Mercurial > urweb
view lib/ur/option.urs @ 1374:8cdd25f9cfd0
Next attempt at getting time parsing right
author | Adam Chlipala <adam@chlipala.net> |
---|---|
date | Wed, 29 Dec 2010 15:58:54 -0500 |
parents | 757dbac0454d |
children | a99b743a3087 |
line wrap: on
line source
datatype t = datatype Basis.option 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