On Aug 11, 2009, at 11:13 AM, Brian Barnes wrote:
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.
Alas there isn't really a nice way to determine where an exception occurred using the API, but through convention any object thrown gets a line number and sourceURL property attached to it. When you tell JSC to execute a script you provide the initial line number and the url that it will attach to the exception. You can then use normal JSC APIs to get those properties off the exception object. --Oliver
[>] Brian
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