lib.rs

	pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
);
/// Unchecked extrinsic type as expected by this runtime.
pub type UncheckedExtrinsic = generic::UncheckedExtrinsic<Address, Call, Signature, SignedExtra>;
/// Extrinsic type that has already been checked.
pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Nonce, Call>;
/// Executive: handles dispatch to the various modules.
pub type Executive = frame_executive::Executive<
	Runtime,
	Block,
	frame_system::ChainContext<Runtime>,
	Runtime,
	AllModules,
	CustomOnRuntimeUpgrade
>;
/// The payload being signed in the transactions.
pub type SignedPayload = generic::SignedPayload<Call, SignedExtra>;

#[cfg(not(feature = "disable-runtime-api"))]
sp_api::impl_runtime_apis! {
	impl sp_api::Core<Block> for Runtime {
		fn version() -> RuntimeVersion {
			VERSION
		}

		fn execute_block(block: Block) {
			Executive::execute_block(block)
		}

		fn initialize_block(header: &<Block as BlockT>::Header) {
			Executive::initialize_block(header)
		}
	}

	impl sp_api::Metadata<Block> for Runtime {
		fn metadata() -> OpaqueMetadata {
			Runtime::metadata().into()
		}
	}

	impl block_builder_api::BlockBuilder<Block> for Runtime {
		fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {
			Executive::apply_extrinsic(extrinsic)
		}

		fn finalize_block() -> <Block as BlockT>::Header {
			Executive::finalize_block()
		}

		fn inherent_extrinsics(data: inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {
			data.create_extrinsics()
		}

		fn check_inherents(
			block: Block,
			data: inherents::InherentData,
		) -> inherents::CheckInherentsResult {
			data.check_extrinsics(&block)
		}

		fn random_seed() -> <Block as BlockT>::Hash {
			RandomnessCollectiveFlip::random_seed()
		}
	}

	impl tx_pool_api::runtime_api::TaggedTransactionQueue<Block> for Runtime {
		fn validate_transaction(
			source: TransactionSource,
			tx: <Block as BlockT>::Extrinsic,
		) -> TransactionValidity {
			Executive::validate_transaction(source, tx)
		}
	}

	impl offchain_primitives::OffchainWorkerApi<Block> for Runtime {
		fn offchain_worker(header: &<Block as BlockT>::Header) {
			Executive::offchain_worker(header)
		}
	}

	impl primitives::v1::ParachainHost<Block, Hash, BlockNumber> for Runtime {
		fn validators() -> Vec<ValidatorId> {
			Vec::new()
		}

		fn validator_groups() -> (Vec<Vec<ValidatorIndex>>, GroupRotationInfo<BlockNumber>) {
			(Vec::new(), GroupRotationInfo { session_start_block: 0, group_rotation_frequency: 0, now: 0 })
		}

		fn availability_cores() -> Vec<CoreState<BlockNumber>> {
			Vec::new()
		}

		fn full_validation_data(_: Id, _: OccupiedCoreAssumption)
			-> Option<ValidationData<BlockNumber>> {
			None
		}

		fn persisted_validation_data(_: Id, _: OccupiedCoreAssumption)
			-> Option<PersistedValidationData<BlockNumber>> {
			None
		}

		fn check_validation_outputs(
			_: Id,
			_: primitives::v1::ValidationOutputs,
		) -> Result<(), primitives::v1::CheckValidationOutputsError> {
			Err(primitives::v1::CheckValidationOutputsError::HeadDataTooLarge)
		}

		fn session_index_for_child() -> SessionIndex {
			0
		}

		fn validation_code(_: Id, _: OccupiedCoreAssumption) -> Option<ValidationCode> {
			None
		}

		fn historical_validation_code(_: Id, _: BlockNumber) -> Option<ValidationCode> {
			None
		}

		fn candidate_pending_availability(_: Id) -> Option<CommittedCandidateReceipt<Hash>> {
			None
		}

		fn candidate_events() -> Vec<CandidateEvent<Hash>> {
			Vec::new()
		}

		fn validator_discovery(_: Vec<ValidatorId>) -> Vec<Option<AuthorityDiscoveryId>> {
			Vec::new()
		}

		fn dmq_contents(
			_recipient: Id,
		) -> Vec<primitives::v1::InboundDownwardMessage<BlockNumber>> {
			Vec::new()
		}
	}

	impl fg_primitives::GrandpaApi<Block> for Runtime {
		fn grandpa_authorities() -> Vec<(GrandpaId, u64)> {
			Grandpa::grandpa_authorities()
		}

		fn submit_report_equivocation_unsigned_extrinsic(
			equivocation_proof: fg_primitives::EquivocationProof<
				<Block as BlockT>::Hash,
				sp_runtime::traits::NumberFor<Block>,
			>,
			key_owner_proof: fg_primitives::OpaqueKeyOwnershipProof,
		) -> Option<()> {
			let key_owner_proof = key_owner_proof.decode()?;

