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Diffstat (limited to 'src/xmlpatterns/janitors/qargumentconverter.cpp')
| -rw-r--r-- | src/xmlpatterns/janitors/qargumentconverter.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/xmlpatterns/janitors/qargumentconverter.cpp b/src/xmlpatterns/janitors/qargumentconverter.cpp new file mode 100644 index 0000000000..f067089e28 --- /dev/null +++ b/src/xmlpatterns/janitors/qargumentconverter.cpp @@ -0,0 +1,104 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 |