That's okay. I wrote a really fancy workaround, whose API consists of (S).
(: S (-> (Option String) String)) (define (S s) (cast S String)) By the way, Typed Racket picked up the second statically discovered bug as I keep moving stuff out of untyped modules. Not surprisingly, neither bug had been discovered in usage, but both instances were valid possible uses of the system. So, having to punt with (S) is an excellent tradeoff. Thanks for continued Racket evolution. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.