f - debug_assert

Author: jkczyz

lightning/src/ln/channel.rs

@@ -1427,7 +1427,7 @@ impl<SP: Deref> Channel<SP> where
 		L::Target: Logger
 	{
 		let phase = core::mem::replace(&mut self.phase, ChannelPhase::Undefined);
-		if let ChannelPhase::UnfundedV2(chan) = phase {
+		let result = if let ChannelPhase::UnfundedV2(chan) = phase {
 			let logger = WithChannelContext::from(logger, &chan.context, None);
 			match chan.funding_tx_constructed(signing_session, &&logger) {
 				Ok((chan, commitment_signed, event)) => {
@@ -1442,7 +1442,10 @@ impl<SP: Deref> Channel<SP> where
 		} else {
 			self.phase = phase;
 			Err(ChannelError::Warn("Got a tx_complete message with no interactive transaction construction expected or in-progress".to_owned()))
-		}
+		};
+
+		debug_assert!(!matches!(self.phase, ChannelPhase::Undefined));
+		result
 	}
 }