class RSpec::Core::Runner

def self.autorun
  return if autorun_disabled? || installed_at_exit? || running_in_drb?
  at_exit do
    # Don't bother running any specs and just let the program terminate
    # if we got here due to an unrescued exception (anything other than
    # SystemExit, which is raised when somebody calls Kernel#exit).
    next unless $!.nil? || $!.kind_of?(SystemExit)
    # We got here because either the end of the program was reached or
    # somebody called Kernel#exit.  Run the specs and then override any
    # existing exit status with RSpec's exit status if any specs failed.
    status = run(ARGV, $stderr, $stdout).to_i
    exit status if status != 0
  end
  @installed_at_exit = true
end