blob: 3510f9e1e0feb38b5270f32c114be4255ce05bef [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.
// @dart = 2.9
// Test mixin de-duplication with new mixin syntax.
import 'package:expect/expect.dart';
class A {
int foo() => 1;
}
class B {
int bar() => 2;
}
abstract class C implements A, B {
}
mixin M1 on A, B {
int sum() => foo() + bar();
}
mixin M2 on A, B, M1 {
int sumX2() => sum()*2;
}
class X extends C with M1, M2 {
int foo() => 4;
int bar() => 5;
}
class Y extends C with M1, M2 {
int foo() => 7;
int bar() => 10;
}
X x = new X();
Y y = new Y();
void main() {
Expect.equals(9, x.sum());
Expect.equals(18, x.sumX2());
Expect.equals(17, y.sum());
Expect.equals(34, y.sumX2());
}