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bug#24618: 26.0.50; `condition-case' doesn't allow catching all signals
From: |
Philipp Stephani |
Subject: |
bug#24618: 26.0.50; `condition-case' doesn't allow catching all signals |
Date: |
Tue, 04 Oct 2016 18:42:27 +0200 |
Consider the following code:
(condition-case err
(signal 'does-not-exist '(1 2))
(error (print err)))
The signal is not caught by condition-case because it has no error
conditions. This makes it impossible to reliably catch all signals
(without abusing the debugger). I propose that an error condition of
't' in `condition-case' should be interpreted as 'all conditions'.
In GNU Emacs 26.0.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.10.8)
of 2016-10-04 built on unknown
Repository revision: e2913dc880b9843bf69cf885270551bafeb46120
Windowing system distributor 'The X.Org Foundation', version 11.0.11501000
System Description: Ubuntu 14.04 LTS
Recent messages:
mwheel-scroll: Beginning of buffer [7 times]
Mark set
Sending...
Mark set [2 times]
Sending via mail...
Setting ‘smtpmail-smtp-server’ temporarily since "emacs -q" would overwrite
customizations
Setting ‘smtpmail-smtp-service’ temporarily since "emacs -q" would overwrite
customizations
Sending email
Sending email done
Sending...done
Configured using:
'configure --with-modules --enable-checking
--enable-check-lisp-object-type'
Configured features:
XPM JPEG TIFF GIF PNG SOUND GSETTINGS NOTIFY GNUTLS FREETYPE XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(network-stream nsm starttls tls gnutls mailalias smtpmail auth-source
cl-seq eieio eieio-core cl-macs eieio-loaddefs qp cus-edit cus-start
cus-load wid-edit pp shadow sort mail-extr emacsbug message subr-x puny
seq byte-opt gv bytecomp byte-compile cl-extra help-mode cconv
cl-loaddefs pcase cl-lib dired dired-loaddefs format-spec rfc822 mml
easymenu mml-sec password-cache epa derived epg epg-config gnus-util
rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils time-date mule-util tooltip eldoc electric
uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win
term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list newcomment elisp-mode lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core term/tty-colors frame cl-generic cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese charscript case-table epa-hook
jka-cmpr-hook help simple abbrev obarray minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote inotify dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty make-network-process emacs)
Memory information:
((conses 16 126071 14602)
(symbols 48 22713 6)
(miscs 40 341 241)
(strings 32 23705 8690)
(string-bytes 1 748309)
(vectors 16 22599)
(vector-slots 8 1236864 203799)
(floats 8 222 372)
(intervals 56 534 27)
(buffers 976 15)
(heap 1024 59649 5444))
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Philipp Stephani <=