Add a EffectTask<Action> typealias for Effect<Action, Never> and rename Effect to EffectPublisher (#1471)

* Add an `EffectOf<Action>` typealias for `Effect<Action, Never>`

* Fix doc

* Rename `EffectOf` to `EffectTask`

* Rename `Effect` to  `EffectPublisher`

* Soft-deprecate `Effect`

* Link to `EffectTask`

* Use `EffectPublisher` in Combine contexts

* Reword soft-deprecation message

* Remove `renamed:` fix-it for `Effect` deprecation

* Update Sources/ComposableArchitecture/Documentation.docc/Extensions/ReducerProtocol.md

Co-authored-by: Stephen Celis <[email protected]>

* Update Sources/ComposableArchitecture/Documentation.docc/ComposableArchitecture.md

* Update Sources/ComposableArchitecture/Effect.swift

* Fix DocC identifiers

Co-authored-by: Stephen Celis <[email protected]>

Author: tgrapperon

Examples/CaseStudies/SwiftUICaseStudies/01-GettingStarted-AlertsAndConfirmationDialogs.swift

@@ -37,7 +37,7 @@ struct AlertAndConfirmationDialog: ReducerProtocol {
     case incrementButtonTapped
   }
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .alertButtonTapped:
       state.alert = AlertState(

Examples/CaseStudies/SwiftUICaseStudies/01-GettingStarted-Animations.swift

@@ -40,7 +40,7 @@ struct Animations: ReducerProtocol {
 
   @Dependency(\.mainQueue) var mainQueue
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     enum CancelID {}
 
     switch action {

Examples/CaseStudies/SwiftUICaseStudies/01-GettingStarted-Bindings-Basics.swift

@@ -35,7 +35,7 @@ struct BindingBasics: ReducerProtocol {
     case toggleChanged(isOn: Bool)
   }
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case let .sliderValueChanged(value):
       state.sliderValue = value

Examples/CaseStudies/SwiftUICaseStudies/01-GettingStarted-Counter.swift

@@ -21,7 +21,7 @@ struct Counter: ReducerProtocol {
     case incrementButtonTapped
   }
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .decrementButtonTapped:
       state.count -= 1

Examples/CaseStudies/SwiftUICaseStudies/01-GettingStarted-SharedState.swift

@@ -88,7 +88,7 @@ struct SharedState: ReducerProtocol {
       case isPrimeButtonTapped
     }
 
-    func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+    func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
       switch action {
       case .alertDismissed:
         state.alert = nil
@@ -140,7 +140,7 @@ struct SharedState: ReducerProtocol {
       case resetCounterButtonTapped
     }
 
-    func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+    func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
       switch action {
       case .resetCounterButtonTapped:
         state.resetCount()

Examples/CaseStudies/SwiftUICaseStudies/02-Effects-Basics.swift

@@ -39,7 +39,7 @@ struct EffectsBasics: ReducerProtocol {
   @Dependency(\.mainQueue) var mainQueue
   private enum DelayID {}
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .decrementButtonTapped:
       state.count -= 1

Examples/CaseStudies/SwiftUICaseStudies/02-Effects-Cancellation.swift

@@ -31,7 +31,7 @@ struct EffectsCancellation: ReducerProtocol {
   @Dependency(\.factClient) var factClient
   private enum NumberFactRequestID {}
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .cancelButtonTapped:
       state.isFactRequestInFlight = false

Examples/CaseStudies/SwiftUICaseStudies/02-Effects-LongLiving.swift

@@ -29,7 +29,7 @@ struct LongLivingEffects: ReducerProtocol {
 
   @Dependency(\.screenshots) var screenshots
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .task:
       // When the view appears, start the effect that emits when screenshots are taken.

Examples/CaseStudies/SwiftUICaseStudies/02-Effects-Refreshable.swift

@@ -31,7 +31,7 @@ struct Refreshable: ReducerProtocol {
   @Dependency(\.mainQueue) var mainQueue
   private enum FactRequestID {}
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .cancelButtonTapped:
       return .cancel(id: FactRequestID.self)

Examples/CaseStudies/SwiftUICaseStudies/02-Effects-Timers.swift

@@ -26,7 +26,7 @@ struct Timers: ReducerProtocol {
   @Dependency(\.mainQueue) var mainQueue
   private enum TimerID {}
 
-  func reduce(into state: inout State, action: Action) -> Effect<Action, Never> {
+  func reduce(into state: inout State, action: Action) -> EffectTask<Action> {
     switch action {
     case .onDisappear:
       return .cancel(id: TimerID.self)