Hi Maxim,
> When raising a srfi-35 defined exception type like in the following, a > generic (and unhelpful) "Error while printing exception" message is > shown, with not even the exception type mentioned: > > (use-modules (srfi srfi-35)) > > (define-condition-type &platform-not-found-error &error > platform-not-found-error?) > > (raise-exception &platform-not-found-error) > > > Produces: > > Backtrace: > In ice-9/boot-9.scm: > 1752:10 5 (with-exception-handler _ _ #:unwind? _ # _) > In unknown file: > 4 (apply-smob/0 #<thunk 7f236157a2e0>) > In ice-9/boot-9.scm: > 724:2 3 (call-with-prompt _ _ #<procedure default-prompt-handle…>) > In ice-9/eval.scm: > 619:8 2 (_ #(#(#<directory (guile-user) 7f2361580c80>))) > In ice-9/boot-9.scm: > 2836:4 1 (save-module-excursion _) > 4388:12 0 (_) > > ice-9/boot-9.scm:4388:12: Error while printing exception. > > This is probably not by design, right? Perhaps not, but conditions are expected to be raised with “raise”: --8<---------------cut here---------------start------------->8--- (use-modules (srfi srfi-34) (srfi srfi-35)) (define-condition-type &platform-not-found-error &error platform-not-found-error?) (raise (condition (&platform-not-found-error))) ice-9/boot-9.scm:1685:16: In procedure raise-exception: ERROR: 1. &platform-not-found-error --8<---------------cut here---------------end--------------->8--- -- Ricardo