From: Trans <transfire@...>
Date: 2008-08-25T02:24:24+09:00
Subject: RCR: instance_methods(ancestor)

= Problem

Currently Module#instance_methods (and company) take a single
argument, true or false, as to whether to include all ancestor
methods. I've written enough metacode to come across the need to limit
the search at a particular ancestor. This currently requires code
like:

      meths = []
      ancestors[0..ancestors.index(FooAncestor)].each do |anc|
        meths = meths | anc.instance_methods(false)
      end

It would be nice if we could simply say:

  instance_methods(FooAncestor)

= Solution

I leave the full solution to more capable C peoples. I imagine it
would not be too difficult however.

= Analysis

This change can be backward compatible. It also eliminates the dreaded
true|false argument, and can be applied to the entire family of
"methods" methods.

T.