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Simplify some Option / Result / ? operator patterns (#8653)

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* Simplify some Option / Result / ? operator patterns

When those match a combinator exactly.

Tool-aided by [comby-rust](https://github.com/huitseeker/comby-rust).

* adjust after review

* adjust post-review
This commit is contained in:
François Garillot
2021-04-23 09:36:10 -04:00
committed by GitHub
parent 541692c4a8
commit 052be8bbef
37 changed files with 77 additions and 188 deletions
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substrate/frame/staking/src/lib.rs
+2 -5
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@@ -2736,11 +2736,8 @@ impl<T: Config> Convert<T::AccountId, Option<Exposure<T::AccountId, BalanceOf<T>
for ExposureOf<T>
{
fn convert(validator: T::AccountId) -> Option<Exposure<T::AccountId, BalanceOf<T>>> {
if let Some(active_era) = <Module<T>>::active_era() {
Some(<Module<T>>::eras_stakers(active_era.index, &validator))
} else {
None
}
<Module<T>>::active_era()
.map(|active_era| <Module<T>>::eras_stakers(active_era.index, &validator))
}
}