--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/api/qvariableloader_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,118 @@
+/****************************************************************************
+**
+** 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_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