Struct IndexSnapshot 

pub struct IndexSnapshot {
    pub index: IndexId,
    pub year_month: YearMonth,
    pub constituents: Vec<Constituent>,
}

A full snapshot of index constituents for a given month.

constituents may contain rows from multiple calendar dates within the month (when daily-resolution data exists) or just one row per holding (when only monthly N-PORT data is available). Rows are sorted by (as_of, -weight).

Fields

index: IndexId

The index this snapshot represents.

year_month: YearMonth

Month of the snapshot.

constituents: Vec<Constituent>

Holdings. Multi-date if daily data is available.

Implementations

impl IndexSnapshot

pub fn has_weights(&self) -> bool

Whether this snapshot carries weight data.

Returns true if at least one row has a finite weight value (i.e. it came from a CDN, Wayback, or N-PORT source). Returns false if every row is ticker-only (all GitHub mirror sources) or the snapshot is empty.

Useful as a quick gate for analytics code: a snapshot with has_weights() == false is a ticker universe only, not a weight vector.

Trait Implementations

impl Clone for IndexSnapshot

fn clone(&self) -> IndexSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexSnapshot

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for IndexSnapshot

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for IndexSnapshot

fn eq(&self, other: &IndexSnapshot) -> 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 Serialize for IndexSnapshot

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for IndexSnapshot