From: Tanaka Akira <akr@...17n.org>
Date: 2006-03-28T00:17:55+09:00
Subject: Re: PATCH: A subclassable Pathname

In article <92f5f81d0603262350k796fe48fp2224b9f2108ac507@mail.gmail.com>,
  "Evan Phoenix" <evanwebb@gmail.com> writes:

> A simply change (changing all references of "Pathname.new" to
> "self.class.new") allows for an easily subclassable Pathname. I doubt
> I need to explain why thats a good thing.

It's acceptable for the instance methods which doesn't take
a Pathname argument.

However I think it's not so simple for the methods which
take a Pathname argument: +, join, relative_path_from

Apart from that class methods should not use self.class:
Pathname.glob, Pathname.getwd
-- 
Tanaka Akira