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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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#include "qitemmappingiterator_p.h"
#include "qsequencemappingiterator_p.h"
#include "qargumentconverter_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
ArgumentConverter::ArgumentConverter(const Expression::Ptr &operand,
const ItemType::Ptr &reqType) : UntypedAtomicConverter(operand, reqType)
{
}
ExpressionVisitorResult::Ptr ArgumentConverter::accept(const ExpressionVisitor::Ptr &visitor) const
{
return visitor->visit(this);
}
Item::Iterator::Ptr ArgumentConverter::mapToSequence(const Item &item,
const DynamicContext::Ptr &context) const
{
if(item.isAtomicValue() && !BuiltinTypes::xsUntypedAtomic->xdtTypeMatches(item.type()))
return makeSingletonIterator(item);
else
{
/* We're using UntypedAtomicConverter::mapToItem(). */
return makeItemMappingIterator<Item>(ConstPtr(this),
item.sequencedTypedValue(),
context);
}
}
Item::Iterator::Ptr ArgumentConverter::evaluateSequence(const DynamicContext::Ptr &context) const
{
return makeSequenceMappingIterator<Item>(ConstPtr(this),
m_operand->evaluateSequence(context),
context);
}
Item ArgumentConverter::evaluateSingleton(const DynamicContext::Ptr &context) const
{
const Item item(m_operand->evaluateSingleton(context));
if(item)
return mapToItem(item, context);
else /* Empty is allowed. ArgumentConverter doesn't care about cardinality. */
return Item();
}
SequenceType::List ArgumentConverter::expectedOperandTypes() const
{
SequenceType::List result;
result.append(CommonSequenceTypes::ZeroOrMoreItems);
return result;
}
SequenceType::Ptr ArgumentConverter::staticType() const
{
return CommonSequenceTypes::ZeroOrMoreAtomicTypes;
}
QT_END_NAMESPACE
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