guzhenhuaGitHub

import UIKit

// According to article by John Sundell
// https://www.swiftbysundell.com/articles/caching-in-swift/

final class Cache<Key: Hashable, Value> {
    private let wrapped = NSCache<WrappedKey, Entry>()
    private let dateProvider: () -> Date
    private let entryLifetime: TimeInterval
    private let keyTracker = KeyTracker()