| // 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 In a migrated library, override checking must check that an |
| /// override is consistent with all overridden methods from other migrated |
| /// libraries in the super-interface chain, since a legacy library is permitted |
| /// to override otherwise incompatible signatures for a method. |
| /// |
| /// @description Check that if generic opted-in class implements two classes (one |
| /// is legacy), child opted-in class type parameter can extend nullable type. |
| /// |
| /// @author iarkh@unipro.ru |
| |
| // Requirements=nnbd-weak |
| import "../../../../Utils/expect.dart"; |
| import "override_checking_A02_opted_out_lib.dart"; |
| |
| class OPTED_CLASS<T> {} |
| class OPTED_CLASS_INT<T extends int?> {} |
| class OPTED_CLASS_OBJECT<T extends Object?> {} |
| class OPTED_CLASS_FUNCTION<T extends Function?> {} |
| class OPTED_CLASS_NULL<T extends Null> {} |
| |
| class Opted<T> implements LEGACY_CLASS<T>, OPTED_CLASS<T> { |
| dynamic getParamType() => typeOf<T>(); |
| } |
| |
| class OptedInt<T extends int?> implements LEGACY_CLASS_INT<T>, OPTED_CLASS_INT<T> { |
| dynamic getParamType() => T; |
| } |
| |
| class OptedObject<T extends Object?> implements OPTED_CLASS_OBJECT<T>, LEGACY_CLASS_OBJECT<T> { |
| dynamic getParamType() => T; |
| } |
| |
| class OptedFunction<T extends Function?> implements LEGACY_CLASS_FUNCTION<T>, OPTED_CLASS_FUNCTION<T> { |
| dynamic getParamType() => T; |
| } |
| |
| class OptedNull<T extends Null> implements LEGACY_CLASS_NULL<T>, OPTED_CLASS_NULL<T> { |
| dynamic getParamType() => T; |
| } |
| |
| main() { |
| Expect.equals(typeOf<dynamic>(), Opted().getParamType()); |
| Expect.equals(typeOf<dynamic>(), Opted<dynamic>().getParamType()); |
| |
| Expect.equals(typeOf<int?>(), OptedInt().getParamType()); |
| Expect.equals(typeOf<int?>(), OptedInt<int?>().getParamType()); |
| |
| Expect.equals(typeOf<Object?>(), OptedObject().getParamType()); |
| Expect.equals(typeOf<Object?>(), OptedObject<Object?>().getParamType()); |
| |
| Expect.equals(typeOf<Function?>(), OptedFunction().getParamType()); |
| Expect.equals(typeOf<Function?>(), OptedFunction<Function?>().getParamType()); |
| } |