Efficient and Insightful GeneralizationHow OCaml type checker works -- or what polymorphism and garbage collection have in common There is more to Hindley-Milner type inference than the Algorithm W. In 1988, Didier Rémy was looking to speed up the type inference in Caml and discovered an elegant method of type generalization. Not only it is fast, avoiding scanning the type environment. It smoothly extends to catching of locally-declare
