Language/Expressions/Equality/evaluation_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 Evaluation of an equality expression ee of the form e1 == e2
 * proceeds as follows:
 * •  The expression e1 is evaluated to an object o1.
 * •  The expression e2 is evaluated to an object o2.
 * •  If either o1 or o2 is null, then ee evaluates to true if both o1 and o2
 *    are null and to false otherwise. Otherwise,
 * •  ee is equivalent to the method invocation o1.==(o2).
 * @description Checks that first evaluated the left operand and then the right
 * operand.
 * @author msyabro
 */

import '../../../Utils/expect.dart';

var log = '';

foo(p) => log = '$log$p';

main() {
  foo(1) == foo(2);
  Expect.equals('12', log);
}