From 20431706a863f92cb37dc512fef6e48d192aaf2c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:11:38 +0200
Subject: Merging upstream version 1.66.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../rustc_infer/src/infer/region_constraints/leak_check.rs     |  2 +-
 compiler/rustc_infer/src/infer/region_constraints/mod.rs       | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

(limited to 'compiler/rustc_infer/src/infer/region_constraints')

diff --git a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
index 397efe6ee..90858e307 100644
--- a/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/leak_check.rs
@@ -66,7 +66,7 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> {
         tcx: TyCtxt<'tcx>,
         overly_polymorphic: bool,
         max_universe: ty::UniverseIndex,
-        snapshot: &CombinedSnapshot<'_, 'tcx>,
+        snapshot: &CombinedSnapshot<'tcx>,
     ) -> RelateResult<'tcx, ()> {
         debug!(
             "leak_check(max_universe={:?}, snapshot.universe={:?}, overly_polymorphic={:?})",
diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
index e43d28ee5..67b3da687 100644
--- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs
+++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs
@@ -12,8 +12,10 @@ use rustc_data_structures::intern::Interned;
 use rustc_data_structures::sync::Lrc;
 use rustc_data_structures::undo_log::UndoLogs;
 use rustc_data_structures::unify as ut;
+use rustc_hir::def_id::DefId;
 use rustc_index::vec::IndexVec;
 use rustc_middle::infer::unify_key::{RegionVidKey, UnifiedRegion};
+use rustc_middle::ty::subst::SubstsRef;
 use rustc_middle::ty::ReStatic;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_middle::ty::{ReLateBound, ReVar};
@@ -168,6 +170,7 @@ pub struct Verify<'tcx> {
 pub enum GenericKind<'tcx> {
     Param(ty::ParamTy),
     Projection(ty::ProjectionTy<'tcx>),
+    Opaque(DefId, SubstsRef<'tcx>),
 }
 
 /// Describes the things that some `GenericKind` value `G` is known to
@@ -747,6 +750,9 @@ impl<'tcx> fmt::Debug for GenericKind<'tcx> {
         match *self {
             GenericKind::Param(ref p) => write!(f, "{:?}", p),
             GenericKind::Projection(ref p) => write!(f, "{:?}", p),
+            GenericKind::Opaque(def_id, substs) => ty::tls::with(|tcx| {
+                write!(f, "{}", tcx.def_path_str_with_substs(def_id, tcx.lift(substs).unwrap()))
+            }),
         }
     }
 }
@@ -756,6 +762,9 @@ impl<'tcx> fmt::Display for GenericKind<'tcx> {
         match *self {
             GenericKind::Param(ref p) => write!(f, "{}", p),
             GenericKind::Projection(ref p) => write!(f, "{}", p),
+            GenericKind::Opaque(def_id, substs) => ty::tls::with(|tcx| {
+                write!(f, "{}", tcx.def_path_str_with_substs(def_id, tcx.lift(substs).unwrap()))
+            }),
         }
     }
 }
@@ -765,6 +774,7 @@ impl<'tcx> GenericKind<'tcx> {
         match *self {
             GenericKind::Param(ref p) => p.to_ty(tcx),
             GenericKind::Projection(ref p) => tcx.mk_projection(p.item_def_id, p.substs),
+            GenericKind::Opaque(def_id, substs) => tcx.mk_opaque(def_id, substs),
         }
     }
 }
-- 
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