Companion: Rename pallet trait Trait to Config (#2014)

* rename Trait -> Config

* revert diener changes

* rename HostConfig to ActiveConfig as more meaningful

* fix merge

* "Update Substrate"

* cargo update -p sp-io

Co-authored-by: parity-processbot <>

polkadot/runtime/common/src/claims.rs

@@ -37,13 +37,13 @@ use sp_runtime::{
 };
 use primitives::v1::ValidityError;
 
-type CurrencyOf<T> = <<T as Trait>::VestingSchedule as VestingSchedule<<T as frame_system::Trait>::AccountId>>::Currency;
-type BalanceOf<T> = <CurrencyOf<T> as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
+type CurrencyOf<T> = <<T as Config>::VestingSchedule as VestingSchedule<<T as frame_system::Config>::AccountId>>::Currency;
+type BalanceOf<T> = <CurrencyOf<T> as Currency<<T as frame_system::Config>::AccountId>>::Balance;
 
 /// Configuration trait.
-pub trait Trait: frame_system::Trait {
+pub trait Config: frame_system::Config {
 	/// The overarching event type.
-	type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
+	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;
 	type VestingSchedule: VestingSchedule<Self::AccountId, Moment=Self::BlockNumber>;
 	type Prefix: Get<&'static [u8]>;
 	type MoveClaimOrigin: EnsureOrigin<Self::Origin>;
@@ -130,7 +130,7 @@ impl sp_std::fmt::Debug for EcdsaSignature {
 decl_event!(
 	pub enum Event<T> where
 		Balance = BalanceOf<T>,
-		AccountId = <T as frame_system::Trait>::AccountId
+		AccountId = <T as frame_system::Config>::AccountId
 	{
 		/// Someone claimed some DOTs. [who, ethereum_address, amount]
 		Claimed(AccountId, EthereumAddress, Balance),
@@ -138,7 +138,7 @@ decl_event!(
 );
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Invalid Ethereum signature.
 		InvalidEthereumSignature,
 		/// Ethereum address has no claim.
@@ -159,7 +159,7 @@ decl_storage! {
 	// A macro for the Storage trait, and its implementation, for this module.
 	// This allows for type-safe usage of the Substrate storage database, so you can
 	// keep things around between blocks.
-	trait Store for Module<T: Trait> as Claims {
+	trait Store for Module<T: Config> as Claims {
 		Claims get(fn claims) build(|config: &GenesisConfig<T>| {
 			config.claims.iter().map(|(a, b, _, _)| (a.clone(), b.clone())).collect::<Vec<_>>()
 		}): map hasher(identity) EthereumAddress => Option<BalanceOf<T>>;
@@ -194,7 +194,7 @@ decl_storage! {
 }
 
 decl_module! {
-	pub struct Module<T: Trait> for enum Call where origin: T::Origin {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin {
 		type Error = Error<T>;
 
 		/// The Prefix that is used in signed Ethereum messages for this network
@@ -426,7 +426,7 @@ fn to_ascii_hex(data: &[u8]) -> Vec<u8> {
 	r
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	// Constructs the message that Ethereum RPC's `personal_sign` and `eth_sign` would sign.
 	fn ethereum_signable_message(what: &[u8], extra: &[u8]) -> Vec<u8> {
 		let prefix = T::Prefix::get();
@@ -487,7 +487,7 @@ impl<T: Trait> Module<T> {
 	}
 }
 
-impl<T: Trait> sp_runtime::traits::ValidateUnsigned for Module<T> {
+impl<T: Config> sp_runtime::traits::ValidateUnsigned for Module<T> {
 	type Call = Call<T>;
 
 	fn validate_unsigned(_source: TransactionSource, call: &Self::Call) -> TransactionValidity {
@@ -538,11 +538,11 @@ impl<T: Trait> sp_runtime::traits::ValidateUnsigned for Module<T> {
 /// Validate `attest` calls prior to execution. Needed to avoid a DoS attack since they are
 /// otherwise free to place on chain.
 #[derive(Encode, Decode, Clone, Eq, PartialEq)]
-pub struct PrevalidateAttests<T: Trait + Send + Sync>(sp_std::marker::PhantomData<T>) where
-	<T as frame_system::Trait>::Call: IsSubType<Call<T>>;
+pub struct PrevalidateAttests<T: Config + Send + Sync>(sp_std::marker::PhantomData<T>) where
+	<T as frame_system::Config>::Call: IsSubType<Call<T>>;
 
-impl<T: Trait + Send + Sync> Debug for PrevalidateAttests<T> where
-	<T as frame_system::Trait>::Call: IsSubType<Call<T>>
+impl<T: Config + Send + Sync> Debug for PrevalidateAttests<T> where
+	<T as frame_system::Config>::Call: IsSubType<Call<T>>
 {
 	#[cfg(feature = "std")]
 	fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
@@ -555,8 +555,8 @@ impl<T: Trait + Send + Sync> Debug for PrevalidateAttests<T> where
 	}
 }
 
-impl<T: Trait + Send + Sync> PrevalidateAttests<T> where
-	<T as frame_system::Trait>::Call: IsSubType<Call<T>>
+impl<T: Config + Send + Sync> PrevalidateAttests<T> where
+	<T as frame_system::Config>::Call: IsSubType<Call<T>>
 {
 	/// Create new `SignedExtension` to check runtime version.
 	pub fn new() -> Self {
@@ -564,11 +564,11 @@ impl<T: Trait + Send + Sync> PrevalidateAttests<T> where
 	}
 }
 
-impl<T: Trait + Send + Sync> SignedExtension for PrevalidateAttests<T> where
-	<T as frame_system::Trait>::Call: IsSubType<Call<T>>
+impl<T: Config + Send + Sync> SignedExtension for PrevalidateAttests<T> where
+	<T as frame_system::Config>::Call: IsSubType<Call<T>>
 {
 	type AccountId = T::AccountId;
-	type Call = <T as frame_system::Trait>::Call;
+	type Call = <T as frame_system::Config>::Call;
 	type AdditionalSigned = ();
 	type Pre = ();
 	const IDENTIFIER: &'static str = "PrevalidateAttests";
@@ -615,7 +615,7 @@ mod secp_utils {
 		res.0.copy_from_slice(&keccak_256(&public(secret).serialize()[1..65])[12..]);
 		res
 	}
-	pub fn sig<T: Trait>(secret: &secp256k1::SecretKey, what: &[u8], extra: &[u8]) -> EcdsaSignature {
+	pub fn sig<T: Config>(secret: &secp256k1::SecretKey, what: &[u8], extra: &[u8]) -> EcdsaSignature {
 		let msg = keccak_256(&<super::Module<T>>::ethereum_signable_message(&to_ascii_hex(what)[..], extra));
 		let (sig, recovery_id) = secp256k1::sign(&secp256k1::Message::parse(&msg), secret);
 		let mut r = [0u8; 65];
@@ -665,7 +665,7 @@ mod tests {
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Call = Call;
@@ -697,7 +697,7 @@ mod tests {
 		pub const ExistentialDeposit: u64 = 1;
 	}
 
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u64;
 		type Event = ();
 		type DustRemoval = ();
@@ -711,7 +711,7 @@ mod tests {
 		pub const MinVestedTransfer: u64 = 0;
 	}
 
-	impl pallet_vesting::Trait for Test {
+	impl pallet_vesting::Config for Test {
 		type Event = ();
 		type Currency = Balances;
 		type BlockNumberToBalance = Identity;
@@ -726,7 +726,7 @@ mod tests {
 		pub const Six: u64 = 6;
 	}
 
-	impl Trait for Test {
+	impl Config for Test {
 		type Event = ();
 		type VestingSchedule = Vesting;
 		type Prefix = Prefix;
@@ -1048,7 +1048,7 @@ mod tests {
 	fn claiming_while_vested_doesnt_work() {
 		new_test_ext().execute_with(|| {
 			// A user is already vested
-			assert_ok!(<Test as Trait>::VestingSchedule::add_vesting_schedule(&69, total_claims(), 100, 10));
+			assert_ok!(<Test as Config>::VestingSchedule::add_vesting_schedule(&69, total_claims(), 100, 10));
 			CurrencyOf::<Test>::make_free_balance_be(&69, total_claims());
 			assert_eq!(Balances::free_balance(69), total_claims());
 			assert_ok!(Claims::mint_claim(Origin::root(), eth(&bob()), 200, Some((50, 10, 1)), None));
@@ -1181,7 +1181,7 @@ mod benchmarking {
 	const MAX_CLAIMS: u32 = 10_000;
 	const VALUE: u32 = 1_000_000;
 
-	fn create_claim<T: Trait>(input: u32) -> DispatchResult {
+	fn create_claim<T: Config>(input: u32) -> DispatchResult {
 		let secret_key = secp256k1::SecretKey::parse(&keccak_256(&input.encode())).unwrap();
 		let eth_address = eth(&secret_key);
 		let vesting = Some((100_000u32.into(), 1_000u32.into(), 100u32.into()));
@@ -1189,7 +1189,7 @@ mod benchmarking {
 		Ok(())
 	}
 
-	fn create_claim_attest<T: Trait>(input: u32) -> DispatchResult {
+	fn create_claim_attest<T: Config>(input: u32) -> DispatchResult {
 		let secret_key = secp256k1::SecretKey::parse(&keccak_256(&input.encode())).unwrap();
 		let eth_address = eth(&secret_key);
 		let vesting = Some((100_000u32.into(), 1_000u32.into(), 100u32.into()));

polkadot/runtime/common/src/crowdfund.rs

@@ -82,13 +82,13 @@ use sp_std::vec::Vec;
 use primitives::v1::{Id as ParaId, HeadData};
 
 pub type BalanceOf<T> =
-	<<T as slots::Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
+	<<T as slots::Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;
 #[allow(dead_code)]
 pub type NegativeImbalanceOf<T> =
-	<<T as slots::Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::NegativeImbalance;
+	<<T as slots::Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::NegativeImbalance;
 
-pub trait Trait: slots::Trait {
-	type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
+pub trait Config: slots::Config {
+	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;
 
 	/// ModuleID for the crowdfund module. An appropriate value could be ```ModuleId(*b"py/cfund")```
 	type ModuleId: Get<ModuleId>;
@@ -164,7 +164,7 @@ pub struct FundInfo<AccountId, Balance, Hash, BlockNumber> {
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Crowdfund {
+	trait Store for Module<T: Config> as Crowdfund {
 		/// Info on all of the funds.
 		Funds get(fn funds):
 			map hasher(twox_64_concat) FundIndex
@@ -184,7 +184,7 @@ decl_storage! {
 
 decl_event! {
 	pub enum Event<T> where
-		<T as frame_system::Trait>::AccountId,
+		<T as frame_system::Config>::AccountId,
 		Balance = BalanceOf<T>,
 	{
 		/// Create a new crowdfunding campaign. [fund_index]
@@ -205,7 +205,7 @@ decl_event! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Last slot must be greater than first slot.
 		LastSlotBeforeFirstSlot,
 		/// The last slot cannot be more then 3 slots after the first slot.
@@ -251,7 +251,7 @@ decl_error! {
 }
 
 decl_module! {
-	pub struct Module<T: Trait> for enum Call where origin: T::Origin {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin {
 		type Error = Error<T>;
 
 		const ModuleId: ModuleId = T::ModuleId::get();
@@ -528,7 +528,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// The account ID of the fund pot.
 	///
 	/// This actually does computation. If you need to keep using it, then make sure you cache the
@@ -599,7 +599,7 @@ mod tests {
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Call = ();
@@ -629,7 +629,7 @@ mod tests {
 	parameter_types! {
 		pub const ExistentialDeposit: u64 = 1;
 	}
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u64;
 		type Event = ();
 		type DustRemoval = ();
@@ -667,7 +667,7 @@ mod tests {
 		fn min_len() -> usize { 0 }
 		fn max_len() -> usize { 0 }
 	}
-	impl pallet_treasury::Trait for Test {
+	impl pallet_treasury::Config for Test {
 		type Currency = pallet_balances::Module<Test>;
 		type ApproveOrigin = frame_system::EnsureRoot<u64>;
 		type RejectOrigin = frame_system::EnsureRoot<u64>;
@@ -749,7 +749,7 @@ mod tests {
 		pub const LeasePeriod: u64 = 10;
 		pub const EndingPeriod: u64 = 3;
 	}
-	impl slots::Trait for Test {
+	impl slots::Config for Test {
 		type Event = ();
 		type Currency = Balances;
 		type Parachains = TestParachains;
@@ -763,7 +763,7 @@ mod tests {
 		pub const RetirementPeriod: u64 = 5;
 		pub const CrowdfundModuleId: ModuleId = ModuleId(*b"py/cfund");
 	}
-	impl Trait for Test {
+	impl Config for Test {
 		type Event = ();
 		type SubmissionDeposit = SubmissionDeposit;
 		type MinContribution = MinContribution;
@@ -936,7 +936,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into()
 			));
@@ -947,7 +947,7 @@ mod tests {
 			assert_eq!(
 				fund.deploy_data,
 				Some(DeployData {
-					code_hash: <Test as frame_system::Trait>::Hash::default(),
+					code_hash: <Test as frame_system::Config>::Hash::default(),
 					code_size: 0,
 					initial_head_data: vec![0].into(),
 				}),
@@ -966,7 +966,7 @@ mod tests {
 			assert_noop!(Crowdfund::fix_deploy_data(
 				Origin::signed(2),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into()),
 				Error::<Test>::InvalidOrigin
@@ -976,7 +976,7 @@ mod tests {
 			assert_noop!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				1,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into()),
 				Error::<Test>::InvalidFundIndex
@@ -986,7 +986,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -994,7 +994,7 @@ mod tests {
 			assert_noop!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![1].into()),
 				Error::<Test>::ExistingDeployData
@@ -1014,7 +1014,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1060,7 +1060,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1088,7 +1088,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1131,7 +1131,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1273,7 +1273,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1302,7 +1302,7 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
@@ -1341,14 +1341,14 @@ mod tests {
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(1),
 				0,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));
 			assert_ok!(Crowdfund::fix_deploy_data(
 				Origin::signed(2),
 				1,
-				<Test as frame_system::Trait>::Hash::default(),
+				<Test as frame_system::Config>::Hash::default(),
 				0,
 				vec![0].into(),
 			));

polkadot/runtime/common/src/impls.rs

@@ -23,12 +23,12 @@ use crate::NegativeImbalance;
 pub struct ToAuthor<R>(sp_std::marker::PhantomData<R>);
 impl<R> OnUnbalanced<NegativeImbalance<R>> for ToAuthor<R>
 where
-	R: pallet_balances::Trait + pallet_authorship::Trait,
-	<R as frame_system::Trait>::AccountId: From<primitives::v1::AccountId>,
-	<R as frame_system::Trait>::AccountId: Into<primitives::v1::AccountId>,
-	<R as frame_system::Trait>::Event: From<pallet_balances::RawEvent<
-		<R as frame_system::Trait>::AccountId,
-		<R as pallet_balances::Trait>::Balance,
+	R: pallet_balances::Config + pallet_authorship::Config,
+	<R as frame_system::Config>::AccountId: From<primitives::v1::AccountId>,
+	<R as frame_system::Config>::AccountId: Into<primitives::v1::AccountId>,
+	<R as frame_system::Config>::Event: From<pallet_balances::RawEvent<
+		<R as frame_system::Config>::AccountId,
+		<R as pallet_balances::Config>::Balance,
 		pallet_balances::DefaultInstance>
 	>,
 {
@@ -43,13 +43,13 @@ where
 pub struct DealWithFees<R>(sp_std::marker::PhantomData<R>);
 impl<R> OnUnbalanced<NegativeImbalance<R>> for DealWithFees<R>
 where
-	R: pallet_balances::Trait + pallet_treasury::Trait + pallet_authorship::Trait,
+	R: pallet_balances::Config + pallet_treasury::Config + pallet_authorship::Config,
 	pallet_treasury::Module<R>: OnUnbalanced<NegativeImbalance<R>>,
-	<R as frame_system::Trait>::AccountId: From<primitives::v1::AccountId>,
-	<R as frame_system::Trait>::AccountId: Into<primitives::v1::AccountId>,
-	<R as frame_system::Trait>::Event: From<pallet_balances::RawEvent<
-		<R as frame_system::Trait>::AccountId,
-		<R as pallet_balances::Trait>::Balance,
+	<R as frame_system::Config>::AccountId: From<primitives::v1::AccountId>,
+	<R as frame_system::Config>::AccountId: Into<primitives::v1::AccountId>,
+	<R as frame_system::Config>::Event: From<pallet_balances::RawEvent<
+		<R as frame_system::Config>::AccountId,
+		<R as pallet_balances::Config>::Balance,
 		pallet_balances::DefaultInstance>
 	>,
 {
@@ -97,7 +97,7 @@ mod tests {
 		pub const AvailableBlockRatio: Perbill = Perbill::one();
 	}
 
