src/symtab.h

   1 /* Definitions for symtab.c and callers, part of bison,
   2    Copyright (C) 1984, 1989, 1992 Free Software Foundation, Inc.
   3
   4 This file is part of Bison, the GNU Compiler Compiler.
   5
   6 Bison is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 Bison is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Bison; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21
  22 #define TABSIZE 1009
  23
  24
  25 /*  symbol classes  */
  26
  27 #define SUNKNOWN 0
  28 #define STOKEN   1      /* terminal symbol */
  29 #define SNTERM   2      /* non-terminal */
  30
  31 #define SALIAS  -9991   /* for symbol generated with an alias */
  32
  33 typedef
  34   struct bucket
  35     {
  36       struct bucket *link;
  37       struct bucket *next;
  38       char *tag;
  39       char *type_name;
  40       short value;
  41       short prec;
  42       short assoc;
  43       short user_token_number;
  44                         /* special value SALIAS in the identifier
  45                          half of the identifier-symbol pair for an alias */
  46       struct bucket *alias;
  47                         /* points to the other in the identifier-symbol
  48                          pair for an alias */
  49       char class;
  50     }
  51   bucket;
  52
  53
  54 extern bucket **symtab;
  55 extern bucket *firstsymbol;
  56
  57 extern bucket *getsym PARAMS((char *));