api: allow nvim_buf_attach from lua using callbacks

1 files changed, 9 insertions, 1 deletions

diff --git a/src/nvim/msgpack_rpc/helpers.c b/src/nvim/msgpack_rpc/helpers.c
index 3925dc546a..3f768dcc0c 100644
--- a/src/nvim/msgpack_rpc/helpers.c
+++ b/src/nvim/msgpack_rpc/helpers.c
@@ -253,7 +253,8 @@ bool msgpack_rpc_to_object(const msgpack_object *const obj, Object *const arg)
           case kObjectTypeFloat:
           case kObjectTypeString:
           case kObjectTypeArray:
-          case kObjectTypeDictionary: {
+          case kObjectTypeDictionary:
+          case kObjectTypeLuaRef: {
             break;
           }
         }
@@ -387,6 +388,13 @@ void msgpack_rpc_from_object(const Object result, msgpack_packer *const res)
         msgpack_pack_nil(res);
         break;
       }
+      case kObjectTypeLuaRef: {
+        // TODO(bfredl): could also be an error. Though kObjectTypeLuaRef
+        // should only appear when the caller has opted in to handle references,
+        // see nlua_pop_Object.
+        msgpack_pack_nil(res);
+        break;
+      }
       case kObjectTypeBoolean: {
         msgpack_rpc_from_boolean(cur.aobj->data.boolean, res);
         break;