1 #[derive(Debug)] 2 pub(crate) struct UnsafeCell<T>(std::cell::UnsafeCell<T>); 3 4 impl<T> UnsafeCell<T> { new(data: T) -> UnsafeCell<T>5 pub(crate) const fn new(data: T) -> UnsafeCell<T> { 6 UnsafeCell(std::cell::UnsafeCell::new(data)) 7 } 8 9 #[inline(always)] with<R>(&self, f: impl FnOnce(*const T) -> R) -> R10 pub(crate) fn with<R>(&self, f: impl FnOnce(*const T) -> R) -> R { 11 f(self.0.get()) 12 } 13 14 #[inline(always)] with_mut<R>(&self, f: impl FnOnce(*mut T) -> R) -> R15 pub(crate) fn with_mut<R>(&self, f: impl FnOnce(*mut T) -> R) -> R { 16 f(self.0.get()) 17 } 18 } 19