Function lua_isstring

third-party/lua-5.5.0/src/lapi.c:314–317

LUA_API int lua_isstring (lua_State *L, int idx) {
  const TValue *o = index2value(L, idx);
  return (ttisstring(o) || cvt2str(o));
}


LUA_API int lua_isuserdata (lua_State *L, int idx) {