GNU bug report logs - #73853
Should and-let* become a synonym for when-let*?

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Message #192 received at 73853 <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 73853 <at> debbugs.gnu.org, Sean Whitton <spwhitton <at> spwhitton.name>
Subject: Re: bug#73853: Should and-let* become a synonym for when-let*?
Date: Sun, 19 Jan 2025 06:08:37 +0100

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

> That goes back to my earlier question: what makes `and/when/if-let` so
> different from `ignore-errors` and so many other constructs.

What makes `pcase's let/app/pred/guard different from and/when/if-let?
There is likewise lots of redundancy, and the subtle differences are
hard to grasp and remember for a lot of people.  Would you remove the
two least used ones?

I also still remember your reaction when I had used a let pattern to do
destructuring with combined testing and you meant that it was not
designed for it and would be weird.  Because you associated a semantic
with it that was not necessarily implied for me.

So isn't your personal taste in this case here relevant too, for what
you want to do?


Michael.

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