On Sunday, 6 May 2018 at 19:18:02 UTC, Paul Backus wrote: > SumType is a generic sum type for modern D. It is meant as an > alternative to `std.variant.Algebraic`. Someone posted a question about this on our subreddit: https://www.reddit.com/r/d_language/comments/8iz9hw/sumtype_03_sum_type_with_pattern_matching/