From: Simen <toalett@...>
Date: 2006-05-03T03:33:18+09:00
Subject: Re: Mixin Syntax for Newbies

Simen wrote:
> Nathan Olberding wrote:
>> Simen wrote:
>>> In the above code, @one is actually an instance variable of module One:
>>> 
>>>   One.instance_variable_get "@one"
>>>   # => "One!"
>> 
>> Okay, that makes sense. In that case, is it possible to have instance 
>> variables for classes defined in modules which they mix in?
> 
> If you make it a method, you can call it from initialize:
> 
>   module One
>     def one; @one = "One!"; end
>   end
>   class Two
>     def initialize
>       one
>       puts @one
>     end
>   end
>   # Outputs "One!"
>   two = Two.new

Whoops, you need to include One first:

  class Two
    include One
    ...
  end

( I gotta stop using the ruby-forum gateway. It's so easy it makes me 
sloppy ).

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