shell_rs/
error.rs

1// Copyright (c) 2021 Xu Shaohua <shaohua@biofan.org>. All rights reserved.
2// Use of this source is governed by Apache-2.0 License that can be found
3// in the LICENSE file.
4
5use std::fmt::{self, Display};
6
7#[derive(Debug, Clone, Copy, PartialEq)]
8pub enum ErrorKind {
9    IoError,
10    ParameterError,
11    Utf8Error,
12    SyscallError,
13    InvalidArchError,
14    ParseNumError,
15
16    PwdError,
17    PwdGroupError,
18}
19
20#[derive(Debug, Clone, PartialEq)]
21pub struct Error {
22    pub kind: ErrorKind,
23    pub message: String,
24}
25
26impl Error {
27    pub fn new(kind: ErrorKind, message: &str) -> Self {
28        Error {
29            kind,
30            message: message.to_owned(),
31        }
32    }
33
34    pub fn from_string(kind: ErrorKind, message: String) -> Self {
35        Error { kind, message }
36    }
37}
38
39impl Display for Error {
40    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
41        write!(f, "{:?}: {}", self.kind, self.message)
42    }
43}
44
45impl std::error::Error for Error {}
46
47impl From<std::io::Error> for Error {
48    fn from(err: std::io::Error) -> Self {
49        Error::from_string(ErrorKind::IoError, format!("IoError {}", err))
50    }
51}
52
53impl From<std::string::FromUtf8Error> for Error {
54    fn from(err: std::string::FromUtf8Error) -> Self {
55        Error::from_string(ErrorKind::Utf8Error, format!("err: {}", err))
56    }
57}
58
59impl From<std::str::Utf8Error> for Error {
60    fn from(err: std::str::Utf8Error) -> Self {
61        Error::from_string(ErrorKind::Utf8Error, format!("err: {}", err))
62    }
63}
64
65impl From<std::ffi::IntoStringError> for Error {
66    fn from(err: std::ffi::IntoStringError) -> Self {
67        Error::from_string(ErrorKind::Utf8Error, format!("err: {}", err))
68    }
69}
70
71impl From<std::num::ParseIntError> for Error {
72    fn from(err: std::num::ParseIntError) -> Self {
73        Error::from_string(ErrorKind::ParseNumError, format!("err: {}", err))
74    }
75}
76
77impl From<std::num::ParseFloatError> for Error {
78    fn from(err: std::num::ParseFloatError) -> Self {
79        Error::from_string(ErrorKind::ParseNumError, format!("err: {}", err))
80    }
81}
82
83impl From<nc::Errno> for Error {
84    fn from(errno: nc::Errno) -> Self {
85        Error::from_string(
86            ErrorKind::SyscallError,
87            format!("error: {:?}", nc::strerror(errno)),
88        )
89    }
90}
shell_rs/error.rs

shell_rs/
error.rs
