flushThenExit function

Future<void> flushThenExit(
  1. int status
)

Flushes the stdout and stderr streams, then exits the program with the given status code.

This returns a Future that will never complete, since the program will have exited already. This is useful to prevent Future chains from proceeding after you've decided to exit.

Implementation

Future<void> flushThenExit(int status) {
  return Future.wait<void>([stdout.close(), stderr.close()])
      .then<void>((_) => exit(status));
}