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From: Xavier Leroy <Xavier.Leroy@inria.fr>
Message-Id: <199711121005.LAA29754@pauillac.inria.fr>
Subject: Re: local type within class
In-Reply-To: <3462F8B3.D1E@aar.alcatel-alsthom.fr> from Benoit Pasquereau at "Nov 7, 97 12:17:07 pm"
To: pasquere@aar.alcatel-alsthom.fr (Benoit Pasquereau)
Date: Wed, 12 Nov 1997 11:05:11 +0100 (MET)
Cc: caml-list@inria.fr
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> I would like to define "types" that are in the namescope of classes, is
> it possibles in ocaml ? (just like local types in C++)

Namespace control in Caml is performed by the module system.  Your
type belongs to a module (either the current compilation unit or some
sub-structure).  To hide this type, just add an interface to this module
that does not specify this type.

Objective Caml classes are only intended as a mechanism to group sets
of methods, attach them to objects, and perform inheritance.  Unlike
in C++ or Java, classes in Objective Caml do not double as a
general-purpose namespace control structure.

- Xavier Leroy