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bug#44943: 28.0.50; defvar may return INITVALUE and overwrite symbol's v
From: |
Lars Ingebrigtsen |
Subject: |
bug#44943: 28.0.50; defvar may return INITVALUE and overwrite symbol's value |
Date: |
Sun, 29 Nov 2020 12:00:49 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Kazuhiro Ito <kzhr@d1.dion.ne.jp> writes:
> When evaluate below codes, I get unexpected result.
>
> (defvar test 1)
>
> -> test
>
> It is expected.
>
> (defvar test 2)
>
> -> 2
>
> It should return 'test'.
>
> (symbol-value 'test)
>
> -> 2
>
> It should return 1.
When you say "evaluate", what do you mean? Doing `C-x C-e' after the
form? If it's the latter, then the doc string explains what's
happening (and this is new behaviour in Emacs 28):
----
C-x C-e runs the command eval-last-sexp (found in global-map), which
is an interactive compiled Lisp function in ‘elisp-mode.el’.
It is bound to C-x C-e.
(eval-last-sexp EVAL-LAST-SEXP-ARG-INTERNAL)
Probably introduced at or before Emacs version 24.4.
Evaluate sexp before point; print value in the echo area.
Interactively, with a non ‘-’ prefix argument, print output into
current buffer.
This commands handles ‘defvar’, ‘defcustom’ and ‘defface’ the
same way that ‘eval-defun’ does. See the doc string of that
function for details.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no