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1/* Lists of symbols for Bison
2
3 Copyright (C) 2002 Free Software Foundation, Inc.
4
5 This file is part of Bison, the GNU Compiler Compiler.
6
7 Bison is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 Bison is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Bison; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22#ifndef SYMLIST_H_
23# define SYMLIST_H_
24
25# include "location.h"
26# include "symtab.h"
27
28typedef struct symbol_list
29{
30 struct symbol_list *next;
31 symbol *sym;
32 location location;
33
34 /* The action is attached to the LHS of a rule. */
35 const char *action;
36 location action_location;
37
38 symbol *ruleprec;
39 int dprec;
40 int merger;
41} symbol_list;
42
43
44/* Create a list containing SYM at LOC. */
45symbol_list *symbol_list_new (symbol *sym, location loc);
46
47/* Prepend SYM at LOC to the LIST. */
48symbol_list *symbol_list_prepend (symbol_list *list,
49 symbol *sym,
50 location loc);
51
52/* Free the LIST, but not the symbols it contains. */
53void symbol_list_free (symbol_list *list);
54
55/* Return its length. */
56unsigned int symbol_list_length (symbol_list *list);
57
58/* Get the data type (alternative in the union) of the value for
59 symbol N in rule RULE. */
60uniqstr symbol_list_n_type_name_get (symbol_list *rp, location loc, int n);
61
62#endif /* !SYMLIST_H_ */