Guix

A comprehensive toolbox for ppx development. It features:

• an OCaml AST / parser / pretty-printer snapshot, to create a full frontend independent of the version of OCaml;

• a library for library for ppx rewriters in general, and type-driven code generators in particular;

• a feature-full driver for OCaml AST transformers;

• a quotation mechanism allowing to write values representing the OCaml AST in the OCaml syntax;

• a generator of open recursion classes from type definitions.