LanguageFeatures/nnbd/weak/exports_A01_functions_t10.dart

// 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 function which returns non-nullable is exported
/// from opted-in library to legacy library and then back to the opted in code,
/// it retains its status.
/// @author iarkh@unipro.ru

// Requirements=nnbd-weak

import "dart:async";
import "../../../Utils/expect.dart";
import "exports_A01_opted_out_lib.dart";

main() {
  Expect.isTrue(getInt is int Function());
  Expect.runtimeIsType<int Function()>(getInt);
  Expect.equals(1, getInt());

  Expect.isTrue(getObject is Object Function());
  Expect.runtimeIsType<Object Function()>(getObject);
  Expect.equals(1, getObject());

  Expect.isTrue(getFunction is Function Function());
  Expect.runtimeIsType<Function Function()>(getFunction);
  Expect.equals(testme, getFunction());

  Expect.isTrue(getFutureOrInt is FutureOr<int> Function());
  Expect.runtimeIsType<FutureOr<int> Function()>(getFutureOrInt);
  Expect.equals(1, getFutureOrInt());
}