tests: AT_YYERROR_DEFINE: prepare for list of ints.

[bison.git] / src / symlist.c

diff --git a/src/symlist.c b/src/symlist.c
index 974d974ccf447555847f797c8e9fdf503780e87e..bf47da1eb05993d1a2ebce2e73f5ac11b0dd66a5 100644 (file)
--- a/src/symlist.c
+++ b/src/symlist.c
@@ -1,6 +1,7 @@
 /* Lists of symbols for Bison
 
 /* Lists of symbols for Bison
 

-   Copyright (C) 2002, 2005, 2006, 2007 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005-2007, 2009-2012 Free Software Foundation,
+   Inc.

 
    This file is part of Bison, the GNU Compiler Compiler.
 
 
    This file is part of Bison, the GNU Compiler Compiler.
 


@@ -146,7 +147,13 @@ symbol_list_prepend (symbol_list *list, symbol_list *node)
 void
 symbol_list_free (symbol_list *list)
 {
 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);
+      free (node);
+    }

 }
 
 
 }
 
 


@@ -208,6 +215,12 @@ symbol_list_n_type_name_get (symbol_list *l, location loc, int n)
   return l->content.sym->type_name;
 }
 
   return l->content.sym->type_name;
 }
 

+bool
+symbol_list_null (symbol_list *node)
+{
+  return !node ||
+    (node->content_type == SYMLIST_SYMBOL && !(node->content.sym));
+}

 
 void
 symbol_list_destructor_set (symbol_list *node, char const *code, location loc)
 
 void
 symbol_list_destructor_set (symbol_list *node, char const *code, location loc)