From: Stephen Compall <s11@member.fsf.org>
To: ludo@gnu.org (Ludovic Courtès)
Cc: guile-devel@gnu.org
Subject: Re: [patch] variable datums with syncase transformer
Date: Wed, 05 Mar 2008 09:36:12 -0600 [thread overview]
Message-ID: <m23ar518ur.fsf@nocandy.dyndns.org> (raw)
In-Reply-To: <878x0x5i92.fsf@gnu.org> ("Ludovic Courtès"'s message of "Wed, 05 Mar 2008 15:59:37 +0100")
ludo@gnu.org (Ludovic Courtès) writes:
> OTOH, you can (should?) use `use-modules':
> <snip>
>
> I don't even understand what the difference is between using
> `use-modules' and `use-syntax' for `(ice-9 syncase)'.
guile> (use-modules (ice-9 syncase))
guile> (define-syntax x-of-y
(lambda (stx)
(syntax-case stx ()
(_ (syntax (hashq-ref y 'x))))))
guile> x-of-y
#<macro! sc-macro>
;;restart
guile> ;;same as above, using use-syntax instead
guile> x-of-y
Backtrace:
In unknown file:
?: 0* [hashq-ref ...
<unnamed port>: While evaluating arguments to hashq-ref in expression (hashq-ref y (quote x)):
<unnamed port>: Unbound variable: y
--
But you know how reluctant paranormal phenomena are to reveal
themselves when skeptics are present. --Robert Sheaffer, SkI 9/2003
next prev parent reply other threads:[~2008-03-05 15:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-14 8:06 [patch] variable datums with syncase transformer Stephen Compall
2008-03-05 14:59 ` Ludovic Courtès
2008-03-05 15:36 ` Stephen Compall [this message]
2008-03-05 16:34 ` Ludovic Courtès
2008-03-05 20:55 ` Neil Jerram
2008-03-05 22:16 ` Stephen Compall
2008-03-05 23:21 ` Ludovic Courtès
2008-03-06 23:28 ` Neil Jerram
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