From: "Mauricio Fernández" <batsman.geo@...>
Date: 2004-04-17T07:42:43+09:00
Subject: Re: Class instance method can't be defined in a module?

On Sat, Apr 17, 2004 at 07:32:07AM +0900, John Platte wrote:
> Trying to work some attr_accessor - style magic so I can refactor a 
> bunch of menial methods into a single declaration. Can't subclass, so 
> I'm trying to do it with a module.
> 
> In the code below, I expect both of the "puts" lines to work on the 
> "abc" string, but I can't figure out what I'm missing. Can anyone 
> enlighten me here?

batsman@tux-chan:/tmp$ cat fdgdf.rb
module FooModule
    def delegate(*methods)
        methods.each do |method|
            define_method(method){|*a| @new_receiver.send(method, *a) }
        end
    end
end

class TryIt
    extend FooModule
    delegate :intern
    delegate :capitalize
    def initialize(obj)
        @new_receiver = obj
    end
end

t = TryIt.new("abc")
puts t.intern
puts t.capitalize
batsman@tux-chan:/tmp$ ruby fdgdf.rb
abc
Abc

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