From: Emiel van de Laar <emiel@...>
Date: 2008-10-23T20:18:02+09:00
Subject: [ruby-core:19464] Re: Should Method@instance_methods reveal	protected methods?

* Emiel van de Laar (emiel@rednode.nl) wrote:
> * Dave Thomas (dave@pragprog.com) wrote:
> > The RDoc says it just returns public methods, but
> > 
> > class C
> >    def pub; end
> >    def pri; end
> >    def pro; end
> > 
> >    public :pub
> >    protected :pro
> >    private :pri
> > end
> > 
> > p M.instance_methods(false)    #=> [:pub, :pro]
> > 
> > 
> > I know there's #public_instance_methods, so is the RDoc wrong?
> 
> Hi Dave,
> 
> Having played around with this some more I've found the following
> to be true.
> 
> p K.instance_methods.sort == (K.public_instance_methods + K.protected_instance_methods).sort
> p K.instance_methods.sort == (k.public_methods + k.protected_methods).sort
> p K.instance_methods == k.methods

I forgot about singleton methods...

p K.instance_methods.sort == (K.public_instance_methods + K.protected_instance_methods).sort
p K.instance_methods.sort == (k.public_methods + k.protected_methods - l.singleton_methods).sort
p K.instance_methods == k.methods - l.singleton_methods

> Where K is some class and k is an instance of K.
> 
> Please correct me if I'm wrong.

Cheers,

 - Emiel