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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift Collections open source project
//
// Copyright (c) 2022 - 2024 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
//
//===----------------------------------------------------------------------===//
extension TreeSet: Encodable where Element: Encodable {
/// Encodes the elements of this set into the given encoder.
///
/// - Parameter encoder: The encoder to write data to.
@inlinable
public func encode(to encoder: Encoder) throws {
var container = encoder.unkeyedContainer()
try container.encode(contentsOf: self)
}
}
extension TreeSet: Decodable where Element: Decodable {
/// Creates a new set by decoding from the given decoder.
///
/// This initializer throws an error if reading from the decoder fails, or
/// if the decoded contents contain duplicate values.
///
/// - Parameter decoder: The decoder to read data from.
@inlinable
public init(from decoder: Decoder) throws {
self.init()
var container = try decoder.unkeyedContainer()
while !container.isAtEnd {
let element = try container.decode(Element.self)
let inserted = self._insert(element)
guard inserted else {
let context = DecodingError.Context(
codingPath: container.codingPath,
debugDescription: "Decoded elements aren't unique (first duplicate at offset \(self.count))")
throw DecodingError.dataCorrupted(context)
}
}
}
}
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