From 46e60fb6904b05340446e12d4a88a090b19b85fa Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adamc@hcoop.net>
Date: Tue, 2 Mar 2010 16:00:48 -0500
Subject: Tone down Reduce and compensate with a new push-lambda-inside-case
 rule in MonoOpt; expand more Basis synonyms in Monoize

---
 src/mono_opt.sml | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/mono_opt.sml')

diff --git a/src/mono_opt.sml b/src/mono_opt.sml
index 5d81d24d..fb6ff264 100644
--- a/src/mono_opt.sml
+++ b/src/mono_opt.sml
@@ -348,6 +348,22 @@ fun exp e =
                             result = ran}), loc)
         end
 
+      | ECase (discE, pes, {disc, result = (TFun (dom, ran), loc)}) =>
+        let
+            fun doBody (p, e) =
+                let
+                    val pb = MonoEnv.patBindsN p
+                in
+                    (EApp (MonoEnv.liftExpInExp pb e, (ERel pb, loc)), loc)
+                end
+        in
+            EAbs ("x", dom, ran,
+                  (optExp (ECase (MonoEnv.liftExpInExp 0 discE,
+                                  map (fn (p, e) => (p, doBody (p, e))) pes,
+                                  {disc = disc,
+                                   result = ran}), loc), loc))
+        end
+
       | EWrite (EQuery {exps, tables, state, query,
                         initial = (EPrim (Prim.String ""), _),
                         body = (EStrcat ((EPrim (Prim.String s), _),
-- 
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