Struct AnyCollection 

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

A type-erased wrapper for any collection that implements Collection.

This allows storing collections of different concrete types in the same container while preserving the ability to observe them through the Collection interface. Items are returned as Box<dyn Any> to allow runtime type checking.

Implementations

impl<T> AnyCollection<T>

pub fn new<C>(collection: C) -> Self

where C: Collection<Item = T>,

Creates a new AnyCollection from any type that implements Collection.

pub fn get(&self, index: usize) -> Option<T>

Gets an item from the collection at the specified index.

Returns None if the index is out of bounds. The returned item is type-erased as Box<dyn Any>.

pub fn len(&self) -> usize

Returns the number of items in the collection.

pub fn is_empty(&self) -> bool

Returns true if the collection contains no elements.

pub fn watch( &self, range: impl RangeBounds<usize>, watcher: impl for<'a> Fn(Context<&'a [T]>) + 'static, ) -> BoxWatcherGuard

Registers a watcher for changes in the specified range of the collection.

The watcher receives a Vec<Box<dyn Any>> of items. Returns a type-erased guard that will unregister the watcher when dropped.

Trait Implementations

impl<T> Debug for AnyCollection<T>

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

Formats the value using the given formatter.