Function cexpr::assert_full_parse

pub fn assert_full_parse<'i, I: 'i, O, E>(
    result: IResult<&'i [I], O, E>
) -> IResult<&'i [I], O, Error<&'i [I]>> where
    Error<&'i [I]>: From<E>, 

If the input result indicates a succesful parse, but there is data left, return an Error::Partial instead.