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Index = u64;
@@ -125,7 +125,7 @@ mod tests {
 		type SystemWeightInfo = ();
 	}
 
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u64;
 		type Event = ();
 		type DustRemoval = ();
@@ -151,7 +151,7 @@ mod tests {
 		pub const TreasuryModuleId: ModuleId = ModuleId(*b"py/trsry");
 	}
 
-	impl pallet_treasury::Trait for Test {
+	impl pallet_treasury::Config for Test {
 		type Currency = pallet_balances::Module<Test>;
 		type ApproveOrigin = frame_system::EnsureRoot<AccountId>;
 		type RejectOrigin = frame_system::EnsureRoot<AccountId>;
@@ -185,7 +185,7 @@ mod tests {
 			Some(Default::default())
 		}
 	}
-	impl pallet_authorship::Trait for Test {
+	impl pallet_authorship::Config for Test {
 		type FindAuthor = OneAuthor;
 		type UncleGenerations = ();
 		type FilterUncle = ();

polkadot/runtime/common/src/lib.rs

@@ -47,7 +47,7 @@ pub use pallet_balances::Call as BalancesCall;
 /// Implementations of some helper traits passed into runtime modules as associated types.
 pub use impls::ToAuthor;
 
-pub type NegativeImbalance<T> = <pallet_balances::Module<T> as Currency<<T as frame_system::Trait>::AccountId>>::NegativeImbalance;
+pub type NegativeImbalance<T> = <pallet_balances::Module<T> as Currency<<T as frame_system::Config>::AccountId>>::NegativeImbalance;
 
 /// The sequence of bytes a valid wasm module binary always starts with. Apart from that it's also a
 /// valid wasm module.
@@ -106,7 +106,7 @@ impl<T> sp_runtime::BoundToRuntimeAppPublic for ParachainSessionKeyPlaceholder<T
 	type Public = ValidatorId;
 }
 
-impl<T: pallet_session::Trait>
+impl<T: pallet_session::Config>
 	pallet_session::OneSessionHandler<T::AccountId> for ParachainSessionKeyPlaceholder<T>
 {
 	type Key = ValidatorId;
@@ -154,7 +154,7 @@ mod multiplier_tests {
 		pub const AvailableBlockRatio: Perbill = Perbill::one();
 	}
 
-	impl frame_system::Trait for Runtime {
+	impl frame_system::Config for Runtime {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Index = u64;

polkadot/runtime/common/src/paras_registrar.rs

@@ -39,15 +39,15 @@ use runtime_parachains::{
 };
 
 type BalanceOf<T> =
-	<<T as Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
+	<<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;
 
-pub trait Trait: paras::Trait + dmp::Trait + ump::Trait + hrmp::Trait {
+pub trait Config: paras::Config + dmp::Config + ump::Config + hrmp::Config {
 	/// The aggregated origin type must support the `parachains` origin. We require that we can
 	/// infallibly convert between this origin and the system origin, but in reality, they're the
 	/// same type, we just can't express that to the Rust type system without writing a `where`
 	/// clause everywhere.
-	type Origin: From<<Self as frame_system::Trait>::Origin>
-		+ Into<result::Result<Origin, <Self as Trait>::Origin>>;
+	type Origin: From<<Self as frame_system::Config>::Origin>
+		+ Into<result::Result<Origin, <Self as Config>::Origin>>;
 
 	/// The system's currency for parathread payment.
 	type Currency: ReservableCurrency<Self::AccountId>;
@@ -57,7 +57,7 @@ pub trait Trait: paras::Trait + dmp::Trait + ump::Trait + hrmp::Trait {
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Registrar {
+	trait Store for Module<T: Config> as Registrar {
 		/// Whether parathreads are enabled or not.
 		ParathreadsRegistrationEnabled: bool;
 
@@ -73,7 +73,7 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Parachain already exists.
 		ParaAlreadyExists,
 		/// Invalid parachain ID.
@@ -92,7 +92,7 @@ decl_error! {
 }
 
 decl_module! {
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		/// Register a parathread with given code for immediate use.
@@ -117,7 +117,7 @@ decl_module! {
 
 			ensure!(outgoing.binary_search(&id).is_err(), Error::<T>::ParaAlreadyExists);
 
-			<T as Trait>::Currency::reserve(&who, T::ParathreadDeposit::get())?;
+			<T as Config>::Currency::reserve(&who, T::ParathreadDeposit::get())?;
 			<Debtors<T>>::insert(id, who);
 
 			Paras::insert(id, false);
@@ -142,7 +142,7 @@ decl_module! {
 		/// governance intervention).
 		#[weight = 0]
 		fn deregister_parathread(origin) -> DispatchResult {
-			let id = ensure_parachain(<T as Trait>::Origin::from(origin))?;
+			let id = ensure_parachain(<T as Config>::Origin::from(origin))?;
 
 			ensure!(ParathreadsRegistrationEnabled::get(), Error::<T>::ParathreadsRegistrationDisabled);
 
@@ -151,7 +151,7 @@ decl_module! {
 			ensure!(!is_parachain, Error::<T>::InvalidThreadId);
 
 			let debtor = <Debtors<T>>::take(id);
-			let _ = <T as Trait>::Currency::unreserve(&debtor, T::ParathreadDeposit::get());
+			let _ = <T as Config>::Currency::unreserve(&debtor, T::ParathreadDeposit::get());
 
 			runtime_parachains::schedule_para_cleanup::<T>(id);
 
@@ -187,7 +187,7 @@ decl_module! {
 		/// and the auction deposit are switched.
 		#[weight = 0]
 		fn swap(origin, other: ParaId) {
-			let id = ensure_parachain(<T as Trait>::Origin::from(origin))?;
+			let id = ensure_parachain(<T as Config>::Origin::from(origin))?;
 
 			if PendingSwap::get(other) == Some(id) {
 				// Remove intention to swap.
@@ -211,7 +211,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Register a parachain with given code. Must be called by root.
 	/// Fails if given ID is already used.
 	pub fn register_parachain(
@@ -306,7 +306,7 @@ mod tests {
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
 
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Call = Call;
@@ -345,7 +345,7 @@ mod tests {
 		pub const ExistentialDeposit: Balance = 1;
 	}
 
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u128;
 		type DustRemoval = ();
 		type Event = ();
@@ -371,7 +371,7 @@ mod tests {
 		pub const RewardCurve: &'static PiecewiseLinear<'static> = &REWARD_CURVE;
 	}
 
-	impl pallet_session::Trait for Test {
+	impl pallet_session::Config for Test {
 		type SessionManager = ();
 		type Keys = UintAuthorityId;
 		type ShouldEndSession = pallet_session::PeriodicSessions<Period, Offset>;
@@ -395,7 +395,7 @@ mod tests {
 		pub const StakingUnsignedPriority: u64 = u64::max_value() / 2;
 	}
 
-	impl pallet_staking::Trait for Test {
+	impl pallet_staking::Config for Test {
 		type RewardRemainder = ();
 		type CurrencyToVote = frame_support::traits::SaturatingCurrencyToVote;
 		type Event = ();
@@ -420,24 +420,24 @@ mod tests {
 		type WeightInfo = ();
 	}
 
-	impl pallet_timestamp::Trait for Test {
+	impl pallet_timestamp::Config for Test {
 		type Moment = u64;
 		type OnTimestampSet = ();
 		type MinimumPeriod = MinimumPeriod;
 		type WeightInfo = ();
 	}
 
-	impl dmp::Trait for Test {}
+	impl dmp::Config for Test {}
 
-	impl ump::Trait for Test {
+	impl ump::Config for Test {
 		type UmpSink = ();
 	}
 
-	impl hrmp::Trait for Test {
+	impl hrmp::Config for Test {
 		type Origin = Origin;
 	}
 
-	impl pallet_session::historical::Trait for Test {
+	impl pallet_session::historical::Config for Test {
 		type FullIdentification = pallet_staking::Exposure<u64, Balance>;
 		type FullIdentificationOf = pallet_staking::ExposureOf<Self>;
 	}
@@ -467,23 +467,23 @@ mod tests {
 		pub type ReporterId = app::Public;
 	}
 
-	impl paras::Trait for Test {
+	impl paras::Config for Test {
 		type Origin = Origin;
 	}
 
-	impl configuration::Trait for Test { }
+	impl configuration::Config for Test { }
 
-	impl inclusion::Trait for Test {
+	impl inclusion::Config for Test {
 		type Event = ();
 	}
 
-	impl session_info::AuthorityDiscoveryTrait for Test {
+	impl session_info::AuthorityDiscoveryConfig for Test {
 		fn authorities() -> Vec<AuthorityDiscoveryId> {
 			Vec::new()
 		}
 	}
 
-	impl session_info::Trait for Test { }
+	impl session_info::Config for Test { }
 
 	pub struct TestRandomness;
 
@@ -493,11 +493,11 @@ mod tests {
 		}
 	}
 
-	impl initializer::Trait for Test {
+	impl initializer::Config for Test {
 		type Randomness = TestRandomness;
 	}
 
-	impl scheduler::Trait for Test { }
+	impl scheduler::Config for Test { }
 
 	type Extrinsic = TestXt<Call, ()>;
 
@@ -507,8 +507,8 @@ mod tests {
 		fn create_transaction<C: frame_system::offchain::AppCrypto<Self::Public, Self::Signature>>(
 			call: Call,
 			_public: test_keys::ReporterId,
-			_account: <Test as frame_system::Trait>::AccountId,
-			nonce: <Test as frame_system::Trait>::Index,
+			_account: <Test as frame_system::Config>::AccountId,
+			nonce: <Test as frame_system::Config>::Index,
 		) -> Option<(Call, <Extrinsic as ExtrinsicT>::SignaturePayload)> {
 			Some((call, (nonce, ())))
 		}
@@ -525,7 +525,7 @@ mod tests {
 		pub const MaxRetries: u32 = 3;
 	}
 
-	impl Trait for Test {
+	impl Config for Test {
 		type Origin = Origin;
 		type Currency = pallet_balances::Module<Test>;
 		type ParathreadDeposit = ParathreadDeposit;

polkadot/runtime/common/src/paras_sudo_wrapper.rs

@@ -30,13 +30,13 @@ use runtime_parachains::{
 use primitives::v1::Id as ParaId;
 
 /// The module's configuration trait.
-pub trait Trait:
-	configuration::Trait + paras::Trait + dmp::Trait + ump::Trait + hrmp::Trait
+pub trait Config:
+	configuration::Config + paras::Config + dmp::Config + ump::Config + hrmp::Config
 {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// The specified parachain or parathread is not registered.
 		ParaDoesntExist,
 		/// A DMP message couldn't be sent because it exceeds the maximum size allowed for a downward
@@ -49,7 +49,7 @@ decl_error! {
 
 decl_module! {
 	/// A sudo wrapper to call into v1 paras module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		/// Schedule a para to be initialized at the start of the next session.

polkadot/runtime/common/src/purchase.rs

@@ -28,9 +28,9 @@ use sp_core::sr25519;
 use sp_std::prelude::*;
 
 /// Configuration trait.
-pub trait Trait: frame_system::Trait {
+pub trait Config: frame_system::Config {
 	/// The overarching event type.
-	type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
+	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;
 	/// Balances Pallet
 	type Currency: Currency<Self::AccountId>;
 	/// Vesting Pallet
@@ -47,7 +47,7 @@ pub trait Trait: frame_system::Trait {
 	type MaxUnlocked: Get<BalanceOf<Self>>;
 }
 
-type BalanceOf<T> = <<T as Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
+type BalanceOf<T> = <<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;
 
 /// The kind of a statement an account needs to make for a claim to be valid.
 #[derive(Encode, Decode, Clone, Copy, Eq, PartialEq, RuntimeDebug)]
@@ -103,9 +103,9 @@ pub struct AccountStatus<Balance> {
 
 decl_event!(
 	pub enum Event<T> where
-		AccountId = <T as frame_system::Trait>::AccountId,
+		AccountId = <T as frame_system::Config>::AccountId,
 		Balance = BalanceOf<T>,
-		BlockNumber = <T as frame_system::Trait>::BlockNumber,
+		BlockNumber = <T as frame_system::Config>::BlockNumber,
 	{
 		/// A [new] account was created.
 		AccountCreated(AccountId),
@@ -125,7 +125,7 @@ decl_event!(
 );
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Account is not currently valid to use.
 		InvalidAccount,
 		/// Account used in the purchase already exists.
@@ -146,7 +146,7 @@ decl_error! {
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Purchase {
+	trait Store for Module<T: Config> as Purchase {
 		// A map of all participants in the DOT purchase process.
 		Accounts: map hasher(blake2_128_concat) T::AccountId => AccountStatus<BalanceOf<T>>;
 		// The account that will be used to payout participants of the DOT purchase process.
@@ -159,7 +159,7 @@ decl_storage! {
 }
 
 decl_module! {
-	pub struct Module<T: Trait> for enum Call where origin: T::Origin {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin {
 		type Error = Error<T>;
 
 		/// The maximum statement length for the statement users to sign when creating an account.
@@ -340,7 +340,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	fn verify_signature(who: &T::AccountId, signature: &[u8]) -> Result<(), DispatchError> {
 		// sr25519 always expects a 64 byte signature.
 		ensure!(signature.len() == 64, Error::<T>::InvalidSignature);
@@ -374,7 +374,7 @@ fn account_to_bytes<AccountId>(account: &AccountId) -> Result<[u8; 32], Dispatch
 /// WARNING: Executing this function will clear all storage used by this pallet.
 /// Be sure this is what you want...
 pub fn remove_pallet<T>() -> frame_support::weights::Weight
-	where T: frame_system::Trait
+	where T: frame_system::Config
 {
 	use frame_support::migration::remove_storage_prefix;
 	remove_storage_prefix(b"Purchase", b"Accounts", b"");
@@ -428,7 +428,7 @@ mod tests {
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Call = Call;
@@ -460,7 +460,7 @@ mod tests {
 		pub const ExistentialDeposit: u64 = 1;
 	}
 
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u64;
 		type Event = ();
 		type DustRemoval = ();
@@ -474,7 +474,7 @@ mod tests {
 		pub const MinVestedTransfer: u64 = 0;
 	}
 
