Swift 6

CMakeLists.txt

@@ -22,6 +22,7 @@ set(F5M_TARGET "${CMAKE_OSX_ARCHITECTURES}-apple-macos${CMAKE_OSX_DEPLOYMENT_TAR
 add_compile_options(-target "${F5M_TARGET}")
 add_link_options(-target "${F5M_TARGET}")
 
+set(CMAKE_Swift_LANGUAGE_VERSION 6)
 # Disallow InitializeSwift to execute link_directories which adds Xcode paths to rpath.
 set(SWIFT_LIBRARY_SEARCH_PATHS "")
 include(InitializeSwift)

src/config/about.swift

@@ -294,8 +294,9 @@ struct AboutView: View {
     // It's necessary to disable not only for cleaning up.
     // Without this, if user cancels sudo prompt and try again, UI will hang.
     disableInputMethod()
+    let userDataParam = removeUserData ? "true" : "false"
     DispatchQueue.global().async {
-      if !sudo("uninstall", removeUserData ? "true" : "false", uninstallLog) {
+      if !sudo("uninstall", userDataParam, uninstallLog) {
         DispatchQueue.main.async {
           uninstalling = false
           uninstallFailed = true

src/config/menu.swift

@@ -12,6 +12,7 @@ func restartAndReconnect(_ actionBetween: (() -> Void)? = nil) {
 }
 
 // Don't call it synchronously in SwiftUI as it will make IM temporarily unavailable in focused client.
+@MainActor
 func restartProcess() {
   NSApp.terminate(nil)
 }
@@ -41,6 +42,7 @@ extension FcitxInputController {
     openWindow("plugin", PluginManager.self)
   }
 
+  @MainActor
   @objc func restart(_: Any? = nil) {
     restartProcess()
   }

src/config/optionviews.swift

@@ -454,6 +454,7 @@ struct UnsupportedOptionView: OptionView {
   }
 }
 
+@MainActor
 func buildViewImpl(label: String, option: any Option) -> any OptionView {
   if let option = option as? BooleanOption {
     return BooleanOptionView(label: label, model: option)
@@ -506,6 +507,7 @@ func buildViewImpl(label: String, option: any Option) -> any OptionView {
   }
 }
 
+@MainActor
 func buildViewImpl(config: Config) -> any OptionView {
   switch config.kind {
   case .group(let children):
@@ -515,6 +517,7 @@ func buildViewImpl(config: Config) -> any OptionView {
   }
 }
 
+@MainActor
 func buildView(config: Config) -> AnyView {
   AnyView(buildViewImpl(config: config))
 }

src/config/plugin.swift

@@ -5,6 +5,7 @@ import SwiftUI
 import SwiftyJSON
 import UniformTypeIdentifiers
 
+@MainActor
 struct Plugin: Identifiable, Hashable {
   let id: String
   let category: String
@@ -13,12 +14,14 @@ struct Plugin: Identifiable, Hashable {
   var dependencies: [String] = []
 }
 
-private var pluginMap = officialPlugins.reduce(into: [String: Plugin]()) { result, plugin in
+private let pluginMap = officialPlugins.reduce(into: [String: Plugin]()) { result, plugin in
   result[plugin.id] = plugin
 }
 
 // fcitx5 doesn't unload addons from memory, so once loaded, we have to restart process to use an updated version.
+@MainActor
 private var inMemoryPlugins = [String]()
+@MainActor
 private var needsRestart = false
 
 private func getInstalledPlugins() -> [Plugin] {
@@ -46,6 +49,7 @@ private func getAutoAddIms(_ plugin: String) -> [String] {
   return json["input_methods"].arrayValue.map { $0.stringValue }
 }
 
+@MainActor
 class PluginVM: ObservableObject {
   @Published private(set) var installedPlugins = [Plugin]()
   @Published private(set) var availablePlugins = [Plugin]()
@@ -233,6 +237,8 @@ struct PluginView: View {
         pluginVM.dataAvailable.removeAll()
 
         var countedPlugins = Set<String>()
+
+        @MainActor
         func helper(_ plugin: String) {
           if countedPlugins.contains(plugin) {
             return

src/config/ui.swift

@@ -25,6 +25,7 @@ extension View {
   }
 }
 
+@MainActor
 func footer(reset: @escaping () -> Void, apply: @escaping () -> Void, close: @escaping () -> Void)
   -> some View
 {
@@ -143,6 +144,7 @@ struct SelectFileButton<Label>: View where Label: View {
   }
 }
 
+@MainActor
 func selectApplication(_ openPanel: NSOpenPanel, onFinish: @escaping (String) -> Void) {
   openPanel.allowsMultipleSelection = false
   openPanel.canChooseDirectories = false