Mercurial > urweb
view tests/datatypeP2.ur @ 1864:1aa9629e3a4c
Allow [where con] to descend within submodule structure; open submodule constraints while checking later signature items
author | Adam Chlipala <adam@chlipala.net> |
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date | Mon, 19 Aug 2013 12:25:32 -0400 |
parents | 71bafe66dbe1 |
children |
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datatype sum a b = Left of a | Right of b val l : sum int string = Left 5 val r : sum int string = Right "Hi" val show = fn x : sum int string => case x of Left _ => "Left _" | Right s => s val page = fn x => <html><body> {cdata (show x)} </body></html> val main : unit -> page = fn () => <html><body> <li><a link={page l}>Left</a></li> <li><a link={page r}>Right</a></li> </body></html>