-	impl pallet_vesting::Trait for Test {
+	impl pallet_vesting::Config for Test {
 		type Event = ();
 		type Currency = Balances;
 		type BlockNumberToBalance = Identity;
@@ -494,7 +494,7 @@ mod tests {
 		pub const ConfigurationOrigin: AccountId = AccountId32::from([2u8; 32]);
 	}
 
-	impl Trait for Test {
+	impl Config for Test {
 		type Event = ();
 		type Currency = Balances;
 		type VestingSchedule = Vesting;
@@ -692,7 +692,7 @@ mod tests {
 			);
 
 			// Account with vesting
-			assert_ok!(<Test as Trait>::VestingSchedule::add_vesting_schedule(
+			assert_ok!(<Test as Config>::VestingSchedule::add_vesting_schedule(
 				&alice(),
 				100,
 				1,
@@ -933,13 +933,13 @@ mod tests {
 				bob(),
 			));
 			// Payment is made.
-			assert_eq!(<Test as Trait>::Currency::free_balance(&payment_account()), 99_650);
-			assert_eq!(<Test as Trait>::Currency::free_balance(&alice()), 100);
+			assert_eq!(<Test as Config>::Currency::free_balance(&payment_account()), 99_650);
+			assert_eq!(<Test as Config>::Currency::free_balance(&alice()), 100);
 			// 10% of the 50 units is unlocked automatically for Alice
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&alice()), Some(45));
-			assert_eq!(<Test as Trait>::Currency::free_balance(&bob()), 250);
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&alice()), Some(45));
+			assert_eq!(<Test as Config>::Currency::free_balance(&bob()), 250);
 			// A max of 10 units is unlocked automatically for Bob
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&bob()), Some(140));
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&bob()), Some(140));
 			// Status is completed.
 			assert_eq!(
 				Accounts::<Test>::get(alice()),
@@ -966,13 +966,13 @@ mod tests {
 			let vest_call = Call::Vesting(pallet_vesting::Call::<Test>::vest());
 			assert_ok!(vest_call.clone().dispatch(Origin::signed(alice())));
 			assert_ok!(vest_call.clone().dispatch(Origin::signed(bob())));
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&alice()), Some(45));
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&bob()), Some(140));
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&alice()), Some(45));
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&bob()), Some(140));
 			System::set_block_number(101);
 			assert_ok!(vest_call.clone().dispatch(Origin::signed(alice())));
 			assert_ok!(vest_call.clone().dispatch(Origin::signed(bob())));
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&alice()), None);
-			assert_eq!(<Test as Trait>::VestingSchedule::vesting_balance(&bob()), None);
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&alice()), None);
+			assert_eq!(<Test as Config>::VestingSchedule::vesting_balance(&bob()), None);
 		});
 	}
 
@@ -985,7 +985,7 @@ mod tests {
 				alice(),
 			), BadOrigin);
 			// Account with Existing Vesting Schedule
-			assert_ok!(<Test as Trait>::VestingSchedule::add_vesting_schedule(
+			assert_ok!(<Test as Config>::VestingSchedule::add_vesting_schedule(
 				&bob(), 100, 1, 50,
 			));
 			assert_noop!(Purchase::payout(

polkadot/runtime/common/src/slots.rs

@@ -34,12 +34,12 @@ use primitives::v1::{
 use frame_system::{ensure_signed, ensure_root};
 use crate::slot_range::{SlotRange, SLOT_RANGE_COUNT};
 
-type BalanceOf<T> = <<T as Trait>::Currency as Currency<<T as frame_system::Trait>::AccountId>>::Balance;
+type BalanceOf<T> = <<T as Config>::Currency as Currency<<T as frame_system::Config>::AccountId>>::Balance;
 
 /// The module's configuration trait.
-pub trait Trait: frame_system::Trait {
+pub trait Config: frame_system::Config {
 	/// The overarching event type.
-	type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
+	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;
 
 	/// The currency type used for bidding.
 	type Currency: ReservableCurrency<Self::AccountId>;
@@ -161,18 +161,18 @@ pub enum IncomingParachain<AccountId, Hash> {
 	Deploy { code: ValidationCode, initial_head_data: HeadData },
 }
 
-type LeasePeriodOf<T> = <T as frame_system::Trait>::BlockNumber;
+type LeasePeriodOf<T> = <T as frame_system::Config>::BlockNumber;
 // Winning data type. This encodes the top bidders of each range together with their bid.
 type WinningData<T> =
-	[Option<(Bidder<<T as frame_system::Trait>::AccountId>, BalanceOf<T>)>; SLOT_RANGE_COUNT];
+	[Option<(Bidder<<T as frame_system::Config>::AccountId>, BalanceOf<T>)>; SLOT_RANGE_COUNT];
 // Winners data type. This encodes each of the final winners of a parachain auction, the parachain
 // index assigned to them, their winning bid and the range that they won.
 type WinnersData<T> =
-	Vec<(Option<NewBidder<<T as frame_system::Trait>::AccountId>>, ParaId, BalanceOf<T>, SlotRange)>;
+	Vec<(Option<NewBidder<<T as frame_system::Config>::AccountId>>, ParaId, BalanceOf<T>, SlotRange)>;
 
 // This module's storage items.
 decl_storage! {
-	trait Store for Module<T: Trait> as Slots {
+	trait Store for Module<T: Config> as Slots {
 		/// The number of auctions that have been started so far.
 		pub AuctionCounter get(fn auction_counter): AuctionIndex;
 
@@ -245,7 +245,7 @@ fn swap_ordered_existence<T: PartialOrd + Ord + Copy>(ids: &mut [T], one: T, oth
 	ids.sort();
 }
 
-impl<T: Trait> SwapAux for Module<T> {
+impl<T: Config> SwapAux for Module<T> {
 	fn ensure_can_swap(one: ParaId, other: ParaId) -> Result<(), &'static str> {
 		if <Onboarding<T>>::contains_key(one) || <Onboarding<T>>::contains_key(other) {
 			Err("can't swap an undeployed parachain")?
@@ -262,8 +262,8 @@ impl<T: Trait> SwapAux for Module<T> {
 
 decl_event!(
 	pub enum Event<T> where
-		AccountId = <T as frame_system::Trait>::AccountId,
-		BlockNumber = <T as frame_system::Trait>::BlockNumber,
+		AccountId = <T as frame_system::Config>::AccountId,
+		BlockNumber = <T as frame_system::Config>::BlockNumber,
 		LeasePeriod = LeasePeriodOf<T>,
 		ParaId = ParaId,
 		Balance = BalanceOf<T>,
@@ -292,7 +292,7 @@ decl_event!(
 );
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// This auction is already in progress.
 		AuctionInProgress,
 		/// The lease period is in the past.
@@ -323,7 +323,7 @@ decl_error! {
 }
 
 decl_module! {
-	pub struct Module<T: Trait> for enum Call where origin: T::Origin {
+	pub struct Module<T: Config> for enum Call where origin: T::Origin {
 		type Error = Error<T>;
 
 		fn deposit_event() = default;
@@ -520,7 +520,7 @@ decl_module! {
 				.ok_or(Error::<T>::ParaNotOnboarding)?;
 			if let IncomingParachain::Fixed{code_hash, code_size, initial_head_data} = details {
 				ensure!(code.0.len() as u32 == code_size, Error::<T>::InvalidCode);
-				ensure!(<T as frame_system::Trait>::Hashing::hash(&code.0) == code_hash, Error::<T>::InvalidCode);
+				ensure!(<T as frame_system::Config>::Hashing::hash(&code.0) == code_hash, Error::<T>::InvalidCode);
 
 				if starts > Self::lease_period_index() {
 					// Hasn't yet begun. Replace the on-boarding entry with the new information.
@@ -542,7 +542,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Deposit currently held for a particular parachain that we administer.
 	fn deposit_held(para_id: &ParaId) -> BalanceOf<T> {
 		<Deposits<T>>::get(para_id).into_iter().max().unwrap_or_else(Zero::zero)
@@ -968,7 +968,7 @@ mod tests {
 		pub const MaximumBlockLength: u32 = 4 * 1024 * 1024;
 		pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 	}
-	impl frame_system::Trait for Test {
+	impl frame_system::Config for Test {
 		type BaseCallFilter = ();
 		type Origin = Origin;
 		type Call = ();
@@ -1000,7 +1000,7 @@ mod tests {
 		pub const ExistentialDeposit: u64 = 1;
 	}
 
-	impl pallet_balances::Trait for Test {
+	impl pallet_balances::Config for Test {
 		type Balance = u64;
 		type Event = ();
 		type DustRemoval = ();
@@ -1074,7 +1074,7 @@ mod tests {
 		pub const EndingPeriod: BlockNumber = 3;
 	}
 
-	impl Trait for Test {
+	impl Config for Test {
 		type Event = ();
 		type Currency = Balances;
 		type Parachains = TestParachains;

polkadot/runtime/kusama/src/lib.rs

@@ -127,7 +127,7 @@ parameter_types! {
 	pub const Version: RuntimeVersion = VERSION;
 }
 
-impl frame_system::Trait for Runtime {
+impl frame_system::Config for Runtime {
 	type BaseCallFilter = BaseFilter;
 	type Origin = Origin;
 	type Call = Call;
@@ -159,7 +159,7 @@ parameter_types! {
 	pub const MaxScheduledPerBlock: u32 = 50;
 }
 
-impl pallet_scheduler::Trait for Runtime {
+impl pallet_scheduler::Config for Runtime {
 	type Event = Event;
 	type Origin = Origin;
 	type PalletsOrigin = OriginCaller;
@@ -175,7 +175,7 @@ parameter_types! {
 	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
 }
 
-impl pallet_babe::Trait for Runtime {
+impl pallet_babe::Config for Runtime {
 	type EpochDuration = EpochDuration;
 	type ExpectedBlockTime = ExpectedBlockTime;
 
@@ -204,7 +204,7 @@ parameter_types! {
 	pub const IndexDeposit: Balance = 1 * DOLLARS;
 }
 
-impl pallet_indices::Trait for Runtime {
+impl pallet_indices::Config for Runtime {
 	type AccountIndex = AccountIndex;
 	type Currency = Balances;
 	type Deposit = IndexDeposit;
@@ -217,7 +217,7 @@ parameter_types! {
 	pub const MaxLocks: u32 = 50;
 }
 
-impl pallet_balances::Trait for Runtime {
+impl pallet_balances::Config for Runtime {
 	type Balance = Balance;
 	type DustRemoval = ();
 	type Event = Event;
@@ -231,7 +231,7 @@ parameter_types! {
 	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
 }
 
-impl pallet_transaction_payment::Trait for Runtime {
+impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = CurrencyAdapter<Balances, DealWithFees<Self>>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = WeightToFee;
@@ -241,7 +241,7 @@ impl pallet_transaction_payment::Trait for Runtime {
 parameter_types! {
 	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
 }
-impl pallet_timestamp::Trait for Runtime {
+impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
@@ -253,7 +253,7 @@ parameter_types! {
 }
 
 // TODO: substrate#2986 implement this properly
-impl pallet_authorship::Trait for Runtime {
+impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
@@ -279,7 +279,7 @@ parameter_types! {
 	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
 }
 
-impl pallet_session::Trait for Runtime {
+impl pallet_session::Config for Runtime {
 	type Event = Event;
 	type ValidatorId = AccountId;
 	type ValidatorIdOf = pallet_staking::StashOf<Self>;
@@ -292,7 +292,7 @@ impl pallet_session::Trait for Runtime {
 	type WeightInfo = weights::pallet_session::WeightInfo<Runtime>;
 }
 
-impl pallet_session::historical::Trait for Runtime {
+impl pallet_session::historical::Config for Runtime {
 	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
 	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
 }
@@ -337,7 +337,7 @@ type SlashCancelOrigin = EnsureOneOf<
 	pallet_collective::EnsureProportionAtLeast<_1, _2, AccountId, CouncilCollective>
 >;
 
-impl pallet_staking::Trait for Runtime {
+impl pallet_staking::Config for Runtime {
 	type Currency = Balances;
 	type UnixTime = Timestamp;
 	type CurrencyToVote = CurrencyToVote;
@@ -379,7 +379,7 @@ parameter_types! {
 	pub const MaxProposals: u32 = 100;
 }
 
-impl pallet_democracy::Trait for Runtime {
+impl pallet_democracy::Config for Runtime {
 	type Proposal = Call;
 	type Event = Event;
 	type Currency = Balances;
@@ -435,7 +435,7 @@ parameter_types! {
 }
 
 type CouncilCollective = pallet_collective::Instance1;
-impl pallet_collective::Trait<CouncilCollective> for Runtime {
+impl pallet_collective::Config<CouncilCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
@@ -458,7 +458,7 @@ parameter_types! {
 // Make sure that there are no more than MaxMembers members elected via phragmen.
 const_assert!(DesiredMembers::get() <= CouncilMaxMembers::get());
 
-impl pallet_elections_phragmen::Trait for Runtime {
+impl pallet_elections_phragmen::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type ChangeMembers = Council;
@@ -483,7 +483,7 @@ parameter_types! {
 }
 
 type TechnicalCollective = pallet_collective::Instance2;
-impl pallet_collective::Trait<TechnicalCollective> for Runtime {
+impl pallet_collective::Config<TechnicalCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
@@ -494,7 +494,7 @@ impl pallet_collective::Trait<TechnicalCollective> for Runtime {
 	type WeightInfo = weights::pallet_collective::WeightInfo<Runtime>;
 }
 
-impl pallet_membership::Trait<pallet_membership::Instance1> for Runtime {
+impl pallet_membership::Config<pallet_membership::Instance1> for Runtime {
 	type Event = Event;
 	type AddOrigin = MoreThanHalfCouncil;
 	type RemoveOrigin = MoreThanHalfCouncil;
@@ -530,7 +530,7 @@ type ApproveOrigin = EnsureOneOf<
 	pallet_collective::EnsureProportionAtLeast<_3, _5, AccountId, CouncilCollective>
 >;
 
-impl pallet_treasury::Trait for Runtime {
+impl pallet_treasury::Config for Runtime {
 	type ModuleId = TreasuryModuleId;
 	type Currency = Balances;
 	type ApproveOrigin = ApproveOrigin;
@@ -560,14 +560,14 @@ parameter_types! {
 	pub OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
 }
 
-impl pallet_offences::Trait for Runtime {
+impl pallet_offences::Config for Runtime {
 	type Event = Event;
 	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
 	type OnOffenceHandler = Staking;
 	type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
-impl pallet_authority_discovery::Trait for Runtime {}
+impl pallet_authority_discovery::Config for Runtime {}
 
 parameter_types! {
 	pub const SessionDuration: BlockNumber = EPOCH_DURATION_IN_BLOCKS as _;
@@ -579,7 +579,7 @@ parameter_types! {
 	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
 }
 
-impl pallet_im_online::Trait for Runtime {
+impl pallet_im_online::Config for Runtime {
 	type AuthorityId = ImOnlineId;
 	type Event = Event;
 	type ReportUnresponsiveness = Offences;
@@ -588,7 +588,7 @@ impl pallet_im_online::Trait for Runtime {
 	type WeightInfo = weights::pallet_im_online::WeightInfo<Runtime>;
 }
 
-impl pallet_grandpa::Trait for Runtime {
+impl pallet_grandpa::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 
@@ -616,7 +616,7 @@ impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for R
 		call: Call,
 		public: <Signature as Verify>::Signer,
 		account: AccountId,
-		nonce: <Runtime as frame_system::Trait>::Index,
+		nonce: <Runtime as frame_system::Config>::Index,
 	) -> Option<(Call, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
 		// take the biggest period possible.
 		let period = BlockHashCount::get()
@@ -666,7 +666,7 @@ parameter_types! {
 	pub Prefix: &'static [u8] = b"Pay KSMs to the Kusama account:";
 }
 
