modern-swift

Migrate completion handlers to async await in Swift by refactoring asynchronous functions to return values directly rather than via callbacks. This transition replaces nested closures with sequential code, simplifying readability and error handling using modern Swift concurrency patterns.

Actor isolation prevents data races in Swift by serializing access to the actor's mutable state, ensuring only one task executes code within the actor at a time. This mechanism guarantees safe concurrent access to shared state without explicit locks.

Sendable constraints are needed when passing data across concurrency boundaries in Swift, such as dispatching work to a Task. Marking types as Sendable ensures they can be safely shared across actors without introducing data races during concurrent execution.

Run parallel network tasks in Swift using TaskGroup to concurrently execute multiple asynchronous operations. This approach manages dynamic parallel work safely, collecting results efficiently while maintaining strict concurrency safety across UI and data processing operations.

Enable strict concurrency in a Swift codebase by activating strict concurrency checking in build settings and resolving resulting warnings. This process identifies unsafe shared mutable state, guiding the adoption of actors and Sendable constraints for safe concurrent execution.