Companion for paritytech/parity-bridges-common#1657

modules/grandpa/src/lib.rs

@@ -547,6 +547,13 @@ pub mod pallet {
 }
 pub use pallet::*;
 
+impl<T: Config<I>, I: 'static> Pallet<T, I> {
+	/// Get the best finalized block number.
+	pub fn best_finalized_number() -> Option<BridgedBlockNumber<T, I>> {
+		BestFinalized::<T, I>::get().map(|id| id.number())
+	}
+}
+
 /// Bridge GRANDPA pallet as header chain.
 pub type GrandpaChainHeaders<T, I> = Pallet<T, I>;
 

modules/messages/src/lib.rs

@@ -175,10 +175,10 @@ pub mod pallet {
 	}
 
 	/// Shortcut to messages proof type for Config.
-	type MessagesProofOf<T, I> =
+	pub type MessagesProofOf<T, I> =
 		<<T as Config<I>>::SourceHeaderChain as SourceHeaderChain>::MessagesProof;
 	/// Shortcut to messages delivery proof type for Config.
-	type MessagesDeliveryProofOf<T, I> =
+	pub type MessagesDeliveryProofOf<T, I> =
 		<<T as Config<I>>::TargetHeaderChain as TargetHeaderChain<
 			<T as Config<I>>::OutboundPayload,
 			<T as frame_system::Config>::AccountId,
@@ -643,6 +643,11 @@ pub mod pallet {
 				dispatch_weight: T::MessageDispatch::dispatch_weight(&mut dispatch_message),
 			}
 		}
+
+		/// Return inbound lane data.
+		pub fn inbound_lane_data(lane: LaneId) -> InboundLaneData<T::InboundRelayer> {
+			InboundLanes::<T, I>::get(lane).0
+		}
 	}
 }
 pub use pallet::*;

modules/parachains/src/lib.rs

@@ -408,6 +408,11 @@ pub mod pallet {
 	}
 
 	impl<T: Config<I>, I: 'static> Pallet<T, I> {
+		/// Get stored parachain info.
+		pub fn best_parachain_info(parachain: ParaId) -> Option<ParaInfo> {
+			ParasInfo::<T, I>::get(parachain)
+		}
+
 		/// Get best finalized header of the given parachain.
 		pub fn best_parachain_head(parachain: ParaId) -> Option<ParaHead> {
 			let best_para_head_hash = ParasInfo::<T, I>::get(parachain)?.best_head_hash.head_hash;