Subj : Re: Exporting Object Constructor
To   : netscape.public.mozilla.jseng
From : Brian Genisio <BrianGenisio@yahoo.com>
Date : Thu Feb 12 2004 11:12 am

Brian Genisio wrote:

> Hi all,
> 
> I am creating a whole bunch of objects that have interfaces in my 
> spidermonkey code.  I use JS_InitClass to do this.  Everything is 
> accessable through my global object, and all of my objects are working 
> well.
> 
> Now, I have a class named MyClass, which I want the user to be able to 
> create a new class:
> 
> var my_new_class = new MyClass(arg1, arg2);
> 
> In my JS_InitClass, I have defined a constructor, but it never gets 
> called.  In fact, the JS_ExecuteScript quietly exits when I do this.
> 
> Any Ideas to what I am missing?  Do I need to create a MyClass method in 
> my global class, in order to construct the object?  That shouldnt be 
> that hard, but I guess I assumed that the MyClass constructor would be 
> called automatically, using new.
> 
> Thanks,
> Brian
> 

*doat*  I found my problem.  Obviously nothing wrong with the API... and 
I understood the API correctly.

I have a class template in place for my objects.  I had a screwy problem 
where the wrong function was being called for the constructor.  Then, in 
that constructor, it had a check, that returned with JS_FALSE, but no 
JS_ReportError, which caused the silent failure.

I was not able to find the problem right away, because I was breaking in 
the wrong places...

:)  All fixed.

Brian

.