Use real rust type for pallet alias in runtime macro (paritytech#4769)

Fixes paritytech#4723. Also,
closes paritytech#4622

As stated in the linked issue, this PR adds the ability to use a real
rust type for pallet alias in the new `runtime` macro:
```rust
#[runtime::pallet_index(0)]
pub type System = frame_system::Pallet<Runtime>;
```

Please note that the current syntax still continues to be supported.

CC: @shawntabrizi @kianenigma

---------

Co-authored-by: command-bot <>
Co-authored-by: Bastian Köcher <[email protected]>

prdoc/pr_4769.prdoc

@@ -0,0 +1,20 @@
+title: Use real rust type for pallet alias in `runtime` macro
+
+doc:
+  - audience: Runtime Dev
+    description: |
+      This PR adds the ability to use a real rust type for pallet alias in the new `runtime` macro:
+      ```rust
+      #[runtime::pallet_index(0)]
+      pub type System = frame_system::Pallet<Runtime>;
+      ```
+
+      Please note that the current syntax still continues to be supported.
+
+crates:
+  - name: frame-support-procedural
+    bump: patch
+  - name: frame-support
+    bump: patch
+  - name: minimal-template-runtime
+    bump: patch

substrate/bin/node/runtime/src/lib.rs

@@ -2241,248 +2241,248 @@ mod runtime {
 	pub struct Runtime;
 
 	#[runtime::pallet_index(0)]
-	pub type System = frame_system;
+	pub type System = frame_system::Pallet<Runtime>;
 
 	#[runtime::pallet_index(1)]
-	pub type Utility = pallet_utility;
+	pub type Utility = pallet_utility::Pallet<Runtime>;
 
 	#[runtime::pallet_index(2)]
-	pub type Babe = pallet_babe;
+	pub type Babe = pallet_babe::Pallet<Runtime>;
 
 	#[runtime::pallet_index(3)]
-	pub type Timestamp = pallet_timestamp;
+	pub type Timestamp = pallet_timestamp::Pallet<Runtime>;
 
 	// Authorship must be before session in order to note author in the correct session and era
 	// for im-online and staking.
 	#[runtime::pallet_index(4)]
-	pub type Authorship = pallet_authorship;
+	pub type Authorship = pallet_authorship::Pallet<Runtime>;
 
 	#[runtime::pallet_index(5)]
-	pub type Indices = pallet_indices;
+	pub type Indices = pallet_indices::Pallet<Runtime>;
 
 	#[runtime::pallet_index(6)]
-	pub type Balances = pallet_balances;
+	pub type Balances = pallet_balances::Pallet<Runtime>;
 
 	#[runtime::pallet_index(7)]
-	pub type TransactionPayment = pallet_transaction_payment;
+	pub type TransactionPayment = pallet_transaction_payment::Pallet<Runtime>;
 
 	#[runtime::pallet_index(8)]
-	pub type AssetTxPayment = pallet_asset_tx_payment;
+	pub type AssetTxPayment = pallet_asset_tx_payment::Pallet<Runtime>;
 
 	#[runtime::pallet_index(9)]
-	pub type AssetConversionTxPayment = pallet_asset_conversion_tx_payment;
+	pub type AssetConversionTxPayment = pallet_asset_conversion_tx_payment::Pallet<Runtime>;
 
 	#[runtime::pallet_index(10)]
-	pub type ElectionProviderMultiPhase = pallet_election_provider_multi_phase;
+	pub type ElectionProviderMultiPhase = pallet_election_provider_multi_phase::Pallet<Runtime>;
 
 	#[runtime::pallet_index(11)]
-	pub type Staking = pallet_staking;
+	pub type Staking = pallet_staking::Pallet<Runtime>;
 
 	#[runtime::pallet_index(12)]
-	pub type Session = pallet_session;
+	pub type Session = pallet_session::Pallet<Runtime>;
 
 	#[runtime::pallet_index(13)]
-	pub type Democracy = pallet_democracy;
+	pub type Democracy = pallet_democracy::Pallet<Runtime>;
 
 	#[runtime::pallet_index(14)]
-	pub type Council = pallet_collective<Instance1>;
+	pub type Council = pallet_collective::Pallet<Runtime, Instance1>;
 
