lib/irb/cmd/fork.rb

   1 #
   2 #   fork.rb -
   3 #       $Release Version: 0.9.5 $
   4 #       $Revision: 11708 $
   5 #       $Date: 2007-02-12 15:01:19 -0800 (Mon, 12 Feb 2007) $
   6 #       by Keiju ISHITSUKA(keiju@ruby-lang.org)
   7 #
   8 # --
   9 #
  10 #
  11 #
  12
  13 @RCS_ID='-$Id: fork.rb 11708 2007-02-12 23:01:19Z shyouhei $-'
  14
  15
  16 module IRB
  17   module ExtendCommand
  18     class Fork<Nop
  19       def execute(&block)
  20         pid = send ExtendCommand.irb_original_method_name("fork")
  21         unless pid
  22           class<<self
  23             alias_method :exit, ExtendCommand.irb_original_method_name('exit')
  24           end
  25           if iterator?
  26             begin
  27               yield
  28             ensure
  29               exit
  30             end
  31           end
  32         end
  33         pid
  34       end
  35     end
  36   end
  37 end
  38
  39