blob: d1043dcf27a42dceb0d9b27c5f9c101f98fbedc2 [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 To handle these gracefully, we support a [...?] "null-aware
/// spread" operator. In cases where the spread expression evaluates to [null],
/// that expands to an empty collection instead of throwing a runtime expression.
/// That turns the example to:
/// var command = [
/// engineDartPath,
/// '--target=flutter',
/// ...?extraFrontEndOptions,
/// mainPath
/// ];
/// @description Checks that it is a compile error if spreadable element in the
/// [Set] is not null-aware and it's [null].
/// @author
Set getASet(
String engineDartPath, List? extraFrontEndOptions, String mainPath) {
{engineDartPath, '--target=flutter', ...extraFrontEndOptions, mainPath});
// ^
// [analyzer] unspecified
// [cfe] unspecified
main() {
getASet("enginePath", null, "mainPath");