1/*
2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 *
19 */
20
21#ifndef PropertyNameArray_h
22#define PropertyNameArray_h
23
24#include "CallFrame.h"
25#include "Identifier.h"
26#include <wtf/HashSet.h>
27#include <wtf/OwnArrayPtr.h>
28#include <wtf/Vector.h>
29
30namespace JSC {
31
32 class Structure;
33 class StructureChain;
34
35 // FIXME: Rename to PropertyNameArray.
36 class PropertyNameArrayData : public RefCounted<PropertyNameArrayData> {
37 public:
38 typedef Vector<Identifier, 20> PropertyNameVector;
39
40 static PassRefPtr<PropertyNameArrayData> create() { return adoptRef(p: new PropertyNameArrayData); }
41
42 PropertyNameVector& propertyNameVector() { return m_propertyNameVector; }
43
44 private:
45 PropertyNameArrayData()
46 {
47 }
48
49 PropertyNameVector m_propertyNameVector;
50 };
51
52 // FIXME: Rename to PropertyNameArrayBuilder.
53 class PropertyNameArray {
54 public:
55 PropertyNameArray(JSGlobalData* globalData)
56 : m_data(PropertyNameArrayData::create())
57 , m_globalData(globalData)
58 , m_shouldCache(true)
59 {
60 }
61
62 PropertyNameArray(ExecState* exec)
63 : m_data(PropertyNameArrayData::create())
64 , m_globalData(&exec->globalData())
65 , m_shouldCache(true)
66 {
67 }
68
69 JSGlobalData* globalData() { return m_globalData; }
70
71 void add(const Identifier& identifier) { add(identifier.ustring().rep()); }
72 void add(UString::Rep*);
73 void addKnownUnique(UString::Rep* identifier) { m_data->propertyNameVector().append(val: Identifier(m_globalData, identifier)); }
74
75 Identifier& operator[](unsigned i) { return m_data->propertyNameVector()[i]; }
76 const Identifier& operator[](unsigned i) const { return m_data->propertyNameVector()[i]; }
77
78 void setData(PassRefPtr<PropertyNameArrayData> data) { m_data = data; }
79 PropertyNameArrayData* data() { return m_data.get(); }
80 PassRefPtr<PropertyNameArrayData> releaseData() { return m_data.release(); }
81
82 // FIXME: Remove these functions.
83 typedef PropertyNameArrayData::PropertyNameVector::const_iterator const_iterator;
84 size_t size() const { return m_data->propertyNameVector().size(); }
85 const_iterator begin() const { return m_data->propertyNameVector().begin(); }
86 const_iterator end() const { return m_data->propertyNameVector().end(); }
87
88 private:
89 typedef HashSet<UString::Rep*, PtrHash<UString::Rep*> > IdentifierSet;
90
91 RefPtr<PropertyNameArrayData> m_data;
92 IdentifierSet m_set;
93 JSGlobalData* m_globalData;
94 bool m_shouldCache;
95 };
96
97} // namespace JSC
98
99#endif // PropertyNameArray_h
100

source code of qtscript/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyNameArray.h