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macro_rules! cfg_codec {
    ($($item:item)*) => {
        $(
            #[cfg(feature = "codec")]
            #[cfg_attr(docsrs, doc(cfg(feature = "codec")))]
            $item
        )*
    }
}

macro_rules! cfg_compat {
    ($($item:item)*) => {
        $(
            #[cfg(feature = "compat")]
            #[cfg_attr(docsrs, doc(cfg(feature = "compat")))]
            $item
        )*
    }
}

macro_rules! cfg_net {
    ($($item:item)*) => {
        $(
            #[cfg(all(feature = "net", feature = "codec"))]
            #[cfg_attr(docsrs, doc(cfg(all(feature = "net", feature = "codec"))))]
            $item
        )*
    }
}

macro_rules! cfg_io {
    ($($item:item)*) => {
        $(
            #[cfg(feature = "io")]
            #[cfg_attr(docsrs, doc(cfg(feature = "io")))]
            $item
        )*
    }
}

cfg_io! {
    macro_rules! cfg_io_util {
        ($($item:item)*) => {
            $(
                #[cfg(feature = "io-util")]
                #[cfg_attr(docsrs, doc(cfg(feature = "io-util")))]
                $item
            )*
        }
    }
}

macro_rules! cfg_rt {
    ($($item:item)*) => {
        $(
            #[cfg(feature = "rt")]
            #[cfg_attr(docsrs, doc(cfg(feature = "rt")))]
            $item
        )*
    }
}

macro_rules! cfg_time {
    ($($item:item)*) => {
        $(
            #[cfg(feature = "time")]
            #[cfg_attr(docsrs, doc(cfg(feature = "time")))]
            $item
        )*
    }
}