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kotlinlang

Wanted to ask on a possibility of introducing fields in interfaces.
The main reason against having non-abstract fields (aside the compatibility with java8) always was the inability to have initializators for interfaces.
But with `lateinit` it is possible to introduce syntax `interface A {lateinit val x: Int = f()}` with semantics that `f()` is called only on the first get-access.
Fields in interfaces exist in Scala and  are very useful for local caching, so when your non-abstract interface method needs caching for speeding up, you may introduce a private field for that.
PS I may misuse `lateinit`  in this context, it just gave me the idea