| // 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 [null] or 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 potentially constant |
| /// expression. |
| /// @description: Checks that constant map spread [...?] element can only be |
| /// constant map or null |
| /// @author iarkh@unipro.ru |
| |
| |
| const l1 = []; |
| List l2 = []; |
| |
| const s1 = {11}; |
| Set s2 = {}; |
| |
| Map m = {2: 2}; |
| |
| const int i1 = 25; |
| int i2 = 25; |
| |
| main() { |
| const Map res1= const {...?l1}; //# 01: compile-time error |
| const Map res2 = const {...?l2}; //# 02: compile-time error |
| const Map res3 = const {...?s1}; //# 03: compile-time error |
| const Map res4 = const {...?s2}; //# 04: compile-time error |
| const Map res5 = const {...?m}; //# 05: compile-time error |
| const Map res6 = const {...?i1}; //# 06: compile-time error |
| const Map res7 = const {...?i2}; //# 07: compile-time error |
| } |
