# File lib/eventmachine.rb, line 681
681:   def EventMachine::connect server, port=nil, handler=nil, *args
682:     begin
683:       port = Integer(port)
684:     rescue ArgumentError, TypeError
685:       # there was no port, so server must be a unix domain socket
686:       # the port argument is actually the handler, and the handler is one of the args
687:       args.unshift handler if handler
688:       handler = port
689:       port = nil
690:     end if port
691: 
692:     klass = if (handler and handler.is_a?(Class))
693:       raise ArgumentError, 'must provide module or subclass of EventMachine::Connection' unless Connection > handler
694:       handler
695:     else
696:       Class.new( Connection ) {handler and include handler}
697:     end
698: 
699:     arity = klass.instance_method(:initialize).arity
700:     expected = arity >= 0 ? arity : -(arity + 1)
701:     if (arity >= 0 and args.size != expected) or (arity < 0 and args.size < expected)
702:       raise ArgumentError, "wrong number of arguments for #{klass}#initialize (#{args.size} for #{expected})"
703:     end
704: 
705:     s = if port
706:           connect_server server, port
707:         else
708:           connect_unix_server server
709:         end
710: 
711:     c = klass.new s, *args
712:     @conns[s] = c
713:     block_given? and yield c
714:     c
715:   end