From 9f489f591dbbe57d023f42f64a8a94524823c56f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Linse?= <bjorn.linse@gmail.com>
Date: Sat, 1 Jan 2022 16:41:16 +0100
Subject: [PATCH] perf(api): elide luaref copy when setting 'callback' in
 nvim_set_keymap

---
 src/nvim/api/private/helpers.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/nvim/api/private/helpers.c b/src/nvim/api/private/helpers.c
index 0c7ba1845c..4884a44cea 100644
--- a/src/nvim/api/private/helpers.c
+++ b/src/nvim/api/private/helpers.c
@@ -606,7 +606,8 @@ void modify_keymap(Buffer buffer, bool is_unmap, String mode, String lhs, String
   }
 
   if (opts != NULL && opts->callback.type == kObjectTypeLuaRef) {
-    lua_funcref = api_new_luaref(opts->callback.data.luaref);
+    lua_funcref = opts->callback.data.luaref;
+    opts->callback.data.luaref = LUA_NOREF;
   }
   MapArguments parsed_args = MAP_ARGUMENTS_INIT;
   if (opts) {