2018-06-12 08:00:09 +00:00
|
|
|
// 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.
|
|
|
|
|
2020-03-21 16:12:36 +00:00
|
|
|
// @dart = 2.7
|
|
|
|
|
2018-06-12 08:00:09 +00:00
|
|
|
// dart2jsOptions=--strong
|
|
|
|
|
|
|
|
import 'package:expect/expect.dart';
|
|
|
|
|
|
|
|
bool f<T, S>(T a, S b) => a is S;
|
|
|
|
|
|
|
|
typedef bool F<P, Q>(P a, Q b);
|
|
|
|
|
|
|
|
class B<X, Y> {
|
|
|
|
F<X, Y> c;
|
|
|
|
|
|
|
|
B() : c = f;
|
|
|
|
}
|
|
|
|
|
|
|
|
main() {
|
|
|
|
Expect.isTrue(new B<int, int>().c(0, 0));
|
|
|
|
Expect.isFalse(new B<int, String>().c(0, ''));
|
|
|
|
}
|