companion: for call usage https://github.com/paritytech/substrate/pull/9418 (#3522)

* add test for call size

* fix box arg

* fix xcm variant length + increase limit a bit

* fix para sudo wrapper call length

* reorganize

* fmt

* fix tests

* update Substrate

Co-authored-by: parity-processbot <>

polkadot/runtime/common/src/paras_sudo_wrapper.rs

@@ -26,6 +26,7 @@ use runtime_parachains::{
 	paras::{self, ParaGenesisArgs},
 	ump, ParaLifecycle,
 };
+use sp_std::boxed::Box;
 
 #[frame_support::pallet]
 pub mod pallet {
@@ -132,7 +133,7 @@ pub mod pallet {
 		pub fn sudo_queue_downward_xcm(
 			origin: OriginFor<T>,
 			id: ParaId,
-			xcm: xcm::opaque::VersionedXcm,
+			xcm: Box<xcm::opaque::VersionedXcm>,
 		) -> DispatchResult {
 			ensure_root(origin)?;
 			ensure!(<paras::Pallet<T>>::is_valid_para(id), Error::<T>::ParaDoesntExist);

polkadot/runtime/kusama/src/tests.rs

@@ -168,3 +168,13 @@ fn era_payout_should_give_sensible_results() {
 	assert_eq!(era_payout(75, 100, Perquintill::from_percent(10), Perquintill::one(), 0,), (10, 0));
 	assert_eq!(era_payout(80, 100, Perquintill::from_percent(10), Perquintill::one(), 0,), (6, 4));
 }
+
+#[test]
+fn call_size() {
+	assert!(
+		core::mem::size_of::<Call>() <= 230,
+		"size of Call is more than 230 bytes: some calls have too big arguments, use Box to reduce \
+		the size of Call.
+		If the limit is too strong, maybe consider increase the limit to 300.",
+	);
+}

polkadot/runtime/polkadot/src/lib.rs

@@ -1683,3 +1683,18 @@ mod test_fees {
 		assert!(active > target_voters, "we need to reevaluate the weight of the election system");
 	}
 }
+
+#[cfg(test)]
+mod test {
+	use super::*;
+
+	#[test]
+	fn call_size() {
+		assert!(
+			core::mem::size_of::<Call>() <= 230,
+			"size of Call is more than 230 bytes: some calls have too big arguments, use Box to \
+			reduce the size of Call.
+			If the limit is too strong, maybe consider increase the limit",
+		);
+	}
+}

polkadot/runtime/westend/src/tests.rs

@@ -39,3 +39,13 @@ fn sample_size_is_sensible() {
 			BlockWeights::get().max_block
 	);
 }
+
+#[test]
+fn call_size() {
+	assert!(
+		core::mem::size_of::<Call>() <= 230,
+		"size of Call is more than 230 bytes: some calls have too big arguments, use Box to reduce \
+		the size of Call.
+		If the limit is too strong, maybe consider increase the limit to 300.",
+	);
+}

polkadot/utils/staking-miner/src/main.rs

@@ -78,7 +78,7 @@ macro_rules! construct_runtime_prelude {
 
 					let crate::signer::Signer { account, pair, .. } = signer;
 
-					let local_call = EPMCall::<Runtime>::submit(raw_solution, witness);
+					let local_call = EPMCall::<Runtime>::submit(Box::new(raw_solution), witness);
 					let call: Call = <EPMCall<Runtime> as std::convert::TryInto<Call>>::try_into(local_call)
 						.expect("election provider pallet must exist in the runtime, thus \
 							inner call can be converted, qed."

polkadot/xcm/pallet-xcm/src/lib.rs

@@ -114,15 +114,19 @@ pub mod pallet {
 	#[pallet::call]
 	impl<T: Config> Pallet<T> {
 		#[pallet::weight(100_000_000)]
-		pub fn send(origin: OriginFor<T>, dest: MultiLocation, message: Xcm<()>) -> DispatchResult {
+		pub fn send(
+			origin: OriginFor<T>,
+			dest: Box<MultiLocation>,
+			message: Box<Xcm<()>>,
+		) -> DispatchResult {
 			let origin_location = T::SendXcmOrigin::ensure_origin(origin)?;
-			Self::send_xcm(origin_location.clone(), dest.clone(), message.clone()).map_err(
+			Self::send_xcm(origin_location.clone(), *dest.clone(), *message.clone()).map_err(
 				|e| match e {
 					XcmError::CannotReachDestination(..) => Error::<T>::Unreachable,
 					_ => Error::<T>::SendFailure,
 				},
 			)?;
-			Self::deposit_event(Event::Sent(origin_location, dest, message));
+			Self::deposit_event(Event::Sent(origin_location, *dest, *message));
 			Ok(())
 		}
 
