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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* Copyright (C) 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
* 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 "JSStorage.h"
#include "JSDOMBinding.h"
#include <runtime/IdentifierInlines.h>
#include <runtime/PropertyNameArray.h>
#include <wtf/text/WTFString.h>
using namespace JSC;
namespace WebCore {
bool JSStorage::nameGetter(ExecState* exec, PropertyName propertyName, JSValue& value)
{
if (propertyName.isSymbol())
return false;
ExceptionCode ec = 0;
String item = wrapped().getItem(propertyNameToString(propertyName), ec);
setDOMException(exec, ec);
if (item.isNull())
return false;
value = jsStringWithCache(exec, item);
return true;
}
bool JSStorage::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
{
JSStorage* thisObject = jsCast<JSStorage*>(cell);
// Only perform the custom delete if the object doesn't have a native property by this name.
// Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
// the native property slots manually.
PropertySlot slot(thisObject, PropertySlot::InternalMethodType::GetOwnProperty);
static_assert(!hasStaticPropertyTable, "This function does not handle static instance properties");
JSValue prototype = thisObject->prototype();
if (prototype.isObject() && asObject(prototype)->getPropertySlot(exec, propertyName, slot))
return Base::deleteProperty(thisObject, exec, propertyName);
if (propertyName.isSymbol())
return Base::deleteProperty(thisObject, exec, propertyName);
ExceptionCode ec = 0;
thisObject->wrapped().removeItem(propertyNameToString(propertyName), ec);
setDOMException(exec, ec);
return true;
}
bool JSStorage::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned propertyName)
{
static_assert(!hasStaticPropertyTable, "This function does not handle static instance properties");
return deleteProperty(cell, exec, Identifier::from(exec, propertyName));
}
void JSStorage::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
JSStorage* thisObject = jsCast<JSStorage*>(object);
ExceptionCode ec = 0;
unsigned length = thisObject->wrapped().length(ec);
setDOMException(exec, ec);
if (exec->hadException())
return;
for (unsigned i = 0; i < length; ++i) {
propertyNames.add(Identifier::fromString(exec, thisObject->wrapped().key(i, ec)));
setDOMException(exec, ec);
if (exec->hadException())
return;
}
Base::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}
bool JSStorage::putDelegate(ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot&)
{
// Only perform the custom put if the object doesn't have a native property by this name.
// Since hasProperty() would end up calling canGetItemsForName() and be fooled, we need to check
// the native property slots manually.
PropertySlot slot(this, PropertySlot::InternalMethodType::GetOwnProperty);
static_assert(!hasStaticPropertyTable, "This function does not handle static instance properties");
JSValue prototype = this->prototype();
if (prototype.isObject() && asObject(prototype)->getPropertySlot(exec, propertyName, slot))
return false;
if (propertyName.isSymbol())
return false;
String stringValue = value.toString(exec)->value(exec);
if (exec->hadException()) {
// The return value indicates whether putDelegate() should handle the put operation (which
// if true, tells the caller not to execute the generic put). It does not indicate whether
// putDelegate() did successfully complete the operation or not (which it didn't in this
// case due to the exception).
return true;
}
ExceptionCode ec = 0;
wrapped().setItem(propertyNameToString(propertyName), stringValue, ec);
setDOMException(exec, ec);
return true;
}
} // namespace WebCore
|
