Hi Mads,
thanks for a prompt response. Let me just add that "when control is
passed to JavaScript again" is not the most precise formulation:
v8::TryCatch tc;
v8::ThrowException("...");
v8::Script::New("1+1")->Run();
if (tc.HasCaught()) { ... }
Here the JS is indeed invoked after the exception has been thrown, but
nothing happens. Therefore, calling ThrowException has only sense when
executed from within a callback c++ function.
O.
2011/1/17 Mads Sig Ager <[email protected]>:
> That observation is correct and it is the intended behavior. Through the API
> you can throw JavaScript exceptions. If no JavaScript is running they will
> have no effect. Exceptions scheduled through the api will be thrown when
> control is passed to JavaScript again.
> Cheers, -- Mads
>
> On Sat, Jan 15, 2011 at 9:43 PM, ondras <[email protected]> wrote:
>>
>> Hi,
>>
>> it looks like it is not possible to throw an exception from C++ when there
>> is no JS code currently being executed. For instance:
>>
>> /* create context first etc... */
>> v8::TryCatch tc;
>> v8::ThrowException("...");
>> if (tc.HasCaught()) { ... }
>>
>> This external exception handler does not catch, even if I execute
>> arbitrary (non-throwing) javascript after calling the v8::ThrowException().
>>
>> 1) is my observation correct?
>> 2) is this behavior correct?
>>
>>
>> Thanks,
>> Ondrej
>>
>> --
>> v8-users mailing list
>> [email protected]
>> http://groups.google.com/group/v8-users
>
> --
> v8-users mailing list
> [email protected]
> http://groups.google.com/group/v8-users
--
v8-users mailing list
[email protected]
http://groups.google.com/group/v8-users
