qt/api/qscriptstring_p.h

   1 /*
   2     Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
   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 #ifndef qscriptstring_p_h
  21 #define qscriptstring_p_h
  22
  23 #include "qscriptconverter_p.h"
  24 #include "qscriptstring.h"
  25 #include <JavaScriptCore/JavaScript.h>
  26 #include <QtCore/qnumeric.h>
  27 #include <QtCore/qshareddata.h>
  28
  29 class QScriptStringPrivate : public QSharedData {
  30 public:
  31     inline QScriptStringPrivate();
  32     inline QScriptStringPrivate(const QString& qtstring);
  33     inline ~QScriptStringPrivate();
  34
  35     static inline QScriptString get(QScriptStringPrivate* d);
  36     static inline QScriptStringPtr get(const QScriptString& p);
  37
  38     inline bool isValid() const;
  39
  40     inline bool operator==(const QScriptStringPrivate& other) const;
  41     inline bool operator!=(const QScriptStringPrivate& other) const;
  42
  43     inline quint32 toArrayIndex(bool* ok = 0) const;
  44
  45     inline QString toString() const;
  46
  47     inline quint64 id() const;
  48
  49     inline operator JSStringRef() const;
  50
  51 private:
  52     JSStringRef m_string;
  53 };
  54
  55
  56 QScriptStringPrivate::QScriptStringPrivate()
  57     : m_string(0)
  58 {}
  59
  60 QScriptStringPrivate::QScriptStringPrivate(const QString& qtstring)
  61     : m_string(QScriptConverter::toString(qtstring))
  62 {}
  63
  64 QScriptStringPrivate::~QScriptStringPrivate()
  65 {
  66     if (isValid())
  67         JSStringRelease(m_string);
  68 }
  69
  70 QScriptString QScriptStringPrivate::get(QScriptStringPrivate* d)
  71 {
  72     Q_ASSERT(d);
  73     return QScriptString(d);
  74 }
  75
  76 QScriptStringPtr QScriptStringPrivate::get(const QScriptString& p)
  77 {
  78     return p.d_ptr;
  79 }
  80
  81 bool QScriptStringPrivate::isValid() const
  82 {
  83     return m_string;
  84 }
  85
  86 bool QScriptStringPrivate::operator==(const QScriptStringPrivate& other) const
  87 {
  88     return isValid() && other.isValid() && JSStringIsEqual(m_string, other.m_string);
  89 }
  90
  91 bool QScriptStringPrivate::operator!=(const QScriptStringPrivate& other) const
  92 {
  93     return isValid() && other.isValid() && !JSStringIsEqual(m_string, other.m_string);
  94 }
  95
  96 quint32 QScriptStringPrivate::toArrayIndex(bool* ok) const
  97 {
  98     quint32 idx = QScriptConverter::toArrayIndex(m_string);
  99     if (ok)
 100         *ok = (idx != 0xffffffff);
 101     return idx;
 102 }
 103
 104 QString QScriptStringPrivate::toString() const
 105 {
 106     return QScriptConverter::toString(m_string);
 107 }
 108
 109 quint64 QScriptStringPrivate::id() const
 110 {
 111     return reinterpret_cast<quint32>(m_string);
 112 }
 113
 114 /*!
 115     \internal
 116     This method should be used for invoking JSC functions.
 117     \note This method keeps ownership of an internal JSStringRef.
 118 */
 119 QScriptStringPrivate::operator JSStringRef() const
 120 {
 121     return m_string;
 122 }
 123
 124 #endif // qscriptstring_p_h