emacs-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: trunk r117969: Font-lock `cl-flet*', too.


From: Stefan Monnier
Subject: Re: trunk r117969: Font-lock `cl-flet*', too.
Date: Sun, 28 Sep 2014 21:30:11 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux)

> I compare the expansions of these two forms and they look quite similar
> to me.  What kind of inefficiency do you have in mind?

Notice the `setq's?  These make a big difference in lexical-binding code
(since they mean that we can't close over the var's value but have to
close over the var's memory location, which gets reified as a cons
cell).


        Stefan



reply via email to

[Prev in Thread] Current Thread [Next in Thread]