tests/hot_reload/run_new_field_initializers/main.1.dart

// Copyright (c) 2024, 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.

import 'package:expect/expect.dart';
import 'package:reload_test/reload_test_utils.dart';

// Adapted from:
// https://github.com/dart-lang/sdk/blob/63622f03eeaf72983b2f4957fa84da8062693f00/runtime/vm/isolate_reload_test.cc#L4852

class Foo {
  int x = 4;
  int y = 7;
}

late Foo value;

helper() {
  // Don't reinitialize Foo. The new field 'y' is nevertheless initialized.
  return value.y;
}

Future<void> main() async {
  Expect.equals(4, helper());
  Expect.equals(0, hotReloadGeneration);

  await hotReload();

  Expect.equals(7, helper());
  Expect.equals(1, hotReloadGeneration);
}

/** DIFF **/
/*
 
 class Foo {
   int x = 4;
+  int y = 7;
 }
 
 late Foo value;
 
 helper() {
-  // Initialize Foo with one field.
-  value = Foo();
-  return value.x;
+  // Don't reinitialize Foo. The new field 'y' is nevertheless initialized.
+  return value.y;
 }
 
 Future<void> main() async {
*/