Supporting Swift 6

.github/workflows/swift.yml

@@ -18,10 +18,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - xcode: "Xcode_15.0.1"
-            runsOn: macos-13
-          - xcode: "Xcode_14.3.1"
-            runsOn: macos-13
+          - xcode: "Xcode_16.0"
+            runsOn: macos-15
+          - xcode: "Xcode_15.4"
+            runsOn: macos-14
     steps:
       - uses: actions/checkout@v4
       - name: Select Xcode

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 5.8
+// swift-tools-version: 6.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription

Package@swift-5.10.swift

@@ -0,0 +1,53 @@
+// swift-tools-version: 5.10
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "Prefire",
+    platforms: [.iOS(.v14)],
+    products: [
+        .library(
+            name: "Prefire",
+            targets: ["Prefire"]
+        ),
+        .plugin(
+            name: "PrefirePlaybookPlugin",
+            targets: ["PrefirePlaybookPlugin"]
+        ),
+        .plugin(
+            name: "PrefireTestsPlugin",
+            targets: ["PrefireTestsPlugin"]
+        ),
+    ],
+    targets: [
+        .target(
+            name: "Prefire",
+            dependencies: []
+        ),
+        .plugin(
+            name: "PrefirePlaybookPlugin",
+            capability: .buildTool(),
+            dependencies: [
+                "PrefireBinary",
+                "PrefireSourcery",
+            ]
+        ),
+        .plugin(
+            name: "PrefireTestsPlugin",
+            capability: .buildTool(),
+            dependencies: [
+                "PrefireBinary",
+                "PrefireSourcery",
+            ]
+        ),
+        .binaryTarget(
+            name: "PrefireBinary",
+            path: "Binaries/PrefireBinary.artifactbundle"
+        ),
+        .binaryTarget(
+            name: "PrefireSourcery",
+            path: "PrefireExecutable/Binaries/PrefireSourcery.artifactbundle"
+        ),
+    ]
+)

PrefireExecutable/Sources/prefire/Previews/PreviewLoader+Playbook.swift

@@ -18,6 +18,7 @@ extension PreviewLoader {
 
         return yamlSettings +
             """
+                @MainActor
                 private struct MacroPreviews {
                     static var previews: [PreviewModel] = [
             \(previewModels)

Sources/Prefire/Playbook/PlaybookView.swift

@@ -4,8 +4,8 @@ import SwiftUI
 extension CGFloat {
     static let scale: CGFloat = 0.55
     static let infoViewHeight: CGFloat = 42
-    static let screenHeight = UIScreen.main.bounds.height
-    static let screeenWidth = UIScreen.main.bounds.width
+    @MainActor static let screenHeight = UIScreen.main.bounds.height
+    @MainActor static let screenWidth = UIScreen.main.bounds.width
 }
 
 /// View to show different states of components and screens
@@ -78,7 +78,7 @@ public struct PlaybookView: View {
     private func componentList(for name: String) -> some View {
         ScrollView(.horizontal, showsIndicators: false) {
             HStack(alignment: .top, spacing: 16) {
-                ForEach($viewModels) { $viewModel in
+                ForEach($viewModels, id: \.id) { $viewModel in
                     if viewModel.name == name || viewModel.story == name {
                         VStack {
                             if !isComponent {
@@ -102,10 +102,7 @@ public struct PlaybookView: View {
     }
 
     struct PreviewView: View, Identifiable {
-        @inlinable
-        var id: String {
-            viewModel.id
-        }
+        let id: String
 
         let isComponent: Bool
 
@@ -116,6 +113,16 @@ public struct PlaybookView: View {
         @Binding var sectionNames: [String]
         @Environment(\.colorScheme) private var colorScheme
 
+        init(isComponent: Bool, selectedId: Binding<String>, navigationLinkTriggered: Binding<Bool>, viewModel: Binding<PreviewModel>, viewModels: Binding<[PreviewModel]>, sectionNames: Binding<[String]>) {
+            self.id = viewModel.wrappedValue.id
+            self.isComponent = isComponent
+            _selectedId = selectedId
+            _navigationLinkTriggered = navigationLinkTriggered
+            _viewModel = viewModel
+            _viewModels = viewModels
+            _sectionNames = sectionNames
+        }
+
         var body: some View {
             Button(action: {
                 selectedId = viewModel.id
@@ -160,12 +167,13 @@ public struct PlaybookView: View {
         let id: String
         let isScreen: Bool
         var view: Content
-        @Environment(\.safeAreaInsets) private var safeAreaInsets
+
+        @State private var safeAreaInsets = UIApplication.shared.windows.first?.safeAreaInsets ?? UIEdgeInsets()
 
         var body: some View {
             view
                 .allowsHitTesting(false)
-                .frame(width: .screeenWidth)
+                .frame(width: .screenWidth)
                 .transformIf(isScreen) { view in
                     view.frame(height: .screenHeight - safeAreaInsets.top + safeAreaInsets.bottom - .infoViewHeight)
                 }

