| /* |
| * 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 a compile-time error to read a field or tear |
| * off a method from an expression whose type is potentially nullable and not |
| * dynamic |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| |
| main() { |
| String? s = "Lily was"; |
| int? i = 1; |
| double? d = 3.14; |
| |
| (s + " here").substring(0); //# 01: compile-time error |
| (s + " here").length; //# 02: compile-time error |
| (i + i).isEven; //# 03: compile-time error |
| (d + i).abs(); //# 04: compile-time error |
| } |
