No-std default genesis config

Author: boundless-forest

pallet/ecdsa-authority/src/lib.rs

@@ -171,6 +171,7 @@ pub mod pallet {
 	pub type MessageRootToSign<T: Config> =
 		StorageValue<_, MessageRootSigned<T::MaxAuthorities>, OptionQuery>;
 
+	#[derive(frame_support::DefaultNoBound)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig<T>
 	where
@@ -179,15 +180,7 @@ pub mod pallet {
 		/// The genesis authorities.
 		pub authorities: Vec<T::AccountId>,
 	}
-	#[cfg(feature = "std")]
-	impl<T> Default for GenesisConfig<T>
-	where
-		T: Config,
-	{
-		fn default() -> Self {
-			GenesisConfig { authorities: Vec::new() }
-		}
-	}
+
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {

pallet/message-gadget/src/lib.rs

@@ -45,7 +45,7 @@ pub mod pallet {
 	#[pallet::getter(fn commitment_contract)]
 	pub type CommitmentContract<T> = StorageValue<_, H160, ValueQuery>;
 
-	#[cfg_attr(feature = "std", derive(Default))]
+	#[derive(Default)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig {
 		pub commitment_contract: H160,

pallet/staking/src/lib.rs

@@ -233,6 +233,7 @@ pub mod pallet {
 	#[pallet::getter(fn elapsed_time)]
 	pub type ElapsedTime<T: Config> = StorageValue<_, Moment, ValueQuery>;
 
+	#[derive(frame_support::DefaultNoBound)]
 	#[pallet::genesis_config]
 	pub struct GenesisConfig<T: Config> {
 		/// Current timestamp.
@@ -244,15 +245,7 @@ pub mod pallet {
 		/// Genesis collator preferences.
 		pub collators: Vec<(T::AccountId, Balance)>,
 	}
-	#[cfg(feature = "std")]
-	impl<T> Default for GenesisConfig<T>
-	where
-		T: Config,
-	{
-		fn default() -> Self {
-			GenesisConfig { now: 0, elapsed_time: 0, collator_count: 0, collators: Vec::new() }
-		}
-	}
+
 	#[pallet::genesis_build]
 	impl<T: Config> GenesisBuild<T> for GenesisConfig<T> {
 		fn build(&self) {