unikernel/duniverse/ppxlib/test/location/attributes/pp.ml

@@ -0,0 +1,18 @@
+open Ppxlib
+
+let pp_attr str =
+  let iter =
+    object
+      inherit Ast_traverse.iter as super
+
+      method! attribute v =
+        let loc = loc_of_attribute v in
+        Format.printf "%a %s" Location.print loc v.attr_name.txt;
+        super#attribute v
+    end
+  in
+  iter#structure str;
+  str
+
+let () = Driver.register_transformation ~impl:pp_attr "print-attributes"
+let () = Ppxlib.Driver.standalone ()