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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 168 insertions, 0 deletions

diff --git a/src/xmlpatterns/expr/qaxisstep_p.h b/src/xmlpatterns/expr/qaxisstep_p.h
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--- /dev/null
+++ b/src/xmlpatterns/expr/qaxisstep_p.h
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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_AxisStep_H
+#define Patternist_AxisStep_H
+
+#include "qemptycontainer_p.h"
+#include "qitem_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+    /**
+     * @short A step in a path expression that with an axis and a node test evaluates
+     * to a sequence of nodes from the context item.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_expressions
+     */
+    class Q_AUTOTEST_EXPORT AxisStep : public EmptyContainer
+    {
+    public:
+        AxisStep(const QXmlNodeModelIndex::Axis axis,
+                 const ItemType::Ptr &nodeTest);
+
+        virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &) const;
+        virtual Item evaluateSingleton(const DynamicContext::Ptr &) const;
+
+        /**
+         * Returns @p node if it matches the node test this step is using, otherwise @c null.
+         */
+        inline Item mapToItem(const QXmlNodeModelIndex &node,
+                              const DynamicContext::Ptr &context) const;
+
+        virtual SequenceType::List expectedOperandTypes() const;
+        virtual SequenceType::Ptr staticType() const;
+
+        /**
+         * Rewrites to ParentNodeAxis, if possible.
+         */
+        virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
+                                          const SequenceType::Ptr &reqType);
+
+        /**
+         * @returns always BuiltinTypes::node;
+         */
+        virtual ItemType::Ptr expectedContextItemType() const;
+
+        virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
+
+        virtual Properties properties() const;
+
+        /**
+         * @returns the axis this step is using.
+         */
+        QXmlNodeModelIndex::Axis axis() const;
+
+        /**
+         * @returns the node test this step is using.
+         */
+        inline ItemType::Ptr nodeTest() const
+        {
+            return m_nodeTest;
+        }
+
+        void setNodeTest(const ItemType::Ptr &nev)
+        {
+            m_nodeTest = nev;
+        }
+
+        /**
+         * @short Prints the EBNF name corresponding to @p axis.
+         *
+         * For instance, for QXmlNodeModelIndex::Child, "child" is returned.
+         *
+         * Apart from being used in this class, it is used in the SDK.
+         */
+        static QString axisName(const QXmlNodeModelIndex::Axis axis);
+
+        virtual ID id() const;
+        virtual PatternPriority patternPriority() const;
+
+        inline void setAxis(const QXmlNodeModelIndex::Axis newAxis);
+
+    private:
+        typedef QExplicitlySharedDataPointer<const AxisStep> ConstPtr;
+
+        static const QXmlNodeModelIndex::NodeKind s_whenAxisNodeKindEmpty[];
+
+        /**
+         * @returns @c true when the axis @p axis and a node test testing node of
+         * type @p nodeKind always produces an empty sequence. One such example
+         * is <tt>attribute::comment()</tt>.
+         */
+        static bool isAlwaysEmpty(const QXmlNodeModelIndex::Axis axis,
+                                  const QXmlNodeModelIndex::NodeKind nodeKind);
+
+        /**
+         * The reason this variable is mutable, is that in the case of XSL-T patterns,
+         * we do quite some reordering.
+         */
+        QXmlNodeModelIndex::Axis    m_axis;
+        ItemType::Ptr               m_nodeTest;
+    };
+
+    void AxisStep::setAxis(const QXmlNodeModelIndex::Axis newAxis)
+    {
+        m_axis = newAxis;
+    }
+
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif