frame: Enable GenesisConfig in no_std (#14108)

* frame: Default for GenesisConfig in no_std

`Default` for `GenesisConfig` will be required for no_std in no native
runtime world. It must be possible to instantiate default GenesisConfig
for pallets and runtime.

* ".git/.scripts/commands/fmt/fmt.sh"

* hash69 in no_std reverted

* derive(DefaultNoBound) for GenesisConfig used when possible

* treasury: derive(Default)

* Cargo.lock update

* genesis_config: compiler error improved

When std feature is not enabled for pallet, the GenesisConfig will be
defined, but serde::{Serialize,Deserialize} traits will not be
implemented.

The compiler error indicates the reason of latter errors.

This is temporary and serde traits will be enabled with together with
`serde` support in frame.

---------

Co-authored-by: command-bot <>

Author: michalkucharczyk

frame/alliance/src/lib.rs

@@ -401,19 +401,13 @@ pub mod pallet {
 	}
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub fellows: Vec<T::AccountId>,
 		pub allies: Vec<T::AccountId>,
 		pub phantom: PhantomData<(T, I)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self { fellows: Vec::new(), allies: Vec::new(), phantom: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/assets/src/lib.rs

@@ -369,6 +369,7 @@ pub mod pallet {
 	>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		/// Genesis assets: id, owner, is_sufficient, min_balance
 		pub assets: Vec<(T::AssetId, T::AccountId, bool, T::Balance)>,
@@ -378,17 +379,6 @@ pub mod pallet {
 		pub accounts: Vec<(T::AssetId, T::AccountId, T::Balance)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self {
-				assets: Default::default(),
-				metadata: Default::default(),
-				accounts: Default::default(),
-			}
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/aura/src/lib.rs

@@ -129,17 +129,11 @@ pub mod pallet {
 	pub(super) type CurrentSlot<T: Config> = StorageValue<_, Slot, ValueQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub authorities: Vec<T::AuthorityId>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { authorities: Vec::new() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/authority-discovery/src/lib.rs

@@ -59,7 +59,7 @@ pub mod pallet {
 	pub(super) type NextKeys<T: Config> =
 		StorageValue<_, WeakBoundedVec<AuthorityId, T::MaxAuthorities>, ValueQuery>;
 
-	#[cfg_attr(feature = "std", derive(Default))]
+	#[derive(Default)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig {
 		pub keys: Vec<AuthorityId>,

frame/babe/src/lib.rs

@@ -314,7 +314,7 @@ pub mod pallet {
 	pub(super) type SkippedEpochs<T> =
 		StorageValue<_, BoundedVec<(u64, SessionIndex), ConstU32<100>>, ValueQuery>;
 
-	#[cfg_attr(feature = "std", derive(Default))]
+	#[derive(Default)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig {
 		pub authorities: Vec<(AuthorityId, BabeAuthorityWeight)>,

frame/balances/src/lib.rs

@@ -456,7 +456,6 @@ pub mod pallet {
 		pub balances: Vec<(T::AccountId, T::Balance)>,
 	}
 
-	#[cfg(feature = "std")]
 	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
 		fn default() -> Self {
 			Self { balances: Default::default() }
@@ -483,7 +482,7 @@ pub mod pallet {
 				.iter()
 				.map(|(x, _)| x)
 				.cloned()
-				.collect::<std::collections::BTreeSet<_>>();
+				.collect::<sp_std::collections::btree_set::BTreeSet<_>>();
 
 			assert!(
 				endowed_accounts.len() == self.balances.len(),

frame/beefy/src/lib.rs

@@ -166,7 +166,6 @@ pub mod pallet {
 		pub genesis_block: Option<BlockNumberFor<T>>,
 	}
 
-	#[cfg(feature = "std")]
 	impl<T: Config> Default for GenesisConfig<T> {
 		fn default() -> Self {
 			// BEEFY genesis will be first BEEFY-MANDATORY block,

frame/collective/src/lib.rs

@@ -224,18 +224,12 @@ pub mod pallet {
 	}
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub phantom: PhantomData<I>,
 		pub members: Vec<T::AccountId>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self { phantom: Default::default(), members: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/democracy/src/lib.rs

@@ -439,17 +439,11 @@ pub mod pallet {
 	pub type MetadataOf<T: Config> = StorageMap<_, Blake2_128Concat, MetadataOwner, PreimageHash>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		_phantom: sp_std::marker::PhantomData<T>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			GenesisConfig { _phantom: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/elections-phragmen/src/lib.rs

@@ -711,17 +711,11 @@ pub mod pallet {
 		StorageMap<_, Twox64Concat, T::AccountId, Voter<T::AccountId, BalanceOf<T>>, ValueQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub members: Vec<(T::AccountId, BalanceOf<T>)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { members: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/examples/basic/src/lib.rs

