noteuclid/ownref
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use more NonNull

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This commit is contained in:
numzero 2026-05-07 19:55:00 +03:00
parent 08c5bbd311
commit e0cd965f33
1 changed files with 5 additions and 5 deletions
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10
src/lib.rs
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@ -2,7 +2,7 @@ use std::{
marker::PhantomData,
mem::ManuallyDrop,
ops::{Deref, DerefMut},
ptr::{self, NonNull},
ptr::NonNull,
};
pub struct OwnRef<'a, T: ?Sized>(Option<NonNull<T>>, PhantomData<&'a mut T>);
@ -10,7 +10,7 @@ pub struct OwnRef<'a, T: ?Sized>(Option<NonNull<T>>, PhantomData<&'a mut T>);
impl<T: ?Sized> Drop for OwnRef<'_, T> {
fn drop(&mut self) {
let Some(p) = self.0 else { return };
unsafe { ptr::drop_in_place(p.as_ptr()) };
unsafe { p.drop_in_place() };
}
}
@ -28,14 +28,14 @@ impl<T: ?Sized> DerefMut for OwnRef<'_, T> {
}
impl<T: ?Sized> OwnRef<'_, T> {
pub unsafe fn new_unchecked(p: *mut T) -> Self {
Self(Some(NonNull::new(p).unwrap()), PhantomData)
pub unsafe fn new_unchecked(p: NonNull<T>) -> Self {
Self(Some(p), PhantomData)
}
}
impl<'a, T: ?Sized> OwnRef<'a, T> {
pub unsafe fn from_manually_drop(p: &'a mut ManuallyDrop<T>) -> Self {
unsafe { Self::new_unchecked(p.deref_mut() as *mut _) }
unsafe { Self::new_unchecked(p.deref_mut().into()) }
}
}