Struct ValidityBitmap 

pub struct ValidityBitmap { /* private fields */ }

Packed validity bitmap (1 = valid). Missingness is never a sentinel value.

Implementations

impl ValidityBitmap

pub fn all_valid(len: usize) -> Self

All-valid bitmap of len bits.

pub fn from_bytes( bytes: impl Into<Arc<[u8]>>, len: usize, ) -> Result<Self, DataError>

Construct from raw bytes.

Errors

When the buffer is shorter than ceil(len/8).

pub const fn len(&self) -> usize

Bit length.

pub const fn is_empty(&self) -> bool

Whether empty.

pub fn as_mask_view(&self) -> Result<BitMaskView<'_>, DataError>

Borrow as a kernel mask view.

Errors

Propagates view construction errors.

pub fn is_valid(&self, i: usize) -> bool

Whether row i is valid.

pub fn is_all_valid(&self) -> bool

Whether every bit is valid.

pub fn gather(&self, row_map: &[u32]) -> Result<Self, DataError>

Gather bits through a row map (out[i] = self[row_map[i]]).

Errors

When a mapped row is out of range.

pub fn gather_rows(&self, row_map: &[usize]) -> Result<Self, DataError>

Gather bits through a usize row map.

Errors

When a mapped row is out of range.

pub fn compact(&self, keep: &[bool]) -> Result<Self, DataError>

Compact to rows where keep[i] is true.

Errors

Length mismatch.

pub fn concat(parts: &[&Self]) -> Result<Self, DataError>

Concatenate bitmaps end-to-end.

Errors

Propagates bitmap construction errors.

Trait Implementations

impl Clone for ValidityBitmap

fn clone(&self) -> ValidityBitmap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidityBitmap

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

Formats the value using the given formatter.

impl Default for ValidityBitmap

fn default() -> ValidityBitmap

Returns the “default value” for a type.

impl Eq for ValidityBitmap

impl PartialEq for ValidityBitmap

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ValidityBitmap