Role0 constant

Author: stanislav-tkach

rust/rbac-registration/src/cardano/cip509/mod.rs

@@ -151,6 +151,7 @@ impl Cip509 {
         let mut is_valid_payment_key = true;
         let mut is_valid_signing_key = true;
         // Validate only role 0
+        // TODO: FIXME: Use role0 constant.
         for role in &self.metadata.role_set {
             if role.role_number == 0 {
                 is_valid_stake_public_key =

rust/rbac-registration/src/cardano/cip509/rbac/role_number.rs

@@ -4,6 +4,11 @@
 #[derive(Debug, Eq, PartialEq, Copy, Clone, Hash)]
 pub struct RoleNumber(u8);
 
+impl RoleNumber {
+    /// A number of the `Role0` role.
+    const Role0: Self = RoleNumber(0);
+}
+
 impl From<u8> for RoleNumber {
     fn from(value: u8) -> Self {
         Self(value)