From: Berke Durak <berke.durak@exalead.com>
To: Dirk Thierbach <dthierbach@gmx.de>, Caml-list List <caml-list@inria.fr>
Subject: Re: [Caml-list] Objects, dynamic cast, Obj.magic abuse and dragons
Date: Tue, 26 Feb 2008 17:25:05 +0100 [thread overview]
Message-ID: <47C43D61.7070905@exalead.com> (raw)
In-Reply-To: <20080226150711.GB6521@feanor>
Dirk Thierbach wrote :
> I think I wouldn't use objects at all in this situation. You're trying
> to model the location-tree of "physical" things. A tree must be uniform
> in its contents, but you want to put different things into it. That
> means you must use an algebraic type, or variants. I'd probably either
> use a zipper, or connect the tree nodes with "refs" for the non-pure
> version.
You are preaching to the choir. I'm not Gerd Stolpmann and I don't use
objects very much because every time I try I get seven-page-long errors.
However it seems that objects could be actually useful in situations
where you have a hierarchy of objects with behaviours, such as a graphical
user interface made of widgets, or, say, a text adventure.
--
Berke DURAK
next prev parent reply other threads:[~2008-02-26 16:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-26 11:35 Berke Durak
2008-02-26 12:14 ` [Caml-list] " Richard Jones
2008-02-26 14:28 ` Berke Durak
2008-02-26 14:48 ` Richard Jones
2008-02-26 14:59 ` Berke Durak
2008-02-27 13:26 ` Tiphaine.Turpin
2008-02-29 10:36 ` Berke Durak
2008-02-29 12:23 ` Tiphaine.Turpin
2008-02-26 12:48 ` ketti
2008-02-26 13:10 ` Berke Durak
2008-02-26 15:07 ` Dirk Thierbach
2008-02-26 16:25 ` Berke Durak [this message]
2008-02-27 7:37 ` Dirk Thierbach
2008-02-27 10:26 ` Berke Durak
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