Created
April 5, 2019 09:57
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playgroundShouldContinueIndefinitely() | |
class Reactor { | |
lazy var state: Observable<Int> = self.closure().concat(Observable<Int>.never()) | |
private lazy var closure: () -> Observable<Int> = self.closureImplementation() | |
deinit { | |
print("DEINIT SUCCESS!!!") | |
} | |
func closureImplementation() -> () -> Observable<Int> { | |
return { [weak self] in | |
guard let self = self else { return .empty() } | |
print("B", _getRetainCount(self)) // 3 | |
return Observable<Int>.just(10) | |
.flatMap { [weak self] _ -> Observable<Int> in | |
guard let self = self else { return .empty() } | |
print("C", _getRetainCount(self)) // 3 | |
return self.fooMutation() | |
} | |
} | |
} | |
func fooMutation() -> Observable<Int> { | |
print("D", _getRetainCount(self)) | |
return Observable.just(20) | |
} | |
} | |
example("Try yourself") { | |
print("START") | |
defer { print("END") } | |
let disposeBag = DisposeBag() | |
let reactor = Reactor() | |
print("A", _getRetainCount(reactor)) // 2 | |
reactor.state.debug("state").subscribe().disposed(by: disposeBag) | |
} |
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@wplong11