Mercurial > urweb
view tests/datatype.ur @ 312:f387d12193ba
Datatype positivity check
author | Adam Chlipala <adamc@hcoop.net> |
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date | Tue, 09 Sep 2008 09:15:00 -0400 |
parents | 71bafe66dbe1 |
children |
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datatype t = A | B val a = A val b = B datatype foo = C of t val c = C a datatype list = Nil | Cons of {Head : int, Tail : list} val nil = Nil val l1 = Cons {Head = 0, Tail = nil} datatype term = App of term * term | Abs of term -> term