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From: Victor Porton <porton@narod.ru>
Subject: Re: Type invariants and private extensions?
Date: Tue, 12 Sep 2017 00:27:52 +0300
Date: 2017-09-12T00:27:52+03:00	[thread overview]
Message-ID: <op6v4m$tmm$1@gioia.aioe.org> (raw)
In-Reply-To: 7df81b3c-1fde-4395-8b9b-1a945820a7f7@googlegroups.com

Egil H H wrote:

> On Monday, September 11, 2017 at 10:48:46 PM UTC+2, Victor Porton wrote:
>> > The Invariant will then be inherited by all derived types
>> 
>> It is not what I want. I want different invariants for different derived
>> types.
>> 
> 
> You can add new invariants in addition to the ones inherited

I cannot: the compiler gives an error:

package P is

  type T is tagged private;

private

  type T is tagged null record;

end P;

with P; use P;

package P1 is

  type T1 is new T with null record
    with Type_Invariant => True;

end P1;


$ gnatgcc -gnatc -c p1.ads 
p1.ads:6:10: aspect "Type_Invariant" only allowed for private type or 
corresponding full view

-- 
Victor Porton - http://portonvictor.org

  reply	other threads:[~2017-09-11 21:27 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-11 19:51 Type invariants and private extensions? Victor Porton
2017-09-11 20:00 ` Egil H H
2017-09-11 20:48   ` Victor Porton
2017-09-11 21:19     ` Egil H H
2017-09-11 21:27       ` Victor Porton [this message]
2017-09-11 21:49         ` Egil H H
2017-09-11 22:00           ` Victor Porton
2017-09-11 22:06             ` Egil H H
2017-09-12  7:30             ` Dmitry A. Kazakov
2017-09-11 22:00         ` Jere
2017-09-11 22:02           ` Victor Porton
2017-09-12 18:26             ` Jeffrey R. Carter
2017-09-12 18:54               ` Victor Porton
2017-09-12 19:56                 ` Jeffrey R. Carter
2017-09-12 20:08                   ` Victor Porton
2017-09-12 22:34                     ` Shark8
2017-09-12 22:59                       ` Victor Porton
2017-09-13  4:21                         ` Jere
2017-09-13  4:28                           ` Jere
2017-09-13  4:34                             ` Jere
2017-09-14 13:52                           ` Victor Porton
2017-09-15  0:48                             ` Jere
2017-09-16 14:22                               ` Victor Porton
2017-09-14  7:28                         ` Shark8
2017-09-14 13:56                           ` Victor Porton
2017-09-14 13:58                             ` Victor Porton
2017-09-11 22:48         ` Shark8
2017-10-02 23:16         ` Randy Brukardt
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