Mercurial > urweb
diff tests/unpoly.ur @ 1185:338be96f8533
Undo an Especialize change that turned out to be unecessary
author | Adam Chlipala <adamc@hcoop.net> |
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date | Tue, 16 Mar 2010 10:09:01 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/unpoly.ur Tue Mar 16 10:09:01 2010 -0400 @@ -0,0 +1,28 @@ +val current = return (Some "1") +fun resolve (_ : string) = return (Some "2") + +fun checkDeps deps = + u <- current; + List.foldlM (fn s (good, errs) => + v' <- resolve s; + case v' of + None => + return (False, <xml> + {errs} + Unknown library path <tt>{[s]}</tt>.<br/> + </xml>) + | Some v' => + b <- return True; + if b then + return (good, errs) + else + return (False, <xml> + {errs} + Access denied to <tt>{[s]}</tt>.<br/> + </xml>)) (True, <xml/>) deps + +fun main () = + p <- checkDeps ("a" :: "b" :: []); + return <xml><body> + {p.2} + </body></xml>