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
31 namespace WTF {
32
ArrayBufferView(PassRefPtr<ArrayBuffer> buffer,unsigned byteOffset)33 ArrayBufferView::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
~ArrayBufferView()46 ArrayBufferView::~ArrayBufferView()
47 {
48 if (m_buffer)
49 m_buffer->removeView(this);
50 }
51
neuter()52 void ArrayBufferView::neuter()
53 {
54 m_buffer = nullptr;
55 m_byteOffset = 0;
56 }
57
typeName()58 const 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