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Languages & runtimes · #swift
Use Swift actors and async/await to protect mutable shared state instead of manual locks, with compiler-enforced isolation and Sendable checks.
Use Swift actors for mutable shared state in new code targeting iOS 15+/macOS 12+. Actors provide compile-time data-race isolation; DispatchQueue only serializes at runtime and deadlocks easily. Includes decision criteria, comparison table, trade-offs, and a verified Counter actor implementation.
Learn how to eliminate data races in Swift using Actors, @MainActor, and structured concurrency to manage shared state safely in asynchronous environments.
Learn how to combine Swift Actors and Structured Concurrency to eliminate data races in network-heavy applications while maintaining efficient resource management.
Learn how to prevent data races and handle actor reentrancy in Swift. This guide covers the Isolated State pattern, Sendable boundaries, and strict concurrency verification.
Learn when to rely on Realm’s automatic migration, how to set it up, and what pitfalls to avoid. A step‑by‑step example shows adding a new field without boilerplate, plus a quick trade‑off discussion between auto and manual migrations.
Swift's structured concurrency with async/await makes async work linear and cancellable. See how a nested completion handler flow becomes a structured async chain with TaskGroup and actors, plus the limits to watch.
Stop fighting data races with manual locks. Learn how Swift actors use actor isolation and Sendable checks to provide compile-time thread safety for shared mutable state.
Learn how a @Validated property wrapper can centralize email and string checks, cut repetitive code, and what trade‑offs to expect.
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