/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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** 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:
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
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****************************************************************************/

#include "qanyuri_p.h"
#include "qdate_p.h"
#include "qschemadatetime_p.h"
#include "qdaytimeduration_p.h"
#include "qinteger_p.h"
#include "qliteral_p.h"
#include "qatomicstring_p.h"
#include "qschematime_p.h"

#include "qcontextfns_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

Item PositionFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(context);
    return Integer::fromValue(context->contextPosition());
}

Item LastFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(context);
    return Integer::fromValue(context->contextSize());
}

Item ImplicitTimezoneFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return toItem(context->implicitTimezone());
}

Item CurrentDateTimeFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return toItem(DateTime::fromDateTime(context->currentDateTime()));
}

Item CurrentDateFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return toItem(Date::fromDateTime(context->currentDateTime()));
}

Item CurrentTimeFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return toItem(SchemaTime::fromDateTime(context->currentDateTime()));
}

Expression::Ptr StaticBaseURIFN::typeCheck(const StaticContext::Ptr &context,
                                           const SequenceType::Ptr &reqType)
{
    /* Our base URI can never be undefined. */
    return wrapLiteral(toItem(AnyURI::fromValue(context->baseURI())), context, this)->typeCheck(context, reqType);
}

Expression::Ptr DefaultCollationFN::typeCheck(const StaticContext::Ptr &context,
                                              const SequenceType::Ptr &reqType)
{
    return wrapLiteral(AtomicString::fromValue(context->defaultCollation().toString()), context, this)->typeCheck(context, reqType);
}

QT_END_NAMESPACE