From dc4af28759be51af8d2471074d036ef7d1a9d5ab Mon Sep 17 00:00:00 2001
From: Matt Corallo <git@bluematt.me>
Date: Thu, 16 Aug 2018 22:30:03 -0400
Subject: [PATCH] Add some useful delayed-formatting formatters to macro_logger

---
 src/util/macro_logger.rs | 52 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/src/util/macro_logger.rs b/src/util/macro_logger.rs
index d99157491..fd9a61b39 100644
--- a/src/util/macro_logger.rs
+++ b/src/util/macro_logger.rs
@@ -1,3 +1,55 @@
+use chain::transaction::OutPoint;
+
+use bitcoin::util::hash::Sha256dHash;
+use secp256k1::key::PublicKey;
+
+use std;
+
+pub(crate) struct DebugPubKey<'a>(pub &'a PublicKey);
+impl<'a> std::fmt::Display for DebugPubKey<'a> {
+	fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+		for i in self.0.serialize().iter() {
+			write!(f, "{:02x}", i)?;
+		}
+		Ok(())
+	}
+}
+macro_rules! log_pubkey {
+	($obj: expr) => {
+		::util::macro_logger::DebugPubKey(&$obj)
+	}
+}
+
+pub(crate) struct DebugBytes<'a>(pub &'a [u8; 32]);
+impl<'a> std::fmt::Display for DebugBytes<'a> {
+	fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+		for i in self.0 {
+			write!(f, "{:02x}", i)?;
+		}
+		Ok(())
+	}
+}
+macro_rules! log_bytes {
+	($obj: expr) => {
+		::util::macro_logger::DebugBytes(&$obj)
+	}
+}
+
+pub(crate) struct DebugFundingChannelId<'a>(pub &'a Sha256dHash, pub u16);
+impl<'a> std::fmt::Display for DebugFundingChannelId<'a> {
+	fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+		for i in OutPoint::new(self.0.clone(), self.1).to_channel_id().iter() {
+			write!(f, "{:02x}", i)?;
+		}
+		Ok(())
+	}
+}
+macro_rules! log_funding_channel_id {
+	($funding_txid: expr, $funding_txo: expr) => {
+		::util::macro_logger::DebugFundingChannelId(&$funding_txid, $funding_txo)
+	}
+}
+
 macro_rules! log_internal {
 	($self: ident, $lvl:expr, $($arg:tt)+) => (
 		&$self.logger.log(&Record::new($lvl, format_args!($($arg)+), module_path!(), file!(), line!()));
-- 
2.39.5