Aborts the current expression call
Aborts the current expression call and returns to the top level prompt/browser without signaling a condition.
## Default S3 method: abort(..., call.=TRUE, domain=NULL)
... |
(optional) Objects coerced to |
call. |
If |
domain |
Used to translate the message (see |
There are still cases where one can "catch" the abort and undo it, cf. [1].
Returns nothing.
Henrik Bengtsson
[1] R-devel thread ”, Sept 11, 2012,
https://stat.ethz.ch/pipermail/r-devel/2012-September/064838.html.
throw().
stop().
Internally, invokeRestart()("abort") is utilized.
## Not run:
foo <- function() {
cat("foo()...\n")
on.exit(cat("foo()...done\n"))
tryCatch({
stop("Woops!")
}, error = function(ex) {
cat("An error was caught: ", ex$message, "\n", sep="")
})
cat("Continuing...\n")
}
bar <- function() {
cat("bar()...\n")
on.exit(cat("bar()...done\n"))
tryCatch({
abort("Woops!")
}, error = function(ex) {
cat("An error was caught: ", ex$message, "\n", sep="")
})
cat("This message will never be displayed...\n")
}
# An error generated by stop() can be caught
foo()
# ...which is not possible when using abort()
bar()
# This expression is never reached
cat("This line will never be outputted.\n")
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.