chriseidhof

// Simplified version of https://gist.github.com/anandabits/d9494d14fef221983ff4f1cafa318d47#file-areequatablyequal-swift

func isEqual(x: Any, y: Any) -> Bool {
    func f<LHS>(_ lhs: LHS) -> Bool {
        let p = Wrapper<LHS>.self as? AnyEquatable.Type
        return p?.isEqual(x, y) ?? false
    }
    return _openExistential(x, do: f)
}

IanKeen

extension Publisher {
    func shareReplay() -> AnyPublisher<Output, Failure> {
        let subject = CurrentValueSubject<Output?, Failure>(nil)

        return map { $0 }
            .multicast(subject: subject)
            .autoconnect()
            .compactMap { $0 }
            .eraseToAnyPublisher()
    }