Re: no $$ in %destructor = no unset value warnings?

[Paul Eggert]

"Joel E. Denny" <address@hidden> writes:

> shouldn't Bison warn when there's %union or <...> usage in the
> grammar but a $$ without a type appears in a %destructor/%printer?

You mean, something like this?

     %union { char *p; }
     %token STRING
     %destructor { free ($$); } STRING

It would make sense to warn about this, yes, though as the C compiler
will generate a type error for this sort of thing it doesn't sound
that urgent.  (I can't think of an example where the C compiler
wouldn't warn, but perhaps I'm not thinking outside the box
enough....)