From: "João Távora" <joaotavora@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: Attaching context info to an error
Date: Fri, 29 Dec 2023 17:39:42 +0000 [thread overview]
Message-ID: <CALDnm534X0ASfkshxnZmX42D0C_L2A2g_FvFpbqeU5xz6JRHcg@mail.gmail.com> (raw)
In-Reply-To: <CALDnm51h8P6grV7gPOu2kTXVMt1tfm5AinqHF9_xtmvcm5smBw@mail.gmail.com>
On Fri, Dec 29, 2023 at 5:29 PM João Távora <joaotavora@gmail.com> wrote:
>
> On Fri, Dec 29, 2023 at 4:54 PM Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> >
> > >> > What object exactly goes into the handler bind handlers?
> > >> The same (even `eq`) as the one passed to the `condition-case` handler.
> > > Would it matter if it weren't?
> >
> > I think we want to preserve the identity of an error as it
> > passes through its various handlers, yes.
> > That makes it possible to use `eq` hash tables and to mutate them.
>
> First, I think that's a bad idea for the reasons I explained
> at length. You should "remember" errors via restarts.
More precisely, even restarts are not necessary. One should
remember errors by not forgetting about them! I.e. use
handler-bind.
João
next prev parent reply other threads:[~2023-12-29 17:39 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-21 22:30 Attaching context info to an error Stefan Monnier
2023-12-22 6:50 ` Gerd Möllmann
2023-12-22 8:37 ` Gerd Möllmann
2023-12-22 15:58 ` Stefan Monnier
2023-12-28 6:57 ` Gerd Möllmann
2023-12-22 20:56 ` Jens Schmidt
2023-12-22 22:37 ` Stefan Monnier
2023-12-23 3:02 ` João Távora
2023-12-23 3:28 ` João Távora
2023-12-26 20:12 ` Stefan Monnier
2023-12-26 20:47 ` Stefan Monnier
2023-12-26 22:43 ` João Távora
2023-12-27 6:50 ` Gerd Möllmann
2023-12-27 10:29 ` João Távora
2023-12-27 10:35 ` Gerd Möllmann
2023-12-27 17:50 ` Stefan Monnier
2023-12-27 18:08 ` João Távora
2023-12-27 18:28 ` João Távora
2023-12-27 19:08 ` Stefan Monnier
2023-12-27 19:27 ` João Távora
2023-12-27 20:27 ` Stefan Monnier
2023-12-27 23:08 ` João Távora
2023-12-28 7:05 ` Stefan Monnier
2023-12-28 14:12 ` João Távora
2023-12-28 16:03 ` Stefan Monnier
2023-12-28 17:15 ` João Távora
2023-12-28 19:22 ` Stefan Monnier
2023-12-28 23:53 ` João Távora
2023-12-29 2:54 ` Stefan Monnier
2023-12-29 3:43 ` João Távora
2023-12-29 16:54 ` Stefan Monnier
2023-12-29 17:29 ` João Távora
2023-12-29 17:39 ` João Távora [this message]
2023-12-30 4:29 ` Stefan Monnier
2023-12-30 16:45 ` João Távora
2023-12-29 17:19 ` Alan Mackenzie
2023-12-29 17:24 ` João Távora
2023-12-29 17:43 ` Alan Mackenzie
2023-12-29 17:54 ` João Távora
2023-12-29 18:08 ` Alan Mackenzie
2023-12-29 18:45 ` João Távora
2023-12-29 18:35 ` Stefan Monnier
2023-12-29 18:48 ` João Távora
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