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jasdev/prefix_while_inclusive_final.swift Secret

Last active January 18, 2021 03:43
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Tidied form of Publisher.prefixInclusive(while:).
Raw
prefix_while_inclusive_final.swift
extension Publisher {
func prefixInclusive(while predicate: @escaping (Output) -> Bool) -> AnyPublisher<Output, Failure> {
flatMap { value in
Just(PrefixInclusiveEvent.predicatePassingValueOrIncluded(value))
.append(!predicate(value) ? [.end] : [])
.setFailureType(to: Failure.self)
}
.prefix(while: \.isPredicatePassingValueOrIncluded)
.compactMap(\.output)
.eraseToAnyPublisher()
}
}
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