errore 0.4.1

Library for error handling and tracing
Documentation 
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92

use errore::prelude::*;

mod a {
    use super::*;

    #[derive(Error, Debug)]
    pub enum EnumDebugGeneric<T>
    where
        T: std::error::Error + 'static + Send + Sync,
    {
        #[error("{0:?}")]
        FatalError(T),
    }
}

mod b {
    use super::*;

    #[derive(Error, Debug)]
    pub enum EnumFromGeneric {
        #[error("enum from generic")]
        Source(#[from] a::Ec<std::io::Error>),
    }
}

mod c {
    use super::*;

    #[derive(Error, Debug)]
    pub enum EnumDisplay<T>
    where
        T: std::error::Error + 'static + Send + Sync,
    {
        #[error("{0} {0:?}")]
        DisplayDebug(T),
    }
}

#[test]
fn test_display_enum_compound() {
    #[derive(Debug)]
    pub struct DebugAndDisplay;

    impl std::fmt::Display for DebugAndDisplay {
        fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
            f.write_str("debug and display")
        }
    }

    impl std::error::Error for DebugAndDisplay {}

    let instance: c::EnumDisplay<DebugAndDisplay>;

    instance = c::EnumDisplay::DisplayDebug(DebugAndDisplay);
    assert_eq!(format!("{}", instance), "debug and display DebugAndDisplay");
}

mod d {
    use super::*;

    #[derive(Error, Debug)]
    pub enum EnumTransparentGeneric<T>
    where
        T: std::error::Error + 'static + Send + Sync,
    {
        #[error(transparent)]
        Other(T),
    }
}

mod e {
    use super::*;

    #[derive(Error, Debug)]
    #[error("{underlying:?}")]
    pub struct StructDebugGeneric<T>
    where
        T: std::error::Error + 'static + Send + Sync,
    {
        pub underlying: T,
    }
}

mod f {
    use super::*;

    #[derive(Error, Debug)]
    #[error(transparent)]
    pub struct StructTransparentGeneric<T>(pub T)
    where
        T: std::error::Error + 'static + Send + Sync;
}