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85ddb1373c
* Port SortDescriptor and SortComparator to FoundationEssentials rdar://116408260 * Update availability
29 lines
1.4 KiB
Swift
29 lines
1.4 KiB
Swift
//===----------------------------------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#if !FOUNDATION_FRAMEWORK
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@available(macOS 10.10, iOS 8.0, watchOS 2.0, tvOS 9.0, *)
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extension StringProtocol {
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/// Compares the string using the specified options and
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/// returns the lexical ordering for the range.
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package func compare<T : StringProtocol>(_ aString: T, options mask: String.CompareOptions = [], range: Range<Index>? = nil) -> ComparisonResult {
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// TODO: This method is modified from `public func compare<T : StringProtocol>(_ aString: T, options mask: String.CompareOptions = [], range: Range<Index>? = nil, locale: Locale? = nil) -> ComparisonResult`. Move that method here once `Locale` can be staged in `FoundationEssentials`.
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var substr = Substring(self)
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if let range {
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substr = substr[range]
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}
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return substr._unlocalizedCompare(other: Substring(aString), options: mask)
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}
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}
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#endif // !FOUNDATION_FRAMEWORK
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