Struct VarLenStore 

pub struct VarLenStore { /* private fields */ }

Packed variable-length sequence storage.

Uses the Arrow ListArray pattern: a flat contiguous data array plus an offsets array that marks sequence boundaries.

Implementations

impl VarLenStore

pub fn new() -> Self

Create an empty store.

pub fn push(&mut self, sequence: &[u32])

Append a variable-length sequence.

pub fn num_sequences(&self) -> usize

Number of sequences stored.

pub fn total_elements(&self) -> usize

Total number of elements across all sequences.

pub fn get(&self, index: usize) -> &[u32]

Get the i-th sequence as a slice.

Panics

Panics if index >= num_sequences().

pub fn sequence_len(&self, index: usize) -> usize

Length of the i-th sequence.

pub fn flat_data(&self) -> &[u32]

Raw flat data array.

pub fn offsets(&self) -> &[u64]

Raw offsets array.

Trait Implementations

impl Default for VarLenStore

fn default() -> Self

Returns the “default value” for a type.