/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * Test getter with function.
 *
 * @test
 * @run
 */

var a = {
 get func() {
    var aCount = 0;
    return function() {
       return aCount++;
    }
 }
};

for (i = 0; i < 10; i++) {
  print(a.func());
}

var b = {
 get func() {
    var bCount = 0;
    return function() {
       return this.bCount++;
    }
 }
};

for (i = 0; i < 10; i++) {
  print(b.func());
}

var cCount = 0;

var c = {
 get func() {
    return function() {
       return cCount++;
    }
 }
};

for (i = 0; i < 10; i++) {
  print(c.func());
}
