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diff src/monoize.sml @ 1572:5530a8075b62

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IF THEN ELSE conditional for SQL.
author Karn Kallio <kkallio@eka>
date Fri, 14 Oct 2011 02:33:03 -0430
parents f403e129c276
children 34364e383bed
line wrap: on
line diff
--- a/src/monoize.sml	Sat Oct 08 17:23:58 2011 -0400
+++ b/src/monoize.sml	Fri Oct 14 02:33:03 2011 -0430
@@ -2804,6 +2804,31 @@
                  fm)
             end
 
+          | (L.ECApp (
+             (L.ECApp (
+              (L.ECApp (
+               (L.ECApp (
+                (L.EFfi ("Basis", "sql_if_then_else"), _), _),
+                _), _),
+               _), _),
+              _), _)) =>
+            let
+                val s = (L'.TFfi ("Basis", "string"), loc)
+                fun sc s = (L'.EPrim (Prim.String s), loc)
+            in
+                ((L'.EAbs ("if", s, (L'.TFun (s, s), loc),
+                           (L'.EAbs ("then", s, (L'.TFun (s, s), loc),
+                                     (L'.EAbs ("else", s, (L'.TFun (s, s), loc),
+                                               strcat [sc "(CASE WHEN (",
+                                                       (L'.ERel 2, loc),
+                                                       sc ") THEN (",
+                                                       (L'.ERel 1, loc),
+                                                       sc ") ELSE (",
+                                                       (L'.ERel 0, loc),
+                                                       sc ") END)"]), loc)), loc)), loc),
+                 fm)
+            end
+
           | L.ECApp (
             (L.ECApp (
              (L.ECApp (