Mercurial > urweb
view tests/functor.ur @ 1466:e2d7bd41f527
Remember to remove explicit table projections in SQLite UPDATE SET values
author | Adam Chlipala <adam@chlipala.net> |
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date | Mon, 30 May 2011 07:48:08 -0400 |
parents | 71bafe66dbe1 |
children |
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signature S = sig type t val z : t val s : t -> t end signature T = sig type t val three : t end functor F (M : S) : T where type t = M.t = struct type t = M.t val three = M.s (M.s (M.s M.z)) end structure O = F (struct type t = int val z = 0 val s = fn x : t => x end) val three : int = O.three structure S = struct type t = int val z = 0 val s = fn x : t => x end structure SO = F (S) val three : int = SO.three structure SS : S = S structure SSO = F (SS) val three : SS.t = SSO.three val main = three