1 files changed, 14 insertions, 3 deletions
diff --git a/src/node/ext/call.h b/src/node/ext/call.h
index cffff00fce..31c6566d14 100644
--- a/src/node/ext/call.h
+++ b/src/node/ext/call.h
@@ -51,12 +51,20 @@ namespace node {
 using std::unique_ptr;
 using std::shared_ptr;
 
+typedef Nan::Persistent<v8::Value, Nan::CopyablePersistentTraits<v8::Value>> PersistentValue;
+
 v8::Local<v8::Value> nanErrorWithCode(const char *msg, grpc_call_error code);
 
 v8::Local<v8::Value> ParseMetadata(const grpc_metadata_array *metadata_array);
 
+struct Resources {
+  std::vector<unique_ptr<Nan::Utf8String> > strings;
+  std::vector<unique_ptr<PersistentValue> > handles;
+};
+
 bool CreateMetadataArray(v8::Local<v8::Object> metadata,
-                         grpc_metadata_array *array);
+                         grpc_metadata_array *array,
+                         shared_ptr<Resources> resources);
 
 /* Wrapper class for grpc_call structs. */
 class Call : public Nan::ObjectWrap {
@@ -98,7 +106,8 @@ class Call : public Nan::ObjectWrap {
 class Op {
  public:
   virtual v8::Local<v8::Value> GetNodeValue() const = 0;
-  virtual bool ParseOp(v8::Local<v8::Value> value, grpc_op *out) = 0;
+  virtual bool ParseOp(v8::Local<v8::Value> value, grpc_op *out,
+                       shared_ptr<Resources> resources) = 0;
   virtual ~Op();
   v8::Local<v8::Value> GetOpType() const;
   virtual bool IsFinalOp() = 0;
@@ -109,10 +118,12 @@ class Op {
 
 typedef std::vector<unique_ptr<Op>> OpVec;
 struct tag {
-  tag(Nan::Callback *callback, OpVec *ops, Call *call);
+  tag(Nan::Callback *callback, OpVec *ops,
+      shared_ptr<Resources> resources, Call *call);
   ~tag();
   Nan::Callback *callback;
   OpVec *ops;
+  shared_ptr<Resources> resources;
   Call *call;
 };