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From: Stephen Leake <stephen_leake@stephe-leake.org>
Newsgroups: comp.lang.ada
Subject: Re: Custom Storage Pool questions
Date: Fri, 15 Oct 2021 01:08:54 -0700
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"Randy Brukardt" <randy@rrsoftware.com> writes:

>>
>> That is OK, but you still have to expand dispatching tables upon loading 
>> the library and shrink them upon unloading (though the latter is not 
>> supported, I guess).
>
> ??? The dispatching tables are defined statically by the compiler, and never 
> change. 

It would be nice if different variants of a dynamically loaded library
could introduce different derived types; that would support a "plugin"
model nicely.

For example, suppose an editor defines a library interface for computing
indent for various languages. Then one variant could provide Ada,
another Pascal, etc. Each could be a derived type.

I think you are saying this is simply not possible with Ada tagged types.

-- 
-- Stephe