[Rd] re-throwing an interrupt condition

[Gábor Csárdi]

Great! invokeRestart("abort") is a life saver again, the second time this week!

Thanks much!

Gabor

On Sat, Jul 28, 2018 at 6:37 PM <luke-tierney using uiowa.edu> wrote:
>
> The internal code does more or less
>
>      signalCondition(e)     ## allows for (another) handler
>      cat("\n")              ## cleans up console
>      invokeRestart("abort") ## jump to 'abort' restart if not handled
>
> [for back compatibility it also runs the error option code if that is
> set, but that may go away eventually].
>
> A version of your example:
>
> > {
> +     tryCatch(Sys.sleep(100),
> +              interrupt = function(e) {
> +                  e$message <- "interrupted"
> +                  signalCondition(e)
> +                  cat("\n")
> +                  invokeRestart("abort")
> +     })
> +     cat("next step\n")
> + }
> ^C
> >
>
> Best,
>
> luke
>
> On Sat, 28 Jul 2018, Gábor Csárdi wrote:
>
> > Anyone knows a way to re-throw a caught interrupt condition, so that
> > it behaves just like the original one? I.e. no error message is
> > printed, but the execution is stopped of course. With just calling
> > stop in the error handler, it prints the error message, or, if there
> > is no error message (like in the original interrupt condition),
> > another error happens.
> >
> > tryCatch(Sys.sleep(100), interrupt = function(e) {  e$message <-
> > "interrupted"; stop(e) } )
> > <press CTRL + C / ESC here>
> > #> Error: interrupted
> >
> > tryCatch(Sys.sleep(100), interrupt = function(e) stop(e))
> > <press CTRL + C / ESC here>
> > #> Error in stop(e) : bad error message
> >
> > Thanks,
> > Gabor
> >
> > ______________________________________________
> > R-devel using r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-devel
> >
>
> --
> Luke Tierney
> Ralph E. Wareham Professor of Mathematical Sciences
> University of Iowa                  Phone:             319-335-3386
> Department of Statistics and        Fax:               319-335-3017
>     Actuarial Science
> 241 Schaeffer Hall                  email:   luke-tierney using uiowa.edu
> Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu