X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/4f82b42a9d5ce6f0baa70714f25346ba9303be73..89ff1b5e71a6d8aa34b3578282528adb43b198cd:/src/symlist.c diff --git a/src/symlist.c b/src/symlist.c index b97c2ecb..50915c18 100644 --- a/src/symlist.c +++ b/src/symlist.c @@ -1,23 +1,22 @@ /* Lists of symbols for Bison - Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2002, 2005-2007, 2009-2013 Free Software Foundation, + Inc. This file is part of Bison, the GNU Compiler Compiler. - Bison is free software; you can redistribute it and/or modify + 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 2, or (at your option) - any later version. + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. - Bison is distributed in the hope that it will be useful, + 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 Bison; see the file COPYING. If not, write to - the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #include #include "system.h" @@ -25,7 +24,6 @@ #include "complain.h" #include "symlist.h" - /*--------------------------------------. | Create a list containing SYM at LOC. | `--------------------------------------*/ @@ -37,18 +35,21 @@ symbol_list_sym_new (symbol *sym, location loc) res->content_type = SYMLIST_SYMBOL; res->content.sym = sym; - res->location = loc; + res->location = res->sym_loc = loc; + res->named_ref = NULL; res->midrule = NULL; res->midrule_parent_rule = NULL; res->midrule_parent_rhs_index = 0; - res->action = NULL; - res->used = false; - + /* Members used for LHS only. */ res->ruleprec = NULL; + res->percent_empty_loc = empty_location; + code_props_none_init (&res->action_props); res->dprec = 0; + res->dprec_location = empty_location; res->merger = 0; + res->merger_declaration_location = empty_location; res->next = NULL; @@ -66,25 +67,13 @@ symbol_list_type_new (uniqstr type_name, location loc) symbol_list *res = xmalloc (sizeof *res); res->content_type = SYMLIST_TYPE; - res->content.type_name = type_name; - res->location = loc; - res->next = NULL; + res->content.sem_type = xmalloc (sizeof (semantic_type)); + res->content.sem_type->tag = type_name; + res->content.sem_type->location = loc; + res->content.sem_type->status = undeclared; - return res; -} - - -/*----------------------------------------------------. -| Create a list containing a %symbol-default at LOC. | -`----------------------------------------------------*/ - -symbol_list * -symbol_list_default_new (location loc) -{ - symbol_list *res = xmalloc (sizeof *res); - - res->content_type = SYMLIST_DEFAULT; - res->location = loc; + res->location = res->sym_loc = loc; + res->named_ref = NULL; res->next = NULL; return res; @@ -98,12 +87,17 @@ symbol_list_default_new (location loc) void symbol_list_syms_print (const symbol_list *l, FILE *f) { + char const *sep = ""; for (/* Nothing. */; l && l->content.sym; l = l->next) { + fputs (sep, f); + fputs (l->content_type == SYMLIST_SYMBOL ? "symbol: " + : l->content_type == SYMLIST_TYPE ? "type: " + : "invalid content_type: ", + f); symbol_print (l->content.sym, f); - fprintf (stderr, l->used ? " used" : " unused"); - if (l && l->content.sym) - fprintf (f, ", "); + fputs (l->action_props.is_value_used ? " used" : " unused", f); + sep = ", "; } } @@ -120,6 +114,23 @@ symbol_list_prepend (symbol_list *list, symbol_list *node) } +/*-------------------------. +| Append NODE to the LIST. | +`-------------------------*/ + +symbol_list * +symbol_list_append (symbol_list *list, symbol_list *node) +{ + if (!list) + return node; + symbol_list *next = list; + while (next->next) + next = next->next; + next->next = node; + return list; +} + + /*-----------------------------------------------. | Free the LIST, but not the items it contains. | `-----------------------------------------------*/ @@ -127,7 +138,15 @@ symbol_list_prepend (symbol_list *list, symbol_list *node) void symbol_list_free (symbol_list *list) { - LIST_FREE (symbol_list, list); + symbol_list *node, *next; + for (node = list; node; node = next) + { + next = node->next; + named_ref_free (node->named_ref); + if (node->content_type == SYMLIST_TYPE) + free (node->content.sem_type); + free (node); + } } @@ -164,7 +183,7 @@ symbol_list_n_get (symbol_list *l, int n) l = l->next; if (l == NULL || (l->content_type == SYMLIST_SYMBOL && l->content.sym == NULL)) - return NULL; + return NULL; } return l; @@ -182,59 +201,38 @@ symbol_list_n_type_name_get (symbol_list *l, location loc, int n) l = symbol_list_n_get (l, n); if (!l) { - complain_at (loc, _("invalid $ value: $%d"), n); + complain (&loc, complaint, _("invalid $ value: $%d"), n); return NULL; } aver (l->content_type == SYMLIST_SYMBOL); return l->content.sym->type_name; } - -/*--------------------------------------. -| The item N in symbol list L is USED. | -`--------------------------------------*/ - -void -symbol_list_n_used_set (symbol_list *l, int n, bool used) -{ - l = symbol_list_n_get (l, n); - if (l) - l->used = used; -} - -void -symbol_list_destructor_set (symbol_list *node, const char *destructor, - location loc) +bool +symbol_list_null (symbol_list *node) { - switch (node->content_type) - { - case SYMLIST_SYMBOL: - symbol_destructor_set (node->content.sym, destructor, loc); - break; - case SYMLIST_TYPE: - semantic_type_destructor_set ( - semantic_type_get (node->content.type_name), destructor, loc); - break; - case SYMLIST_DEFAULT: - default_destructor_set (destructor, loc); - break; - } + return !node || + (node->content_type == SYMLIST_SYMBOL && !(node->content.sym)); } void -symbol_list_printer_set (symbol_list *node, const char *printer, location loc) +symbol_list_code_props_set (symbol_list *node, code_props_type kind, + code_props const *cprops) { switch (node->content_type) { - case SYMLIST_SYMBOL: - symbol_printer_set (node->content.sym, printer, loc); - break; - case SYMLIST_TYPE: - semantic_type_printer_set ( - semantic_type_get (node->content.type_name), printer, loc); - break; - case SYMLIST_DEFAULT: - default_printer_set (printer, loc); - break; + case SYMLIST_SYMBOL: + symbol_code_props_set (node->content.sym, kind, cprops); + if (node->content.sym->status == undeclared) + node->content.sym->status = used; + break; + case SYMLIST_TYPE: + semantic_type_code_props_set + (semantic_type_get (node->content.sem_type->tag, + &node->content.sem_type->location), + kind, cprops); + if (node->content.sem_type->status == undeclared) + node->content.sem_type->status = used; + break; } }