1 /*
2 * Copyright (C) 2007, 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 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "JSVariableObject.h"
31
32 #include "PropertyNameArray.h"
33
34 namespace JSC {
35
deleteProperty(ExecState * exec,const Identifier & propertyName)36 bool JSVariableObject::deleteProperty(ExecState* exec, const Identifier& propertyName)
37 {
38 if (symbolTable().contains(propertyName.ustring().rep()))
39 return false;
40
41 return JSObject::deleteProperty(exec, propertyName);
42 }
43
getPropertyNames(ExecState * exec,PropertyNameArray & propertyNames)44 void JSVariableObject::getPropertyNames(ExecState* exec, PropertyNameArray& propertyNames)
45 {
46 SymbolTable::const_iterator end = symbolTable().end();
47 for (SymbolTable::const_iterator it = symbolTable().begin(); it != end; ++it) {
48 if (!(it->second.getAttributes() & DontEnum))
49 propertyNames.add(Identifier(exec, it->first.get()));
50 }
51
52 JSObject::getPropertyNames(exec, propertyNames);
53 }
54
getPropertyAttributes(ExecState * exec,const Identifier & propertyName,unsigned & attributes) const55 bool JSVariableObject::getPropertyAttributes(ExecState* exec, const Identifier& propertyName, unsigned& attributes) const
56 {
57 SymbolTableEntry entry = symbolTable().get(propertyName.ustring().rep());
58 if (!entry.isNull()) {
59 attributes = entry.getAttributes() | DontDelete;
60 return true;
61 }
62 return JSObject::getPropertyAttributes(exec, propertyName, attributes);
63 }
64
isVariableObject() const65 bool JSVariableObject::isVariableObject() const
66 {
67 return true;
68 }
69
70 } // namespace JSC
71