1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

use serde::{ser, de};
use std::{self, error, io, str, string};
use std::fmt::{self, Display};

#[derive(Debug)]
pub struct Error {
    msg: String,
}

pub type Result<T> = std::result::Result<T, Error>;

impl Error {
    pub fn new<T: Display>(msg: T) -> Self {
        Error { msg: msg.to_string() }
    }
}

impl error::Error for Error {
    fn description(&self) -> &str {
        &self.msg
    }
}

impl Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str(&self.msg)
    }
}

impl ser::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::new(msg)
    }
}

impl de::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::new(msg)
    }
}

impl From<io::Error> for Error {
    fn from(err: io::Error) -> Self {
        Error::new(err)
    }
}

impl From<str::Utf8Error> for Error {
    fn from(err: str::Utf8Error) -> Self {
        Error::new(err)
    }
}

impl From<string::FromUtf8Error> for Error {
    fn from(err: string::FromUtf8Error) -> Self {
        Error::new(err)
    }
}