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How to use @MainActor to run code on the main queue 如何使用 @MainActor 在主队列上运行代码
@MainActor is a global actor that uses the main queue for executing its work. In practice, this means methods or types marked with @MainActor can (for the most part)...
Who decides which actor code runs on? 谁决定在哪个 actor 代码上运行？
One common confusion with actors comes in deciding exactly where code runs, because just adding @MainActor and hoping for the best is rarely good enough.与 Actor 的一个常...
Understanding how global actor inference works 了解全局参与者推理的工作原理
Apple explicitly annotates many of its types as being @MainActor, including most UIKit types such as UIView and UIButton. However, for a while the Swift team da...
What is actor hopping and how can it cause problems? 什么是 actor 跳转，它如何导致问题？
When a thread pauses work on one actor to start work on another actor instead, we call it actor hopping, and it will happen any time one actor calls another.当线程暂停对一个 a...
What is actor reentrancy and how can it cause problems? 什么是 actor 重入性，它如何导致问题？
Actor-isolated functions are reentrant, which means it's possible for one piece of work to begin before a previous piece of work completes. This opens the possibility of subtle bug...
What’s the difference between actors, classes, and structs? Actors、Classes和 Structs 之间有什么区别？
Swift provides four concrete nominal types for defining custom objects: actors, classes, structs, and enums. Each of these works a little differently from the others, but the first...
Important: Do not use an actor for your SwiftUI data models 重要提示：请勿将角色用于 SwiftUI 数据模型
Swift’s actors allow us to share data in multiple parts of our app without causing problems with concurrency, because they automatically ensure two pieces of code cannot...
Introduction to testing Swift concurrency Swift 并发测试简介
Swift's full range of concurrency features work great with unit tests using both the legacy XCTest framework and the new Swift Testing framework.Swift 的全套并发功能非常适合使用旧...
How to write basic async tests 如何编写基本的异步测试
Both Swift Testing and XCTest allow us to test asynchronous code built with Swift concurrency by marking tests as async. This means we can wait for concurrent code to complete...
How to handle concurrency errors in unit tests 如何处理单元测试中的并发错误
Both Swift Testing and XCTest give us three main options for handling errors in tests: we can consider them immediate failures, we can handle them internally and make our own asser...
