Subj : Re: Getting function name with generic function call hook
To   : Sterling Bates <sblist*nospam*serv@bigbangco.com>
From : Brendan Eich <brendan@meer.net>
Date : Mon Oct 27 2003 02:37 pm

Sterling Bates wrote:

>I've found a couple others who've claimed to have similar issues, but none
>of the remedies worked for me.  The most applicable response was this:
>
>http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=3B7779DF.2050105%40meer.net
>
>Here's the C code:
>
>    JSObject *funobj = JSVAL_TO_OBJECT(argv[-2]);
>    JSFunction *fun = (JSFunction *) JS_GetPrivate(cx, funobj);
>    const char *name = JS_GetFunctionName(fun);
>  
>

JS_GetFunctionId is the modern way to get the full, jschar (Unicode 
plane 0 characters) name.

>The following is the Delphi equivalent (to my best understanding):
>
>    Dec(argv,2);    // point to argv[-2]
>    funobj := PJSObject(argv^ or JSTYPE_OBJECT); // JSVAL_TO_OBJECT
>  
>

No, that's not what JSVAL_TO_OBJECT does.  Please re-read jsapi.h near 
the top; note that JSTYPE_* has nothing to do with jsval values and tags.

/be

.