Fix some Xcode 26.4 warnings (#330)

Author: stephencelis

Sources/SwiftUINavigation/Alert.swift

@@ -231,6 +231,22 @@
       )
     }
 
+    /// Presents an alert from a binding to optional alert state.
+    ///
+    /// See <doc:AlertsDialogs> for more information on how to use this API.
+    ///
+    /// - Parameter state: A binding to optional alert state that determines whether an alert should
+    ///   be presented. When the binding is updated with non-`nil` value, it is unwrapped and used
+    ///   to populate the fields of an alert that the system displays to the user. When the user
+    ///   presses or taps one of the alert's actions, the system sets this value to `nil` and
+    ///   dismisses the alert, and the action is fed to the `action` closure.
+    #if compiler(>=6)
+      @MainActor
+    #endif
+    public func alert<Value>(_ state: Binding<AlertState<Value>?>) -> some View {
+      alert(state) { _ in }
+    }
+
     /// Presents an alert from a binding to optional alert state.
     ///
     /// See <doc:AlertsDialogs> for more information on how to use this API.
@@ -248,7 +264,7 @@
     #endif
     public func alert<Value>(
       _ state: Binding<AlertState<Value>?>,
-      action handler: @escaping (Value?) -> Void = { (_: Never?) in }
+      action handler: @escaping (Value?) -> Void
     ) -> some View {
       alert(item: state) {
         Text($0.title)
@@ -278,7 +294,7 @@
     ///     tapped.
     public func alert<Value: Sendable>(
       _ state: Binding<AlertState<Value>?>,
-      action handler: @escaping @Sendable (Value?) async -> Void = { (_: Never?) async in }
+      action handler: @escaping @Sendable (Value?) async -> Void
     ) -> some View {
       alert(item: state) {
         Text($0.title)

Sources/SwiftUINavigation/ConfirmationDialog.swift

@@ -160,6 +160,21 @@
       )
     }
 
+    /// Presents a confirmation dialog from a binding to optional confirmation dialog state.
+    ///
+    /// See <doc:AlertsDialogs> for more information on how to use this API.
+    ///
+    /// - Parameter state: A binding to optional state that determines whether a confirmation dialog
+    ///   should be presented. When the binding is updated with non-`nil` value, it is unwrapped and
+    ///   used to populate the fields of a dialog that the system displays to the user. When the
+    ///   user presses or taps one of the dialog's actions, the system sets this value to `nil` and
+    ///   dismisses the dialog, and the action is fed to the `action` closure.
+    public func confirmationDialog<Value>(
+      _ state: Binding<ConfirmationDialogState<Value>?>,
+    ) -> some View {
+      confirmationDialog(state) { _ in }
+    }
+
     /// Presents a confirmation dialog from a binding to optional confirmation dialog state.
     ///
     /// See <doc:AlertsDialogs> for more information on how to use this API.
@@ -174,7 +189,7 @@
     ///     tapped.
     public func confirmationDialog<Value>(
       _ state: Binding<ConfirmationDialogState<Value>?>,
-      action handler: @escaping (Value?) -> Void = { (_: Never?) in }
+      action handler: @escaping (Value?) -> Void
     ) -> some View {
       confirmationDialog(
         item: state,
@@ -207,7 +222,7 @@
     ///     tapped.
     public func confirmationDialog<Value: Sendable>(
       _ state: Binding<ConfirmationDialogState<Value>?>,
-      action handler: @escaping @Sendable (Value?) async -> Void = { (_: Never?) async in }
+      action handler: @escaping @Sendable (Value?) async -> Void
     ) -> some View {
       confirmationDialog(
         item: state,

Sources/UIKitNavigation/Navigation/UIAlertController.swift

@@ -7,14 +7,21 @@
   @available(tvOS 13, *)
   @available(watchOS, unavailable)
   extension UIAlertController {
+    /// Creates and returns a view controller for displaying an alert using a data description.
+    ///
+    /// - Parameter state: A data description of the alert.
+    public convenience init<Action>(state: AlertState<Action>) {
+      self.init(state: state) { _ in }
+    }
+
     /// Creates and returns a view controller for displaying an alert using a data description.
     ///
     /// - Parameters:
     ///   - state: A data description of the alert.
     ///   - handler: A closure that is invoked with an action held in `state`.
     public convenience init<Action>(
       state: AlertState<Action>,
-      handler: @escaping (_ action: Action?) -> Void = { (_: Never?) in }
+      handler: @escaping (_ action: Action?) -> Void
     ) {
       self.init(
         title: String(state: state.title),
@@ -29,6 +36,14 @@
       }
     }
 
+    /// Creates and returns a view controller for displaying an action sheet using a data
+    /// description.
+    ///
+    /// - Parameter state: A data description of the alert.
+    public convenience init<Action>(state: ConfirmationDialogState<Action>) {
+      self.init(state: state) { _ in }
+    }
+
     /// Creates and returns a view controller for displaying an action sheet using a data
     /// description.
     ///
@@ -37,7 +52,7 @@
     ///   - handler: A closure that is invoked with an action held in `state`.
     public convenience init<Action>(
       state: ConfirmationDialogState<Action>,
-      handler: @escaping (_ action: Action?) -> Void = { (_: Never?) in }
+      handler: @escaping (_ action: Action?) -> Void
     ) {
       self.init(
         title: {
@@ -92,7 +107,13 @@
   extension UIAlertAction {
     public convenience init<Action>(
       _ button: ButtonState<Action>,
-      action handler: @escaping (_ action: Action?) -> Void = { (_: Never?) in }
+    ) {
+      self.init(button) { _ in }
+    }
+
+    public convenience init<Action>(
+      _ button: ButtonState<Action>,
+      action handler: @escaping (_ action: Action?) -> Void
     ) {
       self.init(
         title: String(state: button.label),