44 lines
937 B
Rust
44 lines
937 B
Rust
#![allow(dead_code)]
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use std::fmt;
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use std::marker::PhantomData;
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use std::ops::Deref;
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pub struct Unique<T: ?Sized> {
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pointer: *const T,
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_marker: PhantomData<T>,
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}
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unsafe impl<T: Send + ?Sized> Send for Unique<T> {}
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unsafe impl<T: Sync + ?Sized> Sync for Unique<T> {}
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impl<T: ?Sized> Unique<T> {
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pub unsafe fn new(ptr: *mut T) -> Unique<T> {
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Unique {
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pointer: ptr,
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_marker: PhantomData,
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}
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}
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pub unsafe fn get(&self) -> &T {
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&*self.pointer
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}
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pub unsafe fn get_mut(&mut self) -> &mut T {
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&mut ***self
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}
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}
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impl<T: ?Sized> Deref for Unique<T> {
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type Target = *mut T;
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#[inline]
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fn deref(&self) -> &*mut T {
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unsafe { &*(&self.pointer as *const *const T as *const *mut T) }
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}
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}
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impl<T> fmt::Pointer for Unique<T> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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fmt::Pointer::fmt(&self.pointer, f)
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}
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}
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