Use variants to support objects as semantic values.

[bison.git] / src / symlist.c

diff --git a/src/symlist.c b/src/symlist.c
index 245196b27fbf9477f27e66ab649df7893973f4b2..6c6b57daa4c289bcd2c252059c05862d73bb7987 100644 (file)
--- a/src/symlist.c
+++ b/src/symlist.c
@@ -1,23 +1,21 @@
 /* Lists of symbols for Bison
 
-   Copyright (C) 2002, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005, 2006, 2007 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 <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 #include "system.h"
@@ -43,8 +41,7 @@ symbol_list_sym_new (symbol *sym, location loc)
   res->midrule_parent_rule = NULL;
   res->midrule_parent_rhs_index = 0;
 
-  res->action = NULL;
-  res->used = false;
+  code_props_none_init (&res->action_props);
 
   res->ruleprec = NULL;
   res->dprec = 0;
@@ -91,9 +88,9 @@ symbol_list_default_tagged_new (location loc)
 }
 
 
-/*----------------------------------------.
-| Create a list containing a <!> at LOC.  |
-`----------------------------------------*/
+/*---------------------------------------.
+| Create a list containing a <> at LOC.  |
+`---------------------------------------*/
 
 symbol_list *
 symbol_list_default_tagless_new (location loc)
@@ -118,7 +115,7 @@ symbol_list_syms_print (const symbol_list *l, FILE *f)
   for (/* Nothing. */; l && l->content.sym; l = l->next)
     {
       symbol_print (l->content.sym, f);
-      fprintf (stderr, l->used ? " used" : " unused");
+      fprintf (stderr, l->action_props.is_value_used ? " used" : " unused");
       if (l && l->content.sym)
        fprintf (f, ", ");
     }
@@ -207,57 +204,50 @@ symbol_list_n_type_name_get (symbol_list *l, location loc, int n)
 }
 
 
-/*--------------------------------------.
-| 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)
+symbol_list_destructor_set (symbol_list *node, char const *code, location loc)
 {
+  code_props destructor;
+  code_props_symbol_action_init (&destructor, code, loc);
+  code_props_translate_code (&destructor);
   switch (node->content_type)
     {
       case SYMLIST_SYMBOL:
-        symbol_destructor_set (node->content.sym, destructor, loc);
+        symbol_destructor_set (node->content.sym, &destructor);
         break;
       case SYMLIST_TYPE:
         semantic_type_destructor_set (
-          semantic_type_get (node->content.type_name), destructor, loc);
+          semantic_type_get (node->content.type_name), &destructor);
         break;
       case SYMLIST_DEFAULT_TAGGED:
-        default_tagged_destructor_set (destructor, loc);
+        default_tagged_destructor_set (&destructor);
         break;
       case SYMLIST_DEFAULT_TAGLESS:
-        default_tagless_destructor_set (destructor, loc);
+        default_tagless_destructor_set (&destructor);
         break;
     }
 }
 
 void
-symbol_list_printer_set (symbol_list *node, const char *printer, location loc)
+symbol_list_printer_set (symbol_list *node, char const *code, location loc)
 {
+  code_props printer;
+  code_props_symbol_action_init (&printer, code, loc);
+  code_props_translate_code (&printer);
   switch (node->content_type)
     {
       case SYMLIST_SYMBOL:
-        symbol_printer_set (node->content.sym, printer, loc);
+        symbol_printer_set (node->content.sym, &printer);
         break;
       case SYMLIST_TYPE:
         semantic_type_printer_set (
-          semantic_type_get (node->content.type_name), printer, loc);
+          semantic_type_get (node->content.type_name), &printer);
         break;
       case SYMLIST_DEFAULT_TAGGED:
-        default_tagged_printer_set (printer, loc);
+        default_tagged_printer_set (&printer);
         break;
       case SYMLIST_DEFAULT_TAGLESS:
-        default_tagless_printer_set (printer, loc);
+        default_tagless_printer_set (&printer);
         break;
     }
 }