From: Stefan Monnier <monnier@iro.umontreal.ca>
To: akater <nuclearspace@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: cl-macs: default indentation for all arglists with top-level &body
Date: Sun, 11 Apr 2021 12:23:45 -0400 [thread overview]
Message-ID: <jwvfszwhjyk.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87blalt2w9.fsf@gmail.com> (akater's message of "Sun, 11 Apr 2021 12:35:34 +0000")
> ;; Placing the declaration in the end
> ;; allows overriding the indentation setting
> ;; with an explicit (declare (indent ..)) statement
> ;; manually written in the form being expanded.
> (setq header
> (nconc header
> (list
> `(declare (indent ,according-to-&body))))))
I see one "problem" with this: it provides the `indent` but not the
`debug` spec. Maybe another way to go about it is to try and infer the
`indent` spec from the `debug` spec (since I think it's hopeless to try
and guess the debug spec from the arglist).
> The feature was
> - suggested to be applied to usual ~defmacro~ as well
> - not implemented as there is no ~&body~ in ~defmacro~
> - apparently shelved and then forgotten about
>
> I only suggest to alter ~cl-defmacro~.
It would clearly be a lot more useful to make it work for `defmacro` as
well since the very vast majority of macros are defined with `defmacro`.
> As to whether the macro better inject ~(put ..)~ or ~(declare ..)~ form,
> my preference is for the latter because
FWIW, I think injecting `declare` is cleaner, indeed (but of course it
needs to be careful not to override a pre-existing `declare`).
Stefan
prev parent reply other threads:[~2021-04-11 16:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-11 12:35 cl-macs: default indentation for all arglists with top-level &body akater
2021-04-11 16:23 ` Stefan Monnier [this message]
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