Index: TODO
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- TODO	(.../TODO)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ TODO	(.../TODO)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -1517,6 +1517,9 @@
 - renamed ::nsf::cmd::ObjectInfo into ::nsf::methods::object::info
 - renamed ::nsf::cmd::ClassInfo into ::nsf::methods::class::info
 
+- renamed ::nsf::cmd::Object into ::nsf::methods::object
+- renamed ::nsf::cmd::Class into ::nsf::methods::class
+
 TODO: 
 - extend coro regression test
 - remove traces of xowish. remove tclAppInt?
Index: doc/next-migration.html
===================================================================
diff -u -r8ee718fe7e27c3df71bc659f3261710a4aaf5805 -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- doc/next-migration.html	(.../next-migration.html)	(revision 8ee718fe7e27c3df71bc659f3261710a4aaf5805)
+++ doc/next-migration.html	(.../next-migration.html)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -1438,17 +1438,14 @@
 <h3>Exit Handlers</h3>
 <p>
 The exit hander interface changed from a method of
-<code>::xotcl::Object</code> into three Tcl procs in the <code>::nsf</code>
-namespace. Next provides now:
+<code>::xotcl::Object</code> into the tcl command <code>::nsf::exithandler</code>:
 <pre>
-   ::nsf::setExitHandler script
-   ::nsf::getExitHandler
-   ::nsf::unsetExitHandler
+   ::nsf::exithandler set|get|unset ?arg?
 </pre>
 
 
 <hr>
 <address></address>
-<!-- hhmts start --> Last modified: Fri Sep 24 17:34:10 CEST 2010 <!-- hhmts end -->
+<!-- hhmts start --> Last modified: Sun Sep 26 14:16:38 CEST 2010 <!-- hhmts end -->
 </body>
 </html>
Index: generic/gentclAPI.decls
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- generic/gentclAPI.decls	(.../gentclAPI.decls)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ generic/gentclAPI.decls	(.../gentclAPI.decls)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -7,9 +7,9 @@
 # namespaces for types of methods
 array set ns {
   nsfCmd           "::nsf"
-  objectMethod     "::nsf::cmd::Object"
+  objectMethod     "::nsf::methods::object"
   objectInfoMethod "::nsf::methods::object::info"
-  classMethod      "::nsf::cmd::Class"
+  classMethod      "::nsf::methods::class"
   classInfoMethod  "::nsf::methods::class::info"
   checkMethod      "::nsf::cmd::ParameterType"
 }
Index: generic/predefined.h
===================================================================
diff -u -r6a0e62b53f8b405d11f009e3c0acb2098702d921 -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- generic/predefined.h	(.../predefined.h)	(revision 6a0e62b53f8b405d11f009e3c0acb2098702d921)
+++ generic/predefined.h	(.../predefined.h)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -22,18 +22,21 @@
 "set rel \"mixin\"}\n"
 "set oldSetting [::nsf::relation $object $rel]\n"
 "uplevel [list ::nsf::relation $object $rel [linsert $oldSetting end $args]]}\n"
-"::nsf::provide_method autoname {::nsf::alias autoname ::nsf::cmd::Object::autoname}\n"
-"::nsf::provide_method exists   {::nsf::alias  exists ::nsf::cmd::Object::exists}\n"
+"::nsf::provide_method autoname {::nsf::alias autoname ::nsf::methods::object::autoname}\n"
+"::nsf::provide_method exists   {::nsf::alias  exists ::nsf::methods::object::exists}\n"
 "proc ::nsf::infoError msg {\n"
 "regsub -all \" <object>\" $msg \"\" msg\n"
 "regsub -all \" <class>\" $msg \"\" msg\n"
 "regsub {\\\"} $msg \"\\\"info \" msg\n"
 "error $msg \"\"}\n"
-"proc ::nsf::unsetExitHandler {} {\n"
-"proc ::nsf::__exitHandler {} {}}\n"
-"proc ::nsf::setExitHandler {newbody} {::proc ::nsf::__exitHandler {} $newbody}\n"
-"proc ::nsf::getExitHandler {} {::info body ::nsf::__exitHandler}\n"
-"::nsf::unsetExitHandler\n"
+"proc ::nsf::exithandler {args} {\n"
+"lassign $args up value\n"
+"switch {$op} {\n"
+"set {::proc ::nsf::__exithandler {} $value}\n"
+"get {::info body ::nsf::__exithandler}\n"
+"unset {::proc ::nsf::__exithandler {} {;}}\n"
+"default {puts \"syntax: ::nsf::exithandler set|get|unset ?arg?\"}}}\n"
+"::nsf::exithandler unset\n"
 "proc tmpdir {} {\n"
 "foreach e [list TMPDIR TEMP TMP] {\n"
 "if {[info exists ::env($e)] \\\n"
Index: generic/predefined.tcl
===================================================================
diff -u -r25f4f3c883ff0021b8564377f6658afb69c346c8 -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- generic/predefined.tcl	(.../predefined.tcl)	(revision 25f4f3c883ff0021b8564377f6658afb69c346c8)
+++ generic/predefined.tcl	(.../predefined.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -58,8 +58,8 @@
   #
   # provide some popular methods for "method require"
   #
-  ::nsf::provide_method autoname {::nsf::alias autoname ::nsf::cmd::Object::autoname}
-  ::nsf::provide_method exists   {::nsf::alias  exists ::nsf::cmd::Object::exists}
+  ::nsf::provide_method autoname {::nsf::alias autoname ::nsf::methods::object::autoname}
+  ::nsf::provide_method exists   {::nsf::alias  exists ::nsf::methods::object::exists}
 