 	#[runtime::pallet_index(15)]
-	pub type TechnicalCommittee = pallet_collective<Instance2>;
+	pub type TechnicalCommittee = pallet_collective::Pallet<Runtime, Instance2>;
 
 	#[runtime::pallet_index(16)]
-	pub type Elections = pallet_elections_phragmen;
+	pub type Elections = pallet_elections_phragmen::Pallet<Runtime>;
 
 	#[runtime::pallet_index(17)]
-	pub type TechnicalMembership = pallet_membership<Instance1>;
+	pub type TechnicalMembership = pallet_membership::Pallet<Runtime, Instance1>;
 
 	#[runtime::pallet_index(18)]
-	pub type Grandpa = pallet_grandpa;
+	pub type Grandpa = pallet_grandpa::Pallet<Runtime>;
 
 	#[runtime::pallet_index(19)]
-	pub type Treasury = pallet_treasury;
+	pub type Treasury = pallet_treasury::Pallet<Runtime>;
 
 	#[runtime::pallet_index(20)]
-	pub type AssetRate = pallet_asset_rate;
+	pub type AssetRate = pallet_asset_rate::Pallet<Runtime>;
 
 	#[runtime::pallet_index(21)]
-	pub type Contracts = pallet_contracts;
+	pub type Contracts = pallet_contracts::Pallet<Runtime>;
 
 	#[runtime::pallet_index(22)]
-	pub type Sudo = pallet_sudo;
+	pub type Sudo = pallet_sudo::Pallet<Runtime>;
 
 	#[runtime::pallet_index(23)]
-	pub type ImOnline = pallet_im_online;
+	pub type ImOnline = pallet_im_online::Pallet<Runtime>;
 
 	#[runtime::pallet_index(24)]
-	pub type AuthorityDiscovery = pallet_authority_discovery;
+	pub type AuthorityDiscovery = pallet_authority_discovery::Pallet<Runtime>;
 
 	#[runtime::pallet_index(25)]
-	pub type Offences = pallet_offences;
+	pub type Offences = pallet_offences::Pallet<Runtime>;
 
 	#[runtime::pallet_index(26)]
-	pub type Historical = pallet_session_historical;
+	pub type Historical = pallet_session_historical::Pallet<Runtime>;
 
 	#[runtime::pallet_index(27)]
-	pub type RandomnessCollectiveFlip = pallet_insecure_randomness_collective_flip;
+	pub type RandomnessCollectiveFlip = pallet_insecure_randomness_collective_flip::Pallet<Runtime>;
 
 	#[runtime::pallet_index(28)]
-	pub type Identity = pallet_identity;
+	pub type Identity = pallet_identity::Pallet<Runtime>;
 
 	#[runtime::pallet_index(29)]
-	pub type Society = pallet_society;
+	pub type Society = pallet_society::Pallet<Runtime>;
 
 	#[runtime::pallet_index(30)]
-	pub type Recovery = pallet_recovery;
+	pub type Recovery = pallet_recovery::Pallet<Runtime>;
 
 	#[runtime::pallet_index(31)]
-	pub type Vesting = pallet_vesting;
+	pub type Vesting = pallet_vesting::Pallet<Runtime>;
 
 	#[runtime::pallet_index(32)]
-	pub type Scheduler = pallet_scheduler;
+	pub type Scheduler = pallet_scheduler::Pallet<Runtime>;
 
 	#[runtime::pallet_index(33)]
-	pub type Glutton = pallet_glutton;
+	pub type Glutton = pallet_glutton::Pallet<Runtime>;
 
 	#[runtime::pallet_index(34)]
-	pub type Preimage = pallet_preimage;
+	pub type Preimage = pallet_preimage::Pallet<Runtime>;
 
 	#[runtime::pallet_index(35)]
-	pub type Proxy = pallet_proxy;
+	pub type Proxy = pallet_proxy::Pallet<Runtime>;
 
 	#[runtime::pallet_index(36)]
-	pub type Multisig = pallet_multisig;
+	pub type Multisig = pallet_multisig::Pallet<Runtime>;
 
 	#[runtime::pallet_index(37)]
-	pub type Bounties = pallet_bounties;
+	pub type Bounties = pallet_bounties::Pallet<Runtime>;
 
 	#[runtime::pallet_index(38)]
-	pub type Tips = pallet_tips;
+	pub type Tips = pallet_tips::Pallet<Runtime>;
 
