Struct PruningMetrics 

pub struct PruningMetrics { /* private fields */ }

Counters tracking pruning metrics

For example, a file scanner initially is planned to scan 10 files, but skipped 8 of them using statistics, the pruning metrics would look like: 10 total -> 2 matched

Note cloneing update the same underlying metrics

Implementations

impl PruningMetrics

pub fn new() -> Self

create a new PruningMetrics

pub fn add_pruned(&self, n: usize)

Add n to the metric’s pruned value

pub fn add_matched(&self, n: usize)

Add n to the metric’s matched value

pub fn subtract_matched(&self, n: usize)

Subtract n to the metric’s matched value.

pub fn pruned(&self) -> usize

Number of items pruned

pub fn matched(&self) -> usize

Number of items matched (not pruned)

Trait Implementations

impl Clone for PruningMetrics

fn clone(&self) -> PruningMetrics

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PruningMetrics

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

Formats the value using the given formatter.

impl Default for PruningMetrics

fn default() -> Self

Returns the “default value” for a type.

impl Display for PruningMetrics

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

Formats the value using the given formatter.