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/*
* Copyright 2001-2006 Adrian Thurston <thurston@cs.queensu.ca>
* 2004 Erich Ocean <eric.ocean@ampede.com>
* 2005 Alan West <alan@alanz.com>
*/
/* This file is part of Ragel.
*
* Ragel is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Ragel 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Ragel; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _IPGCODEGEN_H
#define _IPGCODEGEN_H
#include <iostream>
#include "gotocodegen.h"
/* Forwards. */
struct CodeGenData;
/*
* class FGotoCodeGen
*/
class IpGotoCodeGen : public GotoCodeGen
{
public:
IpGotoCodeGen( ostream &out ) : FsmCodeGen(out), GotoCodeGen(out) {}
std::ostream &EXIT_STATES();
std::ostream &TRANS_GOTO( RedTransAp *trans, int level );
std::ostream &FINISH_CASES();
std::ostream &AGAIN_CASES();
void GOTO( ostream &ret, int gotoDest, bool inFinish );
void CALL( ostream &ret, int callDest, int targState, bool inFinish );
void NEXT( ostream &ret, int nextDest, bool inFinish );
void GOTO_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish );
void NEXT_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish );
void CALL_EXPR( ostream &ret, InlineItem *ilItem, int targState, bool inFinish );
void RET( ostream &ret, bool inFinish );
void CURS( ostream &ret, bool inFinish );
void TARGS( ostream &ret, bool inFinish, int targState );
void BREAK( ostream &ret, int targState );
virtual void writeData();
virtual void writeEOF();
virtual void writeExec();
protected:
bool useAgainLabel();
/* Called from GotoCodeGen::STATE_GOTOS just before writing the gotos for
* each state. */
bool IN_TRANS_ACTIONS( RedStateAp *state );
void GOTO_HEADER( RedStateAp *state );
void STATE_GOTO_ERROR();
/* Set up labelNeeded flag for each state. */
void setLabelsNeeded( InlineList *inlineList );
void setLabelsNeeded();
};
/*
* class CIpGotoCodeGen
*/
struct CIpGotoCodeGen
: public IpGotoCodeGen, public CCodeGen
{
CIpGotoCodeGen( ostream &out ) :
FsmCodeGen(out), IpGotoCodeGen(out), CCodeGen(out) {}
};
/*
* class DIpGotoCodeGen
*/
struct DIpGotoCodeGen
: public IpGotoCodeGen, public DCodeGen
{
DIpGotoCodeGen( ostream &out ) :
FsmCodeGen(out), IpGotoCodeGen(out), DCodeGen(out) {}
};
#endif /* _IPGCODEGEN_H */
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