-impl claims::Trait for Runtime {
+impl claims::Config for Runtime {
 	type Event = Event;
 	type VestingSchedule = Vesting;
 	type Prefix = Prefix;
@@ -683,7 +683,7 @@ parameter_types! {
 	pub const MaxRegistrars: u32 = 20;
 }
 
-impl pallet_identity::Trait for Runtime {
+impl pallet_identity::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type Slashed = Treasury;
@@ -698,7 +698,7 @@ impl pallet_identity::Trait for Runtime {
 	type WeightInfo = weights::pallet_identity::WeightInfo<Runtime>;
 }
 
-impl pallet_utility::Trait for Runtime {
+impl pallet_utility::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type WeightInfo = weights::pallet_utility::WeightInfo<Runtime>;
@@ -712,7 +712,7 @@ parameter_types! {
 	pub const MaxSignatories: u16 = 100;
 }
 
-impl pallet_multisig::Trait for Runtime {
+impl pallet_multisig::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -729,7 +729,7 @@ parameter_types! {
 	pub const RecoveryDeposit: Balance = 5 * DOLLARS;
 }
 
-impl pallet_recovery::Trait for Runtime {
+impl pallet_recovery::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -750,7 +750,7 @@ parameter_types! {
 	pub const SocietyModuleId: ModuleId = ModuleId(*b"py/socie");
 }
 
-impl pallet_society::Trait for Runtime {
+impl pallet_society::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type Randomness = RandomnessCollectiveFlip;
@@ -771,7 +771,7 @@ parameter_types! {
 	pub const MinVestedTransfer: Balance = 100 * DOLLARS;
 }
 
-impl pallet_vesting::Trait for Runtime {
+impl pallet_vesting::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type BlockNumberToBalance = ConvertInto;
@@ -874,7 +874,7 @@ impl InstanceFilter<Call> for ProxyType {
 	}
 }
 
-impl pallet_proxy::Trait for Runtime {
+impl pallet_proxy::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -1248,9 +1248,9 @@ sp_api::impl_runtime_apis! {
 			use pallet_offences_benchmarking::Module as OffencesBench;
 			use frame_system_benchmarking::Module as SystemBench;
 
-			impl pallet_session_benchmarking::Trait for Runtime {}
-			impl pallet_offences_benchmarking::Trait for Runtime {}
-			impl frame_system_benchmarking::Trait for Runtime {}
+			impl pallet_session_benchmarking::Config for Runtime {}
+			impl pallet_offences_benchmarking::Config for Runtime {}
+			impl frame_system_benchmarking::Config for Runtime {}
 
 			let whitelist: Vec<TrackedStorageKey> = vec![
 				// Block Number

polkadot/runtime/kusama/src/weights/frame_system.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for frame_system.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> frame_system::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> frame_system::WeightInfo for WeightInfo<T> {
 	fn remark(_b: u32, ) -> Weight {
 		(1_815_000 as Weight)
 	}

polkadot/runtime/kusama/src/weights/pallet_balances.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_balances.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_balances::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	fn transfer() -> Weight {
 		(91_625_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/kusama/src/weights/pallet_collective.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_collective.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_collective::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_collective::WeightInfo for WeightInfo<T> {
 	fn set_members(m: u32, n: u32, p: u32, ) -> Weight {
 		(0 as Weight)
 			.saturating_add((20_744_000 as Weight).saturating_mul(m as Weight))

polkadot/runtime/kusama/src/weights/pallet_democracy.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_democracy.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_democracy::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_democracy::WeightInfo for WeightInfo<T> {
 	fn propose() -> Weight {
 		(73_769_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(3 as Weight))

polkadot/runtime/kusama/src/weights/pallet_elections_phragmen.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_elections_phragmen.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_elections_phragmen::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_elections_phragmen::WeightInfo for WeightInfo<T> {
 	fn vote(v: u32, ) -> Weight {
 		(83_050_000 as Weight)
 			.saturating_add((124_000 as Weight).saturating_mul(v as Weight))

polkadot/runtime/kusama/src/weights/pallet_identity.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_identity.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_identity::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_identity::WeightInfo for WeightInfo<T> {
 	fn add_registrar(r: u32, ) -> Weight {
 		(26_618_000 as Weight)
 			.saturating_add((318_000 as Weight).saturating_mul(r as Weight))

polkadot/runtime/kusama/src/weights/pallet_im_online.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_im_online.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_im_online::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_im_online::WeightInfo for WeightInfo<T> {
 	fn validate_unsigned_and_then_heartbeat(k: u32, e: u32, ) -> Weight {
 		(108_140_000 as Weight)
 			.saturating_add((217_000 as Weight).saturating_mul(k as Weight))

polkadot/runtime/kusama/src/weights/pallet_indices.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_indices.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_indices::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_indices::WeightInfo for WeightInfo<T> {
 	fn claim() -> Weight {
 		(51_086_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/kusama/src/weights/pallet_multisig.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_multisig.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_multisig::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_multisig::WeightInfo for WeightInfo<T> {
 	fn as_multi_threshold_1(z: u32, ) -> Weight {
 		(12_168_000 as Weight)
 			.saturating_add((1_000 as Weight).saturating_mul(z as Weight))

polkadot/runtime/kusama/src/weights/pallet_proxy.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_proxy.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_proxy::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_proxy::WeightInfo for WeightInfo<T> {
 	fn proxy(p: u32, ) -> Weight {
 		(30_797_000 as Weight)
 			.saturating_add((182_000 as Weight).saturating_mul(p as Weight))

polkadot/runtime/kusama/src/weights/pallet_scheduler.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_scheduler.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_scheduler::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_scheduler::WeightInfo for WeightInfo<T> {
 	fn schedule(s: u32, ) -> Weight {
 		(33_450_000 as Weight)
 			.saturating_add((48_000 as Weight).saturating_mul(s as Weight))

polkadot/runtime/kusama/src/weights/pallet_session.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_session.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_session::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_session::WeightInfo for WeightInfo<T> {
 	fn set_keys() -> Weight {
 		(89_426_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(7 as Weight))

polkadot/runtime/kusama/src/weights/pallet_staking.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_staking.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_staking::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
 	fn bond() -> Weight {
 		(91_974_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(5 as Weight))

polkadot/runtime/kusama/src/weights/pallet_timestamp.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_timestamp.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_timestamp::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_timestamp::WeightInfo for WeightInfo<T> {
 	fn set() -> Weight {
 		(10_514_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(2 as Weight))

polkadot/runtime/kusama/src/weights/pallet_treasury.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_treasury.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_treasury::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_treasury::WeightInfo for WeightInfo<T> {
 	fn propose_spend() -> Weight {
 		(52_217_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/kusama/src/weights/pallet_utility.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_utility.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_utility::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_utility::WeightInfo for WeightInfo<T> {
 	fn batch(c: u32, ) -> Weight {
 		(18_717_000 as Weight)
 			.saturating_add((1_995_000 as Weight).saturating_mul(c as Weight))

polkadot/runtime/kusama/src/weights/pallet_vesting.rs

@@ -43,7 +43,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_vesting.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_vesting::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_vesting::WeightInfo for WeightInfo<T> {
 	fn vest_locked(l: u32, ) -> Weight {
 		(54_477_000 as Weight)
 			.saturating_add((129_000 as Weight).saturating_mul(l as Weight))

polkadot/runtime/parachains/src/configuration.rs

@@ -130,24 +130,24 @@ pub struct HostConfiguration<BlockNumber> {
 	pub hrmp_max_message_num_per_candidate: u32,
 }
 
-pub trait Trait: frame_system::Trait { }
+pub trait Config: frame_system::Config { }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Configuration {
+	trait Store for Module<T: Config> as Configuration {
 		/// The active configuration for the current session.
-		Config get(fn config) config(): HostConfiguration<T::BlockNumber>;
+		ActiveConfig get(fn config) config(): HostConfiguration<T::BlockNumber>;
 		/// Pending configuration (if any) for the next session.
 		PendingConfig: Option<HostConfiguration<T::BlockNumber>>;
 	}
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> { }
+	pub enum Error for Module<T: Config> { }
 }
 
 decl_module! {
 	/// The parachains configuration module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		/// Set the validation upgrade frequency.
@@ -506,7 +506,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Called by the initializer to initialize the configuration module.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight {
 		0
@@ -518,7 +518,7 @@ impl<T: Trait> Module<T> {
 	/// Called by the initializer to note that a new session has started.
 	pub(crate) fn initializer_on_new_session(_validators: &[ValidatorId], _queued: &[ValidatorId]) {
 		if let Some(pending) = <Self as Store>::PendingConfig::take() {
-			<Self as Store>::Config::set(pending);
+			<Self as Store>::ActiveConfig::set(pending);
 		}
 	}
 

polkadot/runtime/parachains/src/dmp.rs

@@ -62,10 +62,10 @@ impl fmt::Debug for ProcessedDownwardMessagesAcceptanceErr {
 	}
 }
 
-pub trait Trait: frame_system::Trait + configuration::Trait {}
+pub trait Config: frame_system::Config + configuration::Config {}
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Dmp {
+	trait Store for Module<T: Config> as Dmp {
 		/// Paras that are to be cleaned up at the end of the session.
 		/// The entries are sorted ascending by the para id.
 		OutgoingParas: Vec<ParaId>;
@@ -85,11 +85,11 @@ decl_storage! {
 
 decl_module! {
 	/// The DMP module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin { }
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin { }
 }
 
 /// Routines and getters related to downward message passing.
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Block initialization logic, called by initializer.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight {
 		0

polkadot/runtime/parachains/src/hrmp.rs

@@ -207,14 +207,14 @@ impl fmt::Debug for OutboundHrmpAcceptanceErr {
 	}
 }
 
-pub trait Trait: frame_system::Trait + configuration::Trait + paras::Trait + dmp::Trait {
+pub trait Config: frame_system::Config + configuration::Config + paras::Config + dmp::Config {
 	type Origin: From<crate::Origin>
-		+ From<<Self as frame_system::Trait>::Origin>
-		+ Into<Result<crate::Origin, <Self as Trait>::Origin>>;
+		+ From<<Self as frame_system::Config>::Origin>
+		+ Into<Result<crate::Origin, <Self as Config>::Origin>>;
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Hrmp {
+	trait Store for Module<T: Config> as Hrmp {
 		/// Paras that are to be cleaned up at the end of the session.
 		/// The entries are sorted ascending by the para id.
 		OutgoingParas: Vec<ParaId>;
@@ -286,7 +286,7 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// The sender tried to open a channel to themselves.
 		OpenHrmpChannelToSelf,
 		/// The recipient is not a valid para.
@@ -322,7 +322,7 @@ decl_error! {
 
 decl_module! {
 	/// The HRMP module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		#[weight = 0]
@@ -332,7 +332,7 @@ decl_module! {
 			proposed_max_capacity: u32,
 			proposed_max_message_size: u32,
 		) -> DispatchResult {
-			let origin = ensure_parachain(<T as Trait>::Origin::from(origin))?;
+			let origin = ensure_parachain(<T as Config>::Origin::from(origin))?;
 			Self::init_open_channel(
 				origin,
 				recipient,
@@ -344,14 +344,14 @@ decl_module! {
 
 		#[weight = 0]
 		fn hrmp_accept_open_channel(origin, sender: ParaId) -> DispatchResult {
-			let origin = ensure_parachain(<T as Trait>::Origin::from(origin))?;
+			let origin = ensure_parachain(<T as Config>::Origin::from(origin))?;
 			Self::accept_open_channel(origin, sender)?;
 			Ok(())
 		}
 
 		#[weight = 0]
 		fn hrmp_close_channel(origin, channel_id: HrmpChannelId) -> DispatchResult {
-			let origin = ensure_parachain(<T as Trait>::Origin::from(origin))?;
+			let origin = ensure_parachain(<T as Config>::Origin::from(origin))?;
 			Self::close_channel(origin, channel_id)?;
 			Ok(())
 		}
@@ -359,7 +359,7 @@ decl_module! {
 }
 
 /// Routines and getters related to HRMP.
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Block initialization logic, called by initializer.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight {
 		0

polkadot/runtime/parachains/src/inclusion.rs

@@ -85,19 +85,19 @@ impl<H, N> CandidatePendingAvailability<H, N> {
 	}
 }
 
-pub trait Trait:
-	frame_system::Trait
-	+ paras::Trait
-	+ dmp::Trait
-	+ ump::Trait
-	+ hrmp::Trait
-	+ configuration::Trait
+pub trait Config:
+	frame_system::Config
+	+ paras::Config
+	+ dmp::Config
+	+ ump::Config
+	+ hrmp::Config
+	+ configuration::Config
 {
-	type Event: From<Event<Self>> + Into<<Self as frame_system::Trait>::Event>;
+	type Event: From<Event<Self>> + Into<<Self as frame_system::Config>::Event>;
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as ParaInclusion {
+	trait Store for Module<T: Config> as ParaInclusion {
 		/// The latest bitfield for each validator, referred to by their index in the validator set.
 		AvailabilityBitfields: map hasher(twox_64_concat) ValidatorIndex
 			=> Option<AvailabilityBitfieldRecord<T::BlockNumber>>;
@@ -119,7 +119,7 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Availability bitfield has unexpected size.
 		WrongBitfieldSize,
 		/// Multiple bitfields submitted by same validator or validators out of order by index.
@@ -170,7 +170,7 @@ decl_error! {
 }
 
 decl_event! {
-	pub enum Event<T> where <T as frame_system::Trait>::Hash {
+	pub enum Event<T> where <T as frame_system::Config>::Hash {
 		/// A candidate was backed. [candidate, head_data]
 		CandidateBacked(CandidateReceipt<Hash>, HeadData),
 		/// A candidate was included. [candidate, head_data]
@@ -182,8 +182,8 @@ decl_event! {
 
 decl_module! {
 	/// The parachain-candidate inclusion module.
-	pub struct Module<T: Trait>
-		for enum Call where origin: <T as frame_system::Trait>::Origin
+	pub struct Module<T: Config>
+		for enum Call where origin: <T as frame_system::Config>::Origin
 	{
 		type Error = Error<T>;
 
@@ -193,7 +193,7 @@ decl_module! {
 
 const LOG_TARGET: &str = "parachains_runtime_inclusion";
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Block initialization logic, called by initializer.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight { 0 }
 
@@ -733,7 +733,7 @@ enum AcceptanceCheckErr<BlockNumber> {
 impl<BlockNumber> AcceptanceCheckErr<BlockNumber> {
 	/// Returns the same error so that it can be threaded through a needle of `DispatchError` and
 	/// ultimately returned from a `Dispatchable`.
-	fn strip_into_dispatch_err<T: Trait>(self) -> Error<T> {
+	fn strip_into_dispatch_err<T: Config>(self) -> Error<T> {
 		use AcceptanceCheckErr::*;
 		match self {
 			HeadDataTooLarge => Error::<T>::HeadDataTooLarge,
@@ -748,13 +748,13 @@ impl<BlockNumber> AcceptanceCheckErr<BlockNumber> {
 }
 
 /// A collection of data required for checking a candidate.
-struct CandidateCheckContext<T: Trait> {
+struct CandidateCheckContext<T: Config> {
 	config: configuration::HostConfiguration<T::BlockNumber>,
 	now: T::BlockNumber,
 	relay_parent_number: T::BlockNumber,
 }
 
