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Member "ragel-6.10/ragel/cdipgoto.h" (24 Mar 2017, 3016 Bytes) of package /linux/misc/ragel-6.10.tar.gz:


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    1 /*
    2  *  Copyright 2001-2006 Adrian Thurston <thurston@complang.org>
    3  *            2004 Erich Ocean <eric.ocean@ampede.com>
    4  *            2005 Alan West <alan@alanz.com>
    5  */
    6 
    7 /*  This file is part of Ragel.
    8  *
    9  *  Ragel is free software; you can redistribute it and/or modify
   10  *  it under the terms of the GNU General Public License as published by
   11  *  the Free Software Foundation; either version 2 of the License, or
   12  *  (at your option) any later version.
   13  * 
   14  *  Ragel is distributed in the hope that it will be useful,
   15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   17  *  GNU General Public License for more details.
   18  * 
   19  *  You should have received a copy of the GNU General Public License
   20  *  along with Ragel; if not, write to the Free Software
   21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
   22  */
   23 
   24 #ifndef _CDIPGOTO_H
   25 #define _CDIPGOTO_H
   26 
   27 #include <iostream>
   28 #include "cdgoto.h"
   29 
   30 /* Forwards. */
   31 struct CodeGenData;
   32 
   33 /*
   34  * class FGotoCodeGen
   35  */
   36 class IpGotoCodeGen : public GotoCodeGen
   37 {
   38 public:
   39     IpGotoCodeGen( ostream &out ) : FsmCodeGen(out), GotoCodeGen(out) {}
   40 
   41     std::ostream &EXIT_STATES();
   42     std::ostream &TRANS_GOTO( RedTransAp *trans, int level );
   43     std::ostream &FINISH_CASES();
   44     std::ostream &AGAIN_CASES();
   45 
   46     void GOTO( ostream &ret, int gotoDest, bool inFinish );
   47     void CALL( ostream &ret, int callDest, int targState, bool inFinish );
   48     void NEXT( ostream &ret, int nextDest, bool inFinish );
   49     void GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
   50     void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
   51     void CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish );
   52     void RET( ostream &ret, bool inFinish );
   53     void CURS( ostream &ret, bool inFinish );
   54     void TARGS( ostream &ret, bool inFinish, int targState );
   55     void BREAK( ostream &ret, int targState, bool csForced );
   56 
   57     virtual void writeData();
   58     virtual void writeExec();
   59 
   60 protected:
   61     bool useAgainLabel();
   62 
   63     void EOF_CHECK( ostream &ret, int gotoDest );
   64 
   65     /* Called from GotoCodeGen::STATE_GOTOS just before writing the gotos for
   66      * each state. */
   67     bool IN_TRANS_ACTIONS( RedStateAp *state );
   68     void GOTO_HEADER( RedStateAp *state );
   69     void STATE_GOTO_ERROR();
   70 
   71     /* Set up labelNeeded flag for each state. */
   72     void setLabelsNeeded( GenInlineList *inlineList );
   73     void setLabelsNeeded();
   74 };
   75 
   76 
   77 /*
   78  * class CIpGotoCodeGen
   79  */
   80 struct CIpGotoCodeGen
   81     : public IpGotoCodeGen, public CCodeGen
   82 {
   83     CIpGotoCodeGen( ostream &out ) : 
   84         FsmCodeGen(out), IpGotoCodeGen(out), CCodeGen(out) {}
   85 };
   86 
   87 /*
   88  * class DIpGotoCodeGen
   89  */
   90 struct DIpGotoCodeGen
   91     : public IpGotoCodeGen, public DCodeGen
   92 {
   93     DIpGotoCodeGen( ostream &out ) : 
   94         FsmCodeGen(out), IpGotoCodeGen(out), DCodeGen(out) {}
   95 };
   96 
   97 /*
   98  * class D2IpGotoCodeGen
   99  */
  100 struct D2IpGotoCodeGen
  101     : public IpGotoCodeGen, public D2CodeGen
  102 {
  103     D2IpGotoCodeGen( ostream &out ) : 
  104         FsmCodeGen(out), IpGotoCodeGen(out), D2CodeGen(out) {}
  105 };
  106 
  107 #endif