Is SystemExit a special kind of Exception?

Question

How does SystemExit behave differently from other Exceptions? I think I understand some of the reasoning about why it wouldn\'t be good t

Answer 1

Simple example:

begin
  exit
  puts "never get here"
rescue SystemExit
  puts "rescued a SystemExit exception"
end

puts "after begin block"

The exit status / success?, etc. can be read too:

begin
  exit 1
rescue SystemExit => e
  puts "Success? #{e.success?}" # Success? false
end

begin
  exit
rescue SystemExit => e
  puts "Success? #{e.success?}" # Success? true
end

Full list of methods: [:status, :success?, :exception, :message, :backtrace, :backtrace_locations, :set_backtrace, :cause]