From: Yusuke ENDOH Date: 2009-09-01T03:51:35+09:00 Subject: [ruby-core:25230] Re: Module#prepend and Array#prepend Hi -- 2009/9/1 Yehuda Katz : > The existing in-ruby solutions only work if the original author takes pains > to supports extensions. In Rails 3, we do this. However, this is a large > burden on Ruby programmers, and we could provide an in-ruby solution > (prepend) that guarantees that any class can be extended. I understood very well. Thank you! I think that module has been a mechanism to add a concern to a class, not to modify a class itself. I understand that your proposal is to allow module to change a class. It seems to me to be a big and philosophical change. I wait matz's idea. -- Yusuke ENDOH