From 14e59bb317c3c901bce83deb16ee9bfa5cc90e28 Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Thu, 7 Sep 2023 06:27:10 +0000
Subject: [PATCH] Lint node for PRIVATE_BOUNDS is the item which has the bounds

---
 compiler/rustc_privacy/src/lib.rs                  | 7 ++++---
 tests/ui/privacy/private-bounds-locally-allowed.rs | 7 +++++++
 2 files changed, 11 insertions(+), 3 deletions(-)
 create mode 100644 tests/ui/privacy/private-bounds-locally-allowed.rs

diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs
index 906a36cdb25..aedc7b22725 100644
--- a/compiler/rustc_privacy/src/lib.rs
+++ b/compiler/rustc_privacy/src/lib.rs
@@ -1463,14 +1463,15 @@ impl SearchInterfaceForPrivateItemsVisitor<'_> {
         };
 
         let vis = self.tcx.local_visibility(local_def_id);
-        let hir_id = self.tcx.hir().local_def_id_to_hir_id(local_def_id);
         let span = self.tcx.def_span(self.item_def_id.to_def_id());
         let vis_span = self.tcx.def_span(def_id);
         if self.in_assoc_ty && !vis.is_at_least(self.required_visibility, self.tcx) {
             let vis_descr = match vis {
                 ty::Visibility::Public => "public",
                 ty::Visibility::Restricted(vis_def_id) => {
-                    if vis_def_id == self.tcx.parent_module(hir_id).to_local_def_id() {
+                    if vis_def_id
+                        == self.tcx.parent_module_from_def_id(local_def_id).to_local_def_id()
+                    {
                         "private"
                     } else if vis_def_id.is_top_level_module() {
                         "crate-private"
@@ -1504,7 +1505,7 @@ impl SearchInterfaceForPrivateItemsVisitor<'_> {
             };
             self.tcx.emit_spanned_lint(
                 lint,
-                hir_id,
+                self.tcx.hir().local_def_id_to_hir_id(self.item_def_id),
                 span,
                 PrivateInterfacesOrBoundsLint {
                     item_span: span,
diff --git a/tests/ui/privacy/private-bounds-locally-allowed.rs b/tests/ui/privacy/private-bounds-locally-allowed.rs
new file mode 100644
index 00000000000..96a007a64f6
--- /dev/null
+++ b/tests/ui/privacy/private-bounds-locally-allowed.rs
@@ -0,0 +1,7 @@
+// check-pass
+// compile-flags: --crate-type=lib
+
+#[allow(private_bounds)]
+pub trait Foo: FooImpl {}
+
+trait FooImpl {}