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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: T'Interface attribute
Date: Wed, 2 Aug 2017 15:43:37 +0200
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Date: 2017-08-02T15:43:37+02:00
List-Id: <comp.lang.ada>

In order to reduce name space contamination I would propose attribute 
T'Interface which for any tagged type T would denote an interface type 
with all *new* primitive operations, e.g.

    type Derived is new Parent with ...;
    not overriding procedure Foo (X : Derived);

is equivalent to

    type Derived'Interface is [limited etc] interface;
    procedure Foo (X : Derived'Interface);

    type Derived is new Parent and Derived'Interface with ...;

T'Interface is visible at the declaration point of T. Its use is same as 
of T. E.g. prior to the freezing point of T is "premature".

Question. If T has any discriminants so does T'Interface.

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