“macros”

Dart Macros: Compile-Time Code Generation Comes to the Language

Dart macros promised in-language compile-time code generation with deep semantic introspection. The program was paused in January 2025 over hygiene, analyzer integration, and compile-time performance. This post explains what macros were designed to do, why they did not ship, what the 2026 roadmap replaces them with, and how to keep using build_runner today.