Checkpoint

src/syntax/location.rs

@@ -85,9 +85,9 @@ impl Location {
     /// the user with some guidance. That being said, you still might want to add
     /// even more information to ut, using [`Diagnostic::with_labels`],
     /// [`Diagnostic::with_notes`], or [`Diagnostic::with_code`].
-    pub fn labelled_error(&self, msg: &str) -> Diagnostic<usize> {
+    pub fn labelled_error<T: AsRef<str>>(&self, msg: T) -> Diagnostic<usize> {
         Diagnostic::error().with_labels(vec![
-            Label::primary(self.file_idx, self.location.clone()).with_message(msg)
+            Label::primary(self.file_idx, self.location.clone()).with_message(msg.as_ref())
         ])
     }