blob: 79bd7eedaefacb143d78d48a91bc10e3b7b8e8d1 [file] [log] [blame]
// Copyright (c) 2019, 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.
/// @assertion The default bound of generic type parameters is treated as
/// [Object?].
/// @description It seems like it is not possible to obtain the value of the
/// default bound at runtime, we can only obtain the result of instantiation to
/// bound. So the test checks that if type parameter of the generic function
/// alias is not clearly specified, it is treated as [dynamic] at runtime.
/// See also co19 issue #530.
/// @Issue 40367, 40368
/// @author
// Requirements=nnbd-strong
import "../../Utils/expect.dart";
typedef T Function1<T>();
typedef void Function2<T>(T);
typedef T Function3<T>(T);
typedef void Function4<T>();
typedef T1 Function5<T1, T2, T3>(T2, T3);
void main() {
Expect.equals(typeOf<Function1<dynamic>>(), typeOf<Function1>());
Expect.equals(typeOf<Function2<dynamic>>(), typeOf<Function2>());
Expect.equals(typeOf<Function3<dynamic>>(), typeOf<Function3>());
Expect.equals(typeOf<Function4<dynamic>>(), typeOf<Function4>());
typeOf<Function5<dynamic, dynamic, dynamic>>(), typeOf<Function5>());