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diff --git a/Source/JavaScriptCore/qt/api/qscriptprogram_p.h b/Source/JavaScriptCore/qt/api/qscriptprogram_p.h
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+++ b/Source/JavaScriptCore/qt/api/qscriptprogram_p.h
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+/*
+    Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef qscriptprogram_p_h
+#define qscriptprogram_p_h
+
+#include "qscriptconverter_p.h"
+#include "qscriptprogram.h"
+#include <JavaScriptCore/JavaScript.h>
+#include <QtCore/qshareddata.h>
+#include <QtCore/qstring.h>
+
+/*
+   FIXME The QScriptProgramPrivate potentially could be much faster. In current implementation we
+   gain CPU time only by avoiding QString -> JSStringRef conversion. In the ideal world we should
+   have a function inside the JSC C API that could provide us "parse once, execute multiple times"
+   functionality.
+*/
+
+class QScriptProgramPrivate : public QSharedData {
+public:
+    inline static QScriptProgramPrivate* get(const QScriptProgram& program);
+    inline QScriptProgramPrivate();
+    inline QScriptProgramPrivate(const QString& sourceCode,
+                   const QString fileName,
+                   int firstLineNumber);
+
+    inline ~QScriptProgramPrivate();
+
+    inline bool isNull() const;
+
+    inline QString sourceCode() const;
+    inline QString fileName() const;
+    inline int firstLineNumber() const;
+
+    inline bool operator==(const QScriptProgramPrivate& other) const;
+    inline bool operator!=(const QScriptProgramPrivate& other) const;
+
+    inline operator JSStringRef() const;
+    inline JSStringRef file() const;
+    inline int line() const;
+private:
+    JSStringRef m_program;
+    JSStringRef m_fileName;
+    int m_line;
+};
+
+QScriptProgramPrivate* QScriptProgramPrivate::get(const QScriptProgram& program)
+{
+    return const_cast<QScriptProgramPrivate*>(program.d_ptr.constData());
+}
+
+QScriptProgramPrivate::QScriptProgramPrivate()
+    : m_program(0)
+    , m_fileName(0)
+    , m_line(-1)
+{}
+
+QScriptProgramPrivate::QScriptProgramPrivate(const QString& sourceCode,
+               const QString fileName,
+               int firstLineNumber)
+                   : m_program(QScriptConverter::toString(sourceCode))
+                   , m_fileName(QScriptConverter::toString(fileName))
+                   , m_line(firstLineNumber)
+{}
+
+QScriptProgramPrivate::~QScriptProgramPrivate()
+{
+    if (!isNull()) {
+        JSStringRelease(m_program);
+        JSStringRelease(m_fileName);
+    }
+}
+
+bool QScriptProgramPrivate::isNull() const
+{
+    return !m_program;
+}
+
+QString QScriptProgramPrivate::sourceCode() const
+{
+    return QScriptConverter::toString(m_program);
+}
+
+QString QScriptProgramPrivate::fileName() const
+{
+    return QScriptConverter::toString(m_fileName);
+}
+
+int QScriptProgramPrivate::firstLineNumber() const
+{
+    return m_line;
+}
+
+bool QScriptProgramPrivate::operator==(const QScriptProgramPrivate& other) const
+{
+    return m_line == other.m_line
+            && JSStringIsEqual(m_fileName, other.m_fileName)
+            && JSStringIsEqual(m_program, other.m_program);
+}
+
+bool QScriptProgramPrivate::operator!=(const QScriptProgramPrivate& other) const
+{
+    return m_line != other.m_line
+            || !JSStringIsEqual(m_fileName, other.m_fileName)
+            || !JSStringIsEqual(m_program, other.m_program);
+}
+
+QScriptProgramPrivate::operator JSStringRef() const
+{
+    return m_program;
+}
+
+JSStringRef QScriptProgramPrivate::file() const {return m_fileName; }
+int QScriptProgramPrivate::line() const { return m_line; }
+
+#endif // qscriptprogram_p_h