From: Trans <transfire@...>
Date: 2006-10-03T22:29:03+09:00
Subject: Re: Why can't I get on Top?


MonkeeSage wrote:
> Hi Trans,
>
> How about a workaround for now? Something like:
>
> class << self
>   def include(mod)
>     self.extend(mod)
>     if in_toplevel?
>       p 'Do NOT use me from toplevel'
>     end
>   end
> end
>
> module NoTopLevel
>   def in_toplevel?
>     self.to_s == 'main'
>   end
> end
>
> include NoTopLevel

Well, let me show you what I'm actually doing:

  module Taskable
    def self.included( base )
      if base.toplevel?
        require 'main_as_module.rb'
      end
    end
  end

main_as_module.rb is actually a bit of code that will add every module
method there is to toplevel (ie. main). So you see I'm actually trying
to selectively mitigate the issue were talking about. I could just
require this lib no matter what and be done with it, but I thought it
would be better if I only included it if it is needed --no sense in
loading code that's not used. But it looks like I don't have much
choice. However, I did manage this work-around:

  module Taskable
    def self.included( base )
      if base == Object
        require 'main_as_module.rb'
      end
    end
  end

That catches it, although it also catches when Taskable is included in
Object too. But that's only one exception that won't cause any harm, so
it's an accecptable work around.

T.