Also warn about non-used mid-rule values.

[bison.git] / src / symlist.h

diff --git a/src/symlist.h b/src/symlist.h
index 480c97d444f1c28f989df475b6f647724cd908bb..bff56683aa94d5b62a279cab7472f6a9c7bb080e 100644 (file)
--- a/src/symlist.h
+++ b/src/symlist.h
@@ -32,6 +32,10 @@ typedef struct symbol_list
   symbol *sym;
   location location;
 
+  /* If this symbol is the generated lhs for a mid-rule, a pointer to
+     that mid-rule.  */
+  struct symbol_list *mid_rule;
+
   /* The action is attached to the LHS of a rule. */
   const char *action;
   location action_location;