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
use self::Error::*;
use std::error::Error as StdError;
use std::fmt::{self, Display, Formatter};
use std::io;
use lettre;
#[derive(Debug)]
pub enum Error {
Email(lettre::Error),
CannotParseFilename,
Io(io::Error),
}
impl Display for Error {
fn fmt(&self, fmt: &mut Formatter) -> Result<(), fmt::Error> {
fmt.write_str(self.description())
}
}
impl StdError for Error {
fn description(&self) -> &str {
match *self {
Email(ref err) => err.description(),
CannotParseFilename => "the attachment filename could not be parsed",
Io(ref err) => err.description(),
}
}
}
impl From<io::Error> for Error {
fn from(err: io::Error) -> Error {
Io(err)
}
}
impl From<lettre::Error> for Error {
fn from(err: lettre::Error) -> Error {
Email(err)
}
}