view tests/open.ur @ 1502:2f9b7382dd1d

First tutorial chapter ready
author Adam Chlipala <adam@chlipala.net>
date Sat, 16 Jul 2011 14:12:14 -0400
parents 71bafe66dbe1
children
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structure S = struct
        type t = int
        val x = 0

        structure S' : sig type u val y : t end = struct
                type u = t
                val y = x
        end

        signature Sig = sig
                type t
                val x : t
        end
end

open S.S'
open S
open S'

structure S' : Sig = S