dart-sdk/tests/language/function_subtype/factory1_test.dart
Robert Nystrom b955271e51 Migrate language_2/function_subtype to NNBD.
Change-Id: I8d41ad649c83cd97253006693a0cf3676de418e9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145542
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
2020-05-05 16:52:30 +00:00

21 lines
614 B
Dart

// Copyright (c) 2013, 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 test program for constructors and initializers.
// Check function subtyping with type variables in factory constructors.
import 'package:expect/expect.dart';
class C<T> {
factory C(void foo(T t)) => new C.internal();
C.internal();
}
void method(String s) {}
void main() {
Expect.isNotNull(new C<String>(method));
Expect.throwsTypeError(() => new C<bool>(method as dynamic));
}