dart-sdk/tests/language/vm/regress_flutter_19612_test.dart
Robert Nystrom 2034061433 Migrate language_2/vm to NNBD.
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
2020-06-25 20:39:23 +00:00

27 lines
681 B
Dart

// Copyright (c) 2018, 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.
// Regression test for https://github.com/flutter/flutter/issues/19612.
// This test verifies that negated condition is correctly handled by the
// AOT compiler.
import "package:expect/expect.dart";
class X {
final int? maxLines;
X([this.maxLines]);
bool get isMultiline => maxLines != 1;
}
X x1 = new X(1);
X x2 = new X(42);
X x3 = new X();
main() {
Expect.isFalse(x1.isMultiline);
Expect.isTrue(x2.isMultiline);
Expect.isTrue(x3.isMultiline);
}