// 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.

// @dart = 2.9

/// @assertion To infer the type of element:
/// ...
/// If element is a spreadElement with expression e1:
/// ...
/// If P is Set<Ps> then let S be the inferred type of e1 in context Iterable<Ps>:
/// ...
/// If S is dynamic, then the inferred set element type of element is dynamic.
///
/// @description Checks that if S is dynamic, then the inferred set element type
/// of element is dynamic.
/// @author sgrekhov@unipro.ru

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

test(x) {
  Set<int> s = {...x};
  Expect.isTrue(s is Set<int>);
}

main() {
  dynamic d = [1, 2, 3, 4];
  test(d);
}