Files
sdk/tests/language_2/unsorted/unevaluated_field.dart
T
Erik Ernst e3af7e724f Update usage of int/String fromEnvironment
Breaking change 40678 requires the constructors int.fromEnvironment and
String.fromEnvironment to get new default values for the named
parameter `defaultValue`. This CL changes usages of these constructors
such that they do not depend on the default value, such that it
becomes a non-breaking change for code in the SDK repo to perform the
change in sdk and in sdk_nnbd.

Change-Id: I82af0e1f92d6cd3618b65c0c50d754ae8c39eb0a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/140284
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
2020-03-24 11:19:14 +00:00

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684 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.
// Test that environment constants in field initializers work properly.
import "package:expect/expect.dart";
const int gx =
const bool.hasEnvironment("x") ? const int.fromEnvironment("x") : null;
class A {
final int x = gx;
final int y =
const bool.hasEnvironment("y") ? const int.fromEnvironment("y") : null;
const A();
}
main() {
const a = const A();
Expect.isTrue(a.x == null || a.x != null);
Expect.isTrue(a.y == null || a.y != null);
}