Files
sdk/tests/language/generic_instanceof5_test.dart
T
Bob Nystrom 14011f47e3 Resurrect deleted language tests.
They're back from the grave, and ready to party!

Change-Id: I088134a9be7ecabf1fbf751c015a656a15cabff9
Reviewed-on: https://dart-review.googlesource.com/12821
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: William Hesse <whesse@google.com>
2017-10-11 17:47:11 +00:00

26 lines
636 B
Dart

// Copyright (c) 2014, 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.
// Test that instanceof works correctly with type variables.
import "package:expect/expect.dart";
class A {}
class B<T, S> {}
class C<U, V> extends A with B<V, U> {}
class D<T> {
foo(x) {
// Avoid inlining.
if (new DateTime.now().millisecondsSinceEpoch == 42) foo(x);
return x is T;
return true; // Avoid inlining.
}
}
main() {
Expect.isTrue(new D<B<int, bool>>().foo(new C<bool, int>()));
}