Elvuel

原文：http://snippets.dzone.com/posts/show/3620

class Object

 def self.__rules__
 # container for defined rules, each item is:
 # [class, event_name, method_name, alias_for_original_method, caller, comment]
 @@rules ||= []
 end

 def self.__create_rule_instead( method, comment = '', ＆block) # creates and returns new rule
 b_id = "%04x" % block.object_id
 old_method_n