// 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 The flatten function is modified as follows:
///
/// [flatten(T)] is defined by cases on [T]:
///
///   if [T] is [S?] then [flatten(T) = flatten(S)?]
///   otherwise if [T] is [S*] then [flatten(T) = flatten(S)*]
///   otherwise if [T] is [FutureOr<S>] then [flatten(T) = S]
///   otherwise [if T <: Future] then let [S] be a type such that [T <:
///       Future<S>] and for all [R], if [T <: Future<R>] then [S <: R]; then
///       [flatten(T) = S]
///   otherwise [flatten(T) = T]
///
/// @description Check that type of await expression match with expected
/// non-nullable [FutureOr] and the expression can be non-null.
///
/// Issue 41437
/// @author iarkh@unipro.ru

// Requirements=nnbd-strong

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

Future<FutureOr<bool>> test() async {
  FutureOr<bool> b = await true;
  FutureOr<int> i = await 1;
  FutureOr<String> s = await 'hello';
  FutureOr<Object> o = await new Object();
  return b;
}

main() {
  asyncStart();
  test().then((value) => asyncEnd());
}
