File indexing completed on 2024-04-21 04:36:12

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_AST_GEN_H
0022 #define KDEV_PG_AST_GEN_H
0023 
0024 #include "kdev-pg-default-visitor.h"
0025 
0026 #include <QTextStream>
0027 #include <QSet>
0028 #include <QPair>
0029 #include <QList>
0030 #include <QString>
0031 
0032 namespace KDevPG
0033 {
0034 
0035 class GenerateAst
0036 {
0037 public:
0038   QTextStream& out;
0039 
0040 public:
0041   GenerateAst(QTextStream& o): out(o)
0042   {}
0043 
0044   void operator()();
0045 };
0046 
0047 class GenerateAstRule: protected DefaultVisitor
0048 {
0049 public:
0050   QTextStream& out;
0051   QSet<QString> mNames;
0052   QSet<QString> mGenerated;
0053   QSet<Model::SymbolItem*> mToGenerate;
0054   bool mInAlternative;
0055   bool mInCons;
0056   bool mForce;
0057   bool mFirstTime;
0058 
0059 public:
0060   GenerateAstRule(QTextStream& o): out(o), mForce(false), mFirstTime(true) {}
0061 
0062   void operator()(Model::SymbolItem *sym);
0063 
0064 protected:
0065   void visitAlternative(Model::AlternativeItem *node) override;
0066   void visitVariableDeclaration(Model::VariableDeclarationItem *node) override;
0067   void visitCons(Model::ConsItem *node) override;
0068   void visitEvolve(Model::EvolveItem *node) override;
0069   void visitInlinedNonTerminal(Model::InlinedNonTerminalItem *node) override;
0070 
0071   bool switchAlternative(bool alt);
0072   bool switchCons(bool c);
0073 };
0074 
0075 class GenerateAstFwd
0076 {
0077 public:
0078   QTextStream& out;
0079   
0080 public:
0081   GenerateAstFwd(QTextStream& o): out(o)
0082   {}
0083   
0084   void operator()();
0085 };
0086 }
0087 
0088 #endif // KDEV_PG_AST_GEN_H