Function luaL_setfuncs

3rd/lua-5.4.3/src/lauxlib.c:926–940

** set functions from list 'l' into table at top - 'nup'; each ** function gets the 'nup' elements at the top as upvalues. ** Returns with only the table at the stack. */

** Returns with only the table at the stack.
*/
LUALIB_API void luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup) {
  luaL_checkstack(L, nup, "too many upvalues");
  for (; l->name != NULL; l++) {  /* fill the table with given functions */
    if (l->func == NULL)  /* place holder? */
      lua_pushboolean(L, 0);
    else {
      int i;
      for (i = 0; i < nup; i++)  /* copy upvalues to the top */
        lua_pushvalue(L, -nup);
      lua_pushcclosure(L, l->func, nup);  /* closure with those upvalues */
    }
    lua_setfield(L, -(nup + 2), l->name);
  }
  lua_pop(L, nup);  /* remove upvalues */
}


/*