blob: 495dc1975012c0c3b77a89787d89270a976d8db3 [file] [log] [blame]
* 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.
* @assertion In a mixin declaration like
* mixin A<X extends S, Y extends T> on B, C implements D, E { body }
* the on clause declares the interfaces B and C as super-class constraints of
* the mixin. Having a super-class constaint allows the mixin declaration
* instance members to perform super-invocations (like if they are
* allowed by a class implementing both B and C. The mixin introduced by A can
* then only be applied to classes that implement both B and C.
* @description Checks that it is a compile error if mixin is applied to the
* class which doesn't implement required interface
* @compile-error
* @issue 35111
* @author
class A {
covariant num number;
class B extends A {
int number;
mixin M on A {
test() {
super.number = 3.14;
class MA extends B with M {}
main() {
new MA().test();