1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "ArrayBufferView.h"
28
29#include "ArrayBuffer.h"
30
31namespace WTF {
32
33ArrayBufferView::ArrayBufferView(PassRefPtr<ArrayBuffer> buffer,
34                       unsigned byteOffset)
35        : m_byteOffset(byteOffset)
36        , m_isNeuterable(true)
37        , m_buffer(buffer)
38        , m_prevView(0)
39        , m_nextView(0)
40{
41    m_baseAddress = m_buffer ? (static_cast<char*>(m_buffer->data()) + m_byteOffset) : 0;
42    if (m_buffer)
43        m_buffer->addView(this);
44}
45
46ArrayBufferView::~ArrayBufferView()
47{
48    if (m_buffer)
49        m_buffer->removeView(this);
50}
51
52void ArrayBufferView::neuter()
53{
54    m_buffer = nullptr;
55    m_byteOffset = 0;
56}
57
58const char* ArrayBufferView::typeName()
59{
60    switch (type()) {
61    case TypeInt8:
62        return "Int8";
63        break;
64    case TypeUint8:
65        return "UInt8";
66        break;
67    case TypeUint8Clamped:
68        return "UInt8Clamped";
69        break;
70    case TypeInt16:
71        return "Int16";
72        break;
73    case TypeUint16:
74        return "UInt16";
75        break;
76    case TypeInt32:
77        return "Int32";
78        break;
79    case TypeUint32:
80        return "Uint32";
81        break;
82    case TypeFloat32:
83        return "Float32";
84        break;
85    case TypeFloat64:
86        return "Float64";
87        break;
88    case TypeDataView:
89        return "DataView";
90        break;
91    }
92    ASSERT_NOT_REACHED();
93    return "Unknown";
94}
95
96}
97