ref: 5f8ce4d91c5ae77dad2eb17b7a005723b2b8a90f dir: /test/stdopt-mk.myr/
use std const f = {x if x == 123 -> `std.Some 42 else -> `std.None ;; } const main = { var v v = f(123) match v `std.Some x: -> x;; `std.None: -> 123;; ;; }