swift-concurrency

To prevent data races across Swift actor boundaries, isolate UI layers with @MainActor, run long-running tasks in actors, and ensure all cross-boundary values conform to Sendable. Guard any mutations crossing these isolation domains.

The best way to handle UI state updates with Swift structured concurrency is isolating Views and ViewModels to @MainActor. This ensures state updates occur on the main thread while heavy data loading runs independently in actors.

Implement cancellation in Swift AsyncSequence workflows by applying structured concurrency with async/await and TaskGroup. Replace detached tasks with structured tasks to enforce predictable, safe cancellation across asynchronous streams.

You need Sendable conformance in Swift asynchronous workflows when passing pure values across actor boundaries. It guarantees safe, concurrent data handling without data races when crossing between isolated contexts like @MainActor and actors.

Yes, you can use Swift actors for long-running data loading in a SwiftUI app. Repositories and data sources should leverage actors for background processing while coordinators and ViewModels remain isolated to @MainActor.