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view tests/functor.lac @ 44:a9f3ce2d1b9b
Elaborating functor applications
author | Adam Chlipala <adamc@hcoop.net> |
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date | Thu, 19 Jun 2008 17:04:08 -0400 |
parents | d94c484337d0 |
children | 44a1bc863f0f |
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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 F2 : functor (M : S) : T where type t = M.t = F structure F3 : functor (M : S) : T = F (*structure F4 : functor (M : S) : sig type q end = F*) (*structure F5 : functor (M : S) : T where type t = int = F*) 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