ObserverType

public protocol ObserverType

Supports push-style iteration over an observable sequence.

`

                Element
                `

The type of elements in sequence that observer can observe.

Declaration

Swift

associatedtype Element

`

                on(_:)
                `

Notify observer about sequence event.

Declaration

Swift

func on(_ event: Event<Element>)

Parameters

| event |

Event that occurred.

|

`

                asObserver()
                ` Extension method 

Erases type of observer and returns canonical observer.

Declaration

Swift

func asObserver() -> AnyObserver<Element>

Return Value

type erased observer.

`

                mapObserver(_:)
                ` Extension method 

Transforms observer of type R to type E using custom transform method. Each event sent to result observer is transformed and sent to self.

Declaration

Swift

func mapObserver<Result>(_ transform: @escaping (Result) throws -> Element) -> AnyObserver<Result>

Return Value

observer that transforms events.

`

                onNext(_:)
                ` Extension method 

Convenience method equivalent to on(.next(element: Element))

Declaration

Swift

func onNext(_ element: Element)

Parameters

| element |

Next element to send to observer(s)

|

`

                onCompleted()
                ` Extension method 

Convenience method equivalent to on(.completed)

Declaration

Swift

func onCompleted()

`

                onError(_:)
                ` Extension method 

Convenience method equivalent to on(.error(Swift.Error))

Declaration

Swift

func onError(_ error: Swift.Error)

Parameters

| error |

Swift.Error to send to observer(s)

|