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view lib/ur/option.urs @ 1829:aadfc1a138d8

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Removed unused parent() function which conflicts with window.parent.
author Vladimir Shabanov <vshabanoff@gmail.com>
date Mon, 22 Oct 2012 01:49:22 +0400
parents a99b743a3087
children 36428d853c97
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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