From c6f5c7ba60808bc48f4506acf40c1dabc1d07851 Mon Sep 17 00:00:00 2001
From: Dario Nieuwenhuis <dirbaio@dirbaio.net>
Date: Mon, 21 Feb 2022 23:27:08 +0100
Subject: [PATCH] chalk/lowering: lower generator types.

---
 compiler/rustc_traits/src/chalk/lowering.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_traits/src/chalk/lowering.rs b/compiler/rustc_traits/src/chalk/lowering.rs
index 2cd179526bf..e3c865ce9e6 100644
--- a/compiler/rustc_traits/src/chalk/lowering.rs
+++ b/compiler/rustc_traits/src/chalk/lowering.rs
@@ -323,7 +323,10 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::Ty<RustInterner<'tcx>>> for Ty<'tcx> {
             ty::Closure(def_id, substs) => {
                 chalk_ir::TyKind::Closure(chalk_ir::ClosureId(def_id), substs.lower_into(interner))
             }
-            ty::Generator(_def_id, _substs, _) => unimplemented!(),
+            ty::Generator(def_id, substs, _) => chalk_ir::TyKind::Generator(
+                chalk_ir::GeneratorId(def_id),
+                substs.lower_into(interner),
+            ),
             ty::GeneratorWitness(_) => unimplemented!(),
             ty::Never => chalk_ir::TyKind::Never,
             ty::Tuple(types) => {