# File lib/eventmachine.rb, line 1108
1108:   def self.next_tick pr=nil, &block
1109:     raise "no argument or block given" unless ((pr && pr.respond_to?(:call)) or block)
1110:     (@next_tick_queue ||= []) << ( pr || block )
1111:     signal_loopbreak if reactor_running?
1112: ??
1113:   end