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Re: [patch] variable datums with syncase transformer

From: Stephen Compall
Subject: Re: [patch] variable datums with syncase transformer
Date: Wed, 05 Mar 2008 09:36:12 -0600
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.50 (gnu/linux)

address@hidden (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>

guile> ;;same as above, using use-syntax instead
guile> x-of-y

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

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