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Date: Tue, 2 Apr 2019 08:53:08 -0700 (PDT)
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Subject: Re: Intervention needed?
From: Anh Vo <anhvofrcaus@gmail.com>
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Xref: reader01.eternal-september.org comp.lang.ada:56047
Date: 2019-04-02T08:53:08-07:00
List-Id: <comp.lang.ada>

On Tuesday, April 2, 2019 at 1:30:25 AM UTC-7, Dmitry A. Kazakov wrote:
> On 2019-04-01 23:42, Randy Brukardt wrote:
> > "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message
> > news:q7tfi3$1483$1@gioia.aioe.org...
> >> On 2019-04-01 17:13, Optikos wrote:
> >>
> 
> > For Janus/Ada, I'm working toward having (optional) warnings for the raise
> > of any exception; that, combined with warnings-as-error mode can give the
> > effect of preventing any exceptions other than ones explicitly expected.
> > It's pretty much all that can be done within Ada as it stands. But that is
> > not as good as an exception contract (especially as exceptions that you want
> > to raise become a pain).
> 
> Right, and unanticipated exceptions is a major contributor of bugs in 
> Ada. It is not so that exceptions cause bugs, rather bugs manifest 
> themselves as exceptions. If one could contract them most of the bugs 
> will not pass through the compiler.

Then, all bugs will be caught after they manifest themselves as exceptions. This is a brilliant idea. As the result, debugger is needed much less in the future.

Anh Vo