Struct windows_core::Weak

pub struct Weak<I: Interface>(/* private fields */);
Expand description

Weak holds a non-owning reference to an object.

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impl<I: Interface> Weak<I>

pub fn new() -> Self

Creates a new Weak object without any backing object.

pub fn upgrade(&self) -> Option<I>

Attempts to upgrade the weak reference to a strong reference.

Trait Implementations§

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impl<I: Clone + Interface> Clone for Weak<I>

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fn clone(&self) -> Weak<I>

Returns a copy 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<I: Default + Interface> Default for Weak<I>

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fn default() -> Weak<I>

Returns the “default value” for a type. Read more
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impl<I: PartialEq + Interface> PartialEq for Weak<I>

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fn eq(&self, other: &Weak<I>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<I: Eq + Interface> Eq for Weak<I>

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impl<I: Interface> StructuralPartialEq for Weak<I>

Auto Trait Implementations§

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impl<I> Freeze for Weak<I>

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impl<I> RefUnwindSafe for Weak<I>
where I: RefUnwindSafe,

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impl<I> !Send for Weak<I>

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impl<I> !Sync for Weak<I>

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impl<I> Unpin for Weak<I>
where I: Unpin,

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impl<I> UnwindSafe for Weak<I>
where I: UnwindSafe,

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> 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.