Enum PeriodSlot 

pub enum PeriodSlot {
    Q1,
    Q2,
    Q3,
    Q4,
    FY,
    H1,
    H2,
    M3,
    M6,
    M9,
    M12,
}

Canonical period-slot categories parsed from raw fiscal-period labels.

This enum is intentionally source-format agnostic: multiple token styles map into the small stable set used by filtering and trend ranking.

Recognised aliases:

• Quarters: Q1..Q4
• Annual: FY, ANNUAL
• Semi-annual: H1/H2, HY1/HY2, SA1/SA2, S1/S2
• Month windows: 3M, 6M, 9M, 12M

Variants

Q1

Q2

Q3

Q4

FY

H1

H2

M3

M6

M9

M12

Implementations

impl PeriodSlot

pub fn normalized_quarter(self) -> i64

Maps the slot to a normalised quarter-space rank (1..=4).

Higher rank = later in the fiscal year. Sort descending on this value to get newest-first row ordering.

Rank	Slots
4	Q4, FY, H2, 12M
3	Q3, 9M
2	Q2, H1, 6M
1	Q1, 3M

Trait Implementations

impl Clone for PeriodSlot

fn clone(&self) -> PeriodSlot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PeriodSlot

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

Formats the value using the given formatter.

impl PartialEq for PeriodSlot

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for PeriodSlot

impl Eq for PeriodSlot

impl StructuralPartialEq for PeriodSlot