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
|
use std::any::Any;
use std::fmt;
/// Task failed to execute to completion.
pub struct Error {
repr: Repr,
}
enum Repr {
Cancelled,
Panic(Box<dyn Any + Send + 'static>),
}
impl Error {
/// Create a new `cancelled` error
pub fn cancelled() -> Error {
Error {
repr: Repr::Cancelled,
}
}
/// Create a new `panic` error
pub fn panic(err: Box<dyn Any + Send + 'static>) -> Error {
Error {
repr: Repr::Panic(err),
}
}
}
impl fmt::Display for Error {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
match &self.repr {
Repr::Cancelled => write!(fmt, "cancelled"),
Repr::Panic(_) => write!(fmt, "panic"),
}
}
}
impl fmt::Debug for Error {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
match &self.repr {
Repr::Cancelled => write!(fmt, "task::Error::Cancelled"),
Repr::Panic(_) => write!(fmt, "task::Error::Panic(...)"),
}
}
}
impl std::error::Error for Error {}
|
