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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
**
****************************************************************************/
#include "qdeduplicateiterator_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
DeduplicateIterator::DeduplicateIterator(const Item::List &source) : ListIterator<Item>(source)
, m_listPos(0)
{
Q_ASSERT(!Item());
Q_ASSERT(!Item().isNode());
Q_ASSERT(!Item().isAtomicValue());
}
Item DeduplicateIterator::next()
{
if(m_listPos == m_list.count())
{
m_current.reset();
m_position = -1;
return Item();
}
Item next(m_list.at(m_listPos));
while(next.asNode().is(m_current.asNode()))
{
++m_listPos;
if(m_listPos == m_list.count())
{
m_current.reset();
m_position = -1;
return Item();
}
else
next = m_list.at(m_listPos);
}
++m_position;
m_current = next;
return next;
}
xsInteger DeduplicateIterator::count()
{
return QAbstractXmlForwardIterator<Item>::count();
}
Item::Iterator::Ptr DeduplicateIterator::copy() const
{
return Item::Iterator::Ptr(new DeduplicateIterator(m_list));
}
QT_END_NAMESPACE
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