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diff src/elab_util.sml @ 171:c7a6e6dbc318

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Elaborating some basic pattern matching
author Adam Chlipala <adamc@hcoop.net>
date Thu, 31 Jul 2008 10:06:27 -0400
parents 06a98129b23f
children d11754ffe252
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line diff
--- a/src/elab_util.sml	Tue Jul 29 16:38:15 2008 -0400
+++ b/src/elab_util.sml	Thu Jul 31 10:06:27 2008 -0400
@@ -308,6 +308,17 @@
                          fn k' =>
                             (EFold k', loc))
 
+              | ECase (e, pes, t) =>
+                S.bind2 (mfe ctx e,
+                         fn e' =>
+                            S.bind2 (ListUtil.mapfold (fn (p, e) =>
+                                                         S.map2 (mfe ctx e,
+                                                              fn e' => (p, e'))) pes,
+                                    fn pes' =>
+                                       S.map2 (mfc ctx t,
+                                               fn t' =>
+                                                  (ECase (e', pes', t'), loc))))
+
               | EError => S.return2 eAll
     in
         mfe