I have a class that is conforming to a protocol with a method that requires a
specific return type.
In case I want to return a subclass of the return type I am forced to use an
associatedtype that feels like a hack.
As an example:
protocol MyShapeProtocol {
func make() -> Shape?
}
class Circle : Shape {}
class CircleMaker : MyShapeProtocol{
func make() -> Circle? {
return Circle()
}
}
This will not work.
For that to work I’ll need to use toe associatedtype “hack”:
protocol MyShapeProtocol {
associatedtype ShapeReturnType : Shape
func make() -> ShapeReturnType?
}
class Circle : Shape {}
class CircleMaker : MyShapeProtocol{
func make() -> Circle? {
return Circle()
}
}
Is there a real value in adding the associatedtype line?_______________________________________________
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