dart-sdk/tests/language/mixin/inference_mixin_field_test.dart
Jake Macdonald 3b06df241f Clean up a number of 2.19 opt outs in language tests.
This is less than half of them, will send some other chunks later.

Bug:51557
Change-Id: I4e80812a689fde99e23c34b6405aaf57cd431ce8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/289261
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Jake Macdonald <jakemac@google.com>
2023-03-17 16:17:50 +00:00

29 lines
612 B
Dart

// Copyright (c) 2013, 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.
import "package:expect/expect.dart";
mixin Mixin {
var field;
createIt() {
if (field == null) field = 42;
}
}
class A {
A(foo);
}
class B extends A with Mixin {
// Because [super] references a synthesized constructor, dart2js
// used to not see the null assignment to it.
B(foo) : super(foo);
}
main() {
var a = new B(42);
a.createIt();
Expect.equals(42, a.field);
}