LanguageFeatures/Spread-collections/StaticSemantic_A10_t03.dart

// 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 spread element in a list or set literal has a static type that is not
/// dynamic and not a subtype of Iterable<Object>.
/// @description Checks that compile error is thrown if null-aware spread element
/// in the list is not dynamic and is not assignable to [Iterable] or [Null]
/// @author iarkh@unipro.ru


import "dart:async";

main() {
  Object x1;
  Map x2;
  int x3;
  void x4;
  Future x5;
  FutureOr x6;

  List l1 = [...?x1]; //# 01: compile-time error
  List l2 = [...?x2]; //# 02: compile-time error
  List l3 = [...?x3]; //# 03: compile-time error
  List l4 = [...?x4]; //# 04: compile-time error
  List l5 = [...?x5]; //# 05: compile-time error
  List l6 = [...?x6]; //# 06: compile-time error
}