Function varerror

extlibs/lua/src/lfunc.c:130–135

** Raise an error with message 'msg', inserting the name of the ** local variable at position 'level' in the stack. */

** local variable at position 'level' in the stack.
*/
static void varerror (lua_State *L, StkId level, const char *msg) {
  int idx = cast_int(level - L->ci->func);
  const char *vname = luaG_findlocal(L, L->ci, idx, NULL);
  if (vname == NULL) vname = "?";
  luaG_runerror(L, msg, vname);
}


/*