src/xmlpatterns/expr/qvariablereference_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/expr/qvariablereference_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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_VariableReference_H
+#define Patternist_VariableReference_H
+
+#include "qemptycontainer_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+template<typename T> class QList;
+
+namespace QPatternist
+{
+    /**
+     * @short Baseclass for classes being references to variables.
+     *
+     * @author Frans Englich <frans.englich@nokia.com>
+     * @ingroup Patternist_expressions
+     */
+    class VariableReference : public EmptyContainer
+    {
+    public:
+        typedef QExplicitlySharedDataPointer<VariableReference> Ptr;
+        typedef QList<VariableReference::Ptr> List;
+
+        /**
+         * Creates a VariableReference.
+         *
+         * @param slot must be a valid slot. That is, zero or larger.
+         */
+        VariableReference(const VariableSlotID slot);
+
+        /**
+         * @returns the slot that this reference communicates through.
+         *
+         * This is a slot in the DynamicContext. Which one, depends on the
+         * type, which this VariableReference does not have information about.
+         * For instance, it could DynamicContext::expressionVariable() or
+         * DynamicContext::rangeVariable().
+         */
+        inline VariableSlotID slot() const;
+
+        /**
+         * @returns DisableElimination
+         */
+        virtual Properties properties() const;
+
+    private:
+        /**
+         * The slot. Same as returned by slot().
+         *
+         *  This variable is not called m_slot, because that creates a weird
+         *  compiler error on hpuxi-acc. See the preprocessor output. EvaluationCache::m_varSlot
+         *  is a similar workaround.
+         */
+        const VariableSlotID m_varSlot;
+    };
+
+    inline VariableSlotID VariableReference::slot() const
+    {
+        return m_varSlot;
+    }
+
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif