Mercurial > urweb

diff lib/ur/option.urs @ 841:44c2c089ca15

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Start of Option; Basis.current; fix missed cases in Jscomp.isNullable
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Jun 2009 11:13:18 -0400
parents
children 74a1e3bdf430
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/ur/option.urs	Sun Jun 07 11:13:18 2009 -0400
@@ -0,0 +1,3 @@
+datatype t = datatype Basis.option
+
+val isSome : a ::: Type -> t a -> bool