1 /*
2 * Copyright (C) 2003, 2008 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 "runtime_array.h"
28
29 #include <runtime/ArrayPrototype.h>
30 #include <runtime/Error.h>
31 #include <runtime/PropertyNameArray.h>
32 #include "JSDOMBinding.h"
33
34 using namespace WebCore;
35
36 namespace JSC {
37
38 const ClassInfo RuntimeArray::s_info = { "RuntimeArray", &JSArray::s_info, 0, 0 };
39
RuntimeArray(ExecState * exec,Bindings::Array * array)40 RuntimeArray::RuntimeArray(ExecState* exec, Bindings::Array* array)
41 // FIXME: deprecatedGetDOMStructure uses the prototype off of the wrong global object
42 // We need to pass in the right global object for "array".
43 : JSArray(exec->globalData(), deprecatedGetDOMStructure<RuntimeArray>(exec))
44 {
45 ASSERT(inherits(&s_info));
46 setSubclassData(array);
47 }
48
~RuntimeArray()49 RuntimeArray::~RuntimeArray()
50 {
51 delete getConcreteArray();
52 }
53
lengthGetter(ExecState *,JSValue slotBase,const Identifier &)54 JSValue RuntimeArray::lengthGetter(ExecState*, JSValue slotBase, const Identifier&)
55 {
56 RuntimeArray* thisObj = static_cast<RuntimeArray*>(asObject(slotBase));
57 return jsNumber(thisObj->getLength());
58 }
59
indexGetter(ExecState * exec,JSValue slotBase,unsigned index)60 JSValue RuntimeArray::indexGetter(ExecState* exec, JSValue slotBase, unsigned index)
61 {
62 RuntimeArray* thisObj = static_cast<RuntimeArray*>(asObject(slotBase));
63 return thisObj->getConcreteArray()->valueAt(exec, index);
64 }
65
getOwnPropertyNames(ExecState * exec,PropertyNameArray & propertyNames,EnumerationMode mode)66 void RuntimeArray::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
67 {
68 unsigned length = getLength();
69 for (unsigned i = 0; i < length; ++i)
70 propertyNames.add(Identifier::from(exec, i));
71
72 if (mode == IncludeDontEnumProperties)
73 propertyNames.add(exec->propertyNames().length);
74
75 JSObject::getOwnPropertyNames(exec, propertyNames, mode);
76 }
77
getOwnPropertySlot(ExecState * exec,const Identifier & propertyName,PropertySlot & slot)78 bool RuntimeArray::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
79 {
80 if (propertyName == exec->propertyNames().length) {
81 slot.setCacheableCustom(this, lengthGetter);
82 return true;
83 }
84
85 bool ok;
86 unsigned index = propertyName.toArrayIndex(ok);
87 if (ok) {
88 if (index < getLength()) {
89 slot.setCustomIndex(this, index, indexGetter);
90 return true;
91 }
92 }
93
94 return JSObject::getOwnPropertySlot(exec, propertyName, slot);
95 }
96
getOwnPropertyDescriptor(ExecState * exec,const Identifier & propertyName,PropertyDescriptor & descriptor)97 bool RuntimeArray::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
98 {
99 if (propertyName == exec->propertyNames().length) {
100 PropertySlot slot;
101 slot.setCustom(this, lengthGetter);
102 descriptor.setDescriptor(slot.getValue(exec, propertyName), ReadOnly | DontDelete | DontEnum);
103 return true;
104 }
105
106 bool ok;
107 unsigned index = propertyName.toArrayIndex(ok);
108 if (ok) {
109 if (index < getLength()) {
110 PropertySlot slot;
111 slot.setCustomIndex(this, index, indexGetter);
112 descriptor.setDescriptor(slot.getValue(exec, propertyName), DontDelete | DontEnum);
113 return true;
114 }
115 }
116
117 return JSObject::getOwnPropertyDescriptor(exec, propertyName, descriptor);
118 }
119
getOwnPropertySlot(ExecState * exec,unsigned index,PropertySlot & slot)120 bool RuntimeArray::getOwnPropertySlot(ExecState *exec, unsigned index, PropertySlot& slot)
121 {
122 if (index < getLength()) {
123 slot.setCustomIndex(this, index, indexGetter);
124 return true;
125 }
126
127 return JSObject::getOwnPropertySlot(exec, index, slot);
128 }
129
put(ExecState * exec,const Identifier & propertyName,JSValue value,PutPropertySlot & slot)130 void RuntimeArray::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
131 {
132 if (propertyName == exec->propertyNames().length) {
133 throwError(exec, createRangeError(exec, "Range error"));
134 return;
135 }
136
137 bool ok;
138 unsigned index = propertyName.toArrayIndex(ok);
139 if (ok) {
140 getConcreteArray()->setValueAt(exec, index, value);
141 return;
142 }
143
144 JSObject::put(exec, propertyName, value, slot);
145 }
146
put(ExecState * exec,unsigned index,JSValue value)147 void RuntimeArray::put(ExecState* exec, unsigned index, JSValue value)
148 {
149 if (index >= getLength()) {
150 throwError(exec, createRangeError(exec, "Range error"));
151 return;
152 }
153
154 getConcreteArray()->setValueAt(exec, index, value);
155 }
156
deleteProperty(ExecState *,const Identifier &)157 bool RuntimeArray::deleteProperty(ExecState*, const Identifier&)
158 {
159 return false;
160 }
161
deleteProperty(ExecState *,unsigned)162 bool RuntimeArray::deleteProperty(ExecState*, unsigned)
163 {
164 return false;
165 }
166
167 }
168