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Date: Fri, 1 May 2020 00:31:15 -0700 (PDT)
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Subject: Re: Script-like jobs in Ada (ideas for HAC)
From: gautier_niouzes@hotmail.com
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Xref: reader01.eternal-september.org comp.lang.ada:58536
Date: 2020-05-01T00:31:15-07:00
List-Id: <comp.lang.ada>

On Thursday, April 30, 2020 at 10:44:22 AM UTC+2, Dmitry A. Kazakov wrote:

> 1. Where are the modules? It should be possible to write a module for=20
> the script e.g. a package that has functions and procedures, which call=
=20
> to Ada implementations. I.e. calling Ada from the script.

On the to-do list :-)

> 2. What about exceptions handling, the ones propagating out of the=20
> script into the Ada caller?

Same, but this is a lower-hanging fruit: the VM has error states that could=
 be grouped into an exception_raised state, which would trigger the expecte=
d behaviour (with an exception identity and message). If the exception is n=
ot handled from the VM, the VM interpreter would raise Unhandled_HAC_Except=
ion with a message.

> 3. Aborting the script. Ideally the Interpret_on_Current_IO  you=20
> mentioned must be abortable per some event set via protected object, for=
=20
> example. E.g. from another task provided Interpret_on_Current_IO runs on=
=20
> the caller's context. The interpreter will look for the event=20
> periodically and propagate exception Canceled_Error if the event is set.

I add this to the to-do list right now, thanks!