queen_core/wire_protocol/
error.rs

1use std::io;
2use std::result;
3use std::fmt;
4use std::error;
5use std::string;
6
7pub type Result<T> = result::Result<T, Error>;
8
9#[derive(Debug)]
10pub enum Error {
11    IoError(io::Error),
12    ResponseError(String),
13    FromUtf8Error(string::FromUtf8Error),
14}
15
16impl<'a> From<Error> for io::Error {
17    fn from(err: Error) -> io::Error {
18        io::Error::new(io::ErrorKind::Other, err)
19    }
20}
21
22impl From<io::Error> for Error {
23    fn from(err: io::Error) -> Error {
24        Error::IoError(err)
25    }
26}
27
28impl From<string::FromUtf8Error> for Error {
29    fn from(err: string::FromUtf8Error) -> Error {
30        Error::FromUtf8Error(err)
31    }
32}
33
34impl fmt::Display for Error {
35    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
36        match *self {
37            Error::IoError(ref inner) => inner.fmt(fmt),
38            Error::ResponseError(ref inner) => inner.fmt(fmt),
39            Error::FromUtf8Error(ref inner) => inner.fmt(fmt)
40        }
41    }
42}
43
44impl error::Error for Error {
45    fn description(&self) -> &str {
46        match *self {
47            Error::IoError(ref inner) => inner.description(),
48            Error::ResponseError(ref inner) => inner,
49            Error::FromUtf8Error(ref inner) => inner.description()
50        }
51    }
52
53    fn cause(&self) -> Option<&error::Error> {
54        match *self {
55            Error::IoError(ref inner) => Some(inner),
56            Error::ResponseError(_) => None,
57            Error::FromUtf8Error(ref inner) => Some(inner)
58        }
59    }
60}
queen_core/wire_protocol/error.rs

queen_core/wire_protocol/
error.rs
