| // 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. |
| // @dart = 2.9 |
| // Requirements=nnbd-weak |
| |
| |
| // Test that a generic type alias `T` denoting `Null` |
| // can give rise to the expected errors. |
| |
| import 'dart:async'; |
| import 'generic_usage_null_error_lib.dart'; |
| |
| // Use the aliased type. |
| |
| abstract class C { |
| final T<Null> v7; |
| |
| C(): v7 = T(); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
| |
| class D1<X> extends T<X> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| abstract class D2 extends C with T<int> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| abstract class D3<X, Y> implements T<T> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| abstract class D4 = C with T<void>; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| X foo<X>(X x) => x; |
| |
| main() { |
| var v9 = <Set<T<T>>, Set<T<T>>>{{}: {}}; |
| v9[{}] = {T<T>()}; |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| T<Null>(); |
| //^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| T<Null>.named(); |
| //^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| T<Object> v12 = foo<T<bool>>(T<bool>()); |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| T<List<List<List<List>>>>.staticMethod<T<int>>(); |
| // ^^^^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |