Subj : Re: SM: run a script from a native function
To   : Shanti Rao <shantirao@yahoo.com>
From : Brendan Eich <brendan@meer.net>
Date : Fri Jan 09 2004 12:02 pm

Shanti Rao wrote:
[. . .]
> js_ReportIsNotDefined() gets called back from js_Interpret. 
> InitExecptionObject() gets called as before, and makes a ReferenceError 
> exception with the right file name and line number. The pending 
> exception then has the messgae "asdf is not defined", just as before. 
> This time, however, when control returns to EvaluateUCScriptFP(), cx->fp 
> is null,

You mean "not null" here.

> and it doesn't call js_ReportUncaughtException().
> 
> EvaluateUCScriptFP() returns false, so I know an error occurred, but the 
> exception got deleted before I got a chance to see what it was.

No, it did not get deleted.  JS_IsExceptionPending(cx) will return true, 
and it will get reported if control flow unwinds from the outermost 
JS_Evaluate*, JS_Execute*, or JS_Call* API, as I wrote.

I don't know why you want to deprive the scripted callers of your native 
function of the ability to catch errors-as-exceptions by reporting 
errors prematurely.  Why is that?

/be

.