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/*
* Copyright 2001-2006 Adrian Thurston <thurston@complang.org>
* 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 _GOIPGOTO_H
#define _GOIPGOTO_H
#include <iostream>
#include "gogoto.h"
/* Forwards. */
struct CodeGenData;
class GoIpGotoCodeGen
: public GoGotoCodeGen
{
public:
GoIpGotoCodeGen( ostream &out )
: GoGotoCodeGen(out) {}
std::ostream &EXIT_STATES();
std::ostream &TRANS_GOTO( RedTransAp *trans, int level );
int TRANS_NR( RedTransAp *trans );
std::ostream &FINISH_CASES( int level );
std::ostream &AGAIN_CASES( int level );
std::ostream &STATE_GOTOS_SWITCH( int level );
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, GenInlineItem *ilItem, bool inFinish );
void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
void CALL_EXPR( ostream &ret, GenInlineItem *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, bool csForced );
virtual void writeData();
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, int level );
void STATE_GOTO_ERROR( int level );
/* Set up labelNeeded flag for each state. */
void setLabelsNeeded( GenInlineList *inlineList );
void setLabelsNeeded();
};
#endif
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