構造体

Result.Publisher

このインスタンスの結果を各購読者に厳密に 1 回だけ公開するか、結果が失敗を示している場合は直ちに失敗する Combine 発行者の型。

struct Publisher

Failure が Error に準拠している場合に使用できます。

概観

結果が Swift/Result/success の場合、発行者は少なくとも 1 つの値の要求を受信するまで待機し、その後、すべての購読者に出力を送信して正常に終了します。結果が /Swift/Result/failure の場合、発行者はサブスクリプション時に直ちに失敗を送信します。この後者の動作は、常に単一の値を発行する Just とは対照的です。

トピックス

結果発行者の作成

init(Result<Result<Success, Failure>.Publisher.Output, Failure>)

指定された結果を配信する発行者を作成します。

init(Failure)

与えられた失敗によりサブスクリプションが直ちに終了する発行者を作成します。

init(Result<Success, Failure>.Publisher.Output)

指定された出力をすべての購読者に送信し、正常に終了する発行者を作成します。

発行者プロパティの検査

let result: Result<Result<Success, Failure>.Publisher.Output, Failure>

各購読者に配信すべき結果。

インスタンスメソッド

func allSatisfy((Result<Success, Failure>.Publisher.Output) -> Bool) -> Result<Bool, Failure>.Publisher

func collect() -> Result<[Result<Success, Failure>.Publisher.Output], Failure>.Publisher

func contains(Result<Success, Failure>.Publisher.Output) -> Result<Bool, Failure>.Publisher

func contains(where: (Result<Success, Failure>.Publisher.Output) -> Bool) -> Result<Bool, Failure>.Publisher

func count() -> Result<Int, Failure>.Publisher

func first() -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func ignoreOutput() -> Empty<Result<Success, Failure>.Publisher.Output, Failure>

func last() -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func map<T>((Result<Success, Failure>.Publisher.Output) -> T) -> Result<T, Failure>.Publisher

func mapError<E>((Failure) -> E) -> Result<Result<Success, Failure>.Publisher.Output, E>.Publisher

func max() -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func max(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func min() -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func min(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func reduce<T>(T, (T, Result<Success, Failure>.Publisher.Output) -> T) -> Result<T, Failure>.Publisher

func removeDuplicates() -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func removeDuplicates(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func replaceEmpty(with: Result<Success, Failure>.Publisher.Output) -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func replaceError(with: Result<Success, Failure>.Publisher.Output) -> Result<Result<Success, Failure>.Publisher.Output, Never>.Publisher

func retry(Int) -> Result<Result<Success, Failure>.Publisher.Output, Failure>.Publisher

func scan<T>(T, (T, Result<Success, Failure>.Publisher.Output) -> T) -> Result<T, Failure>.Publisher

func setFailureType<E>(to: E.Type) -> Result<Result<Success, Failure>.Publisher.Output, E>.Publisher

func tryAllSatisfy((Result<Success, Failure>.Publisher.Output) throws -> Bool) -> Result<Bool, any Error>.Publisher

func tryContains(where: (Result<Success, Failure>.Publisher.Output) throws -> Bool) -> Result<Bool, any Error>.Publisher

func tryMap<T>((Result<Success, Failure>.Publisher.Output) throws -> T) -> Result<T, any Error>.Publisher

func tryMax(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) throws -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, any Error>.Publisher

func tryMin(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) throws -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, any Error>.Publisher

func tryReduce<T>(T, (T, Result<Success, Failure>.Publisher.Output) throws -> T) -> Result<T, any Error>.Publisher

func tryRemoveDuplicates(by: (Result<Success, Failure>.Publisher.Output, Result<Success, Failure>.Publisher.Output) throws -> Bool) -> Result<Result<Success, Failure>.Publisher.Output, any Error>.Publisher

func tryScan<T>(T, (T, Result<Success, Failure>.Publisher.Output) throws -> T) -> Result<T, any Error>.Publisher

関連

以下に準拠

Copyable

Success が Equatable に準拠し、Failure が Equatable に準拠し、Failure が Error に準拠している場合に準拠します。

Equatable

Success が Equatable に準拠し、Failure が Equatable に準拠し、Failure が Error に準拠している場合に準拠します。

Publisher

以下も見よ

結果の公開

var publisher: Result<Success, Failure>.Publisher

このインスタンスの結果を各購読者に厳密に 1 回だけ公開するか、結果が失敗を示している場合は直ちに失敗する Combine 発行者。