analitza/analitza/providederivative.h

0001 /*************************************************************************************
0002  *  Copyright (C) 2007 by Aleix Pol <aleixpol@kde.org>                               *
0003  *                                                                                   *
0004  *  This program is free software; you can redistribute it and/or                    *
0005  *  modify it under the terms of the GNU General Public License                      *
0006  *  as published by the Free Software Foundation; either version 2                   *
0007  *  of the License, or (at your option) any later version.                           *
0008  *                                                                                   *
0009  *  This program is distributed in the hope that it will be useful,                  *
0010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of                   *
0011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                    *
0012  *  GNU General Public License for more details.                                     *
0013  *                                                                                   *
0014  *  You should have received a copy of the GNU General Public License                *
0015  *  along with this program; if not, write to the Free Software                      *
0016  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA   *
0017  *************************************************************************************/
0018
0019 #ifndef PROVIDEDERIVATIVE_H
0020 #define PROVIDEDERIVATIVE_H
0021 #include "abstractexpressiontransformer.h"
0022 #include <QList>
0023 #include <QPair>
0024 #include <QStringList>
0025
0026 namespace Analitza
0027 {
0028
0029 class ProvideDerivative : public AbstractExpressionTransformer
0030 {
0031     public:
0032         explicit ProvideDerivative(const QString& var);
0033         Object* run(const Object* o);
0034
0035         bool isCorrect() const { return m_errors.isEmpty(); }
0036         QStringList errors() const { return m_errors; }
0037
0038     private:
0039         QStringList m_errors;
0040         virtual Object* walkApply(const Analitza::Apply* pattern) override;
0041
0042         Object* derivateContentVector(const Vector* v);
0043         Object* derivateContentList(const List* v);
0044         Object* derivativeContainer(const Container *c);
0045         Object* derivativeApply(const Apply *c);
0046
0047         Apply* makeDiff(Analitza::Object* o) const;
0048         void clearDiff(Apply* a);
0049         QString var;
0050 };
0051
0052 }
0053 #endif // PROVIDEDERIVATIVE_H