You can send your Date
converting it to Data
(8-bytes floating point) and back to Date
as follow:
extension Numeric {
var data: Data {
var source = self
return .init(bytes: &source, count: MemoryLayout<Self>.size)
}
init<D: DataProtocol>(_ data: D) {
var value: Self = .zero
let size = withUnsafeMutableBytes(of: &value, { data.copyBytes(to: $0)} )
assert(size == MemoryLayout.size(ofValue: value))
self = value
}
}
extension UInt64 {
var bitPattern: Double { .init(bitPattern: self) }
}
extension Date {
var data: Data { timeIntervalSinceReferenceDate.bitPattern.littleEndian.data }
init<D: DataProtocol>(data: D) {
self.init(timeIntervalSinceReferenceDate: data.timeIntervalSinceReferenceDate)
}
}
extension DataProtocol {
func value<N: Numeric>() -> N { .init(self) }
var uint64: UInt64 { value() }
var timeIntervalSinceReferenceDate: TimeInterval { uint64.littleEndian.bitPattern }
var date: Date { .init(data: self) }
}
Playground Testing
let date = Date() // "Nov 15, 2019 at 12:13 PM"
let data = date.data // 8 bytes
print(Array(data)) // "[25, 232, 158, 22, 124, 191, 193, 65]\n"
let loadedDate = data.date // "Nov 15, 2019 at 12:13 PM"
print(date == loadedDate) // "true"