event registration and triggering ruby

events.rb

@@events = {}

def addEvent( event, type, function )
  @@events[event] = {}
	@@events[event]["type"] = type
	@@events[event]["function"] = function 
end

addEvent("compass", String, lambda{|msg|
	puts "#{msg} world"
})

msg = "hello"
event = "compass"
type = String

if (@@events.has_key? event) and (msg.is_a? @@events[event]["type"])
	@@events["compass"]["function"].call msg
end