   #
   # error handler for info
@@ -75,15 +75,17 @@
   #
   # exit handlers
   #
-  proc ::nsf::unsetExitHandler {} {
-    proc ::nsf::__exitHandler {} {
-      # clients should append exit handlers to this proc body
+  proc ::nsf::exithandler {args} {
+    lassign $args up value
+    switch {$op} {
+      set {::proc ::nsf::__exithandler {} $value}
+      get {::info body ::nsf::__exithandler}
+      unset {::proc ::nsf::__exithandler {} {;}}
+      default {puts "syntax: ::nsf::exithandler set|get|unset ?arg?"}
     }
   }
-  proc ::nsf::setExitHandler {newbody} {::proc ::nsf::__exitHandler {} $newbody}
-  proc ::nsf::getExitHandler {} {::info body ::nsf::__exitHandler}
   # initialize exit handler
-  ::nsf::unsetExitHandler
+  ::nsf::exithandler unset
 
   #
   # determine platform aware temp directory
Index: generic/tclAPI.h
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- generic/tclAPI.h	(.../tclAPI.h)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ generic/tclAPI.h	(.../tclAPI.h)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -141,10 +141,10 @@
   
 static CONST char *method_command_namespace_names[] = {
   "::nsf::methods::object::info",
-  "::nsf::cmd::Object",
+  "::nsf::methods::object",
   "::nsf::cmd::ParameterType",
   "::nsf::methods::class::info",
-  "::nsf::cmd::Class"
+  "::nsf::methods::class"
 };
 static int NsfCAllocMethodStub(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv []);
 static int NsfCCreateMethodStub(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv []);
@@ -2029,29 +2029,29 @@
 }
 
