::Ref

Author: asukaminato0721

crates/hir-def/src/expr_store/lower.rs

@@ -1001,15 +1001,10 @@ impl<'db> ExprCollector<'db> {
             *param = pat_id;
         }
 
-        let capture_by = match kind {
-            // Async closures use by-ref by default so they don't all collapse to `FnOnce`.
-            CoroutineKind::Async => CaptureBy::Ref,
-            CoroutineKind::Gen | CoroutineKind::AsyncGen => CaptureBy::Value,
-        };
         let coroutine = self.desugared_coroutine_expr(
             kind,
             coroutine_source,
-            capture_by,
+            CaptureBy::Ref,
             None,
             statements.into_boxed_slice(),
             Some(body),