inline fun <T> nullableContainer(iterable: Iterable<T>): Iterable<T?> (source)
Turns an Iterable into an iterable with a nullable element type.
Intended to be used in conjunction with platform types
such as Iterable<String!> or in other words, when you deal with Java and you want to turn a platform type into a nullable type.
Basically it is a replacement for cast but without introducing one explicitly (we only give an additional hint to the
compiler that we expect a nullable type and not a non-nullable one). For instance, instead of writing
getPersons() as Iterable<String?> you can write nullableContainer(getPersons())
inline fun <T> nullableContainer(arr: Array<out T>): Array<out T?> (source)
Turns an Array into an array with a nullable element type.
Intended to be used in conjunction with platform types
such as Array<String!> or in other words, when you deal with Java and you want to turn a platform type into a nullable type.
Basically it is a replacement for cast but without introducing one explicitly (we only give an additional hint to the
compiler that we expect a nullable type and not a non-nullable one). For instance, instead of writing
getPersons() as Array<String?> you can write nullableContainer(getPersons())