[Rd] tryCatch in on.exit()

[luke-tierney at uiowa.edu]

This should now be resolved in R-devel and R_patched.

Best,

luke

On Fri, 1 Dec 2017, luke-tierney at uiowa.edu wrote:

> Thanks -- will look into it.
>
> luke
>
> On Fri, 1 Dec 2017, William Dunlap via R-devel wrote:
>
>> The following example involves a function whose on.exit()
>> expression both generates an error and catches the error.
>> The body of the function also generates an error.
>> 
>> When calling the function wrapped in a tryCatch, should
>> that tryCatch's error function be given the error from the
>> body of the function, since the one from the on.exit has
>> already been dealt with?  Currently the outer tryCatch gets
>> the error from the on.exit expression.
>> 
>> xx <- function() {
>>  on.exit(tryCatch(
>>    expr = stop("error in xx's on.exit"),
>>    error=function(e) {
>>      cat("xx's on.exit caught error: <<", conditionMessage(e), ">>\n",
>> sep="")
>>    }))
>>  stop("error in body of xx")
>> }
>> zz <- tryCatch(xx(), error=function(e)paste("outer tryCatch caught error
>> <<", conditionMessage(e), ">>", sep=""))
>> #xx's on.exit caught error: <<error in xx's on.exit>>
>> zz
>> #[1] "outer tryCatch caught error <<error in xx's on.exit>>"
>> 
>> 
>> Bill Dunlap
>> TIBCO Software
>> wdunlap tibco.com
>>
>> 	[[alternative HTML version deleted]]
>> 
>> ______________________________________________
>> R-devel at 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 at uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu