Kotlin - Rust interop

This repository contains some sample code for using Rust together with Kotlin.

Contents

The app runs a simple micro-benchmark between Kotlin and Rust. It consists of sorting a random string lexicographically.

Both the Kotlin and Rust implementation are using functional-programming, with Kotlin using streams and Rust using iterators.

Dependencies

You will need:

a Java runtime (such as Oracle's JRE on Windows or OpenJDK on Linux)
Kotlin
Rust
GNU Make

Building / Running

Just run make.

Results

Rust is consistently 3-5 times faster than the equivalent Kotlin code.

Support libraries

The jni-rs crate is used in Rust to access JVM types, and a simple Kotlin app loads and runs the Rust code.