> C# has done a better job of keeping up, in my opinion, but even it still lacks extremely useful features like proper Sum Types Does type pattern matching com

> C# has done a better job of keeping up, in my opinion, but even it still lacks extremely useful features like proper Sum Types Does type pattern matching comes close? https://dotnetfiddle.net/Oz2Qyd https://dotnetfiddle.net/Oz2Qyd Yeah, it doesn't prevent passing unexpected type as object to Print func and getting runtime exceptions. And returning "object" type isn't helpful if we want to prevent runtime errors. But then again, it can be written to spit out compile time errors: https://dotnetfiddle.net/XfKVaa https://dotnetfiddle.net/XfKVaa