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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_TypeAvailableFN_H
#define Patternist_TypeAvailableFN_H

#include <private/qschematypefactory_p.h>
#include <private/qstaticnamespacescontainer_p.h>

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Implements XSL-T 2.0's XPath function <tt>fn:type-available()</tt>.
     *
     * @see <a href="http://www.w3.org/TR/xslt20/#function-function-available">XSL Transformations
     * (XSLT) Version 2.0, 18.1.1 Testing Availability of Functions</a>
     * @author Frans Englich <frans.englich@nokia.com>
     * @ingroup Patternist_functions
     */
    class TypeAvailableFN : public StaticNamespacesContainer
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;

        /**
         * Reimplemented to store data from the @p context which is needed at runtime.
         */
        virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
                                          const SequenceType::Ptr &reqType);

    private:
        SchemaTypeFactory::Ptr m_schemaTypeFactory;
    };

}

QT_END_NAMESPACE
#endif