Mercurial > urweb

annotate tests/functor.lac @ 42:b3fbbc6cb1e5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Elaborating 'where'
author Adam Chlipala <adamc@hcoop.net>
date Thu, 19 Jun 2008 16:35:40 -0400
parents 1405d8c26790
children d94c484337d0
rev   line source
adamc@40 1 signature S = sig
adamc@40 2 type t
adamc@40 3 val z : t
adamc@40 4 val s : t -> t
adamc@40 5 end
adamc@40 6
adamc@40 7 signature T = sig
adamc@40 8 type t
adamc@40 9 val three : t
adamc@40 10 end
adamc@40 11
adamc@42 12 functor F (M : S) : T where type t = M.t = struct
adamc@41 13 type t = M.t
adamc@40 14 val three = M.s (M.s (M.s M.z))
adamc@40 15 end