annotate tests/cancel.ur @ 2216:70ec9bb337be

Progress towards invalidation based on equalities of fields.
author Ziv Scully <ziv@mit.edu>
date Mon, 10 Nov 2014 22:04:40 -0500
parents dfb38a333816
children
rev   line source
adam@1582 1 type t = {A : int, B : float, C : string}
adam@1582 2 type u = {A : int, C : string, D : bool}
adam@1582 3
adam@1582 4 fun f (x : t) = x
adam@1582 5 fun g (x : u) = f x
adam@1582 6
adam@1582 7 fun h [ts] [ts ~ [A]] (r : $([A = int] ++ ts)) : $([A = int, B = float] ++ ts) = r