[webkit-dev] JSC: Callback functions returning exception, what should be the JSValueRef return?
Brian Barnes
ggadwa at charter.net
Tue Aug 11 11:13:21 PDT 2009
Darin Adler wrote:
> The design is that the return value is ignored. In theory, you can
> safely return anything, even a garbage pointer.
>
> -- Darin
>
>
Just so I get the concept (how exceptions are handled is one of the
places that is completely different in Spidermonkey so it's one of the
biggest hurdles for me) -- when the class based SET property or a STATIC
FUNCTION is called, it detects when an exception is thrown by my
replacement of the JSValueRef *exception, correct? There's nothing else
I have to trigger (in SM you have to implicitly trigger by calling a
function.)
Also, when an exception I create reaches the top (where I originally
called into the script with JSObjectCallAsFunction) how can I determine
the line number where the exception happened? I can't seem to find this
in the docs either. If I have to do this when I create the exception,
that is also fine.
[>] Brian
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