/*
 * 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 To infer the type of element:
 * ...
 * If element is a spreadElement with expression e1:
 *
 * If P is ? then let S be the inferred type of e1 in context ?:
 * ...
 * If none of these cases match, it is an error.
 *
 * @description Checks that it is a compile error if none of the cases
 * (`Iterable<Object>` nor of `Map<Object, Object>`, and it's also not `dynamic`
 * nor `Null`) match
 * @author sgrekhov@unipro.ru
 */

void test<T>(T t) {
  var s1 = {...t };
// [error line 22, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  var s2 = {...?t};
// [error line 26, column 0]
// [analyzer] unspecified
// [cfe] unspecified

  var s3 = {...(t as dynamic) };
  //       ^^^^^^^^^^^^^^^^^^^^
  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_EITHER
  // [cfe] Not enough type information to disambiguate between literal set and literal map.
  var s4 = {...?(t as dynamic)};
  //       ^^^^^^^^^^^^^^^^^^^^
  // [analyzer] COMPILE_TIME_ERROR.AMBIGUOUS_SET_OR_MAP_LITERAL_EITHER
  // [cfe] Not enough type information to disambiguate between literal set and literal map.
}

main() {
  test([1, 2, 3]);
  test({1: "1", 2: "2"});
}