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
59
60
61
62

use std::error::Error;
use std::fmt;
use std::io;

#[derive(Debug)]
pub enum AcariError {
  IO(io::Error),
  Time(std::time::SystemTimeError),
  DateFormat(chrono::format::ParseError),
  Request(reqwest::Error),
  Json(serde_json::Error),
  Url(url::ParseError),
  Mite(u16, String),
  UserError(String),
  InternalError(String),
}

impl fmt::Display for AcariError {
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    match self {
      AcariError::IO(err) => write!(f, "IO error: {}", err),
      AcariError::Time(err) => write!(f, "Time error: {}", err),
      AcariError::DateFormat(err) => write!(f, "Date format error: {}", err),
      AcariError::Request(err) => write!(f, "Request error: {}", err),
      AcariError::Json(err) => write!(f, "Json error: {}", err),
      AcariError::Url(err) => write!(f, "Url error: {}", err),
      AcariError::Mite(status, error) => write!(f, "Mite error ({}): {}", status, error),
      AcariError::UserError(s) => write!(f, "User error: {}", s),
      AcariError::InternalError(s) => write!(f, "Internal error: {}", s),
    }
  }
}

impl Error for AcariError {
  fn source(&self) -> Option<&(dyn Error + 'static)> {
    match self {
      AcariError::IO(err) => Some(err),
      AcariError::Time(err) => Some(err),
      AcariError::DateFormat(err) => Some(err),
      AcariError::Request(err) => Some(err),
      AcariError::Json(err) => Some(err),
      _ => None,
    }
  }
}

macro_rules! acari_error_from {
  ($error: ty, $app_error: ident) => {
    impl From<$error> for AcariError {
      fn from(err: $error) -> AcariError {
        AcariError::$app_error(err)
      }
    }
  };
}

acari_error_from!(io::Error, IO);
acari_error_from!(std::time::SystemTimeError, Time);
acari_error_from!(serde_json::Error, Json);
acari_error_from!(url::ParseError, Url);
acari_error_from!(chrono::format::ParseError, DateFormat);
acari_error_from!(reqwest::Error, Request);