On: Rewrite It in Rails

[neonsunset]

> C# doesn’t support parameterised enums like typescript and rust do

To be fair, you rarely miss them with pattern matching and records. In a similar vein to a sibling comment:

    var animal = ...

    Console.WriteLine(animal switch {
        Animal.Dog(_, var cats) => $"Chased {cats} cats",
        Animal.Cat or Animal.Bat => "No cats chased",
        _ => "Unknown animal"
    });

    abstract record Animal(string Name) {
        public record Dog(string Name, int CatsChased): Animal(Name);
        public record Cat(string Name): Animal(Name);
        public record Bat(string Name): Animal(Name);
    }

There are many libraries to further enhance the experience, provide additional exhaustiveness analysis, etc.