blob: 38d0a5f4d1fce20b91021c7454f81fd8ce20523c [file] [log] [blame]
/*
* Copyright (C) 2009 Apple 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 COMPUTER, INC. ``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 COMPUTER, INC. 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.
*/
#include "config.h"
#include "ArrayBufferView.h"
#include "ArrayBuffer.h"
namespace WTF {
ArrayBufferView::ArrayBufferView(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset)
: m_byteOffset(byteOffset)
, m_isNeuterable(true)
, m_buffer(buffer)
, m_prevView(nullptr)
, m_nextView(nullptr)
{
m_baseAddress = m_buffer ? (static_cast<char*>(m_buffer->data()) + m_byteOffset) : nullptr;
if (m_buffer)
m_buffer->addView(this);
}
ArrayBufferView::~ArrayBufferView()
{
if (m_buffer)
m_buffer->removeView(this);
}
void ArrayBufferView::neuter()
{
m_buffer = nullptr;
m_byteOffset = 0;
}
const char* ArrayBufferView::typeName()
{
switch (type()) {
case TypeInt8:
return "Int8";
break;
case TypeUint8:
return "UInt8";
break;
case TypeUint8Clamped:
return "UInt8Clamped";
break;
case TypeInt16:
return "Int16";
break;
case TypeUint16:
return "UInt16";
break;
case TypeInt32:
return "Int32";
break;
case TypeUint32:
return "Uint32";
break;
case TypeFloat32:
return "Float32";
break;
case TypeFloat64:
return "Float64";
break;
case TypeDataView:
return "DataView";
break;
}
ASSERT_NOT_REACHED();
return "Unknown";
}
}