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Date: Sat, 29 Oct 2011 17:32:48 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: Ada 'hello world' for Android; success!
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Date: 2011-10-29T17:32:49+02:00
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On 29.10.11 15:37, Stephen Leake wrote:
> Anatoly Chernyshev<achernyshev@gmail.com>  writes:
>
>> Looks like a Pyrrhic victory to me. All elegance of Ada is suddenly
>> dissipated.
>
> I gather you feel that Android is inelegant in some way; can you be more
> specific?

The example is a little non-Ada, IMHO. I don't know Anatoly's reasons,
but to me the example has an air of "Fortran in any language",
except that one has to replace Fortran with pointers or
Java-with-covers-removed, viz. explicit access A.B.C.Typ all over
the place.

FWIW, the programs I have once written using SofCheck's version
of Ada on JVMs looked and felt more like Ada and a less
like explicit anonymous pointer to A.B.C.Typ everywhere.
Note that the thorny appearance of the HelloWorld example
isn't present in Java, which allows O-O without forcing
the programmers to write pointers, pointers, pointers.

BTW, is it possible in the Android model to have an
equivalent of Ada's

    procedure Op (This : access constant Typ);

where a programmer can state the intent of read-only
access?


Is the traditional O-O model of Ada impossible to support
in a compiler for Android devices or is it just that no one
is paying for such a compiler? So that the best we can do is
juggle the pointers that the other languages can hide?