GNU bug report logs - #61579
master branch: Byte compilation: Warning messages inside eval-and-compile lose their positions.

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

From: Alan Mackenzie <acm <at> muc.de>
To: bug-gnu-emacs <at> gnu.org
Subject: master branch: Byte compilation: Warning messages inside
 eval-and-compile lose their positions.
Date: Fri, 17 Feb 2023 17:08:56 +0000

Hello, Emacs.

In buffer *scratch*, enter the following:

(eval-and-compile
  (defvar foo "foo")
  (make-variable-buffer-local 'foo))

..  With point inside that form, do M-x compile-defun.  This causes these
warnings in *Compile-Log*:

  Buffer *scratch*:4:2: Warning: global/dynamic var `foo' lacks a prefix
  Buffer *scratch*:4:2: Warning: `make-variable-buffer-local' not called at
          toplevel

..  The position 4:2 is the position of eval-and-compile, not the correct
positions of the two warning messages.  This is a bug.

[Side note: When eval-and-compile is replaced by eval-when-compile,
correct warning positions are generated thus:

  Buffer *scratch*:5:11: Warning: global/dynamic var `foo' lacks a prefix
  Buffer *scratch*:6:4: Warning: `make-variable-buffer-local' not called at
          toplevel

..]

-- 
Alan Mackenzie (Nuremberg, Germany).

Message #10 received at 61579-done <at> debbugs.gnu.org (full text, mbox):

From: Alan Mackenzie <acm <at> muc.de>
To: 61579-done <at> debbugs.gnu.org
Subject: Re: bug#61579: master branch: Byte compilation: Warning messages
 inside eval-and-compile lose their positions.
Date: Fri, 17 Feb 2023 17:37:55 +0000

Hello, Emacs.

This bug has been fixed in the master branch.

On Fri, Feb 17, 2023 at 17:08:56 +0000, Alan Mackenzie wrote:
> In buffer *scratch*, enter the following:

> (eval-and-compile
>   (defvar foo "foo")
>   (make-variable-buffer-local 'foo))

> ..  With point inside that form, do M-x compile-defun.  This causes these
> warnings in *Compile-Log*:

>   Buffer *scratch*:4:2: Warning: global/dynamic var `foo' lacks a prefix
>   Buffer *scratch*:4:2: Warning: `make-variable-buffer-local' not called at
>           toplevel

> ..  The position 4:2 is the position of eval-and-compile, not the correct
> positions of the two warning messages.  This is a bug.

> [Side note: When eval-and-compile is replaced by eval-when-compile,
> correct warning positions are generated thus:

>   Buffer *scratch*:5:11: Warning: global/dynamic var `foo' lacks a prefix
>   Buffer *scratch*:6:4: Warning: `make-variable-buffer-local' not called at
>           toplevel

> ..]

-- 
Alan Mackenzie (Nuremberg, Germany).

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