lib.rs

	}

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

	impl sp_consensus_grandpa::GrandpaApi<Block> for Runtime {
		fn grandpa_authorities() -> sp_consensus_grandpa::AuthorityList {
			Grandpa::grandpa_authorities()
		}

		fn current_set_id() -> sp_consensus_grandpa::SetId {
			Grandpa::current_set_id()
		}

		fn submit_report_equivocation_unsigned_extrinsic(
			equivocation_proof: sp_consensus_grandpa::EquivocationProof<
				<Block as BlockT>::Hash,
				NumberFor<Block>,
			>,
			key_owner_proof: sp_consensus_grandpa::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: sp_consensus_grandpa::SetId,
			authority_id: GrandpaId,
		) -> Option<sp_consensus_grandpa::OpaqueKeyOwnershipProof> {
			use codec::Encode;

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

	impl pallet_nomination_pools_runtime_api::NominationPoolsApi<Block, AccountId, Balance> for Runtime {
		fn pending_rewards(who: AccountId) -> Balance {
			NominationPools::api_pending_rewards(who).unwrap_or_default()
		}

		fn points_to_balance(pool_id: pallet_nomination_pools::PoolId, points: Balance) -> Balance {
			NominationPools::api_points_to_balance(pool_id, points)
		}

		fn balance_to_points(pool_id: pallet_nomination_pools::PoolId, new_funds: Balance) -> Balance {
			NominationPools::api_balance_to_points(pool_id, new_funds)
		}
	}

	impl pallet_staking_runtime_api::StakingApi<Block, Balance> for Runtime {
		fn nominations_quota(balance: Balance) -> u32 {
			Staking::api_nominations_quota(balance)
		}
	}

	impl sp_consensus_babe::BabeApi<Block> for Runtime {
		fn configuration() -> sp_consensus_babe::BabeConfiguration {
			let epoch_config = Babe::epoch_config().unwrap_or(BABE_GENESIS_EPOCH_CONFIG);
			sp_consensus_babe::BabeConfiguration {
				slot_duration: Babe::slot_duration(),
				epoch_length: EpochDuration::get(),
				c: epoch_config.c,
				authorities: Babe::authorities().to_vec(),
				randomness: Babe::randomness(),
				allowed_slots: epoch_config.allowed_slots,
			}
		}

		fn current_epoch_start() -> sp_consensus_babe::Slot {
			Babe::current_epoch_start()
		}

		fn current_epoch() -> sp_consensus_babe::Epoch {
			Babe::current_epoch()
		}

		fn next_epoch() -> sp_consensus_babe::Epoch {
			Babe::next_epoch()
		}

		fn generate_key_ownership_proof(
			_slot: sp_consensus_babe::Slot,
			authority_id: sp_consensus_babe::AuthorityId,
		) -> Option<sp_consensus_babe::OpaqueKeyOwnershipProof> {
			use codec::Encode;

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

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

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

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

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

	impl assets_api::AssetsApi<
		Block,
		AccountId,
		Balance,
		u32,
	> for Runtime
	{
		fn account_balances(account: AccountId) -> Vec<(u32, Balance)> {
			Assets::account_balances(account)
		}
	}

	impl pallet_contracts::ContractsApi<Block, AccountId, Balance, BlockNumber, Hash> for Runtime
	{
		fn call(
			origin: AccountId,
			dest: AccountId,
			value: Balance,
			gas_limit: Option<Weight>,
			storage_deposit_limit: Option<Balance>,
			input_data: Vec<u8>,
		) -> pallet_contracts_primitives::ContractExecResult<Balance> {
			let gas_limit = gas_limit.unwrap_or(RuntimeBlockWeights::get().max_block);
			Contracts::bare_call(
				origin,
				dest,
				value,
				gas_limit,
				storage_deposit_limit,
				input_data,
				true,
				pallet_contracts::Determinism::Enforced,
			)
		}