-impl<T: Trait> CandidateCheckContext<T> {
+impl<T: Config> CandidateCheckContext<T> {
 	fn new() -> Self {
 		let now = <frame_system::Module<T>>::block_number();
 		Self {

polkadot/runtime/parachains/src/inclusion_inherent.rs

@@ -39,10 +39,10 @@ use crate::{
 };
 use inherents::{InherentIdentifier, InherentData, MakeFatalError, ProvideInherent};
 
-pub trait Trait: inclusion::Trait + scheduler::Trait {}
+pub trait Config: inclusion::Config + scheduler::Config {}
 
 decl_storage! {
-	trait Store for Module<T: Trait> as ParaInclusionInherent {
+	trait Store for Module<T: Config> as ParaInclusionInherent {
 		/// Whether the inclusion inherent was included within this block.
 		///
 		/// The `Option<()>` is effectively a bool, but it never hits storage in the `None` variant
@@ -54,7 +54,7 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> {
+	pub enum Error for Module<T: Config> {
 		/// Inclusion inherent called more than once per block.
 		TooManyInclusionInherents,
 	}
@@ -62,7 +62,7 @@ decl_error! {
 
 decl_module! {
 	/// The inclusion inherent module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		fn on_initialize() -> Weight {
@@ -127,7 +127,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> ProvideInherent for Module<T> {
+impl<T: Config> ProvideInherent for Module<T> {
 	type Call = Call<T>;
 	type Error = MakeFatalError<()>;
 	const INHERENT_IDENTIFIER: InherentIdentifier = INCLUSION_INHERENT_IDENTIFIER;

polkadot/runtime/parachains/src/initializer.rs

@@ -57,23 +57,23 @@ struct BufferedSessionChange<N> {
 	session_index: sp_staking::SessionIndex,
 }
 
-pub trait Trait:
-	frame_system::Trait
-	+ configuration::Trait
-	+ paras::Trait
-	+ scheduler::Trait
-	+ inclusion::Trait
-	+ session_info::Trait
-	+ dmp::Trait
-	+ ump::Trait
-	+ hrmp::Trait
+pub trait Config:
+	frame_system::Config
+	+ configuration::Config
+	+ paras::Config
+	+ scheduler::Config
+	+ inclusion::Config
+	+ session_info::Config
+	+ dmp::Config
+	+ ump::Config
+	+ hrmp::Config
 {
 	/// A randomness beacon.
 	type Randomness: Randomness<Self::Hash>;
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Initializer {
+	trait Store for Module<T: Config> as Initializer {
 		/// Whether the parachains modules have been initialized within this block.
 		///
 		/// Semantically a bool, but this guarantees it should never hit the trie,
@@ -95,12 +95,12 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> { }
+	pub enum Error for Module<T: Config> { }
 }
 
 decl_module! {
 	/// The initializer module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 
 		fn on_initialize(now: T::BlockNumber) -> Weight {
@@ -159,7 +159,7 @@ decl_module! {
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	fn apply_new_session(
 		session_index: sp_staking::SessionIndex,
 		validators: Vec<ValidatorId>,
@@ -225,11 +225,11 @@ impl<T: Trait> Module<T> {
 	}
 }
 
-impl<T: Trait> sp_runtime::BoundToRuntimeAppPublic for Module<T> {
+impl<T: Config> sp_runtime::BoundToRuntimeAppPublic for Module<T> {
 	type Public = ValidatorId;
 }
 
-impl<T: pallet_session::Trait + Trait> pallet_session::OneSessionHandler<T::AccountId> for Module<T> {
+impl<T: pallet_session::Config + Config> pallet_session::OneSessionHandler<T::AccountId> for Module<T> {
 	type Key = ValidatorId;
 
 	fn on_genesis_session<'a, I: 'a>(_validators: I)

polkadot/runtime/parachains/src/lib.rs

@@ -45,7 +45,7 @@ mod mock;
 pub use origin::{Origin, ensure_parachain};
 
 /// Schedule a para to be initialized at the start of the next session with the given genesis data.
-pub fn schedule_para_initialize<T: paras::Trait>(
+pub fn schedule_para_initialize<T: paras::Config>(
 	id: primitives::v1::Id,
 	genesis: paras::ParaGenesisArgs,
 ) {
@@ -55,10 +55,10 @@ pub fn schedule_para_initialize<T: paras::Trait>(
 /// Schedule a para to be cleaned up at the start of the next session.
 pub fn schedule_para_cleanup<T>(id: primitives::v1::Id)
 where
-	T: paras::Trait
-	+ dmp::Trait
-	+ ump::Trait
-	+ hrmp::Trait,
+	T: paras::Config
+	+ dmp::Config
+	+ ump::Config
+	+ hrmp::Config,
 {
 	<paras::Module<T>>::schedule_para_cleanup(id);
 	<dmp::Module<T>>::schedule_para_cleanup(id);

polkadot/runtime/parachains/src/mock.rs

@@ -70,7 +70,7 @@ parameter_types! {
 	pub const AvailableBlockRatio: Perbill = Perbill::from_percent(75);
 }
 
-impl frame_system::Trait for Test {
+impl frame_system::Config for Test {
 	type BaseCallFilter = ();
 	type Origin = Origin;
 	type Call = Call;
@@ -98,35 +98,35 @@ impl frame_system::Trait for Test {
 	type SystemWeightInfo = ();
 }
 
-impl crate::initializer::Trait for Test {
+impl crate::initializer::Config for Test {
 	type Randomness = TestRandomness;
 }
 
-impl crate::configuration::Trait for Test { }
+impl crate::configuration::Config for Test { }
 
-impl crate::paras::Trait for Test {
+impl crate::paras::Config for Test {
 	type Origin = Origin;
 }
 
-impl crate::dmp::Trait for Test { }
+impl crate::dmp::Config for Test { }
 
-impl crate::ump::Trait for Test {
+impl crate::ump::Config for Test {
 	type UmpSink = crate::ump::mock_sink::MockUmpSink;
 }
 
-impl crate::hrmp::Trait for Test {
+impl crate::hrmp::Config for Test {
 	type Origin = Origin;
 }
 
-impl crate::scheduler::Trait for Test { }
+impl crate::scheduler::Config for Test { }
 
-impl crate::inclusion::Trait for Test {
+impl crate::inclusion::Config for Test {
 	type Event = TestEvent;
 }
 
-impl crate::session_info::Trait for Test { }
+impl crate::session_info::Config for Test { }
 
-impl crate::session_info::AuthorityDiscoveryTrait for Test {
+impl crate::session_info::AuthorityDiscoveryConfig for Test {
 	fn authorities() -> Vec<AuthorityDiscoveryId> {
 		Vec::new()
 	}

polkadot/runtime/parachains/src/origin.rs

@@ -40,7 +40,7 @@ pub fn ensure_parachain<OuterOrigin>(o: OuterOrigin) -> result::Result<ParaId, B
 }
 
 /// The origin module.
-pub trait Trait: frame_system::Trait {}
+pub trait Config: frame_system::Config {}
 
 frame_support::decl_module! {
 	/// There is no way to register an origin type in `construct_runtime` without a pallet the origin
@@ -49,7 +49,7 @@ frame_support::decl_module! {
 	/// This module fulfills only the single purpose of housing the `Origin` in `construct_runtime`.
 	///
 	// ideally, though, the `construct_runtime` should support a free-standing origin.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {}
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {}
 }
 
 impl From<u32> for Origin {

polkadot/runtime/parachains/src/paras.rs

@@ -45,11 +45,11 @@ use serde::{Serialize, Deserialize};
 
 pub use crate::Origin;
 
-pub trait Trait: frame_system::Trait + configuration::Trait {
+pub trait Config: frame_system::Config + configuration::Config {
 	/// The outer origin type.
 	type Origin: From<Origin>
-		+ From<<Self as frame_system::Trait>::Origin>
-		+ Into<result::Result<Origin, <Self as Trait>::Origin>>;
+		+ From<<Self as frame_system::Config>::Origin>
+		+ Into<result::Result<Origin, <Self as Config>::Origin>>;
 }
 
 // the two key times necessary to track for every code replacement.
@@ -177,7 +177,7 @@ pub struct ParaGenesisArgs {
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Paras {
+	trait Store for Module<T: Config> as Paras {
 		/// All parachains. Ordered ascending by ParaId. Parathreads are not included.
 		Parachains get(fn parachains): Vec<ParaId>;
 		/// All parathreads.
@@ -224,7 +224,7 @@ decl_storage! {
 }
 
 #[cfg(feature = "std")]
-fn build<T: Trait>(config: &GenesisConfig<T>) {
+fn build<T: Config>(config: &GenesisConfig<T>) {
 	let mut parachains: Vec<_> = config.paras
 		.iter()
 		.filter(|(_, args)| args.parachain)
@@ -244,17 +244,17 @@ fn build<T: Trait>(config: &GenesisConfig<T>) {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> { }
+	pub enum Error for Module<T: Config> { }
 }
 
 decl_module! {
 	/// The parachains configuration module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Called by the initializer to initialize the configuration module.
 	pub(crate) fn initializer_initialize(now: T::BlockNumber) -> Weight {
 		Self::prune_old_code(now)

polkadot/runtime/parachains/src/runtime_api_impl/v1.rs

@@ -31,12 +31,12 @@ use frame_support::debug;
 use crate::{initializer, inclusion, scheduler, configuration, paras, session_info, dmp, hrmp};
 
 /// Implementation for the `validators` function of the runtime API.
-pub fn validators<T: initializer::Trait>() -> Vec<ValidatorId> {
+pub fn validators<T: initializer::Config>() -> Vec<ValidatorId> {
 	<inclusion::Module<T>>::validators()
 }
 
 /// Implementation for the `validator_groups` function of the runtime API.
-pub fn validator_groups<T: initializer::Trait>() -> (
+pub fn validator_groups<T: initializer::Config>() -> (
 	Vec<Vec<ValidatorIndex>>,
 	GroupRotationInfo<T::BlockNumber>,
 ) {
@@ -47,7 +47,7 @@ pub fn validator_groups<T: initializer::Trait>() -> (
 }
 
 /// Implementation for the `availability_cores` function of the runtime API.
-pub fn availability_cores<T: initializer::Trait>() -> Vec<CoreState<T::BlockNumber>> {
+pub fn availability_cores<T: initializer::Config>() -> Vec<CoreState<T::BlockNumber>> {
 	let cores = <scheduler::Module<T>>::availability_cores();
 	let parachains = <paras::Module<T>>::parachains();
 	let config = <configuration::Module<T>>::config();
@@ -163,24 +163,24 @@ pub fn availability_cores<T: initializer::Trait>() -> Vec<CoreState<T::BlockNumb
 	core_states
 }
 
-fn with_assumption<Trait, T, F>(
+fn with_assumption<Config, T, F>(
 	para_id: ParaId,
 	assumption: OccupiedCoreAssumption,
 	build: F,
 ) -> Option<T> where
-	Trait: inclusion::Trait,
+	Config: inclusion::Config,
 	F: FnOnce() -> Option<T>,
 {
 	match assumption {
 		OccupiedCoreAssumption::Included => {
-			<inclusion::Module<Trait>>::force_enact(para_id);
+			<inclusion::Module<Config>>::force_enact(para_id);
 			build()
 		}
 		OccupiedCoreAssumption::TimedOut => {
 			build()
 		}
 		OccupiedCoreAssumption::Free => {
-			if <inclusion::Module<Trait>>::pending_availability(para_id).is_some() {
+			if <inclusion::Module<Config>>::pending_availability(para_id).is_some() {
 				None
 			} else {
 				build()
@@ -190,7 +190,7 @@ fn with_assumption<Trait, T, F>(
 }
 
 /// Implementation for the `full_validation_data` function of the runtime API.
-pub fn full_validation_data<T: initializer::Trait>(
+pub fn full_validation_data<T: initializer::Config>(
 	para_id: ParaId,
 	assumption: OccupiedCoreAssumption,
 )
@@ -207,7 +207,7 @@ pub fn full_validation_data<T: initializer::Trait>(
 }
 
 /// Implementation for the `persisted_validation_data` function of the runtime API.
-pub fn persisted_validation_data<T: initializer::Trait>(
+pub fn persisted_validation_data<T: initializer::Config>(
 	para_id: ParaId,
 	assumption: OccupiedCoreAssumption,
 ) -> Option<PersistedValidationData<T::BlockNumber>> {
@@ -219,7 +219,7 @@ pub fn persisted_validation_data<T: initializer::Trait>(
 }
 
 /// Implementation for the `check_validation_outputs` function of the runtime API.
-pub fn check_validation_outputs<T: initializer::Trait>(
+pub fn check_validation_outputs<T: initializer::Config>(
 	para_id: ParaId,
 	outputs: primitives::v1::CandidateCommitments,
 ) -> bool {
@@ -227,7 +227,7 @@ pub fn check_validation_outputs<T: initializer::Trait>(
 }
 
 /// Implementation for the `session_index_for_child` function of the runtime API.
-pub fn session_index_for_child<T: initializer::Trait>() -> SessionIndex {
+pub fn session_index_for_child<T: initializer::Config>() -> SessionIndex {
 	// Just returns the session index from `inclusion`. Runtime APIs follow
 	// initialization so the initializer will have applied any pending session change
 	// which is expected at the child of the block whose context the runtime API was invoked
@@ -239,7 +239,7 @@ pub fn session_index_for_child<T: initializer::Trait>() -> SessionIndex {
 }
 
 /// Implementation for the `validation_code` function of the runtime API.
-pub fn validation_code<T: initializer::Trait>(
+pub fn validation_code<T: initializer::Config>(
 	para_id: ParaId,
 	assumption: OccupiedCoreAssumption,
 ) -> Option<ValidationCode> {
@@ -251,7 +251,7 @@ pub fn validation_code<T: initializer::Trait>(
 }
 
 /// Implementation for the `historical_validation_code` function of the runtime API.
-pub fn historical_validation_code<T: initializer::Trait>(
+pub fn historical_validation_code<T: initializer::Config>(
 	para_id: ParaId,
 	context_height: T::BlockNumber,
 ) -> Option<ValidationCode> {
@@ -259,7 +259,7 @@ pub fn historical_validation_code<T: initializer::Trait>(
 }
 
 /// Implementation for the `candidate_pending_availability` function of the runtime API.
-pub fn candidate_pending_availability<T: initializer::Trait>(para_id: ParaId)
+pub fn candidate_pending_availability<T: initializer::Config>(para_id: ParaId)
 	-> Option<CommittedCandidateReceipt<T::Hash>>
 {
 	<inclusion::Module<T>>::candidate_pending_availability(para_id)
@@ -270,8 +270,8 @@ pub fn candidate_pending_availability<T: initializer::Trait>(para_id: ParaId)
 // this means it can run in a different session than other runtime APIs at the same block.
 pub fn candidate_events<T, F>(extract_event: F) -> Vec<CandidateEvent<T::Hash>>
 where
-	T: initializer::Trait,
-	F: Fn(<T as frame_system::Trait>::Event) -> Option<inclusion::Event<T>>,
+	T: initializer::Config,
+	F: Fn(<T as frame_system::Config>::Event) -> Option<inclusion::Event<T>>,
 {
 	use inclusion::Event as RawEvent;
 
@@ -286,19 +286,19 @@ where
 }
 
 /// Get the session info for the given session, if stored.
-pub fn session_info<T: session_info::Trait>(index: SessionIndex) -> Option<SessionInfo> {
+pub fn session_info<T: session_info::Config>(index: SessionIndex) -> Option<SessionInfo> {
 	<session_info::Module<T>>::session_info(index)
 }
 
