| // 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 time error is thrown if constant set spread |
| /// element is not a potentially constant list or set. |
| /// @compile-error |
| /// @author iarkh@unipro.ru |
| |
| |
| class A { |
| const A(); |
| } |
| |
| class B extends A { |
| const B(); |
| } |
| |
| class MyClass { |
| final String a; |
| const MyClass(Object o) : a = o as String; |
| } |
| |
| |
| main() { |
| const Set l4 = {...(MyClass(12345) is MyClass ? [12] : [])}; |
| } |
