kdevelop-pg-qt/kdev-pg/kdev-pg-visitor.h

0001 /* This file is part of kdev-pg-qt
0002    Copyright (C) 2005 Roberto Raggi <roberto@kdevelop.org>
0003    Copyright (C) 2006 Jakob Petsovits <jpetso@gmx.at>
0004
0005    This library is free software; you can redistribute it and/or
0006    modify it under the terms of the GNU Library General Public
0007    License as published by the Free Software Foundation; either
0008    version 2 of the License, or (at your option) any later version.
0009
0010    This library is distributed in the hope that it will be useful,
0011    but WITHOUT ANY WARRANTY; without even the implied warranty of
0012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0013    Library General Public License for more details.
0014
0015    You should have received a copy of the GNU Library General Public License
0016    along with this library; see the file COPYING.LIB.  If not, write to
0017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0018    Boston, MA 02110-1301, USA.
0019 */
0020
0021 #ifndef KDEV_PG_VISITOR_H
0022 #define KDEV_PG_VISITOR_H
0023
0024 #include "kdev-pg-ast.h"
0025
0026 namespace KDevPG
0027 {
0028
0029 class Visitor
0030 {
0031 public:
0032   virtual ~Visitor()
0033   {}
0034
0035   virtual void visitNode(Model::Node *node)
0036   {
0037     if (node)
0038       (this->*sTable[node->kind])(node);
0039   }
0040
0041 protected:
0042   virtual void visitZero(Model::ZeroItem *) {}
0043   virtual void visitPlus(Model::PlusItem *) {}
0044   virtual void visitStar(Model::StarItem *) {}
0045   virtual void visitSymbol(Model::SymbolItem *) {}
0046   virtual void visitAction(Model::ActionItem *) {}
0047   virtual void visitAlternative(Model::AlternativeItem *) {}
0048   virtual void visitCons(Model::ConsItem *) {}
0049   virtual void visitEvolve(Model::EvolveItem *) {}
0050   virtual void visitTryCatch(Model::TryCatchItem *) {}
0051   virtual void visitAlias(Model::AliasItem *) {}
0052   virtual void visitTerminal(Model::TerminalItem *) {}
0053   virtual void visitNonTerminal(Model::NonTerminalItem *) {}
0054   virtual void visitInlinedNonTerminal(Model::InlinedNonTerminalItem *) {}
0055   virtual void visitAnnotation(Model::AnnotationItem *) {}
0056   virtual void visitCondition(Model::ConditionItem *) {}
0057   virtual void visitVariableDeclaration(Model::VariableDeclarationItem *) {}
0058   virtual void visitOperator(Model::OperatorItem *) {}
0059
0060 private:
0061   typedef void (Visitor::*VisitorFuncPointer)(Model::Node *item);
0062   static Visitor::VisitorFuncPointer sTable[];
0063 };
0064
0065 }
0066
0067 #endif // KDEV_PG_VISITOR_H
0068