On Fri, Nov 23, 2018 at 7:09 AM Gautham B A <gautham.bangal...@gmail.com> wrote:
> Hi all,
>
> I was wondering if it's alright to just return a v8::MaybeLocal<T> from a C++
> function. We know that v8::Local<T> objects must be escaped using a
> v8::EscapableHandleScope if we are to return v8::Local<T> from a function.
> But I couldn't find the corresponding Escape() overload for v8::MaybeLocal<T>
> objects.
>
> void Callback(const v8::FunctionCallbackInfo<v8::Value> &args) {
> }
>
> v8::MaybeLocal<v8::Object> GetValue(v8::Isolate *isolate, const
> v8::Local<v8::Context> &context) {
> v8::HandleScope handle_scope(isolate);
> auto func = v8::Function::New(isolate, Callback);
> v8::MaybeLocal<v8::Object> instance = func->NewInstance(context); // Do I
> need to Escape() this "instance" ? If so, how?
> return instance; // Is this alright?
> }
>
> Thanks,
> --Gautham
There's an EscapableHandleScope::EscapeMaybe() method that you can use
in newer versions of V8 (starting with V8 6.9.something.)
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