 /// Implementation for the `dmq_contents` function of the runtime API.
-pub fn dmq_contents<T: dmp::Trait>(
+pub fn dmq_contents<T: dmp::Config>(
 	recipient: ParaId,
 ) -> Vec<InboundDownwardMessage<T::BlockNumber>> {
 	<dmp::Module<T>>::dmq_contents(recipient)
 }
 
 /// Implementation for the `inbound_hrmp_channels_contents` function of the runtime API.
-pub fn inbound_hrmp_channels_contents<T: hrmp::Trait>(
+pub fn inbound_hrmp_channels_contents<T: hrmp::Config>(
 	recipient: ParaId,
 ) -> BTreeMap<ParaId, Vec<InboundHrmpMessage<T::BlockNumber>>> {
 	<hrmp::Module<T>>::inbound_hrmp_channels_contents(recipient)

polkadot/runtime/parachains/src/scheduler.rs

@@ -153,10 +153,10 @@ impl CoreAssignment {
 	}
 }
 
-pub trait Trait: frame_system::Trait + configuration::Trait + paras::Trait { }
+pub trait Config: frame_system::Config + configuration::Config + paras::Config { }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as ParaScheduler {
+	trait Store for Module<T: Config> as ParaScheduler {
 		/// All the validator groups. One for each core.
 		///
 		/// Bound: The number of cores is the sum of the numbers of parachains and parathread multiplexers.
@@ -190,17 +190,17 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> { }
+	pub enum Error for Module<T: Config> { }
 }
 
 decl_module! {
 	/// The scheduler module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Called by the initializer to initialize the scheduler module.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight {
 		Self::schedule(Vec::new());

polkadot/runtime/parachains/src/session_info.rs

@@ -27,17 +27,17 @@ use frame_support::{
 use crate::{configuration, paras, scheduler};
 use sp_std::{cmp, vec::Vec};
 
-pub trait Trait:
-	frame_system::Trait
-	+ configuration::Trait
-	+ paras::Trait
-	+ scheduler::Trait
-	+ AuthorityDiscoveryTrait
+pub trait Config:
+	frame_system::Config
+	+ configuration::Config
+	+ paras::Config
+	+ scheduler::Config
+	+ AuthorityDiscoveryConfig
 {
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as ParaSessionInfo {
+	trait Store for Module<T: Config> as ParaSessionInfo {
 		/// The earliest session for which previous session info is stored.
 		EarliestStoredSession get(fn earliest_stored_session): SessionIndex;
 		/// Session information in a rolling window.
@@ -48,30 +48,30 @@ decl_storage! {
 }
 
 decl_error! {
-	pub enum Error for Module<T: Trait> { }
+	pub enum Error for Module<T: Config> { }
 }
 
 decl_module! {
 	/// The session info module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 		type Error = Error<T>;
 	}
 }
 
 /// An abstraction for the authority discovery pallet
 /// to help with mock testing.
-pub trait AuthorityDiscoveryTrait {
+pub trait AuthorityDiscoveryConfig {
 	/// Retrieve authority identifiers of the current and next authority set.
 	fn authorities() -> Vec<AuthorityDiscoveryId>;
 }
 
-impl<T: pallet_authority_discovery::Trait> AuthorityDiscoveryTrait for T {
+impl<T: pallet_authority_discovery::Config> AuthorityDiscoveryConfig for T {
 	fn authorities() -> Vec<AuthorityDiscoveryId> {
 		<pallet_authority_discovery::Module<T>>::authorities()
 	}
 }
 
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Handle an incoming session change.
 	pub(crate) fn initializer_on_new_session(
 		notification: &crate::initializer::SessionChangeNotification<T::BlockNumber>
@@ -82,7 +82,7 @@ impl<T: Trait> Module<T> {
 		let n_parachains = <paras::Module<T>>::parachains().len() as u32;
 
 		let validators = notification.validators.clone();
-		let discovery_keys = <T as AuthorityDiscoveryTrait>::authorities();
+		let discovery_keys = <T as AuthorityDiscoveryConfig>::authorities();
 		// FIXME: once we store these keys: https://github.com/paritytech/polkadot/issues/1975
 		let approval_keys = Default::default();
 		let validator_groups = <scheduler::Module<T>>::validator_groups();

polkadot/runtime/parachains/src/ump.rs

@@ -105,13 +105,13 @@ impl fmt::Debug for AcceptanceCheckErr {
 	}
 }
 
-pub trait Trait: frame_system::Trait + configuration::Trait {
+pub trait Config: frame_system::Config + configuration::Config {
 	/// A place where all received upward messages are funneled.
 	type UmpSink: UmpSink;
 }
 
 decl_storage! {
-	trait Store for Module<T: Trait> as Ump {
+	trait Store for Module<T: Config> as Ump {
 		/// Paras that are to be cleaned up at the end of the session.
 		/// The entries are sorted ascending by the para id.
 		OutgoingParas: Vec<ParaId>;
@@ -152,12 +152,12 @@ decl_storage! {
 
 decl_module! {
 	/// The UMP module.
-	pub struct Module<T: Trait> for enum Call where origin: <T as frame_system::Trait>::Origin {
+	pub struct Module<T: Config> for enum Call where origin: <T as frame_system::Config>::Origin {
 	}
 }
 
 /// Routines related to the upward message passing.
-impl<T: Trait> Module<T> {
+impl<T: Config> Module<T> {
 	/// Block initialization logic, called by initializer.
 	pub(crate) fn initializer_initialize(_now: T::BlockNumber) -> Weight {
 		0
@@ -365,7 +365,7 @@ impl QueueCache {
 	///
 	/// - `upward_message` a dequeued message or `None` if the queue _was_ empty.
 	/// - `became_empty` is true if the queue _became_ empty.
-	fn dequeue<T: Trait>(&mut self, para: ParaId) -> (Option<UpwardMessage>, bool) {
+	fn dequeue<T: Config>(&mut self, para: ParaId) -> (Option<UpwardMessage>, bool) {
 		let cache_entry = self.0.entry(para).or_insert_with(|| {
 			let queue = <Module<T> as Store>::RelayDispatchQueues::get(&para);
 			let (count, total_size) = <Module<T> as Store>::RelayDispatchQueueSize::get(&para);
@@ -386,7 +386,7 @@ impl QueueCache {
 	}
 
 	/// Flushes the updated queues into the storage.
-	fn flush<T: Trait>(self) {
+	fn flush<T: Config>(self) {
 		// NOTE we use an explicit method here instead of Drop impl because it has unwanted semantics
 		// within runtime. It is dangerous to use because of double-panics and flushing on a panic
 		// is not necessary as well.
@@ -427,7 +427,7 @@ struct NeedsDispatchCursor {
 }
 
 impl NeedsDispatchCursor {
-	fn new<T: Trait>() -> Self {
+	fn new<T: Config>() -> Self {
 		let needs_dispatch: Vec<ParaId> = <Module<T> as Store>::NeedsDispatch::get();
 		let start_with = <Module<T> as Store>::NextDispatchRoundStartWith::get();
 
@@ -481,7 +481,7 @@ impl NeedsDispatchCursor {
 	}
 
 	/// Flushes the dispatcher state into the persistent storage.
-	fn flush<T: Trait>(self) {
+	fn flush<T: Config>(self) {
 		let next_one = self.peek();
 		<Module<T> as Store>::NextDispatchRoundStartWith::set(next_one);
 		<Module<T> as Store>::NeedsDispatch::put(self.needs_dispatch);

polkadot/runtime/parachains/src/util.rs

@@ -25,7 +25,7 @@ use crate::{configuration, paras, dmp, hrmp};
 /// Make the persisted validation data for a particular parachain.
 ///
 /// This ties together the storage of several modules.
-pub fn make_persisted_validation_data<T: paras::Trait + hrmp::Trait>(
+pub fn make_persisted_validation_data<T: paras::Config + hrmp::Config>(
 	para_id: ParaId,
 ) -> Option<PersistedValidationData<T::BlockNumber>> {
 	let config = <configuration::Module<T>>::config();
@@ -43,7 +43,7 @@ pub fn make_persisted_validation_data<T: paras::Trait + hrmp::Trait>(
 /// Make the transient validation data for a particular parachain.
 ///
 /// This ties together the storage of several modules.
-pub fn make_transient_validation_data<T: paras::Trait + dmp::Trait>(
+pub fn make_transient_validation_data<T: paras::Config + dmp::Config>(
 	para_id: ParaId,
 ) -> Option<TransientValidationData<T::BlockNumber>> {
 	let config = <configuration::Module<T>>::config();

polkadot/runtime/polkadot/src/lib.rs

@@ -140,7 +140,7 @@ parameter_types! {
 	pub const Version: RuntimeVersion = VERSION;
 }
 
-impl frame_system::Trait for Runtime {
+impl frame_system::Config for Runtime {
 	type BaseCallFilter = BaseFilter;
 	type Origin = Origin;
 	type Call = Call;
@@ -172,7 +172,7 @@ parameter_types! {
 	pub const MaxScheduledPerBlock: u32 = 50;
 }
 
-impl pallet_scheduler::Trait for Runtime {
+impl pallet_scheduler::Config for Runtime {
 	type Event = Event;
 	type Origin = Origin;
 	type PalletsOrigin = OriginCaller;
@@ -188,7 +188,7 @@ parameter_types! {
 	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
 }
 
-impl pallet_babe::Trait for Runtime {
+impl pallet_babe::Config for Runtime {
 	type EpochDuration = EpochDuration;
 	type ExpectedBlockTime = ExpectedBlockTime;
 
@@ -217,7 +217,7 @@ parameter_types! {
 	pub const IndexDeposit: Balance = 10 * DOLLARS;
 }
 
-impl pallet_indices::Trait for Runtime {
+impl pallet_indices::Config for Runtime {
 	type AccountIndex = AccountIndex;
 	type Currency = Balances;
 	type Deposit = IndexDeposit;
@@ -230,7 +230,7 @@ parameter_types! {
 	pub const MaxLocks: u32 = 50;
 }
 
-impl pallet_balances::Trait for Runtime {
+impl pallet_balances::Config for Runtime {
 	type Balance = Balance;
 	type DustRemoval = ();
 	type Event = Event;
@@ -244,7 +244,7 @@ parameter_types! {
 	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
 }
 
-impl pallet_transaction_payment::Trait for Runtime {
+impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = CurrencyAdapter<Balances, DealWithFees<Runtime>>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = WeightToFee;
@@ -254,7 +254,7 @@ impl pallet_transaction_payment::Trait for Runtime {
 parameter_types! {
 	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
 }
-impl pallet_timestamp::Trait for Runtime {
+impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
@@ -266,7 +266,7 @@ parameter_types! {
 }
 
 // TODO: substrate#2986 implement this properly
-impl pallet_authorship::Trait for Runtime {
+impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
@@ -287,7 +287,7 @@ parameter_types! {
 	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
 }
 
-impl pallet_session::Trait for Runtime {
+impl pallet_session::Config for Runtime {
 	type Event = Event;
 	type ValidatorId = AccountId;
 	type ValidatorIdOf = pallet_staking::StashOf<Self>;
@@ -300,7 +300,7 @@ impl pallet_session::Trait for Runtime {
 	type WeightInfo = weights::pallet_session::WeightInfo<Runtime>;
 }
 
-impl pallet_session::historical::Trait for Runtime {
+impl pallet_session::historical::Config for Runtime {
 	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
 	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
 }
@@ -344,7 +344,7 @@ type SlashCancelOrigin = EnsureOneOf<
 	pallet_collective::EnsureProportionAtLeast<_3, _4, AccountId, CouncilCollective>
 >;
 
-impl pallet_staking::Trait for Runtime {
+impl pallet_staking::Config for Runtime {
 	type Currency = Balances;
 	type UnixTime = Timestamp;
 	type CurrencyToVote = CurrencyToVote;
@@ -382,7 +382,7 @@ parameter_types! {
 	pub const MaxRegistrars: u32 = 20;
 }
 
-impl pallet_identity::Trait for Runtime {
+impl pallet_identity::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type BasicDeposit = BasicDeposit;
@@ -411,7 +411,7 @@ parameter_types! {
 	pub const MaxProposals: u32 = 100;
 }
 
-impl pallet_democracy::Trait for Runtime {
+impl pallet_democracy::Config for Runtime {
 	type Proposal = Call;
 	type Event = Event;
 	type Currency = Balances;
@@ -480,7 +480,7 @@ parameter_types! {
 }
 
 type CouncilCollective = pallet_collective::Instance1;
-impl pallet_collective::Trait<CouncilCollective> for Runtime {
+impl pallet_collective::Config<CouncilCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
@@ -504,7 +504,7 @@ parameter_types! {
 // Make sure that there are no more than `MaxMembers` members elected via phragmen.
 const_assert!(DesiredMembers::get() <= CouncilMaxMembers::get());
 
-impl pallet_elections_phragmen::Trait for Runtime {
+impl pallet_elections_phragmen::Config for Runtime {
 	type Event = Event;
 	type ModuleId = ElectionsPhragmenModuleId;
 	type Currency = Balances;
@@ -529,7 +529,7 @@ parameter_types! {
 }
 
 type TechnicalCollective = pallet_collective::Instance2;
-impl pallet_collective::Trait<TechnicalCollective> for Runtime {
+impl pallet_collective::Config<TechnicalCollective> for Runtime {
 	type Origin = Origin;
 	type Proposal = Call;
 	type Event = Event;
@@ -540,7 +540,7 @@ impl pallet_collective::Trait<TechnicalCollective> for Runtime {
 	type WeightInfo = weights::pallet_collective::WeightInfo<Runtime>;
 }
 
-impl pallet_membership::Trait<pallet_membership::Instance1> for Runtime {
+impl pallet_membership::Config<pallet_membership::Instance1> for Runtime {
 	type Event = Event;
 	type AddOrigin = MoreThanHalfCouncil;
 	type RemoveOrigin = MoreThanHalfCouncil;
@@ -576,7 +576,7 @@ type ApproveOrigin = EnsureOneOf<
 	pallet_collective::EnsureProportionAtLeast<_3, _5, AccountId, CouncilCollective>
 >;
 
-impl pallet_treasury::Trait for Runtime {
+impl pallet_treasury::Config for Runtime {
 	type ModuleId = TreasuryModuleId;
 	type Currency = Balances;
 	type ApproveOrigin = ApproveOrigin;
@@ -606,14 +606,14 @@ parameter_types! {
 	pub OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
 }
 
-impl pallet_offences::Trait for Runtime {
+impl pallet_offences::Config for Runtime {
 	type Event = Event;
 	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
 	type OnOffenceHandler = Staking;
 	type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
-impl pallet_authority_discovery::Trait for Runtime {}
+impl pallet_authority_discovery::Config for Runtime {}
 
 parameter_types! {
 	pub const SessionDuration: BlockNumber = EPOCH_DURATION_IN_BLOCKS as _;
@@ -625,7 +625,7 @@ parameter_types! {
 	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
 }
 
-impl pallet_im_online::Trait for Runtime {
+impl pallet_im_online::Config for Runtime {
 	type AuthorityId = ImOnlineId;
 	type Event = Event;
 	type SessionDuration = SessionDuration;
@@ -634,7 +634,7 @@ impl pallet_im_online::Trait for Runtime {
 	type WeightInfo = weights::pallet_im_online::WeightInfo<Runtime>;
 }
 
-impl pallet_grandpa::Trait for Runtime {
+impl pallet_grandpa::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 
@@ -662,7 +662,7 @@ impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for R
 		call: Call,
 		public: <Signature as Verify>::Signer,
 		account: AccountId,
-		nonce: <Runtime as frame_system::Trait>::Index,
+		nonce: <Runtime as frame_system::Config>::Index,
 	) -> Option<(Call, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
 		// take the biggest period possible.
 		let period = BlockHashCount::get()
@@ -717,7 +717,7 @@ parameter_types! {
 	pub Prefix: &'static [u8] = b"Pay DOTs to the Polkadot account:";
 }
 
