Mercurial > urweb
diff tests/nest.ur @ 448:85819353a84f
First Unnest tests working
author | Adam Chlipala <adamc@hcoop.net> |
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date | Sat, 01 Nov 2008 15:58:55 -0400 |
parents | |
children | 07f6576aeb0a |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/nest.ur Sat Nov 01 15:58:55 2008 -0400 @@ -0,0 +1,41 @@ +fun add x = + let + fun add' y = x + y + in + add' 1 + add' 2 + end + +fun f (x : int) = + let + fun page () = return <xml><body> + <a link={page ()}>{[x]}</a> + </body></xml> + in + page + end + +fun f (x : int) = + let + fun page1 () = return <xml><body> + <a link={page2 ()}>{[x]}</a> + </body></xml> + + and page2 () = + case Some True of + Some r => return <xml><body><a link={page1 ()}>{[r]}</a></body></xml> + | _ => return <xml>Error</xml> + in + page1 + end + +datatype list t = Nil | Cons of t * list t + +fun length (t ::: Type) (ls : list t) = + let + fun length' ls acc = + case ls of + Nil => acc + | Cons (_, ls') => length' ls' (acc + 1) + in + length' ls 0 + end