Clean up sample code (#1156)

We employ a few tricks that might be confusing folks that are unfamiliar
with them, so this dials some things down in the sample code and docs.
We could maybe take it further, but this is a start.

Author: mluisbrown

Examples/CaseStudies/SwiftUICaseStudies/00-RootView.swift

@@ -303,7 +303,7 @@ struct RootView: View {
 struct RootView_Previews: PreviewProvider {
   static var previews: some View {
     RootView(
-      store: .init(
+      store: Store(
         initialState: RootState(),
         reducer: rootReducer,
         environment: .live

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

@@ -43,11 +43,11 @@ let alertAndConfirmationDialogReducer = Reducer<
 
   switch action {
   case .alertButtonTapped:
-    state.alert = .init(
-      title: .init("Alert!"),
-      message: .init("This is an alert"),
-      primaryButton: .cancel(.init("Cancel")),
-      secondaryButton: .default(.init("Increment"), action: .send(.incrementButtonTapped))
+    state.alert = AlertState(
+      title: TextState("Alert!"),
+      message: TextState("This is an alert"),
+      primaryButton: .cancel(TextState("Cancel")),
+      secondaryButton: .default(TextState("Increment"), action: .send(.incrementButtonTapped))
     )
     return .none
 
@@ -56,13 +56,13 @@ let alertAndConfirmationDialogReducer = Reducer<
     return .none
 
   case .confirmationDialogButtonTapped:
-    state.confirmationDialog = .init(
-      title: .init("Confirmation dialog"),
-      message: .init("This is a confirmation dialog."),
+    state.confirmationDialog = ConfirmationDialogState(
+      title: TextState("Confirmation dialog"),
+      message: TextState("This is a confirmation dialog."),
       buttons: [
-        .cancel(.init("Cancel")),
-        .default(.init("Increment"), action: .send(.incrementButtonTapped)),
-        .default(.init("Decrement"), action: .send(.decrementButtonTapped)),
+        .cancel(TextState("Cancel")),
+        .default(TextState("Increment"), action: .send(.incrementButtonTapped)),
+        .default(TextState("Decrement"), action: .send(.decrementButtonTapped)),
       ]
     )
     return .none
@@ -72,12 +72,12 @@ let alertAndConfirmationDialogReducer = Reducer<
     return .none
 
   case .decrementButtonTapped:
-    state.alert = .init(title: .init("Decremented!"))
+    state.alert = AlertState(title: TextState("Decremented!"))
     state.count -= 1
     return .none
 
   case .incrementButtonTapped:
-    state.alert = .init(title: .init("Incremented!"))
+    state.alert = AlertState(title: TextState("Incremented!"))
     state.count += 1
     return .none
   }
@@ -113,10 +113,10 @@ struct AlertAndConfirmationDialog_Previews: PreviewProvider {
   static var previews: some View {
     NavigationView {
       AlertAndConfirmationDialogView(
-        store: .init(
-          initialState: .init(),
+        store: Store(
+          initialState: AlertAndConfirmationDialogState(),
           reducer: alertAndConfirmationDialogReducer,
-          environment: .init()
+          environment: AlertAndConfirmationDialogEnvironment()
         )
       )
     }

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

@@ -78,18 +78,18 @@ let animationsReducer = Reducer<AnimationsState, AnimationsAction, AnimationsEnv
     )
 
   case .resetButtonTapped:
-    state.alert = .init(
-      title: .init("Reset state?"),
+    state.alert = AlertState(
+      title: TextState("Reset state?"),
       primaryButton: .destructive(
-        .init("Reset"),
+        TextState("Reset"),
         action: .send(.resetConfirmationButtonTapped, animation: .default)
       ),
-      secondaryButton: .cancel(.init("Cancel"))
+      secondaryButton: .cancel(TextState("Cancel"))
     )
     return .none
 
   case .resetConfirmationButtonTapped:
-    state = .init()
+    state = AnimationsState()
     return .none
 
   case let .setColor(color):
@@ -159,7 +159,7 @@ struct AnimationsView_Previews: PreviewProvider {
       NavigationView {
         AnimationsView(
           store: Store(
-            initialState: .init(),
+            initialState: AnimationsState(),
             reducer: animationsReducer,
             environment: AnimationsEnvironment(
               mainQueue: QueueScheduler.main
@@ -171,7 +171,7 @@ struct AnimationsView_Previews: PreviewProvider {
       NavigationView {
         AnimationsView(
           store: Store(
-            initialState: .init(),
+            initialState: AnimationsState(),
             reducer: animationsReducer,
             environment: AnimationsEnvironment(
               mainQueue: QueueScheduler.main

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

@@ -42,7 +42,7 @@
       return .none
 
     case .resetButtonTapped:
-      state = .init()
+      state = BindingFormState()
       return .none
     }
   }

