Joshua Litt
7df03a752c
Change-Id: Iff3074c7882a4f8418f854424c6133b5a53bee4d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152609 Commit-Queue: Joshua Litt <joshualitt@google.com> Reviewed-by: Mayank Patke <fishythefish@google.com>
34 lines
595 B
Dart
34 lines
595 B
Dart
// Copyright (c) 2011, 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";
|
|
|
|
class A {
|
|
A() {}
|
|
int? x;
|
|
|
|
foo() {
|
|
x = 42;
|
|
Expect.equals(42, x);
|
|
x = 0;
|
|
Expect.equals(0, x);
|
|
}
|
|
}
|
|
|
|
class B extends A {}
|
|
|
|
main() {
|
|
A a = new A();
|
|
a.foo();
|
|
Expect.equals(0, a.x);
|
|
a.x = 4;
|
|
Expect.equals(4, a.x);
|
|
a.x = a.x! + 1;
|
|
Expect.equals(5, a.x);
|
|
|
|
B b = new B();
|
|
b.foo();
|
|
Expect.equals(0, b.x);
|
|
}
|