| // Copyright (c) 2020, 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 Calling a method (including an operator) or getter on a receiver |
| /// of static type Never is treated by static analysis as producing a result of |
| /// type Never. |
| /// |
| /// @description Checks that calling a method (including an operator) or getter |
| /// on a receiver of static type Never is treated by static analysis as producing |
| /// a result of type Never |
| /// @issue 41273 |
| /// @author sgrekhov@unipro.ru |
| |
| // Requirements=nnbd-weak |
| |
| void test(var x) { |
| if (x is Never) { |
| Never n1 = x.toString(); |
| Never n2 = x.runtimeType; |
| Never n3 = x.someGetter; |
| Never n4 = x.someMethod(); |
| Never n5 = x + x; |
| } |
| } |
| |
| main() { |
| test(null); |
| } |