Struct qcell::QCellOwnerID

pub struct QCellOwnerID(_);

Internal ID associated with a QCell owner.

The only purpose of this is to create QCell instances without requiring a borrow on the owner. A QCellOwnerID can be passed to any code that needs to create QCell instances. However to access those QCell instances after creation will still require a borrow on the original owner. Create a QCellOwnerID from an owner using owner.into() or owner.id().

Safety

Whilst the existence of this type does mean that an ID can exist longer than than the owner, all that allows is new QCell instances to be created after the owner has gone. But QCell instances can outlive the owner in any case, so this makes no difference to safety.

Implementations

impl QCellOwnerID

pub fn cell<T>(self, value: T) -> QCell<T>

Create a new cell owned by this owner-ID. See also QCell::new.

Trait Implementations

impl Clone for QCellOwnerID

fn clone(&self) -> QCellOwnerID

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<&'_ QCellOwner> for QCellOwnerID

fn from(owner: &QCellOwner) -> Self

Converts to this type from the input type.

impl From<&'_ QCellOwnerSeq> for QCellOwnerID

fn from(owner: &QCellOwnerSeq) -> Self

Converts to this type from the input type.

impl From<Pin<&'_ QCellOwnerPinned>> for QCellOwnerID

fn from(owner: Pin<&QCellOwnerPinned>) -> Self

Converts to this type from the input type.

impl Copy for QCellOwnerID