[英]Swift: how to wrap `completion` into an async/await?
I have a callback based API.我有一个基于回调的 API。
func start(_ completion: @escaping () -> Void)
I'd like to write an async/await wrapper on top of that API, deferring the implementation to original callback based API.我想在该 API 之上编写一个 async/await 包装器,将实现推迟到基于原始回调的 API。
func start() async {
let task = Task()
start {
task.fulfill()
}
return await task
}
Obviously, this code doesn't connect - it's not real, there is no method fulfill
on Task
.显然,这段代码没有连接——它不是真实的,
Task
上没有fulfill
方法。
Question: is there a way to use unstructured concurrency in Swift so that it would help me achieve this?问题:有没有办法在 Swift 中使用非结构化并发来帮助我实现这一目标?
You are looking for continuations .您正在寻找延续。
Here is how to use it in your example:以下是如何在您的示例中使用它:
func start() async {
await withCheckedContinuation { continuation in
start(continuation.resume)
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.