สวัสดี
ในวันที่ วันศุกร์ที่ 5 มิถุนายน ค.ศ. 2020 เวลา 9 นาฬิกา 43 นาที 28 วินาที
UTC+7 almo...@gmail.com เขียนว่า:
> [Back to this one year later :D]
>
> I defined a new public member on v8::Function called 'GetData' that
> returns the data argument specified when the function was created. Seems to
> be working fine, here's the code in case someone wants to give it a quick
> glance:
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> *v8::Local<v8::Value> Function::GetData() const {
> i::Handle<i::JSReceiver> self = Utils::OpenHandle(this); i::Isolate*
> isolate = self->GetIsolate(); if(self->IsJSFunction()) {
> i::Handle<i::JSFunction> jsf = i::Handle<i::JSFunction>::cast(self);
> i::SharedFunctionInfo sfi = jsf->shared(); if(sfi.IsApiFunction()) {
> i::FunctionTemplateInfo fti = sfi.get_api_func_data();
> i::CallHandlerInfo chi = i::CallHandlerInfo::cast(fti.call_code());
> i::Object o = chi.data(); i::Handle<i::Object> ho =
> i::Handle<i::Object>(o, isolate); return ToApiHandle<v8::Value>(ho);
> } } return v8::Undefined(reinterpret_cast<v8::Isolate*>(isolate));}*
>
> It is very verbose on purpose. I will submit a CL soon, I am reading the
> requirements :)
>
> Best,
> Alex.
>
> On Fri, Apr 12, 2019 at 9:27 AM Al Mo <almo...@gmail.com> wrote:
>
>> I eventually solved it by binding a Private symbol with an external value
>> to the Function object.
>>
>> That solves it for the moment. I would love to contribute back to v8 but
>> I'm very limited in time now. As soon as I find some time, I will submit a
>> CL with an approach based on your suggestion.
>>
>> Thanks.
>>
>> On Sunday, April 7, 2019 at 2:43:31 AM UTC+3, Al Mo wrote:
>>>
>>> I'm new here so first of all: Hi Everyone :D
>>>
>>> So, let's say I make a function this way:
>>>
>>> v8::Function::New(<Isolate>, <C_Function>, <Data_Value>);
>>>
>>>
>>> I can then get the <Data_Value> when the Function is invoked with
>>> something like: FunctionCallbackInfo->GetData().
>>>
>>> This is useful for many things. I'm looking for a way to be able to
>>> inspect this data value for a previously defined Function object. Something
>>> like Function->GetData(), you get the idea.
>>>
>>> So far I haven't succeeded and I've read the docs from a to z. Any ideas?
>>>
>> --
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>
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