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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights.  These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/


#include "qargumentreference_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

ArgumentReference::ArgumentReference(const SequenceType::Ptr &sourceType,
                                     const VariableSlotID slotP) : VariableReference(slotP),
                                                                   m_type(sourceType)
{
    Q_ASSERT(m_type);
}

bool ArgumentReference::evaluateEBV(const DynamicContext::Ptr &context) const
{
    return context->expressionVariable(slot())->evaluateEBV(context);
}

Item ArgumentReference::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return context->expressionVariable(slot())->evaluateSingleton(context);
}

Item::Iterator::Ptr ArgumentReference::evaluateSequence(const DynamicContext::Ptr &context) const
{
    return context->expressionVariable(slot())->evaluateSequence(context);
}

SequenceType::Ptr ArgumentReference::staticType() const
{
    return m_type;
}

ExpressionVisitorResult::Ptr ArgumentReference::accept(const ExpressionVisitor::Ptr &visitor) const
{
    return visitor->visit(this);
}

Expression::ID ArgumentReference::id() const
{
    return IDArgumentReference;
}

QT_END_NAMESPACE