Avoid slices without inner references

As we cannot express slices without inner references in bindings
wrappers.

Author: TheBlueMatt

lightning/src/blinded_path/payment.rs

@@ -95,7 +95,7 @@ impl BlindedPaymentPath {
 		// be in relation to a specific channel.
 		let htlc_maximum_msat = u64::max_value();
 		Self::new(
-			&[], payee_node_id, payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta,
+			Vec::new(), payee_node_id, payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta,
 			entropy_source, secp_ctx
 		)
 	}
@@ -108,7 +108,7 @@ impl BlindedPaymentPath {
 	/// * any unknown features are required in the provided [`ForwardTlvs`]
 	//  TODO: make all payloads the same size with padding + add dummy hops
 	pub fn new<ES: Deref, T: secp256k1::Signing + secp256k1::Verification>(
-		intermediate_nodes: &[PaymentForwardNode], payee_node_id: PublicKey,
+		intermediate_nodes: Vec<PaymentForwardNode>, payee_node_id: PublicKey,
 		payee_tlvs: ReceiveTlvs, htlc_maximum_msat: u64, min_final_cltv_expiry_delta: u16,
 		entropy_source: ES, secp_ctx: &Secp256k1<T>,
 	) -> Result<Self, ()> where ES::Target: EntropySource {
@@ -119,14 +119,14 @@ impl BlindedPaymentPath {
 		let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
 
 		let blinded_payinfo = compute_payinfo(
-			intermediate_nodes, &payee_tlvs.tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta
+			&intermediate_nodes, &payee_tlvs.tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta
 		)?;
 		Ok(Self {
 			inner_path: BlindedPath {
 				introduction_node,
 				blinding_point: PublicKey::from_secret_key(secp_ctx, &blinding_secret),
 				blinded_hops: blinded_hops(
-					secp_ctx, intermediate_nodes, payee_node_id, payee_tlvs, &blinding_secret
+					secp_ctx, &intermediate_nodes, payee_node_id, payee_tlvs, &blinding_secret
 				).map_err(|_| ())?,
 			},
 			payinfo: blinded_payinfo

lightning/src/ln/channelmanager.rs

@@ -5387,7 +5387,7 @@ where
 	/// [`ChannelUnavailable`]: APIError::ChannelUnavailable
 	/// [`APIMisuseError`]: APIError::APIMisuseError
 	pub fn update_partial_channel_config(
-		&self, counterparty_node_id: &PublicKey, channel_ids: &[ChannelId], config_update: &ChannelConfigUpdate,
+		&self, counterparty_node_id: &PublicKey, channel_ids: Vec<ChannelId>, config_update: &ChannelConfigUpdate,
 	) -> Result<(), APIError> {
 		if config_update.cltv_expiry_delta.map(|delta| delta < MIN_CLTV_EXPIRY_DELTA).unwrap_or(false) {
 			return Err(APIError::APIMisuseError {
@@ -5402,14 +5402,14 @@ where
 		let mut peer_state_lock = peer_state_mutex.lock().unwrap();
 		let peer_state = &mut *peer_state_lock;
 
-		for channel_id in channel_ids {
+		for channel_id in channel_ids.iter() {
 			if !peer_state.has_channel(channel_id) {
 				return Err(APIError::ChannelUnavailable {
 					err: format!("Channel with id {} not found for the passed counterparty node_id {}", channel_id, counterparty_node_id),
 				});
 			};
 		}
-		for channel_id in channel_ids {
+		for channel_id in channel_ids.iter() {
 			if let Some(channel_phase) = peer_state.channel_by_id.get_mut(channel_id) {
 				let mut config = channel_phase.context().config();
 				config.apply(config_update);
@@ -5464,7 +5464,7 @@ where
 	/// [`ChannelUnavailable`]: APIError::ChannelUnavailable
 	/// [`APIMisuseError`]: APIError::APIMisuseError
 	pub fn update_channel_config(
-		&self, counterparty_node_id: &PublicKey, channel_ids: &[ChannelId], config: &ChannelConfig,
+		&self, counterparty_node_id: &PublicKey, channel_ids: Vec<ChannelId>, config: &ChannelConfig,
 	) -> Result<(), APIError> {
 		return self.update_partial_channel_config(counterparty_node_id, channel_ids, &(*config).into());
 	}

lightning/src/routing/gossip.rs

@@ -98,7 +98,7 @@ impl NodeId {
 	}
 
 	/// Get the public key as an array from this NodeId
-	pub fn as_array(&self) -> &[u8; PUBLIC_KEY_SIZE] {
+	pub fn as_array(&self) -> &[u8; 33] {
 		&self.0
 	}
 

lightning/src/routing/router.rs

@@ -162,7 +162,7 @@ impl<G: Deref<Target = NetworkGraph<L>>, L: Deref, ES: Deref, S: Deref> Router f
 			})
 			.map(|forward_node| {
 				BlindedPaymentPath::new(
-					&[forward_node], recipient, tlvs.clone(), u64::MAX, MIN_FINAL_CLTV_EXPIRY_DELTA,
+					vec![forward_node], recipient, tlvs.clone(), u64::MAX, MIN_FINAL_CLTV_EXPIRY_DELTA,
 					&*self.entropy_source, secp_ctx
 				)
 			})
@@ -174,7 +174,7 @@ impl<G: Deref<Target = NetworkGraph<L>>, L: Deref, ES: Deref, S: Deref> Router f
 			_ => {
 				if network_graph.nodes().contains_key(&NodeId::from_pubkey(&recipient)) {
 					BlindedPaymentPath::new(
-						&[], recipient, tlvs, u64::MAX, MIN_FINAL_CLTV_EXPIRY_DELTA, &*self.entropy_source,
+						Vec::new(), recipient, tlvs, u64::MAX, MIN_FINAL_CLTV_EXPIRY_DELTA, &*self.entropy_source,
 						secp_ctx
 					).map(|path| vec![path])
 				} else {