Regenerate.

[bison.git] / src / reader.c

diff --git a/src/reader.c b/src/reader.c
index 0fa162d9ce786c650fad8db949ea0bba2ea3298c..75a23692dd8c91ffe8e0125805445accc776491f 100644 (file)
--- a/src/reader.c
+++ b/src/reader.c
@@ -212,17 +212,16 @@ grammar_current_rule_begin (symbol *lhs, location loc)
 }
 
 
-/*-----------------------------------------------------------------.
-| A symbol is typed if it has a declared %type, or if it is a      |
-| mid-rule symbol (i.e., the generated LHS replacing a mid-rule    |
-| action) that was assigned to, as in `exp: { $$ = 1; } { $$ = $1; |
-| }'.                                                              |
-`-----------------------------------------------------------------*/
+/*----------------------------------------------------------------------.
+| A symbol should be used if it has a destructor, or if it is a         |
+| mid-rule symbol (i.e., the generated LHS replacing a mid-rule         |
+| action) that was assigned to, as in "exp: { $$ = 1; } { $$ = $1; }".  |
+`----------------------------------------------------------------------*/
 
 static bool
-symbol_typed_p (const symbol_list *s)
+symbol_should_be_used (symbol_list const *s)
 {
-  return (s->sym->type_name
+  return (s->sym->destructor
          || (s->midrule && s->midrule->used));
 }
 
@@ -261,13 +260,13 @@ grammar_rule_check (const symbol_list *r)
                 _("empty rule for typed nonterminal, and no action"));
     }
 
-  /* Check that typed symbol values are used.  */
+  /* Check that symbol values that should be used are in fact used.  */
   {
     symbol_list const *l = r;
     int n = 0;
     for (; l && l->sym; l = l->next, ++n)
       if (! (l->used
-            || !symbol_typed_p (l)
+            || !symbol_should_be_used (l)
             /* The default action, $$ = $1, `uses' both.  */
             || (!r->action && (n == 0 || n == 1))))
        {
@@ -301,7 +300,7 @@ grammar_current_rule_end (location loc)
 | rule.                                                              |
 `-------------------------------------------------------------------*/
 
-static void
+void
 grammar_midrule_action (void)
 {
   /* Since the action was written out with this rule's number, we must
@@ -395,14 +394,13 @@ grammar_current_rule_symbol_append (symbol *sym, location loc)
   grammar_symbol_append (sym, loc);
 }
 
-/* Attach an ACTION to the current rule.  If needed, move the previous
-   action as a mid-rule action.  */
+/* Attach an ACTION to the current rule.  */
 
 void
 grammar_current_rule_action_append (const char *action, location loc)
 {
-  if (current_rule->action)
-    grammar_midrule_action ();
+  /* There's no need to invoke grammar_midrule_action here, since the
+     scanner already did it if necessary.  */
   current_rule->action = action;
   current_rule->action_location = loc;
 }