feat: nice msg

malivix · Nov 21, 2023 · 9f0820f · 9f0820f
1 parent d67b0c4
commit 9f0820f
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/frb_dart/lib/src/generalized_frb_rust_binding/_io.dart b/frb_dart/lib/src/generalized_frb_rust_binding/_io.dart
@@ -15,8 +15,7 @@ class GeneralizedFrbRustBinding {
     try {
       _binding.store_dart_post_cobject(ffi.NativeApi.postCObject.cast());
     } on ArgumentError catch (e, s) {
-      print('${e.runtimeType} ${e.name} ${e.message}');
-      TODO;
+      _userFriendlyDynamicLibraryErrorReporting(e, s);
       rethrow;
     }
   }
@@ -36,3 +35,14 @@ class GeneralizedFrbRustBinding {
   /// {@macro flutter_rust_bridge.only_for_generated_code}
   void freeWireSyncReturn(WireSyncReturn val) => _binding.free_wire_sync_return(val);
 }
+
+void _userFriendlyDynamicLibraryErrorReporting(ArgumentError e, StackTrace s) {
+  final message = e.message;
+  if (message is String && message.contains('Failed to lookup symbol')) {
+    throw ArgumentError(
+      '$e\n'
+      'This is often because the Rust library is not loaded correctly.\n'
+      'Original stack trace: $s',
+    );
+  }
+}