Swift在嵌入式设备上发展如何
Asked on 06/18/2025
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在WWDC 2024中，Apple介绍了嵌入式Swift的发展。嵌入式Swift是一种专门为受限的嵌入式设备设计的编译模式，适用于编写固件和操作系统内核等最受限的环境。嵌入式Swift是Swift的一个子集，支持核心Swift特性，如值和引用类型、闭包、可选项、错误处理、泛型等。
嵌入式Swift的一个重要应用是在Apple设备的安全隔离处理器（Secure Enclave Processor）上，利用Swift的内存安全特性来提高平台的安全性。此外，嵌入式Swift还被用于iOS 26中管理CPU和GPU之间共享内存页面的协处理器上。
对于开发者，Apple提供了嵌入式Swift用户手册和一系列示例项目，这些项目展示了如何在ARM或RISC V微控制器上使用嵌入式Swift。这些示例项目可以在GitHub上的Swift Embedded Examples库中找到。
如果你对嵌入式Swift感兴趣，可以观看Go small with Embedded Swift和What’s new in Swift以获取更多信息。
Go small with Embedded Swift
Embedded Swift brings the safety and expressivity of Swift to constrained environments. Explore how Embedded Swift runs on a variety of microcontrollers through a demonstration using an off-the-shelf Matter device. Learn how the Embedded Swift subset packs the benefits of Swift into a tiny footprint with no runtime, and discover plenty of resources to start your own Embedded Swift adventure.
What’s new in Swift
Join us for an update on Swift. We’ll talk about workflow improvements that make you more productive, and new and modernized library APIs for fundamental programming tasks. We’ll show examples of Swift adoption throughout more layers of the software stack. Finally, we’ll explore new language features for both improving approachability of concurrency, and achieving peak performance when you need it.
What’s new in Swift
Join us for an update on Swift. We’ll briefly go through a history of Swift over the past decade, and show you how the community has grown through workgroups, expanded the package ecosystem, and increased platform support. We’ll introduce you to a new language mode that achieves data-race safety by default, and a language subset that lets you run Swift on highly constrained systems. We’ll also explore some language updates including noncopyable types, typed throws, and improved C++ interoperability.