Index: TODO
===================================================================
diff -u -r27030b244334e022169ea7143ce6d91257a8b653 -r386420862057241aeeaa8034670634b0da02378b
--- TODO	(.../TODO)	(revision 27030b244334e022169ea7143ce6d91257a8b653)
+++ TODO	(.../TODO)	(revision 386420862057241aeeaa8034670634b0da02378b)
@@ -5096,6 +5096,7 @@
 - extended regression test
 - reworked error message generation of slot-forwarder 
   (list all available slot methods with prefix value=)
+- cleaned up relation slot mixin variants
 
 xotcl2:
 - use xotcl::RelationSlot instead of nx::Relationslot in xotcl2
@@ -5106,9 +5107,6 @@
 
 ========================================================================
 TODO:
-- TODO: demangle "slotassign" in "ObjectParameterSlot protected method getParameterOptions" 
-  and check interactions
-- TODO: clean up relation slot mixin variants
 - TODO: define setters for traits
 - TODO: paths in sublibs in regression test incorrect
 - TODO: rename "slotassign" to "slotset"?
Index: library/nx/nx.tcl
===================================================================
diff -u -r27030b244334e022169ea7143ce6d91257a8b653 -r386420862057241aeeaa8034670634b0da02378b
--- library/nx/nx.tcl	(.../nx.tcl)	(revision 27030b244334e022169ea7143ce6d91257a8b653)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision 386420862057241aeeaa8034670634b0da02378b)
@@ -1380,7 +1380,9 @@
     } else {
       lappend options ${:disposition}
     }
-    if {${:name} ne ${:methodname}} {lappend options method=${:methodname}}
+    if {${:name} ne ${:methodname}} {
+      lappend options method=${:methodname}
+    }
     if {${:required}} {
       lappend options required
     } elseif {[info exists :positional] && ${:positional}} {
@@ -1630,71 +1632,30 @@
   #     mixin
   #     filter
 
-  if {0} {
-    ::nx::RelationSlot create ::nx::Object::slot::object-mixin \
-        -multiplicity 0..n \
-        -methodname "::nx::Object::slot::__object::mixin" \
-        -settername "object mixin" -forwardername object-mixin -elementtype mixinreg
-  }
-  if {1} {
-    ::nx::RelationSlot create ::nx::Object::slot::object-mixin \
-        -multiplicity 0..n \
-        -defaultmethods {} \
-        -disposition slotassign \
-        -settername "object mixin" -forwardername object-mixin -elementtype mixinreg
-  }
-  if {0} {
-    ::nx::RelationSlot create ::nx::Object::slot::object-filter \
-        -methodname "::nx::Object::slot::__object::filter" \
-        -multiplicity 0..n \
-        -settername "object filter" -forwardername object-filter -elementtype filterreg
-  }
-  if {1} {
-    ::nx::RelationSlot create ::nx::Object::slot::object-filter \
-        -multiplicity 0..n \
-        -defaultmethods {} \
-        -disposition slotassign \
-        -settername "object filter" -forwardername object-filter -elementtype filterreg
-  }
+  ::nx::RelationSlot create ::nx::Object::slot::object-mixin \
+      -multiplicity 0..n \
+      -defaultmethods {} \
+      -disposition slotassign \
+      -settername "object mixin" -forwardername object-mixin -elementtype mixinreg
 
-  if {0} {
-    #puts stderr =============1
-    ::nx::RelationSlot create ::nx::Class::slot::mixin \
-        -multiplicity 0..n \
-        -methodname "mixin set" \
-        -defaultmethods {get} \
-        -forwardername "class-mixin" -elementtype mixinreg
-  }
-  if {0} {
-    #puts stderr =============2
-    ::nx::RelationSlot create ::nx::Class::slot::mixin \
-        -multiplicity 0..n \
-        -methodname "::nx::Class::slot::mixin set %self class-mixin" \
-        -disposition forward \
-        -forwardername "class-mixin" -elementtype mixinreg
-  }
-  if {1} {
-    ::nx::RelationSlot create ::nx::Class::slot::mixin \
-        -multiplicity 0..n \
-        -defaultmethods {} \
-        -disposition slotassign \
-        -forwardername "class-mixin" -elementtype mixinreg
-  }
+  ::nx::RelationSlot create ::nx::Object::slot::object-filter \
+      -multiplicity 0..n \
+      -defaultmethods {} \
+      -disposition slotassign \
+      -settername "object filter" -forwardername object-filter -elementtype filterreg
 
-  if {0} {
-    ::nx::RelationSlot create ::nx::Class::slot::filter \
-        -multiplicity 0..n \
-        -forwardername class-filter -elementtype filterreg
-  }
-  if {1} {
-    ::nx::RelationSlot create ::nx::Class::slot::filter \
-        -multiplicity 0..n \
-        -defaultmethods {} \
-        -disposition slotassign \
-        -forwardername class-filter -elementtype filterreg
-  } 
+  ::nx::RelationSlot create ::nx::Class::slot::mixin \
+      -multiplicity 0..n \
+      -defaultmethods {} \
+      -disposition slotassign \
+      -forwardername "class-mixin" -elementtype mixinreg
 
-
+    ::nx::RelationSlot create ::nx::Class::slot::filter \
+      -multiplicity 0..n \
+      -defaultmethods {} \
+      -disposition slotassign \
+      -forwardername class-filter -elementtype filterreg
+  
   #
   # Define "class" as a ObjectParameterSlot defined as alias
   #