GNU bug report logs - #10991
syntax-local-binding does not play well with fluid-let-syntax

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Package: guile;

Reported by: Stefan Israelsson Tampe <stefan.itampe <at> gmail.com>

Date: Sun, 11 Mar 2012 12:18:01 UTC

Severity: normal

Done: Andy Wingo <wingo <at> pobox.com>

Bug is archived. No further changes may be made.

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Message #8 received at 10991 <at> debbugs.gnu.org (full text, mbox):

From: Andy Wingo <wingo <at> pobox.com>
To: Stefan Israelsson Tampe <stefan.itampe <at> gmail.com>
Cc: 10991 <at> debbugs.gnu.org
Subject: Re: bug#10991: syntax-local-binding does not play well with
	fluid-let-syntax
Date: Fri, 06 Jul 2012 11:25:36 +0200

Hi Stefan,

Sorry for the late reply.

On Sun 11 Mar 2012 12:47, Stefan Israelsson Tampe <stefan.itampe <at> gmail.com> writes:

> ;;This shows that f rebounds to yield #t but the info returns %f
> (eq?
>  (fluid-let-syntax ((f (lambda x #'#t)))
>    (pk (f 1))
>    (info f))
>  %f)

This is by design.  This is as in Racket, where there is a difference
between syntax-local-value and syntax-parameter-value.  In master, there
is an additional parameter to resolve-identifier,
`resolve-syntax-parameters?'.

Suggestion: if you want this, add a similar parameter to psyntax.scm in
stable-2.0, and in both branches plumb it through to a keyword argument
on syntax-local-binding.  Update the docs, too :)  You had the
beginnings of a patch on bug 10992.

Thanks!

Andy
-- 
http://wingolog.org/
This bug report was last modified 12 years and 70 days ago.

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