Long live Qt 4.5!

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diff --git a/src/xmlpatterns/expr/qnodecomparison_p.h b/src/xmlpatterns/expr/qnodecomparison_p.h
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+/****************************************************************************
+**
+** 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_NodeComparison_H
+#define Patternist_NodeComparison_H
+
+#include "qpaircontainer_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+    /**
+     * @short Implements the node comparison operators <tt>\>\></tt>, <tt>\<\<</tt>, and @c is.
+     *
+     * @see <a href="http://www.w3.org/TR/xpath20/#id-node-comparisons">XML Path Language
+     * (XPath) 2.0, 3.5.3 QXmlNodeModelIndex Comparisons</a>
+     * @author Frans Englich <fenglich@trolltech.com>
+     * @ingroup Patternist_expressions
+     */
+    class Q_AUTOTEST_EXPORT NodeComparison : public PairContainer
+    {
+    public:
+        NodeComparison(const Expression::Ptr &operand1,
+                       const QXmlNodeModelIndex::DocumentOrder op,
+                       const Expression::Ptr &operand2);
+
+        virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
+        virtual bool evaluateEBV(const DynamicContext::Ptr &) const;
+
+        virtual SequenceType::List expectedOperandTypes() const;
+
+        virtual QXmlNodeModelIndex::DocumentOrder operatorID() const;
+        /**
+         * If any operator is the empty sequence, the NodeComparison rewrites
+         * into that, since the empty sequence is always the result in that case.
+         */
+        virtual Expression::Ptr compress(const StaticContext::Ptr &context);
+
+        /**
+         * @returns either CommonSequenceTypes::ZeroOrOneBoolean or
+         * CommonSequenceTypes::ExactlyOneBoolean depending on the static
+         * cardinality of its operands.
+         */
+        virtual SequenceType::Ptr staticType() const;
+
+        /**
+         * Determines the string representation for a node comparison operator.
+         *
+         * @returns
+         * - "<<" if @p op is Precedes
+         * - ">>" if @p op is Follows
+         * - "is" if @p op is Is
+         */
+        static QString displayName(const QXmlNodeModelIndex::DocumentOrder op);
+
+        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
+    private:
+        enum Result
+        {
+            Empty,
+            True,
+            False
+        };
+        inline Result evaluate(const DynamicContext::Ptr &context) const;
+
+        const QXmlNodeModelIndex::DocumentOrder m_op;
+
+    };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif