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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada OOP alternatives?
Newsgroups: comp.lang.ada
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Date: Wed, 16 Jul 2008 16:29:26 +0200
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Date: 2008-07-16T16:29:27+02:00
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On Wed, 16 Jul 2008 10:03:15 -0400, Robert A Duff wrote:

> You want the operations of a protected type to have visibility
> on the components of just that object (the one that was locked
> when entering the operation) -- not other objects that happen
> to be of the same type.

Yes, this shows why the idea of a hidden parameter (the protected object =
self) is bad. The object should have been passed as a plain parameter to
all operations of its type.

   protected type T is
      procedure Foo; -- More operation of T than others...
   end T;
   procedure Bar (X : in out T);

It is annoying that Foo and Bar being both operations of the type T have
different status.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de