LanguageFeatures/nnbd/late_A08_t05.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.
 */
/**
 * @assertion A toplevel or static variable with an initializer is evaluated as
 * if it was marked late. Note that this is a change from pre-NNBD semantics in
 * that:
 *  - Throwing an exception during initializer evaluation no longer sets the
 *    variable to null
 *  - Reading the variable during initializer evaluation is no longer checked
 *    for, and does not cause an error.
 *
 * @description Check that reading the variable during initializer evaluation is
 * no longer checked for, and does not cause an error.
 * @author sgrekhov@unipro.ru
 * @issue 40375
 */
// Requirements=nnbd-strong
import "../../Utils/expect.dart";

const MAX = 10;
int counter = 0;

class C {
  static String s = initS();
  static String initS() {
    if (++counter > MAX) {
      return "result $counter";
    }
    return s;
  }
}

String g = initG();
String initG() {
  if (++counter > MAX) {
    return "result $counter";
  }
  return g;
}

main() {
  Expect.equals("result 11", C.s);
  counter = 0;
  Expect.equals("result 11", g);
}