Add Display trait on network structs for routing bug track

[rust-lightning] / src / util / macro_logger.rs

diff --git a/src/util/macro_logger.rs b/src/util/macro_logger.rs
index 19f0294f9c220a52942a48ee48f58238c0fe52ba..465126fa25062fd103a630b167c927c2e6fafe47 100644 (file)
--- a/src/util/macro_logger.rs
+++ b/src/util/macro_logger.rs
@@ -3,6 +3,8 @@ use chain::transaction::OutPoint;
 use bitcoin::util::hash::Sha256dHash;
 use secp256k1::key::PublicKey;
 
+use ln::router::Route;
+
 use std;
 
 pub(crate) struct DebugPubKey<'a>(pub &'a PublicKey);
@@ -50,6 +52,23 @@ macro_rules! log_funding_channel_id {
        }
 }
 
+#[allow(dead_code)]
+pub(crate) struct DebugRoute<'a>(pub &'a Route);
+impl<'a> std::fmt::Display for DebugRoute<'a> {
+       fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+               for (i,h) in self.0.hops.iter().enumerate() {
+                       write!(f, "Hop {}\n pubkey {}\n short_channel_id {}\n fee_msat {}\n cltv_expiry_delta {}\n\n", i, log_pubkey!(h.pubkey), h.short_channel_id, h.fee_msat, h.cltv_expiry_delta)?;
+               }
+               Ok(())
+       }
+}
+#[allow(unused_macros)]
+macro_rules! log_route {
+       ($obj: expr) => {
+               ::util::macro_logger::DebugRoute(&$obj)
+       }
+}
+
 macro_rules! log_internal {
        ($self: ident, $lvl:expr, $($arg:tt)+) => (
                &$self.logger.log(&::util::logger::Record::new($lvl, format_args!($($arg)+), module_path!(), file!(), line!()));