view tests/datatype.ur @ 1639:6c00d8af6239

Add a new scoping check for unification variables, to fix a type inference bug
author Adam Chlipala <adam@chlipala.net>
date Sun, 18 Dec 2011 11:29:13 -0500
parents f387d12193ba
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