================
@@ -139,3 +139,22 @@ template<> class coroutine_traits<Task, int> {
} // namespace std
// expected-error@+1 {{neither a coroutine nor a coroutine wrapper}}
Task foo(int) { return Task{}; }
+
+// Testing that we can add a `[[clang::coro_wrapper]]` attribute to the class.
+class [[clang::coro_return_type]] [[clang::coro_wrapper]] WrappedTask{
+public:
+ struct promise_type {
+ Task get_return_object() {
+ return {};
+ }
+ suspend_always initial_suspend();
+ suspend_always final_suspend() noexcept;
+ void unhandled_exception();
+ };
+};
+namespace std {
+template<> class coroutine_traits<WrappedTask, int> {
+ using promise_type = WrappedTask::promise_type;
+};
+} // namespace std
+WrappedTask wrapped_class(int) { return WrappedTask{}; }
----------------
usx95 wrote:
How does this work atm ? I expect some changes to `Sema::CheckCoroutineWrapper`
without which this should still be an error.
https://github.com/llvm/llvm-project/pull/93268
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