opengraph_rs/
error.rs

1use std::fmt::{Display, Formatter, Result as FmtResult};
2use std::error;
3#[cfg(feature = "reqwest")]
4use reqwest;
5
6#[derive(Debug)]
7pub enum Error {
8    #[cfg(feature = "reqwest")]
9    NetworkError(reqwest::Error),
10    Unexpected,
11}
12
13impl Display for Error {
14    fn fmt(&self, f: &mut Formatter) -> FmtResult {
15        match *self {
16            #[cfg(feature = "reqwest")]
17            Error::NetworkError(ref e)   => write!(f, "NetworkError:  {}", e),
18            Error::Unexpected            => write!(f, "UnexpectedError"),
19        }
20    }
21}
22
23#[cfg(feature = "reqwest")]
24impl From<reqwest::Error> for Error {
25    fn from(err: reqwest::Error) -> Error {
26        Error::NetworkError(err)
27    }
28}
29
30impl error::Error for Error {
31    fn description(&self) -> &str { "" }
32}