From: Michael Hollins <mick@...>
Date: 2007-06-29T22:05:10+09:00
Subject: Re: Accessing functions in a module without 'include'

Ronald Fischer wrote:
> Usually I work with modules like this:
> 
> # Defining a module in one file
>   module M
>     def f(x)
>       ....
>     end
>   end
> 
> # Using the module in another file
>   require 'M'
>   include M
>   f(45)
> 
> Sometimes I would find it more convenient to *not* inject
> the module's namespace into the user's namespace, i.e. to
> do it without the include statement. I thought it would 
> be easy to qualify the foreign function with the module
> name:
> 
> # Using the module in another file
> # (this does not work)
>   require 'M'
>   M::f(45)  # Error: undefined method 'f'
> 
> Maybe I'm thinking to Perlish here. Can it be done what I want
> to achieve, and how?

Not sure if it's what you want, but if you define M as follows it works:

   module M
     def self.f(x)
       ....
     end
   end

cheers,
mick