1 /*
2 * Copyright (C) 2010 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "JSDOMStringMap.h"
28
29 #include "DOMStringMap.h"
30 #include <wtf/text/AtomicString.h>
31
32 using namespace JSC;
33
34 namespace WebCore {
35
canGetItemsForName(ExecState *,DOMStringMap * impl,const Identifier & propertyName)36 bool JSDOMStringMap::canGetItemsForName(ExecState*, DOMStringMap* impl, const Identifier& propertyName)
37 {
38 return impl->contains(identifierToAtomicString(propertyName));
39 }
40
nameGetter(ExecState * exec,JSValue slotBase,const Identifier & propertyName)41 JSValue JSDOMStringMap::nameGetter(ExecState* exec, JSValue slotBase, const Identifier& propertyName)
42 {
43 JSDOMStringMap* thisObj = static_cast<JSDOMStringMap*>(asObject(slotBase));
44 return jsString(exec, thisObj->impl()->item(identifierToAtomicString(propertyName)));
45 }
46
getOwnPropertyNames(ExecState * exec,PropertyNameArray & propertyNames,EnumerationMode mode)47 void JSDOMStringMap::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
48 {
49 Vector<String> names;
50 m_impl->getNames(names);
51 size_t length = names.size();
52 for (size_t i = 0; i < length; ++i)
53 propertyNames.add(Identifier(exec, stringToUString(names[i])));
54
55 Base::getOwnPropertyNames(exec, propertyNames, mode);
56 }
57
deleteProperty(ExecState * exec,const Identifier & propertyName)58 bool JSDOMStringMap::deleteProperty(ExecState* exec, const Identifier& propertyName)
59 {
60 // Only perform the custom delete if the object doesn't have a native property by this name.
61 // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
62 // the native property slots manually.
63 PropertySlot slot;
64 if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot))
65 return false;
66
67 JSValue prototype = this->prototype();
68 if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName))
69 return false;
70
71 ExceptionCode ec = 0;
72 m_impl->deleteItem(identifierToString(propertyName), ec);
73 setDOMException(exec, ec);
74
75 return true;
76 }
77
putDelegate(ExecState * exec,const Identifier & propertyName,JSValue value,PutPropertySlot &)78 bool JSDOMStringMap::putDelegate(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot&)
79 {
80 // Only perform the custom put if the object doesn't have a native property by this name.
81 // Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
82 // the native property slots manually.
83 PropertySlot slot;
84 if (getStaticValueSlot<JSDOMStringMap, Base>(exec, s_info.propHashTable(exec), this, propertyName, slot))
85 return false;
86
87 JSValue prototype = this->prototype();
88 if (prototype.isObject() && asObject(prototype)->hasProperty(exec, propertyName))
89 return false;
90
91 String stringValue = ustringToString(value.toString(exec));
92 if (exec->hadException())
93 return true;
94
95 ExceptionCode ec = 0;
96 impl()->setItem(identifierToString(propertyName), stringValue, ec);
97 setDOMException(exec, ec);
98
99 return true;
100 }
101
102 } // namespace WebCore
103