1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs
index dd7682ebace..e933fe1cb24 100644
--- a/compiler/rustc_session/src/parse.rs
+++ b/compiler/rustc_session/src/parse.rs
@@ -303,4 +303,8 @@ impl ParseSess {
     ) -> DiagnosticBuilder<'_, ErrorGuaranteed> {
         self.span_diagnostic.struct_err(msg)
     }
+
+    pub fn struct_warn(&self, msg: impl Into<DiagnosticMessage>) -> DiagnosticBuilder<'_, ()> {
+        self.span_diagnostic.struct_warn(msg)
+    }
 }