-impl claims::Trait for Runtime {
+impl claims::Config for Runtime {
 	type Event = Event;
 	type VestingSchedule = Vesting;
 	type Prefix = Prefix;
@@ -729,7 +729,7 @@ parameter_types! {
 	pub const MinVestedTransfer: Balance = 100 * DOLLARS;
 }
 
-impl pallet_vesting::Trait for Runtime {
+impl pallet_vesting::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type BlockNumberToBalance = ConvertInto;
@@ -737,7 +737,7 @@ impl pallet_vesting::Trait for Runtime {
 	type WeightInfo = weights::pallet_vesting::WeightInfo<Runtime>;
 }
 
-impl pallet_utility::Trait for Runtime {
+impl pallet_utility::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type WeightInfo = weights::pallet_utility::WeightInfo<Runtime>;
@@ -751,7 +751,7 @@ parameter_types! {
 	pub const MaxSignatories: u16 = 100;
 }
 
-impl pallet_multisig::Trait for Runtime {
+impl pallet_multisig::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -879,7 +879,7 @@ impl InstanceFilter<Call> for ProxyType {
 	}
 }
 
-impl pallet_proxy::Trait for Runtime {
+impl pallet_proxy::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -1243,9 +1243,9 @@ sp_api::impl_runtime_apis! {
 			use pallet_offences_benchmarking::Module as OffencesBench;
 			use frame_system_benchmarking::Module as SystemBench;
 
-			impl pallet_session_benchmarking::Trait for Runtime {}
-			impl pallet_offences_benchmarking::Trait for Runtime {}
-			impl frame_system_benchmarking::Trait for Runtime {}
+			impl pallet_session_benchmarking::Config for Runtime {}
+			impl pallet_offences_benchmarking::Config for Runtime {}
+			impl frame_system_benchmarking::Config for Runtime {}
 
 			let whitelist: Vec<TrackedStorageKey> = vec![
 				// Block Number

polkadot/runtime/polkadot/src/weights/frame_system.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for frame_system.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> frame_system::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> frame_system::WeightInfo for WeightInfo<T> {
 	fn remark(_b: u32, ) -> Weight {
 		(1_851_000 as Weight)
 	}

polkadot/runtime/polkadot/src/weights/pallet_balances.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_balances.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_balances::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	fn transfer() -> Weight {
 		(90_334_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_collective.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_collective.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_collective::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_collective::WeightInfo for WeightInfo<T> {
 	fn set_members(m: u32, n: u32, p: u32, ) -> Weight {
 		(0 as Weight)
 			.saturating_add((20_942_000 as Weight).saturating_mul(m as Weight))

polkadot/runtime/polkadot/src/weights/pallet_democracy.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_democracy.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_democracy::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_democracy::WeightInfo for WeightInfo<T> {
 	fn propose() -> Weight {
 		(73_078_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(3 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_elections_phragmen.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_elections_phragmen.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_elections_phragmen::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_elections_phragmen::WeightInfo for WeightInfo<T> {
 	fn vote(v: u32, ) -> Weight {
 		(85_361_000 as Weight)
 			.saturating_add((113_000 as Weight).saturating_mul(v as Weight))

polkadot/runtime/polkadot/src/weights/pallet_identity.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_identity.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_identity::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_identity::WeightInfo for WeightInfo<T> {
 	fn add_registrar(r: u32, ) -> Weight {
 		(26_935_000 as Weight)
 			.saturating_add((309_000 as Weight).saturating_mul(r as Weight))

polkadot/runtime/polkadot/src/weights/pallet_im_online.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_im_online.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_im_online::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_im_online::WeightInfo for WeightInfo<T> {
 	fn validate_unsigned_and_then_heartbeat(k: u32, e: u32, ) -> Weight {
 		(107_274_000 as Weight)
 			.saturating_add((218_000 as Weight).saturating_mul(k as Weight))

polkadot/runtime/polkadot/src/weights/pallet_indices.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_indices.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_indices::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_indices::WeightInfo for WeightInfo<T> {
 	fn claim() -> Weight {
 		(50_502_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_multisig.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_multisig.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_multisig::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_multisig::WeightInfo for WeightInfo<T> {
 	fn as_multi_threshold_1(z: u32, ) -> Weight {
 		(12_023_000 as Weight)
 			.saturating_add((1_000 as Weight).saturating_mul(z as Weight))

polkadot/runtime/polkadot/src/weights/pallet_proxy.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_proxy.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_proxy::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_proxy::WeightInfo for WeightInfo<T> {
 	fn proxy(p: u32, ) -> Weight {
 		(30_511_000 as Weight)
 			.saturating_add((189_000 as Weight).saturating_mul(p as Weight))

polkadot/runtime/polkadot/src/weights/pallet_scheduler.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_scheduler.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_scheduler::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_scheduler::WeightInfo for WeightInfo<T> {
 	fn schedule(s: u32, ) -> Weight {
 		(33_070_000 as Weight)
 			.saturating_add((43_000 as Weight).saturating_mul(s as Weight))

polkadot/runtime/polkadot/src/weights/pallet_session.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_session.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_session::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_session::WeightInfo for WeightInfo<T> {
 	fn set_keys() -> Weight {
 		(93_498_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(7 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_staking.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_staking.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_staking::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
 	fn bond() -> Weight {
 		(92_188_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(5 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_timestamp.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_timestamp.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_timestamp::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_timestamp::WeightInfo for WeightInfo<T> {
 	fn set() -> Weight {
 		(10_868_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(2 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_treasury.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_treasury.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_treasury::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_treasury::WeightInfo for WeightInfo<T> {
 	fn propose_spend() -> Weight {
 		(52_150_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/polkadot/src/weights/pallet_utility.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_utility.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_utility::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_utility::WeightInfo for WeightInfo<T> {
 	fn batch(c: u32, ) -> Weight {
 		(18_624_000 as Weight)
 			.saturating_add((1_986_000 as Weight).saturating_mul(c as Weight))

polkadot/runtime/polkadot/src/weights/pallet_vesting.rs

@@ -42,7 +42,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_vesting.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_vesting::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_vesting::WeightInfo for WeightInfo<T> {
 	fn vest_locked(l: u32, ) -> Weight {
 		(53_484_000 as Weight)
 			.saturating_add((134_000 as Weight).saturating_mul(l as Weight))

polkadot/runtime/rococo/src/lib.rs

@@ -210,7 +210,7 @@ parameter_types! {
 	pub const Version: RuntimeVersion = VERSION;
 }
 
-impl frame_system::Trait for Runtime {
+impl frame_system::Config for Runtime {
 	type BaseCallFilter = BaseFilter;
 	type Origin = Origin;
 	type Call = Call;
@@ -255,7 +255,7 @@ impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for R
 		call: Call,
 		public: <Signature as Verify>::Signer,
 		account: AccountId,
-		nonce: <Runtime as frame_system::Trait>::Index,
+		nonce: <Runtime as frame_system::Config>::Index,
 	) -> Option<(Call, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
 		// take the biggest period possible.
 		let period = BlockHashCount::get()
@@ -294,7 +294,7 @@ impl frame_system::offchain::SigningTypes for Runtime {
 	type Signature = Signature;
 }
 
-impl pallet_session::historical::Trait for Runtime {
+impl pallet_session::historical::Config for Runtime {
 	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
 	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
 }
@@ -334,7 +334,7 @@ parameter_types! {
 	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
 }
 
-impl pallet_im_online::Trait for Runtime {
+impl pallet_im_online::Config for Runtime {
 	type AuthorityId = ImOnlineId;
 	type Event = Event;
 	type ReportUnresponsiveness = Offences;
@@ -343,7 +343,7 @@ impl pallet_im_online::Trait for Runtime {
 	type WeightInfo = ();
 }
 
-impl pallet_staking::Trait for Runtime {
+impl pallet_staking::Config for Runtime {
 	type Currency = Balances;
 	type UnixTime = Timestamp;
 	type CurrencyToVote = frame_support::traits::U128CurrencyToVote;
@@ -374,7 +374,7 @@ parameter_types! {
 	pub const MaxLocks: u32 = 50;
 }
 
-impl pallet_balances::Trait for Runtime {
+impl pallet_balances::Config for Runtime {
 	type Balance = Balance;
 	type DustRemoval = ();
 	type Event = Event;
@@ -401,19 +401,19 @@ parameter_types! {
 	pub OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
 }
 
-impl pallet_offences::Trait for Runtime {
+impl pallet_offences::Config for Runtime {
 	type Event = Event;
 	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
 	type OnOffenceHandler = Staking;
 	type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
-impl pallet_authority_discovery::Trait for Runtime {}
+impl pallet_authority_discovery::Config for Runtime {}
 
 parameter_types! {
 	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
 }
-impl pallet_timestamp::Trait for Runtime {
+impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
@@ -424,7 +424,7 @@ parameter_types! {
 	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
 }
 
-impl pallet_transaction_payment::Trait for Runtime {
+impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = CurrencyAdapter<Balances, ToAuthor<Runtime>>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = WeightToFee;
@@ -435,7 +435,7 @@ parameter_types! {
 	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
 }
 
-impl pallet_session::Trait for Runtime {
+impl pallet_session::Config for Runtime {
 	type Event = Event;
 	type ValidatorId = AccountId;
 	type ValidatorIdOf = pallet_staking::StashOf<Self>;
@@ -453,7 +453,7 @@ parameter_types! {
 	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
 }
 
-impl pallet_babe::Trait for Runtime {
+impl pallet_babe::Config for Runtime {
 	type EpochDuration = EpochDuration;
 	type ExpectedBlockTime = ExpectedBlockTime;
 
@@ -482,7 +482,7 @@ parameter_types! {
 	pub const IndexDeposit: Balance = 1 * DOLLARS;
 }
 
-impl pallet_indices::Trait for Runtime {
+impl pallet_indices::Config for Runtime {
 	type AccountIndex = AccountIndex;
 	type Currency = Balances;
 	type Deposit = IndexDeposit;
@@ -494,7 +494,7 @@ parameter_types! {
 	pub const AttestationPeriod: BlockNumber = 50;
 }
 
-impl pallet_grandpa::Trait for Runtime {
+impl pallet_grandpa::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 
@@ -518,54 +518,54 @@ parameter_types! {
 }
 
 // TODO: substrate#2986 implement this properly
-impl pallet_authorship::Trait for Runtime {
+impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
 	type EventHandler = (Staking, ImOnline);
 }
 
-impl parachains_origin::Trait for Runtime {}
+impl parachains_origin::Config for Runtime {}
 
-impl parachains_configuration::Trait for Runtime {}
+impl parachains_configuration::Config for Runtime {}
 
-impl parachains_inclusion::Trait for Runtime {
+impl parachains_inclusion::Config for Runtime {
 	type Event = Event;
 }
 
-impl parachains_paras::Trait for Runtime {
+impl parachains_paras::Config for Runtime {
 	type Origin = Origin;
 }
 
-impl parachains_session_info::Trait for Runtime {}
+impl parachains_session_info::Config for Runtime {}
 
-impl parachains_ump::Trait for Runtime {
+impl parachains_ump::Config for Runtime {
 	type UmpSink = (); // TODO: #1873 To be handled by the XCM receiver.
 }
 
-impl parachains_dmp::Trait for Runtime {}
+impl parachains_dmp::Config for Runtime {}
 
-impl parachains_hrmp::Trait for Runtime {
+impl parachains_hrmp::Config for Runtime {
 	type Origin = Origin;
 }
 
-impl parachains_inclusion_inherent::Trait for Runtime {}
+impl parachains_inclusion_inherent::Config for Runtime {}
 
-impl parachains_scheduler::Trait for Runtime {}
+impl parachains_scheduler::Config for Runtime {}
 
-impl parachains_initializer::Trait for Runtime {
+impl parachains_initializer::Config for Runtime {
 	type Randomness = Babe;
 }
 
-impl paras_sudo_wrapper::Trait for Runtime {}
+impl paras_sudo_wrapper::Config for Runtime {}
 
-impl paras_registrar::Trait for Runtime {
+impl paras_registrar::Config for Runtime {
 	type Currency = Balances;
 	type ParathreadDeposit = ParathreadDeposit;
 	type Origin = Origin;
 }
 
-impl pallet_sudo::Trait for Runtime {
+impl pallet_sudo::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 }

polkadot/runtime/test-runtime/src/lib.rs

@@ -123,7 +123,7 @@ parameter_types! {
 	pub const Version: RuntimeVersion = VERSION;
 }
 
-impl frame_system::Trait for Runtime {
+impl frame_system::Config for Runtime {
 	type BaseCallFilter = ();
 	type Origin = Origin;
 	type Call = Call;
@@ -163,7 +163,7 @@ parameter_types! {
 	pub storage ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
 }
 
-impl pallet_babe::Trait for Runtime {
+impl pallet_babe::Config for Runtime {
 	type EpochDuration = EpochDuration;
 	type ExpectedBlockTime = ExpectedBlockTime;
 
@@ -191,7 +191,7 @@ parameter_types! {
 	pub storage IndexDeposit: Balance = 1 * DOLLARS;
 }
 
-impl pallet_indices::Trait for Runtime {
+impl pallet_indices::Config for Runtime {
 	type AccountIndex = AccountIndex;
 	type Currency = Balances;
 	type Deposit = IndexDeposit;
@@ -204,7 +204,7 @@ parameter_types! {
 	pub storage MaxLocks: u32 = 50;
 }
 
-impl pallet_balances::Trait for Runtime {
+impl pallet_balances::Config for Runtime {
 	type Balance = Balance;
 	type DustRemoval = ();
 	type Event = Event;
@@ -218,7 +218,7 @@ parameter_types! {
 	pub storage TransactionByteFee: Balance = 10 * MILLICENTS;
 }
 
-impl pallet_transaction_payment::Trait for Runtime {
+impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = CurrencyAdapter<Balances, ()>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = WeightToFee;
@@ -229,7 +229,7 @@ parameter_types! {
 	pub storage SlotDuration: u64 = SLOT_DURATION;
 	pub storage MinimumPeriod: u64 = SlotDuration::get() / 2;
 }
-impl pallet_timestamp::Trait for Runtime {
+impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
@@ -241,7 +241,7 @@ parameter_types! {
 }
 
 // TODO: substrate#2986 implement this properly
-impl pallet_authorship::Trait for Runtime {
+impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
@@ -266,7 +266,7 @@ parameter_types! {
 	pub storage DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
 }
 
-impl pallet_session::Trait for Runtime {
+impl pallet_session::Config for Runtime {
 	type Event = Event;
 	type ValidatorId = AccountId;
 	type ValidatorIdOf = pallet_staking::StashOf<Self>;
@@ -279,7 +279,7 @@ impl pallet_session::Trait for Runtime {
 	type WeightInfo = ();
 }
 
-impl pallet_session::historical::Trait for Runtime {
+impl pallet_session::historical::Config for Runtime {
 	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
 	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
 }
@@ -310,7 +310,7 @@ parameter_types! {
 	pub MinSolutionScoreBump: Perbill = Perbill::from_rational_approximation(5u32, 10_000);
 }
 
-impl pallet_staking::Trait for Runtime {
+impl pallet_staking::Config for Runtime {
 	type Currency = Balances;
 	type UnixTime = Timestamp;
 	type CurrencyToVote = frame_support::traits::U128CurrencyToVote;
@@ -337,7 +337,7 @@ impl pallet_staking::Trait for Runtime {
 
