From: William Morgan <wmorgan-ruby-talk@...>
Date: 2005-07-08T05:00:44+09:00
Subject: Re: Inheriting Array and slice() behaviour

Excerpts from Ara.T.Howard's mail of  7 Jul 2005 (EDT):
> On Fri, 8 Jul 2005, William Morgan wrote:
> >My problem with Array#slice is that the objects created will never
> >have #initialize called. Indeed, they never *can* have it called,
> >because who knows what arguments need to be supplied.
> 
> it's this simple:
 
Actually, it's even simpler---the author of Expression can simply
override #slice to do the right thing. The point is that the *author*
must do this explicitly. If Ruby tries to do this automatically, it will
return invalid objects.

In short, the current #slice behavior is a) wrong in non-trivial cases,
b) magic, and c) inconsistent with #+ and other methods.

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