decltype(auto) return value

Author: netcan

include/asyncio/event_loop.h

@@ -55,7 +55,7 @@ class EventLoop: private NonCopyable {
     }
 
     template<concepts::Future Fut>
-    auto run_until_complete(Fut&& future) {
+    decltype(auto) run_until_complete(Fut&& future) {
         call_soon(future.get_resumable());
         run_forever();
         return future.get_result();

include/asyncio/runner.h

@@ -9,8 +9,8 @@
 
 ASYNCIO_NS_BEGIN
 template<concepts::Future Fut>
-auto run(Fut&& main) {
-    decltype(auto) loop = get_event_loop();
+decltype(auto) run(Fut&& main) {
+    auto& loop = get_event_loop();
     return loop.run_until_complete(std::forward<Fut>(main));
 }