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Recursive type parameters in kotlin

I want to write something like that in Kotlin.

open class View<P> where P:Presenter<out _this_class_> {
    val presenter: P = ...
}

open class Presenter<V> where V: View<out _this_class_> {
    val view: V = ...
}

How I can properly do that?

over 4 years ago · Santiago Trujillo
1 answers
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0

The standard way (called F-bounded polymorphism) is

open class View<V: View<V, P>, P: Presenter<out V>> { ... }

It may make more sense to put out elsewhere here, depending on the specifics:

open class View<out V: View<V, P>, out P: Presenter<V>> { ... }
over 4 years ago · Santiago Trujillo Report
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