bug#57883: compilation-get-file-structure mishandles buffers

[Stefan Kangas]

Stefan Kangas <stefankangas@gmail.com> writes:

> reopen 57883
> thanks
>
> JD Smith <jdtsmith@gmail.com> writes:
>
>> Thanks for the query.  This is still an issue in Emacs 29 with emacs -Q.
>
> Thanks, reopened.
>
>> Reproducer: The reproduction recipe was in the linked emacs-devel
>> <https://lists.gnu.org/archive/html/emacs-devel/2022-02/msg00496.html>
>> thread.  Here it is again (with Emacs 29 updates in [brackets]):
>
> I've tried editing your recipe down into something that's a little bit
> easier for me to work with.
>
> All of this is pasted into an emacs -Q "*scratch*" buffer:
>
> (progn
>   (require 'compile)
>   (defun my/filename-function () (list (get-buffer (match-string 1))))
>   (defvar my/compilation-error-regexp
>     `((,(rx line-start
>           "Buffer \"" (group (+ (not "\""))) "\", " ; 1: buffer name
>           "line" (+ space) (group (+ digit))      ; 2: line
>           (* nonl) ?\n)
>        my/filename-function
>        2
>        nil nil 1)))
>   (progn (compilation-setup)
>          (setq compilation-error-regexp-alist my/compilation-error-regexp)
>          (compilation-parse-errors (point-min) (point-max)))
>   (compilation-parse-errors (point-min) (point-max)))
>
> But this doesn't give me any error when evaluating it either Emacs 29.1
> or current master.  Did I miss something?  Perhaps there is some step
> missing in my edited recipe?

More information was requested, but none was given within 4 months, so
I'm closing this bug.

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