The Ruby implementation for the send method, which is used to send a method message to an object, works like this:
class Car
def start
puts "vroom"
end
private
def engine_temp
puts "Just Right"
end
end
@car = Car.new
@car.start # output: vroom
@car.send(:start) # output: vroom
That’s the basics, an additional piece of important information is that send will allow you you send in messages to PRIVATE methods, not just public ones.
@car.engine_temp # This doesn't work, it will raise an exception
@car.send(:engine_temp) # output: Just Right
As for what your specific send call will do, more than likely there is a def method_missing in the Performer class that is setup to catch that and perform some action.