Re: Elisp threading macros

[Thierry Volpiatto <thievol@posteo.net>]

Garklein <garklein97@gmail.com> writes:

> Hello,
>
> Would it be possible to have the dash.el macros `->', `->>', `-->',
> and `-some->' in subr-x.el? I find them to be really useful, and would
> love to see them in the base language.

Personally, I have stopped using packages wrote with dash.el, the code is
unreadable, at least for me.
I hope we will not have to suffer of this in Emacs.

> I know that `thread-first' and `thread-last' exist, but I find that my
> eyes can recognize `->' and `->>' much easier. `-->' is really nice
> for more complex threading.
>
> `-some->' is useful in cases like this:
>
> (let (foo (function-which-may-return-nil))
>   (when foo
>     (bar foo)))
>
> which can be rewritten, much cleaner, as
>
> (-some-> foo function-which-may-return-nil bar)

And now we have no idea of what this code does, not speaking of the
diverse ->, --> etc... that are a mystery.

-- 
Thierry