Hello All,
I am trying to return a weak persistent handle to JS through a function
template. However the v8 is crashing on triggering the codepath. What is
the correct way to do it?
My intention is to trigger GC on the persistent handle when it goes out of
scope.
_____________________________________
*My Function Template:*
void QueryFunction(const v8::FunctionCallbackInfo<v8::Value> &args) {
// This function is made available as Query() in the JS code
.
.
auto wrapper = new Query::WrapStop(isolate, iterator, it_info.iterable);
args.GetReturnValue().Set(wrapper->value); *// How to return this??
Set requires a pointer to Persistent*
// The intention is to force GC on wrapper->value when it goes out of
scope in JS
}
________________________________________
*Definition of WrapStop*
struct WrapStop {
explicit WrapStop(v8::Isolate *, Query::Iterator *,
v8::Local<v8::Value>);
virtual ~WrapStop();
v8::Persistent<v8::Value> value; // Force GC on this handle when
it goes out of scope
Query::Iterator *iterator;
static void Callback(const v8::WeakCallbackInfo<WrapStop> &); //
Callback triggered on GC
};
________________________________________
*Constructor for WrapStop*
Query::WrapStop::WrapStop(v8::Isolate *isolate, Query::Iterator *iter,
v8::Local<v8::Value> val) : value(isolate, val), iterator(iter) {
value.SetWeak(this, Query::WrapStop::Callback,
v8::WeakCallbackType::kParameter);
// Set value as weak to force GC
}
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