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main.cpp Example File
script/marshal/main.cpp

 /****************************************************************************
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 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
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 ** This file is part of the examples of the Qt Toolkit.
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 ** Software or, alternatively, in accordance with the terms contained in
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 ** GNU Lesser General Public License Usage
 ** Alternatively, this file may be used under the terms of the GNU Lesser
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 ** Foundation and appearing in the file LICENSE.LGPL included in the
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 #include <QtCore>
 #include <QtScript>

 template <class Container>
 QScriptValue toScriptValue(QScriptEngine *eng, const Container &cont)
 {
     QScriptValue a = eng->newArray();
     typename Container::const_iterator begin = cont.begin();
     typename Container::const_iterator end = cont.end();
     typename Container::const_iterator it;
     for (it = begin; it != end; ++it)
         a.setProperty(quint32(it - begin), qScriptValueFromValue(eng, *it));
     return a;
 }

 template <class Container>
 void fromScriptValue(const QScriptValue &value, Container &cont)
 {
     quint32 len = value.property("length").toUInt32();
     for (quint32 i = 0; i < len; ++i) {
         QScriptValue item = value.property(i);
         typedef typename Container::value_type ContainerValue;
         cont.push_back(qscriptvalue_cast<ContainerValue>(item));
     }
 }

 typedef QVector<int> IntVector;
 typedef QVector<QString> StringVector;

 Q_DECLARE_METATYPE(IntVector)
 Q_DECLARE_METATYPE(StringVector)

 int main(int argc, char *argv[])
 {
     QCoreApplication app(argc, argv);

     QScriptEngine eng;
     // register our custom types
     qScriptRegisterMetaType<IntVector>(&eng, toScriptValue, fromScriptValue);
     qScriptRegisterMetaType<StringVector>(&eng, toScriptValue, fromScriptValue);

     QScriptValue val = eng.evaluate("[1, 4, 7, 11, 50, 3, 19, 60]");

     fprintf(stdout, "Script array: %s\n", qPrintable(val.toString()));

     IntVector iv = qscriptvalue_cast<IntVector>(val);

     fprintf(stdout, "qscriptvalue_cast to QVector<int>: ");
     for (int i = 0; i < iv.size(); ++i)
         fprintf(stdout, "%s%d", (i > 0) ? "," : "", iv.at(i));
     fprintf(stdout, "\n");

     val = eng.evaluate("[9, 'foo', 46.5, 'bar', 'Qt', 555, 'hello']");

     fprintf(stdout, "Script array: %s\n", qPrintable(val.toString()));

     StringVector sv = qscriptvalue_cast<StringVector>(val);

     fprintf(stdout, "qscriptvalue_cast to QVector<QString>: ");
     for (int i = 0; i < sv.size(); ++i)
         fprintf(stdout, "%s%s", (i > 0) ? "," : "", qPrintable(sv.at(i)));
     fprintf(stdout, "\n");

     return 0;
 }

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