From: Lauri Alanko <la@iki.fi>
To: caml-list@inria.fr
Subject: Re: [Caml-list] ocaml, objects, classes, type ascription, virtual methods
Date: Mon, 23 May 2011 12:08:47 +0300 [thread overview]
Message-ID: <20110523090847.GB10168@melkinpaasi.cs.helsinki.fi> (raw)
In-Reply-To: <BANLkTimXLL9i1Jqm=J_+MhcHQD7e8EBt2w@mail.gmail.com>
On Mon, May 23, 2011 at 11:40:00AM +0300, Dmitry Grebeniuk wrote:
> I don't need to inherit the methods (the class' behaviour),
> I only need to be sure that types of methods are equal
> (more precisely, that types of methods of class ext
> can be constrained by types of methods of class base).
Are you sure you need a superclass at all? If you just want to make
sure that certain objects have certain methods, why not simply use
object types in signatures or type annotations?
type base = < m : unit >
class ext = object method m = () end
(new ext : base)
Lauri
next prev parent reply other threads:[~2011-05-23 9:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-23 7:50 Dmitry Grebeniuk
2011-05-23 8:29 ` Matthieu Dubuget
2011-05-23 8:40 ` Dmitry Grebeniuk
2011-05-23 9:08 ` Lauri Alanko [this message]
2011-05-23 9:21 ` Dmitry Grebeniuk
2011-05-23 10:11 ` Jacques Garrigue
2011-05-23 10:25 ` Dmitry Grebeniuk
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