From: Emanuel Berg via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: lexical-let void function
Date: Sun, 27 Mar 2022 00:46:02 +0100 [thread overview]
Message-ID: <87a6dcs2f9.fsf@zoho.eu> (raw)
In-Reply-To: 87o81s8f8q.fsf@gnu.org
GNU Hacker wrote:
> I find `lexical-let' func in a old emacs script, but it is
> a void function in my emacs version 28.0.92
>
> maybe require it any emacs package?
My intuition tells me to avoid using that ...
Use
;;; -*- lexical-binding: t -*-
topmost and then just `let' even tho it's ugly.
Something's up with `lexical-let' ... but don't know what?
But as for what it is, it is
lexical-let is a Lisp macro in ‘cl.el’.
(lexical-let BINDINGS BODY)
Like ‘let’, but lexically scoped.
The main visible difference is that lambdas inside BODY will
create lexical closures as in Common Lisp.
Probably introduced at or before Emacs version 24.3.
That docstring isn't good either BTW as has been mentioned ...
--
underground experts united
https://dataswamp.org/~incal
prev parent reply other threads:[~2022-03-26 23:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-26 23:29 lexical-let void function GNU Hacker
2022-03-26 23:42 ` Óscar Fuentes
2022-03-26 23:54 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-27 0:08 ` GNU Hacker
2022-03-27 0:40 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-27 0:49 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-03-26 23:46 ` Emanuel Berg via Users list for the GNU Emacs text editor [this message]
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