		fn instantiate(
			origin: AccountId,
			value: Balance,
			gas_limit: Option<Weight>,
			storage_deposit_limit: Option<Balance>,
			code: pallet_contracts_primitives::Code<Hash>,
			data: Vec<u8>,
			salt: Vec<u8>,
		) -> pallet_contracts_primitives::ContractInstantiateResult<AccountId, Balance>
		{
			let gas_limit = gas_limit.unwrap_or(RuntimeBlockWeights::get().max_block);
			Contracts::bare_instantiate(
				origin,
				value,
				gas_limit,
				storage_deposit_limit,
				code,
				data,
				salt,
				true
			)
		}

		fn upload_code(
			origin: AccountId,
			code: Vec<u8>,
			storage_deposit_limit: Option<Balance>,
			determinism: pallet_contracts::Determinism,
		) -> pallet_contracts_primitives::CodeUploadResult<Hash, Balance>
		{
			Contracts::bare_upload_code(
				origin,
				code,
				storage_deposit_limit,
				determinism,
			)
		}

		fn get_storage(
			address: AccountId,
			key: Vec<u8>,
		) -> pallet_contracts_primitives::GetStorageResult {
			Contracts::get_storage(
				address,
				key
			)
		}
	}

	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)
		}
		fn query_fee_details(uxt: <Block as BlockT>::Extrinsic, len: u32) -> FeeDetails<Balance> {
			TransactionPayment::query_fee_details(uxt, len)
		}
		fn query_weight_to_fee(weight: Weight) -> Balance {
			TransactionPayment::weight_to_fee(weight)
		}
		fn query_length_to_fee(length: u32) -> Balance {
			TransactionPayment::length_to_fee(length)
		}
	}

	impl pallet_transaction_payment_rpc_runtime_api::TransactionPaymentCallApi<Block, Balance, RuntimeCall>
		for Runtime
	{
		fn query_call_info(call: RuntimeCall, len: u32) -> RuntimeDispatchInfo<Balance> {
			TransactionPayment::query_call_info(call, len)
		}
		fn query_call_fee_details(call: RuntimeCall, len: u32) -> FeeDetails<Balance> {
			TransactionPayment::query_call_fee_details(call, len)
		}
		fn query_weight_to_fee(weight: Weight) -> Balance {
			TransactionPayment::weight_to_fee(weight)
		}
		fn query_length_to_fee(length: u32) -> Balance {
			TransactionPayment::length_to_fee(length)
		}
	}

	impl pallet_nfts_runtime_api::NftsApi<Block, AccountId, u32, u32> for Runtime {
		fn owner(collection: u32, item: u32) -> Option<AccountId> {
			<Nfts as Inspect<AccountId>>::owner(&collection, &item)
		}

		fn collection_owner(collection: u32) -> Option<AccountId> {
			<Nfts as Inspect<AccountId>>::collection_owner(&collection)
		}

		fn attribute(
			collection: u32,
			item: u32,
			key: Vec<u8>,
		) -> Option<Vec<u8>> {
			<Nfts as Inspect<AccountId>>::attribute(&collection, &item, &key)
		}

		fn custom_attribute(
			account: AccountId,
			collection: u32,
			item: u32,
			key: Vec<u8>,
		) -> Option<Vec<u8>> {
			<Nfts as Inspect<AccountId>>::custom_attribute(
				&account,
				&collection,
				&item,
				&key,
			)
		}

		fn system_attribute(
			collection: u32,
			item: u32,
			key: Vec<u8>,
		) -> Option<Vec<u8>> {
			<Nfts as Inspect<AccountId>>::system_attribute(&collection, &item, &key)
		}

		fn collection_attribute(collection: u32, key: Vec<u8>) -> Option<Vec<u8>> {
			<Nfts as Inspect<AccountId>>::collection_attribute(&collection, &key)
		}
	}

	impl pallet_mmr::primitives::MmrApi<
		Block,
		mmr::Hash,
		BlockNumber,
	> for Runtime {
		fn mmr_root() -> Result<mmr::Hash, mmr::Error> {
			Ok(Mmr::mmr_root())
		}

		fn mmr_leaf_count() -> Result<mmr::LeafIndex, mmr::Error> {
			Ok(Mmr::mmr_leaves())
		}

