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From: Jon Harrop <jon@ffconsultancy.com>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] C++/C# inheritance is bad?
Date: Sat, 17 Jan 2009 13:27:18 +0000	[thread overview]
Message-ID: <200901171327.19141.jon@ffconsultancy.com> (raw)
In-Reply-To: <FCB84B14-903B-4DC9-949E-F4190C6D4873@osu.edu>

On Friday 16 January 2009 15:18:50 Kuba Ober wrote:
> So, when correctly applied, what's so disturbing about inheritance?

Inheritance is disturbing because, in general, it cannot be applied correctly. 
That is why there are so many workarounds, many of which do not even exist in 
C++ like final methods, sealed classes, multimethods, extractors and so on. 
OO is not good in all circumstances and other tools can be preferable. IME, 
OO is only very rarely the best solution and it is only chosen so often 
because it is typically the only solution available (e.g. in C++ or Java).

> You inherit only where it makes sense, and if it makes sense then you don't
> care about which particular method is called: it's supposed to be safe.

Safety is quite different from easy of use, of course.

-- 
Dr Jon Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/?e


  parent reply	other threads:[~2009-01-17 13:23 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-16 15:18 Kuba Ober
2009-01-16 15:58 ` [Caml-list] " Richard Jones
2009-01-16 16:28   ` On the benefits of OO, Was: " Jan Kybic
2009-01-17 12:40     ` Oliver Bandel
2009-01-16 18:27 ` Raoul Duke
2009-01-16 21:42   ` Kuba Ober
2009-01-17  3:14     ` Sashan Govender
2009-01-17 14:07       ` Kuba Ober
2009-01-18  6:24         ` Stefano Zacchiroli
2009-01-17 13:27 ` Jon Harrop [this message]
2009-01-17 14:35   ` Kuba Ober
2009-01-17 16:59     ` Jon Harrop
2009-01-17 21:22       ` Kuba Ober
2009-01-17 22:17         ` Jon Harrop
2009-01-17 23:29           ` David Teller
2009-01-17 23:49             ` Jon Harrop
2009-01-19 16:22       ` Visitor in OCaml [was Re: [Caml-list] C++/C# inheritance is bad?] Yoann Padioleau
2009-01-19 16:41         ` blue storm
2009-01-19 17:49           ` Richard Jones
2009-01-19 17:52           ` Visitor in OCaml Christophe TROESTLER
2009-01-21 20:09           ` Yoann Padioleau
2009-01-22  4:03             ` [Caml-list] " Yaron Minsky

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