From 50cc9f8d2c5710345e6198a984559963d2221110 Mon Sep 17 00:00:00 2001 From: Simon Cruanes Date: Sat, 28 Jun 2014 04:06:58 +0200 Subject: [PATCH] CCopt.pure --- core/CCOpt.ml | 2 ++ core/CCOpt.mli | 3 +++ 2 files changed, 5 insertions(+) diff --git a/core/CCOpt.ml b/core/CCOpt.ml index 6ed63e5f..07be2451 100644 --- a/core/CCOpt.ml +++ b/core/CCOpt.ml @@ -64,6 +64,8 @@ let flat_map f o = match o with | None -> None | Some x -> f x +let pure x = Some x + let (<*>) f x = match f, x with | None, _ | _, None -> None diff --git a/core/CCOpt.mli b/core/CCOpt.mli index a8d60d6e..2c0e1d4f 100644 --- a/core/CCOpt.mli +++ b/core/CCOpt.mli @@ -68,6 +68,9 @@ val sequence_l : 'a t list -> 'a list t (** {2 Applicative} *) +val pure : 'a -> 'a t +(** Alias to {!return} *) + val (<*>) : ('a -> 'b) t -> 'a t -> 'b t val (<$>) : ('a -> 'b) -> 'a t -> 'b t