_SequenceMany
ReducerBuilder.swift:121struct _SequenceMany<Element> where Element : Reducerstruct _SequenceMany<Element> where Element : Reducers22ComposableArchitecture14ReducerBuilderO13_SequenceManyV What are these?4IOVRimport ComposableArchitectureThe Composable Architecture (TCA, for short) is a library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind. It can be used in SwiftUI, UIKit, and more, and on any Apple platform (iOS, macOS, tvOS, and watchOS).
@resultBuilder enum ReducerBuilder<State, Action>A result builder for combining reducers into a single reducer by running each, one after the other, and merging their effects.
protocol Reducer<State, Action>A protocol that describes how to evolve the current state of an application to the next state, given an action, and describes what Effects should be executed later by the store, if any.
static func buildArray(_ reducers: [some Reducer<State, Action>]) -> some Reducer<State, Action>
static func buildBlock() -> some Reducer<State, Action>
static func buildBlock<R>(_ reducer: R) -> R where State == R.State, Action == R.Action, R : Reducer static func buildEither<R0, R1>(first reducer: R0) -> _Conditional<R0, R1> where State == R0.State, Action == R0.Action, R0 : Reducer, R1 : Reducer, R0.Action == R1.Action, R0.State == R1.State static func buildEither<R0, R1>(second reducer: R1) -> _Conditional<R0, R1> where State == R0.State, Action == R0.Action, R0 : Reducer, R1 : Reducer, R0.Action == R1.Action, R0.State == R1.State static func buildExpression(_ expression: any Reducer<State, Action>) -> Reduce<State, Action> static func buildExpression<R>(_ expression: R) -> R where State == R.State, Action == R.Action, R : Reducer static func buildFinalResult<R>(_ reducer: R) -> R where State == R.State, Action == R.Action, R : Reducer static func buildLimitedAvailability(_ wrapped: some Reducer<State, Action>) -> Reduce<State, Action> static func buildOptional<R>(_ wrapped: R?) -> R? where State == R.State, Action == R.Action, R : Reducer static func buildPartialBlock<R0, R1>(accumulated: R0, next: R1) -> _Sequence<R0, R1> where State == R0.State, Action == R0.Action, R0 : Reducer, R1 : Reducer, R0.Action == R1.Action, R0.State == R1.State static func buildPartialBlock<R>(first: R) -> R where State == R.State, Action == R.Action, R : Reducer enum _Conditional<First, Second> where First : Reducer, Second : Reducer, First.Action == Second.Action, First.State == Second.Statestruct _Sequence<R0, R1> where R0 : Reducer, R1 : Reducer, R0.Action == R1.Action, R0.State == R1.Statefunc reduce(into state: inout Element.State, action: Element.Action) -> Effect<Element.Action> var body: Body { get }A non-existent body.
@warn_unqualified_access func _printChanges(_ printer: _ReducerPrinter<State, Action>? = .customDump) -> _PrintChangesReducer<Self> Enhances a reducer with debug logging of received actions and state mutations for the given printer.
@warn_unqualified_access func dependency<Value>(_ value: Value) -> _DependencyKeyWritingReducer<Self> where Value : TestDependencyKey, Value == Value.Value Places a value in the reducer’s dependencies.
@warn_unqualified_access func dependency<Value>(_ keyPath: WritableKeyPath<DependencyValues, Value>, _ value: Value) -> _DependencyKeyWritingReducer<Self> Sets the dependency value of the specified key path to the given value.
func forEach<DestinationState, DestinationAction>(_ state: WritableKeyPath<State, StackState<DestinationState>>, action: CaseKeyPath<Action, StackAction<DestinationState, DestinationAction>>) -> some ReducerOf<Self> where DestinationState : CaseReducerState, DestinationAction == DestinationState.StateReducer.Action
A special overload of Reducer/forEach(_:action:destination:fileID:filePath:line:column:)-9svqb for enum reducers.
