class SystemExit < Exception

Raised by exit and abort to end the program, as in Ruby. Outside StandardError, so a plain rescue lets it through: the ensure clauses it leaves run, and one nothing rescues ends the program with #status (from any task) after the at_exit blocks. rescue SystemExit (or Exception) catches it; exit! ends the program without it.

status = begin
  exit 3
rescue SystemExit => e
  e.status
end
status   # => 3

<prelude>:5372

Class methods

Methods