From f193effcaf421da090a463a49968b7bac849db2f Mon Sep 17 00:00:00 2001
From: Kyle Matsuda <kyle.yoshio.matsuda@gmail.com>
Date: Tue, 17 Jan 2023 08:54:07 -0700
Subject: [PATCH] fix missing subst in clippy utils

---
 src/tools/clippy/clippy_utils/src/ty.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs
index 1d2a469ca6ca5..99fba4fe741a1 100644
--- a/src/tools/clippy/clippy_utils/src/ty.rs
+++ b/src/tools/clippy/clippy_utils/src/ty.rs
@@ -647,8 +647,8 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t
             Some(ExprFnSig::Closure(decl, subs.as_closure().sig()))
         },
         ty::FnDef(id, subs) => Some(ExprFnSig::Sig(cx.tcx.bound_fn_sig(id).subst(cx.tcx, subs), Some(id))),
-        ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => {
-            sig_from_bounds(cx, ty, cx.tcx.item_bounds(def_id).subst_identity(), cx.tcx.opt_parent(def_id))
+        ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => {
+            sig_from_bounds(cx, ty, cx.tcx.item_bounds(def_id).subst(cx.tcx, substs), cx.tcx.opt_parent(def_id))
         },
         ty::FnPtr(sig) => Some(ExprFnSig::Sig(sig, None)),
         ty::Dynamic(bounds, _, _) => {