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95612cfa60
(STRUNIQ_EQ, struniq_assert, struniq_assert_p): New. Use struniq for symbols. * src/symtab.h (symbol_t): The tag member is a struniq. (symbol_type_set): Adjust. * src/symtab.c (symbol_new): Takes a struniq. (symbol_free): Don't free the tag member. (hash_compare_symbol_t, hash_symbol_t): Rename as... (hash_compare_symbol, hash_symbol): these. Use the fact that tags as struniqs. (symbol_get): Use struniq_new. * src/symlist.h, src/symlist.c (symbol_list_n_type_name_get): Returns a strniq. * src/reader.h (merger_list, grammar_currentmerge_set): The name and type members are struniqs. * src/reader.c (get_merge_function) (grammar_current_rule_merge_set): Adjust. (TYPE, current_type): Are struniq. Use struniq for file names. * src/files.h, src/files.c (infile): Split into... (grammar_file, current_file): these. * src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust. * src/reduce.c (reduce_print): Likewise. * src/getargs.c (getargs): Likewise. * src/complain.h, src/complain.c: Likewise. * src/main.c (main): Call struniqs_new early enough to use it for file names. Don't free the input file name.
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/* Lists of symbols for Bison
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Copyright (C) 2002 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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Bison is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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Bison is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bison; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "system.h"
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#include "complain.h"
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#include "symlist.h"
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/*----------------------------------------------.
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| Create a list containing SYMBOL at LOCATION. |
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`----------------------------------------------*/
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symbol_list_t *
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symbol_list_new (symbol_t *sym, location_t location)
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{
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symbol_list_t *res = XMALLOC (symbol_list_t, 1);
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res->next = NULL;
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res->sym = sym;
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res->location = location;
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res->action = NULL;
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res->ruleprec = NULL;
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res->dprec = 0;
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res->merger = 0;
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return res;
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}
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/*-----------------------------------------.
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| Prepend SYMBOL at LOCATION to the LIST. |
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`-----------------------------------------*/
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symbol_list_t *
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symbol_list_prepend (symbol_list_t *list,
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symbol_t *symbol, location_t location)
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{
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symbol_list_t *res = symbol_list_new (symbol, location);
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res->next = list;
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return res;
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}
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/*-------------------------------------------------.
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| Free the LIST, but not the symbols it contains. |
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`-------------------------------------------------*/
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void
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symbol_list_free (symbol_list_t *list)
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{
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LIST_FREE (symbol_list_t, list);
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}
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/*--------------------.
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| Return its length. |
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`--------------------*/
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unsigned int
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symbol_list_length (symbol_list_t *list)
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{
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int res = 0;
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for (/* Nothing. */; list; list = list->next)
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++res;
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return res;
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}
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/*--------------------------------------------------------------.
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| Get the data type (alternative in the union) of the value for |
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| symbol N in rule RULE. |
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`--------------------------------------------------------------*/
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struniq_t
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symbol_list_n_type_name_get (symbol_list_t *rule, location_t location, int n)
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{
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int i;
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symbol_list_t *rp;
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if (n < 0)
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{
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complain_at (location, _("invalid $ value"));
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return NULL;
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}
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rp = rule;
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i = 0;
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while (i < n)
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{
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rp = rp->next;
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if (rp == NULL || rp->sym == NULL)
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{
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complain_at (location, _("invalid $ value"));
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return NULL;
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}
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++i;
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}
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return rp->sym->type_name;
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}
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