diff options
author | Ulf Hermann <ulf.hermann@qt.io> | 2020-09-10 18:25:02 +0200 |
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committer | Ulf Hermann <ulf.hermann@qt.io> | 2020-09-19 11:14:30 +0200 |
commit | 5c808073af5b8f1290602fcccf60666c9a3682f8 (patch) | |
tree | 97545220e79498a2dc2bb95f41da14ecce75cbd0 /src/corelib/kernel/qiterable_p.h | |
parent | b30801f64db5211bfb4392f13a6ff06d30288cb5 (diff) |
Extend QSequentialIterable and add QAssociativeIterable
And add mutable iterators. This requires some refactoring of the
existing iterators.
Task-number: QTBUG-81716
Change-Id: I61b3a3e8c0df5fd449679257a29d9f0c3d19c4f0
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Diffstat (limited to 'src/corelib/kernel/qiterable_p.h')
-rw-r--r-- | src/corelib/kernel/qiterable_p.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/corelib/kernel/qiterable_p.h b/src/corelib/kernel/qiterable_p.h new file mode 100644 index 0000000000..33b190a59a --- /dev/null +++ b/src/corelib/kernel/qiterable_p.h @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QITERABLE_P_H +#define QITERABLE_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 <QtCore/qglobal.h> +#include <QtCore/qvariant.h> + +QT_BEGIN_NAMESPACE + +namespace QIterablePrivate { + +const void *coerceType(QVariant &value, const QMetaType &type); + +template<typename Callback> +static QVariant retrieveElement(const QMetaType &type, Callback callback) +{ + QVariant v(type); + void *dataPtr; + if (type == QMetaType::fromType<QVariant>()) + dataPtr = &v; + else + dataPtr = v.data(); + callback(dataPtr); + return v; +} + +} // namespace QIterablePrivate + +QT_END_NAMESPACE + +#endif // QITERABLE_P_H |