From: William Morgan <wmorgan-ruby-talk@...>
Date: 2005-07-08T02:44:54+09:00
Subject: Re: Inheriting Array and slice() behaviour

Excerpts from Yukihiro Matsumoto's mail of  6 Jul 2005 (EDT):
> |Like the OP, I think it's weird and special-cased to have #slice
> |magically return something with the receiver's class. Especially since
> |the return value is going to be broken (not initialized) except in
> |trivial cases.
> 
> What if it can be initialized properly?

But I don't think it can be. To be initialized, #initialize must be
called, but #initialize can have required arguments. That's the essence
of my trouble with Array#slice: returned objects can't be initialized
properly.

I think the subclass should override #slice if they want this behavior,
and then they can explicitly call #new with the correct arguments.
They're probably going to have to do this for #+, anyways.

But I guess I'm the lone gunman by now, so I will stop pressing the
issue. Thanks for your comments!

-- 
William <wmorgan-ruby-talk@masanjin.net>