blob: b6c3bb222876d8a8159b94423a62d09f58539783 (
plain)
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
|
// check-pass
pub trait ResultExt {
type Ok;
fn err_eprint_and_ignore(self) -> Option<Self::Ok>;
}
impl<O, E> ResultExt for std::result::Result<O, E>
where
E: std::error::Error,
{
type Ok = O;
fn err_eprint_and_ignore(self) -> Option<O>
where
Self: ,
{
match self {
Err(e) => {
eprintln!("{}", e);
None
}
Ok(o) => Some(o),
}
}
}
fn main() {}
|
