axiom-swift-concurrency

Adopt Swift concurrency by progressively transitioning single-threaded functions to async/await, then implementing Sendable data patterns, and finally isolating state with actors to ensure thread safety.

Prevent data races in Swift by using explicit actor isolation and Sendable data patterns, which safely confine mutable state and ensure concurrent code executes without memory conflicts.

MainActor ensures UI safety by isolating main-thread UI updates from background tasks, preventing main-thread bottlenecks and blocking concurrent subsystems from directly mutating UI state.

Use Sendable and nonisolated in Swift when sharing data across concurrent boundaries and isolating actor subsystems, ensuring safe concurrent execution without compromising existing non-UI thread safety.

Yes, you can use actors to build non-UI subsystems that handle background tasks safely, explicitly isolating state away from the main thread to reduce contention in real apps.

Explicit actor isolation matters because it guarantees safe state access when scaling Swift code from single-threaded to concurrent architectures, systematically eliminating data races during stepwise adoption.