Your other comment is irrelevant in this subthread, because neither RV-Match nor Astree are coding standards. Furthermore, there's zero proof that e.g. macros,

Your other comment is irrelevant in this subthread, because neither RV-Match nor Astree are coding standards. Furthermore, there's zero proof that e.g. macros, match or variant types have any impact on code quality. Bringing the module system into this is really grasping at straws.