将 Objective-C 转换为 Swift 再到模拟 S3

Question

我想模拟 S3，但我似乎无法想出以下内容的 Swift 等价物：

- (void)listObjects:(AWSS3ListObjectsRequest *)request completionHandler:(void (^ _Nullable)(AWSS3ListObjectsOutput * _Nullable response, NSError * _Nullable error))completionHandler;

我已经尝试了很多替代方案：

//    func listObjects(request: AWSS3ListObjectsRequest) -> AWSTask<AWSS3ListObjectsOutput>
//    func listObjects(request: AWSS3ListObjectsRequest, completionHandler: (AWSTask<AWSS3ListObjectsOutput>) -> AnyObject?)
func listObjects(request: AWSS3ListObjectsRequest, completionHandler: () -> AWSTask<AWSS3ListObjectsOutput>)
//    - (void)listObjects:(AWSS3ListObjectsRequest *)request completionHandler:(void (^ _Nullable)(AWSS3ListObjectsOutput * _Nullable response, NSError * _Nullable error))completionHandler;

但是我似乎无法获得AWSS3符合的。我需要这样做来模拟 Swift 中的函数。

Answer 1

func listObjects(request: AWSS3ListObjectsRequest, completionHandler: ((AWSS3ListObjectsOutput?, Error?) -> Void)?) {
}