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diff src/mono_util.sml @ 283:c0e4ac23522d

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'error' function
author Adam Chlipala <adamc@hcoop.net>
date Sun, 07 Sep 2008 10:02:27 -0400
parents 09c66a30ef32
children 4260ad920c36
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line diff
--- a/src/mono_util.sml	Sun Sep 07 09:28:13 2008 -0400
+++ b/src/mono_util.sml	Sun Sep 07 10:02:27 2008 -0400
@@ -197,6 +197,13 @@
                                                         fn result' =>
                                                            (ECase (e', pes', {disc = disc', result = result'}), loc)))))
 
+              | EError (e, t) =>
+                S.bind2 (mfe ctx e,
+                         fn e' =>
+                            S.map2 (mft t,
+                                    fn t' =>
+                                       (EError (e', t'), loc)))
+
               | EStrcat (e1, e2) =>
                 S.bind2 (mfe ctx e1,
                       fn e1' =>