I am trying typed/racket for the first time and I can't figure out how to refine a (Listof (U Positive-Byte False)) to (Listof Positive-Byte).
For example > (filter identity '(1 2 3)) - : (Listof Positive-Byte) '(1 2 3) > (filter identity '(1 2 3 #f)) - : (Listof (U False Positive-Byte)) '(1 2 3) It seems that typed/racket can't understand that `identiy` will filter `False` values. What is the proper way to filter this value and make sure that the types won't include `False` branches? Thanks, Wanderley -- 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.
