From: Eli Zaretskii <eliz@gnu.org>
To: Damien Cassou <damien@cassou.me>
Cc: emacs-devel@gnu.org
Subject: Re: Using the content of a dynamic variable in a macro
Date: Sat, 25 Feb 2023 11:38:01 +0200 [thread overview]
Message-ID: <83fsaukruu.fsf@gnu.org> (raw)
In-Reply-To: <87o7pi9m9s.fsf@cassou.me> (message from Damien Cassou on Sat, 25 Feb 2023 09:34:07 +0100)
> From: Damien Cassou <damien@cassou.me>
> Date: Sat, 25 Feb 2023 09:34:07 +0100
>
> I'm wondering why the code below works but won't compile.
>
> foo.el:
> (defvar foo-var '((message "hello world")))
>
> (defmacro foo-macro ()
> `(progn
> ,@foo-var))
>
> (defun foo-fun ()
> (foo-macro))
>
>
> $ emacs --batch -l foo.el --eval '(foo-fun)'
> hello world
>
> $ emacs --batch --eval '(find-file "foo.el")' --eval '(emacs-lisp-byte-compile)'
> In toplevel form:
> foo.el:32:1: Error: Symbol’s value as variable is void: foo-var
>
> Why isn't the compiler aware of the foo-var variable?
Because lexical-binding is turned on?
next prev parent reply other threads:[~2023-02-25 9:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-25 8:34 Using the content of a dynamic variable in a macro Damien Cassou
2023-02-25 9:38 ` Eli Zaretskii [this message]
2023-02-25 9:43 ` Damien Cassou
2023-02-25 12:32 ` Lynn Winebarger
2023-02-27 3:24 ` Richard Stallman
2023-02-27 19:05 ` Basil Contovounesios
2023-02-28 2:44 ` Lynn Winebarger
2023-02-25 9:40 ` tomas
2023-02-27 19:03 ` Basil Contovounesios
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