Struct CacheView 

pub struct CacheView { /* private fields */ }

Read-only view over the platform cache.

Adapter-facing code receives this type instead of the mutable cache handle so cache writes stay owned by the data and execution engines.

Implementations

impl CacheView

pub fn new(inner: Rc<RefCell<Cache>>) -> Self

Creates a new CacheView from a cache handle.

pub fn try_borrow(&self) -> Result<Ref<'_, Cache>, BorrowError>

Tries to borrow the cache without panicking when an engine owns a mutable borrow.

Errors

Returns an error when the cache is mutably borrowed.

pub fn borrow(&self) -> Ref<'_, Cache>

Borrows the cache immutably.

Panics

Panics if the cache is already mutably borrowed.

Trait Implementations

impl Clone for CacheView

fn clone(&self) -> CacheView

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheView

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

Formats the value using the given formatter.

impl From<Rc<RefCell<Cache>>> for CacheView

fn from(inner: Rc<RefCell<Cache>>) -> Self

Converts to this type from the input type.