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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Prologue and epilogue aspects
Date: Mon, 29 Jan 2018 17:08:44 -0600
Organization: JSA Research & Innovation
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Date: 2018-01-29T17:08:44-06:00
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You mean sort of like "universal_controlled"? As previously noted, that 
might work for streams (and maybe pools),but controlled usually carries 
components along as well, so an interface (which cannot have components) is 
a bad match.

                       Randy.

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:p4hh1n$1qao$1@gioia.aioe.org...
> On 2018-01-27 08:17, Randy Brukardt wrote:
>> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
>> news:p4g15r$1s60$1@gioia.aioe.org...
>> ...
>>>     type Controlled is abstract new <anonymous> with private;
>>
>> This unfortunately doesn't fix anything. An interface never can be hidden
>> (only in the private part), and deriving a concrete type from an 
>> interface
>> doesn't change that.
>
> But the interface is anonymous, it cannot be referenced in any way 
> anywhere. It is mentioned only to be inherited from by a named interface.
>
>         <anonymous>
>           /     \
>   Controlled   Controlled_Interface
>
> -- 
> Regards,
> Dmitry A. Kazakov
> http://www.dmitry-kazakov.de