third_party/WebKit/Source/core/dom/DOMArrayBuffer.h

// 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.

#ifndef DOMArrayBuffer_h
#define DOMArrayBuffer_h

#include "core/CoreExport.h"
#include "core/dom/DOMArrayBufferBase.h"
#include "wtf/typed_arrays/ArrayBuffer.h"

namespace blink {

class CORE_EXPORT DOMArrayBuffer final : public DOMArrayBufferBase {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static DOMArrayBuffer* create(PassRefPtr<WTF::ArrayBuffer> buffer) {
    return new DOMArrayBuffer(std::move(buffer));
  }
  static DOMArrayBuffer* create(unsigned numElements,
                                unsigned elementByteSize) {
    return create(WTF::ArrayBuffer::create(numElements, elementByteSize));
  }
  static DOMArrayBuffer* create(const void* source, unsigned byteLength) {
    return create(WTF::ArrayBuffer::create(source, byteLength));
  }
  static DOMArrayBuffer* create(WTF::ArrayBufferContents& contents) {
    return create(WTF::ArrayBuffer::create(contents));
  }

  // Only for use by XMLHttpRequest::responseArrayBuffer and
  // Internals::serializeObject.
  static DOMArrayBuffer* createUninitializedOrNull(unsigned numElements,
                                                   unsigned elementByteSize);

  DOMArrayBuffer* slice(int begin, int end) const {
    return create(buffer()->slice(begin, end));
  }
  DOMArrayBuffer* slice(int begin) const {
    return create(buffer()->slice(begin));
  }

  v8::Local<v8::Object> wrap(v8::Isolate*,
                             v8::Local<v8::Object> creationContext) override;

 private:
  explicit DOMArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer)
      : DOMArrayBufferBase(std::move(buffer)) {}
};

}  // namespace blink

#endif  // DOMArrayBuffer_h