// 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 (Unified collections) Let [e] be a [setOrMapLiteral].
///
/// If [e] has a context [C], and the base type of [C] is [Cbase] (that is,
/// [Cbase] is [C] with all wrapping [FutureOrs] removed), and [Cbase] is not
/// [?], then let [S] be the greatest closure.
///
/// If [e] has [typeArguments] then:
/// ...
/// If there are exactly two type arguments [K] and [V], then [e] is a map
/// literal with static type [Map<K, V>].
///
/// @description Checks that [setOrMapLiteral] has two type argument, it's a map.
/// @author iarkh@unipro.ru


main() {
  Set aSet = {1, 2, 3};
  List aList = [1, 2, 3];

  var res1 = <int, int>{...aList}; //# 01: compile-time error
  var res2 = <int, int>{...aSet};  //# 02: compile-time error
}
