Comment by viega

By the way, the run-time type checking is one of the use cases where I really would like to have a tractable interface for hashing at compile time, preventing unbounded strcmps, and turning them into an integer compare (without having to manage caching such things at runtime).

Same thing would be for making it much easier to statically lay out fixed caches implemented via hashing, instead of inserting into them at start-up, etc.