ref: 09af6b8f6597c29208b8725b4f67bd7ed6d45e85
dir: /test/traitimpl.myr/
use std trait frobable @a = frob : (val : @a -> @a) ;; impl frobable int = frob = {val -> val * 2 } ;; impl frobable int16 = frob = {val -> val * 4 } ;; generic foo = {x : @a::frobable -> frob(x) } const main = { var a, b a = foo(123) b = foo(11 castto(int16)) std.put("%i,%w\n", a, b) }