Re: [PATCH] change dired--find-possibly-alternative-file behaviour.

[Felix]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Felix <felix.dick@web.de>
>> Date: Sat, 25 Feb 2023 20:43:57 +0100
>>
>> diff --git a/lisp/dired.el b/lisp/dired.el
>> index 76499d0f520..620508bef4f 100644
>> --- a/lisp/dired.el
>> +++ b/lisp/dired.el
>> @@ -2728,7 +2728,8 @@ dired-find-file
>>  (defun dired--find-possibly-alternative-file (file)
>>    "Find FILE, but respect `dired-kill-when-opening-new-dired-buffer'."
>>    (if (and dired-kill-when-opening-new-dired-buffer
>> -           (file-directory-p file))
>> +           (file-directory-p file)
>> +           (= (length (get-buffer-window-list)) 1))
>>        (progn
>>          (set-buffer-modified-p nil)
>>          (dired--find-file #'find-alternate-file file))
>
> What if get-buffer-window-list returns nil?

The optional argument BUFFER-OR-NAME of get-buffer-window-list defaults
to the current buffer, shouldn't that garantee that it never returns
nil?