(***********************************************************************)
(*                                                                     *)
(*                                OCaml                                *)
(*                                                                     *)
(*                 Jeremie Dimino, Jane Street Europe                  *)
(*                                                                     *)
(*  Copyright 2015 Institut National de Recherche en Informatique et   *)
(*  en Automatique.  All rights reserved.  This file is distributed    *)
(*  under the terms of the Q Public License version 1.0.               *)
(*                                                                     *)
(***********************************************************************)

type t = ..

module M = struct
  type t += A
  type t += B of int
end

type t += C
type t += D of int * string

let () =
  assert (Obj.extension_constructor  M.A
          == [%extension_constructor M.A]);
  assert (Obj.extension_constructor (M.B 42)
          == [%extension_constructor M.B]);
  assert (Obj.extension_constructor  C
          == [%extension_constructor C]);
  assert (Obj.extension_constructor (D (42, ""))
          == [%extension_constructor D])

let () = print_endline "OK"