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From: "Luke A. Guest" <laguest@archeia.com>
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Subject: Re: Adacore joins with Ferrous Systems to support Rust
Date: Fri, 4 Feb 2022 10:28:33 +0000
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On 04/02/2022 03:20, Randy Brukardt wrote:

>> Just like we didn't touch generic packages until much later in the year,
>> generic subprograms, yeah, because u_d was required early on.
>>
>>> objecting to this, I think he was right (philosophically; I've no idea
>>> about the practicality of alternate approaches).
>>
>> How else would you do controlled types?
> 
> Ada 9x originally had a bunch of magic attributes (similar to streaming). It

Now I want to know what these magic attributes were! Were they specific 
to a version of OO? Or were they to enable finalization?