Support for strict concurrency

Examples/App.xcodeproj/project.pbxproj

@@ -317,10 +317,6 @@
 				MACOSX_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
-				OTHER_SWIFT_FLAGS = (
-					"-Xfrontend",
-					"-enable-actor-data-race-checks",
-				);
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_COMPILATION_MODE = wholemodule;
 				SWIFT_OPTIMIZATION_LEVEL = "-O";
@@ -438,10 +434,6 @@
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				ONLY_ACTIVE_ARCH = YES;
-				OTHER_SWIFT_FLAGS = (
-					"-Xfrontend",
-					"-enable-actor-data-race-checks",
-				);
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = DEBUG;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";

Examples/App/CrossPlatform.swift

@@ -1,4 +1,11 @@
 import CrossPlatformApp
+import SwiftUI
 
 @main
-extension CrossPlatformApp {}
+struct CrossPlatformApp: App {
+    var body: some Scene {
+        WindowGroup {
+            CrossPlatformRoot()
+        }
+    }
+}

Examples/App/iOS.swift

@@ -1,4 +1,11 @@
+import SwiftUI
 import iOSApp
 
 @main
-extension iOSApp {}
+struct iOSApp: App {
+    var body: some Scene {
+        WindowGroup {
+            iOSRoot()
+        }
+    }
+}

Examples/Packages/CrossPlatform/Package.swift

@@ -1,8 +1,27 @@
-// swift-tools-version:5.8
+// swift-tools-version:5.9
 
 import PackageDescription
 
-let atoms = Target.Dependency.product(name: "Atoms", package: "swiftui-atom-properties")
+let swiftSettings: [SwiftSetting] = [
+    .unsafeFlags(["-Xfrontend", "-strict-concurrency=complete"]),
+    .unsafeFlags(["-Xfrontend", "-enable-actor-data-race-checks"]),
+]
+
+func target(name: String, dependencies: [Target.Dependency] = []) -> Target {
+    .target(
+        name: name,
+        dependencies: [.product(name: "Atoms", package: "swiftui-atom-properties")] + dependencies,
+        swiftSettings: swiftSettings
+    )
+}
+
+func testTarget(name: String, dependencies: [Target.Dependency]) -> Target {
+    .testTarget(
+        name: name,
+        dependencies: dependencies,
+        swiftSettings: swiftSettings
+    )
+}
 
 let package = Package(
     name: "CrossPlatformExamples",
@@ -19,16 +38,16 @@ let package = Package(
         .package(path: "../../..")
     ],
     targets: [
-        .target(
+        target(
             name: "CrossPlatformApp",
             dependencies: [
                 "ExampleCounter",
                 "ExampleTodo",
             ]
         ),
-        .target(name: "ExampleCounter", dependencies: [atoms]),
-        .testTarget(name: "ExampleCounterTests", dependencies: ["ExampleCounter"]),
-        .target(name: "ExampleTodo", dependencies: [atoms]),
-        .testTarget(name: "ExampleTodoTests", dependencies: ["ExampleTodo"]),
+        target(name: "ExampleCounter"),
+        testTarget(name: "ExampleCounterTests", dependencies: ["ExampleCounter"]),
+        target(name: "ExampleTodo"),
+        testTarget(name: "ExampleTodoTests", dependencies: ["ExampleTodo"]),
     ]
 )

Examples/Packages/CrossPlatform/Sources/CrossPlatformApp/CrossPlatformRoot.swift

@@ -0,0 +1,30 @@
+import Atoms
+import ExampleCounter
+import ExampleTodo
+import SwiftUI
+
+// swift-format-ignore: AllPublicDeclarationsHaveDocumentation
+public struct CrossPlatformRoot: View {
+    public init() {}
+
+    public var body: some View {
+        AtomRoot {
+            NavigationStack {
+                List {
+                    NavigationLink("🔢 Counter") {
+                        ExampleCounter()
+                    }
+
+                    NavigationLink("📋 Todo") {
+                        ExampleTodo()
+                    }
+                }
+                .navigationTitle("Examples")
+
+                #if os(iOS)
+                    .listStyle(.insetGrouped)
+                #endif
+            }
+        }
+    }
+}

Examples/Packages/CrossPlatform/Sources/ExampleTodo/Views.swift

@@ -66,8 +66,10 @@ struct TodoCreator: View {
                     .textFieldStyle(.roundedBorder)
                 #endif
 
-            Button("Add", action: addTodo)
-                .disabled(text.isEmpty)
+            Button("Add") {
+                addTodo()
+            }
+            .disabled(text.isEmpty)
         }
         .padding(.vertical)
     }

