Mercurial > urweb
view tests/cancel.ur @ 1964:072656016dfa
Add another simple case for record unification between alpha-equivalent constructors
author | Adam Chlipala <adam@chlipala.net> |
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date | Wed, 29 Jan 2014 18:19:25 -0500 |
parents | dfb38a333816 |
children |
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type t = {A : int, B : float, C : string} type u = {A : int, C : string, D : bool} fun f (x : t) = x fun g (x : u) = f x fun h [ts] [ts ~ [A]] (r : $([A = int] ++ ts)) : $([A = int, B = float] ++ ts) = r