Enum WindowStep 

pub enum WindowStep {
    Absolute(Duration),
    Days(i64),
    Weeks(i64),
}

How a window advances the cursor.

The distinction matters only in a timezone that observes DST, and only for day/week windows: stepping a “day” by a fixed 24 hours drifts off local midnight after a transition, so the unit labelled 2026-03-08 would cover 00:00 → next day 01:00 (25 local hours) and every later unit would start an hour late. Sub-day windows have no such expectation — an hour is an hour — so they stay absolute (#461).

Variants

Absolute(Duration)

A fixed elapsed duration (s / m / h, or a bare integer = seconds).

Days(i64)

N calendar days in the range’s timezone.

Weeks(i64)

N calendar weeks in the range’s timezone.

Trait Implementations

impl Clone for WindowStep

fn clone(&self) -> WindowStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WindowStep

impl Debug for WindowStep

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

Formats the value using the given formatter.

impl Display for WindowStep

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

Stable form used in the range-hash descriptor that keys a progress marker.

An absolute window renders as its seconds, exactly as before this type existed, so a backfill already in flight keeps its marker and resumes. A calendar window renders as Nd / Nw, which deliberately hashes differently: its unit boundaries are not the ones the old plan produced, so resuming against a marker from that plan would mix two different unit sets.

impl Eq for WindowStep

impl PartialEq for WindowStep

fn eq(&self, other: &WindowStep) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for WindowStep