[phobos] Calling abort() on unhandled exception

[Leandro Lucarella]

Sean Kelly, el 30 de julio a las 07:42 me escribiste:
> On Jul 29, 2010, at 10:01 PM, Andrei Alexandrescu wrote:
> > 
> > I for one really enjoy stuff like:
> > 
> > void main(string[] args)
> > {
> >    enforce(args.length > 1, "Usage: prog arg");
> >    ...
> > }
> > 
> > Having a stack trace tacked there... not good. Exception messages
> > are meant to be seen by users. Stack traces are meant to be seen by
> > the programmer. The fact that we print both by default doesn't sit
> > well at all.
> 
> Fair enough.  Maybe they should only be displayed for Errors, not Exceptions?

No, it's not fair enough, that code is wrong, wrong, wrong. There is no
reason not to call exit(1) for handling that kind of errors.

If you *REALLY REALLY* want some kind of exception to be caught by main
and just print a nice message, make it explicit. Add a standard
exception, like UserErrorException, and catch only *that* exception, not
*ANY* exception. Then Andrei can be happy and write horrible code that
throws a UserErrorException instead of using exit().

-- 
Leandro Lucarella (AKA luca)                     http://llucax.com.ar/
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