 static methodDefinition method_definitions[] = {
-{"::nsf::cmd::Class::alloc", NsfCAllocMethodStub, 1, {
+{"::nsf::methods::class::alloc", NsfCAllocMethodStub, 1, {
   {"name", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Class::create", NsfCCreateMethodStub, 2, {
+{"::nsf::methods::class::create", NsfCCreateMethodStub, 2, {
   {"name", 1, 0, ConvertToString},
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Class::dealloc", NsfCDeallocMethodStub, 1, {
+{"::nsf::methods::class::dealloc", NsfCDeallocMethodStub, 1, {
   {"object", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Class::filterguard", NsfCFilterGuardMethodStub, 2, {
+{"::nsf::methods::class::filterguard", NsfCFilterGuardMethodStub, 2, {
   {"filter", 1, 0, ConvertToString},
   {"guard", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Class::mixinguard", NsfCMixinGuardMethodStub, 2, {
+{"::nsf::methods::class::mixinguard", NsfCMixinGuardMethodStub, 2, {
   {"mixin", 1, 0, ConvertToString},
   {"guard", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Class::new", NsfCNewMethodStub, 2, {
+{"::nsf::methods::class::new", NsfCNewMethodStub, 2, {
   {"-childof", 0, 1, ConvertToObject},
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Class::recreate", NsfCRecreateMethodStub, 2, {
+{"::nsf::methods::class::recreate", NsfCRecreateMethodStub, 2, {
   {"name", 1, 0, ConvertToTclobj},
   {"args", 0, 0, ConvertToNothing}}
 },
@@ -2241,53 +2241,53 @@
 {"::nsf::__db_show_stack", NsfShowStackCmdStub, 0, {
   }
 },
-{"::nsf::cmd::Object::autoname", NsfOAutonameMethodStub, 3, {
+{"::nsf::methods::object::autoname", NsfOAutonameMethodStub, 3, {
   {"-instance", 0, 0, ConvertToString},
   {"-reset", 0, 0, ConvertToString},
   {"name", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Object::cleanup", NsfOCleanupMethodStub, 0, {
+{"::nsf::methods::object::cleanup", NsfOCleanupMethodStub, 0, {
   }
 },
-{"::nsf::cmd::Object::configure", NsfOConfigureMethodStub, 1, {
+{"::nsf::methods::object::configure", NsfOConfigureMethodStub, 1, {
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Object::destroy", NsfODestroyMethodStub, 0, {
+{"::nsf::methods::object::destroy", NsfODestroyMethodStub, 0, {
   }
 },
-{"::nsf::cmd::Object::exists", NsfOExistsMethodStub, 1, {
+{"::nsf::methods::object::exists", NsfOExistsMethodStub, 1, {
   {"var", 1, 0, ConvertToString}}
 },
-{"::nsf::cmd::Object::filterguard", NsfOFilterGuardMethodStub, 2, {
+{"::nsf::methods::object::filterguard", NsfOFilterGuardMethodStub, 2, {
   {"filter", 1, 0, ConvertToString},
   {"guard", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Object::instvar", NsfOInstVarMethodStub, 1, {
+{"::nsf::methods::object::instvar", NsfOInstVarMethodStub, 1, {
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Object::mixinguard", NsfOMixinGuardMethodStub, 2, {
+{"::nsf::methods::object::mixinguard", NsfOMixinGuardMethodStub, 2, {
   {"mixin", 1, 0, ConvertToString},
   {"guard", 1, 0, ConvertToTclobj}}
 },
-{"::nsf::cmd::Object::noinit", NsfONoinitMethodStub, 0, {
+{"::nsf::methods::object::noinit", NsfONoinitMethodStub, 0, {
   }
 },
-{"::nsf::cmd::Object::require_namespace", NsfORequireNamespaceMethodStub, 0, {
+{"::nsf::methods::object::require_namespace", NsfORequireNamespaceMethodStub, 0, {
   }
 },
-{"::nsf::cmd::Object::residualargs", NsfOResidualargsMethodStub, 1, {
+{"::nsf::methods::object::residualargs", NsfOResidualargsMethodStub, 1, {
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Object::uplevel", NsfOUplevelMethodStub, 1, {
+{"::nsf::methods::object::uplevel", NsfOUplevelMethodStub, 1, {
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Object::upvar", NsfOUpvarMethodStub, 1, {
+{"::nsf::methods::object::upvar", NsfOUpvarMethodStub, 1, {
   {"args", 0, 0, ConvertToNothing}}
 },
-{"::nsf::cmd::Object::volatile", NsfOVolatileMethodStub, 0, {
+{"::nsf::methods::object::volatile", NsfOVolatileMethodStub, 0, {
   }
 },
-{"::nsf::cmd::Object::vwait", NsfOVwaitMethodStub, 1, {
+{"::nsf::methods::object::vwait", NsfOVwaitMethodStub, 1, {
   {"varname", 1, 0, ConvertToString}}
 },
 {"::nsf::methods::object::info::children", NsfObjInfoChildrenMethodStub, 2, {
Index: library/nx/nx.tcl
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- library/nx/nx.tcl	(.../nx.tcl)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -37,7 +37,7 @@
   #
   # provide the standard command set for ::nx::Object
   #
-  foreach cmd [info command ::nsf::cmd::Object::*] {
+  foreach cmd [info command ::nsf::methods::object::*] {
     set cmdName [namespace tail $cmd]
     if {$cmdName in [list "autoname" "exists" "filterguard" "instvar" "mixinguard" "require_namespace"]} continue
     ::nsf::alias Object $cmdName $cmd 
@@ -51,7 +51,7 @@
   #
   
