LanguageFeatures/Set-literals/disambiguating_A01_t02.dart

/*
 * Copyright (c) 2018, 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 Let e be a setOrMapLiteral
 * ...
 * If e has typeArguments then:
 *   - If there is exactly one type argument T, then e is a set literal with
 *     static type Set<T>.
 *   - If there are exactly two type arguments K and V, then e is a map literal
 *     with static type Map<K, V>.
 *   - Otherwise (three or more type arguments), report a compile-time error.
 *
 * @description Checks that it is a compile-time error if a setLiteral has a
 * typeArguments with more than one type argument.
 * @author sgrekhov@unipro.ru
 */
Set set1 = {1, 2};
Set set2 = {};

var v1 = <int, String> {1};
// [error line 23, column 0]
// [analyzer] unspecified
// [cfe] unspecified
var v2 = const <String, int> {1, 2};
// [error line 27, column 0]
// [analyzer] unspecified
// [cfe] unspecified
var v3 = <String, int> {'1', '2'};
// [error line 31, column 0]
// [analyzer] unspecified
// [cfe] unspecified
var v4 = const <int?, String?> {'s', null};
// [error line 35, column 0]
// [analyzer] unspecified
// [cfe] unspecified
var v5 = <String, int> {...set1};
//                         ^^^^
// [analyzer] COMPILE_TIME_ERROR.NOT_MAP_SPREAD
// [cfe] Unexpected type 'Set<dynamic>' of a map spread entry.  Expected 'dynamic' or a Map.
var v6 = const <int, String> {...set2};
// [error line 43, column 0]
// [analyzer] unspecified
// [cfe] unspecified

main() {
  var x1 = <int, String> {1};
// [error line 49, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  var x2 = const <String, int> {1, 2};
// [error line 53, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  var x3 = <String, int> {'1', '2'};
// [error line 57, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  var x4 = const <int?, String?> {'s', null};
// [error line 61, column 0]
// [analyzer] unspecified
// [cfe] unspecified
  var x5 = <String, int> {...set1};
  //                         ^^^^
  // [analyzer] COMPILE_TIME_ERROR.NOT_MAP_SPREAD
  // [cfe] Unexpected type 'Set<dynamic>' of a map spread entry.  Expected 'dynamic' or a Map.
  var x6 = const <int, String> {...set2};
// [error line 69, column 0]
// [analyzer] unspecified
// [cfe] unspecified
}