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
135
136
137
138
139
140
141
142
143
144
145
146
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QV4STRING_H
#define QV4STRING_H
#include <QtCore/qstring.h>
#include "qv4managed_p.h"
QT_BEGIN_NAMESPACE
namespace QV4 {
struct ExecutionEngine;
struct Identifier;
struct Q_QML_EXPORT String : public Managed {
enum StringType {
StringType_Unknown,
StringType_Regular,
StringType_UInt,
StringType_ArrayIndex
};
String() : Managed(0), identifier(0), stringHash(UINT_MAX)
{ vtbl = &static_vtbl; type = Type_String; subtype = StringType_Unknown; }
String(ExecutionEngine *engine, const QString &text);
~String() { _data = 0; }
inline bool isEqualTo(const String *other) const {
if (this == other)
return true;
if (hashValue() != other->hashValue())
return false;
if (identifier && identifier == other->identifier)
return true;
if (subtype >= StringType_UInt && subtype == other->subtype)
return true;
return toQString() == other->toQString();
}
inline bool compare(const String *other) {
return toQString() < other->toQString();
}
inline bool isEmpty() const { return _text.isEmpty(); }
inline const QString &toQString() const {
return _text;
}
inline unsigned hashValue() const {
if (subtype == StringType_Unknown)
createHashValue();
return stringHash;
}
uint asArrayIndex() const {
if (subtype == StringType_Unknown)
createHashValue();
if (subtype == StringType_ArrayIndex)
return stringHash;
return UINT_MAX;
}
uint toUInt(bool *ok) const;
void makeIdentifier() {
if (identifier)
return;
makeIdentifierImpl();
}
void makeIdentifierImpl();
void createHashValue() const;
static uint createHashValue(const QChar *ch, int length);
static uint createHashValue(const char *ch, int length);
bool startsWithUpper() const {
return _text.length() && _text.at(0).isUpper();
}
int length() const {
return _text.length();
}
QString _text;
mutable Identifier *identifier;
mutable uint stringHash;
protected:
static void destroy(Managed *);
static Value get(Managed *m, String *name, bool *hasProperty);
static Value getIndexed(Managed *m, uint index, bool *hasProperty);
static void put(Managed *m, String *name, const Value &value);
static void putIndexed(Managed *m, uint index, const Value &value);
static PropertyAttributes query(const Managed *m, String *name);
static PropertyAttributes queryIndexed(const Managed *m, uint index);
static bool deleteProperty(Managed *, String *);
static bool deleteIndexedProperty(Managed *m, uint index);
static bool isEqualTo(Managed *that, Managed *o);
static const ManagedVTable static_vtbl;
};
}
QT_END_NAMESPACE
#endif
|
