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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 TextBufferKit with Swift 6.0 for macOS (SPM).

Swift 6 data race errors: 1

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/migueldeicaza/TextBufferKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/migueldeicaza/TextBufferKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at 99b46c4 Make Position constructor public
Cloned https://github.com/migueldeicaza/TextBufferKit.git
Revision (git rev-parse @):
99b46c47658c07de5f89f3fd7240f7ead12d84f6
SUCCESS checkout https://github.com/migueldeicaza/TextBufferKit.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/migueldeicaza/TextBufferKit.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
[3/11] Compiling TextBufferKit SearchData.swift
[4/11] Compiling TextBufferKit PieceTreeTextBuffer.swift
[5/11] Compiling TextBufferKit FindMatch.swift
[6/11] Compiling TextBufferKit Position.swift
[7/11] Compiling TextBufferKit Range.swift
[8/11] Compiling TextBufferKit PieceTreeBase.swift
/Users/admin/builder/spi-builder-workspace/Sources/TextBufferKit/TreeBase.swift:69:16: warning: static property 'SENTINEL' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 67 |     }
 68 |
 69 |     static var SENTINEL: TreeNode = TreeNode(Piece(bufferIndex: 0, start: BufferCursor(line: 0,column: 0), end: BufferCursor(line: 0, column: 0), length: 0, lineFeedCount: 0), .black);
    |                |- warning: static property 'SENTINEL' 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 'SENTINEL' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'SENTINEL' 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
 70 |
 71 |     public func next() -> TreeNode {
[9/11] Compiling TextBufferKit TreeBase.swift
/Users/admin/builder/spi-builder-workspace/Sources/TextBufferKit/TreeBase.swift:69:16: warning: static property 'SENTINEL' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 67 |     }
 68 |
 69 |     static var SENTINEL: TreeNode = TreeNode(Piece(bufferIndex: 0, start: BufferCursor(line: 0,column: 0), end: BufferCursor(line: 0, column: 0), length: 0, lineFeedCount: 0), .black);
    |                |- warning: static property 'SENTINEL' 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 'SENTINEL' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'SENTINEL' 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
 70 |
 71 |     public func next() -> TreeNode {
[10/11] Compiling TextBufferKit PieceTreeBuilder.swift
[11/11] Emitting module TextBufferKit
/Users/admin/builder/spi-builder-workspace/Sources/TextBufferKit/TreeBase.swift:69:16: warning: static property 'SENTINEL' is not concurrency-safe because it is non-isolated global shared mutable state; this is an error in the Swift 6 language mode
 67 |     }
 68 |
 69 |     static var SENTINEL: TreeNode = TreeNode(Piece(bufferIndex: 0, start: BufferCursor(line: 0,column: 0), end: BufferCursor(line: 0, column: 0), length: 0, lineFeedCount: 0), .black);
    |                |- warning: static property 'SENTINEL' 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 'SENTINEL' to a 'let' constant to make 'Sendable' shared state immutable
    |                |- note: annotate 'SENTINEL' 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
 70 |
 71 |     public func next() -> TreeNode {
Build complete! (20.02s)
Build complete.
{
  "dependencies" : [
  ],
  "manifest_display_name" : "TextBufferKit",
  "name" : "TextBufferKit",
  "path" : "/Users/admin/builder/spi-builder-workspace",
  "platforms" : [
  ],
  "products" : [
    {
      "name" : "TextBufferKit",
      "targets" : [
        "TextBufferKit"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "TextBufferKitTests",
      "module_type" : "SwiftTarget",
      "name" : "TextBufferKitTests",
      "path" : "Tests/TextBufferKitTests",
      "sources" : [
        "PieceTreeTextBufferTests.swift",
        "TextBufferKitTests.swift"
      ],
      "target_dependencies" : [
        "TextBufferKit"
      ],
      "type" : "test"
    },
    {
      "c99name" : "TextBufferKit",
      "module_type" : "SwiftTarget",
      "name" : "TextBufferKit",
      "path" : "Sources/TextBufferKit",
      "product_memberships" : [
        "TextBufferKit"
      ],
      "sources" : [
        "FindMatch.swift",
        "PieceTreeBase.swift",
        "PieceTreeBuilder.swift",
        "PieceTreeTextBuffer.swift",
        "Position.swift",
        "Range.swift",
        "SearchData.swift",
        "TreeBase.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.3"
}
Done.
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.