include/QtCore/qiterable_impl.h

0001 // Copyright (C) 2020 The Qt Company Ltd.
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QITERABLE_IMPL_H
0005 #define QITERABLE_IMPL_H
0006
0007 #include <QtCore/qglobal.h>
0008 #include <QtCore/qvariant.h>
0009
0010 QT_BEGIN_NAMESPACE
0011
0012 namespace QIterablePrivate {
0013
0014 template<typename Callback>
0015 static QVariant retrieveElement(QMetaType type, Callback callback)
0016 {
0017     QVariant v(type);
0018     void *dataPtr;
0019     if (type == QMetaType::fromType<QVariant>())
0020         dataPtr = &v;
0021     else
0022         dataPtr = v.data();
0023     callback(dataPtr);
0024     return v;
0025 }
0026
0027 } // namespace QIterablePrivate
0028
0029 QT_END_NAMESPACE
0030
0031 #endif // QITERABLE_IMPL_H