Struct ValueTracker 

pub struct ValueTracker<T: Clone> { /* private fields */ }

Value tracker for monitoring changes over time

Useful for EDD (Equation-Driven Development) where you want to verify that values change according to expected patterns.

Implementations

impl<T: Clone> ValueTracker<T>

pub fn new(name: &str) -> Self

Create a new value tracker

pub fn record(&mut self, timestamp_ms: u64, value: T)

Record a value at a timestamp

pub fn name(&self) -> &str

Get the tracker name

pub fn values(&self) -> &[(u64, T)]

Get all recorded values

pub fn latest(&self) -> Option<&T>

Get the latest value

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

Get value at specific index

pub fn len(&self) -> usize

Get the number of recorded values

pub fn is_empty(&self) -> bool

Check if tracker is empty

pub fn clear(&mut self)

Clear all recorded values

impl<T: Clone + PartialEq> ValueTracker<T>

pub fn has_changed(&self) -> bool

Check if value changed since last recording

pub fn change_count(&self) -> usize

Count how many times the value changed

impl ValueTracker<f64>

pub fn rate_of_change(&self) -> Option<f64>

Calculate the rate of change (delta per millisecond)

pub fn is_increasing(&self) -> bool

Check if value is monotonically increasing

pub fn is_decreasing(&self) -> bool

Check if value is monotonically decreasing

pub fn min(&self) -> Option<f64>

Get the minimum value

pub fn max(&self) -> Option<f64>

Get the maximum value

pub fn average(&self) -> Option<f64>

Get the average value

impl ValueTracker<i64>

pub fn is_increasing(&self) -> bool

Check if value is monotonically increasing

pub fn is_decreasing(&self) -> bool

Check if value is monotonically decreasing

Trait Implementations

impl<T: Clone + Clone> Clone for ValueTracker<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + Clone> Debug for ValueTracker<T>

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

Formats the value using the given formatter.