feat(types): hide empty _unknown_fields (#2744)

whuffman36 · web-flow · commit 38fab3a50dc9 · 2025-07-22T15:09:02.000-07:00
* feat(types): hide empty _unknown_fields

* fix style
diff --git a/internal/rust/templates/common/message.mustache b/internal/rust/templates/common/message.mustache
@@ -19,7 +19,7 @@ limitations under the License.
 {{{.}}}
 {{/Codec.DocLines}}
 {{> /templates/common/feature_gate}}
-#[derive(Clone, Debug, Default, PartialEq)]
+#[derive(Clone, Default, PartialEq)]
 #[non_exhaustive]
 {{#Deprecated}}
 #[deprecated]
@@ -338,6 +338,24 @@ impl serde::ser::Serialize for {{Codec.Name}} {
         state.end()
     }
 }
+
+{{> /templates/common/feature_gate}}
+impl std::fmt::Debug for {{Codec.Name}} {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let mut debug_struct = f.debug_struct("{{Codec.Name}}");
+        {{#Codec.BasicFields}}
+            debug_struct.field("{{Codec.FieldName}}", &self.{{Codec.FieldName}});
+        {{/Codec.BasicFields}}
+        {{#OneOfs}}
+            debug_struct.field("{{Codec.FieldName}}", &self.{{Codec.FieldName}});
+        {{/OneOfs}}
+
+        if !self._unknown_fields.is_empty() {
+            debug_struct.field("_unknown_fields", &self._unknown_fields);
+        }
+        debug_struct.finish()
+    }
+}
 {{#Codec.HasNestedTypes}}
 
 /// Defines additional types related to [{{Name}}].
