex);
-    if (typedarrayPtr)
-        return reinterpret_cast<TypedArray*>(typedarrayPtr);
-
-    v8::Handle<V8Type> view = object.As<V8Type>();
-    RefPtr<ArrayBuffer> arrayBuffer = V8ArrayBuffer::toNative(view->Buffer());
-    RefPtr<TypedArray> typedArray = TypedArray::create(arrayBuffer, view->ByteOffset(), Traits::length(view));
-    ASSERT(typedArray.get());
-    V8DOMWrapper::associateObjectWithWrapper<Binding>(typedArray.release(), &wrapperTypeInfo, object, v8::Isolate::GetCurrent(), WrapperConfiguration::Independent);
-
-    typedarrayPtr = object->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex);
-    ASSERT(typedarrayPtr);
-    return reinterpret_cast<TypedArray*>(typedarrayPtr);
-}
-
-template <typename TypedArray>
-TypedArray* V8TypedArray<TypedArray>::toNativeWithTypeCheck(v8::Isolate* isolate, v8::Handle<v8::Value> value)
-{
-    return V8TypedArray<TypedArray>::hasInstance(value, isolate) ? V8TypedArray<TypedArray>::toNative(v8::Handle<v8::Object>::Cast(value)) : 0;
-}
-
-template <typename TypedArray>
-const WrapperTypeInfo V8TypedArray<TypedArray>::wrapperTypeInfo = {
-    gin::kEmbedderBlink,
-    0, V8TypedArray<TypedArray>::derefObject,
-    0, 0, 0, 0, 0, WrapperTypeObjectPrototype, RefCountedObject
-};
-
-template <typename TypedArray>
-void V8TypedArray<TypedArray>::derefObject(void* object)
-{
-    static_cast<TypedArray*>(object)->deref();
-}
-
-
-} // namespace WebCode
-
-#endif // V8TypedArrayCustom_h