lerc_core/
error.rs

1use std::fmt;
2
3pub type Result<T> = std::result::Result<T, Error>;
4
5#[derive(Debug, Clone, PartialEq)]
6pub enum Error {
7    Truncated {
8        offset: usize,
9        needed: usize,
10        available: usize,
11    },
12    OutputTooSmall {
13        needed: usize,
14        available: usize,
15    },
16    InvalidMagic,
17    UnsupportedVersion(u32),
18    UnsupportedFeature(&'static str),
19    InvalidHeader(&'static str),
20    InvalidArgument(String),
21    InvalidBlob(String),
22    ChecksumMismatch {
23        expected: u32,
24        actual: u32,
25    },
26}
27
28impl fmt::Display for Error {
29    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
30        match self {
31            Self::Truncated {
32                offset,
33                needed,
34                available,
35            } => write!(
36                f,
37                "truncated input at offset {offset}: need {needed} bytes, have {available}"
38            ),
39            Self::OutputTooSmall { needed, available } => write!(
40                f,
41                "output buffer too small: need {needed} bytes, have {available}"
42            ),
43            Self::InvalidMagic => write!(f, "invalid LERC magic"),
44            Self::UnsupportedVersion(version) => {
45                write!(f, "unsupported LERC version {version}")
46            }
47            Self::UnsupportedFeature(feature) => write!(f, "unsupported LERC feature: {feature}"),
48            Self::InvalidHeader(reason) => write!(f, "invalid LERC header: {reason}"),
49            Self::InvalidArgument(reason) => write!(f, "invalid argument: {reason}"),
50            Self::InvalidBlob(reason) => write!(f, "invalid LERC blob: {reason}"),
51            Self::ChecksumMismatch { expected, actual } => {
52                write!(
53                    f,
54                    "LERC checksum mismatch: expected {expected:#010x}, got {actual:#010x}"
55                )
56            }
57        }
58    }
59}
60
61impl std::error::Error for Error {}
lerc_core/error.rs

lerc_core/
error.rs
