From 756d334463a8c8490ff9d1af2c9e636420a28a28 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Wed, 3 Oct 2001 22:23:14 +0000
Subject: [PATCH] oops, invalid downcasts

---
 dtool/src/interrogate/interfaceMaker.cxx | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dtool/src/interrogate/interfaceMaker.cxx b/dtool/src/interrogate/interfaceMaker.cxx
index 811fb37f02..7efee037a3 100644
--- a/dtool/src/interrogate/interfaceMaker.cxx
+++ b/dtool/src/interrogate/interfaceMaker.cxx
@@ -581,7 +581,10 @@ record_object(TypeIndex type_index) {
       record_function(itype, itype.derivation_get_upcast(di));
     }
     if (itype.derivation_has_downcast(di)) {
-      record_function(itype, itype.derivation_get_downcast(di));
+      // Downcasts are methods of the base class, not the child class.
+      TypeIndex base_type_index = itype.get_derivation(di);
+      const InterrogateType &base_type = idb->get_type(base_type_index);
+      record_function(base_type, itype.derivation_get_downcast(di));
     }
   }