From: Ken Raeburn <raeburn@raeburn.org>
To: Andy Wingo <wingo@pobox.com>
Cc: Michael Lucy <MichaelGLucy@Gmail.com>, guile-devel@gnu.org
Subject: Re: expression
Date: Thu, 24 Jun 2010 10:40:20 -0400 [thread overview]
Message-ID: <023ACD38-01C2-431D-808A-090ECAF22BA2@raeburn.org> (raw)
In-Reply-To: <m3lja47fbn.fsf@pobox.com>
On Jun 24, 2010, at 09:03, Andy Wingo wrote:
> There are actually two kinds of begin: one in definition context and one
> in expression context. The former takes 0 or more forms, and splices
> those forms into the input, where the (begin ...) appears. The other
> takes 1 or more expressions, and evaluates those expression in order,
> returning the value of the last.
Ah, right... so my example was presumably in definition context, so having no additional forms was okay, but Michael's use is probably expression context, where it wouldn't, making my suggestion no good... good to know. :-) Thanks for the correction.
And "*unspecified*" references are optimized by the compiler now? Great! Then "No Itisnt"'s suggestion looks like the right way to go after all...
Ken
prev parent reply other threads:[~2010-06-24 14:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-23 21:09 expression Michael Lucy
2010-06-23 23:14 ` expression No Itisnt
2010-06-23 23:23 ` expression Michael Lucy
2010-06-24 13:01 ` expression Andy Wingo
2010-06-24 6:55 ` expression Ken Raeburn
2010-06-24 7:27 ` expression Thien-Thi Nguyen
2010-06-24 7:52 ` expression Michael Lucy
2010-06-24 13:05 ` expression Andy Wingo
2010-06-24 13:03 ` expression Andy Wingo
2010-06-24 14:40 ` Ken Raeburn [this message]
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