blob: 4156f5cabdc23095a813de29c1f705556fb96e3c [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 Further, the interfaces B and C must be compatible. The on clause
* introduces a synthetic interface combining B and C, call it A$super, which is
* equivalent to the interface of a class declaration of the form:
* abstract class A$super<X extends S, Y extends T> implements B, C {}
* It is a compile-time error for the mixin declaration if the class declaration
* above would not be valid.
*
* @description Checks that it is a compile-time error for the mixin declaration
* if the interfaces B and C are not compatible.
* @compile-error
* @author ngl@unipro.ru
*/
class I {}
class J {}
class B {
int get n => 1;
}
class C {
double get n => 2.0;
}
mixin M on B, C implements I, J {
}
class MA with M {}
main() {
new MA();
}