From: Daniel Harple <dharple@...>
Date: 2006-06-13T11:53:58+09:00
Subject: Re: How to invoke a run method???

On Jun 13, 2006, at 4:37 AM, Eric Armstrong wrote:

> I construed that post to mean that this work:
>
> module Foo
>   class Main
>     def run
>       puts "Running"
>     end
>   end
> end
> Foo::Main.run() if __FILE__ == $0
>
> But the result was:
>   undefined method `run' for Foo::Main:Class


#run is an instance method. You could make it a class method:

module Foo
   class Main
     def self.run
       puts "Running"
     end
   end
end
Foo::Main.run if __FILE__ == $PROGRAM_NAME

Or instigate an object of class Foo::Main:
Foo::Main.new.run if __FILE__ == $PROGRAM_NAME

-- Daniel