From: Arthur Miller <arthur.miller@live.com>
To: help-gnu-emacs@gnu.org
Subject: Error does not throw to debugger in 'when' block
Date: Thu, 12 Jan 2023 07:51:01 +0100 [thread overview]
Message-ID: <AM9PR09MB49772A185234D2F00C9D3D4196FD9@AM9PR09MB4977.eurprd09.prod.outlook.com> (raw)
When running this little code, I have observed that 'error' does not end in
debugger:
(defun new-patch (&optional patch-name)
(interactive "sPatch name: ")
(let ((path (expand-file-name patch-name)))
(message "PATH: %s" path)
(when (file-exists-p path)
(error "A worktree with this name already exists"))))
If I run this code, I see it correctly executes error, but it does not open
debugger. If I place cursor after the error form, debugger is
opened. Value of debug-on-error is 't.
This is output in *Messages* buffer for 'Emacs -Q':
PATH: /home/arthur/repos/emsrc/28.2
progn: A worktree with this name already exists
Mark set [2 times]
Just curious, is this intended new behaviour for 'error' or a bug?
next reply other threads:[~2023-01-12 6:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 6:51 Arthur Miller [this message]
2023-01-12 8:28 ` Error does not throw to debugger in 'when' block Eli Zaretskii
2023-01-12 9:08 ` Arthur Miller
2023-01-12 11:26 ` Michael Heerdegen
2023-01-12 19:18 ` Arthur Miller
2023-01-12 21:15 ` Michael Heerdegen
2023-01-12 22:49 ` Arthur Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AM9PR09MB49772A185234D2F00C9D3D4196FD9@AM9PR09MB4977.eurprd09.prod.outlook.com \
--to=arthur.miller@live.com \
--cc=help-gnu-emacs@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).