ref: 3d20a6d5e0c554e9f3d0d3f504f4dfb28901ebb7
dir: /test/matchunion_sl.myr/
use std
/* checks pattern matching on unions with arguments.
exits with 42. */
type u = union
`Int int
`Str byte[:]
`Nil
;;
const main = {
var v
v = `Str "foo"
match v
/*
`Int 127:
-> 42
;;
*/
`Str s:
std.put("%s\n", s)
;;
/*
`Nil:
;;
*/
;;
-> 0
}