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From: Marius Vollmer <marius.vollmer@uni-dortmund.de>
Subject: Re: let-values, and-let* no variables
Date: Fri, 20 Aug 2004 12:28:49 +0200	[thread overview]
Message-ID: <ljk6vut866.fsf@troy.dt.e-technik.uni-dortmund.de> (raw)
In-Reply-To: <87isbea99y.fsf@zip.com.au> (Kevin Ryde's message of "Fri, 20 Aug 2004 11:27:37 +1000")

Kevin Ryde <user42@zip.com.au> writes:

> I'm contemplating the way "begin" is used for the body of let-values
> and and-let* with no bindings.  It has the unhappy effect of allowing
> what is visually an internal define to go out into the containing
> environment, eg.

Uhh, intuitively I'd say that this is wrong behavior.  Maybe you
should ask on comp.lang.scheme.

> I guess nobody would write an empty and-let* or let-values
> deliberately, but it could arise out of a macro.  I'm thinking to put
> some words of caution in the manual, to make it clear the body isn't
> the same as a plain "let" or "let*".

That would be good, even if we 'fix' our implementation to behave
differently.


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  reply	other threads:[~2004-08-20 10:28 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-20  1:27 let-values, and-let* no variables Kevin Ryde
2004-08-20 10:28 ` Marius Vollmer [this message]
2004-09-07  0:12   ` Kevin Ryde
2004-09-21 22:09     ` Marius Vollmer

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