   # provide the standard command set for Class
-  foreach cmd [info command ::nsf::cmd::Class::*] {
+  foreach cmd [info command ::nsf::methods::class::*] {
     set cmdName [namespace tail $cmd]
     if {$cmdName in [list "filterguard" "mixinguard"]} continue
     ::nsf::alias Class $cmdName $cmd 
@@ -205,7 +205,7 @@
 	}
       }
       if {$what in [list "filterguard" "mixinguard"]} {
-        return [::nsf::dispatch [::nsf::current object] ::nsf::cmd::Object::$what {*}$args]
+        return [::nsf::dispatch [::nsf::current object] ::nsf::methods::object::$what {*}$args]
       }
     }
     # define unknown handler for class
@@ -324,7 +324,7 @@
 	::nsf::require_method [::nsf::current object] [lindex $args 0] 0
       }
       namespace {
-	::nsf::dispatch [::nsf::current object] ::nsf::cmd::Object::require_namespace
+	::nsf::dispatch [::nsf::current object] ::nsf::methods::object::require_namespace
       }
     }
   }
@@ -1015,28 +1015,28 @@
     #
     ${os}::Object::slot::filter method guard {obj prop filter guard:optional} {
       if {[info exists guard]} {
-	::nsf::dispatch $obj ::nsf::cmd::Object::filterguard $filter $guard
+	::nsf::dispatch $obj ::nsf::methods::object::filterguard $filter $guard
       } else {
 	$obj info filter guard $filter 
       }
     }
     ${os}::Class::slot::filter method guard {obj prop filter guard:optional} {
       if {[info exists guard]} {
-	::nsf::dispatch $obj ::nsf::cmd::Class::filterguard $filter $guard
+	::nsf::dispatch $obj ::nsf::methods::class::filterguard $filter $guard
       } else {
 	$obj info filter guard $filter 
       }
     }
     ${os}::Object::slot::mixin method guard {obj prop filter guard:optional} {
       if {[info exists guard]} {
-	::nsf::dispatch $obj ::nsf::cmd::Object::mixinguard $filter $guard
+	::nsf::dispatch $obj ::nsf::methods::object::mixinguard $filter $guard
       } else {
 	$obj info mixin guard $filter 
       }
     }
     ${os}::Class::slot::mixin method guard {obj prop filter guard:optional} {
       if {[info exists guard]} {
-	::nsf::dispatch $obj ::nsf::cmd::Class::mixinguard $filter $guard
+	::nsf::dispatch $obj ::nsf::methods::class::mixinguard $filter $guard
       } else {
 	$obj info mixin guard $filter 
       }
@@ -1280,7 +1280,7 @@
     if {![info exists object]} {set object [::nsf::current object]}
     if {![::nsf::isobject $object]} {$class create $object}
     # reused in XOTcl, no "require" there, so use nsf primitiva
-    ::nsf::dispatch $object ::nsf::cmd::Object::require_namespace    
+    ::nsf::dispatch $object ::nsf::methods::object::require_namespace    
     if {$withnew} {
       set m [ScopedNew new -volatile \
 		 -container $object -withclass $class]
@@ -1376,7 +1376,7 @@
 	  ::nsf::relation $obj object-mixin [::nsf::relation $origin object-mixin]
             # reused in XOTcl, no "require" there, so use nsf primitiva
 	  if {[::nsf::dispatch $origin ::nsf::methods::object::info::hasnamespace]} {
-	    ::nsf::dispatch $obj ::nsf::cmd::Object::require_namespace
+	    ::nsf::dispatch $obj ::nsf::methods::object::require_namespace
 	  }
 	} else {
 	  namespace eval $dest {}
Index: library/tcl-cool/tcl-cool.tcl
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- library/tcl-cool/tcl-cool.tcl	(.../tcl-cool.tcl)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ library/tcl-cool/tcl-cool.tcl	(.../tcl-cool.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -104,7 +104,7 @@
   #   - "forward" is a method for delegating calls to different objects
   #   - "methods" is an introspection method for showing the methods of an object
   #
-  ::nsf::alias   object variable ::nsf::cmd::Object::instvar
+  ::nsf::alias   object variable ::nsf::methods::object::instvar
   ::nsf::forward object forward  ::nsf::forward %self -per-object
   ::nsf::alias   object methods  ::nsf::methods::object::info::lookupmethods
 
@@ -113,7 +113,7 @@
   # is created. First the object is allocated, then the constructor is called.
   #
   class method create {name args} {
-    set obj [::nsf::dispatch [self] ::nsf::cmd::Class::alloc $name]
+    set obj [::nsf::dispatch [self] ::nsf::methods::class::alloc $name]
     $obj init {*}$args
     return $obj
   }
Index: library/xotcl/library/xotcl2.tcl
===================================================================
diff -u -r42921ea037c4334cb6ecc565978330f9d8e902ec -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision 42921ea037c4334cb6ecc565978330f9d8e902ec)
+++ library/xotcl/library/xotcl2.tcl	(.../xotcl2.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -69,7 +69,7 @@
   # objects. It is the root object-class in the XOTcl 2 object system.
 
