Minor optimisation to not lookup the length of a table every time, wh…

…en appending to it.
pioneerspacesim · Oct 16, 2023 · a227b3f · a227b3f
1 parent a3de72d
commit a227b3f
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/lua/LuaFileSystem.cpp b/src/lua/LuaFileSystem.cpp
@@ -163,6 +163,8 @@ static int l_filesystem_read_dir(lua_State *l)
 	lua_newtable(l);
 	int dirsTable = lua_gettop(l);
 
+	int dirs_len = 0;
+	int files_len = 0;
 	for (; !files.Finished(); files.Next()) {
 		const FileSystem::FileInfo &info = files.Current();
 
@@ -172,9 +174,9 @@ static int l_filesystem_read_dir(lua_State *l)
 		lua_setfield(l, -2, "mtime");
 
 		if (info.IsDir())
-			lua_rawseti(l, dirsTable, (int)lua_rawlen(l, dirsTable) + 1);
+			lua_rawseti(l, dirsTable, ++dirs_len);
 		else
-			lua_rawseti(l, filesTable, (int)lua_rawlen(l, filesTable) + 1);
+			lua_rawseti(l, filesTable, ++files_len);
 	}
 
 	return 2;