third_party/WebKit/Source/core/exported/WebArrayBuffer.cpp

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * 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,
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#include "public/web/WebArrayBuffer.h"

#include "core/typed_arrays/DOMArrayBuffer.h"

namespace blink {

WebArrayBuffer WebArrayBuffer::Create(unsigned num_elements,
                                      unsigned element_byte_size) {
  return WebArrayBuffer(
      DOMArrayBuffer::Create(num_elements, element_byte_size));
}

void WebArrayBuffer::Reset() {
  private_.Reset();
}

void WebArrayBuffer::Assign(const WebArrayBuffer& other) {
  private_ = other.private_;
}

void* WebArrayBuffer::Data() const {
  if (!IsNull())
    return const_cast<void*>(private_->Data());
  return nullptr;
}

unsigned WebArrayBuffer::ByteLength() const {
  if (!IsNull())
    return private_->ByteLength();
  return 0;
}

WebArrayBuffer::WebArrayBuffer(DOMArrayBuffer* buffer) : private_(buffer) {}

WebArrayBuffer& WebArrayBuffer::operator=(DOMArrayBuffer* buffer) {
  private_ = buffer;
  return *this;
}

WebArrayBuffer::operator DOMArrayBuffer*() const {
  return private_.Get();
}

}  // namespace blink