Few typos and clippy fixes (paritytech#1362)

* fix typos

* clippy fixes

bridges/bin/runtime-common/src/messages.rs

@@ -327,18 +327,16 @@ pub mod source {
 				frame_system::RawOrigin<AccountIdOf<ThisChain<B>>>,
 				OriginOf<ThisChain<B>>,
 			> = submitter.clone().into();
-			match raw_origin_or_err {
-				Ok(raw_origin) =>
-					pallet_bridge_dispatch::verify_message_origin(&raw_origin, payload)
-						.map(drop)
-						.map_err(|_| BAD_ORIGIN)?,
-				Err(_) => {
-					// so what it means that we've failed to convert origin to the
-					// `frame_system::RawOrigin`? now it means that the custom pallet origin has
-					// been used to send the message. Do we need to verify it? The answer is no,
-					// because pallet may craft any origin (e.g. root) && we can't verify whether it
-					// is valid, or not.
-				},
+			if let Ok(raw_origin) = raw_origin_or_err {
+				pallet_bridge_dispatch::verify_message_origin(&raw_origin, payload)
+					.map(drop)
+					.map_err(|_| BAD_ORIGIN)?;
+			} else {
+				// so what it means that we've failed to convert origin to the
+				// `frame_system::RawOrigin`? now it means that the custom pallet origin has
+				// been used to send the message. Do we need to verify it? The answer is no,
+				// because pallet may craft any origin (e.g. root) && we can't verify whether it
+				// is valid, or not.
 			};
 
 			let minimal_fee_in_this_tokens = estimate_message_dispatch_and_delivery_fee::<B>(

bridges/modules/grandpa/src/lib.rs

@@ -166,7 +166,7 @@ pub mod pallet {
 				try_enact_authority_change::<T, I>(&finality_target, set_id)?;
 			<RequestCount<T, I>>::mutate(|count| *count += 1);
 			insert_header::<T, I>(*finality_target, hash);
-			log::info!(target: "runtime::bridge-grandpa", "Succesfully imported finalized header with hash {:?}!", hash);
+			log::info!(target: "runtime::bridge-grandpa", "Successfully imported finalized header with hash {:?}!", hash);
 
 			// mandatory header is a header that changes authorities set. The pallet can't go
 			// further without importing this header. So every bridge MUST import mandatory headers.

bridges/modules/messages/src/mock.rs

@@ -198,7 +198,7 @@ impl SenderOrigin<AccountId> for Origin {
 	fn linked_account(&self) -> Option<AccountId> {
 		match self.caller {
 			OriginCaller::system(frame_system::RawOrigin::Signed(ref submitter)) =>
-				Some(submitter.clone()),
+				Some(*submitter),
 			_ => None,
 		}
 	}

bridges/modules/messages/src/outbound_lane.rs

@@ -74,7 +74,7 @@ pub struct OutboundLane<S> {
 }
 
 impl<S: OutboundLaneStorage> OutboundLane<S> {
-	/// Create new inbound lane backed by given storage.
+	/// Create new outbound lane backed by given storage.
 	pub fn new(storage: S) -> Self {
 		OutboundLane { storage }
 	}

bridges/primitives/header-chain/src/justification.rs

@@ -113,19 +113,19 @@ where
 		// check if authority has already voted in the same round.
 		//
 		// there's a lot of code in `validate_commit` and `import_precommit` functions inside
-		// `finality-grandpa` crate (mostly related to reporing equivocations). But the only thing
+		// `finality-grandpa` crate (mostly related to reporting equivocations). But the only thing
 		// that we care about is that only first vote from the authority is accepted
 		if !votes.insert(signed.id.clone()) {
 			continue
 		}
 
 		// everything below this line can't just `continue`, because state is already altered
 
-		// all precommits must be for block higher than the target
+		// precommits aren't allowed for block lower than the target
 		if signed.precommit.target_number < justification.commit.target_number {
 			return Err(Error::PrecommitIsNotCommitDescendant)
 		}
-		// all precommits must be for target block descendents
+		// all precommits must be descendants of target block
 		chain = chain
 			.ensure_descendant(&justification.commit.target_hash, &signed.precommit.target_hash)?;
 		// since we know now that the precommit target is the descendant of the justification
@@ -193,8 +193,8 @@ impl<Header: HeaderT> AncestryChain<Header> {
 		AncestryChain { parents, unvisited }
 	}
 