 	#[runtime::pallet_index(39)]
-	pub type Assets = pallet_assets<Instance1>;
+	pub type Assets = pallet_assets::Pallet<Runtime, Instance1>;
 
 	#[runtime::pallet_index(40)]
-	pub type PoolAssets = pallet_assets<Instance2>;
+	pub type PoolAssets = pallet_assets::Pallet<Runtime, Instance2>;
 
 	#[runtime::pallet_index(41)]
-	pub type Beefy = pallet_beefy;
+	pub type Beefy = pallet_beefy::Pallet<Runtime>;
 
 	// MMR leaf construction must be after session in order to have a leaf's next_auth_set
 	// refer to block<N>. See issue polkadot-fellows/runtimes#160 for details.
 	#[runtime::pallet_index(42)]
-	pub type Mmr = pallet_mmr;
+	pub type Mmr = pallet_mmr::Pallet<Runtime>;
 
 	#[runtime::pallet_index(43)]
-	pub type MmrLeaf = pallet_beefy_mmr;
+	pub type MmrLeaf = pallet_beefy_mmr::Pallet<Runtime>;
 
 	#[runtime::pallet_index(44)]
-	pub type Lottery = pallet_lottery;
+	pub type Lottery = pallet_lottery::Pallet<Runtime>;
 
 	#[runtime::pallet_index(45)]
-	pub type Nis = pallet_nis;
+	pub type Nis = pallet_nis::Pallet<Runtime>;
 
 	#[runtime::pallet_index(46)]
-	pub type Uniques = pallet_uniques;
+	pub type Uniques = pallet_uniques::Pallet<Runtime>;
 
 	#[runtime::pallet_index(47)]
-	pub type Nfts = pallet_nfts;
+	pub type Nfts = pallet_nfts::Pallet<Runtime>;
 
 	#[runtime::pallet_index(48)]
-	pub type NftFractionalization = pallet_nft_fractionalization;
+	pub type NftFractionalization = pallet_nft_fractionalization::Pallet<Runtime>;
 
 	#[runtime::pallet_index(49)]
-	pub type Salary = pallet_salary;
+	pub type Salary = pallet_salary::Pallet<Runtime>;
 
 	#[runtime::pallet_index(50)]
-	pub type CoreFellowship = pallet_core_fellowship;
+	pub type CoreFellowship = pallet_core_fellowship::Pallet<Runtime>;
 
 	#[runtime::pallet_index(51)]
-	pub type TransactionStorage = pallet_transaction_storage;
+	pub type TransactionStorage = pallet_transaction_storage::Pallet<Runtime>;
 
 	#[runtime::pallet_index(52)]
-	pub type VoterList = pallet_bags_list<Instance1>;
+	pub type VoterList = pallet_bags_list::Pallet<Runtime, Instance1>;
 
 	#[runtime::pallet_index(53)]
-	pub type StateTrieMigration = pallet_state_trie_migration;
+	pub type StateTrieMigration = pallet_state_trie_migration::Pallet<Runtime>;
 
 	#[runtime::pallet_index(54)]
-	pub type ChildBounties = pallet_child_bounties;
+	pub type ChildBounties = pallet_child_bounties::Pallet<Runtime>;
 
 	#[runtime::pallet_index(55)]
-	pub type Referenda = pallet_referenda;
+	pub type Referenda = pallet_referenda::Pallet<Runtime>;
 
 	#[runtime::pallet_index(56)]
-	pub type Remark = pallet_remark;
+	pub type Remark = pallet_remark::Pallet<Runtime>;
 
 	#[runtime::pallet_index(57)]
-	pub type RootTesting = pallet_root_testing;
+	pub type RootTesting = pallet_root_testing::Pallet<Runtime>;
 
 	#[runtime::pallet_index(58)]
-	pub type ConvictionVoting = pallet_conviction_voting;
+	pub type ConvictionVoting = pallet_conviction_voting::Pallet<Runtime>;
 
 	#[runtime::pallet_index(59)]
-	pub type Whitelist = pallet_whitelist;
+	pub type Whitelist = pallet_whitelist::Pallet<Runtime>;
 
 	#[runtime::pallet_index(60)]
-	pub type AllianceMotion = pallet_collective<Instance3>;
+	pub type AllianceMotion = pallet_collective::Pallet<Runtime, Instance3>;
 
