Language/Expressions/Shift/equivalent_t01.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 A shift expression of the form e1 op e2 is equivalent
 * to the method invocation e1.op(e2).
 * @description Checks that an expressions of the form e1 << e2
 * is equivalent to the method invocation e1.operator<<(e2).
 * @author kaigorodov
 */
import '../../../Utils/expect.dart';

var logStr = "";

class A {
  operator <<(var v) {
    logStr = "${logStr}<<";
    return true;
  }
  operator >>(var v) {
    logStr = "${logStr}>>";
    return true;
  }
}

main() {
  logStr = "";
  A a = new A();
  a << 1;
  a >> 1;
  Expect.equals("<<>>", logStr);
}