bzip2_rs/header/
error.rs

1use std::error::Error as StdError;
2use std::fmt::{self, Display, Formatter};
3use std::io;
4
5/// An error returned by [`Header`]
6///
7/// [`Header`]: crate::header::Header
8#[derive(Debug, Clone, PartialEq)]
9pub enum HeaderError {
10    /// The file signature isn't valid (should be `BZ`)
11    InvalidSignature,
12    /// The bzip2 version isn't supported (only the huffman version is supported)
13    UnsupportedVersion,
14    /// The blocksize isn't `1..=9`
15    InvalidBlockSize,
16}
17
18impl Display for HeaderError {
19    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
20        f.write_str(match self {
21            HeaderError::InvalidSignature => "invalid file signature",
22            HeaderError::UnsupportedVersion => "unsupported bzip2 version",
23            HeaderError::InvalidBlockSize => "invalid block-size",
24        })
25    }
26}
27
28impl StdError for HeaderError {}
29
30impl From<HeaderError> for io::Error {
31    fn from(err: HeaderError) -> io::Error {
32        io::Error::new(io::ErrorKind::InvalidData, err)
33    }
34}
bzip2_rs/header/error.rs

bzip2_rs/header/
error.rs
