From: Michael Klishin <redmine@...>
Date: 2011-07-09T21:55:01+09:00
Subject: [ruby-core:37921] [Ruby 1.9 - Feature #5005] Provide convenient access to original methods


Issue #5005 has been updated by Michael Klishin.


This approach with aliasing seems to be pretty popular because many people do not know that it is possible to define a module with #any_method and include it into a class (in your example, String) and call super in that module method. This feature will open a whole new wave of reinvented OOP wheels. Just use super from modules and design your classes.
----------------------------------------
Feature #5005: Provide convenient access to original methods
http://redmine.ruby-lang.org/issues/5005

Author: Lazaridis Ilias
Status: Open
Priority: Normal
Assignee: 
Category: core
Target version: 2.0


The languag allows a class to be "reopened", thus it's behaviour can be redefined:

class String
  def any_method
    #custom code
  end
end

the original method can be called, using this construct:

class String
  alias_method :original_any_method, :any_method
  def any_method(*args)
    #custom code
    original_any_method(*args)
    #custom code
  end
end

In order to make this more convenient, the following construct could be provided:

class String
  def any_method(*args)
    #custom code
    original # call the original String#any_method, passing *args (similar to "super")
    #custom code
  end
end

 "original" would behave similar to "super"

The term "original" can be replaced by any term which describes this concept better.






-- 
http://redmine.ruby-lang.org