		fn generate_proof(
			block_numbers: Vec<BlockNumber>,
			best_known_block_number: Option<BlockNumber>,
		) -> Result<(Vec<mmr::EncodableOpaqueLeaf>, mmr::Proof<mmr::Hash>), mmr::Error> {
			Mmr::generate_proof(block_numbers, best_known_block_number).map(
				|(leaves, proof)| {
					(
						leaves
							.into_iter()
							.map(|leaf| mmr::EncodableOpaqueLeaf::from_leaf(&leaf))
							.collect(),
						proof,
					)
				},
			)
		}

		fn verify_proof(leaves: Vec<mmr::EncodableOpaqueLeaf>, proof: mmr::Proof<mmr::Hash>)
			-> Result<(), mmr::Error>
		{
			let leaves = leaves.into_iter().map(|leaf|
				leaf.into_opaque_leaf()
				.try_decode()
				.ok_or(mmr::Error::Verify)).collect::<Result<Vec<mmr::Leaf>, mmr::Error>>()?;
			Mmr::verify_leaves(leaves, proof)
		}

		fn verify_proof_stateless(
			root: mmr::Hash,
			leaves: Vec<mmr::EncodableOpaqueLeaf>,
			proof: mmr::Proof<mmr::Hash>
		) -> Result<(), mmr::Error> {
			let nodes = leaves.into_iter().map(|leaf|mmr::DataOrHash::Data(leaf.into_opaque_leaf())).collect();
			pallet_mmr::verify_leaves_proof::<mmr::Hashing, _>(root, nodes, proof)
		}
	}

	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>, KeyTypeId)>> {
			SessionKeys::decode_into_raw_public_keys(&encoded)
		}
	}

	#[cfg(feature = "try-runtime")]
	impl frame_try_runtime::TryRuntime<Block> for Runtime {
		fn on_runtime_upgrade(checks: frame_try_runtime::UpgradeCheckSelect) -> (Weight, Weight) {
			// NOTE: intentional unwrap: we don't want to propagate the error backwards, and want to
			// have a backtrace here. If any of the pre/post migration checks fail, we shall stop
			// right here and right now.
			let weight = Executive::try_runtime_upgrade(checks).unwrap();
			(weight, RuntimeBlockWeights::get().max_block)
		}

		fn execute_block(
			block: Block,
			state_root_check: bool,
			signature_check: bool,
			select: frame_try_runtime::TryStateSelect
		) -> Weight {
			// NOTE: intentional unwrap: we don't want to propagate the error backwards, and want to
			// have a backtrace here.
			Executive::try_execute_block(block, state_root_check, signature_check, select).unwrap()
		}
	}

	#[cfg(feature = "runtime-benchmarks")]
	impl frame_benchmarking::Benchmark<Block> for Runtime {
		fn benchmark_metadata(extra: bool) -> (
			Vec<frame_benchmarking::BenchmarkList>,
			Vec<frame_support::traits::StorageInfo>,
		) {
			use frame_benchmarking::{baseline, Benchmarking, BenchmarkList};
			use frame_support::traits::StorageInfoTrait;

			// 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::Pallet as SessionBench;
			use pallet_offences_benchmarking::Pallet as OffencesBench;
			use pallet_election_provider_support_benchmarking::Pallet as EPSBench;
			use frame_system_benchmarking::Pallet as SystemBench;
			use baseline::Pallet as BaselineBench;
			use pallet_nomination_pools_benchmarking::Pallet as NominationPoolsBench;

			let mut list = Vec::<BenchmarkList>::new();
			list_benchmarks!(list, extra);

			let storage_info = AllPalletsWithSystem::storage_info();

