From: Stefan Lang <langstefan@...>
Date: 2005-10-22T04:16:16+09:00
Subject: Re: Module question - should be simple, but can't figure it out...

On Friday 21 October 2005 21:06, Glenn M. Lewis wrote:
[...]
> Now, I try and run this program, called 'testdummy.rb':
> -----------------------------------------------------
> #!/usr/bin/env ruby
> require 'dummy'
> include Dummy
> TryMe()
> def main
>    TryMe()
> end
> main()
[...]
> Now, I try and run this program, called 'testdummy2.rb':
> -----------------------------------------------------
> #!/usr/bin/env ruby
> require 'dummy'
> Dummy::TryMe()
> def main
>    Dummy::TryMe()
> end
> main()
> ----------------------------------------------------
[...]
> QUESTION:  How can I create module 'Dummy' so that it can be called
> either with the syntax in 'testdummy.rb' or 'testdummy2.rb' without
> modification?

Option 1)
  module Dummy
     def TryMe
       puts "yo"
     end
     # Add all instance methods of the Dummy module to
     # the Dummy module object (here referenced as "self").
     extend self
  end 

Option 2)
  module Dummy
     def TryMe
       puts "yo"
     end
     # give all method names (as symbols) as argument
     # to module_function
     module_function :TryMe, :SomeOtherMethod
  end

HTH,
  Stefan