Conformed Failable<BidirectionalCollection, T> type to BidirectionalCollection protocol
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@ -27,3 +27,10 @@ extension Failable: Collection where T: Collection {
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}
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}
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extension Failable: BidirectionalCollection where T: BidirectionalCollection {
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/// See [`BidirectionalCollection.index(before:)`](https://developer.apple.com/documentation/swift/bidirectionalcollection/1783013-index).
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public func index(before i: T.Index) -> T.Index {
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return self.value.index(before: i)
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}
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}
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