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Re: Lexical binding: why?

From: Stefan Monnier
Subject: Re: Lexical binding: why?
Date: Tue, 28 May 2019 09:25:04 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

> I think js2-mode in lexical-binding is still ~10% slower than the dynamic
> binding mode,

Oh, well!  I thought we had a better story there :-(

Maybe the speed up I remember was linked to the rework I suggested back
then to work around the poor lexical-scoping performance (mainly moving
a condition-case outside of a loop, IIRC) and that actually improved
performance with both lexical and dynamic binding?


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