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diff lib/ur/list.ur @ 840:e4a02e4fa35c

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Fix unbound name problem in Jscomp injectors; more List stuff
author Adam Chlipala <adamc@hcoop.net>
date Sat, 06 Jun 2009 15:29:34 -0400
parents b2413e4dd109
children 9f0ea203a1ca
line wrap: on
line diff
--- a/lib/ur/list.ur	Sat Jun 06 14:09:30 2009 -0400
+++ b/lib/ur/list.ur	Sat Jun 06 15:29:34 2009 -0400
@@ -150,3 +150,14 @@
         search'
     end
 
+fun foldlM [m] (_ : monad m) [a] [b] f =
+    let
+        fun foldlM' acc ls =
+            case ls of
+                [] => return acc
+              | x :: ls =>
+                acc <- f x acc;
+                foldlM' acc ls
+    in
+        foldlM'
+    end