/****************************************************************************
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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****************************************************************************/

#include "qcommonvalues_p.h"
#include "qgenericsequencetype_p.h"
#include "qschemanumeric_p.h"

#include "qnumericfns_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

Item FloorFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->floor());
}

Item AbsFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->abs());
}

Item RoundFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->round());
}

Item CeilingFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    return toItem(num.as<Numeric>()->ceiling());
}

Item RoundHalfToEvenFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    const Item num(m_operands.first()->evaluateSingleton(context));

    if(!num)
        return Item();

    xsInteger scale = 0;

    if(m_operands.count() == 2)
        scale = m_operands.at(1)->evaluateSingleton(context).as<Numeric>()->toInteger();

    return toItem(num.as<Numeric>()->roundHalfToEven(scale));
}

QT_END_NAMESPACE