What is swift strict concurrency?
Generated on 9/6/2024
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Swift strict concurrency is a feature introduced in Swift 6 that aims to improve data race safety by turning potential data race issues into compile-time errors. This means that any concurrency-related issues in your code are caught by the compiler, preventing them from causing unexpected runtime behavior, program crashes, or hard-to-reproduce issues.
Swift concurrency was designed with mechanisms like data isolation, actors for protecting mutable state, and the Sendable protocol for safe data sharing. With Swift 6, data race safety is achieved by default, which significantly enhances the security and reliability of your applications. This new language mode is opt-in, allowing developers to adopt it when ready and on a per-module basis.
For more details, you can refer to the session What’s new in Swift (26:11) where Swift 6 language mode and data-race safety are discussed.
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