/****************************************************************************
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//
//  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_OrExpression_H
#define Patternist_OrExpression_H

#include "qandexpression_p.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Implements XPath 2.0's logical expression @c or.
     *
     * @see <a href="http://www.w3.org/TR/xpath20/#id-logical-expressions">XML Path Language
     * (XPath) 2.0, 3.6 Logical Expressions</a>
     * @author Frans Englich <fenglich@trolltech.com>
     * @ingroup Patternist_expressions
     */
    class OrExpression : public AndExpression
    {
    public:
        OrExpression(const Expression::Ptr &operand1,
                     const Expression::Ptr &operand2);

        virtual bool evaluateEBV(const DynamicContext::Ptr &context) const;

        virtual Expression::Ptr compress(const StaticContext::Ptr &context);
        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
    };
}

QT_END_NAMESPACE

QT_END_HEADER

#endif