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/* This file is part of kdev-pg-qt
Copyright (C) 2010 Jonathan Schmidt-Dominé <devel@the-user.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef KDEV_PG_BNF_VISITOR_H
#define KDEV_PG_BNF_VISITOR_H
#include "kdev-pg-default-visitor.h"
#include "kdev-pg.h"
#include <QHash>
namespace KDevPG
{
class BnfVisitor : public DefaultVisitor
{
public:
static bool isInternal(Model::Node* item);
private:
static KDevPG::Allocator<char> localMemoryPool;
static QHash<Model::OperatorItem*, Model::Node*> mOpStuff;
static QHash<Model::StarItem*, Model::Node*> mStarStuff;
static QHash<Model::PlusItem*, Model::Node*> mPlusStuff;
template <class _Tp>
inline _Tp *localCreateNode();
template <class _Tp>
inline _Tp *createArray(qint64 size);
template <class _Tp>
inline _Tp * getSubArray(void *mem, qint64 s);
protected:
virtual void visitInlinedNonTerminal(Model::InlinedNonTerminalItem *node);
virtual void visitNonTerminal(Model::NonTerminalItem *node);
virtual void visitPlus(Model::PlusItem *node);
virtual void visitStar(Model::StarItem *node);
virtual void visitOperator(Model::OperatorItem *node);
virtual void visitTryCatch(Model::TryCatchItem *node);
virtual void visitAnnotation(Model::AnnotationItem *node);
virtual void visitCondition(Model::ConditionItem *node);
virtual void visitEvolve(Model::EvolveItem *node);
virtual void visitAction(Model::ActionItem *node);
/// Should be reimplemented by first- and follow-set-generators
virtual void copy(Model::Node *from, Model::Node *to)
{
Q_UNUSED(from);
Q_UNUSED(to);
}
virtual void preCopy(Model::Node *from, Model::Node *to)
{
Q_UNUSED(from);
Q_UNUSED(to);
}
virtual void finished();
virtual ~BnfVisitor()
{
finished();
}
};
}
#endif
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