From: Alex Baretta <alex@baretta.com>
To: Yamagata Yoriyuki <yoriyuki@mbg.ocn.ne.jp>, Ocaml <caml-list@inria.fr>
Subject: Re: [Caml-list] Delegation based OO
Date: Wed, 24 Mar 2004 16:00:43 +0100 [thread overview]
Message-ID: <4061A29B.7080504@baretta.com> (raw)
In-Reply-To: <20040324.231148.18590674.yoriyuki@mbg.ocn.ne.jp>
Yamagata Yoriyuki wrote:
>
>>Delegation is no relative of inheritance. Inheritance is a syntactic
>>property (essentially classes inherit code), whereas delegation is a
>>semantic property: once one method is delegated by a proxy object to an
>>executor object, the the visibility of the proxy is lost. The method is
>>executed as if it were invoked directly on the executor.
>
>
> There is a certain approach (object-based OO) which makes inheritance
> to be a relation between objects (and get rid of the concept of class
> altogether). In this approach, we can add, and modify mothods in
> objects in run time. I confuse this with Alex proposal.
"Object based object orientation" is simply horrible English.
"Delegation based object orientation" is both more expressive of what
really goes on behind the scenes and more appropriate from a linguistic
standpoint.
What you have in mind is JavaScript, a delegation based
object-functional language with dynamic typing. What Jacques and I are
discussing is a class-and-delegation based object-functional paradigm,
an extension to ocaml's present class based object-functional approach.
Alex
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next prev parent reply other threads:[~2004-03-24 15:00 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-22 10:18 Alex Baretta
2004-03-22 23:01 ` Yamagata Yoriyuki
2004-03-23 0:29 ` Kenneth Knowles
2004-03-23 23:43 ` Yamagata Yoriyuki
2004-03-24 0:45 ` Kenneth Knowles
2004-03-24 10:43 ` Alex Baretta
2004-03-24 14:11 ` Yamagata Yoriyuki
2004-03-24 15:00 ` Alex Baretta [this message]
2004-03-24 16:57 ` Kenneth Knowles
2004-03-23 1:14 ` Jacques Garrigue
2004-03-23 7:27 ` Alex Baretta
2004-03-23 9:01 ` Stefano Zacchiroli
2004-03-23 9:41 ` Alex Baretta
2004-03-23 9:44 ` Jacques Garrigue
2004-03-23 9:47 ` Stefano Zacchiroli
2004-03-23 8:56 ` Correnson Loïc
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