| /**************************************************************************** |
| ** |
| ** 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: |
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| ** 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. |
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| ** $QT_END_LICENSE$ |
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| ****************************************************************************/ |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| |
| #ifndef Patternist_ArgumentConverter_H |
| #define Patternist_ArgumentConverter_H |
| |
| #include "quntypedatomicconverter_p.h" |
| |
| QT_BEGIN_HEADER |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QPatternist |
| { |
| |
| /** |
| * @short UntypedAtomicConverter for ArgumentReference, if needed. |
| * |
| * If an argument inside a user function has no type declared, its type |
| * is @c item(). It's atomized type would be inferred to @c |
| * xs:anyAtomicType, but that is not necessarily correct, since the actual |
| * value can be anything, nodes or atomic values. |
| * |
| * This extremely dynamic case is handled by ArgumentConverter which is inserted for |
| * ArgumentReference that has the static type @c item(), when atomic value are asked |
| * for. At runtime it atomizes/let values through appropriately. |
| * |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @ingroup Patternist_expressions |
| */ |
| class ArgumentConverter : public UntypedAtomicConverter |
| { |
| public: |
| ArgumentConverter(const Expression::Ptr &operand, |
| const ItemType::Ptr &reqType); |
| |
| virtual Item evaluateSingleton(const DynamicContext::Ptr &) const; |
| virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const; |
| virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const; |
| inline Item::Iterator::Ptr mapToSequence(const Item &item, |
| const DynamicContext::Ptr &context) const; |
| virtual SequenceType::List expectedOperandTypes() const; |
| virtual SequenceType::Ptr staticType() const; |
| |
| private: |
| typedef QExplicitlySharedDataPointer<const ArgumentConverter> ConstPtr; |
| |
| }; |
| } |
| |
| QT_END_NAMESPACE |
| |
| QT_END_HEADER |
| |
| #endif |