[slime-devel] Re: problem with swank-debugger-hook

[Christophe Rhodes]

"Marco Baringer" <mb at bese.it> writes:

> frederic.gobry at epfl.ch (Frédéric Gobry) writes:
>
>>> try using #'swank:swank-debugger-hook instead.
>>
>> Is it ok to pass nil as the "hook" argument? So far, the hook seems
>> not to be used, but this does not tell me what I should put there to
>> be safe :)
>
> the hook argument to swank-debugger-hook is ignored, so pass whatever
> you want.
>
> why don't we just remove the argument if it's ignored? are we sure it
> sholud be ignored?

If we're offering the possibility of using swank-debugger-hook as
CL:*DEBUGGER-HOOK*, then it needs to be a function of two arguments.

*DEBUGGER-HOOK* is bound to nil when calling the current debugger
hook; it may be necessary to introduce 
  (let ((*debugger-hook* hook))
    ...)
around debugger hook activities that may invoke the debugger...

Cheers,

Christophe