openssh_sftp_protocol/
handle.rs

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
use std::{
    borrow::{Borrow, ToOwned},
    convert::AsRef,
    ops::Deref,
};

use vec_strings::SmallArrayBox;

#[derive(Debug, Clone)]
#[repr(transparent)]
pub struct HandleOwned(pub(crate) SmallArrayBox<u8, 4>);

impl Deref for HandleOwned {
    type Target = Handle;

    fn deref(&self) -> &Self::Target {
        unsafe { &*(self.0.deref() as *const [u8] as *const Handle) }
    }
}

impl Borrow<Handle> for HandleOwned {
    fn borrow(&self) -> &Handle {
        self.deref()
    }
}

impl AsRef<Handle> for HandleOwned {
    fn as_ref(&self) -> &Handle {
        self.deref()
    }
}

#[derive(Debug, Eq, PartialEq, serde::Serialize)]
#[repr(transparent)]
pub struct Handle([u8]);

impl Handle {
    pub const fn into_inner(&self) -> &[u8] {
        &self.0
    }
}

impl ToOwned for Handle {
    type Owned = HandleOwned;

    fn to_owned(&self) -> Self::Owned {
        HandleOwned(SmallArrayBox::new(self.into_inner().iter().copied()))
    }
}