   # provide the standard command set for ::xotcl::Object
-  foreach cmd [info command ::nsf::cmd::Object::*] {
+  foreach cmd [info command ::nsf::methods::object::*] {
     set cmdName [namespace tail $cmd]
     if {$cmdName in [list "setter" "require_namespace"]} continue
     ::nsf::alias Object $cmdName $cmd
@@ -208,7 +208,7 @@
   }
 
   # provide the standard command set for ::xotcl::Class
-  foreach cmd [info command ::nsf::cmd::Class::*] {
+  foreach cmd [info command ::nsf::methods::class::*] {
     set cmdName [namespace tail $cmd]
     if {$cmdName in [list "setter"]} continue
     ::nsf::alias Class $cmdName $cmd
@@ -228,13 +228,13 @@
   ::nsf::alias Object parametercmd     ::nsf::classes::nx::Object::setter
   ::nsf::alias Class  instparametercmd ::nsf::classes::nx::Class::setter
 
-  ::nsf::alias Object filterguard      ::nsf::cmd::Object::filterguard
-  ::nsf::alias Class  instfilterguard  ::nsf::cmd::Class::filterguard
+  ::nsf::alias Object filterguard      ::nsf::methods::object::filterguard
+  ::nsf::alias Class  instfilterguard  ::nsf::methods::class::filterguard
 
-  ::nsf::alias Object mixinguard       ::nsf::cmd::Object::mixinguard
-  ::nsf::alias Class  instmixinguard   ::nsf::cmd::Class::mixinguard
+  ::nsf::alias Object mixinguard       ::nsf::methods::object::mixinguard
+  ::nsf::alias Class  instmixinguard   ::nsf::methods::class::mixinguard
 
-  ::nsf::alias Object requireNamespace ::nsf::cmd::Object::require_namespace
+  ::nsf::alias Object requireNamespace ::nsf::methods::object::require_namespace
 
   # define instproc and proc
   ::nsf::method Class instproc {
Index: tests/method-require.tcl
===================================================================
diff -u -r29ea21bd3f28ea7effaca6039e59a8a3499f8fd8 -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- tests/method-require.tcl	(.../method-require.tcl)	(revision 29ea21bd3f28ea7effaca6039e59a8a3499f8fd8)
+++ tests/method-require.tcl	(.../method-require.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -16,7 +16,7 @@
   nsf::provide_method lappend  {::nsf::alias  lappend -objscope ::lappend}
   nsf::provide_method set      {::nsf::alias  set -objscope ::set}
   nsf::provide_method tcl::set {::nsf::alias  set -objscope ::set}
-  nsf::provide_method exists   {::nsf::alias  exists ::nsf::cmd::Object::exists}
+  nsf::provide_method exists   {::nsf::alias  exists ::nsf::methods::object::exists}
   nsf::provide_method foo      {::nsf::method foo {x y} {return x=$x,y=$y}}
   nsf::provide_method x        {::nsf::mixin ::MIX} {
     # here could be as well a package require, etc.
Index: tests/object-system.tcl
===================================================================
diff -u -rbedb248602f8940383c0f4a10bb4f99b3a5f2c4f -re2f11549ef70518cca8c9c49b1d78f4383b00a87
--- tests/object-system.tcl	(.../object-system.tcl)	(revision bedb248602f8940383c0f4a10bb4f99b3a5f2c4f)
+++ tests/object-system.tcl	(.../object-system.tcl)	(revision e2f11549ef70518cca8c9c49b1d78f4383b00a87)
@@ -159,8 +159,8 @@
 ? {::nsf::relation ::class superclass} ::object
 
 # define non-standard methos to create/destroy objects and classes
-::nsf::alias ::class  + ::nsf::cmd::Class::create
-::nsf::alias ::object - ::nsf::cmd::Object::destroy
+::nsf::alias ::class  + ::nsf::methods::class::create
+::nsf::alias ::object - ::nsf::methods::object::destroy
 
 # create a class named C
 ::class + C