Thread-safe property wrapper

ThreadSafePropertyWrapper.swift

@propertyWrapper
public struct ThreadSafe<Value> {
    private let queue = DispatchQueue(label: "com.private")
    private var value: Value

    public init(wrappedValue: Value) {
        self.value = wrappedValue
    }

    public var wrappedValue: Value {
        get {
            queue.sync { value }
        }
        set {
            queue.sync {
                value = newValue
            }
        }
    }
}