Dear Members of comp.lang.ada,

We would like to inform you that we have made Renaissance-Ada, a toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

The Renaissance-Ada project builds on top of LibAdalang and includes the following functionality

* Dependency Graph Extractor that produces a graphml file for visualization and querying with e.g. yEd and Neo4J.
* Rejuvenation Library that allow analysis and manipulation of Ada code based on concrete patterns.
* Rewriters_Library that enables automatic rewriting of Ada code based on concrete patterns.
* Code Reviewer that automatically reviews Ada code based on a large list of rewrite rules.

If you have any question about this toolset don’t hesitate to contact me!

Yours sincerely,
Pierre van de Laar
Research Fellow
TNO-ESI

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On 27/01/2022 12:32, Pierre van de Laar wrote:

Dear Members of comp.lang.ada,

We would like to inform you that we have made Renaissance-Ada, a toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

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On Thursday, January 27, 2022 at 6:55:11 AM UTC-6, Luke A. Guest wrote:

On 27/01/2022 12:32, Pierre van de Laar wrote:

Dear Members of comp.lang.ada,

We would like to inform you that we have made Renaissance-Ada, a toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

I would suspect that “for legacy Ada software” might be a euphemistic way of saying: doesn't support modern Ada after either Ada83 or Ada95.

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On 28/01/2022 02:23, Andreas ZEURCHER wrote:

On Thursday, January 27, 2022 at 6:55:11 AM UTC-6, Luke A. Guest wrote:

On 27/01/2022 12:32, Pierre van de Laar wrote:

Dear Members of comp.lang.ada,

We would like to inform you that we have made Renaissance-Ada, a toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

I would suspect that “for legacy Ada software” might be a euphemistic way of saying: doesn't support modern Ada after either Ada83 or Ada95.

I kind of read is as, they made a toolset ages ago and have ported it to libadalang. But if it's new, why only support older Ada when you've
based it on a newer Ada, especially a newer ada lib?

It's weird.

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"Luke A. Guest" <laguest@archeia.com> writes:

On 27/01/2022 12:32, Pierre van de Laar wrote:

Dear Members of comp.lang.ada,
We would like to inform you that we have made Renaissance-Ada, a
toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

Looking at the link, it seems that it's software that has been just
growing, to the point at which it's becoming unmaintainable. I don't see anything that says Ada83 (though software with that sort of problem is
likely to have been around for a long time).

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fredag den 28. januar 2022 kl. 03.23.32 UTC+1 skrev Andreas ZEURCHER:

On Thursday, January 27, 2022 at 6:55:11 AM UTC-6, Luke A. Guest wrote:

What does "for legacy Ada software" mean?

I would suspect that “for legacy Ada software” might be a euphemistic way of saying: doesn't support modern Ada after either Ada83 or Ada95.

The video [1] from the README tells an up-to-date Ada success story.

[1] https://www.youtube.com/watch?v=EHrd-9wgALM

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Jesper Quorning <jesper.quorning@gmail.com> writes:

fredag den 28. januar 2022 kl. 03.23.32 UTC+1 skrev Andreas ZEURCHER:

On Thursday, January 27, 2022 at 6:55:11 AM UTC-6, Luke A. Guest wrote:

What does "for legacy Ada software" mean?

I would suspect that “for legacy Ada software” might be a
euphemistic way of saying: doesn't support modern Ada after either
Ada83 or Ada95.

The video [1] from the README tells an up-to-date Ada success story.

[1] https://www.youtube.com/watch?v=EHrd-9wgALM

Interesting!

I found myself using a case statement rather than an if so as to avoid a
'use type': U is an Interfaces.Unsigned_16,

case U is
when 1 => do one thing;
when others => do something else;
end case;

which you can see being problematic if the tooling converts this to an
if statement. Of course, without the 'use type' it won't compile.

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On 2022-01-28 13:31, Simon Wright wrote:

I found myself using a case statement rather than an if so as to avoid a
'use type': U is an Interfaces.Unsigned_16,

case U is
when 1 => do one thing;
when others => do something else;
end case;

These days you can use "in"

if U in 1 then

--
Jeff Carter
"Write clearly--don't sacrifice clarity for 'efficiency.'"
Elements of Programming Style
186

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Andreas ZEURCHER <ZUERCHER_Andreas@outlook.com> writes:

On Thursday, January 27, 2022 at 6:55:11 AM UTC-6, Luke A. Guest wrote:

On 27/01/2022 12:32, Pierre van de Laar wrote:

Dear Members of comp.lang.ada,

We would like to inform you that we have made Renaissance-Ada, a
toolset for legacy Ada software, open source:
https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

I would suspect that “for legacy Ada software” might be a euphemistic
way of saying: doesn't support modern Ada after either Ada83 or Ada95.

Except that it's based on libadalang, which supports Ada 2022, as well
as previous versions.

So I'm guess "legacy" refers to wanting/needing to adapt old Ada code to
a new compiler and/or environement, requirements, etc. Tools for
automatic rewrite would be handy for that.

They could easily leave out "legacy" - rewriting cann be useful for
recent code as well. But maybe their marketing department thinks there's
a niche that they can more easily sell to?

--
-- Stephe

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On 28.01.22 11:27, Simon Wright wrote:

https://github.com/TNO/Renaissance-Ada

What does "for legacy Ada software" mean?

Looking at the link, it seems that it's software that has been just
growing, to the point at which it's becoming unmaintainable. I don't see anything that says Ada83 (though software with that sort of problem is
likely to have been around for a long time).

The presentation seems to be openly addressing "legacy / technical debt". Referring to an large code base.

The README in, e.g., Dependency_Graph_Extractor lists some
contemporary Versions of compiler and tools.

Speculating, an ever more complex and changing language requires
efforts becoming correspondingly more complex and changing.
I understand that recent GNATs have dropped some support for less
recent editions of the Ada language.

Anyway, if Renaissance-Ada extracts information about programs, it adds clarity.
That seems helpful, as it saves time and money - if that's what you
want to achieve.

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G.B. schrieb am Samstag, 29. Januar 2022 um 10:26:36 UTC+1:

I understand that recent GNATs have dropped some support for less
recent editions of the Ada language.

Hu? Examples please.

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On 29.01.22 10:49, AdaMagica wrote:

G.B. schrieb am Samstag, 29. Januar 2022 um 10:26:36 UTC+1:

I understand that recent GNATs have dropped some support for less
recent editions of the Ada language.

Hu? Examples please.

gnat1: invalid switch: -gnat83

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"G.B." <bauhaus@notmyhomepage.invalid> writes:

On 29.01.22 10:49, AdaMagica wrote:

G.B. schrieb am Samstag, 29. Januar 2022 um 10:26:36 UTC+1:

I understand that recent GNATs have dropped some support for less
recent editions of the Ada language.

Hu? Examples please.

gnat1: invalid switch: -gnat83

This is still accepted in FSF GCC 11, 12. GNAT CE, on the other hand
... who knows why

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GNAT CE only supports the newest Ada generation. Quite annoying. This has been so since at least 2016.

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