Github user apocolipse commented on the issue:
https://github.com/apache/thrift/pull/1084
Update:
I've modified the generated Async clients to use a new `TAsyncResult<T>`
parameter for callbacks rather than Optional Return/Error tuples. Short
version of why is that those parameters are always mutually exclusive, and
there's no really good way to have a non-optional return or throw pattern for
async.
With the `TAsyncResult<T>`, non-optional return values are encapsulated
within a throwing func in the enum, such that you can handle your do/catch
block in a callback. Consider the following example:
```swift
/// normal: public func hello() throws -> String
do {
let world = try hello()
} catch let e { handle(e) }
/// async: public func hello(completion: @escaping (TAsyncResult<String>)
-> Void)
hello() {
do {
let world = try $0.value()
catch let e { handle(e) }
}
```
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
