dart-sdk/tests/dart2js_2/class_hierarchy_extends_clause_test.dart
Joshua Litt 05ca544f15 [dart2js] Move tests/compiler/dart2js_extra to tests/dart2js_2.
Change-Id: Iaa0ca2b4f2d1b15f79ddca37834d3ed2497bc068
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149242
Commit-Queue: Joshua Litt <joshualitt@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
2020-06-03 15:15:30 +00:00

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Dart

// Copyright (c) 2017, 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.
// @dart = 2.7
import 'package:expect/expect.dart';
class A {}
abstract class B<T> {
final Box<T> x = new Box<T>();
}
class C extends B<A> {}
class Box<T> {
Box();
bool doCheck(Object o) => o is T;
}
main() {
var c = new C();
Expect.isFalse(c.x.doCheck(3));
}