| /* |
| * 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 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 no typeArguments, no useful context type, and no elements, then e is |
| * treated as a map literal with unknown static type. In other words, an |
| * empty {} is a map unless we have a context that indicates otherwise |
| * |
| * @description Checks that an empty {} is a map unless we have a context that |
| * indicates otherwise |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=constant-update-2018 |
| import "../../Utils/expect.dart"; |
| |
| main() { |
| var x = {}; |
| Expect.isTrue(x is Map); |
| Expect.isTrue({} is Map<dynamic, dynamic>); |
| } |
