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 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 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 "JSByteArray.h"
28
29 #include "JSGlobalObject.h"
30 #include "PropertyNameArray.h"
31
32 using namespace WTF;
33
34 namespace JSC {
35
36 const ClassInfo JSByteArray::s_defaultInfo = { "ByteArray", 0, 0, 0 };
37
JSByteArray(ExecState * exec,PassRefPtr<Structure> structure,ByteArray * storage,const JSC::ClassInfo * classInfo)38 JSByteArray::JSByteArray(ExecState* exec, PassRefPtr<Structure> structure, ByteArray* storage, const JSC::ClassInfo* classInfo)
39 : JSObject(structure)
40 , m_storage(storage)
41 , m_classInfo(classInfo)
42 {
43 putDirect(exec->globalData().propertyNames->length, jsNumber(exec, m_storage->length()), ReadOnly | DontDelete);
44 }
45
createStructure(JSValuePtr prototype)46 PassRefPtr<Structure> JSByteArray::createStructure(JSValuePtr prototype)
47 {
48 PassRefPtr<Structure> result = Structure::create(prototype, TypeInfo(ObjectType));
49 return result;
50 }
51
getOwnPropertySlot(ExecState * exec,const Identifier & propertyName,PropertySlot & slot)52 bool JSByteArray::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
53 {
54 bool ok;
55 unsigned index = propertyName.toUInt32(&ok, false);
56 if (ok && canAccessIndex(index)) {
57 slot.setValue(getIndex(exec, index));
58 return true;
59 }
60 return JSObject::getOwnPropertySlot(exec, propertyName, slot);
61 }
62
getOwnPropertySlot(ExecState * exec,unsigned propertyName,PropertySlot & slot)63 bool JSByteArray::getOwnPropertySlot(ExecState* exec, unsigned propertyName, PropertySlot& slot)
64 {
65 if (canAccessIndex(propertyName)) {
66 slot.setValue(getIndex(exec, propertyName));
67 return true;
68 }
69 return JSObject::getOwnPropertySlot(exec, Identifier::from(exec, propertyName), slot);
70 }
71
put(ExecState * exec,const Identifier & propertyName,JSValuePtr value,PutPropertySlot & slot)72 void JSByteArray::put(ExecState* exec, const Identifier& propertyName, JSValuePtr value, PutPropertySlot& slot)
73 {
74 bool ok;
75 unsigned index = propertyName.toUInt32(&ok, false);
76 if (ok) {
77 setIndex(exec, index, value);
78 return;
79 }
80 JSObject::put(exec, propertyName, value, slot);
81 }
82
put(ExecState * exec,unsigned propertyName,JSValuePtr value)83 void JSByteArray::put(ExecState* exec, unsigned propertyName, JSValuePtr value)
84 {
85 setIndex(exec, propertyName, value);
86 }
87
getPropertyNames(ExecState * exec,PropertyNameArray & propertyNames)88 void JSByteArray::getPropertyNames(ExecState* exec, PropertyNameArray& propertyNames)
89 {
90 unsigned length = m_storage->length();
91 for (unsigned i = 0; i < length; ++i)
92 propertyNames.add(Identifier::from(exec, i));
93 JSObject::getPropertyNames(exec, propertyNames);
94 }
95
96 }
97
98