| // Copyright (c) 2021, 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. |
| |
| import 'package:analyzer_utilities/check/check.dart'; |
| |
| extension NullabilityExtension<T> on CheckTarget<T?> { |
| void get isNull { |
| if (value != null) { |
| fail('is not null'); |
| } |
| } |
| |
| CheckTarget<T> get isNotNull { |
| final value = this.value; |
| if (value == null) { |
| fail('is null'); |
| } |
| return nest(value, (value) => 'is not null'); |
| } |
| } |