Alamofire无法在当前上下文中推断闭包类型

Question

I'm creating the extension for DataRequest to log events

func log() -> Self {
        let responseSerializer = DataRequest.jsonResponseSerializer(options: .allowFragments)
        return response(queue: nil, responseSerializer: responseSerializer) { response in
            if let object = response.result.value {
                /* do the job */
            }
        }
}

and got the error Unable to infer closure type in the current context Since it has (DataResponse<T.SerializedObject>) -> Void generic type, is there a way to explicitly set the type to fix this error?

Alamofire version: 4.7.2 Xcode version: 9.3 Swift version: 4.0 Platform(s) running Alamofire: iOS

Answer 1

func log() -> Self {
        let responseSerializer = DataRequest.jsonResponseSerializer()
        return response(responseSerializer: responseSerializer) { [weak self] response in
            guard let _self = self else { return }
            _self.printRequestString(response)
        }
    }

Works well.