Like what? I'm seeing that the Union is by-type and not by-name (such as C vs Rust enums). I didn't see good support for preventing null pointers, but maybe I m

Like what? I'm seeing that the Union is by-type and not by-name (such as C vs Rust enums). I didn't see good support for preventing null pointers, but maybe I missed that. And it wasn't clear if RAII works.