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Re: pure-fns in byte-opt.el
From: |
Stefan Monnier |
Subject: |
Re: pure-fns in byte-opt.el |
Date: |
Wed, 26 Jul 2017 22:46:23 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
> (let ((pure-fns
> - '(concat symbol-name regexp-opt regexp-quote string-to-syntax)))
> + '(concat symbol-name regexp-opt regexp-quote string-to-syntax
> + make-vector)))
Ah, now that makes a lot more sense: make-vector is much less pure than
string-to-char. The above will cause the compiler to replace
(make-vector 2 ?a)
with
[?a ?a]
so you end with a single immediate vector being re-used over and over,
instead of having a new vector created each time.
Stefan
Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/25
- Re: pure-fns in byte-opt.el, Eli Zaretskii, 2017/07/26
- Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/26
- Re: pure-fns in byte-opt.el,
Stefan Monnier <=
- Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/29
- Re: pure-fns in byte-opt.el, Eli Zaretskii, 2017/07/29
- Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/29
- Re: pure-fns in byte-opt.el, Andreas Schwab, 2017/07/29
- Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/29
Re: pure-fns in byte-opt.el, Eli Zaretskii, 2017/07/27
Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/27
Re: pure-fns in byte-opt.el, Eli Zaretskii, 2017/07/28
Re: pure-fns in byte-opt.el, Mark Oteiza, 2017/07/28
Re: pure-fns in byte-opt.el, Eli Zaretskii, 2017/07/29