@warn_unqualified_access func forEach<DestinationState, DestinationAction, Destination>(_ toStackState: WritableKeyPath<State, StackState<DestinationState>>, action toStackAction: AnyCasePath<Action, StackAction<DestinationState, DestinationAction>>, @ReducerBuilder<DestinationState, DestinationAction> destination: () -> Destination, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState == Destination.State, DestinationAction == Destination.Action, Destination : Reducer
@warn_unqualified_access func forEach<DestinationState, DestinationAction, Destination>(_ toStackState: WritableKeyPath<State, StackState<DestinationState>>, action toStackAction: CaseKeyPath<Action, StackAction<DestinationState, DestinationAction>>, @ReducerBuilder<DestinationState, DestinationAction> destination: () -> Destination, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState == Destination.State, DestinationAction == Destination.Action, Destination : Reducer
Embeds a child reducer in a parent domain that works on elements of a navigation stack in parent state.
@warn_unqualified_access func forEach<ElementState, ElementAction, ID, Element>(_ toElementsState: WritableKeyPath<State, IdentifiedArray<ID, ElementState>>, action toElementAction: AnyCasePath<Action, (ID, ElementAction)>, @ReducerBuilder<ElementState, ElementAction> element: () -> Element, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where ElementState == Element.State, ElementAction == Element.Action, ID : Hashable, ID : Sendable, Element : Reducer
@warn_unqualified_access func forEach<ElementState, ElementAction, ID, Element>(_ toElementsState: WritableKeyPath<State, IdentifiedArray<ID, ElementState>>, action toElementAction: CaseKeyPath<Action, IdentifiedAction<ID, ElementAction>>, @ReducerBuilder<ElementState, ElementAction> element: () -> Element, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where ElementState == Element.State, ElementAction == Element.Action, ID : Hashable, ID : Sendable, Element : Reducer
Embeds a child reducer in a parent domain that works on elements of a collection in parent state.
@warn_unqualified_access func ifCaseLet<CaseState, CaseAction, Case>(_ toCaseState: CaseKeyPath<State, CaseState>, action toCaseAction: CaseKeyPath<Action, CaseAction>, @ReducerBuilder<CaseState, CaseAction> then case: () -> Case, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> _IfCaseLetReducer<Self, Case> where CaseState == Case.State, CaseAction == Case.Action, Case : Reducer, Self.Action : CasePathable, Self.State : CasePathable Embeds a child reducer in a parent domain that works on a case of parent enum state.
@warn_unqualified_access func ifCaseLet<CaseState, CaseAction, Case>(_ toCaseState: AnyCasePath<State, CaseState>, action toCaseAction: AnyCasePath<Action, CaseAction>, @ReducerBuilder<CaseState, CaseAction> then case: () -> Case, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where CaseState == Case.State, CaseAction == Case.Action, Case : Reducer
func ifLet<ChildState, ChildAction>(_ state: WritableKeyPath<State, PresentationState<ChildState>>, action: CaseKeyPath<Action, PresentationAction<ChildAction>>) -> some ReducerOf<Self> where ChildState : CaseReducerState, ChildAction == ChildState.StateReducer.Action
A special overload of Reducer/ifLet(_:action:destination:fileID:filePath:line:column:)-4ub6q for enum reducers.
@warn_unqualified_access func ifLet<DestinationState, DestinationAction, Destination>(_ toPresentationState: WritableKeyPath<State, PresentationState<DestinationState>>, action toPresentationAction: AnyCasePath<Action, PresentationAction<DestinationAction>>, @ReducerBuilder<DestinationState, DestinationAction> destination: () -> Destination, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState == Destination.State, DestinationAction == Destination.Action, Destination : Reducer
@warn_unqualified_access func ifLet<DestinationState, DestinationAction, Destination>(_ toPresentationState: WritableKeyPath<State, PresentationState<DestinationState>>, action toPresentationAction: CaseKeyPath<Action, PresentationAction<DestinationAction>>, @ReducerBuilder<DestinationState, DestinationAction> destination: () -> Destination, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState == Destination.State, DestinationAction == Destination.Action, Destination : Reducer
Embeds a child reducer in a parent domain that works on an optional property of parent state.
