dart-sdk/tests/language_2/list/mixin_test.dart
Robert Nystrom fc1b1ecc71 Move files under language_2 into subdirectories.
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>
2019-12-11 19:18:00 +00:00

19 lines
324 B
Dart

import 'dart:collection';
import 'package:expect/expect.dart';
class MyList extends ListBase {
int get length => 4;
set length(int x) {}
int operator [](int x) => 42;
void operator []=(int x, val) {}
}
main() {
var x = new MyList();
int z = 0;
x.forEach((y) {
z += y;
});
Expect.equals(z, 4 * 42);
}