gob/
error.rs

1use std::fmt;
2use std::io;
3
4#[derive(Debug, Clone, Copy, PartialEq, Eq)]
5pub enum ErrorKind {
6    Io(io::ErrorKind),
7    Serialize,
8    Deserialize,
9}
10
11#[derive(Debug)]
12pub struct Error {
13    kind: ErrorKind,
14    inner: ErrorInner,
15}
16
17#[derive(Debug)]
18enum ErrorInner {
19    Io(io::Error),
20    Other(String),
21}
22
23impl Error {
24    pub(crate) fn deserialize<S: Into<String>>(message: S) -> Error {
25        Error {
26            kind: ErrorKind::Deserialize,
27            inner: ErrorInner::Other(message.into()),
28        }
29    }
30
31    pub fn kind(&self) -> ErrorKind {
32        self.kind
33    }
34}
35
36impl fmt::Display for Error {
37    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
38        match self.inner {
39            ErrorInner::Io(ref err) => write!(f, "i/o error: {}", err),
40            ErrorInner::Other(ref msg) => {
41                write!(f, "{}: {}", ::std::error::Error::description(self), msg)
42            }
43        }
44    }
45}
46
47impl ::std::error::Error for Error {
48    fn description(&self) -> &str {
49        match self.kind {
50            ErrorKind::Io(_) => "i/o error",
51            ErrorKind::Serialize => "serialize error",
52            ErrorKind::Deserialize => "deserialize error",
53        }
54    }
55}
56
57impl ::serde::de::Error for Error {
58    fn custom<T: fmt::Display>(msg: T) -> Error {
59        Error {
60            kind: ErrorKind::Deserialize,
61            inner: ErrorInner::Other(msg.to_string()),
62        }
63    }
64}
65
66impl ::serde::ser::Error for Error {
67    fn custom<T: fmt::Display>(msg: T) -> Error {
68        Error {
69            kind: ErrorKind::Serialize,
70            inner: ErrorInner::Other(msg.to_string()),
71        }
72    }
73}
74
75impl From<io::Error> for Error {
76    fn from(err: io::Error) -> Error {
77        Error {
78            kind: ErrorKind::Io(err.kind()),
79            inner: ErrorInner::Io(err),
80        }
81    }
82}
gob/error.rs

gob/
error.rs
