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Small syntax changes for staking and elections code (#9688)

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* Simplify stake map creation in `OnChainSequentialPhragmen::elect`

* Use or_else

* More or_else

* trivial;

* revert
This commit is contained in:
Zeke Mostov
2021-09-04 08:56:34 +02:00
committed by GitHub
parent 69a453ebd5
commit 8c3ad4300a
2 changed files with 12 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/election-provider-support/src/onchain.rs
+4 -5
View File
@@ -73,11 +73,10 @@ impl<T: Config> ElectionProvider<T::AccountId, T::BlockNumber> for OnChainSequen
let targets = Self::DataProvider::targets(None).map_err(Error::DataProvider)?; let targets = Self::DataProvider::targets(None).map_err(Error::DataProvider)?;
let desired_targets = Self::DataProvider::desired_targets().map_err(Error::DataProvider)?; let desired_targets = Self::DataProvider::desired_targets().map_err(Error::DataProvider)?;
let mut stake_map: BTreeMap<T::AccountId, VoteWeight> = BTreeMap::new(); let stake_map: BTreeMap<T::AccountId, VoteWeight> = voters
.iter()
voters.iter().for_each(|(v, s, _)| { .map(|(validator, vote_weight, _)| (validator.clone(), *vote_weight))
stake_map.insert(v.clone(), *s); .collect();
});
let stake_of = let stake_of =
|w: &T::AccountId| -> VoteWeight { stake_map.get(w).cloned().unwrap_or_default() }; |w: &T::AccountId| -> VoteWeight { stake_map.get(w).cloned().unwrap_or_default() };
substrate/frame/staking/src/pallet/impls.rs
+8 -8
View File
@@ -78,10 +78,10 @@ impl<T: Config> Pallet<T> {
era: EraIndex, era: EraIndex,
) -> DispatchResultWithPostInfo { ) -> DispatchResultWithPostInfo {
// Validate input data // Validate input data
let current_era = CurrentEra::<T>::get().ok_or( let current_era = CurrentEra::<T>::get().ok_or_else(|| {
Error::<T>::InvalidEraToReward Error::<T>::InvalidEraToReward
.with_weight(T::WeightInfo::payout_stakers_alive_staked(0)), .with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
)?; })?;
let history_depth = Self::history_depth(); let history_depth = Self::history_depth();
ensure!( ensure!(
era <= current_era && era >= current_era.saturating_sub(history_depth), era <= current_era && era >= current_era.saturating_sub(history_depth),
@@ -96,10 +96,10 @@ impl<T: Config> Pallet<T> {
.with_weight(T::WeightInfo::payout_stakers_alive_staked(0)) .with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
})?; })?;
let controller = Self::bonded(&validator_stash).ok_or( let controller = Self::bonded(&validator_stash).ok_or_else(|| {
Error::<T>::NotStash.with_weight(T::WeightInfo::payout_stakers_alive_staked(0)), Error::<T>::NotStash.with_weight(T::WeightInfo::payout_stakers_alive_staked(0))
)?; })?;
let mut ledger = <Ledger<T>>::get(&controller).ok_or_else(|| Error::<T>::NotController)?; let mut ledger = <Ledger<T>>::get(&controller).ok_or(Error::<T>::NotController)?;
ledger ledger
.claimed_rewards .claimed_rewards
@@ -891,7 +891,7 @@ impl<T: Config> frame_election_provider_support::ElectionDataProvider<T::Account
targets.into_iter().for_each(|v| { targets.into_iter().for_each(|v| {
let stake: BalanceOf<T> = target_stake let stake: BalanceOf<T> = target_stake
.and_then(|w| <BalanceOf<T>>::try_from(w).ok()) .and_then(|w| <BalanceOf<T>>::try_from(w).ok())
.unwrap_or(MinNominatorBond::<T>::get() * 100u32.into()); .unwrap_or_else(|| MinNominatorBond::<T>::get() * 100u32.into());
<Bonded<T>>::insert(v.clone(), v.clone()); <Bonded<T>>::insert(v.clone(), v.clone());
<Ledger<T>>::insert( <Ledger<T>>::insert(
v.clone(), v.clone(),