Mercurial > urweb
view lib/ur/option.urs @ 963:6f9d1565de56
Testing Dlist MaxLength with constant value
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Sat, 19 Sep 2009 13:55:37 -0400 |
parents | 8c37699de273 |
children | 757dbac0454d |
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