Maybe I need to read it again, but I remember the Rust book saying… you can use enums like C, but what if instead you used them in this more concise way? (Match

Maybe I need to read it again, but I remember the Rust book saying… you can use enums like C, but what if instead you used them in this more concise way? (Match on members, without the container.) Ok, was able to proceed but don’t feel like I understand what they really are.