blob: 1bb3a66488abe87ce39c7812fa9ec1c419d29079 [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 A mixin declaration defines an interface. The interface for this
* mixin declaration is equivalent to the interface of the class declared as:
* abstract class A<X extends S, Y extends T> extends A$super<X, Y>
* implements D, E { body' }
* where body' contains abstract declarations corresponding to the instance
* members of body of the mixin A.
* It is a compile time error for the mixin declaration if this class
* declarations would not be valid.
* @description Checks that mixin declaration may have no implementation of all
* declared methods and properties
* @author
abstract class I {
int get i1;
void i2();
void set i3(int);
abstract class J {
int get j1;
void j2();
void set j3(int);
abstract class B {
int get b1;
void b2();
void set b3(int);
abstract class C {
int get c1;
void c2();
void set c3(int);
mixin M on B, C implements I, J {}
main() {