Struct ValidityMask 

pub struct ValidityMask { /* private fields */ }

Implementations

impl ValidityMask

pub fn from_values(values: &[Scalar]) -> Self

pub fn from_f64(data: &[f64]) -> Self

Build a validity mask from a contiguous f64 buffer, marking NaN positions invalid. pandas treats float NaN as missing, so this mirrors what from_values would produce for the equivalent Scalar::Float64 values (Scalar::is_missing is true for NaN). See Column::from_f64_values.

pub fn all_valid(len: usize) -> Self

pub fn all_invalid(len: usize) -> Self

pub fn get(&self, idx: usize) -> bool

pub fn set(&mut self, idx: usize, value: bool)

pub fn count_valid(&self) -> usize

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn and_mask(&self, other: &Self) -> Self

pub fn or_mask(&self, other: &Self) -> Self

pub fn not_mask(&self) -> Self

pub fn bits(&self) -> impl Iterator<Item = bool> + '_

Returns an iterator yielding bool values, compatible with the previous &[bool] API. Materializes from the packed representation.

pub fn count_invalid(&self) -> usize

Number of invalid (cleared) positions.

pub fn any(&self) -> bool

Whether any bit is set.

pub fn all(&self) -> bool

Whether all bits are set.

pub fn xor_mask(&self, other: &Self) -> Self

Bitwise XOR (symmetric difference) with another mask.

Produced length is min(self.len, other.len).

pub fn slice(&self, start: usize, len: usize) -> Self

Extract a contiguous sub-range as a new mask.

start..start+len is clamped to the available tail — callers don’t need to pre-validate against self.len.

pub fn concat(&self, other: &Self) -> Self

Append another mask’s bits to the end of this one.

pub fn first_valid(&self) -> Option<usize>

Position of the first valid bit.

pub fn last_valid(&self) -> Option<usize>

Position of the last valid bit.

Trait Implementations

impl Clone for ValidityMask

fn clone(&self) -> ValidityMask

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidityMask

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ValidityMask

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Eq for ValidityMask

impl PartialEq for ValidityMask

fn eq(&self, other: &Self) -> 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 ValidityMask

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.