1use core::{mem::MaybeUninit, ops::{Deref, DerefMut}};
2
3use zeroize::ZeroizeOnDrop;
4
5
6pub struct ForcedZeroizing<T>(MaybeUninit<T>);
7
8impl<T> ForcedZeroizing<T> {
9 #[inline(always)] pub const fn new(val: T) -> Self {
10 Self(MaybeUninit::new(val))
11 }
12}
13
14impl<T> Deref for ForcedZeroizing<T> {
15 type Target = T;
16
17 fn deref(&self) -> &Self::Target {
18 unsafe { self.0.assume_init_ref() }
19 }
20}
21
22impl<T> DerefMut for ForcedZeroizing<T> {
23 fn deref_mut(&mut self) -> &mut Self::Target {
24 unsafe { self.0.assume_init_mut() }
25 }
26}
27
28impl<T> Drop for ForcedZeroizing<T> {
29 fn drop(&mut self) {
30 unsafe {
31 self.0.assume_init_drop();
32 core::ptr::write_volatile(&mut self.0, MaybeUninit::zeroed());
33 }
34 }
35}
36
37impl<T> ZeroizeOnDrop for ForcedZeroizing<T> {}
38