view tests/optionM.ur @ 1584:c37d8341940a

Shorter, more focused error messages about undetermined unification variables
author Adam Chlipala <adam@chlipala.net>
date Sat, 29 Oct 2011 17:30:34 -0400
parents a99b743a3087
children
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fun main () : transaction page = return <xml>{[x <- Some 1;
                                               y <- Some 2;
                                               return (x + y)]}</xml>