v0.8.2

build.rs

@@ -41,6 +41,14 @@ fn main() {
             .unwrap_or_else(|error| panic!("cannot read {}: {error}", path.display()));
         let document: Value = serde_json::from_str(&source)
             .unwrap_or_else(|error| panic!("{filename}: invalid JSON: {error}"));
+        let root_object = document.as_object().unwrap_or_else(|| panic!("{filename}: language pack root must be an object"));
+        let unexpected: Vec<&str> = root_object.keys()
+            .filter(|key| key.as_str() != "meta" && key.as_str() != "translations")
+            .map(|key| key.as_str())
+            .collect();
+        if !unexpected.is_empty() {
+            panic!("{filename}: unexpected top-level keys {:?}; translation keys must be inside 'translations'", unexpected);
+        }
         let meta = document.get("meta").unwrap_or_else(|| panic!("{filename}: missing meta object"));
         let code = required_string(meta, "code", filename);
         let name = required_string(meta, "name", filename);