| // 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 extension declaration is a top-level declaration with a grammar |
| /// similar to: |
| /// <extension> ::= |
| /// `extension' <identifier>? <typeParameters>? `on' <type> `?'? `{' |
| /// memberDeclaration* |
| /// `}' |
| /// Instance member declaration parameters must not be marked covariant |
| /// |
| /// @description Check that instance member declaration parameters must not be |
| /// marked covariant |
| /// @author sgrekhov@unipro.ru |
| |
| |
| |
| class A {} |
| |
| class C extends A { |
| } |
| |
| extension on C { |
| addChild(covariant A child) {} |
| // ^^^^^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_USE_OF_COVARIANT_IN_EXTENSION |
| // [cfe] Can't have modifier 'covariant' in an extension. |
| addChild2(A c, [covariant A child]) {} |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| addChild3(A c, {covariant A child}) {} |
| // ^^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| void set setter (covariant A value) {} |
| // ^^^^^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_USE_OF_COVARIANT_IN_EXTENSION |
| // [cfe] Can't have modifier 'covariant' in an extension. |
| C operator+(covariant A other) => this; |
| // ^^^^^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_USE_OF_COVARIANT_IN_EXTENSION |
| // [cfe] Can't have modifier 'covariant' in an extension. |
| } |
| |
| main() { |
| new C(); |
| } |