From 33dbb6c0000a5d82267f984191e7390be86b7dfd Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adamc@hcoop.net>
Date: Tue, 8 Sep 2009 10:55:49 -0400
Subject: dragList demo working, save for Gecko load delay and highlighting

---
 lib/ur/monad.ur | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/ur/monad.ur')

diff --git a/lib/ur/monad.ur b/lib/ur/monad.ur
index d6690839..96c46311 100644
--- a/lib/ur/monad.ur
+++ b/lib/ur/monad.ur
@@ -8,6 +8,10 @@ fun exec [m ::: Type -> Type] (_ : monad m) [ts ::: {Type}] r (fd : folder ts) =
 
 fun ignore [m ::: Type -> Type] (_ : monad m) [t] (v : m t) = x <- v; return ()
 
+fun mp [m] (_ : monad m) [a] [b] f m =
+    v <- m;
+    return (f v)
+
 fun foldR [K] [m] (_ : monad m) [tf :: K -> Type] [tr :: {K} -> Type]
           (f : nm :: Name -> t :: K -> rest :: {K}
                -> [[nm] ~ rest] =>
-- 
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