// 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 It is a compile-time error if:
/// A non-null-aware spread element has static type Null.
/// @description Checks that compile error is thrown if spread element is
/// statically [Null].
/// @description Check that trying to use [null] element as a non-null-aware
/// spread element in constant causes compile error
/// @author iarkh@unipro.ru


main() {
  const res1 = [...null];           //# 01: compile-time error
  const Map res2 = {...null};       //# 02: compile-time error
  const Set res3 = {...null};       //# 03: compile-time error

  const res4 = <int>[...null];      //# 04: compile-time error
  const res5 = <int>{...null};      //# 05: compile-time error
  const res6 = <int, int>{...null}; //# 06: compile-time error
}