};
    ($err:expr,) => {
        $crate::bail!($err);

    ($e:expr)   => { $crate::Error::new_adhoc($e) };
    ($($arg:tt)*) => { $crate::Error::new_adhoc(format!($($arg)*)) };

    ($msg:expr) => {
        $crate::Error::new_adhoc($msg)
    };
    ($msg:expr,) => {
        $crate::anyhow!($msg)
    };
    ($fmt:expr, $($arg:tt)*) => {
        $crate::Error::new_adhoc(format!($fmt, $($arg)*))
    };