diff options
Diffstat (limited to 'compiler/rustc_trait_selection/src')
| -rw-r--r-- | compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs index 7fd2a3801cc..f9e164e1f3f 100644 --- a/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/normalizes_to/mod.rs @@ -407,16 +407,20 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { output_coroutine_ty, coroutine_return_ty, }| { - let (projection_term, term) = match tcx.item_name(goal.predicate.def_id()) { - sym::CallOnceFuture => ( + let lang_items = tcx.lang_items(); + let (projection_term, term) = if Some(goal.predicate.def_id()) + == lang_items.call_once_future() + { + ( ty::AliasTerm::new( tcx, goal.predicate.def_id(), [goal.predicate.self_ty(), tupled_inputs_ty], ), output_coroutine_ty.into(), - ), - sym::CallRefFuture => ( + ) + } else if Some(goal.predicate.def_id()) == lang_items.call_ref_future() { + ( ty::AliasTerm::new( tcx, goal.predicate.def_id(), @@ -427,8 +431,9 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { ], ), output_coroutine_ty.into(), - ), - sym::Output => ( + ) + } else if Some(goal.predicate.def_id()) == lang_items.async_fn_once_output() { + ( ty::AliasTerm::new( tcx, goal.predicate.def_id(), @@ -438,8 +443,9 @@ impl<'tcx> assembly::GoalKind<'tcx> for NormalizesTo<'tcx> { ], ), coroutine_return_ty.into(), - ), - name => bug!("no such associated type: {name}"), + ) + } else { + bug!("no such associated type in `AsyncFn*`: {:?}", goal.predicate.def_id()) }; ty::ProjectionPredicate { projection_term, term } }, |