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
|
/*
* 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 "JSDOMConvertStrings.h"
#include "JSDOMExceptionHandling.h"
#include <runtime/JSCInlines.h>
#include <runtime/PropertyNameArray.h>
#include <wtf/text/WTFString.h>
using namespace JSC;
namespace WebCore {
bool JSStorage::deleteProperty(JSCell* cell, ExecState* state, PropertyName propertyName)
{
auto& 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);
JSValue prototype = thisObject.getPrototypeDirect();
if (prototype.isObject() && asObject(prototype)->getPropertySlot(state, propertyName, slot))
return Base::deleteProperty(&thisObject, state, propertyName);
if (propertyName.isSymbol())
return Base::deleteProperty(&thisObject, state, propertyName);
VM& vm = state->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
propagateException(*state, scope, thisObject.wrapped().removeItem(propertyNameToString(propertyName)));
return true;
}
bool JSStorage::deletePropertyByIndex(JSCell* cell, ExecState* exec, unsigned propertyName)
{
return deleteProperty(cell, exec, Identifier::from(exec, propertyName));
}
void JSStorage::getOwnPropertyNames(JSObject* object, ExecState* state, PropertyNameArray& propertyNames, EnumerationMode mode)
{
VM& vm = state->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
auto& thisObject = *jsCast<JSStorage*>(object);
auto lengthResult = thisObject.wrapped().length();
if (lengthResult.hasException()) {
propagateException(*state, scope, lengthResult.releaseException());
return;
}
unsigned length = lengthResult.releaseReturnValue();
for (unsigned i = 0; i < length; ++i) {
auto keyResult = thisObject.wrapped().key(i);
if (keyResult.hasException()) {
propagateException(*state, scope, lengthResult.releaseException());
return;
}
propertyNames.add(Identifier::fromString(state, keyResult.releaseReturnValue()));
}
Base::getOwnPropertyNames(&thisObject, state, propertyNames, mode);
}
bool JSStorage::putDelegate(ExecState* state, PropertyName propertyName, JSValue value, PutPropertySlot&, bool& putResult)
{
VM& vm = state->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
// 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 };
JSValue prototype = this->getPrototypeDirect();
if (prototype.isObject() && asObject(prototype)->getPropertySlot(state, propertyName, slot))
return false;
if (propertyName.isSymbol())
return false;
String stringValue = value.toWTFString(state);
RETURN_IF_EXCEPTION(scope, true);
auto setItemResult = wrapped().setItem(propertyNameToString(propertyName), stringValue);
if (setItemResult.hasException()) {
propagateException(*state, scope, setItemResult.releaseException());
return true;
}
putResult = true;
return true;
}
} // namespace WebCore
|
