Subj : SpiderMonkey: implement property of type object with get/set methods
To   : netscape.public.mozilla.jseng
From : "Yuraukar" <yuraukar@hotmail.com>
Date : Fri Sep 26 2003 07:29 pm

I am trying to integrate the SpiderMonkey engine into my C++
application. Of course, I will need to wrap my objects, so they
are accessible from JavaScript code.

I worked myself through the basics of
http://home.tiscali.be/franky.braem17/spidermonkey.htm
and other helpful articles.
However, I fail to achieve the following task:

I have a class Customer that has a reference to a class Account, e.g.

class Customer
{
    ...
    int nID;
    Account account;
    ...
};

I would like to have this as a property in JavaScript, so the following
code becomes valid:
c = new Customer();
a = c.account;

I am stuck at the code for the property getter (e.g. JSGetProperty). What
am I supposed to write to return an existing C++ instance as a result?

.....
p = (Customer*)JS_GetPrivate(cx, obj);
.....
case prop_id:
    *vp = INT_TO_JSVAL(p->nID);
    break;
case prop_account:
    *vp = ???????; // anyhow return &(p->account) here
    break;
....

Any examples or hints?
I would not like to go via JS_DefineObject, as in reality the situation
is slightly more complicated.

Yuraukar.

.