| // Copyright (c) 2012, 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 |
| |
| // Issue 3741: generic type tests and casts fail in assertion statements |
| // when run in production mode. |
| // |
| // The cause was incomplete generic type skipping, so each of the assert |
| // statements below would fail. |
| // |
| // VMOptions= |
| // VMOptions=--enable_asserts |
| |
| main() { |
| var names = new List<int>(); |
| |
| // Generic type test. |
| assert(names is List<int>); |
| |
| // Negated generic type test. |
| assert(names is! List<String>); |
| |
| // Generic type cast. |
| assert((names as List<num>).length == 0); |
| |
| // Generic type test inside expression. |
| assert((names is List<int>)); |
| } |