metatext/Extensions/Publisher+Extensions.swift

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// Copyright © 2020 Metabolist. All rights reserved.
import Foundation
import Combine
extension Publisher {
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func assignErrorsToAlertItem<Root: AnyObject>(
to keyPath: ReferenceWritableKeyPath<Root, AlertItem?>,
on object: Root) -> AnyPublisher<Output, Never> {
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self.catch { [weak object] error -> Empty<Output, Never> in
DispatchQueue.main.async {
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object?[keyPath: keyPath] = AlertItem(error: error)
}
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return Empty()
}
.eraseToAnyPublisher()
}
}