/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
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****************************************************************************/

#ifndef CPLUSPLUS_ASTPATH_H
#define CPLUSPLUS_ASTPATH_H

#include <ASTfwd.h>
#include <ASTVisitor.h>

#include "CppDocument.h"

#include <QList>
#include <QTextCursor>

#undef DEBUG_AST_PATH

namespace CPlusPlus {

class CPLUSPLUS_EXPORT ASTPath: public ASTVisitor
{
public:
    ASTPath(Document::Ptr doc)
        : ASTVisitor(doc->translationUnit()),
          _doc(doc), _line(0), _column(0)
    {}

    QList<AST *> operator()(const QTextCursor &cursor)
    { return this->operator()(cursor.blockNumber() + 1, cursor.positionInBlock() + 1); }

    /// line and column are 1-based!
    QList<AST *> operator()(int line, int column);

#ifdef DEBUG_AST_PATH
    static void dump(const QList<AST *> nodes);
#endif

protected:
    virtual bool preVisit(AST *ast);

private:
    Document::Ptr _doc;
    unsigned _line;
    unsigned _column;
    QList<AST *> _nodes;
};

} // namespace CppTools

#endif // CPLUSPLUS_ASTPATH_H
