| /* |
| * 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 It is an error to read a field or tear off a method from an |
| * expression whose type is potentially nullable and not dynamic, except for the |
| * methods and fields on Object. |
| * |
| * @description Check that it is no compile-time error to read a field or tear |
| * off a method from an expression whose type is potentially nullable if they |
| * are methods, setters, getters, and operators on Object. Test that methods |
| * of Object are allowed for the classes Null*`, `dynamic*`, `S?*`, |
| * `FutureOr<Null*>`, `FutureOr<dynamic*>`, `FutureOr<FutureOr<S*>>` |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // Requirements=nnbd-strong |
| import "../../Utils/expect.dart"; |
| import "legacy_lib.dart"; |
| |
| main() { |
| var x1 = getLegacyNull(); |
| Expect.isNotNull(x1.toString); |
| |
| var x2 = legacyDynamic; |
| Expect.isNotNull(x2.toString); |
| |
| var x3 = aLegacy; |
| Expect.isNotNull(x3.toString); |
| |
| var x4 = futureOrNull; |
| Expect.isNotNull(x4.toString); |
| |
| var x5 = futureOrDynamic; |
| Expect.isNotNull(x5.toString); |
| |
| var x6 = futureOrfutureOrS; |
| Expect.isNotNull(x6.toString); |
| } |