1 /*
   2  * Copyright (c) 2016, 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-8157160: JSON.stringify does not work on ScriptObjectMirror objects
  26  *
  27  * @test
  28  * @option -scripting
  29  * @run
  30  */
  31 
  32 var SM = Java.type("javax.script.ScriptEngineManager");
  33 var AJSO = Java.type("jdk.nashorn.api.scripting.AbstractJSObject");
  34 var Supplier = Java.type("java.util.function.Supplier");
  35 
  36 var engine = new SM().getEngineByName("nashorn");
  37 
  38 // JSON stringify ScriptObjectMirror instances
  39 print(JSON.stringify(engine.eval("({ foo : 42 })")));
  40 print(JSON.stringify(engine.eval("([5, 6, 76, 7])")));
  41 print(JSON.stringify(engine.eval(<<EOF
  42  ({
  43      toJSON: function() "hello"
  44  })
  45 EOF
  46 )));
  47 
  48 print(JSON.stringify(engine.eval(<<EOF
  49 obj = {
  50     name: 'nashorn',
  51     versions: [ 'es5.1', 'es6' ]
  52 }
  53 EOF
  54 )));
  55 
  56 var dm = engine.eval("new Date()");
  57 print('"' + dm.toJSON() + '"' == JSON.stringify(dm));
  58 
  59 // JSON stringifying an arbitrary JSObject impl.
  60 var jsObj = new AJSO() {
  61     keySet: function() {
  62         var keys = new java.util.HashSet();
  63         keys.add("x");
  64         keys.add("y");
  65         return keys;
  66     },
  67 
  68     getMember: function(name) {
  69         if (name == "x") {
  70             return 42;
  71         } else if (name == "y") {
  72             return "hello";
  73         }
  74     }
  75 };
  76 print(JSON.stringify(jsObj));
  77 
  78 // try toJSON implementation on JSObject
  79 var jsObj2 = new AJSO() {
  80     getMember: function(name) {
  81         if (name == 'toJSON') {
  82             return function() {
  83                 return "my json representation";
  84             }
  85         }
  86     }
  87 };
  88 print(JSON.stringify(jsObj2));
  89 
  90 var jsObj3 = new AJSO() {
  91     getMember: function(name) {
  92         if (name == 'toJSON') {
  93             return new Supplier() {
  94                 "get": function() {
  95                     return "value from toJSON function";
  96                 }
  97             };
  98         }
  99     }
 100 };
 101 print(JSON.stringify(jsObj3));
 102 
 103 // replacer function from another script world
 104 print(JSON.stringify({
 105    foo: "hello"
 106 }, engine.eval(<<EOF
 107     function (key, value) {
 108        if (key == "foo") {
 109            return value.toUpperCase()
 110        }
 111        return value;
 112     }
 113 EOF)));