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Diffstat (limited to 'src/xmlpatterns/api/qvariableloader_p.h')
| -rw-r--r-- | src/xmlpatterns/api/qvariableloader_p.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/xmlpatterns/api/qvariableloader_p.h b/src/xmlpatterns/api/qvariableloader_p.h new file mode 100644 index 0000000000..7c02d9f59b --- /dev/null +++ b/src/xmlpatterns/api/qvariableloader_p.h @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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_VARIABLELOADER_P_H +#define PATTERNIST_VARIABLELOADER_P_H + +#include <QtCore/QSet> +#include <QtXmlPatterns/QXmlQuery> +#include <QtDebug> + +#include "qdynamiccontext_p.h" +#include "qexternalvariableloader_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + class VariableLoader : public ExternalVariableLoader + { + public: + typedef QHash<QXmlName, QVariant> BindingHash; + typedef QExplicitlySharedDataPointer<VariableLoader> Ptr; + + inline VariableLoader(const NamePool::Ptr &np, + const VariableLoader::Ptr &previousLoader = VariableLoader::Ptr()) : m_namePool(np) + , m_previousLoader(previousLoader) + + { + } + + virtual QPatternist::SequenceType::Ptr announceExternalVariable(const QXmlName name, + const QPatternist::SequenceType::Ptr &declaredType); + virtual QPatternist::Item::Iterator::Ptr evaluateSequence(const QXmlName name, + const QPatternist::DynamicContext::Ptr &); + + virtual QPatternist::Item evaluateSingleton(const QXmlName name, + const QPatternist::DynamicContext::Ptr &); + + void removeBinding(const QXmlName &name); + bool hasBinding(const QXmlName &name) const; + QVariant valueFor(const QXmlName &name) const; + void addBinding(const QXmlName &name, + const QVariant &value); + + bool isSameType(const QVariant &v1, + const QVariant &v2) const; + + bool invalidationRequired(const QXmlName &name, + const QVariant &variant) const; + + private: + + inline QPatternist::Item itemForName(const QXmlName &name) const; + + const NamePool::Ptr m_namePool; + VariableLoader::Ptr m_previousLoader; + BindingHash m_bindingHash; + }; +} + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(QIODevice *) +Q_DECLARE_METATYPE(QXmlQuery) + +QT_END_HEADER + +#endif |