We got here because adding library features is a lot easier and less risky than adding language features. Work on pattern matching [1] is ongoing, but the bar f

We got here because adding library features is a lot easier and less risky than adding language features. Work on pattern matching [1] is ongoing, but the bar for entry for a language feature is much higher and as such takes a longer time. 1. http://wg21.link/p1371 http://wg21.link/p1371