| // Copyright (c) 2011, 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 |
| |
| // Test for F-Bounded Quantification. |
| |
| class FBound<F extends FBound<F>> {} |
| |
| class Bar extends FBound<Bar> {} |
| |
| class SubBar extends Bar {} |
| |
| class Baz<T> extends FBound<Baz<T>> {} |
| |
| class SubBaz<T> extends Baz<T> {} |
| |
| main() { |
| FBound<Bar> fb = new FBound<Bar>(); |
| FBound<SubBar> fsb = new FBound<SubBar>(); |
| // ^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS |
| // ^ |
| // [cfe] Type argument 'SubBar' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'. |
| // ^ |
| // [cfe] Type argument 'SubBar' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'. |
| // ^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS |
| |
| FBound<Baz<Bar>> fbb = new FBound<Baz<Bar>>(); |
| FBound<SubBaz<Bar>> fsbb = new FBound<SubBaz<Bar>>(); |
| // ^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS |
| // ^ |
| // [cfe] Type argument 'SubBaz<Bar>' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'. |
| // ^ |
| // [cfe] Type argument 'SubBaz<Bar>' doesn't conform to the bound 'FBound<F>' of the type variable 'F' on 'FBound'. |
| // ^^^^^^^^^^^ |
| // [analyzer] COMPILE_TIME_ERROR.TYPE_ARGUMENT_NOT_MATCHING_BOUNDS |
| } |