From: Stefano Crocco <stefano.crocco@...>
Date: 2008-01-28T04:33:22+09:00
Subject: Re: method_defined? doesn't see module methods?

Alle Sunday 27 January 2008, matt neuburg ha scritto:
> module M
>   def self.howdy
>     "hello"
>   end
> end
> p M.method_defined? :howdy #=> false
>
> What question should I ask in order to get "true"? Thx - m.

According to the ri documentation, method_defined? tells wether instances of 
the class, or of a class including the module, will respond to the given 
method. In other words :

Cls.method_defined?(:a_method) == true

means that

Cls.new.respond_to?(:a_method) == true 

To know whether the module has a module method, you can use respond_to? on the 
module:

M.respond_to?(:howdy)
=> true

I hope this helps

Stefano