Support for Rcpp::exceptions without call stacks

[jimhester]

I would like to have an API for constructing Rcpp exceptions without call stacks, also potentially also an argument to Rcpp::stop() analogous to stop(call. = FALSE), although the latter is mostly just sugar if you can throw the desired Rcpp exception manually.

You can view a working implementation of this is at master...jimhester:exceptions_without_callstacks

[eddelbuettel]

So when I call stop() I get something like

R> cppFunction('void loudStop() { stop("Boom"); }')
R> loudStop()
Error in loudStop() : Boom
R> 
R> anotherLayer <- function() loudStop()
R> anotherLayer()
Error in loudStop() (from #1) : Boom
R> 

Do I understand you correctly that you just want to see Boom ?

[jimhester]

Yes exactly, this is R equivalent

(function() stop("boom"))()
#> Error in (function() stop("boom"))() : boom

(function() stop("boom", call. = FALSE))()
#> Error: boom

[eddelbuettel]

I'm in favor. I am a somewhat-recent (a year? two) convert to call.=FALSE which I use more and more.

[coatless]

This issue ticket can be closed as it was addressed in #663.