-	/// Returns `Err(_)` if `precommit_target` is a descendant of the `commit_target` block and
-	/// `Ok(_)` otherwise.
+	/// Returns `Ok(_)` if `precommit_target` is a descendant of the `commit_target` block and
+	/// `Err(_)` otherwise.
 	pub fn ensure_descendant(
 		mut self,
 		commit_target: &Header::Hash,
@@ -213,7 +213,7 @@ impl<Header: HeaderT> AncestryChain<Header> {
 						// `Some(parent_hash)` means that the `current_hash` is in the `parents`
 						// container `is_visited_before` means that it has been visited before in
 						// some of previous calls => since we assume that previous call has finished
-						// with `true`, this also will    be finished with `true`
+						// with `true`, this also will be finished with `true`
 						return Ok(self)
 					}
 

bridges/primitives/messages/src/lib.rs

@@ -19,8 +19,6 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 // RuntimeApi generated functions
 #![allow(clippy::too_many_arguments)]
-// Generated by `DecodeLimit::decode_with_depth_limit`
-#![allow(clippy::unnecessary_mut_passed)]
 
 use bitvec::prelude::*;
 use bp_runtime::messages::DispatchFeePayment;
@@ -42,7 +40,7 @@ pub use frame_support::weights::Weight;
 pub enum OperatingMode {
 	/// Normal mode, when all operations are allowed.
 	Normal,
-	/// The pallet is not accepting outbound messages. Inbound messages and receival proofs
+	/// The pallet is not accepting outbound messages. Inbound messages and receiving proofs
 	/// are still accepted.
 	///
 	/// This mode may be used e.g. when bridged chain expects upgrade. Then to avoid dispatch
@@ -226,7 +224,7 @@ impl DeliveredMessages {
 	/// dispatch result.
 	pub fn new(nonce: MessageNonce, dispatch_result: bool) -> Self {
 		let mut dispatch_results = BitVec::with_capacity(1);
-		dispatch_results.push(if dispatch_result { true } else { false });
+		dispatch_results.push(dispatch_result);
 		DeliveredMessages { begin: nonce, end: nonce, dispatch_results }
 	}
 

bridges/primitives/runtime/src/chain.rs

@@ -154,7 +154,6 @@ pub trait Chain: Send + Sync + 'static {
 	type Balance: AtLeast32BitUnsigned
 		+ FixedPointOperand
 		+ Parameter
-		+ Parameter
 		+ Member
 		+ MaybeSerializeDeserialize
 		+ Clone

bridges/relays/bin-substrate/src/cli/reinit_bridge.rs

@@ -178,7 +178,7 @@ impl ReinitBridge {
 				(current_number + 1, target_number),
 			)
 			.await?;
-			let latest_andatory_header_number = headers_to_submit.last().map(|(h, _)| h.number());
+			let latest_mandatory_header_number = headers_to_submit.last().map(|(h, _)| h.number());
 			log::info!(
 				target: "bridge",
 				"Missing {} mandatory {} headers at {}",
@@ -281,13 +281,13 @@ impl ReinitBridge {
 				ensure_pallet_operating_mode(&finality_target, is_last_batch).await?;
 			}
 
-			if let Some(latest_andatory_header_number) = latest_andatory_header_number {
+			if let Some(latest_mandatory_header_number) = latest_mandatory_header_number {
 				log::info!(
 					target: "bridge",
 					"Successfully updated best {} header at {} to {}. Pallet is now operational",
 					Source::NAME,
 					Target::NAME,
-					latest_andatory_header_number,
+					latest_mandatory_header_number,
 				);
 			}
 

bridges/relays/lib-substrate-relay/src/conversion_rate_update.rs

@@ -280,7 +280,7 @@ where
 					genesis_hash,
 					signer: transaction_params.signer,
 					era: TransactionEra::new(best_block_id, transaction_params.mortality),
-					unsigned: UnsignedTransaction::new(call.into(), transaction_nonce).into(),
+					unsigned: UnsignedTransaction::new(call.into(), transaction_nonce),
 				})?
 				.encode(),
 			))

bridges/relays/lib-substrate-relay/src/messages_target.rs

@@ -192,7 +192,7 @@ where
 			.inbound_lane_data(id)
 			.await?
 			.map(|data| data.relayers)
-			.unwrap_or_else(|| VecDeque::new());
+			.unwrap_or_else(VecDeque::new);
 		let unrewarded_relayers_state = bp_messages::UnrewardedRelayersState {
 			unrewarded_relayer_entries: relayers.len() as _,
 			messages_in_oldest_entry: relayers