Re: isa
Re: isa
- Subject: Re: isa
- From: Ondra Cada <email@hidden>
- Date: Mon, 3 Jun 2002 13:36:41 +0200
On Monday, June 3, 2002, at 04:23 , Aram Greenman wrote:
the possibility that someone (possibly yourself) might subclass your
class without .... reading your comments
Sorry, but this is so pathological a case that the aforementioned problem
of uninitialized data is the very smallest of all potential havocs, like
- not implementing the designed initializer;
- overriding some method by a non-compatible way (like, returning nil when
it happens to be forbidden);
- not implementing some mandatory accessor, which might result in improper
sharing of variables;
- not noticing the class is a cluster trying to subclass it the normal way;
- and many more...
If you're going to subclass anything, well, go check docs first.
---
Ondra Cada
OCSoftware: email@hidden
http://www.ocs.cz
private email@hidden
http://www.ocs.cz/oc
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| | >Re: isa (From: Aram Greenman <email@hidden>) |