## FileDescriptionRef

# Struct FileDescriptionRef

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    #[repr(transparent)]pub struct FileDescriptionRef<T: ?Sized>(Rc<FdIdWith<T>>);

Expand description

A refcounted pointer to a file description, also tracking the globally unique ID of this file description.

## Tuple Fields§

§`0: Rc<FdIdWith<T>>`

## Implementations§

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### impl<T: ?Sized> FileDescriptionRef<T>

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#### pub fn id(&self) -> FdId

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### impl<T: ?Sized> FileDescriptionRef<T>

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#### pub fn downgrade(this: &Self) -> WeakFileDescriptionRef<T>

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### impl FileDescriptionRef<dyn FileDescription>

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#### pub fn downcast<T: FileDescription + 'static>( self, ) -> Option<FileDescriptionRef<T>>

## Trait Implementations§

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### impl<T: ?Sized> Clone for FileDescriptionRef<T>

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#### fn clone(&self) -> Self

Returns a duplicate of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl<T: Debug + ?Sized> Debug for FileDescriptionRef<T>

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#### fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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### impl<T: ?Sized> Deref for FileDescriptionRef<T>

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#### type Target = T

The resulting type after dereferencing.
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#### fn deref(&self) -> &T

Dereferences the value.
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### impl<T: ?Sized + Unsize<__S>, __S: ?Sized> CoerceUnsized<FileDescriptionRef<__S>> for FileDescriptionRef<T>

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### impl<T: ?Sized + Unsize<__S>, __S: ?Sized> DispatchFromDyn<FileDescriptionRef<__S>> for FileDescriptionRef<T>

## Auto Trait Implementations§

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### impl<T> Freeze for FileDescriptionRef<T>
where T: ?Sized,

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### impl<T> RefUnwindSafe for FileDescriptionRef<T>
where T: RefUnwindSafe + ?Sized,

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### impl<T> !Send for FileDescriptionRef<T>

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### impl<T> !Sync for FileDescriptionRef<T>

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### impl<T> Unpin for FileDescriptionRef<T>
where T: ?Sized,

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### impl<T> UnwindSafe for FileDescriptionRef<T>
where T: RefUnwindSafe + ?Sized,

## Blanket Implementations§

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### impl<T> Any for T
where T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for T
where T: ?Sized,

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#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for T
where T: ?Sized,

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#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> CloneToUninit for T
where T: Clone,

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#### unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (`clone_to_uninit`)
Performs copy-assignment from `self` to `dest`. Read more
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### impl<T> From<T> for T

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#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T
where U: From<T>,

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#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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#### type Target = T

🔬This is a nightly-only experimental API. (`arbitrary_self_types`)
The target type on which the method may be called.
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### impl<T> Same for T

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#### type Output = T

Should always be `Self`
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### impl<T> ToOwned for T
where T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for T
where U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
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#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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### impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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#### fn vzip(self) -> V

## Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.