			Grandpa::submit_unsigned_equivocation_report(
				equivocation_proof,
				key_owner_proof,
			)
		}

		fn generate_key_ownership_proof(
			_set_id: fg_primitives::SetId,
			authority_id: fg_primitives::AuthorityId,
		) -> Option<fg_primitives::OpaqueKeyOwnershipProof> {
			use codec::Encode;

			Historical::prove((fg_primitives::KEY_TYPE, authority_id))
				.map(|p| p.encode())
				.map(fg_primitives::OpaqueKeyOwnershipProof::new)
		}
	}

	impl babe_primitives::BabeApi<Block> for Runtime {
		fn configuration() -> babe_primitives::BabeGenesisConfiguration {
			// The choice of `c` parameter (where `1 - c` represents the
			// probability of a slot being empty), is done in accordance to the
			// slot duration and expected target block time, for safely
			// resisting network delays of maximum two seconds.
			// <https://research.web3.foundation/en/latest/polkadot/BABE/Babe/#6-practical-results>
			babe_primitives::BabeGenesisConfiguration {
				slot_duration: Babe::slot_duration(),
				epoch_length: EpochDuration::get(),
				c: PRIMARY_PROBABILITY,
				genesis_authorities: Babe::authorities(),
				randomness: Babe::randomness(),
				allowed_slots: babe_primitives::AllowedSlots::PrimaryAndSecondaryPlainSlots,
			}
		}

		fn current_epoch_start() -> babe_primitives::SlotNumber {
			Babe::current_epoch_start()
		}

		fn generate_key_ownership_proof(
			_slot_number: babe_primitives::SlotNumber,
			authority_id: babe_primitives::AuthorityId,
		) -> Option<babe_primitives::OpaqueKeyOwnershipProof> {
			use codec::Encode;

			Historical::prove((babe_primitives::KEY_TYPE, authority_id))
				.map(|p| p.encode())
				.map(babe_primitives::OpaqueKeyOwnershipProof::new)
		}

		fn submit_report_equivocation_unsigned_extrinsic(
			equivocation_proof: babe_primitives::EquivocationProof<<Block as BlockT>::Header>,
			key_owner_proof: babe_primitives::OpaqueKeyOwnershipProof,
		) -> Option<()> {
			let key_owner_proof = key_owner_proof.decode()?;

			Babe::submit_unsigned_equivocation_report(
				equivocation_proof,
				key_owner_proof,
			)
		}
	}

	impl authority_discovery_primitives::AuthorityDiscoveryApi<Block> for Runtime {
		fn authorities() -> Vec<AuthorityDiscoveryId> {
			AuthorityDiscovery::authorities()
		}
	}

	impl sp_session::SessionKeys<Block> for Runtime {
		fn generate_session_keys(seed: Option<Vec<u8>>) -> Vec<u8> {
			SessionKeys::generate(seed)
		}

		fn decode_session_keys(
			encoded: Vec<u8>,
		) -> Option<Vec<(Vec<u8>, sp_core::crypto::KeyTypeId)>> {
			SessionKeys::decode_into_raw_public_keys(&encoded)
		}
	}

	impl frame_system_rpc_runtime_api::AccountNonceApi<Block, AccountId, Nonce> for Runtime {
		fn account_nonce(account: AccountId) -> Nonce {
			System::account_nonce(account)
		}
	}

	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentApi<
		Block,
		Balance,
	> for Runtime {
		fn query_info(uxt: <Block as BlockT>::Extrinsic, len: u32) -> RuntimeDispatchInfo<Balance> {
			TransactionPayment::query_info(uxt, len)
		}
	}

	#[cfg(feature = "runtime-benchmarks")]
	impl frame_benchmarking::Benchmark<Block> for Runtime {
		fn dispatch_benchmark(
			config: frame_benchmarking::BenchmarkConfig
		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, RuntimeString> {
			use frame_benchmarking::{Benchmarking, BenchmarkBatch, add_benchmark, TrackedStorageKey};
			// Trying to add benchmarks directly to the Session Pallet caused cyclic dependency issues.
			// To get around that, we separated the Session benchmarks into its own crate, which is why
			// we need these two lines below.
			use pallet_session_benchmarking::Module as SessionBench;
			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 {}

