Mercurial > urweb
view tests/open.ur @ 1588:65d6488c82d5
Fix confusing error message when record unification fails because enclosed types are incompatible
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 05 Nov 2011 09:56:52 -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