LanguageFeatures/Set-literals/type_inference_A21_t02.dart

// 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 Finally, we define inference on a setOrMapLiteral collection as
/// follows:
///
/// If collection is unambiguously a set literal:
/// ...
/// Otherwise, the static type of collection is P.
///
/// @description Checks that if collection is unambiguously a set literal and P
/// is not ? then the static type of collection is P
/// @author sgrekhov@unipro.ru

import "../../Utils/expect.dart";

main() {
  var v = {1, 2, 3};
  Expect.isTrue(v is Set<int>);
}