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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2025 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
public struct ByteCount: Hashable, Sendable {
public var count: Int64
public init?(_ count: Int64?) {
guard let count else { return nil }
self.count = count
}
public init(_ count: Int64) {
self.count = count
}
}
extension ByteCount: Codable {
public init(from decoder: any Swift.Decoder) throws {
self.count = try .init(from: decoder)
}
public func encode(to encoder: any Swift.Encoder) throws {
try self.count.encode(to: encoder)
}
}
extension ByteCount: Serializable {
public init(from deserializer: any Deserializer) throws {
self.count = try .init(from: deserializer)
}
public func serialize<T>(to serializer: T) where T : Serializer {
self.count.serialize(to: serializer)
}
}
extension ByteCount: Comparable {
public static func < (lhs: ByteCount, rhs: ByteCount) -> Bool {
lhs.count < rhs.count
}
}
extension ByteCount: AdditiveArithmetic {
public static var zero: ByteCount {
Self(0)
}
public static func + (lhs: ByteCount, rhs: ByteCount) -> ByteCount {
Self(lhs.count + rhs.count)
}
public static func - (lhs: ByteCount, rhs: ByteCount) -> ByteCount {
Self(lhs.count - rhs.count)
}
}
extension ByteCount: CustomStringConvertible {
public var description: String {
"\(count) bytes"
}
}
extension ByteCount {
private static let kb = Int64(1024)
private static let mb = kb * 1024
private static let gb = mb * 1024
private static let tb = gb * 1024
public static func kilobytes(_ count: Int64) -> Self {
Self(kb * count)
}
public static func megabytes(_ count: Int64) -> Self {
Self(mb * count)
}
public static func gigabytes(_ count: Int64) -> Self {
Self(gb * count)
}
public static func terabytes(_ count: Int64) -> Self {
Self(tb * count)
}
}
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