@warn_unqualified_access func ifLet<WrappedState, WrappedAction>(_ toWrappedState: WritableKeyPath<State, WrappedState?>, action toWrappedAction: AnyCasePath<Action, WrappedAction>, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> _IfLetReducer<Self, EmptyReducer<WrappedState, WrappedAction>> where WrappedState : _EphemeralState @warn_unqualified_access func ifLet<DestinationState, DestinationAction>(_ toPresentationState: WritableKeyPath<State, PresentationState<DestinationState>>, action toPresentationAction: AnyCasePath<Action, PresentationAction<DestinationAction>>, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState : _EphemeralState
@warn_unqualified_access func ifLet<DestinationState, DestinationAction>(_ toPresentationState: WritableKeyPath<State, PresentationState<DestinationState>>, action toPresentationAction: CaseKeyPath<Action, PresentationAction<DestinationAction>>, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where DestinationState : _EphemeralState
A special overload of Reducer/ifLet(_:action:destination:fileID:filePath:line:column:)-4ub6q for alerts and confirmation dialogs that does not require a child reducer.
@warn_unqualified_access func ifLet<WrappedState, WrappedAction>(_ toWrappedState: WritableKeyPath<State, WrappedState?>, action toWrappedAction: CaseKeyPath<Action, WrappedAction>, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where WrappedState : _EphemeralState
A special overload of Reducer/ifLet(_:action:then:fileID:filePath:line:column:)-2r2pn for alerts and confirmation dialogs that does not require a child reducer.
@warn_unqualified_access func ifLet<WrappedState, WrappedAction, Wrapped>(_ toWrappedState: WritableKeyPath<State, WrappedState?>, action toWrappedAction: AnyCasePath<Action, WrappedAction>, @ReducerBuilder<WrappedState, WrappedAction> then wrapped: () -> Wrapped, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where WrappedState == Wrapped.State, WrappedAction == Wrapped.Action, Wrapped : Reducer
@warn_unqualified_access func ifLet<WrappedState, WrappedAction, Wrapped>(_ toWrappedState: WritableKeyPath<State, WrappedState?>, action toWrappedAction: CaseKeyPath<Action, WrappedAction>, @ReducerBuilder<WrappedState, WrappedAction> then wrapped: () -> Wrapped, fileID: StaticString = #fileID, filePath: StaticString = #filePath, line: UInt = #line, column: UInt = #column) -> some Reducer<State, Action> where WrappedState == Wrapped.State, WrappedAction == Wrapped.Action, Wrapped : Reducer
Embeds a child reducer in a parent domain that works on an optional property of parent state.
func onChange<V, R>(of toValue: @escaping (State) -> V, @ReducerBuilder<Self.State, Self.Action> _ reducer: @escaping (_ oldValue: V, _ newValue: V) -> R) -> _OnChangeReducer<Self, V, R> where V : Equatable, R : Reducer, Self.Action == R.Action, Self.State == R.State Adds a reducer to run when this reducer changes the given value in state.
@warn_unqualified_access func signpost(_ prefix: String = "", log: OSLog = OSLog(
subsystem: "co.pointfree.ComposableArchitecture",
category: "Reducer Instrumentation"
)) -> _SignpostReducer<Self> Instruments a reducer with signposts.
@warn_unqualified_access func transformDependency<V>(_ keyPath: WritableKeyPath<DependencyValues, V>, transform: @escaping (_ dependency: inout V) -> Void) -> _DependencyKeyWritingReducer<Self> Transform a reducer’s dependency value at the specified key path with the given function.
func onChange<V, R>(of toValue: @escaping (State) -> V, removeDuplicates isDuplicate: @escaping (V, V) -> Bool, @ReducerBuilder<Self.State, Self.Action> _ reducer: @escaping (_ oldValue: V, _ newValue: V) -> R) -> _OnChangeReducer<Self, V, R> where R : Reducer, Self.Action == R.Action, Self.State == R.State Adds a reducer to run when this reducer changes the given value in state.