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Re: PLEASE: debugging embedded guile code

From: Neil Jerram
Subject: Re: PLEASE: debugging embedded guile code
Date: 26 Apr 2003 15:51:45 +0100
User-agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7

>>>>> "Dale" == Dale P Smith <address@hidden> writes:

    Dale> On Tue, 25 Feb 2003 15:19:54 +0100 (MET)
    Dale> Joris van der Hoeven <address@hidden> wrote:

    >> So: what should I do in order to enable debugging support
    >> for embedded Guile code? How can I retrieve the location of
    >> a possible error when calling guile code from the main program?

    Dale> The answer is lazy-catch. [...]

    Dale> Here is how I did it in mod-guile:

    Dale> SCM
    Dale> mg_lazy_handler(void *data, SCM tag, SCM throw_args)
    Dale> {
    Dale>   SCM eport = scm_current_error_port(); [...]

I'm curious about this because the question of error handling keeps
popping up and I'm wondering whether our current solution is good
enough.  (With a strong suspicion that it isn't.)

One thing I'm not sure I understand is why you want (or perhaps need)
to do this lazy-catch in C rather than in Scheme, since it would be
much easier in Scheme.  Can you explain?


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