Bus Ride, code snippet 07

busride_code_snippet_07.go

// UpdatePassengers calls function visitor for each Passenger on the bus. Passengers are passed by reference and may be modified.
func (b *Bus) UpdatePassengers(visitor func(*Passenger)) {
	ps := make(map[string]Passenger, len(b.passengers))
	for ssn, p := range b.passengers {
		visitor(&p)
		ps[ssn] = p
	}
	b.passengers = ps
}