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

use super::*;

use std::{
    convert::From,
    boxed::Box,
    io,
};

#[derive(Debug)]
/// The error returned from send-like calls for the Middleman struct.
/// Most errors originate from other dependencies. This enum thus delegates
/// these cases, each to its own variant. In addition TooBigToRepresent is
/// returned when the user passes a structure whose representation requires a length-field
/// larger than std::u32::MAX, which the Middleman is not prepared to represent.
pub enum SendError {
    Io(io::Error),
    TooBigToRepresent,
    Bincode(Box<bincode::ErrorKind>),
}

/// This error is returned from recv-like calls for the Middleman struct.
/// Most errors originate from other dependencies. This enum thus delegates
/// these cases, each to its own variant.
#[derive(Debug)]
pub enum RecvError {
    Io(io::Error),
    Bincode(Box<bincode::ErrorKind>),
}

/////////////////////////////////////////////////////////

impl From<io::Error> for RecvError {
    fn from(e: io::Error) -> Self {
        RecvError::Io(e)
    }
}
impl From<io::Error> for SendError {
    fn from(e: io::Error) -> Self {
        SendError::Io(e)
    }
}
impl From<Box<bincode::ErrorKind>> for RecvError {
    fn from(e: Box<bincode::ErrorKind>) -> Self {
        RecvError::Bincode(e)
    }
}
impl From<Box<bincode::ErrorKind>> for SendError {
    fn from(e: Box<bincode::ErrorKind>) -> Self {
        SendError::Bincode(e)
    }
}