			(list, storage_info)
		}

		fn dispatch_benchmark(
			config: frame_benchmarking::BenchmarkConfig
		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
			use frame_benchmarking::{baseline, Benchmarking, BenchmarkBatch,  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::Pallet as SessionBench;
			use pallet_offences_benchmarking::Pallet as OffencesBench;
			use pallet_election_provider_support_benchmarking::Pallet as EPSBench;
			use frame_system_benchmarking::Pallet as SystemBench;
			use baseline::Pallet as BaselineBench;
			use pallet_nomination_pools_benchmarking::Pallet as NominationPoolsBench;

			impl pallet_session_benchmarking::Config for Runtime {}
			impl pallet_offences_benchmarking::Config for Runtime {}
			impl pallet_election_provider_support_benchmarking::Config for Runtime {}
			impl frame_system_benchmarking::Config for Runtime {}
			impl baseline::Config for Runtime {}
			impl pallet_nomination_pools_benchmarking::Config for Runtime {}

			use frame_support::traits::WhitelistedStorageKeys;
			let mut whitelist: Vec<TrackedStorageKey> = AllPalletsWithSystem::whitelisted_storage_keys();

			// Treasury Account
			// TODO: this is manual for now, someday we might be able to use a
			// macro for this particular key
			let treasury_key = frame_system::Account::<Runtime>::hashed_key_for(Treasury::account_id());
			whitelist.push(treasury_key.to_vec().into());

			let mut batches = Vec::<BenchmarkBatch>::new();
			let params = (&config, &whitelist);
			add_benchmarks!(params, batches);
			Ok(batches)
		}
	}
}

#[cfg(test)]
mod tests {
	use super::*;
	use frame_election_provider_support::NposSolution;
	use frame_support::traits::WhitelistedStorageKeys;
	use frame_system::offchain::CreateSignedTransaction;
	use sp_core::hexdisplay::HexDisplay;
	use sp_runtime::UpperOf;
	use std::collections::HashSet;

	#[test]
	fn check_whitelist() {
		let whitelist: HashSet<String> = AllPalletsWithSystem::whitelisted_storage_keys()
			.iter()
			.map(|e| HexDisplay::from(&e.key).to_string())
			.collect();

		// Block Number
		assert!(
			whitelist.contains("26aa394eea5630e07c48ae0c9558cef702a5c1b19ab7a04f536c519aca4983ac")
		);
		// Total Issuance
		assert!(
			whitelist.contains("c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80")
		);
		// Execution Phase
		assert!(
			whitelist.contains("26aa394eea5630e07c48ae0c9558cef7ff553b5a9862a516939d82b3d3d8661a")
		);
		// Event Count
		assert!(
			whitelist.contains("26aa394eea5630e07c48ae0c9558cef70a98fdbe9ce6c55837576c60c7af3850")
		);
		// System Events
		assert!(
			whitelist.contains("26aa394eea5630e07c48ae0c9558cef780d41e5e16056765bc8461851072c9d7")
		);
		// System BlockWeight
		assert!(
			whitelist.contains("26aa394eea5630e07c48ae0c9558cef734abf5cb34d6244378cddbf18e849d96")
		);
	}

	#[test]
	fn validate_transaction_submitter_bounds() {
		fn is_submit_signed_transaction<T>()
		where
			T: CreateSignedTransaction<RuntimeCall>,
		{
		}

		is_submit_signed_transaction::<Runtime>();
	}

	#[test]
	fn perbill_as_onchain_accuracy() {
		type OnChainAccuracy =
			<<Runtime as pallet_election_provider_multi_phase::MinerConfig>::Solution as NposSolution>::Accuracy;
		let maximum_chain_accuracy: Vec<UpperOf<OnChainAccuracy>> = (0..MaxNominations::get())
			.map(|_| <UpperOf<OnChainAccuracy>>::from(OnChainAccuracy::one().deconstruct()))
			.collect();
		let _: UpperOf<OnChainAccuracy> =
			maximum_chain_accuracy.iter().fold(0, |acc, x| acc.checked_add(*x).unwrap());
	}

	#[test]
	fn call_size() {
		let size = core::mem::size_of::<RuntimeCall>();
		assert!(
			size <= CALL_PARAMS_MAX_SIZE,
			"size of RuntimeCall {} is more than {CALL_PARAMS_MAX_SIZE} bytes.
			 Some calls have too big arguments, use Box to reduce the size of RuntimeCall.
			 If the limit is too strong, maybe consider increase the limit.",
			size,
		);
	}
}