Function nom::tag_cl

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<F> Future for Box<F> where
    F: Unpin + Future + ?Sized,  type Output = <F as Future>::Output;impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

pub fn tag_cl<'a, 'b>(
    rec: &'a [u8]
) -> Box<dyn Fn(&'b [u8]) -> IResult<&'b [u8], &'b [u8]> + 'a>