Type alias for enum

Question

Is there a way to make the code below work? That is, export an enum under a type alias, and allow access to the variants under the new name?

enum One { A, B, C }

type Two = One;

fn main() {
    // error: no associated item named `B` found for type `One` in the current scope
    let b = Two::B;
}

Answer 1

I don't think type aliases allow doing what you want, but you can rename the enum type in a use statement:

enum One { A, B, C }

fn main() {
    use One as Two;
    let b = Two::B;
}

You can use this in combination with pub use to re-export types under a different identifier:

mod foo {
    pub enum One { A, B, C }
}

mod bar {
    pub use foo::One as Two;
}

fn main() {
    use bar::Two;
    let b = Two::B;
}