 	#[runtime::pallet_index(61)]
-	pub type Alliance = pallet_alliance;
+	pub type Alliance = pallet_alliance::Pallet<Runtime>;
 
 	#[runtime::pallet_index(62)]
-	pub type NominationPools = pallet_nomination_pools;
+	pub type NominationPools = pallet_nomination_pools::Pallet<Runtime>;
 
 	#[runtime::pallet_index(63)]
-	pub type RankedPolls = pallet_referenda<Instance2>;
+	pub type RankedPolls = pallet_referenda::Pallet<Runtime, Instance2>;
 
 	#[runtime::pallet_index(64)]
-	pub type RankedCollective = pallet_ranked_collective;
+	pub type RankedCollective = pallet_ranked_collective::Pallet<Runtime>;
 
 	#[runtime::pallet_index(65)]
-	pub type AssetConversion = pallet_asset_conversion;
+	pub type AssetConversion = pallet_asset_conversion::Pallet<Runtime>;
 
 	#[runtime::pallet_index(66)]
-	pub type FastUnstake = pallet_fast_unstake;
+	pub type FastUnstake = pallet_fast_unstake::Pallet<Runtime>;
 
 	#[runtime::pallet_index(67)]
-	pub type MessageQueue = pallet_message_queue;
+	pub type MessageQueue = pallet_message_queue::Pallet<Runtime>;
 
 	#[runtime::pallet_index(68)]
-	pub type Pov = frame_benchmarking_pallet_pov;
+	pub type Pov = frame_benchmarking_pallet_pov::Pallet<Runtime>;
 
 	#[runtime::pallet_index(69)]
-	pub type TxPause = pallet_tx_pause;
+	pub type TxPause = pallet_tx_pause::Pallet<Runtime>;
 
 	#[runtime::pallet_index(70)]
-	pub type SafeMode = pallet_safe_mode;
+	pub type SafeMode = pallet_safe_mode::Pallet<Runtime>;
 
 	#[runtime::pallet_index(71)]
-	pub type Statement = pallet_statement;
+	pub type Statement = pallet_statement::Pallet<Runtime>;
 
 	#[runtime::pallet_index(72)]
-	pub type MultiBlockMigrations = pallet_migrations;
+	pub type MultiBlockMigrations = pallet_migrations::Pallet<Runtime>;
 
 	#[runtime::pallet_index(73)]
-	pub type Broker = pallet_broker;
+	pub type Broker = pallet_broker::Pallet<Runtime>;
 
 	#[runtime::pallet_index(74)]
-	pub type TasksExample = pallet_example_tasks;
+	pub type TasksExample = pallet_example_tasks::Pallet<Runtime>;
 
 	#[runtime::pallet_index(75)]
-	pub type Mixnet = pallet_mixnet;
+	pub type Mixnet = pallet_mixnet::Pallet<Runtime>;
 
 	#[runtime::pallet_index(76)]
-	pub type Parameters = pallet_parameters;
+	pub type Parameters = pallet_parameters::Pallet<Runtime>;
 
 	#[runtime::pallet_index(77)]
-	pub type SkipFeelessPayment = pallet_skip_feeless_payment;
+	pub type SkipFeelessPayment = pallet_skip_feeless_payment::Pallet<Runtime>;
 
 	#[runtime::pallet_index(78)]
-	pub type PalletExampleMbms = pallet_example_mbm;
+	pub type PalletExampleMbms = pallet_example_mbm::Pallet<Runtime>;
 
 	#[runtime::pallet_index(79)]
-	pub type AssetConversionMigration = pallet_asset_conversion_ops;
+	pub type AssetConversionMigration = pallet_asset_conversion_ops::Pallet<Runtime>;
 }
 
 /// The address format for describing accounts.

substrate/frame/support/procedural/Cargo.toml

@@ -24,7 +24,7 @@ cfg-expr = { workspace = true }
 itertools = { workspace = true }
 proc-macro2 = { workspace = true }
 quote = { workspace = true }
-syn = { features = ["full", "visit-mut"], workspace = true }
+syn = { features = ["full", "parsing", "visit-mut"], workspace = true }
 frame-support-procedural-tools = { workspace = true, default-features = true }
 macro_magic = { features = ["proc_support"], workspace = true }
 proc-macro-warning = { workspace = true }