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staking: Fix Reward usage (#10887)

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* staking: Fix `Reward` usage

* Some small fixes

* Check on_unbalanced was called

* Improve tests

* Add not for Reward; FMT

* 🤦

Co-authored-by: parity-processbot <>
This commit is contained in:
Zeke Mostov
2022-04-21 06:50:17 -07:00
committed by GitHub
parent 806f6cc683
commit 97f5193137
4 changed files with 50 additions and 6 deletions
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substrate/frame/staking/src/pallet/impls.rs
+4
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@@ -174,11 +174,13 @@ impl<T: Config> Pallet<T> {
Self::deposit_event(Event::<T>::PayoutStarted(era, ledger.stash.clone()));
let mut total_imbalance = PositiveImbalanceOf::<T>::zero();
// We can now make total validator payout:
if let Some(imbalance) =
Self::make_payout(&ledger.stash, validator_staking_payout + validator_commission_payout)
{
Self::deposit_event(Event::<T>::Rewarded(ledger.stash, imbalance.peek()));
total_imbalance.subsume(imbalance);
}
// Track the number of payout ops to nominators. Note:
@@ -199,9 +201,11 @@ impl<T: Config> Pallet<T> {
nominator_payout_count += 1;
let e = Event::<T>::Rewarded(nominator.who.clone(), imbalance.peek());
Self::deposit_event(e);
total_imbalance.subsume(imbalance);
}
}
T::Reward::on_unbalanced(total_imbalance);
debug_assert!(nominator_payout_count <= T::MaxNominatorRewardedPerValidator::get());
Ok(Some(T::WeightInfo::payout_stakers_alive_staked(nominator_payout_count)).into())
}