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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 CustomTabView, reference v1.0.0 (62b53a), with Swift 6.0 for macOS (SPM) on 3 Nov 2024 22:19:30 UTC.

Swift 6 data race errors: 2

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/NicFontana/SwiftUI-CustomTabView.git
Reference: v1.0.0
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/NicFontana/SwiftUI-CustomTabView
 * tag               v1.0.0     -> FETCH_HEAD
HEAD is now at 62b53a6 chore: update README.md
Cloned https://github.com/NicFontana/SwiftUI-CustomTabView.git
Revision (git rev-parse @):
62b53a657f75fd0c2eaee361f2956ad2e34f353e
SUCCESS checkout https://github.com/NicFontana/SwiftUI-CustomTabView.git at v1.0.0
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swiftui-customtabview",
      "name": "CustomTabView",
      "url": "https://github.com/NicFontana/SwiftUI-CustomTabView.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftUI-CustomTabView",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/NicFontana/SwiftUI-CustomTabView.git
[1/106] Fetching swiftui-customtabview
Fetched https://github.com/NicFontana/SwiftUI-CustomTabView.git from cache (1.09s)
Creating working copy for https://github.com/NicFontana/SwiftUI-CustomTabView.git
Working copy of https://github.com/NicFontana/SwiftUI-CustomTabView.git resolved at v1.0.0 (62b53a6)
warning: '.resolve-product-dependencies': dependency 'swiftui-customtabview' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/NicFontana/SwiftUI-CustomTabView.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun 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--7754E27361AE5C74.txt
[3/12] Compiling CustomTabView CustomTabView.swift
[4/12] Compiling CustomTabView Tab.swift
[5/12] Emitting module CustomTabView
/Users/admin/builder/spi-builder-workspace/Sources/CustomTabView/EnvironmentValues+TabBarPosition.swift:24:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'TabBarPosition' may have shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | /// An enumaration that is used to set the tab bar view position.
11 | public enum TabBarPosition {
   |             `- note: consider making enum 'TabBarPosition' conform to the 'Sendable' protocol
12 |     /// Puts the tab bar next to the content, at one edge of the scene.
13 |     ///
   :
22 |
23 | private struct TabBarPositionEnvironmentKey: EnvironmentKey {
24 |     static let defaultValue: TabBarPosition = .edge(.bottom)
   |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'TabBarPosition' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'defaultValue' 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
25 | }
26 |
/Users/admin/builder/spi-builder-workspace/Sources/CustomTabView/Example/TopIndicatorTabBarView.swift:83:16: warning: static property 'defaultValue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 81 |
 82 | struct SizePreferenceKey: PreferenceKey {
 83 |     static var defaultValue: CGSize = .zero
    |                |- warning: static property 'defaultValue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: convert 'defaultValue' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'defaultValue' 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
 84 |     static func reduce(value: inout CGSize, nextValue: () -> CGSize) {}
 85 | }
[6/12] Compiling CustomTabView BottomFloatingTabBarView.swift
[7/12] Compiling CustomTabView UITabBarControllerRepresentable.swift
[8/12] Compiling CustomTabView TopIndicatorTabBarView.swift
/Users/admin/builder/spi-builder-workspace/Sources/CustomTabView/Example/TopIndicatorTabBarView.swift:83:16: warning: static property 'defaultValue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
 81 |
 82 | struct SizePreferenceKey: PreferenceKey {
 83 |     static var defaultValue: CGSize = .zero
    |                |- warning: static property 'defaultValue' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
    |                |- note: convert 'defaultValue' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'defaultValue' 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
 84 |     static func reduce(value: inout CGSize, nextValue: () -> CGSize) {}
 85 | }
[9/12] Compiling CustomTabView ExampleView.swift
[10/12] Compiling CustomTabView EnvironmentValues+TabBarPosition.swift
/Users/admin/builder/spi-builder-workspace/Sources/CustomTabView/EnvironmentValues+TabBarPosition.swift:24:16: warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'TabBarPosition' may have shared mutable state; this is an error in the Swift 6 language mode
 9 |
10 | /// An enumaration that is used to set the tab bar view position.
11 | public enum TabBarPosition {
   |             `- note: consider making enum 'TabBarPosition' conform to the 'Sendable' protocol
12 |     /// Puts the tab bar next to the content, at one edge of the scene.
13 |     ///
   :
22 |
23 | private struct TabBarPositionEnvironmentKey: EnvironmentKey {
24 |     static let defaultValue: TabBarPosition = .edge(.bottom)
   |                |- warning: static property 'defaultValue' is not concurrency-safe because non-'Sendable' type 'TabBarPosition' may have shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: annotate 'defaultValue' 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
25 | }
26 |
[11/12] Compiling CustomTabView KeyboardReadable.swift
[12/12] Compiling CustomTabView NSTabBarControllerRepresentable.swift
Build complete! (21.71s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "CustomTabView",
  "name" : "CustomTabView",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "ios",
      "version" : "13.0"
    },
    {
      "name" : "macos",
      "version" : "10.15"
    }
  ],
  "products" : [
    {
      "name" : "CustomTabView",
      "targets" : [
        "CustomTabView"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "CustomTabViewTests",
      "module_type" : "SwiftTarget",
      "name" : "CustomTabViewTests",
      "path" : "Tests/CustomTabViewTests",
      "sources" : [
        "CustomTabViewTests.swift"
      ],
      "target_dependencies" : [
        "CustomTabView"
      ],
      "type" : "test"
    },
    {
      "c99name" : "CustomTabView",
      "module_type" : "SwiftTarget",
      "name" : "CustomTabView",
      "path" : "Sources/CustomTabView",
      "product_memberships" : [
        "CustomTabView"
      ],
      "sources" : [
        "CustomTabView.swift",
        "EnvironmentValues+TabBarPosition.swift",
        "Example/BottomFloatingTabBarView.swift",
        "Example/ExampleView.swift",
        "Example/Tab.swift",
        "Example/TopIndicatorTabBarView.swift",
        "iOS/KeyboardReadable.swift",
        "iOS/UITabBarControllerRepresentable.swift",
        "macOS/NSTabBarControllerRepresentable.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.7"
}
Done.