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diff src/core_util.sml @ 188:8e9f97508f0d

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Datatype representation optimization
author Adam Chlipala <adamc@hcoop.net>
date Sun, 03 Aug 2008 19:49:21 -0400
parents d11754ffe252
children 9bbf4d383381
line wrap: on
line diff
--- a/src/core_util.sml	Sun Aug 03 19:01:16 2008 -0400
+++ b/src/core_util.sml	Sun Aug 03 19:49:21 2008 -0400
@@ -29,6 +29,12 @@
 
 open Core
 
+fun classifyDatatype xncs =
+    if List.all (fn (_, _, NONE) => true | _ => false) xncs then
+        Enum
+    else
+        Default
+
 structure S = Search
 
 structure Kind = struct
@@ -227,11 +233,11 @@
                 EPrim _ => S.return2 eAll
               | ERel _ => S.return2 eAll
               | ENamed _ => S.return2 eAll
-              | ECon (_, NONE) => S.return2 eAll
-              | ECon (n, SOME e) =>
+              | ECon (_, _, NONE) => S.return2 eAll
+              | ECon (dk, n, SOME e) =>
                 S.map2 (mfe ctx e,
                         fn e' =>
-                           (ECon (n, SOME e'), loc))
+                           (ECon (dk, n, SOME e'), loc))
               | EFfi _ => S.return2 eAll
               | EFfiApp (m, x, es) =>
                 S.map2 (ListUtil.mapfold (fn e => mfe ctx e) es,