simd_csv/
error.rs

1use std::{error, fmt, io, result};
2
3#[derive(Debug)]
4pub enum ErrorKind {
5    Io(io::Error),
6    UnequalLengths {
7        expected_len: usize,
8        len: usize,
9        pos: Option<(u64, u64)>,
10    },
11    OutOfBounds {
12        pos: u64,
13        start: u64,
14        end: u64,
15    },
16}
17
18#[derive(Debug)]
19pub struct Error(ErrorKind);
20
21impl Error {
22    pub fn new(kind: ErrorKind) -> Self {
23        Self(kind)
24    }
25
26    pub fn is_io_error(&self) -> bool {
27        matches!(self.0, ErrorKind::Io(_))
28    }
29
30    pub fn kind(&self) -> &ErrorKind {
31        &self.0
32    }
33
34    pub fn into_kind(self) -> ErrorKind {
35        self.0
36    }
37}
38
39impl From<io::Error> for Error {
40    fn from(err: io::Error) -> Self {
41        Self(ErrorKind::Io(err))
42    }
43}
44
45impl From<Error> for io::Error {
46    fn from(err: Error) -> Self {
47        Self::new(io::ErrorKind::Other, err)
48    }
49}
50
51impl error::Error for Error {}
52
53impl fmt::Display for Error {
54    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
55        match self.0 {
56            ErrorKind::Io(ref err) => err.fmt(f),
57            ErrorKind::UnequalLengths {
58                expected_len,
59                len,
60                pos: Some((byte, index))
61            } => write!(
62                f,
63                "CSV error: record {} (byte: {}): found record with {} fields, but the previous record has {} fields",
64                index, byte, len, expected_len
65            ),
66             ErrorKind::UnequalLengths {
67                expected_len,
68                len,
69                pos: None
70            } => write!(
71                f,
72                "CSV error: found record with {} fields, but the previous record has {} fields",
73                len, expected_len
74            ),
75            ErrorKind::OutOfBounds { pos, start, end } => {
76                write!(f, "pos {} is out of bounds (should be >= {} and < {})", pos, start, end)
77            }
78        }
79    }
80}
81
82pub type Result<T> = result::Result<T, Error>;
simd_csv/error.rs

simd_csv/
error.rs
