diff -r 000000000000 -r 1918ee327afb src/xmlpatterns/data/qatomiccaster_p.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/xmlpatterns/data/qatomiccaster_p.h Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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. + +#ifndef Patternist_AtomicCaster_H +#define Patternist_AtomicCaster_H + +#include "qdynamiccontext_p.h" +#include "qitem_p.h" +#include "qatomictypedispatch_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + /** + * @short AtomicCaster is an abstract base class for classes + * that performs casting between two atomic values of specific types. + * + * @ingroup Patternist_xdm + * @author Frans Englich + */ + class AtomicCaster : public AtomicTypeVisitorResult + { + public: + typedef QExplicitlySharedDataPointer Ptr; + AtomicCaster(); + virtual ~AtomicCaster(); + + /** + * Casts @p from to an atomic value of the type this class + * casts to, and returns that value. The @p context is used + * for reporting errors in case the casting fails, and to in general + * access information from the dynamic context. + */ + virtual Item castFrom(const Item &from, + const QExplicitlySharedDataPointer &context) const = 0; + }; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif