| // 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 some disambiguilty cases for sets and maps. |
| /// @author iarkh@unipro.ru |
| |
| |
| const l1 = []; |
| List l2 = []; |
| |
| const s1 = {11}; |
| Set s2 = {}; |
| |
| const m1 = {1: 1}; |
| Map m2 = {2: 2}; |
| |
| const int i1 = 25; |
| int i2 = 25; |
| |
| const n = null; |
| |
| main() { |
| const res1 = {...l2}; |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| const res2 = {...s2}; |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| const res3 = {...l1, 123: 2}; |
| // ^^^^^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_BOTH |
| // [cfe] Both Iterable and Map spread elements encountered in ambiguous literal. |
| const res4 = {14: 3, ...s1}; |
| // ^^^^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_BOTH |
| // [cfe] Both Iterable and Map spread elements encountered in ambiguous literal. |
| const res5 = {...m1, 13}; |
| // ^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_BOTH |
| // ^ |
| // [cfe] Unexpected type 'Map<int, int>' of a spread. Expected 'dynamic' or an Iterable. |
| const res6 = {...m2}; |
| // ^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| const res7 = {...i1}; |
| // ^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| const res8 = {...i2}; |
| // ^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| const res9 = {...n}; |
| // ^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_EITHER |
| // [cfe] Not enough type information to disambiguate between literal set and literal map. |
| const res10 = {...null}; |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |