src/script/api/qscriptstring_impl_p.h


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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtScript module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL-ONLY$
** GNU Lesser General Public License Usage
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSCRIPTSTRING__IMPL_P_H
#define QSCRIPTSTRING__IMPL_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qscriptconverter_p.h"
#include "qscriptstring_p.h"
#include "qscriptengine_p.h"
#include <QtCore/qnumeric.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qhash.h>
#include "qscriptisolate_p.h"

QT_BEGIN_NAMESPACE

QScriptStringPrivate::QScriptStringPrivate()
    : m_engine(0)
{}

QScriptStringPrivate::QScriptStringPrivate(QScriptEnginePrivate *engine, v8::Handle<v8::String> str)
    : m_engine(engine)
{
    const v8::String::Utf8Value utf8(str);
    m_string = v8::Persistent<v8::String>::New(v8::String::NewSymbol(*utf8, utf8.length()));
    Q_ASSERT(!m_string.IsEmpty());
    m_engine->registerString(this);
}

QScriptStringPrivate::~QScriptStringPrivate()
{
    if (isValid()) {
        QScriptIsolate api(m_engine);
        m_engine->unregisterString(this);
        m_string.Dispose();
    }
}

/*!
  \internal
  Change this string to an invalid one
*/
inline void QScriptStringPrivate::reinitialize()
{
    if (isValid()) {
        m_engine->unregisterString(this);
        m_string.Dispose();
        m_string.Clear();
        m_engine = 0;
    }
    Q_ASSERT(!isValid());
}

QScriptString QScriptStringPrivate::get(QScriptStringPrivate* d)
{
    Q_ASSERT(d);
    return QScriptString(d);
}

QScriptString QScriptStringPrivate::get(QScriptPassPointer<QScriptStringPrivate> d)
{
    Q_ASSERT(d);
    return QScriptString(d);
}

QScriptStringPrivate* QScriptStringPrivate::get(const QScriptString& p)
{
    return p.d_ptr.data();
}

bool QScriptStringPrivate::isValid() const
{
    return !m_string.IsEmpty();
}

bool QScriptStringPrivate::operator==(const QScriptStringPrivate& other) const
{
    v8::HandleScope handleScope;
    return isValid() && other.isValid() && m_string->Equals(other.m_string);
}

bool QScriptStringPrivate::operator!=(const QScriptStringPrivate& other) const
{
    v8::HandleScope handleScope;
    return isValid() && other.isValid() && !m_string->Equals(other.m_string);
}

quint32 QScriptStringPrivate::toArrayIndex(bool* ok) const
{
    quint32 idx = 0xffffffff;
    if (isValid()) {
        v8::HandleScope handleScope;
        v8::Handle<v8::Uint32> converted = m_string->ToArrayIndex();
        if (!converted.IsEmpty())
            idx = converted->Uint32Value();
    }
    if (ok)
        *ok = (idx != 0xffffffff);
    return idx;
}

QString QScriptStringPrivate::toString() const
{
    return QScriptConverter::toString(m_string);
}

quint64 QScriptStringPrivate::id() const
{
    return m_string->Hash();
}

inline QScriptStringPrivate::operator v8::Handle<v8::String>() const
{
    Q_ASSERT(isValid());
    return m_string;
}

inline v8::Handle<v8::String> QScriptStringPrivate::asV8Value()const
{
    return m_string;
}

inline QScriptEnginePrivate* QScriptStringPrivate::engine() const
{
    return m_engine;
}

QT_END_NAMESPACE

#endif