descendents.rb in facets-2.8.1

- old
+ new

@@ -1,34 +2 @@
-class Class
-
-  # List all descedents of this class.
-  #
-  #   class X ; end
-  #   class A < X; end
-  #   class B < X; end
-  #   X.descendents  #=> [A,B]
-  #
-  # NOTE: This is a intesive operation. Do not
-  # expect it to be super fast.
-  def descendents
-    subclass = []
-    ObjectSpace.each_object( Class ) do |c|
-      if c.ancestors.include?( self ) and self != c
-        subclass << c
-      end
-    end
-    return subclass
-  end
-
-  unless defined?(::ActiveSupport)
-
-    # Obvious alias for descendents.
-    #
-    # NOTE: ActiveSupport returns string names rather
-    # then actual classes, so this is excluded
-    # if ActiveSupport has already been loaded.
-    alias_method :subclasses, :descendents
-
-  end
-
-end
-
+require 'facets/class/descendants'