Mercurial > urweb
view tests/optionM.ur @ 1588:65d6488c82d5
Fix confusing error message when record unification fails because enclosed types are incompatible
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 05 Nov 2011 09:56:52 -0400 |
parents | a99b743a3087 |
children |
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fun main () : transaction page = return <xml>{[x <- Some 1; y <- Some 2; return (x + y)]}</xml>