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// 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 It is a compile-time error if any of the elements being spread in
/// a const set are equal to other elements in the set literal, in the spread, or
/// in other spreads in the same set, as in:
///
/// const list = [1, 2];
/// const set = {1, ...list}; // Error because 1 is duplicated.
///
/// @description Checks that elements cannot be duplicated in the constant set.
/// @author iarkh@unipro.ru
const List list1 = [2, 7, 9];
const List list2 = [2, 12, 33];
const List list3 = [2, 12, 4, 12, 11, 0, 3];
main() {
const res1 = {...list1, ...list2};
// ^
// [cfe] Constant evaluation error:
// ^^^^^
// [analyzer] COMPILE_TIME_ERROR.EQUAL_ELEMENTS_IN_CONST_SET
const res2 = {1, 14, ...?list1, 99, ...list2};
// ^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
const res3 = {...list2, ...list1};
// ^
// [cfe] Constant evaluation error:
// ^^^^^
// [analyzer] COMPILE_TIME_ERROR.EQUAL_ELEMENTS_IN_CONST_SET
const res4 = {...?list3};
// ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
const res5 = {...list3};
// ^
// [cfe] Constant evaluation error:
// ^^^^^
// [analyzer] COMPILE_TIME_ERROR.EQUAL_ELEMENTS_IN_CONST_SET
const res6 = {2, 4, ...?list1, 14};
// ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
const res7 = {...?list2, 12, 33};
// ^^
// [analyzer] unspecified
// [cfe] unspecified
const res8 = {1, 10, ...list1, 6, 9, 2};
// ^
// [analyzer] unspecified
// [cfe] unspecified
const res9 = {1, ...list1, ...list2, ...list3, ...?list4, 18};
// ^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}