Index: TODO
===================================================================
diff -u -r0d9049bafe2426251bd7d8e9a36faa68e91ad518 -rd9d84c89e05b9bd5cc02b37725ce32a7f08ec2ad
--- TODO	(.../TODO)	(revision 0d9049bafe2426251bd7d8e9a36faa68e91ad518)
+++ TODO	(.../TODO)	(revision d9d84c89e05b9bd5cc02b37725ce32a7f08ec2ad)
@@ -5515,7 +5515,7 @@
 - updated "/cls/ info filters" and "/obj/ info object filters"
 - dropped "/cls/ info mixin guard" and "/obj/ info object mixin guard"
   dropped "/cls/ info filter guard" and "/obj/ info object filter guard"
-  (use "-guard option insteads)
+  (use "-guard option insteads)y
 - updated "/cls/ mixins ...", "/obj/ object mixins ...",
   "/cls/ filteres ...", "/obj/ object filters ..."
 
@@ -5528,14 +5528,20 @@
 - reduce variable scope
 - make sure to follow nonnull assumptions
 
+nsf.c:
+- implement a new approach to error reporting in ensembles:
+  instead of trying to find the "right" place to report the best "error",
+  compute the longest valid ensemble prefix from all the stack frames.
 
+nx.tcl:
+- simplify the info ensembles on nx::Object or nx::Class significantly,
+  by making use if ensemble-next. 
+- delete "info unknown", since this is not called.
 ========================================================================
 TODO:
 
-- EnsembleObject->unknown is still not correct
-  "C info object mixin classes" complains about "object"
-  and not about "mixin".
-  The message for "C info mixin classes" is fine
+- check "info info" on nx::Class and nx::Object. 
+  Probably broken ... but not really needed.
 
 - finish plural reform
 - update migration guide and tutorial
Index: library/nx/nx.tcl
===================================================================
diff -u -r14dd62afced4b677c75a9ac6e3bc71497c6c746d -rd9d84c89e05b9bd5cc02b37725ce32a7f08ec2ad
--- library/nx/nx.tcl	(.../nx.tcl)	(revision 14dd62afced4b677c75a9ac6e3bc71497c6c746d)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision d9d84c89e05b9bd5cc02b37725ce32a7f08ec2ad)
@@ -473,9 +473,8 @@
       set path [lrange $callInfo 1 end-1]
       set m [lindex $callInfo end]
       set obj [lindex $callInfo 0]
-      ::nsf::__db_show_stack
-      puts stderr "CI=<$callInfo> args <$args>"
-
+      #::nsf::__db_show_stack
+      #puts stderr "CI=<$callInfo> args <$args>"
       #puts stderr "### [list $obj ::nsf::methods::object::info::lookupmethods -path \"$path *\"]"
       if {[catch {set valid [$obj ::nsf::methods::object::info::lookupmethods -path "$path *"]} errorMsg]} {
 	set valid ""
@@ -788,9 +787,6 @@
   # be the same as defined above.
   ######################################################################
 
-  EnsembleObject create ::nx::Class::slot::__info
-  Class alias info ::nx::Class::slot::__info
-
   #
   # The following test is just for the redefinition case, after a
   # "package forget". We clear "info method" for ::nx::Object to avoid
@@ -801,17 +797,10 @@
   }
 
   #
-  # Copy all info methods except the sub-objects to
-  # ::nx::Class::slot::__info
+  # There is not need to copy the "info object" ensemble to
+  # ::nx::Class since this is reached via ensemble "next" in
+  # nx::Object.
   #
-  nsf::object::property ::nx::Class::slot::__info keepcallerself false
-  foreach m [::nsf::directdispatch ::nx::Object::slot::__info ::nsf::methods::object::info::methods] {
-    if {[::nsf::directdispatch ::nx::Object::slot::__info ::nsf::methods::object::info::method type $m] eq "object"} continue
-    set definition [::nsf::directdispatch ::nx::Object::slot::__info ::nsf::methods::object::info::method definition $m]
-    ::nx::Class::slot::__info {*}[lrange $definition 1 end]
-    unset definition
-  }
-  nsf::object::property ::nx::Class::slot::__info keepcallerself true
 
   Class eval {
     :alias "info lookup"         ::nx::Object::slot::__info::lookup
@@ -853,11 +842,6 @@
     return "valid options are: [join [lsort $methods] {, }]"
   }
 
-  Object protected method "info unknown" {method obj:object args} {
-    return -code error \
-	"[::nsf::self] unknown info option \"$method\"; [$obj info info]"
-  }
-
   Object method "info info" {} {::nx::internal::infoOptions ::nx::Object::slot::__info}
   Class  method "info info" {} {::nx::internal::infoOptions ::nx::Class::slot::__info}