On Thursday, 18 March 2021 at 18:42:32 UTC, Oleg B wrote: > > but read-only tag (kind, type index) is key feature in chouse > between sumtype and other for me, and I hope it will be added > before next compiler release... https://github.com/pbackus/sumtype/pull/57 https://github.com/dlang/phobos/pull/7886