Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
47 lines
825 B
Dart
47 lines
825 B
Dart
// Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Test mixin de-duplication with new mixin syntax.
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import 'package:expect/expect.dart';
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class A {
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int foo() => 1;
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}
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class B {
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int bar() => 2;
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}
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abstract class C implements A, B {
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}
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mixin M1 on A, B {
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int sum() => foo() + bar();
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}
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mixin M2 on A, B, M1 {
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int sumX2() => sum()*2;
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}
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class X extends C with M1, M2 {
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int foo() => 4;
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int bar() => 5;
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}
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class Y extends C with M1, M2 {
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int foo() => 7;
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int bar() => 10;
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}
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X x = new X();
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Y y = new Y();
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void main() {
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Expect.equals(9, x.sum());
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Expect.equals(18, x.sumX2());
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Expect.equals(17, y.sum());
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Expect.equals(34, y.sumX2());
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}
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