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bug#56739: 29.0.50; `cl-psetq' and `cl-psetf' fail to recognize symbol m
From: |
Gerd Möllmann |
Subject: |
bug#56739: 29.0.50; `cl-psetq' and `cl-psetf' fail to recognize symbol macros |
Date: |
Sat, 09 Sep 2023 11:24:43 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Wing Hei Chan <whmunkchan@outlook.com> writes:
> Resending this message as I didn't send it to the thread.
>
> > Afaik, *left-hand* side symbol macros are all handled correctly:
> >
> > - `setq' is handled by `cl-symbol-macrolet' itself;
> > - `setf' expands symbol macros as needed;
> > - `cl-setq' and `cl-setf' expand to `setf'.
> >
> > The original bug is about *right-hand* side symbol macros, namely that
> > `cl-setq' and `cl-setf' can introduce an unsound optimization in such
> > cases. In fact, I'm not sure this optimization is needed anymore (see
> > Stefan's comment). The simplest way to fix the bug is to remove the
> > optimization, but I'll leave the decision to more knowledgeable people.
Then I've possibly misunderstood what this is about, sorry.