ICoWWeakRead

instance_copy_on_write::cow_mutex

Struct ICoWWeakRead 

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pub struct ICoWWeakRead<'weak, ITEM: Sized>(/* private fields */);
Expand description

An instance emmited by the ICoWWeak::aquire which allows to read the item for a 'weak period of time.

§Fields

  • 0 - the reference to the stored inner value (read only).

  • 1 - the flag which indicates that the 0 was reloaded or not.

  • 2 - phantom to prevent Send.

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impl<'weak, ITEM: Sized + Debug> ICoWWeakRead<'weak, ITEM>

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pub fn item_updated(&self) -> bool

Tells if item was reloaded. If true is returned, the item was loaded from base and not from the cache.

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impl<'weak, ITEM: Debug + Sized> Debug for ICoWWeakRead<'weak, ITEM>

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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<'weak, ITEM: Sized> Deref for ICoWWeakRead<'weak, ITEM>

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type Target = ITEM

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.

Auto Trait Implementations§

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impl<'weak, ITEM> Freeze for ICoWWeakRead<'weak, ITEM>

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impl<'weak, ITEM> RefUnwindSafe for ICoWWeakRead<'weak, ITEM>
where ITEM: RefUnwindSafe,

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impl<'weak, ITEM> Send for ICoWWeakRead<'weak, ITEM>
where ITEM: Sync + Send,

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impl<'weak, ITEM> Sync for ICoWWeakRead<'weak, ITEM>
where ITEM: Sync + Send,

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impl<'weak, ITEM> Unpin for ICoWWeakRead<'weak, ITEM>

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impl<'weak, ITEM> UnwindSafe for ICoWWeakRead<'weak, ITEM>
where ITEM: RefUnwindSafe,

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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> 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<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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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, 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.