mailin_embedded/
err.rs

1use std::error;
2use std::fmt;
3use std::io;
4
5/// All crate errors are wrapped in this custom error type
6#[derive(Debug)]
7pub struct Error {
8    original: Option<Box<dyn error::Error>>,
9    msg: String,
10}
11
12impl Error {
13    pub(crate) fn new<S>(msg: S) -> Self
14    where
15        S: Into<String>,
16    {
17        Self {
18            original: None,
19            msg: msg.into(),
20        }
21    }
22
23    pub(crate) fn with_source<S, E>(msg: S, source: E) -> Self
24    where
25        S: Into<String>,
26        E: error::Error + 'static,
27    {
28        Self {
29            original: Some(Box::new(source)),
30            msg: msg.into(),
31        }
32    }
33
34    pub(crate) fn bail<T, S>(msg: S) -> Result<T, Self>
35    where
36        S: Into<String>,
37    {
38        Err(Error::new(msg))
39    }
40}
41
42impl fmt::Display for Error {
43    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
44        write!(f, "{}", self.msg)
45    }
46}
47
48impl From<io::Error> for Error {
49    fn from(error: io::Error) -> Self {
50        let msg = error.to_string();
51        Self {
52            original: Some(Box::new(error)),
53            msg,
54        }
55    }
56}
57
58impl error::Error for Error {
59    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
60        self.original.as_ref().map(|o| o.as_ref())
61    }
62}
mailin_embedded/err.rs

mailin_embedded/
err.rs
