GNU bug report logs -
#69270
29.1; transient.el: Using `transient-define-prefix' with a lambda command results in warning
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(Mon, 19 Feb 2024 11:38:02 GMT)
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Fadi Moukayed <smfadi <at> gmail.com>
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(Mon, 19 Feb 2024 11:38:02 GMT)
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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
Mentioned on the #emacs channel (libera).
As per https://www.gnu.org/software/emacs/manual/html_mono/transient.html#Suffix-Specifications
– it is mentioned that "COMMAND can also be a lambda expression."
However, evaluating the form (even on an Emacs instance started with "emacs -Q")
(transient-define-prefix my-test-transient () ["Heading" ("a"
"choice a" (lambda () (interactive)))])
Results in the following warning being printed on the *Messages* buffer:
Warning: (lambda nil \...) quoted with ' rather than with #'
Attempting to hashquote the lambda as in:
(transient-define-prefix my-test-transient () ["Heading" ("a"
"choice a" (lambda () (interactive)))])
... as suggested by some on #emacs results in an error when evaluating.
At this point, I am not sure if this is an error in documentation of
transient.el, or an error in the macro definition of the
`transient-define-prefix' macro itself, or if the warning is
superfluous and whether it should be ignored. As I'm unsure whether
this is a bug or not, I'm erring on the side of safety and reporting
it to bring it to attention.
In GNU Emacs 29.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.20,
cairo version 1.16.0) of 2023-12-10 built on lcy02-amd64-098
Repository revision: 28fb02492c2444c5976eb53fd6f9badfe54f4ea1
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12201001
System Description: Ubuntu 22.04.4 LTS
Configured using:
'configure --prefix=/snap/emacs/current/usr --with-x-toolkit=gtk3
--without-xaw3d --with-modules --with-cairo
--with-native-compilation=aot --with-xinput2 --with-tree-sitter
--with-json
'CFLAGS=-isystem/build/emacs/parts/emacs/install/usr/include
-isystem/build/emacs/parts/emacs/install/usr/include/x86_64-linux-gnu
-isystem/build/emacs/stage/usr/include -O2'
'CPPFLAGS=-isystem/build/emacs/parts/emacs/install/usr/include
-isystem/build/emacs/parts/emacs/install/usr/include/x86_64-linux-gnu
-isystem/build/emacs/stage/usr/include'
'LDFLAGS=-L/build/emacs/parts/emacs/install/lib
-L/build/emacs/parts/emacs/install/usr/lib
-L/build/emacs/parts/emacs/install/lib/x86_64-linux-gnu
-L/build/emacs/parts/emacs/install/usr/lib/x86_64-linux-gnu
-L/build/emacs/stage/usr/lib''
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3
THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER X11 XDBE XIM XINPUT2 XPM
GTK3 ZLIB
Important settings:
value of $LANG: de_DE.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: ELisp/d
Minor modes in effect:
electric-pair-mode: t
display-line-numbers-mode: t
erc-ring-mode: t
erc-notifications-mode: t
erc-netsplit-mode: t
erc-menu-mode: t
erc-list-mode: t
erc-irccontrols-mode: t
erc-keep-place-mode: t
erc-move-to-prompt-mode: t
erc-readonly-mode: t
erc-scrolltobottom-mode: t
erc-imenu-mode: t
erc-button-mode: t
erc-fill-mode: t
erc-stamp-mode: t
erc-bufbar-mode: t
erc-track-mode: t
erc-match-mode: t
erc-autojoin-mode: t
recentf-mode: t
pixel-scroll-precision-mode: t
minibuffer-depth-indicate-mode: t
global-whitespace-mode: t
global-goto-address-mode: t
goto-address-mode: t
global-auto-revert-mode: t
fido-vertical-mode: t
icomplete-vertical-mode: t
icomplete-mode: t
fido-mode: t
erc-networks-mode: t
desktop-save-mode: t
windmove-mode: t
tooltip-mode: t
global-eldoc-mode: t
eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
prettify-symbols-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
column-number-mode: t
line-number-mode: t
indent-tabs-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Information forwarded
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bug-gnu-emacs <at> gnu.org
:
bug#69270
; Package
emacs
.
(Mon, 19 Feb 2024 13:06:01 GMT)
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Message #8 received at 69270 <at> debbugs.gnu.org (full text, mbox):
> From: Fadi Moukayed <smfadi <at> gmail.com>
> Date: Mon, 19 Feb 2024 11:45:25 +0100
>
> Mentioned on the #emacs channel (libera).
>
> As per https://www.gnu.org/software/emacs/manual/html_mono/transient.html#Suffix-Specifications
> – it is mentioned that "COMMAND can also be a lambda expression."
>
> However, evaluating the form (even on an Emacs instance started with "emacs -Q")
>
> (transient-define-prefix my-test-transient () ["Heading" ("a"
> "choice a" (lambda () (interactive)))])
>
> Results in the following warning being printed on the *Messages* buffer:
>
> Warning: (lambda nil \...) quoted with ' rather than with #'
>
> Attempting to hashquote the lambda as in:
>
> (transient-define-prefix my-test-transient () ["Heading" ("a"
> "choice a" (lambda () (interactive)))])
>
> ... as suggested by some on #emacs results in an error when evaluating.
>
> At this point, I am not sure if this is an error in documentation of
> transient.el, or an error in the macro definition of the
> `transient-define-prefix' macro itself, or if the warning is
> superfluous and whether it should be ignored. As I'm unsure whether
> this is a bug or not, I'm erring on the side of safety and reporting
> it to bring it to attention.
Jonas, could you please look into this?
Thanks.
This bug report was last modified 74 days ago.
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