I don't know for sure, but if you don't tell the interceptor that a isn't a
property on CONS, then it thinks it is and then it finds cons_object.a but
then you don't have a value for it, so it returns undefined.
Have you fully implemented all 5 of the callbacks for setnamedpropertyhandler?
maybe even just put some print statements in them to see which are called
when and for what property names.
On Mon, Apr 3, 2017 at 11:01 PM, Danny Dorfman <wilderness...@gmail.com>
wrote:
> Yes, I use SetNamedPropertyHandler. However, I'd like to make the
> following distinction:
> If I am *not* inside "using", the handler for "a" should return
> v8::Undefined (or some other preset value).
> If I *am* inside "using", the handler should not return anything at all,
> and let V8 determine the value.
> Is that possible?
>
>
> On Monday, April 3, 2017 at 10:51:57 PM UTC+3, Zac Hansen wrote:
>>
>> Are you using the objecttemplate's setnamedpropertyhandler call? if so,
>> are you implementing all the callbacks to say that your CONS object doesn't
>> have a property a?
>>
>> On Monday, April 3, 2017 at 7:25:25 AM UTC-7, Danny Dorfman wrote:
>>>
>>> Hello there,
>>>
>>> Is there a way for my interceptor to know that it's running under
>>> "with", as in this example:
>>>
>>> var a = 10;
>>> with (new CONS()) { do_something(a); }
>>>
>>> The problem is, that 'a' is intercepted by the new object, and is
>>> rendered undefined. I would like it to use the external 'a' instead.
>>>
>>> Regards,
>>> Danny
>>>
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