Mercurial > urweb
view tests/mutual.ur @ 1886:b7cd3c7c7edd
Interpret 'table' signature items more flexibly, automatically adding (Ur) constraints to support a kind of subtyping over (SQL) constraint sets
author | Adam Chlipala <adam@chlipala.net> |
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date | Mon, 04 Nov 2013 15:14:23 -0500 |
parents | 61a1f5c5ae2c |
children |
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datatype foo = A | B of bar and bar = C | D of foo val q = B (D A) fun main () = return <xml> {case q of B (D A) => <xml>Good</xml> | _ => <xml>Bad</xml>} </xml>