view lib/ur/option.urs @ 2218:f7113855f3b7

More invalidation progress.
author Ziv Scully <ziv@mit.edu>
date Tue, 11 Nov 2014 04:25:20 -0500
parents 36428d853c97
children
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
val unsafeGet : a ::: Type -> option a -> a