From: Rob Browning <rlb@defaultvalue.org>
To: guile-devel@gnu.org
Subject: Should an enclosing let keep the compiler from handling define-module?
Date: Wed, 24 Jul 2019 10:27:18 -0500 [thread overview]
Message-ID: <875znrmp0p.fsf@trouble.defaultvalue.org> (raw)
This doesn't work with 2.2.4:
(eval-when (expand load eval)
(let ((ignored #t))
(define-module (bar)
#:use-module (has-foo))
(format #t "foo: ~s\n" (foo))))
producing:
ERROR: In procedure %resolve-variable:
Unbound variable: foo
Is that expected? I'm not sure if what I was attempting is reasonable,
but the original motivation was wanting to create a syntax that can
capture and restore some state around the invocation of define-module,
e.g.:
(define-syntax def-mod
(lambda (x)
(syntax-case x ()
((_ name)
#`(eval-when (expand load eval)
(let ((orig (current-language)))
(current-language 'scheme)
(define-module name
#:use-module (has-foo))
...
(current-language orig)))))))
Thanks
--
Rob Browning
rlb @defaultvalue.org and @debian.org
GPG as of 2011-07-10 E6A9 DA3C C9FD 1FF8 C676 D2C4 C0F0 39E9 ED1B 597A
GPG as of 2002-11-03 14DD 432F AE39 534D B592 F9A0 25C8 D377 8C7E 73A4
next reply other threads:[~2019-07-24 15:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-24 15:27 Rob Browning [this message]
2019-08-05 18:04 ` Should an enclosing let keep the compiler from handling define-module? Mark H Weaver
2019-08-06 1:31 ` Rob Browning
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