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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
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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 desired_targets = Self::DataProvider::desired_targets().map_err(Error::DataProvider)?;
let mut stake_map: BTreeMap<T::AccountId, VoteWeight> = BTreeMap::new();
voters.iter().for_each(|(v, s, _)| {
stake_map.insert(v.clone(), *s);
});
let stake_map: BTreeMap<T::AccountId, VoteWeight> = voters
.iter()
.map(|(validator, vote_weight, _)| (validator.clone(), *vote_weight))
.collect();
let stake_of =
|w: &T::AccountId| -> VoteWeight { stake_map.get(w).cloned().unwrap_or_default() };