From: Julian Graham <joolean@gmail.com>
To: Guile Users <guile-user@gnu.org>
Subject: wrapping `define-syntax'
Date: Sun, 12 Apr 2009 18:55:22 -0400 [thread overview]
Message-ID: <2bc5f8210904121555v1090cb8ej6602f72beefa2f20@mail.gmail.com> (raw)
Hi Guilers,
For the purpose of some experiments I've been doing with integrating
R6RS libraries, I've been trying to figure out ways to wrap
`define-syntax' so that I can do things like add bindings to a
module's eval closure before evaluating a macro definition. As part
of this mechanism, I need to be able to save the original transformer
for `define-syntax' so that I can delegate to it. When I run the
following code (either in master or Andy Wingo's "syncase" branch)...
(use-modules (ice-9 syncase))
(define canonical-define-syntax (@ (ice-9 syncase) define-syntax))
(canonical-define-syntax foo (syntax-rules () ((_) 'foo)))
...I get:
ERROR: In procedure vm-run:
ERROR: VM: Stack overflow
I've also tried doing:
(define canonical-define-syntax
(procedure->memoizing-macro (macro-transformer (@ (ice-9 syncase)
define-syntax))))
...which produces, when I try to use it:
ERROR: unknown kind of macro
So I'm curious: regardless of whether what I'm trying to do is a good
idea, is it feasible -- and if so, what's the right way to do it?
Regards,
Julian
next reply other threads:[~2009-04-12 22:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-12 22:55 Julian Graham [this message]
2009-04-13 9:35 ` wrapping `define-syntax' Neil Jerram
2009-04-13 13:39 ` Julian Graham
2009-04-13 13:55 ` Julian Graham
2009-04-15 11:41 ` Andy Wingo
2009-04-18 20:52 ` Julian Graham
2009-04-15 11:25 ` Andy Wingo
2009-04-17 3:42 ` Julian Graham
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