Generics call with Type T in Swift

Question

In my application I want to create an generic method which creates an array of object depening on the given type T.

I created the following function:

fun         


        

Answer 1

Working version of the code in the question ( second part )

• Init is required because a function returns a generic person Type ( newPerson(as person:T) -> T )

• I've replaced the class methods func getWorkingHours() by var workingHours { get }.. It works equally, in a more 'swifty' way.

• getWorkingHours() returns hours, as the name indicates, not a Person..

class Person {
    required init() {}
    var workingHours: Float { get { return 40 } }
}

class Boss : Person {
    override var workingHours: Float { get { return 100 } }
}

class Worker : Person {
    override var workingHours: Float { get { return 42 } }
}

func getWorkingHours(_ person: T) -> Float {
    return person.workingHours
}

func newPerson(as person: T) -> T {
    return T()
}

// -----------------------------------------------

let worker = Worker()
let boss = Boss()

print( getWorkingHours(worker) ) // prints 42.0
print( getWorkingHours(boss) ) // prints 100.0

let person = newPersonOfSameClass(as: worker)

print( getWorkingHours(person) ) // prints 42.0

Hope it helps.. This code is ready for copy/paste in playground.