object.h

Go to the documentation of this file.

/*************************************************************************************
 *  Copyright (C) 2007 by Aleix Pol <aleixpol@kde.org>                               *
 *                                                                                   *
 *  This program is free software; you can redistribute it and/or                    *
 *  modify it under the terms of the GNU General Public License                      *
 *  as published by the Free Software Foundation; either version 2                   *
 *  of the License, or (at your option) any later version.                           *
 *                                                                                   *
 *  This program is distributed in the hope that it will be useful,                  *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of                   *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                    *
 *  GNU General Public License for more details.                                     *
 *                                                                                   *
 *  You should have received a copy of the GNU General Public License                *
 *  along with this program; if not, write to the Free Software                      *
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
 *************************************************************************************/

#ifndef OBJECT_H
#define OBJECT_H

#include <QDebug>

#include "analitzaexport.h"

namespace Analitza
{

class AbstractExpressionVisitor;

//FIXME: Check for public -> protected on some members
class ANALITZA_EXPORT Object
{
public:
    enum ObjectType {
        none=0,     
        value,      
        variable,   
        vector,     
        list,       
        apply,      
        oper,       
        container,  
        matrix,     
        matrixrow,  
        custom      
    };
    
    virtual ~Object() { /*qDebug() << "Destroying " << this;*/}
    
    enum ObjectType type() const { return m_type; }
    
    bool isApply() const { return m_type==apply; }
    
    bool isContainer() const { return m_type==container; }
    
    QString toString() const;
    
    virtual QVariant accept(AbstractExpressionVisitor* exp) const = 0;
    
    virtual bool isZero() const { return false; }
    
    virtual bool matches(const Object* exp, QMap<QString, const Object*>* found) const=0;
    
    virtual Object* copy() const =0;
    
protected:
    Object(enum ObjectType t) : m_type(t) {}
    
    const ObjectType m_type;
};

}
#endif