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CapturedCompositionContext

Struct CapturedCompositionContext

pub struct CapturedCompositionContext { /* private fields */ }

Expand description

The composition context inherited by work that is composed in another slot host. Besides composition locals, this carries the source owner scope so a secondary tree cannot outlive the composition that supplied its callbacks.

Implementations§

impl CapturedCompositionContext

pub fn owner_chain_deactivation_epoch(&self) -> u64

Total deactivations along the capturing scope’s owner chain right now; see crate::RecomposeScope::owner_chain_deactivation_epoch. Zero when the context has no owner scope or it is gone.

Trait Implementations§

impl Clone for CapturedCompositionContext

fn clone(&self) -> CapturedCompositionContext

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

impl !RefUnwindSafe for CapturedCompositionContext

impl !Send for CapturedCompositionContext

impl !Sync for CapturedCompositionContext

impl !UnwindSafe for CapturedCompositionContext

impl Freeze for CapturedCompositionContext

impl Unpin for CapturedCompositionContext

impl UnsafeUnpin for CapturedCompositionContext

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

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

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = !

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.