Struct TinyWeak 

pub struct TinyWeak<T>(/* private fields */);

A weak reference to a TinyArc, which is a thread-safe reference-counting tiny pointer. Essentially, it is non owning, and can be upgraded to a TinyArc at any time to access the data.

Example

use tinypointers::TinyArc;

let owned = TinyArc::new(42);
let non_owned = TinyArc::downgrade(&owned);
assert_eq!(*owned, 42);
assert_eq!(*non_owned.upgrade(), 42);

Implementations

impl<T> TinyWeak<T>

pub fn upgrade(&self) -> TinyArc<T>

Attempts to upgrade the TinyWeak pointer to an TinyArc, extending the lifetime of the data if successful.

Example

use tinypointers::TinyArc;

let owned = TinyArc::new(42);
let non_owned = TinyArc::downgrade(&owned);

drop(owned);

let owned = non_owned.upgrade(); // Panics

Panics

This panics if the data has since been dropped. I.E. if the TinyArc count is zero.

Trait Implementations

impl<T> Clone for TinyWeak<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for TinyWeak<T>

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

Formats the value using the given formatter.

impl<T: Send + Sync> Send for TinyWeak<T>

impl<T: Send + Sync> Sync for TinyWeak<T>