> On Feb 23, 2017, at 12:04 PM, Mike Gran <spk...@yahoo.com> wrote:
>
> * Some helper funcs for debugging. For example, I just found
> out (after a decade) that Guile comes with its own pk. Also,
> a "break REPL here when condition is true" procedure would
> be great. I've sometimes rolled my own with ",break acos" and
> adding (acos 0.0) for the location in question.
>
I am playing with this. Now reading through system/repl/* and system/vm/* to
understand the debugger.
Try
(use-modules (system repl repl))
(use-modules (system repl debug))
(define-syntax-rule (trap-here-0)
(start-repl
#:debug (make-debug (stack->vector (make-stack #t)) 0 "trap!" #t)))
(define (foo)
(let iter ((sum 0) (vals '(1 2 3 5 8 2)))
(trap-here-0)
(cond
((null? vals) sum)
(else (iter (+ sum (car vals)) (cdr vals))))))
(foo)
I have added some debugger commands:
,loc - show current location
,qq - really quit (calls primitive-exit)
scheme@(guile-user) [1]> ,loc
(let iter ((sum 0) (vals '(1 2 3 5 8 2)))
* (trap-here-0)
(cond
scheme@(guile-user) [1]> ,qq
mwette$
