view tests/mutual.ur @ 2094:0d898b086bbe

Improve wildify heuristic for finding record type-class witnesses
author Adam Chlipala <adam@chlipala.net>
date Tue, 23 Dec 2014 13:42:20 -0500
parents 61a1f5c5ae2c
children
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datatype foo = A | B of bar
and bar = C | D of foo

val q = B (D A)

fun main () = return <xml>
  {case q of
       B (D A) => <xml>Good</xml>
     | _ => <xml>Bad</xml>}
</xml>