From: Douglas Lewan <d.lewan2000@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Compiling a recursive macro
Date: Fri, 12 Jun 2020 12:11:56 -0400 [thread overview]
Message-ID: <cd724520-5094-c25d-8580-2f413ce2caae@gmail.com> (raw)
In-Reply-To: <874krg4l00.fsf@web.de>
On 6/12/20 6:49 AM, Michael Heerdegen wrote:
> Douglas Lewan <d.lewan2000@gmail.com> writes:
>
>> They are buffer-local. Definition of such a variable spans the tree of
>> buffers in question. I suppose I could just define them in the root
>> buffer, but then I'd also need to use a specialized getter instead of
>> the variable itself. The latter definitely seems preferable to me. If
>> there's a way to do this with emacs lisp's natural scoping, I'm more
>> than happy to learn.
> If you want to use local variables: `make-local-variable' makes a
> variable local in the current buffer, `make-variable-buffer-local'
> generally; both are functions (not special forms or macros). And the
> getter is `buffer-local-value'; also a function.
>
> Michael.
Indeed. The macros I've written wrap (make-local-variable), but contain
logic that reflects the structure that I'm working with. The package is
intended to be generic, so expecting the user to rewrite the logic over
and over seems inappropriate.
BTW both (make-local-variable) and (make-variable-buffer-local) are
written in C, so they can have direct and transparent access to symbols.
That's a luxury that mere emacs lisp programmers don't have with functions.
--
,Doug
d.lewan2000@gmail.com
(908) 720 7908
If this is what winning looks like, I'd hate to see what losing is.
next prev parent reply other threads:[~2020-06-12 16:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-11 20:15 Compiling a recursive macro Douglas Lewan
2020-06-11 20:57 ` Stefan Monnier
2020-06-11 21:23 ` Douglas Lewan
2020-06-11 21:32 ` Michael Heerdegen
2020-06-11 21:38 ` Douglas Lewan
2020-06-11 21:55 ` Michael Heerdegen
2020-06-11 22:21 ` Douglas Lewan
2020-06-12 10:49 ` Michael Heerdegen
2020-06-12 16:11 ` Douglas Lewan [this message]
2020-06-12 2:10 ` Douglas Lewan
2020-06-13 9:49 ` Michael Heerdegen
2020-06-13 13:34 ` Jakub Jankiewicz
2020-06-11 22:02 ` Stefan Monnier
2020-06-11 21:27 ` Michael Heerdegen
2020-06-12 0:03 ` Jakub Jankiewicz
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