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VWeakMapped

vtable

Struct VWeakMapped 

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pub struct VWeakMapped<VTable: VTableMetaDropInPlace + 'static, MappedType: ?Sized> { /* private fields */ }
Expand description

VWeakMapped allows bundling a VWeak with a reference to an object that’s reachable from the object a successfully upgraded VWeak points to. VWeakMapped’s API consists only of the ability to create clones and to attempt upgrading back to a VRcMapped.

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impl<VTable: VTableMetaDropInPlace + 'static, MappedType: ?Sized> VWeakMapped<VTable, MappedType>

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pub fn upgrade(&self) -> Option<VRcMapped<VTable, MappedType>>

Returns a new VRcMapped if some other instance still holds a strong reference to the owned object. Otherwise, returns None.

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impl<VTable: VTableMetaDropInPlace + 'static, MappedType: ?Sized> Clone for VWeakMapped<VTable, MappedType>

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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<VTable: VTableMetaDropInPlace + 'static, MappedType> Default for VWeakMapped<VTable, MappedType>

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<VTable, MappedType> Freeze for VWeakMapped<VTable, MappedType>
where MappedType: ?Sized,

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impl<VTable, MappedType> RefUnwindSafe for VWeakMapped<VTable, MappedType>
where MappedType: RefUnwindSafe + ?Sized, <VTable as VTableMeta>::VTable: RefUnwindSafe,

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impl<VTable, MappedType> !Send for VWeakMapped<VTable, MappedType>

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impl<VTable, MappedType> !Sync for VWeakMapped<VTable, MappedType>

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impl<VTable, MappedType> Unpin for VWeakMapped<VTable, MappedType>
where MappedType: ?Sized,

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impl<VTable, MappedType> UnwindSafe for VWeakMapped<VTable, MappedType>
where MappedType: RefUnwindSafe + ?Sized, <VTable as VTableMeta>::VTable: RefUnwindSafe,

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<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.