Index: TODO
===================================================================
diff -u -r24c2302b26cc3d8e608103a269ab3c82392501ff -rdf8c49ffd4cccb5071abd4b7bca0f6d48350c79a
--- TODO	(.../TODO)	(revision 24c2302b26cc3d8e608103a269ab3c82392501ff)
+++ TODO	(.../TODO)	(revision df8c49ffd4cccb5071abd4b7bca0f6d48350c79a)
@@ -5352,10 +5352,25 @@
   "::C object mixin add|clear|delete|get|guard|set" and not
   "::C mixin add|clear|delete|get|guard|set" as before.
 
+nsf.c:
+- new function DependentSubClasses() to determine all classes that inherit 
+  from a given class. The result extend TransitiveSubClasses() by including 
+  class mixin relationships. 
+- simplify NsfParameterCacheClassInvalidateCmd() by using the new function
+  DependentSubClasses(). With the new implementation, 
+  NsfParameterCacheClassInvalidateCmd() is as efficient as before without
+  to MostGeneralSuperclass optimization (but being complete now) when 
+  working on the root classes (an more efficient on subclasses).
 
 ========================================================================
 TODO:
 
+- check other places whether DependentSubClasses() should be used instead of 
+  TransitiveSubClasses()
+- how should we treat cyclic subclass relationships built via class mixins.
+  (either complain at mixin registration or soft warnings or ignoring - 
+  since redundant mixin classes are ignored so far).
+
 - should we change "/obj/ info lookup syntax /methodName/" to return obj and method as well?
   (similar to "info method syntax /methodName/")
 - we could drop methods::object::info::objectparameter