rlgen-java/javacodegen.h

   1 /*
   2  *  Copyright 2006-2007 Adrian Thurston <thurston@cs.queensu.ca>
   3  *            2007 Colin Fleming <colin.fleming@caverock.com>
   4  */
   5
   6 /*  This file is part of Ragel.
   7  *
   8  *  Ragel is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  Ragel is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with Ragel; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #ifndef _JAVACODEGEN_H
  24 #define _JAVACODEGEN_H
  25
  26 #include <iostream>
  27 #include <string>
  28 #include <stdio.h>
  29 #include "common.h"
  30 #include "gendata.h"
  31
  32 using std::string;
  33 using std::ostream;
  34
  35 /*
  36  * JavaTabCodeGen
  37  */
  38 struct JavaTabCodeGen : public CodeGenData
  39 {
  40         JavaTabCodeGen( ostream &out ) :
  41                 CodeGenData(out) {}
  42
  43         std::ostream &TO_STATE_ACTION_SWITCH();
  44         std::ostream &FROM_STATE_ACTION_SWITCH();
  45         std::ostream &EOF_ACTION_SWITCH();
  46         std::ostream &ACTION_SWITCH();
  47
  48         std::ostream &COND_KEYS();
  49         std::ostream &COND_SPACES();
  50         std::ostream &KEYS();
  51         std::ostream &INDICIES();
  52         std::ostream &COND_OFFSETS();
  53         std::ostream &KEY_OFFSETS();
  54         std::ostream &INDEX_OFFSETS();
  55         std::ostream &COND_LENS();
  56         std::ostream &SINGLE_LENS();
  57         std::ostream &RANGE_LENS();
  58         std::ostream &TO_STATE_ACTIONS();
  59         std::ostream &FROM_STATE_ACTIONS();
  60         std::ostream &EOF_ACTIONS();
  61         std::ostream &EOF_TRANS();
  62         std::ostream &TRANS_TARGS();
  63         std::ostream &TRANS_ACTIONS();
  64         std::ostream &TRANS_TARGS_WI();
  65         std::ostream &TRANS_ACTIONS_WI();
  66
  67         void BREAK( ostream &ret, int targState );
  68         void GOTO( ostream &ret, int gotoDest, bool inFinish );
  69         void GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
  70         void CALL( ostream &ret, int callDest, int targState, bool inFinish );
  71         void CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish );
  72         void RET( ostream &ret, bool inFinish );
  73
  74         void COND_TRANSLATE();
  75         void LOCATE_TRANS();
  76
  77         virtual void writeExec();
  78         virtual void writeData();
  79         virtual void writeInit();
  80         virtual void writeExports();
  81         virtual void finishRagelDef();
  82
  83         void NEXT( ostream &ret, int nextDest, bool inFinish );
  84         void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
  85
  86         int TO_STATE_ACTION( RedStateAp *state );
  87         int FROM_STATE_ACTION( RedStateAp *state );
  88         int EOF_ACTION( RedStateAp *state );
  89         int TRANS_ACTION( RedTransAp *trans );
  90
  91         /* Determine if we should use indicies. */
  92         void calcIndexSize();
  93
  94 private:
  95         string array_type;
  96         string array_name;
  97         int item_count;
  98         int div_count;
  99
 100 public:
 101
 102         virtual string NULL_ITEM();
 103         virtual ostream &OPEN_ARRAY( string type, string name );
 104         virtual ostream &ARRAY_ITEM( string item, bool last );
 105         virtual ostream &CLOSE_ARRAY();
 106         virtual ostream &STATIC_VAR( string type, string name );
 107         virtual string ARR_OFF( string ptr, string offset );
 108         virtual string CAST( string type );
 109         virtual string GET_KEY();
 110         virtual string CTRL_FLOW();
 111
 112         string FSM_NAME();
 113         string START_STATE_ID();
 114         ostream &ACTIONS_ARRAY();
 115         string GET_WIDE_KEY();
 116         string GET_WIDE_KEY( RedStateAp *state );
 117         string TABS( int level );
