2 * Copyright 2001-2006 Adrian Thurston <thurston@cs.queensu.ca>
3 * 2004 Erich Ocean <eric.ocean@ampede.com>
4 * 2005 Alan West <alan@alanz.com>
7 /* This file is part of Ragel.
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.
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.
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
24 #ifndef _GOTOCODEGEN_H
25 #define _GOTOCODEGEN_H
28 #include "fsmcodegen.h"
40 class GotoCodeGen : virtual public FsmCodeGen
43 GotoCodeGen( ostream &out ) : FsmCodeGen(out) {}
44 std::ostream &TO_STATE_ACTION_SWITCH();
45 std::ostream &FROM_STATE_ACTION_SWITCH();
46 std::ostream &EOF_ACTION_SWITCH();
47 std::ostream &ACTION_SWITCH();
48 std::ostream &STATE_GOTOS();
49 std::ostream &TRANSITIONS();
50 std::ostream &EXEC_FUNCS();
51 std::ostream &FINISH_CASES();
53 void GOTO( ostream &ret, int gotoDest, bool inFinish );
54 void CALL( ostream &ret, int callDest, int targState, bool inFinish );
55 void NEXT( ostream &ret, int nextDest, bool inFinish );
56 void GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
57 void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
58 void CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish );
59 void CURS( ostream &ret, bool inFinish );
60 void TARGS( ostream &ret, bool inFinish, int targState );
61 void RET( ostream &ret, bool inFinish );
62 void BREAK( ostream &ret, int targState, bool csForced );
64 virtual unsigned int TO_STATE_ACTION( RedStateAp *state );
65 virtual unsigned int FROM_STATE_ACTION( RedStateAp *state );
66 virtual unsigned int EOF_ACTION( RedStateAp *state );
68 std::ostream &TO_STATE_ACTIONS();
69 std::ostream &FROM_STATE_ACTIONS();
70 std::ostream &EOF_ACTIONS();
72 void COND_TRANSLATE( GenStateCond *stateCond, int level );
73 void emitCondBSearch( RedStateAp *state, int level, int low, int high );
74 void STATE_CONDS( RedStateAp *state, bool genDefault );
76 virtual std::ostream &TRANS_GOTO( RedTransAp *trans, int level );
78 void emitSingleSwitch( RedStateAp *state );
79 void emitRangeBSearch( RedStateAp *state, int level, int low, int high );
81 /* Called from STATE_GOTOS just before writing the gotos */
82 virtual void GOTO_HEADER( RedStateAp *state );
83 virtual void STATE_GOTO_ERROR();
85 virtual void writeData();
86 virtual void writeExec();
93 : public GotoCodeGen, public CCodeGen
95 CGotoCodeGen( ostream &out ) :
96 FsmCodeGen(out), GotoCodeGen(out), CCodeGen(out) {}
103 : public GotoCodeGen, public DCodeGen
105 DGotoCodeGen( ostream &out ) :
106 FsmCodeGen(out), GotoCodeGen(out), DCodeGen(out) {}
110 #endif /* _GOTOCODEGEN_H */