swift-expert

Refactoring Objective-C to Swift 5.9 involves migrating legacy architecture to modern SwiftUI views, replacing completion handlers with async/await concurrency patterns, and verifying performance and error handling against Swift API design guidelines.

Modern Swift concurrency uses async/await and actors to manage parallel execution safely. Actors prevent data races by serializing access to their mutable state, ensuring robust error handling and high-performance execution across Apple platforms.

Protocol-oriented programming optimizes iOS and macOS application performance by leveraging protocol extensions for shared behavior. This reduces code duplication, enables compile-time polymorphism, and ensures strict adherence to Swift API design guidelines.

This approach supports both Apple platforms like iOS and macOS, as well as server-side Swift environments. It provides expert guidance for robust, high-performance application development using Swift 5.9+ across these distinct targets.

Ensuring SwiftUI and async/await implementations follow Swift API design guidelines requires verifying API clarity, consistent naming conventions, and robust error handling. Expert Swift development focuses on architectural adherence and performance optimization.

Use actors instead of standard async/await when you need to protect mutable shared state from data races. Actors serialize access to their internal data, ensuring safe concurrency in high-performance Swift 5.9+ applications.