src/user/id.rs


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use crate::login;

// Stable identifier for a User. Prefixed with `U`. Users created before March, 2025 may have an `L`
// prefix, instead.
pub type Id = crate::id::Id<User>;

// Login IDs and user IDs are typewise-distinct as they identify things in different namespaces, but
// in practice a login and its associated user _must_ have IDs that encode to the same value. The
// two ID types are made interconvertible (via `From`) for this purpose.
impl From<login::Id> for Id {
    fn from(login: login::Id) -> Self {
        Self::from(String::from(login))
    }
}

impl PartialEq<login::Id> for Id {
    fn eq(&self, other: &login::Id) -> bool {
        self.as_str().eq(other.as_str())
    }
}

#[derive(Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct User;

impl crate::id::Prefix for User {
    fn prefix(&self) -> &'static str {
        "U"
    }
}