@@ -144,7 +148,7 @@ pub mod pallet {
 				assets: assets.clone(),
 				effects: sp_std::vec![ InitiateTeleport {
 					assets: Wild(All),
-					dest: dest.clone(),
+					dest: *dest.clone(),
 					effects: sp_std::vec![],
 				} ]
 			};
@@ -152,8 +156,8 @@ pub mod pallet {
 		})]
 		pub fn teleport_assets(
 			origin: OriginFor<T>,
-			dest: MultiLocation,
-			beneficiary: MultiLocation,
+			dest: Box<MultiLocation>,
+			beneficiary: Box<MultiLocation>,
 			assets: MultiAssets,
 			fee_asset_item: u32,
 			dest_weight: Weight,
@@ -176,7 +180,7 @@ pub mod pallet {
 				assets,
 				effects: vec![InitiateTeleport {
 					assets: Wild(All),
-					dest,
+					dest: *dest,
 					effects: vec![
 						BuyExecution {
 							fees,
@@ -187,7 +191,7 @@ pub mod pallet {
 							orders: vec![],
 							instructions: vec![],
 						},
-						DepositAsset { assets: Wild(All), max_assets, beneficiary },
+						DepositAsset { assets: Wild(All), max_assets, beneficiary: *beneficiary },
 					],
 				}],
 			};
@@ -216,15 +220,15 @@ pub mod pallet {
 		#[pallet::weight({
 			let mut message = Xcm::TransferReserveAsset {
 				assets: assets.clone(),
-				dest: dest.clone(),
+				dest: *dest.clone(),
 				effects: sp_std::vec![],
 			};
 			T::Weigher::weight(&mut message).map_or(Weight::max_value(), |w| 100_000_000 + w)
 		})]
 		pub fn reserve_transfer_assets(
 			origin: OriginFor<T>,
-			dest: MultiLocation,
-			beneficiary: MultiLocation,
+			dest: Box<MultiLocation>,
+			beneficiary: Box<MultiLocation>,
 			assets: MultiAssets,
 			fee_asset_item: u32,
 			dest_weight: Weight,
@@ -245,7 +249,7 @@ pub mod pallet {
 			let assets = assets.into();
 			let mut message = Xcm::TransferReserveAsset {
 				assets,
-				dest,
+				dest: *dest,
 				effects: vec![
 					BuyExecution {
 						fees,
@@ -256,7 +260,7 @@ pub mod pallet {
 						orders: vec![],
 						instructions: vec![],
 					},
-					DepositAsset { assets: Wild(All), max_assets, beneficiary },
+					DepositAsset { assets: Wild(All), max_assets, beneficiary: *beneficiary },
 				],
 			};
 			let weight =

polkadot/xcm/pallet-xcm/src/tests.rs

@@ -46,7 +46,11 @@ fn send_works() {
 				DepositAsset { assets: All.into(), max_assets: 1, beneficiary: sender.clone() },
 			],
 		};
-		assert_ok!(XcmPallet::send(Origin::signed(ALICE), RelayLocation::get(), message.clone()));
+		assert_ok!(XcmPallet::send(
+			Origin::signed(ALICE),
+			Box::new(RelayLocation::get()),
+			Box::new(message.clone())
+		));
 		assert_eq!(
 			sent_xcm(),
 			vec![(
@@ -83,7 +87,7 @@ fn send_fails_when_xcm_router_blocks() {
 		assert_noop!(
 			XcmPallet::send(
 				Origin::signed(ALICE),
-				X8(
+				Box::new(X8(
 					Junction::Parent,
 					Junction::Parent,
 					Junction::Parent,
@@ -92,8 +96,8 @@ fn send_fails_when_xcm_router_blocks() {
 					Junction::Parent,
 					Junction::Parent,
 					Junction::Parent
-				),
-				message.clone()
+				)),
+				Box::new(message.clone())
 			),
 			crate::Error::<Test>::SendFailure
 		);
@@ -113,8 +117,8 @@ fn teleport_assets_works() {
 		assert_eq!(Balances::total_balance(&ALICE), INITIAL_BALANCE);
 		assert_ok!(XcmPallet::teleport_assets(
 			Origin::signed(ALICE),
-			RelayLocation::get(),
-			X1(AccountId32 { network: Any, id: BOB.into() }),
+			Box::new(RelayLocation::get()),
+			Box::new(X1(AccountId32 { network: Any, id: BOB.into() })),
 			(Here, SEND_AMOUNT).into(),
 			0,
 			weight,
@@ -142,8 +146,8 @@ fn reserve_transfer_assets_works() {
 		assert_eq!(Balances::total_balance(&ALICE), INITIAL_BALANCE);
 		assert_ok!(XcmPallet::reserve_transfer_assets(
 			Origin::signed(ALICE),
-			Parachain(PARA_ID).into(),
-			dest.clone(),
+			Box::new(Parachain(PARA_ID).into()),
+			Box::new(dest.clone()),
 			(Here, SEND_AMOUNT).into(),
 			0,
 			weight

polkadot/xcm/xcm-simulator/example/src/lib.rs

@@ -190,8 +190,8 @@ mod tests {
 		Relay::execute_with(|| {
 			assert_ok!(RelayChainPalletXcm::reserve_transfer_assets(
 				relay_chain::Origin::signed(ALICE),
-				X1(Parachain(1)),
-				X1(AccountId32 { network: Any, id: ALICE.into() }),
+				Box::new(X1(Parachain(1))),
+				Box::new(X1(AccountId32 { network: Any, id: ALICE.into() })),
 				(Here, 123).into(),
 				0,
 				3,