LanguageFeatures/nnbd/local_variable_read_A05_t03.dart

/*
 * Copyright (c) 2020, 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 It is a compile time error to read a local variable when the
 * variable is potentially unassigned unless the variable is non-final and has
 * nullable type, or is late
 *
 * @description Checks that it's not a compile time error to read a non-late and
 * non-final nullable local variable when the variable is potentially unassigned
 *
 * @author sgrekhov@unipro.ru
 */
// Requirements=nnbd-strong
import "../../Utils/expect.dart";

main() {
  bool b = true;
  int? x1;
  if (b) {
    x1 = 42;
  }
  Expect.equals(42, x1);

  b = false;
  int? x2;
  if (b) {
    x2 = 42;
  }
  Expect.isNull(x2);
}