@@ -618,20 +618,13 @@ pub mod pallet {
 
 	// The genesis config type.
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub dummy: T::Balance,
 		pub bar: Vec<(T::AccountId, T::Balance)>,
 		pub foo: T::Balance,
 	}
 
-	// The default value for the genesis config type.
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { dummy: Default::default(), bar: Default::default(), foo: Default::default() }
-		}
-	}
-
 	// The build of genesis for the pallet.
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {

frame/grandpa/src/lib.rs

@@ -333,7 +333,7 @@ pub mod pallet {
 	#[pallet::getter(fn session_for_set)]
 	pub(super) type SetIdSession<T: Config> = StorageMap<_, Twox64Concat, SetId, SessionIndex>;
 
-	#[cfg_attr(feature = "std", derive(Default))]
+	#[derive(Default)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig {
 		pub authorities: AuthorityList,

frame/im-online/src/lib.rs

@@ -442,17 +442,11 @@ pub mod pallet {
 	>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub keys: Vec<T::AuthorityId>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			GenesisConfig { keys: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/indices/src/lib.rs

@@ -263,17 +263,11 @@ pub mod pallet {
 		StorageMap<_, Blake2_128Concat, T::AccountIndex, (T::AccountId, BalanceOf<T>, bool)>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub indices: Vec<(T::AccountIndex, T::AccountId)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { indices: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/membership/src/lib.rs

@@ -105,18 +105,12 @@ pub mod pallet {
 	pub type Prime<T: Config<I>, I: 'static = ()> = StorageValue<_, T::AccountId, OptionQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub members: BoundedVec<T::AccountId, T::MaxMembers>,
 		pub phantom: PhantomData<I>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self { members: Default::default(), phantom: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/node-authorization/src/lib.rs

@@ -109,17 +109,11 @@ pub mod pallet {
 		StorageMap<_, Blake2_128Concat, PeerId, BTreeSet<PeerId>, ValueQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub nodes: Vec<(PeerId, T::AccountId)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { nodes: Vec::new() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/nomination-pools/src/lib.rs

@@ -1659,7 +1659,6 @@ pub mod pallet {
 		pub global_max_commission: Option<Perbill>,
 	}
 
-	#[cfg(feature = "std")]
 	impl<T: Config> Default for GenesisConfig<T> {
 		fn default() -> Self {
 			Self {

frame/scored-pool/src/lib.rs

@@ -249,18 +249,12 @@ pub mod pallet {
 	pub(crate) type MemberCount<T, I = ()> = StorageValue<_, u32, ValueQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub pool: PoolT<T, I>,
 		pub member_count: u32,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self { pool: Default::default(), member_count: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/session/src/lib.rs

@@ -414,17 +414,11 @@ pub mod pallet {
 	}
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub keys: Vec<(T::AccountId, T::ValidatorId, T::Keys)>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			Self { keys: Default::default() }
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

frame/society/src/lib.rs

@@ -643,23 +643,13 @@ pub mod pallet {
 	}
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config<I>, I: 'static = ()> {
 		pub pot: BalanceOf<T, I>,
 		pub members: Vec<T::AccountId>,
 		pub max_members: u32,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config<I>, I: 'static> Default for GenesisConfig<T, I> {
-		fn default() -> Self {
-			Self {
-				pot: Default::default(),
-				members: Default::default(),
-				max_members: Default::default(),
-			}
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config<I>, I: 'static> GenesisBuild<T, I> for GenesisConfig<T, I> {
 		fn build(&self) {

frame/staking/src/pallet/mod.rs

@@ -579,6 +579,7 @@ pub mod pallet {
 	pub(crate) type ChillThreshold<T: Config> = StorageValue<_, Percent, OptionQuery>;
 
 	#[pallet::genesis_config]
+	#[derive(frame_support::DefaultNoBound)]
 	pub struct GenesisConfig<T: Config> {
 		pub validator_count: u32,
 		pub minimum_validator_count: u32,
@@ -594,25 +595,6 @@ pub mod pallet {
 		pub max_nominator_count: Option<u32>,
 	}
 
-	#[cfg(feature = "std")]
-	impl<T: Config> Default for GenesisConfig<T> {
-		fn default() -> Self {
-			GenesisConfig {
-				validator_count: Default::default(),
-				minimum_validator_count: Default::default(),
-				invulnerables: Default::default(),
-				force_era: Default::default(),
-				slash_reward_fraction: Default::default(),
-				canceled_payout: Default::default(),
-				stakers: Default::default(),
-				min_nominator_bond: Default::default(),
-				min_validator_bond: Default::default(),
-				max_validator_count: None,
-				max_nominator_count: None,
-			}
-		}
-	}
-
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {