|
! Copyright (C) 2004, 2005 Slava Pestov.
|
|
! See http://factor.sf.net/license.txt for BSD license.
|
|
IN: generic
|
|
USING: kernel words ;
|
|
|
|
! Null metaclass with no instances.
|
|
null { } "types" set-word-prop
|
|
null [ drop f ] "predicate" set-word-prop
|
|
null null define-class
|