Struct ArcRef 

pub struct ArcRef<T: ?Sized, C: ?Sized = T> { /* private fields */ }

A wrapper type for an immutably borrowed value from an ArcRefCell<T>.

Implementations

impl<T: ?Sized, C: ?Sized> ArcRef<T, C>

pub fn map<U: ?Sized, F>(orig: ArcRef<T, C>, f: F) -> ArcRef<U, C>

where F: FnOnce(&T) -> &U,

Make a new ArcRef for a component of the borrowed data.

pub fn filter_map<U: ?Sized, F>( orig: ArcRef<T, C>, f: F, ) -> Option<ArcRef<U, C>>

where F: FnOnce(&T) -> Option<&U>,

Make a new ArcRef for an optional component of the borrowed data.

Trait Implementations

impl<T: ?Sized, C: ?Sized> Clone for ArcRef<T, C>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: ?Sized + Debug, C: ?Sized> Debug for ArcRef<T, C>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: ?Sized, C: ?Sized> Deref for ArcRef<T, C>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T: ?Sized, C: ?Sized> NonBlockingGuardedBorrow<T> for ArcRef<T, C>

type Guard<'a> = &'a T where T: 'a, Self: 'a

The guard type (for example, std::cell::Ref<'a, T>.)

type BorrowError<'a> = Infallible where T: 'a, Self: 'a

The type returned in the case the value cannot be borrowed.

fn try_nonblocking_guarded_borrow( &self, ) -> Result<Self::Guard<'_>, Self::BorrowError<'_>>

Attempt to perform the borrow.

impl<T: ?Sized, C: ?Sized> NonBlockingGuardedMutBorrowMut<T> for ArcRef<T, C>

type MutGuardMut<'a> = &'a mut T where T: 'a, Self: 'a

The guard type (for example, std::sync::RwLockWriteGuard<'a, T>.)

type MutBorrowMutError<'a> = &'static str where T: 'a, Self: 'a

The type returned in the case the value cannot be borrowed.

fn try_nonblocking_guarded_mut_borrow_mut( &mut self, ) -> Result<Self::MutGuardMut<'_>, Self::MutBorrowMutError<'_>>

Attempt to perform the borrow.

impl<T: Send + Sync, C: ?Sized + Send + Sync> Send for ArcRef<T, C>

impl<T: Send + Sync, C: ?Sized> Sync for ArcRef<T, C>