view lib/ur/option.urs @ 1566:7328dfeb7c0f

Tweaked Emacs mode to handle many "->" faster.
author Vladimir Shabanov <vshabanoff@gmail.com>
date Mon, 26 Sep 2011 03:29:09 +0400
parents a99b743a3087
children 36428d853c97
line wrap: on
line source
datatype t = datatype Basis.option

val monad : monad t

val eq : a ::: Type -> eq a -> eq (t a)
val ord : a ::: Type -> ord a -> ord (t a)

val isNone : a ::: Type -> t a -> bool
val isSome : a ::: Type -> t a -> bool

val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b
val bind : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> t b

val get : a ::: Type -> a -> option a -> a