[hcoop/debian/mlton.git] / lib / mlton / basic / result.sig

(* Copyright (C) 1999-2006, 2008 Henry Cejtin, Matthew Fluet, Suresh
 *    Jagannathan, and Stephen Weeks.
 *
 * MLton is released under a BSD-style license.
 * See the file MLton-LICENSE for details.
 *)

signature RESULT =
   sig
      datatype 'a t =
         No of string
       | Yes of 'a

      val isNo: 'a t -> bool
      val isYes: 'a t -> bool
      val layout: ('a -> Layout.t) -> 'a t -> Layout.t
      val map: 'a t * ('a -> 'b) -> 'b t
   end
Commit	Line	Data
7f918cf1 CE	1	(* Copyright (C) 1999-2006, 2008 Henry Cejtin, Matthew Fluet, Suresh
	2	* Jagannathan, and Stephen Weeks.
	3	*
	4	* MLton is released under a BSD-style license.
	5	* See the file MLton-LICENSE for details.
	6	*)
	7
	8	signature RESULT =
	9	sig
	10	datatype 'a t =
	11	No of string
	12	\| Yes of 'a
	13
	14	val isNo: 'a t -> bool
	15	val isYes: 'a t -> bool
	16	val layout: ('a -> Layout.t) -> 'a t -> Layout.t
	17	val map: 'a t * ('a -> 'b) -> 'b t
	18	end