 }
 
-impl pallet_grandpa::Trait for Runtime {
+impl pallet_grandpa::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 
@@ -363,7 +363,7 @@ impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for R
 		call: Call,
 		public: <Signature as Verify>::Signer,
 		account: AccountId,
-		nonce: <Runtime as frame_system::Trait>::Index,
+		nonce: <Runtime as frame_system::Config>::Index,
 	) -> Option<(Call, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
 		let period = BlockHashCount::get()
 			.checked_next_power_of_two()
@@ -404,14 +404,14 @@ parameter_types! {
 	pub storage OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
 }
 
-impl pallet_offences::Trait for Runtime {
+impl pallet_offences::Config for Runtime {
 	type Event = Event;
 	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
 	type OnOffenceHandler = Staking;
 	type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
-impl pallet_authority_discovery::Trait for Runtime {}
+impl pallet_authority_discovery::Config for Runtime {}
 
 parameter_types! {
 	pub storage LeasePeriod: BlockNumber = 100_000;
@@ -422,7 +422,7 @@ parameter_types! {
 	pub Prefix: &'static [u8] = b"Pay KSMs to the Kusama account:";
 }
 
-impl claims::Trait for Runtime {
+impl claims::Config for Runtime {
 	type Event = Event;
 	type VestingSchedule = Vesting;
 	type Prefix = Prefix;
@@ -433,7 +433,7 @@ parameter_types! {
 	pub storage MinVestedTransfer: Balance = 100 * DOLLARS;
 }
 
-impl pallet_vesting::Trait for Runtime {
+impl pallet_vesting::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type BlockNumberToBalance = ConvertInto;
@@ -441,42 +441,42 @@ impl pallet_vesting::Trait for Runtime {
 	type WeightInfo = ();
 }
 
-impl pallet_sudo::Trait for Runtime {
+impl pallet_sudo::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 }
 
-impl parachains_configuration::Trait for Runtime {}
+impl parachains_configuration::Config for Runtime {}
 
-impl parachains_inclusion::Trait for Runtime {
+impl parachains_inclusion::Config for Runtime {
 	type Event = Event;
 }
 
-impl parachains_inclusion_inherent::Trait for Runtime {}
+impl parachains_inclusion_inherent::Config for Runtime {}
 
-impl parachains_initializer::Trait for Runtime {
+impl parachains_initializer::Config for Runtime {
 	type Randomness = RandomnessCollectiveFlip;
 }
 
-impl parachains_session_info::Trait for Runtime {}
+impl parachains_session_info::Config for Runtime {}
 
-impl parachains_paras::Trait for Runtime {
+impl parachains_paras::Config for Runtime {
 	type Origin = Origin;
 }
 
-impl parachains_dmp::Trait for Runtime {}
+impl parachains_dmp::Config for Runtime {}
 
-impl parachains_ump::Trait for Runtime {
+impl parachains_ump::Config for Runtime {
 	type UmpSink = ();
 }
 
-impl parachains_hrmp::Trait for Runtime {
+impl parachains_hrmp::Config for Runtime {
 	type Origin = Origin;
 }
 
-impl parachains_scheduler::Trait for Runtime {}
+impl parachains_scheduler::Config for Runtime {}
 
-impl paras_sudo_wrapper::Trait for Runtime {}
+impl paras_sudo_wrapper::Config for Runtime {}
 
 construct_runtime! {
 	pub enum Runtime where

polkadot/runtime/westend/src/lib.rs

@@ -118,7 +118,7 @@ parameter_types! {
 	pub const Version: RuntimeVersion = VERSION;
 }
 
-impl frame_system::Trait for Runtime {
+impl frame_system::Config for Runtime {
 	type BaseCallFilter = BaseFilter;
 	type Origin = Origin;
 	type Call = Call;
@@ -150,7 +150,7 @@ parameter_types! {
 	pub const MaxScheduledPerBlock: u32 = 50;
 }
 
-impl pallet_scheduler::Trait for Runtime {
+impl pallet_scheduler::Config for Runtime {
 	type Event = Event;
 	type Origin = Origin;
 	type PalletsOrigin = OriginCaller;
@@ -166,7 +166,7 @@ parameter_types! {
 	pub const ExpectedBlockTime: Moment = MILLISECS_PER_BLOCK;
 }
 
-impl pallet_babe::Trait for Runtime {
+impl pallet_babe::Config for Runtime {
 	type EpochDuration = EpochDuration;
 	type ExpectedBlockTime = ExpectedBlockTime;
 
@@ -195,7 +195,7 @@ parameter_types! {
 	pub const IndexDeposit: Balance = 1 * DOLLARS;
 }
 
-impl pallet_indices::Trait for Runtime {
+impl pallet_indices::Config for Runtime {
 	type AccountIndex = AccountIndex;
 	type Currency = Balances;
 	type Deposit = IndexDeposit;
@@ -208,7 +208,7 @@ parameter_types! {
 	pub const MaxLocks: u32 = 50;
 }
 
-impl pallet_balances::Trait for Runtime {
+impl pallet_balances::Config for Runtime {
 	type Balance = Balance;
 	type DustRemoval = ();
 	type Event = Event;
@@ -222,7 +222,7 @@ parameter_types! {
 	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
 }
 
-impl pallet_transaction_payment::Trait for Runtime {
+impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = CurrencyAdapter<Balances, ToAuthor<Runtime>>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = WeightToFee;
@@ -232,7 +232,7 @@ impl pallet_transaction_payment::Trait for Runtime {
 parameter_types! {
 	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
 }
-impl pallet_timestamp::Trait for Runtime {
+impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Babe;
 	type MinimumPeriod = MinimumPeriod;
@@ -244,7 +244,7 @@ parameter_types! {
 }
 
 // TODO: substrate#2986 implement this properly
-impl pallet_authorship::Trait for Runtime {
+impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Babe>;
 	type UncleGenerations = UncleGenerations;
 	type FilterUncle = ();
@@ -270,7 +270,7 @@ parameter_types! {
 	pub const DisabledValidatorsThreshold: Perbill = Perbill::from_percent(17);
 }
 
-impl pallet_session::Trait for Runtime {
+impl pallet_session::Config for Runtime {
 	type Event = Event;
 	type ValidatorId = AccountId;
 	type ValidatorIdOf = pallet_staking::StashOf<Self>;
@@ -283,7 +283,7 @@ impl pallet_session::Trait for Runtime {
 	type WeightInfo = weights::pallet_session::WeightInfo<Runtime>;
 }
 
-impl pallet_session::historical::Trait for Runtime {
+impl pallet_session::historical::Config for Runtime {
 	type FullIdentification = pallet_staking::Exposure<AccountId, Balance>;
 	type FullIdentificationOf = pallet_staking::ExposureOf<Runtime>;
 }
@@ -317,7 +317,7 @@ parameter_types! {
 		.saturating_sub(ExtrinsicBaseWeight::get());
 }
 
-impl pallet_staking::Trait for Runtime {
+impl pallet_staking::Config for Runtime {
 	type Currency = Balances;
 	type UnixTime = Timestamp;
 	type CurrencyToVote = CurrencyToVote;
@@ -359,14 +359,14 @@ parameter_types! {
 	pub OffencesWeightSoftLimit: Weight = Perbill::from_percent(60) * MaximumBlockWeight::get();
 }
 
-impl pallet_offences::Trait for Runtime {
+impl pallet_offences::Config for Runtime {
 	type Event = Event;
 	type IdentificationTuple = pallet_session::historical::IdentificationTuple<Self>;
 	type OnOffenceHandler = Staking;
 	type WeightSoftLimit = OffencesWeightSoftLimit;
 }
 
-impl pallet_authority_discovery::Trait for Runtime {}
+impl pallet_authority_discovery::Config for Runtime {}
 
 parameter_types! {
 	pub const SessionDuration: BlockNumber = EPOCH_DURATION_IN_BLOCKS as _;
@@ -377,7 +377,7 @@ parameter_types! {
 	pub const ImOnlineUnsignedPriority: TransactionPriority = TransactionPriority::max_value();
 }
 
-impl pallet_im_online::Trait for Runtime {
+impl pallet_im_online::Config for Runtime {
 	type AuthorityId = ImOnlineId;
 	type Event = Event;
 	type ReportUnresponsiveness = Offences;
@@ -386,7 +386,7 @@ impl pallet_im_online::Trait for Runtime {
 	type WeightInfo = weights::pallet_im_online::WeightInfo<Runtime>;
 }
 
-impl pallet_grandpa::Trait for Runtime {
+impl pallet_grandpa::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 
@@ -414,7 +414,7 @@ impl<LocalCall> frame_system::offchain::CreateSignedTransaction<LocalCall> for R
 		call: Call,
 		public: <Signature as Verify>::Signer,
 		account: AccountId,
-		nonce: <Runtime as frame_system::Trait>::Index,
+		nonce: <Runtime as frame_system::Config>::Index,
 	) -> Option<(Call, <UncheckedExtrinsic as ExtrinsicT>::SignaturePayload)> {
 		// take the biggest period possible.
 		let period = BlockHashCount::get()
@@ -470,7 +470,7 @@ parameter_types! {
 	pub const MaxRegistrars: u32 = 20;
 }
 
-impl pallet_identity::Trait for Runtime {
+impl pallet_identity::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type Slashed = ();
@@ -485,7 +485,7 @@ impl pallet_identity::Trait for Runtime {
 	type WeightInfo = weights::pallet_identity::WeightInfo<Runtime>;
 }
 
-impl pallet_utility::Trait for Runtime {
+impl pallet_utility::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type WeightInfo = weights::pallet_utility::WeightInfo<Runtime>;
@@ -499,7 +499,7 @@ parameter_types! {
 	pub const MaxSignatories: u16 = 100;
 }
 
-impl pallet_multisig::Trait for Runtime {
+impl pallet_multisig::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -516,7 +516,7 @@ parameter_types! {
 	pub const RecoveryDeposit: Balance = 5 * DOLLARS;
 }
 
-impl pallet_recovery::Trait for Runtime {
+impl pallet_recovery::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -530,7 +530,7 @@ parameter_types! {
 	pub const MinVestedTransfer: Balance = 100 * DOLLARS;
 }
 
-impl pallet_vesting::Trait for Runtime {
+impl pallet_vesting::Config for Runtime {
 	type Event = Event;
 	type Currency = Balances;
 	type BlockNumberToBalance = ConvertInto;
@@ -538,7 +538,7 @@ impl pallet_vesting::Trait for Runtime {
 	type WeightInfo = weights::pallet_vesting::WeightInfo<Runtime>;
 }
 
-impl pallet_sudo::Trait for Runtime {
+impl pallet_sudo::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 }
@@ -628,7 +628,7 @@ impl InstanceFilter<Call> for ProxyType {
 	}
 }
 
-impl pallet_proxy::Trait for Runtime {
+impl pallet_proxy::Config for Runtime {
 	type Event = Event;
 	type Call = Call;
 	type Currency = Balances;
@@ -992,9 +992,9 @@ sp_api::impl_runtime_apis! {
 			use pallet_offences_benchmarking::Module as OffencesBench;
 			use frame_system_benchmarking::Module as SystemBench;
 
-			impl pallet_session_benchmarking::Trait for Runtime {}
-			impl pallet_offences_benchmarking::Trait for Runtime {}
-			impl frame_system_benchmarking::Trait for Runtime {}
+			impl pallet_session_benchmarking::Config for Runtime {}
+			impl pallet_offences_benchmarking::Config for Runtime {}
+			impl frame_system_benchmarking::Config for Runtime {}
 
 			let whitelist: Vec<TrackedStorageKey> = vec![
 				// Block Number

polkadot/runtime/westend/src/weights/frame_system.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for frame_system.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> frame_system::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> frame_system::WeightInfo for WeightInfo<T> {
 	fn remark(_b: u32, ) -> Weight {
 		(1_859_000 as Weight)
 	}

polkadot/runtime/westend/src/weights/pallet_balances.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_balances.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_balances::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_balances::WeightInfo for WeightInfo<T> {
 	fn transfer() -> Weight {
 		(92_296_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/westend/src/weights/pallet_identity.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_identity.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_identity::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_identity::WeightInfo for WeightInfo<T> {
 	fn add_registrar(r: u32, ) -> Weight {
 		(26_425_000 as Weight)
 			.saturating_add((296_000 as Weight).saturating_mul(r as Weight))

polkadot/runtime/westend/src/weights/pallet_im_online.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_im_online.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_im_online::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_im_online::WeightInfo for WeightInfo<T> {
 	fn validate_unsigned_and_then_heartbeat(k: u32, e: u32, ) -> Weight {
 		(108_057_000 as Weight)
 			.saturating_add((217_000 as Weight).saturating_mul(k as Weight))

polkadot/runtime/westend/src/weights/pallet_indices.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_indices.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_indices::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_indices::WeightInfo for WeightInfo<T> {
 	fn claim() -> Weight {
 		(51_356_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(1 as Weight))

polkadot/runtime/westend/src/weights/pallet_multisig.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_multisig.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_multisig::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_multisig::WeightInfo for WeightInfo<T> {
 	fn as_multi_threshold_1(z: u32, ) -> Weight {
 		(12_253_000 as Weight)
 			.saturating_add((1_000 as Weight).saturating_mul(z as Weight))

polkadot/runtime/westend/src/weights/pallet_proxy.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_proxy.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_proxy::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_proxy::WeightInfo for WeightInfo<T> {
 	fn proxy(p: u32, ) -> Weight {
 		(29_891_000 as Weight)
 			.saturating_add((182_000 as Weight).saturating_mul(p as Weight))

polkadot/runtime/westend/src/weights/pallet_scheduler.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_scheduler.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_scheduler::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_scheduler::WeightInfo for WeightInfo<T> {
 	fn schedule(s: u32, ) -> Weight {
 		(33_042_000 as Weight)
 			.saturating_add((43_000 as Weight).saturating_mul(s as Weight))

polkadot/runtime/westend/src/weights/pallet_session.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_session.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_session::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_session::WeightInfo for WeightInfo<T> {
 	fn set_keys() -> Weight {
 		(89_357_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(7 as Weight))

polkadot/runtime/westend/src/weights/pallet_staking.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_staking.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_staking::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_staking::WeightInfo for WeightInfo<T> {
 	fn bond() -> Weight {
 		(92_588_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(5 as Weight))

polkadot/runtime/westend/src/weights/pallet_timestamp.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_timestamp.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_timestamp::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_timestamp::WeightInfo for WeightInfo<T> {
 	fn set() -> Weight {
 		(9_830_000 as Weight)
 			.saturating_add(T::DbWeight::get().reads(2 as Weight))

polkadot/runtime/westend/src/weights/pallet_utility.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_utility.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_utility::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_utility::WeightInfo for WeightInfo<T> {
 	fn batch(c: u32, ) -> Weight {
 		(18_268_000 as Weight)
 			.saturating_add((1_504_000 as Weight).saturating_mul(c as Weight))

polkadot/runtime/westend/src/weights/pallet_vesting.rs

@@ -41,7 +41,7 @@ use sp_std::marker::PhantomData;
 
 /// Weight functions for pallet_vesting.
 pub struct WeightInfo<T>(PhantomData<T>);
-impl<T: frame_system::Trait> pallet_vesting::WeightInfo for WeightInfo<T> {
+impl<T: frame_system::Config> pallet_vesting::WeightInfo for WeightInfo<T> {
 	fn vest_locked(l: u32, ) -> Weight {
 		(52_570_000 as Weight)
 			.saturating_add((130_000 as Weight).saturating_mul(l as Weight))