--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/expr/qarithmeticexpression_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** 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_ArithmeticExpression_H
+#define Patternist_ArithmeticExpression_H
+
+#include "qatomicmathematician_p.h"
+#include "qpaircontainer_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short Implements arithmetics, such as multiplication and substraction.
+     *
+     *
+     * Optimizations: there's some operator/value combos that are no ops. For
+     * instance, 0 + <value>, which is the case of unary plus. We can't compile
+     * those away early due to that type checks needs to be done but one can
+     * check for them in compress().
+     *
+     * @see <a href="http://www.w3.org/TR/xpath20/#id-arithmetic">XML Path Language
+     * (XPath) 2.0, 3.4 Arithmetic Expressions</a>
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_expressions
+     */
+    class Q_AUTOTEST_EXPORT ArithmeticExpression : public PairContainer
+    {
+    public:
+        ArithmeticExpression(const Expression::Ptr &operand1,
+                             const AtomicMathematician::Operator op,
+                             const Expression::Ptr &operand2);
+
+        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
+
+        virtual SequenceType::Ptr staticType() const;
+        virtual SequenceType::List expectedOperandTypes() const;
+        AtomicMathematician::Operator operatorID() const;
+
+        virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
+                                          const SequenceType::Ptr &reqType);
+
+        static Item flexiblyCalculate(const Item &op1,
+                                      const AtomicMathematician::Operator op,
+                                      const Item &op2,
+                                      const AtomicMathematician::Ptr &mather,
+                                      const DynamicContext::Ptr &context,
+                                      const SourceLocationReflection *const reflection,
+                                      const ReportContext::ErrorCode code = ReportContext::XPTY0004,
+                                      const bool isCompat = false);
+
+        static AtomicMathematician::Ptr
+        fetchMathematician(Expression::Ptr &t1,
+                           Expression::Ptr &t2,
+                           const AtomicMathematician::Operator op,
+                           const bool issueError,
+                           const ReportContext::Ptr &context,
+                           const SourceLocationReflection *const reflection,
+                           const ReportContext::ErrorCode code = ReportContext::XPTY0004,
+                           const bool isCompat = false);
+        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
+
+    protected:
+
+    private:
+        const AtomicMathematician::Operator m_op;
+        AtomicMathematician::Ptr            m_mather;
+        bool                                m_isCompat;
+    };
+
+    inline AtomicMathematician::Operator ArithmeticExpression::operatorID() const
+    {
+        return m_op;
+    }
+
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif