Turn-off debugger in Emacs SLIME

1
votes

According to this question, I can customize the variable *DEBUGGER-HOOK* so that it falls back to toplevel (in REPL) instead of the debugger. I've added this line to my ~/.sbclrc and it's all fine when I start sbcl from command line.

(setf *debugger-hook* #'(lambda (c h) (declare (ignore h)) (print c) (abort)))

But, the above doesn't work for Emacs SLIME. Whenever I compile/load a file (C-c C-k), it still invokes the debugger (with options like abort calculation, restart, enter new value etc.). How can I ask SLIME to just print the error message and throw me back to toplevel? Yea, it's with SBCL and the same ~/.sbclrc as before. Looks like SLIME doesn't respect a user's setting of *DEBUGGER-HOOK*.

1
emacslispcommon-lispslimesbcl
I imagine *DEBUGGER-HOOK* refers to the implementation's debugger. It is part of the standard. So, I don't think SLIME is required to respect it. – Faheem Mitha
@FaheemMitha Yes, it is part of the Common Lisp standard: clhs.lisp.se/Body/v_debugg.htm – Satish

1 Answers

1
votes

As per http://common-lisp.net/project/slime/doc/html/Other-configurables.html setting SWANK:*GLOBAL-DEBUGGER* to nil in ~/.swank.lisp file should force SLIME to not replace *DEBUGGER-HOOK* to SWANK:SWANK-DEBUGGER-HOOK (which shows list of restarts etc.), but it somehow doesn't work for me, i.e. SWANK:*GLOBAL-DEBUGGER* is nil but anyway *DEBUGGER-HOOK* is replaced by SLIME. Maybe you'll be more lucky.

As a workaround I can propose to set *DEBUGGER-HOOK* to whatever you want in the slime-repl buffer manually, which is worked for me.