| // Copyright (c) 2018, 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=2.19 |
| |
| class Base { |
| void foo() {} |
| } |
| |
| class M1 { |
| void foo( |
| // Prevent formatter from joining the line below to the one above |
| {x}) {} |
| } |
| |
| class BaseWithM1 = Base with M1; |
| |
| class M2 { |
| void foo() {} |
| } |
| |
| class Derived extends BaseWithM1 with M2 {} |
| // ^ |
| // [cfe] Applying the mixin 'M2' to 'BaseWithM1' introduces an erroneous override of 'foo'. |
| // ^^ |
| // [analyzer] COMPILE_TIME_ERROR.INVALID_OVERRIDE |
| |
| main() { |
| new Derived().foo(); |
| } |
