Struct DefaultEstimator 

pub struct DefaultEstimator<L: EstimationLogic, BL: Borrow<L>, B> { /* private fields */ }

A default estimator for generic EstimationLogic and backends.

Implementations

impl<L: EstimationLogic, BL: Borrow<L>, B> DefaultEstimator<L, BL, B>

pub const fn new(logic: BL, backend: B) -> Self

Creates a new default estimator for the specified logic and backend.

Arguments

• logic: the estimator logic.
• backend: the estimator’s backend.

Trait Implementations

impl<L: EstimationLogic + Clone, BL: Borrow<L>, B: AsMut<L::Backend>> AsMut<<L as EstimationLogic>::Backend> for DefaultEstimator<L, BL, B>

fn as_mut(&mut self) -> &mut L::Backend

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

impl<L: EstimationLogic + Clone, BL: Borrow<L>, B: AsRef<L::Backend>> AsRef<<L as EstimationLogic>::Backend> for DefaultEstimator<L, BL, B>

fn as_ref(&self) -> &L::Backend

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

impl<L: EstimationLogic + Clone, BL: Borrow<L>, B: AsRef<L::Backend>> Estimator<L> for DefaultEstimator<L, BL, B>

where for<'a> Box<L::Backend>: From<&'a L::Backend>,

type OwnedEstimator = DefaultEstimator<L, L, Box<<L as EstimationLogic>::Backend>>

The type returned by Estimator::into_owned.

fn logic(&self) -> &L

Returns the logic of the estimator.

fn estimate(&self) -> f64

Returns an estimation of the number of distinct elements that have been added to the estimator so far.

fn into_owned(self) -> Self::OwnedEstimator

Converts this estimator into an owned version capable of mutation.

impl<L: EstimationLogic + Clone, BL: Borrow<L>, B: AsRef<L::Backend> + AsMut<L::Backend>> EstimatorMut<L> for DefaultEstimator<L, BL, B>

where for<'a> Box<L::Backend>: From<&'a L::Backend>,

fn add(&mut self, element: impl Borrow<L::Item>)

Adds an element to the estimator.

fn clear(&mut self)

Clears the estimator, making it empty.

fn set(&mut self, backend: &L::Backend)

Sets the contents of self to the given backend.

impl<L: EstimationLogic + MergeEstimationLogic + Clone, BL: Borrow<L>, B: AsRef<L::Backend> + AsMut<L::Backend>> MergeEstimator<L> for DefaultEstimator<L, BL, B>

where for<'a> Box<L::Backend>: From<&'a L::Backend>,

fn merge(&mut self, other: &L::Backend)

Merges a backend into self.

fn merge_with_helper( &mut self, other: &L::Backend, helper: &mut <L as MergeEstimationLogic>::Helper, )

Merges a backend into self using the provided helper to avoid excessive allocations.