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>
29 lines
744 B
Dart
29 lines
744 B
Dart
// Copyright (c) 2017, 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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import "package:expect/expect.dart";
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class Base {
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var y;
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Base._() {
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y = "world";
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}
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}
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abstract class Mixin implements Base {
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final x = "hello";
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factory Mixin() => new _MixinAndBase._();
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}
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// TODO(jmesserly): according to the spec, this does not appear to be a valid
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// mixin (because it declares a constructor), however it is supported by Dart
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// implementations.
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class _MixinAndBase = Base with Mixin;
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void main() {
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var val = new Mixin();
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Expect.equals(val.x, "hello");
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Expect.equals(val.y, "world");
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}
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