blob: 1ed14775505be3445ba3c9ec2ceb73b0f98099ec [file] [log] [blame]
// Copyright (c) 2020, 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 If an unmigrated library re-exports a migrated library, the
/// re-exported symbols retain their migrated status (that is, downstream
/// migrated libraries will see their migrated types).
/// @description Check that if generic function with nullable type parameter is
/// exported from opted-in library to legacy library and then back to the opted
/// in code, it retains its status and so can accept [Null] as a type parameter.
/// @Issue 40399
/// @author
// Requirements=nnbd-weak
import "dart:async";
import "../../../Utils/expect.dart";
import "exports_A01_opted_out_lib.dart";
main() {
Expect.isTrue(testGenericDynamic is void Function<T extends dynamic>());
Expect.runtimeIsType<void Function<T extends dynamic>()>(testGenericDynamic);
Expect.isTrue(testGenericNullableInt is void Function<T extends int?>());
Expect.runtimeIsType<void Function<T extends int?>()>(testGenericNullableInt);
Expect.isTrue(testGenericNullableFunction is void Function<T extends Function?>());
Expect.runtimeIsType<void Function<T extends Function?>()>(testGenericNullableFunction);
Expect.isTrue(testGenericNullableObject is void Function<T extends Object?>());
Expect.runtimeIsType<void Function<T extends Object?>()>(testGenericNullableObject);
Expect.isTrue(testGenericNull is void Function<T extends Null>());
Expect.runtimeIsType<void Function<T extends Null>()>(testGenericNull);
Expect.isTrue(testGenericFutureOr is void Function<T extends FutureOr>());
Expect.runtimeIsType<void Function<T extends FutureOr>()>(testGenericFutureOr);