A Look at Kotlin's Delegation
A look at the Delegation Pattern in Kotlin.
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Kotlin offers many exciting features. In general, developers tend to cite null safety as their favorite. For me, it's function extensions. But delegation comes a close second.
The Delegation Pattern
GoF book:
Delegation is a way to make composition as powerful for reuse as inheritance [Lie86, JZ91]. In delegation,
two objects are involved in handling a request: a receiving object delegates operations to its
delegate. This is analogous to subclasses deferring requests to parent classes. But with inheritance, an inherited operation can always refer to the receiving object through the