1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
index 96c7ba6ed27..5a5563c7bb2 100644
--- a/compiler/rustc_errors/src/diagnostic.rs
+++ b/compiler/rustc_errors/src/diagnostic.rs
@@ -1382,6 +1382,11 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
         &mut self.long_ty_path
     }
 
+    pub fn with_long_ty_path(mut self, long_ty_path: Option<PathBuf>) -> Self {
+        self.long_ty_path = long_ty_path;
+        self
+    }
+
     /// Most `emit_producing_guarantee` functions use this as a starting point.
     fn emit_producing_nothing(mut self) {
         let diag = self.take_diag();