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From: Drew Adams <drew.adams@oracle.com>
To: Heime <heimeborgia@protonmail.com>,
	Michael Heerdegen <michael_heerdegen@web.de>
Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
Subject: RE: [External] : Re: Passing result of macroexpand-all as argument to a function
Date: Wed, 9 Aug 2023 15:27:01 +0000	[thread overview]
Message-ID: <SJ0PR10MB5488FFE1DDC95FA3E5D7A6C9F312A@SJ0PR10MB5488.namprd10.prod.outlook.com> (raw)
In-Reply-To: <Iacr_zQ2fZMWLGM2c6RfpJBhtd8flyomcmDmDs-ywHDDALlSHZcXfYVDRJdd8AbGfErp9EkDYO1ShNN1vqNITrW26pi7HIfRgox7PoXfCQU=@protonmail.com>

> > Why don't you just try?
> I do not think one can just try it

Yes, you can.  (This is the beauty of Lisp.)

> because it is not evident at what instance in
> time does the interpreter interpret the output
> code of a macro.

As mentioned, a macro _call_, such as (mymacro...)
is interpreted at that same time any Lisp form is.

What's particular about interpreting a macro call
is that first the call is macroexpanded, according
to the macro definition, and then the expansion
result is interpreted (evaluated) - immediately.
That's all.

If you byte-compile the Lisp source code then the
macro call gets macroexpanded during compilation,
and the result of expansion is then compiled to
produce the byte-compiled code.  In effect, the
macro-call source code disappears and is replaced
by the expansion, in line, and the resulting code
is then byte-compiled.

  reply	other threads:[~2023-08-09 15:27 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-09  0:22 Passing result of macroexpand-all as argument to a function Heime
2023-08-09  1:37 ` Pierre Rouleau
2023-08-09  2:04   ` Heime
2023-08-09  2:26     ` Corwin Brust
2023-08-09  2:40       ` Heime
2023-08-09  2:27     ` [External] : " Drew Adams
2023-08-09  2:53       ` Heime
2023-08-09  4:02         ` Pierre Rouleau
2023-08-09  4:14         ` Drew Adams
2023-08-09  3:37       ` Michael Heerdegen
2023-08-09  4:13         ` Heime
2023-08-09  4:36           ` Michael Heerdegen
2023-08-09  4:54             ` Heime
2023-08-09 15:21               ` Drew Adams
2023-08-09  4:28         ` Drew Adams
2023-08-09  3:39     ` Michael Heerdegen
2023-08-09  5:06       ` Heime
2023-08-09 15:27         ` Drew Adams [this message]
2023-08-09 20:34           ` [External] : " Heime
2023-08-09 21:24             ` Drew Adams
2023-08-09 21:32               ` Heime

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