GNU bug report logs - #77550
Regression in macroexpand from a4ec9ca (April 1)

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Package: emacs;

Reported by: Ship Mints <shipmints <at> gmail.com>

Date: Sat, 5 Apr 2025 13:25:02 UTC

Severity: normal

Done: Sean Whitton <spwhitton <at> spwhitton.name>

Bug is archived. No further changes may be made.

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

From: Ship Mints <shipmints <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Cc: Daniel Mendler <mail <at> daniel-mendler.de>
Subject: Regression in macroexpand from a4ec9ca (April 1)
Date: Sat, 5 Apr 2025 09:23:41 -0400

[Message part 1 (text/plain, inline)]
Below found in the wild expanding a macro from Daniel's marginalia package.

Emacs 30
(macroexpand-all '(foo bar)) -> (foo bar)
(macroexpand-all '((foo) bar)) -> ((foo) bar)

master
(macroexpand-all '(foo bar)) -> (foo bar)
(macroexpand-all '((foo) bar)) -> signals an error

Debugger entered--Lisp error: (wrong-type-argument symbolp (foo))
  signal(wrong-type-argument (symbolp (foo)))
  function-get((foo) compiler-macro)

Whether this is an intended or unintended consequence, I can't say, not
being a macro expert.

-Stephane (and Daniel)

[Message part 2 (text/html, inline)]
This bug report was last modified 44 days ago.

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