1 /*
   2  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * JDK-8013874: Function argument's prototype seem cached and wrongly reused
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 function deepEqual(actual, expected) {
  32     print("deepEqual: " + (actual.prop === expected.prop) + ", prop: " + expected.prop);
  33 }
  34 
  35 var proto = {};
  36 var other = {
  37     prop: 0
  38 };
  39 
  40 function NameBuilder(first, last) {
  41     this.first = first;
  42     this.last = last;
  43     return this;
  44 }
  45 
  46 NameBuilder.prototype = proto;
  47 
  48 function NameBuilder2(first, last) {
  49     this.first = first;
  50     this.last = last;
  51     return this;
  52 }
  53 
  54 NameBuilder2.prototype = proto;
  55 
  56 var nb1 = new NameBuilder('Ryan', 'Dahl');
  57 var nb2 = new NameBuilder2('Ryan', 'Dahl');
  58 
  59 print("In loader, nb1.prop === nb2.prop " + (nb1.prop === nb2.prop));
  60 deepEqual(nb1, nb2);
  61 
  62 NameBuilder2.prototype = other;
  63 nb2 = new NameBuilder2('Ryan', 'Dahl');
  64 
  65 print("In loader, nb1.prop === nb2.prop " + (nb1.prop === nb2.prop));
  66 deepEqual(nb1, nb2);