guile-knots/tests/backtraces/vhash-fold.scm
Christopher Baines b3fa4d069b
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Rework the backtrace handling
Try and improve the print-backtrace-and-exception/knots output, be
selective about the stack frames which are shown to try and produce
some useful output which reflects user code and hide the
&knots-exceptions.

This commit also introduces a bunch of tests scripts that produce
output from print-backtrace-and-exception/knots, to help test this
code in different situations.
2026-03-22 18:31:56 +00:00

24 lines
547 B
Scheme

(use-modules (knots) (ice-9 vlist))
;; LAST BACKTRACE ENTRY: 257:2
(define (do-fold)
(begin
(vhash-fold
(lambda (key value result)
;; Shouldn't be reached
#f)
0
;; The aim here is to pass in #f for the vlist, and cause an
;; exception within the (ice-9 vlist) module
#f)
'done))
;; FIRST BACKTRACE ENTRY: 1762:12 (with-exception-handler
(with-exception-handler
(lambda (exn)
(print-backtrace-and-exception/knots exn)
(primitive-exit 1))
(lambda ()
(do-fold)
'done))