enum LoginStatus {

  Success(String),

  Error(String),

}

​

fn main() {

  let result1 = LoginStatus::Success(String::from("Welcome, John!"));

  let result2 = LoginStatus::Error(String::from("Incorrect password"));

​

  match result1 {

    LoginStatus::Success(message) => println!("Success: {}", message),

    LoginStatus::Error(message) => println!("Error: {}", message),

  }

}