203 pub struct ScopeGuard<T, F: FnOnce(T)>(Option<(T, F)>);
205 impl<T, F: FnOnce(T)> ScopeGuard<T, F> {
207     pub fn new_with_data(data: T, cleanup_func: F) -> Self {  in new_with_data()  argument
213     pub fn dismiss(mut self) -> T {  in dismiss()  argument
227 impl<T, F: FnOnce(T)> Deref for ScopeGuard<T, F> {
228     type Target = T;
230     fn deref(&self) -> &T {  in deref()  argument
236 impl<T, F: FnOnce(T)> DerefMut for ScopeGuard<T, F> {
237     fn deref_mut(&mut self) -> &mut T {  in deref_mut()  argument
243 impl<T, F: FnOnce(T)> Drop for ScopeGuard<T, F> {
307 pub struct Opaque<T> {
308     value: UnsafeCell<MaybeUninit<T>>,
313 unsafe impl<T> Zeroable for Opaque<T> {}
315 impl<T> Opaque<T> {
317     pub const fn new(value: T) -> Self {  in new()
333     pub fn pin_init(slot: impl PinInit<T>) -> impl PinInit<Self> {  in pin_init()
334         Self::ffi_init(|ptr: *mut T| {  in pin_init()
339             let _ = unsafe { PinInit::<T>::__pinned_init(slot, ptr) };  in pin_init()
351     pub fn ffi_init(init_func: impl FnOnce(*mut T)) -> impl PinInit<Self> {  in ffi_init()
371         init_func: impl FnOnce(*mut T) -> Result<(), E>,  in try_ffi_init()
381     pub const fn get(&self) -> *mut T {  in get()  argument
382         UnsafeCell::get(&self.value).cast::<T>()  in get()
389     pub const fn raw_get(this: *const Self) -> *mut T {  in raw_get()  argument
390         UnsafeCell::raw_get(this.cast::<UnsafeCell<MaybeUninit<T>>>()).cast::<T>()  in raw_get()
440 pub struct ARef<T: AlwaysRefCounted> {
441     ptr: NonNull<T>,
442     _p: PhantomData<T>,
449 unsafe impl<T: AlwaysRefCounted + Sync + Send> Send for ARef<T> {}
456 unsafe impl<T: AlwaysRefCounted + Sync + Send> Sync for ARef<T> {}
458 impl<T: AlwaysRefCounted> ARef<T> {
469     pub unsafe fn from_raw(ptr: NonNull<T>) -> Self {  in from_raw()
505     pub fn into_raw(me: Self) -> NonNull<T> {  in into_raw()  argument
510 impl<T: AlwaysRefCounted> Clone for ARef<T> {
518 impl<T: AlwaysRefCounted> Deref for ARef<T> {
519     type Target = T;
527 impl<T: AlwaysRefCounted> From<&T> for ARef<T> {
528     fn from(b: &T) -> Self {  in from()
535 impl<T: AlwaysRefCounted> Drop for ARef<T> {
539         unsafe { T::dec_ref(self.ptr) };  in drop()