 118         string KEY( Key key );
 119         string INT( int i );
 120         void ACTION( ostream &ret, GenAction *action, int targState, bool inFinish );
 121         void CONDITION( ostream &ret, GenAction *condition );
 122         string ALPH_TYPE();
 123         string WIDE_ALPH_TYPE();
 124         string ARRAY_TYPE( unsigned long maxVal );
 125
 126         string ACCESS();
 127
 128         string P();
 129         string PE();
 130         string EOFV();
 131
 132         string CS();
 133         string STACK();
 134         string TOP();
 135         string TOKSTART();
 136         string TOKEND();
 137         string ACT();
 138         string DATA();
 139
 140         string DATA_PREFIX();
 141         string PM() { return "_" + DATA_PREFIX() + "partition_map"; }
 142         string C() { return "_" + DATA_PREFIX() + "cond_spaces"; }
 143         string CK() { return "_" + DATA_PREFIX() + "cond_keys"; }
 144         string K() { return "_" + DATA_PREFIX() + "trans_keys"; }
 145         string I() { return "_" + DATA_PREFIX() + "indicies"; }
 146         string CO() { return "_" + DATA_PREFIX() + "cond_offsets"; }
 147         string KO() { return "_" + DATA_PREFIX() + "key_offsets"; }
 148         string IO() { return "_" + DATA_PREFIX() + "index_offsets"; }
 149         string CL() { return "_" + DATA_PREFIX() + "cond_lengths"; }
 150         string SL() { return "_" + DATA_PREFIX() + "single_lengths"; }
 151         string RL() { return "_" + DATA_PREFIX() + "range_lengths"; }
 152         string A() { return "_" + DATA_PREFIX() + "actions"; }
 153         string TA() { return "_" + DATA_PREFIX() + "trans_actions"; }
 154         string TT() { return "_" + DATA_PREFIX() + "trans_targs"; }
 155         string TSA() { return "_" + DATA_PREFIX() + "to_state_actions"; }
 156         string FSA() { return "_" + DATA_PREFIX() + "from_state_actions"; }
 157         string EA() { return "_" + DATA_PREFIX() + "eof_actions"; }
 158         string ET() { return "_" + DATA_PREFIX() + "eof_trans"; }
 159         string SP() { return "_" + DATA_PREFIX() + "key_spans"; }
 160         string CSP() { return "_" + DATA_PREFIX() + "cond_key_spans"; }
 161         string START() { return DATA_PREFIX() + "start"; }
 162         string ERROR() { return DATA_PREFIX() + "error"; }
 163         string FIRST_FINAL() { return DATA_PREFIX() + "first_final"; }
 164         string CTXDATA() { return DATA_PREFIX() + "ctxdata"; }
 165
 166         void INLINE_LIST( ostream &ret, GenInlineList *inlineList, int targState, bool inFinish );
 167         void EXEC( ostream &ret, GenInlineItem *item, int targState, int inFinish );
 168         void EXECTE( ostream &ret, GenInlineItem *item, int targState, int inFinish );
 169         void LM_SWITCH( ostream &ret, GenInlineItem *item, int targState, int inFinish );
 170         void SET_ACT( ostream &ret, GenInlineItem *item );
 171         void INIT_TOKSTART( ostream &ret, GenInlineItem *item );
 172         void INIT_ACT( ostream &ret, GenInlineItem *item );
 173         void SET_TOKSTART( ostream &ret, GenInlineItem *item );
 174         void SET_TOKEND( ostream &ret, GenInlineItem *item );
 175         void GET_TOKEND( ostream &ret, GenInlineItem *item );
 176         void SUB_ACTION( ostream &ret, GenInlineItem *item,
 177                         int targState, bool inFinish );
 178
 179         string ERROR_STATE();
 180         string FIRST_FINAL_STATE();
 181
 182         ostream &source_warning(const GenInputLoc &loc);
 183         ostream &source_error(const GenInputLoc &loc);
 184
 185         unsigned int arrayTypeSize( unsigned long maxVal );
 186
 187         bool outLabelUsed;
 188         bool againLabelUsed;
 189         bool useIndicies;
 190
 191         void genLineDirective( ostream &out );
 192 };
 193
 194
 195 #endif