serde_resp/
error.rs

1use std;
2use std::fmt::{self, Display};
3
4use serde::{de, ser};
5use std::io;
6use std::io::ErrorKind;
7use std::string::FromUtf8Error;
8
9/// Result type used by the crate.
10pub type Result<T> = std::result::Result<T, Error>;
11
12/// Error type used by the crate.
13#[derive(Clone, Debug, PartialEq)]
14pub enum Error {
15    /// For custom errors by serde.
16    Message(String),
17    /// Unexpected EOF.
18    Eof,
19    /// Syntax error.
20    Syntax,
21    /// IO error.
22    Io(String),
23    /// Trying to convert non-utf-8 bytes to string.
24    FromUtf8(String),
25}
26
27impl ser::Error for Error {
28    fn custom<T: Display>(msg: T) -> Self {
29        Error::Message(msg.to_string())
30    }
31}
32
33impl de::Error for Error {
34    fn custom<T: Display>(msg: T) -> Self {
35        Error::Message(msg.to_string())
36    }
37}
38
39impl Display for Error {
40    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
41        match self {
42            Error::Message(msg) => formatter.write_str(msg),
43            Error::Eof => formatter.write_str("unexpected end of input"),
44            Error::Syntax => formatter.write_str(
45                "syntax error. possible error: invalid integer or type byte, missing CRLF.",
46            ),
47            Error::Io(e) => formatter.write_str(&format!("an IO error occurred: {}", e)),
48            Error::FromUtf8(e) => {
49                formatter.write_str(&format!("an string conversion error occurred: {}", e))
50            }
51        }
52    }
53}
54
55impl std::error::Error for Error {}
56
57impl From<io::Error> for Error {
58    fn from(e: io::Error) -> Self {
59        match e.kind() {
60            ErrorKind::UnexpectedEof => Error::Eof,
61            _ => Error::Io(format!("{:?}", e)),
62        }
63    }
64}
65
66/// This happens when to_string on non-utf8 bytes
67impl From<FromUtf8Error> for Error {
68    fn from(e: FromUtf8Error) -> Self {
69        Error::FromUtf8(format!("{:?}", e))
70    }
71}
serde_resp/error.rs

serde_resp/
error.rs
