GNU bug report logs - #16357
insufficient print abbreviation in error messages

Previous Next

Full log

Message #14 received at 16357 <at> debbugs.gnu.org (full text, mbox):

From: Andy Wingo <wingo <at> pobox.com>
To: Zefram <zefram <at> fysh.org>
Cc: 16357 <at> debbugs.gnu.org, guile-devel <at> gnu.org
Subject: Re: bug#16357: insufficient print abbreviation in error messages
Date: Tue, 21 Jun 2016 17:10:13 +0200

On Tue 21 Jun 2016 14:38, Zefram <zefram <at> fysh.org> writes:

> Andy Wingo wrote:
>>Thoughts?
>
> How was this managed in Guile 1.8?

The printers and the backtrace handling was quite different, but it used
"print states".

> It seems that you need the truncated-print mechanism to be always
> available internally, but this doesn't require that it be always visible
> to the user.  You can still require the full libraries to be loaded for
> the user to get access.
>
> Lazy loading sounds like a bad idea.  Error handling is a bad place to
> attempt something that complex and failure-prone.

That's what we do for backtrace printing in 2.2, for what it's worth.
It's a tradeoff between memory size, good errors, maintainability,
startup time, safety, duplication... the global optimimum corresponds to
no per-axis optimimum :/

Andy

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.