blob: ef770b73366efdebd1201528c105d55c32480f9b [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 it is a compile-time error for the mixin declaration
* if classes from implements clause contain methods with the same names but
* different return types.
* @compile-error
* @author
class I {
int i1() => 1;
class J {
double i1() => 2.0;
class B {}
class C {}
mixin M on B, C implements I, J {}
main() {