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swift-concurrency-6-2

Swift 6.2 易用的并发（Approachable Concurrency）—— 默认单线程，使用 @concurrent 进行显式后台卸载，针对主执行角色（Main Actor）类型的隔离一致性。

skills/swift-concurrency-6-2/SKILL.md

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# Swift 6.2 易用的并发 (Approachable Concurrency)

采用 Swift 6.2 并发模型的模式：代码默认在单线程运行，并发需显式引入。在不牺牲性能的情况下消除常见的数据竞争（Data-race）错误。

## 何时激活

- 将 Swift 5.x 或 6.0/6.1 项目迁移到 Swift 6.2
- 解决数据竞争安全的编译器错误
- 设计基于 `MainActor` 的应用架构
- 将 CPU 密集型工作卸载到后台线程
- 在 `MainActor` 隔离的类型上实现协议一致性（Protocol conformances）
- 在 Xcode 26 中启用易用的并发（Approachable Concurrency）构建设置

## 核心问题：隐式后台卸载