Bubble up error type

2024-11-26 00:34:06 +00:00 · 2024-01-10 10:25:42 +00:00 · 2024-01-10 10:25:42 +00:00 · 252ac15286
commit 252ac15286
parent 3a6bf351a3
1 changed files with 1 additions and 1 deletions
--- a/compiler/rustc_hir_typeck/src/closure.rs
+++ b/compiler/rustc_hir_typeck/src/closure.rs
@ -802,7 +802,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                .explicit_item_bounds(def_id)
                .iter_instantiated_copied(self.tcx, args)
                .find_map(|(p, s)| get_future_output(p.as_predicate(), s))?,
-            ty::Error(_) => return None,
+            ty::Error(_) => return Some(ret_ty),
            _ => span_bug!(
                closure_span,
                "async fn coroutine return type not an inference variable: {ret_ty}"