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Re: Replace trivial pcase occurrences in the Emacs sources
From: |
Garreau\, Alexandre |
Subject: |
Re: Replace trivial pcase occurrences in the Emacs sources |
Date: |
Thu, 01 Nov 2018 02:40:23 +0100 |
User-agent: |
Gnus (5.13), GNU Emacs 25.1.1 (i686-pc-linux-gnu, GTK+ Version 3.22.11) of 2017-09-15, modified by Debian |
On 2018-10-30 at 21:54, Eli Zaretskii wrote:
> No, I think "destructuring" is about right. How about this text:
>
> @dfn{Destructuring} of an object is an operation that extracts
> multiple values stored in the object, e.g., the 2nd and the 3rd
> element of a list or a vector. @dfn{Destructuring binding} is
> similar to a local binding (@pxref{Local Variables}), but it gives
> values to multiple elements of a variable by extracting those values
> from an object of compatible structure.
“(car list)” is extracting a value stored in an object, yet it’s not
destructuring (though a list is a structure). Nor even is “(cons (car
list) (caddr list))” or “(setq a (nth 1 list) b (nth 2 list))”.
I’d say destructuring, like in python (so to stop referring ocaml) “a,b
= 2,3”, implies a “specification reflecting the structure”, so “a,b”
*has* to be a pair/two-elements array/list/whatever. So how about:
@dfn{Destructuring} of an object is an operation that extracts
multiple values stored in the object, by speciying a structure
reflecting it, e.g., the 2nd and the 3rd element of a 3-elements list
or a vector.
- Re: Replace trivial pcase occurrences in the Emacs sources, (continued)
- Re: Replace trivial pcase occurrences in the Emacs sources, Eric Abrahamsen, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Garreau\, Alexandre, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources,
Garreau\, Alexandre <=
- Re: Replace trivial pcase occurrences in the Emacs sources, Dmitry Gutov, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/30
- Re: Replace trivial pcase occurrences in the Emacs sources, Dmitry Gutov, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Stefan Monnier, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Dmitry Gutov, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Dmitry Gutov, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Dmitry Gutov, 2018/10/31
- Re: Replace trivial pcase occurrences in the Emacs sources, Eli Zaretskii, 2018/10/31