dart-sdk/tests/dart2js/effectively_constant_instance_field_test.dart
Joshua Litt f9f1ca6171 [dart2js] Create tests/dart2js for nnbd.
Change-Id: Ib8721cf976803d8d1b9d723b7e691e344c768b67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149881
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Joshua Litt <joshualitt@google.com>
2020-06-09 16:53:15 +00:00

27 lines
514 B
Dart

// Copyright (c) 2019, 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.
// dart2jsOptions=--omit-implicit-checks
import 'package:expect/expect.dart';
class C {
const C();
}
class A {
var field = const C();
}
class B {
var field;
}
@pragma('dart2js:noInline')
test(o) => o.field;
main() {
Expect.isNotNull(test(new A()));
Expect.isNull(test(new B()));
}