From: "Nation, Carey" <Carey.Nation@...>
Date: 2009-06-04T00:21:39+09:00
Subject: Re: Module methods

Pretty sure that you need to prefix the module methods with the module
name.  Yeah, I know.

Try:
module Good
   def Good.init_module
      @var = "good"
   end
....

And the in your "different file"

require 'good';
Good.init_module

Which isn't exactly what you want.  

<talking out of ear now>
I think that you have to prefix the method with the module name since
using it this way gets things added to main rather than to your own
class/instance.  It smells like include should make it so that you can
omit the Good. on the call, but it doesn't work for me.  Again, I think
it may be something to do with it being in main rather than in your own
class.  You're basically trying to make a mixin for main and I
suspect/know that the rules are somewhat different. 
</talking out of ear now>

Hope that this helps some...

-----Original Message-----
From: rps@salas.com [mailto:rps@salas.com] 
Sent: Wednesday, June 03, 2009 9:17 AM
To: ruby-talk ML
Subject: Module methods

I am trying to do this:

==== File: good.rb ====

module Good
   def init_module
      @var = "good"
   end

   def life_is_good
      puts "life is #{@var}"
   end

   [... more methods ...]
end

include X
init_module


======== and in a different file ========

include Good

life_is_good

- - - - - - - -

That works but messes up when I try to use ruby-debug with it. So I
changed it to try to call init_module in a different way: instead of
include X, init_module, I tried both of these, neither of which works:

X::init_module

X.init_module

Each of those calls lead to an 'undefined method 'init_module' for
X:Module.

I am getting myself confused with Module methods etc etc.

Any help would be gratefully accepted!!

Pito
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