3 ms·

These are unbound usings.

• yorwba 6y ago
  Those two programs don't use a in the Nothing case, they have Just _ instead, i.e. a hole. Those are just as valid as any other program with a hole. You could fill the hole with undefined if you wanted to.
  • Twisol 6y ago
    The article was edited in the interim. The error the ancestor posts describes did exist before (I saw it, too), but no longer.
  • dllthomas 6y ago
    As noted by Twisol, those holes previously contained `(fab a)`. I'd delete my comment now that it's addressed, but 1) it's too late, and 2) I'm too happy about "unbound usings".