Mercurial > urweb
view demo/list.urs @ 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 | 4d519baf357c |
children |
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datatype list t = Nil | Cons of t * list t val length : t ::: Type -> list t -> int val rev : t ::: Type -> list t -> list t