| // 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 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 constant set spread element cannot be non-constant, |
| /// cannot be [null] and cannot be of the type which is not [List] or [Set] |
| /// @author iarkh@unipro.ru |
| |
| |
| List l = []; |
| Set s = {11}; |
| |
| const m1 = {1: 1}; |
| Map m2 = {2: 2}; |
| |
| const int i1 = 25; |
| int i2 = 25; |
| |
| const n = null; |
| |
| main() { |
| const Set res1 = const {...l}; //# 01: compile-time error |
| const Set res2 = const {...s}; //# 02: compile-time error |
| const Set res3 = const {...m1}; //# 03: compile-time error |
| const Set res4 = const {...m2}; //# 04: compile-time error |
| const Set res5 = const {...i1}; //# 05: compile-time error |
| const Set res6 = const {...i2}; //# 06: compile-time error |
| const Set res7 = const {...n}; //# 07: compile-time error |
| } |