| /* |
| * 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. |
| */ |
| /** |
| * @assertion From the Unified collection Spec: |
| * A spreadElement starting with [...] is a constant element if its expression |
| * is constant and it evaluates to a constant List, Set or Map instance |
| * originally created by a list, set or map literal. It is a potentially |
| * constant element if the expression is a potentially constant expression. |
| * @description: Checks that compile error is thrown if constant list spread |
| * element is not potentially constant list or set. |
| * @compile-error |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=constant-update-2018 |
| |
| class MyClass { |
| final String a; |
| const MyClass(Object o) : a = o as String; |
| } |
| |
| main() { |
| const List aList = [...(MyClass(12345) is MyClass ? [12] : [])]; |
| } |
