Search code examples
iosswiftgenericsobjectmapper

Pass in class type to be used with Object Mapper

I am using the object mapper for swift and have run into a problem.

I have a API class which does a call to the server and responds with a json response.

Now when i call the dataTask function in this API class, i want to pass through the class type i want the json response to be mapped to using Object mapper. 

func dataTask(method: String, type: AnyClass) {

    Mapper<AnyClass>().map(response)

}

I am not sure how I can pass in the class to be used with the mapper, I have tried generics but not sure if i implemented it correctly or not.

func dataTask<T>(method: String, type: T.type) {
}

Any help would be appreciated.

Thanks

Solution

  • You need a function that's generic over any Mappable type. Essentially, this will produce one version of dataTask(method:_:) for every type T you use it with, which will call the appropriate version of Mapper().

    func dataTask<T: Mappable>(method: String, _: T.Type) {
    Mapper<T>().map(response)
}

    Note the second argument, in order to make it as a generic type its needed to add ".Type".