From: "ko1 (Koichi Sasada)" <redmine@...>
Date: 2012-06-26T04:00:17+09:00
Subject: [ruby-core:45840] [ruby-trunk - Feature #1102] Prepend Module


Issue #1102 has been updated by ko1 (Koichi Sasada).

Assignee changed from ko1 (Koichi Sasada) to nobu (Nobuyoshi Nakada)

Nobu will commit it.
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Feature #1102: Prepend Module
https://bugs.ruby-lang.org/issues/1102#change-27418

Author: trans (Thomas Sawyer)
Status: Feedback
Priority: Normal
Assignee: nobu (Nobuyoshi Nakada)
Category: 
Target version: 2.0.0


=begin
 Currently when a module is included into a classes, it is appended to the class hierarchy (ie. the method lookup order). This of course makes sense, but there are times when it would be useful to *prepend* the module. For example:
 
   class C
     def x; "x"; end
   end
 
   module M
     def x; '[' + super + ']'; end
   end
 
   class C
     prepend M
   end
 
   C.new.x  #=> "[x]"
 
 One big advantage of this is being able to override methods in a safer way, rather than using alias or tricks like alias_method_chain.
=end



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