blob: d86a3aa6e9629ce076763e444b015c54e3102229 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
/* Grammar reduction for Bison.
Copyright (C) 2000-2002, 2007, 2009-2015, 2018-2022 Free Software
Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
This program 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 3 of the License, or
(at your option) any later version.
This program 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 this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef REDUCE_H_
# define REDUCE_H_
void reduce_grammar (void);
void reduce_output (FILE *out);
bool reduce_token_unused_in_grammar (symbol_number i);
/** Whether symbol \a i is useless in the grammar.
* \pre reduce_grammar was called before.
*/
bool reduce_nonterminal_useless_in_grammar (const sym_content *sym);
void reduce_free (void);
/** Map initial nterm numbers to the new ones. Built by
* reduce_grammar. Size nnterms + nuseless_nonterminals. */
extern symbol_number *nterm_map;
extern int nuseless_nonterminals;
extern int nuseless_productions;
#endif /* !REDUCE_H_ */
|
