Index: library/nx/nx.tcl
===================================================================
diff -u -r09b4bca7c8d5c44f6be0b2c04ebfcdb7a58fd5ae -rf177ffa3fb3583ff5e9879b1770f2cb23391b634
--- library/nx/nx.tcl	(.../nx.tcl)	(revision 09b4bca7c8d5c44f6be0b2c04ebfcdb7a58fd5ae)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision f177ffa3fb3583ff5e9879b1770f2cb23391b634)
@@ -1025,6 +1025,7 @@
   MetaSlot public object method parseParameterSpec {
     {-class ""}
     {-defaultopts ""}
+    target
     spec
     default:optional
   } {
@@ -1048,7 +1049,11 @@
         } elseif {[string match type=* $property]} {
 	  set class [:requireClass ::nx::VariableSlot $class]
           set type [string range $property 5 end]
-          if {![string match ::* $type]} {set type ::$type}
+          if {$type eq ""} {
+            unset type
+          } elseif {![string match ::* $type]} {
+            set type [namespace qualifier $target]::$type
+          }
         } elseif {[string match arg=* $property]} {
           set argument [string range $property 4 end]
           lappend opts -arg $argument
@@ -1088,7 +1093,7 @@
     default:optional
   } {
 
-    lassign [:parseParameterSpec -class $class -defaultopts $defaultopts $spec] \
+    lassign [:parseParameterSpec -class $class -defaultopts $defaultopts $target $spec] \
 	name parameterOptions class opts
 
     lappend opts -incremental $incremental
@@ -2238,7 +2243,7 @@
     #puts stderr "Object variable $spec accessor $accessor nocomplain $nocomplain incremental $incremental"
 
     # get name and list of parameter options
-    lassign [::nx::MetaSlot parseParameterSpec -class $class $spec] \
+    lassign [::nx::MetaSlot parseParameterSpec -class $class [self] $spec] \
 	name parameterOptions class options
     array set opts $options
 
Index: tests/parameters.test
===================================================================
diff -u -r33d063a3296efd044652cba8668e25cef4797b66 -rf177ffa3fb3583ff5e9879b1770f2cb23391b634
--- tests/parameters.test	(.../parameters.test)	(revision 33d063a3296efd044652cba8668e25cef4797b66)
+++ tests/parameters.test	(.../parameters.test)	(revision f177ffa3fb3583ff5e9879b1770f2cb23391b634)
@@ -3367,9 +3367,61 @@
 
     ? {set bar} 2
     ? {set baz} hi
+  }
+
+#
+# Testing name binding for type=/class/ converter
+#
+
+nx::test case type-converter-binding {
+  #
+  # Binding strategy: Unqualified names are qualified by the namespace
+  # of the slot-owning object (domain). Resolution is lazy in the
+  # sense that a qualified name is produced but not resolved upon slot
+  # definition.
+  #
+  # set type [namespace qualifiers /obj/]::$type
+  #
+  # This has the same effect as (repeatedly) writing out
+  # type=[namespace current]::$type, or similar, as part of a property
+  # or variable spec.
+  #
+
+  namespace eval :: {
+    namespace eval ns1 {
+      namespace eval ns2 {
+        nx::Class create A
+      }
+      nx::Class create A
+      nx::Class create B {
+        :property b1:object,type=A; # rewritten to ::ns1::A (not ::A as previously!).
+        ? [list [:info slots b1] cget -type] ::ns1::A 
+        :property b2:object,type=ns2::A; # rewritten to ::ns1::ns2::A (not ::ns2::A as previously!).
+        ? [list [:info slots b2] cget -type] ::ns1::ns2::A
+      }
+    }
+    nx::Class create A {
+      :property a1:object,type=B; # rewritten to ::B
+      ? [list [:info slots a1] cget -type] ::B
+      :property a2:object,type=ns1::B; # rewritten to ::ns1::B
+      ? [list [:info slots a2] cget -type] ::ns1::B
+      :property a3:object,type=::B; # untouched
+      ? [list [:info slots a3] cget -type] ::B
+      :property a4:object,type=[expr {[namespace current] eq "::" ? "" : [namespace current]}]::B; # untouched, ::B
+      ? [list [:info slots a4] cget -type] ::B
+      :property a5:object,type=[namespace which B]; # untouched, "", will be dropped
+      ? [list [:info slots a5] cget -type] {can't read "type": no such variable}
+    }
+    nx::Class create B
+  }
+
+  ? {catch {::ns1::B create b1 -b1 [::ns1::A new] -b2 [::ns1::ns2::A new]}} 0
+  
+
 }
 
 
+
 #
 # Local variables:
 #    mode: tcl