| // 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. |
| |
| /// @assertion It is not an error to call or tear-off a method, setter, or |
| /// getter, or to read or write a field, on a receiver of static type Never. |
| /// Implementations that provide feedback about dead or unreachable code are |
| /// encouraged to indicate that any arguments to the invocation are unreachable. |
| /// |
| /// @description Check that it is an error to call a method, setter, or getter on |
| /// a receiver of static type Never. Test type aliases |
| /// @author sgrekhov@unipro.ru |
| /// @issue 39866 |
| |
| // Requirements=nnbd-weak |
| typedef Neverland = Never; |
| |
| void test(var x) { |
| if (x is Neverland) { |
| x.toString(); |
| x.runtimeType; |
| x.s = 1; |
| } |
| } |
| |
| main() { |
| test(null); |
| } |