Examples/Packages/iOS/Package.swift

@@ -1,8 +1,27 @@
-// swift-tools-version:5.8
+// swift-tools-version:5.9
 
 import PackageDescription
 
-let atoms = Target.Dependency.product(name: "Atoms", package: "swiftui-atom-properties")
+let swiftSettings: [SwiftSetting] = [
+    .unsafeFlags(["-Xfrontend", "-strict-concurrency=complete"]),
+    .unsafeFlags(["-Xfrontend", "-enable-actor-data-race-checks"]),
+]
+
+func target(name: String, dependencies: [Target.Dependency] = []) -> Target {
+    .target(
+        name: name,
+        dependencies: [.product(name: "Atoms", package: "swiftui-atom-properties")] + dependencies,
+        swiftSettings: swiftSettings
+    )
+}
+
+func testTarget(name: String, dependencies: [Target.Dependency]) -> Target {
+    .testTarget(
+        name: name,
+        dependencies: dependencies,
+        swiftSettings: swiftSettings
+    )
+}
 
 let package = Package(
     name: "iOSExamples",
@@ -17,7 +36,7 @@ let package = Package(
         .package(path: "../CrossPlatform"),
     ],
     targets: [
-        .target(
+        target(
             name: "iOSApp",
             dependencies: [
                 .product(name: "CrossPlatformApp", package: "CrossPlatform"),
@@ -27,13 +46,13 @@ let package = Package(
                 "ExampleTimeTravel",
             ]
         ),
-        .target(name: "ExampleMovieDB", dependencies: [atoms]),
-        .testTarget(name: "ExampleMovieDBTests", dependencies: ["ExampleMovieDB"]),
-        .target(name: "ExampleMap", dependencies: [atoms]),
-        .testTarget(name: "ExampleMapTests", dependencies: ["ExampleMap"]),
-        .target(name: "ExampleVoiceMemo", dependencies: [atoms]),
-        .testTarget(name: "ExampleVoiceMemoTests", dependencies: ["ExampleVoiceMemo"]),
-        .target(name: "ExampleTimeTravel", dependencies: [atoms]),
-        .testTarget(name: "ExampleTimeTravelTests", dependencies: ["ExampleTimeTravel"]),
+        target(name: "ExampleMovieDB"),
+        testTarget(name: "ExampleMovieDBTests", dependencies: ["ExampleMovieDB"]),
+        target(name: "ExampleMap"),
+        testTarget(name: "ExampleMapTests", dependencies: ["ExampleMap"]),
+        target(name: "ExampleVoiceMemo"),
+        testTarget(name: "ExampleVoiceMemoTests", dependencies: ["ExampleVoiceMemo"]),
+        target(name: "ExampleTimeTravel"),
+        testTarget(name: "ExampleTimeTravelTests", dependencies: ["ExampleTimeTravel"]),
     ]
 )

Examples/Packages/iOS/Sources/ExampleMap/Atoms.swift

@@ -1,7 +1,7 @@
 import Atoms
 import CoreLocation
 
-final class LocationObserver: NSObject, ObservableObject, CLLocationManagerDelegate {
+final class LocationObserver: NSObject, ObservableObject, CLLocationManagerDelegate, @unchecked Sendable {
     let manager: LocationManagerProtocol
 
     deinit {

Examples/Packages/iOS/Sources/ExampleMap/Dependency/LocationManager.swift

@@ -11,7 +11,7 @@ protocol LocationManagerProtocol: AnyObject {
 
 extension CLLocationManager: LocationManagerProtocol {}
 
-final class MockLocationManager: LocationManagerProtocol {
+final class MockLocationManager: LocationManagerProtocol, @unchecked Sendable {
     weak var delegate: CLLocationManagerDelegate?
     var desiredAccuracy = kCLLocationAccuracyKilometer
     var location: CLLocation? = nil

Examples/Packages/iOS/Sources/ExampleMovieDB/Backend/APIClient.swift

@@ -1,7 +1,7 @@
 import Combine
 import UIKit
 
-protocol APIClientProtocol {
+protocol APIClientProtocol: Sendable {
     func getImage(path: String, size: ImageSize) async throws -> UIImage
     func getNowPlaying(page: Int) async throws -> PagedResponse<Movie>
     func getPopular(page: Int) async throws -> PagedResponse<Movie>
@@ -94,7 +94,7 @@ private extension APIClient {
     }
 }
 
-final class MockAPIClient: APIClientProtocol {
+final class MockAPIClient: APIClientProtocol, @unchecked Sendable {
     var imageResponse = Result<UIImage, Error>.failure(URLError(.unknown))
     var filteredMovieResponse = Result<PagedResponse<Movie>, Error>.failure(URLError(.unknown))
     var creditsResponse = Result<Credits, Error>.failure(URLError(.unknown))

