public static String GetSupervisorName(RegularPerson employee)
{
if (employee != null)
{
var supervisor = employee.ReportsTo;
if (supervisor != null)
{
var supervisorsSupervisor = supervisor.ReportsTo;
if (supervisorsSupervisor != null)
{
return(supervisorsSupervisor.Name);
}
else
{
return(null);
}
}
else
{
return(null);
}
}
else
{
return(null);
}
}
static void Main(string[] args)
{
Option <Person> personWithSupervisor = Some(new Person("Person",
Some(new Person("Persons's supervisor",
Some(new Person("Persons's supervisor's supervisor", None <Person>()))))));
Option <String> result = Person.GetSupervisorName(personWithSupervisor);
Console.WriteLine(result.GetOrElse("Person does not have a supervisor's supervisor."));
Option <Person> personWithoutSupervisor = Some(new Person("Person",
Some(new Person("Persons's supervisor", None <Person>()))));
Option <String> result2 = Person.GetSupervisorName(personWithoutSupervisor);
Console.WriteLine(result2.GetOrElse("Person does not have a supervisor's supervisor."));
RegularPerson regularPersonWithSupervisor = new RegularPerson("Person",
new RegularPerson("Persons's supervisor",
new RegularPerson("Persons's supervisor's supervisor", null)));
String result3 = RegularPerson.GetSupervisorName(regularPersonWithSupervisor);
Console.WriteLine(result3);
RegularPerson regularPersonWithoutSupervisor = new RegularPerson("Person",
new RegularPerson("Persons's supervisor", null));
String result4 = RegularPerson.GetSupervisorName(regularPersonWithoutSupervisor);
if (result4 == null)
{
Console.WriteLine("Person does not have a supervisor's supervisor.");
}
Option <String> result5 = Person.GetSupervisorName2(personWithSupervisor);
Console.WriteLine(result5.GetOrElse("Person does not have a supervisor's supervisor."));
Option <String> result6 = Person.GetSupervisorName2(personWithoutSupervisor);
Console.WriteLine(result6.GetOrElse("Person does not have a supervisor's supervisor."));
}
public RegularPerson(String name, RegularPerson reportsTo)
{
this.Name = name;
this.ReportsTo = reportsTo;
}
