osom_lib_try_clone/
impls.rs

1use core::{convert::Infallible, marker::PhantomData, mem::MaybeUninit};
2
3use super::TryClone;
4
5macro_rules! try_clone_copy_impl {
6    ($($t:ty),*) => {
7        $(
8            impl TryClone for $t {
9                type Error = Infallible;
10                #[inline(always)]
11                fn try_clone(&self) -> Result<Self, Self::Error> {
12                    Ok(*self)
13                }
14            }
15        )*
16    };
17}
18
19try_clone_copy_impl!(
20    bool,
21    u8,
22    u16,
23    u32,
24    u64,
25    u128,
26    i8,
27    i16,
28    i32,
29    i64,
30    i128,
31    f32,
32    f64,
33    (),
34    char,
35    usize,
36    isize
37);
38
39impl<T: TryClone> TryClone for Option<T> {
40    type Error = <T as TryClone>::Error;
41
42    fn try_clone(&self) -> Result<Self, Self::Error> {
43        match self {
44            Some(value) => Ok(Some(value.try_clone()?)),
45            None => Ok(None),
46        }
47    }
48}
49
50impl<const N: usize, T: TryClone> TryClone for [T; N] {
51    type Error = <T as TryClone>::Error;
52
53    fn try_clone(&self) -> Result<Self, Self::Error> {
54        let mut result = MaybeUninit::<[T; N]>::uninit();
55        unsafe {
56            let mut ptr = result.as_mut_ptr().cast::<T>();
57            for value in self {
58                ptr.write(value.try_clone()?);
59                ptr = ptr.add(1);
60            }
61            Ok(result.assume_init())
62        }
63    }
64}
65
66impl<T: TryClone> TryClone for PhantomData<T> {
67    type Error = Infallible;
68
69    fn try_clone(&self) -> Result<Self, Self::Error> {
70        Ok(PhantomData)
71    }
72}
osom_lib_try_clone/impls.rs

osom_lib_try_clone/
impls.rs
