//
|
// BehaviorRelay.swift
|
// RxRelay
|
//
|
// Created by Krunoslav Zaher on 10/7/17.
|
// Copyright © 2017 Krunoslav Zaher. All rights reserved.
|
//
|
|
import RxSwift
|
|
/// BehaviorRelay is a wrapper for `BehaviorSubject`.
|
///
|
/// Unlike `BehaviorSubject` it can't terminate with error or completed.
|
public final class BehaviorRelay<Element>: ObservableType {
|
private let subject: BehaviorSubject<Element>
|
|
/// Accepts `event` and emits it to subscribers
|
public func accept(_ event: Element) {
|
self.subject.onNext(event)
|
}
|
|
/// Current value of behavior subject
|
public var value: Element {
|
// this try! is ok because subject can't error out or be disposed
|
return try! self.subject.value()
|
}
|
|
/// Initializes behavior relay with initial value.
|
public init(value: Element) {
|
self.subject = BehaviorSubject(value: value)
|
}
|
|
/// Subscribes observer
|
public func subscribe<Observer: ObserverType>(_ observer: Observer) -> Disposable where Observer.Element == Element {
|
self.subject.subscribe(observer)
|
}
|
|
/// - returns: Canonical interface for push style sequence
|
public func asObservable() -> Observable<Element> {
|
self.subject.asObservable()
|
}
|
|
/// Convert to an `Infallible`
|
///
|
/// - returns: `Infallible<Element>`
|
public func asInfallible() -> Infallible<Element> {
|
asInfallible(onErrorFallbackTo: .empty())
|
}
|
}
|
