1 files changed, 1 insertions, 0 deletions
diff --git a/lapi.c b/lapi.c
index 80fc34b..712c348 100644
--- a/lapi.c
+++ b/lapi.c
@@ -552,6 +552,7 @@ LUA_API const char *lua_pushfstring (lua_State *L, const char *fmt, ...) {
 }
 
 
+// saw 创建 C 闭包，并设置 upvalue，如果没有upvalue，设置为轻量C函数（5.2开始引入）
 LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
   lua_lock(L);
   if (n == 0) {