view tests/whiteout.ur @ 2044:42ae25a354f8

Retweak the last tweak to allow type inference to succeed in a strict superset of the places where it used to succeed
author Adam Chlipala <adam@chlipala.net>
date Tue, 29 Jul 2014 14:46:06 -0400
parents f0224c7f12bb
children
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table t : { Chan : option (channel unit) }

fun main () : transaction page =
    ch <- channel;
    dml (INSERT INTO t (Chan) VALUES ({[Some ch]}));
    return <xml><body>Did it.</body></xml>