Re: comments on Matrix

On Fri, Mar 22, 2013 at 1:48 AM, Robert O'Callahan <robert@ocallahan.org>wrote:

> On Fri, Mar 22, 2013 at 7:48 AM, Rik Cabanier <cabanier@gmail.com> wrote:
>
>> On Thu, Mar 21, 2013 at 11:38 AM, Tab Atkins Jr. <jackalmage@gmail.com>wrote:
>>
>>> Only if you actually throw it.  It's not eagerly created every call.
>>>
>>
>> I worked a little with the mozilla code base and it seems that they
>> always create the object.
>> It's probably not a huge amount of overhead since it's not dynamically
>> allocated.
>>
>
> We certainly don't create a JS exception object if an exception is not
> actually thrown.
>

If a function is marked as throwing in the IDL, doesn't it get an exception
object as a parameter on the C++ side?