f improve legibility as arik suggested

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -3502,48 +3502,52 @@ impl<Signer: Sign> Channel<Signer> {
 	}
 
 	fn check_get_funding_locked(&mut self, height: u32) -> Option<msgs::FundingLocked> {
-		if self.funding_tx_confirmation_height > 0 {
-			let funding_tx_confirmations = height as i64 - self.funding_tx_confirmation_height as i64 + 1;
-			if funding_tx_confirmations <= 0 {
-				self.funding_tx_confirmation_height = 0;
-			}
+		if self.funding_tx_confirmation_height <= 0 {
+			return None;
+		}
 
-			if funding_tx_confirmations >= self.minimum_depth as i64 {
-				let non_shutdown_state = self.channel_state & (!MULTI_STATE_FLAGS);
-				let need_commitment_update = if non_shutdown_state == ChannelState::FundingSent as u32 {
-					self.channel_state |= ChannelState::OurFundingLocked as u32;
-					true
-				} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) {
-					self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
-					self.update_time_counter += 1;
-					true
-				} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
-					// We got a reorg but not enough to trigger a force close, just update
-					// funding_tx_confirmed_in and return.
-					false
-				} else if self.channel_state < ChannelState::ChannelFunded as u32 {
-					panic!("Started confirming a channel in a state pre-FundingSent?: {}", self.channel_state);
-				} else {
-					// We got a reorg but not enough to trigger a force close, just update
-					// funding_tx_confirmed_in and return.
-					false
-				};
+		let funding_tx_confirmations = height as i64 - self.funding_tx_confirmation_height as i64 + 1;
+		if funding_tx_confirmations <= 0 {
+			self.funding_tx_confirmation_height = 0;
+		}
 
-				//TODO: Note that this must be a duplicate of the previous commitment point they sent us,
-				//as otherwise we will have a commitment transaction that they can't revoke (well, kinda,
-				//they can by sending two revoke_and_acks back-to-back, but not really). This appears to be
-				//a protocol oversight, but I assume I'm just missing something.
-				if need_commitment_update {
-					if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
-						let next_per_commitment_point = self.holder_signer.get_per_commitment_point(self.cur_holder_commitment_transaction_number, &self.secp_ctx);
-						return Some(msgs::FundingLocked {
-							channel_id: self.channel_id,
-							next_per_commitment_point,
-						});
-					} else {
-						self.monitor_pending_funding_locked = true;
-					}
-				}
+		if funding_tx_confirmations < self.minimum_depth as i64 {
+			return None;
+		}
+
+		let non_shutdown_state = self.channel_state & (!MULTI_STATE_FLAGS);
+		let need_commitment_update = if non_shutdown_state == ChannelState::FundingSent as u32 {
+			self.channel_state |= ChannelState::OurFundingLocked as u32;
+			true
+		} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::TheirFundingLocked as u32) {
+			self.channel_state = ChannelState::ChannelFunded as u32 | (self.channel_state & MULTI_STATE_FLAGS);
+			self.update_time_counter += 1;
+			true
+		} else if non_shutdown_state == (ChannelState::FundingSent as u32 | ChannelState::OurFundingLocked as u32) {
+			// We got a reorg but not enough to trigger a force close, just update
+			// funding_tx_confirmed_in and return.
+			false
+		} else if self.channel_state < ChannelState::ChannelFunded as u32 {
+			panic!("Started confirming a channel in a state pre-FundingSent?: {}", self.channel_state);
+		} else {
+			// We got a reorg but not enough to trigger a force close, just update
+			// funding_tx_confirmed_in and return.
+			false
+		};
+
+		//TODO: Note that this must be a duplicate of the previous commitment point they sent us,
+		//as otherwise we will have a commitment transaction that they can't revoke (well, kinda,
+		//they can by sending two revoke_and_acks back-to-back, but not really). This appears to be
+		//a protocol oversight, but I assume I'm just missing something.
+		if need_commitment_update {
+			if self.channel_state & (ChannelState::MonitorUpdateFailed as u32) == 0 {
+				let next_per_commitment_point = self.holder_signer.get_per_commitment_point(self.cur_holder_commitment_transaction_number, &self.secp_ctx);
+				return Some(msgs::FundingLocked {
+					channel_id: self.channel_id,
+					next_per_commitment_point,
+				});
+			} else {
+				self.monitor_pending_funding_locked = true;
 			}
 		}
 		None