// Copyright (c) 2012, 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 = 2.9 | |
import "package:expect/expect.dart"; | |
class A { | |
bool get isNaN => false; | |
} | |
main() { | |
Expect.isTrue(foo(double.nan)); | |
Expect.isFalse(foo(new A())); | |
Expect.throwsNoSuchMethodError(() => foo('bar')); | |
} | |
foo(a) => a.isNaN; |