spectacles_gateway/
errors.rs

1use std::{
2    error::Error as StdError,
3    fmt::{Display, Formatter, Result as FmtResult},
4    io::Error as IoError,
5    result::Result as StdResult,
6};
7
8use futures::sync::mpsc::SendError;
9use reqwest::Error as ReqwestError;
10use serde_json::Error as JsonError;
11use tokio::timer::Error as TimerError;
12use tokio_tungstenite::tungstenite::{
13    Error as TungsteniteError,
14    Message as TungsteniteMessage
15};
16
17/// A modified result type which encompasses the global error type.
18pub type Result<T> = StdResult<T, Error>;
19
20/// Represents a global error which can occur throughout the library.
21#[derive(Debug)]
22pub enum Error {
23    Tungstenite(TungsteniteError),
24    Json(JsonError),
25    Reqwest(ReqwestError),
26    Timer(TimerError),
27    InvalidTokenError,
28    Io(IoError),
29    TungsteniteSend(SendError<TungsteniteMessage>)
30}
31
32impl Display for Error {
33    fn fmt(&self, f: &mut Formatter) -> FmtResult {
34        f.write_str(self.description())
35    }
36}
37
38impl StdError for Error {
39    fn description(&self) -> &str {
40        match self {
41            Error::Reqwest(e) => e.description(),
42            Error::Timer(e) => e.description(),
43            Error::Tungstenite(e) => e.description(),
44            Error::Io(e) => e.description(),
45            Error::TungsteniteSend(e) => e.description(),
46            Error::Json(e) => e.description(),
47            Error::InvalidTokenError =>
48                "The token provided was not accepted by Discord. Please check that your token is correct and try again."
49        }
50    }
51}
52
53impl From<TungsteniteError> for Error {
54    fn from(err: TungsteniteError) -> Self {
55        Error::Tungstenite(err)
56    }
57}
58
59impl From<IoError> for Error {
60    fn from(err: IoError) -> Self {
61        Error::Io(err)
62    }
63}
64
65impl From<TimerError> for Error {
66    fn from(err: TimerError) -> Self {
67        Error::Timer(err)
68    }
69}
70impl From<ReqwestError> for Error {
71    fn from(err: ReqwestError) -> Self {
72        if let Some(t) = err.status() {
73            match t.as_u16() {
74                401 => Error::InvalidTokenError,
75                _ => Error::Reqwest(err)
76            }
77        } else {
78            Error::Reqwest(err)
79        }
80    }
81}
82
83impl From<SendError<TungsteniteMessage>> for Error {
84    fn from(err: SendError<TungsteniteMessage>) -> Self {
85        Error::TungsteniteSend(err)
86    }
87}
88
89impl From<JsonError> for Error {
90    fn from(err: JsonError) -> Self {
91        Error::Json(err)
92    }
93}
spectacles_gateway/errors.rs

spectacles_gateway/
errors.rs
