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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qcommonsequencetypes_p.h"

#include "qtemplateparameterreference_p.h"

QT_BEGIN_NAMESPACE

using namespace QPatternist;

TemplateParameterReference::TemplateParameterReference(const VariableDeclaration *varDecl) : m_varDecl(varDecl)
{
}

bool TemplateParameterReference::evaluateEBV(const DynamicContext::Ptr &context) const
{
    return context->templateParameterStore()[m_varDecl->name]->evaluateEBV(context);
}

Item TemplateParameterReference::evaluateSingleton(const DynamicContext::Ptr &context) const
{
    return context->templateParameterStore()[m_varDecl->name]->evaluateSingleton(context);
}

Item::Iterator::Ptr TemplateParameterReference::evaluateSequence(const DynamicContext::Ptr &context) const
{
    Q_ASSERT(!m_varDecl->name.isNull());
    Q_ASSERT(context->templateParameterStore()[m_varDecl->name]);
    return context->templateParameterStore()[m_varDecl->name]->evaluateSequence(context);
}

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

Expression::Properties TemplateParameterReference::properties() const
{
    return DisableElimination;
}

SequenceType::Ptr TemplateParameterReference::staticType() const
{
    /* We can't use m_varDecl->expression()'s static type here, because
     * it's the default argument. */
    if(!m_varDecl->sequenceType)
        return CommonSequenceTypes::ZeroOrMoreItems;
    else
        return m_varDecl->sequenceType;
}

QT_END_NAMESPACE