// Copyright (c) 2014, 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.

class A {
  final x; //# 01: ok
  //# 02: compile-time error
  var x; //# 03: compile-time error
  get x => null; //# 04: compile-time error
  set x(v) {} //# 05: compile-time error

  const A()
    : x = 'foo' //# 01: continued
    : x = 'foo' //# 02: continued
    : x = 'foo' //# 03: continued
    : x = 'foo' //# 04: continued
    : x = 'foo' //# 05: continued
  ;
}

use(x) => x;

A a = const A();

main() {
  use(a);
}
