// Copyright (c) 2016, 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
/// Description    Operator                          Associativity Precedence
/// Shift          <<, >>                            Left           12
/// @description Test that '<<' shift operator has left associativity
/// @author sgrekhov@unipro.ru

import "../../../Utils/expect.dart";

String log = "";

class C {
  String id = "";

  C operator <<(C val) {
    log += id;
    return val;
  }

  C(this.id);
}

main() {
  C c1 = new C("c1");
  C c2 = new C("c2");
  C c3 = new C("c3");
  C c4 = new C("c4");

  C c = c1 << c2 << c3 << c4;
  Expect.equals("c4", c.id);
  Expect.equals("c1c2c3", log);
}