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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Convenience APIs for Set<AnyHashable>
//===----------------------------------------------------------------------===//
extension Set where Element == AnyHashable {
@inlinable
@discardableResult
public mutating func insert<ConcreteElement: Hashable>(
_ newMember: __owned ConcreteElement
) -> (inserted: Bool, memberAfterInsert: ConcreteElement) {
let (inserted, memberAfterInsert) =
insert(AnyHashable(newMember))
return (
inserted: inserted,
memberAfterInsert: memberAfterInsert.base as! ConcreteElement)
}
@inlinable
@discardableResult
public mutating func update<ConcreteElement: Hashable>(
with newMember: __owned ConcreteElement
) -> ConcreteElement? {
return update(with: AnyHashable(newMember))
.map { $0.base as! ConcreteElement }
}
@inlinable
@discardableResult
public mutating func remove<ConcreteElement: Hashable>(
_ member: ConcreteElement
) -> ConcreteElement? {
return remove(AnyHashable(member))
.map { $0.base as! ConcreteElement }
}
}
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