From: James Edward Gray II <james@...>
Date: 2006-03-30T00:36:42+09:00
Subject: Re: Ruby Black Belt

On Mar 29, 2006, at 8:50 AM, ts wrote:

>>>>>> "J" == James Edward Gray <james@grayproductions.net> writes:
>
> J> Robert Dober was kind enough to point out that RDoc may have led me
> J> astray here.  You can call Kernel methods like class methods and  
> they
> J> do not show up in the list of instance_methods().  They are mixed
> J> into Object though, right?  Can someone clue me in here?
>
>  a global function is a Kernel module function : this mean that it's a
>  *private* method (this is why #instance_methods don't display it)  
> and a
>  public singleton method
>
> moulon% ruby -e 'module M def f() end; module_function :f end; p  
> M.instance_methods'
> []
> moulon%
>
> moulon% ruby -e 'module M def f() end; module_function :f end; p  
> M.private_instance_methods'
> ["f"]
> moulon%
>
> moulon% ruby -e 'module M def f() end; module_function :f end; p  
> M.singleton_methods'
> ["f"]
> moulon%

Thanks for the lesson Guy.  Insightful as always.

James Edward Gray II