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

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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 5e1a4b12c83a
children 74a1e3bdf430
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line diff
--- a/lib/ur/basis.urs	Sat Jun 06 15:29:34 2009 -0400
+++ b/lib/ur/basis.urs	Sun Jun 07 11:13:18 2009 -0400
@@ -107,6 +107,7 @@
 con signal :: Type -> Type
 val signal_monad : monad signal
 val signal : t ::: Type -> source t -> signal t
+val current : t ::: Type -> signal t -> transaction t
 
 
 (** HTTP operations *)