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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
*/
#include "ragel.h"
#include "gotablish.h"
using std::endl;
void GoTablishCodeGen::GOTO( ostream &ret, int gotoDest, bool inFinish )
{
ret << vCS() << " = " << gotoDest << endl <<
"goto _again" << endl;
}
void GoTablishCodeGen::GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish )
{
ret << vCS() << " = (";
INLINE_LIST( ret, ilItem->children, 0, inFinish, false );
ret << ")" << endl << "goto _again" << endl;
}
void GoTablishCodeGen::CURS( ostream &ret, bool inFinish )
{
ret << "(_ps)";
}
void GoTablishCodeGen::TARGS( ostream &ret, bool inFinish, int targState )
{
ret << "(" << vCS() << ")";
}
void GoTablishCodeGen::NEXT( ostream &ret, int nextDest, bool inFinish )
{
ret << vCS() << " = " << nextDest << endl;
}
void GoTablishCodeGen::NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish )
{
ret << vCS() << " = (";
INLINE_LIST( ret, ilItem->children, 0, inFinish, false );
ret << ")" << endl;
}
void GoTablishCodeGen::CALL( ostream &ret, int callDest, int targState, bool inFinish )
{
if ( prePushExpr != 0 ) {
ret << "{ ";
INLINE_LIST( ret, prePushExpr, 0, false, false );
}
ret << STACK() << "[" << TOP() << "] = " << vCS() << "; " << TOP() << "++; " <<
vCS() << " = " << callDest << "; " << "goto _again" << endl;
if ( prePushExpr != 0 )
ret << " }";
}
void GoTablishCodeGen::CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish )
{
if ( prePushExpr != 0 ) {
ret << "{";
INLINE_LIST( ret, prePushExpr, 0, false, false );
}
ret << STACK() << "[" << TOP() << "] = " << vCS() << "; " << TOP() << "++; " << vCS() << " = (";
INLINE_LIST( ret, ilItem->children, targState, inFinish, false );
ret << "); " << "goto _again" << endl;
if ( prePushExpr != 0 )
ret << "}";
}
void GoTablishCodeGen::RET( ostream &ret, bool inFinish )
{
ret << TOP() << "--; " << vCS() << " = " << STACK() << "[" <<
TOP() << "]" << endl;
if ( postPopExpr != 0 ) {
ret << "{ ";
INLINE_LIST( ret, postPopExpr, 0, false, false );
ret << " }" << endl;
}
ret << "goto _again" << endl;
}
void GoTablishCodeGen::BREAK( ostream &ret, int targState, bool csForced )
{
outLabelUsed = true;
ret << P() << "++; " << "goto _out" << endl;
}
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