On Mon, Nov 12, 2018 at 10:47 AM Gautham B A
<gautham.bangal...@gmail.com> wrote:
> Hi all,
>
> From the v8 docs, we know that whenever a v8::Local variable needs to live
> beyond the function where it was created, we need to escape it with a
> v8::EscapableHandleScope. Should I call Escape() when I'm setting a v8::Local
> variable as a property of some other v8::Local<v8::Object>? Please see the
> code below -
>
> void GetNewObject(v8::Isolate *isolate) {
> v8::HandleScope handle_scope(isolate);
>
> v8::Local<v8::Object> obj = v8::Object::New(isolate);
> SetSomeValue(isolate, obj);
> }
>
> void SetSomeValue(v8::Isolate *isolate, v8::Local<v8::Object> &obj_out){
> v8::EscapableHandleScope handle_scope(isolate);
> v8::Local<v8::String> value = v8::String::NewFromUtf8(isolate_, "some_value",
> v8::String::kNormalString);
> obj_out->Set(1, handle_scope.Escape(value)); // Is it necessary to escape
> "value"?
> }
>
> Thanks,
> --Gautham
There's no need. It's transitively kept alive by the object you assign it to.
If you created a new object and return that, that's when you'd use an
EscapableHandleScope.
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