impl Deref for EmptyNodeIdLookUp

[rust-lightning] / lightning / src / blinded_path / mod.rs

diff --git a/lightning/src/blinded_path/mod.rs b/lightning/src/blinded_path/mod.rs
index 07fa7b770249cae94e1ea18269b63805dc933f93..29caafa4a4fc3ef61bf524de1469c4edaba89f5e 100644 (file)
--- a/lightning/src/blinded_path/mod.rs
+++ b/lightning/src/blinded_path/mod.rs
@@ -14,6 +14,7 @@ pub(crate) mod message;
 pub(crate) mod utils;
 
 use bitcoin::secp256k1::{self, PublicKey, Secp256k1, SecretKey};
+use core::ops::Deref;
 
 use crate::ln::msgs::DecodeError;
 use crate::offers::invoice::BlindedPayInfo;
@@ -24,6 +25,17 @@ use crate::util::ser::{Readable, Writeable, Writer};
 use crate::io;
 use crate::prelude::*;
 
+/// The next hop to forward an onion message along its path.
+///
+/// Note that payment blinded paths always specify their next hop using an explicit node id.
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+pub enum NextMessageHop {
+       /// The node id of the next hop.
+       NodeId(PublicKey),
+       /// The short channel id leading to the next hop.
+       ShortChannelId(u64),
+}
+
 /// Onion messages and payments can be sent and received to blinded paths, which serve to hide the
 /// identity of the recipient.
 #[derive(Clone, Debug, Hash, PartialEq, Eq)]
@@ -89,6 +101,11 @@ impl NodeIdLookUp for EmptyNodeIdLookUp {
        }
 }
 
+impl Deref for EmptyNodeIdLookUp {
+       type Target = EmptyNodeIdLookUp;
+       fn deref(&self) -> &Self { self }
+}
+
 /// An encrypted payload and node id corresponding to a hop in a payment or onion message path, to
 /// be encoded in the sender's onion packet. These hops cannot be identified by outside observers
 /// and thus can be used to hide the identity of the recipient.