1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JSVariableObject.h"
#include "PropertyNameArray.h"
#include "PropertyDescriptor.h"
namespace JSC {
bool JSVariableObject::deleteProperty(ExecState* exec, const Identifier& propertyName)
{
if (symbolTable().contains(propertyName.ustring().rep()))
return false;
return JSObject::deleteProperty(exec, propertyName);
}
void JSVariableObject::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
SymbolTable::const_iterator end = symbolTable().end();
for (SymbolTable::const_iterator it = symbolTable().begin(); it != end; ++it) {
if (!(it->second.getAttributes() & DontEnum) || (mode == IncludeDontEnumProperties))
propertyNames.add(Identifier(exec, it->first.get()));
}
JSObject::getOwnPropertyNames(exec, propertyNames, mode);
}
bool JSVariableObject::isVariableObject() const
{
return true;
}
bool JSVariableObject::symbolTableGet(const Identifier& propertyName, PropertyDescriptor& descriptor)
{
SymbolTableEntry entry = symbolTable().inlineGet(propertyName.ustring().rep());
if (!entry.isNull()) {
descriptor.setDescriptor(registerAt(entry.getIndex()).jsValue(), entry.getAttributes() | DontDelete);
return true;
}
return false;
}
} // namespace JSC
|
