Introduced ASTparent

src/libs/cplusplus/ASTParent.h

@@ -0,0 +1,63 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+**
+**************************************************************************/
+
+#ifndef ASTPARENT_H
+#define ASTPARENT_H
+
+#include <ASTVisitor.h>
+#include <QtCore/QHash>
+#include <QtCore/QStack>
+
+namespace CPlusPlus {
+
+class CPLUSPLUS_EXPORT ASTParent: protected ASTVisitor
+{
+public:
+    ASTParent(Control *control, AST *rootNode);
+    virtual ~ASTParent();
+
+    AST *operator()(AST *ast) const;
+
+    AST *parent(AST *ast) const;
+    QList<AST *> path(AST *ast) const;
+
+protected:
+    virtual bool preVisit(AST *ast);
+    virtual void postVisit(AST *ast);
+
+    void path_helper(AST *ast, QList<AST *> *path) const;
+
+private:
+    QHash<AST *, AST *> _parentMap;
+    QStack<AST *> _parentStack;
+};
+
+} // namespace CPlusPlus
+
+#endif // ASTPARENT_H