Mercurial > urweb
comparison tests/recBad.lac @ 238:44a1663ad893
Checking for well-formed 'val rec'
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Thu, 28 Aug 2008 13:13:16 -0400 |
parents | |
children | fc6f04889bf2 |
comparison
equal
deleted
inserted
replaced
237:9182068c9d7c | 238:44a1663ad893 |
---|---|
1 datatype list a = Nil | Cons of a * list a | |
2 | |
3 val rec append : t ::: Type -> list t -> list t -> list t = fn t ::: Type => fn ls1 => fn ls2 => | |
4 case ls1 of | |
5 Nil => ls2 | |
6 | Cons (h, t) => Cons (h, append t ls2) | |
7 | |
8 (*val rec ones : list int = Cons (1, ones)*) | |
9 val rec ones : unit -> list int = fn () => Cons (1, ones ()) |