File indexing completed on 2024-04-14 04:31:34

 /* This file is part of kdev-pg-qt
    Copyright (C) 2005 Roberto Raggi <roberto@kdevelop.org>
    Copyright (C) 2006 Jakob Petsovits <jpetso@gmx.at>
    Copyright (C) 2006 Alexander Dymo <adymo@kdevelop.org>
    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_FOLLOW_H
 #define KDEV_PG_FOLLOW_H
 
 #include "kdev-pg.h"
 #include "kdev-pg-bnf-visitor.h"
 
 
 
 namespace KDevPG
 {
 
 class InitializeFollow: protected DefaultVisitor
 {
 public:
   void operator()(Model::Node *node);
 protected:
   void visitSymbol(Model::SymbolItem *node) override;
 };
 
 class NextFollow: protected BnfVisitor
 {
 public:
   NextFollow(bool &changed);
 
   void operator()(Model::Node *node);
 
 protected:
   void merge(Model::Node *__dest, World::NodeSet const &source);
   /**adds dependency between rule @p dep whose FIRST set is added to
   @p dest FOLLOW set*/
   void addFirstToFollowDep(Model::Node *dest, Model::Node *dep);
   /**adds dependency between rule @p dep whose FOLLOW set is added to
   @p dest FOLLOW set*/
   void addFollowToFollowDep(Model::Node *dest, Model::Node *dep);
 
   void visitNode(Model::Node *node) override;
   void visitAlternative(Model::AlternativeItem *node) override;
   void visitCons(Model::ConsItem *node) override;
   
   void preCopy(Model::Node *from, Model::Node *to) override;
   void copy(Model::Node *from, Model::Node *to) override;
 
 private:
   bool &mChanged;
   Model::SymbolItem *mSymbol;
   QSet<Model::Node*> mVisited;
 };
 
 void computeFollow();
 
 }
 
 #endif // KDEV_PG_FOLLOW_H