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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of PureMVC with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 4

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/puremvc/puremvc-swift-standard-framework.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/puremvc/puremvc-swift-standard-framework
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c6749cc update
Cloned https://github.com/puremvc/puremvc-swift-standard-framework.git
Revision (git rev-parse @):
c6749ccd16ca9e0ea420fa06b4dcf81389a821e7
SUCCESS checkout https://github.com/puremvc/puremvc-swift-standard-framework.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/puremvc/puremvc-swift-standard-framework.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-6F35C1178C84523A.txt
[3/22] Emitting module PureMVC
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Controller.swift:53:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 51 |
 52 |     // Singleton instance
 53 |     private static var instance: IController?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 54 |
 55 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Model.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // Singleton instance
 42 |     private static var instance: IModel?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/View.swift:47:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 45 |
 46 |     // Singleton instance
 47 |     private static var instance: IView?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 48 |
 49 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/patterns/facade/Facade.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // The Singleton Facade instance
 42 |     private static var instance: IFacade?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
[4/24] Compiling PureMVC Observer.swift
[5/24] Compiling PureMVC Proxy.swift
[6/24] Compiling PureMVC Notification.swift
[7/24] Compiling PureMVC Notifier.swift
[8/24] Compiling PureMVC IProxy.swift
[9/24] Compiling PureMVC IView.swift
[10/24] Compiling PureMVC MacroCommand.swift
[11/24] Compiling PureMVC SimpleCommand.swift
[12/24] Compiling PureMVC IModel.swift
[13/24] Compiling PureMVC INotification.swift
[14/24] Compiling PureMVC Facade.swift
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/patterns/facade/Facade.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // The Singleton Facade instance
 42 |     private static var instance: IFacade?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
[15/24] Compiling PureMVC Mediator.swift
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/patterns/facade/Facade.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // The Singleton Facade instance
 42 |     private static var instance: IFacade?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
[16/24] Compiling PureMVC ICommand.swift
[17/24] Compiling PureMVC IController.swift
[18/24] Compiling PureMVC IFacade.swift
[19/24] Compiling PureMVC IMediator.swift
[20/24] Compiling PureMVC INotifier.swift
[21/24] Compiling PureMVC IObserver.swift
[22/24] Compiling PureMVC Controller.swift
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Controller.swift:53:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 51 |
 52 |     // Singleton instance
 53 |     private static var instance: IController?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 54 |
 55 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Model.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // Singleton instance
 42 |     private static var instance: IModel?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/View.swift:47:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 45 |
 46 |     // Singleton instance
 47 |     private static var instance: IView?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 48 |
 49 |     // Concurrent queue for singleton instance
[23/24] Compiling PureMVC Model.swift
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Controller.swift:53:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 51 |
 52 |     // Singleton instance
 53 |     private static var instance: IController?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 54 |
 55 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Model.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // Singleton instance
 42 |     private static var instance: IModel?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/View.swift:47:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 45 |
 46 |     // Singleton instance
 47 |     private static var instance: IView?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 48 |
 49 |     // Concurrent queue for singleton instance
[24/24] Compiling PureMVC View.swift
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Controller.swift:53:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 51 |
 52 |     // Singleton instance
 53 |     private static var instance: IController?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 54 |
 55 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/Model.swift:42:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 40 |
 41 |     // Singleton instance
 42 |     private static var instance: IModel?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 43 |
 44 |     // Concurrent queue for singleton instance
/Users/admin/builder/spi-builder-workspace/Sources/PureMVC/core/View.swift:47:24: warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 45 |
 46 |     // Singleton instance
 47 |     private static var instance: IView?
    |                        |- warning: static property 'instance' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
    |                        |- note: convert 'instance' to a 'let' constant to make 'Sendable' shared state immutable
    |                        |- note: annotate 'instance' with '@MainActor' if property should only be accessed from the main actor
    |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 48 |
 49 |     // Concurrent queue for singleton instance
Build complete! (21.41s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "PureMVC",
  "name" : "PureMVC",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "PureMVC",
      "targets" : [
        "PureMVC"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "PureMVCTests",
      "module_type" : "SwiftTarget",
      "name" : "PureMVCTests",
      "path" : "Tests/PureMVCTests",
      "sources" : [
        "core/ControllerTest.swift",
        "core/ControllerTestCommand.swift",
        "core/ControllerTestCommand2.swift",
        "core/ControllerTestVO.swift",
        "core/ModelTest.swift",
        "core/ModelTestProxy.swift",
        "core/ViewTest.swift",
        "core/ViewTestMediator.swift",
        "core/ViewTestMediator2.swift",
        "core/ViewTestMediator3.swift",
        "core/ViewTestMediator4.swift",
        "core/ViewTestMediator5.swift",
        "core/ViewTestMediator6.swift",
        "core/ViewTestNote.swift",
        "core/ViewTestVO.swift",
        "patterns/command/MacroCommandTest.swift",
        "patterns/command/MacroCommandTestCommand.swift",
        "patterns/command/MacroCommandTestSub1Command.swift",
        "patterns/command/MacroCommandTestSub2Command.swift",
        "patterns/command/MacroCommandTestVO.swift",
        "patterns/command/SimpleCommandTest.swift",
        "patterns/command/SimpleCommandTestCommand.swift",
        "patterns/command/SimpleCommandTestVO.swift",
        "patterns/facade/FacadeTest.swift",
        "patterns/facade/FacadeTestCommand.swift",
        "patterns/facade/FacadeTestVO.swift",
        "patterns/mediator/MediatorTest.swift",
        "patterns/observer/NotificationTest.swift",
        "patterns/observer/NotifierTest.swift",
        "patterns/observer/ObserverTest.swift",
        "patterns/proxy/ProxyTest.swift"
      ],
      "target_dependencies" : [
        "PureMVC"
      ],
      "type" : "test"
    },
    {
      "c99name" : "PureMVC",
      "module_type" : "SwiftTarget",
      "name" : "PureMVC",
      "path" : "Sources/PureMVC",
      "product_memberships" : [
        "PureMVC"
      ],
      "sources" : [
        "core/Controller.swift",
        "core/Model.swift",
        "core/View.swift",
        "interfaces/ICommand.swift",
        "interfaces/IController.swift",
        "interfaces/IFacade.swift",
        "interfaces/IMediator.swift",
        "interfaces/IModel.swift",
        "interfaces/INotification.swift",
        "interfaces/INotifier.swift",
        "interfaces/IObserver.swift",
        "interfaces/IProxy.swift",
        "interfaces/IView.swift",
        "patterns/command/MacroCommand.swift",
        "patterns/command/SimpleCommand.swift",
        "patterns/facade/Facade.swift",
        "patterns/mediator/Mediator.swift",
        "patterns/observer/Notification.swift",
        "patterns/observer/Notifier.swift",
        "patterns/observer/Observer.swift",
        "patterns/proxy/Proxy.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.1"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.