Sources/Prefire/Preview/PreferenceKeys.swift

@@ -1,7 +1,7 @@
 import SwiftUI
 
 public struct UserStoryPreferenceKey: PreferenceKey {
-    public static var defaultValue: PreviewModel.UserStory?
+    public static let defaultValue: PreviewModel.UserStory? = nil
 
     public static func reduce(value: inout PreviewModel.UserStory?, nextValue: () -> PreviewModel.UserStory?) {
         value = nextValue()
@@ -22,7 +22,7 @@ public extension View {
 // MARK: - State
 
 public struct StatePreferenceKey: PreferenceKey {
-    public static var defaultValue: PreviewModel.State?
+    public static let defaultValue: PreviewModel.State? = nil
 
     public static func reduce(value: inout PreviewModel.State?, nextValue: () -> PreviewModel.State?) {
         value = nextValue()
@@ -43,23 +43,23 @@ public extension View {
 // MARK: - Snapshot Attributes
 
 public struct DelayPreferenceKey: PreferenceKey {
-    public static var defaultValue: TimeInterval = 0.0
+    public static let defaultValue: TimeInterval = 0.0
 
     public static func reduce(value: inout TimeInterval, nextValue: () -> TimeInterval) {
         value = nextValue()
     }
 }
 
 public struct PrecisionPreferenceKey: PreferenceKey {
-    public static var defaultValue: Float = 1.0
+    public static let defaultValue: Float = 1.0
 
     public static func reduce(value: inout Float, nextValue: () -> Float) {
         value = nextValue()
     }
 }
 
 public struct PerceptualPrecisionPreferenceKey: PreferenceKey {
-    public static var defaultValue: Float = 1.0
+    public static let defaultValue: Float = 1.0
 
     public static func reduce(value: inout Float, nextValue: () -> Float) {
         value = nextValue()

Sources/Prefire/Preview/PreviewModel.swift

@@ -52,6 +52,7 @@ public struct PreviewModel: Identifiable {
     /// The time from when a view was created (`.init`) to when it was shown (`.onAppear`)
     public var renderTime: String?
 
+    @MainActor
     public init(
         id: String? = nil,
         content: @escaping () -> any View,
@@ -66,6 +67,7 @@ public struct PreviewModel: Identifiable {
         self.device = device
     }
 
+    @MainActor
     public init(
         id: String? = nil,
         content: @escaping () -> UIView,
@@ -76,6 +78,7 @@ public struct PreviewModel: Identifiable {
         self.init(id: id, content: { AnyView(ViewRepresentable(view: content())) }, name: name, type: type, device: device)
     }
 
+    @MainActor
     public init(
         id: String? = nil,
         content: @escaping () -> UIViewController,

Templates/PreviewModels.stencil

@@ -11,6 +11,7 @@ import {{ import }}
 {% endfor %}
 
 public enum PreviewModels {
+    @MainActor
     public static var models: [PreviewModel] = {
         var views: [PreviewModel] = []
 #if !PLAYBOOK_DISABLED
@@ -28,6 +29,7 @@ public enum PreviewModels {
     }()
 
     @inlinable
+    @MainActor
     static func createModel<Preview: PreviewProvider>(for preview: Preview.Type, name: String) -> [PreviewModel] {
         var views: [PreviewModel] = []
 

Templates/PreviewTests.stencil

@@ -116,12 +116,12 @@ class PreviewTests: XCTestCase {
         #if canImport(AccessibilitySnapshot)
             let vc = UIHostingController(rootView: matchingView)
             vc.view.frame = UIScreen.main.bounds
-            assertSnapshot(
+
+            SnapshotTesting.assertSnapshot(
                 matching: vc,
-                as: .wait(for: delay, on: .accessibilityImage(showActivationPoints: .always)),
-                named: prefireSnapshot.name.flatMap { $0 + ".accessibility" }{% if argument.file %},
+                as: .wait(for: delay, on: .accessibilityImage(showActivationPoints: .always)){% if argument.file %},
                 file: file{% endif %},
-                testName: prefireSnapshot.name
+                testName: prefireSnapshot.name + ".accessibility"
             )
         #endif
         return failure