GNU bug report logs - #70137
30.0.50; pp-macroexpand-last-sexp buffers should turn lexical binding on

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Package: emacs;

Reported by: Augusto Stoffel <arstoffel <at> gmail.com>

Date: Tue, 2 Apr 2024 06:02:02 UTC

Severity: normal

Found in version 30.0.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Augusto Stoffel <arstoffel <at> gmail.com>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 70137 <at> debbugs.gnu.org
Subject: bug#70137: 30.0.50; pp-macroexpand-last-sexp buffers should turn lexical binding on
Date: Tue, 02 Apr 2024 14:59:21 +0300

> From: Augusto Stoffel <arstoffel <at> gmail.com>
> Date: Tue, 02 Apr 2024 08:01:18 +0200
> 
> If you call pp-macroexpand-last-sexp in a buffer with lexical binding,
> the resulting *Pp Macroexpand Output* buffer has lexical binding turned
> off.
> 
> The problem with this is that if you now go the *Pp Macroexpand Output*
> buffer and call pp-macroexpand-last-sexp again, this second macro
> expansion step may not reflect what would happen in the original buffer;
> I don't recall an example, but some macros expand differently in the two
> variable scoping modes.

Adding Stefan.
This bug report was last modified 1 year and 36 days ago.

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