From: achrist at easystreet.com (Al Christians)
Date: Wed, 28 Apr 1999 19:19:57 -0700
Subject: Python IS slow ! [was] Re: Python too slow for real world
References: <613145F79272D211914B0020AFF6401914DAD8@gandalf.digicool.com> 	<p5g15lmb35.fsf@bidra241.bbn.hp.com> <slrn7ieipq.8uk.wtanksle@dolphin.openprojects.net> <372769B0.3CE8C0F3@prescod.net> <slrn7if4d4.9lh.wtanksle@dolphin.openprojects.net>
Message-ID: <3727C1CD.83078225@easystreet.com>
X-UID: 432                                                  

> 
> >Actually, isn't Eiffel's type system famous for being full of holes?
> 
> I'm familiar with the covariance/contravariance argument, but I've never
> before heard anyone say anything about Eiffel being full of holes.  What
> problems have you heard of?
> 

I think it's called changing availability by type, or some such.  It is
possible to delete a feature in a descendant class, leaving a hole in
polymorphic calls through the base class.  

Al




