LanguageFeatures/nnbd/weak/overriding/override_checking_A02_FIELD_t08.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 In a migrated library, override checking must check that an
 * override is consistent with all overridden methods from other migrated
 * libraries in the super-interface chain, since a legacy library is permitted
 * to override otherwise incompatible signatures for a method.
 *
 * @description Check that if opted-in class implements two classes (one is
 * legacy) with some field, opted-in field of non-nullable type can override
 * legacy field.
 *
 * @author iarkh@unipro.ru
*/
// Requirements=nnbd-weak
import "dart:async";
import "override_checking_A02_opted_out_lib.dart";
import "../../../../Utils/expect.dart";

void testme() {}
void testme1() {}

abstract class AA {
  int i = -1;
  Object o = 5;
  Function func = testme1;
  FutureOr<int> fi = 2;
  FutureOr<Function> ff = testme1;
}

class A implements LEGACY_FIELD, AA {
  int i = 1;
  Object o = "";
  Function func = testme;
  FutureOr<int> fi = 12345;
  FutureOr<Function> ff = testme;

  dynamic d = 1;
  Null n = null;
  FutureOr f = 1;
  void v;
}

main() {
  A a = A();
  Expect.equals(1, a.i);
  Expect.equals("", a.o);
  Expect.equals(testme, a.func);
  Expect.equals(12345, a.fi);
  Expect.equals(testme, a.ff);
}