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
133
134
|
/*
* Copyright (C) 2013 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.
*/
#ifndef JSMap_h
#define JSMap_h
#include "JSDestructibleObject.h"
#include "JSObject.h"
#include "MapData.h"
namespace JSC {
class JSMapIterator;
class JSMap : public JSDestructibleObject {
public:
typedef JSDestructibleObject Base;
friend class JSMapIterator;
// Our marking functions expect Entry to maintain this layout, and have all
// fields be WriteBarrier<Unknown>
class Entry {
private:
WriteBarrier<Unknown> m_key;
WriteBarrier<Unknown> m_value;
public:
const WriteBarrier<Unknown>& key() const
{
return m_key;
}
const WriteBarrier<Unknown>& value() const
{
return m_value;
}
void visitChildren(SlotVisitor& visitor)
{
visitor.append(&m_key);
visitor.append(&m_value);
}
void setKey(VM& vm, const JSCell* owner, JSValue key)
{
m_key.set(vm, owner, key);
}
void setKeyWithoutWriteBarrier(JSValue key)
{
m_key.setWithoutWriteBarrier(key);
}
void setValue(VM& vm, const JSCell* owner, JSValue value)
{
m_value.set(vm, owner, value);
}
void clear()
{
m_key.clear();
m_value.clear();
}
};
typedef MapDataImpl<Entry, JSMapIterator> MapData;
DECLARE_EXPORT_INFO;
static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info());
}
static JSMap* create(VM& vm, Structure* structure)
{
JSMap* instance = new (NotNull, allocateCell<JSMap>(vm.heap)) JSMap(vm, structure);
instance->finishCreation(vm);
return instance;
}
static JSMap* create(ExecState* exec, Structure* structure)
{
return create(exec->vm(), structure);
}
bool has(ExecState*, JSValue);
size_t size(ExecState*);
JSValue get(ExecState*, JSValue);
JS_EXPORT_PRIVATE void set(ExecState*, JSValue key, JSValue value);
void clear(ExecState*);
bool remove(ExecState*, JSValue);
private:
JSMap(VM& vm, Structure* structure)
: Base(vm, structure)
, m_mapData(vm, this)
{
}
static void destroy(JSCell*);
static size_t estimatedSize(JSCell*);
static void visitChildren(JSCell*, SlotVisitor&);
static void copyBackingStore(JSCell*, CopyVisitor&, CopyToken);
MapData m_mapData;
};
}
#endif // !defined(JSMap_h)
|
