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****************************************************************************/

#include "qinteger_p.h"

#include "qindexofiterator_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

IndexOfIterator::IndexOfIterator(const Item::Iterator::Ptr &seq,

                                 const Item &searchParam,

                                 const AtomicComparator::Ptr &comp,

                                 const DynamicContext::Ptr &context,

                                 const Expression::ConstPtr &expr)

                                : m_seq(seq)

                                , m_searchParam(searchParam)

                                , m_context(context)

                                , m_expr(expr)

                                , m_position(0)

                                , m_seqPos(0)

{

    Q_ASSERT(seq);

    Q_ASSERT(searchParam);

    prepareComparison(comp);

}

Item IndexOfIterator::next()

{

    if(m_position == -1)

        return Item();

    const Item item(m_seq->next());

    ++m_seqPos;

    if(!item)

    {

        m_current.reset();

        m_position = -1;

        return Item();

    }

    if(flexibleCompare(item, m_searchParam, m_context))

    {

        ++m_position;

        return Integer::fromValue(m_seqPos);

    }

    return next();

}

Item IndexOfIterator::current() const

{

    return m_current;

}

xsInteger IndexOfIterator::position() const

{

    return m_position;

}

Item::Iterator::Ptr IndexOfIterator::copy() const

{

    return Item::Iterator::Ptr(new IndexOfIterator(m_seq->copy(),

                                                   m_searchParam,

                                                   comparator(),

                                                   m_context,

                                                   m_expr));

}

const SourceLocationReflection *IndexOfIterator::actualReflection() const

{

    return m_expr.data();

}

QT_END_NAMESPACE