What happens if you declare an external function of type 'a -> 'b? Obj.magic is trivial to implement, it's just the typing that is wonky. (Disclaimer: I have ne

What happens if you declare an external function of type 'a -> 'b? Obj.magic is trivial to implement, it's just the typing that is wonky. (Disclaimer: I have never looked at BuckleScript or js_of_ocaml.)