Struct makepad_objc_sys::rc::WeakPtr

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pub struct WeakPtr(_);

Expand description

A pointer that weakly references an object, allowing to safely check whether it has been deallocated.

Implementations

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impl WeakPtr

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pub unsafe fn new(obj: *mut Object) -> Self

Constructs a WeakPtr to the given object. Unsafe because the caller must ensure the given object pointer is valid.

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pub fn load(&self) -> StrongPtr

Loads the object self points to, returning a StrongPtr. If the object has been deallocated, the returned pointer will be null.

Trait Implementations

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impl Clone for WeakPtr

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fn clone(&self) -> Self

Returns a copy of the value. Read more

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const fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Drop for WeakPtr

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations

impl !RefUnwindSafe for WeakPtr

impl !Send for WeakPtr

impl !Sync for WeakPtr

impl Unpin for WeakPtr

impl UnwindSafe for WeakPtr

Blanket Implementations

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impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

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

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

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 Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct makepad_objc_sys::rc::WeakPtr

Implementations

impl WeakPtr

pub unsafe fn new(obj: *mut Object) -> Self

pub fn load(&self) -> StrongPtr

Trait Implementations

impl Clone for WeakPtr

fn clone(&self) -> Self

const fn clone_from(&mut self, source: &Self)

impl Drop for WeakPtr

fn drop(&mut self)

Auto Trait Implementations

impl !RefUnwindSafe for WeakPtr

impl !Send for WeakPtr

impl !Sync for WeakPtr

impl Unpin for WeakPtr

impl UnwindSafe for WeakPtr

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere
U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct makepad_objc_sys::rc::WeakPtr

Implementations

impl WeakPtr

pub unsafe fn new(obj: *mut Object) -> Self

pub fn load(&self) -> StrongPtr

Trait Implementations

impl Clone for WeakPtr

fn clone(&self) -> Self

const fn clone_from(&mut self, source: &Self)

impl Drop for WeakPtr

fn drop(&mut self)

Auto Trait Implementations

impl !RefUnwindSafe for WeakPtr

impl !Send for WeakPtr

impl !Sync for WeakPtr

impl Unpin for WeakPtr

impl UnwindSafe for WeakPtr

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,