blob: 98c7534b6bb6d9db93bbc17a737e1fb40f7e2c17 [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 mixin declaration can only be applied to classes
/// that implement both B and C. Test the case when mixin declaration is applied
/// to the class with mixins only one of the interfaces but not implemented
/// interface is not abstract
/// @author
class B {
String get gb1 => "B.gb1";
class C {
String get gc1 => "C.gc1";
class A extends Object with B {
String get gc1 => "A.gc1";
mixin M on B, C {}
class MA extends A with M {
// ^
// [analyzer] unspecified
// ^
// [cfe] unspecified
main() {
new MA();