From: 7stud -- <bbxx789_05ss@...>
Date: 2009-08-18T20:22:54+09:00
Subject: Re: Including a module in an included module.

Prince Nez wrote:
>     module M1; end
>     module M2; include M1; end
>     module M1; DOG = :woof; end
>     module M2; DOG; end
>     # => :woof
> 
> I can add to a module after it has been included. Neat.
> 
>     module M1; DOG = :woof; end
>     module M2; include M1; end
>     module M3; include M2; end
>     module M3; DOG; end
>     # => :woof
> 
> Including a module seems to give me any modules that it includes. Swish.
> 
>     module M2; end
>     module M3; include M2; end
>     module M1; DOG = :woof; end
>     module M2; include M1; end
>     module M3; DOG; end
>     # => NameError: uninitialized constant M3::DOG
> 
> So I assumed I'd be able to include a module in a module after it has
> been included, if you get my drift. It surprises me that this dog
> doesn't bark.

The results seem to speak for themselves: include only unwraps the 
namespace name from the names that were in the module at the time the 
module was included--subsequently adding constants to the previously 
included module does not present them unwrapped.


-- 
Posted via http://www.ruby-forum.com/.