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ObserverType.swift
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ObserverType.swift
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//
// ObserverType.swift
// RxSwift
//
// Created by Krunoslav Zaher on 2/8/15.
// Copyright © 2015 Krunoslav Zaher. All rights reserved.
//
/// Supports push-style iteration over an observable sequence.
public protocol ObserverType {
/// The type of elements in sequence that observer can observe.
associatedtype Element
@available(*, deprecated, message: "Use `Element` instead.")
typealias E = Element
/// Notify observer about sequence event.
///
/// - parameter event: Event that occurred.
func on(_ event: Event<Element>)
}
/// Convenience API extensions to provide alternate next, error, completed events
extension ObserverType {
/// Convenience method equivalent to `on(.next(element: Element))`
///
/// - parameter element: Next element to send to observer(s)
public func onNext(_ element: Element) {
self.on(.next(element))
}
/// Convenience method equivalent to `on(.completed)`
public func onCompleted() {
self.on(.completed)
}
/// Convenience method equivalent to `on(.error(Swift.Error))`
/// - parameter error: Swift.Error to send to observer(s)
public func onError(_ error: Swift.Error) {
self.on(.error(error))
}
}