dumpOnError: dumpOnError
In twMisc: Utility functions of tw

Description Usage Arguments Value Author(s) See Also Examples

Functional that creates a dump on error in function FUN

1	dumpOnError(FUN, dumpFileBaseName = "last.dump")

`FUN`	function to be wrapped
`dumpFileBaseName`	baseName of the rda file to dump session to

result of call to FUN, or error thrown by FUN with side effect of a dump created

Thomas Wutzler

dump.frames

throwsError <- function(x){ stop("error in function throwsError.") }
f2 <- function(...){throwsError(...)}
dumpedFun <- dumpOnError(f2)
if( FALSE ){ # do not run non-interactive
    result <- dumpedFun(1)  # throws an error
    # replace last.dump with value supplied to dumpFileBaseName
    load("last.dump.rda")  
    debugger(last.dump)
    # select item #3 FUN(...), i.e. f2, or #4 call to throwsError from f2
    # inspect value of list(...) in f2 or argument x supplied to throwsError
}