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Re: Can't define in (if...) after (use-syntax (ice-9 syncase)) ?

From: Andreas Rottmann
Subject: Re: Can't define in (if...) after (use-syntax (ice-9 syncase)) ?
Date: Fri, 27 Aug 2010 16:04:25 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)

Cedric Cellier <address@hidden> writes:

> guile> (use-syntax (ice-9 syncase))
> guile> (if #t (define foo "bar"))
> ERROR: invalid context for definition of foo
> ABORT: (misc-error)
> guile> (version)
> $1 = "1.8.7"
> apparently syncase module is altering the if or define behavior somehow ?
I think it's establishing stricter rules for `define' placement.  Note
that your code is not legal (R5RS) Scheme -- the define is misplaced;
it's neither a top-level nor an internal define.  Also note that Guile
1.9.x has syntax-case always loaded, and rejects your example code as

scheme@(guile-user)> (if #t (define foo "bar"))
While compiling expression:
ERROR: In procedure macroexpand:
ERROR: definition in expression context in subform `foo' of `"bar"'

What do you want to achieve in your code?

Regards, Rotty
Andreas Rottmann -- <>

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