1  module ActiveSupport
   2    if defined? ::BasicObject
   3      # A class with no predefined methods that behaves similarly to Builder's
   4      # BlankSlate. Used for proxy classes.
   5      class BasicObject < ::BasicObject
   6        undef_method :==
   7        undef_method :equal?
   8 
   9        # Let ActiveSupport::BasicObject at least raise exceptions.
  10        def raise(*args)
  11          ::Object.send(:raise, *args)
  12        end
  13      end
  14    else
  15      class BasicObject #:nodoc:
  16        instance_methods.each do |m|
  17          undef_method(m) if m.to_s !~ /(?:^__|^nil\?$|^send$|^object_id$)/
  18        end
  19      end
  20    end
  21  end