One reason the Visitor Pattern can feel confusing is because of double dispatch. So before we dive into the Visitor Pattern itself, let’s take a closer look at double dispatch—what it is, how it’s traditionally handled in single-dispatch languages, and how a few Kotlin language features can make it much simpler.
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👨🏽💻 Source code for today's video:
https://github.com/typealias-studios/video-2025-04-double-dispatch
📚 Chapters
00:00 Introduction
00:36 Dispatch and Multiple Dispatch
04:38 Simulating Double Dispatch in Kotlin
08:01 A Simpler Approach
09:48 Wrap-up
