1 | /* Input parser for Bison |
2 | |
3 | Copyright (C) 2000-2003, 2005-2007, 2009-2015, 2018-2019 Free |
4 | Software Foundation, Inc. |
5 | |
6 | This file is part of Bison, the GNU Compiler Compiler. |
7 | |
8 | This program 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 3 of the License, or |
11 | (at your option) any later version. |
12 | |
13 | This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ |
20 | |
21 | #ifndef READER_H_ |
22 | # define READER_H_ |
23 | |
24 | # include "location.h" |
25 | # include "symlist.h" |
26 | # include "named-ref.h" |
27 | |
28 | # include "parse-gram.h" |
29 | |
30 | typedef struct merger_list |
31 | { |
32 | struct merger_list* next; |
33 | uniqstr name; |
34 | uniqstr type; |
35 | location type_declaration_loc; |
36 | } merger_list; |
37 | |
38 | /* From the parser. */ |
39 | extern int gram_debug; |
40 | int gram_parse (void); |
41 | |
42 | |
43 | /* From reader.c. */ |
44 | void grammar_start_symbol_set (symbol *sym, location loc); |
45 | void grammar_current_rule_begin (symbol *lhs, location loc, |
46 | named_ref *lhs_named_ref); |
47 | void grammar_current_rule_end (location loc); |
48 | void grammar_midrule_action (void); |
49 | /* Apply %empty to the current rule. */ |
50 | void grammar_current_rule_empty_set (location loc); |
51 | void grammar_current_rule_prec_set (symbol *precsym, location loc); |
52 | void grammar_current_rule_dprec_set (int dprec, location loc); |
53 | void grammar_current_rule_merge_set (uniqstr name, location loc); |
54 | void grammar_current_rule_expect_sr (int count, location loc); |
55 | void grammar_current_rule_expect_rr (int count, location loc); |
56 | void grammar_current_rule_symbol_append (symbol *sym, location loc, |
57 | named_ref *nref); |
58 | /* Attach an ACTION to the current rule. */ |
59 | void grammar_current_rule_action_append (const char *action, location loc, |
60 | named_ref *nref, uniqstr tag); |
61 | /* Attach a PREDICATE to the current rule. */ |
62 | void grammar_current_rule_predicate_append (const char *predicate, location loc); |
63 | void reader (void); |
64 | void free_merger_functions (void); |
65 | |
66 | extern merger_list *merge_functions; |
67 | |
68 | /* Was %union seen? */ |
69 | extern bool union_seen; |
70 | |
71 | /* Should rules have a default precedence? */ |
72 | extern bool default_prec; |
73 | |
74 | #endif /* !READER_H_ */ |
75 | |