#// Usage: jjs -scripting foreignobject.js

/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

// cross nashorn engine scripting

// access script objects from other engines in natural syntax

var ScriptEngineManager = Java.type("javax.script.ScriptEngineManager");

// create manager

var manager = new ScriptEngineManager();

// create engine

var engine = manager.getEngineByName("js");

// eval code!

engine.eval(<<CODE

    var obj = {

        foo: 42,

        func: function() {

            print("func: " + this.foo);

        }

    };

CODE);

// Nashorn engine returns script objects as instance of

// the class jdk.nashorn.api.scripting.ScriptObjectMirror

// But nashorn's dynalink linker can treat these objects

// specially to support natural script syntax to access..

// In Java code, you need to use ScriptObjectMirror's

// methods though. Once again, script world is simpler :-)

var foreignObj = engine.get("obj");

// access properties, functions of it

// with natural syntax

print(foreignObj.foo);

foreignObj.func();

print(typeof foreignObj.func);

// access engine's global

var foreignGlobal = engine.eval("this");

// create objects in engine's world from here!

print(new foreignGlobal.Object());

print(new foreignGlobal.Date());