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    InvalidMagic,
13    UnsupportedVersion(u32),
14    UnsupportedFeature(&'static str),
15    InvalidHeader(&'static str),
16    InvalidBlob(String),
17    ChecksumMismatch {
18        expected: u32,
19        actual: u32,
20    },
21}
22
23impl fmt::Display for Error {
24    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
25        match self {
26            Self::Truncated {
27                offset,
28                needed,
29                available,
30            } => write!(
31                f,
32                "truncated input at offset {offset}: need {needed} bytes, have {available}"
33            ),
34            Self::InvalidMagic => write!(f, "invalid LERC magic"),
35            Self::UnsupportedVersion(version) => {
36                write!(f, "unsupported LERC version {version}")
37            }
38            Self::UnsupportedFeature(feature) => write!(f, "unsupported LERC feature: {feature}"),
39            Self::InvalidHeader(reason) => write!(f, "invalid LERC header: {reason}"),
40            Self::InvalidBlob(reason) => write!(f, "invalid LERC blob: {reason}"),
41            Self::ChecksumMismatch { expected, actual } => {
42                write!(
43                    f,
44                    "LERC checksum mismatch: expected {expected:#010x}, got {actual:#010x}"
45                )
46            }
47        }
48    }
49}
50
51impl std::error::Error for Error {}
lerc_core/error.rs

lerc_core/
error.rs
