Struct Owned 

pub struct Owned<T> { /* private fields */ }

Single-threaded owner for values remembered by the Composer.

This type stores T inside an Rc<RefCell<...>>, allowing cheap cloning of the handle while keeping ownership of T within the composition.

Implementations

impl<T> Owned<T>

pub fn new(value: T) -> Self

pub fn with<R>(&self, f: impl FnOnce(&T) -> R) -> R

Run f with an immutable reference to the stored value.

pub fn update<R>(&self, f: impl FnOnce(&mut T) -> R) -> R

Run f with a mutable reference to the stored value.

pub fn borrow(&self) -> Ref<'_, T>

Borrow the stored value immutably.

pub fn borrow_mut(&self) -> RefMut<'_, T>

Borrow the stored value mutably.

pub fn replace(&self, new_value: T)

Replace the stored value entirely.

Trait Implementations

impl<T> Clone for Owned<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.