From: Juanma Barranquero <lekktu@gmail.com>
To: Drew Adams <drew.adams@oracle.com>
Cc: 13052@debbugs.gnu.org
Subject: bug#13052: 24.3.50; mention recent change of `kbd' to a function in NEWS
Date: Sun, 2 Dec 2012 02:52:04 +0100 [thread overview]
Message-ID: <CAAeL0SSmVGEnuFFdWJaAd9Mo9QfsQVWx7sLvYewnseaJhpJc1g@mail.gmail.com> (raw)
In-Reply-To: <4A0D4F56F5644FECA0E1476F42EA84E8@us.oracle.com>
On Sun, Dec 2, 2012 at 1:28 AM, Drew Adams <drew.adams@oracle.com> wrote:
> 3. (put 'kbd 'pure t)
> What does putting non-nil property `pure' on a function symbol do? Does
> it mean that the definition will stored in pure storage?
It's not related to pure storage, but to whether the function is
"pure" (without side effecs). If the function is pure and the
arguments satisfy `macroexp-const-p' it is possible to do some
optimization during byte-compilation. See lisp/emacs-lisp/byte-opt.el,
around line 560 or so.
J
next prev parent reply other threads:[~2012-12-02 1:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-02 0:28 bug#13052: 24.3.50; mention recent change of `kbd' to a function in NEWS Drew Adams
2012-12-02 1:52 ` Juanma Barranquero [this message]
2012-12-02 2:18 ` Drew Adams
2012-12-02 2:26 ` Juanma Barranquero
2012-12-02 3:36 ` Drew Adams
2012-12-02 3:50 ` Juanma Barranquero
2012-12-02 4:07 ` Drew Adams
2012-12-02 4:19 ` Juanma Barranquero
2012-12-02 4:50 ` Drew Adams
2012-12-02 11:33 ` Michael Heerdegen
2012-12-02 9:14 ` Chong Yidong
2012-12-02 17:13 ` Drew Adams
2012-12-06 18:02 ` Drew Adams
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