Struct tantivy::TrackedObject

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

Your tracked object.

A tracked object contains reference counting logic and an Arc to your object. It is cloneable but calling clone will not clone your internal object.

Your object cannot be mutated. You can borrow it using the Deref interface.

Implementations

impl<T> TrackedObject<T>

pub fn map<F>(&self, f: F) -> TrackedObject<T>where
    F: FnOnce(&T) -> T,

Creates a new object from an existing one.

The new object will be registered in your original object’s inventory.

use census::{Inventory, TrackedObject};

let inventory = Inventory::new();

let seven = inventory.track(7);
let fourteen = seven.map(|i| i * 2);
assert_eq!(*fourteen, 14);

let living_instances = inventory.list();
assert_eq!(living_instances.len(), 2);

Trait Implementations

impl<T> AsRef<T> for TrackedObject<T>

fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.

impl<T> Borrow<T> for TrackedObject<T>

fn borrow(&self) -> &T

Immutably borrows from an owned value.

impl<T> Clone for TrackedObject<T>where
    T: Clone,

fn clone(&self) -> TrackedObject<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for TrackedObject<T>where
    T: Debug,

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

Formats the value using the given formatter.

impl<T> Deref for TrackedObject<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl From<TrackedObject<InnerSegmentMeta>> for SegmentMeta

fn from(tracked: TrackedObject<InnerSegmentMeta>) -> SegmentMeta

Converts to this type from the input type.