Re: [Emacs-diffs] master 05dc679: Turn on lexical-binding in json.el

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Date: Thu, 11 Aug 2016 16:35:45 -0400
> 
> Lexical variables aren't stored in symbols's slots, but in the byte-code
> stack.  So a variable access is an access to the (byte-code) stack with
> a fixed offset.  Not sure how much faster that makes it, tho.

I think the reason might be not the storage method, but the fact that
dynamic variables need to be looked up in every buffer in the session,
if a variable can be buffer-local.