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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: GNAT GPL is not shareware
Date: Fri, 9 Jan 2015 16:03:32 -0600
Organization: Jacob Sparre Andersen Research & Innovation
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Xref: news.eternal-september.org comp.lang.ada:24511
Date: 2015-01-09T16:03:32-06:00
List-Id: <comp.lang.ada>

"G.B." <bauhaus@futureapps.invalid> wrote in message 
news:m8om3v$2ga$1@dont-email.me...
> On 08.01.15 17:54, Dmitry A. Kazakov wrote:
>> On Thu, 08 Jan 2015 15:17:15 +0100, G.B. wrote:
>>
>>> The same setup could be used for a database of Ada identifiers
>>> and possible relations among them, since each of the identifiers,
>>> as the word "identifier" says, denotes identically one element of
>>> the universe of named things that an Ada source establishes.
>>
>> This is obviously wrong, since units can be instantiated, recursively 
>> used,
>> objects have scopes and life time.
>
> "Identifier", which denotes a source entity uniquely. It's
> about a database of things in the source text, not about
> things at run-time.

So in other words, it's unusuable for a debugger, which is an important part 
of an IDE. (That's a problem with ASIS, as well; one of the reasons that it 
is a better idea than useful thing.) And it probably would have problems 
with macro-expanded generics vs. code-shared generics (again, which ASIS has 
in spades) - either you duplicate the definitions, so you no longer have a 
1-to-1 relation of identifiers to source, or you don't, and you have 
multiple versions of the same thing. Rather a lose-lose situation.

                              Randy.


                                  Randy.