Fix main actor warnings (pointfreeco#89)

Author: stephencelis

Examples/CaseStudies/01-Alerts.swift

@@ -36,13 +36,14 @@ struct OptionalAlerts: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var isLoading = false
   @Published var fact: Fact?
 
   func numberFactButtonTapped() {
-    Task { @MainActor in
+    Task {
       self.isLoading = true
       defer { self.isLoading = false }
       self.fact = await getNumberFact(self.count)

Examples/CaseStudies/02-ConfirmationDialogs.swift

@@ -34,13 +34,14 @@ struct OptionalConfirmationDialogs: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var isLoading = false
   @Published var fact: Fact?
 
   func numberFactButtonTapped() {
-    Task { @MainActor in
+    Task {
       self.isLoading = true
       defer { self.isLoading = false }
       self.fact = await getNumberFact(self.count)

Examples/CaseStudies/03-Sheets.swift

@@ -67,6 +67,7 @@ private struct FactEditor: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var fact: Fact?
@@ -81,7 +82,7 @@ private class FeatureModel: ObservableObject {
   func numberFactButtonTapped() {
     self.isLoading = true
     self.fact = Fact(description: "\(self.count) is still loading...", number: self.count)
-    self.task = Task { @MainActor in
+    self.task = Task {
       let fact = await getNumberFact(self.count)
       self.isLoading = false
       try Task.checkCancellation()

Examples/CaseStudies/04-Popovers.swift

@@ -63,6 +63,7 @@ private struct FactEditor: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var fact: Fact?
@@ -77,7 +78,7 @@ private class FeatureModel: ObservableObject {
   func numberFactButtonTapped() {
     self.isLoading = true
     self.fact = Fact(description: "\(self.count) is still loading...", number: self.count)
-    self.task = Task { @MainActor in
+    self.task = Task {
       let fact = await getNumberFact(self.count)
       self.isLoading = false
       try Task.checkCancellation()

Examples/CaseStudies/05-FullScreenCovers.swift

@@ -67,6 +67,7 @@ private struct FactEditor: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var fact: Fact?
@@ -77,7 +78,7 @@ private class FeatureModel: ObservableObject {
   func numberFactButtonTapped() {
     self.isLoading = true
     self.fact = Fact(description: "\(self.count) is still loading...", number: self.count)
-    self.task = Task { @MainActor in
+    self.task = Task {
       let fact = await getNumberFact(self.count)
       self.isLoading = false
       try Task.checkCancellation()

Examples/CaseStudies/06-NavigationDestinations.swift

@@ -71,6 +71,7 @@ private struct FactEditor: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var fact: Fact?
@@ -86,7 +87,7 @@ private class FeatureModel: ObservableObject {
     if isActive {
       self.isLoading = true
       self.fact = Fact(description: "\(self.count) is still loading...", number: self.count)
-      self.task = Task { @MainActor in
+      self.task = Task {
         let fact = await getNumberFact(self.count)
         self.isLoading = false
         try Task.checkCancellation()

Examples/CaseStudies/07-NavigationLinks.swift

@@ -67,6 +67,7 @@ private struct FactEditor: View {
   }
 }
 
+@MainActor
 private class FeatureModel: ObservableObject {
   @Published var count = 0
   @Published var fact: Fact?
@@ -82,7 +83,7 @@ private class FeatureModel: ObservableObject {
     if isActive {
       self.isLoading = true
       self.fact = Fact(description: "\(self.count) is still loading...", number: self.count)
-      self.task = Task { @MainActor in
+      self.task = Task {
         let fact = await getNumberFact(self.count)
         self.isLoading = false
         try Task.checkCancellation()