GNU bug report logs - #54031
29.0.50; *scratch* buffer defaults to dynamic scoping when initial-major-mode 'emacs-lisp-mode

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: No Wayman <iarchivedmywholelife <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.0.50; *scratch* buffer defaults to dynamic scoping when
 initial-major-mode 'emacs-lisp-mode
Date: Wed, 16 Feb 2022 17:13:33 -0500

With the following minimal init.el the initial *scratch* buffer 
does not have lexical binding enabled:

(setq initial-buffer t
     initial-major-mode 'emacs-lisp-mode)

Bug, or my misunderstanding?

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 
3.24.31, cairo version 1.17.4)
of 2022-02-16 built on nbook
Repository revision: 8737d79be8f82bb12ca12dc1a7de37a4d2875f39
Repository branch: master
System Description: Arch Linux

Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --mandir=/usr/share/man 
--with-gameuser=:games
--with-sound=alsa --with-modules --without-libotf 
--without-m17n-flt
--without-gconf --without-gsettings --with-native-compilation
--with-xinput2 --with-pgtk --without-xaw3d --with-sound=no
--without-gpm --without-compress-install
'--program-transform-name=s/\([ec]tags\)/\1.emacs/'
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fno-plt 
-fexceptions
-Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security
-fstack-clash-protection -fcf-protection'
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS HARFBUZZ JPEG JSON 
LCMS2
LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK 
PNG
RSVG SECCOMP SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP XIM 
GTK3 ZLIB
Important settings:
 value of $LANG: en_US.UTF-8
 locale-coding-system: utf-8-unix

Message #8 received at 54031 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: No Wayman <iarchivedmywholelife <at> gmail.com>
Cc: 54031 <at> debbugs.gnu.org
Subject: Re: bug#54031: 29.0.50; *scratch* buffer defaults to dynamic
 scoping when initial-major-mode 'emacs-lisp-mode
Date: Wed, 16 Feb 2022 23:30:39 +0100

No Wayman <iarchivedmywholelife <at> gmail.com> writes:

> With the following minimal init.el the initial *scratch* buffer does
> not have lexical binding enabled:
>
> (setq initial-buffer t

This variable doesn't seem to exist (in Emacs 29).

>      initial-major-mode 'emacs-lisp-mode)
>
> Bug, or my misunderstanding?

emacs-lisp-mode defaults to dynamic binding, so this sounds like it's
working as designed.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #11 received at 54031 <at> debbugs.gnu.org (full text, mbox):

From: No Wayman <iarchivedmywholelife <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 54031 <at> debbugs.gnu.org
Subject: Re: bug#54031: 29.0.50; *scratch* buffer defaults to dynamic
 scoping when initial-major-mode 'emacs-lisp-mode
Date: Wed, 16 Feb 2022 17:48:20 -0500

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> No Wayman <iarchivedmywholelife <at> gmail.com> writes:
>
>> With the following minimal init.el the initial *scratch* buffer 
>> does
>> not have lexical binding enabled:
>>
>> (setq initial-buffer t
>
> This variable doesn't seem to exist (in Emacs 29).
>

Apologies, a typo of initial-buffer-choice on my end.

>>      initial-major-mode 'emacs-lisp-mode)
>>
>> Bug, or my misunderstanding?
>
> emacs-lisp-mode defaults to dynamic binding, so this sounds like 
> it's
> working as designed.

I see now after a closer reading of the NEWS.27 entry:

> ** Lexical binding is now used by default when evaluating 
> interactive Elisp.
> [...] as well as in
> 'lisp-interaction-mode' and 'ielm-mode', used in the "*scratch*" 
> and
> "*ielm*" buffers.

Agreed that it sounds like it's working as designed.
Sorry for the noise and thanks for your help.

Message #14 received at 54031 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: No Wayman <iarchivedmywholelife <at> gmail.com>
Cc: 54031 <at> debbugs.gnu.org
Subject: Re: bug#54031: 29.0.50; *scratch* buffer defaults to dynamic
 scoping when initial-major-mode 'emacs-lisp-mode
Date: Thu, 17 Feb 2022 12:48:44 +0100

No Wayman <iarchivedmywholelife <at> gmail.com> writes:

> Agreed that it sounds like it's working as designed.
> Sorry for the noise and thanks for your help.

No problem; I'm closing this bug report, then.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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