Ur/Web: lib/ur/option.urs annotate

Some notes on 'T' for update/delete combinators

author	Adam Chlipala <adam@chlipala.net>
date	Thu, 20 Oct 2011 09:27:37 -0400
parents	a99b743a3087
children	36428d853c97

rev	line source
adamc@841	1 datatype t = datatype Basis.option
adamc@841	2
adam@1544	3 val monad : monad t
adam@1544	4
adamc@846	5 val eq : a ::: Type -> eq a -> eq (t a)
adamc@961	6 val ord : a ::: Type -> ord a -> ord (t a)
adamc@846	7
adamc@944	8 val isNone : a ::: Type -> t a -> bool
adamc@841	9 val isSome : a ::: Type -> t a -> bool
adamc@844	10
adamc@844	11 val mp : a ::: Type -> b ::: Type -> (a -> b) -> t a -> t b
adamc@846	12 val bind : a ::: Type -> b ::: Type -> (a -> option b) -> t a -> t b
adamc@1068	13
adamc@1068	14 val get : a ::: Type -> a -> option a -> a

Mercurial > urweb