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: Augusto Stoffel <arstoffel <at> gmail.com>
To: 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 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.
This bug report was last modified 1 year and 36 days ago.

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