Make array type from type

Question

I am getting a lot of data from my server.

To serialize it I use ModelMapper. I have lots of Mappable objects, so I need a function that would be able to map any kind of mappable data. Something like this:

func serializeData(of type: Mappable.Type) -> [Mappable]? {
     return try? response?.map(to: [type].self)
}

My issue is that map(:) method requires [Mappable].Type as input. [type].self however is [Mappable.Type]. I am getting lost here. Please help

vadian · Accepted Answer · 2018-05-04 18:02:41Z

5

Passing the type as foo.Type is a very objective-c-ish pattern.

In Swift I'd prefer a generic solution, something like

func serializeData<T : Mappable>() -> [T]? {
     return try? response?.map(to: [T].self)
}

or still swiftier

func serializeData<T : Mappable>() throws -> [T] {
     return try response?.map(to: [T].self) ?? []
}

answered May 4, 2018 at 18:02

vadian

286k32 gold badges378 silver badges379 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

D. Greg Over a year ago

I'm always impressed with your responses. Do you have a Swift blog or anything similar?

vadian Over a year ago

@D.Greg Thanks. No, I haven't.

Collectives™ on Stack Overflow

Make array type from type

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related