blob: b17f234185b5ae5da5a45f6d57e0d6c6803820b4 [file] [log] [blame]
* 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.
* @assertion The [==] operator in constant expressions was defined such that
* [e1 != null] was only allowed if [e1] had one of the "primitive" system
* types. Users had to rewrite their code to [!identical(e1, null)]. This was
* changed so that the [==] expression is always allowed as long as one of the
* operands is [null].
* @description Checks that compile-time exception is thrown if one of the [!=]
* operand is [null] and another one is not a potentially constant.
* @author
String? d = null;
class A {
final String? option;
const A(String? str) : option = d != null ? str : "d";
// ^
// [analyzer] unspecified
// [cfe] unspecified
main() {