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

Source/core/dom/DOMTypedArray.cpp

Index: Source/core/dom/DOMTypedArray.cpp
diff --git a/Source/core/dom/DOMTypedArray.cpp b/Source/core/dom/DOMTypedArray.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..dd34998b6dc9b86ef6ecacc042d5b6efa9c6a34f
--- /dev/null
+++ b/Source/core/dom/DOMTypedArray.cpp
@@ -0,0 +1,60 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+#include "core/dom/DOMTypedArray.h"
+
+#include "bindings/core/v8/DOMDataStore.h"
+#include "bindings/core/v8/V8ArrayBuffer.h"
+#include "bindings/core/v8/V8DOMWrapper.h"
+
+namespace blink {
+
+template<typename WTFTypedArray, typename V8TypedArray>
+v8::Handle<v8::Object> DOMTypedArray<WTFTypedArray, V8TypedArray>::wrap(v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
+{
+    // It's possible that no one except for the new wrapper owns this object at
+    // this moment, so we have to prevent GC to collect this object until the
+    // object gets associated with the wrapper.
+    RefPtr<ThisType> protect(this);
+
+    ASSERT(!DOMDataStore::containsWrapperNonTemplate(this, isolate));
+
+    const WrapperTypeInfo* wrapperTypeInfo = this->wrapperTypeInfo();
+    RefPtr<DOMArrayBuffer> buffer = this->buffer();
+    v8::Local<v8::Value> v8Buffer = toV8(buffer.get(), creationContext, isolate);
+    ASSERT(v8Buffer->IsArrayBuffer());
+
+    v8::Handle<v8::Object> wrapper = V8TypedArray::New(v8Buffer.As<v8::ArrayBuffer>(), byteOffset(), length());
+
+    return associateWithWrapper(wrapperTypeInfo, wrapper, isolate);
+}
+
+template<typename WTFTypedArray, typename V8TypedArray>
+v8::Handle<v8::Object> DOMTypedArray<WTFTypedArray, V8TypedArray>::associateWithWrapper(const WrapperTypeInfo* wrapperTypeInfo, v8::Handle<v8::Object> wrapper, v8::Isolate* isolate)
+{
+    return V8DOMWrapper::associateObjectWithWrapperNonTemplate(this, wrapperTypeInfo, wrapper, isolate);
+}
+
+// Instantiation of the non-inline functions of the template classes.
+#define INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Type) \
+    INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS_IMPL(WTF::Type##Array, v8::Type##Array)
+#define INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS_IMPL(WTFTypedArray, V8TypedArray) \
+template v8::Handle<v8::Object> DOMTypedArray<WTFTypedArray, V8TypedArray>::wrap(v8::Handle<v8::Object> creationContext, v8::Isolate*); \
+template v8::Handle<v8::Object> DOMTypedArray<WTFTypedArray, V8TypedArray>::associateWithWrapper(const WrapperTypeInfo*, v8::Handle<v8::Object> wrapper, v8::Isolate*)
+
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Int8);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Int16);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Int32);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Uint8);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Uint8Clamped);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Uint16);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Uint32);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Float32);
+INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS(Float64);
+
+#undef INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS
+#undef INSTANTIATE_DOMTYPEDARRAY_MEMBER_FUNCTIONS_IMPL
+
+} // namespace blink