| Index: sdk/lib/_internal/compiler/js_lib/isolate_serialization.dart
|
| diff --git a/sdk/lib/_internal/compiler/js_lib/isolate_serialization.dart b/sdk/lib/_internal/compiler/js_lib/isolate_serialization.dart
|
| index 51a294393e9052a81f83a4559e0b0bff86493249..9230bba9ff3e37e81bdacb6fde5929e2ab03e1d7 100644
|
| --- a/sdk/lib/_internal/compiler/js_lib/isolate_serialization.dart
|
| +++ b/sdk/lib/_internal/compiler/js_lib/isolate_serialization.dart
|
| @@ -165,6 +165,7 @@ class _Serializer {
|
| }
|
|
|
| serializeDartObject(x) {
|
| + if (!isDartObject(x)) unsupported(x);
|
| var classExtractor = JS_EMBEDDED_GLOBAL('', CLASS_ID_EXTRACTOR);
|
| var fieldsExtractor = JS_EMBEDDED_GLOBAL('', CLASS_FIELDS_EXTRACTOR);
|
| String classId = JS('String', '#(#)', classExtractor, x);
|
|
|