Examples/Packages/iOS/Sources/ExampleMovieDB/Entities/Failable.swift

@@ -1,5 +1,5 @@
 @propertyWrapper
-struct Failable<T: Decodable>: Decodable {
+struct Failable<T: Decodable & Sendable>: Decodable & Sendable {
     var wrappedValue: T?
 
     init(wrappedValue: T?) {

Examples/Packages/iOS/Sources/ExampleMovieDB/Entities/PagedResponse.swift

@@ -1,4 +1,4 @@
-struct PagedResponse<T: Decodable>: Decodable {
+struct PagedResponse<T: Decodable & Sendable>: Decodable, Sendable {
     let page: Int
     let totalPages: Int
     let results: [T]

Examples/Packages/iOS/Sources/ExampleVoiceMemo/Atoms/CommonAtoms.swift

@@ -3,18 +3,18 @@ import Atoms
 import Combine
 import Foundation
 
-struct ValueGenerator {
-    var date: () -> Date
-    var uuid: () -> UUID
-    var temporaryDirectory: () -> String
+struct ValueGenerator: Sendable {
+    var date: @Sendable () -> Date
+    var uuid: @Sendable () -> UUID
+    var temporaryDirectory: @Sendable () -> String
 }
 
 struct ValueGeneratorAtom: ValueAtom, Hashable {
     func value(context: Context) -> ValueGenerator {
         ValueGenerator(
-            date: Date.init,
-            uuid: UUID.init,
-            temporaryDirectory: NSTemporaryDirectory
+            date: { Date.now },
+            uuid: { UUID() },
+            temporaryDirectory: { NSTemporaryDirectory() }
         )
     }
 }

Examples/Packages/iOS/Sources/ExampleVoiceMemo/Dependency/AudioPlayer.swift

@@ -41,7 +41,7 @@ final class AudioPlayer: NSObject, AVAudioPlayerDelegate, AudioPlayerProtocol {
     }
 }
 
-final class MockAudioPlayer: AudioPlayerProtocol {
+final class MockAudioPlayer: AudioPlayerProtocol, @unchecked Sendable {
     private(set) var isPlaying = false
     var playingError: Error?
 

Examples/Packages/iOS/Sources/ExampleVoiceMemo/Dependency/AudioRecorder.swift

@@ -50,7 +50,7 @@ final class AudioRecorder: NSObject, AVAudioRecorderDelegate, AudioRecorderProto
     }
 }
 
-final class MockAudioRecorder: AudioRecorderProtocol {
+final class MockAudioRecorder: AudioRecorderProtocol, @unchecked Sendable {
     var isRecording = false
     var recordingError: Error?
     var currentTime: TimeInterval = 10

Examples/Packages/iOS/Sources/ExampleVoiceMemo/Dependency/AudioSession.swift

@@ -3,13 +3,13 @@ import AVFAudio
 protocol AudioSessionProtocol {
     var recordPermission: AVAudioSession.RecordPermission { get }
 
-    func requestRecordPermissionOnMain(_ response: @escaping (Bool) -> Void)
+    func requestRecordPermissionOnMain(_ response: @escaping @MainActor @Sendable (Bool) -> Void)
     func setActive(_ active: Bool, options: AVAudioSession.SetActiveOptions) throws
     func setCategory(_ category: AVAudioSession.Category, mode: AVAudioSession.Mode, options: AVAudioSession.CategoryOptions) throws
 }
 
 extension AVAudioSession: AudioSessionProtocol {
-    func requestRecordPermissionOnMain(_ response: @escaping (Bool) -> Void) {
+    func requestRecordPermissionOnMain(_ response: @escaping @MainActor @Sendable (Bool) -> Void) {
         requestRecordPermission { isGranted in
             Task { @MainActor in
                 response(isGranted)
@@ -18,16 +18,15 @@ extension AVAudioSession: AudioSessionProtocol {
     }
 }
 
-final class MockAudioSession: AudioSessionProtocol {
-    var requestRecordPermissionResponse: ((Bool) -> Void)?
+final class MockAudioSession: AudioSessionProtocol, @unchecked Sendable {
+    var requestRecordPermissionResponse: (@MainActor @Sendable (Bool) -> Void)?
     var isActive = false
     var currentCategory: AVAudioSession.Category?
     var currentMode: AVAudioSession.Mode?
     var currentOptions: AVAudioSession.CategoryOptions?
-
     var recordPermission = AVAudioSession.RecordPermission.granted
 
-    func requestRecordPermissionOnMain(_ response: @escaping (Bool) -> Void) {
+    func requestRecordPermissionOnMain(_ response: @escaping @MainActor @Sendable (Bool) -> Void) {
         requestRecordPermissionResponse = response
     }