1 files changed, 21 insertions, 0 deletions
diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs
index b26d04d0618..6df3a11deb0 100644
--- a/compiler/rustc_lint/src/lints.rs
+++ b/compiler/rustc_lint/src/lints.rs
@@ -2890,3 +2890,24 @@ pub struct RedundantImportVisibility {
     pub import_vis: String,
     pub max_vis: String,
 }
+
+#[derive(LintDiagnostic)]
+#[diag(lint_unsafe_attr_outside_unsafe)]
+pub struct UnsafeAttrOutsideUnsafe {
+    #[label]
+    pub span: Span,
+    #[subdiagnostic]
+    pub suggestion: UnsafeAttrOutsideUnsafeSuggestion,
+}
+
+#[derive(Subdiagnostic)]
+#[multipart_suggestion(
+    lint_unsafe_attr_outside_unsafe_suggestion,
+    applicability = "machine-applicable"
+)]
+pub struct UnsafeAttrOutsideUnsafeSuggestion {
+    #[suggestion_part(code = "unsafe(")]
+    pub left: Span,
+    #[suggestion_part(code = ")")]
+    pub right: Span,
+}