dart-sdk/tests/language/vm/regress_b80154489_test.dart
Robert Nystrom 2034061433 Migrate language_2/vm to NNBD.
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
2020-06-25 20:39:23 +00:00

31 lines
678 B
Dart

// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Check that class finalizer correctly marks supertypes of superinterfaces
// as implemented.
import 'package:expect/expect.dart';
abstract class A {
String method();
}
abstract class B extends A {}
class D extends A {
String method() => "D";
}
class C implements B {
String method() => "C";
}
String invoke(A a) {
return a.method();
}
void main(List<String> args) {
Expect.equals("C", invoke(args.contains('--use-d') ? new D() : new C()));
}