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Re: Are "proper" closures used in Emacs sources?

From: Zhu Zihao
Subject: Re: Are "proper" closures used in Emacs sources?
Date: Tue, 12 Jan 2021 23:56:51 +0800
User-agent: mu4e 1.4.14; emacs 27.1

Marcin Borkowski writes:

> Hi all,
> it's been quite some time since lexical binding was introduced to
> Elisp.  Apart from possible optimizations and being less error-prone, it
> allows for all the cool tricks with closures.  Are there any places in
> Emacs core where "proper" closures are actually used?  (By "proper",
> I mean closures with non-empty lexical environment, actually using said
> environment.)
> TIA,

thunk.el & generator.el 

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