| /**************************************************************************** |
| ** |
| ** 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: |
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| ** |
| ** 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. |
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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_Atomizer_H |
| #define Patternist_Atomizer_H |
| |
| #include "qitem_p.h" |
| #include "qsinglecontainer_p.h" |
| |
| QT_BEGIN_HEADER |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QPatternist |
| { |
| |
| /** |
| * @short Performs atomization. Effectively, it is an implementation |
| * of the <tt>fn:data()</tt> function. |
| * |
| * @see <a href="http://www.w3.org/TR/xpath-functions/#func-data">XQuery 1.0 and XPath |
| * 2.0 Functions and Operators, 2.4 fn:data</a> |
| * @see <a href="http://www.w3.org/TR/xpath20/#id-atomization">XML |
| * Path Language (XPath) 2.0, 2.4.2 Atomization</a> |
| * @author Frans Englich <frans.englich@nokia.com> |
| * @ingroup Patternist_expressions |
| */ |
| class Atomizer : public SingleContainer |
| { |
| public: |
| Atomizer(const Expression::Ptr &operand); |
| |
| virtual Item evaluateSingleton(const DynamicContext::Ptr &) const; |
| virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const; |
| |
| virtual SequenceType::Ptr staticType() const; |
| |
| virtual SequenceType::List expectedOperandTypes() const; |
| virtual const SourceLocationReflection *actualReflection() const; |
| |
| /** |
| * Makes an early compression, by returning the result of |
| * the type checked operand, if the operand has the static type |
| * xs:anyAtomicType(no atomization needed). |
| */ |
| virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context, |
| const SequenceType::Ptr &reqType); |
| |
| inline Item::Iterator::Ptr mapToSequence(const Item &item, |
| const DynamicContext::Ptr &context) const; |
| virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const; |
| |
| private: |
| typedef QExplicitlySharedDataPointer<const Atomizer> ConstPtr; |
| }; |
| } |
| |
| QT_END_NAMESPACE |
| |
| QT_END_HEADER |
| |
| #endif |