| /* |
| * 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 An expression of the form [e as T] is accepted as a potentially |
| * and compile-time constant expression if [e] is potentially constant or |
| * compile-time constant, respectively, and [T] is a compile-time constant type. |
| * A compile-time constant type means any type that doesn't contain free type |
| * variables, so the type expression always resolves to the exact same type. |
| * @description Checks that an expression of the form [e as T] is not accepted |
| * and causes compile time error if [T] is not a compile-time constant type. |
| * @author iarkh@unipro.ru |
| */ |
| |
| const x = null; |
| |
| class A<T> { |
| static const xxx = x as T?; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| const int i = 0; |
| |
| main() { |
| const x1 = x as i; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| const x2 = x as i?; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
