/// Abstraction that tells if a local protocol instance is a client or a server
pub trait Role {
/// See [`RoleTy`].
const TY: RoleTy;
}
/// Local instance is a client, i.e., opens connections.
#[derive(Debug)]
pub struct Client;
impl Role for Client {
const TY: RoleTy = RoleTy::Client;
}
/// Local instance is a server, i.e., listens for connections.
#[derive(Debug)]
pub struct Server;
impl Role for Server {
const TY: RoleTy = RoleTy::Server;
}
/// Represents the type of role a local protocol instance fulfills.
#[derive(Debug, Eq, PartialEq)]
pub enum RoleTy {
/// The local instance is a client that opens connections.
Client,
/// The local instance is a server that listens for connections.
Server,
}