48 lines
1.2 KiB
Swift
48 lines
1.2 KiB
Swift
//
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// AddRef.swift
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// Rx
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//
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// Created by Junior B. on 30/10/15.
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// Copyright © 2015 Krunoslav Zaher. All rights reserved.
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//
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import Foundation
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class AddRefSink<O: ObserverType> : Sink<O>, ObserverType {
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typealias Element = O.E
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override init(observer: O) {
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super.init(observer: observer)
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}
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func on(_ event: Event<Element>) {
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switch event {
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case .next(_):
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forwardOn(event)
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case .completed, .error(_):
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forwardOn(event)
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dispose()
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}
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}
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}
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class AddRef<Element> : Producer<Element> {
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typealias EventHandler = (Event<Element>) throws -> Void
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private let _source: Observable<Element>
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private let _refCount: RefCountDisposable
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init(source: Observable<Element>, refCount: RefCountDisposable) {
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_source = source
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_refCount = refCount
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}
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override func run<O: ObserverType where O.E == Element>(_ observer: O) -> Disposable {
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let releaseDisposable = _refCount.retain()
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let sink = AddRefSink(observer: observer)
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sink.disposable = Disposables.create(releaseDisposable, _source.subscribeSafe(sink))
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return sink
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}
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}
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