swift-actor-persistence

To prevent data races in Swift, use an actor-based repository to serialize access to shared mutable state. This approach eliminates data races at compile time through actor isolation, removing the need for manual locks in concurrent code.

Implement thread-safe local storage by using an actor-based LocalRepository that supports generic Codable and Identifiable items. It provides async-safe APIs for saving, deleting, and loading data while maintaining in-memory caching with atomic file persistence for durability.

Yes, Swift actor isolation works for offline-first app data caching by serializing access to local repositories. It automatically handles async usage, ensuring shared mutable state like settings and local data caches are accessed safely without explicit locking mechanisms.

The best way to manage shared mutable state in Swift 5.5 without manual locks is using actor-based repositories. Actors serialize access to state automatically, providing compile-time data race safety and async-safe operations for file-backed persistence and in-memory caching.

Why should I use actors instead of dispatch queues for Swift concurrency and data persistence? You should use actors instead of dispatch queues for Swift concurrency because actors provide compile-time data race elimination through actor isolation. Unlike manual locking with queues, actors automatically serialize access to shared state, simplifying async-safe file persistence and caching.