GNU bug report logs - #49407
Request: Specify default values in `map-let` in Map.el

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Package: emacs;

Reported by: Okam <okamsn <at> protonmail.com>

Date: Sun, 4 Jul 2021 23:10:01 UTC

Severity: wishlist

Fixed in version 30.1

Done: "Basil L. Contovounesios" <contovob <at> tcd.ie>

Bug is archived. No further changes may be made.

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Message #22 received at 49407 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Michael Heerdegen <michael_heerdegen <at> web.de>
Cc: Okam <okamsn <at> protonmail.com>, Lars Ingebrigtsen <larsi <at> gnus.org>,
 49407 <at> debbugs.gnu.org, Nicolas Petton <nicolas <at> petton.fr>
Subject: Re: bug#49407: Request: Specify default values in `map-let` in Map.el
Date: Sat, 22 Jul 2023 11:45:02 -0400

>> However, I have a question about avoiding using a lambda. I see that
>> the pattern uses `pcase--flip`, which is "used internally to avoid
>> (funcall (lambda ...) ...)". Why should lambda functions be avoided
>> for this,
> As far as I understand, to produce more efficient code.

Indeed.

>> and I should be using a custom helper function for this one pattern?
> Stefan, would you want to extend `pcase--flip' to more arguments to
> support this case?

Probably not worth it, no.


        Stefan
This bug report was last modified 2 years and 2 days ago.

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