Files
sdk/tests/language/is/nan_test.dart
T
Robert Nystrom 359023d699 Migrate language_2/is to NNBD.
Change-Id: I915bc1adde6ef377a5043aab07ba0519cc03164f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149040
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
2020-05-29 19:47:44 +00:00

18 lines
444 B
Dart

// 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.
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;