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

@@ -90,9 +90,9 @@
       NavigationView {
         FocusDemoView(
           store: Store(
-            initialState: .init(),
+            initialState: FocusDemoState(),
             reducer: focusDemoReducer,
-            environment: .init()
+            environment: FocusDemoEnvironment()
           )
         )
       }

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

@@ -105,10 +105,12 @@ let sharedStateCounterReducer = Reducer<
     return .none
 
   case .isPrimeButtonTapped:
-    state.alert = .init(
-      title: isPrime(state.count)
-        ? .init("👍 The number \(state.count) is prime!")
-        : .init("👎 The number \(state.count) is not prime :(")
+    state.alert = AlertState(
+      title: TextState(
+        isPrime(state.count)
+        ? "👍 The number \(state.count) is prime!"
+        : "👎 The number \(state.count) is not prime :("
+      )
     )
     return .none
   }

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

@@ -114,7 +114,9 @@ struct EffectsBasicsView: View {
             ProgressView()
           }
 
-          viewStore.numberFact.map(Text.init)
+          if let numberFact = viewStore.numberFact {
+            Text(numberFact)
+          }
         }
       }
     }

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

@@ -108,10 +108,10 @@ let refreshableReducer = Reducer<
   struct Refreshable_Previews: PreviewProvider {
     static var previews: some View {
       RefreshableView(
-        store: .init(
-          initialState: .init(),
+        store: Store(
+          initialState: RefreshableState(),
           reducer: refreshableReducer,
-          environment: .init(
+          environment: RefreshableEnvironment(
             fact: .live,
             mainQueue: QueueScheduler.main
           )

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

@@ -50,7 +50,7 @@ let multipleDependenciesReducer = Reducer<
       .delay(1, on: environment.mainQueue)
 
   case .alertDelayReceived:
-    state.alert = .init(title: .init("Here's an alert after a delay!"))
+    state.alert = AlertState(title: TextState("Here's an alert after a delay!"))
     return .none
 
   case .alertDismissed:
@@ -97,12 +97,16 @@ struct MultipleDependenciesView: View {
         ) {
           HStack {
             Button("Date") { viewStore.send(.dateButtonTapped) }
-            viewStore.dateString.map(Text.init)
+            if let dateString = viewStore.dateString {
+              Text(dateString)
+            }
           }
 
           HStack {
             Button("UUID") { viewStore.send(.uuidButtonTapped) }
-            viewStore.uuidString.map(Text.init)
+            if let uuidString = viewStore.uuidString {
+              Text(uuidString)
+            }
           }
 
           Button("Delayed Alert") { viewStore.send(.alertButtonTapped) }
@@ -118,7 +122,9 @@ struct MultipleDependenciesView: View {
         ) {
           HStack {
             Button("Fetch Number") { viewStore.send(.fetchNumberButtonTapped) }
-            viewStore.fetchedNumberString.map(Text.init)
+            if let fetchedNumberString = viewStore.fetchedNumberString {
+              Text(fetchedNumberString)
+            }
 
             Spacer()
 
@@ -139,7 +145,7 @@ struct MultipleDependenciesView_Previews: PreviewProvider {
     NavigationView {
       MultipleDependenciesView(
         store: Store(
-          initialState: .init(),
+          initialState: MultipleDependenciesState(),
           reducer: multipleDependenciesReducer,
           environment: .live(
             environment: MultipleDependenciesEnvironment(

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

@@ -107,7 +107,7 @@ let webSocketReducer = Reducer<WebSocketState, WebSocketAction, WebSocketEnviron
 
   case let .sendResponse(error):
     if error != nil {
-      state.alert = .init(title: .init("Could not send socket message. Try again."))
+      state.alert = AlertState(title: TextState("Could not send socket message. Try again."))
     }
     return .none
 
@@ -119,7 +119,9 @@ let webSocketReducer = Reducer<WebSocketState, WebSocketAction, WebSocketEnviron
     let .webSocket(.didCompleteWithError(error)):
     state.connectivityState = .disconnected
     if error != nil {
-      state.alert = .init(title: .init("Disconnected from socket for some reason. Try again."))
+      state.alert = AlertState(
+        title: TextState("Disconnected from socket for some reason. Try again.")
+      )
     }
     return .cancel(id: WebSocketId())
 
@@ -265,7 +267,7 @@ extension WebSocketClient {
           case let .success(.some(message)):
             callback(.success(message))
           case .success(.none):
-            callback(.failure(NSError.init(domain: "co.pointfree", code: 1)))
+            callback(.failure(NSError(domain: "co.pointfree", code: 1)))
           case let .failure(error):
             callback(.failure(error as NSError))
           }
@@ -347,7 +349,7 @@ struct WebSocketView_Previews: PreviewProvider {
     NavigationView {
       WebSocketView(
         store: Store(
-          initialState: .init(receivedMessages: ["Echo"]),
+          initialState: WebSocketState(receivedMessages: ["Echo"]),
           reducer: webSocketReducer,
           environment: WebSocketEnvironment(
             mainQueue: QueueScheduler.main,