			let whitelist: Vec<TrackedStorageKey> = vec![
				// Block Number
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef702a5c1b19ab7a04f536c519aca4983ac").to_vec().into(),
				// Total Issuance
				hex_literal::hex!("c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80").to_vec().into(),
				// Execution Phase
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7ff553b5a9862a516939d82b3d3d8661a").to_vec().into(),
				// Event Count
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef70a98fdbe9ce6c55837576c60c7af3850").to_vec().into(),
				// System Events
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7").to_vec().into(),
				// Treasury Account
				hex_literal::hex!("26aa394eea5630e07c48ae0c9558cef7b99d880ec681799c0cf30e8886371da95ecffd7b6c0f78751baa9d281e0bfa3a6d6f646c70792f74727372790000000000000000000000000000000000000000").to_vec().into(),
			];

			let mut batches = Vec::<BenchmarkBatch>::new();
			let params = (&config, &whitelist);
			// Polkadot
			add_benchmark!(params, batches, claims, Claims);
			// Substrate
			add_benchmark!(params, batches, pallet_balances, Balances);
			add_benchmark!(params, batches, pallet_collective, Council);
			add_benchmark!(params, batches, pallet_democracy, Democracy);
			add_benchmark!(params, batches, pallet_elections_phragmen, ElectionsPhragmen);
			add_benchmark!(params, batches, pallet_identity, Identity);
			add_benchmark!(params, batches, pallet_im_online, ImOnline);
			add_benchmark!(params, batches, pallet_indices, Indices);
			add_benchmark!(params, batches, pallet_multisig, Multisig);
			add_benchmark!(params, batches, pallet_offences, OffencesBench::<Runtime>);
			add_benchmark!(params, batches, pallet_proxy, Proxy);
			add_benchmark!(params, batches, pallet_scheduler, Scheduler);
			add_benchmark!(params, batches, pallet_session, SessionBench::<Runtime>);
			add_benchmark!(params, batches, pallet_staking, Staking);
			add_benchmark!(params, batches, frame_system, SystemBench::<Runtime>);
			add_benchmark!(params, batches, pallet_timestamp, Timestamp);
			add_benchmark!(params, batches, pallet_treasury, Treasury);
			add_benchmark!(params, batches, pallet_utility, Utility);
			add_benchmark!(params, batches, pallet_vesting, Vesting);

			if batches.is_empty() { return Err("Benchmark not found for this pallet.".into()) }
			Ok(batches)
		}
	}
}

#[cfg(test)]
mod test_fees {
	use super::*;
	use frame_support::weights::WeightToFeePolynomial;
	use frame_support::storage::StorageValue;
	use sp_runtime::FixedPointNumber;
	use frame_support::weights::GetDispatchInfo;
	use codec::Encode;
	use pallet_transaction_payment::Multiplier;
	use separator::Separatable;


	#[test]
	#[ignore]
	fn block_cost() {
		let raw_fee = WeightToFee::calc(&MaximumBlockWeight::get());

		println!(
			"Full Block weight == {} // WeightToFee(full_block) == {} plank",
			MaximumBlockWeight::get(),
			raw_fee.separated_string(),
		);
	}

	#[test]
	#[ignore]
	fn transfer_cost_min_multiplier() {
		let min_multiplier = runtime_common::MinimumMultiplier::get();
		let call = <pallet_balances::Call<Runtime>>::transfer_keep_alive(Default::default(), Default::default());
		let info = call.get_dispatch_info();
		// convert to outer call.
		let call = Call::Balances(call);
		let len = call.using_encoded(|e| e.len()) as u32;

		let mut ext = sp_io::TestExternalities::new_empty();
		ext.execute_with(|| {
			pallet_transaction_payment::NextFeeMultiplier::put(min_multiplier);
			let fee = TransactionPayment::compute_fee(len, &info, 0);
			println!(
				"weight = {:?} // multiplier = {:?} // full transfer fee = {:?}",
				info.weight.separated_string(),
				pallet_transaction_payment::NextFeeMultiplier::get(),
				fee.separated_string(),
			);
		});

		ext.execute_with(|| {
			let mul = Multiplier::saturating_from_rational(1, 1000_000_000u128);
			pallet_transaction_payment::NextFeeMultiplier::put(mul);
			let fee = TransactionPayment::compute_fee(len, &info, 0);
			println!(
				"weight = {:?} // multiplier = {:?} // full transfer fee = {:?}",
				info.weight.separated_string(),
				pallet_transaction_payment::NextFeeMultiplier::get(),
				fee.separated_string(),
			);
		});

		ext.execute_with(|| {
			let mul = Multiplier::saturating_from_rational(1, 1u128);
			pallet_transaction_payment::NextFeeMultiplier::put(mul);
			let fee = TransactionPayment::compute_fee(len, &info, 0);
			println!(
				"weight = {:?} // multiplier = {:?} // full transfer fee = {:?}",
				info.weight.separated_string(),
				pallet_transaction_payment::NextFeeMultiplier::get(),
				fee.separated_string(),
			);
		});
	}
}