Replace errors with nil?

[kevinrenskers]

How do I turn a Signal<SomeThing, Error> into Signal<SomeThing?, Never>?

[kevinrenskers]

Never mind :)

extension Signal {
  func errorToOptional() -> Signal<Element?, Never> {
    return Signal<Element?, Never> { observer in
      return self.observe { event in
        switch event {
        case .next(let element):
          observer.receive(element)
        case .failed:
          observer.receive(nil)
        case .completed:
          observer.receive(completion: .finished)
        }
      }
    }
  }
}