How we completely rewrote our static code analyzer for Kotlin

Marharyta Nedzelska discusses the challenges and process behind completely rewriting Sonar's static code analyzer for Kotlin. The talk delves into the technical decisions, architectural changes, and the lessons learned from moving from a cross-language AST approach to a Kotlin-specific one utilizing PSI. It covers issues encountered with nullability, naming conventions in the compiler API, handling compiler diagnostics, and performance optimizations, particularly around the 'commented out code' rule. The presentation highlights the importance of community feedback and the ongoing evolution of static analysis tools for languages like Kotlin.