dart-sdk/tests/language/function_subtype/closure0_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

28 lines
608 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 of static functions.
import 'package:expect/expect.dart';
typedef I<T> f2<T>();
class X {
static J<bool> f1() => throw 'uncalled';
}
class C<T> {
C(f2<T> f);
}
class I<T> {}
class J<T> extends I<int> {}
main() {
new C<int>(X.f1);
Expect.throwsTypeError(() => new C<bool>(X.f1 as dynamic));
}