[slime-devel] *break-on-signals* in ccl doesn't break if handler present

[Vsevolod]

Try (setf *break-on-signals* 'error) (or other condition class).

Cheers,
Vsevolod Dyomkin

On Sat, May 23, 2009 at 5:35 PM, Bill St. Clair <billstclair at gmail.com>wrote:

> I'm running the latest CVS version of slime, "2009-05-19" in a fairly
> recent CCL (OpenMCL), "Version 1.3-r11936  (DarwinX8664)".
>
> I would expect the following code to bring up an SLDB buffer with a
> break loop in the repl:
>
> (setq *break-on-signals* t)
>
> (handler-case (error "foo") (error () 1))
>
> Instead, it returns 1. This is not surprising given this in
> swank-openmcl.lisp:
>
> (defun break-in-sldb (x y &rest args)
>  (let ((*sldb-stack-top-hint* (or *sldb-stack-top-hint*
>                                   (ccl::%get-frame-ptr))))
>    (apply #'cerror y (if args "Break: ~a" x) args)))
>
> I'm debugging some server code that really needs to catch all errors.
> This makes it rather difficult. The only workaround I've discovered is
> to set swank-backend::*break-in-sldb* to NIL and use CCL's builtin
> debugger. Not my favorite debugging environment.
>
> Clues, anyone?
>
> I could probably fix this myself, and if nobody else has done it, I
> may be forced to, but I'd rather make progress on my application code.
>
> -Bill
>
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-- 
vsevolod
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