Subj : Re: Calling a function within an object
To   : Zaph <meisterderdinge@gmx.net>
From : Brendan Eich <brendan@meer.net>
Date : Mon Mar 01 2004 02:20 pm

Zaph wrote:

>Hi,
>
>I am new to Javascript and Spidermonkey, and encountered a little
>problem.
>
>I have following code in a script:
>
>	var save;
>	var yyy;
>
>	function add2(x)
>	{	return x+1;
>	}
>	
>
>	function add(x)
>	{	y = add2(x);
>		return y + 1;
>	}
>  
>

You're setting an undeclared global variable, y, here.

>	function xxx(v1,v2,v3)
>	{	this.v1 = v1;
>		this.v2 = v2;
>		this.v3 = v3;
>	}
>
>
>	function test(x)
>	{	save = add(x);
>		return save;
>	}
>
>
>	add.prototype.add2		= add2;
>	xxx.prototype.add		= add;
>
>	yyy = new xxx("111", "222", "333");
>
>
>I compile it, evaluate it and then call test from c++ via
>"JS_CallFunctionName", and that works fine. As far as i know the
>instance of xxx is being generated at the evaluation part of the
>script. And therefore the functions "add" and "add2" are created as
>well.
>  
>

Sure.  Why wouldn't it work?

>What I need to know now, is how to call "xxx.add" and "xxx.add.add2"
>  
>

Those are not references to any properties you've defined.  Do you mean 
xxx.prototype.add and xxx.prototype.add2, or perhaps yyy.add and yyy.add2?

>from C++. I need to do this directly and without other functions (i.e.
>calling the functions inside the script).
>  
>

Try JS_EvaluateScript?

/be

.