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May 16, 2018 17:36
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FlatMap Article - Type Declarations
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class Project { | |
private let developerSubject = PublishSubject<Developer>() | |
var developerStream: Observable<Developer> { | |
return developerSubject.asObservable() | |
} | |
func addDeveloper(_ developer: Developer) { | |
developerSubject.onNext(developer) | |
} | |
func stop() { | |
developerSubject.onCompleted() | |
} | |
} | |
class Developer { | |
private let commitSubject = PublishSubject<Commit>() | |
let name: String | |
init(_ name: String) { | |
self.name = name | |
} | |
func startCoding() -> Observable<Commit> { | |
return commitSubject.asObservable() | |
} | |
func stopCoding() { | |
commitSubject.onCompleted() | |
} | |
// Helper to externally simulate coding activity. | |
func pushCommit(_ hash: String) { | |
commitSubject.onNext(Commit(author: name, hash: hash)) | |
} | |
} | |
struct Commit { | |
let author: String | |
let hash: String | |
} | |
class CI: ObserverType { | |
func on(_ event: Event<Commit>) { | |
switch event { | |
case .next(let commit): print("CI is building \(commit).") | |
case .completed: print("CI stopped.") | |
case .error(let error): print("CI errored: \(error).") | |
} | |
} | |
} |
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