Propagate async_context

src/binding.cpp

@@ -229,6 +229,7 @@ int GetResult(sass_context_wrapper* ctx_w, Sass_Context* ctx, bool is_sync = fal
 
 void MakeCallback(uv_work_t* req) {
   Nan::HandleScope scope;
+  Nan::AsyncResource async("sass:MakeCallback");
 
   Nan::TryCatch try_catch;
   sass_context_wrapper* ctx_w = static_cast<sass_context_wrapper*>(req->data);
@@ -245,7 +246,7 @@ void MakeCallback(uv_work_t* req) {
 
   if (status == 0 && ctx_w->success_callback) {
     // if no error, do callback(null, result)
-    ctx_w->success_callback->Call(0, 0);
+    ctx_w->success_callback->Call(0, 0, &async);
   }
   else if (ctx_w->error_callback) {
     // if error, do callback(error)
@@ -253,7 +254,7 @@ void MakeCallback(uv_work_t* req) {
     v8::Local<v8::Value> argv[] = {
       Nan::New<v8::String>(err).ToLocalChecked()
     };
-    ctx_w->error_callback->Call(1, argv);
+    ctx_w->error_callback->Call(1, argv, &async);
   }
   if (try_catch.HasCaught()) {
     Nan::FatalException(try_catch);

src/callback_bridge.h

@@ -151,6 +151,7 @@ void CallbackBridge<T, L>::dispatched_async_uv_callback(uv_async_t *req) {
    * post_process_args().
    */
   Nan::HandleScope scope;
+  Nan::AsyncResource async("sass:CallbackBridge");
   Nan::TryCatch try_catch;
 
   std::vector<v8::Local<v8::Value>> argv_v8 = bridge->pre_process_args(bridge->argv);
@@ -159,7 +160,7 @@ void CallbackBridge<T, L>::dispatched_async_uv_callback(uv_async_t *req) {
   }
   argv_v8.push_back(Nan::New(bridge->wrapper));
 
-  bridge->callback->Call(argv_v8.size(), &argv_v8[0]);
+  bridge->callback->Call(argv_v8.size(), &argv_v8[0], &async);
 
   if (try_catch.HasCaught()) {
     Nan::FatalException(try_catch);