| library; |
| // |
| // Problems in library: |
| // |
| // pkg/front_end/testcases/general/extension_types_feature_not_enabled.dart:9:16: Error: An extension type declaration must have a primary constructor declaration. |
| // Try adding a primary constructor to the extension type declaration. |
| // extension type E on A {} // Error because of 'type'. |
| // ^ |
| // |
| // pkg/front_end/testcases/general/extension_types_feature_not_enabled.dart:9:18: Error: Expected 'extends' instead of this. |
| // extension type E on A {} // Error because of 'type'. |
| // ^^ |
| // |
| // pkg/front_end/testcases/general/extension_types_feature_not_enabled.dart:9:18: Error: An extension type declaration can't have an 'extends' clause. |
| // Try removing the 'extends' clause or replacing the 'extends' with 'implements'. |
| // extension type E on A {} // Error because of 'type'. |
| // ^^ |
| // |
| import self as self; |
| import "dart:core" as core; |
| |
| class A extends core::Object { |
| synthetic constructor •() → self::A |
| : super core::Object::•() |
| ; |
| } |
| extension type E(invalid-type #) { |
| } |
| static method main() → dynamic {} |