swift-concurrency-expert

To fix Swift data race compiler errors, apply actor isolation, add Sendable conformance, and offload background work to resolve data-race safety violations. This process involves annotating UI-bound types with @MainActor and isolating global state.

SwiftUI code has actor isolation violations when UI-bound types lack proper @MainActor annotations or mutable state is accessed concurrently without Sendable conformance. Reviewing protocol conformance on main actor types identifies these concurrency violations.

Sendable conformance is a Swift protocol that marks types as safe to pass across concurrency boundaries without causing data races. You need Sendable conformance when passing custom types between actors or concurrent tasks to ensure compile-time data-race safety.

Yes, you can review Swift 6.2 concurrency issues in existing codebases by analyzing code for potential data races, actor isolation violations, and global static state issues. It targets background work offloading and UI-bound types to remediate compiler errors.

The best way to apply @MainActor annotations is to target UI-bound types and protocol conformances on main actor types within your Swift codebase. This ensures UI updates execute on the main thread while offloading background work to isolated actors.

To handle global and static state data races in Swift, apply actor isolation to protect mutable global state and ensure static variables conform to Sendable. This prevents concurrent access violations and resolves data-race safety compiler errors.