Language/Classes/Constructors/Generative_Constructors/initializing_other_function_t02.dart

// Copyright (c) 2011, 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 if an initializing formal is used by a
/// function other than a non-redirecting generative constructor.
/// @description Checks that it is a compile-time error when the initializing
/// formal syntax is used by a factory constructor (as an optional parameter).
/// @author rodionov


class C {
  int? x;
  factory C.i([this.x]) => new A();
//             ^^^^
// [analyzer] unspecified
// [cfe] unspecified
}

class A implements C {
  int? x = 42;
}

main() {
  new C.i(42);
}