Show HN: A Kotlin compiler written in Go, 10x faster than kotlinc

Category: devtools

Tags: kotlin, compiler, go, jvm, performance

Score: 8.5/10 (Innovation: 9, Technical: 10, Documentation: 9, Utility: 6)

A Kotlin-to-JVM compiler implemented in Go that achieves 10-16x speedups over kotlinc on real libraries while using a tenth of the memory, passing 95% of kotlinc's box tests and building libraries that pass their own test suites. The project is technically exceptional but remains a prototype lacking full language support, most diagnostics, incremental compilation, Gradle/IDE integration, and non-JVM targets.

Target audience: compiler engineers, backend Kotlin developers, build tooling developers, performance engineers

Repository: https://github.com/barteo/kotlin-compiler-go · Go · Apache-2.0

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