Ur/Web: tests/datatypeMod.ur annotate

Tutorial: TLC meets type classes and modules

author	Adam Chlipala <adam@chlipala.net>
date	Sun, 17 Jul 2011 13:04:07 -0400
parents	71bafe66dbe1
children

rev	line source
adamc@157	1 structure M : sig datatype t = A \| B end = struct
adamc@157	2 datatype t = A \| B
adamc@157	3 end
adamc@157	4
adamc@163	5 val ac = M.A
adamc@158	6
adamc@157	7 datatype u = datatype M.t
adamc@157	8
adamc@163	9 val ac : M.t = A
adamc@163	10 val a2 : u = ac
adamc@158	11
adamc@158	12 structure M2 = M
adamc@158	13 structure M3 : sig datatype t = datatype M.t end = M2
adamc@158	14 structure M4 : sig datatype t = datatype M.t end = M
adamc@158	15
adamc@163	16 val bc : M3.t = M4.B
adamc@159	17
adamc@159	18 structure Ma : sig type t end = M
adamc@160	19
adamc@160	20 structure Magain : sig datatype t = A \| B end = M
adamc@163	21
adamc@163	22 val page : M.t -> page = fn x => <html><body>
adamc@163	23 Hi.
adamc@163	24 </body></html>
adamc@163	25
adamc@163	26 val main : unit -> page = fn () => <html><body>
adamc@163	27 <a link={page a2}>Link</a>
adamc@163	28 </body></html>

Mercurial > urweb