extend.rb in facets-3.0.0

- old
+ new

@@ -1,11 +1,9 @@
 module Kernel
 
-  alias_method :_extend, :extend
+  extend_method = instance_method(:extend)
 
-  private :_extend
-
   # Extend an object with a module.
   #
   # If a block is given, it will be evaluated into an anonymous
   # module and used to extend the object.
   #
@@ -19,12 +17,12 @@
   #
   # NOTE: This is one of the few core overrides in Facets.
   #
   # @author Trans
   # @author Marco Otte-Witte (bug fix)
-  def extend(*mod, &blk)
-    _extend(*mod) unless mod.empty?
-    _extend Module.new(&blk) if blk
+  define_method :extend do |*mod, &blk|
+    extend_method.bind(self).call(*mod) unless mod.empty?
+    extend_method.bind(self).call(Module.new(&blk)) if blk
     self
   end
 
 end