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[stdlib] Update SubSequence docs #38635

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Jul 28, 2021
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[stdlib] Update SubSequence docs #38635

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9 changes: 4 additions & 5 deletions stdlib/public/core/Collection.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -387,12 +387,11 @@ public protocol Collection: Sequence {
/// Returns an iterator over the elements of the collection.
override __consuming func makeIterator() -> Iterator

/// A sequence that represents a contiguous subrange of the collection's
/// elements.
/// A collection representing a contiguous subrange of this collection's
/// elements. The subsequence shares indices with the original collection.
///
/// This associated type appears as a requirement in the `Sequence`
/// protocol, but it is restated here with stricter constraints. In a
/// collection, the subsequence should also conform to `Collection`.
/// The default subsequence type for collections that don't define their own
/// is `Slice`.
associatedtype SubSequence: Collection = Slice<Self>
where SubSequence.Index == Index,
Element == SubSequence.Element,
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