Kotlin Under the Covers

Explore the inner workings of Kotlin in this 35-minute conference talk from Devoxx Poland 2019. Delve into powerful language features that may involve significant behind-the-scenes work, including object allocation and reflection. Learn about tools and techniques to discover hidden complexities in Kotlin code. Examine examples of primitive types, bytecode, memory profiling, lazy properties, unsigned numbers, ranges, inline classes, arrays, extension functions, default parameters, and coroutines. Gain insights into when these features matter for performance and how to effectively use Kotlin's capabilities while being aware of their implications.

Intro
Kotlin is Awesome
Kotlin is Magical
The Tools
Example: Primitive Types
Kotlin Bytecode
Bytecode Decompiler
Memory Profiler
Interlude When 10001 != 10001
Example: when
Example: Lazy Properties
Example: Unsigned
Example: Ranges
Example: Inline classes
Example: Arrays Java
Example: Extension Functions
Example: Default Parameters
Example: Coroutines
Should You Care?