X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=eightsync%2Fagenda.scm;h=7ee0ec4d9dd11d24350905eabcb90f2199e18896;hb=b07ab146b53a1305de96cbc6f9844660920329d5;hp=edade135c09499e7b08beaf86c573c01d5fb3e1e;hpb=fbb1776a35db50db19fc158381e74361d6e9b789;p=8sync.git diff --git a/eightsync/agenda.scm b/eightsync/agenda.scm index edade13..7ee0ec4 100644 --- a/eightsync/agenda.scm +++ b/eightsync/agenda.scm @@ -67,6 +67,12 @@ catch-8sync catch-%8sync + ;; used for introspecting the error, but a method for making + ;; is not exposed + wrapped-exception? + wrapped-exception-key wrapped-exception-args + wrapped-exception-stacks + print-error-and-continue %current-agenda @@ -479,7 +485,7 @@ return the wrong thing via (%8sync) and trip themselves up." (define-syntax-rule (propagate-%async-exceptions body) (let ((body-result body)) (if (wrapped-exception? body-result) - (throw '%8sync-caught-error + (throw '8sync-caught-error (wrapped-exception-key body-result) (wrapped-exception-args body-result) (wrapped-exception-stacks body-result)) @@ -512,10 +518,9 @@ return the wrong thing via (%8sync) and trip themselves up." ;; If something bad happened and we didn't catch it, ;; we'll wrap it up in such a way that the continuation ;; can address it - ;; @@: For this stack to work doesn't it have to be (lambda (key . args) (cond - ((eq? key '%8sync-caught-error) + ((eq? key '8sync-caught-error) (match args ((orig-key orig-args orig-stacks) (make-wrapped-exception @@ -546,7 +551,7 @@ return the wrong thing via (%8sync) and trip themselves up." body ...))))) (define-syntax-rule (catch-8sync exp (handler-key handler) ...) - (catch '%8sync-caught-error + (catch '8sync-caught-error (lambda () exp) (lambda (_ orig-key orig-args orig-stacks) @@ -554,7 +559,7 @@ return the wrong thing via (%8sync) and trip themselves up." ((or (eq? handler-key #t) (eq? orig-key handler-key)) (apply handler orig-stacks orig-args)) ... - (else (raise '%8sync-caught-error + (else (raise '8sync-caught-error orig-key orig-args orig-stacks)))))) ;; Alias...? @@ -693,10 +698,11 @@ return the wrong thing via (%8sync) and trip themselves up." (agenda-queue agenda)) (loop agenda)))))) -(define (print-error-and-continue . args) +(define (print-error-and-continue key . args) "Frequently used as pre-unwind-handler for agenda" - (format (current-error-port) "\n*** Caught exception with arguments: ~s ***\n" - args) + (format (current-error-port) + "\n*** Caught exception with key '~s and arguments: ~s ***\n" + key args) (display-backtrace (make-stack #t 1 0) (current-error-port)) (newline (current-error-port)))